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[thirdparty/grsecurity-scrape.git] / test / grsecurity-3.0-3.15.5-201407151839.patch
1 diff --git a/Documentation/dontdiff b/Documentation/dontdiff
2 index 9de9813..1462492 100644
3 --- a/Documentation/dontdiff
4 +++ b/Documentation/dontdiff
5 @@ -3,9 +3,11 @@
6 *.bc
7 *.bin
8 *.bz2
9 +*.c.[012]*.*
10 *.cis
11 *.cpio
12 *.csp
13 +*.dbg
14 *.dsp
15 *.dvi
16 *.elf
17 @@ -15,6 +17,7 @@
18 *.gcov
19 *.gen.S
20 *.gif
21 +*.gmo
22 *.grep
23 *.grp
24 *.gz
25 @@ -51,14 +54,17 @@
26 *.tab.h
27 *.tex
28 *.ver
29 +*.vim
30 *.xml
31 *.xz
32 *_MODULES
33 +*_reg_safe.h
34 *_vga16.c
35 *~
36 \#*#
37 *.9
38 -.*
39 +.[^g]*
40 +.gen*
41 .*.d
42 .mm
43 53c700_d.h
44 @@ -72,9 +78,11 @@ Image
45 Module.markers
46 Module.symvers
47 PENDING
48 +PERF*
49 SCCS
50 System.map*
51 TAGS
52 +TRACEEVENT-CFLAGS
53 aconf
54 af_names.h
55 aic7*reg.h*
56 @@ -83,6 +91,7 @@ aic7*seq.h*
57 aicasm
58 aicdb.h*
59 altivec*.c
60 +ashldi3.S
61 asm-offsets.h
62 asm_offsets.h
63 autoconf.h*
64 @@ -95,32 +104,40 @@ bounds.h
65 bsetup
66 btfixupprep
67 build
68 +builtin-policy.h
69 bvmlinux
70 bzImage*
71 capability_names.h
72 capflags.c
73 classlist.h*
74 +clut_vga16.c
75 +common-cmds.h
76 comp*.log
77 compile.h*
78 conf
79 config
80 config-*
81 config_data.h*
82 +config.c
83 config.mak
84 config.mak.autogen
85 +config.tmp
86 conmakehash
87 consolemap_deftbl.c*
88 cpustr.h
89 crc32table.h*
90 cscope.*
91 defkeymap.c
92 +devicetable-offsets.h
93 devlist.h*
94 dnotify_test
95 docproc
96 dslm
97 +dtc-lexer.lex.c
98 elf2ecoff
99 elfconfig.h*
100 evergreen_reg_safe.h
101 +exception_policy.conf
102 fixdep
103 flask.h
104 fore200e_mkfirm
105 @@ -128,12 +145,15 @@ fore200e_pca_fw.c*
106 gconf
107 gconf.glade.h
108 gen-devlist
109 +gen-kdb_cmds.c
110 gen_crc32table
111 gen_init_cpio
112 generated
113 genheaders
114 genksyms
115 *_gray256.c
116 +hash
117 +hid-example
118 hpet_example
119 hugepage-mmap
120 hugepage-shm
121 @@ -148,14 +168,14 @@ int32.c
122 int4.c
123 int8.c
124 kallsyms
125 -kconfig
126 +kern_constants.h
127 keywords.c
128 ksym.c*
129 ksym.h*
130 kxgettext
131 lex.c
132 lex.*.c
133 -linux
134 +lib1funcs.S
135 logo_*.c
136 logo_*_clut224.c
137 logo_*_mono.c
138 @@ -165,14 +185,15 @@ mach-types.h
139 machtypes.h
140 map
141 map_hugetlb
142 -media
143 mconf
144 +mdp
145 miboot*
146 mk_elfconfig
147 mkboot
148 mkbugboot
149 mkcpustr
150 mkdep
151 +mkpiggy
152 mkprep
153 mkregtable
154 mktables
155 @@ -188,6 +209,8 @@ oui.c*
156 page-types
157 parse.c
158 parse.h
159 +parse-events*
160 +pasyms.h
161 patches*
162 pca200e.bin
163 pca200e_ecd.bin2
164 @@ -197,6 +220,7 @@ perf-archive
165 piggyback
166 piggy.gzip
167 piggy.S
168 +pmu-*
169 pnmtologo
170 ppc_defs.h*
171 pss_boot.h
172 @@ -206,7 +230,12 @@ r200_reg_safe.h
173 r300_reg_safe.h
174 r420_reg_safe.h
175 r600_reg_safe.h
176 +randomize_layout_hash.h
177 +randomize_layout_seed.h
178 +realmode.lds
179 +realmode.relocs
180 recordmcount
181 +regdb.c
182 relocs
183 rlim_names.h
184 rn50_reg_safe.h
185 @@ -216,8 +245,12 @@ series
186 setup
187 setup.bin
188 setup.elf
189 +signing_key*
190 +size_overflow_hash.h
191 sImage
192 +slabinfo
193 sm_tbl*
194 +sortextable
195 split-include
196 syscalltab.h
197 tables.c
198 @@ -227,6 +260,7 @@ tftpboot.img
199 timeconst.h
200 times.h*
201 trix_boot.h
202 +user_constants.h
203 utsrelease.h*
204 vdso-syms.lds
205 vdso.lds
206 @@ -238,13 +272,17 @@ vdso32.lds
207 vdso32.so.dbg
208 vdso64.lds
209 vdso64.so.dbg
210 +vdsox32.lds
211 +vdsox32-syms.lds
212 version.h*
213 vmImage
214 vmlinux
215 vmlinux-*
216 vmlinux.aout
217 vmlinux.bin.all
218 +vmlinux.bin.bz2
219 vmlinux.lds
220 +vmlinux.relocs
221 vmlinuz
222 voffset.h
223 vsyscall.lds
224 @@ -252,9 +290,12 @@ vsyscall_32.lds
225 wanxlfw.inc
226 uImage
227 unifdef
228 +utsrelease.h
229 wakeup.bin
230 wakeup.elf
231 wakeup.lds
232 +x509*
233 zImage*
234 zconf.hash.c
235 +zconf.lex.c
236 zoffset.h
237 diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
238 index 30a8ad0d..2ed9efd 100644
239 --- a/Documentation/kernel-parameters.txt
240 +++ b/Documentation/kernel-parameters.txt
241 @@ -1103,6 +1103,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
242 Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
243 Default: 1024
244
245 + grsec_proc_gid= [GRKERNSEC_PROC_USERGROUP] Chooses GID to
246 + ignore grsecurity's /proc restrictions
247 +
248 +
249 hashdist= [KNL,NUMA] Large hashes allocated during boot
250 are distributed across NUMA nodes. Defaults on
251 for 64-bit NUMA, off otherwise.
252 @@ -2099,6 +2103,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
253 noexec=on: enable non-executable mappings (default)
254 noexec=off: disable non-executable mappings
255
256 + nopcid [X86-64]
257 + Disable PCID (Process-Context IDentifier) even if it
258 + is supported by the processor.
259 +
260 nosmap [X86]
261 Disable SMAP (Supervisor Mode Access Prevention)
262 even if it is supported by processor.
263 @@ -2366,6 +2374,25 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
264 the specified number of seconds. This is to be used if
265 your oopses keep scrolling off the screen.
266
267 + pax_nouderef [X86] disables UDEREF. Most likely needed under certain
268 + virtualization environments that don't cope well with the
269 + expand down segment used by UDEREF on X86-32 or the frequent
270 + page table updates on X86-64.
271 +
272 + pax_sanitize_slab=
273 + 0/1 to disable/enable slab object sanitization (enabled by
274 + default).
275 +
276 + pax_softmode= 0/1 to disable/enable PaX softmode on boot already.
277 +
278 + pax_extra_latent_entropy
279 + Enable a very simple form of latent entropy extraction
280 + from the first 4GB of memory as the bootmem allocator
281 + passes the memory pages to the buddy allocator.
282 +
283 + pax_weakuderef [X86-64] enables the weaker but faster form of UDEREF
284 + when the processor supports PCID.
285 +
286 pcbit= [HW,ISDN]
287
288 pcd. [PARIDE]
289 diff --git a/Makefile b/Makefile
290 index e6b01ed..74dbc85 100644
291 --- a/Makefile
292 +++ b/Makefile
293 @@ -246,7 +246,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
294 HOSTCC = gcc
295 HOSTCXX = g++
296 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
297 -HOSTCXXFLAGS = -O2
298 +HOSTCFLAGS = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks
299 +HOSTCFLAGS += $(call cc-option, -Wno-empty-body)
300 +HOSTCXXFLAGS = -O2 -Wall -W -Wno-array-bounds
301
302 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
303 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
304 @@ -438,8 +440,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
305 # Rules shared between *config targets and build targets
306
307 # Basic helpers built in scripts/
308 -PHONY += scripts_basic
309 -scripts_basic:
310 +PHONY += scripts_basic gcc-plugins
311 +scripts_basic: gcc-plugins
312 $(Q)$(MAKE) $(build)=scripts/basic
313 $(Q)rm -f .tmp_quiet_recordmcount
314
315 @@ -600,6 +602,72 @@ else
316 KBUILD_CFLAGS += -O2
317 endif
318
319 +ifndef DISABLE_PAX_PLUGINS
320 +ifeq ($(call cc-ifversion, -ge, 0408, y), y)
321 +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)")
322 +else
323 +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)")
324 +endif
325 +ifneq ($(PLUGINCC),)
326 +ifdef CONFIG_PAX_CONSTIFY_PLUGIN
327 +CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN
328 +endif
329 +ifdef CONFIG_PAX_MEMORY_STACKLEAK
330 +STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN
331 +STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100
332 +endif
333 +ifdef CONFIG_KALLOCSTAT_PLUGIN
334 +KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so
335 +endif
336 +ifdef CONFIG_PAX_KERNEXEC_PLUGIN
337 +KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so
338 +KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN
339 +KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN
340 +endif
341 +ifdef CONFIG_GRKERNSEC_RANDSTRUCT
342 +RANDSTRUCT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/randomize_layout_plugin.so -DRANDSTRUCT_PLUGIN
343 +ifdef CONFIG_GRKERNSEC_RANDSTRUCT_PERFORMANCE
344 +RANDSTRUCT_PLUGIN_CFLAGS += -fplugin-arg-randomize_layout_plugin-performance-mode
345 +endif
346 +endif
347 +ifdef CONFIG_CHECKER_PLUGIN
348 +ifeq ($(call cc-ifversion, -ge, 0406, y), y)
349 +CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN
350 +endif
351 +endif
352 +COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so
353 +ifdef CONFIG_PAX_SIZE_OVERFLOW
354 +SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN
355 +endif
356 +ifdef CONFIG_PAX_LATENT_ENTROPY
357 +LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN
358 +endif
359 +ifdef CONFIG_PAX_MEMORY_STRUCTLEAK
360 +STRUCTLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/structleak_plugin.so -DSTRUCTLEAK_PLUGIN
361 +endif
362 +GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS)
363 +GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS)
364 +GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS) $(STRUCTLEAK_PLUGIN_CFLAGS)
365 +GCC_PLUGINS_CFLAGS += $(RANDSTRUCT_PLUGIN_CFLAGS)
366 +GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS)
367 +export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS CONSTIFY_PLUGIN LATENT_ENTROPY_PLUGIN_CFLAGS
368 +ifeq ($(KBUILD_EXTMOD),)
369 +gcc-plugins:
370 + $(Q)$(MAKE) $(build)=tools/gcc
371 +else
372 +gcc-plugins: ;
373 +endif
374 +else
375 +gcc-plugins:
376 +ifeq ($(call cc-ifversion, -ge, 0405, y), y)
377 + $(error Your gcc installation does not support plugins. If the necessary headers for plugin support are missing, they should be installed. On Debian, apt-get install gcc-<ver>-plugin-dev. If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.))
378 +else
379 + $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least"
380 +endif
381 + $(Q)echo "PAX_MEMORY_STACKLEAK, constification, PAX_LATENT_ENTROPY and other features will be less secure. PAX_SIZE_OVERFLOW will not be active."
382 +endif
383 +endif
384 +
385 include $(srctree)/arch/$(SRCARCH)/Makefile
386
387 ifdef CONFIG_READABLE_ASM
388 @@ -816,7 +884,7 @@ export mod_sign_cmd
389
390
391 ifeq ($(KBUILD_EXTMOD),)
392 -core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
393 +core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
394
395 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
396 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
397 @@ -865,6 +933,8 @@ endif
398
399 # The actual objects are generated when descending,
400 # make sure no implicit rule kicks in
401 +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
402 +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
403 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
404
405 # Handle descending into subdirectories listed in $(vmlinux-dirs)
406 @@ -874,7 +944,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
407 # Error messages still appears in the original language
408
409 PHONY += $(vmlinux-dirs)
410 -$(vmlinux-dirs): prepare scripts
411 +$(vmlinux-dirs): gcc-plugins prepare scripts
412 $(Q)$(MAKE) $(build)=$@
413
414 define filechk_kernel.release
415 @@ -917,10 +987,13 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
416
417 archprepare: archheaders archscripts prepare1 scripts_basic
418
419 +prepare0: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
420 +prepare0: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
421 prepare0: archprepare FORCE
422 $(Q)$(MAKE) $(build)=.
423
424 # All the preparing..
425 +prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
426 prepare: prepare0
427
428 # Generate some files
429 @@ -1028,6 +1101,8 @@ all: modules
430 # using awk while concatenating to the final file.
431
432 PHONY += modules
433 +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
434 +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
435 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
436 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
437 @$(kecho) ' Building modules, stage 2.';
438 @@ -1043,7 +1118,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
439
440 # Target to prepare building external modules
441 PHONY += modules_prepare
442 -modules_prepare: prepare scripts
443 +modules_prepare: gcc-plugins prepare scripts
444
445 # Target to install modules
446 PHONY += modules_install
447 @@ -1109,7 +1184,10 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
448 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
449 signing_key.priv signing_key.x509 x509.genkey \
450 extra_certificates signing_key.x509.keyid \
451 - signing_key.x509.signer include/linux/version.h
452 + signing_key.x509.signer include/linux/version.h \
453 + tools/gcc/size_overflow_plugin/size_overflow_hash_aux.h \
454 + tools/gcc/size_overflow_plugin/size_overflow_hash.h \
455 + tools/gcc/randomize_layout_seed.h
456
457 # clean - Delete most, but leave enough to build external modules
458 #
459 @@ -1148,7 +1226,7 @@ distclean: mrproper
460 @find $(srctree) $(RCS_FIND_IGNORE) \
461 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
462 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
463 - -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
464 + -o -name '.*.rej' -o -name '*.so' -o -name '*%' -o -name 'core' \) \
465 -type f -print | xargs rm -f
466
467
468 @@ -1309,6 +1387,8 @@ PHONY += $(module-dirs) modules
469 $(module-dirs): crmodverdir $(objtree)/Module.symvers
470 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
471
472 +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
473 +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
474 modules: $(module-dirs)
475 @$(kecho) ' Building modules, stage 2.';
476 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
477 @@ -1448,17 +1528,21 @@ else
478 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
479 endif
480
481 -%.s: %.c prepare scripts FORCE
482 +%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
483 +%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
484 +%.s: %.c gcc-plugins prepare scripts FORCE
485 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
486 %.i: %.c prepare scripts FORCE
487 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
488 -%.o: %.c prepare scripts FORCE
489 +%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
490 +%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
491 +%.o: %.c gcc-plugins prepare scripts FORCE
492 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
493 %.lst: %.c prepare scripts FORCE
494 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
495 -%.s: %.S prepare scripts FORCE
496 +%.s: %.S gcc-plugins prepare scripts FORCE
497 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
498 -%.o: %.S prepare scripts FORCE
499 +%.o: %.S gcc-plugins prepare scripts FORCE
500 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
501 %.symtypes: %.c prepare scripts FORCE
502 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
503 @@ -1468,11 +1552,15 @@ endif
504 $(cmd_crmodverdir)
505 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
506 $(build)=$(build-dir)
507 -%/: prepare scripts FORCE
508 +%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
509 +%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
510 +%/: gcc-plugins prepare scripts FORCE
511 $(cmd_crmodverdir)
512 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
513 $(build)=$(build-dir)
514 -%.ko: prepare scripts FORCE
515 +%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
516 +%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
517 +%.ko: gcc-plugins prepare scripts FORCE
518 $(cmd_crmodverdir)
519 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
520 $(build)=$(build-dir) $(@:.ko=.o)
521 diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
522 index 78b03ef..da28a51 100644
523 --- a/arch/alpha/include/asm/atomic.h
524 +++ b/arch/alpha/include/asm/atomic.h
525 @@ -292,6 +292,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
526 #define atomic_dec(v) atomic_sub(1,(v))
527 #define atomic64_dec(v) atomic64_sub(1,(v))
528
529 +#define atomic64_read_unchecked(v) atomic64_read(v)
530 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
531 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
532 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
533 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
534 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
535 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
536 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
537 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
538 +
539 #define smp_mb__before_atomic_dec() smp_mb()
540 #define smp_mb__after_atomic_dec() smp_mb()
541 #define smp_mb__before_atomic_inc() smp_mb()
542 diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
543 index ad368a9..fbe0f25 100644
544 --- a/arch/alpha/include/asm/cache.h
545 +++ b/arch/alpha/include/asm/cache.h
546 @@ -4,19 +4,19 @@
547 #ifndef __ARCH_ALPHA_CACHE_H
548 #define __ARCH_ALPHA_CACHE_H
549
550 +#include <linux/const.h>
551
552 /* Bytes per L1 (data) cache line. */
553 #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
554 -# define L1_CACHE_BYTES 64
555 # define L1_CACHE_SHIFT 6
556 #else
557 /* Both EV4 and EV5 are write-through, read-allocate,
558 direct-mapped, physical.
559 */
560 -# define L1_CACHE_BYTES 32
561 # define L1_CACHE_SHIFT 5
562 #endif
563
564 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
565 #define SMP_CACHE_BYTES L1_CACHE_BYTES
566
567 #endif
568 diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
569 index 968d999..d36b2df 100644
570 --- a/arch/alpha/include/asm/elf.h
571 +++ b/arch/alpha/include/asm/elf.h
572 @@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
573
574 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
575
576 +#ifdef CONFIG_PAX_ASLR
577 +#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
578 +
579 +#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
580 +#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
581 +#endif
582 +
583 /* $0 is set by ld.so to a pointer to a function which might be
584 registered using atexit. This provides a mean for the dynamic
585 linker to call DT_FINI functions for shared libraries that have
586 diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
587 index aab14a0..b4fa3e7 100644
588 --- a/arch/alpha/include/asm/pgalloc.h
589 +++ b/arch/alpha/include/asm/pgalloc.h
590 @@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
591 pgd_set(pgd, pmd);
592 }
593
594 +static inline void
595 +pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
596 +{
597 + pgd_populate(mm, pgd, pmd);
598 +}
599 +
600 extern pgd_t *pgd_alloc(struct mm_struct *mm);
601
602 static inline void
603 diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
604 index d8f9b7e..f6222fa 100644
605 --- a/arch/alpha/include/asm/pgtable.h
606 +++ b/arch/alpha/include/asm/pgtable.h
607 @@ -102,6 +102,17 @@ struct vm_area_struct;
608 #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
609 #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
610 #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
611 +
612 +#ifdef CONFIG_PAX_PAGEEXEC
613 +# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
614 +# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
615 +# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
616 +#else
617 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
618 +# define PAGE_COPY_NOEXEC PAGE_COPY
619 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
620 +#endif
621 +
622 #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
623
624 #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
625 diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
626 index 2fd00b7..cfd5069 100644
627 --- a/arch/alpha/kernel/module.c
628 +++ b/arch/alpha/kernel/module.c
629 @@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
630
631 /* The small sections were sorted to the end of the segment.
632 The following should definitely cover them. */
633 - gp = (u64)me->module_core + me->core_size - 0x8000;
634 + gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
635 got = sechdrs[me->arch.gotsecindex].sh_addr;
636
637 for (i = 0; i < n; i++) {
638 diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
639 index 1402fcc..0b1abd2 100644
640 --- a/arch/alpha/kernel/osf_sys.c
641 +++ b/arch/alpha/kernel/osf_sys.c
642 @@ -1298,10 +1298,11 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
643 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
644
645 static unsigned long
646 -arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
647 - unsigned long limit)
648 +arch_get_unmapped_area_1(struct file *filp, unsigned long addr, unsigned long len,
649 + unsigned long limit, unsigned long flags)
650 {
651 struct vm_unmapped_area_info info;
652 + unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
653
654 info.flags = 0;
655 info.length = len;
656 @@ -1309,6 +1310,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
657 info.high_limit = limit;
658 info.align_mask = 0;
659 info.align_offset = 0;
660 + info.threadstack_offset = offset;
661 return vm_unmapped_area(&info);
662 }
663
664 @@ -1341,20 +1343,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
665 merely specific addresses, but regions of memory -- perhaps
666 this feature should be incorporated into all ports? */
667
668 +#ifdef CONFIG_PAX_RANDMMAP
669 + if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
670 +#endif
671 +
672 if (addr) {
673 - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
674 + addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(addr), len, limit, flags);
675 if (addr != (unsigned long) -ENOMEM)
676 return addr;
677 }
678
679 /* Next, try allocating at TASK_UNMAPPED_BASE. */
680 - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
681 - len, limit);
682 + addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(current->mm->mmap_base), len, limit, flags);
683 +
684 if (addr != (unsigned long) -ENOMEM)
685 return addr;
686
687 /* Finally, try allocating in low memory. */
688 - addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
689 + addr = arch_get_unmapped_area_1 (filp, PAGE_SIZE, len, limit, flags);
690
691 return addr;
692 }
693 diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
694 index 98838a0..b304fb4 100644
695 --- a/arch/alpha/mm/fault.c
696 +++ b/arch/alpha/mm/fault.c
697 @@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
698 __reload_thread(pcb);
699 }
700
701 +#ifdef CONFIG_PAX_PAGEEXEC
702 +/*
703 + * PaX: decide what to do with offenders (regs->pc = fault address)
704 + *
705 + * returns 1 when task should be killed
706 + * 2 when patched PLT trampoline was detected
707 + * 3 when unpatched PLT trampoline was detected
708 + */
709 +static int pax_handle_fetch_fault(struct pt_regs *regs)
710 +{
711 +
712 +#ifdef CONFIG_PAX_EMUPLT
713 + int err;
714 +
715 + do { /* PaX: patched PLT emulation #1 */
716 + unsigned int ldah, ldq, jmp;
717 +
718 + err = get_user(ldah, (unsigned int *)regs->pc);
719 + err |= get_user(ldq, (unsigned int *)(regs->pc+4));
720 + err |= get_user(jmp, (unsigned int *)(regs->pc+8));
721 +
722 + if (err)
723 + break;
724 +
725 + if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
726 + (ldq & 0xFFFF0000U) == 0xA77B0000U &&
727 + jmp == 0x6BFB0000U)
728 + {
729 + unsigned long r27, addr;
730 + unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
731 + unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
732 +
733 + addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
734 + err = get_user(r27, (unsigned long *)addr);
735 + if (err)
736 + break;
737 +
738 + regs->r27 = r27;
739 + regs->pc = r27;
740 + return 2;
741 + }
742 + } while (0);
743 +
744 + do { /* PaX: patched PLT emulation #2 */
745 + unsigned int ldah, lda, br;
746 +
747 + err = get_user(ldah, (unsigned int *)regs->pc);
748 + err |= get_user(lda, (unsigned int *)(regs->pc+4));
749 + err |= get_user(br, (unsigned int *)(regs->pc+8));
750 +
751 + if (err)
752 + break;
753 +
754 + if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
755 + (lda & 0xFFFF0000U) == 0xA77B0000U &&
756 + (br & 0xFFE00000U) == 0xC3E00000U)
757 + {
758 + unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
759 + unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
760 + unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
761 +
762 + regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
763 + regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
764 + return 2;
765 + }
766 + } while (0);
767 +
768 + do { /* PaX: unpatched PLT emulation */
769 + unsigned int br;
770 +
771 + err = get_user(br, (unsigned int *)regs->pc);
772 +
773 + if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
774 + unsigned int br2, ldq, nop, jmp;
775 + unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
776 +
777 + addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
778 + err = get_user(br2, (unsigned int *)addr);
779 + err |= get_user(ldq, (unsigned int *)(addr+4));
780 + err |= get_user(nop, (unsigned int *)(addr+8));
781 + err |= get_user(jmp, (unsigned int *)(addr+12));
782 + err |= get_user(resolver, (unsigned long *)(addr+16));
783 +
784 + if (err)
785 + break;
786 +
787 + if (br2 == 0xC3600000U &&
788 + ldq == 0xA77B000CU &&
789 + nop == 0x47FF041FU &&
790 + jmp == 0x6B7B0000U)
791 + {
792 + regs->r28 = regs->pc+4;
793 + regs->r27 = addr+16;
794 + regs->pc = resolver;
795 + return 3;
796 + }
797 + }
798 + } while (0);
799 +#endif
800 +
801 + return 1;
802 +}
803 +
804 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
805 +{
806 + unsigned long i;
807 +
808 + printk(KERN_ERR "PAX: bytes at PC: ");
809 + for (i = 0; i < 5; i++) {
810 + unsigned int c;
811 + if (get_user(c, (unsigned int *)pc+i))
812 + printk(KERN_CONT "???????? ");
813 + else
814 + printk(KERN_CONT "%08x ", c);
815 + }
816 + printk("\n");
817 +}
818 +#endif
819
820 /*
821 * This routine handles page faults. It determines the address,
822 @@ -133,8 +251,29 @@ retry:
823 good_area:
824 si_code = SEGV_ACCERR;
825 if (cause < 0) {
826 - if (!(vma->vm_flags & VM_EXEC))
827 + if (!(vma->vm_flags & VM_EXEC)) {
828 +
829 +#ifdef CONFIG_PAX_PAGEEXEC
830 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
831 + goto bad_area;
832 +
833 + up_read(&mm->mmap_sem);
834 + switch (pax_handle_fetch_fault(regs)) {
835 +
836 +#ifdef CONFIG_PAX_EMUPLT
837 + case 2:
838 + case 3:
839 + return;
840 +#endif
841 +
842 + }
843 + pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
844 + do_group_exit(SIGKILL);
845 +#else
846 goto bad_area;
847 +#endif
848 +
849 + }
850 } else if (!cause) {
851 /* Allow reads even for write-only mappings */
852 if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
853 diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
854 index db3c541..a1acc89 100644
855 --- a/arch/arm/Kconfig
856 +++ b/arch/arm/Kconfig
857 @@ -1877,7 +1877,7 @@ config ALIGNMENT_TRAP
858
859 config UACCESS_WITH_MEMCPY
860 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
861 - depends on MMU
862 + depends on MMU && !PAX_MEMORY_UDEREF
863 default y if CPU_FEROCEON
864 help
865 Implement faster copy_to_user and clear_user methods for CPU
866 @@ -2141,6 +2141,7 @@ config XIP_PHYS_ADDR
867 config KEXEC
868 bool "Kexec system call (EXPERIMENTAL)"
869 depends on (!SMP || PM_SLEEP_SMP)
870 + depends on !GRKERNSEC_KMEM
871 help
872 kexec is a system call that implements the ability to shutdown your
873 current kernel, and to start another kernel. It is like a reboot
874 diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
875 index 9a92fd7..3502a80 100644
876 --- a/arch/arm/include/asm/atomic.h
877 +++ b/arch/arm/include/asm/atomic.h
878 @@ -18,17 +18,35 @@
879 #include <asm/barrier.h>
880 #include <asm/cmpxchg.h>
881
882 +#ifdef CONFIG_GENERIC_ATOMIC64
883 +#include <asm-generic/atomic64.h>
884 +#endif
885 +
886 #define ATOMIC_INIT(i) { (i) }
887
888 #ifdef __KERNEL__
889
890 +#define _ASM_EXTABLE(from, to) \
891 +" .pushsection __ex_table,\"a\"\n"\
892 +" .align 3\n" \
893 +" .long " #from ", " #to"\n" \
894 +" .popsection"
895 +
896 /*
897 * On ARM, ordinary assignment (str instruction) doesn't clear the local
898 * strex/ldrex monitor on some implementations. The reason we can use it for
899 * atomic_set() is the clrex or dummy strex done on every exception return.
900 */
901 #define atomic_read(v) (*(volatile int *)&(v)->counter)
902 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
903 +{
904 + return v->counter;
905 +}
906 #define atomic_set(v,i) (((v)->counter) = (i))
907 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
908 +{
909 + v->counter = i;
910 +}
911
912 #if __LINUX_ARM_ARCH__ >= 6
913
914 @@ -44,6 +62,36 @@ static inline void atomic_add(int i, atomic_t *v)
915
916 prefetchw(&v->counter);
917 __asm__ __volatile__("@ atomic_add\n"
918 +"1: ldrex %1, [%3]\n"
919 +" adds %0, %1, %4\n"
920 +
921 +#ifdef CONFIG_PAX_REFCOUNT
922 +" bvc 3f\n"
923 +"2: bkpt 0xf103\n"
924 +"3:\n"
925 +#endif
926 +
927 +" strex %1, %0, [%3]\n"
928 +" teq %1, #0\n"
929 +" bne 1b"
930 +
931 +#ifdef CONFIG_PAX_REFCOUNT
932 +"\n4:\n"
933 + _ASM_EXTABLE(2b, 4b)
934 +#endif
935 +
936 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
937 + : "r" (&v->counter), "Ir" (i)
938 + : "cc");
939 +}
940 +
941 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
942 +{
943 + unsigned long tmp;
944 + int result;
945 +
946 + prefetchw(&v->counter);
947 + __asm__ __volatile__("@ atomic_add_unchecked\n"
948 "1: ldrex %0, [%3]\n"
949 " add %0, %0, %4\n"
950 " strex %1, %0, [%3]\n"
951 @@ -63,6 +111,43 @@ static inline int atomic_add_return(int i, atomic_t *v)
952 prefetchw(&v->counter);
953
954 __asm__ __volatile__("@ atomic_add_return\n"
955 +"1: ldrex %1, [%3]\n"
956 +" adds %0, %1, %4\n"
957 +
958 +#ifdef CONFIG_PAX_REFCOUNT
959 +" bvc 3f\n"
960 +" mov %0, %1\n"
961 +"2: bkpt 0xf103\n"
962 +"3:\n"
963 +#endif
964 +
965 +" strex %1, %0, [%3]\n"
966 +" teq %1, #0\n"
967 +" bne 1b"
968 +
969 +#ifdef CONFIG_PAX_REFCOUNT
970 +"\n4:\n"
971 + _ASM_EXTABLE(2b, 4b)
972 +#endif
973 +
974 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
975 + : "r" (&v->counter), "Ir" (i)
976 + : "cc");
977 +
978 + smp_mb();
979 +
980 + return result;
981 +}
982 +
983 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
984 +{
985 + unsigned long tmp;
986 + int result;
987 +
988 + smp_mb();
989 + prefetchw(&v->counter);
990 +
991 + __asm__ __volatile__("@ atomic_add_return_unchecked\n"
992 "1: ldrex %0, [%3]\n"
993 " add %0, %0, %4\n"
994 " strex %1, %0, [%3]\n"
995 @@ -84,6 +169,36 @@ static inline void atomic_sub(int i, atomic_t *v)
996
997 prefetchw(&v->counter);
998 __asm__ __volatile__("@ atomic_sub\n"
999 +"1: ldrex %1, [%3]\n"
1000 +" subs %0, %1, %4\n"
1001 +
1002 +#ifdef CONFIG_PAX_REFCOUNT
1003 +" bvc 3f\n"
1004 +"2: bkpt 0xf103\n"
1005 +"3:\n"
1006 +#endif
1007 +
1008 +" strex %1, %0, [%3]\n"
1009 +" teq %1, #0\n"
1010 +" bne 1b"
1011 +
1012 +#ifdef CONFIG_PAX_REFCOUNT
1013 +"\n4:\n"
1014 + _ASM_EXTABLE(2b, 4b)
1015 +#endif
1016 +
1017 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1018 + : "r" (&v->counter), "Ir" (i)
1019 + : "cc");
1020 +}
1021 +
1022 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
1023 +{
1024 + unsigned long tmp;
1025 + int result;
1026 +
1027 + prefetchw(&v->counter);
1028 + __asm__ __volatile__("@ atomic_sub_unchecked\n"
1029 "1: ldrex %0, [%3]\n"
1030 " sub %0, %0, %4\n"
1031 " strex %1, %0, [%3]\n"
1032 @@ -103,11 +218,25 @@ static inline int atomic_sub_return(int i, atomic_t *v)
1033 prefetchw(&v->counter);
1034
1035 __asm__ __volatile__("@ atomic_sub_return\n"
1036 -"1: ldrex %0, [%3]\n"
1037 -" sub %0, %0, %4\n"
1038 +"1: ldrex %1, [%3]\n"
1039 +" subs %0, %1, %4\n"
1040 +
1041 +#ifdef CONFIG_PAX_REFCOUNT
1042 +" bvc 3f\n"
1043 +" mov %0, %1\n"
1044 +"2: bkpt 0xf103\n"
1045 +"3:\n"
1046 +#endif
1047 +
1048 " strex %1, %0, [%3]\n"
1049 " teq %1, #0\n"
1050 " bne 1b"
1051 +
1052 +#ifdef CONFIG_PAX_REFCOUNT
1053 +"\n4:\n"
1054 + _ASM_EXTABLE(2b, 4b)
1055 +#endif
1056 +
1057 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1058 : "r" (&v->counter), "Ir" (i)
1059 : "cc");
1060 @@ -152,12 +281,24 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1061 __asm__ __volatile__ ("@ atomic_add_unless\n"
1062 "1: ldrex %0, [%4]\n"
1063 " teq %0, %5\n"
1064 -" beq 2f\n"
1065 -" add %1, %0, %6\n"
1066 +" beq 4f\n"
1067 +" adds %1, %0, %6\n"
1068 +
1069 +#ifdef CONFIG_PAX_REFCOUNT
1070 +" bvc 3f\n"
1071 +"2: bkpt 0xf103\n"
1072 +"3:\n"
1073 +#endif
1074 +
1075 " strex %2, %1, [%4]\n"
1076 " teq %2, #0\n"
1077 " bne 1b\n"
1078 -"2:"
1079 +"4:"
1080 +
1081 +#ifdef CONFIG_PAX_REFCOUNT
1082 + _ASM_EXTABLE(2b, 4b)
1083 +#endif
1084 +
1085 : "=&r" (oldval), "=&r" (newval), "=&r" (tmp), "+Qo" (v->counter)
1086 : "r" (&v->counter), "r" (u), "r" (a)
1087 : "cc");
1088 @@ -168,6 +309,28 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1089 return oldval;
1090 }
1091
1092 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
1093 +{
1094 + unsigned long oldval, res;
1095 +
1096 + smp_mb();
1097 +
1098 + do {
1099 + __asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
1100 + "ldrex %1, [%3]\n"
1101 + "mov %0, #0\n"
1102 + "teq %1, %4\n"
1103 + "strexeq %0, %5, [%3]\n"
1104 + : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1105 + : "r" (&ptr->counter), "Ir" (old), "r" (new)
1106 + : "cc");
1107 + } while (res);
1108 +
1109 + smp_mb();
1110 +
1111 + return oldval;
1112 +}
1113 +
1114 #else /* ARM_ARCH_6 */
1115
1116 #ifdef CONFIG_SMP
1117 @@ -186,7 +349,17 @@ static inline int atomic_add_return(int i, atomic_t *v)
1118
1119 return val;
1120 }
1121 +
1122 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
1123 +{
1124 + return atomic_add_return(i, v);
1125 +}
1126 +
1127 #define atomic_add(i, v) (void) atomic_add_return(i, v)
1128 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
1129 +{
1130 + (void) atomic_add_return(i, v);
1131 +}
1132
1133 static inline int atomic_sub_return(int i, atomic_t *v)
1134 {
1135 @@ -201,6 +374,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
1136 return val;
1137 }
1138 #define atomic_sub(i, v) (void) atomic_sub_return(i, v)
1139 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
1140 +{
1141 + (void) atomic_sub_return(i, v);
1142 +}
1143
1144 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1145 {
1146 @@ -216,6 +393,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1147 return ret;
1148 }
1149
1150 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
1151 +{
1152 + return atomic_cmpxchg(v, old, new);
1153 +}
1154 +
1155 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1156 {
1157 int c, old;
1158 @@ -229,13 +411,33 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1159 #endif /* __LINUX_ARM_ARCH__ */
1160
1161 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
1162 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
1163 +{
1164 + return xchg(&v->counter, new);
1165 +}
1166
1167 #define atomic_inc(v) atomic_add(1, v)
1168 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
1169 +{
1170 + atomic_add_unchecked(1, v);
1171 +}
1172 #define atomic_dec(v) atomic_sub(1, v)
1173 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
1174 +{
1175 + atomic_sub_unchecked(1, v);
1176 +}
1177
1178 #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
1179 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
1180 +{
1181 + return atomic_add_return_unchecked(1, v) == 0;
1182 +}
1183 #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
1184 #define atomic_inc_return(v) (atomic_add_return(1, v))
1185 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
1186 +{
1187 + return atomic_add_return_unchecked(1, v);
1188 +}
1189 #define atomic_dec_return(v) (atomic_sub_return(1, v))
1190 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
1191
1192 @@ -251,6 +453,14 @@ typedef struct {
1193 long long counter;
1194 } atomic64_t;
1195
1196 +#ifdef CONFIG_PAX_REFCOUNT
1197 +typedef struct {
1198 + long long counter;
1199 +} atomic64_unchecked_t;
1200 +#else
1201 +typedef atomic64_t atomic64_unchecked_t;
1202 +#endif
1203 +
1204 #define ATOMIC64_INIT(i) { (i) }
1205
1206 #ifdef CONFIG_ARM_LPAE
1207 @@ -267,6 +477,19 @@ static inline long long atomic64_read(const atomic64_t *v)
1208 return result;
1209 }
1210
1211 +static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
1212 +{
1213 + long long result;
1214 +
1215 + __asm__ __volatile__("@ atomic64_read_unchecked\n"
1216 +" ldrd %0, %H0, [%1]"
1217 + : "=&r" (result)
1218 + : "r" (&v->counter), "Qo" (v->counter)
1219 + );
1220 +
1221 + return result;
1222 +}
1223 +
1224 static inline void atomic64_set(atomic64_t *v, long long i)
1225 {
1226 __asm__ __volatile__("@ atomic64_set\n"
1227 @@ -275,6 +498,15 @@ static inline void atomic64_set(atomic64_t *v, long long i)
1228 : "r" (&v->counter), "r" (i)
1229 );
1230 }
1231 +
1232 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
1233 +{
1234 + __asm__ __volatile__("@ atomic64_set_unchecked\n"
1235 +" strd %2, %H2, [%1]"
1236 + : "=Qo" (v->counter)
1237 + : "r" (&v->counter), "r" (i)
1238 + );
1239 +}
1240 #else
1241 static inline long long atomic64_read(const atomic64_t *v)
1242 {
1243 @@ -289,6 +521,19 @@ static inline long long atomic64_read(const atomic64_t *v)
1244 return result;
1245 }
1246
1247 +static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
1248 +{
1249 + long long result;
1250 +
1251 + __asm__ __volatile__("@ atomic64_read_unchecked\n"
1252 +" ldrexd %0, %H0, [%1]"
1253 + : "=&r" (result)
1254 + : "r" (&v->counter), "Qo" (v->counter)
1255 + );
1256 +
1257 + return result;
1258 +}
1259 +
1260 static inline void atomic64_set(atomic64_t *v, long long i)
1261 {
1262 long long tmp;
1263 @@ -303,6 +548,21 @@ static inline void atomic64_set(atomic64_t *v, long long i)
1264 : "r" (&v->counter), "r" (i)
1265 : "cc");
1266 }
1267 +
1268 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
1269 +{
1270 + long long tmp;
1271 +
1272 + prefetchw(&v->counter);
1273 + __asm__ __volatile__("@ atomic64_set_unchecked\n"
1274 +"1: ldrexd %0, %H0, [%2]\n"
1275 +" strexd %0, %3, %H3, [%2]\n"
1276 +" teq %0, #0\n"
1277 +" bne 1b"
1278 + : "=&r" (tmp), "=Qo" (v->counter)
1279 + : "r" (&v->counter), "r" (i)
1280 + : "cc");
1281 +}
1282 #endif
1283
1284 static inline void atomic64_add(long long i, atomic64_t *v)
1285 @@ -314,6 +574,37 @@ static inline void atomic64_add(long long i, atomic64_t *v)
1286 __asm__ __volatile__("@ atomic64_add\n"
1287 "1: ldrexd %0, %H0, [%3]\n"
1288 " adds %Q0, %Q0, %Q4\n"
1289 +" adcs %R0, %R0, %R4\n"
1290 +
1291 +#ifdef CONFIG_PAX_REFCOUNT
1292 +" bvc 3f\n"
1293 +"2: bkpt 0xf103\n"
1294 +"3:\n"
1295 +#endif
1296 +
1297 +" strexd %1, %0, %H0, [%3]\n"
1298 +" teq %1, #0\n"
1299 +" bne 1b"
1300 +
1301 +#ifdef CONFIG_PAX_REFCOUNT
1302 +"\n4:\n"
1303 + _ASM_EXTABLE(2b, 4b)
1304 +#endif
1305 +
1306 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1307 + : "r" (&v->counter), "r" (i)
1308 + : "cc");
1309 +}
1310 +
1311 +static inline void atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
1312 +{
1313 + long long result;
1314 + unsigned long tmp;
1315 +
1316 + prefetchw(&v->counter);
1317 + __asm__ __volatile__("@ atomic64_add_unchecked\n"
1318 +"1: ldrexd %0, %H0, [%3]\n"
1319 +" adds %Q0, %Q0, %Q4\n"
1320 " adc %R0, %R0, %R4\n"
1321 " strexd %1, %0, %H0, [%3]\n"
1322 " teq %1, #0\n"
1323 @@ -334,6 +625,44 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
1324 __asm__ __volatile__("@ atomic64_add_return\n"
1325 "1: ldrexd %0, %H0, [%3]\n"
1326 " adds %Q0, %Q0, %Q4\n"
1327 +" adcs %R0, %R0, %R4\n"
1328 +
1329 +#ifdef CONFIG_PAX_REFCOUNT
1330 +" bvc 3f\n"
1331 +" mov %0, %1\n"
1332 +" mov %H0, %H1\n"
1333 +"2: bkpt 0xf103\n"
1334 +"3:\n"
1335 +#endif
1336 +
1337 +" strexd %1, %0, %H0, [%3]\n"
1338 +" teq %1, #0\n"
1339 +" bne 1b"
1340 +
1341 +#ifdef CONFIG_PAX_REFCOUNT
1342 +"\n4:\n"
1343 + _ASM_EXTABLE(2b, 4b)
1344 +#endif
1345 +
1346 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1347 + : "r" (&v->counter), "r" (i)
1348 + : "cc");
1349 +
1350 + smp_mb();
1351 +
1352 + return result;
1353 +}
1354 +
1355 +static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
1356 +{
1357 + long long result;
1358 + unsigned long tmp;
1359 +
1360 + smp_mb();
1361 +
1362 + __asm__ __volatile__("@ atomic64_add_return_unchecked\n"
1363 +"1: ldrexd %0, %H0, [%3]\n"
1364 +" adds %Q0, %Q0, %Q4\n"
1365 " adc %R0, %R0, %R4\n"
1366 " strexd %1, %0, %H0, [%3]\n"
1367 " teq %1, #0\n"
1368 @@ -356,6 +685,37 @@ static inline void atomic64_sub(long long i, atomic64_t *v)
1369 __asm__ __volatile__("@ atomic64_sub\n"
1370 "1: ldrexd %0, %H0, [%3]\n"
1371 " subs %Q0, %Q0, %Q4\n"
1372 +" sbcs %R0, %R0, %R4\n"
1373 +
1374 +#ifdef CONFIG_PAX_REFCOUNT
1375 +" bvc 3f\n"
1376 +"2: bkpt 0xf103\n"
1377 +"3:\n"
1378 +#endif
1379 +
1380 +" strexd %1, %0, %H0, [%3]\n"
1381 +" teq %1, #0\n"
1382 +" bne 1b"
1383 +
1384 +#ifdef CONFIG_PAX_REFCOUNT
1385 +"\n4:\n"
1386 + _ASM_EXTABLE(2b, 4b)
1387 +#endif
1388 +
1389 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1390 + : "r" (&v->counter), "r" (i)
1391 + : "cc");
1392 +}
1393 +
1394 +static inline void atomic64_sub_unchecked(long long i, atomic64_unchecked_t *v)
1395 +{
1396 + long long result;
1397 + unsigned long tmp;
1398 +
1399 + prefetchw(&v->counter);
1400 + __asm__ __volatile__("@ atomic64_sub_unchecked\n"
1401 +"1: ldrexd %0, %H0, [%3]\n"
1402 +" subs %Q0, %Q0, %Q4\n"
1403 " sbc %R0, %R0, %R4\n"
1404 " strexd %1, %0, %H0, [%3]\n"
1405 " teq %1, #0\n"
1406 @@ -376,16 +736,29 @@ static inline long long atomic64_sub_return(long long i, atomic64_t *v)
1407 __asm__ __volatile__("@ atomic64_sub_return\n"
1408 "1: ldrexd %0, %H0, [%3]\n"
1409 " subs %Q0, %Q0, %Q4\n"
1410 -" sbc %R0, %R0, %R4\n"
1411 +" sbcs %R0, %R0, %R4\n"
1412 +
1413 +#ifdef CONFIG_PAX_REFCOUNT
1414 +" bvc 3f\n"
1415 +" mov %0, %1\n"
1416 +" mov %H0, %H1\n"
1417 +"2: bkpt 0xf103\n"
1418 +"3:\n"
1419 +#endif
1420 +
1421 " strexd %1, %0, %H0, [%3]\n"
1422 " teq %1, #0\n"
1423 " bne 1b"
1424 +
1425 +#ifdef CONFIG_PAX_REFCOUNT
1426 +"\n4:\n"
1427 + _ASM_EXTABLE(2b, 4b)
1428 +#endif
1429 +
1430 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1431 : "r" (&v->counter), "r" (i)
1432 : "cc");
1433
1434 - smp_mb();
1435 -
1436 return result;
1437 }
1438
1439 @@ -415,6 +788,31 @@ static inline long long atomic64_cmpxchg(atomic64_t *ptr, long long old,
1440 return oldval;
1441 }
1442
1443 +static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, long long old,
1444 + long long new)
1445 +{
1446 + long long oldval;
1447 + unsigned long res;
1448 +
1449 + smp_mb();
1450 +
1451 + do {
1452 + __asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
1453 + "ldrexd %1, %H1, [%3]\n"
1454 + "mov %0, #0\n"
1455 + "teq %1, %4\n"
1456 + "teqeq %H1, %H4\n"
1457 + "strexdeq %0, %5, %H5, [%3]"
1458 + : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1459 + : "r" (&ptr->counter), "r" (old), "r" (new)
1460 + : "cc");
1461 + } while (res);
1462 +
1463 + smp_mb();
1464 +
1465 + return oldval;
1466 +}
1467 +
1468 static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
1469 {
1470 long long result;
1471 @@ -440,21 +838,35 @@ static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
1472 static inline long long atomic64_dec_if_positive(atomic64_t *v)
1473 {
1474 long long result;
1475 - unsigned long tmp;
1476 + u64 tmp;
1477
1478 smp_mb();
1479 prefetchw(&v->counter);
1480
1481 __asm__ __volatile__("@ atomic64_dec_if_positive\n"
1482 -"1: ldrexd %0, %H0, [%3]\n"
1483 -" subs %Q0, %Q0, #1\n"
1484 -" sbc %R0, %R0, #0\n"
1485 +"1: ldrexd %1, %H1, [%3]\n"
1486 +" subs %Q0, %Q1, #1\n"
1487 +" sbcs %R0, %R1, #0\n"
1488 +
1489 +#ifdef CONFIG_PAX_REFCOUNT
1490 +" bvc 3f\n"
1491 +" mov %Q0, %Q1\n"
1492 +" mov %R0, %R1\n"
1493 +"2: bkpt 0xf103\n"
1494 +"3:\n"
1495 +#endif
1496 +
1497 " teq %R0, #0\n"
1498 -" bmi 2f\n"
1499 +" bmi 4f\n"
1500 " strexd %1, %0, %H0, [%3]\n"
1501 " teq %1, #0\n"
1502 " bne 1b\n"
1503 -"2:"
1504 +"4:\n"
1505 +
1506 +#ifdef CONFIG_PAX_REFCOUNT
1507 + _ASM_EXTABLE(2b, 4b)
1508 +#endif
1509 +
1510 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1511 : "r" (&v->counter)
1512 : "cc");
1513 @@ -478,13 +890,25 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
1514 " teq %0, %5\n"
1515 " teqeq %H0, %H5\n"
1516 " moveq %1, #0\n"
1517 -" beq 2f\n"
1518 +" beq 4f\n"
1519 " adds %Q0, %Q0, %Q6\n"
1520 -" adc %R0, %R0, %R6\n"
1521 +" adcs %R0, %R0, %R6\n"
1522 +
1523 +#ifdef CONFIG_PAX_REFCOUNT
1524 +" bvc 3f\n"
1525 +"2: bkpt 0xf103\n"
1526 +"3:\n"
1527 +#endif
1528 +
1529 " strexd %2, %0, %H0, [%4]\n"
1530 " teq %2, #0\n"
1531 " bne 1b\n"
1532 -"2:"
1533 +"4:\n"
1534 +
1535 +#ifdef CONFIG_PAX_REFCOUNT
1536 + _ASM_EXTABLE(2b, 4b)
1537 +#endif
1538 +
1539 : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
1540 : "r" (&v->counter), "r" (u), "r" (a)
1541 : "cc");
1542 @@ -497,10 +921,13 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
1543
1544 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
1545 #define atomic64_inc(v) atomic64_add(1LL, (v))
1546 +#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1LL, (v))
1547 #define atomic64_inc_return(v) atomic64_add_return(1LL, (v))
1548 +#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1LL, (v))
1549 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
1550 #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
1551 #define atomic64_dec(v) atomic64_sub(1LL, (v))
1552 +#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1LL, (v))
1553 #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v))
1554 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
1555 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
1556 diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
1557 index 2f59f74..1594659 100644
1558 --- a/arch/arm/include/asm/barrier.h
1559 +++ b/arch/arm/include/asm/barrier.h
1560 @@ -63,7 +63,7 @@
1561 do { \
1562 compiletime_assert_atomic_type(*p); \
1563 smp_mb(); \
1564 - ACCESS_ONCE(*p) = (v); \
1565 + ACCESS_ONCE_RW(*p) = (v); \
1566 } while (0)
1567
1568 #define smp_load_acquire(p) \
1569 diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
1570 index 75fe66b..ba3dee4 100644
1571 --- a/arch/arm/include/asm/cache.h
1572 +++ b/arch/arm/include/asm/cache.h
1573 @@ -4,8 +4,10 @@
1574 #ifndef __ASMARM_CACHE_H
1575 #define __ASMARM_CACHE_H
1576
1577 +#include <linux/const.h>
1578 +
1579 #define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT
1580 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
1581 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
1582
1583 /*
1584 * Memory returned by kmalloc() may be used for DMA, so we must make
1585 @@ -24,5 +26,6 @@
1586 #endif
1587
1588 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
1589 +#define __read_only __attribute__ ((__section__(".data..read_only")))
1590
1591 #endif
1592 diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
1593 index 8b8b616..d973d24 100644
1594 --- a/arch/arm/include/asm/cacheflush.h
1595 +++ b/arch/arm/include/asm/cacheflush.h
1596 @@ -116,7 +116,7 @@ struct cpu_cache_fns {
1597 void (*dma_unmap_area)(const void *, size_t, int);
1598
1599 void (*dma_flush_range)(const void *, const void *);
1600 -};
1601 +} __no_const;
1602
1603 /*
1604 * Select the calling method
1605 diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
1606 index 5233151..87a71fa 100644
1607 --- a/arch/arm/include/asm/checksum.h
1608 +++ b/arch/arm/include/asm/checksum.h
1609 @@ -37,7 +37,19 @@ __wsum
1610 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
1611
1612 __wsum
1613 -csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
1614 +__csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
1615 +
1616 +static inline __wsum
1617 +csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr)
1618 +{
1619 + __wsum ret;
1620 + pax_open_userland();
1621 + ret = __csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
1622 + pax_close_userland();
1623 + return ret;
1624 +}
1625 +
1626 +
1627
1628 /*
1629 * Fold a partial checksum without adding pseudo headers
1630 diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
1631 index abb2c37..96db950 100644
1632 --- a/arch/arm/include/asm/cmpxchg.h
1633 +++ b/arch/arm/include/asm/cmpxchg.h
1634 @@ -104,6 +104,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
1635
1636 #define xchg(ptr,x) \
1637 ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1638 +#define xchg_unchecked(ptr,x) \
1639 + ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1640
1641 #include <asm-generic/cmpxchg-local.h>
1642
1643 diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
1644 index 6ddbe44..b5e38b1 100644
1645 --- a/arch/arm/include/asm/domain.h
1646 +++ b/arch/arm/include/asm/domain.h
1647 @@ -48,18 +48,37 @@
1648 * Domain types
1649 */
1650 #define DOMAIN_NOACCESS 0
1651 -#define DOMAIN_CLIENT 1
1652 #ifdef CONFIG_CPU_USE_DOMAINS
1653 +#define DOMAIN_USERCLIENT 1
1654 +#define DOMAIN_KERNELCLIENT 1
1655 #define DOMAIN_MANAGER 3
1656 +#define DOMAIN_VECTORS DOMAIN_USER
1657 #else
1658 +
1659 +#ifdef CONFIG_PAX_KERNEXEC
1660 #define DOMAIN_MANAGER 1
1661 +#define DOMAIN_KERNEXEC 3
1662 +#else
1663 +#define DOMAIN_MANAGER 1
1664 +#endif
1665 +
1666 +#ifdef CONFIG_PAX_MEMORY_UDEREF
1667 +#define DOMAIN_USERCLIENT 0
1668 +#define DOMAIN_UDEREF 1
1669 +#define DOMAIN_VECTORS DOMAIN_KERNEL
1670 +#else
1671 +#define DOMAIN_USERCLIENT 1
1672 +#define DOMAIN_VECTORS DOMAIN_USER
1673 +#endif
1674 +#define DOMAIN_KERNELCLIENT 1
1675 +
1676 #endif
1677
1678 #define domain_val(dom,type) ((type) << (2*(dom)))
1679
1680 #ifndef __ASSEMBLY__
1681
1682 -#ifdef CONFIG_CPU_USE_DOMAINS
1683 +#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
1684 static inline void set_domain(unsigned val)
1685 {
1686 asm volatile(
1687 @@ -68,15 +87,7 @@ static inline void set_domain(unsigned val)
1688 isb();
1689 }
1690
1691 -#define modify_domain(dom,type) \
1692 - do { \
1693 - struct thread_info *thread = current_thread_info(); \
1694 - unsigned int domain = thread->cpu_domain; \
1695 - domain &= ~domain_val(dom, DOMAIN_MANAGER); \
1696 - thread->cpu_domain = domain | domain_val(dom, type); \
1697 - set_domain(thread->cpu_domain); \
1698 - } while (0)
1699 -
1700 +extern void modify_domain(unsigned int dom, unsigned int type);
1701 #else
1702 static inline void set_domain(unsigned val) { }
1703 static inline void modify_domain(unsigned dom, unsigned type) { }
1704 diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
1705 index f4b46d3..abc9b2b 100644
1706 --- a/arch/arm/include/asm/elf.h
1707 +++ b/arch/arm/include/asm/elf.h
1708 @@ -114,7 +114,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1709 the loader. We need to make sure that it is out of the way of the program
1710 that it will "exec", and that there is sufficient room for the brk. */
1711
1712 -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
1713 +#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
1714 +
1715 +#ifdef CONFIG_PAX_ASLR
1716 +#define PAX_ELF_ET_DYN_BASE 0x00008000UL
1717 +
1718 +#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1719 +#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1720 +#endif
1721
1722 /* When the program starts, a1 contains a pointer to a function to be
1723 registered with atexit, as per the SVR4 ABI. A value of 0 means we
1724 @@ -124,10 +131,6 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1725 extern void elf_set_personality(const struct elf32_hdr *);
1726 #define SET_PERSONALITY(ex) elf_set_personality(&(ex))
1727
1728 -struct mm_struct;
1729 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
1730 -#define arch_randomize_brk arch_randomize_brk
1731 -
1732 #ifdef CONFIG_MMU
1733 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
1734 struct linux_binprm;
1735 diff --git a/arch/arm/include/asm/fncpy.h b/arch/arm/include/asm/fncpy.h
1736 index de53547..52b9a28 100644
1737 --- a/arch/arm/include/asm/fncpy.h
1738 +++ b/arch/arm/include/asm/fncpy.h
1739 @@ -81,7 +81,9 @@
1740 BUG_ON((uintptr_t)(dest_buf) & (FNCPY_ALIGN - 1) || \
1741 (__funcp_address & ~(uintptr_t)1 & (FNCPY_ALIGN - 1))); \
1742 \
1743 + pax_open_kernel(); \
1744 memcpy(dest_buf, (void const *)(__funcp_address & ~1), size); \
1745 + pax_close_kernel(); \
1746 flush_icache_range((unsigned long)(dest_buf), \
1747 (unsigned long)(dest_buf) + (size)); \
1748 \
1749 diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
1750 index 53e69da..3fdc896 100644
1751 --- a/arch/arm/include/asm/futex.h
1752 +++ b/arch/arm/include/asm/futex.h
1753 @@ -46,6 +46,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1754 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
1755 return -EFAULT;
1756
1757 + pax_open_userland();
1758 +
1759 smp_mb();
1760 /* Prefetching cannot fault */
1761 prefetchw(uaddr);
1762 @@ -63,6 +65,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1763 : "cc", "memory");
1764 smp_mb();
1765
1766 + pax_close_userland();
1767 +
1768 *uval = val;
1769 return ret;
1770 }
1771 @@ -93,6 +97,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1772 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
1773 return -EFAULT;
1774
1775 + pax_open_userland();
1776 +
1777 __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
1778 "1: " TUSER(ldr) " %1, [%4]\n"
1779 " teq %1, %2\n"
1780 @@ -103,6 +109,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1781 : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
1782 : "cc", "memory");
1783
1784 + pax_close_userland();
1785 +
1786 *uval = val;
1787 return ret;
1788 }
1789 @@ -125,6 +133,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
1790 return -EFAULT;
1791
1792 pagefault_disable(); /* implies preempt_disable() */
1793 + pax_open_userland();
1794
1795 switch (op) {
1796 case FUTEX_OP_SET:
1797 @@ -146,6 +155,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
1798 ret = -ENOSYS;
1799 }
1800
1801 + pax_close_userland();
1802 pagefault_enable(); /* subsumes preempt_enable() */
1803
1804 if (!ret) {
1805 diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
1806 index 83eb2f7..ed77159 100644
1807 --- a/arch/arm/include/asm/kmap_types.h
1808 +++ b/arch/arm/include/asm/kmap_types.h
1809 @@ -4,6 +4,6 @@
1810 /*
1811 * This is the "bare minimum". AIO seems to require this.
1812 */
1813 -#define KM_TYPE_NR 16
1814 +#define KM_TYPE_NR 17
1815
1816 #endif
1817 diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h
1818 index 9e614a1..3302cca 100644
1819 --- a/arch/arm/include/asm/mach/dma.h
1820 +++ b/arch/arm/include/asm/mach/dma.h
1821 @@ -22,7 +22,7 @@ struct dma_ops {
1822 int (*residue)(unsigned int, dma_t *); /* optional */
1823 int (*setspeed)(unsigned int, dma_t *, int); /* optional */
1824 const char *type;
1825 -};
1826 +} __do_const;
1827
1828 struct dma_struct {
1829 void *addr; /* single DMA address */
1830 diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
1831 index f98c7f3..e5c626d 100644
1832 --- a/arch/arm/include/asm/mach/map.h
1833 +++ b/arch/arm/include/asm/mach/map.h
1834 @@ -23,17 +23,19 @@ struct map_desc {
1835
1836 /* types 0-3 are defined in asm/io.h */
1837 enum {
1838 - MT_UNCACHED = 4,
1839 - MT_CACHECLEAN,
1840 - MT_MINICLEAN,
1841 + MT_UNCACHED_RW = 4,
1842 + MT_CACHECLEAN_RO,
1843 + MT_MINICLEAN_RO,
1844 MT_LOW_VECTORS,
1845 MT_HIGH_VECTORS,
1846 - MT_MEMORY_RWX,
1847 + __MT_MEMORY_RWX,
1848 MT_MEMORY_RW,
1849 - MT_ROM,
1850 - MT_MEMORY_RWX_NONCACHED,
1851 + MT_MEMORY_RX,
1852 + MT_ROM_RX,
1853 + MT_MEMORY_RW_NONCACHED,
1854 + MT_MEMORY_RX_NONCACHED,
1855 MT_MEMORY_RW_DTCM,
1856 - MT_MEMORY_RWX_ITCM,
1857 + MT_MEMORY_RX_ITCM,
1858 MT_MEMORY_RW_SO,
1859 MT_MEMORY_DMA_READY,
1860 };
1861 diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
1862 index f94784f..9a09a4a 100644
1863 --- a/arch/arm/include/asm/outercache.h
1864 +++ b/arch/arm/include/asm/outercache.h
1865 @@ -35,7 +35,7 @@ struct outer_cache_fns {
1866 #endif
1867 void (*set_debug)(unsigned long);
1868 void (*resume)(void);
1869 -};
1870 +} __no_const;
1871
1872 extern struct outer_cache_fns outer_cache;
1873
1874 diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
1875 index 4355f0e..cd9168e 100644
1876 --- a/arch/arm/include/asm/page.h
1877 +++ b/arch/arm/include/asm/page.h
1878 @@ -23,6 +23,7 @@
1879
1880 #else
1881
1882 +#include <linux/compiler.h>
1883 #include <asm/glue.h>
1884
1885 /*
1886 @@ -114,7 +115,7 @@ struct cpu_user_fns {
1887 void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
1888 void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
1889 unsigned long vaddr, struct vm_area_struct *vma);
1890 -};
1891 +} __no_const;
1892
1893 #ifdef MULTI_USER
1894 extern struct cpu_user_fns cpu_user;
1895 diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
1896 index 78a7793..e3dc06c 100644
1897 --- a/arch/arm/include/asm/pgalloc.h
1898 +++ b/arch/arm/include/asm/pgalloc.h
1899 @@ -17,6 +17,7 @@
1900 #include <asm/processor.h>
1901 #include <asm/cacheflush.h>
1902 #include <asm/tlbflush.h>
1903 +#include <asm/system_info.h>
1904
1905 #define check_pgt_cache() do { } while (0)
1906
1907 @@ -43,6 +44,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1908 set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
1909 }
1910
1911 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1912 +{
1913 + pud_populate(mm, pud, pmd);
1914 +}
1915 +
1916 #else /* !CONFIG_ARM_LPAE */
1917
1918 /*
1919 @@ -51,6 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1920 #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); })
1921 #define pmd_free(mm, pmd) do { } while (0)
1922 #define pud_populate(mm,pmd,pte) BUG()
1923 +#define pud_populate_kernel(mm,pmd,pte) BUG()
1924
1925 #endif /* CONFIG_ARM_LPAE */
1926
1927 @@ -128,6 +135,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
1928 __free_page(pte);
1929 }
1930
1931 +static inline void __section_update(pmd_t *pmdp, unsigned long addr, pmdval_t prot)
1932 +{
1933 +#ifdef CONFIG_ARM_LPAE
1934 + pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
1935 +#else
1936 + if (addr & SECTION_SIZE)
1937 + pmdp[1] = __pmd(pmd_val(pmdp[1]) | prot);
1938 + else
1939 + pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
1940 +#endif
1941 + flush_pmd_entry(pmdp);
1942 +}
1943 +
1944 static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
1945 pmdval_t prot)
1946 {
1947 @@ -157,7 +177,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
1948 static inline void
1949 pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
1950 {
1951 - __pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE);
1952 + __pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE | __supported_pmd_mask);
1953 }
1954 #define pmd_pgtable(pmd) pmd_page(pmd)
1955
1956 diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
1957 index 5cfba15..f415e1a 100644
1958 --- a/arch/arm/include/asm/pgtable-2level-hwdef.h
1959 +++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
1960 @@ -20,12 +20,15 @@
1961 #define PMD_TYPE_FAULT (_AT(pmdval_t, 0) << 0)
1962 #define PMD_TYPE_TABLE (_AT(pmdval_t, 1) << 0)
1963 #define PMD_TYPE_SECT (_AT(pmdval_t, 2) << 0)
1964 +#define PMD_PXNTABLE (_AT(pmdval_t, 1) << 2) /* v7 */
1965 #define PMD_BIT4 (_AT(pmdval_t, 1) << 4)
1966 #define PMD_DOMAIN(x) (_AT(pmdval_t, (x)) << 5)
1967 #define PMD_PROTECTION (_AT(pmdval_t, 1) << 9) /* v5 */
1968 +
1969 /*
1970 * - section
1971 */
1972 +#define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */
1973 #define PMD_SECT_BUFFERABLE (_AT(pmdval_t, 1) << 2)
1974 #define PMD_SECT_CACHEABLE (_AT(pmdval_t, 1) << 3)
1975 #define PMD_SECT_XN (_AT(pmdval_t, 1) << 4) /* v6 */
1976 @@ -37,6 +40,7 @@
1977 #define PMD_SECT_nG (_AT(pmdval_t, 1) << 17) /* v6 */
1978 #define PMD_SECT_SUPER (_AT(pmdval_t, 1) << 18) /* v6 */
1979 #define PMD_SECT_AF (_AT(pmdval_t, 0))
1980 +#define PMD_SECT_RDONLY (_AT(pmdval_t, 0))
1981
1982 #define PMD_SECT_UNCACHED (_AT(pmdval_t, 0))
1983 #define PMD_SECT_BUFFERED (PMD_SECT_BUFFERABLE)
1984 @@ -66,6 +70,7 @@
1985 * - extended small page/tiny page
1986 */
1987 #define PTE_EXT_XN (_AT(pteval_t, 1) << 0) /* v6 */
1988 +#define PTE_EXT_PXN (_AT(pteval_t, 1) << 2) /* v7 */
1989 #define PTE_EXT_AP_MASK (_AT(pteval_t, 3) << 4)
1990 #define PTE_EXT_AP0 (_AT(pteval_t, 1) << 4)
1991 #define PTE_EXT_AP1 (_AT(pteval_t, 2) << 4)
1992 diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
1993 index 219ac88..73ec32a 100644
1994 --- a/arch/arm/include/asm/pgtable-2level.h
1995 +++ b/arch/arm/include/asm/pgtable-2level.h
1996 @@ -126,6 +126,9 @@
1997 #define L_PTE_SHARED (_AT(pteval_t, 1) << 10) /* shared(v6), coherent(xsc3) */
1998 #define L_PTE_NONE (_AT(pteval_t, 1) << 11)
1999
2000 +/* Two-level page tables only have PXN in the PGD, not in the PTE. */
2001 +#define L_PTE_PXN (_AT(pteval_t, 0))
2002 +
2003 /*
2004 * These are the memory types, defined to be compatible with
2005 * pre-ARMv6 CPUs cacheable and bufferable bits: XXCB
2006 diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h
2007 index 626989f..9d67a33 100644
2008 --- a/arch/arm/include/asm/pgtable-3level-hwdef.h
2009 +++ b/arch/arm/include/asm/pgtable-3level-hwdef.h
2010 @@ -75,6 +75,7 @@
2011 #define PTE_EXT_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */
2012 #define PTE_EXT_AF (_AT(pteval_t, 1) << 10) /* Access Flag */
2013 #define PTE_EXT_NG (_AT(pteval_t, 1) << 11) /* nG */
2014 +#define PTE_EXT_PXN (_AT(pteval_t, 1) << 53) /* PXN */
2015 #define PTE_EXT_XN (_AT(pteval_t, 1) << 54) /* XN */
2016
2017 /*
2018 diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
2019 index 85c60ad..b0bbd7e 100644
2020 --- a/arch/arm/include/asm/pgtable-3level.h
2021 +++ b/arch/arm/include/asm/pgtable-3level.h
2022 @@ -82,6 +82,7 @@
2023 #define L_PTE_RDONLY (_AT(pteval_t, 1) << 7) /* AP[2] */
2024 #define L_PTE_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */
2025 #define L_PTE_YOUNG (_AT(pteval_t, 1) << 10) /* AF */
2026 +#define L_PTE_PXN (_AT(pteval_t, 1) << 53) /* PXN */
2027 #define L_PTE_XN (_AT(pteval_t, 1) << 54) /* XN */
2028 #define L_PTE_DIRTY (_AT(pteval_t, 1) << 55) /* unused */
2029 #define L_PTE_SPECIAL (_AT(pteval_t, 1) << 56) /* unused */
2030 @@ -95,6 +96,7 @@
2031 /*
2032 * To be used in assembly code with the upper page attributes.
2033 */
2034 +#define L_PTE_PXN_HIGH (1 << (53 - 32))
2035 #define L_PTE_XN_HIGH (1 << (54 - 32))
2036 #define L_PTE_DIRTY_HIGH (1 << (55 - 32))
2037
2038 diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
2039 index 5478e5d..f5b5cb3 100644
2040 --- a/arch/arm/include/asm/pgtable.h
2041 +++ b/arch/arm/include/asm/pgtable.h
2042 @@ -33,6 +33,9 @@
2043 #include <asm/pgtable-2level.h>
2044 #endif
2045
2046 +#define ktla_ktva(addr) (addr)
2047 +#define ktva_ktla(addr) (addr)
2048 +
2049 /*
2050 * Just any arbitrary offset to the start of the vmalloc VM area: the
2051 * current 8MB value just means that there will be a 8MB "hole" after the
2052 @@ -48,6 +51,9 @@
2053 #define LIBRARY_TEXT_START 0x0c000000
2054
2055 #ifndef __ASSEMBLY__
2056 +extern pteval_t __supported_pte_mask;
2057 +extern pmdval_t __supported_pmd_mask;
2058 +
2059 extern void __pte_error(const char *file, int line, pte_t);
2060 extern void __pmd_error(const char *file, int line, pmd_t);
2061 extern void __pgd_error(const char *file, int line, pgd_t);
2062 @@ -56,6 +62,48 @@ extern void __pgd_error(const char *file, int line, pgd_t);
2063 #define pmd_ERROR(pmd) __pmd_error(__FILE__, __LINE__, pmd)
2064 #define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd)
2065
2066 +#define __HAVE_ARCH_PAX_OPEN_KERNEL
2067 +#define __HAVE_ARCH_PAX_CLOSE_KERNEL
2068 +
2069 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2070 +#include <asm/domain.h>
2071 +#include <linux/thread_info.h>
2072 +#include <linux/preempt.h>
2073 +
2074 +static inline int test_domain(int domain, int domaintype)
2075 +{
2076 + return ((current_thread_info()->cpu_domain) & domain_val(domain, 3)) == domain_val(domain, domaintype);
2077 +}
2078 +#endif
2079 +
2080 +#ifdef CONFIG_PAX_KERNEXEC
2081 +static inline unsigned long pax_open_kernel(void) {
2082 +#ifdef CONFIG_ARM_LPAE
2083 + /* TODO */
2084 +#else
2085 + preempt_disable();
2086 + BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC));
2087 + modify_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC);
2088 +#endif
2089 + return 0;
2090 +}
2091 +
2092 +static inline unsigned long pax_close_kernel(void) {
2093 +#ifdef CONFIG_ARM_LPAE
2094 + /* TODO */
2095 +#else
2096 + BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_MANAGER));
2097 + /* DOMAIN_MANAGER = "client" under KERNEXEC */
2098 + modify_domain(DOMAIN_KERNEL, DOMAIN_MANAGER);
2099 + preempt_enable_no_resched();
2100 +#endif
2101 + return 0;
2102 +}
2103 +#else
2104 +static inline unsigned long pax_open_kernel(void) { return 0; }
2105 +static inline unsigned long pax_close_kernel(void) { return 0; }
2106 +#endif
2107 +
2108 /*
2109 * This is the lowest virtual address we can permit any user space
2110 * mapping to be mapped at. This is particularly important for
2111 @@ -75,8 +123,8 @@ extern void __pgd_error(const char *file, int line, pgd_t);
2112 /*
2113 * The pgprot_* and protection_map entries will be fixed up in runtime
2114 * to include the cachable and bufferable bits based on memory policy,
2115 - * as well as any architecture dependent bits like global/ASID and SMP
2116 - * shared mapping bits.
2117 + * as well as any architecture dependent bits like global/ASID, PXN,
2118 + * and SMP shared mapping bits.
2119 */
2120 #define _L_PTE_DEFAULT L_PTE_PRESENT | L_PTE_YOUNG
2121
2122 @@ -265,7 +313,7 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
2123 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
2124 {
2125 const pteval_t mask = L_PTE_XN | L_PTE_RDONLY | L_PTE_USER |
2126 - L_PTE_NONE | L_PTE_VALID;
2127 + L_PTE_NONE | L_PTE_VALID | __supported_pte_mask;
2128 pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
2129 return pte;
2130 }
2131 diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
2132 index c4ae171..ea0c0c2 100644
2133 --- a/arch/arm/include/asm/psci.h
2134 +++ b/arch/arm/include/asm/psci.h
2135 @@ -29,7 +29,7 @@ struct psci_operations {
2136 int (*cpu_off)(struct psci_power_state state);
2137 int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
2138 int (*migrate)(unsigned long cpuid);
2139 -};
2140 +} __no_const;
2141
2142 extern struct psci_operations psci_ops;
2143 extern struct smp_operations psci_smp_ops;
2144 diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
2145 index 2ec765c..beb1fe16 100644
2146 --- a/arch/arm/include/asm/smp.h
2147 +++ b/arch/arm/include/asm/smp.h
2148 @@ -113,7 +113,7 @@ struct smp_operations {
2149 int (*cpu_disable)(unsigned int cpu);
2150 #endif
2151 #endif
2152 -};
2153 +} __no_const;
2154
2155 struct of_cpu_method {
2156 const char *method;
2157 diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
2158 index f989d7c..e8aa7f0 100644
2159 --- a/arch/arm/include/asm/thread_info.h
2160 +++ b/arch/arm/include/asm/thread_info.h
2161 @@ -88,9 +88,9 @@ struct thread_info {
2162 .flags = 0, \
2163 .preempt_count = INIT_PREEMPT_COUNT, \
2164 .addr_limit = KERNEL_DS, \
2165 - .cpu_domain = domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
2166 - domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
2167 - domain_val(DOMAIN_IO, DOMAIN_CLIENT), \
2168 + .cpu_domain = domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) | \
2169 + domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT) | \
2170 + domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT), \
2171 .restart_block = { \
2172 .fn = do_no_restart_syscall, \
2173 }, \
2174 @@ -158,7 +158,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
2175 #define TIF_SYSCALL_AUDIT 9
2176 #define TIF_SYSCALL_TRACEPOINT 10
2177 #define TIF_SECCOMP 11 /* seccomp syscall filtering active */
2178 -#define TIF_NOHZ 12 /* in adaptive nohz mode */
2179 +/* within 8 bits of TIF_SYSCALL_TRACE
2180 + * to meet flexible second operand requirements
2181 + */
2182 +#define TIF_GRSEC_SETXID 12
2183 +#define TIF_NOHZ 13 /* in adaptive nohz mode */
2184 #define TIF_USING_IWMMXT 17
2185 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
2186 #define TIF_RESTORE_SIGMASK 20
2187 @@ -172,10 +176,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
2188 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
2189 #define _TIF_SECCOMP (1 << TIF_SECCOMP)
2190 #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
2191 +#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
2192
2193 /* Checks for any syscall work in entry-common.S */
2194 #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
2195 - _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
2196 + _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
2197
2198 /*
2199 * Change these and you break ASM code in entry-common.S
2200 diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
2201 index 75d9579..b5b40e4 100644
2202 --- a/arch/arm/include/asm/uaccess.h
2203 +++ b/arch/arm/include/asm/uaccess.h
2204 @@ -18,6 +18,7 @@
2205 #include <asm/domain.h>
2206 #include <asm/unified.h>
2207 #include <asm/compiler.h>
2208 +#include <asm/pgtable.h>
2209
2210 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
2211 #include <asm-generic/uaccess-unaligned.h>
2212 @@ -70,11 +71,38 @@ extern int __put_user_bad(void);
2213 static inline void set_fs(mm_segment_t fs)
2214 {
2215 current_thread_info()->addr_limit = fs;
2216 - modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
2217 + modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_KERNELCLIENT : DOMAIN_MANAGER);
2218 }
2219
2220 #define segment_eq(a,b) ((a) == (b))
2221
2222 +#define __HAVE_ARCH_PAX_OPEN_USERLAND
2223 +#define __HAVE_ARCH_PAX_CLOSE_USERLAND
2224 +
2225 +static inline void pax_open_userland(void)
2226 +{
2227 +
2228 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2229 + if (segment_eq(get_fs(), USER_DS)) {
2230 + BUG_ON(test_domain(DOMAIN_USER, DOMAIN_UDEREF));
2231 + modify_domain(DOMAIN_USER, DOMAIN_UDEREF);
2232 + }
2233 +#endif
2234 +
2235 +}
2236 +
2237 +static inline void pax_close_userland(void)
2238 +{
2239 +
2240 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2241 + if (segment_eq(get_fs(), USER_DS)) {
2242 + BUG_ON(test_domain(DOMAIN_USER, DOMAIN_NOACCESS));
2243 + modify_domain(DOMAIN_USER, DOMAIN_NOACCESS);
2244 + }
2245 +#endif
2246 +
2247 +}
2248 +
2249 #define __addr_ok(addr) ({ \
2250 unsigned long flag; \
2251 __asm__("cmp %2, %0; movlo %0, #0" \
2252 @@ -150,8 +178,12 @@ extern int __get_user_4(void *);
2253
2254 #define get_user(x,p) \
2255 ({ \
2256 + int __e; \
2257 might_fault(); \
2258 - __get_user_check(x,p); \
2259 + pax_open_userland(); \
2260 + __e = __get_user_check(x,p); \
2261 + pax_close_userland(); \
2262 + __e; \
2263 })
2264
2265 extern int __put_user_1(void *, unsigned int);
2266 @@ -196,8 +228,12 @@ extern int __put_user_8(void *, unsigned long long);
2267
2268 #define put_user(x,p) \
2269 ({ \
2270 + int __e; \
2271 might_fault(); \
2272 - __put_user_check(x,p); \
2273 + pax_open_userland(); \
2274 + __e = __put_user_check(x,p); \
2275 + pax_close_userland(); \
2276 + __e; \
2277 })
2278
2279 #else /* CONFIG_MMU */
2280 @@ -221,6 +257,7 @@ static inline void set_fs(mm_segment_t fs)
2281
2282 #endif /* CONFIG_MMU */
2283
2284 +#define access_ok_noprefault(type,addr,size) access_ok((type),(addr),(size))
2285 #define access_ok(type,addr,size) (__range_ok(addr,size) == 0)
2286
2287 #define user_addr_max() \
2288 @@ -238,13 +275,17 @@ static inline void set_fs(mm_segment_t fs)
2289 #define __get_user(x,ptr) \
2290 ({ \
2291 long __gu_err = 0; \
2292 + pax_open_userland(); \
2293 __get_user_err((x),(ptr),__gu_err); \
2294 + pax_close_userland(); \
2295 __gu_err; \
2296 })
2297
2298 #define __get_user_error(x,ptr,err) \
2299 ({ \
2300 + pax_open_userland(); \
2301 __get_user_err((x),(ptr),err); \
2302 + pax_close_userland(); \
2303 (void) 0; \
2304 })
2305
2306 @@ -320,13 +361,17 @@ do { \
2307 #define __put_user(x,ptr) \
2308 ({ \
2309 long __pu_err = 0; \
2310 + pax_open_userland(); \
2311 __put_user_err((x),(ptr),__pu_err); \
2312 + pax_close_userland(); \
2313 __pu_err; \
2314 })
2315
2316 #define __put_user_error(x,ptr,err) \
2317 ({ \
2318 + pax_open_userland(); \
2319 __put_user_err((x),(ptr),err); \
2320 + pax_close_userland(); \
2321 (void) 0; \
2322 })
2323
2324 @@ -426,11 +471,44 @@ do { \
2325
2326
2327 #ifdef CONFIG_MMU
2328 -extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
2329 -extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
2330 +extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n);
2331 +extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n);
2332 +
2333 +static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
2334 +{
2335 + unsigned long ret;
2336 +
2337 + check_object_size(to, n, false);
2338 + pax_open_userland();
2339 + ret = ___copy_from_user(to, from, n);
2340 + pax_close_userland();
2341 + return ret;
2342 +}
2343 +
2344 +static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
2345 +{
2346 + unsigned long ret;
2347 +
2348 + check_object_size(from, n, true);
2349 + pax_open_userland();
2350 + ret = ___copy_to_user(to, from, n);
2351 + pax_close_userland();
2352 + return ret;
2353 +}
2354 +
2355 extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n);
2356 -extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
2357 +extern unsigned long __must_check ___clear_user(void __user *addr, unsigned long n);
2358 extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
2359 +
2360 +static inline unsigned long __must_check __clear_user(void __user *addr, unsigned long n)
2361 +{
2362 + unsigned long ret;
2363 + pax_open_userland();
2364 + ret = ___clear_user(addr, n);
2365 + pax_close_userland();
2366 + return ret;
2367 +}
2368 +
2369 #else
2370 #define __copy_from_user(to,from,n) (memcpy(to, (void __force *)from, n), 0)
2371 #define __copy_to_user(to,from,n) (memcpy((void __force *)to, from, n), 0)
2372 @@ -439,6 +517,9 @@ extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned l
2373
2374 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
2375 {
2376 + if ((long)n < 0)
2377 + return n;
2378 +
2379 if (access_ok(VERIFY_READ, from, n))
2380 n = __copy_from_user(to, from, n);
2381 else /* security hole - plug it */
2382 @@ -448,6 +529,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
2383
2384 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
2385 {
2386 + if ((long)n < 0)
2387 + return n;
2388 +
2389 if (access_ok(VERIFY_WRITE, to, n))
2390 n = __copy_to_user(to, from, n);
2391 return n;
2392 diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
2393 index 5af0ed1..cea83883 100644
2394 --- a/arch/arm/include/uapi/asm/ptrace.h
2395 +++ b/arch/arm/include/uapi/asm/ptrace.h
2396 @@ -92,7 +92,7 @@
2397 * ARMv7 groups of PSR bits
2398 */
2399 #define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */
2400 -#define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
2401 +#define PSR_ISET_MASK 0x01000020 /* ISA state (J, T) mask */
2402 #define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
2403 #define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
2404
2405 diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
2406 index f7b450f..f5364c5 100644
2407 --- a/arch/arm/kernel/armksyms.c
2408 +++ b/arch/arm/kernel/armksyms.c
2409 @@ -55,7 +55,7 @@ EXPORT_SYMBOL(arm_delay_ops);
2410
2411 /* networking */
2412 EXPORT_SYMBOL(csum_partial);
2413 -EXPORT_SYMBOL(csum_partial_copy_from_user);
2414 +EXPORT_SYMBOL(__csum_partial_copy_from_user);
2415 EXPORT_SYMBOL(csum_partial_copy_nocheck);
2416 EXPORT_SYMBOL(__csum_ipv6_magic);
2417
2418 @@ -91,9 +91,9 @@ EXPORT_SYMBOL(__memzero);
2419 #ifdef CONFIG_MMU
2420 EXPORT_SYMBOL(copy_page);
2421
2422 -EXPORT_SYMBOL(__copy_from_user);
2423 -EXPORT_SYMBOL(__copy_to_user);
2424 -EXPORT_SYMBOL(__clear_user);
2425 +EXPORT_SYMBOL(___copy_from_user);
2426 +EXPORT_SYMBOL(___copy_to_user);
2427 +EXPORT_SYMBOL(___clear_user);
2428
2429 EXPORT_SYMBOL(__get_user_1);
2430 EXPORT_SYMBOL(__get_user_2);
2431 diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
2432 index 1879e8d..b2207fc 100644
2433 --- a/arch/arm/kernel/entry-armv.S
2434 +++ b/arch/arm/kernel/entry-armv.S
2435 @@ -47,6 +47,87 @@
2436 9997:
2437 .endm
2438
2439 + .macro pax_enter_kernel
2440 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2441 + @ make aligned space for saved DACR
2442 + sub sp, sp, #8
2443 + @ save regs
2444 + stmdb sp!, {r1, r2}
2445 + @ read DACR from cpu_domain into r1
2446 + mov r2, sp
2447 + @ assume 8K pages, since we have to split the immediate in two
2448 + bic r2, r2, #(0x1fc0)
2449 + bic r2, r2, #(0x3f)
2450 + ldr r1, [r2, #TI_CPU_DOMAIN]
2451 + @ store old DACR on stack
2452 + str r1, [sp, #8]
2453 +#ifdef CONFIG_PAX_KERNEXEC
2454 + @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2455 + bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2456 + orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2457 +#endif
2458 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2459 + @ set current DOMAIN_USER to DOMAIN_NOACCESS
2460 + bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2461 +#endif
2462 + @ write r1 to current_thread_info()->cpu_domain
2463 + str r1, [r2, #TI_CPU_DOMAIN]
2464 + @ write r1 to DACR
2465 + mcr p15, 0, r1, c3, c0, 0
2466 + @ instruction sync
2467 + instr_sync
2468 + @ restore regs
2469 + ldmia sp!, {r1, r2}
2470 +#endif
2471 + .endm
2472 +
2473 + .macro pax_open_userland
2474 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2475 + @ save regs
2476 + stmdb sp!, {r0, r1}
2477 + @ read DACR from cpu_domain into r1
2478 + mov r0, sp
2479 + @ assume 8K pages, since we have to split the immediate in two
2480 + bic r0, r0, #(0x1fc0)
2481 + bic r0, r0, #(0x3f)
2482 + ldr r1, [r0, #TI_CPU_DOMAIN]
2483 + @ set current DOMAIN_USER to DOMAIN_CLIENT
2484 + bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2485 + orr r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
2486 + @ write r1 to current_thread_info()->cpu_domain
2487 + str r1, [r0, #TI_CPU_DOMAIN]
2488 + @ write r1 to DACR
2489 + mcr p15, 0, r1, c3, c0, 0
2490 + @ instruction sync
2491 + instr_sync
2492 + @ restore regs
2493 + ldmia sp!, {r0, r1}
2494 +#endif
2495 + .endm
2496 +
2497 + .macro pax_close_userland
2498 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2499 + @ save regs
2500 + stmdb sp!, {r0, r1}
2501 + @ read DACR from cpu_domain into r1
2502 + mov r0, sp
2503 + @ assume 8K pages, since we have to split the immediate in two
2504 + bic r0, r0, #(0x1fc0)
2505 + bic r0, r0, #(0x3f)
2506 + ldr r1, [r0, #TI_CPU_DOMAIN]
2507 + @ set current DOMAIN_USER to DOMAIN_NOACCESS
2508 + bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2509 + @ write r1 to current_thread_info()->cpu_domain
2510 + str r1, [r0, #TI_CPU_DOMAIN]
2511 + @ write r1 to DACR
2512 + mcr p15, 0, r1, c3, c0, 0
2513 + @ instruction sync
2514 + instr_sync
2515 + @ restore regs
2516 + ldmia sp!, {r0, r1}
2517 +#endif
2518 + .endm
2519 +
2520 .macro pabt_helper
2521 @ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5
2522 #ifdef MULTI_PABORT
2523 @@ -89,11 +170,15 @@
2524 * Invalid mode handlers
2525 */
2526 .macro inv_entry, reason
2527 +
2528 + pax_enter_kernel
2529 +
2530 sub sp, sp, #S_FRAME_SIZE
2531 ARM( stmib sp, {r1 - lr} )
2532 THUMB( stmia sp, {r0 - r12} )
2533 THUMB( str sp, [sp, #S_SP] )
2534 THUMB( str lr, [sp, #S_LR] )
2535 +
2536 mov r1, #\reason
2537 .endm
2538
2539 @@ -149,7 +234,11 @@ ENDPROC(__und_invalid)
2540 .macro svc_entry, stack_hole=0
2541 UNWIND(.fnstart )
2542 UNWIND(.save {r0 - pc} )
2543 +
2544 + pax_enter_kernel
2545 +
2546 sub sp, sp, #(S_FRAME_SIZE + \stack_hole - 4)
2547 +
2548 #ifdef CONFIG_THUMB2_KERNEL
2549 SPFIX( str r0, [sp] ) @ temporarily saved
2550 SPFIX( mov r0, sp )
2551 @@ -164,7 +253,12 @@ ENDPROC(__und_invalid)
2552 ldmia r0, {r3 - r5}
2553 add r7, sp, #S_SP - 4 @ here for interlock avoidance
2554 mov r6, #-1 @ "" "" "" ""
2555 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2556 + @ offset sp by 8 as done in pax_enter_kernel
2557 + add r2, sp, #(S_FRAME_SIZE + \stack_hole + 4)
2558 +#else
2559 add r2, sp, #(S_FRAME_SIZE + \stack_hole - 4)
2560 +#endif
2561 SPFIX( addeq r2, r2, #4 )
2562 str r3, [sp, #-4]! @ save the "real" r0 copied
2563 @ from the exception stack
2564 @@ -317,6 +411,9 @@ ENDPROC(__pabt_svc)
2565 .macro usr_entry
2566 UNWIND(.fnstart )
2567 UNWIND(.cantunwind ) @ don't unwind the user space
2568 +
2569 + pax_enter_kernel_user
2570 +
2571 sub sp, sp, #S_FRAME_SIZE
2572 ARM( stmib sp, {r1 - r12} )
2573 THUMB( stmia sp, {r0 - r12} )
2574 @@ -416,7 +513,9 @@ __und_usr:
2575 tst r3, #PSR_T_BIT @ Thumb mode?
2576 bne __und_usr_thumb
2577 sub r4, r2, #4 @ ARM instr at LR - 4
2578 + pax_open_userland
2579 1: ldrt r0, [r4]
2580 + pax_close_userland
2581 ARM_BE8(rev r0, r0) @ little endian instruction
2582
2583 @ r0 = 32-bit ARM instruction which caused the exception
2584 @@ -450,11 +549,15 @@ __und_usr_thumb:
2585 */
2586 .arch armv6t2
2587 #endif
2588 + pax_open_userland
2589 2: ldrht r5, [r4]
2590 + pax_close_userland
2591 ARM_BE8(rev16 r5, r5) @ little endian instruction
2592 cmp r5, #0xe800 @ 32bit instruction if xx != 0
2593 blo __und_usr_fault_16 @ 16bit undefined instruction
2594 + pax_open_userland
2595 3: ldrht r0, [r2]
2596 + pax_close_userland
2597 ARM_BE8(rev16 r0, r0) @ little endian instruction
2598 add r2, r2, #2 @ r2 is PC + 2, make it PC + 4
2599 str r2, [sp, #S_PC] @ it's a 2x16bit instr, update
2600 @@ -484,7 +587,8 @@ ENDPROC(__und_usr)
2601 */
2602 .pushsection .fixup, "ax"
2603 .align 2
2604 -4: mov pc, r9
2605 +4: pax_close_userland
2606 + mov pc, r9
2607 .popsection
2608 .pushsection __ex_table,"a"
2609 .long 1b, 4b
2610 @@ -694,7 +798,7 @@ ENTRY(__switch_to)
2611 THUMB( str lr, [ip], #4 )
2612 ldr r4, [r2, #TI_TP_VALUE]
2613 ldr r5, [r2, #TI_TP_VALUE + 4]
2614 -#ifdef CONFIG_CPU_USE_DOMAINS
2615 +#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2616 ldr r6, [r2, #TI_CPU_DOMAIN]
2617 #endif
2618 switch_tls r1, r4, r5, r3, r7
2619 @@ -703,7 +807,7 @@ ENTRY(__switch_to)
2620 ldr r8, =__stack_chk_guard
2621 ldr r7, [r7, #TSK_STACK_CANARY]
2622 #endif
2623 -#ifdef CONFIG_CPU_USE_DOMAINS
2624 +#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2625 mcr p15, 0, r6, c3, c0, 0 @ Set domain register
2626 #endif
2627 mov r5, r0
2628 diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
2629 index a2dcafd..1048b5a 100644
2630 --- a/arch/arm/kernel/entry-common.S
2631 +++ b/arch/arm/kernel/entry-common.S
2632 @@ -10,18 +10,46 @@
2633
2634 #include <asm/unistd.h>
2635 #include <asm/ftrace.h>
2636 +#include <asm/domain.h>
2637 #include <asm/unwind.h>
2638
2639 +#include "entry-header.S"
2640 +
2641 #ifdef CONFIG_NEED_RET_TO_USER
2642 #include <mach/entry-macro.S>
2643 #else
2644 .macro arch_ret_to_user, tmp1, tmp2
2645 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2646 + @ save regs
2647 + stmdb sp!, {r1, r2}
2648 + @ read DACR from cpu_domain into r1
2649 + mov r2, sp
2650 + @ assume 8K pages, since we have to split the immediate in two
2651 + bic r2, r2, #(0x1fc0)
2652 + bic r2, r2, #(0x3f)
2653 + ldr r1, [r2, #TI_CPU_DOMAIN]
2654 +#ifdef CONFIG_PAX_KERNEXEC
2655 + @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2656 + bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2657 + orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2658 +#endif
2659 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2660 + @ set current DOMAIN_USER to DOMAIN_UDEREF
2661 + bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2662 + orr r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
2663 +#endif
2664 + @ write r1 to current_thread_info()->cpu_domain
2665 + str r1, [r2, #TI_CPU_DOMAIN]
2666 + @ write r1 to DACR
2667 + mcr p15, 0, r1, c3, c0, 0
2668 + @ instruction sync
2669 + instr_sync
2670 + @ restore regs
2671 + ldmia sp!, {r1, r2}
2672 +#endif
2673 .endm
2674 #endif
2675
2676 -#include "entry-header.S"
2677 -
2678 -
2679 .align 5
2680 /*
2681 * This is the fast syscall return path. We do as little as
2682 @@ -411,6 +439,12 @@ ENTRY(vector_swi)
2683 USER( ldr scno, [lr, #-4] ) @ get SWI instruction
2684 #endif
2685
2686 + /*
2687 + * do this here to avoid a performance hit of wrapping the code above
2688 + * that directly dereferences userland to parse the SWI instruction
2689 + */
2690 + pax_enter_kernel_user
2691 +
2692 adr tbl, sys_call_table @ load syscall table pointer
2693
2694 #if defined(CONFIG_OABI_COMPAT)
2695 diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
2696 index efb208d..d34bd02 100644
2697 --- a/arch/arm/kernel/entry-header.S
2698 +++ b/arch/arm/kernel/entry-header.S
2699 @@ -188,6 +188,60 @@
2700 msr cpsr_c, \rtemp @ switch back to the SVC mode
2701 .endm
2702
2703 + .macro pax_enter_kernel_user
2704 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2705 + @ save regs
2706 + stmdb sp!, {r0, r1}
2707 + @ read DACR from cpu_domain into r1
2708 + mov r0, sp
2709 + @ assume 8K pages, since we have to split the immediate in two
2710 + bic r0, r0, #(0x1fc0)
2711 + bic r0, r0, #(0x3f)
2712 + ldr r1, [r0, #TI_CPU_DOMAIN]
2713 +#ifdef CONFIG_PAX_MEMORY_UDEREF
2714 + @ set current DOMAIN_USER to DOMAIN_NOACCESS
2715 + bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2716 +#endif
2717 +#ifdef CONFIG_PAX_KERNEXEC
2718 + @ set current DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2719 + bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2720 + orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2721 +#endif
2722 + @ write r1 to current_thread_info()->cpu_domain
2723 + str r1, [r0, #TI_CPU_DOMAIN]
2724 + @ write r1 to DACR
2725 + mcr p15, 0, r1, c3, c0, 0
2726 + @ instruction sync
2727 + instr_sync
2728 + @ restore regs
2729 + ldmia sp!, {r0, r1}
2730 +#endif
2731 + .endm
2732 +
2733 + .macro pax_exit_kernel
2734 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2735 + @ save regs
2736 + stmdb sp!, {r0, r1}
2737 + @ read old DACR from stack into r1
2738 + ldr r1, [sp, #(8 + S_SP)]
2739 + sub r1, r1, #8
2740 + ldr r1, [r1]
2741 +
2742 + @ write r1 to current_thread_info()->cpu_domain
2743 + mov r0, sp
2744 + @ assume 8K pages, since we have to split the immediate in two
2745 + bic r0, r0, #(0x1fc0)
2746 + bic r0, r0, #(0x3f)
2747 + str r1, [r0, #TI_CPU_DOMAIN]
2748 + @ write r1 to DACR
2749 + mcr p15, 0, r1, c3, c0, 0
2750 + @ instruction sync
2751 + instr_sync
2752 + @ restore regs
2753 + ldmia sp!, {r0, r1}
2754 +#endif
2755 + .endm
2756 +
2757 #ifndef CONFIG_THUMB2_KERNEL
2758 .macro svc_exit, rpsr, irq = 0
2759 .if \irq != 0
2760 @@ -207,6 +261,9 @@
2761 blne trace_hardirqs_off
2762 #endif
2763 .endif
2764 +
2765 + pax_exit_kernel
2766 +
2767 msr spsr_cxsf, \rpsr
2768 #if defined(CONFIG_CPU_V6)
2769 ldr r0, [sp]
2770 @@ -265,6 +322,9 @@
2771 blne trace_hardirqs_off
2772 #endif
2773 .endif
2774 +
2775 + pax_exit_kernel
2776 +
2777 ldr lr, [sp, #S_SP] @ top of the stack
2778 ldrd r0, r1, [sp, #S_LR] @ calling lr and pc
2779 clrex @ clear the exclusive monitor
2780 diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
2781 index 918875d..cd5fa27 100644
2782 --- a/arch/arm/kernel/fiq.c
2783 +++ b/arch/arm/kernel/fiq.c
2784 @@ -87,7 +87,10 @@ void set_fiq_handler(void *start, unsigned int length)
2785 void *base = vectors_page;
2786 unsigned offset = FIQ_OFFSET;
2787
2788 + pax_open_kernel();
2789 memcpy(base + offset, start, length);
2790 + pax_close_kernel();
2791 +
2792 if (!cache_is_vipt_nonaliasing())
2793 flush_icache_range((unsigned long)base + offset, offset +
2794 length);
2795 diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
2796 index 591d6e4..8322a26 100644
2797 --- a/arch/arm/kernel/head.S
2798 +++ b/arch/arm/kernel/head.S
2799 @@ -437,7 +437,7 @@ __enable_mmu:
2800 mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
2801 domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
2802 domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
2803 - domain_val(DOMAIN_IO, DOMAIN_CLIENT))
2804 + domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT))
2805 mcr p15, 0, r5, c3, c0, 0 @ load domain access register
2806 mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
2807 #endif
2808 diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
2809 index 45e4781..8eac93d 100644
2810 --- a/arch/arm/kernel/module.c
2811 +++ b/arch/arm/kernel/module.c
2812 @@ -38,12 +38,39 @@
2813 #endif
2814
2815 #ifdef CONFIG_MMU
2816 -void *module_alloc(unsigned long size)
2817 +static inline void *__module_alloc(unsigned long size, pgprot_t prot)
2818 {
2819 + if (!size || PAGE_ALIGN(size) > MODULES_END - MODULES_VADDR)
2820 + return NULL;
2821 return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
2822 - GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
2823 + GFP_KERNEL, prot, NUMA_NO_NODE,
2824 __builtin_return_address(0));
2825 }
2826 +
2827 +void *module_alloc(unsigned long size)
2828 +{
2829 +
2830 +#ifdef CONFIG_PAX_KERNEXEC
2831 + return __module_alloc(size, PAGE_KERNEL);
2832 +#else
2833 + return __module_alloc(size, PAGE_KERNEL_EXEC);
2834 +#endif
2835 +
2836 +}
2837 +
2838 +#ifdef CONFIG_PAX_KERNEXEC
2839 +void module_free_exec(struct module *mod, void *module_region)
2840 +{
2841 + module_free(mod, module_region);
2842 +}
2843 +EXPORT_SYMBOL(module_free_exec);
2844 +
2845 +void *module_alloc_exec(unsigned long size)
2846 +{
2847 + return __module_alloc(size, PAGE_KERNEL_EXEC);
2848 +}
2849 +EXPORT_SYMBOL(module_alloc_exec);
2850 +#endif
2851 #endif
2852
2853 int
2854 diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
2855 index 07314af..c46655c 100644
2856 --- a/arch/arm/kernel/patch.c
2857 +++ b/arch/arm/kernel/patch.c
2858 @@ -18,6 +18,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
2859 bool thumb2 = IS_ENABLED(CONFIG_THUMB2_KERNEL);
2860 int size;
2861
2862 + pax_open_kernel();
2863 if (thumb2 && __opcode_is_thumb16(insn)) {
2864 *(u16 *)addr = __opcode_to_mem_thumb16(insn);
2865 size = sizeof(u16);
2866 @@ -39,6 +40,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
2867 *(u32 *)addr = insn;
2868 size = sizeof(u32);
2869 }
2870 + pax_close_kernel();
2871
2872 flush_icache_range((uintptr_t)(addr),
2873 (uintptr_t)(addr) + size);
2874 diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
2875 index 81ef686..f4130b8 100644
2876 --- a/arch/arm/kernel/process.c
2877 +++ b/arch/arm/kernel/process.c
2878 @@ -212,6 +212,7 @@ void machine_power_off(void)
2879
2880 if (pm_power_off)
2881 pm_power_off();
2882 + BUG();
2883 }
2884
2885 /*
2886 @@ -225,7 +226,7 @@ void machine_power_off(void)
2887 * executing pre-reset code, and using RAM that the primary CPU's code wishes
2888 * to use. Implementing such co-ordination would be essentially impossible.
2889 */
2890 -void machine_restart(char *cmd)
2891 +__noreturn void machine_restart(char *cmd)
2892 {
2893 local_irq_disable();
2894 smp_send_stop();
2895 @@ -248,8 +249,8 @@ void __show_regs(struct pt_regs *regs)
2896
2897 show_regs_print_info(KERN_DEFAULT);
2898
2899 - print_symbol("PC is at %s\n", instruction_pointer(regs));
2900 - print_symbol("LR is at %s\n", regs->ARM_lr);
2901 + printk("PC is at %pA\n", (void *)instruction_pointer(regs));
2902 + printk("LR is at %pA\n", (void *)regs->ARM_lr);
2903 printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
2904 "sp : %08lx ip : %08lx fp : %08lx\n",
2905 regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
2906 @@ -425,12 +426,6 @@ unsigned long get_wchan(struct task_struct *p)
2907 return 0;
2908 }
2909
2910 -unsigned long arch_randomize_brk(struct mm_struct *mm)
2911 -{
2912 - unsigned long range_end = mm->brk + 0x02000000;
2913 - return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
2914 -}
2915 -
2916 #ifdef CONFIG_MMU
2917 #ifdef CONFIG_KUSER_HELPERS
2918 /*
2919 @@ -446,7 +441,7 @@ static struct vm_area_struct gate_vma = {
2920
2921 static int __init gate_vma_init(void)
2922 {
2923 - gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
2924 + gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
2925 return 0;
2926 }
2927 arch_initcall(gate_vma_init);
2928 @@ -472,41 +467,16 @@ int in_gate_area_no_mm(unsigned long addr)
2929
2930 const char *arch_vma_name(struct vm_area_struct *vma)
2931 {
2932 - return is_gate_vma(vma) ? "[vectors]" :
2933 - (vma->vm_mm && vma->vm_start == vma->vm_mm->context.sigpage) ?
2934 - "[sigpage]" : NULL;
2935 + return is_gate_vma(vma) ? "[vectors]" : NULL;
2936 }
2937
2938 -static struct page *signal_page;
2939 -extern struct page *get_signal_page(void);
2940 -
2941 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
2942 {
2943 struct mm_struct *mm = current->mm;
2944 - unsigned long addr;
2945 - int ret;
2946 -
2947 - if (!signal_page)
2948 - signal_page = get_signal_page();
2949 - if (!signal_page)
2950 - return -ENOMEM;
2951
2952 down_write(&mm->mmap_sem);
2953 - addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
2954 - if (IS_ERR_VALUE(addr)) {
2955 - ret = addr;
2956 - goto up_fail;
2957 - }
2958 -
2959 - ret = install_special_mapping(mm, addr, PAGE_SIZE,
2960 - VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
2961 - &signal_page);
2962 -
2963 - if (ret == 0)
2964 - mm->context.sigpage = addr;
2965 -
2966 - up_fail:
2967 + mm->context.sigpage = (PAGE_OFFSET + (get_random_int() % 0x3FFEFFE0)) & 0xFFFFFFFC;
2968 up_write(&mm->mmap_sem);
2969 - return ret;
2970 + return 0;
2971 }
2972 #endif
2973 diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
2974 index 4693188..4596c5e 100644
2975 --- a/arch/arm/kernel/psci.c
2976 +++ b/arch/arm/kernel/psci.c
2977 @@ -24,7 +24,7 @@
2978 #include <asm/opcodes-virt.h>
2979 #include <asm/psci.h>
2980
2981 -struct psci_operations psci_ops;
2982 +struct psci_operations psci_ops __read_only;
2983
2984 static int (*invoke_psci_fn)(u32, u32, u32, u32);
2985
2986 diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
2987 index 0dd3b79..b67388e 100644
2988 --- a/arch/arm/kernel/ptrace.c
2989 +++ b/arch/arm/kernel/ptrace.c
2990 @@ -908,7 +908,7 @@ enum ptrace_syscall_dir {
2991 PTRACE_SYSCALL_EXIT,
2992 };
2993
2994 -static int tracehook_report_syscall(struct pt_regs *regs,
2995 +static void tracehook_report_syscall(struct pt_regs *regs,
2996 enum ptrace_syscall_dir dir)
2997 {
2998 unsigned long ip;
2999 @@ -926,19 +926,29 @@ static int tracehook_report_syscall(struct pt_regs *regs,
3000 current_thread_info()->syscall = -1;
3001
3002 regs->ARM_ip = ip;
3003 - return current_thread_info()->syscall;
3004 }
3005
3006 +#ifdef CONFIG_GRKERNSEC_SETXID
3007 +extern void gr_delayed_cred_worker(void);
3008 +#endif
3009 +
3010 asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
3011 {
3012 current_thread_info()->syscall = scno;
3013
3014 +#ifdef CONFIG_GRKERNSEC_SETXID
3015 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
3016 + gr_delayed_cred_worker();
3017 +#endif
3018 +
3019 /* Do the secure computing check first; failures should be fast. */
3020 if (secure_computing(scno) == -1)
3021 return -1;
3022
3023 if (test_thread_flag(TIF_SYSCALL_TRACE))
3024 - scno = tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
3025 + tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
3026 +
3027 + scno = current_thread_info()->syscall;
3028
3029 if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
3030 trace_sys_enter(regs, scno);
3031 diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
3032 index 50e198c..a8b5f49 100644
3033 --- a/arch/arm/kernel/setup.c
3034 +++ b/arch/arm/kernel/setup.c
3035 @@ -103,21 +103,23 @@ EXPORT_SYMBOL(elf_hwcap);
3036 unsigned int elf_hwcap2 __read_mostly;
3037 EXPORT_SYMBOL(elf_hwcap2);
3038
3039 +pteval_t __supported_pte_mask __read_only;
3040 +pmdval_t __supported_pmd_mask __read_only;
3041
3042 #ifdef MULTI_CPU
3043 -struct processor processor __read_mostly;
3044 +struct processor processor __read_only;
3045 #endif
3046 #ifdef MULTI_TLB
3047 -struct cpu_tlb_fns cpu_tlb __read_mostly;
3048 +struct cpu_tlb_fns cpu_tlb __read_only;
3049 #endif
3050 #ifdef MULTI_USER
3051 -struct cpu_user_fns cpu_user __read_mostly;
3052 +struct cpu_user_fns cpu_user __read_only;
3053 #endif
3054 #ifdef MULTI_CACHE
3055 -struct cpu_cache_fns cpu_cache __read_mostly;
3056 +struct cpu_cache_fns cpu_cache __read_only;
3057 #endif
3058 #ifdef CONFIG_OUTER_CACHE
3059 -struct outer_cache_fns outer_cache __read_mostly;
3060 +struct outer_cache_fns outer_cache __read_only;
3061 EXPORT_SYMBOL(outer_cache);
3062 #endif
3063
3064 @@ -250,9 +252,13 @@ static int __get_cpu_architecture(void)
3065 asm("mrc p15, 0, %0, c0, c1, 4"
3066 : "=r" (mmfr0));
3067 if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
3068 - (mmfr0 & 0x000000f0) >= 0x00000030)
3069 + (mmfr0 & 0x000000f0) >= 0x00000030) {
3070 cpu_arch = CPU_ARCH_ARMv7;
3071 - else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
3072 + if ((mmfr0 & 0x0000000f) == 0x00000005 || (mmfr0 & 0x0000000f) == 0x00000004) {
3073 + __supported_pte_mask |= L_PTE_PXN;
3074 + __supported_pmd_mask |= PMD_PXNTABLE;
3075 + }
3076 + } else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
3077 (mmfr0 & 0x000000f0) == 0x00000020)
3078 cpu_arch = CPU_ARCH_ARMv6;
3079 else
3080 diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
3081 index bd19834..e4d8c66 100644
3082 --- a/arch/arm/kernel/signal.c
3083 +++ b/arch/arm/kernel/signal.c
3084 @@ -24,8 +24,6 @@
3085
3086 extern const unsigned long sigreturn_codes[7];
3087
3088 -static unsigned long signal_return_offset;
3089 -
3090 #ifdef CONFIG_CRUNCH
3091 static int preserve_crunch_context(struct crunch_sigframe __user *frame)
3092 {
3093 @@ -396,8 +394,7 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
3094 * except when the MPU has protected the vectors
3095 * page from PL0
3096 */
3097 - retcode = mm->context.sigpage + signal_return_offset +
3098 - (idx << 2) + thumb;
3099 + retcode = mm->context.sigpage + (idx << 2) + thumb;
3100 } else
3101 #endif
3102 {
3103 @@ -604,33 +601,3 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
3104 } while (thread_flags & _TIF_WORK_MASK);
3105 return 0;
3106 }
3107 -
3108 -struct page *get_signal_page(void)
3109 -{
3110 - unsigned long ptr;
3111 - unsigned offset;
3112 - struct page *page;
3113 - void *addr;
3114 -
3115 - page = alloc_pages(GFP_KERNEL, 0);
3116 -
3117 - if (!page)
3118 - return NULL;
3119 -
3120 - addr = page_address(page);
3121 -
3122 - /* Give the signal return code some randomness */
3123 - offset = 0x200 + (get_random_int() & 0x7fc);
3124 - signal_return_offset = offset;
3125 -
3126 - /*
3127 - * Copy signal return handlers into the vector page, and
3128 - * set sigreturn to be a pointer to these.
3129 - */
3130 - memcpy(addr + offset, sigreturn_codes, sizeof(sigreturn_codes));
3131 -
3132 - ptr = (unsigned long)addr + offset;
3133 - flush_icache_range(ptr, ptr + sizeof(sigreturn_codes));
3134 -
3135 - return page;
3136 -}
3137 diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
3138 index 7c4fada..8581286 100644
3139 --- a/arch/arm/kernel/smp.c
3140 +++ b/arch/arm/kernel/smp.c
3141 @@ -73,7 +73,7 @@ enum ipi_msg_type {
3142
3143 static DECLARE_COMPLETION(cpu_running);
3144
3145 -static struct smp_operations smp_ops;
3146 +static struct smp_operations smp_ops __read_only;
3147
3148 void __init smp_set_ops(struct smp_operations *ops)
3149 {
3150 diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
3151 index 7a3be1d..b00c7de 100644
3152 --- a/arch/arm/kernel/tcm.c
3153 +++ b/arch/arm/kernel/tcm.c
3154 @@ -61,7 +61,7 @@ static struct map_desc itcm_iomap[] __initdata = {
3155 .virtual = ITCM_OFFSET,
3156 .pfn = __phys_to_pfn(ITCM_OFFSET),
3157 .length = 0,
3158 - .type = MT_MEMORY_RWX_ITCM,
3159 + .type = MT_MEMORY_RX_ITCM,
3160 }
3161 };
3162
3163 @@ -267,7 +267,9 @@ no_dtcm:
3164 start = &__sitcm_text;
3165 end = &__eitcm_text;
3166 ram = &__itcm_start;
3167 + pax_open_kernel();
3168 memcpy(start, ram, itcm_code_sz);
3169 + pax_close_kernel();
3170 pr_debug("CPU ITCM: copied code from %p - %p\n",
3171 start, end);
3172 itcm_present = true;
3173 diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
3174 index abd2fc0..895dbb6 100644
3175 --- a/arch/arm/kernel/traps.c
3176 +++ b/arch/arm/kernel/traps.c
3177 @@ -62,7 +62,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long);
3178 void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
3179 {
3180 #ifdef CONFIG_KALLSYMS
3181 - printk("[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from);
3182 + printk("[<%08lx>] (%pA) from [<%08lx>] (%pA)\n", where, (void *)where, from, (void *)from);
3183 #else
3184 printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from);
3185 #endif
3186 @@ -264,6 +264,8 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
3187 static int die_owner = -1;
3188 static unsigned int die_nest_count;
3189
3190 +extern void gr_handle_kernel_exploit(void);
3191 +
3192 static unsigned long oops_begin(void)
3193 {
3194 int cpu;
3195 @@ -306,6 +308,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
3196 panic("Fatal exception in interrupt");
3197 if (panic_on_oops)
3198 panic("Fatal exception");
3199 +
3200 + gr_handle_kernel_exploit();
3201 +
3202 if (signr)
3203 do_exit(signr);
3204 }
3205 @@ -643,7 +648,9 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
3206 * The user helper at 0xffff0fe0 must be used instead.
3207 * (see entry-armv.S for details)
3208 */
3209 + pax_open_kernel();
3210 *((unsigned int *)0xffff0ff0) = regs->ARM_r0;
3211 + pax_close_kernel();
3212 }
3213 return 0;
3214
3215 @@ -900,7 +907,11 @@ void __init early_trap_init(void *vectors_base)
3216 kuser_init(vectors_base);
3217
3218 flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
3219 - modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
3220 +
3221 +#ifndef CONFIG_PAX_MEMORY_UDEREF
3222 + modify_domain(DOMAIN_USER, DOMAIN_USERCLIENT);
3223 +#endif
3224 +
3225 #else /* ifndef CONFIG_CPU_V7M */
3226 /*
3227 * on V7-M there is no need to copy the vector table to a dedicated
3228 diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
3229 index 7bcee5c..e2f3249 100644
3230 --- a/arch/arm/kernel/vmlinux.lds.S
3231 +++ b/arch/arm/kernel/vmlinux.lds.S
3232 @@ -8,7 +8,11 @@
3233 #include <asm/thread_info.h>
3234 #include <asm/memory.h>
3235 #include <asm/page.h>
3236 -
3237 +
3238 +#ifdef CONFIG_PAX_KERNEXEC
3239 +#include <asm/pgtable.h>
3240 +#endif
3241 +
3242 #define PROC_INFO \
3243 . = ALIGN(4); \
3244 VMLINUX_SYMBOL(__proc_info_begin) = .; \
3245 @@ -34,7 +38,7 @@
3246 #endif
3247
3248 #if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
3249 - defined(CONFIG_GENERIC_BUG)
3250 + defined(CONFIG_GENERIC_BUG) || defined(CONFIG_PAX_REFCOUNT)
3251 #define ARM_EXIT_KEEP(x) x
3252 #define ARM_EXIT_DISCARD(x)
3253 #else
3254 @@ -90,6 +94,11 @@ SECTIONS
3255 _text = .;
3256 HEAD_TEXT
3257 }
3258 +
3259 +#ifdef CONFIG_PAX_KERNEXEC
3260 + . = ALIGN(1<<SECTION_SHIFT);
3261 +#endif
3262 +
3263 .text : { /* Real text segment */
3264 _stext = .; /* Text and read-only data */
3265 __exception_text_start = .;
3266 @@ -112,6 +121,8 @@ SECTIONS
3267 ARM_CPU_KEEP(PROC_INFO)
3268 }
3269
3270 + _etext = .; /* End of text section */
3271 +
3272 RO_DATA(PAGE_SIZE)
3273
3274 . = ALIGN(4);
3275 @@ -142,7 +153,9 @@ SECTIONS
3276
3277 NOTES
3278
3279 - _etext = .; /* End of text and rodata section */
3280 +#ifdef CONFIG_PAX_KERNEXEC
3281 + . = ALIGN(1<<SECTION_SHIFT);
3282 +#endif
3283
3284 #ifndef CONFIG_XIP_KERNEL
3285 . = ALIGN(PAGE_SIZE);
3286 @@ -220,6 +233,11 @@ SECTIONS
3287 . = PAGE_OFFSET + TEXT_OFFSET;
3288 #else
3289 __init_end = .;
3290 +
3291 +#ifdef CONFIG_PAX_KERNEXEC
3292 + . = ALIGN(1<<SECTION_SHIFT);
3293 +#endif
3294 +
3295 . = ALIGN(THREAD_SIZE);
3296 __data_loc = .;
3297 #endif
3298 diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
3299 index f0e50a0..8d5d36c 100644
3300 --- a/arch/arm/kvm/arm.c
3301 +++ b/arch/arm/kvm/arm.c
3302 @@ -57,7 +57,7 @@ static unsigned long hyp_default_vectors;
3303 static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_arm_running_vcpu);
3304
3305 /* The VMID used in the VTTBR */
3306 -static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
3307 +static atomic64_unchecked_t kvm_vmid_gen = ATOMIC64_INIT(1);
3308 static u8 kvm_next_vmid;
3309 static DEFINE_SPINLOCK(kvm_vmid_lock);
3310
3311 @@ -408,7 +408,7 @@ void force_vm_exit(const cpumask_t *mask)
3312 */
3313 static bool need_new_vmid_gen(struct kvm *kvm)
3314 {
3315 - return unlikely(kvm->arch.vmid_gen != atomic64_read(&kvm_vmid_gen));
3316 + return unlikely(kvm->arch.vmid_gen != atomic64_read_unchecked(&kvm_vmid_gen));
3317 }
3318
3319 /**
3320 @@ -441,7 +441,7 @@ static void update_vttbr(struct kvm *kvm)
3321
3322 /* First user of a new VMID generation? */
3323 if (unlikely(kvm_next_vmid == 0)) {
3324 - atomic64_inc(&kvm_vmid_gen);
3325 + atomic64_inc_unchecked(&kvm_vmid_gen);
3326 kvm_next_vmid = 1;
3327
3328 /*
3329 @@ -458,7 +458,7 @@ static void update_vttbr(struct kvm *kvm)
3330 kvm_call_hyp(__kvm_flush_vm_context);
3331 }
3332
3333 - kvm->arch.vmid_gen = atomic64_read(&kvm_vmid_gen);
3334 + kvm->arch.vmid_gen = atomic64_read_unchecked(&kvm_vmid_gen);
3335 kvm->arch.vmid = kvm_next_vmid;
3336 kvm_next_vmid++;
3337
3338 diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
3339 index 14a0d98..7771a7d 100644
3340 --- a/arch/arm/lib/clear_user.S
3341 +++ b/arch/arm/lib/clear_user.S
3342 @@ -12,14 +12,14 @@
3343
3344 .text
3345
3346 -/* Prototype: int __clear_user(void *addr, size_t sz)
3347 +/* Prototype: int ___clear_user(void *addr, size_t sz)
3348 * Purpose : clear some user memory
3349 * Params : addr - user memory address to clear
3350 * : sz - number of bytes to clear
3351 * Returns : number of bytes NOT cleared
3352 */
3353 ENTRY(__clear_user_std)
3354 -WEAK(__clear_user)
3355 +WEAK(___clear_user)
3356 stmfd sp!, {r1, lr}
3357 mov r2, #0
3358 cmp r1, #4
3359 @@ -44,7 +44,7 @@ WEAK(__clear_user)
3360 USER( strnebt r2, [r0])
3361 mov r0, #0
3362 ldmfd sp!, {r1, pc}
3363 -ENDPROC(__clear_user)
3364 +ENDPROC(___clear_user)
3365 ENDPROC(__clear_user_std)
3366
3367 .pushsection .fixup,"ax"
3368 diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
3369 index 66a477a..bee61d3 100644
3370 --- a/arch/arm/lib/copy_from_user.S
3371 +++ b/arch/arm/lib/copy_from_user.S
3372 @@ -16,7 +16,7 @@
3373 /*
3374 * Prototype:
3375 *
3376 - * size_t __copy_from_user(void *to, const void *from, size_t n)
3377 + * size_t ___copy_from_user(void *to, const void *from, size_t n)
3378 *
3379 * Purpose:
3380 *
3381 @@ -84,11 +84,11 @@
3382
3383 .text
3384
3385 -ENTRY(__copy_from_user)
3386 +ENTRY(___copy_from_user)
3387
3388 #include "copy_template.S"
3389
3390 -ENDPROC(__copy_from_user)
3391 +ENDPROC(___copy_from_user)
3392
3393 .pushsection .fixup,"ax"
3394 .align 0
3395 diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
3396 index 6ee2f67..d1cce76 100644
3397 --- a/arch/arm/lib/copy_page.S
3398 +++ b/arch/arm/lib/copy_page.S
3399 @@ -10,6 +10,7 @@
3400 * ASM optimised string functions
3401 */
3402 #include <linux/linkage.h>
3403 +#include <linux/const.h>
3404 #include <asm/assembler.h>
3405 #include <asm/asm-offsets.h>
3406 #include <asm/cache.h>
3407 diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
3408 index d066df6..df28194 100644
3409 --- a/arch/arm/lib/copy_to_user.S
3410 +++ b/arch/arm/lib/copy_to_user.S
3411 @@ -16,7 +16,7 @@
3412 /*
3413 * Prototype:
3414 *
3415 - * size_t __copy_to_user(void *to, const void *from, size_t n)
3416 + * size_t ___copy_to_user(void *to, const void *from, size_t n)
3417 *
3418 * Purpose:
3419 *
3420 @@ -88,11 +88,11 @@
3421 .text
3422
3423 ENTRY(__copy_to_user_std)
3424 -WEAK(__copy_to_user)
3425 +WEAK(___copy_to_user)
3426
3427 #include "copy_template.S"
3428
3429 -ENDPROC(__copy_to_user)
3430 +ENDPROC(___copy_to_user)
3431 ENDPROC(__copy_to_user_std)
3432
3433 .pushsection .fixup,"ax"
3434 diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
3435 index 7d08b43..f7ca7ea 100644
3436 --- a/arch/arm/lib/csumpartialcopyuser.S
3437 +++ b/arch/arm/lib/csumpartialcopyuser.S
3438 @@ -57,8 +57,8 @@
3439 * Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT
3440 */
3441
3442 -#define FN_ENTRY ENTRY(csum_partial_copy_from_user)
3443 -#define FN_EXIT ENDPROC(csum_partial_copy_from_user)
3444 +#define FN_ENTRY ENTRY(__csum_partial_copy_from_user)
3445 +#define FN_EXIT ENDPROC(__csum_partial_copy_from_user)
3446
3447 #include "csumpartialcopygeneric.S"
3448
3449 diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
3450 index 5306de3..aed6d03 100644
3451 --- a/arch/arm/lib/delay.c
3452 +++ b/arch/arm/lib/delay.c
3453 @@ -28,7 +28,7 @@
3454 /*
3455 * Default to the loop-based delay implementation.
3456 */
3457 -struct arm_delay_ops arm_delay_ops = {
3458 +struct arm_delay_ops arm_delay_ops __read_only = {
3459 .delay = __loop_delay,
3460 .const_udelay = __loop_const_udelay,
3461 .udelay = __loop_udelay,
3462 diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
3463 index 3e58d71..029817c 100644
3464 --- a/arch/arm/lib/uaccess_with_memcpy.c
3465 +++ b/arch/arm/lib/uaccess_with_memcpy.c
3466 @@ -136,7 +136,7 @@ out:
3467 }
3468
3469 unsigned long
3470 -__copy_to_user(void __user *to, const void *from, unsigned long n)
3471 +___copy_to_user(void __user *to, const void *from, unsigned long n)
3472 {
3473 /*
3474 * This test is stubbed out of the main function above to keep
3475 @@ -190,7 +190,7 @@ out:
3476 return n;
3477 }
3478
3479 -unsigned long __clear_user(void __user *addr, unsigned long n)
3480 +unsigned long ___clear_user(void __user *addr, unsigned long n)
3481 {
3482 /* See rational for this in __copy_to_user() above. */
3483 if (n < 64)
3484 diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
3485 index f7a07a5..258e1f7 100644
3486 --- a/arch/arm/mach-at91/setup.c
3487 +++ b/arch/arm/mach-at91/setup.c
3488 @@ -81,7 +81,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length)
3489
3490 desc->pfn = __phys_to_pfn(base);
3491 desc->length = length;
3492 - desc->type = MT_MEMORY_RWX_NONCACHED;
3493 + desc->type = MT_MEMORY_RW_NONCACHED;
3494
3495 pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n",
3496 base, length, desc->virtual);
3497 diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
3498 index 255f33a..507b157 100644
3499 --- a/arch/arm/mach-kirkwood/common.c
3500 +++ b/arch/arm/mach-kirkwood/common.c
3501 @@ -157,7 +157,16 @@ static void clk_gate_fn_disable(struct clk_hw *hw)
3502 clk_gate_ops.disable(hw);
3503 }
3504
3505 -static struct clk_ops clk_gate_fn_ops;
3506 +static int clk_gate_fn_is_enabled(struct clk_hw *hw)
3507 +{
3508 + return clk_gate_ops.is_enabled(hw);
3509 +}
3510 +
3511 +static struct clk_ops clk_gate_fn_ops = {
3512 + .enable = clk_gate_fn_enable,
3513 + .disable = clk_gate_fn_disable,
3514 + .is_enabled = clk_gate_fn_is_enabled,
3515 +};
3516
3517 static struct clk __init *clk_register_gate_fn(struct device *dev,
3518 const char *name,
3519 @@ -191,14 +200,6 @@ static struct clk __init *clk_register_gate_fn(struct device *dev,
3520 gate_fn->fn_en = fn_en;
3521 gate_fn->fn_dis = fn_dis;
3522
3523 - /* ops is the gate ops, but with our enable/disable functions */
3524 - if (clk_gate_fn_ops.enable != clk_gate_fn_enable ||
3525 - clk_gate_fn_ops.disable != clk_gate_fn_disable) {
3526 - clk_gate_fn_ops = clk_gate_ops;
3527 - clk_gate_fn_ops.enable = clk_gate_fn_enable;
3528 - clk_gate_fn_ops.disable = clk_gate_fn_disable;
3529 - }
3530 -
3531 clk = clk_register(dev, &gate_fn->gate.hw);
3532
3533 if (IS_ERR(clk))
3534 diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
3535 index aead77a..a2253fa 100644
3536 --- a/arch/arm/mach-omap2/board-n8x0.c
3537 +++ b/arch/arm/mach-omap2/board-n8x0.c
3538 @@ -568,7 +568,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
3539 }
3540 #endif
3541
3542 -static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
3543 +static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
3544 .late_init = n8x0_menelaus_late_init,
3545 };
3546
3547 diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
3548 index 9fe8c94..c014a4d 100644
3549 --- a/arch/arm/mach-omap2/gpmc.c
3550 +++ b/arch/arm/mach-omap2/gpmc.c
3551 @@ -148,7 +148,6 @@ struct omap3_gpmc_regs {
3552 };
3553
3554 static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
3555 -static struct irq_chip gpmc_irq_chip;
3556 static int gpmc_irq_start;
3557
3558 static struct resource gpmc_mem_root;
3559 @@ -727,6 +726,18 @@ static void gpmc_irq_noop(struct irq_data *data) { }
3560
3561 static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
3562
3563 +static struct irq_chip gpmc_irq_chip = {
3564 + .name = "gpmc",
3565 + .irq_startup = gpmc_irq_noop_ret,
3566 + .irq_enable = gpmc_irq_enable,
3567 + .irq_disable = gpmc_irq_disable,
3568 + .irq_shutdown = gpmc_irq_noop,
3569 + .irq_ack = gpmc_irq_noop,
3570 + .irq_mask = gpmc_irq_noop,
3571 + .irq_unmask = gpmc_irq_noop,
3572 +
3573 +};
3574 +
3575 static int gpmc_setup_irq(void)
3576 {
3577 int i;
3578 @@ -741,15 +752,6 @@ static int gpmc_setup_irq(void)
3579 return gpmc_irq_start;
3580 }
3581
3582 - gpmc_irq_chip.name = "gpmc";
3583 - gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
3584 - gpmc_irq_chip.irq_enable = gpmc_irq_enable;
3585 - gpmc_irq_chip.irq_disable = gpmc_irq_disable;
3586 - gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
3587 - gpmc_irq_chip.irq_ack = gpmc_irq_noop;
3588 - gpmc_irq_chip.irq_mask = gpmc_irq_noop;
3589 - gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
3590 -
3591 gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
3592 gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
3593
3594 diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3595 index 667915d..2ee1219 100644
3596 --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3597 +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3598 @@ -84,7 +84,7 @@ struct cpu_pm_ops {
3599 int (*finish_suspend)(unsigned long cpu_state);
3600 void (*resume)(void);
3601 void (*scu_prepare)(unsigned int cpu_id, unsigned int cpu_state);
3602 -};
3603 +} __no_const;
3604
3605 static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
3606 static struct powerdomain *mpuss_pd;
3607 @@ -102,7 +102,7 @@ static void dummy_cpu_resume(void)
3608 static void dummy_scu_prepare(unsigned int cpu_id, unsigned int cpu_state)
3609 {}
3610
3611 -struct cpu_pm_ops omap_pm_ops = {
3612 +static struct cpu_pm_ops omap_pm_ops __read_only = {
3613 .finish_suspend = default_finish_suspend,
3614 .resume = dummy_cpu_resume,
3615 .scu_prepare = dummy_scu_prepare,
3616 diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
3617 index 693fe48..c15ea73 100644
3618 --- a/arch/arm/mach-omap2/omap-wakeupgen.c
3619 +++ b/arch/arm/mach-omap2/omap-wakeupgen.c
3620 @@ -343,7 +343,7 @@ static int irq_cpu_hotplug_notify(struct notifier_block *self,
3621 return NOTIFY_OK;
3622 }
3623
3624 -static struct notifier_block __refdata irq_hotplug_notifier = {
3625 +static struct notifier_block irq_hotplug_notifier = {
3626 .notifier_call = irq_cpu_hotplug_notify,
3627 };
3628
3629 diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
3630 index 01ef59d..32ae28a8 100644
3631 --- a/arch/arm/mach-omap2/omap_device.c
3632 +++ b/arch/arm/mach-omap2/omap_device.c
3633 @@ -510,7 +510,7 @@ void omap_device_delete(struct omap_device *od)
3634 struct platform_device __init *omap_device_build(const char *pdev_name,
3635 int pdev_id,
3636 struct omap_hwmod *oh,
3637 - void *pdata, int pdata_len)
3638 + const void *pdata, int pdata_len)
3639 {
3640 struct omap_hwmod *ohs[] = { oh };
3641
3642 @@ -538,7 +538,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name,
3643 struct platform_device __init *omap_device_build_ss(const char *pdev_name,
3644 int pdev_id,
3645 struct omap_hwmod **ohs,
3646 - int oh_cnt, void *pdata,
3647 + int oh_cnt, const void *pdata,
3648 int pdata_len)
3649 {
3650 int ret = -ENOMEM;
3651 diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
3652 index 78c02b3..c94109a 100644
3653 --- a/arch/arm/mach-omap2/omap_device.h
3654 +++ b/arch/arm/mach-omap2/omap_device.h
3655 @@ -72,12 +72,12 @@ int omap_device_idle(struct platform_device *pdev);
3656 /* Core code interface */
3657
3658 struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
3659 - struct omap_hwmod *oh, void *pdata,
3660 + struct omap_hwmod *oh, const void *pdata,
3661 int pdata_len);
3662
3663 struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
3664 struct omap_hwmod **oh, int oh_cnt,
3665 - void *pdata, int pdata_len);
3666 + const void *pdata, int pdata_len);
3667
3668 struct omap_device *omap_device_alloc(struct platform_device *pdev,
3669 struct omap_hwmod **ohs, int oh_cnt);
3670 diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
3671 index 66c60fe..c78950d 100644
3672 --- a/arch/arm/mach-omap2/omap_hwmod.c
3673 +++ b/arch/arm/mach-omap2/omap_hwmod.c
3674 @@ -194,10 +194,10 @@ struct omap_hwmod_soc_ops {
3675 int (*init_clkdm)(struct omap_hwmod *oh);
3676 void (*update_context_lost)(struct omap_hwmod *oh);
3677 int (*get_context_lost)(struct omap_hwmod *oh);
3678 -};
3679 +} __no_const;
3680
3681 /* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
3682 -static struct omap_hwmod_soc_ops soc_ops;
3683 +static struct omap_hwmod_soc_ops soc_ops __read_only;
3684
3685 /* omap_hwmod_list contains all registered struct omap_hwmods */
3686 static LIST_HEAD(omap_hwmod_list);
3687 diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c
3688 index 95fee54..cfa9cf1 100644
3689 --- a/arch/arm/mach-omap2/powerdomains43xx_data.c
3690 +++ b/arch/arm/mach-omap2/powerdomains43xx_data.c
3691 @@ -10,6 +10,7 @@
3692
3693 #include <linux/kernel.h>
3694 #include <linux/init.h>
3695 +#include <asm/pgtable.h>
3696
3697 #include "powerdomain.h"
3698
3699 @@ -129,7 +130,9 @@ static int am43xx_check_vcvp(void)
3700
3701 void __init am43xx_powerdomains_init(void)
3702 {
3703 - omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
3704 + pax_open_kernel();
3705 + *(void **)&omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
3706 + pax_close_kernel();
3707 pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
3708 pwrdm_register_pwrdms(powerdomains_am43xx);
3709 pwrdm_complete_init();
3710 diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
3711 index d15c7bb..b2d1f0c 100644
3712 --- a/arch/arm/mach-omap2/wd_timer.c
3713 +++ b/arch/arm/mach-omap2/wd_timer.c
3714 @@ -110,7 +110,9 @@ static int __init omap_init_wdt(void)
3715 struct omap_hwmod *oh;
3716 char *oh_name = "wd_timer2";
3717 char *dev_name = "omap_wdt";
3718 - struct omap_wd_timer_platform_data pdata;
3719 + static struct omap_wd_timer_platform_data pdata = {
3720 + .read_reset_sources = prm_read_reset_sources
3721 + };
3722
3723 if (!cpu_class_is_omap2() || of_have_populated_dt())
3724 return 0;
3725 @@ -121,8 +123,6 @@ static int __init omap_init_wdt(void)
3726 return -EINVAL;
3727 }
3728
3729 - pdata.read_reset_sources = prm_read_reset_sources;
3730 -
3731 pdev = omap_device_build(dev_name, id, oh, &pdata,
3732 sizeof(struct omap_wd_timer_platform_data));
3733 WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
3734 diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
3735 index b82dcae..44ee5b6 100644
3736 --- a/arch/arm/mach-tegra/cpuidle-tegra20.c
3737 +++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
3738 @@ -180,7 +180,7 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
3739 bool entered_lp2 = false;
3740
3741 if (tegra_pending_sgi())
3742 - ACCESS_ONCE(abort_flag) = true;
3743 + ACCESS_ONCE_RW(abort_flag) = true;
3744
3745 cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
3746
3747 diff --git a/arch/arm/mach-ux500/setup.h b/arch/arm/mach-ux500/setup.h
3748 index 2dea8b5..6499da2 100644
3749 --- a/arch/arm/mach-ux500/setup.h
3750 +++ b/arch/arm/mach-ux500/setup.h
3751 @@ -33,13 +33,6 @@ extern void ux500_timer_init(void);
3752 .type = MT_DEVICE, \
3753 }
3754
3755 -#define __MEM_DEV_DESC(x, sz) { \
3756 - .virtual = IO_ADDRESS(x), \
3757 - .pfn = __phys_to_pfn(x), \
3758 - .length = sz, \
3759 - .type = MT_MEMORY_RWX, \
3760 -}
3761 -
3762 extern struct smp_operations ux500_smp_ops;
3763 extern void ux500_cpu_die(unsigned int cpu);
3764
3765 diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
3766 index 5bf7c3c..571e67e 100644
3767 --- a/arch/arm/mm/Kconfig
3768 +++ b/arch/arm/mm/Kconfig
3769 @@ -446,6 +446,7 @@ config CPU_32v5
3770
3771 config CPU_32v6
3772 bool
3773 + select CPU_USE_DOMAINS if CPU_V6 && MMU && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
3774 select TLS_REG_EMUL if !CPU_32v6K && !MMU
3775
3776 config CPU_32v6K
3777 @@ -600,6 +601,7 @@ config CPU_CP15_MPU
3778
3779 config CPU_USE_DOMAINS
3780 bool
3781 + depends on !ARM_LPAE && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
3782 help
3783 This option enables or disables the use of domain switching
3784 via the set_fs() function.
3785 @@ -799,6 +801,7 @@ config NEED_KUSER_HELPERS
3786 config KUSER_HELPERS
3787 bool "Enable kuser helpers in vector page" if !NEED_KUSER_HELPERS
3788 default y
3789 + depends on !(CPU_V6 || CPU_V6K || CPU_V7) || GRKERNSEC_OLD_ARM_USERLAND
3790 help
3791 Warning: disabling this option may break user programs.
3792
3793 @@ -811,7 +814,7 @@ config KUSER_HELPERS
3794 See Documentation/arm/kernel_user_helpers.txt for details.
3795
3796 However, the fixed address nature of these helpers can be used
3797 - by ROP (return orientated programming) authors when creating
3798 + by ROP (Return Oriented Programming) authors when creating
3799 exploits.
3800
3801 If all of the binaries and libraries which run on your platform
3802 diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
3803 index 9240364..a2b8cf3 100644
3804 --- a/arch/arm/mm/alignment.c
3805 +++ b/arch/arm/mm/alignment.c
3806 @@ -212,10 +212,12 @@ union offset_union {
3807 #define __get16_unaligned_check(ins,val,addr) \
3808 do { \
3809 unsigned int err = 0, v, a = addr; \
3810 + pax_open_userland(); \
3811 __get8_unaligned_check(ins,v,a,err); \
3812 val = v << ((BE) ? 8 : 0); \
3813 __get8_unaligned_check(ins,v,a,err); \
3814 val |= v << ((BE) ? 0 : 8); \
3815 + pax_close_userland(); \
3816 if (err) \
3817 goto fault; \
3818 } while (0)
3819 @@ -229,6 +231,7 @@ union offset_union {
3820 #define __get32_unaligned_check(ins,val,addr) \
3821 do { \
3822 unsigned int err = 0, v, a = addr; \
3823 + pax_open_userland(); \
3824 __get8_unaligned_check(ins,v,a,err); \
3825 val = v << ((BE) ? 24 : 0); \
3826 __get8_unaligned_check(ins,v,a,err); \
3827 @@ -237,6 +240,7 @@ union offset_union {
3828 val |= v << ((BE) ? 8 : 16); \
3829 __get8_unaligned_check(ins,v,a,err); \
3830 val |= v << ((BE) ? 0 : 24); \
3831 + pax_close_userland(); \
3832 if (err) \
3833 goto fault; \
3834 } while (0)
3835 @@ -250,6 +254,7 @@ union offset_union {
3836 #define __put16_unaligned_check(ins,val,addr) \
3837 do { \
3838 unsigned int err = 0, v = val, a = addr; \
3839 + pax_open_userland(); \
3840 __asm__( FIRST_BYTE_16 \
3841 ARM( "1: "ins" %1, [%2], #1\n" ) \
3842 THUMB( "1: "ins" %1, [%2]\n" ) \
3843 @@ -269,6 +274,7 @@ union offset_union {
3844 " .popsection\n" \
3845 : "=r" (err), "=&r" (v), "=&r" (a) \
3846 : "0" (err), "1" (v), "2" (a)); \
3847 + pax_close_userland(); \
3848 if (err) \
3849 goto fault; \
3850 } while (0)
3851 @@ -282,6 +288,7 @@ union offset_union {
3852 #define __put32_unaligned_check(ins,val,addr) \
3853 do { \
3854 unsigned int err = 0, v = val, a = addr; \
3855 + pax_open_userland(); \
3856 __asm__( FIRST_BYTE_32 \
3857 ARM( "1: "ins" %1, [%2], #1\n" ) \
3858 THUMB( "1: "ins" %1, [%2]\n" ) \
3859 @@ -311,6 +318,7 @@ union offset_union {
3860 " .popsection\n" \
3861 : "=r" (err), "=&r" (v), "=&r" (a) \
3862 : "0" (err), "1" (v), "2" (a)); \
3863 + pax_close_userland(); \
3864 if (err) \
3865 goto fault; \
3866 } while (0)
3867 diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
3868 index 7abde2c..9df495f 100644
3869 --- a/arch/arm/mm/cache-l2x0.c
3870 +++ b/arch/arm/mm/cache-l2x0.c
3871 @@ -46,7 +46,7 @@ struct l2x0_of_data {
3872 void (*setup)(const struct device_node *, u32 *, u32 *);
3873 void (*save)(void);
3874 struct outer_cache_fns outer_cache;
3875 -};
3876 +} __do_const;
3877
3878 static bool of_init = false;
3879
3880 diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
3881 index 6eb97b3..ac509f6 100644
3882 --- a/arch/arm/mm/context.c
3883 +++ b/arch/arm/mm/context.c
3884 @@ -43,7 +43,7 @@
3885 #define NUM_USER_ASIDS ASID_FIRST_VERSION
3886
3887 static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
3888 -static atomic64_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
3889 +static atomic64_unchecked_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
3890 static DECLARE_BITMAP(asid_map, NUM_USER_ASIDS);
3891
3892 static DEFINE_PER_CPU(atomic64_t, active_asids);
3893 @@ -182,7 +182,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
3894 {
3895 static u32 cur_idx = 1;
3896 u64 asid = atomic64_read(&mm->context.id);
3897 - u64 generation = atomic64_read(&asid_generation);
3898 + u64 generation = atomic64_read_unchecked(&asid_generation);
3899
3900 if (asid != 0 && is_reserved_asid(asid)) {
3901 /*
3902 @@ -203,7 +203,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
3903 */
3904 asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx);
3905 if (asid == NUM_USER_ASIDS) {
3906 - generation = atomic64_add_return(ASID_FIRST_VERSION,
3907 + generation = atomic64_add_return_unchecked(ASID_FIRST_VERSION,
3908 &asid_generation);
3909 flush_context(cpu);
3910 asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1);
3911 @@ -234,14 +234,14 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk)
3912 cpu_set_reserved_ttbr0();
3913
3914 asid = atomic64_read(&mm->context.id);
3915 - if (!((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS)
3916 + if (!((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS)
3917 && atomic64_xchg(&per_cpu(active_asids, cpu), asid))
3918 goto switch_mm_fastpath;
3919
3920 raw_spin_lock_irqsave(&cpu_asid_lock, flags);
3921 /* Check that our ASID belongs to the current generation. */
3922 asid = atomic64_read(&mm->context.id);
3923 - if ((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS) {
3924 + if ((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS) {
3925 asid = new_context(mm, cpu);
3926 atomic64_set(&mm->context.id, asid);
3927 }
3928 diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
3929 index eb8830a..5360ce7 100644
3930 --- a/arch/arm/mm/fault.c
3931 +++ b/arch/arm/mm/fault.c
3932 @@ -25,6 +25,7 @@
3933 #include <asm/system_misc.h>
3934 #include <asm/system_info.h>
3935 #include <asm/tlbflush.h>
3936 +#include <asm/sections.h>
3937
3938 #include "fault.h"
3939
3940 @@ -138,6 +139,31 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
3941 if (fixup_exception(regs))
3942 return;
3943
3944 +#ifdef CONFIG_PAX_MEMORY_UDEREF
3945 + if (addr < TASK_SIZE) {
3946 + if (current->signal->curr_ip)
3947 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3948 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3949 + else
3950 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
3951 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3952 + }
3953 +#endif
3954 +
3955 +#ifdef CONFIG_PAX_KERNEXEC
3956 + if ((fsr & FSR_WRITE) &&
3957 + (((unsigned long)_stext <= addr && addr < init_mm.end_code) ||
3958 + (MODULES_VADDR <= addr && addr < MODULES_END)))
3959 + {
3960 + if (current->signal->curr_ip)
3961 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3962 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
3963 + else
3964 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
3965 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
3966 + }
3967 +#endif
3968 +
3969 /*
3970 * No handler, we'll have to terminate things with extreme prejudice.
3971 */
3972 @@ -174,6 +200,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
3973 }
3974 #endif
3975
3976 +#ifdef CONFIG_PAX_PAGEEXEC
3977 + if (fsr & FSR_LNX_PF) {
3978 + pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
3979 + do_group_exit(SIGKILL);
3980 + }
3981 +#endif
3982 +
3983 tsk->thread.address = addr;
3984 tsk->thread.error_code = fsr;
3985 tsk->thread.trap_no = 14;
3986 @@ -401,6 +434,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
3987 }
3988 #endif /* CONFIG_MMU */
3989
3990 +#ifdef CONFIG_PAX_PAGEEXEC
3991 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
3992 +{
3993 + long i;
3994 +
3995 + printk(KERN_ERR "PAX: bytes at PC: ");
3996 + for (i = 0; i < 20; i++) {
3997 + unsigned char c;
3998 + if (get_user(c, (__force unsigned char __user *)pc+i))
3999 + printk(KERN_CONT "?? ");
4000 + else
4001 + printk(KERN_CONT "%02x ", c);
4002 + }
4003 + printk("\n");
4004 +
4005 + printk(KERN_ERR "PAX: bytes at SP-4: ");
4006 + for (i = -1; i < 20; i++) {
4007 + unsigned long c;
4008 + if (get_user(c, (__force unsigned long __user *)sp+i))
4009 + printk(KERN_CONT "???????? ");
4010 + else
4011 + printk(KERN_CONT "%08lx ", c);
4012 + }
4013 + printk("\n");
4014 +}
4015 +#endif
4016 +
4017 /*
4018 * First Level Translation Fault Handler
4019 *
4020 @@ -548,9 +608,22 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
4021 const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
4022 struct siginfo info;
4023
4024 +#ifdef CONFIG_PAX_MEMORY_UDEREF
4025 + if (addr < TASK_SIZE && is_domain_fault(fsr)) {
4026 + if (current->signal->curr_ip)
4027 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
4028 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
4029 + else
4030 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
4031 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
4032 + goto die;
4033 + }
4034 +#endif
4035 +
4036 if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
4037 return;
4038
4039 +die:
4040 printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
4041 inf->name, fsr, addr);
4042
4043 @@ -574,15 +647,98 @@ hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *
4044 ifsr_info[nr].name = name;
4045 }
4046
4047 +asmlinkage int sys_sigreturn(struct pt_regs *regs);
4048 +asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
4049 +
4050 asmlinkage void __exception
4051 do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
4052 {
4053 const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
4054 struct siginfo info;
4055 + unsigned long pc = instruction_pointer(regs);
4056 +
4057 + if (user_mode(regs)) {
4058 + unsigned long sigpage = current->mm->context.sigpage;
4059 +
4060 + if (sigpage <= pc && pc < sigpage + 7*4) {
4061 + if (pc < sigpage + 3*4)
4062 + sys_sigreturn(regs);
4063 + else
4064 + sys_rt_sigreturn(regs);
4065 + return;
4066 + }
4067 + if (pc == 0xffff0f60UL) {
4068 + /*
4069 + * PaX: __kuser_cmpxchg64 emulation
4070 + */
4071 + // TODO
4072 + //regs->ARM_pc = regs->ARM_lr;
4073 + //return;
4074 + }
4075 + if (pc == 0xffff0fa0UL) {
4076 + /*
4077 + * PaX: __kuser_memory_barrier emulation
4078 + */
4079 + // dmb(); implied by the exception
4080 + regs->ARM_pc = regs->ARM_lr;
4081 + return;
4082 + }
4083 + if (pc == 0xffff0fc0UL) {
4084 + /*
4085 + * PaX: __kuser_cmpxchg emulation
4086 + */
4087 + // TODO
4088 + //long new;
4089 + //int op;
4090 +
4091 + //op = FUTEX_OP_SET << 28;
4092 + //new = futex_atomic_op_inuser(op, regs->ARM_r2);
4093 + //regs->ARM_r0 = old != new;
4094 + //regs->ARM_pc = regs->ARM_lr;
4095 + //return;
4096 + }
4097 + if (pc == 0xffff0fe0UL) {
4098 + /*
4099 + * PaX: __kuser_get_tls emulation
4100 + */
4101 + regs->ARM_r0 = current_thread_info()->tp_value[0];
4102 + regs->ARM_pc = regs->ARM_lr;
4103 + return;
4104 + }
4105 + }
4106 +
4107 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
4108 + else if (is_domain_fault(ifsr) || is_xn_fault(ifsr)) {
4109 + if (current->signal->curr_ip)
4110 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
4111 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
4112 + pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
4113 + else
4114 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", current->comm, task_pid_nr(current),
4115 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
4116 + pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
4117 + goto die;
4118 + }
4119 +#endif
4120 +
4121 +#ifdef CONFIG_PAX_REFCOUNT
4122 + if (fsr_fs(ifsr) == FAULT_CODE_DEBUG) {
4123 + unsigned int bkpt;
4124 +
4125 + if (!probe_kernel_address(pc, bkpt) && cpu_to_le32(bkpt) == 0xe12f1073) {
4126 + current->thread.error_code = ifsr;
4127 + current->thread.trap_no = 0;
4128 + pax_report_refcount_overflow(regs);
4129 + fixup_exception(regs);
4130 + return;
4131 + }
4132 + }
4133 +#endif
4134
4135 if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
4136 return;
4137
4138 +die:
4139 printk(KERN_ALERT "Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
4140 inf->name, ifsr, addr);
4141
4142 diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
4143 index cf08bdf..772656c 100644
4144 --- a/arch/arm/mm/fault.h
4145 +++ b/arch/arm/mm/fault.h
4146 @@ -3,6 +3,7 @@
4147
4148 /*
4149 * Fault status register encodings. We steal bit 31 for our own purposes.
4150 + * Set when the FSR value is from an instruction fault.
4151 */
4152 #define FSR_LNX_PF (1 << 31)
4153 #define FSR_WRITE (1 << 11)
4154 @@ -22,6 +23,17 @@ static inline int fsr_fs(unsigned int fsr)
4155 }
4156 #endif
4157
4158 +/* valid for LPAE and !LPAE */
4159 +static inline int is_xn_fault(unsigned int fsr)
4160 +{
4161 + return ((fsr_fs(fsr) & 0x3c) == 0xc);
4162 +}
4163 +
4164 +static inline int is_domain_fault(unsigned int fsr)
4165 +{
4166 + return ((fsr_fs(fsr) & 0xD) == 0x9);
4167 +}
4168 +
4169 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
4170 unsigned long search_exception_table(unsigned long addr);
4171
4172 diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
4173 index 2a77ba8..68e6a7a 100644
4174 --- a/arch/arm/mm/init.c
4175 +++ b/arch/arm/mm/init.c
4176 @@ -30,6 +30,8 @@
4177 #include <asm/setup.h>
4178 #include <asm/tlb.h>
4179 #include <asm/fixmap.h>
4180 +#include <asm/system_info.h>
4181 +#include <asm/cp15.h>
4182
4183 #include <asm/mach/arch.h>
4184 #include <asm/mach/map.h>
4185 @@ -627,7 +629,46 @@ void free_initmem(void)
4186 {
4187 #ifdef CONFIG_HAVE_TCM
4188 extern char __tcm_start, __tcm_end;
4189 +#endif
4190
4191 +#ifdef CONFIG_PAX_KERNEXEC
4192 + unsigned long addr;
4193 + pgd_t *pgd;
4194 + pud_t *pud;
4195 + pmd_t *pmd;
4196 + int cpu_arch = cpu_architecture();
4197 + unsigned int cr = get_cr();
4198 +
4199 + if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
4200 + /* make pages tables, etc before .text NX */
4201 + for (addr = PAGE_OFFSET; addr < (unsigned long)_stext; addr += SECTION_SIZE) {
4202 + pgd = pgd_offset_k(addr);
4203 + pud = pud_offset(pgd, addr);
4204 + pmd = pmd_offset(pud, addr);
4205 + __section_update(pmd, addr, PMD_SECT_XN);
4206 + }
4207 + /* make init NX */
4208 + for (addr = (unsigned long)__init_begin; addr < (unsigned long)_sdata; addr += SECTION_SIZE) {
4209 + pgd = pgd_offset_k(addr);
4210 + pud = pud_offset(pgd, addr);
4211 + pmd = pmd_offset(pud, addr);
4212 + __section_update(pmd, addr, PMD_SECT_XN);
4213 + }
4214 + /* make kernel code/rodata RX */
4215 + for (addr = (unsigned long)_stext; addr < (unsigned long)__init_begin; addr += SECTION_SIZE) {
4216 + pgd = pgd_offset_k(addr);
4217 + pud = pud_offset(pgd, addr);
4218 + pmd = pmd_offset(pud, addr);
4219 +#ifdef CONFIG_ARM_LPAE
4220 + __section_update(pmd, addr, PMD_SECT_RDONLY);
4221 +#else
4222 + __section_update(pmd, addr, PMD_SECT_APX|PMD_SECT_AP_WRITE);
4223 +#endif
4224 + }
4225 + }
4226 +#endif
4227 +
4228 +#ifdef CONFIG_HAVE_TCM
4229 poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
4230 free_reserved_area(&__tcm_start, &__tcm_end, -1, "TCM link");
4231 #endif
4232 diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
4233 index f9c32ba..8540068 100644
4234 --- a/arch/arm/mm/ioremap.c
4235 +++ b/arch/arm/mm/ioremap.c
4236 @@ -392,9 +392,9 @@ __arm_ioremap_exec(phys_addr_t phys_addr, size_t size, bool cached)
4237 unsigned int mtype;
4238
4239 if (cached)
4240 - mtype = MT_MEMORY_RWX;
4241 + mtype = MT_MEMORY_RX;
4242 else
4243 - mtype = MT_MEMORY_RWX_NONCACHED;
4244 + mtype = MT_MEMORY_RX_NONCACHED;
4245
4246 return __arm_ioremap_caller(phys_addr, size, mtype,
4247 __builtin_return_address(0));
4248 diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
4249 index 5e85ed3..b10a7ed 100644
4250 --- a/arch/arm/mm/mmap.c
4251 +++ b/arch/arm/mm/mmap.c
4252 @@ -59,6 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4253 struct vm_area_struct *vma;
4254 int do_align = 0;
4255 int aliasing = cache_is_vipt_aliasing();
4256 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
4257 struct vm_unmapped_area_info info;
4258
4259 /*
4260 @@ -81,6 +82,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4261 if (len > TASK_SIZE)
4262 return -ENOMEM;
4263
4264 +#ifdef CONFIG_PAX_RANDMMAP
4265 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4266 +#endif
4267 +
4268 if (addr) {
4269 if (do_align)
4270 addr = COLOUR_ALIGN(addr, pgoff);
4271 @@ -88,8 +93,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4272 addr = PAGE_ALIGN(addr);
4273
4274 vma = find_vma(mm, addr);
4275 - if (TASK_SIZE - len >= addr &&
4276 - (!vma || addr + len <= vma->vm_start))
4277 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
4278 return addr;
4279 }
4280
4281 @@ -99,6 +103,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4282 info.high_limit = TASK_SIZE;
4283 info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
4284 info.align_offset = pgoff << PAGE_SHIFT;
4285 + info.threadstack_offset = offset;
4286 return vm_unmapped_area(&info);
4287 }
4288
4289 @@ -112,6 +117,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4290 unsigned long addr = addr0;
4291 int do_align = 0;
4292 int aliasing = cache_is_vipt_aliasing();
4293 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
4294 struct vm_unmapped_area_info info;
4295
4296 /*
4297 @@ -132,6 +138,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4298 return addr;
4299 }
4300
4301 +#ifdef CONFIG_PAX_RANDMMAP
4302 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4303 +#endif
4304 +
4305 /* requesting a specific address */
4306 if (addr) {
4307 if (do_align)
4308 @@ -139,8 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4309 else
4310 addr = PAGE_ALIGN(addr);
4311 vma = find_vma(mm, addr);
4312 - if (TASK_SIZE - len >= addr &&
4313 - (!vma || addr + len <= vma->vm_start))
4314 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
4315 return addr;
4316 }
4317
4318 @@ -150,6 +159,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4319 info.high_limit = mm->mmap_base;
4320 info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
4321 info.align_offset = pgoff << PAGE_SHIFT;
4322 + info.threadstack_offset = offset;
4323 addr = vm_unmapped_area(&info);
4324
4325 /*
4326 @@ -173,6 +183,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4327 {
4328 unsigned long random_factor = 0UL;
4329
4330 +#ifdef CONFIG_PAX_RANDMMAP
4331 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4332 +#endif
4333 +
4334 /* 8 bits of randomness in 20 address space bits */
4335 if ((current->flags & PF_RANDOMIZE) &&
4336 !(current->personality & ADDR_NO_RANDOMIZE))
4337 @@ -180,9 +194,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4338
4339 if (mmap_is_legacy()) {
4340 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
4341 +
4342 +#ifdef CONFIG_PAX_RANDMMAP
4343 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4344 + mm->mmap_base += mm->delta_mmap;
4345 +#endif
4346 +
4347 mm->get_unmapped_area = arch_get_unmapped_area;
4348 } else {
4349 mm->mmap_base = mmap_base(random_factor);
4350 +
4351 +#ifdef CONFIG_PAX_RANDMMAP
4352 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4353 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
4354 +#endif
4355 +
4356 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
4357 }
4358 }
4359 diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
4360 index b68c6b2..f66c492 100644
4361 --- a/arch/arm/mm/mmu.c
4362 +++ b/arch/arm/mm/mmu.c
4363 @@ -39,6 +39,22 @@
4364 #include "mm.h"
4365 #include "tcm.h"
4366
4367 +#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
4368 +void modify_domain(unsigned int dom, unsigned int type)
4369 +{
4370 + struct thread_info *thread = current_thread_info();
4371 + unsigned int domain = thread->cpu_domain;
4372 + /*
4373 + * DOMAIN_MANAGER might be defined to some other value,
4374 + * use the arch-defined constant
4375 + */
4376 + domain &= ~domain_val(dom, 3);
4377 + thread->cpu_domain = domain | domain_val(dom, type);
4378 + set_domain(thread->cpu_domain);
4379 +}
4380 +EXPORT_SYMBOL(modify_domain);
4381 +#endif
4382 +
4383 /*
4384 * empty_zero_page is a special page that is used for
4385 * zero-initialized data and COW.
4386 @@ -235,7 +251,15 @@ __setup("noalign", noalign_setup);
4387 #define PROT_PTE_S2_DEVICE PROT_PTE_DEVICE
4388 #define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE
4389
4390 -static struct mem_type mem_types[] = {
4391 +#ifdef CONFIG_PAX_KERNEXEC
4392 +#define L_PTE_KERNEXEC L_PTE_RDONLY
4393 +#define PMD_SECT_KERNEXEC PMD_SECT_RDONLY
4394 +#else
4395 +#define L_PTE_KERNEXEC L_PTE_DIRTY
4396 +#define PMD_SECT_KERNEXEC PMD_SECT_AP_WRITE
4397 +#endif
4398 +
4399 +static struct mem_type mem_types[] __read_only = {
4400 [MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */
4401 .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
4402 L_PTE_SHARED,
4403 @@ -264,19 +288,19 @@ static struct mem_type mem_types[] = {
4404 .prot_sect = PROT_SECT_DEVICE,
4405 .domain = DOMAIN_IO,
4406 },
4407 - [MT_UNCACHED] = {
4408 + [MT_UNCACHED_RW] = {
4409 .prot_pte = PROT_PTE_DEVICE,
4410 .prot_l1 = PMD_TYPE_TABLE,
4411 .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4412 .domain = DOMAIN_IO,
4413 },
4414 - [MT_CACHECLEAN] = {
4415 - .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4416 + [MT_CACHECLEAN_RO] = {
4417 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_RDONLY,
4418 .domain = DOMAIN_KERNEL,
4419 },
4420 #ifndef CONFIG_ARM_LPAE
4421 - [MT_MINICLEAN] = {
4422 - .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE,
4423 + [MT_MINICLEAN_RO] = {
4424 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_MINICACHE | PMD_SECT_XN | PMD_SECT_RDONLY,
4425 .domain = DOMAIN_KERNEL,
4426 },
4427 #endif
4428 @@ -284,15 +308,15 @@ static struct mem_type mem_types[] = {
4429 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4430 L_PTE_RDONLY,
4431 .prot_l1 = PMD_TYPE_TABLE,
4432 - .domain = DOMAIN_USER,
4433 + .domain = DOMAIN_VECTORS,
4434 },
4435 [MT_HIGH_VECTORS] = {
4436 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4437 L_PTE_USER | L_PTE_RDONLY,
4438 .prot_l1 = PMD_TYPE_TABLE,
4439 - .domain = DOMAIN_USER,
4440 + .domain = DOMAIN_VECTORS,
4441 },
4442 - [MT_MEMORY_RWX] = {
4443 + [__MT_MEMORY_RWX] = {
4444 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
4445 .prot_l1 = PMD_TYPE_TABLE,
4446 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4447 @@ -305,17 +329,30 @@ static struct mem_type mem_types[] = {
4448 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4449 .domain = DOMAIN_KERNEL,
4450 },
4451 - [MT_ROM] = {
4452 - .prot_sect = PMD_TYPE_SECT,
4453 + [MT_MEMORY_RX] = {
4454 + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
4455 + .prot_l1 = PMD_TYPE_TABLE,
4456 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4457 + .domain = DOMAIN_KERNEL,
4458 + },
4459 + [MT_ROM_RX] = {
4460 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
4461 .domain = DOMAIN_KERNEL,
4462 },
4463 - [MT_MEMORY_RWX_NONCACHED] = {
4464 + [MT_MEMORY_RW_NONCACHED] = {
4465 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4466 L_PTE_MT_BUFFERABLE,
4467 .prot_l1 = PMD_TYPE_TABLE,
4468 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4469 .domain = DOMAIN_KERNEL,
4470 },
4471 + [MT_MEMORY_RX_NONCACHED] = {
4472 + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC |
4473 + L_PTE_MT_BUFFERABLE,
4474 + .prot_l1 = PMD_TYPE_TABLE,
4475 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4476 + .domain = DOMAIN_KERNEL,
4477 + },
4478 [MT_MEMORY_RW_DTCM] = {
4479 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4480 L_PTE_XN,
4481 @@ -323,9 +360,10 @@ static struct mem_type mem_types[] = {
4482 .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4483 .domain = DOMAIN_KERNEL,
4484 },
4485 - [MT_MEMORY_RWX_ITCM] = {
4486 - .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
4487 + [MT_MEMORY_RX_ITCM] = {
4488 + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
4489 .prot_l1 = PMD_TYPE_TABLE,
4490 + .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4491 .domain = DOMAIN_KERNEL,
4492 },
4493 [MT_MEMORY_RW_SO] = {
4494 @@ -534,9 +572,14 @@ static void __init build_mem_type_table(void)
4495 * Mark cache clean areas and XIP ROM read only
4496 * from SVC mode and no access from userspace.
4497 */
4498 - mem_types[MT_ROM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4499 - mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4500 - mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4501 + mem_types[MT_ROM_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4502 +#ifdef CONFIG_PAX_KERNEXEC
4503 + mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4504 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4505 + mem_types[MT_MEMORY_RX_ITCM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4506 +#endif
4507 + mem_types[MT_MINICLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4508 + mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4509 #endif
4510
4511 if (is_smp()) {
4512 @@ -552,13 +595,17 @@ static void __init build_mem_type_table(void)
4513 mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
4514 mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
4515 mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
4516 - mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
4517 - mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
4518 + mem_types[__MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
4519 + mem_types[__MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
4520 mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S;
4521 mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED;
4522 + mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_S;
4523 + mem_types[MT_MEMORY_RX].prot_pte |= L_PTE_SHARED;
4524 mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
4525 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_S;
4526 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_pte |= L_PTE_SHARED;
4527 + mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_S;
4528 + mem_types[MT_MEMORY_RW_NONCACHED].prot_pte |= L_PTE_SHARED;
4529 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_S;
4530 + mem_types[MT_MEMORY_RX_NONCACHED].prot_pte |= L_PTE_SHARED;
4531 }
4532 }
4533
4534 @@ -569,15 +616,20 @@ static void __init build_mem_type_table(void)
4535 if (cpu_arch >= CPU_ARCH_ARMv6) {
4536 if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
4537 /* Non-cacheable Normal is XCB = 001 */
4538 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
4539 + mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
4540 + PMD_SECT_BUFFERED;
4541 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
4542 PMD_SECT_BUFFERED;
4543 } else {
4544 /* For both ARMv6 and non-TEX-remapping ARMv7 */
4545 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
4546 + mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
4547 + PMD_SECT_TEX(1);
4548 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
4549 PMD_SECT_TEX(1);
4550 }
4551 } else {
4552 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4553 + mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4554 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4555 }
4556
4557 #ifdef CONFIG_ARM_LPAE
4558 @@ -593,6 +645,8 @@ static void __init build_mem_type_table(void)
4559 vecs_pgprot |= PTE_EXT_AF;
4560 #endif
4561
4562 + user_pgprot |= __supported_pte_mask;
4563 +
4564 for (i = 0; i < 16; i++) {
4565 pteval_t v = pgprot_val(protection_map[i]);
4566 protection_map[i] = __pgprot(v | user_pgprot);
4567 @@ -610,21 +664,24 @@ static void __init build_mem_type_table(void)
4568
4569 mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
4570 mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
4571 - mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
4572 - mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot;
4573 + mem_types[__MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
4574 + mem_types[__MT_MEMORY_RWX].prot_pte |= kern_pgprot;
4575 mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd;
4576 mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot;
4577 + mem_types[MT_MEMORY_RX].prot_sect |= ecc_mask | cp->pmd;
4578 + mem_types[MT_MEMORY_RX].prot_pte |= kern_pgprot;
4579 mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;
4580 - mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask;
4581 - mem_types[MT_ROM].prot_sect |= cp->pmd;
4582 + mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= ecc_mask;
4583 + mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= ecc_mask;
4584 + mem_types[MT_ROM_RX].prot_sect |= cp->pmd;
4585
4586 switch (cp->pmd) {
4587 case PMD_SECT_WT:
4588 - mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WT;
4589 + mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WT;
4590 break;
4591 case PMD_SECT_WB:
4592 case PMD_SECT_WBWA:
4593 - mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WB;
4594 + mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WB;
4595 break;
4596 }
4597 pr_info("Memory policy: %sData cache %s\n",
4598 @@ -842,7 +899,7 @@ static void __init create_mapping(struct map_desc *md)
4599 return;
4600 }
4601
4602 - if ((md->type == MT_DEVICE || md->type == MT_ROM) &&
4603 + if ((md->type == MT_DEVICE || md->type == MT_ROM_RX) &&
4604 md->virtual >= PAGE_OFFSET &&
4605 (md->virtual < VMALLOC_START || md->virtual >= VMALLOC_END)) {
4606 printk(KERN_WARNING "BUG: mapping for 0x%08llx"
4607 @@ -1257,18 +1314,15 @@ void __init arm_mm_memblock_reserve(void)
4608 * called function. This means you can't use any function or debugging
4609 * method which may touch any device, otherwise the kernel _will_ crash.
4610 */
4611 +
4612 +static char vectors[PAGE_SIZE * 2] __read_only __aligned(PAGE_SIZE);
4613 +
4614 static void __init devicemaps_init(const struct machine_desc *mdesc)
4615 {
4616 struct map_desc map;
4617 unsigned long addr;
4618 - void *vectors;
4619
4620 - /*
4621 - * Allocate the vector page early.
4622 - */
4623 - vectors = early_alloc(PAGE_SIZE * 2);
4624 -
4625 - early_trap_init(vectors);
4626 + early_trap_init(&vectors);
4627
4628 for (addr = VMALLOC_START; addr; addr += PMD_SIZE)
4629 pmd_clear(pmd_off_k(addr));
4630 @@ -1281,7 +1335,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4631 map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
4632 map.virtual = MODULES_VADDR;
4633 map.length = ((unsigned long)_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
4634 - map.type = MT_ROM;
4635 + map.type = MT_ROM_RX;
4636 create_mapping(&map);
4637 #endif
4638
4639 @@ -1292,14 +1346,14 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4640 map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS);
4641 map.virtual = FLUSH_BASE;
4642 map.length = SZ_1M;
4643 - map.type = MT_CACHECLEAN;
4644 + map.type = MT_CACHECLEAN_RO;
4645 create_mapping(&map);
4646 #endif
4647 #ifdef FLUSH_BASE_MINICACHE
4648 map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS + SZ_1M);
4649 map.virtual = FLUSH_BASE_MINICACHE;
4650 map.length = SZ_1M;
4651 - map.type = MT_MINICLEAN;
4652 + map.type = MT_MINICLEAN_RO;
4653 create_mapping(&map);
4654 #endif
4655
4656 @@ -1308,7 +1362,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4657 * location (0xffff0000). If we aren't using high-vectors, also
4658 * create a mapping at the low-vectors virtual address.
4659 */
4660 - map.pfn = __phys_to_pfn(virt_to_phys(vectors));
4661 + map.pfn = __phys_to_pfn(virt_to_phys(&vectors));
4662 map.virtual = 0xffff0000;
4663 map.length = PAGE_SIZE;
4664 #ifdef CONFIG_KUSER_HELPERS
4665 @@ -1365,8 +1419,10 @@ static void __init kmap_init(void)
4666 static void __init map_lowmem(void)
4667 {
4668 struct memblock_region *reg;
4669 +#ifndef CONFIG_PAX_KERNEXEC
4670 unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
4671 unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
4672 +#endif
4673
4674 /* Map all the lowmem memory banks. */
4675 for_each_memblock(memory, reg) {
4676 @@ -1379,11 +1435,48 @@ static void __init map_lowmem(void)
4677 if (start >= end)
4678 break;
4679
4680 +#ifdef CONFIG_PAX_KERNEXEC
4681 + map.pfn = __phys_to_pfn(start);
4682 + map.virtual = __phys_to_virt(start);
4683 + map.length = end - start;
4684 +
4685 + if (map.virtual <= (unsigned long)_stext && ((unsigned long)_end < (map.virtual + map.length))) {
4686 + struct map_desc kernel;
4687 + struct map_desc initmap;
4688 +
4689 + /* when freeing initmem we will make this RW */
4690 + initmap.pfn = __phys_to_pfn(__pa(__init_begin));
4691 + initmap.virtual = (unsigned long)__init_begin;
4692 + initmap.length = _sdata - __init_begin;
4693 + initmap.type = __MT_MEMORY_RWX;
4694 + create_mapping(&initmap);
4695 +
4696 + /* when freeing initmem we will make this RX */
4697 + kernel.pfn = __phys_to_pfn(__pa(_stext));
4698 + kernel.virtual = (unsigned long)_stext;
4699 + kernel.length = __init_begin - _stext;
4700 + kernel.type = __MT_MEMORY_RWX;
4701 + create_mapping(&kernel);
4702 +
4703 + if (map.virtual < (unsigned long)_stext) {
4704 + map.length = (unsigned long)_stext - map.virtual;
4705 + map.type = __MT_MEMORY_RWX;
4706 + create_mapping(&map);
4707 + }
4708 +
4709 + map.pfn = __phys_to_pfn(__pa(_sdata));
4710 + map.virtual = (unsigned long)_sdata;
4711 + map.length = end - __pa(_sdata);
4712 + }
4713 +
4714 + map.type = MT_MEMORY_RW;
4715 + create_mapping(&map);
4716 +#else
4717 if (end < kernel_x_start || start >= kernel_x_end) {
4718 map.pfn = __phys_to_pfn(start);
4719 map.virtual = __phys_to_virt(start);
4720 map.length = end - start;
4721 - map.type = MT_MEMORY_RWX;
4722 + map.type = __MT_MEMORY_RWX;
4723
4724 create_mapping(&map);
4725 } else {
4726 @@ -1400,7 +1493,7 @@ static void __init map_lowmem(void)
4727 map.pfn = __phys_to_pfn(kernel_x_start);
4728 map.virtual = __phys_to_virt(kernel_x_start);
4729 map.length = kernel_x_end - kernel_x_start;
4730 - map.type = MT_MEMORY_RWX;
4731 + map.type = __MT_MEMORY_RWX;
4732
4733 create_mapping(&map);
4734
4735 @@ -1413,6 +1506,7 @@ static void __init map_lowmem(void)
4736 create_mapping(&map);
4737 }
4738 }
4739 +#endif
4740 }
4741 }
4742
4743 diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c
4744 index 5b217f4..c23f40e 100644
4745 --- a/arch/arm/plat-iop/setup.c
4746 +++ b/arch/arm/plat-iop/setup.c
4747 @@ -24,7 +24,7 @@ static struct map_desc iop3xx_std_desc[] __initdata = {
4748 .virtual = IOP3XX_PERIPHERAL_VIRT_BASE,
4749 .pfn = __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
4750 .length = IOP3XX_PERIPHERAL_SIZE,
4751 - .type = MT_UNCACHED,
4752 + .type = MT_UNCACHED_RW,
4753 },
4754 };
4755
4756 diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
4757 index a5bc92d..0bb4730 100644
4758 --- a/arch/arm/plat-omap/sram.c
4759 +++ b/arch/arm/plat-omap/sram.c
4760 @@ -93,6 +93,8 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
4761 * Looks like we need to preserve some bootloader code at the
4762 * beginning of SRAM for jumping to flash for reboot to work...
4763 */
4764 + pax_open_kernel();
4765 memset_io(omap_sram_base + omap_sram_skip, 0,
4766 omap_sram_size - omap_sram_skip);
4767 + pax_close_kernel();
4768 }
4769 diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
4770 index ce6d763..cfea917 100644
4771 --- a/arch/arm/plat-samsung/include/plat/dma-ops.h
4772 +++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
4773 @@ -47,7 +47,7 @@ struct samsung_dma_ops {
4774 int (*started)(unsigned ch);
4775 int (*flush)(unsigned ch);
4776 int (*stop)(unsigned ch);
4777 -};
4778 +} __no_const;
4779
4780 extern void *samsung_dmadev_get_ops(void);
4781 extern void *s3c_dma_get_ops(void);
4782 diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
4783 index 66eb764..b529b84 100644
4784 --- a/arch/arm64/include/asm/barrier.h
4785 +++ b/arch/arm64/include/asm/barrier.h
4786 @@ -41,7 +41,7 @@
4787 do { \
4788 compiletime_assert_atomic_type(*p); \
4789 smp_mb(); \
4790 - ACCESS_ONCE(*p) = (v); \
4791 + ACCESS_ONCE_RW(*p) = (v); \
4792 } while (0)
4793
4794 #define smp_load_acquire(p) \
4795 diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
4796 index 3bf8f4e..5dd5491 100644
4797 --- a/arch/arm64/include/asm/uaccess.h
4798 +++ b/arch/arm64/include/asm/uaccess.h
4799 @@ -99,6 +99,7 @@ static inline void set_fs(mm_segment_t fs)
4800 flag; \
4801 })
4802
4803 +#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
4804 #define access_ok(type, addr, size) __range_ok(addr, size)
4805 #define user_addr_max get_fs
4806
4807 diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
4808 index c3a58a1..78fbf54 100644
4809 --- a/arch/avr32/include/asm/cache.h
4810 +++ b/arch/avr32/include/asm/cache.h
4811 @@ -1,8 +1,10 @@
4812 #ifndef __ASM_AVR32_CACHE_H
4813 #define __ASM_AVR32_CACHE_H
4814
4815 +#include <linux/const.h>
4816 +
4817 #define L1_CACHE_SHIFT 5
4818 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4819 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4820
4821 /*
4822 * Memory returned by kmalloc() may be used for DMA, so we must make
4823 diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
4824 index d232888..87c8df1 100644
4825 --- a/arch/avr32/include/asm/elf.h
4826 +++ b/arch/avr32/include/asm/elf.h
4827 @@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
4828 the loader. We need to make sure that it is out of the way of the program
4829 that it will "exec", and that there is sufficient room for the brk. */
4830
4831 -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
4832 +#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
4833
4834 +#ifdef CONFIG_PAX_ASLR
4835 +#define PAX_ELF_ET_DYN_BASE 0x00001000UL
4836 +
4837 +#define PAX_DELTA_MMAP_LEN 15
4838 +#define PAX_DELTA_STACK_LEN 15
4839 +#endif
4840
4841 /* This yields a mask that user programs can use to figure out what
4842 instruction set this CPU supports. This could be done in user space,
4843 diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
4844 index 479330b..53717a8 100644
4845 --- a/arch/avr32/include/asm/kmap_types.h
4846 +++ b/arch/avr32/include/asm/kmap_types.h
4847 @@ -2,9 +2,9 @@
4848 #define __ASM_AVR32_KMAP_TYPES_H
4849
4850 #ifdef CONFIG_DEBUG_HIGHMEM
4851 -# define KM_TYPE_NR 29
4852 +# define KM_TYPE_NR 30
4853 #else
4854 -# define KM_TYPE_NR 14
4855 +# define KM_TYPE_NR 15
4856 #endif
4857
4858 #endif /* __ASM_AVR32_KMAP_TYPES_H */
4859 diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
4860 index 0eca933..eb78c7b 100644
4861 --- a/arch/avr32/mm/fault.c
4862 +++ b/arch/avr32/mm/fault.c
4863 @@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
4864
4865 int exception_trace = 1;
4866
4867 +#ifdef CONFIG_PAX_PAGEEXEC
4868 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
4869 +{
4870 + unsigned long i;
4871 +
4872 + printk(KERN_ERR "PAX: bytes at PC: ");
4873 + for (i = 0; i < 20; i++) {
4874 + unsigned char c;
4875 + if (get_user(c, (unsigned char *)pc+i))
4876 + printk(KERN_CONT "???????? ");
4877 + else
4878 + printk(KERN_CONT "%02x ", c);
4879 + }
4880 + printk("\n");
4881 +}
4882 +#endif
4883 +
4884 /*
4885 * This routine handles page faults. It determines the address and the
4886 * problem, and then passes it off to one of the appropriate routines.
4887 @@ -176,6 +193,16 @@ bad_area:
4888 up_read(&mm->mmap_sem);
4889
4890 if (user_mode(regs)) {
4891 +
4892 +#ifdef CONFIG_PAX_PAGEEXEC
4893 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
4894 + if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
4895 + pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
4896 + do_group_exit(SIGKILL);
4897 + }
4898 + }
4899 +#endif
4900 +
4901 if (exception_trace && printk_ratelimit())
4902 printk("%s%s[%d]: segfault at %08lx pc %08lx "
4903 "sp %08lx ecr %lu\n",
4904 diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
4905 index 568885a..f8008df 100644
4906 --- a/arch/blackfin/include/asm/cache.h
4907 +++ b/arch/blackfin/include/asm/cache.h
4908 @@ -7,6 +7,7 @@
4909 #ifndef __ARCH_BLACKFIN_CACHE_H
4910 #define __ARCH_BLACKFIN_CACHE_H
4911
4912 +#include <linux/const.h>
4913 #include <linux/linkage.h> /* for asmlinkage */
4914
4915 /*
4916 @@ -14,7 +15,7 @@
4917 * Blackfin loads 32 bytes for cache
4918 */
4919 #define L1_CACHE_SHIFT 5
4920 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4921 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4922 #define SMP_CACHE_BYTES L1_CACHE_BYTES
4923
4924 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
4925 diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
4926 index aea2718..3639a60 100644
4927 --- a/arch/cris/include/arch-v10/arch/cache.h
4928 +++ b/arch/cris/include/arch-v10/arch/cache.h
4929 @@ -1,8 +1,9 @@
4930 #ifndef _ASM_ARCH_CACHE_H
4931 #define _ASM_ARCH_CACHE_H
4932
4933 +#include <linux/const.h>
4934 /* Etrax 100LX have 32-byte cache-lines. */
4935 -#define L1_CACHE_BYTES 32
4936 #define L1_CACHE_SHIFT 5
4937 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4938
4939 #endif /* _ASM_ARCH_CACHE_H */
4940 diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
4941 index 7caf25d..ee65ac5 100644
4942 --- a/arch/cris/include/arch-v32/arch/cache.h
4943 +++ b/arch/cris/include/arch-v32/arch/cache.h
4944 @@ -1,11 +1,12 @@
4945 #ifndef _ASM_CRIS_ARCH_CACHE_H
4946 #define _ASM_CRIS_ARCH_CACHE_H
4947
4948 +#include <linux/const.h>
4949 #include <arch/hwregs/dma.h>
4950
4951 /* A cache-line is 32 bytes. */
4952 -#define L1_CACHE_BYTES 32
4953 #define L1_CACHE_SHIFT 5
4954 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4955
4956 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
4957
4958 diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
4959 index b86329d..6709906 100644
4960 --- a/arch/frv/include/asm/atomic.h
4961 +++ b/arch/frv/include/asm/atomic.h
4962 @@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v)
4963 #define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter))
4964 #define atomic64_xchg(v, new) (__xchg_64(new, &(v)->counter))
4965
4966 +#define atomic64_read_unchecked(v) atomic64_read(v)
4967 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
4968 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
4969 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
4970 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
4971 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
4972 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
4973 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
4974 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
4975 +
4976 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
4977 {
4978 int c, old;
4979 diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
4980 index 2797163..c2a401d 100644
4981 --- a/arch/frv/include/asm/cache.h
4982 +++ b/arch/frv/include/asm/cache.h
4983 @@ -12,10 +12,11 @@
4984 #ifndef __ASM_CACHE_H
4985 #define __ASM_CACHE_H
4986
4987 +#include <linux/const.h>
4988
4989 /* bytes per L1 cache line */
4990 #define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT)
4991 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4992 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4993
4994 #define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
4995 #define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
4996 diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
4997 index 43901f2..0d8b865 100644
4998 --- a/arch/frv/include/asm/kmap_types.h
4999 +++ b/arch/frv/include/asm/kmap_types.h
5000 @@ -2,6 +2,6 @@
5001 #ifndef _ASM_KMAP_TYPES_H
5002 #define _ASM_KMAP_TYPES_H
5003
5004 -#define KM_TYPE_NR 17
5005 +#define KM_TYPE_NR 18
5006
5007 #endif
5008 diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
5009 index 836f147..4cf23f5 100644
5010 --- a/arch/frv/mm/elf-fdpic.c
5011 +++ b/arch/frv/mm/elf-fdpic.c
5012 @@ -61,6 +61,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5013 {
5014 struct vm_area_struct *vma;
5015 struct vm_unmapped_area_info info;
5016 + unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
5017
5018 if (len > TASK_SIZE)
5019 return -ENOMEM;
5020 @@ -73,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5021 if (addr) {
5022 addr = PAGE_ALIGN(addr);
5023 vma = find_vma(current->mm, addr);
5024 - if (TASK_SIZE - len >= addr &&
5025 - (!vma || addr + len <= vma->vm_start))
5026 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
5027 goto success;
5028 }
5029
5030 @@ -85,6 +85,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5031 info.high_limit = (current->mm->start_stack - 0x00200000);
5032 info.align_mask = 0;
5033 info.align_offset = 0;
5034 + info.threadstack_offset = offset;
5035 addr = vm_unmapped_area(&info);
5036 if (!(addr & ~PAGE_MASK))
5037 goto success;
5038 diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
5039 index f4ca594..adc72fd6 100644
5040 --- a/arch/hexagon/include/asm/cache.h
5041 +++ b/arch/hexagon/include/asm/cache.h
5042 @@ -21,9 +21,11 @@
5043 #ifndef __ASM_CACHE_H
5044 #define __ASM_CACHE_H
5045
5046 +#include <linux/const.h>
5047 +
5048 /* Bytes per L1 cache line */
5049 -#define L1_CACHE_SHIFT (5)
5050 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5051 +#define L1_CACHE_SHIFT 5
5052 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5053
5054 #define __cacheline_aligned __aligned(L1_CACHE_BYTES)
5055 #define ____cacheline_aligned __aligned(L1_CACHE_BYTES)
5056 diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
5057 index 12c3afe..b1abab2 100644
5058 --- a/arch/ia64/Kconfig
5059 +++ b/arch/ia64/Kconfig
5060 @@ -546,6 +546,7 @@ source "drivers/sn/Kconfig"
5061 config KEXEC
5062 bool "kexec system call"
5063 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
5064 + depends on !GRKERNSEC_KMEM
5065 help
5066 kexec is a system call that implements the ability to shutdown your
5067 current kernel, and to start another kernel. It is like a reboot
5068 diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
5069 index 6e6fe18..a6ae668 100644
5070 --- a/arch/ia64/include/asm/atomic.h
5071 +++ b/arch/ia64/include/asm/atomic.h
5072 @@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
5073 #define atomic64_inc(v) atomic64_add(1, (v))
5074 #define atomic64_dec(v) atomic64_sub(1, (v))
5075
5076 +#define atomic64_read_unchecked(v) atomic64_read(v)
5077 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
5078 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
5079 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
5080 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
5081 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
5082 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
5083 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
5084 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
5085 +
5086 /* Atomic operations are already serializing */
5087 #define smp_mb__before_atomic_dec() barrier()
5088 #define smp_mb__after_atomic_dec() barrier()
5089 diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
5090 index d0a69aa..142f878 100644
5091 --- a/arch/ia64/include/asm/barrier.h
5092 +++ b/arch/ia64/include/asm/barrier.h
5093 @@ -64,7 +64,7 @@
5094 do { \
5095 compiletime_assert_atomic_type(*p); \
5096 barrier(); \
5097 - ACCESS_ONCE(*p) = (v); \
5098 + ACCESS_ONCE_RW(*p) = (v); \
5099 } while (0)
5100
5101 #define smp_load_acquire(p) \
5102 diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
5103 index 988254a..e1ee885 100644
5104 --- a/arch/ia64/include/asm/cache.h
5105 +++ b/arch/ia64/include/asm/cache.h
5106 @@ -1,6 +1,7 @@
5107 #ifndef _ASM_IA64_CACHE_H
5108 #define _ASM_IA64_CACHE_H
5109
5110 +#include <linux/const.h>
5111
5112 /*
5113 * Copyright (C) 1998-2000 Hewlett-Packard Co
5114 @@ -9,7 +10,7 @@
5115
5116 /* Bytes per L1 (data) cache line. */
5117 #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT
5118 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5119 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5120
5121 #ifdef CONFIG_SMP
5122 # define SMP_CACHE_SHIFT L1_CACHE_SHIFT
5123 diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
5124 index 5a83c5c..4d7f553 100644
5125 --- a/arch/ia64/include/asm/elf.h
5126 +++ b/arch/ia64/include/asm/elf.h
5127 @@ -42,6 +42,13 @@
5128 */
5129 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL)
5130
5131 +#ifdef CONFIG_PAX_ASLR
5132 +#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
5133 +
5134 +#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
5135 +#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
5136 +#endif
5137 +
5138 #define PT_IA_64_UNWIND 0x70000001
5139
5140 /* IA-64 relocations: */
5141 diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
5142 index 5767cdf..7462574 100644
5143 --- a/arch/ia64/include/asm/pgalloc.h
5144 +++ b/arch/ia64/include/asm/pgalloc.h
5145 @@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
5146 pgd_val(*pgd_entry) = __pa(pud);
5147 }
5148
5149 +static inline void
5150 +pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
5151 +{
5152 + pgd_populate(mm, pgd_entry, pud);
5153 +}
5154 +
5155 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
5156 {
5157 return quicklist_alloc(0, GFP_KERNEL, NULL);
5158 @@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
5159 pud_val(*pud_entry) = __pa(pmd);
5160 }
5161
5162 +static inline void
5163 +pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
5164 +{
5165 + pud_populate(mm, pud_entry, pmd);
5166 +}
5167 +
5168 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
5169 {
5170 return quicklist_alloc(0, GFP_KERNEL, NULL);
5171 diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
5172 index 7935115..c0eca6a 100644
5173 --- a/arch/ia64/include/asm/pgtable.h
5174 +++ b/arch/ia64/include/asm/pgtable.h
5175 @@ -12,7 +12,7 @@
5176 * David Mosberger-Tang <davidm@hpl.hp.com>
5177 */
5178
5179 -
5180 +#include <linux/const.h>
5181 #include <asm/mman.h>
5182 #include <asm/page.h>
5183 #include <asm/processor.h>
5184 @@ -142,6 +142,17 @@
5185 #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5186 #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5187 #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
5188 +
5189 +#ifdef CONFIG_PAX_PAGEEXEC
5190 +# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
5191 +# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5192 +# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5193 +#else
5194 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
5195 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
5196 +# define PAGE_COPY_NOEXEC PAGE_COPY
5197 +#endif
5198 +
5199 #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
5200 #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX)
5201 #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
5202 diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
5203 index 45698cd..e8e2dbc 100644
5204 --- a/arch/ia64/include/asm/spinlock.h
5205 +++ b/arch/ia64/include/asm/spinlock.h
5206 @@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
5207 unsigned short *p = (unsigned short *)&lock->lock + 1, tmp;
5208
5209 asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
5210 - ACCESS_ONCE(*p) = (tmp + 2) & ~1;
5211 + ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
5212 }
5213
5214 static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
5215 diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
5216 index 449c8c0..3d4b1e9 100644
5217 --- a/arch/ia64/include/asm/uaccess.h
5218 +++ b/arch/ia64/include/asm/uaccess.h
5219 @@ -70,6 +70,7 @@
5220 && ((segment).seg == KERNEL_DS.seg \
5221 || likely(REGION_OFFSET((unsigned long) (addr)) < RGN_MAP_LIMIT))); \
5222 })
5223 +#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
5224 #define access_ok(type, addr, size) __access_ok((addr), (size), get_fs())
5225
5226 /*
5227 @@ -240,12 +241,24 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
5228 static inline unsigned long
5229 __copy_to_user (void __user *to, const void *from, unsigned long count)
5230 {
5231 + if (count > INT_MAX)
5232 + return count;
5233 +
5234 + if (!__builtin_constant_p(count))
5235 + check_object_size(from, count, true);
5236 +
5237 return __copy_user(to, (__force void __user *) from, count);
5238 }
5239
5240 static inline unsigned long
5241 __copy_from_user (void *to, const void __user *from, unsigned long count)
5242 {
5243 + if (count > INT_MAX)
5244 + return count;
5245 +
5246 + if (!__builtin_constant_p(count))
5247 + check_object_size(to, count, false);
5248 +
5249 return __copy_user((__force void __user *) to, from, count);
5250 }
5251
5252 @@ -255,10 +268,13 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
5253 ({ \
5254 void __user *__cu_to = (to); \
5255 const void *__cu_from = (from); \
5256 - long __cu_len = (n); \
5257 + unsigned long __cu_len = (n); \
5258 \
5259 - if (__access_ok(__cu_to, __cu_len, get_fs())) \
5260 + if (__cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) { \
5261 + if (!__builtin_constant_p(n)) \
5262 + check_object_size(__cu_from, __cu_len, true); \
5263 __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \
5264 + } \
5265 __cu_len; \
5266 })
5267
5268 @@ -266,11 +282,14 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
5269 ({ \
5270 void *__cu_to = (to); \
5271 const void __user *__cu_from = (from); \
5272 - long __cu_len = (n); \
5273 + unsigned long __cu_len = (n); \
5274 \
5275 __chk_user_ptr(__cu_from); \
5276 - if (__access_ok(__cu_from, __cu_len, get_fs())) \
5277 + if (__cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) { \
5278 + if (!__builtin_constant_p(n)) \
5279 + check_object_size(__cu_to, __cu_len, false); \
5280 __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \
5281 + } \
5282 __cu_len; \
5283 })
5284
5285 diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
5286 index 24603be..948052d 100644
5287 --- a/arch/ia64/kernel/module.c
5288 +++ b/arch/ia64/kernel/module.c
5289 @@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt)
5290 void
5291 module_free (struct module *mod, void *module_region)
5292 {
5293 - if (mod && mod->arch.init_unw_table &&
5294 - module_region == mod->module_init) {
5295 + if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
5296 unw_remove_unwind_table(mod->arch.init_unw_table);
5297 mod->arch.init_unw_table = NULL;
5298 }
5299 @@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
5300 }
5301
5302 static inline int
5303 +in_init_rx (const struct module *mod, uint64_t addr)
5304 +{
5305 + return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
5306 +}
5307 +
5308 +static inline int
5309 +in_init_rw (const struct module *mod, uint64_t addr)
5310 +{
5311 + return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
5312 +}
5313 +
5314 +static inline int
5315 in_init (const struct module *mod, uint64_t addr)
5316 {
5317 - return addr - (uint64_t) mod->module_init < mod->init_size;
5318 + return in_init_rx(mod, addr) || in_init_rw(mod, addr);
5319 +}
5320 +
5321 +static inline int
5322 +in_core_rx (const struct module *mod, uint64_t addr)
5323 +{
5324 + return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
5325 +}
5326 +
5327 +static inline int
5328 +in_core_rw (const struct module *mod, uint64_t addr)
5329 +{
5330 + return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
5331 }
5332
5333 static inline int
5334 in_core (const struct module *mod, uint64_t addr)
5335 {
5336 - return addr - (uint64_t) mod->module_core < mod->core_size;
5337 + return in_core_rx(mod, addr) || in_core_rw(mod, addr);
5338 }
5339
5340 static inline int
5341 @@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
5342 break;
5343
5344 case RV_BDREL:
5345 - val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
5346 + if (in_init_rx(mod, val))
5347 + val -= (uint64_t) mod->module_init_rx;
5348 + else if (in_init_rw(mod, val))
5349 + val -= (uint64_t) mod->module_init_rw;
5350 + else if (in_core_rx(mod, val))
5351 + val -= (uint64_t) mod->module_core_rx;
5352 + else if (in_core_rw(mod, val))
5353 + val -= (uint64_t) mod->module_core_rw;
5354 break;
5355
5356 case RV_LTV:
5357 @@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
5358 * addresses have been selected...
5359 */
5360 uint64_t gp;
5361 - if (mod->core_size > MAX_LTOFF)
5362 + if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
5363 /*
5364 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
5365 * at the end of the module.
5366 */
5367 - gp = mod->core_size - MAX_LTOFF / 2;
5368 + gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
5369 else
5370 - gp = mod->core_size / 2;
5371 - gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
5372 + gp = (mod->core_size_rx + mod->core_size_rw) / 2;
5373 + gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
5374 mod->arch.gp = gp;
5375 DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
5376 }
5377 diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
5378 index c39c3cd..3c77738 100644
5379 --- a/arch/ia64/kernel/palinfo.c
5380 +++ b/arch/ia64/kernel/palinfo.c
5381 @@ -980,7 +980,7 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
5382 return NOTIFY_OK;
5383 }
5384
5385 -static struct notifier_block __refdata palinfo_cpu_notifier =
5386 +static struct notifier_block palinfo_cpu_notifier =
5387 {
5388 .notifier_call = palinfo_cpu_callback,
5389 .priority = 0,
5390 diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
5391 index 41e33f8..65180b2a 100644
5392 --- a/arch/ia64/kernel/sys_ia64.c
5393 +++ b/arch/ia64/kernel/sys_ia64.c
5394 @@ -28,6 +28,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5395 unsigned long align_mask = 0;
5396 struct mm_struct *mm = current->mm;
5397 struct vm_unmapped_area_info info;
5398 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
5399
5400 if (len > RGN_MAP_LIMIT)
5401 return -ENOMEM;
5402 @@ -43,6 +44,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5403 if (REGION_NUMBER(addr) == RGN_HPAGE)
5404 addr = 0;
5405 #endif
5406 +
5407 +#ifdef CONFIG_PAX_RANDMMAP
5408 + if (mm->pax_flags & MF_PAX_RANDMMAP)
5409 + addr = mm->free_area_cache;
5410 + else
5411 +#endif
5412 +
5413 if (!addr)
5414 addr = TASK_UNMAPPED_BASE;
5415
5416 @@ -61,6 +69,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5417 info.high_limit = TASK_SIZE;
5418 info.align_mask = align_mask;
5419 info.align_offset = 0;
5420 + info.threadstack_offset = offset;
5421 return vm_unmapped_area(&info);
5422 }
5423
5424 diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
5425 index 84f8a52..7c76178 100644
5426 --- a/arch/ia64/kernel/vmlinux.lds.S
5427 +++ b/arch/ia64/kernel/vmlinux.lds.S
5428 @@ -192,7 +192,7 @@ SECTIONS {
5429 /* Per-cpu data: */
5430 . = ALIGN(PERCPU_PAGE_SIZE);
5431 PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
5432 - __phys_per_cpu_start = __per_cpu_load;
5433 + __phys_per_cpu_start = per_cpu_load;
5434 /*
5435 * ensure percpu data fits
5436 * into percpu page size
5437 diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
5438 index 7225dad..2a7c8256 100644
5439 --- a/arch/ia64/mm/fault.c
5440 +++ b/arch/ia64/mm/fault.c
5441 @@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
5442 return pte_present(pte);
5443 }
5444
5445 +#ifdef CONFIG_PAX_PAGEEXEC
5446 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
5447 +{
5448 + unsigned long i;
5449 +
5450 + printk(KERN_ERR "PAX: bytes at PC: ");
5451 + for (i = 0; i < 8; i++) {
5452 + unsigned int c;
5453 + if (get_user(c, (unsigned int *)pc+i))
5454 + printk(KERN_CONT "???????? ");
5455 + else
5456 + printk(KERN_CONT "%08x ", c);
5457 + }
5458 + printk("\n");
5459 +}
5460 +#endif
5461 +
5462 # define VM_READ_BIT 0
5463 # define VM_WRITE_BIT 1
5464 # define VM_EXEC_BIT 2
5465 @@ -151,8 +168,21 @@ retry:
5466 if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
5467 goto bad_area;
5468
5469 - if ((vma->vm_flags & mask) != mask)
5470 + if ((vma->vm_flags & mask) != mask) {
5471 +
5472 +#ifdef CONFIG_PAX_PAGEEXEC
5473 + if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
5474 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
5475 + goto bad_area;
5476 +
5477 + up_read(&mm->mmap_sem);
5478 + pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
5479 + do_group_exit(SIGKILL);
5480 + }
5481 +#endif
5482 +
5483 goto bad_area;
5484 + }
5485
5486 /*
5487 * If for any reason at all we couldn't handle the fault, make
5488 diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
5489 index 76069c1..c2aa816 100644
5490 --- a/arch/ia64/mm/hugetlbpage.c
5491 +++ b/arch/ia64/mm/hugetlbpage.c
5492 @@ -149,6 +149,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
5493 unsigned long pgoff, unsigned long flags)
5494 {
5495 struct vm_unmapped_area_info info;
5496 + unsigned long offset = gr_rand_threadstack_offset(current->mm, file, flags);
5497
5498 if (len > RGN_MAP_LIMIT)
5499 return -ENOMEM;
5500 @@ -172,6 +173,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
5501 info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
5502 info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
5503 info.align_offset = 0;
5504 + info.threadstack_offset = offset;
5505 return vm_unmapped_area(&info);
5506 }
5507
5508 diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
5509 index 25c3502..560dae7 100644
5510 --- a/arch/ia64/mm/init.c
5511 +++ b/arch/ia64/mm/init.c
5512 @@ -120,6 +120,19 @@ ia64_init_addr_space (void)
5513 vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
5514 vma->vm_end = vma->vm_start + PAGE_SIZE;
5515 vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
5516 +
5517 +#ifdef CONFIG_PAX_PAGEEXEC
5518 + if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
5519 + vma->vm_flags &= ~VM_EXEC;
5520 +
5521 +#ifdef CONFIG_PAX_MPROTECT
5522 + if (current->mm->pax_flags & MF_PAX_MPROTECT)
5523 + vma->vm_flags &= ~VM_MAYEXEC;
5524 +#endif
5525 +
5526 + }
5527 +#endif
5528 +
5529 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
5530 down_write(&current->mm->mmap_sem);
5531 if (insert_vm_struct(current->mm, vma)) {
5532 diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
5533 index 40b3ee9..8c2c112 100644
5534 --- a/arch/m32r/include/asm/cache.h
5535 +++ b/arch/m32r/include/asm/cache.h
5536 @@ -1,8 +1,10 @@
5537 #ifndef _ASM_M32R_CACHE_H
5538 #define _ASM_M32R_CACHE_H
5539
5540 +#include <linux/const.h>
5541 +
5542 /* L1 cache line size */
5543 #define L1_CACHE_SHIFT 4
5544 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5545 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5546
5547 #endif /* _ASM_M32R_CACHE_H */
5548 diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
5549 index 82abd15..d95ae5d 100644
5550 --- a/arch/m32r/lib/usercopy.c
5551 +++ b/arch/m32r/lib/usercopy.c
5552 @@ -14,6 +14,9 @@
5553 unsigned long
5554 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
5555 {
5556 + if ((long)n < 0)
5557 + return n;
5558 +
5559 prefetch(from);
5560 if (access_ok(VERIFY_WRITE, to, n))
5561 __copy_user(to,from,n);
5562 @@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
5563 unsigned long
5564 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
5565 {
5566 + if ((long)n < 0)
5567 + return n;
5568 +
5569 prefetchw(to);
5570 if (access_ok(VERIFY_READ, from, n))
5571 __copy_user_zeroing(to,from,n);
5572 diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
5573 index 0395c51..5f26031 100644
5574 --- a/arch/m68k/include/asm/cache.h
5575 +++ b/arch/m68k/include/asm/cache.h
5576 @@ -4,9 +4,11 @@
5577 #ifndef __ARCH_M68K_CACHE_H
5578 #define __ARCH_M68K_CACHE_H
5579
5580 +#include <linux/const.h>
5581 +
5582 /* bytes per L1 cache line */
5583 #define L1_CACHE_SHIFT 4
5584 -#define L1_CACHE_BYTES (1<< L1_CACHE_SHIFT)
5585 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5586
5587 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
5588
5589 diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
5590 index 2d6f0de..de5f5ac 100644
5591 --- a/arch/metag/include/asm/barrier.h
5592 +++ b/arch/metag/include/asm/barrier.h
5593 @@ -89,7 +89,7 @@ static inline void fence(void)
5594 do { \
5595 compiletime_assert_atomic_type(*p); \
5596 smp_mb(); \
5597 - ACCESS_ONCE(*p) = (v); \
5598 + ACCESS_ONCE_RW(*p) = (v); \
5599 } while (0)
5600
5601 #define smp_load_acquire(p) \
5602 diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
5603 index 3c52fa6..11b2ad8 100644
5604 --- a/arch/metag/mm/hugetlbpage.c
5605 +++ b/arch/metag/mm/hugetlbpage.c
5606 @@ -200,6 +200,7 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
5607 info.high_limit = TASK_SIZE;
5608 info.align_mask = PAGE_MASK & HUGEPT_MASK;
5609 info.align_offset = 0;
5610 + info.threadstack_offset = 0;
5611 return vm_unmapped_area(&info);
5612 }
5613
5614 diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
5615 index 4efe96a..60e8699 100644
5616 --- a/arch/microblaze/include/asm/cache.h
5617 +++ b/arch/microblaze/include/asm/cache.h
5618 @@ -13,11 +13,12 @@
5619 #ifndef _ASM_MICROBLAZE_CACHE_H
5620 #define _ASM_MICROBLAZE_CACHE_H
5621
5622 +#include <linux/const.h>
5623 #include <asm/registers.h>
5624
5625 #define L1_CACHE_SHIFT 5
5626 /* word-granular cache in microblaze */
5627 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5628 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5629
5630 #define SMP_CACHE_BYTES L1_CACHE_BYTES
5631
5632 diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
5633 index 5cd695f..9a24ad0 100644
5634 --- a/arch/mips/Kconfig
5635 +++ b/arch/mips/Kconfig
5636 @@ -2395,6 +2395,7 @@ source "kernel/Kconfig.preempt"
5637
5638 config KEXEC
5639 bool "Kexec system call"
5640 + depends on !GRKERNSEC_KMEM
5641 help
5642 kexec is a system call that implements the ability to shutdown your
5643 current kernel, and to start another kernel. It is like a reboot
5644 diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
5645 index 02f2444..506969c 100644
5646 --- a/arch/mips/cavium-octeon/dma-octeon.c
5647 +++ b/arch/mips/cavium-octeon/dma-octeon.c
5648 @@ -199,7 +199,7 @@ static void octeon_dma_free_coherent(struct device *dev, size_t size,
5649 if (dma_release_from_coherent(dev, order, vaddr))
5650 return;
5651
5652 - swiotlb_free_coherent(dev, size, vaddr, dma_handle);
5653 + swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
5654 }
5655
5656 static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
5657 diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
5658 index e8eb3d5..2e665d1 100644
5659 --- a/arch/mips/include/asm/atomic.h
5660 +++ b/arch/mips/include/asm/atomic.h
5661 @@ -21,15 +21,39 @@
5662 #include <asm/cmpxchg.h>
5663 #include <asm/war.h>
5664
5665 +#ifdef CONFIG_GENERIC_ATOMIC64
5666 +#include <asm-generic/atomic64.h>
5667 +#endif
5668 +
5669 #define ATOMIC_INIT(i) { (i) }
5670
5671 +#ifdef CONFIG_64BIT
5672 +#define _ASM_EXTABLE(from, to) \
5673 +" .section __ex_table,\"a\"\n" \
5674 +" .dword " #from ", " #to"\n" \
5675 +" .previous\n"
5676 +#else
5677 +#define _ASM_EXTABLE(from, to) \
5678 +" .section __ex_table,\"a\"\n" \
5679 +" .word " #from ", " #to"\n" \
5680 +" .previous\n"
5681 +#endif
5682 +
5683 /*
5684 * atomic_read - read atomic variable
5685 * @v: pointer of type atomic_t
5686 *
5687 * Atomically reads the value of @v.
5688 */
5689 -#define atomic_read(v) (*(volatile int *)&(v)->counter)
5690 +static inline int atomic_read(const atomic_t *v)
5691 +{
5692 + return (*(volatile const int *) &v->counter);
5693 +}
5694 +
5695 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
5696 +{
5697 + return (*(volatile const int *) &v->counter);
5698 +}
5699
5700 /*
5701 * atomic_set - set atomic variable
5702 @@ -38,7 +62,15 @@
5703 *
5704 * Atomically sets the value of @v to @i.
5705 */
5706 -#define atomic_set(v, i) ((v)->counter = (i))
5707 +static inline void atomic_set(atomic_t *v, int i)
5708 +{
5709 + v->counter = i;
5710 +}
5711 +
5712 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
5713 +{
5714 + v->counter = i;
5715 +}
5716
5717 /*
5718 * atomic_add - add integer to atomic variable
5719 @@ -47,7 +79,67 @@
5720 *
5721 * Atomically adds @i to @v.
5722 */
5723 -static __inline__ void atomic_add(int i, atomic_t * v)
5724 +static __inline__ void atomic_add(int i, atomic_t *v)
5725 +{
5726 + int temp;
5727 +
5728 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
5729 + __asm__ __volatile__(
5730 + " .set mips3 \n"
5731 + "1: ll %0, %1 # atomic_add \n"
5732 +#ifdef CONFIG_PAX_REFCOUNT
5733 + /* Exception on overflow. */
5734 + "2: add %0, %2 \n"
5735 +#else
5736 + " addu %0, %2 \n"
5737 +#endif
5738 + " sc %0, %1 \n"
5739 + " beqzl %0, 1b \n"
5740 +#ifdef CONFIG_PAX_REFCOUNT
5741 + "3: \n"
5742 + _ASM_EXTABLE(2b, 3b)
5743 +#endif
5744 + " .set mips0 \n"
5745 + : "=&r" (temp), "+m" (v->counter)
5746 + : "Ir" (i));
5747 + } else if (kernel_uses_llsc) {
5748 + __asm__ __volatile__(
5749 + " .set mips3 \n"
5750 + "1: ll %0, %1 # atomic_add \n"
5751 +#ifdef CONFIG_PAX_REFCOUNT
5752 + /* Exception on overflow. */
5753 + "2: add %0, %2 \n"
5754 +#else
5755 + " addu %0, %2 \n"
5756 +#endif
5757 + " sc %0, %1 \n"
5758 + " beqz %0, 1b \n"
5759 +#ifdef CONFIG_PAX_REFCOUNT
5760 + "3: \n"
5761 + _ASM_EXTABLE(2b, 3b)
5762 +#endif
5763 + " .set mips0 \n"
5764 + : "=&r" (temp), "+m" (v->counter)
5765 + : "Ir" (i));
5766 + } else {
5767 + unsigned long flags;
5768 +
5769 + raw_local_irq_save(flags);
5770 + __asm__ __volatile__(
5771 +#ifdef CONFIG_PAX_REFCOUNT
5772 + /* Exception on overflow. */
5773 + "1: add %0, %1 \n"
5774 + "2: \n"
5775 + _ASM_EXTABLE(1b, 2b)
5776 +#else
5777 + " addu %0, %1 \n"
5778 +#endif
5779 + : "+r" (v->counter) : "Ir" (i));
5780 + raw_local_irq_restore(flags);
5781 + }
5782 +}
5783 +
5784 +static __inline__ void atomic_add_unchecked(int i, atomic_unchecked_t *v)
5785 {
5786 if (kernel_uses_llsc && R10000_LLSC_WAR) {
5787 int temp;
5788 @@ -90,7 +182,67 @@ static __inline__ void atomic_add(int i, atomic_t * v)
5789 *
5790 * Atomically subtracts @i from @v.
5791 */
5792 -static __inline__ void atomic_sub(int i, atomic_t * v)
5793 +static __inline__ void atomic_sub(int i, atomic_t *v)
5794 +{
5795 + int temp;
5796 +
5797 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
5798 + __asm__ __volatile__(
5799 + " .set mips3 \n"
5800 + "1: ll %0, %1 # atomic64_sub \n"
5801 +#ifdef CONFIG_PAX_REFCOUNT
5802 + /* Exception on overflow. */
5803 + "2: sub %0, %2 \n"
5804 +#else
5805 + " subu %0, %2 \n"
5806 +#endif
5807 + " sc %0, %1 \n"
5808 + " beqzl %0, 1b \n"
5809 +#ifdef CONFIG_PAX_REFCOUNT
5810 + "3: \n"
5811 + _ASM_EXTABLE(2b, 3b)
5812 +#endif
5813 + " .set mips0 \n"
5814 + : "=&r" (temp), "+m" (v->counter)
5815 + : "Ir" (i));
5816 + } else if (kernel_uses_llsc) {
5817 + __asm__ __volatile__(
5818 + " .set mips3 \n"
5819 + "1: ll %0, %1 # atomic64_sub \n"
5820 +#ifdef CONFIG_PAX_REFCOUNT
5821 + /* Exception on overflow. */
5822 + "2: sub %0, %2 \n"
5823 +#else
5824 + " subu %0, %2 \n"
5825 +#endif
5826 + " sc %0, %1 \n"
5827 + " beqz %0, 1b \n"
5828 +#ifdef CONFIG_PAX_REFCOUNT
5829 + "3: \n"
5830 + _ASM_EXTABLE(2b, 3b)
5831 +#endif
5832 + " .set mips0 \n"
5833 + : "=&r" (temp), "+m" (v->counter)
5834 + : "Ir" (i));
5835 + } else {
5836 + unsigned long flags;
5837 +
5838 + raw_local_irq_save(flags);
5839 + __asm__ __volatile__(
5840 +#ifdef CONFIG_PAX_REFCOUNT
5841 + /* Exception on overflow. */
5842 + "1: sub %0, %1 \n"
5843 + "2: \n"
5844 + _ASM_EXTABLE(1b, 2b)
5845 +#else
5846 + " subu %0, %1 \n"
5847 +#endif
5848 + : "+r" (v->counter) : "Ir" (i));
5849 + raw_local_irq_restore(flags);
5850 + }
5851 +}
5852 +
5853 +static __inline__ void atomic_sub_unchecked(long i, atomic_unchecked_t *v)
5854 {
5855 if (kernel_uses_llsc && R10000_LLSC_WAR) {
5856 int temp;
5857 @@ -129,7 +281,93 @@ static __inline__ void atomic_sub(int i, atomic_t * v)
5858 /*
5859 * Same as above, but return the result value
5860 */
5861 -static __inline__ int atomic_add_return(int i, atomic_t * v)
5862 +static __inline__ int atomic_add_return(int i, atomic_t *v)
5863 +{
5864 + int result;
5865 + int temp;
5866 +
5867 + smp_mb__before_llsc();
5868 +
5869 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
5870 + __asm__ __volatile__(
5871 + " .set mips3 \n"
5872 + "1: ll %1, %2 # atomic_add_return \n"
5873 +#ifdef CONFIG_PAX_REFCOUNT
5874 + "2: add %0, %1, %3 \n"
5875 +#else
5876 + " addu %0, %1, %3 \n"
5877 +#endif
5878 + " sc %0, %2 \n"
5879 + " beqzl %0, 1b \n"
5880 +#ifdef CONFIG_PAX_REFCOUNT
5881 + " b 4f \n"
5882 + " .set noreorder \n"
5883 + "3: b 5f \n"
5884 + " move %0, %1 \n"
5885 + " .set reorder \n"
5886 + _ASM_EXTABLE(2b, 3b)
5887 +#endif
5888 + "4: addu %0, %1, %3 \n"
5889 +#ifdef CONFIG_PAX_REFCOUNT
5890 + "5: \n"
5891 +#endif
5892 + " .set mips0 \n"
5893 + : "=&r" (result), "=&r" (temp), "+m" (v->counter)
5894 + : "Ir" (i));
5895 + } else if (kernel_uses_llsc) {
5896 + __asm__ __volatile__(
5897 + " .set mips3 \n"
5898 + "1: ll %1, %2 # atomic_add_return \n"
5899 +#ifdef CONFIG_PAX_REFCOUNT
5900 + "2: add %0, %1, %3 \n"
5901 +#else
5902 + " addu %0, %1, %3 \n"
5903 +#endif
5904 + " sc %0, %2 \n"
5905 + " bnez %0, 4f \n"
5906 + " b 1b \n"
5907 +#ifdef CONFIG_PAX_REFCOUNT
5908 + " .set noreorder \n"
5909 + "3: b 5f \n"
5910 + " move %0, %1 \n"
5911 + " .set reorder \n"
5912 + _ASM_EXTABLE(2b, 3b)
5913 +#endif
5914 + "4: addu %0, %1, %3 \n"
5915 +#ifdef CONFIG_PAX_REFCOUNT
5916 + "5: \n"
5917 +#endif
5918 + " .set mips0 \n"
5919 + : "=&r" (result), "=&r" (temp), "+m" (v->counter)
5920 + : "Ir" (i));
5921 + } else {
5922 + unsigned long flags;
5923 +
5924 + raw_local_irq_save(flags);
5925 + __asm__ __volatile__(
5926 + " lw %0, %1 \n"
5927 +#ifdef CONFIG_PAX_REFCOUNT
5928 + /* Exception on overflow. */
5929 + "1: add %0, %2 \n"
5930 +#else
5931 + " addu %0, %2 \n"
5932 +#endif
5933 + " sw %0, %1 \n"
5934 +#ifdef CONFIG_PAX_REFCOUNT
5935 + /* Note: Dest reg is not modified on overflow */
5936 + "2: \n"
5937 + _ASM_EXTABLE(1b, 2b)
5938 +#endif
5939 + : "=&r" (result), "+m" (v->counter) : "Ir" (i));
5940 + raw_local_irq_restore(flags);
5941 + }
5942 +
5943 + smp_llsc_mb();
5944 +
5945 + return result;
5946 +}
5947 +
5948 +static __inline__ int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
5949 {
5950 int result;
5951
5952 @@ -178,7 +416,93 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
5953 return result;
5954 }
5955
5956 -static __inline__ int atomic_sub_return(int i, atomic_t * v)
5957 +static __inline__ int atomic_sub_return(int i, atomic_t *v)
5958 +{
5959 + int result;
5960 + int temp;
5961 +
5962 + smp_mb__before_llsc();
5963 +
5964 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
5965 + __asm__ __volatile__(
5966 + " .set mips3 \n"
5967 + "1: ll %1, %2 # atomic_sub_return \n"
5968 +#ifdef CONFIG_PAX_REFCOUNT
5969 + "2: sub %0, %1, %3 \n"
5970 +#else
5971 + " subu %0, %1, %3 \n"
5972 +#endif
5973 + " sc %0, %2 \n"
5974 + " beqzl %0, 1b \n"
5975 +#ifdef CONFIG_PAX_REFCOUNT
5976 + " b 4f \n"
5977 + " .set noreorder \n"
5978 + "3: b 5f \n"
5979 + " move %0, %1 \n"
5980 + " .set reorder \n"
5981 + _ASM_EXTABLE(2b, 3b)
5982 +#endif
5983 + "4: subu %0, %1, %3 \n"
5984 +#ifdef CONFIG_PAX_REFCOUNT
5985 + "5: \n"
5986 +#endif
5987 + " .set mips0 \n"
5988 + : "=&r" (result), "=&r" (temp), "=m" (v->counter)
5989 + : "Ir" (i), "m" (v->counter)
5990 + : "memory");
5991 + } else if (kernel_uses_llsc) {
5992 + __asm__ __volatile__(
5993 + " .set mips3 \n"
5994 + "1: ll %1, %2 # atomic_sub_return \n"
5995 +#ifdef CONFIG_PAX_REFCOUNT
5996 + "2: sub %0, %1, %3 \n"
5997 +#else
5998 + " subu %0, %1, %3 \n"
5999 +#endif
6000 + " sc %0, %2 \n"
6001 + " bnez %0, 4f \n"
6002 + " b 1b \n"
6003 +#ifdef CONFIG_PAX_REFCOUNT
6004 + " .set noreorder \n"
6005 + "3: b 5f \n"
6006 + " move %0, %1 \n"
6007 + " .set reorder \n"
6008 + _ASM_EXTABLE(2b, 3b)
6009 +#endif
6010 + "4: subu %0, %1, %3 \n"
6011 +#ifdef CONFIG_PAX_REFCOUNT
6012 + "5: \n"
6013 +#endif
6014 + " .set mips0 \n"
6015 + : "=&r" (result), "=&r" (temp), "+m" (v->counter)
6016 + : "Ir" (i));
6017 + } else {
6018 + unsigned long flags;
6019 +
6020 + raw_local_irq_save(flags);
6021 + __asm__ __volatile__(
6022 + " lw %0, %1 \n"
6023 +#ifdef CONFIG_PAX_REFCOUNT
6024 + /* Exception on overflow. */
6025 + "1: sub %0, %2 \n"
6026 +#else
6027 + " subu %0, %2 \n"
6028 +#endif
6029 + " sw %0, %1 \n"
6030 +#ifdef CONFIG_PAX_REFCOUNT
6031 + /* Note: Dest reg is not modified on overflow */
6032 + "2: \n"
6033 + _ASM_EXTABLE(1b, 2b)
6034 +#endif
6035 + : "=&r" (result), "+m" (v->counter) : "Ir" (i));
6036 + raw_local_irq_restore(flags);
6037 + }
6038 +
6039 + smp_llsc_mb();
6040 +
6041 + return result;
6042 +}
6043 +static __inline__ int atomic_sub_return_unchecked(int i, atomic_unchecked_t *v)
6044 {
6045 int result;
6046
6047 @@ -238,7 +562,7 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
6048 * Atomically test @v and subtract @i if @v is greater or equal than @i.
6049 * The function returns the old value of @v minus @i.
6050 */
6051 -static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
6052 +static __inline__ int atomic_sub_if_positive(int i, atomic_t *v)
6053 {
6054 int result;
6055
6056 @@ -295,8 +619,26 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
6057 return result;
6058 }
6059
6060 -#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
6061 -#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
6062 +static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
6063 +{
6064 + return cmpxchg(&v->counter, old, new);
6065 +}
6066 +
6067 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old,
6068 + int new)
6069 +{
6070 + return cmpxchg(&(v->counter), old, new);
6071 +}
6072 +
6073 +static inline int atomic_xchg(atomic_t *v, int new)
6074 +{
6075 + return xchg(&v->counter, new);
6076 +}
6077 +
6078 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
6079 +{
6080 + return xchg(&(v->counter), new);
6081 +}
6082
6083 /**
6084 * __atomic_add_unless - add unless the number is a given value
6085 @@ -324,6 +666,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6086
6087 #define atomic_dec_return(v) atomic_sub_return(1, (v))
6088 #define atomic_inc_return(v) atomic_add_return(1, (v))
6089 +static __inline__ int atomic_inc_return_unchecked(atomic_unchecked_t *v)
6090 +{
6091 + return atomic_add_return_unchecked(1, v);
6092 +}
6093
6094 /*
6095 * atomic_sub_and_test - subtract value from variable and test result
6096 @@ -345,6 +691,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6097 * other cases.
6098 */
6099 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
6100 +static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
6101 +{
6102 + return atomic_add_return_unchecked(1, v) == 0;
6103 +}
6104
6105 /*
6106 * atomic_dec_and_test - decrement by 1 and test
6107 @@ -369,6 +719,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6108 * Atomically increments @v by 1.
6109 */
6110 #define atomic_inc(v) atomic_add(1, (v))
6111 +static __inline__ void atomic_inc_unchecked(atomic_unchecked_t *v)
6112 +{
6113 + atomic_add_unchecked(1, v);
6114 +}
6115
6116 /*
6117 * atomic_dec - decrement and test
6118 @@ -377,6 +731,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6119 * Atomically decrements @v by 1.
6120 */
6121 #define atomic_dec(v) atomic_sub(1, (v))
6122 +static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
6123 +{
6124 + atomic_sub_unchecked(1, v);
6125 +}
6126
6127 /*
6128 * atomic_add_negative - add and test if negative
6129 @@ -398,14 +756,30 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6130 * @v: pointer of type atomic64_t
6131 *
6132 */
6133 -#define atomic64_read(v) (*(volatile long *)&(v)->counter)
6134 +static inline long atomic64_read(const atomic64_t *v)
6135 +{
6136 + return (*(volatile const long *) &v->counter);
6137 +}
6138 +
6139 +static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
6140 +{
6141 + return (*(volatile const long *) &v->counter);
6142 +}
6143
6144 /*
6145 * atomic64_set - set atomic variable
6146 * @v: pointer of type atomic64_t
6147 * @i: required value
6148 */
6149 -#define atomic64_set(v, i) ((v)->counter = (i))
6150 +static inline void atomic64_set(atomic64_t *v, long i)
6151 +{
6152 + v->counter = i;
6153 +}
6154 +
6155 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
6156 +{
6157 + v->counter = i;
6158 +}
6159
6160 /*
6161 * atomic64_add - add integer to atomic variable
6162 @@ -414,7 +788,66 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6163 *
6164 * Atomically adds @i to @v.
6165 */
6166 -static __inline__ void atomic64_add(long i, atomic64_t * v)
6167 +static __inline__ void atomic64_add(long i, atomic64_t *v)
6168 +{
6169 + long temp;
6170 +
6171 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
6172 + __asm__ __volatile__(
6173 + " .set mips3 \n"
6174 + "1: lld %0, %1 # atomic64_add \n"
6175 +#ifdef CONFIG_PAX_REFCOUNT
6176 + /* Exception on overflow. */
6177 + "2: dadd %0, %2 \n"
6178 +#else
6179 + " daddu %0, %2 \n"
6180 +#endif
6181 + " scd %0, %1 \n"
6182 + " beqzl %0, 1b \n"
6183 +#ifdef CONFIG_PAX_REFCOUNT
6184 + "3: \n"
6185 + _ASM_EXTABLE(2b, 3b)
6186 +#endif
6187 + " .set mips0 \n"
6188 + : "=&r" (temp), "+m" (v->counter)
6189 + : "Ir" (i));
6190 + } else if (kernel_uses_llsc) {
6191 + __asm__ __volatile__(
6192 + " .set mips3 \n"
6193 + "1: lld %0, %1 # atomic64_add \n"
6194 +#ifdef CONFIG_PAX_REFCOUNT
6195 + /* Exception on overflow. */
6196 + "2: dadd %0, %2 \n"
6197 +#else
6198 + " daddu %0, %2 \n"
6199 +#endif
6200 + " scd %0, %1 \n"
6201 + " beqz %0, 1b \n"
6202 +#ifdef CONFIG_PAX_REFCOUNT
6203 + "3: \n"
6204 + _ASM_EXTABLE(2b, 3b)
6205 +#endif
6206 + " .set mips0 \n"
6207 + : "=&r" (temp), "+m" (v->counter)
6208 + : "Ir" (i));
6209 + } else {
6210 + unsigned long flags;
6211 +
6212 + raw_local_irq_save(flags);
6213 + __asm__ __volatile__(
6214 +#ifdef CONFIG_PAX_REFCOUNT
6215 + /* Exception on overflow. */
6216 + "1: dadd %0, %1 \n"
6217 + "2: \n"
6218 + _ASM_EXTABLE(1b, 2b)
6219 +#else
6220 + " daddu %0, %1 \n"
6221 +#endif
6222 + : "+r" (v->counter) : "Ir" (i));
6223 + raw_local_irq_restore(flags);
6224 + }
6225 +}
6226 +static __inline__ void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
6227 {
6228 if (kernel_uses_llsc && R10000_LLSC_WAR) {
6229 long temp;
6230 @@ -457,7 +890,67 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
6231 *
6232 * Atomically subtracts @i from @v.
6233 */
6234 -static __inline__ void atomic64_sub(long i, atomic64_t * v)
6235 +static __inline__ void atomic64_sub(long i, atomic64_t *v)
6236 +{
6237 + long temp;
6238 +
6239 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
6240 + __asm__ __volatile__(
6241 + " .set mips3 \n"
6242 + "1: lld %0, %1 # atomic64_sub \n"
6243 +#ifdef CONFIG_PAX_REFCOUNT
6244 + /* Exception on overflow. */
6245 + "2: dsub %0, %2 \n"
6246 +#else
6247 + " dsubu %0, %2 \n"
6248 +#endif
6249 + " scd %0, %1 \n"
6250 + " beqzl %0, 1b \n"
6251 +#ifdef CONFIG_PAX_REFCOUNT
6252 + "3: \n"
6253 + _ASM_EXTABLE(2b, 3b)
6254 +#endif
6255 + " .set mips0 \n"
6256 + : "=&r" (temp), "+m" (v->counter)
6257 + : "Ir" (i));
6258 + } else if (kernel_uses_llsc) {
6259 + __asm__ __volatile__(
6260 + " .set mips3 \n"
6261 + "1: lld %0, %1 # atomic64_sub \n"
6262 +#ifdef CONFIG_PAX_REFCOUNT
6263 + /* Exception on overflow. */
6264 + "2: dsub %0, %2 \n"
6265 +#else
6266 + " dsubu %0, %2 \n"
6267 +#endif
6268 + " scd %0, %1 \n"
6269 + " beqz %0, 1b \n"
6270 +#ifdef CONFIG_PAX_REFCOUNT
6271 + "3: \n"
6272 + _ASM_EXTABLE(2b, 3b)
6273 +#endif
6274 + " .set mips0 \n"
6275 + : "=&r" (temp), "+m" (v->counter)
6276 + : "Ir" (i));
6277 + } else {
6278 + unsigned long flags;
6279 +
6280 + raw_local_irq_save(flags);
6281 + __asm__ __volatile__(
6282 +#ifdef CONFIG_PAX_REFCOUNT
6283 + /* Exception on overflow. */
6284 + "1: dsub %0, %1 \n"
6285 + "2: \n"
6286 + _ASM_EXTABLE(1b, 2b)
6287 +#else
6288 + " dsubu %0, %1 \n"
6289 +#endif
6290 + : "+r" (v->counter) : "Ir" (i));
6291 + raw_local_irq_restore(flags);
6292 + }
6293 +}
6294 +
6295 +static __inline__ void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
6296 {
6297 if (kernel_uses_llsc && R10000_LLSC_WAR) {
6298 long temp;
6299 @@ -496,7 +989,93 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
6300 /*
6301 * Same as above, but return the result value
6302 */
6303 -static __inline__ long atomic64_add_return(long i, atomic64_t * v)
6304 +static __inline__ long atomic64_add_return(long i, atomic64_t *v)
6305 +{
6306 + long result;
6307 + long temp;
6308 +
6309 + smp_mb__before_llsc();
6310 +
6311 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
6312 + __asm__ __volatile__(
6313 + " .set mips3 \n"
6314 + "1: lld %1, %2 # atomic64_add_return \n"
6315 +#ifdef CONFIG_PAX_REFCOUNT
6316 + "2: dadd %0, %1, %3 \n"
6317 +#else
6318 + " daddu %0, %1, %3 \n"
6319 +#endif
6320 + " scd %0, %2 \n"
6321 + " beqzl %0, 1b \n"
6322 +#ifdef CONFIG_PAX_REFCOUNT
6323 + " b 4f \n"
6324 + " .set noreorder \n"
6325 + "3: b 5f \n"
6326 + " move %0, %1 \n"
6327 + " .set reorder \n"
6328 + _ASM_EXTABLE(2b, 3b)
6329 +#endif
6330 + "4: daddu %0, %1, %3 \n"
6331 +#ifdef CONFIG_PAX_REFCOUNT
6332 + "5: \n"
6333 +#endif
6334 + " .set mips0 \n"
6335 + : "=&r" (result), "=&r" (temp), "+m" (v->counter)
6336 + : "Ir" (i));
6337 + } else if (kernel_uses_llsc) {
6338 + __asm__ __volatile__(
6339 + " .set mips3 \n"
6340 + "1: lld %1, %2 # atomic64_add_return \n"
6341 +#ifdef CONFIG_PAX_REFCOUNT
6342 + "2: dadd %0, %1, %3 \n"
6343 +#else
6344 + " daddu %0, %1, %3 \n"
6345 +#endif
6346 + " scd %0, %2 \n"
6347 + " bnez %0, 4f \n"
6348 + " b 1b \n"
6349 +#ifdef CONFIG_PAX_REFCOUNT
6350 + " .set noreorder \n"
6351 + "3: b 5f \n"
6352 + " move %0, %1 \n"
6353 + " .set reorder \n"
6354 + _ASM_EXTABLE(2b, 3b)
6355 +#endif
6356 + "4: daddu %0, %1, %3 \n"
6357 +#ifdef CONFIG_PAX_REFCOUNT
6358 + "5: \n"
6359 +#endif
6360 + " .set mips0 \n"
6361 + : "=&r" (result), "=&r" (temp), "=m" (v->counter)
6362 + : "Ir" (i), "m" (v->counter)
6363 + : "memory");
6364 + } else {
6365 + unsigned long flags;
6366 +
6367 + raw_local_irq_save(flags);
6368 + __asm__ __volatile__(
6369 + " ld %0, %1 \n"
6370 +#ifdef CONFIG_PAX_REFCOUNT
6371 + /* Exception on overflow. */
6372 + "1: dadd %0, %2 \n"
6373 +#else
6374 + " daddu %0, %2 \n"
6375 +#endif
6376 + " sd %0, %1 \n"
6377 +#ifdef CONFIG_PAX_REFCOUNT
6378 + /* Note: Dest reg is not modified on overflow */
6379 + "2: \n"
6380 + _ASM_EXTABLE(1b, 2b)
6381 +#endif
6382 + : "=&r" (result), "+m" (v->counter) : "Ir" (i));
6383 + raw_local_irq_restore(flags);
6384 + }
6385 +
6386 + smp_llsc_mb();
6387 +
6388 + return result;
6389 +}
6390 +static __inline__ long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
6391 {
6392 long result;
6393
6394 @@ -546,7 +1125,97 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
6395 return result;
6396 }
6397
6398 -static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
6399 +static __inline__ long atomic64_sub_return(long i, atomic64_t *v)
6400 +{
6401 + long result;
6402 + long temp;
6403 +
6404 + smp_mb__before_llsc();
6405 +
6406 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
6407 + long temp;
6408 +
6409 + __asm__ __volatile__(
6410 + " .set mips3 \n"
6411 + "1: lld %1, %2 # atomic64_sub_return \n"
6412 +#ifdef CONFIG_PAX_REFCOUNT
6413 + "2: dsub %0, %1, %3 \n"
6414 +#else
6415 + " dsubu %0, %1, %3 \n"
6416 +#endif
6417 + " scd %0, %2 \n"
6418 + " beqzl %0, 1b \n"
6419 +#ifdef CONFIG_PAX_REFCOUNT
6420 + " b 4f \n"
6421 + " .set noreorder \n"
6422 + "3: b 5f \n"
6423 + " move %0, %1 \n"
6424 + " .set reorder \n"
6425 + _ASM_EXTABLE(2b, 3b)
6426 +#endif
6427 + "4: dsubu %0, %1, %3 \n"
6428 +#ifdef CONFIG_PAX_REFCOUNT
6429 + "5: \n"
6430 +#endif
6431 + " .set mips0 \n"
6432 + : "=&r" (result), "=&r" (temp), "=m" (v->counter)
6433 + : "Ir" (i), "m" (v->counter)
6434 + : "memory");
6435 + } else if (kernel_uses_llsc) {
6436 + __asm__ __volatile__(
6437 + " .set mips3 \n"
6438 + "1: lld %1, %2 # atomic64_sub_return \n"
6439 +#ifdef CONFIG_PAX_REFCOUNT
6440 + "2: dsub %0, %1, %3 \n"
6441 +#else
6442 + " dsubu %0, %1, %3 \n"
6443 +#endif
6444 + " scd %0, %2 \n"
6445 + " bnez %0, 4f \n"
6446 + " b 1b \n"
6447 +#ifdef CONFIG_PAX_REFCOUNT
6448 + " .set noreorder \n"
6449 + "3: b 5f \n"
6450 + " move %0, %1 \n"
6451 + " .set reorder \n"
6452 + _ASM_EXTABLE(2b, 3b)
6453 +#endif
6454 + "4: dsubu %0, %1, %3 \n"
6455 +#ifdef CONFIG_PAX_REFCOUNT
6456 + "5: \n"
6457 +#endif
6458 + " .set mips0 \n"
6459 + : "=&r" (result), "=&r" (temp), "=m" (v->counter)
6460 + : "Ir" (i), "m" (v->counter)
6461 + : "memory");
6462 + } else {
6463 + unsigned long flags;
6464 +
6465 + raw_local_irq_save(flags);
6466 + __asm__ __volatile__(
6467 + " ld %0, %1 \n"
6468 +#ifdef CONFIG_PAX_REFCOUNT
6469 + /* Exception on overflow. */
6470 + "1: dsub %0, %2 \n"
6471 +#else
6472 + " dsubu %0, %2 \n"
6473 +#endif
6474 + " sd %0, %1 \n"
6475 +#ifdef CONFIG_PAX_REFCOUNT
6476 + /* Note: Dest reg is not modified on overflow */
6477 + "2: \n"
6478 + _ASM_EXTABLE(1b, 2b)
6479 +#endif
6480 + : "=&r" (result), "+m" (v->counter) : "Ir" (i));
6481 + raw_local_irq_restore(flags);
6482 + }
6483 +
6484 + smp_llsc_mb();
6485 +
6486 + return result;
6487 +}
6488 +
6489 +static __inline__ long atomic64_sub_return_unchecked(long i, atomic64_unchecked_t *v)
6490 {
6491 long result;
6492
6493 @@ -605,7 +1274,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
6494 * Atomically test @v and subtract @i if @v is greater or equal than @i.
6495 * The function returns the old value of @v minus @i.
6496 */
6497 -static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
6498 +static __inline__ long atomic64_sub_if_positive(long i, atomic64_t *v)
6499 {
6500 long result;
6501
6502 @@ -662,9 +1331,26 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
6503 return result;
6504 }
6505
6506 -#define atomic64_cmpxchg(v, o, n) \
6507 - ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
6508 -#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
6509 +static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
6510 +{
6511 + return cmpxchg(&v->counter, old, new);
6512 +}
6513 +
6514 +static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old,
6515 + long new)
6516 +{
6517 + return cmpxchg(&(v->counter), old, new);
6518 +}
6519 +
6520 +static inline long atomic64_xchg(atomic64_t *v, long new)
6521 +{
6522 + return xchg(&v->counter, new);
6523 +}
6524 +
6525 +static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
6526 +{
6527 + return xchg(&(v->counter), new);
6528 +}
6529
6530 /**
6531 * atomic64_add_unless - add unless the number is a given value
6532 @@ -694,6 +1380,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6533
6534 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
6535 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
6536 +#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1, (v))
6537
6538 /*
6539 * atomic64_sub_and_test - subtract value from variable and test result
6540 @@ -715,6 +1402,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6541 * other cases.
6542 */
6543 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
6544 +#define atomic64_inc_and_test_unchecked(v) atomic64_add_return_unchecked(1, (v)) == 0)
6545
6546 /*
6547 * atomic64_dec_and_test - decrement by 1 and test
6548 @@ -739,6 +1427,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6549 * Atomically increments @v by 1.
6550 */
6551 #define atomic64_inc(v) atomic64_add(1, (v))
6552 +#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1, (v))
6553
6554 /*
6555 * atomic64_dec - decrement and test
6556 @@ -747,6 +1436,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6557 * Atomically decrements @v by 1.
6558 */
6559 #define atomic64_dec(v) atomic64_sub(1, (v))
6560 +#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1, (v))
6561
6562 /*
6563 * atomic64_add_negative - add and test if negative
6564 diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
6565 index e1aa4e4..670b68b 100644
6566 --- a/arch/mips/include/asm/barrier.h
6567 +++ b/arch/mips/include/asm/barrier.h
6568 @@ -184,7 +184,7 @@
6569 do { \
6570 compiletime_assert_atomic_type(*p); \
6571 smp_mb(); \
6572 - ACCESS_ONCE(*p) = (v); \
6573 + ACCESS_ONCE_RW(*p) = (v); \
6574 } while (0)
6575
6576 #define smp_load_acquire(p) \
6577 diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
6578 index b4db69f..8f3b093 100644
6579 --- a/arch/mips/include/asm/cache.h
6580 +++ b/arch/mips/include/asm/cache.h
6581 @@ -9,10 +9,11 @@
6582 #ifndef _ASM_CACHE_H
6583 #define _ASM_CACHE_H
6584
6585 +#include <linux/const.h>
6586 #include <kmalloc.h>
6587
6588 #define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
6589 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
6590 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
6591
6592 #define SMP_CACHE_SHIFT L1_CACHE_SHIFT
6593 #define SMP_CACHE_BYTES L1_CACHE_BYTES
6594 diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
6595 index d414405..6bb4ba2 100644
6596 --- a/arch/mips/include/asm/elf.h
6597 +++ b/arch/mips/include/asm/elf.h
6598 @@ -398,13 +398,16 @@ extern const char *__elf_platform;
6599 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
6600 #endif
6601
6602 +#ifdef CONFIG_PAX_ASLR
6603 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6604 +
6605 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6606 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6607 +#endif
6608 +
6609 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
6610 struct linux_binprm;
6611 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
6612 int uses_interp);
6613
6614 -struct mm_struct;
6615 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
6616 -#define arch_randomize_brk arch_randomize_brk
6617 -
6618 #endif /* _ASM_ELF_H */
6619 diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
6620 index c1f6afa..38cc6e9 100644
6621 --- a/arch/mips/include/asm/exec.h
6622 +++ b/arch/mips/include/asm/exec.h
6623 @@ -12,6 +12,6 @@
6624 #ifndef _ASM_EXEC_H
6625 #define _ASM_EXEC_H
6626
6627 -extern unsigned long arch_align_stack(unsigned long sp);
6628 +#define arch_align_stack(x) ((x) & ~0xfUL)
6629
6630 #endif /* _ASM_EXEC_H */
6631 diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
6632 index 9e8ef59..1139d6b 100644
6633 --- a/arch/mips/include/asm/hw_irq.h
6634 +++ b/arch/mips/include/asm/hw_irq.h
6635 @@ -10,7 +10,7 @@
6636
6637 #include <linux/atomic.h>
6638
6639 -extern atomic_t irq_err_count;
6640 +extern atomic_unchecked_t irq_err_count;
6641
6642 /*
6643 * interrupt-retrigger: NOP for now. This may not be appropriate for all
6644 diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
6645 index 46dfc3c..a16b13a 100644
6646 --- a/arch/mips/include/asm/local.h
6647 +++ b/arch/mips/include/asm/local.h
6648 @@ -12,15 +12,25 @@ typedef struct
6649 atomic_long_t a;
6650 } local_t;
6651
6652 +typedef struct {
6653 + atomic_long_unchecked_t a;
6654 +} local_unchecked_t;
6655 +
6656 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
6657
6658 #define local_read(l) atomic_long_read(&(l)->a)
6659 +#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
6660 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
6661 +#define local_set_unchecked(l, i) atomic_long_set_unchecked(&(l)->a, (i))
6662
6663 #define local_add(i, l) atomic_long_add((i), (&(l)->a))
6664 +#define local_add_unchecked(i, l) atomic_long_add_unchecked((i), (&(l)->a))
6665 #define local_sub(i, l) atomic_long_sub((i), (&(l)->a))
6666 +#define local_sub_unchecked(i, l) atomic_long_sub_unchecked((i), (&(l)->a))
6667 #define local_inc(l) atomic_long_inc(&(l)->a)
6668 +#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
6669 #define local_dec(l) atomic_long_dec(&(l)->a)
6670 +#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
6671
6672 /*
6673 * Same as above, but return the result value
6674 @@ -70,6 +80,51 @@ static __inline__ long local_add_return(long i, local_t * l)
6675 return result;
6676 }
6677
6678 +static __inline__ long local_add_return_unchecked(long i, local_unchecked_t * l)
6679 +{
6680 + unsigned long result;
6681 +
6682 + if (kernel_uses_llsc && R10000_LLSC_WAR) {
6683 + unsigned long temp;
6684 +
6685 + __asm__ __volatile__(
6686 + " .set mips3 \n"
6687 + "1:" __LL "%1, %2 # local_add_return \n"
6688 + " addu %0, %1, %3 \n"
6689 + __SC "%0, %2 \n"
6690 + " beqzl %0, 1b \n"
6691 + " addu %0, %1, %3 \n"
6692 + " .set mips0 \n"
6693 + : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
6694 + : "Ir" (i), "m" (l->a.counter)
6695 + : "memory");
6696 + } else if (kernel_uses_llsc) {
6697 + unsigned long temp;
6698 +
6699 + __asm__ __volatile__(
6700 + " .set mips3 \n"
6701 + "1:" __LL "%1, %2 # local_add_return \n"
6702 + " addu %0, %1, %3 \n"
6703 + __SC "%0, %2 \n"
6704 + " beqz %0, 1b \n"
6705 + " addu %0, %1, %3 \n"
6706 + " .set mips0 \n"
6707 + : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
6708 + : "Ir" (i), "m" (l->a.counter)
6709 + : "memory");
6710 + } else {
6711 + unsigned long flags;
6712 +
6713 + local_irq_save(flags);
6714 + result = l->a.counter;
6715 + result += i;
6716 + l->a.counter = result;
6717 + local_irq_restore(flags);
6718 + }
6719 +
6720 + return result;
6721 +}
6722 +
6723 static __inline__ long local_sub_return(long i, local_t * l)
6724 {
6725 unsigned long result;
6726 @@ -117,6 +172,8 @@ static __inline__ long local_sub_return(long i, local_t * l)
6727
6728 #define local_cmpxchg(l, o, n) \
6729 ((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
6730 +#define local_cmpxchg_unchecked(l, o, n) \
6731 + ((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
6732 #define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
6733
6734 /**
6735 diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
6736 index 5699ec3..95def83 100644
6737 --- a/arch/mips/include/asm/page.h
6738 +++ b/arch/mips/include/asm/page.h
6739 @@ -120,7 +120,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
6740 #ifdef CONFIG_CPU_MIPS32
6741 typedef struct { unsigned long pte_low, pte_high; } pte_t;
6742 #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
6743 - #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
6744 + #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
6745 #else
6746 typedef struct { unsigned long long pte; } pte_t;
6747 #define pte_val(x) ((x).pte)
6748 diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
6749 index b336037..5b874cc 100644
6750 --- a/arch/mips/include/asm/pgalloc.h
6751 +++ b/arch/mips/include/asm/pgalloc.h
6752 @@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
6753 {
6754 set_pud(pud, __pud((unsigned long)pmd));
6755 }
6756 +
6757 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
6758 +{
6759 + pud_populate(mm, pud, pmd);
6760 +}
6761 #endif
6762
6763 /*
6764 diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
6765 index 008324d..f67c239 100644
6766 --- a/arch/mips/include/asm/pgtable.h
6767 +++ b/arch/mips/include/asm/pgtable.h
6768 @@ -20,6 +20,9 @@
6769 #include <asm/io.h>
6770 #include <asm/pgtable-bits.h>
6771
6772 +#define ktla_ktva(addr) (addr)
6773 +#define ktva_ktla(addr) (addr)
6774 +
6775 struct mm_struct;
6776 struct vm_area_struct;
6777
6778 diff --git a/arch/mips/include/asm/smtc_proc.h b/arch/mips/include/asm/smtc_proc.h
6779 index 25da651..ae2a259 100644
6780 --- a/arch/mips/include/asm/smtc_proc.h
6781 +++ b/arch/mips/include/asm/smtc_proc.h
6782 @@ -18,6 +18,6 @@ extern struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS];
6783
6784 /* Count of number of recoveries of "stolen" FPU access rights on 34K */
6785
6786 -extern atomic_t smtc_fpu_recoveries;
6787 +extern atomic_unchecked_t smtc_fpu_recoveries;
6788
6789 #endif /* __ASM_SMTC_PROC_H */
6790 diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
6791 index d2d961d..a674df0 100644
6792 --- a/arch/mips/include/asm/thread_info.h
6793 +++ b/arch/mips/include/asm/thread_info.h
6794 @@ -105,6 +105,9 @@ static inline struct thread_info *current_thread_info(void)
6795 #define TIF_SECCOMP 4 /* secure computing */
6796 #define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
6797 #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
6798 +/* li takes a 32bit immediate */
6799 +#define TIF_GRSEC_SETXID 10 /* update credentials on syscall entry/exit */
6800 +
6801 #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
6802 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
6803 #define TIF_NOHZ 19 /* in adaptive nohz mode */
6804 @@ -138,14 +141,16 @@ static inline struct thread_info *current_thread_info(void)
6805 #define _TIF_USEDMSA (1<<TIF_USEDMSA)
6806 #define _TIF_MSA_CTX_LIVE (1<<TIF_MSA_CTX_LIVE)
6807 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
6808 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
6809
6810 #define _TIF_WORK_SYSCALL_ENTRY (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \
6811 _TIF_SYSCALL_AUDIT | \
6812 - _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
6813 + _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
6814 + _TIF_GRSEC_SETXID)
6815
6816 /* work to do in syscall_trace_leave() */
6817 #define _TIF_WORK_SYSCALL_EXIT (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \
6818 - _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
6819 + _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
6820
6821 /* work to do on interrupt/exception return */
6822 #define _TIF_WORK_MASK \
6823 @@ -153,7 +158,7 @@ static inline struct thread_info *current_thread_info(void)
6824 /* work to do on any return to u-space */
6825 #define _TIF_ALLWORK_MASK (_TIF_NOHZ | _TIF_WORK_MASK | \
6826 _TIF_WORK_SYSCALL_EXIT | \
6827 - _TIF_SYSCALL_TRACEPOINT)
6828 + _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
6829
6830 /*
6831 * We stash processor id into a COP0 register to retrieve it fast
6832 diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
6833 index a109510..94ee3f6 100644
6834 --- a/arch/mips/include/asm/uaccess.h
6835 +++ b/arch/mips/include/asm/uaccess.h
6836 @@ -130,6 +130,7 @@ extern u64 __ua_limit;
6837 __ok == 0; \
6838 })
6839
6840 +#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
6841 #define access_ok(type, addr, size) \
6842 likely(__access_ok((addr), (size), __access_mask))
6843
6844 diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
6845 index 1188e00..41cf144 100644
6846 --- a/arch/mips/kernel/binfmt_elfn32.c
6847 +++ b/arch/mips/kernel/binfmt_elfn32.c
6848 @@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
6849 #undef ELF_ET_DYN_BASE
6850 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
6851
6852 +#ifdef CONFIG_PAX_ASLR
6853 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6854 +
6855 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6856 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6857 +#endif
6858 +
6859 #include <asm/processor.h>
6860 #include <linux/module.h>
6861 #include <linux/elfcore.h>
6862 diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
6863 index 7faf5f2..f3d3cf4 100644
6864 --- a/arch/mips/kernel/binfmt_elfo32.c
6865 +++ b/arch/mips/kernel/binfmt_elfo32.c
6866 @@ -70,6 +70,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
6867 #undef ELF_ET_DYN_BASE
6868 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
6869
6870 +#ifdef CONFIG_PAX_ASLR
6871 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6872 +
6873 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6874 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6875 +#endif
6876 +
6877 #include <asm/processor.h>
6878
6879 /*
6880 diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
6881 index 2b91fe8..fe4f6b4 100644
6882 --- a/arch/mips/kernel/i8259.c
6883 +++ b/arch/mips/kernel/i8259.c
6884 @@ -205,7 +205,7 @@ spurious_8259A_irq:
6885 printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
6886 spurious_irq_mask |= irqmask;
6887 }
6888 - atomic_inc(&irq_err_count);
6889 + atomic_inc_unchecked(&irq_err_count);
6890 /*
6891 * Theoretically we do not have to handle this IRQ,
6892 * but in Linux this does not cause problems and is
6893 diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c
6894 index 44a1f79..2bd6aa3 100644
6895 --- a/arch/mips/kernel/irq-gt641xx.c
6896 +++ b/arch/mips/kernel/irq-gt641xx.c
6897 @@ -110,7 +110,7 @@ void gt641xx_irq_dispatch(void)
6898 }
6899 }
6900
6901 - atomic_inc(&irq_err_count);
6902 + atomic_inc_unchecked(&irq_err_count);
6903 }
6904
6905 void __init gt641xx_irq_init(void)
6906 diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
6907 index d1fea7a..2e591b0 100644
6908 --- a/arch/mips/kernel/irq.c
6909 +++ b/arch/mips/kernel/irq.c
6910 @@ -77,17 +77,17 @@ void ack_bad_irq(unsigned int irq)
6911 printk("unexpected IRQ # %d\n", irq);
6912 }
6913
6914 -atomic_t irq_err_count;
6915 +atomic_unchecked_t irq_err_count;
6916
6917 int arch_show_interrupts(struct seq_file *p, int prec)
6918 {
6919 - seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
6920 + seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
6921 return 0;
6922 }
6923
6924 asmlinkage void spurious_interrupt(void)
6925 {
6926 - atomic_inc(&irq_err_count);
6927 + atomic_inc_unchecked(&irq_err_count);
6928 }
6929
6930 void __init init_IRQ(void)
6931 @@ -110,7 +110,10 @@ void __init init_IRQ(void)
6932 #endif
6933 }
6934
6935 +
6936 #ifdef DEBUG_STACKOVERFLOW
6937 +extern void gr_handle_kernel_exploit(void);
6938 +
6939 static inline void check_stack_overflow(void)
6940 {
6941 unsigned long sp;
6942 @@ -126,6 +129,7 @@ static inline void check_stack_overflow(void)
6943 printk("do_IRQ: stack overflow: %ld\n",
6944 sp - sizeof(struct thread_info));
6945 dump_stack();
6946 + gr_handle_kernel_exploit();
6947 }
6948 }
6949 #else
6950 diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
6951 index 60e39dc..b4829bf 100644
6952 --- a/arch/mips/kernel/process.c
6953 +++ b/arch/mips/kernel/process.c
6954 @@ -579,15 +579,3 @@ unsigned long get_wchan(struct task_struct *task)
6955 out:
6956 return pc;
6957 }
6958 -
6959 -/*
6960 - * Don't forget that the stack pointer must be aligned on a 8 bytes
6961 - * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
6962 - */
6963 -unsigned long arch_align_stack(unsigned long sp)
6964 -{
6965 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
6966 - sp -= get_random_int() & ~PAGE_MASK;
6967 -
6968 - return sp & ALMASK;
6969 -}
6970 diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
6971 index f639ccd..e4b110d 100644
6972 --- a/arch/mips/kernel/ptrace.c
6973 +++ b/arch/mips/kernel/ptrace.c
6974 @@ -630,6 +630,10 @@ long arch_ptrace(struct task_struct *child, long request,
6975 return ret;
6976 }
6977
6978 +#ifdef CONFIG_GRKERNSEC_SETXID
6979 +extern void gr_delayed_cred_worker(void);
6980 +#endif
6981 +
6982 /*
6983 * Notification of system call entry/exit
6984 * - triggered by current->work.syscall_trace
6985 @@ -646,6 +650,11 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
6986 tracehook_report_syscall_entry(regs))
6987 ret = -1;
6988
6989 +#ifdef CONFIG_GRKERNSEC_SETXID
6990 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
6991 + gr_delayed_cred_worker();
6992 +#endif
6993 +
6994 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
6995 trace_sys_enter(regs, regs->regs[2]);
6996
6997 diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
6998 index 07fc524..b9d7f28 100644
6999 --- a/arch/mips/kernel/reset.c
7000 +++ b/arch/mips/kernel/reset.c
7001 @@ -13,6 +13,7 @@
7002 #include <linux/reboot.h>
7003
7004 #include <asm/reboot.h>
7005 +#include <asm/bug.h>
7006
7007 /*
7008 * Urgs ... Too many MIPS machines to handle this in a generic way.
7009 @@ -29,16 +30,19 @@ void machine_restart(char *command)
7010 {
7011 if (_machine_restart)
7012 _machine_restart(command);
7013 + BUG();
7014 }
7015
7016 void machine_halt(void)
7017 {
7018 if (_machine_halt)
7019 _machine_halt();
7020 + BUG();
7021 }
7022
7023 void machine_power_off(void)
7024 {
7025 if (pm_power_off)
7026 pm_power_off();
7027 + BUG();
7028 }
7029 diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
7030 index 38635a9..3fcd5e0 100644
7031 --- a/arch/mips/kernel/smtc-proc.c
7032 +++ b/arch/mips/kernel/smtc-proc.c
7033 @@ -31,7 +31,7 @@ unsigned long selfipis[NR_CPUS];
7034
7035 struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS];
7036
7037 -atomic_t smtc_fpu_recoveries;
7038 +atomic_unchecked_t smtc_fpu_recoveries;
7039
7040 static int smtc_proc_show(struct seq_file *m, void *v)
7041 {
7042 @@ -48,7 +48,7 @@ static int smtc_proc_show(struct seq_file *m, void *v)
7043 for(i = 0; i < NR_CPUS; i++)
7044 seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis);
7045 seq_printf(m, "%d Recoveries of \"stolen\" FPU\n",
7046 - atomic_read(&smtc_fpu_recoveries));
7047 + atomic_read_unchecked(&smtc_fpu_recoveries));
7048 return 0;
7049 }
7050
7051 @@ -73,7 +73,7 @@ void init_smtc_stats(void)
7052 smtc_cpu_stats[i].selfipis = 0;
7053 }
7054
7055 - atomic_set(&smtc_fpu_recoveries, 0);
7056 + atomic_set_unchecked(&smtc_fpu_recoveries, 0);
7057
7058 proc_create("smtc", 0444, NULL, &smtc_proc_fops);
7059 }
7060 diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
7061 index c1681d6..9f881d1 100644
7062 --- a/arch/mips/kernel/smtc.c
7063 +++ b/arch/mips/kernel/smtc.c
7064 @@ -1359,7 +1359,7 @@ void smtc_soft_dump(void)
7065 }
7066 smtc_ipi_qdump();
7067 printk("%d Recoveries of \"stolen\" FPU\n",
7068 - atomic_read(&smtc_fpu_recoveries));
7069 + atomic_read_unchecked(&smtc_fpu_recoveries));
7070 }
7071
7072
7073 diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
7074 index c24ad5f..9983ab2 100644
7075 --- a/arch/mips/kernel/sync-r4k.c
7076 +++ b/arch/mips/kernel/sync-r4k.c
7077 @@ -20,8 +20,8 @@
7078 #include <asm/mipsregs.h>
7079
7080 static atomic_t count_start_flag = ATOMIC_INIT(0);
7081 -static atomic_t count_count_start = ATOMIC_INIT(0);
7082 -static atomic_t count_count_stop = ATOMIC_INIT(0);
7083 +static atomic_unchecked_t count_count_start = ATOMIC_INIT(0);
7084 +static atomic_unchecked_t count_count_stop = ATOMIC_INIT(0);
7085 static atomic_t count_reference = ATOMIC_INIT(0);
7086
7087 #define COUNTON 100
7088 @@ -68,13 +68,13 @@ void synchronise_count_master(int cpu)
7089
7090 for (i = 0; i < NR_LOOPS; i++) {
7091 /* slaves loop on '!= 2' */
7092 - while (atomic_read(&count_count_start) != 1)
7093 + while (atomic_read_unchecked(&count_count_start) != 1)
7094 mb();
7095 - atomic_set(&count_count_stop, 0);
7096 + atomic_set_unchecked(&count_count_stop, 0);
7097 smp_wmb();
7098
7099 /* this lets the slaves write their count register */
7100 - atomic_inc(&count_count_start);
7101 + atomic_inc_unchecked(&count_count_start);
7102
7103 /*
7104 * Everyone initialises count in the last loop:
7105 @@ -85,11 +85,11 @@ void synchronise_count_master(int cpu)
7106 /*
7107 * Wait for all slaves to leave the synchronization point:
7108 */
7109 - while (atomic_read(&count_count_stop) != 1)
7110 + while (atomic_read_unchecked(&count_count_stop) != 1)
7111 mb();
7112 - atomic_set(&count_count_start, 0);
7113 + atomic_set_unchecked(&count_count_start, 0);
7114 smp_wmb();
7115 - atomic_inc(&count_count_stop);
7116 + atomic_inc_unchecked(&count_count_stop);
7117 }
7118 /* Arrange for an interrupt in a short while */
7119 write_c0_compare(read_c0_count() + COUNTON);
7120 @@ -130,8 +130,8 @@ void synchronise_count_slave(int cpu)
7121 initcount = atomic_read(&count_reference);
7122
7123 for (i = 0; i < NR_LOOPS; i++) {
7124 - atomic_inc(&count_count_start);
7125 - while (atomic_read(&count_count_start) != 2)
7126 + atomic_inc_unchecked(&count_count_start);
7127 + while (atomic_read_unchecked(&count_count_start) != 2)
7128 mb();
7129
7130 /*
7131 @@ -140,8 +140,8 @@ void synchronise_count_slave(int cpu)
7132 if (i == NR_LOOPS-1)
7133 write_c0_count(initcount);
7134
7135 - atomic_inc(&count_count_stop);
7136 - while (atomic_read(&count_count_stop) != 2)
7137 + atomic_inc_unchecked(&count_count_stop);
7138 + while (atomic_read_unchecked(&count_count_stop) != 2)
7139 mb();
7140 }
7141 /* Arrange for an interrupt in a short while */
7142 diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
7143 index 8119ac2..b229939 100644
7144 --- a/arch/mips/kernel/traps.c
7145 +++ b/arch/mips/kernel/traps.c
7146 @@ -695,7 +695,18 @@ asmlinkage void do_ov(struct pt_regs *regs)
7147 siginfo_t info;
7148
7149 prev_state = exception_enter();
7150 - die_if_kernel("Integer overflow", regs);
7151 + if (unlikely(!user_mode(regs))) {
7152 +
7153 +#ifdef CONFIG_PAX_REFCOUNT
7154 + if (fixup_exception(regs)) {
7155 + pax_report_refcount_overflow(regs);
7156 + exception_exit(prev_state);
7157 + return;
7158 + }
7159 +#endif
7160 +
7161 + die("Integer overflow", regs);
7162 + }
7163
7164 info.si_code = FPE_INTOVF;
7165 info.si_signo = SIGFPE;
7166 diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
7167 index becc42b..9e43d4b 100644
7168 --- a/arch/mips/mm/fault.c
7169 +++ b/arch/mips/mm/fault.c
7170 @@ -28,6 +28,23 @@
7171 #include <asm/highmem.h> /* For VMALLOC_END */
7172 #include <linux/kdebug.h>
7173
7174 +#ifdef CONFIG_PAX_PAGEEXEC
7175 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
7176 +{
7177 + unsigned long i;
7178 +
7179 + printk(KERN_ERR "PAX: bytes at PC: ");
7180 + for (i = 0; i < 5; i++) {
7181 + unsigned int c;
7182 + if (get_user(c, (unsigned int *)pc+i))
7183 + printk(KERN_CONT "???????? ");
7184 + else
7185 + printk(KERN_CONT "%08x ", c);
7186 + }
7187 + printk("\n");
7188 +}
7189 +#endif
7190 +
7191 /*
7192 * This routine handles page faults. It determines the address,
7193 * and the problem, and then passes it off to one of the appropriate
7194 @@ -199,6 +216,14 @@ bad_area:
7195 bad_area_nosemaphore:
7196 /* User mode accesses just cause a SIGSEGV */
7197 if (user_mode(regs)) {
7198 +
7199 +#ifdef CONFIG_PAX_PAGEEXEC
7200 + if (cpu_has_rixi && (mm->pax_flags & MF_PAX_PAGEEXEC) && !write && address == instruction_pointer(regs)) {
7201 + pax_report_fault(regs, (void *)address, (void *)user_stack_pointer(regs));
7202 + do_group_exit(SIGKILL);
7203 + }
7204 +#endif
7205 +
7206 tsk->thread.cp0_badvaddr = address;
7207 tsk->thread.error_code = write;
7208 #if 0
7209 diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
7210 index f1baadd..5472dca 100644
7211 --- a/arch/mips/mm/mmap.c
7212 +++ b/arch/mips/mm/mmap.c
7213 @@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
7214 struct vm_area_struct *vma;
7215 unsigned long addr = addr0;
7216 int do_color_align;
7217 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
7218 struct vm_unmapped_area_info info;
7219
7220 if (unlikely(len > TASK_SIZE))
7221 @@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
7222 do_color_align = 1;
7223
7224 /* requesting a specific address */
7225 +
7226 +#ifdef CONFIG_PAX_RANDMMAP
7227 + if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
7228 +#endif
7229 +
7230 if (addr) {
7231 if (do_color_align)
7232 addr = COLOUR_ALIGN(addr, pgoff);
7233 @@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
7234 addr = PAGE_ALIGN(addr);
7235
7236 vma = find_vma(mm, addr);
7237 - if (TASK_SIZE - len >= addr &&
7238 - (!vma || addr + len <= vma->vm_start))
7239 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
7240 return addr;
7241 }
7242
7243 info.length = len;
7244 info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
7245 info.align_offset = pgoff << PAGE_SHIFT;
7246 + info.threadstack_offset = offset;
7247
7248 if (dir == DOWN) {
7249 info.flags = VM_UNMAPPED_AREA_TOPDOWN;
7250 @@ -146,6 +152,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7251 {
7252 unsigned long random_factor = 0UL;
7253
7254 +#ifdef CONFIG_PAX_RANDMMAP
7255 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7256 +#endif
7257 +
7258 if (current->flags & PF_RANDOMIZE) {
7259 random_factor = get_random_int();
7260 random_factor = random_factor << PAGE_SHIFT;
7261 @@ -157,40 +167,25 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7262
7263 if (mmap_is_legacy()) {
7264 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
7265 +
7266 +#ifdef CONFIG_PAX_RANDMMAP
7267 + if (mm->pax_flags & MF_PAX_RANDMMAP)
7268 + mm->mmap_base += mm->delta_mmap;
7269 +#endif
7270 +
7271 mm->get_unmapped_area = arch_get_unmapped_area;
7272 } else {
7273 mm->mmap_base = mmap_base(random_factor);
7274 +
7275 +#ifdef CONFIG_PAX_RANDMMAP
7276 + if (mm->pax_flags & MF_PAX_RANDMMAP)
7277 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7278 +#endif
7279 +
7280 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
7281 }
7282 }
7283
7284 -static inline unsigned long brk_rnd(void)
7285 -{
7286 - unsigned long rnd = get_random_int();
7287 -
7288 - rnd = rnd << PAGE_SHIFT;
7289 - /* 8MB for 32bit, 256MB for 64bit */
7290 - if (TASK_IS_32BIT_ADDR)
7291 - rnd = rnd & 0x7ffffful;
7292 - else
7293 - rnd = rnd & 0xffffffful;
7294 -
7295 - return rnd;
7296 -}
7297 -
7298 -unsigned long arch_randomize_brk(struct mm_struct *mm)
7299 -{
7300 - unsigned long base = mm->brk;
7301 - unsigned long ret;
7302 -
7303 - ret = PAGE_ALIGN(base + brk_rnd());
7304 -
7305 - if (ret < mm->brk)
7306 - return mm->brk;
7307 -
7308 - return ret;
7309 -}
7310 -
7311 int __virt_addr_valid(const volatile void *kaddr)
7312 {
7313 return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
7314 diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
7315 index 59cccd9..f39ac2f 100644
7316 --- a/arch/mips/pci/pci-octeon.c
7317 +++ b/arch/mips/pci/pci-octeon.c
7318 @@ -327,8 +327,8 @@ static int octeon_write_config(struct pci_bus *bus, unsigned int devfn,
7319
7320
7321 static struct pci_ops octeon_pci_ops = {
7322 - octeon_read_config,
7323 - octeon_write_config,
7324 + .read = octeon_read_config,
7325 + .write = octeon_write_config,
7326 };
7327
7328 static struct resource octeon_pci_mem_resource = {
7329 diff --git a/arch/mips/pci/pcie-octeon.c b/arch/mips/pci/pcie-octeon.c
7330 index 5e36c33..eb4a17b 100644
7331 --- a/arch/mips/pci/pcie-octeon.c
7332 +++ b/arch/mips/pci/pcie-octeon.c
7333 @@ -1792,8 +1792,8 @@ static int octeon_dummy_write_config(struct pci_bus *bus, unsigned int devfn,
7334 }
7335
7336 static struct pci_ops octeon_pcie0_ops = {
7337 - octeon_pcie0_read_config,
7338 - octeon_pcie0_write_config,
7339 + .read = octeon_pcie0_read_config,
7340 + .write = octeon_pcie0_write_config,
7341 };
7342
7343 static struct resource octeon_pcie0_mem_resource = {
7344 @@ -1813,8 +1813,8 @@ static struct pci_controller octeon_pcie0_controller = {
7345 };
7346
7347 static struct pci_ops octeon_pcie1_ops = {
7348 - octeon_pcie1_read_config,
7349 - octeon_pcie1_write_config,
7350 + .read = octeon_pcie1_read_config,
7351 + .write = octeon_pcie1_write_config,
7352 };
7353
7354 static struct resource octeon_pcie1_mem_resource = {
7355 @@ -1834,8 +1834,8 @@ static struct pci_controller octeon_pcie1_controller = {
7356 };
7357
7358 static struct pci_ops octeon_dummy_ops = {
7359 - octeon_dummy_read_config,
7360 - octeon_dummy_write_config,
7361 + .read = octeon_dummy_read_config,
7362 + .write = octeon_dummy_write_config,
7363 };
7364
7365 static struct resource octeon_dummy_mem_resource = {
7366 diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
7367 index a2358b4..7cead4f 100644
7368 --- a/arch/mips/sgi-ip27/ip27-nmi.c
7369 +++ b/arch/mips/sgi-ip27/ip27-nmi.c
7370 @@ -187,9 +187,9 @@ void
7371 cont_nmi_dump(void)
7372 {
7373 #ifndef REAL_NMI_SIGNAL
7374 - static atomic_t nmied_cpus = ATOMIC_INIT(0);
7375 + static atomic_unchecked_t nmied_cpus = ATOMIC_INIT(0);
7376
7377 - atomic_inc(&nmied_cpus);
7378 + atomic_inc_unchecked(&nmied_cpus);
7379 #endif
7380 /*
7381 * Only allow 1 cpu to proceed
7382 @@ -233,7 +233,7 @@ cont_nmi_dump(void)
7383 udelay(10000);
7384 }
7385 #else
7386 - while (atomic_read(&nmied_cpus) != num_online_cpus());
7387 + while (atomic_read_unchecked(&nmied_cpus) != num_online_cpus());
7388 #endif
7389
7390 /*
7391 diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
7392 index a046b30..6799527 100644
7393 --- a/arch/mips/sni/rm200.c
7394 +++ b/arch/mips/sni/rm200.c
7395 @@ -270,7 +270,7 @@ spurious_8259A_irq:
7396 "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
7397 spurious_irq_mask |= irqmask;
7398 }
7399 - atomic_inc(&irq_err_count);
7400 + atomic_inc_unchecked(&irq_err_count);
7401 /*
7402 * Theoretically we do not have to handle this IRQ,
7403 * but in Linux this does not cause problems and is
7404 diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
7405 index 41e873b..34d33a7 100644
7406 --- a/arch/mips/vr41xx/common/icu.c
7407 +++ b/arch/mips/vr41xx/common/icu.c
7408 @@ -653,7 +653,7 @@ static int icu_get_irq(unsigned int irq)
7409
7410 printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);
7411
7412 - atomic_inc(&irq_err_count);
7413 + atomic_inc_unchecked(&irq_err_count);
7414
7415 return -1;
7416 }
7417 diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
7418 index ae0e4ee..e8f0692 100644
7419 --- a/arch/mips/vr41xx/common/irq.c
7420 +++ b/arch/mips/vr41xx/common/irq.c
7421 @@ -64,7 +64,7 @@ static void irq_dispatch(unsigned int irq)
7422 irq_cascade_t *cascade;
7423
7424 if (irq >= NR_IRQS) {
7425 - atomic_inc(&irq_err_count);
7426 + atomic_inc_unchecked(&irq_err_count);
7427 return;
7428 }
7429
7430 @@ -84,7 +84,7 @@ static void irq_dispatch(unsigned int irq)
7431 ret = cascade->get_irq(irq);
7432 irq = ret;
7433 if (ret < 0)
7434 - atomic_inc(&irq_err_count);
7435 + atomic_inc_unchecked(&irq_err_count);
7436 else
7437 irq_dispatch(irq);
7438 if (!irqd_irq_disabled(idata) && chip->irq_unmask)
7439 diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7440 index 967d144..db12197 100644
7441 --- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
7442 +++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7443 @@ -11,12 +11,14 @@
7444 #ifndef _ASM_PROC_CACHE_H
7445 #define _ASM_PROC_CACHE_H
7446
7447 +#include <linux/const.h>
7448 +
7449 /* L1 cache */
7450
7451 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7452 #define L1_CACHE_NENTRIES 256 /* number of entries in each way */
7453 -#define L1_CACHE_BYTES 16 /* bytes per entry */
7454 #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */
7455 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7456 #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */
7457
7458 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7459 diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7460 index bcb5df2..84fabd2 100644
7461 --- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7462 +++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7463 @@ -16,13 +16,15 @@
7464 #ifndef _ASM_PROC_CACHE_H
7465 #define _ASM_PROC_CACHE_H
7466
7467 +#include <linux/const.h>
7468 +
7469 /*
7470 * L1 cache
7471 */
7472 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7473 #define L1_CACHE_NENTRIES 128 /* number of entries in each way */
7474 -#define L1_CACHE_BYTES 32 /* bytes per entry */
7475 #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
7476 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7477 #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
7478
7479 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7480 diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
7481 index 4ce7a01..449202a 100644
7482 --- a/arch/openrisc/include/asm/cache.h
7483 +++ b/arch/openrisc/include/asm/cache.h
7484 @@ -19,11 +19,13 @@
7485 #ifndef __ASM_OPENRISC_CACHE_H
7486 #define __ASM_OPENRISC_CACHE_H
7487
7488 +#include <linux/const.h>
7489 +
7490 /* FIXME: How can we replace these with values from the CPU...
7491 * they shouldn't be hard-coded!
7492 */
7493
7494 -#define L1_CACHE_BYTES 16
7495 #define L1_CACHE_SHIFT 4
7496 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7497
7498 #endif /* __ASM_OPENRISC_CACHE_H */
7499 diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
7500 index 472886c..00e7df9 100644
7501 --- a/arch/parisc/include/asm/atomic.h
7502 +++ b/arch/parisc/include/asm/atomic.h
7503 @@ -252,6 +252,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
7504 return dec;
7505 }
7506
7507 +#define atomic64_read_unchecked(v) atomic64_read(v)
7508 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
7509 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
7510 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
7511 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
7512 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
7513 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
7514 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
7515 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
7516 +
7517 #endif /* !CONFIG_64BIT */
7518
7519
7520 diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
7521 index 47f11c7..3420df2 100644
7522 --- a/arch/parisc/include/asm/cache.h
7523 +++ b/arch/parisc/include/asm/cache.h
7524 @@ -5,6 +5,7 @@
7525 #ifndef __ARCH_PARISC_CACHE_H
7526 #define __ARCH_PARISC_CACHE_H
7527
7528 +#include <linux/const.h>
7529
7530 /*
7531 * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
7532 @@ -15,13 +16,13 @@
7533 * just ruin performance.
7534 */
7535 #ifdef CONFIG_PA20
7536 -#define L1_CACHE_BYTES 64
7537 #define L1_CACHE_SHIFT 6
7538 #else
7539 -#define L1_CACHE_BYTES 32
7540 #define L1_CACHE_SHIFT 5
7541 #endif
7542
7543 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7544 +
7545 #ifndef __ASSEMBLY__
7546
7547 #define SMP_CACHE_BYTES L1_CACHE_BYTES
7548 diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
7549 index 3391d06..c23a2cc 100644
7550 --- a/arch/parisc/include/asm/elf.h
7551 +++ b/arch/parisc/include/asm/elf.h
7552 @@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */
7553
7554 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
7555
7556 +#ifdef CONFIG_PAX_ASLR
7557 +#define PAX_ELF_ET_DYN_BASE 0x10000UL
7558 +
7559 +#define PAX_DELTA_MMAP_LEN 16
7560 +#define PAX_DELTA_STACK_LEN 16
7561 +#endif
7562 +
7563 /* This yields a mask that user programs can use to figure out what
7564 instruction set this CPU supports. This could be done in user space,
7565 but it's not easy, and we've already done it here. */
7566 diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
7567 index f213f5b..0af3e8e 100644
7568 --- a/arch/parisc/include/asm/pgalloc.h
7569 +++ b/arch/parisc/include/asm/pgalloc.h
7570 @@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7571 (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
7572 }
7573
7574 +static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7575 +{
7576 + pgd_populate(mm, pgd, pmd);
7577 +}
7578 +
7579 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
7580 {
7581 pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
7582 @@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
7583 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
7584 #define pmd_free(mm, x) do { } while (0)
7585 #define pgd_populate(mm, pmd, pte) BUG()
7586 +#define pgd_populate_kernel(mm, pmd, pte) BUG()
7587
7588 #endif
7589
7590 diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
7591 index 22b89d1..ce34230 100644
7592 --- a/arch/parisc/include/asm/pgtable.h
7593 +++ b/arch/parisc/include/asm/pgtable.h
7594 @@ -223,6 +223,17 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
7595 #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
7596 #define PAGE_COPY PAGE_EXECREAD
7597 #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
7598 +
7599 +#ifdef CONFIG_PAX_PAGEEXEC
7600 +# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
7601 +# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7602 +# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7603 +#else
7604 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
7605 +# define PAGE_COPY_NOEXEC PAGE_COPY
7606 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
7607 +#endif
7608 +
7609 #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
7610 #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
7611 #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX)
7612 diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
7613 index 4006964..fcb3cc2 100644
7614 --- a/arch/parisc/include/asm/uaccess.h
7615 +++ b/arch/parisc/include/asm/uaccess.h
7616 @@ -246,10 +246,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
7617 const void __user *from,
7618 unsigned long n)
7619 {
7620 - int sz = __compiletime_object_size(to);
7621 + size_t sz = __compiletime_object_size(to);
7622 int ret = -EFAULT;
7623
7624 - if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
7625 + if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
7626 ret = __copy_from_user(to, from, n);
7627 else
7628 copy_from_user_overflow();
7629 diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
7630 index 50dfafc..b9fc230 100644
7631 --- a/arch/parisc/kernel/module.c
7632 +++ b/arch/parisc/kernel/module.c
7633 @@ -98,16 +98,38 @@
7634
7635 /* three functions to determine where in the module core
7636 * or init pieces the location is */
7637 +static inline int in_init_rx(struct module *me, void *loc)
7638 +{
7639 + return (loc >= me->module_init_rx &&
7640 + loc < (me->module_init_rx + me->init_size_rx));
7641 +}
7642 +
7643 +static inline int in_init_rw(struct module *me, void *loc)
7644 +{
7645 + return (loc >= me->module_init_rw &&
7646 + loc < (me->module_init_rw + me->init_size_rw));
7647 +}
7648 +
7649 static inline int in_init(struct module *me, void *loc)
7650 {
7651 - return (loc >= me->module_init &&
7652 - loc <= (me->module_init + me->init_size));
7653 + return in_init_rx(me, loc) || in_init_rw(me, loc);
7654 +}
7655 +
7656 +static inline int in_core_rx(struct module *me, void *loc)
7657 +{
7658 + return (loc >= me->module_core_rx &&
7659 + loc < (me->module_core_rx + me->core_size_rx));
7660 +}
7661 +
7662 +static inline int in_core_rw(struct module *me, void *loc)
7663 +{
7664 + return (loc >= me->module_core_rw &&
7665 + loc < (me->module_core_rw + me->core_size_rw));
7666 }
7667
7668 static inline int in_core(struct module *me, void *loc)
7669 {
7670 - return (loc >= me->module_core &&
7671 - loc <= (me->module_core + me->core_size));
7672 + return in_core_rx(me, loc) || in_core_rw(me, loc);
7673 }
7674
7675 static inline int in_local(struct module *me, void *loc)
7676 @@ -371,13 +393,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
7677 }
7678
7679 /* align things a bit */
7680 - me->core_size = ALIGN(me->core_size, 16);
7681 - me->arch.got_offset = me->core_size;
7682 - me->core_size += gots * sizeof(struct got_entry);
7683 + me->core_size_rw = ALIGN(me->core_size_rw, 16);
7684 + me->arch.got_offset = me->core_size_rw;
7685 + me->core_size_rw += gots * sizeof(struct got_entry);
7686
7687 - me->core_size = ALIGN(me->core_size, 16);
7688 - me->arch.fdesc_offset = me->core_size;
7689 - me->core_size += fdescs * sizeof(Elf_Fdesc);
7690 + me->core_size_rw = ALIGN(me->core_size_rw, 16);
7691 + me->arch.fdesc_offset = me->core_size_rw;
7692 + me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
7693
7694 me->arch.got_max = gots;
7695 me->arch.fdesc_max = fdescs;
7696 @@ -395,7 +417,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7697
7698 BUG_ON(value == 0);
7699
7700 - got = me->module_core + me->arch.got_offset;
7701 + got = me->module_core_rw + me->arch.got_offset;
7702 for (i = 0; got[i].addr; i++)
7703 if (got[i].addr == value)
7704 goto out;
7705 @@ -413,7 +435,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7706 #ifdef CONFIG_64BIT
7707 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7708 {
7709 - Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
7710 + Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
7711
7712 if (!value) {
7713 printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
7714 @@ -431,7 +453,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7715
7716 /* Create new one */
7717 fdesc->addr = value;
7718 - fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7719 + fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7720 return (Elf_Addr)fdesc;
7721 }
7722 #endif /* CONFIG_64BIT */
7723 @@ -843,7 +865,7 @@ register_unwind_table(struct module *me,
7724
7725 table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
7726 end = table + sechdrs[me->arch.unwind_section].sh_size;
7727 - gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7728 + gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7729
7730 DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
7731 me->arch.unwind_section, table, end, gp);
7732 diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
7733 index e1ffea2..46ed66e 100644
7734 --- a/arch/parisc/kernel/sys_parisc.c
7735 +++ b/arch/parisc/kernel/sys_parisc.c
7736 @@ -89,6 +89,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7737 unsigned long task_size = TASK_SIZE;
7738 int do_color_align, last_mmap;
7739 struct vm_unmapped_area_info info;
7740 + unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7741
7742 if (len > task_size)
7743 return -ENOMEM;
7744 @@ -106,6 +107,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7745 goto found_addr;
7746 }
7747
7748 +#ifdef CONFIG_PAX_RANDMMAP
7749 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7750 +#endif
7751 +
7752 if (addr) {
7753 if (do_color_align && last_mmap)
7754 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7755 @@ -124,6 +129,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7756 info.high_limit = mmap_upper_limit();
7757 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7758 info.align_offset = shared_align_offset(last_mmap, pgoff);
7759 + info.threadstack_offset = offset;
7760 addr = vm_unmapped_area(&info);
7761
7762 found_addr:
7763 @@ -143,6 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7764 unsigned long addr = addr0;
7765 int do_color_align, last_mmap;
7766 struct vm_unmapped_area_info info;
7767 + unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7768
7769 #ifdef CONFIG_64BIT
7770 /* This should only ever run for 32-bit processes. */
7771 @@ -167,6 +174,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7772 }
7773
7774 /* requesting a specific address */
7775 +#ifdef CONFIG_PAX_RANDMMAP
7776 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7777 +#endif
7778 +
7779 if (addr) {
7780 if (do_color_align && last_mmap)
7781 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7782 @@ -184,6 +195,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7783 info.high_limit = mm->mmap_base;
7784 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7785 info.align_offset = shared_align_offset(last_mmap, pgoff);
7786 + info.threadstack_offset = offset;
7787 addr = vm_unmapped_area(&info);
7788 if (!(addr & ~PAGE_MASK))
7789 goto found_addr;
7790 @@ -249,6 +261,13 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7791 mm->mmap_legacy_base = mmap_legacy_base();
7792 mm->mmap_base = mmap_upper_limit();
7793
7794 +#ifdef CONFIG_PAX_RANDMMAP
7795 + if (mm->pax_flags & MF_PAX_RANDMMAP) {
7796 + mm->mmap_legacy_base += mm->delta_mmap;
7797 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7798 + }
7799 +#endif
7800 +
7801 if (mmap_is_legacy()) {
7802 mm->mmap_base = mm->mmap_legacy_base;
7803 mm->get_unmapped_area = arch_get_unmapped_area;
7804 diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
7805 index 47ee620..1107387 100644
7806 --- a/arch/parisc/kernel/traps.c
7807 +++ b/arch/parisc/kernel/traps.c
7808 @@ -726,9 +726,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
7809
7810 down_read(&current->mm->mmap_sem);
7811 vma = find_vma(current->mm,regs->iaoq[0]);
7812 - if (vma && (regs->iaoq[0] >= vma->vm_start)
7813 - && (vma->vm_flags & VM_EXEC)) {
7814 -
7815 + if (vma && (regs->iaoq[0] >= vma->vm_start)) {
7816 fault_address = regs->iaoq[0];
7817 fault_space = regs->iasq[0];
7818
7819 diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
7820 index 3ca9c11..d163ef7 100644
7821 --- a/arch/parisc/mm/fault.c
7822 +++ b/arch/parisc/mm/fault.c
7823 @@ -15,6 +15,7 @@
7824 #include <linux/sched.h>
7825 #include <linux/interrupt.h>
7826 #include <linux/module.h>
7827 +#include <linux/unistd.h>
7828
7829 #include <asm/uaccess.h>
7830 #include <asm/traps.h>
7831 @@ -50,7 +51,7 @@ int show_unhandled_signals = 1;
7832 static unsigned long
7833 parisc_acctyp(unsigned long code, unsigned int inst)
7834 {
7835 - if (code == 6 || code == 16)
7836 + if (code == 6 || code == 7 || code == 16)
7837 return VM_EXEC;
7838
7839 switch (inst & 0xf0000000) {
7840 @@ -136,6 +137,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
7841 }
7842 #endif
7843
7844 +#ifdef CONFIG_PAX_PAGEEXEC
7845 +/*
7846 + * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
7847 + *
7848 + * returns 1 when task should be killed
7849 + * 2 when rt_sigreturn trampoline was detected
7850 + * 3 when unpatched PLT trampoline was detected
7851 + */
7852 +static int pax_handle_fetch_fault(struct pt_regs *regs)
7853 +{
7854 +
7855 +#ifdef CONFIG_PAX_EMUPLT
7856 + int err;
7857 +
7858 + do { /* PaX: unpatched PLT emulation */
7859 + unsigned int bl, depwi;
7860 +
7861 + err = get_user(bl, (unsigned int *)instruction_pointer(regs));
7862 + err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
7863 +
7864 + if (err)
7865 + break;
7866 +
7867 + if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
7868 + unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
7869 +
7870 + err = get_user(ldw, (unsigned int *)addr);
7871 + err |= get_user(bv, (unsigned int *)(addr+4));
7872 + err |= get_user(ldw2, (unsigned int *)(addr+8));
7873 +
7874 + if (err)
7875 + break;
7876 +
7877 + if (ldw == 0x0E801096U &&
7878 + bv == 0xEAC0C000U &&
7879 + ldw2 == 0x0E881095U)
7880 + {
7881 + unsigned int resolver, map;
7882 +
7883 + err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
7884 + err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
7885 + if (err)
7886 + break;
7887 +
7888 + regs->gr[20] = instruction_pointer(regs)+8;
7889 + regs->gr[21] = map;
7890 + regs->gr[22] = resolver;
7891 + regs->iaoq[0] = resolver | 3UL;
7892 + regs->iaoq[1] = regs->iaoq[0] + 4;
7893 + return 3;
7894 + }
7895 + }
7896 + } while (0);
7897 +#endif
7898 +
7899 +#ifdef CONFIG_PAX_EMUTRAMP
7900 +
7901 +#ifndef CONFIG_PAX_EMUSIGRT
7902 + if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
7903 + return 1;
7904 +#endif
7905 +
7906 + do { /* PaX: rt_sigreturn emulation */
7907 + unsigned int ldi1, ldi2, bel, nop;
7908 +
7909 + err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
7910 + err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
7911 + err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
7912 + err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
7913 +
7914 + if (err)
7915 + break;
7916 +
7917 + if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
7918 + ldi2 == 0x3414015AU &&
7919 + bel == 0xE4008200U &&
7920 + nop == 0x08000240U)
7921 + {
7922 + regs->gr[25] = (ldi1 & 2) >> 1;
7923 + regs->gr[20] = __NR_rt_sigreturn;
7924 + regs->gr[31] = regs->iaoq[1] + 16;
7925 + regs->sr[0] = regs->iasq[1];
7926 + regs->iaoq[0] = 0x100UL;
7927 + regs->iaoq[1] = regs->iaoq[0] + 4;
7928 + regs->iasq[0] = regs->sr[2];
7929 + regs->iasq[1] = regs->sr[2];
7930 + return 2;
7931 + }
7932 + } while (0);
7933 +#endif
7934 +
7935 + return 1;
7936 +}
7937 +
7938 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
7939 +{
7940 + unsigned long i;
7941 +
7942 + printk(KERN_ERR "PAX: bytes at PC: ");
7943 + for (i = 0; i < 5; i++) {
7944 + unsigned int c;
7945 + if (get_user(c, (unsigned int *)pc+i))
7946 + printk(KERN_CONT "???????? ");
7947 + else
7948 + printk(KERN_CONT "%08x ", c);
7949 + }
7950 + printk("\n");
7951 +}
7952 +#endif
7953 +
7954 int fixup_exception(struct pt_regs *regs)
7955 {
7956 const struct exception_table_entry *fix;
7957 @@ -234,8 +345,33 @@ retry:
7958
7959 good_area:
7960
7961 - if ((vma->vm_flags & acc_type) != acc_type)
7962 + if ((vma->vm_flags & acc_type) != acc_type) {
7963 +
7964 +#ifdef CONFIG_PAX_PAGEEXEC
7965 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
7966 + (address & ~3UL) == instruction_pointer(regs))
7967 + {
7968 + up_read(&mm->mmap_sem);
7969 + switch (pax_handle_fetch_fault(regs)) {
7970 +
7971 +#ifdef CONFIG_PAX_EMUPLT
7972 + case 3:
7973 + return;
7974 +#endif
7975 +
7976 +#ifdef CONFIG_PAX_EMUTRAMP
7977 + case 2:
7978 + return;
7979 +#endif
7980 +
7981 + }
7982 + pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
7983 + do_group_exit(SIGKILL);
7984 + }
7985 +#endif
7986 +
7987 goto bad_area;
7988 + }
7989
7990 /*
7991 * If for any reason at all we couldn't handle the fault, make
7992 diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
7993 index e099899..457d6a8 100644
7994 --- a/arch/powerpc/Kconfig
7995 +++ b/arch/powerpc/Kconfig
7996 @@ -397,6 +397,7 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
7997 config KEXEC
7998 bool "kexec system call"
7999 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
8000 + depends on !GRKERNSEC_KMEM
8001 help
8002 kexec is a system call that implements the ability to shutdown your
8003 current kernel, and to start another kernel. It is like a reboot
8004 diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
8005 index e3b1d41..8e81edf 100644
8006 --- a/arch/powerpc/include/asm/atomic.h
8007 +++ b/arch/powerpc/include/asm/atomic.h
8008 @@ -523,6 +523,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
8009 return t1;
8010 }
8011
8012 +#define atomic64_read_unchecked(v) atomic64_read(v)
8013 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
8014 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
8015 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
8016 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
8017 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
8018 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
8019 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
8020 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
8021 +
8022 #endif /* __powerpc64__ */
8023
8024 #endif /* __KERNEL__ */
8025 diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
8026 index f89da80..7f5b05a 100644
8027 --- a/arch/powerpc/include/asm/barrier.h
8028 +++ b/arch/powerpc/include/asm/barrier.h
8029 @@ -73,7 +73,7 @@
8030 do { \
8031 compiletime_assert_atomic_type(*p); \
8032 __lwsync(); \
8033 - ACCESS_ONCE(*p) = (v); \
8034 + ACCESS_ONCE_RW(*p) = (v); \
8035 } while (0)
8036
8037 #define smp_load_acquire(p) \
8038 diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
8039 index ed0afc1..0332825 100644
8040 --- a/arch/powerpc/include/asm/cache.h
8041 +++ b/arch/powerpc/include/asm/cache.h
8042 @@ -3,6 +3,7 @@
8043
8044 #ifdef __KERNEL__
8045
8046 +#include <linux/const.h>
8047
8048 /* bytes per L1 cache line */
8049 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
8050 @@ -22,7 +23,7 @@
8051 #define L1_CACHE_SHIFT 7
8052 #endif
8053
8054 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
8055 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
8056
8057 #define SMP_CACHE_BYTES L1_CACHE_BYTES
8058
8059 diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
8060 index 935b5e7..7001d2d 100644
8061 --- a/arch/powerpc/include/asm/elf.h
8062 +++ b/arch/powerpc/include/asm/elf.h
8063 @@ -28,8 +28,19 @@
8064 the loader. We need to make sure that it is out of the way of the program
8065 that it will "exec", and that there is sufficient room for the brk. */
8066
8067 -extern unsigned long randomize_et_dyn(unsigned long base);
8068 -#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000))
8069 +#define ELF_ET_DYN_BASE (0x20000000)
8070 +
8071 +#ifdef CONFIG_PAX_ASLR
8072 +#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
8073 +
8074 +#ifdef __powerpc64__
8075 +#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28)
8076 +#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28)
8077 +#else
8078 +#define PAX_DELTA_MMAP_LEN 15
8079 +#define PAX_DELTA_STACK_LEN 15
8080 +#endif
8081 +#endif
8082
8083 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
8084
8085 @@ -127,10 +138,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
8086 (0x7ff >> (PAGE_SHIFT - 12)) : \
8087 (0x3ffff >> (PAGE_SHIFT - 12)))
8088
8089 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
8090 -#define arch_randomize_brk arch_randomize_brk
8091 -
8092 -
8093 #ifdef CONFIG_SPU_BASE
8094 /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */
8095 #define NT_SPU 1
8096 diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
8097 index 8196e9c..d83a9f3 100644
8098 --- a/arch/powerpc/include/asm/exec.h
8099 +++ b/arch/powerpc/include/asm/exec.h
8100 @@ -4,6 +4,6 @@
8101 #ifndef _ASM_POWERPC_EXEC_H
8102 #define _ASM_POWERPC_EXEC_H
8103
8104 -extern unsigned long arch_align_stack(unsigned long sp);
8105 +#define arch_align_stack(x) ((x) & ~0xfUL)
8106
8107 #endif /* _ASM_POWERPC_EXEC_H */
8108 diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
8109 index 5acabbd..7ea14fa 100644
8110 --- a/arch/powerpc/include/asm/kmap_types.h
8111 +++ b/arch/powerpc/include/asm/kmap_types.h
8112 @@ -10,7 +10,7 @@
8113 * 2 of the License, or (at your option) any later version.
8114 */
8115
8116 -#define KM_TYPE_NR 16
8117 +#define KM_TYPE_NR 17
8118
8119 #endif /* __KERNEL__ */
8120 #endif /* _ASM_POWERPC_KMAP_TYPES_H */
8121 diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
8122 index b8da913..60b608a 100644
8123 --- a/arch/powerpc/include/asm/local.h
8124 +++ b/arch/powerpc/include/asm/local.h
8125 @@ -9,15 +9,26 @@ typedef struct
8126 atomic_long_t a;
8127 } local_t;
8128
8129 +typedef struct
8130 +{
8131 + atomic_long_unchecked_t a;
8132 +} local_unchecked_t;
8133 +
8134 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
8135
8136 #define local_read(l) atomic_long_read(&(l)->a)
8137 +#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
8138 #define local_set(l,i) atomic_long_set(&(l)->a, (i))
8139 +#define local_set_unchecked(l,i) atomic_long_set_unchecked(&(l)->a, (i))
8140
8141 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
8142 +#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
8143 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
8144 +#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
8145 #define local_inc(l) atomic_long_inc(&(l)->a)
8146 +#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
8147 #define local_dec(l) atomic_long_dec(&(l)->a)
8148 +#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
8149
8150 static __inline__ long local_add_return(long a, local_t *l)
8151 {
8152 @@ -35,6 +46,7 @@ static __inline__ long local_add_return(long a, local_t *l)
8153
8154 return t;
8155 }
8156 +#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
8157
8158 #define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
8159
8160 @@ -54,6 +66,7 @@ static __inline__ long local_sub_return(long a, local_t *l)
8161
8162 return t;
8163 }
8164 +#define local_sub_return_unchecked(i, l) atomic_long_sub_return_unchecked((i), (&(l)->a))
8165
8166 static __inline__ long local_inc_return(local_t *l)
8167 {
8168 @@ -101,6 +114,8 @@ static __inline__ long local_dec_return(local_t *l)
8169
8170 #define local_cmpxchg(l, o, n) \
8171 (cmpxchg_local(&((l)->a.counter), (o), (n)))
8172 +#define local_cmpxchg_unchecked(l, o, n) \
8173 + (cmpxchg_local(&((l)->a.counter), (o), (n)))
8174 #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
8175
8176 /**
8177 diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
8178 index 8565c25..2865190 100644
8179 --- a/arch/powerpc/include/asm/mman.h
8180 +++ b/arch/powerpc/include/asm/mman.h
8181 @@ -24,7 +24,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
8182 }
8183 #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
8184
8185 -static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
8186 +static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
8187 {
8188 return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
8189 }
8190 diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
8191 index 32e4e21..62afb12 100644
8192 --- a/arch/powerpc/include/asm/page.h
8193 +++ b/arch/powerpc/include/asm/page.h
8194 @@ -230,8 +230,9 @@ extern long long virt_phys_offset;
8195 * and needs to be executable. This means the whole heap ends
8196 * up being executable.
8197 */
8198 -#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8199 - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8200 +#define VM_DATA_DEFAULT_FLAGS32 \
8201 + (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8202 + VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8203
8204 #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8205 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8206 @@ -259,6 +260,9 @@ extern long long virt_phys_offset;
8207 #define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
8208 #endif
8209
8210 +#define ktla_ktva(addr) (addr)
8211 +#define ktva_ktla(addr) (addr)
8212 +
8213 #ifndef CONFIG_PPC_BOOK3S_64
8214 /*
8215 * Use the top bit of the higher-level page table entries to indicate whether
8216 diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
8217 index 88693ce..ac6f9ab 100644
8218 --- a/arch/powerpc/include/asm/page_64.h
8219 +++ b/arch/powerpc/include/asm/page_64.h
8220 @@ -153,15 +153,18 @@ do { \
8221 * stack by default, so in the absence of a PT_GNU_STACK program header
8222 * we turn execute permission off.
8223 */
8224 -#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8225 - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8226 +#define VM_STACK_DEFAULT_FLAGS32 \
8227 + (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8228 + VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8229
8230 #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8231 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8232
8233 +#ifndef CONFIG_PAX_PAGEEXEC
8234 #define VM_STACK_DEFAULT_FLAGS \
8235 (is_32bit_task() ? \
8236 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
8237 +#endif
8238
8239 #include <asm-generic/getorder.h>
8240
8241 diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
8242 index 4b0be20..c15a27d 100644
8243 --- a/arch/powerpc/include/asm/pgalloc-64.h
8244 +++ b/arch/powerpc/include/asm/pgalloc-64.h
8245 @@ -54,6 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
8246 #ifndef CONFIG_PPC_64K_PAGES
8247
8248 #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD)
8249 +#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD))
8250
8251 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
8252 {
8253 @@ -71,6 +72,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8254 pud_set(pud, (unsigned long)pmd);
8255 }
8256
8257 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8258 +{
8259 + pud_populate(mm, pud, pmd);
8260 +}
8261 +
8262 #define pmd_populate(mm, pmd, pte_page) \
8263 pmd_populate_kernel(mm, pmd, page_address(pte_page))
8264 #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
8265 @@ -173,6 +179,7 @@ extern void __tlb_remove_table(void *_table);
8266 #endif
8267
8268 #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd)
8269 +#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
8270
8271 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
8272 pte_t *pte)
8273 diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
8274 index 3ebb188..e17dddf 100644
8275 --- a/arch/powerpc/include/asm/pgtable.h
8276 +++ b/arch/powerpc/include/asm/pgtable.h
8277 @@ -2,6 +2,7 @@
8278 #define _ASM_POWERPC_PGTABLE_H
8279 #ifdef __KERNEL__
8280
8281 +#include <linux/const.h>
8282 #ifndef __ASSEMBLY__
8283 #include <linux/mmdebug.h>
8284 #include <asm/processor.h> /* For TASK_SIZE */
8285 diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
8286 index 4aad413..85d86bf 100644
8287 --- a/arch/powerpc/include/asm/pte-hash32.h
8288 +++ b/arch/powerpc/include/asm/pte-hash32.h
8289 @@ -21,6 +21,7 @@
8290 #define _PAGE_FILE 0x004 /* when !present: nonlinear file mapping */
8291 #define _PAGE_USER 0x004 /* usermode access allowed */
8292 #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */
8293 +#define _PAGE_EXEC _PAGE_GUARDED
8294 #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */
8295 #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */
8296 #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */
8297 diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
8298 index e5d2e0b..9ac74b1 100644
8299 --- a/arch/powerpc/include/asm/reg.h
8300 +++ b/arch/powerpc/include/asm/reg.h
8301 @@ -249,6 +249,7 @@
8302 #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
8303 #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */
8304 #define DSISR_NOHPTE 0x40000000 /* no translation found */
8305 +#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */
8306 #define DSISR_PROTFAULT 0x08000000 /* protection fault */
8307 #define DSISR_ISSTORE 0x02000000 /* access was a store */
8308 #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
8309 diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
8310 index ff51046..b982dd4 100644
8311 --- a/arch/powerpc/include/asm/smp.h
8312 +++ b/arch/powerpc/include/asm/smp.h
8313 @@ -51,7 +51,7 @@ struct smp_ops_t {
8314 int (*cpu_disable)(void);
8315 void (*cpu_die)(unsigned int nr);
8316 int (*cpu_bootable)(unsigned int nr);
8317 -};
8318 +} __no_const;
8319
8320 extern void smp_send_debugger_break(void);
8321 extern void start_secondary_resume(void);
8322 diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
8323 index b034ecd..af7e31f 100644
8324 --- a/arch/powerpc/include/asm/thread_info.h
8325 +++ b/arch/powerpc/include/asm/thread_info.h
8326 @@ -107,6 +107,8 @@ static inline struct thread_info *current_thread_info(void)
8327 #if defined(CONFIG_PPC64)
8328 #define TIF_ELF2ABI 18 /* function descriptors must die! */
8329 #endif
8330 +/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
8331 +#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
8332
8333 /* as above, but as bit values */
8334 #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
8335 @@ -125,9 +127,10 @@ static inline struct thread_info *current_thread_info(void)
8336 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
8337 #define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE)
8338 #define _TIF_NOHZ (1<<TIF_NOHZ)
8339 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
8340 #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
8341 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
8342 - _TIF_NOHZ)
8343 + _TIF_NOHZ | _TIF_GRSEC_SETXID)
8344
8345 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
8346 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
8347 diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
8348 index 9485b43..3bd3c16 100644
8349 --- a/arch/powerpc/include/asm/uaccess.h
8350 +++ b/arch/powerpc/include/asm/uaccess.h
8351 @@ -58,6 +58,7 @@
8352
8353 #endif
8354
8355 +#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
8356 #define access_ok(type, addr, size) \
8357 (__chk_user_ptr(addr), \
8358 __access_ok((__force unsigned long)(addr), (size), get_fs()))
8359 @@ -318,52 +319,6 @@ do { \
8360 extern unsigned long __copy_tofrom_user(void __user *to,
8361 const void __user *from, unsigned long size);
8362
8363 -#ifndef __powerpc64__
8364 -
8365 -static inline unsigned long copy_from_user(void *to,
8366 - const void __user *from, unsigned long n)
8367 -{
8368 - unsigned long over;
8369 -
8370 - if (access_ok(VERIFY_READ, from, n))
8371 - return __copy_tofrom_user((__force void __user *)to, from, n);
8372 - if ((unsigned long)from < TASK_SIZE) {
8373 - over = (unsigned long)from + n - TASK_SIZE;
8374 - return __copy_tofrom_user((__force void __user *)to, from,
8375 - n - over) + over;
8376 - }
8377 - return n;
8378 -}
8379 -
8380 -static inline unsigned long copy_to_user(void __user *to,
8381 - const void *from, unsigned long n)
8382 -{
8383 - unsigned long over;
8384 -
8385 - if (access_ok(VERIFY_WRITE, to, n))
8386 - return __copy_tofrom_user(to, (__force void __user *)from, n);
8387 - if ((unsigned long)to < TASK_SIZE) {
8388 - over = (unsigned long)to + n - TASK_SIZE;
8389 - return __copy_tofrom_user(to, (__force void __user *)from,
8390 - n - over) + over;
8391 - }
8392 - return n;
8393 -}
8394 -
8395 -#else /* __powerpc64__ */
8396 -
8397 -#define __copy_in_user(to, from, size) \
8398 - __copy_tofrom_user((to), (from), (size))
8399 -
8400 -extern unsigned long copy_from_user(void *to, const void __user *from,
8401 - unsigned long n);
8402 -extern unsigned long copy_to_user(void __user *to, const void *from,
8403 - unsigned long n);
8404 -extern unsigned long copy_in_user(void __user *to, const void __user *from,
8405 - unsigned long n);
8406 -
8407 -#endif /* __powerpc64__ */
8408 -
8409 static inline unsigned long __copy_from_user_inatomic(void *to,
8410 const void __user *from, unsigned long n)
8411 {
8412 @@ -387,6 +342,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
8413 if (ret == 0)
8414 return 0;
8415 }
8416 +
8417 + if (!__builtin_constant_p(n))
8418 + check_object_size(to, n, false);
8419 +
8420 return __copy_tofrom_user((__force void __user *)to, from, n);
8421 }
8422
8423 @@ -413,6 +372,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
8424 if (ret == 0)
8425 return 0;
8426 }
8427 +
8428 + if (!__builtin_constant_p(n))
8429 + check_object_size(from, n, true);
8430 +
8431 return __copy_tofrom_user(to, (__force const void __user *)from, n);
8432 }
8433
8434 @@ -430,6 +393,92 @@ static inline unsigned long __copy_to_user(void __user *to,
8435 return __copy_to_user_inatomic(to, from, size);
8436 }
8437
8438 +#ifndef __powerpc64__
8439 +
8440 +static inline unsigned long __must_check copy_from_user(void *to,
8441 + const void __user *from, unsigned long n)
8442 +{
8443 + unsigned long over;
8444 +
8445 + if ((long)n < 0)
8446 + return n;
8447 +
8448 + if (access_ok(VERIFY_READ, from, n)) {
8449 + if (!__builtin_constant_p(n))
8450 + check_object_size(to, n, false);
8451 + return __copy_tofrom_user((__force void __user *)to, from, n);
8452 + }
8453 + if ((unsigned long)from < TASK_SIZE) {
8454 + over = (unsigned long)from + n - TASK_SIZE;
8455 + if (!__builtin_constant_p(n - over))
8456 + check_object_size(to, n - over, false);
8457 + return __copy_tofrom_user((__force void __user *)to, from,
8458 + n - over) + over;
8459 + }
8460 + return n;
8461 +}
8462 +
8463 +static inline unsigned long __must_check copy_to_user(void __user *to,
8464 + const void *from, unsigned long n)
8465 +{
8466 + unsigned long over;
8467 +
8468 + if ((long)n < 0)
8469 + return n;
8470 +
8471 + if (access_ok(VERIFY_WRITE, to, n)) {
8472 + if (!__builtin_constant_p(n))
8473 + check_object_size(from, n, true);
8474 + return __copy_tofrom_user(to, (__force void __user *)from, n);
8475 + }
8476 + if ((unsigned long)to < TASK_SIZE) {
8477 + over = (unsigned long)to + n - TASK_SIZE;
8478 + if (!__builtin_constant_p(n))
8479 + check_object_size(from, n - over, true);
8480 + return __copy_tofrom_user(to, (__force void __user *)from,
8481 + n - over) + over;
8482 + }
8483 + return n;
8484 +}
8485 +
8486 +#else /* __powerpc64__ */
8487 +
8488 +#define __copy_in_user(to, from, size) \
8489 + __copy_tofrom_user((to), (from), (size))
8490 +
8491 +static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
8492 +{
8493 + if ((long)n < 0 || n > INT_MAX)
8494 + return n;
8495 +
8496 + if (!__builtin_constant_p(n))
8497 + check_object_size(to, n, false);
8498 +
8499 + if (likely(access_ok(VERIFY_READ, from, n)))
8500 + n = __copy_from_user(to, from, n);
8501 + else
8502 + memset(to, 0, n);
8503 + return n;
8504 +}
8505 +
8506 +static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
8507 +{
8508 + if ((long)n < 0 || n > INT_MAX)
8509 + return n;
8510 +
8511 + if (likely(access_ok(VERIFY_WRITE, to, n))) {
8512 + if (!__builtin_constant_p(n))
8513 + check_object_size(from, n, true);
8514 + n = __copy_to_user(to, from, n);
8515 + }
8516 + return n;
8517 +}
8518 +
8519 +extern unsigned long copy_in_user(void __user *to, const void __user *from,
8520 + unsigned long n);
8521 +
8522 +#endif /* __powerpc64__ */
8523 +
8524 extern unsigned long __clear_user(void __user *addr, unsigned long size);
8525
8526 static inline unsigned long clear_user(void __user *addr, unsigned long size)
8527 diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
8528 index fcc9a89..07be2bb 100644
8529 --- a/arch/powerpc/kernel/Makefile
8530 +++ b/arch/powerpc/kernel/Makefile
8531 @@ -26,6 +26,8 @@ CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
8532 CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
8533 endif
8534
8535 +CFLAGS_REMOVE_prom_init.o += $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8536 +
8537 obj-y := cputable.o ptrace.o syscalls.o \
8538 irq.o align.o signal_32.o pmc.o vdso.o \
8539 process.o systbl.o idle.o \
8540 diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
8541 index c1bee3c..5b42583 100644
8542 --- a/arch/powerpc/kernel/exceptions-64e.S
8543 +++ b/arch/powerpc/kernel/exceptions-64e.S
8544 @@ -1010,6 +1010,7 @@ storage_fault_common:
8545 std r14,_DAR(r1)
8546 std r15,_DSISR(r1)
8547 addi r3,r1,STACK_FRAME_OVERHEAD
8548 + bl .save_nvgprs
8549 mr r4,r14
8550 mr r5,r15
8551 ld r14,PACA_EXGEN+EX_R14(r13)
8552 @@ -1018,8 +1019,7 @@ storage_fault_common:
8553 cmpdi r3,0
8554 bne- 1f
8555 b .ret_from_except_lite
8556 -1: bl .save_nvgprs
8557 - mr r5,r3
8558 +1: mr r5,r3
8559 addi r3,r1,STACK_FRAME_OVERHEAD
8560 ld r4,_DAR(r1)
8561 bl .bad_page_fault
8562 diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
8563 index 3afd391..18f9e36 100644
8564 --- a/arch/powerpc/kernel/exceptions-64s.S
8565 +++ b/arch/powerpc/kernel/exceptions-64s.S
8566 @@ -1587,10 +1587,10 @@ handle_page_fault:
8567 11: ld r4,_DAR(r1)
8568 ld r5,_DSISR(r1)
8569 addi r3,r1,STACK_FRAME_OVERHEAD
8570 + bl .save_nvgprs
8571 bl .do_page_fault
8572 cmpdi r3,0
8573 beq+ 12f
8574 - bl .save_nvgprs
8575 mr r5,r3
8576 addi r3,r1,STACK_FRAME_OVERHEAD
8577 lwz r4,_DAR(r1)
8578 diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
8579 index ca1cd74..6f0241a 100644
8580 --- a/arch/powerpc/kernel/irq.c
8581 +++ b/arch/powerpc/kernel/irq.c
8582 @@ -447,6 +447,8 @@ void migrate_irqs(void)
8583 }
8584 #endif
8585
8586 +extern void gr_handle_kernel_exploit(void);
8587 +
8588 static inline void check_stack_overflow(void)
8589 {
8590 #ifdef CONFIG_DEBUG_STACKOVERFLOW
8591 @@ -459,6 +461,7 @@ static inline void check_stack_overflow(void)
8592 printk("do_IRQ: stack overflow: %ld\n",
8593 sp - sizeof(struct thread_info));
8594 dump_stack();
8595 + gr_handle_kernel_exploit();
8596 }
8597 #endif
8598 }
8599 diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
8600 index 6cff040..74ac5d1 100644
8601 --- a/arch/powerpc/kernel/module_32.c
8602 +++ b/arch/powerpc/kernel/module_32.c
8603 @@ -161,7 +161,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
8604 me->arch.core_plt_section = i;
8605 }
8606 if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
8607 - printk("Module doesn't contain .plt or .init.plt sections.\n");
8608 + printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
8609 return -ENOEXEC;
8610 }
8611
8612 @@ -191,11 +191,16 @@ static uint32_t do_plt_call(void *location,
8613
8614 DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
8615 /* Init, or core PLT? */
8616 - if (location >= mod->module_core
8617 - && location < mod->module_core + mod->core_size)
8618 + if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
8619 + (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
8620 entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
8621 - else
8622 + else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
8623 + (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
8624 entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
8625 + else {
8626 + printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
8627 + return ~0UL;
8628 + }
8629
8630 /* Find this entry, or if that fails, the next avail. entry */
8631 while (entry->jump[0]) {
8632 @@ -299,7 +304,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
8633 }
8634 #ifdef CONFIG_DYNAMIC_FTRACE
8635 module->arch.tramp =
8636 - do_plt_call(module->module_core,
8637 + do_plt_call(module->module_core_rx,
8638 (unsigned long)ftrace_caller,
8639 sechdrs, module);
8640 #endif
8641 diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
8642 index 31d0215..206af70 100644
8643 --- a/arch/powerpc/kernel/process.c
8644 +++ b/arch/powerpc/kernel/process.c
8645 @@ -1031,8 +1031,8 @@ void show_regs(struct pt_regs * regs)
8646 * Lookup NIP late so we have the best change of getting the
8647 * above info out without failing
8648 */
8649 - printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
8650 - printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
8651 + printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
8652 + printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
8653 #endif
8654 show_stack(current, (unsigned long *) regs->gpr[1]);
8655 if (!user_mode(regs))
8656 @@ -1554,10 +1554,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8657 newsp = stack[0];
8658 ip = stack[STACK_FRAME_LR_SAVE];
8659 if (!firstframe || ip != lr) {
8660 - printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
8661 + printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
8662 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
8663 if ((ip == rth || ip == mrth) && curr_frame >= 0) {
8664 - printk(" (%pS)",
8665 + printk(" (%pA)",
8666 (void *)current->ret_stack[curr_frame].ret);
8667 curr_frame--;
8668 }
8669 @@ -1577,7 +1577,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8670 struct pt_regs *regs = (struct pt_regs *)
8671 (sp + STACK_FRAME_OVERHEAD);
8672 lr = regs->link;
8673 - printk("--- Exception: %lx at %pS\n LR = %pS\n",
8674 + printk("--- Exception: %lx at %pA\n LR = %pA\n",
8675 regs->trap, (void *)regs->nip, (void *)lr);
8676 firstframe = 1;
8677 }
8678 @@ -1613,58 +1613,3 @@ void notrace __ppc64_runlatch_off(void)
8679 mtspr(SPRN_CTRLT, ctrl);
8680 }
8681 #endif /* CONFIG_PPC64 */
8682 -
8683 -unsigned long arch_align_stack(unsigned long sp)
8684 -{
8685 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
8686 - sp -= get_random_int() & ~PAGE_MASK;
8687 - return sp & ~0xf;
8688 -}
8689 -
8690 -static inline unsigned long brk_rnd(void)
8691 -{
8692 - unsigned long rnd = 0;
8693 -
8694 - /* 8MB for 32bit, 1GB for 64bit */
8695 - if (is_32bit_task())
8696 - rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
8697 - else
8698 - rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
8699 -
8700 - return rnd << PAGE_SHIFT;
8701 -}
8702 -
8703 -unsigned long arch_randomize_brk(struct mm_struct *mm)
8704 -{
8705 - unsigned long base = mm->brk;
8706 - unsigned long ret;
8707 -
8708 -#ifdef CONFIG_PPC_STD_MMU_64
8709 - /*
8710 - * If we are using 1TB segments and we are allowed to randomise
8711 - * the heap, we can put it above 1TB so it is backed by a 1TB
8712 - * segment. Otherwise the heap will be in the bottom 1TB
8713 - * which always uses 256MB segments and this may result in a
8714 - * performance penalty.
8715 - */
8716 - if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
8717 - base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
8718 -#endif
8719 -
8720 - ret = PAGE_ALIGN(base + brk_rnd());
8721 -
8722 - if (ret < mm->brk)
8723 - return mm->brk;
8724 -
8725 - return ret;
8726 -}
8727 -
8728 -unsigned long randomize_et_dyn(unsigned long base)
8729 -{
8730 - unsigned long ret = PAGE_ALIGN(base + brk_rnd());
8731 -
8732 - if (ret < base)
8733 - return base;
8734 -
8735 - return ret;
8736 -}
8737 diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
8738 index 2e3d2bf..35df241 100644
8739 --- a/arch/powerpc/kernel/ptrace.c
8740 +++ b/arch/powerpc/kernel/ptrace.c
8741 @@ -1762,6 +1762,10 @@ long arch_ptrace(struct task_struct *child, long request,
8742 return ret;
8743 }
8744
8745 +#ifdef CONFIG_GRKERNSEC_SETXID
8746 +extern void gr_delayed_cred_worker(void);
8747 +#endif
8748 +
8749 /*
8750 * We must return the syscall number to actually look up in the table.
8751 * This can be -1L to skip running any syscall at all.
8752 @@ -1774,6 +1778,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
8753
8754 secure_computing_strict(regs->gpr[0]);
8755
8756 +#ifdef CONFIG_GRKERNSEC_SETXID
8757 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
8758 + gr_delayed_cred_worker();
8759 +#endif
8760 +
8761 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
8762 tracehook_report_syscall_entry(regs))
8763 /*
8764 @@ -1808,6 +1817,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
8765 {
8766 int step;
8767
8768 +#ifdef CONFIG_GRKERNSEC_SETXID
8769 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
8770 + gr_delayed_cred_worker();
8771 +#endif
8772 +
8773 audit_syscall_exit(regs);
8774
8775 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
8776 diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
8777 index 4e47db6..6dcc96e 100644
8778 --- a/arch/powerpc/kernel/signal_32.c
8779 +++ b/arch/powerpc/kernel/signal_32.c
8780 @@ -1013,7 +1013,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
8781 /* Save user registers on the stack */
8782 frame = &rt_sf->uc.uc_mcontext;
8783 addr = frame;
8784 - if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
8785 + if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
8786 sigret = 0;
8787 tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
8788 } else {
8789 diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
8790 index d501dc4..e5a0de0 100644
8791 --- a/arch/powerpc/kernel/signal_64.c
8792 +++ b/arch/powerpc/kernel/signal_64.c
8793 @@ -760,7 +760,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
8794 current->thread.fp_state.fpscr = 0;
8795
8796 /* Set up to return from userspace. */
8797 - if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
8798 + if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
8799 regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
8800 } else {
8801 err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
8802 diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
8803 index 1bd7ca2..9b78c2f 100644
8804 --- a/arch/powerpc/kernel/traps.c
8805 +++ b/arch/powerpc/kernel/traps.c
8806 @@ -142,6 +142,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
8807 return flags;
8808 }
8809
8810 +extern void gr_handle_kernel_exploit(void);
8811 +
8812 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
8813 int signr)
8814 {
8815 @@ -191,6 +193,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
8816 panic("Fatal exception in interrupt");
8817 if (panic_on_oops)
8818 panic("Fatal exception");
8819 +
8820 + gr_handle_kernel_exploit();
8821 +
8822 do_exit(signr);
8823 }
8824
8825 diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
8826 index ce74c33..0803371 100644
8827 --- a/arch/powerpc/kernel/vdso.c
8828 +++ b/arch/powerpc/kernel/vdso.c
8829 @@ -35,6 +35,7 @@
8830 #include <asm/vdso.h>
8831 #include <asm/vdso_datapage.h>
8832 #include <asm/setup.h>
8833 +#include <asm/mman.h>
8834
8835 #undef DEBUG
8836
8837 @@ -221,7 +222,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
8838 vdso_base = VDSO32_MBASE;
8839 #endif
8840
8841 - current->mm->context.vdso_base = 0;
8842 + current->mm->context.vdso_base = ~0UL;
8843
8844 /* vDSO has a problem and was disabled, just don't "enable" it for the
8845 * process
8846 @@ -241,7 +242,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
8847 vdso_base = get_unmapped_area(NULL, vdso_base,
8848 (vdso_pages << PAGE_SHIFT) +
8849 ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
8850 - 0, 0);
8851 + 0, MAP_PRIVATE | MAP_EXECUTABLE);
8852 if (IS_ERR_VALUE(vdso_base)) {
8853 rc = vdso_base;
8854 goto fail_mmapsem;
8855 diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
8856 index 3cf541a..ab2d825 100644
8857 --- a/arch/powerpc/kvm/powerpc.c
8858 +++ b/arch/powerpc/kvm/powerpc.c
8859 @@ -1153,7 +1153,7 @@ void kvmppc_init_lpid(unsigned long nr_lpids_param)
8860 }
8861 EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
8862
8863 -int kvm_arch_init(void *opaque)
8864 +int kvm_arch_init(const void *opaque)
8865 {
8866 return 0;
8867 }
8868 diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
8869 index 5eea6f3..5d10396 100644
8870 --- a/arch/powerpc/lib/usercopy_64.c
8871 +++ b/arch/powerpc/lib/usercopy_64.c
8872 @@ -9,22 +9,6 @@
8873 #include <linux/module.h>
8874 #include <asm/uaccess.h>
8875
8876 -unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
8877 -{
8878 - if (likely(access_ok(VERIFY_READ, from, n)))
8879 - n = __copy_from_user(to, from, n);
8880 - else
8881 - memset(to, 0, n);
8882 - return n;
8883 -}
8884 -
8885 -unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
8886 -{
8887 - if (likely(access_ok(VERIFY_WRITE, to, n)))
8888 - n = __copy_to_user(to, from, n);
8889 - return n;
8890 -}
8891 -
8892 unsigned long copy_in_user(void __user *to, const void __user *from,
8893 unsigned long n)
8894 {
8895 @@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
8896 return n;
8897 }
8898
8899 -EXPORT_SYMBOL(copy_from_user);
8900 -EXPORT_SYMBOL(copy_to_user);
8901 EXPORT_SYMBOL(copy_in_user);
8902
8903 diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
8904 index 51ab9e7..7d3c78b 100644
8905 --- a/arch/powerpc/mm/fault.c
8906 +++ b/arch/powerpc/mm/fault.c
8907 @@ -33,6 +33,10 @@
8908 #include <linux/magic.h>
8909 #include <linux/ratelimit.h>
8910 #include <linux/context_tracking.h>
8911 +#include <linux/slab.h>
8912 +#include <linux/pagemap.h>
8913 +#include <linux/compiler.h>
8914 +#include <linux/unistd.h>
8915
8916 #include <asm/firmware.h>
8917 #include <asm/page.h>
8918 @@ -69,6 +73,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
8919 }
8920 #endif
8921
8922 +#ifdef CONFIG_PAX_PAGEEXEC
8923 +/*
8924 + * PaX: decide what to do with offenders (regs->nip = fault address)
8925 + *
8926 + * returns 1 when task should be killed
8927 + */
8928 +static int pax_handle_fetch_fault(struct pt_regs *regs)
8929 +{
8930 + return 1;
8931 +}
8932 +
8933 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
8934 +{
8935 + unsigned long i;
8936 +
8937 + printk(KERN_ERR "PAX: bytes at PC: ");
8938 + for (i = 0; i < 5; i++) {
8939 + unsigned int c;
8940 + if (get_user(c, (unsigned int __user *)pc+i))
8941 + printk(KERN_CONT "???????? ");
8942 + else
8943 + printk(KERN_CONT "%08x ", c);
8944 + }
8945 + printk("\n");
8946 +}
8947 +#endif
8948 +
8949 /*
8950 * Check whether the instruction at regs->nip is a store using
8951 * an update addressing form which will update r1.
8952 @@ -216,7 +247,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
8953 * indicate errors in DSISR but can validly be set in SRR1.
8954 */
8955 if (trap == 0x400)
8956 - error_code &= 0x48200000;
8957 + error_code &= 0x58200000;
8958 else
8959 is_write = error_code & DSISR_ISSTORE;
8960 #else
8961 @@ -378,7 +409,7 @@ good_area:
8962 * "undefined". Of those that can be set, this is the only
8963 * one which seems bad.
8964 */
8965 - if (error_code & 0x10000000)
8966 + if (error_code & DSISR_GUARDED)
8967 /* Guarded storage error. */
8968 goto bad_area;
8969 #endif /* CONFIG_8xx */
8970 @@ -393,7 +424,7 @@ good_area:
8971 * processors use the same I/D cache coherency mechanism
8972 * as embedded.
8973 */
8974 - if (error_code & DSISR_PROTFAULT)
8975 + if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))
8976 goto bad_area;
8977 #endif /* CONFIG_PPC_STD_MMU */
8978
8979 @@ -483,6 +514,23 @@ bad_area:
8980 bad_area_nosemaphore:
8981 /* User mode accesses cause a SIGSEGV */
8982 if (user_mode(regs)) {
8983 +
8984 +#ifdef CONFIG_PAX_PAGEEXEC
8985 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
8986 +#ifdef CONFIG_PPC_STD_MMU
8987 + if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
8988 +#else
8989 + if (is_exec && regs->nip == address) {
8990 +#endif
8991 + switch (pax_handle_fetch_fault(regs)) {
8992 + }
8993 +
8994 + pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
8995 + do_group_exit(SIGKILL);
8996 + }
8997 + }
8998 +#endif
8999 +
9000 _exception(SIGSEGV, regs, code, address);
9001 goto bail;
9002 }
9003 diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
9004 index cb8bdbe..cde4bc7 100644
9005 --- a/arch/powerpc/mm/mmap.c
9006 +++ b/arch/powerpc/mm/mmap.c
9007 @@ -53,10 +53,14 @@ static inline int mmap_is_legacy(void)
9008 return sysctl_legacy_va_layout;
9009 }
9010
9011 -static unsigned long mmap_rnd(void)
9012 +static unsigned long mmap_rnd(struct mm_struct *mm)
9013 {
9014 unsigned long rnd = 0;
9015
9016 +#ifdef CONFIG_PAX_RANDMMAP
9017 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9018 +#endif
9019 +
9020 if (current->flags & PF_RANDOMIZE) {
9021 /* 8MB for 32bit, 1GB for 64bit */
9022 if (is_32bit_task())
9023 @@ -67,7 +71,7 @@ static unsigned long mmap_rnd(void)
9024 return rnd << PAGE_SHIFT;
9025 }
9026
9027 -static inline unsigned long mmap_base(void)
9028 +static inline unsigned long mmap_base(struct mm_struct *mm)
9029 {
9030 unsigned long gap = rlimit(RLIMIT_STACK);
9031
9032 @@ -76,7 +80,7 @@ static inline unsigned long mmap_base(void)
9033 else if (gap > MAX_GAP)
9034 gap = MAX_GAP;
9035
9036 - return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
9037 + return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd(mm));
9038 }
9039
9040 /*
9041 @@ -91,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9042 */
9043 if (mmap_is_legacy()) {
9044 mm->mmap_base = TASK_UNMAPPED_BASE;
9045 +
9046 +#ifdef CONFIG_PAX_RANDMMAP
9047 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9048 + mm->mmap_base += mm->delta_mmap;
9049 +#endif
9050 +
9051 mm->get_unmapped_area = arch_get_unmapped_area;
9052 } else {
9053 - mm->mmap_base = mmap_base();
9054 + mm->mmap_base = mmap_base(mm);
9055 +
9056 +#ifdef CONFIG_PAX_RANDMMAP
9057 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9058 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9059 +#endif
9060 +
9061 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9062 }
9063 }
9064 diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
9065 index b0c75cc..ef7fb93 100644
9066 --- a/arch/powerpc/mm/slice.c
9067 +++ b/arch/powerpc/mm/slice.c
9068 @@ -103,7 +103,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
9069 if ((mm->task_size - len) < addr)
9070 return 0;
9071 vma = find_vma(mm, addr);
9072 - return (!vma || (addr + len) <= vma->vm_start);
9073 + return check_heap_stack_gap(vma, addr, len, 0);
9074 }
9075
9076 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
9077 @@ -277,6 +277,12 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
9078 info.align_offset = 0;
9079
9080 addr = TASK_UNMAPPED_BASE;
9081 +
9082 +#ifdef CONFIG_PAX_RANDMMAP
9083 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9084 + addr += mm->delta_mmap;
9085 +#endif
9086 +
9087 while (addr < TASK_SIZE) {
9088 info.low_limit = addr;
9089 if (!slice_scan_available(addr, available, 1, &addr))
9090 @@ -410,6 +416,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
9091 if (fixed && addr > (mm->task_size - len))
9092 return -ENOMEM;
9093
9094 +#ifdef CONFIG_PAX_RANDMMAP
9095 + if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
9096 + addr = 0;
9097 +#endif
9098 +
9099 /* If hint, make sure it matches our alignment restrictions */
9100 if (!fixed && addr) {
9101 addr = _ALIGN_UP(addr, 1ul << pshift);
9102 diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
9103 index 4278acf..67fd0e6 100644
9104 --- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
9105 +++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
9106 @@ -400,8 +400,8 @@ static int scc_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
9107 }
9108
9109 static struct pci_ops scc_pciex_pci_ops = {
9110 - scc_pciex_read_config,
9111 - scc_pciex_write_config,
9112 + .read = scc_pciex_read_config,
9113 + .write = scc_pciex_write_config,
9114 };
9115
9116 static void pciex_clear_intr_all(unsigned int __iomem *base)
9117 diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
9118 index 9098692..3d54cd1 100644
9119 --- a/arch/powerpc/platforms/cell/spufs/file.c
9120 +++ b/arch/powerpc/platforms/cell/spufs/file.c
9121 @@ -280,9 +280,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
9122 return VM_FAULT_NOPAGE;
9123 }
9124
9125 -static int spufs_mem_mmap_access(struct vm_area_struct *vma,
9126 +static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
9127 unsigned long address,
9128 - void *buf, int len, int write)
9129 + void *buf, size_t len, int write)
9130 {
9131 struct spu_context *ctx = vma->vm_file->private_data;
9132 unsigned long offset = address - vma->vm_start;
9133 diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
9134 index 1d47061..0714963 100644
9135 --- a/arch/s390/include/asm/atomic.h
9136 +++ b/arch/s390/include/asm/atomic.h
9137 @@ -412,6 +412,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
9138 #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
9139 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
9140
9141 +#define atomic64_read_unchecked(v) atomic64_read(v)
9142 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
9143 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
9144 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
9145 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
9146 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
9147 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
9148 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
9149 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
9150 +
9151 #define smp_mb__before_atomic_dec() smp_mb()
9152 #define smp_mb__after_atomic_dec() smp_mb()
9153 #define smp_mb__before_atomic_inc() smp_mb()
9154 diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
9155 index 578680f..0eb3b11 100644
9156 --- a/arch/s390/include/asm/barrier.h
9157 +++ b/arch/s390/include/asm/barrier.h
9158 @@ -36,7 +36,7 @@
9159 do { \
9160 compiletime_assert_atomic_type(*p); \
9161 barrier(); \
9162 - ACCESS_ONCE(*p) = (v); \
9163 + ACCESS_ONCE_RW(*p) = (v); \
9164 } while (0)
9165
9166 #define smp_load_acquire(p) \
9167 diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
9168 index 4d7ccac..d03d0ad 100644
9169 --- a/arch/s390/include/asm/cache.h
9170 +++ b/arch/s390/include/asm/cache.h
9171 @@ -9,8 +9,10 @@
9172 #ifndef __ARCH_S390_CACHE_H
9173 #define __ARCH_S390_CACHE_H
9174
9175 -#define L1_CACHE_BYTES 256
9176 +#include <linux/const.h>
9177 +
9178 #define L1_CACHE_SHIFT 8
9179 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9180 #define NET_SKB_PAD 32
9181
9182 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9183 diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
9184 index 78f4f87..598ce39 100644
9185 --- a/arch/s390/include/asm/elf.h
9186 +++ b/arch/s390/include/asm/elf.h
9187 @@ -162,8 +162,14 @@ extern unsigned int vdso_enabled;
9188 the loader. We need to make sure that it is out of the way of the program
9189 that it will "exec", and that there is sufficient room for the brk. */
9190
9191 -extern unsigned long randomize_et_dyn(unsigned long base);
9192 -#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2))
9193 +#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2)
9194 +
9195 +#ifdef CONFIG_PAX_ASLR
9196 +#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
9197 +
9198 +#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9199 +#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9200 +#endif
9201
9202 /* This yields a mask that user programs can use to figure out what
9203 instruction set this CPU supports. */
9204 @@ -222,9 +228,6 @@ struct linux_binprm;
9205 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
9206 int arch_setup_additional_pages(struct linux_binprm *, int);
9207
9208 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
9209 -#define arch_randomize_brk arch_randomize_brk
9210 -
9211 void *fill_cpu_elf_notes(void *ptr, struct save_area *sa);
9212
9213 #endif
9214 diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
9215 index c4a93d6..4d2a9b4 100644
9216 --- a/arch/s390/include/asm/exec.h
9217 +++ b/arch/s390/include/asm/exec.h
9218 @@ -7,6 +7,6 @@
9219 #ifndef __ASM_EXEC_H
9220 #define __ASM_EXEC_H
9221
9222 -extern unsigned long arch_align_stack(unsigned long sp);
9223 +#define arch_align_stack(x) ((x) & ~0xfUL)
9224
9225 #endif /* __ASM_EXEC_H */
9226 diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
9227 index 1be64a1..086839d1 100644
9228 --- a/arch/s390/include/asm/uaccess.h
9229 +++ b/arch/s390/include/asm/uaccess.h
9230 @@ -59,6 +59,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
9231 __range_ok((unsigned long)(addr), (size)); \
9232 })
9233
9234 +#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
9235 #define access_ok(type, addr, size) __access_ok(addr, size)
9236
9237 /*
9238 @@ -245,6 +246,10 @@ static inline unsigned long __must_check
9239 copy_to_user(void __user *to, const void *from, unsigned long n)
9240 {
9241 might_fault();
9242 +
9243 + if ((long)n < 0)
9244 + return n;
9245 +
9246 return __copy_to_user(to, from, n);
9247 }
9248
9249 @@ -273,10 +278,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
9250 static inline unsigned long __must_check
9251 copy_from_user(void *to, const void __user *from, unsigned long n)
9252 {
9253 - unsigned int sz = __compiletime_object_size(to);
9254 + size_t sz = __compiletime_object_size(to);
9255
9256 might_fault();
9257 - if (unlikely(sz != -1 && sz < n)) {
9258 +
9259 + if ((long)n < 0)
9260 + return n;
9261 +
9262 + if (unlikely(sz != (size_t)-1 && sz < n)) {
9263 copy_from_user_overflow();
9264 return n;
9265 }
9266 diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
9267 index b89b591..fd9609d 100644
9268 --- a/arch/s390/kernel/module.c
9269 +++ b/arch/s390/kernel/module.c
9270 @@ -169,11 +169,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
9271
9272 /* Increase core size by size of got & plt and set start
9273 offsets for got and plt. */
9274 - me->core_size = ALIGN(me->core_size, 4);
9275 - me->arch.got_offset = me->core_size;
9276 - me->core_size += me->arch.got_size;
9277 - me->arch.plt_offset = me->core_size;
9278 - me->core_size += me->arch.plt_size;
9279 + me->core_size_rw = ALIGN(me->core_size_rw, 4);
9280 + me->arch.got_offset = me->core_size_rw;
9281 + me->core_size_rw += me->arch.got_size;
9282 + me->arch.plt_offset = me->core_size_rx;
9283 + me->core_size_rx += me->arch.plt_size;
9284 return 0;
9285 }
9286
9287 @@ -289,7 +289,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9288 if (info->got_initialized == 0) {
9289 Elf_Addr *gotent;
9290
9291 - gotent = me->module_core + me->arch.got_offset +
9292 + gotent = me->module_core_rw + me->arch.got_offset +
9293 info->got_offset;
9294 *gotent = val;
9295 info->got_initialized = 1;
9296 @@ -312,7 +312,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9297 rc = apply_rela_bits(loc, val, 0, 64, 0);
9298 else if (r_type == R_390_GOTENT ||
9299 r_type == R_390_GOTPLTENT) {
9300 - val += (Elf_Addr) me->module_core - loc;
9301 + val += (Elf_Addr) me->module_core_rw - loc;
9302 rc = apply_rela_bits(loc, val, 1, 32, 1);
9303 }
9304 break;
9305 @@ -325,7 +325,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9306 case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
9307 if (info->plt_initialized == 0) {
9308 unsigned int *ip;
9309 - ip = me->module_core + me->arch.plt_offset +
9310 + ip = me->module_core_rx + me->arch.plt_offset +
9311 info->plt_offset;
9312 #ifndef CONFIG_64BIT
9313 ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
9314 @@ -350,7 +350,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9315 val - loc + 0xffffUL < 0x1ffffeUL) ||
9316 (r_type == R_390_PLT32DBL &&
9317 val - loc + 0xffffffffULL < 0x1fffffffeULL)))
9318 - val = (Elf_Addr) me->module_core +
9319 + val = (Elf_Addr) me->module_core_rx +
9320 me->arch.plt_offset +
9321 info->plt_offset;
9322 val += rela->r_addend - loc;
9323 @@ -372,7 +372,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9324 case R_390_GOTOFF32: /* 32 bit offset to GOT. */
9325 case R_390_GOTOFF64: /* 64 bit offset to GOT. */
9326 val = val + rela->r_addend -
9327 - ((Elf_Addr) me->module_core + me->arch.got_offset);
9328 + ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
9329 if (r_type == R_390_GOTOFF16)
9330 rc = apply_rela_bits(loc, val, 0, 16, 0);
9331 else if (r_type == R_390_GOTOFF32)
9332 @@ -382,7 +382,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9333 break;
9334 case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
9335 case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
9336 - val = (Elf_Addr) me->module_core + me->arch.got_offset +
9337 + val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
9338 rela->r_addend - loc;
9339 if (r_type == R_390_GOTPC)
9340 rc = apply_rela_bits(loc, val, 1, 32, 0);
9341 diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
9342 index dd14532..1dfc145 100644
9343 --- a/arch/s390/kernel/process.c
9344 +++ b/arch/s390/kernel/process.c
9345 @@ -242,37 +242,3 @@ unsigned long get_wchan(struct task_struct *p)
9346 }
9347 return 0;
9348 }
9349 -
9350 -unsigned long arch_align_stack(unsigned long sp)
9351 -{
9352 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
9353 - sp -= get_random_int() & ~PAGE_MASK;
9354 - return sp & ~0xf;
9355 -}
9356 -
9357 -static inline unsigned long brk_rnd(void)
9358 -{
9359 - /* 8MB for 32bit, 1GB for 64bit */
9360 - if (is_32bit_task())
9361 - return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
9362 - else
9363 - return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
9364 -}
9365 -
9366 -unsigned long arch_randomize_brk(struct mm_struct *mm)
9367 -{
9368 - unsigned long ret;
9369 -
9370 - ret = PAGE_ALIGN(mm->brk + brk_rnd());
9371 - return (ret > mm->brk) ? ret : mm->brk;
9372 -}
9373 -
9374 -unsigned long randomize_et_dyn(unsigned long base)
9375 -{
9376 - unsigned long ret;
9377 -
9378 - if (!(current->flags & PF_RANDOMIZE))
9379 - return base;
9380 - ret = PAGE_ALIGN(base + brk_rnd());
9381 - return (ret > base) ? ret : base;
9382 -}
9383 diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
9384 index 9b436c2..54fbf0a 100644
9385 --- a/arch/s390/mm/mmap.c
9386 +++ b/arch/s390/mm/mmap.c
9387 @@ -95,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9388 */
9389 if (mmap_is_legacy()) {
9390 mm->mmap_base = mmap_base_legacy();
9391 +
9392 +#ifdef CONFIG_PAX_RANDMMAP
9393 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9394 + mm->mmap_base += mm->delta_mmap;
9395 +#endif
9396 +
9397 mm->get_unmapped_area = arch_get_unmapped_area;
9398 } else {
9399 mm->mmap_base = mmap_base();
9400 +
9401 +#ifdef CONFIG_PAX_RANDMMAP
9402 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9403 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9404 +#endif
9405 +
9406 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9407 }
9408 }
9409 @@ -170,9 +182,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9410 */
9411 if (mmap_is_legacy()) {
9412 mm->mmap_base = mmap_base_legacy();
9413 +
9414 +#ifdef CONFIG_PAX_RANDMMAP
9415 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9416 + mm->mmap_base += mm->delta_mmap;
9417 +#endif
9418 +
9419 mm->get_unmapped_area = s390_get_unmapped_area;
9420 } else {
9421 mm->mmap_base = mmap_base();
9422 +
9423 +#ifdef CONFIG_PAX_RANDMMAP
9424 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9425 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9426 +#endif
9427 +
9428 mm->get_unmapped_area = s390_get_unmapped_area_topdown;
9429 }
9430 }
9431 diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
9432 index ae3d59f..f65f075 100644
9433 --- a/arch/score/include/asm/cache.h
9434 +++ b/arch/score/include/asm/cache.h
9435 @@ -1,7 +1,9 @@
9436 #ifndef _ASM_SCORE_CACHE_H
9437 #define _ASM_SCORE_CACHE_H
9438
9439 +#include <linux/const.h>
9440 +
9441 #define L1_CACHE_SHIFT 4
9442 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9443 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9444
9445 #endif /* _ASM_SCORE_CACHE_H */
9446 diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
9447 index f9f3cd5..58ff438 100644
9448 --- a/arch/score/include/asm/exec.h
9449 +++ b/arch/score/include/asm/exec.h
9450 @@ -1,6 +1,6 @@
9451 #ifndef _ASM_SCORE_EXEC_H
9452 #define _ASM_SCORE_EXEC_H
9453
9454 -extern unsigned long arch_align_stack(unsigned long sp);
9455 +#define arch_align_stack(x) (x)
9456
9457 #endif /* _ASM_SCORE_EXEC_H */
9458 diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
9459 index a1519ad3..e8ac1ff 100644
9460 --- a/arch/score/kernel/process.c
9461 +++ b/arch/score/kernel/process.c
9462 @@ -116,8 +116,3 @@ unsigned long get_wchan(struct task_struct *task)
9463
9464 return task_pt_regs(task)->cp0_epc;
9465 }
9466 -
9467 -unsigned long arch_align_stack(unsigned long sp)
9468 -{
9469 - return sp;
9470 -}
9471 diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
9472 index ef9e555..331bd29 100644
9473 --- a/arch/sh/include/asm/cache.h
9474 +++ b/arch/sh/include/asm/cache.h
9475 @@ -9,10 +9,11 @@
9476 #define __ASM_SH_CACHE_H
9477 #ifdef __KERNEL__
9478
9479 +#include <linux/const.h>
9480 #include <linux/init.h>
9481 #include <cpu/cache.h>
9482
9483 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9484 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9485
9486 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9487
9488 diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
9489 index 6777177..cb5e44f 100644
9490 --- a/arch/sh/mm/mmap.c
9491 +++ b/arch/sh/mm/mmap.c
9492 @@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9493 struct mm_struct *mm = current->mm;
9494 struct vm_area_struct *vma;
9495 int do_colour_align;
9496 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9497 struct vm_unmapped_area_info info;
9498
9499 if (flags & MAP_FIXED) {
9500 @@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9501 if (filp || (flags & MAP_SHARED))
9502 do_colour_align = 1;
9503
9504 +#ifdef CONFIG_PAX_RANDMMAP
9505 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9506 +#endif
9507 +
9508 if (addr) {
9509 if (do_colour_align)
9510 addr = COLOUR_ALIGN(addr, pgoff);
9511 @@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9512 addr = PAGE_ALIGN(addr);
9513
9514 vma = find_vma(mm, addr);
9515 - if (TASK_SIZE - len >= addr &&
9516 - (!vma || addr + len <= vma->vm_start))
9517 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9518 return addr;
9519 }
9520
9521 info.flags = 0;
9522 info.length = len;
9523 - info.low_limit = TASK_UNMAPPED_BASE;
9524 + info.low_limit = mm->mmap_base;
9525 info.high_limit = TASK_SIZE;
9526 info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
9527 info.align_offset = pgoff << PAGE_SHIFT;
9528 @@ -85,6 +89,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9529 struct mm_struct *mm = current->mm;
9530 unsigned long addr = addr0;
9531 int do_colour_align;
9532 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9533 struct vm_unmapped_area_info info;
9534
9535 if (flags & MAP_FIXED) {
9536 @@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9537 if (filp || (flags & MAP_SHARED))
9538 do_colour_align = 1;
9539
9540 +#ifdef CONFIG_PAX_RANDMMAP
9541 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9542 +#endif
9543 +
9544 /* requesting a specific address */
9545 if (addr) {
9546 if (do_colour_align)
9547 @@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9548 addr = PAGE_ALIGN(addr);
9549
9550 vma = find_vma(mm, addr);
9551 - if (TASK_SIZE - len >= addr &&
9552 - (!vma || addr + len <= vma->vm_start))
9553 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9554 return addr;
9555 }
9556
9557 @@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9558 VM_BUG_ON(addr != -ENOMEM);
9559 info.flags = 0;
9560 info.low_limit = TASK_UNMAPPED_BASE;
9561 +
9562 +#ifdef CONFIG_PAX_RANDMMAP
9563 + if (mm->pax_flags & MF_PAX_RANDMMAP)
9564 + info.low_limit += mm->delta_mmap;
9565 +#endif
9566 +
9567 info.high_limit = TASK_SIZE;
9568 addr = vm_unmapped_area(&info);
9569 }
9570 diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
9571 index be56a24..443328f 100644
9572 --- a/arch/sparc/include/asm/atomic_64.h
9573 +++ b/arch/sparc/include/asm/atomic_64.h
9574 @@ -14,18 +14,40 @@
9575 #define ATOMIC64_INIT(i) { (i) }
9576
9577 #define atomic_read(v) (*(volatile int *)&(v)->counter)
9578 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
9579 +{
9580 + return v->counter;
9581 +}
9582 #define atomic64_read(v) (*(volatile long *)&(v)->counter)
9583 +static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
9584 +{
9585 + return v->counter;
9586 +}
9587
9588 #define atomic_set(v, i) (((v)->counter) = i)
9589 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
9590 +{
9591 + v->counter = i;
9592 +}
9593 #define atomic64_set(v, i) (((v)->counter) = i)
9594 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
9595 +{
9596 + v->counter = i;
9597 +}
9598
9599 extern void atomic_add(int, atomic_t *);
9600 +extern void atomic_add_unchecked(int, atomic_unchecked_t *);
9601 extern void atomic64_add(long, atomic64_t *);
9602 +extern void atomic64_add_unchecked(long, atomic64_unchecked_t *);
9603 extern void atomic_sub(int, atomic_t *);
9604 +extern void atomic_sub_unchecked(int, atomic_unchecked_t *);
9605 extern void atomic64_sub(long, atomic64_t *);
9606 +extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *);
9607
9608 extern int atomic_add_ret(int, atomic_t *);
9609 +extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *);
9610 extern long atomic64_add_ret(long, atomic64_t *);
9611 +extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *);
9612 extern int atomic_sub_ret(int, atomic_t *);
9613 extern long atomic64_sub_ret(long, atomic64_t *);
9614
9615 @@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *);
9616 #define atomic64_dec_return(v) atomic64_sub_ret(1, v)
9617
9618 #define atomic_inc_return(v) atomic_add_ret(1, v)
9619 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
9620 +{
9621 + return atomic_add_ret_unchecked(1, v);
9622 +}
9623 #define atomic64_inc_return(v) atomic64_add_ret(1, v)
9624 +static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
9625 +{
9626 + return atomic64_add_ret_unchecked(1, v);
9627 +}
9628
9629 #define atomic_sub_return(i, v) atomic_sub_ret(i, v)
9630 #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v)
9631
9632 #define atomic_add_return(i, v) atomic_add_ret(i, v)
9633 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
9634 +{
9635 + return atomic_add_ret_unchecked(i, v);
9636 +}
9637 #define atomic64_add_return(i, v) atomic64_add_ret(i, v)
9638 +static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
9639 +{
9640 + return atomic64_add_ret_unchecked(i, v);
9641 +}
9642
9643 /*
9644 * atomic_inc_and_test - increment and test
9645 @@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *);
9646 * other cases.
9647 */
9648 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
9649 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
9650 +{
9651 + return atomic_inc_return_unchecked(v) == 0;
9652 +}
9653 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
9654
9655 #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0)
9656 @@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *);
9657 #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0)
9658
9659 #define atomic_inc(v) atomic_add(1, v)
9660 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
9661 +{
9662 + atomic_add_unchecked(1, v);
9663 +}
9664 #define atomic64_inc(v) atomic64_add(1, v)
9665 +static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
9666 +{
9667 + atomic64_add_unchecked(1, v);
9668 +}
9669
9670 #define atomic_dec(v) atomic_sub(1, v)
9671 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
9672 +{
9673 + atomic_sub_unchecked(1, v);
9674 +}
9675 #define atomic64_dec(v) atomic64_sub(1, v)
9676 +static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
9677 +{
9678 + atomic64_sub_unchecked(1, v);
9679 +}
9680
9681 #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0)
9682 #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0)
9683
9684 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
9685 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
9686 +{
9687 + return cmpxchg(&v->counter, old, new);
9688 +}
9689 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
9690 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
9691 +{
9692 + return xchg(&v->counter, new);
9693 +}
9694
9695 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9696 {
9697 - int c, old;
9698 + int c, old, new;
9699 c = atomic_read(v);
9700 for (;;) {
9701 - if (unlikely(c == (u)))
9702 + if (unlikely(c == u))
9703 break;
9704 - old = atomic_cmpxchg((v), c, c + (a));
9705 +
9706 + asm volatile("addcc %2, %0, %0\n"
9707 +
9708 +#ifdef CONFIG_PAX_REFCOUNT
9709 + "tvs %%icc, 6\n"
9710 +#endif
9711 +
9712 + : "=r" (new)
9713 + : "0" (c), "ir" (a)
9714 + : "cc");
9715 +
9716 + old = atomic_cmpxchg(v, c, new);
9717 if (likely(old == c))
9718 break;
9719 c = old;
9720 @@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9721 #define atomic64_cmpxchg(v, o, n) \
9722 ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
9723 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
9724 +static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
9725 +{
9726 + return xchg(&v->counter, new);
9727 +}
9728
9729 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
9730 {
9731 - long c, old;
9732 + long c, old, new;
9733 c = atomic64_read(v);
9734 for (;;) {
9735 - if (unlikely(c == (u)))
9736 + if (unlikely(c == u))
9737 break;
9738 - old = atomic64_cmpxchg((v), c, c + (a));
9739 +
9740 + asm volatile("addcc %2, %0, %0\n"
9741 +
9742 +#ifdef CONFIG_PAX_REFCOUNT
9743 + "tvs %%xcc, 6\n"
9744 +#endif
9745 +
9746 + : "=r" (new)
9747 + : "0" (c), "ir" (a)
9748 + : "cc");
9749 +
9750 + old = atomic64_cmpxchg(v, c, new);
9751 if (likely(old == c))
9752 break;
9753 c = old;
9754 }
9755 - return c != (u);
9756 + return c != u;
9757 }
9758
9759 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
9760 diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h
9761 index b5aad96..99d7465 100644
9762 --- a/arch/sparc/include/asm/barrier_64.h
9763 +++ b/arch/sparc/include/asm/barrier_64.h
9764 @@ -57,7 +57,7 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
9765 do { \
9766 compiletime_assert_atomic_type(*p); \
9767 barrier(); \
9768 - ACCESS_ONCE(*p) = (v); \
9769 + ACCESS_ONCE_RW(*p) = (v); \
9770 } while (0)
9771
9772 #define smp_load_acquire(p) \
9773 diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
9774 index 5bb6991..5c2132e 100644
9775 --- a/arch/sparc/include/asm/cache.h
9776 +++ b/arch/sparc/include/asm/cache.h
9777 @@ -7,10 +7,12 @@
9778 #ifndef _SPARC_CACHE_H
9779 #define _SPARC_CACHE_H
9780
9781 +#include <linux/const.h>
9782 +
9783 #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
9784
9785 #define L1_CACHE_SHIFT 5
9786 -#define L1_CACHE_BYTES 32
9787 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9788
9789 #ifdef CONFIG_SPARC32
9790 #define SMP_CACHE_BYTES_SHIFT 5
9791 diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
9792 index a24e41f..47677ff 100644
9793 --- a/arch/sparc/include/asm/elf_32.h
9794 +++ b/arch/sparc/include/asm/elf_32.h
9795 @@ -114,6 +114,13 @@ typedef struct {
9796
9797 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
9798
9799 +#ifdef CONFIG_PAX_ASLR
9800 +#define PAX_ELF_ET_DYN_BASE 0x10000UL
9801 +
9802 +#define PAX_DELTA_MMAP_LEN 16
9803 +#define PAX_DELTA_STACK_LEN 16
9804 +#endif
9805 +
9806 /* This yields a mask that user programs can use to figure out what
9807 instruction set this cpu supports. This can NOT be done in userspace
9808 on Sparc. */
9809 diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
9810 index 370ca1e..d4f4a98 100644
9811 --- a/arch/sparc/include/asm/elf_64.h
9812 +++ b/arch/sparc/include/asm/elf_64.h
9813 @@ -189,6 +189,13 @@ typedef struct {
9814 #define ELF_ET_DYN_BASE 0x0000010000000000UL
9815 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
9816
9817 +#ifdef CONFIG_PAX_ASLR
9818 +#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
9819 +
9820 +#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28)
9821 +#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29)
9822 +#endif
9823 +
9824 extern unsigned long sparc64_elf_hwcap;
9825 #define ELF_HWCAP sparc64_elf_hwcap
9826
9827 diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
9828 index 9b1c36d..209298b 100644
9829 --- a/arch/sparc/include/asm/pgalloc_32.h
9830 +++ b/arch/sparc/include/asm/pgalloc_32.h
9831 @@ -33,6 +33,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
9832 }
9833
9834 #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
9835 +#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
9836
9837 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
9838 unsigned long address)
9839 diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
9840 index bcfe063..b333142 100644
9841 --- a/arch/sparc/include/asm/pgalloc_64.h
9842 +++ b/arch/sparc/include/asm/pgalloc_64.h
9843 @@ -26,6 +26,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
9844 }
9845
9846 #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
9847 +#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD))
9848
9849 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
9850 {
9851 diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
9852 index 59ba6f6..4518128 100644
9853 --- a/arch/sparc/include/asm/pgtable.h
9854 +++ b/arch/sparc/include/asm/pgtable.h
9855 @@ -5,4 +5,8 @@
9856 #else
9857 #include <asm/pgtable_32.h>
9858 #endif
9859 +
9860 +#define ktla_ktva(addr) (addr)
9861 +#define ktva_ktla(addr) (addr)
9862 +
9863 #endif
9864 diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
9865 index 502f632..da1917f 100644
9866 --- a/arch/sparc/include/asm/pgtable_32.h
9867 +++ b/arch/sparc/include/asm/pgtable_32.h
9868 @@ -50,6 +50,9 @@ extern unsigned long calc_highpages(void);
9869 #define PAGE_SHARED SRMMU_PAGE_SHARED
9870 #define PAGE_COPY SRMMU_PAGE_COPY
9871 #define PAGE_READONLY SRMMU_PAGE_RDONLY
9872 +#define PAGE_SHARED_NOEXEC SRMMU_PAGE_SHARED_NOEXEC
9873 +#define PAGE_COPY_NOEXEC SRMMU_PAGE_COPY_NOEXEC
9874 +#define PAGE_READONLY_NOEXEC SRMMU_PAGE_RDONLY_NOEXEC
9875 #define PAGE_KERNEL SRMMU_PAGE_KERNEL
9876
9877 /* Top-level page directory - dummy used by init-mm.
9878 @@ -62,18 +65,18 @@ extern unsigned long ptr_in_current_pgd;
9879
9880 /* xwr */
9881 #define __P000 PAGE_NONE
9882 -#define __P001 PAGE_READONLY
9883 -#define __P010 PAGE_COPY
9884 -#define __P011 PAGE_COPY
9885 +#define __P001 PAGE_READONLY_NOEXEC
9886 +#define __P010 PAGE_COPY_NOEXEC
9887 +#define __P011 PAGE_COPY_NOEXEC
9888 #define __P100 PAGE_READONLY
9889 #define __P101 PAGE_READONLY
9890 #define __P110 PAGE_COPY
9891 #define __P111 PAGE_COPY
9892
9893 #define __S000 PAGE_NONE
9894 -#define __S001 PAGE_READONLY
9895 -#define __S010 PAGE_SHARED
9896 -#define __S011 PAGE_SHARED
9897 +#define __S001 PAGE_READONLY_NOEXEC
9898 +#define __S010 PAGE_SHARED_NOEXEC
9899 +#define __S011 PAGE_SHARED_NOEXEC
9900 #define __S100 PAGE_READONLY
9901 #define __S101 PAGE_READONLY
9902 #define __S110 PAGE_SHARED
9903 diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
9904 index 79da178..c2eede8 100644
9905 --- a/arch/sparc/include/asm/pgtsrmmu.h
9906 +++ b/arch/sparc/include/asm/pgtsrmmu.h
9907 @@ -115,6 +115,11 @@
9908 SRMMU_EXEC | SRMMU_REF)
9909 #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
9910 SRMMU_EXEC | SRMMU_REF)
9911 +
9912 +#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
9913 +#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
9914 +#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
9915 +
9916 #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
9917 SRMMU_DIRTY | SRMMU_REF)
9918
9919 diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
9920 index 9689176..63c18ea 100644
9921 --- a/arch/sparc/include/asm/spinlock_64.h
9922 +++ b/arch/sparc/include/asm/spinlock_64.h
9923 @@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
9924
9925 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
9926
9927 -static void inline arch_read_lock(arch_rwlock_t *lock)
9928 +static inline void arch_read_lock(arch_rwlock_t *lock)
9929 {
9930 unsigned long tmp1, tmp2;
9931
9932 __asm__ __volatile__ (
9933 "1: ldsw [%2], %0\n"
9934 " brlz,pn %0, 2f\n"
9935 -"4: add %0, 1, %1\n"
9936 +"4: addcc %0, 1, %1\n"
9937 +
9938 +#ifdef CONFIG_PAX_REFCOUNT
9939 +" tvs %%icc, 6\n"
9940 +#endif
9941 +
9942 " cas [%2], %0, %1\n"
9943 " cmp %0, %1\n"
9944 " bne,pn %%icc, 1b\n"
9945 @@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
9946 " .previous"
9947 : "=&r" (tmp1), "=&r" (tmp2)
9948 : "r" (lock)
9949 - : "memory");
9950 + : "memory", "cc");
9951 }
9952
9953 -static int inline arch_read_trylock(arch_rwlock_t *lock)
9954 +static inline int arch_read_trylock(arch_rwlock_t *lock)
9955 {
9956 int tmp1, tmp2;
9957
9958 @@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
9959 "1: ldsw [%2], %0\n"
9960 " brlz,a,pn %0, 2f\n"
9961 " mov 0, %0\n"
9962 -" add %0, 1, %1\n"
9963 +" addcc %0, 1, %1\n"
9964 +
9965 +#ifdef CONFIG_PAX_REFCOUNT
9966 +" tvs %%icc, 6\n"
9967 +#endif
9968 +
9969 " cas [%2], %0, %1\n"
9970 " cmp %0, %1\n"
9971 " bne,pn %%icc, 1b\n"
9972 @@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
9973 return tmp1;
9974 }
9975
9976 -static void inline arch_read_unlock(arch_rwlock_t *lock)
9977 +static inline void arch_read_unlock(arch_rwlock_t *lock)
9978 {
9979 unsigned long tmp1, tmp2;
9980
9981 __asm__ __volatile__(
9982 "1: lduw [%2], %0\n"
9983 -" sub %0, 1, %1\n"
9984 +" subcc %0, 1, %1\n"
9985 +
9986 +#ifdef CONFIG_PAX_REFCOUNT
9987 +" tvs %%icc, 6\n"
9988 +#endif
9989 +
9990 " cas [%2], %0, %1\n"
9991 " cmp %0, %1\n"
9992 " bne,pn %%xcc, 1b\n"
9993 @@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
9994 : "memory");
9995 }
9996
9997 -static void inline arch_write_lock(arch_rwlock_t *lock)
9998 +static inline void arch_write_lock(arch_rwlock_t *lock)
9999 {
10000 unsigned long mask, tmp1, tmp2;
10001
10002 @@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
10003 : "memory");
10004 }
10005
10006 -static void inline arch_write_unlock(arch_rwlock_t *lock)
10007 +static inline void arch_write_unlock(arch_rwlock_t *lock)
10008 {
10009 __asm__ __volatile__(
10010 " stw %%g0, [%0]"
10011 @@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
10012 : "memory");
10013 }
10014
10015 -static int inline arch_write_trylock(arch_rwlock_t *lock)
10016 +static inline int arch_write_trylock(arch_rwlock_t *lock)
10017 {
10018 unsigned long mask, tmp1, tmp2, result;
10019
10020 diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
10021 index 96efa7a..16858bf 100644
10022 --- a/arch/sparc/include/asm/thread_info_32.h
10023 +++ b/arch/sparc/include/asm/thread_info_32.h
10024 @@ -49,6 +49,8 @@ struct thread_info {
10025 unsigned long w_saved;
10026
10027 struct restart_block restart_block;
10028 +
10029 + unsigned long lowest_stack;
10030 };
10031
10032 /*
10033 diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
10034 index a5f01ac..703b554 100644
10035 --- a/arch/sparc/include/asm/thread_info_64.h
10036 +++ b/arch/sparc/include/asm/thread_info_64.h
10037 @@ -63,6 +63,8 @@ struct thread_info {
10038 struct pt_regs *kern_una_regs;
10039 unsigned int kern_una_insn;
10040
10041 + unsigned long lowest_stack;
10042 +
10043 unsigned long fpregs[0] __attribute__ ((aligned(64)));
10044 };
10045
10046 @@ -188,12 +190,13 @@ register struct thread_info *current_thread_info_reg asm("g6");
10047 #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
10048 /* flag bit 4 is available */
10049 #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
10050 -/* flag bit 6 is available */
10051 +#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
10052 #define TIF_32BIT 7 /* 32-bit binary */
10053 #define TIF_NOHZ 8 /* in adaptive nohz mode */
10054 #define TIF_SECCOMP 9 /* secure computing */
10055 #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */
10056 #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
10057 +
10058 /* NOTE: Thread flags >= 12 should be ones we have no interest
10059 * in using in assembly, else we can't use the mask as
10060 * an immediate value in instructions such as andcc.
10061 @@ -213,12 +216,18 @@ register struct thread_info *current_thread_info_reg asm("g6");
10062 #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
10063 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
10064 #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
10065 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
10066
10067 #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
10068 _TIF_DO_NOTIFY_RESUME_MASK | \
10069 _TIF_NEED_RESCHED)
10070 #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
10071
10072 +#define _TIF_WORK_SYSCALL \
10073 + (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
10074 + _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
10075 +
10076 +
10077 /*
10078 * Thread-synchronous status.
10079 *
10080 diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
10081 index 0167d26..767bb0c 100644
10082 --- a/arch/sparc/include/asm/uaccess.h
10083 +++ b/arch/sparc/include/asm/uaccess.h
10084 @@ -1,5 +1,6 @@
10085 #ifndef ___ASM_SPARC_UACCESS_H
10086 #define ___ASM_SPARC_UACCESS_H
10087 +
10088 #if defined(__sparc__) && defined(__arch64__)
10089 #include <asm/uaccess_64.h>
10090 #else
10091 diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
10092 index 53a28dd..50c38c3 100644
10093 --- a/arch/sparc/include/asm/uaccess_32.h
10094 +++ b/arch/sparc/include/asm/uaccess_32.h
10095 @@ -250,27 +250,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig
10096
10097 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
10098 {
10099 - if (n && __access_ok((unsigned long) to, n))
10100 + if ((long)n < 0)
10101 + return n;
10102 +
10103 + if (n && __access_ok((unsigned long) to, n)) {
10104 + if (!__builtin_constant_p(n))
10105 + check_object_size(from, n, true);
10106 return __copy_user(to, (__force void __user *) from, n);
10107 - else
10108 + } else
10109 return n;
10110 }
10111
10112 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
10113 {
10114 + if ((long)n < 0)
10115 + return n;
10116 +
10117 + if (!__builtin_constant_p(n))
10118 + check_object_size(from, n, true);
10119 +
10120 return __copy_user(to, (__force void __user *) from, n);
10121 }
10122
10123 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
10124 {
10125 - if (n && __access_ok((unsigned long) from, n))
10126 + if ((long)n < 0)
10127 + return n;
10128 +
10129 + if (n && __access_ok((unsigned long) from, n)) {
10130 + if (!__builtin_constant_p(n))
10131 + check_object_size(to, n, false);
10132 return __copy_user((__force void __user *) to, from, n);
10133 - else
10134 + } else
10135 return n;
10136 }
10137
10138 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
10139 {
10140 + if ((long)n < 0)
10141 + return n;
10142 +
10143 return __copy_user((__force void __user *) to, from, n);
10144 }
10145
10146 diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
10147 index ad7e178..c9e7423 100644
10148 --- a/arch/sparc/include/asm/uaccess_64.h
10149 +++ b/arch/sparc/include/asm/uaccess_64.h
10150 @@ -10,6 +10,7 @@
10151 #include <linux/compiler.h>
10152 #include <linux/string.h>
10153 #include <linux/thread_info.h>
10154 +#include <linux/kernel.h>
10155 #include <asm/asi.h>
10156 #include <asm/spitfire.h>
10157 #include <asm-generic/uaccess-unaligned.h>
10158 @@ -214,8 +215,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
10159 static inline unsigned long __must_check
10160 copy_from_user(void *to, const void __user *from, unsigned long size)
10161 {
10162 - unsigned long ret = ___copy_from_user(to, from, size);
10163 + unsigned long ret;
10164
10165 + if ((long)size < 0 || size > INT_MAX)
10166 + return size;
10167 +
10168 + if (!__builtin_constant_p(size))
10169 + check_object_size(to, size, false);
10170 +
10171 + ret = ___copy_from_user(to, from, size);
10172 if (unlikely(ret))
10173 ret = copy_from_user_fixup(to, from, size);
10174
10175 @@ -231,8 +239,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from,
10176 static inline unsigned long __must_check
10177 copy_to_user(void __user *to, const void *from, unsigned long size)
10178 {
10179 - unsigned long ret = ___copy_to_user(to, from, size);
10180 + unsigned long ret;
10181
10182 + if ((long)size < 0 || size > INT_MAX)
10183 + return size;
10184 +
10185 + if (!__builtin_constant_p(size))
10186 + check_object_size(from, size, true);
10187 +
10188 + ret = ___copy_to_user(to, from, size);
10189 if (unlikely(ret))
10190 ret = copy_to_user_fixup(to, from, size);
10191 return ret;
10192 diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
10193 index d15cc17..d0ae796 100644
10194 --- a/arch/sparc/kernel/Makefile
10195 +++ b/arch/sparc/kernel/Makefile
10196 @@ -4,7 +4,7 @@
10197 #
10198
10199 asflags-y := -ansi
10200 -ccflags-y := -Werror
10201 +#ccflags-y := -Werror
10202
10203 extra-y := head_$(BITS).o
10204
10205 diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
10206 index 510baec..9ff2607 100644
10207 --- a/arch/sparc/kernel/process_32.c
10208 +++ b/arch/sparc/kernel/process_32.c
10209 @@ -115,14 +115,14 @@ void show_regs(struct pt_regs *r)
10210
10211 printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
10212 r->psr, r->pc, r->npc, r->y, print_tainted());
10213 - printk("PC: <%pS>\n", (void *) r->pc);
10214 + printk("PC: <%pA>\n", (void *) r->pc);
10215 printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10216 r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
10217 r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
10218 printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10219 r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
10220 r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
10221 - printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
10222 + printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
10223
10224 printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10225 rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
10226 @@ -159,7 +159,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
10227 rw = (struct reg_window32 *) fp;
10228 pc = rw->ins[7];
10229 printk("[%08lx : ", pc);
10230 - printk("%pS ] ", (void *) pc);
10231 + printk("%pA ] ", (void *) pc);
10232 fp = rw->ins[6];
10233 } while (++count < 16);
10234 printk("\n");
10235 diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
10236 index d7b4967..2edf827 100644
10237 --- a/arch/sparc/kernel/process_64.c
10238 +++ b/arch/sparc/kernel/process_64.c
10239 @@ -161,7 +161,7 @@ static void show_regwindow(struct pt_regs *regs)
10240 printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
10241 rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
10242 if (regs->tstate & TSTATE_PRIV)
10243 - printk("I7: <%pS>\n", (void *) rwk->ins[7]);
10244 + printk("I7: <%pA>\n", (void *) rwk->ins[7]);
10245 }
10246
10247 void show_regs(struct pt_regs *regs)
10248 @@ -170,7 +170,7 @@ void show_regs(struct pt_regs *regs)
10249
10250 printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate,
10251 regs->tpc, regs->tnpc, regs->y, print_tainted());
10252 - printk("TPC: <%pS>\n", (void *) regs->tpc);
10253 + printk("TPC: <%pA>\n", (void *) regs->tpc);
10254 printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
10255 regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
10256 regs->u_regs[3]);
10257 @@ -183,7 +183,7 @@ void show_regs(struct pt_regs *regs)
10258 printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
10259 regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
10260 regs->u_regs[15]);
10261 - printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
10262 + printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
10263 show_regwindow(regs);
10264 show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
10265 }
10266 @@ -272,7 +272,7 @@ void arch_trigger_all_cpu_backtrace(void)
10267 ((tp && tp->task) ? tp->task->pid : -1));
10268
10269 if (gp->tstate & TSTATE_PRIV) {
10270 - printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
10271 + printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
10272 (void *) gp->tpc,
10273 (void *) gp->o7,
10274 (void *) gp->i7,
10275 diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
10276 index 79cc0d1..ec62734 100644
10277 --- a/arch/sparc/kernel/prom_common.c
10278 +++ b/arch/sparc/kernel/prom_common.c
10279 @@ -144,7 +144,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
10280
10281 unsigned int prom_early_allocated __initdata;
10282
10283 -static struct of_pdt_ops prom_sparc_ops __initdata = {
10284 +static struct of_pdt_ops prom_sparc_ops __initconst = {
10285 .nextprop = prom_common_nextprop,
10286 .getproplen = prom_getproplen,
10287 .getproperty = prom_getproperty,
10288 diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
10289 index c13c9f2..d572c34 100644
10290 --- a/arch/sparc/kernel/ptrace_64.c
10291 +++ b/arch/sparc/kernel/ptrace_64.c
10292 @@ -1060,6 +1060,10 @@ long arch_ptrace(struct task_struct *child, long request,
10293 return ret;
10294 }
10295
10296 +#ifdef CONFIG_GRKERNSEC_SETXID
10297 +extern void gr_delayed_cred_worker(void);
10298 +#endif
10299 +
10300 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10301 {
10302 int ret = 0;
10303 @@ -1070,6 +1074,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10304 if (test_thread_flag(TIF_NOHZ))
10305 user_exit();
10306
10307 +#ifdef CONFIG_GRKERNSEC_SETXID
10308 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10309 + gr_delayed_cred_worker();
10310 +#endif
10311 +
10312 if (test_thread_flag(TIF_SYSCALL_TRACE))
10313 ret = tracehook_report_syscall_entry(regs);
10314
10315 @@ -1093,6 +1102,11 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
10316 if (test_thread_flag(TIF_NOHZ))
10317 user_exit();
10318
10319 +#ifdef CONFIG_GRKERNSEC_SETXID
10320 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10321 + gr_delayed_cred_worker();
10322 +#endif
10323 +
10324 audit_syscall_exit(regs);
10325
10326 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
10327 diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
10328 index 745a363..b5566b1 100644
10329 --- a/arch/sparc/kernel/smp_64.c
10330 +++ b/arch/sparc/kernel/smp_64.c
10331 @@ -868,8 +868,8 @@ extern unsigned long xcall_flush_dcache_page_cheetah;
10332 extern unsigned long xcall_flush_dcache_page_spitfire;
10333
10334 #ifdef CONFIG_DEBUG_DCFLUSH
10335 -extern atomic_t dcpage_flushes;
10336 -extern atomic_t dcpage_flushes_xcall;
10337 +extern atomic_unchecked_t dcpage_flushes;
10338 +extern atomic_unchecked_t dcpage_flushes_xcall;
10339 #endif
10340
10341 static inline void __local_flush_dcache_page(struct page *page)
10342 @@ -893,7 +893,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10343 return;
10344
10345 #ifdef CONFIG_DEBUG_DCFLUSH
10346 - atomic_inc(&dcpage_flushes);
10347 + atomic_inc_unchecked(&dcpage_flushes);
10348 #endif
10349
10350 this_cpu = get_cpu();
10351 @@ -917,7 +917,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10352 xcall_deliver(data0, __pa(pg_addr),
10353 (u64) pg_addr, cpumask_of(cpu));
10354 #ifdef CONFIG_DEBUG_DCFLUSH
10355 - atomic_inc(&dcpage_flushes_xcall);
10356 + atomic_inc_unchecked(&dcpage_flushes_xcall);
10357 #endif
10358 }
10359 }
10360 @@ -936,7 +936,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10361 preempt_disable();
10362
10363 #ifdef CONFIG_DEBUG_DCFLUSH
10364 - atomic_inc(&dcpage_flushes);
10365 + atomic_inc_unchecked(&dcpage_flushes);
10366 #endif
10367 data0 = 0;
10368 pg_addr = page_address(page);
10369 @@ -953,7 +953,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10370 xcall_deliver(data0, __pa(pg_addr),
10371 (u64) pg_addr, cpu_online_mask);
10372 #ifdef CONFIG_DEBUG_DCFLUSH
10373 - atomic_inc(&dcpage_flushes_xcall);
10374 + atomic_inc_unchecked(&dcpage_flushes_xcall);
10375 #endif
10376 }
10377 __local_flush_dcache_page(page);
10378 diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
10379 index 3a8d184..49498a8 100644
10380 --- a/arch/sparc/kernel/sys_sparc_32.c
10381 +++ b/arch/sparc/kernel/sys_sparc_32.c
10382 @@ -52,7 +52,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10383 if (len > TASK_SIZE - PAGE_SIZE)
10384 return -ENOMEM;
10385 if (!addr)
10386 - addr = TASK_UNMAPPED_BASE;
10387 + addr = current->mm->mmap_base;
10388
10389 info.flags = 0;
10390 info.length = len;
10391 diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
10392 index beb0b5a..5a153f7 100644
10393 --- a/arch/sparc/kernel/sys_sparc_64.c
10394 +++ b/arch/sparc/kernel/sys_sparc_64.c
10395 @@ -88,13 +88,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10396 struct vm_area_struct * vma;
10397 unsigned long task_size = TASK_SIZE;
10398 int do_color_align;
10399 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10400 struct vm_unmapped_area_info info;
10401
10402 if (flags & MAP_FIXED) {
10403 /* We do not accept a shared mapping if it would violate
10404 * cache aliasing constraints.
10405 */
10406 - if ((flags & MAP_SHARED) &&
10407 + if ((filp || (flags & MAP_SHARED)) &&
10408 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10409 return -EINVAL;
10410 return addr;
10411 @@ -109,6 +110,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10412 if (filp || (flags & MAP_SHARED))
10413 do_color_align = 1;
10414
10415 +#ifdef CONFIG_PAX_RANDMMAP
10416 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10417 +#endif
10418 +
10419 if (addr) {
10420 if (do_color_align)
10421 addr = COLOR_ALIGN(addr, pgoff);
10422 @@ -116,22 +121,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10423 addr = PAGE_ALIGN(addr);
10424
10425 vma = find_vma(mm, addr);
10426 - if (task_size - len >= addr &&
10427 - (!vma || addr + len <= vma->vm_start))
10428 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10429 return addr;
10430 }
10431
10432 info.flags = 0;
10433 info.length = len;
10434 - info.low_limit = TASK_UNMAPPED_BASE;
10435 + info.low_limit = mm->mmap_base;
10436 info.high_limit = min(task_size, VA_EXCLUDE_START);
10437 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10438 info.align_offset = pgoff << PAGE_SHIFT;
10439 + info.threadstack_offset = offset;
10440 addr = vm_unmapped_area(&info);
10441
10442 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
10443 VM_BUG_ON(addr != -ENOMEM);
10444 info.low_limit = VA_EXCLUDE_END;
10445 +
10446 +#ifdef CONFIG_PAX_RANDMMAP
10447 + if (mm->pax_flags & MF_PAX_RANDMMAP)
10448 + info.low_limit += mm->delta_mmap;
10449 +#endif
10450 +
10451 info.high_limit = task_size;
10452 addr = vm_unmapped_area(&info);
10453 }
10454 @@ -149,6 +160,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10455 unsigned long task_size = STACK_TOP32;
10456 unsigned long addr = addr0;
10457 int do_color_align;
10458 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10459 struct vm_unmapped_area_info info;
10460
10461 /* This should only ever run for 32-bit processes. */
10462 @@ -158,7 +170,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10463 /* We do not accept a shared mapping if it would violate
10464 * cache aliasing constraints.
10465 */
10466 - if ((flags & MAP_SHARED) &&
10467 + if ((filp || (flags & MAP_SHARED)) &&
10468 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10469 return -EINVAL;
10470 return addr;
10471 @@ -171,6 +183,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10472 if (filp || (flags & MAP_SHARED))
10473 do_color_align = 1;
10474
10475 +#ifdef CONFIG_PAX_RANDMMAP
10476 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10477 +#endif
10478 +
10479 /* requesting a specific address */
10480 if (addr) {
10481 if (do_color_align)
10482 @@ -179,8 +195,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10483 addr = PAGE_ALIGN(addr);
10484
10485 vma = find_vma(mm, addr);
10486 - if (task_size - len >= addr &&
10487 - (!vma || addr + len <= vma->vm_start))
10488 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10489 return addr;
10490 }
10491
10492 @@ -190,6 +205,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10493 info.high_limit = mm->mmap_base;
10494 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10495 info.align_offset = pgoff << PAGE_SHIFT;
10496 + info.threadstack_offset = offset;
10497 addr = vm_unmapped_area(&info);
10498
10499 /*
10500 @@ -202,6 +218,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10501 VM_BUG_ON(addr != -ENOMEM);
10502 info.flags = 0;
10503 info.low_limit = TASK_UNMAPPED_BASE;
10504 +
10505 +#ifdef CONFIG_PAX_RANDMMAP
10506 + if (mm->pax_flags & MF_PAX_RANDMMAP)
10507 + info.low_limit += mm->delta_mmap;
10508 +#endif
10509 +
10510 info.high_limit = STACK_TOP32;
10511 addr = vm_unmapped_area(&info);
10512 }
10513 @@ -258,10 +280,14 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
10514 EXPORT_SYMBOL(get_fb_unmapped_area);
10515
10516 /* Essentially the same as PowerPC. */
10517 -static unsigned long mmap_rnd(void)
10518 +static unsigned long mmap_rnd(struct mm_struct *mm)
10519 {
10520 unsigned long rnd = 0UL;
10521
10522 +#ifdef CONFIG_PAX_RANDMMAP
10523 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10524 +#endif
10525 +
10526 if (current->flags & PF_RANDOMIZE) {
10527 unsigned long val = get_random_int();
10528 if (test_thread_flag(TIF_32BIT))
10529 @@ -274,7 +300,7 @@ static unsigned long mmap_rnd(void)
10530
10531 void arch_pick_mmap_layout(struct mm_struct *mm)
10532 {
10533 - unsigned long random_factor = mmap_rnd();
10534 + unsigned long random_factor = mmap_rnd(mm);
10535 unsigned long gap;
10536
10537 /*
10538 @@ -287,6 +313,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10539 gap == RLIM_INFINITY ||
10540 sysctl_legacy_va_layout) {
10541 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
10542 +
10543 +#ifdef CONFIG_PAX_RANDMMAP
10544 + if (mm->pax_flags & MF_PAX_RANDMMAP)
10545 + mm->mmap_base += mm->delta_mmap;
10546 +#endif
10547 +
10548 mm->get_unmapped_area = arch_get_unmapped_area;
10549 } else {
10550 /* We know it's 32-bit */
10551 @@ -298,6 +330,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10552 gap = (task_size / 6 * 5);
10553
10554 mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
10555 +
10556 +#ifdef CONFIG_PAX_RANDMMAP
10557 + if (mm->pax_flags & MF_PAX_RANDMMAP)
10558 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
10559 +#endif
10560 +
10561 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
10562 }
10563 }
10564 diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
10565 index 33a17e7..d87fb1f 100644
10566 --- a/arch/sparc/kernel/syscalls.S
10567 +++ b/arch/sparc/kernel/syscalls.S
10568 @@ -52,7 +52,7 @@ sys32_rt_sigreturn:
10569 #endif
10570 .align 32
10571 1: ldx [%g6 + TI_FLAGS], %l5
10572 - andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10573 + andcc %l5, _TIF_WORK_SYSCALL, %g0
10574 be,pt %icc, rtrap
10575 nop
10576 call syscall_trace_leave
10577 @@ -184,7 +184,7 @@ linux_sparc_syscall32:
10578
10579 srl %i3, 0, %o3 ! IEU0
10580 srl %i2, 0, %o2 ! IEU0 Group
10581 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10582 + andcc %l0, _TIF_WORK_SYSCALL, %g0
10583 bne,pn %icc, linux_syscall_trace32 ! CTI
10584 mov %i0, %l5 ! IEU1
10585 5: call %l7 ! CTI Group brk forced
10586 @@ -208,7 +208,7 @@ linux_sparc_syscall:
10587
10588 mov %i3, %o3 ! IEU1
10589 mov %i4, %o4 ! IEU0 Group
10590 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10591 + andcc %l0, _TIF_WORK_SYSCALL, %g0
10592 bne,pn %icc, linux_syscall_trace ! CTI Group
10593 mov %i0, %l5 ! IEU0
10594 2: call %l7 ! CTI Group brk forced
10595 @@ -223,7 +223,7 @@ ret_sys_call:
10596
10597 cmp %o0, -ERESTART_RESTARTBLOCK
10598 bgeu,pn %xcc, 1f
10599 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10600 + andcc %l0, _TIF_WORK_SYSCALL, %g0
10601 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
10602
10603 2:
10604 diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
10605 index 6629829..036032d 100644
10606 --- a/arch/sparc/kernel/traps_32.c
10607 +++ b/arch/sparc/kernel/traps_32.c
10608 @@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
10609 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
10610 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
10611
10612 +extern void gr_handle_kernel_exploit(void);
10613 +
10614 void die_if_kernel(char *str, struct pt_regs *regs)
10615 {
10616 static int die_counter;
10617 @@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs)
10618 count++ < 30 &&
10619 (((unsigned long) rw) >= PAGE_OFFSET) &&
10620 !(((unsigned long) rw) & 0x7)) {
10621 - printk("Caller[%08lx]: %pS\n", rw->ins[7],
10622 + printk("Caller[%08lx]: %pA\n", rw->ins[7],
10623 (void *) rw->ins[7]);
10624 rw = (struct reg_window32 *)rw->ins[6];
10625 }
10626 }
10627 printk("Instruction DUMP:");
10628 instruction_dump ((unsigned long *) regs->pc);
10629 - if(regs->psr & PSR_PS)
10630 + if(regs->psr & PSR_PS) {
10631 + gr_handle_kernel_exploit();
10632 do_exit(SIGKILL);
10633 + }
10634 do_exit(SIGSEGV);
10635 }
10636
10637 diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
10638 index 4ced92f..965eeed 100644
10639 --- a/arch/sparc/kernel/traps_64.c
10640 +++ b/arch/sparc/kernel/traps_64.c
10641 @@ -77,7 +77,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
10642 i + 1,
10643 p->trapstack[i].tstate, p->trapstack[i].tpc,
10644 p->trapstack[i].tnpc, p->trapstack[i].tt);
10645 - printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
10646 + printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
10647 }
10648 }
10649
10650 @@ -97,6 +97,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
10651
10652 lvl -= 0x100;
10653 if (regs->tstate & TSTATE_PRIV) {
10654 +
10655 +#ifdef CONFIG_PAX_REFCOUNT
10656 + if (lvl == 6)
10657 + pax_report_refcount_overflow(regs);
10658 +#endif
10659 +
10660 sprintf(buffer, "Kernel bad sw trap %lx", lvl);
10661 die_if_kernel(buffer, regs);
10662 }
10663 @@ -115,11 +121,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
10664 void bad_trap_tl1(struct pt_regs *regs, long lvl)
10665 {
10666 char buffer[32];
10667 -
10668 +
10669 if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
10670 0, lvl, SIGTRAP) == NOTIFY_STOP)
10671 return;
10672
10673 +#ifdef CONFIG_PAX_REFCOUNT
10674 + if (lvl == 6)
10675 + pax_report_refcount_overflow(regs);
10676 +#endif
10677 +
10678 dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
10679
10680 sprintf (buffer, "Bad trap %lx at tl>0", lvl);
10681 @@ -1149,7 +1160,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
10682 regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
10683 printk("%s" "ERROR(%d): ",
10684 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
10685 - printk("TPC<%pS>\n", (void *) regs->tpc);
10686 + printk("TPC<%pA>\n", (void *) regs->tpc);
10687 printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n",
10688 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
10689 (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
10690 @@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
10691 smp_processor_id(),
10692 (type & 0x1) ? 'I' : 'D',
10693 regs->tpc);
10694 - printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
10695 + printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
10696 panic("Irrecoverable Cheetah+ parity error.");
10697 }
10698
10699 @@ -1764,7 +1775,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
10700 smp_processor_id(),
10701 (type & 0x1) ? 'I' : 'D',
10702 regs->tpc);
10703 - printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
10704 + printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
10705 }
10706
10707 struct sun4v_error_entry {
10708 @@ -1837,8 +1848,8 @@ struct sun4v_error_entry {
10709 /*0x38*/u64 reserved_5;
10710 };
10711
10712 -static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
10713 -static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
10714 +static atomic_unchecked_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
10715 +static atomic_unchecked_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
10716
10717 static const char *sun4v_err_type_to_str(u8 type)
10718 {
10719 @@ -1930,7 +1941,7 @@ static void sun4v_report_real_raddr(const char *pfx, struct pt_regs *regs)
10720 }
10721
10722 static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
10723 - int cpu, const char *pfx, atomic_t *ocnt)
10724 + int cpu, const char *pfx, atomic_unchecked_t *ocnt)
10725 {
10726 u64 *raw_ptr = (u64 *) ent;
10727 u32 attrs;
10728 @@ -1988,8 +1999,8 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
10729
10730 show_regs(regs);
10731
10732 - if ((cnt = atomic_read(ocnt)) != 0) {
10733 - atomic_set(ocnt, 0);
10734 + if ((cnt = atomic_read_unchecked(ocnt)) != 0) {
10735 + atomic_set_unchecked(ocnt, 0);
10736 wmb();
10737 printk("%s: Queue overflowed %d times.\n",
10738 pfx, cnt);
10739 @@ -2046,7 +2057,7 @@ out:
10740 */
10741 void sun4v_resum_overflow(struct pt_regs *regs)
10742 {
10743 - atomic_inc(&sun4v_resum_oflow_cnt);
10744 + atomic_inc_unchecked(&sun4v_resum_oflow_cnt);
10745 }
10746
10747 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
10748 @@ -2099,7 +2110,7 @@ void sun4v_nonresum_overflow(struct pt_regs *regs)
10749 /* XXX Actually even this can make not that much sense. Perhaps
10750 * XXX we should just pull the plug and panic directly from here?
10751 */
10752 - atomic_inc(&sun4v_nonresum_oflow_cnt);
10753 + atomic_inc_unchecked(&sun4v_nonresum_oflow_cnt);
10754 }
10755
10756 unsigned long sun4v_err_itlb_vaddr;
10757 @@ -2114,9 +2125,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
10758
10759 printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
10760 regs->tpc, tl);
10761 - printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
10762 + printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
10763 printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
10764 - printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
10765 + printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
10766 (void *) regs->u_regs[UREG_I7]);
10767 printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
10768 "pte[%lx] error[%lx]\n",
10769 @@ -2138,9 +2149,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
10770
10771 printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
10772 regs->tpc, tl);
10773 - printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
10774 + printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
10775 printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
10776 - printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
10777 + printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
10778 (void *) regs->u_regs[UREG_I7]);
10779 printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
10780 "pte[%lx] error[%lx]\n",
10781 @@ -2359,13 +2370,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
10782 fp = (unsigned long)sf->fp + STACK_BIAS;
10783 }
10784
10785 - printk(" [%016lx] %pS\n", pc, (void *) pc);
10786 + printk(" [%016lx] %pA\n", pc, (void *) pc);
10787 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
10788 if ((pc + 8UL) == (unsigned long) &return_to_handler) {
10789 int index = tsk->curr_ret_stack;
10790 if (tsk->ret_stack && index >= graph) {
10791 pc = tsk->ret_stack[index - graph].ret;
10792 - printk(" [%016lx] %pS\n", pc, (void *) pc);
10793 + printk(" [%016lx] %pA\n", pc, (void *) pc);
10794 graph++;
10795 }
10796 }
10797 @@ -2383,6 +2394,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
10798 return (struct reg_window *) (fp + STACK_BIAS);
10799 }
10800
10801 +extern void gr_handle_kernel_exploit(void);
10802 +
10803 void die_if_kernel(char *str, struct pt_regs *regs)
10804 {
10805 static int die_counter;
10806 @@ -2411,7 +2424,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
10807 while (rw &&
10808 count++ < 30 &&
10809 kstack_valid(tp, (unsigned long) rw)) {
10810 - printk("Caller[%016lx]: %pS\n", rw->ins[7],
10811 + printk("Caller[%016lx]: %pA\n", rw->ins[7],
10812 (void *) rw->ins[7]);
10813
10814 rw = kernel_stack_up(rw);
10815 @@ -2424,8 +2437,10 @@ void die_if_kernel(char *str, struct pt_regs *regs)
10816 }
10817 user_instruction_dump ((unsigned int __user *) regs->tpc);
10818 }
10819 - if (regs->tstate & TSTATE_PRIV)
10820 + if (regs->tstate & TSTATE_PRIV) {
10821 + gr_handle_kernel_exploit();
10822 do_exit(SIGKILL);
10823 + }
10824 do_exit(SIGSEGV);
10825 }
10826 EXPORT_SYMBOL(die_if_kernel);
10827 diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
10828 index 35ab8b6..9046547 100644
10829 --- a/arch/sparc/kernel/unaligned_64.c
10830 +++ b/arch/sparc/kernel/unaligned_64.c
10831 @@ -295,7 +295,7 @@ static void log_unaligned(struct pt_regs *regs)
10832 static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
10833
10834 if (__ratelimit(&ratelimit)) {
10835 - printk("Kernel unaligned access at TPC[%lx] %pS\n",
10836 + printk("Kernel unaligned access at TPC[%lx] %pA\n",
10837 regs->tpc, (void *) regs->tpc);
10838 }
10839 }
10840 diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
10841 index dbe119b..089c7c1 100644
10842 --- a/arch/sparc/lib/Makefile
10843 +++ b/arch/sparc/lib/Makefile
10844 @@ -2,7 +2,7 @@
10845 #
10846
10847 asflags-y := -ansi -DST_DIV0=0x02
10848 -ccflags-y := -Werror
10849 +#ccflags-y := -Werror
10850
10851 lib-$(CONFIG_SPARC32) += ashrdi3.o
10852 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
10853 diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
10854 index 85c233d..68500e0 100644
10855 --- a/arch/sparc/lib/atomic_64.S
10856 +++ b/arch/sparc/lib/atomic_64.S
10857 @@ -17,7 +17,12 @@
10858 ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
10859 BACKOFF_SETUP(%o2)
10860 1: lduw [%o1], %g1
10861 - add %g1, %o0, %g7
10862 + addcc %g1, %o0, %g7
10863 +
10864 +#ifdef CONFIG_PAX_REFCOUNT
10865 + tvs %icc, 6
10866 +#endif
10867 +
10868 cas [%o1], %g1, %g7
10869 cmp %g1, %g7
10870 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
10871 @@ -27,10 +32,28 @@ ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
10872 2: BACKOFF_SPIN(%o2, %o3, 1b)
10873 ENDPROC(atomic_add)
10874
10875 +ENTRY(atomic_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
10876 + BACKOFF_SETUP(%o2)
10877 +1: lduw [%o1], %g1
10878 + add %g1, %o0, %g7
10879 + cas [%o1], %g1, %g7
10880 + cmp %g1, %g7
10881 + bne,pn %icc, 2f
10882 + nop
10883 + retl
10884 + nop
10885 +2: BACKOFF_SPIN(%o2, %o3, 1b)
10886 +ENDPROC(atomic_add_unchecked)
10887 +
10888 ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
10889 BACKOFF_SETUP(%o2)
10890 1: lduw [%o1], %g1
10891 - sub %g1, %o0, %g7
10892 + subcc %g1, %o0, %g7
10893 +
10894 +#ifdef CONFIG_PAX_REFCOUNT
10895 + tvs %icc, 6
10896 +#endif
10897 +
10898 cas [%o1], %g1, %g7
10899 cmp %g1, %g7
10900 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
10901 @@ -40,10 +63,28 @@ ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
10902 2: BACKOFF_SPIN(%o2, %o3, 1b)
10903 ENDPROC(atomic_sub)
10904
10905 +ENTRY(atomic_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
10906 + BACKOFF_SETUP(%o2)
10907 +1: lduw [%o1], %g1
10908 + sub %g1, %o0, %g7
10909 + cas [%o1], %g1, %g7
10910 + cmp %g1, %g7
10911 + bne,pn %icc, 2f
10912 + nop
10913 + retl
10914 + nop
10915 +2: BACKOFF_SPIN(%o2, %o3, 1b)
10916 +ENDPROC(atomic_sub_unchecked)
10917 +
10918 ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
10919 BACKOFF_SETUP(%o2)
10920 1: lduw [%o1], %g1
10921 - add %g1, %o0, %g7
10922 + addcc %g1, %o0, %g7
10923 +
10924 +#ifdef CONFIG_PAX_REFCOUNT
10925 + tvs %icc, 6
10926 +#endif
10927 +
10928 cas [%o1], %g1, %g7
10929 cmp %g1, %g7
10930 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
10931 @@ -53,10 +94,29 @@ ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
10932 2: BACKOFF_SPIN(%o2, %o3, 1b)
10933 ENDPROC(atomic_add_ret)
10934
10935 +ENTRY(atomic_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
10936 + BACKOFF_SETUP(%o2)
10937 +1: lduw [%o1], %g1
10938 + addcc %g1, %o0, %g7
10939 + cas [%o1], %g1, %g7
10940 + cmp %g1, %g7
10941 + bne,pn %icc, 2f
10942 + add %g7, %o0, %g7
10943 + sra %g7, 0, %o0
10944 + retl
10945 + nop
10946 +2: BACKOFF_SPIN(%o2, %o3, 1b)
10947 +ENDPROC(atomic_add_ret_unchecked)
10948 +
10949 ENTRY(atomic_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
10950 BACKOFF_SETUP(%o2)
10951 1: lduw [%o1], %g1
10952 - sub %g1, %o0, %g7
10953 + subcc %g1, %o0, %g7
10954 +
10955 +#ifdef CONFIG_PAX_REFCOUNT
10956 + tvs %icc, 6
10957 +#endif
10958 +
10959 cas [%o1], %g1, %g7
10960 cmp %g1, %g7
10961 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
10962 @@ -69,7 +129,12 @@ ENDPROC(atomic_sub_ret)
10963 ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
10964 BACKOFF_SETUP(%o2)
10965 1: ldx [%o1], %g1
10966 - add %g1, %o0, %g7
10967 + addcc %g1, %o0, %g7
10968 +
10969 +#ifdef CONFIG_PAX_REFCOUNT
10970 + tvs %xcc, 6
10971 +#endif
10972 +
10973 casx [%o1], %g1, %g7
10974 cmp %g1, %g7
10975 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
10976 @@ -79,10 +144,28 @@ ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
10977 2: BACKOFF_SPIN(%o2, %o3, 1b)
10978 ENDPROC(atomic64_add)
10979
10980 +ENTRY(atomic64_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
10981 + BACKOFF_SETUP(%o2)
10982 +1: ldx [%o1], %g1
10983 + addcc %g1, %o0, %g7
10984 + casx [%o1], %g1, %g7
10985 + cmp %g1, %g7
10986 + bne,pn %xcc, 2f
10987 + nop
10988 + retl
10989 + nop
10990 +2: BACKOFF_SPIN(%o2, %o3, 1b)
10991 +ENDPROC(atomic64_add_unchecked)
10992 +
10993 ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
10994 BACKOFF_SETUP(%o2)
10995 1: ldx [%o1], %g1
10996 - sub %g1, %o0, %g7
10997 + subcc %g1, %o0, %g7
10998 +
10999 +#ifdef CONFIG_PAX_REFCOUNT
11000 + tvs %xcc, 6
11001 +#endif
11002 +
11003 casx [%o1], %g1, %g7
11004 cmp %g1, %g7
11005 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
11006 @@ -92,10 +175,28 @@ ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
11007 2: BACKOFF_SPIN(%o2, %o3, 1b)
11008 ENDPROC(atomic64_sub)
11009
11010 +ENTRY(atomic64_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
11011 + BACKOFF_SETUP(%o2)
11012 +1: ldx [%o1], %g1
11013 + subcc %g1, %o0, %g7
11014 + casx [%o1], %g1, %g7
11015 + cmp %g1, %g7
11016 + bne,pn %xcc, 2f
11017 + nop
11018 + retl
11019 + nop
11020 +2: BACKOFF_SPIN(%o2, %o3, 1b)
11021 +ENDPROC(atomic64_sub_unchecked)
11022 +
11023 ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
11024 BACKOFF_SETUP(%o2)
11025 1: ldx [%o1], %g1
11026 - add %g1, %o0, %g7
11027 + addcc %g1, %o0, %g7
11028 +
11029 +#ifdef CONFIG_PAX_REFCOUNT
11030 + tvs %xcc, 6
11031 +#endif
11032 +
11033 casx [%o1], %g1, %g7
11034 cmp %g1, %g7
11035 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
11036 @@ -105,10 +206,29 @@ ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
11037 2: BACKOFF_SPIN(%o2, %o3, 1b)
11038 ENDPROC(atomic64_add_ret)
11039
11040 +ENTRY(atomic64_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
11041 + BACKOFF_SETUP(%o2)
11042 +1: ldx [%o1], %g1
11043 + addcc %g1, %o0, %g7
11044 + casx [%o1], %g1, %g7
11045 + cmp %g1, %g7
11046 + bne,pn %xcc, 2f
11047 + add %g7, %o0, %g7
11048 + mov %g7, %o0
11049 + retl
11050 + nop
11051 +2: BACKOFF_SPIN(%o2, %o3, 1b)
11052 +ENDPROC(atomic64_add_ret_unchecked)
11053 +
11054 ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
11055 BACKOFF_SETUP(%o2)
11056 1: ldx [%o1], %g1
11057 - sub %g1, %o0, %g7
11058 + subcc %g1, %o0, %g7
11059 +
11060 +#ifdef CONFIG_PAX_REFCOUNT
11061 + tvs %xcc, 6
11062 +#endif
11063 +
11064 casx [%o1], %g1, %g7
11065 cmp %g1, %g7
11066 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
11067 diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
11068 index 323335b..ed85ea2 100644
11069 --- a/arch/sparc/lib/ksyms.c
11070 +++ b/arch/sparc/lib/ksyms.c
11071 @@ -100,12 +100,18 @@ EXPORT_SYMBOL(__clear_user);
11072
11073 /* Atomic counter implementation. */
11074 EXPORT_SYMBOL(atomic_add);
11075 +EXPORT_SYMBOL(atomic_add_unchecked);
11076 EXPORT_SYMBOL(atomic_add_ret);
11077 +EXPORT_SYMBOL(atomic_add_ret_unchecked);
11078 EXPORT_SYMBOL(atomic_sub);
11079 +EXPORT_SYMBOL(atomic_sub_unchecked);
11080 EXPORT_SYMBOL(atomic_sub_ret);
11081 EXPORT_SYMBOL(atomic64_add);
11082 +EXPORT_SYMBOL(atomic64_add_unchecked);
11083 EXPORT_SYMBOL(atomic64_add_ret);
11084 +EXPORT_SYMBOL(atomic64_add_ret_unchecked);
11085 EXPORT_SYMBOL(atomic64_sub);
11086 +EXPORT_SYMBOL(atomic64_sub_unchecked);
11087 EXPORT_SYMBOL(atomic64_sub_ret);
11088 EXPORT_SYMBOL(atomic64_dec_if_positive);
11089
11090 diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
11091 index 30c3ecc..736f015 100644
11092 --- a/arch/sparc/mm/Makefile
11093 +++ b/arch/sparc/mm/Makefile
11094 @@ -2,7 +2,7 @@
11095 #
11096
11097 asflags-y := -ansi
11098 -ccflags-y := -Werror
11099 +#ccflags-y := -Werror
11100
11101 obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o
11102 obj-y += fault_$(BITS).o
11103 diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
11104 index 59dbd46..1dd7f5e 100644
11105 --- a/arch/sparc/mm/fault_32.c
11106 +++ b/arch/sparc/mm/fault_32.c
11107 @@ -21,6 +21,9 @@
11108 #include <linux/perf_event.h>
11109 #include <linux/interrupt.h>
11110 #include <linux/kdebug.h>
11111 +#include <linux/slab.h>
11112 +#include <linux/pagemap.h>
11113 +#include <linux/compiler.h>
11114
11115 #include <asm/page.h>
11116 #include <asm/pgtable.h>
11117 @@ -159,6 +162,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
11118 return safe_compute_effective_address(regs, insn);
11119 }
11120
11121 +#ifdef CONFIG_PAX_PAGEEXEC
11122 +#ifdef CONFIG_PAX_DLRESOLVE
11123 +static void pax_emuplt_close(struct vm_area_struct *vma)
11124 +{
11125 + vma->vm_mm->call_dl_resolve = 0UL;
11126 +}
11127 +
11128 +static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11129 +{
11130 + unsigned int *kaddr;
11131 +
11132 + vmf->page = alloc_page(GFP_HIGHUSER);
11133 + if (!vmf->page)
11134 + return VM_FAULT_OOM;
11135 +
11136 + kaddr = kmap(vmf->page);
11137 + memset(kaddr, 0, PAGE_SIZE);
11138 + kaddr[0] = 0x9DE3BFA8U; /* save */
11139 + flush_dcache_page(vmf->page);
11140 + kunmap(vmf->page);
11141 + return VM_FAULT_MAJOR;
11142 +}
11143 +
11144 +static const struct vm_operations_struct pax_vm_ops = {
11145 + .close = pax_emuplt_close,
11146 + .fault = pax_emuplt_fault
11147 +};
11148 +
11149 +static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11150 +{
11151 + int ret;
11152 +
11153 + INIT_LIST_HEAD(&vma->anon_vma_chain);
11154 + vma->vm_mm = current->mm;
11155 + vma->vm_start = addr;
11156 + vma->vm_end = addr + PAGE_SIZE;
11157 + vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11158 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11159 + vma->vm_ops = &pax_vm_ops;
11160 +
11161 + ret = insert_vm_struct(current->mm, vma);
11162 + if (ret)
11163 + return ret;
11164 +
11165 + ++current->mm->total_vm;
11166 + return 0;
11167 +}
11168 +#endif
11169 +
11170 +/*
11171 + * PaX: decide what to do with offenders (regs->pc = fault address)
11172 + *
11173 + * returns 1 when task should be killed
11174 + * 2 when patched PLT trampoline was detected
11175 + * 3 when unpatched PLT trampoline was detected
11176 + */
11177 +static int pax_handle_fetch_fault(struct pt_regs *regs)
11178 +{
11179 +
11180 +#ifdef CONFIG_PAX_EMUPLT
11181 + int err;
11182 +
11183 + do { /* PaX: patched PLT emulation #1 */
11184 + unsigned int sethi1, sethi2, jmpl;
11185 +
11186 + err = get_user(sethi1, (unsigned int *)regs->pc);
11187 + err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
11188 + err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
11189 +
11190 + if (err)
11191 + break;
11192 +
11193 + if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11194 + (sethi2 & 0xFFC00000U) == 0x03000000U &&
11195 + (jmpl & 0xFFFFE000U) == 0x81C06000U)
11196 + {
11197 + unsigned int addr;
11198 +
11199 + regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11200 + addr = regs->u_regs[UREG_G1];
11201 + addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11202 + regs->pc = addr;
11203 + regs->npc = addr+4;
11204 + return 2;
11205 + }
11206 + } while (0);
11207 +
11208 + do { /* PaX: patched PLT emulation #2 */
11209 + unsigned int ba;
11210 +
11211 + err = get_user(ba, (unsigned int *)regs->pc);
11212 +
11213 + if (err)
11214 + break;
11215 +
11216 + if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11217 + unsigned int addr;
11218 +
11219 + if ((ba & 0xFFC00000U) == 0x30800000U)
11220 + addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11221 + else
11222 + addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11223 + regs->pc = addr;
11224 + regs->npc = addr+4;
11225 + return 2;
11226 + }
11227 + } while (0);
11228 +
11229 + do { /* PaX: patched PLT emulation #3 */
11230 + unsigned int sethi, bajmpl, nop;
11231 +
11232 + err = get_user(sethi, (unsigned int *)regs->pc);
11233 + err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
11234 + err |= get_user(nop, (unsigned int *)(regs->pc+8));
11235 +
11236 + if (err)
11237 + break;
11238 +
11239 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11240 + ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11241 + nop == 0x01000000U)
11242 + {
11243 + unsigned int addr;
11244 +
11245 + addr = (sethi & 0x003FFFFFU) << 10;
11246 + regs->u_regs[UREG_G1] = addr;
11247 + if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11248 + addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11249 + else
11250 + addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11251 + regs->pc = addr;
11252 + regs->npc = addr+4;
11253 + return 2;
11254 + }
11255 + } while (0);
11256 +
11257 + do { /* PaX: unpatched PLT emulation step 1 */
11258 + unsigned int sethi, ba, nop;
11259 +
11260 + err = get_user(sethi, (unsigned int *)regs->pc);
11261 + err |= get_user(ba, (unsigned int *)(regs->pc+4));
11262 + err |= get_user(nop, (unsigned int *)(regs->pc+8));
11263 +
11264 + if (err)
11265 + break;
11266 +
11267 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11268 + ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11269 + nop == 0x01000000U)
11270 + {
11271 + unsigned int addr, save, call;
11272 +
11273 + if ((ba & 0xFFC00000U) == 0x30800000U)
11274 + addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11275 + else
11276 + addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11277 +
11278 + err = get_user(save, (unsigned int *)addr);
11279 + err |= get_user(call, (unsigned int *)(addr+4));
11280 + err |= get_user(nop, (unsigned int *)(addr+8));
11281 + if (err)
11282 + break;
11283 +
11284 +#ifdef CONFIG_PAX_DLRESOLVE
11285 + if (save == 0x9DE3BFA8U &&
11286 + (call & 0xC0000000U) == 0x40000000U &&
11287 + nop == 0x01000000U)
11288 + {
11289 + struct vm_area_struct *vma;
11290 + unsigned long call_dl_resolve;
11291 +
11292 + down_read(&current->mm->mmap_sem);
11293 + call_dl_resolve = current->mm->call_dl_resolve;
11294 + up_read(&current->mm->mmap_sem);
11295 + if (likely(call_dl_resolve))
11296 + goto emulate;
11297 +
11298 + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11299 +
11300 + down_write(&current->mm->mmap_sem);
11301 + if (current->mm->call_dl_resolve) {
11302 + call_dl_resolve = current->mm->call_dl_resolve;
11303 + up_write(&current->mm->mmap_sem);
11304 + if (vma)
11305 + kmem_cache_free(vm_area_cachep, vma);
11306 + goto emulate;
11307 + }
11308 +
11309 + call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11310 + if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11311 + up_write(&current->mm->mmap_sem);
11312 + if (vma)
11313 + kmem_cache_free(vm_area_cachep, vma);
11314 + return 1;
11315 + }
11316 +
11317 + if (pax_insert_vma(vma, call_dl_resolve)) {
11318 + up_write(&current->mm->mmap_sem);
11319 + kmem_cache_free(vm_area_cachep, vma);
11320 + return 1;
11321 + }
11322 +
11323 + current->mm->call_dl_resolve = call_dl_resolve;
11324 + up_write(&current->mm->mmap_sem);
11325 +
11326 +emulate:
11327 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11328 + regs->pc = call_dl_resolve;
11329 + regs->npc = addr+4;
11330 + return 3;
11331 + }
11332 +#endif
11333 +
11334 + /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
11335 + if ((save & 0xFFC00000U) == 0x05000000U &&
11336 + (call & 0xFFFFE000U) == 0x85C0A000U &&
11337 + nop == 0x01000000U)
11338 + {
11339 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11340 + regs->u_regs[UREG_G2] = addr + 4;
11341 + addr = (save & 0x003FFFFFU) << 10;
11342 + addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11343 + regs->pc = addr;
11344 + regs->npc = addr+4;
11345 + return 3;
11346 + }
11347 + }
11348 + } while (0);
11349 +
11350 + do { /* PaX: unpatched PLT emulation step 2 */
11351 + unsigned int save, call, nop;
11352 +
11353 + err = get_user(save, (unsigned int *)(regs->pc-4));
11354 + err |= get_user(call, (unsigned int *)regs->pc);
11355 + err |= get_user(nop, (unsigned int *)(regs->pc+4));
11356 + if (err)
11357 + break;
11358 +
11359 + if (save == 0x9DE3BFA8U &&
11360 + (call & 0xC0000000U) == 0x40000000U &&
11361 + nop == 0x01000000U)
11362 + {
11363 + unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
11364 +
11365 + regs->u_regs[UREG_RETPC] = regs->pc;
11366 + regs->pc = dl_resolve;
11367 + regs->npc = dl_resolve+4;
11368 + return 3;
11369 + }
11370 + } while (0);
11371 +#endif
11372 +
11373 + return 1;
11374 +}
11375 +
11376 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
11377 +{
11378 + unsigned long i;
11379 +
11380 + printk(KERN_ERR "PAX: bytes at PC: ");
11381 + for (i = 0; i < 8; i++) {
11382 + unsigned int c;
11383 + if (get_user(c, (unsigned int *)pc+i))
11384 + printk(KERN_CONT "???????? ");
11385 + else
11386 + printk(KERN_CONT "%08x ", c);
11387 + }
11388 + printk("\n");
11389 +}
11390 +#endif
11391 +
11392 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
11393 int text_fault)
11394 {
11395 @@ -229,6 +503,24 @@ good_area:
11396 if (!(vma->vm_flags & VM_WRITE))
11397 goto bad_area;
11398 } else {
11399 +
11400 +#ifdef CONFIG_PAX_PAGEEXEC
11401 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
11402 + up_read(&mm->mmap_sem);
11403 + switch (pax_handle_fetch_fault(regs)) {
11404 +
11405 +#ifdef CONFIG_PAX_EMUPLT
11406 + case 2:
11407 + case 3:
11408 + return;
11409 +#endif
11410 +
11411 + }
11412 + pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
11413 + do_group_exit(SIGKILL);
11414 + }
11415 +#endif
11416 +
11417 /* Allow reads even for write-only mappings */
11418 if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
11419 goto bad_area;
11420 diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
11421 index 4ced3fc..234f1e4 100644
11422 --- a/arch/sparc/mm/fault_64.c
11423 +++ b/arch/sparc/mm/fault_64.c
11424 @@ -22,6 +22,9 @@
11425 #include <linux/kdebug.h>
11426 #include <linux/percpu.h>
11427 #include <linux/context_tracking.h>
11428 +#include <linux/slab.h>
11429 +#include <linux/pagemap.h>
11430 +#include <linux/compiler.h>
11431
11432 #include <asm/page.h>
11433 #include <asm/pgtable.h>
11434 @@ -75,7 +78,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
11435 printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
11436 regs->tpc);
11437 printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
11438 - printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
11439 + printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
11440 printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
11441 dump_stack();
11442 unhandled_fault(regs->tpc, current, regs);
11443 @@ -281,6 +284,466 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
11444 show_regs(regs);
11445 }
11446
11447 +#ifdef CONFIG_PAX_PAGEEXEC
11448 +#ifdef CONFIG_PAX_DLRESOLVE
11449 +static void pax_emuplt_close(struct vm_area_struct *vma)
11450 +{
11451 + vma->vm_mm->call_dl_resolve = 0UL;
11452 +}
11453 +
11454 +static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11455 +{
11456 + unsigned int *kaddr;
11457 +
11458 + vmf->page = alloc_page(GFP_HIGHUSER);
11459 + if (!vmf->page)
11460 + return VM_FAULT_OOM;
11461 +
11462 + kaddr = kmap(vmf->page);
11463 + memset(kaddr, 0, PAGE_SIZE);
11464 + kaddr[0] = 0x9DE3BFA8U; /* save */
11465 + flush_dcache_page(vmf->page);
11466 + kunmap(vmf->page);
11467 + return VM_FAULT_MAJOR;
11468 +}
11469 +
11470 +static const struct vm_operations_struct pax_vm_ops = {
11471 + .close = pax_emuplt_close,
11472 + .fault = pax_emuplt_fault
11473 +};
11474 +
11475 +static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11476 +{
11477 + int ret;
11478 +
11479 + INIT_LIST_HEAD(&vma->anon_vma_chain);
11480 + vma->vm_mm = current->mm;
11481 + vma->vm_start = addr;
11482 + vma->vm_end = addr + PAGE_SIZE;
11483 + vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11484 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11485 + vma->vm_ops = &pax_vm_ops;
11486 +
11487 + ret = insert_vm_struct(current->mm, vma);
11488 + if (ret)
11489 + return ret;
11490 +
11491 + ++current->mm->total_vm;
11492 + return 0;
11493 +}
11494 +#endif
11495 +
11496 +/*
11497 + * PaX: decide what to do with offenders (regs->tpc = fault address)
11498 + *
11499 + * returns 1 when task should be killed
11500 + * 2 when patched PLT trampoline was detected
11501 + * 3 when unpatched PLT trampoline was detected
11502 + */
11503 +static int pax_handle_fetch_fault(struct pt_regs *regs)
11504 +{
11505 +
11506 +#ifdef CONFIG_PAX_EMUPLT
11507 + int err;
11508 +
11509 + do { /* PaX: patched PLT emulation #1 */
11510 + unsigned int sethi1, sethi2, jmpl;
11511 +
11512 + err = get_user(sethi1, (unsigned int *)regs->tpc);
11513 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
11514 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
11515 +
11516 + if (err)
11517 + break;
11518 +
11519 + if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11520 + (sethi2 & 0xFFC00000U) == 0x03000000U &&
11521 + (jmpl & 0xFFFFE000U) == 0x81C06000U)
11522 + {
11523 + unsigned long addr;
11524 +
11525 + regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11526 + addr = regs->u_regs[UREG_G1];
11527 + addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11528 +
11529 + if (test_thread_flag(TIF_32BIT))
11530 + addr &= 0xFFFFFFFFUL;
11531 +
11532 + regs->tpc = addr;
11533 + regs->tnpc = addr+4;
11534 + return 2;
11535 + }
11536 + } while (0);
11537 +
11538 + do { /* PaX: patched PLT emulation #2 */
11539 + unsigned int ba;
11540 +
11541 + err = get_user(ba, (unsigned int *)regs->tpc);
11542 +
11543 + if (err)
11544 + break;
11545 +
11546 + if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11547 + unsigned long addr;
11548 +
11549 + if ((ba & 0xFFC00000U) == 0x30800000U)
11550 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11551 + else
11552 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11553 +
11554 + if (test_thread_flag(TIF_32BIT))
11555 + addr &= 0xFFFFFFFFUL;
11556 +
11557 + regs->tpc = addr;
11558 + regs->tnpc = addr+4;
11559 + return 2;
11560 + }
11561 + } while (0);
11562 +
11563 + do { /* PaX: patched PLT emulation #3 */
11564 + unsigned int sethi, bajmpl, nop;
11565 +
11566 + err = get_user(sethi, (unsigned int *)regs->tpc);
11567 + err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
11568 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11569 +
11570 + if (err)
11571 + break;
11572 +
11573 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11574 + ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11575 + nop == 0x01000000U)
11576 + {
11577 + unsigned long addr;
11578 +
11579 + addr = (sethi & 0x003FFFFFU) << 10;
11580 + regs->u_regs[UREG_G1] = addr;
11581 + if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11582 + addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11583 + else
11584 + addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11585 +
11586 + if (test_thread_flag(TIF_32BIT))
11587 + addr &= 0xFFFFFFFFUL;
11588 +
11589 + regs->tpc = addr;
11590 + regs->tnpc = addr+4;
11591 + return 2;
11592 + }
11593 + } while (0);
11594 +
11595 + do { /* PaX: patched PLT emulation #4 */
11596 + unsigned int sethi, mov1, call, mov2;
11597 +
11598 + err = get_user(sethi, (unsigned int *)regs->tpc);
11599 + err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
11600 + err |= get_user(call, (unsigned int *)(regs->tpc+8));
11601 + err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
11602 +
11603 + if (err)
11604 + break;
11605 +
11606 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11607 + mov1 == 0x8210000FU &&
11608 + (call & 0xC0000000U) == 0x40000000U &&
11609 + mov2 == 0x9E100001U)
11610 + {
11611 + unsigned long addr;
11612 +
11613 + regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
11614 + addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
11615 +
11616 + if (test_thread_flag(TIF_32BIT))
11617 + addr &= 0xFFFFFFFFUL;
11618 +
11619 + regs->tpc = addr;
11620 + regs->tnpc = addr+4;
11621 + return 2;
11622 + }
11623 + } while (0);
11624 +
11625 + do { /* PaX: patched PLT emulation #5 */
11626 + unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
11627 +
11628 + err = get_user(sethi, (unsigned int *)regs->tpc);
11629 + err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11630 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11631 + err |= get_user(or1, (unsigned int *)(regs->tpc+12));
11632 + err |= get_user(or2, (unsigned int *)(regs->tpc+16));
11633 + err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
11634 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
11635 + err |= get_user(nop, (unsigned int *)(regs->tpc+28));
11636 +
11637 + if (err)
11638 + break;
11639 +
11640 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11641 + (sethi1 & 0xFFC00000U) == 0x03000000U &&
11642 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11643 + (or1 & 0xFFFFE000U) == 0x82106000U &&
11644 + (or2 & 0xFFFFE000U) == 0x8A116000U &&
11645 + sllx == 0x83287020U &&
11646 + jmpl == 0x81C04005U &&
11647 + nop == 0x01000000U)
11648 + {
11649 + unsigned long addr;
11650 +
11651 + regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
11652 + regs->u_regs[UREG_G1] <<= 32;
11653 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
11654 + addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11655 + regs->tpc = addr;
11656 + regs->tnpc = addr+4;
11657 + return 2;
11658 + }
11659 + } while (0);
11660 +
11661 + do { /* PaX: patched PLT emulation #6 */
11662 + unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop;
11663 +
11664 + err = get_user(sethi, (unsigned int *)regs->tpc);
11665 + err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11666 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11667 + err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
11668 + err |= get_user(or, (unsigned int *)(regs->tpc+16));
11669 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
11670 + err |= get_user(nop, (unsigned int *)(regs->tpc+24));
11671 +
11672 + if (err)
11673 + break;
11674 +
11675 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11676 + (sethi1 & 0xFFC00000U) == 0x03000000U &&
11677 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11678 + sllx == 0x83287020U &&
11679 + (or & 0xFFFFE000U) == 0x8A116000U &&
11680 + jmpl == 0x81C04005U &&
11681 + nop == 0x01000000U)
11682 + {
11683 + unsigned long addr;
11684 +
11685 + regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
11686 + regs->u_regs[UREG_G1] <<= 32;
11687 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
11688 + addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11689 + regs->tpc = addr;
11690 + regs->tnpc = addr+4;
11691 + return 2;
11692 + }
11693 + } while (0);
11694 +
11695 + do { /* PaX: unpatched PLT emulation step 1 */
11696 + unsigned int sethi, ba, nop;
11697 +
11698 + err = get_user(sethi, (unsigned int *)regs->tpc);
11699 + err |= get_user(ba, (unsigned int *)(regs->tpc+4));
11700 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11701 +
11702 + if (err)
11703 + break;
11704 +
11705 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11706 + ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11707 + nop == 0x01000000U)
11708 + {
11709 + unsigned long addr;
11710 + unsigned int save, call;
11711 + unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
11712 +
11713 + if ((ba & 0xFFC00000U) == 0x30800000U)
11714 + addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11715 + else
11716 + addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11717 +
11718 + if (test_thread_flag(TIF_32BIT))
11719 + addr &= 0xFFFFFFFFUL;
11720 +
11721 + err = get_user(save, (unsigned int *)addr);
11722 + err |= get_user(call, (unsigned int *)(addr+4));
11723 + err |= get_user(nop, (unsigned int *)(addr+8));
11724 + if (err)
11725 + break;
11726 +
11727 +#ifdef CONFIG_PAX_DLRESOLVE
11728 + if (save == 0x9DE3BFA8U &&
11729 + (call & 0xC0000000U) == 0x40000000U &&
11730 + nop == 0x01000000U)
11731 + {
11732 + struct vm_area_struct *vma;
11733 + unsigned long call_dl_resolve;
11734 +
11735 + down_read(&current->mm->mmap_sem);
11736 + call_dl_resolve = current->mm->call_dl_resolve;
11737 + up_read(&current->mm->mmap_sem);
11738 + if (likely(call_dl_resolve))
11739 + goto emulate;
11740 +
11741 + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11742 +
11743 + down_write(&current->mm->mmap_sem);
11744 + if (current->mm->call_dl_resolve) {
11745 + call_dl_resolve = current->mm->call_dl_resolve;
11746 + up_write(&current->mm->mmap_sem);
11747 + if (vma)
11748 + kmem_cache_free(vm_area_cachep, vma);
11749 + goto emulate;
11750 + }
11751 +
11752 + call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11753 + if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11754 + up_write(&current->mm->mmap_sem);
11755 + if (vma)
11756 + kmem_cache_free(vm_area_cachep, vma);
11757 + return 1;
11758 + }
11759 +
11760 + if (pax_insert_vma(vma, call_dl_resolve)) {
11761 + up_write(&current->mm->mmap_sem);
11762 + kmem_cache_free(vm_area_cachep, vma);
11763 + return 1;
11764 + }
11765 +
11766 + current->mm->call_dl_resolve = call_dl_resolve;
11767 + up_write(&current->mm->mmap_sem);
11768 +
11769 +emulate:
11770 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11771 + regs->tpc = call_dl_resolve;
11772 + regs->tnpc = addr+4;
11773 + return 3;
11774 + }
11775 +#endif
11776 +
11777 + /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
11778 + if ((save & 0xFFC00000U) == 0x05000000U &&
11779 + (call & 0xFFFFE000U) == 0x85C0A000U &&
11780 + nop == 0x01000000U)
11781 + {
11782 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11783 + regs->u_regs[UREG_G2] = addr + 4;
11784 + addr = (save & 0x003FFFFFU) << 10;
11785 + addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11786 +
11787 + if (test_thread_flag(TIF_32BIT))
11788 + addr &= 0xFFFFFFFFUL;
11789 +
11790 + regs->tpc = addr;
11791 + regs->tnpc = addr+4;
11792 + return 3;
11793 + }
11794 +
11795 + /* PaX: 64-bit PLT stub */
11796 + err = get_user(sethi1, (unsigned int *)addr);
11797 + err |= get_user(sethi2, (unsigned int *)(addr+4));
11798 + err |= get_user(or1, (unsigned int *)(addr+8));
11799 + err |= get_user(or2, (unsigned int *)(addr+12));
11800 + err |= get_user(sllx, (unsigned int *)(addr+16));
11801 + err |= get_user(add, (unsigned int *)(addr+20));
11802 + err |= get_user(jmpl, (unsigned int *)(addr+24));
11803 + err |= get_user(nop, (unsigned int *)(addr+28));
11804 + if (err)
11805 + break;
11806 +
11807 + if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
11808 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11809 + (or1 & 0xFFFFE000U) == 0x88112000U &&
11810 + (or2 & 0xFFFFE000U) == 0x8A116000U &&
11811 + sllx == 0x89293020U &&
11812 + add == 0x8A010005U &&
11813 + jmpl == 0x89C14000U &&
11814 + nop == 0x01000000U)
11815 + {
11816 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11817 + regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
11818 + regs->u_regs[UREG_G4] <<= 32;
11819 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
11820 + regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
11821 + regs->u_regs[UREG_G4] = addr + 24;
11822 + addr = regs->u_regs[UREG_G5];
11823 + regs->tpc = addr;
11824 + regs->tnpc = addr+4;
11825 + return 3;
11826 + }
11827 + }
11828 + } while (0);
11829 +
11830 +#ifdef CONFIG_PAX_DLRESOLVE
11831 + do { /* PaX: unpatched PLT emulation step 2 */
11832 + unsigned int save, call, nop;
11833 +
11834 + err = get_user(save, (unsigned int *)(regs->tpc-4));
11835 + err |= get_user(call, (unsigned int *)regs->tpc);
11836 + err |= get_user(nop, (unsigned int *)(regs->tpc+4));
11837 + if (err)
11838 + break;
11839 +
11840 + if (save == 0x9DE3BFA8U &&
11841 + (call & 0xC0000000U) == 0x40000000U &&
11842 + nop == 0x01000000U)
11843 + {
11844 + unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
11845 +
11846 + if (test_thread_flag(TIF_32BIT))
11847 + dl_resolve &= 0xFFFFFFFFUL;
11848 +
11849 + regs->u_regs[UREG_RETPC] = regs->tpc;
11850 + regs->tpc = dl_resolve;
11851 + regs->tnpc = dl_resolve+4;
11852 + return 3;
11853 + }
11854 + } while (0);
11855 +#endif
11856 +
11857 + do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
11858 + unsigned int sethi, ba, nop;
11859 +
11860 + err = get_user(sethi, (unsigned int *)regs->tpc);
11861 + err |= get_user(ba, (unsigned int *)(regs->tpc+4));
11862 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11863 +
11864 + if (err)
11865 + break;
11866 +
11867 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
11868 + (ba & 0xFFF00000U) == 0x30600000U &&
11869 + nop == 0x01000000U)
11870 + {
11871 + unsigned long addr;
11872 +
11873 + addr = (sethi & 0x003FFFFFU) << 10;
11874 + regs->u_regs[UREG_G1] = addr;
11875 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11876 +
11877 + if (test_thread_flag(TIF_32BIT))
11878 + addr &= 0xFFFFFFFFUL;
11879 +
11880 + regs->tpc = addr;
11881 + regs->tnpc = addr+4;
11882 + return 2;
11883 + }
11884 + } while (0);
11885 +
11886 +#endif
11887 +
11888 + return 1;
11889 +}
11890 +
11891 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
11892 +{
11893 + unsigned long i;
11894 +
11895 + printk(KERN_ERR "PAX: bytes at PC: ");
11896 + for (i = 0; i < 8; i++) {
11897 + unsigned int c;
11898 + if (get_user(c, (unsigned int *)pc+i))
11899 + printk(KERN_CONT "???????? ");
11900 + else
11901 + printk(KERN_CONT "%08x ", c);
11902 + }
11903 + printk("\n");
11904 +}
11905 +#endif
11906 +
11907 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
11908 {
11909 enum ctx_state prev_state = exception_enter();
11910 @@ -352,6 +815,29 @@ retry:
11911 if (!vma)
11912 goto bad_area;
11913
11914 +#ifdef CONFIG_PAX_PAGEEXEC
11915 + /* PaX: detect ITLB misses on non-exec pages */
11916 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
11917 + !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
11918 + {
11919 + if (address != regs->tpc)
11920 + goto good_area;
11921 +
11922 + up_read(&mm->mmap_sem);
11923 + switch (pax_handle_fetch_fault(regs)) {
11924 +
11925 +#ifdef CONFIG_PAX_EMUPLT
11926 + case 2:
11927 + case 3:
11928 + return;
11929 +#endif
11930 +
11931 + }
11932 + pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
11933 + do_group_exit(SIGKILL);
11934 + }
11935 +#endif
11936 +
11937 /* Pure DTLB misses do not tell us whether the fault causing
11938 * load/store/atomic was a write or not, it only says that there
11939 * was no match. So in such a case we (carefully) read the
11940 diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
11941 index d329537..2c3746a 100644
11942 --- a/arch/sparc/mm/hugetlbpage.c
11943 +++ b/arch/sparc/mm/hugetlbpage.c
11944 @@ -25,8 +25,10 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
11945 unsigned long addr,
11946 unsigned long len,
11947 unsigned long pgoff,
11948 - unsigned long flags)
11949 + unsigned long flags,
11950 + unsigned long offset)
11951 {
11952 + struct mm_struct *mm = current->mm;
11953 unsigned long task_size = TASK_SIZE;
11954 struct vm_unmapped_area_info info;
11955
11956 @@ -35,15 +37,22 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
11957
11958 info.flags = 0;
11959 info.length = len;
11960 - info.low_limit = TASK_UNMAPPED_BASE;
11961 + info.low_limit = mm->mmap_base;
11962 info.high_limit = min(task_size, VA_EXCLUDE_START);
11963 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
11964 info.align_offset = 0;
11965 + info.threadstack_offset = offset;
11966 addr = vm_unmapped_area(&info);
11967
11968 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
11969 VM_BUG_ON(addr != -ENOMEM);
11970 info.low_limit = VA_EXCLUDE_END;
11971 +
11972 +#ifdef CONFIG_PAX_RANDMMAP
11973 + if (mm->pax_flags & MF_PAX_RANDMMAP)
11974 + info.low_limit += mm->delta_mmap;
11975 +#endif
11976 +
11977 info.high_limit = task_size;
11978 addr = vm_unmapped_area(&info);
11979 }
11980 @@ -55,7 +64,8 @@ static unsigned long
11981 hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
11982 const unsigned long len,
11983 const unsigned long pgoff,
11984 - const unsigned long flags)
11985 + const unsigned long flags,
11986 + const unsigned long offset)
11987 {
11988 struct mm_struct *mm = current->mm;
11989 unsigned long addr = addr0;
11990 @@ -70,6 +80,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
11991 info.high_limit = mm->mmap_base;
11992 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
11993 info.align_offset = 0;
11994 + info.threadstack_offset = offset;
11995 addr = vm_unmapped_area(&info);
11996
11997 /*
11998 @@ -82,6 +93,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
11999 VM_BUG_ON(addr != -ENOMEM);
12000 info.flags = 0;
12001 info.low_limit = TASK_UNMAPPED_BASE;
12002 +
12003 +#ifdef CONFIG_PAX_RANDMMAP
12004 + if (mm->pax_flags & MF_PAX_RANDMMAP)
12005 + info.low_limit += mm->delta_mmap;
12006 +#endif
12007 +
12008 info.high_limit = STACK_TOP32;
12009 addr = vm_unmapped_area(&info);
12010 }
12011 @@ -96,6 +113,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12012 struct mm_struct *mm = current->mm;
12013 struct vm_area_struct *vma;
12014 unsigned long task_size = TASK_SIZE;
12015 + unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
12016
12017 if (test_thread_flag(TIF_32BIT))
12018 task_size = STACK_TOP32;
12019 @@ -111,19 +129,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12020 return addr;
12021 }
12022
12023 +#ifdef CONFIG_PAX_RANDMMAP
12024 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
12025 +#endif
12026 +
12027 if (addr) {
12028 addr = ALIGN(addr, HPAGE_SIZE);
12029 vma = find_vma(mm, addr);
12030 - if (task_size - len >= addr &&
12031 - (!vma || addr + len <= vma->vm_start))
12032 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
12033 return addr;
12034 }
12035 if (mm->get_unmapped_area == arch_get_unmapped_area)
12036 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
12037 - pgoff, flags);
12038 + pgoff, flags, offset);
12039 else
12040 return hugetlb_get_unmapped_area_topdown(file, addr, len,
12041 - pgoff, flags);
12042 + pgoff, flags, offset);
12043 }
12044
12045 pte_t *huge_pte_alloc(struct mm_struct *mm,
12046 diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
12047 index ed3c969..42fe48d 100644
12048 --- a/arch/sparc/mm/init_64.c
12049 +++ b/arch/sparc/mm/init_64.c
12050 @@ -188,9 +188,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
12051 int num_kernel_image_mappings;
12052
12053 #ifdef CONFIG_DEBUG_DCFLUSH
12054 -atomic_t dcpage_flushes = ATOMIC_INIT(0);
12055 +atomic_unchecked_t dcpage_flushes = ATOMIC_INIT(0);
12056 #ifdef CONFIG_SMP
12057 -atomic_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12058 +atomic_unchecked_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12059 #endif
12060 #endif
12061
12062 @@ -198,7 +198,7 @@ inline void flush_dcache_page_impl(struct page *page)
12063 {
12064 BUG_ON(tlb_type == hypervisor);
12065 #ifdef CONFIG_DEBUG_DCFLUSH
12066 - atomic_inc(&dcpage_flushes);
12067 + atomic_inc_unchecked(&dcpage_flushes);
12068 #endif
12069
12070 #ifdef DCACHE_ALIASING_POSSIBLE
12071 @@ -466,10 +466,10 @@ void mmu_info(struct seq_file *m)
12072
12073 #ifdef CONFIG_DEBUG_DCFLUSH
12074 seq_printf(m, "DCPageFlushes\t: %d\n",
12075 - atomic_read(&dcpage_flushes));
12076 + atomic_read_unchecked(&dcpage_flushes));
12077 #ifdef CONFIG_SMP
12078 seq_printf(m, "DCPageFlushesXC\t: %d\n",
12079 - atomic_read(&dcpage_flushes_xcall));
12080 + atomic_read_unchecked(&dcpage_flushes_xcall));
12081 #endif /* CONFIG_SMP */
12082 #endif /* CONFIG_DEBUG_DCFLUSH */
12083 }
12084 diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
12085 index 85258ca..df97c79 100644
12086 --- a/arch/tile/Kconfig
12087 +++ b/arch/tile/Kconfig
12088 @@ -190,6 +190,7 @@ source "kernel/Kconfig.hz"
12089
12090 config KEXEC
12091 bool "kexec system call"
12092 + depends on !GRKERNSEC_KMEM
12093 ---help---
12094 kexec is a system call that implements the ability to shutdown your
12095 current kernel, and to start another kernel. It is like a reboot
12096 diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
12097 index ad220ee..2f537b3 100644
12098 --- a/arch/tile/include/asm/atomic_64.h
12099 +++ b/arch/tile/include/asm/atomic_64.h
12100 @@ -105,6 +105,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
12101
12102 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
12103
12104 +#define atomic64_read_unchecked(v) atomic64_read(v)
12105 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
12106 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
12107 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
12108 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
12109 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
12110 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
12111 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
12112 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
12113 +
12114 /* Atomic dec and inc don't implement barrier, so provide them if needed. */
12115 #define smp_mb__before_atomic_dec() smp_mb()
12116 #define smp_mb__after_atomic_dec() smp_mb()
12117 diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
12118 index 6160761..00cac88 100644
12119 --- a/arch/tile/include/asm/cache.h
12120 +++ b/arch/tile/include/asm/cache.h
12121 @@ -15,11 +15,12 @@
12122 #ifndef _ASM_TILE_CACHE_H
12123 #define _ASM_TILE_CACHE_H
12124
12125 +#include <linux/const.h>
12126 #include <arch/chip.h>
12127
12128 /* bytes per L1 data cache line */
12129 #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE()
12130 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12131 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12132
12133 /* bytes per L2 cache line */
12134 #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE()
12135 diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
12136 index b6cde32..c0cb736 100644
12137 --- a/arch/tile/include/asm/uaccess.h
12138 +++ b/arch/tile/include/asm/uaccess.h
12139 @@ -414,9 +414,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
12140 const void __user *from,
12141 unsigned long n)
12142 {
12143 - int sz = __compiletime_object_size(to);
12144 + size_t sz = __compiletime_object_size(to);
12145
12146 - if (likely(sz == -1 || sz >= n))
12147 + if (likely(sz == (size_t)-1 || sz >= n))
12148 n = _copy_from_user(to, from, n);
12149 else
12150 copy_from_user_overflow();
12151 diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
12152 index e514899..f8743c4 100644
12153 --- a/arch/tile/mm/hugetlbpage.c
12154 +++ b/arch/tile/mm/hugetlbpage.c
12155 @@ -207,6 +207,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
12156 info.high_limit = TASK_SIZE;
12157 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12158 info.align_offset = 0;
12159 + info.threadstack_offset = 0;
12160 return vm_unmapped_area(&info);
12161 }
12162
12163 @@ -224,6 +225,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
12164 info.high_limit = current->mm->mmap_base;
12165 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12166 info.align_offset = 0;
12167 + info.threadstack_offset = 0;
12168 addr = vm_unmapped_area(&info);
12169
12170 /*
12171 diff --git a/arch/um/Makefile b/arch/um/Makefile
12172 index 36e658a..71a5c5a 100644
12173 --- a/arch/um/Makefile
12174 +++ b/arch/um/Makefile
12175 @@ -72,6 +72,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
12176 $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
12177 $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
12178
12179 +ifdef CONSTIFY_PLUGIN
12180 +USER_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12181 +endif
12182 +
12183 #This will adjust *FLAGS accordingly to the platform.
12184 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
12185
12186 diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
12187 index 19e1bdd..3665b77 100644
12188 --- a/arch/um/include/asm/cache.h
12189 +++ b/arch/um/include/asm/cache.h
12190 @@ -1,6 +1,7 @@
12191 #ifndef __UM_CACHE_H
12192 #define __UM_CACHE_H
12193
12194 +#include <linux/const.h>
12195
12196 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
12197 # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
12198 @@ -12,6 +13,6 @@
12199 # define L1_CACHE_SHIFT 5
12200 #endif
12201
12202 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12203 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12204
12205 #endif
12206 diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
12207 index 2e0a6b1..a64d0f5 100644
12208 --- a/arch/um/include/asm/kmap_types.h
12209 +++ b/arch/um/include/asm/kmap_types.h
12210 @@ -8,6 +8,6 @@
12211
12212 /* No more #include "asm/arch/kmap_types.h" ! */
12213
12214 -#define KM_TYPE_NR 14
12215 +#define KM_TYPE_NR 15
12216
12217 #endif
12218 diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
12219 index 5ff53d9..5850cdf 100644
12220 --- a/arch/um/include/asm/page.h
12221 +++ b/arch/um/include/asm/page.h
12222 @@ -14,6 +14,9 @@
12223 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
12224 #define PAGE_MASK (~(PAGE_SIZE-1))
12225
12226 +#define ktla_ktva(addr) (addr)
12227 +#define ktva_ktla(addr) (addr)
12228 +
12229 #ifndef __ASSEMBLY__
12230
12231 struct page;
12232 diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
12233 index 0032f92..cd151e0 100644
12234 --- a/arch/um/include/asm/pgtable-3level.h
12235 +++ b/arch/um/include/asm/pgtable-3level.h
12236 @@ -58,6 +58,7 @@
12237 #define pud_present(x) (pud_val(x) & _PAGE_PRESENT)
12238 #define pud_populate(mm, pud, pmd) \
12239 set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
12240 +#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
12241
12242 #ifdef CONFIG_64BIT
12243 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
12244 diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
12245 index f17bca8..48adb87 100644
12246 --- a/arch/um/kernel/process.c
12247 +++ b/arch/um/kernel/process.c
12248 @@ -356,22 +356,6 @@ int singlestepping(void * t)
12249 return 2;
12250 }
12251
12252 -/*
12253 - * Only x86 and x86_64 have an arch_align_stack().
12254 - * All other arches have "#define arch_align_stack(x) (x)"
12255 - * in their asm/exec.h
12256 - * As this is included in UML from asm-um/system-generic.h,
12257 - * we can use it to behave as the subarch does.
12258 - */
12259 -#ifndef arch_align_stack
12260 -unsigned long arch_align_stack(unsigned long sp)
12261 -{
12262 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
12263 - sp -= get_random_int() % 8192;
12264 - return sp & ~0xf;
12265 -}
12266 -#endif
12267 -
12268 unsigned long get_wchan(struct task_struct *p)
12269 {
12270 unsigned long stack_page, sp, ip;
12271 diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
12272 index ad8f795..2c7eec6 100644
12273 --- a/arch/unicore32/include/asm/cache.h
12274 +++ b/arch/unicore32/include/asm/cache.h
12275 @@ -12,8 +12,10 @@
12276 #ifndef __UNICORE_CACHE_H__
12277 #define __UNICORE_CACHE_H__
12278
12279 -#define L1_CACHE_SHIFT (5)
12280 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12281 +#include <linux/const.h>
12282 +
12283 +#define L1_CACHE_SHIFT 5
12284 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12285
12286 /*
12287 * Memory returned by kmalloc() may be used for DMA, so we must make
12288 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
12289 index 6b8b429..7b21fe4 100644
12290 --- a/arch/x86/Kconfig
12291 +++ b/arch/x86/Kconfig
12292 @@ -127,7 +127,7 @@ config X86
12293 select RTC_LIB
12294 select HAVE_DEBUG_STACKOVERFLOW
12295 select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
12296 - select HAVE_CC_STACKPROTECTOR
12297 + select HAVE_CC_STACKPROTECTOR if X86_64 || !PAX_MEMORY_UDEREF
12298 select GENERIC_CPU_AUTOPROBE
12299 select HAVE_ARCH_AUDITSYSCALL
12300
12301 @@ -251,7 +251,7 @@ config X86_HT
12302
12303 config X86_32_LAZY_GS
12304 def_bool y
12305 - depends on X86_32 && !CC_STACKPROTECTOR
12306 + depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
12307
12308 config ARCH_HWEIGHT_CFLAGS
12309 string
12310 @@ -545,6 +545,7 @@ config SCHED_OMIT_FRAME_POINTER
12311
12312 menuconfig HYPERVISOR_GUEST
12313 bool "Linux guest support"
12314 + depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_GUEST || (GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_XEN)
12315 ---help---
12316 Say Y here to enable options for running Linux under various hyper-
12317 visors. This option enables basic hypervisor detection and platform
12318 @@ -1054,6 +1055,7 @@ choice
12319
12320 config NOHIGHMEM
12321 bool "off"
12322 + depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12323 ---help---
12324 Linux can use up to 64 Gigabytes of physical memory on x86 systems.
12325 However, the address space of 32-bit x86 processors is only 4
12326 @@ -1090,6 +1092,7 @@ config NOHIGHMEM
12327
12328 config HIGHMEM4G
12329 bool "4GB"
12330 + depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12331 ---help---
12332 Select this if you have a 32-bit processor and between 1 and 4
12333 gigabytes of physical RAM.
12334 @@ -1142,7 +1145,7 @@ config PAGE_OFFSET
12335 hex
12336 default 0xB0000000 if VMSPLIT_3G_OPT
12337 default 0x80000000 if VMSPLIT_2G
12338 - default 0x78000000 if VMSPLIT_2G_OPT
12339 + default 0x70000000 if VMSPLIT_2G_OPT
12340 default 0x40000000 if VMSPLIT_1G
12341 default 0xC0000000
12342 depends on X86_32
12343 @@ -1555,6 +1558,7 @@ source kernel/Kconfig.hz
12344
12345 config KEXEC
12346 bool "kexec system call"
12347 + depends on !GRKERNSEC_KMEM
12348 ---help---
12349 kexec is a system call that implements the ability to shutdown your
12350 current kernel, and to start another kernel. It is like a reboot
12351 @@ -1706,7 +1710,9 @@ config X86_NEED_RELOCS
12352
12353 config PHYSICAL_ALIGN
12354 hex "Alignment value to which kernel should be aligned"
12355 - default "0x200000"
12356 + default "0x1000000"
12357 + range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
12358 + range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
12359 range 0x2000 0x1000000 if X86_32
12360 range 0x200000 0x1000000 if X86_64
12361 ---help---
12362 @@ -1789,6 +1795,7 @@ config COMPAT_VDSO
12363 def_bool n
12364 prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
12365 depends on X86_32 || IA32_EMULATION
12366 + depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
12367 ---help---
12368 Certain buggy versions of glibc will crash if they are
12369 presented with a 32-bit vDSO that is not mapped at the address
12370 diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
12371 index 6983314..54ad7e8 100644
12372 --- a/arch/x86/Kconfig.cpu
12373 +++ b/arch/x86/Kconfig.cpu
12374 @@ -319,7 +319,7 @@ config X86_PPRO_FENCE
12375
12376 config X86_F00F_BUG
12377 def_bool y
12378 - depends on M586MMX || M586TSC || M586 || M486
12379 + depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
12380
12381 config X86_INVD_BUG
12382 def_bool y
12383 @@ -327,7 +327,7 @@ config X86_INVD_BUG
12384
12385 config X86_ALIGNMENT_16
12386 def_bool y
12387 - depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12388 + depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12389
12390 config X86_INTEL_USERCOPY
12391 def_bool y
12392 @@ -369,7 +369,7 @@ config X86_CMPXCHG64
12393 # generates cmov.
12394 config X86_CMOV
12395 def_bool y
12396 - depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12397 + depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12398
12399 config X86_MINIMUM_CPU_FAMILY
12400 int
12401 diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
12402 index 61bd2ad..50b625d 100644
12403 --- a/arch/x86/Kconfig.debug
12404 +++ b/arch/x86/Kconfig.debug
12405 @@ -93,7 +93,7 @@ config EFI_PGT_DUMP
12406 config DEBUG_RODATA
12407 bool "Write protect kernel read-only data structures"
12408 default y
12409 - depends on DEBUG_KERNEL
12410 + depends on DEBUG_KERNEL && BROKEN
12411 ---help---
12412 Mark the kernel read-only data as write-protected in the pagetables,
12413 in order to catch accidental (and incorrect) writes to such const
12414 @@ -111,7 +111,7 @@ config DEBUG_RODATA_TEST
12415
12416 config DEBUG_SET_MODULE_RONX
12417 bool "Set loadable kernel module data as NX and text as RO"
12418 - depends on MODULES
12419 + depends on MODULES && BROKEN
12420 ---help---
12421 This option helps catch unintended modifications to loadable
12422 kernel module's text and read-only data. It also prevents execution
12423 diff --git a/arch/x86/Makefile b/arch/x86/Makefile
12424 index 33f71b0..c2cefa2 100644
12425 --- a/arch/x86/Makefile
12426 +++ b/arch/x86/Makefile
12427 @@ -71,9 +71,6 @@ ifeq ($(CONFIG_X86_32),y)
12428 # CPU-specific tuning. Anything which can be shared with UML should go here.
12429 include $(srctree)/arch/x86/Makefile_32.cpu
12430 KBUILD_CFLAGS += $(cflags-y)
12431 -
12432 - # temporary until string.h is fixed
12433 - KBUILD_CFLAGS += -ffreestanding
12434 else
12435 BITS := 64
12436 UTS_MACHINE := x86_64
12437 @@ -114,6 +111,9 @@ else
12438 KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
12439 endif
12440
12441 +# temporary until string.h is fixed
12442 +KBUILD_CFLAGS += -ffreestanding
12443 +
12444 # Make sure compiler does not have buggy stack-protector support.
12445 ifdef CONFIG_CC_STACKPROTECTOR
12446 cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
12447 @@ -271,3 +271,12 @@ define archhelp
12448 echo ' FDINITRD=file initrd for the booted kernel'
12449 echo ' kvmconfig - Enable additional options for guest kernel support'
12450 endef
12451 +
12452 +define OLD_LD
12453 +
12454 +*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
12455 +*** Please upgrade your binutils to 2.18 or newer
12456 +endef
12457 +
12458 +archprepare:
12459 + $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
12460 diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
12461 index dbe8dd2..2f0a98f 100644
12462 --- a/arch/x86/boot/Makefile
12463 +++ b/arch/x86/boot/Makefile
12464 @@ -52,6 +52,9 @@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
12465 # ---------------------------------------------------------------------------
12466
12467 KBUILD_CFLAGS := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
12468 +ifdef CONSTIFY_PLUGIN
12469 +KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12470 +endif
12471 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12472 GCOV_PROFILE := n
12473
12474 diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
12475 index 878e4b9..20537ab 100644
12476 --- a/arch/x86/boot/bitops.h
12477 +++ b/arch/x86/boot/bitops.h
12478 @@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12479 u8 v;
12480 const u32 *p = (const u32 *)addr;
12481
12482 - asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12483 + asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12484 return v;
12485 }
12486
12487 @@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12488
12489 static inline void set_bit(int nr, void *addr)
12490 {
12491 - asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12492 + asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12493 }
12494
12495 #endif /* BOOT_BITOPS_H */
12496 diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
12497 index bd49ec6..94c7f58 100644
12498 --- a/arch/x86/boot/boot.h
12499 +++ b/arch/x86/boot/boot.h
12500 @@ -84,7 +84,7 @@ static inline void io_delay(void)
12501 static inline u16 ds(void)
12502 {
12503 u16 seg;
12504 - asm("movw %%ds,%0" : "=rm" (seg));
12505 + asm volatile("movw %%ds,%0" : "=rm" (seg));
12506 return seg;
12507 }
12508
12509 diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
12510 index 0fcd913..3bb5c42 100644
12511 --- a/arch/x86/boot/compressed/Makefile
12512 +++ b/arch/x86/boot/compressed/Makefile
12513 @@ -16,6 +16,9 @@ KBUILD_CFLAGS += $(cflags-y)
12514 KBUILD_CFLAGS += -mno-mmx -mno-sse
12515 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
12516 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
12517 +ifdef CONSTIFY_PLUGIN
12518 +KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12519 +endif
12520
12521 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12522 GCOV_PROFILE := n
12523 diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
12524 index a53440e..c3dbf1e 100644
12525 --- a/arch/x86/boot/compressed/efi_stub_32.S
12526 +++ b/arch/x86/boot/compressed/efi_stub_32.S
12527 @@ -46,16 +46,13 @@ ENTRY(efi_call_phys)
12528 * parameter 2, ..., param n. To make things easy, we save the return
12529 * address of efi_call_phys in a global variable.
12530 */
12531 - popl %ecx
12532 - movl %ecx, saved_return_addr(%edx)
12533 - /* get the function pointer into ECX*/
12534 - popl %ecx
12535 - movl %ecx, efi_rt_function_ptr(%edx)
12536 + popl saved_return_addr(%edx)
12537 + popl efi_rt_function_ptr(%edx)
12538
12539 /*
12540 * 3. Call the physical function.
12541 */
12542 - call *%ecx
12543 + call *efi_rt_function_ptr(%edx)
12544
12545 /*
12546 * 4. Balance the stack. And because EAX contain the return value,
12547 @@ -67,15 +64,12 @@ ENTRY(efi_call_phys)
12548 1: popl %edx
12549 subl $1b, %edx
12550
12551 - movl efi_rt_function_ptr(%edx), %ecx
12552 - pushl %ecx
12553 + pushl efi_rt_function_ptr(%edx)
12554
12555 /*
12556 * 10. Push the saved return address onto the stack and return.
12557 */
12558 - movl saved_return_addr(%edx), %ecx
12559 - pushl %ecx
12560 - ret
12561 + jmpl *saved_return_addr(%edx)
12562 ENDPROC(efi_call_phys)
12563 .previous
12564
12565 diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
12566 index cbed140..5f2ca57 100644
12567 --- a/arch/x86/boot/compressed/head_32.S
12568 +++ b/arch/x86/boot/compressed/head_32.S
12569 @@ -140,10 +140,10 @@ preferred_addr:
12570 addl %eax, %ebx
12571 notl %eax
12572 andl %eax, %ebx
12573 - cmpl $LOAD_PHYSICAL_ADDR, %ebx
12574 + cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12575 jge 1f
12576 #endif
12577 - movl $LOAD_PHYSICAL_ADDR, %ebx
12578 + movl $____LOAD_PHYSICAL_ADDR, %ebx
12579 1:
12580
12581 /* Target address to relocate to for decompression */
12582 diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
12583 index 0d558ee..58f257e 100644
12584 --- a/arch/x86/boot/compressed/head_64.S
12585 +++ b/arch/x86/boot/compressed/head_64.S
12586 @@ -94,10 +94,10 @@ ENTRY(startup_32)
12587 addl %eax, %ebx
12588 notl %eax
12589 andl %eax, %ebx
12590 - cmpl $LOAD_PHYSICAL_ADDR, %ebx
12591 + cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12592 jge 1f
12593 #endif
12594 - movl $LOAD_PHYSICAL_ADDR, %ebx
12595 + movl $____LOAD_PHYSICAL_ADDR, %ebx
12596 1:
12597
12598 /* Target address to relocate to for decompression */
12599 @@ -322,10 +322,10 @@ preferred_addr:
12600 addq %rax, %rbp
12601 notq %rax
12602 andq %rax, %rbp
12603 - cmpq $LOAD_PHYSICAL_ADDR, %rbp
12604 + cmpq $____LOAD_PHYSICAL_ADDR, %rbp
12605 jge 1f
12606 #endif
12607 - movq $LOAD_PHYSICAL_ADDR, %rbp
12608 + movq $____LOAD_PHYSICAL_ADDR, %rbp
12609 1:
12610
12611 /* Target address to relocate to for decompression */
12612 @@ -431,8 +431,8 @@ gdt:
12613 .long gdt
12614 .word 0
12615 .quad 0x0000000000000000 /* NULL descriptor */
12616 - .quad 0x00af9a000000ffff /* __KERNEL_CS */
12617 - .quad 0x00cf92000000ffff /* __KERNEL_DS */
12618 + .quad 0x00af9b000000ffff /* __KERNEL_CS */
12619 + .quad 0x00cf93000000ffff /* __KERNEL_DS */
12620 .quad 0x0080890000000000 /* TS descriptor */
12621 .quad 0x0000000000000000 /* TS continued */
12622 gdt_end:
12623 diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
12624 index 57ab74d..7c52182 100644
12625 --- a/arch/x86/boot/compressed/misc.c
12626 +++ b/arch/x86/boot/compressed/misc.c
12627 @@ -242,7 +242,7 @@ static void handle_relocations(void *output, unsigned long output_len)
12628 * Calculate the delta between where vmlinux was linked to load
12629 * and where it was actually loaded.
12630 */
12631 - delta = min_addr - LOAD_PHYSICAL_ADDR;
12632 + delta = min_addr - ____LOAD_PHYSICAL_ADDR;
12633 if (!delta) {
12634 debug_putstr("No relocation needed... ");
12635 return;
12636 @@ -312,7 +312,7 @@ static void parse_elf(void *output)
12637 Elf32_Ehdr ehdr;
12638 Elf32_Phdr *phdrs, *phdr;
12639 #endif
12640 - void *dest;
12641 + void *dest, *prev;
12642 int i;
12643
12644 memcpy(&ehdr, output, sizeof(ehdr));
12645 @@ -339,13 +339,16 @@ static void parse_elf(void *output)
12646 case PT_LOAD:
12647 #ifdef CONFIG_RELOCATABLE
12648 dest = output;
12649 - dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
12650 + dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
12651 #else
12652 dest = (void *)(phdr->p_paddr);
12653 #endif
12654 memcpy(dest,
12655 output + phdr->p_offset,
12656 phdr->p_filesz);
12657 + if (i)
12658 + memset(prev, 0xff, dest - prev);
12659 + prev = dest + phdr->p_filesz;
12660 break;
12661 default: /* Ignore other PT_* */ break;
12662 }
12663 @@ -395,7 +398,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
12664 error("Destination address too large");
12665 #endif
12666 #ifndef CONFIG_RELOCATABLE
12667 - if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
12668 + if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
12669 error("Wrong destination address");
12670 #endif
12671
12672 diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
12673 index 1fd7d57..0f7d096 100644
12674 --- a/arch/x86/boot/cpucheck.c
12675 +++ b/arch/x86/boot/cpucheck.c
12676 @@ -125,9 +125,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12677 u32 ecx = MSR_K7_HWCR;
12678 u32 eax, edx;
12679
12680 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12681 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12682 eax &= ~(1 << 15);
12683 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12684 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12685
12686 get_cpuflags(); /* Make sure it really did something */
12687 err = check_cpuflags();
12688 @@ -140,9 +140,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12689 u32 ecx = MSR_VIA_FCR;
12690 u32 eax, edx;
12691
12692 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12693 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12694 eax |= (1<<1)|(1<<7);
12695 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12696 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12697
12698 set_bit(X86_FEATURE_CX8, cpu.flags);
12699 err = check_cpuflags();
12700 @@ -153,12 +153,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12701 u32 eax, edx;
12702 u32 level = 1;
12703
12704 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12705 - asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12706 - asm("cpuid"
12707 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12708 + asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12709 + asm volatile("cpuid"
12710 : "+a" (level), "=d" (cpu.flags[0])
12711 : : "ecx", "ebx");
12712 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12713 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12714
12715 err = check_cpuflags();
12716 } else if (err == 0x01 &&
12717 diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
12718 index 84c2234..3ef6360 100644
12719 --- a/arch/x86/boot/header.S
12720 +++ b/arch/x86/boot/header.S
12721 @@ -420,10 +420,14 @@ setup_data: .quad 0 # 64-bit physical pointer to
12722 # single linked list of
12723 # struct setup_data
12724
12725 -pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
12726 +pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr
12727
12728 #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
12729 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
12730 +#define VO_INIT_SIZE (VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
12731 +#else
12732 #define VO_INIT_SIZE (VO__end - VO__text)
12733 +#endif
12734 #if ZO_INIT_SIZE > VO_INIT_SIZE
12735 #define INIT_SIZE ZO_INIT_SIZE
12736 #else
12737 diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
12738 index db75d07..8e6d0af 100644
12739 --- a/arch/x86/boot/memory.c
12740 +++ b/arch/x86/boot/memory.c
12741 @@ -19,7 +19,7 @@
12742
12743 static int detect_memory_e820(void)
12744 {
12745 - int count = 0;
12746 + unsigned int count = 0;
12747 struct biosregs ireg, oreg;
12748 struct e820entry *desc = boot_params.e820_map;
12749 static struct e820entry buf; /* static so it is zeroed */
12750 diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
12751 index ba3e100..6501b8f 100644
12752 --- a/arch/x86/boot/video-vesa.c
12753 +++ b/arch/x86/boot/video-vesa.c
12754 @@ -201,6 +201,7 @@ static void vesa_store_pm_info(void)
12755
12756 boot_params.screen_info.vesapm_seg = oreg.es;
12757 boot_params.screen_info.vesapm_off = oreg.di;
12758 + boot_params.screen_info.vesapm_size = oreg.cx;
12759 }
12760
12761 /*
12762 diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
12763 index 43eda28..5ab5fdb 100644
12764 --- a/arch/x86/boot/video.c
12765 +++ b/arch/x86/boot/video.c
12766 @@ -96,7 +96,7 @@ static void store_mode_params(void)
12767 static unsigned int get_entry(void)
12768 {
12769 char entry_buf[4];
12770 - int i, len = 0;
12771 + unsigned int i, len = 0;
12772 int key;
12773 unsigned int v;
12774
12775 diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
12776 index 9105655..41779c1 100644
12777 --- a/arch/x86/crypto/aes-x86_64-asm_64.S
12778 +++ b/arch/x86/crypto/aes-x86_64-asm_64.S
12779 @@ -8,6 +8,8 @@
12780 * including this sentence is retained in full.
12781 */
12782
12783 +#include <asm/alternative-asm.h>
12784 +
12785 .extern crypto_ft_tab
12786 .extern crypto_it_tab
12787 .extern crypto_fl_tab
12788 @@ -70,6 +72,8 @@
12789 je B192; \
12790 leaq 32(r9),r9;
12791
12792 +#define ret pax_force_retaddr; ret
12793 +
12794 #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
12795 movq r1,r2; \
12796 movq r3,r4; \
12797 diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
12798 index 477e9d7..c92c7d8 100644
12799 --- a/arch/x86/crypto/aesni-intel_asm.S
12800 +++ b/arch/x86/crypto/aesni-intel_asm.S
12801 @@ -31,6 +31,7 @@
12802
12803 #include <linux/linkage.h>
12804 #include <asm/inst.h>
12805 +#include <asm/alternative-asm.h>
12806
12807 #ifdef __x86_64__
12808 .data
12809 @@ -205,7 +206,7 @@ enc: .octa 0x2
12810 * num_initial_blocks = b mod 4
12811 * encrypt the initial num_initial_blocks blocks and apply ghash on
12812 * the ciphertext
12813 -* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
12814 +* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
12815 * are clobbered
12816 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
12817 */
12818 @@ -214,8 +215,8 @@ enc: .octa 0x2
12819 .macro INITIAL_BLOCKS_DEC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
12820 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
12821 mov arg7, %r10 # %r10 = AAD
12822 - mov arg8, %r12 # %r12 = aadLen
12823 - mov %r12, %r11
12824 + mov arg8, %r15 # %r15 = aadLen
12825 + mov %r15, %r11
12826 pxor %xmm\i, %xmm\i
12827 _get_AAD_loop\num_initial_blocks\operation:
12828 movd (%r10), \TMP1
12829 @@ -223,15 +224,15 @@ _get_AAD_loop\num_initial_blocks\operation:
12830 psrldq $4, %xmm\i
12831 pxor \TMP1, %xmm\i
12832 add $4, %r10
12833 - sub $4, %r12
12834 + sub $4, %r15
12835 jne _get_AAD_loop\num_initial_blocks\operation
12836 cmp $16, %r11
12837 je _get_AAD_loop2_done\num_initial_blocks\operation
12838 - mov $16, %r12
12839 + mov $16, %r15
12840 _get_AAD_loop2\num_initial_blocks\operation:
12841 psrldq $4, %xmm\i
12842 - sub $4, %r12
12843 - cmp %r11, %r12
12844 + sub $4, %r15
12845 + cmp %r11, %r15
12846 jne _get_AAD_loop2\num_initial_blocks\operation
12847 _get_AAD_loop2_done\num_initial_blocks\operation:
12848 movdqa SHUF_MASK(%rip), %xmm14
12849 @@ -443,7 +444,7 @@ _initial_blocks_done\num_initial_blocks\operation:
12850 * num_initial_blocks = b mod 4
12851 * encrypt the initial num_initial_blocks blocks and apply ghash on
12852 * the ciphertext
12853 -* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
12854 +* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
12855 * are clobbered
12856 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
12857 */
12858 @@ -452,8 +453,8 @@ _initial_blocks_done\num_initial_blocks\operation:
12859 .macro INITIAL_BLOCKS_ENC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
12860 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
12861 mov arg7, %r10 # %r10 = AAD
12862 - mov arg8, %r12 # %r12 = aadLen
12863 - mov %r12, %r11
12864 + mov arg8, %r15 # %r15 = aadLen
12865 + mov %r15, %r11
12866 pxor %xmm\i, %xmm\i
12867 _get_AAD_loop\num_initial_blocks\operation:
12868 movd (%r10), \TMP1
12869 @@ -461,15 +462,15 @@ _get_AAD_loop\num_initial_blocks\operation:
12870 psrldq $4, %xmm\i
12871 pxor \TMP1, %xmm\i
12872 add $4, %r10
12873 - sub $4, %r12
12874 + sub $4, %r15
12875 jne _get_AAD_loop\num_initial_blocks\operation
12876 cmp $16, %r11
12877 je _get_AAD_loop2_done\num_initial_blocks\operation
12878 - mov $16, %r12
12879 + mov $16, %r15
12880 _get_AAD_loop2\num_initial_blocks\operation:
12881 psrldq $4, %xmm\i
12882 - sub $4, %r12
12883 - cmp %r11, %r12
12884 + sub $4, %r15
12885 + cmp %r11, %r15
12886 jne _get_AAD_loop2\num_initial_blocks\operation
12887 _get_AAD_loop2_done\num_initial_blocks\operation:
12888 movdqa SHUF_MASK(%rip), %xmm14
12889 @@ -1269,7 +1270,7 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
12890 *
12891 *****************************************************************************/
12892 ENTRY(aesni_gcm_dec)
12893 - push %r12
12894 + push %r15
12895 push %r13
12896 push %r14
12897 mov %rsp, %r14
12898 @@ -1279,8 +1280,8 @@ ENTRY(aesni_gcm_dec)
12899 */
12900 sub $VARIABLE_OFFSET, %rsp
12901 and $~63, %rsp # align rsp to 64 bytes
12902 - mov %arg6, %r12
12903 - movdqu (%r12), %xmm13 # %xmm13 = HashKey
12904 + mov %arg6, %r15
12905 + movdqu (%r15), %xmm13 # %xmm13 = HashKey
12906 movdqa SHUF_MASK(%rip), %xmm2
12907 PSHUFB_XMM %xmm2, %xmm13
12908
12909 @@ -1308,10 +1309,10 @@ ENTRY(aesni_gcm_dec)
12910 movdqa %xmm13, HashKey(%rsp) # store HashKey<<1 (mod poly)
12911 mov %arg4, %r13 # save the number of bytes of plaintext/ciphertext
12912 and $-16, %r13 # %r13 = %r13 - (%r13 mod 16)
12913 - mov %r13, %r12
12914 - and $(3<<4), %r12
12915 + mov %r13, %r15
12916 + and $(3<<4), %r15
12917 jz _initial_num_blocks_is_0_decrypt
12918 - cmp $(2<<4), %r12
12919 + cmp $(2<<4), %r15
12920 jb _initial_num_blocks_is_1_decrypt
12921 je _initial_num_blocks_is_2_decrypt
12922 _initial_num_blocks_is_3_decrypt:
12923 @@ -1361,16 +1362,16 @@ _zero_cipher_left_decrypt:
12924 sub $16, %r11
12925 add %r13, %r11
12926 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte block
12927 - lea SHIFT_MASK+16(%rip), %r12
12928 - sub %r13, %r12
12929 + lea SHIFT_MASK+16(%rip), %r15
12930 + sub %r13, %r15
12931 # adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
12932 # (%r13 is the number of bytes in plaintext mod 16)
12933 - movdqu (%r12), %xmm2 # get the appropriate shuffle mask
12934 + movdqu (%r15), %xmm2 # get the appropriate shuffle mask
12935 PSHUFB_XMM %xmm2, %xmm1 # right shift 16-%r13 butes
12936
12937 movdqa %xmm1, %xmm2
12938 pxor %xmm1, %xmm0 # Ciphertext XOR E(K, Yn)
12939 - movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
12940 + movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
12941 # get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
12942 pand %xmm1, %xmm0 # mask out top 16-%r13 bytes of %xmm0
12943 pand %xmm1, %xmm2
12944 @@ -1399,9 +1400,9 @@ _less_than_8_bytes_left_decrypt:
12945 sub $1, %r13
12946 jne _less_than_8_bytes_left_decrypt
12947 _multiple_of_16_bytes_decrypt:
12948 - mov arg8, %r12 # %r13 = aadLen (number of bytes)
12949 - shl $3, %r12 # convert into number of bits
12950 - movd %r12d, %xmm15 # len(A) in %xmm15
12951 + mov arg8, %r15 # %r13 = aadLen (number of bytes)
12952 + shl $3, %r15 # convert into number of bits
12953 + movd %r15d, %xmm15 # len(A) in %xmm15
12954 shl $3, %arg4 # len(C) in bits (*128)
12955 MOVQ_R64_XMM %arg4, %xmm1
12956 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
12957 @@ -1440,7 +1441,8 @@ _return_T_done_decrypt:
12958 mov %r14, %rsp
12959 pop %r14
12960 pop %r13
12961 - pop %r12
12962 + pop %r15
12963 + pax_force_retaddr
12964 ret
12965 ENDPROC(aesni_gcm_dec)
12966
12967 @@ -1529,7 +1531,7 @@ ENDPROC(aesni_gcm_dec)
12968 * poly = x^128 + x^127 + x^126 + x^121 + 1
12969 ***************************************************************************/
12970 ENTRY(aesni_gcm_enc)
12971 - push %r12
12972 + push %r15
12973 push %r13
12974 push %r14
12975 mov %rsp, %r14
12976 @@ -1539,8 +1541,8 @@ ENTRY(aesni_gcm_enc)
12977 #
12978 sub $VARIABLE_OFFSET, %rsp
12979 and $~63, %rsp
12980 - mov %arg6, %r12
12981 - movdqu (%r12), %xmm13
12982 + mov %arg6, %r15
12983 + movdqu (%r15), %xmm13
12984 movdqa SHUF_MASK(%rip), %xmm2
12985 PSHUFB_XMM %xmm2, %xmm13
12986
12987 @@ -1564,13 +1566,13 @@ ENTRY(aesni_gcm_enc)
12988 movdqa %xmm13, HashKey(%rsp)
12989 mov %arg4, %r13 # %xmm13 holds HashKey<<1 (mod poly)
12990 and $-16, %r13
12991 - mov %r13, %r12
12992 + mov %r13, %r15
12993
12994 # Encrypt first few blocks
12995
12996 - and $(3<<4), %r12
12997 + and $(3<<4), %r15
12998 jz _initial_num_blocks_is_0_encrypt
12999 - cmp $(2<<4), %r12
13000 + cmp $(2<<4), %r15
13001 jb _initial_num_blocks_is_1_encrypt
13002 je _initial_num_blocks_is_2_encrypt
13003 _initial_num_blocks_is_3_encrypt:
13004 @@ -1623,14 +1625,14 @@ _zero_cipher_left_encrypt:
13005 sub $16, %r11
13006 add %r13, %r11
13007 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte blocks
13008 - lea SHIFT_MASK+16(%rip), %r12
13009 - sub %r13, %r12
13010 + lea SHIFT_MASK+16(%rip), %r15
13011 + sub %r13, %r15
13012 # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
13013 # (%r13 is the number of bytes in plaintext mod 16)
13014 - movdqu (%r12), %xmm2 # get the appropriate shuffle mask
13015 + movdqu (%r15), %xmm2 # get the appropriate shuffle mask
13016 PSHUFB_XMM %xmm2, %xmm1 # shift right 16-r13 byte
13017 pxor %xmm1, %xmm0 # Plaintext XOR Encrypt(K, Yn)
13018 - movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
13019 + movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
13020 # get the appropriate mask to mask out top 16-r13 bytes of xmm0
13021 pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
13022 movdqa SHUF_MASK(%rip), %xmm10
13023 @@ -1663,9 +1665,9 @@ _less_than_8_bytes_left_encrypt:
13024 sub $1, %r13
13025 jne _less_than_8_bytes_left_encrypt
13026 _multiple_of_16_bytes_encrypt:
13027 - mov arg8, %r12 # %r12 = addLen (number of bytes)
13028 - shl $3, %r12
13029 - movd %r12d, %xmm15 # len(A) in %xmm15
13030 + mov arg8, %r15 # %r15 = addLen (number of bytes)
13031 + shl $3, %r15
13032 + movd %r15d, %xmm15 # len(A) in %xmm15
13033 shl $3, %arg4 # len(C) in bits (*128)
13034 MOVQ_R64_XMM %arg4, %xmm1
13035 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
13036 @@ -1704,7 +1706,8 @@ _return_T_done_encrypt:
13037 mov %r14, %rsp
13038 pop %r14
13039 pop %r13
13040 - pop %r12
13041 + pop %r15
13042 + pax_force_retaddr
13043 ret
13044 ENDPROC(aesni_gcm_enc)
13045
13046 @@ -1722,6 +1725,7 @@ _key_expansion_256a:
13047 pxor %xmm1, %xmm0
13048 movaps %xmm0, (TKEYP)
13049 add $0x10, TKEYP
13050 + pax_force_retaddr
13051 ret
13052 ENDPROC(_key_expansion_128)
13053 ENDPROC(_key_expansion_256a)
13054 @@ -1748,6 +1752,7 @@ _key_expansion_192a:
13055 shufps $0b01001110, %xmm2, %xmm1
13056 movaps %xmm1, 0x10(TKEYP)
13057 add $0x20, TKEYP
13058 + pax_force_retaddr
13059 ret
13060 ENDPROC(_key_expansion_192a)
13061
13062 @@ -1768,6 +1773,7 @@ _key_expansion_192b:
13063
13064 movaps %xmm0, (TKEYP)
13065 add $0x10, TKEYP
13066 + pax_force_retaddr
13067 ret
13068 ENDPROC(_key_expansion_192b)
13069
13070 @@ -1781,6 +1787,7 @@ _key_expansion_256b:
13071 pxor %xmm1, %xmm2
13072 movaps %xmm2, (TKEYP)
13073 add $0x10, TKEYP
13074 + pax_force_retaddr
13075 ret
13076 ENDPROC(_key_expansion_256b)
13077
13078 @@ -1894,6 +1901,7 @@ ENTRY(aesni_set_key)
13079 #ifndef __x86_64__
13080 popl KEYP
13081 #endif
13082 + pax_force_retaddr
13083 ret
13084 ENDPROC(aesni_set_key)
13085
13086 @@ -1916,6 +1924,7 @@ ENTRY(aesni_enc)
13087 popl KLEN
13088 popl KEYP
13089 #endif
13090 + pax_force_retaddr
13091 ret
13092 ENDPROC(aesni_enc)
13093
13094 @@ -1974,6 +1983,7 @@ _aesni_enc1:
13095 AESENC KEY STATE
13096 movaps 0x70(TKEYP), KEY
13097 AESENCLAST KEY STATE
13098 + pax_force_retaddr
13099 ret
13100 ENDPROC(_aesni_enc1)
13101
13102 @@ -2083,6 +2093,7 @@ _aesni_enc4:
13103 AESENCLAST KEY STATE2
13104 AESENCLAST KEY STATE3
13105 AESENCLAST KEY STATE4
13106 + pax_force_retaddr
13107 ret
13108 ENDPROC(_aesni_enc4)
13109
13110 @@ -2106,6 +2117,7 @@ ENTRY(aesni_dec)
13111 popl KLEN
13112 popl KEYP
13113 #endif
13114 + pax_force_retaddr
13115 ret
13116 ENDPROC(aesni_dec)
13117
13118 @@ -2164,6 +2176,7 @@ _aesni_dec1:
13119 AESDEC KEY STATE
13120 movaps 0x70(TKEYP), KEY
13121 AESDECLAST KEY STATE
13122 + pax_force_retaddr
13123 ret
13124 ENDPROC(_aesni_dec1)
13125
13126 @@ -2273,6 +2286,7 @@ _aesni_dec4:
13127 AESDECLAST KEY STATE2
13128 AESDECLAST KEY STATE3
13129 AESDECLAST KEY STATE4
13130 + pax_force_retaddr
13131 ret
13132 ENDPROC(_aesni_dec4)
13133
13134 @@ -2331,6 +2345,7 @@ ENTRY(aesni_ecb_enc)
13135 popl KEYP
13136 popl LEN
13137 #endif
13138 + pax_force_retaddr
13139 ret
13140 ENDPROC(aesni_ecb_enc)
13141
13142 @@ -2390,6 +2405,7 @@ ENTRY(aesni_ecb_dec)
13143 popl KEYP
13144 popl LEN
13145 #endif
13146 + pax_force_retaddr
13147 ret
13148 ENDPROC(aesni_ecb_dec)
13149
13150 @@ -2432,6 +2448,7 @@ ENTRY(aesni_cbc_enc)
13151 popl LEN
13152 popl IVP
13153 #endif
13154 + pax_force_retaddr
13155 ret
13156 ENDPROC(aesni_cbc_enc)
13157
13158 @@ -2523,6 +2540,7 @@ ENTRY(aesni_cbc_dec)
13159 popl LEN
13160 popl IVP
13161 #endif
13162 + pax_force_retaddr
13163 ret
13164 ENDPROC(aesni_cbc_dec)
13165
13166 @@ -2550,6 +2568,7 @@ _aesni_inc_init:
13167 mov $1, TCTR_LOW
13168 MOVQ_R64_XMM TCTR_LOW INC
13169 MOVQ_R64_XMM CTR TCTR_LOW
13170 + pax_force_retaddr
13171 ret
13172 ENDPROC(_aesni_inc_init)
13173
13174 @@ -2579,6 +2598,7 @@ _aesni_inc:
13175 .Linc_low:
13176 movaps CTR, IV
13177 PSHUFB_XMM BSWAP_MASK IV
13178 + pax_force_retaddr
13179 ret
13180 ENDPROC(_aesni_inc)
13181
13182 @@ -2640,6 +2660,7 @@ ENTRY(aesni_ctr_enc)
13183 .Lctr_enc_ret:
13184 movups IV, (IVP)
13185 .Lctr_enc_just_ret:
13186 + pax_force_retaddr
13187 ret
13188 ENDPROC(aesni_ctr_enc)
13189
13190 @@ -2766,6 +2787,7 @@ ENTRY(aesni_xts_crypt8)
13191 pxor INC, STATE4
13192 movdqu STATE4, 0x70(OUTP)
13193
13194 + pax_force_retaddr
13195 ret
13196 ENDPROC(aesni_xts_crypt8)
13197
13198 diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13199 index 246c670..466e2d6 100644
13200 --- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
13201 +++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13202 @@ -21,6 +21,7 @@
13203 */
13204
13205 #include <linux/linkage.h>
13206 +#include <asm/alternative-asm.h>
13207
13208 .file "blowfish-x86_64-asm.S"
13209 .text
13210 @@ -149,9 +150,11 @@ ENTRY(__blowfish_enc_blk)
13211 jnz .L__enc_xor;
13212
13213 write_block();
13214 + pax_force_retaddr
13215 ret;
13216 .L__enc_xor:
13217 xor_block();
13218 + pax_force_retaddr
13219 ret;
13220 ENDPROC(__blowfish_enc_blk)
13221
13222 @@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
13223
13224 movq %r11, %rbp;
13225
13226 + pax_force_retaddr
13227 ret;
13228 ENDPROC(blowfish_dec_blk)
13229
13230 @@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
13231
13232 popq %rbx;
13233 popq %rbp;
13234 + pax_force_retaddr
13235 ret;
13236
13237 .L__enc_xor4:
13238 @@ -341,6 +346,7 @@ ENTRY(__blowfish_enc_blk_4way)
13239
13240 popq %rbx;
13241 popq %rbp;
13242 + pax_force_retaddr
13243 ret;
13244 ENDPROC(__blowfish_enc_blk_4way)
13245
13246 @@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
13247 popq %rbx;
13248 popq %rbp;
13249
13250 + pax_force_retaddr
13251 ret;
13252 ENDPROC(blowfish_dec_blk_4way)
13253 diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13254 index ce71f92..1dce7ec 100644
13255 --- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13256 +++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13257 @@ -16,6 +16,7 @@
13258 */
13259
13260 #include <linux/linkage.h>
13261 +#include <asm/alternative-asm.h>
13262
13263 #define CAMELLIA_TABLE_BYTE_LEN 272
13264
13265 @@ -191,6 +192,7 @@ roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13266 roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
13267 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
13268 %rcx, (%r9));
13269 + pax_force_retaddr
13270 ret;
13271 ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13272
13273 @@ -199,6 +201,7 @@ roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13274 roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
13275 %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
13276 %rax, (%r9));
13277 + pax_force_retaddr
13278 ret;
13279 ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13280
13281 @@ -780,6 +783,7 @@ __camellia_enc_blk16:
13282 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13283 %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
13284
13285 + pax_force_retaddr
13286 ret;
13287
13288 .align 8
13289 @@ -865,6 +869,7 @@ __camellia_dec_blk16:
13290 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13291 %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
13292
13293 + pax_force_retaddr
13294 ret;
13295
13296 .align 8
13297 @@ -904,6 +909,7 @@ ENTRY(camellia_ecb_enc_16way)
13298 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13299 %xmm8, %rsi);
13300
13301 + pax_force_retaddr
13302 ret;
13303 ENDPROC(camellia_ecb_enc_16way)
13304
13305 @@ -932,6 +938,7 @@ ENTRY(camellia_ecb_dec_16way)
13306 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13307 %xmm8, %rsi);
13308
13309 + pax_force_retaddr
13310 ret;
13311 ENDPROC(camellia_ecb_dec_16way)
13312
13313 @@ -981,6 +988,7 @@ ENTRY(camellia_cbc_dec_16way)
13314 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13315 %xmm8, %rsi);
13316
13317 + pax_force_retaddr
13318 ret;
13319 ENDPROC(camellia_cbc_dec_16way)
13320
13321 @@ -1092,6 +1100,7 @@ ENTRY(camellia_ctr_16way)
13322 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13323 %xmm8, %rsi);
13324
13325 + pax_force_retaddr
13326 ret;
13327 ENDPROC(camellia_ctr_16way)
13328
13329 @@ -1234,6 +1243,7 @@ camellia_xts_crypt_16way:
13330 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13331 %xmm8, %rsi);
13332
13333 + pax_force_retaddr
13334 ret;
13335 ENDPROC(camellia_xts_crypt_16way)
13336
13337 diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13338 index 0e0b886..5a3123c 100644
13339 --- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13340 +++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13341 @@ -11,6 +11,7 @@
13342 */
13343
13344 #include <linux/linkage.h>
13345 +#include <asm/alternative-asm.h>
13346
13347 #define CAMELLIA_TABLE_BYTE_LEN 272
13348
13349 @@ -230,6 +231,7 @@ roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13350 roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
13351 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
13352 %rcx, (%r9));
13353 + pax_force_retaddr
13354 ret;
13355 ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13356
13357 @@ -238,6 +240,7 @@ roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13358 roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
13359 %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
13360 %rax, (%r9));
13361 + pax_force_retaddr
13362 ret;
13363 ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13364
13365 @@ -820,6 +823,7 @@ __camellia_enc_blk32:
13366 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13367 %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
13368
13369 + pax_force_retaddr
13370 ret;
13371
13372 .align 8
13373 @@ -905,6 +909,7 @@ __camellia_dec_blk32:
13374 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13375 %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
13376
13377 + pax_force_retaddr
13378 ret;
13379
13380 .align 8
13381 @@ -948,6 +953,7 @@ ENTRY(camellia_ecb_enc_32way)
13382
13383 vzeroupper;
13384
13385 + pax_force_retaddr
13386 ret;
13387 ENDPROC(camellia_ecb_enc_32way)
13388
13389 @@ -980,6 +986,7 @@ ENTRY(camellia_ecb_dec_32way)
13390
13391 vzeroupper;
13392
13393 + pax_force_retaddr
13394 ret;
13395 ENDPROC(camellia_ecb_dec_32way)
13396
13397 @@ -1046,6 +1053,7 @@ ENTRY(camellia_cbc_dec_32way)
13398
13399 vzeroupper;
13400
13401 + pax_force_retaddr
13402 ret;
13403 ENDPROC(camellia_cbc_dec_32way)
13404
13405 @@ -1184,6 +1192,7 @@ ENTRY(camellia_ctr_32way)
13406
13407 vzeroupper;
13408
13409 + pax_force_retaddr
13410 ret;
13411 ENDPROC(camellia_ctr_32way)
13412
13413 @@ -1349,6 +1358,7 @@ camellia_xts_crypt_32way:
13414
13415 vzeroupper;
13416
13417 + pax_force_retaddr
13418 ret;
13419 ENDPROC(camellia_xts_crypt_32way)
13420
13421 diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
13422 index 310319c..db3d7b5 100644
13423 --- a/arch/x86/crypto/camellia-x86_64-asm_64.S
13424 +++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
13425 @@ -21,6 +21,7 @@
13426 */
13427
13428 #include <linux/linkage.h>
13429 +#include <asm/alternative-asm.h>
13430
13431 .file "camellia-x86_64-asm_64.S"
13432 .text
13433 @@ -228,12 +229,14 @@ ENTRY(__camellia_enc_blk)
13434 enc_outunpack(mov, RT1);
13435
13436 movq RRBP, %rbp;
13437 + pax_force_retaddr
13438 ret;
13439
13440 .L__enc_xor:
13441 enc_outunpack(xor, RT1);
13442
13443 movq RRBP, %rbp;
13444 + pax_force_retaddr
13445 ret;
13446 ENDPROC(__camellia_enc_blk)
13447
13448 @@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
13449 dec_outunpack();
13450
13451 movq RRBP, %rbp;
13452 + pax_force_retaddr
13453 ret;
13454 ENDPROC(camellia_dec_blk)
13455
13456 @@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
13457
13458 movq RRBP, %rbp;
13459 popq %rbx;
13460 + pax_force_retaddr
13461 ret;
13462
13463 .L__enc2_xor:
13464 @@ -470,6 +475,7 @@ ENTRY(__camellia_enc_blk_2way)
13465
13466 movq RRBP, %rbp;
13467 popq %rbx;
13468 + pax_force_retaddr
13469 ret;
13470 ENDPROC(__camellia_enc_blk_2way)
13471
13472 @@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
13473
13474 movq RRBP, %rbp;
13475 movq RXOR, %rbx;
13476 + pax_force_retaddr
13477 ret;
13478 ENDPROC(camellia_dec_blk_2way)
13479 diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13480 index c35fd5d..2d8c7db 100644
13481 --- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13482 +++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13483 @@ -24,6 +24,7 @@
13484 */
13485
13486 #include <linux/linkage.h>
13487 +#include <asm/alternative-asm.h>
13488
13489 .file "cast5-avx-x86_64-asm_64.S"
13490
13491 @@ -281,6 +282,7 @@ __cast5_enc_blk16:
13492 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13493 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13494
13495 + pax_force_retaddr
13496 ret;
13497 ENDPROC(__cast5_enc_blk16)
13498
13499 @@ -352,6 +354,7 @@ __cast5_dec_blk16:
13500 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13501 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13502
13503 + pax_force_retaddr
13504 ret;
13505
13506 .L__skip_dec:
13507 @@ -388,6 +391,7 @@ ENTRY(cast5_ecb_enc_16way)
13508 vmovdqu RR4, (6*4*4)(%r11);
13509 vmovdqu RL4, (7*4*4)(%r11);
13510
13511 + pax_force_retaddr
13512 ret;
13513 ENDPROC(cast5_ecb_enc_16way)
13514
13515 @@ -420,6 +424,7 @@ ENTRY(cast5_ecb_dec_16way)
13516 vmovdqu RR4, (6*4*4)(%r11);
13517 vmovdqu RL4, (7*4*4)(%r11);
13518
13519 + pax_force_retaddr
13520 ret;
13521 ENDPROC(cast5_ecb_dec_16way)
13522
13523 @@ -430,10 +435,10 @@ ENTRY(cast5_cbc_dec_16way)
13524 * %rdx: src
13525 */
13526
13527 - pushq %r12;
13528 + pushq %r14;
13529
13530 movq %rsi, %r11;
13531 - movq %rdx, %r12;
13532 + movq %rdx, %r14;
13533
13534 vmovdqu (0*16)(%rdx), RL1;
13535 vmovdqu (1*16)(%rdx), RR1;
13536 @@ -447,16 +452,16 @@ ENTRY(cast5_cbc_dec_16way)
13537 call __cast5_dec_blk16;
13538
13539 /* xor with src */
13540 - vmovq (%r12), RX;
13541 + vmovq (%r14), RX;
13542 vpshufd $0x4f, RX, RX;
13543 vpxor RX, RR1, RR1;
13544 - vpxor 0*16+8(%r12), RL1, RL1;
13545 - vpxor 1*16+8(%r12), RR2, RR2;
13546 - vpxor 2*16+8(%r12), RL2, RL2;
13547 - vpxor 3*16+8(%r12), RR3, RR3;
13548 - vpxor 4*16+8(%r12), RL3, RL3;
13549 - vpxor 5*16+8(%r12), RR4, RR4;
13550 - vpxor 6*16+8(%r12), RL4, RL4;
13551 + vpxor 0*16+8(%r14), RL1, RL1;
13552 + vpxor 1*16+8(%r14), RR2, RR2;
13553 + vpxor 2*16+8(%r14), RL2, RL2;
13554 + vpxor 3*16+8(%r14), RR3, RR3;
13555 + vpxor 4*16+8(%r14), RL3, RL3;
13556 + vpxor 5*16+8(%r14), RR4, RR4;
13557 + vpxor 6*16+8(%r14), RL4, RL4;
13558
13559 vmovdqu RR1, (0*16)(%r11);
13560 vmovdqu RL1, (1*16)(%r11);
13561 @@ -467,8 +472,9 @@ ENTRY(cast5_cbc_dec_16way)
13562 vmovdqu RR4, (6*16)(%r11);
13563 vmovdqu RL4, (7*16)(%r11);
13564
13565 - popq %r12;
13566 + popq %r14;
13567
13568 + pax_force_retaddr
13569 ret;
13570 ENDPROC(cast5_cbc_dec_16way)
13571
13572 @@ -480,10 +486,10 @@ ENTRY(cast5_ctr_16way)
13573 * %rcx: iv (big endian, 64bit)
13574 */
13575
13576 - pushq %r12;
13577 + pushq %r14;
13578
13579 movq %rsi, %r11;
13580 - movq %rdx, %r12;
13581 + movq %rdx, %r14;
13582
13583 vpcmpeqd RTMP, RTMP, RTMP;
13584 vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
13585 @@ -523,14 +529,14 @@ ENTRY(cast5_ctr_16way)
13586 call __cast5_enc_blk16;
13587
13588 /* dst = src ^ iv */
13589 - vpxor (0*16)(%r12), RR1, RR1;
13590 - vpxor (1*16)(%r12), RL1, RL1;
13591 - vpxor (2*16)(%r12), RR2, RR2;
13592 - vpxor (3*16)(%r12), RL2, RL2;
13593 - vpxor (4*16)(%r12), RR3, RR3;
13594 - vpxor (5*16)(%r12), RL3, RL3;
13595 - vpxor (6*16)(%r12), RR4, RR4;
13596 - vpxor (7*16)(%r12), RL4, RL4;
13597 + vpxor (0*16)(%r14), RR1, RR1;
13598 + vpxor (1*16)(%r14), RL1, RL1;
13599 + vpxor (2*16)(%r14), RR2, RR2;
13600 + vpxor (3*16)(%r14), RL2, RL2;
13601 + vpxor (4*16)(%r14), RR3, RR3;
13602 + vpxor (5*16)(%r14), RL3, RL3;
13603 + vpxor (6*16)(%r14), RR4, RR4;
13604 + vpxor (7*16)(%r14), RL4, RL4;
13605 vmovdqu RR1, (0*16)(%r11);
13606 vmovdqu RL1, (1*16)(%r11);
13607 vmovdqu RR2, (2*16)(%r11);
13608 @@ -540,7 +546,8 @@ ENTRY(cast5_ctr_16way)
13609 vmovdqu RR4, (6*16)(%r11);
13610 vmovdqu RL4, (7*16)(%r11);
13611
13612 - popq %r12;
13613 + popq %r14;
13614
13615 + pax_force_retaddr
13616 ret;
13617 ENDPROC(cast5_ctr_16way)
13618 diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13619 index e3531f8..e123f35 100644
13620 --- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13621 +++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13622 @@ -24,6 +24,7 @@
13623 */
13624
13625 #include <linux/linkage.h>
13626 +#include <asm/alternative-asm.h>
13627 #include "glue_helper-asm-avx.S"
13628
13629 .file "cast6-avx-x86_64-asm_64.S"
13630 @@ -295,6 +296,7 @@ __cast6_enc_blk8:
13631 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13632 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13633
13634 + pax_force_retaddr
13635 ret;
13636 ENDPROC(__cast6_enc_blk8)
13637
13638 @@ -340,6 +342,7 @@ __cast6_dec_blk8:
13639 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13640 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13641
13642 + pax_force_retaddr
13643 ret;
13644 ENDPROC(__cast6_dec_blk8)
13645
13646 @@ -358,6 +361,7 @@ ENTRY(cast6_ecb_enc_8way)
13647
13648 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13649
13650 + pax_force_retaddr
13651 ret;
13652 ENDPROC(cast6_ecb_enc_8way)
13653
13654 @@ -376,6 +380,7 @@ ENTRY(cast6_ecb_dec_8way)
13655
13656 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13657
13658 + pax_force_retaddr
13659 ret;
13660 ENDPROC(cast6_ecb_dec_8way)
13661
13662 @@ -386,19 +391,20 @@ ENTRY(cast6_cbc_dec_8way)
13663 * %rdx: src
13664 */
13665
13666 - pushq %r12;
13667 + pushq %r14;
13668
13669 movq %rsi, %r11;
13670 - movq %rdx, %r12;
13671 + movq %rdx, %r14;
13672
13673 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13674
13675 call __cast6_dec_blk8;
13676
13677 - store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13678 + store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13679
13680 - popq %r12;
13681 + popq %r14;
13682
13683 + pax_force_retaddr
13684 ret;
13685 ENDPROC(cast6_cbc_dec_8way)
13686
13687 @@ -410,20 +416,21 @@ ENTRY(cast6_ctr_8way)
13688 * %rcx: iv (little endian, 128bit)
13689 */
13690
13691 - pushq %r12;
13692 + pushq %r14;
13693
13694 movq %rsi, %r11;
13695 - movq %rdx, %r12;
13696 + movq %rdx, %r14;
13697
13698 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
13699 RD2, RX, RKR, RKM);
13700
13701 call __cast6_enc_blk8;
13702
13703 - store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13704 + store_ctr_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13705
13706 - popq %r12;
13707 + popq %r14;
13708
13709 + pax_force_retaddr
13710 ret;
13711 ENDPROC(cast6_ctr_8way)
13712
13713 @@ -446,6 +453,7 @@ ENTRY(cast6_xts_enc_8way)
13714 /* dst <= regs xor IVs(in dst) */
13715 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13716
13717 + pax_force_retaddr
13718 ret;
13719 ENDPROC(cast6_xts_enc_8way)
13720
13721 @@ -468,5 +476,6 @@ ENTRY(cast6_xts_dec_8way)
13722 /* dst <= regs xor IVs(in dst) */
13723 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13724
13725 + pax_force_retaddr
13726 ret;
13727 ENDPROC(cast6_xts_dec_8way)
13728 diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13729 index dbc4339..de6e120 100644
13730 --- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13731 +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13732 @@ -45,6 +45,7 @@
13733
13734 #include <asm/inst.h>
13735 #include <linux/linkage.h>
13736 +#include <asm/alternative-asm.h>
13737
13738 ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
13739
13740 @@ -312,6 +313,7 @@ do_return:
13741 popq %rsi
13742 popq %rdi
13743 popq %rbx
13744 + pax_force_retaddr
13745 ret
13746
13747 ################################################################
13748 diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
13749 index 185fad4..ff4cd36 100644
13750 --- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
13751 +++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
13752 @@ -18,6 +18,7 @@
13753
13754 #include <linux/linkage.h>
13755 #include <asm/inst.h>
13756 +#include <asm/alternative-asm.h>
13757
13758 .data
13759
13760 @@ -89,6 +90,7 @@ __clmul_gf128mul_ble:
13761 psrlq $1, T2
13762 pxor T2, T1
13763 pxor T1, DATA
13764 + pax_force_retaddr
13765 ret
13766 ENDPROC(__clmul_gf128mul_ble)
13767
13768 @@ -101,6 +103,7 @@ ENTRY(clmul_ghash_mul)
13769 call __clmul_gf128mul_ble
13770 PSHUFB_XMM BSWAP DATA
13771 movups DATA, (%rdi)
13772 + pax_force_retaddr
13773 ret
13774 ENDPROC(clmul_ghash_mul)
13775
13776 @@ -128,5 +131,6 @@ ENTRY(clmul_ghash_update)
13777 PSHUFB_XMM BSWAP DATA
13778 movups DATA, (%rdi)
13779 .Lupdate_just_ret:
13780 + pax_force_retaddr
13781 ret
13782 ENDPROC(clmul_ghash_update)
13783 diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
13784 index 9279e0b..c4b3d2c 100644
13785 --- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
13786 +++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
13787 @@ -1,4 +1,5 @@
13788 #include <linux/linkage.h>
13789 +#include <asm/alternative-asm.h>
13790
13791 # enter salsa20_encrypt_bytes
13792 ENTRY(salsa20_encrypt_bytes)
13793 @@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
13794 add %r11,%rsp
13795 mov %rdi,%rax
13796 mov %rsi,%rdx
13797 + pax_force_retaddr
13798 ret
13799 # bytesatleast65:
13800 ._bytesatleast65:
13801 @@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
13802 add %r11,%rsp
13803 mov %rdi,%rax
13804 mov %rsi,%rdx
13805 + pax_force_retaddr
13806 ret
13807 ENDPROC(salsa20_keysetup)
13808
13809 @@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
13810 add %r11,%rsp
13811 mov %rdi,%rax
13812 mov %rsi,%rdx
13813 + pax_force_retaddr
13814 ret
13815 ENDPROC(salsa20_ivsetup)
13816 diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
13817 index 2f202f4..d9164d6 100644
13818 --- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
13819 +++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
13820 @@ -24,6 +24,7 @@
13821 */
13822
13823 #include <linux/linkage.h>
13824 +#include <asm/alternative-asm.h>
13825 #include "glue_helper-asm-avx.S"
13826
13827 .file "serpent-avx-x86_64-asm_64.S"
13828 @@ -618,6 +619,7 @@ __serpent_enc_blk8_avx:
13829 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
13830 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
13831
13832 + pax_force_retaddr
13833 ret;
13834 ENDPROC(__serpent_enc_blk8_avx)
13835
13836 @@ -672,6 +674,7 @@ __serpent_dec_blk8_avx:
13837 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
13838 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
13839
13840 + pax_force_retaddr
13841 ret;
13842 ENDPROC(__serpent_dec_blk8_avx)
13843
13844 @@ -688,6 +691,7 @@ ENTRY(serpent_ecb_enc_8way_avx)
13845
13846 store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13847
13848 + pax_force_retaddr
13849 ret;
13850 ENDPROC(serpent_ecb_enc_8way_avx)
13851
13852 @@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_8way_avx)
13853
13854 store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
13855
13856 + pax_force_retaddr
13857 ret;
13858 ENDPROC(serpent_ecb_dec_8way_avx)
13859
13860 @@ -720,6 +725,7 @@ ENTRY(serpent_cbc_dec_8way_avx)
13861
13862 store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
13863
13864 + pax_force_retaddr
13865 ret;
13866 ENDPROC(serpent_cbc_dec_8way_avx)
13867
13868 @@ -738,6 +744,7 @@ ENTRY(serpent_ctr_8way_avx)
13869
13870 store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13871
13872 + pax_force_retaddr
13873 ret;
13874 ENDPROC(serpent_ctr_8way_avx)
13875
13876 @@ -758,6 +765,7 @@ ENTRY(serpent_xts_enc_8way_avx)
13877 /* dst <= regs xor IVs(in dst) */
13878 store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13879
13880 + pax_force_retaddr
13881 ret;
13882 ENDPROC(serpent_xts_enc_8way_avx)
13883
13884 @@ -778,5 +786,6 @@ ENTRY(serpent_xts_dec_8way_avx)
13885 /* dst <= regs xor IVs(in dst) */
13886 store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
13887
13888 + pax_force_retaddr
13889 ret;
13890 ENDPROC(serpent_xts_dec_8way_avx)
13891 diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
13892 index b222085..abd483c 100644
13893 --- a/arch/x86/crypto/serpent-avx2-asm_64.S
13894 +++ b/arch/x86/crypto/serpent-avx2-asm_64.S
13895 @@ -15,6 +15,7 @@
13896 */
13897
13898 #include <linux/linkage.h>
13899 +#include <asm/alternative-asm.h>
13900 #include "glue_helper-asm-avx2.S"
13901
13902 .file "serpent-avx2-asm_64.S"
13903 @@ -610,6 +611,7 @@ __serpent_enc_blk16:
13904 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
13905 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
13906
13907 + pax_force_retaddr
13908 ret;
13909 ENDPROC(__serpent_enc_blk16)
13910
13911 @@ -664,6 +666,7 @@ __serpent_dec_blk16:
13912 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
13913 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
13914
13915 + pax_force_retaddr
13916 ret;
13917 ENDPROC(__serpent_dec_blk16)
13918
13919 @@ -684,6 +687,7 @@ ENTRY(serpent_ecb_enc_16way)
13920
13921 vzeroupper;
13922
13923 + pax_force_retaddr
13924 ret;
13925 ENDPROC(serpent_ecb_enc_16way)
13926
13927 @@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_16way)
13928
13929 vzeroupper;
13930
13931 + pax_force_retaddr
13932 ret;
13933 ENDPROC(serpent_ecb_dec_16way)
13934
13935 @@ -725,6 +730,7 @@ ENTRY(serpent_cbc_dec_16way)
13936
13937 vzeroupper;
13938
13939 + pax_force_retaddr
13940 ret;
13941 ENDPROC(serpent_cbc_dec_16way)
13942
13943 @@ -748,6 +754,7 @@ ENTRY(serpent_ctr_16way)
13944
13945 vzeroupper;
13946
13947 + pax_force_retaddr
13948 ret;
13949 ENDPROC(serpent_ctr_16way)
13950
13951 @@ -772,6 +779,7 @@ ENTRY(serpent_xts_enc_16way)
13952
13953 vzeroupper;
13954
13955 + pax_force_retaddr
13956 ret;
13957 ENDPROC(serpent_xts_enc_16way)
13958
13959 @@ -796,5 +804,6 @@ ENTRY(serpent_xts_dec_16way)
13960
13961 vzeroupper;
13962
13963 + pax_force_retaddr
13964 ret;
13965 ENDPROC(serpent_xts_dec_16way)
13966 diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
13967 index acc066c..1559cc4 100644
13968 --- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
13969 +++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
13970 @@ -25,6 +25,7 @@
13971 */
13972
13973 #include <linux/linkage.h>
13974 +#include <asm/alternative-asm.h>
13975
13976 .file "serpent-sse2-x86_64-asm_64.S"
13977 .text
13978 @@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
13979 write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
13980 write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
13981
13982 + pax_force_retaddr
13983 ret;
13984
13985 .L__enc_xor8:
13986 xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
13987 xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
13988
13989 + pax_force_retaddr
13990 ret;
13991 ENDPROC(__serpent_enc_blk_8way)
13992
13993 @@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
13994 write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
13995 write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
13996
13997 + pax_force_retaddr
13998 ret;
13999 ENDPROC(serpent_dec_blk_8way)
14000 diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
14001 index a410950..9dfe7ad 100644
14002 --- a/arch/x86/crypto/sha1_ssse3_asm.S
14003 +++ b/arch/x86/crypto/sha1_ssse3_asm.S
14004 @@ -29,6 +29,7 @@
14005 */
14006
14007 #include <linux/linkage.h>
14008 +#include <asm/alternative-asm.h>
14009
14010 #define CTX %rdi // arg1
14011 #define BUF %rsi // arg2
14012 @@ -75,9 +76,9 @@
14013
14014 push %rbx
14015 push %rbp
14016 - push %r12
14017 + push %r14
14018
14019 - mov %rsp, %r12
14020 + mov %rsp, %r14
14021 sub $64, %rsp # allocate workspace
14022 and $~15, %rsp # align stack
14023
14024 @@ -99,11 +100,12 @@
14025 xor %rax, %rax
14026 rep stosq
14027
14028 - mov %r12, %rsp # deallocate workspace
14029 + mov %r14, %rsp # deallocate workspace
14030
14031 - pop %r12
14032 + pop %r14
14033 pop %rbp
14034 pop %rbx
14035 + pax_force_retaddr
14036 ret
14037
14038 ENDPROC(\name)
14039 diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
14040 index 642f156..51a513c 100644
14041 --- a/arch/x86/crypto/sha256-avx-asm.S
14042 +++ b/arch/x86/crypto/sha256-avx-asm.S
14043 @@ -49,6 +49,7 @@
14044
14045 #ifdef CONFIG_AS_AVX
14046 #include <linux/linkage.h>
14047 +#include <asm/alternative-asm.h>
14048
14049 ## assume buffers not aligned
14050 #define VMOVDQ vmovdqu
14051 @@ -460,6 +461,7 @@ done_hash:
14052 popq %r13
14053 popq %rbp
14054 popq %rbx
14055 + pax_force_retaddr
14056 ret
14057 ENDPROC(sha256_transform_avx)
14058
14059 diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
14060 index 9e86944..3795e6a 100644
14061 --- a/arch/x86/crypto/sha256-avx2-asm.S
14062 +++ b/arch/x86/crypto/sha256-avx2-asm.S
14063 @@ -50,6 +50,7 @@
14064
14065 #ifdef CONFIG_AS_AVX2
14066 #include <linux/linkage.h>
14067 +#include <asm/alternative-asm.h>
14068
14069 ## assume buffers not aligned
14070 #define VMOVDQ vmovdqu
14071 @@ -720,6 +721,7 @@ done_hash:
14072 popq %r12
14073 popq %rbp
14074 popq %rbx
14075 + pax_force_retaddr
14076 ret
14077 ENDPROC(sha256_transform_rorx)
14078
14079 diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
14080 index f833b74..8c62a9e 100644
14081 --- a/arch/x86/crypto/sha256-ssse3-asm.S
14082 +++ b/arch/x86/crypto/sha256-ssse3-asm.S
14083 @@ -47,6 +47,7 @@
14084 ########################################################################
14085
14086 #include <linux/linkage.h>
14087 +#include <asm/alternative-asm.h>
14088
14089 ## assume buffers not aligned
14090 #define MOVDQ movdqu
14091 @@ -471,6 +472,7 @@ done_hash:
14092 popq %rbp
14093 popq %rbx
14094
14095 + pax_force_retaddr
14096 ret
14097 ENDPROC(sha256_transform_ssse3)
14098
14099 diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
14100 index 974dde9..a823ff9 100644
14101 --- a/arch/x86/crypto/sha512-avx-asm.S
14102 +++ b/arch/x86/crypto/sha512-avx-asm.S
14103 @@ -49,6 +49,7 @@
14104
14105 #ifdef CONFIG_AS_AVX
14106 #include <linux/linkage.h>
14107 +#include <asm/alternative-asm.h>
14108
14109 .text
14110
14111 @@ -364,6 +365,7 @@ updateblock:
14112 mov frame_RSPSAVE(%rsp), %rsp
14113
14114 nowork:
14115 + pax_force_retaddr
14116 ret
14117 ENDPROC(sha512_transform_avx)
14118
14119 diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
14120 index 568b961..ed20c37 100644
14121 --- a/arch/x86/crypto/sha512-avx2-asm.S
14122 +++ b/arch/x86/crypto/sha512-avx2-asm.S
14123 @@ -51,6 +51,7 @@
14124
14125 #ifdef CONFIG_AS_AVX2
14126 #include <linux/linkage.h>
14127 +#include <asm/alternative-asm.h>
14128
14129 .text
14130
14131 @@ -678,6 +679,7 @@ done_hash:
14132
14133 # Restore Stack Pointer
14134 mov frame_RSPSAVE(%rsp), %rsp
14135 + pax_force_retaddr
14136 ret
14137 ENDPROC(sha512_transform_rorx)
14138
14139 diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
14140 index fb56855..6edd768 100644
14141 --- a/arch/x86/crypto/sha512-ssse3-asm.S
14142 +++ b/arch/x86/crypto/sha512-ssse3-asm.S
14143 @@ -48,6 +48,7 @@
14144 ########################################################################
14145
14146 #include <linux/linkage.h>
14147 +#include <asm/alternative-asm.h>
14148
14149 .text
14150
14151 @@ -363,6 +364,7 @@ updateblock:
14152 mov frame_RSPSAVE(%rsp), %rsp
14153
14154 nowork:
14155 + pax_force_retaddr
14156 ret
14157 ENDPROC(sha512_transform_ssse3)
14158
14159 diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14160 index 0505813..b067311 100644
14161 --- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14162 +++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14163 @@ -24,6 +24,7 @@
14164 */
14165
14166 #include <linux/linkage.h>
14167 +#include <asm/alternative-asm.h>
14168 #include "glue_helper-asm-avx.S"
14169
14170 .file "twofish-avx-x86_64-asm_64.S"
14171 @@ -284,6 +285,7 @@ __twofish_enc_blk8:
14172 outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
14173 outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
14174
14175 + pax_force_retaddr
14176 ret;
14177 ENDPROC(__twofish_enc_blk8)
14178
14179 @@ -324,6 +326,7 @@ __twofish_dec_blk8:
14180 outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
14181 outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
14182
14183 + pax_force_retaddr
14184 ret;
14185 ENDPROC(__twofish_dec_blk8)
14186
14187 @@ -342,6 +345,7 @@ ENTRY(twofish_ecb_enc_8way)
14188
14189 store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14190
14191 + pax_force_retaddr
14192 ret;
14193 ENDPROC(twofish_ecb_enc_8way)
14194
14195 @@ -360,6 +364,7 @@ ENTRY(twofish_ecb_dec_8way)
14196
14197 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14198
14199 + pax_force_retaddr
14200 ret;
14201 ENDPROC(twofish_ecb_dec_8way)
14202
14203 @@ -370,19 +375,20 @@ ENTRY(twofish_cbc_dec_8way)
14204 * %rdx: src
14205 */
14206
14207 - pushq %r12;
14208 + pushq %r14;
14209
14210 movq %rsi, %r11;
14211 - movq %rdx, %r12;
14212 + movq %rdx, %r14;
14213
14214 load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14215
14216 call __twofish_dec_blk8;
14217
14218 - store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14219 + store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14220
14221 - popq %r12;
14222 + popq %r14;
14223
14224 + pax_force_retaddr
14225 ret;
14226 ENDPROC(twofish_cbc_dec_8way)
14227
14228 @@ -394,20 +400,21 @@ ENTRY(twofish_ctr_8way)
14229 * %rcx: iv (little endian, 128bit)
14230 */
14231
14232 - pushq %r12;
14233 + pushq %r14;
14234
14235 movq %rsi, %r11;
14236 - movq %rdx, %r12;
14237 + movq %rdx, %r14;
14238
14239 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
14240 RD2, RX0, RX1, RY0);
14241
14242 call __twofish_enc_blk8;
14243
14244 - store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14245 + store_ctr_8way(%r14, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14246
14247 - popq %r12;
14248 + popq %r14;
14249
14250 + pax_force_retaddr
14251 ret;
14252 ENDPROC(twofish_ctr_8way)
14253
14254 @@ -430,6 +437,7 @@ ENTRY(twofish_xts_enc_8way)
14255 /* dst <= regs xor IVs(in dst) */
14256 store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14257
14258 + pax_force_retaddr
14259 ret;
14260 ENDPROC(twofish_xts_enc_8way)
14261
14262 @@ -452,5 +460,6 @@ ENTRY(twofish_xts_dec_8way)
14263 /* dst <= regs xor IVs(in dst) */
14264 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14265
14266 + pax_force_retaddr
14267 ret;
14268 ENDPROC(twofish_xts_dec_8way)
14269 diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14270 index 1c3b7ce..02f578d 100644
14271 --- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14272 +++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14273 @@ -21,6 +21,7 @@
14274 */
14275
14276 #include <linux/linkage.h>
14277 +#include <asm/alternative-asm.h>
14278
14279 .file "twofish-x86_64-asm-3way.S"
14280 .text
14281 @@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
14282 popq %r13;
14283 popq %r14;
14284 popq %r15;
14285 + pax_force_retaddr
14286 ret;
14287
14288 .L__enc_xor3:
14289 @@ -269,6 +271,7 @@ ENTRY(__twofish_enc_blk_3way)
14290 popq %r13;
14291 popq %r14;
14292 popq %r15;
14293 + pax_force_retaddr
14294 ret;
14295 ENDPROC(__twofish_enc_blk_3way)
14296
14297 @@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
14298 popq %r13;
14299 popq %r14;
14300 popq %r15;
14301 + pax_force_retaddr
14302 ret;
14303 ENDPROC(twofish_dec_blk_3way)
14304 diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
14305 index a039d21..524b8b2 100644
14306 --- a/arch/x86/crypto/twofish-x86_64-asm_64.S
14307 +++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
14308 @@ -22,6 +22,7 @@
14309
14310 #include <linux/linkage.h>
14311 #include <asm/asm-offsets.h>
14312 +#include <asm/alternative-asm.h>
14313
14314 #define a_offset 0
14315 #define b_offset 4
14316 @@ -265,6 +266,7 @@ ENTRY(twofish_enc_blk)
14317
14318 popq R1
14319 movq $1,%rax
14320 + pax_force_retaddr
14321 ret
14322 ENDPROC(twofish_enc_blk)
14323
14324 @@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
14325
14326 popq R1
14327 movq $1,%rax
14328 + pax_force_retaddr
14329 ret
14330 ENDPROC(twofish_dec_blk)
14331 diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
14332 index d21ff89..6da8e6e 100644
14333 --- a/arch/x86/ia32/ia32_aout.c
14334 +++ b/arch/x86/ia32/ia32_aout.c
14335 @@ -153,6 +153,8 @@ static int aout_core_dump(struct coredump_params *cprm)
14336 unsigned long dump_start, dump_size;
14337 struct user32 dump;
14338
14339 + memset(&dump, 0, sizeof(dump));
14340 +
14341 fs = get_fs();
14342 set_fs(KERNEL_DS);
14343 has_dumped = 1;
14344 diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
14345 index 2206757..85cbcfa 100644
14346 --- a/arch/x86/ia32/ia32_signal.c
14347 +++ b/arch/x86/ia32/ia32_signal.c
14348 @@ -218,7 +218,7 @@ asmlinkage long sys32_sigreturn(void)
14349 if (__get_user(set.sig[0], &frame->sc.oldmask)
14350 || (_COMPAT_NSIG_WORDS > 1
14351 && __copy_from_user((((char *) &set.sig) + 4),
14352 - &frame->extramask,
14353 + frame->extramask,
14354 sizeof(frame->extramask))))
14355 goto badframe;
14356
14357 @@ -338,7 +338,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
14358 sp -= frame_size;
14359 /* Align the stack pointer according to the i386 ABI,
14360 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
14361 - sp = ((sp + 4) & -16ul) - 4;
14362 + sp = ((sp - 12) & -16ul) - 4;
14363 return (void __user *) sp;
14364 }
14365
14366 @@ -386,7 +386,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14367 restorer = VDSO32_SYMBOL(current->mm->context.vdso,
14368 sigreturn);
14369 else
14370 - restorer = &frame->retcode;
14371 + restorer = frame->retcode;
14372 }
14373
14374 put_user_try {
14375 @@ -396,7 +396,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14376 * These are actually not used anymore, but left because some
14377 * gdb versions depend on them as a marker.
14378 */
14379 - put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14380 + put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14381 } put_user_catch(err);
14382
14383 if (err)
14384 @@ -438,7 +438,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14385 0xb8,
14386 __NR_ia32_rt_sigreturn,
14387 0x80cd,
14388 - 0,
14389 + 0
14390 };
14391
14392 frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
14393 @@ -461,16 +461,18 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14394
14395 if (ksig->ka.sa.sa_flags & SA_RESTORER)
14396 restorer = ksig->ka.sa.sa_restorer;
14397 + else if (current->mm->context.vdso)
14398 + /* Return stub is in 32bit vsyscall page */
14399 + restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
14400 else
14401 - restorer = VDSO32_SYMBOL(current->mm->context.vdso,
14402 - rt_sigreturn);
14403 + restorer = frame->retcode;
14404 put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
14405
14406 /*
14407 * Not actually used anymore, but left because some gdb
14408 * versions need it.
14409 */
14410 - put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14411 + put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14412 } put_user_catch(err);
14413
14414 err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
14415 diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
14416 index 4299eb0..c0687a7 100644
14417 --- a/arch/x86/ia32/ia32entry.S
14418 +++ b/arch/x86/ia32/ia32entry.S
14419 @@ -15,8 +15,10 @@
14420 #include <asm/irqflags.h>
14421 #include <asm/asm.h>
14422 #include <asm/smap.h>
14423 +#include <asm/pgtable.h>
14424 #include <linux/linkage.h>
14425 #include <linux/err.h>
14426 +#include <asm/alternative-asm.h>
14427
14428 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
14429 #include <linux/elf-em.h>
14430 @@ -62,12 +64,12 @@
14431 */
14432 .macro LOAD_ARGS32 offset, _r9=0
14433 .if \_r9
14434 - movl \offset+16(%rsp),%r9d
14435 + movl \offset+R9(%rsp),%r9d
14436 .endif
14437 - movl \offset+40(%rsp),%ecx
14438 - movl \offset+48(%rsp),%edx
14439 - movl \offset+56(%rsp),%esi
14440 - movl \offset+64(%rsp),%edi
14441 + movl \offset+RCX(%rsp),%ecx
14442 + movl \offset+RDX(%rsp),%edx
14443 + movl \offset+RSI(%rsp),%esi
14444 + movl \offset+RDI(%rsp),%edi
14445 movl %eax,%eax /* zero extension */
14446 .endm
14447
14448 @@ -96,6 +98,32 @@ ENTRY(native_irq_enable_sysexit)
14449 ENDPROC(native_irq_enable_sysexit)
14450 #endif
14451
14452 + .macro pax_enter_kernel_user
14453 + pax_set_fptr_mask
14454 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14455 + call pax_enter_kernel_user
14456 +#endif
14457 + .endm
14458 +
14459 + .macro pax_exit_kernel_user
14460 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14461 + call pax_exit_kernel_user
14462 +#endif
14463 +#ifdef CONFIG_PAX_RANDKSTACK
14464 + pushq %rax
14465 + pushq %r11
14466 + call pax_randomize_kstack
14467 + popq %r11
14468 + popq %rax
14469 +#endif
14470 + .endm
14471 +
14472 + .macro pax_erase_kstack
14473 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14474 + call pax_erase_kstack
14475 +#endif
14476 + .endm
14477 +
14478 /*
14479 * 32bit SYSENTER instruction entry.
14480 *
14481 @@ -122,12 +150,6 @@ ENTRY(ia32_sysenter_target)
14482 CFI_REGISTER rsp,rbp
14483 SWAPGS_UNSAFE_STACK
14484 movq PER_CPU_VAR(kernel_stack), %rsp
14485 - addq $(KERNEL_STACK_OFFSET),%rsp
14486 - /*
14487 - * No need to follow this irqs on/off section: the syscall
14488 - * disabled irqs, here we enable it straight after entry:
14489 - */
14490 - ENABLE_INTERRUPTS(CLBR_NONE)
14491 movl %ebp,%ebp /* zero extension */
14492 pushq_cfi $__USER32_DS
14493 /*CFI_REL_OFFSET ss,0*/
14494 @@ -135,24 +157,49 @@ ENTRY(ia32_sysenter_target)
14495 CFI_REL_OFFSET rsp,0
14496 pushfq_cfi
14497 /*CFI_REL_OFFSET rflags,0*/
14498 - movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
14499 - CFI_REGISTER rip,r10
14500 + orl $X86_EFLAGS_IF,(%rsp)
14501 + GET_THREAD_INFO(%r11)
14502 + movl TI_sysenter_return(%r11), %r11d
14503 + CFI_REGISTER rip,r11
14504 pushq_cfi $__USER32_CS
14505 /*CFI_REL_OFFSET cs,0*/
14506 movl %eax, %eax
14507 - pushq_cfi %r10
14508 + pushq_cfi %r11
14509 CFI_REL_OFFSET rip,0
14510 pushq_cfi %rax
14511 cld
14512 SAVE_ARGS 0,1,0
14513 + pax_enter_kernel_user
14514 +
14515 +#ifdef CONFIG_PAX_RANDKSTACK
14516 + pax_erase_kstack
14517 +#endif
14518 +
14519 + /*
14520 + * No need to follow this irqs on/off section: the syscall
14521 + * disabled irqs, here we enable it straight after entry:
14522 + */
14523 + ENABLE_INTERRUPTS(CLBR_NONE)
14524 /* no need to do an access_ok check here because rbp has been
14525 32bit zero extended */
14526 +
14527 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14528 + addq pax_user_shadow_base,%rbp
14529 + ASM_PAX_OPEN_USERLAND
14530 +#endif
14531 +
14532 ASM_STAC
14533 1: movl (%rbp),%ebp
14534 _ASM_EXTABLE(1b,ia32_badarg)
14535 ASM_CLAC
14536 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14537 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14538 +
14539 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14540 + ASM_PAX_CLOSE_USERLAND
14541 +#endif
14542 +
14543 + GET_THREAD_INFO(%r11)
14544 + orl $TS_COMPAT,TI_status(%r11)
14545 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14546 CFI_REMEMBER_STATE
14547 jnz sysenter_tracesys
14548 cmpq $(IA32_NR_syscalls-1),%rax
14549 @@ -162,15 +209,18 @@ sysenter_do_call:
14550 sysenter_dispatch:
14551 call *ia32_sys_call_table(,%rax,8)
14552 movq %rax,RAX-ARGOFFSET(%rsp)
14553 + GET_THREAD_INFO(%r11)
14554 DISABLE_INTERRUPTS(CLBR_NONE)
14555 TRACE_IRQS_OFF
14556 - testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14557 + testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14558 jnz sysexit_audit
14559 sysexit_from_sys_call:
14560 - andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14561 + pax_exit_kernel_user
14562 + pax_erase_kstack
14563 + andl $~TS_COMPAT,TI_status(%r11)
14564 /* clear IF, that popfq doesn't enable interrupts early */
14565 - andl $~0x200,EFLAGS-R11(%rsp)
14566 - movl RIP-R11(%rsp),%edx /* User %eip */
14567 + andl $~X86_EFLAGS_IF,EFLAGS(%rsp)
14568 + movl RIP(%rsp),%edx /* User %eip */
14569 CFI_REGISTER rip,rdx
14570 RESTORE_ARGS 0,24,0,0,0,0
14571 xorq %r8,%r8
14572 @@ -193,6 +243,9 @@ sysexit_from_sys_call:
14573 movl %eax,%esi /* 2nd arg: syscall number */
14574 movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */
14575 call __audit_syscall_entry
14576 +
14577 + pax_erase_kstack
14578 +
14579 movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
14580 cmpq $(IA32_NR_syscalls-1),%rax
14581 ja ia32_badsys
14582 @@ -204,7 +257,7 @@ sysexit_from_sys_call:
14583 .endm
14584
14585 .macro auditsys_exit exit
14586 - testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14587 + testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14588 jnz ia32_ret_from_sys_call
14589 TRACE_IRQS_ON
14590 ENABLE_INTERRUPTS(CLBR_NONE)
14591 @@ -215,11 +268,12 @@ sysexit_from_sys_call:
14592 1: setbe %al /* 1 if error, 0 if not */
14593 movzbl %al,%edi /* zero-extend that into %edi */
14594 call __audit_syscall_exit
14595 + GET_THREAD_INFO(%r11)
14596 movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
14597 movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
14598 DISABLE_INTERRUPTS(CLBR_NONE)
14599 TRACE_IRQS_OFF
14600 - testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14601 + testl %edi,TI_flags(%r11)
14602 jz \exit
14603 CLEAR_RREGS -ARGOFFSET
14604 jmp int_with_check
14605 @@ -237,7 +291,7 @@ sysexit_audit:
14606
14607 sysenter_tracesys:
14608 #ifdef CONFIG_AUDITSYSCALL
14609 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14610 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14611 jz sysenter_auditsys
14612 #endif
14613 SAVE_REST
14614 @@ -249,6 +303,9 @@ sysenter_tracesys:
14615 RESTORE_REST
14616 cmpq $(IA32_NR_syscalls-1),%rax
14617 ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
14618 +
14619 + pax_erase_kstack
14620 +
14621 jmp sysenter_do_call
14622 CFI_ENDPROC
14623 ENDPROC(ia32_sysenter_target)
14624 @@ -276,19 +333,25 @@ ENDPROC(ia32_sysenter_target)
14625 ENTRY(ia32_cstar_target)
14626 CFI_STARTPROC32 simple
14627 CFI_SIGNAL_FRAME
14628 - CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
14629 + CFI_DEF_CFA rsp,0
14630 CFI_REGISTER rip,rcx
14631 /*CFI_REGISTER rflags,r11*/
14632 SWAPGS_UNSAFE_STACK
14633 movl %esp,%r8d
14634 CFI_REGISTER rsp,r8
14635 movq PER_CPU_VAR(kernel_stack),%rsp
14636 + SAVE_ARGS 8*6,0,0
14637 + pax_enter_kernel_user
14638 +
14639 +#ifdef CONFIG_PAX_RANDKSTACK
14640 + pax_erase_kstack
14641 +#endif
14642 +
14643 /*
14644 * No need to follow this irqs on/off section: the syscall
14645 * disabled irqs and here we enable it straight after entry:
14646 */
14647 ENABLE_INTERRUPTS(CLBR_NONE)
14648 - SAVE_ARGS 8,0,0
14649 movl %eax,%eax /* zero extension */
14650 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
14651 movq %rcx,RIP-ARGOFFSET(%rsp)
14652 @@ -304,12 +367,25 @@ ENTRY(ia32_cstar_target)
14653 /* no need to do an access_ok check here because r8 has been
14654 32bit zero extended */
14655 /* hardware stack frame is complete now */
14656 +
14657 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14658 + ASM_PAX_OPEN_USERLAND
14659 + movq pax_user_shadow_base,%r8
14660 + addq RSP-ARGOFFSET(%rsp),%r8
14661 +#endif
14662 +
14663 ASM_STAC
14664 1: movl (%r8),%r9d
14665 _ASM_EXTABLE(1b,ia32_badarg)
14666 ASM_CLAC
14667 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14668 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14669 +
14670 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14671 + ASM_PAX_CLOSE_USERLAND
14672 +#endif
14673 +
14674 + GET_THREAD_INFO(%r11)
14675 + orl $TS_COMPAT,TI_status(%r11)
14676 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14677 CFI_REMEMBER_STATE
14678 jnz cstar_tracesys
14679 cmpq $IA32_NR_syscalls-1,%rax
14680 @@ -319,13 +395,16 @@ cstar_do_call:
14681 cstar_dispatch:
14682 call *ia32_sys_call_table(,%rax,8)
14683 movq %rax,RAX-ARGOFFSET(%rsp)
14684 + GET_THREAD_INFO(%r11)
14685 DISABLE_INTERRUPTS(CLBR_NONE)
14686 TRACE_IRQS_OFF
14687 - testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14688 + testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14689 jnz sysretl_audit
14690 sysretl_from_sys_call:
14691 - andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14692 - RESTORE_ARGS 0,-ARG_SKIP,0,0,0
14693 + pax_exit_kernel_user
14694 + pax_erase_kstack
14695 + andl $~TS_COMPAT,TI_status(%r11)
14696 + RESTORE_ARGS 0,-ORIG_RAX,0,0,0
14697 movl RIP-ARGOFFSET(%rsp),%ecx
14698 CFI_REGISTER rip,rcx
14699 movl EFLAGS-ARGOFFSET(%rsp),%r11d
14700 @@ -352,7 +431,7 @@ sysretl_audit:
14701
14702 cstar_tracesys:
14703 #ifdef CONFIG_AUDITSYSCALL
14704 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14705 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14706 jz cstar_auditsys
14707 #endif
14708 xchgl %r9d,%ebp
14709 @@ -366,11 +445,19 @@ cstar_tracesys:
14710 xchgl %ebp,%r9d
14711 cmpq $(IA32_NR_syscalls-1),%rax
14712 ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
14713 +
14714 + pax_erase_kstack
14715 +
14716 jmp cstar_do_call
14717 END(ia32_cstar_target)
14718
14719 ia32_badarg:
14720 ASM_CLAC
14721 +
14722 +#ifdef CONFIG_PAX_MEMORY_UDEREF
14723 + ASM_PAX_CLOSE_USERLAND
14724 +#endif
14725 +
14726 movq $-EFAULT,%rax
14727 jmp ia32_sysret
14728 CFI_ENDPROC
14729 @@ -407,19 +494,26 @@ ENTRY(ia32_syscall)
14730 CFI_REL_OFFSET rip,RIP-RIP
14731 PARAVIRT_ADJUST_EXCEPTION_FRAME
14732 SWAPGS
14733 - /*
14734 - * No need to follow this irqs on/off section: the syscall
14735 - * disabled irqs and here we enable it straight after entry:
14736 - */
14737 - ENABLE_INTERRUPTS(CLBR_NONE)
14738 movl %eax,%eax
14739 pushq_cfi %rax
14740 cld
14741 /* note the registers are not zero extended to the sf.
14742 this could be a problem. */
14743 SAVE_ARGS 0,1,0
14744 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14745 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14746 + pax_enter_kernel_user
14747 +
14748 +#ifdef CONFIG_PAX_RANDKSTACK
14749 + pax_erase_kstack
14750 +#endif
14751 +
14752 + /*
14753 + * No need to follow this irqs on/off section: the syscall
14754 + * disabled irqs and here we enable it straight after entry:
14755 + */
14756 + ENABLE_INTERRUPTS(CLBR_NONE)
14757 + GET_THREAD_INFO(%r11)
14758 + orl $TS_COMPAT,TI_status(%r11)
14759 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14760 jnz ia32_tracesys
14761 cmpq $(IA32_NR_syscalls-1),%rax
14762 ja ia32_badsys
14763 @@ -442,6 +536,9 @@ ia32_tracesys:
14764 RESTORE_REST
14765 cmpq $(IA32_NR_syscalls-1),%rax
14766 ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
14767 +
14768 + pax_erase_kstack
14769 +
14770 jmp ia32_do_call
14771 END(ia32_syscall)
14772
14773 diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
14774 index 8e0ceec..af13504 100644
14775 --- a/arch/x86/ia32/sys_ia32.c
14776 +++ b/arch/x86/ia32/sys_ia32.c
14777 @@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
14778 */
14779 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
14780 {
14781 - typeof(ubuf->st_uid) uid = 0;
14782 - typeof(ubuf->st_gid) gid = 0;
14783 + typeof(((struct stat64 *)0)->st_uid) uid = 0;
14784 + typeof(((struct stat64 *)0)->st_gid) gid = 0;
14785 SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
14786 SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
14787 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
14788 diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
14789 index 372231c..51b537d 100644
14790 --- a/arch/x86/include/asm/alternative-asm.h
14791 +++ b/arch/x86/include/asm/alternative-asm.h
14792 @@ -18,6 +18,45 @@
14793 .endm
14794 #endif
14795
14796 +#ifdef KERNEXEC_PLUGIN
14797 + .macro pax_force_retaddr_bts rip=0
14798 + btsq $63,\rip(%rsp)
14799 + .endm
14800 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
14801 + .macro pax_force_retaddr rip=0, reload=0
14802 + btsq $63,\rip(%rsp)
14803 + .endm
14804 + .macro pax_force_fptr ptr
14805 + btsq $63,\ptr
14806 + .endm
14807 + .macro pax_set_fptr_mask
14808 + .endm
14809 +#endif
14810 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
14811 + .macro pax_force_retaddr rip=0, reload=0
14812 + .if \reload
14813 + pax_set_fptr_mask
14814 + .endif
14815 + orq %r12,\rip(%rsp)
14816 + .endm
14817 + .macro pax_force_fptr ptr
14818 + orq %r12,\ptr
14819 + .endm
14820 + .macro pax_set_fptr_mask
14821 + movabs $0x8000000000000000,%r12
14822 + .endm
14823 +#endif
14824 +#else
14825 + .macro pax_force_retaddr rip=0, reload=0
14826 + .endm
14827 + .macro pax_force_fptr ptr
14828 + .endm
14829 + .macro pax_force_retaddr_bts rip=0
14830 + .endm
14831 + .macro pax_set_fptr_mask
14832 + .endm
14833 +#endif
14834 +
14835 .macro altinstruction_entry orig alt feature orig_len alt_len
14836 .long \orig - .
14837 .long \alt - .
14838 diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
14839 index 0a3f9c9..c9d081d 100644
14840 --- a/arch/x86/include/asm/alternative.h
14841 +++ b/arch/x86/include/asm/alternative.h
14842 @@ -106,7 +106,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
14843 ".pushsection .discard,\"aw\",@progbits\n" \
14844 DISCARD_ENTRY(1) \
14845 ".popsection\n" \
14846 - ".pushsection .altinstr_replacement, \"ax\"\n" \
14847 + ".pushsection .altinstr_replacement, \"a\"\n" \
14848 ALTINSTR_REPLACEMENT(newinstr, feature, 1) \
14849 ".popsection"
14850
14851 @@ -120,7 +120,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
14852 DISCARD_ENTRY(1) \
14853 DISCARD_ENTRY(2) \
14854 ".popsection\n" \
14855 - ".pushsection .altinstr_replacement, \"ax\"\n" \
14856 + ".pushsection .altinstr_replacement, \"a\"\n" \
14857 ALTINSTR_REPLACEMENT(newinstr1, feature1, 1) \
14858 ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \
14859 ".popsection"
14860 diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
14861 index 19b0eba..12254cd 100644
14862 --- a/arch/x86/include/asm/apic.h
14863 +++ b/arch/x86/include/asm/apic.h
14864 @@ -45,7 +45,7 @@ static inline void generic_apic_probe(void)
14865
14866 #ifdef CONFIG_X86_LOCAL_APIC
14867
14868 -extern unsigned int apic_verbosity;
14869 +extern int apic_verbosity;
14870 extern int local_apic_timer_c2_ok;
14871
14872 extern int disable_apic;
14873 diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
14874 index 20370c6..a2eb9b0 100644
14875 --- a/arch/x86/include/asm/apm.h
14876 +++ b/arch/x86/include/asm/apm.h
14877 @@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
14878 __asm__ __volatile__(APM_DO_ZERO_SEGS
14879 "pushl %%edi\n\t"
14880 "pushl %%ebp\n\t"
14881 - "lcall *%%cs:apm_bios_entry\n\t"
14882 + "lcall *%%ss:apm_bios_entry\n\t"
14883 "setc %%al\n\t"
14884 "popl %%ebp\n\t"
14885 "popl %%edi\n\t"
14886 @@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
14887 __asm__ __volatile__(APM_DO_ZERO_SEGS
14888 "pushl %%edi\n\t"
14889 "pushl %%ebp\n\t"
14890 - "lcall *%%cs:apm_bios_entry\n\t"
14891 + "lcall *%%ss:apm_bios_entry\n\t"
14892 "setc %%bl\n\t"
14893 "popl %%ebp\n\t"
14894 "popl %%edi\n\t"
14895 diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
14896 index b17f4f4..9620151 100644
14897 --- a/arch/x86/include/asm/atomic.h
14898 +++ b/arch/x86/include/asm/atomic.h
14899 @@ -23,7 +23,18 @@
14900 */
14901 static inline int atomic_read(const atomic_t *v)
14902 {
14903 - return (*(volatile int *)&(v)->counter);
14904 + return (*(volatile const int *)&(v)->counter);
14905 +}
14906 +
14907 +/**
14908 + * atomic_read_unchecked - read atomic variable
14909 + * @v: pointer of type atomic_unchecked_t
14910 + *
14911 + * Atomically reads the value of @v.
14912 + */
14913 +static inline int __intentional_overflow(-1) atomic_read_unchecked(const atomic_unchecked_t *v)
14914 +{
14915 + return (*(volatile const int *)&(v)->counter);
14916 }
14917
14918 /**
14919 @@ -39,6 +50,18 @@ static inline void atomic_set(atomic_t *v, int i)
14920 }
14921
14922 /**
14923 + * atomic_set_unchecked - set atomic variable
14924 + * @v: pointer of type atomic_unchecked_t
14925 + * @i: required value
14926 + *
14927 + * Atomically sets the value of @v to @i.
14928 + */
14929 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
14930 +{
14931 + v->counter = i;
14932 +}
14933 +
14934 +/**
14935 * atomic_add - add integer to atomic variable
14936 * @i: integer value to add
14937 * @v: pointer of type atomic_t
14938 @@ -47,7 +70,29 @@ static inline void atomic_set(atomic_t *v, int i)
14939 */
14940 static inline void atomic_add(int i, atomic_t *v)
14941 {
14942 - asm volatile(LOCK_PREFIX "addl %1,%0"
14943 + asm volatile(LOCK_PREFIX "addl %1,%0\n"
14944 +
14945 +#ifdef CONFIG_PAX_REFCOUNT
14946 + "jno 0f\n"
14947 + LOCK_PREFIX "subl %1,%0\n"
14948 + "int $4\n0:\n"
14949 + _ASM_EXTABLE(0b, 0b)
14950 +#endif
14951 +
14952 + : "+m" (v->counter)
14953 + : "ir" (i));
14954 +}
14955 +
14956 +/**
14957 + * atomic_add_unchecked - add integer to atomic variable
14958 + * @i: integer value to add
14959 + * @v: pointer of type atomic_unchecked_t
14960 + *
14961 + * Atomically adds @i to @v.
14962 + */
14963 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
14964 +{
14965 + asm volatile(LOCK_PREFIX "addl %1,%0\n"
14966 : "+m" (v->counter)
14967 : "ir" (i));
14968 }
14969 @@ -61,7 +106,29 @@ static inline void atomic_add(int i, atomic_t *v)
14970 */
14971 static inline void atomic_sub(int i, atomic_t *v)
14972 {
14973 - asm volatile(LOCK_PREFIX "subl %1,%0"
14974 + asm volatile(LOCK_PREFIX "subl %1,%0\n"
14975 +
14976 +#ifdef CONFIG_PAX_REFCOUNT
14977 + "jno 0f\n"
14978 + LOCK_PREFIX "addl %1,%0\n"
14979 + "int $4\n0:\n"
14980 + _ASM_EXTABLE(0b, 0b)
14981 +#endif
14982 +
14983 + : "+m" (v->counter)
14984 + : "ir" (i));
14985 +}
14986 +
14987 +/**
14988 + * atomic_sub_unchecked - subtract integer from atomic variable
14989 + * @i: integer value to subtract
14990 + * @v: pointer of type atomic_unchecked_t
14991 + *
14992 + * Atomically subtracts @i from @v.
14993 + */
14994 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
14995 +{
14996 + asm volatile(LOCK_PREFIX "subl %1,%0\n"
14997 : "+m" (v->counter)
14998 : "ir" (i));
14999 }
15000 @@ -77,7 +144,7 @@ static inline void atomic_sub(int i, atomic_t *v)
15001 */
15002 static inline int atomic_sub_and_test(int i, atomic_t *v)
15003 {
15004 - GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
15005 + GEN_BINARY_RMWcc(LOCK_PREFIX "subl", LOCK_PREFIX "addl", v->counter, "er", i, "%0", "e");
15006 }
15007
15008 /**
15009 @@ -88,7 +155,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
15010 */
15011 static inline void atomic_inc(atomic_t *v)
15012 {
15013 - asm volatile(LOCK_PREFIX "incl %0"
15014 + asm volatile(LOCK_PREFIX "incl %0\n"
15015 +
15016 +#ifdef CONFIG_PAX_REFCOUNT
15017 + "jno 0f\n"
15018 + LOCK_PREFIX "decl %0\n"
15019 + "int $4\n0:\n"
15020 + _ASM_EXTABLE(0b, 0b)
15021 +#endif
15022 +
15023 + : "+m" (v->counter));
15024 +}
15025 +
15026 +/**
15027 + * atomic_inc_unchecked - increment atomic variable
15028 + * @v: pointer of type atomic_unchecked_t
15029 + *
15030 + * Atomically increments @v by 1.
15031 + */
15032 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
15033 +{
15034 + asm volatile(LOCK_PREFIX "incl %0\n"
15035 : "+m" (v->counter));
15036 }
15037
15038 @@ -100,7 +187,27 @@ static inline void atomic_inc(atomic_t *v)
15039 */
15040 static inline void atomic_dec(atomic_t *v)
15041 {
15042 - asm volatile(LOCK_PREFIX "decl %0"
15043 + asm volatile(LOCK_PREFIX "decl %0\n"
15044 +
15045 +#ifdef CONFIG_PAX_REFCOUNT
15046 + "jno 0f\n"
15047 + LOCK_PREFIX "incl %0\n"
15048 + "int $4\n0:\n"
15049 + _ASM_EXTABLE(0b, 0b)
15050 +#endif
15051 +
15052 + : "+m" (v->counter));
15053 +}
15054 +
15055 +/**
15056 + * atomic_dec_unchecked - decrement atomic variable
15057 + * @v: pointer of type atomic_unchecked_t
15058 + *
15059 + * Atomically decrements @v by 1.
15060 + */
15061 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
15062 +{
15063 + asm volatile(LOCK_PREFIX "decl %0\n"
15064 : "+m" (v->counter));
15065 }
15066
15067 @@ -114,7 +221,7 @@ static inline void atomic_dec(atomic_t *v)
15068 */
15069 static inline int atomic_dec_and_test(atomic_t *v)
15070 {
15071 - GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
15072 + GEN_UNARY_RMWcc(LOCK_PREFIX "decl", LOCK_PREFIX "incl", v->counter, "%0", "e");
15073 }
15074
15075 /**
15076 @@ -127,7 +234,20 @@ static inline int atomic_dec_and_test(atomic_t *v)
15077 */
15078 static inline int atomic_inc_and_test(atomic_t *v)
15079 {
15080 - GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
15081 + GEN_UNARY_RMWcc(LOCK_PREFIX "incl", LOCK_PREFIX "decl", v->counter, "%0", "e");
15082 +}
15083 +
15084 +/**
15085 + * atomic_inc_and_test_unchecked - increment and test
15086 + * @v: pointer of type atomic_unchecked_t
15087 + *
15088 + * Atomically increments @v by 1
15089 + * and returns true if the result is zero, or false for all
15090 + * other cases.
15091 + */
15092 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
15093 +{
15094 + GEN_UNARY_RMWcc_unchecked(LOCK_PREFIX "incl", v->counter, "%0", "e");
15095 }
15096
15097 /**
15098 @@ -141,7 +261,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
15099 */
15100 static inline int atomic_add_negative(int i, atomic_t *v)
15101 {
15102 - GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
15103 + GEN_BINARY_RMWcc(LOCK_PREFIX "addl", LOCK_PREFIX "subl", v->counter, "er", i, "%0", "s");
15104 }
15105
15106 /**
15107 @@ -153,6 +273,18 @@ static inline int atomic_add_negative(int i, atomic_t *v)
15108 */
15109 static inline int atomic_add_return(int i, atomic_t *v)
15110 {
15111 + return i + xadd_check_overflow(&v->counter, i);
15112 +}
15113 +
15114 +/**
15115 + * atomic_add_return_unchecked - add integer and return
15116 + * @i: integer value to add
15117 + * @v: pointer of type atomic_unchecked_t
15118 + *
15119 + * Atomically adds @i to @v and returns @i + @v
15120 + */
15121 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
15122 +{
15123 return i + xadd(&v->counter, i);
15124 }
15125
15126 @@ -169,9 +301,18 @@ static inline int atomic_sub_return(int i, atomic_t *v)
15127 }
15128
15129 #define atomic_inc_return(v) (atomic_add_return(1, v))
15130 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
15131 +{
15132 + return atomic_add_return_unchecked(1, v);
15133 +}
15134 #define atomic_dec_return(v) (atomic_sub_return(1, v))
15135
15136 -static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
15137 +static inline int __intentional_overflow(-1) atomic_cmpxchg(atomic_t *v, int old, int new)
15138 +{
15139 + return cmpxchg(&v->counter, old, new);
15140 +}
15141 +
15142 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
15143 {
15144 return cmpxchg(&v->counter, old, new);
15145 }
15146 @@ -181,6 +322,11 @@ static inline int atomic_xchg(atomic_t *v, int new)
15147 return xchg(&v->counter, new);
15148 }
15149
15150 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
15151 +{
15152 + return xchg(&v->counter, new);
15153 +}
15154 +
15155 /**
15156 * __atomic_add_unless - add unless the number is already a given value
15157 * @v: pointer of type atomic_t
15158 @@ -190,14 +336,27 @@ static inline int atomic_xchg(atomic_t *v, int new)
15159 * Atomically adds @a to @v, so long as @v was not already @u.
15160 * Returns the old value of @v.
15161 */
15162 -static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15163 +static inline int __intentional_overflow(-1) __atomic_add_unless(atomic_t *v, int a, int u)
15164 {
15165 - int c, old;
15166 + int c, old, new;
15167 c = atomic_read(v);
15168 for (;;) {
15169 - if (unlikely(c == (u)))
15170 + if (unlikely(c == u))
15171 break;
15172 - old = atomic_cmpxchg((v), c, c + (a));
15173 +
15174 + asm volatile("addl %2,%0\n"
15175 +
15176 +#ifdef CONFIG_PAX_REFCOUNT
15177 + "jno 0f\n"
15178 + "subl %2,%0\n"
15179 + "int $4\n0:\n"
15180 + _ASM_EXTABLE(0b, 0b)
15181 +#endif
15182 +
15183 + : "=r" (new)
15184 + : "0" (c), "ir" (a));
15185 +
15186 + old = atomic_cmpxchg(v, c, new);
15187 if (likely(old == c))
15188 break;
15189 c = old;
15190 @@ -206,6 +365,49 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15191 }
15192
15193 /**
15194 + * atomic_inc_not_zero_hint - increment if not null
15195 + * @v: pointer of type atomic_t
15196 + * @hint: probable value of the atomic before the increment
15197 + *
15198 + * This version of atomic_inc_not_zero() gives a hint of probable
15199 + * value of the atomic. This helps processor to not read the memory
15200 + * before doing the atomic read/modify/write cycle, lowering
15201 + * number of bus transactions on some arches.
15202 + *
15203 + * Returns: 0 if increment was not done, 1 otherwise.
15204 + */
15205 +#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
15206 +static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
15207 +{
15208 + int val, c = hint, new;
15209 +
15210 + /* sanity test, should be removed by compiler if hint is a constant */
15211 + if (!hint)
15212 + return __atomic_add_unless(v, 1, 0);
15213 +
15214 + do {
15215 + asm volatile("incl %0\n"
15216 +
15217 +#ifdef CONFIG_PAX_REFCOUNT
15218 + "jno 0f\n"
15219 + "decl %0\n"
15220 + "int $4\n0:\n"
15221 + _ASM_EXTABLE(0b, 0b)
15222 +#endif
15223 +
15224 + : "=r" (new)
15225 + : "0" (c));
15226 +
15227 + val = atomic_cmpxchg(v, c, new);
15228 + if (val == c)
15229 + return 1;
15230 + c = val;
15231 + } while (c);
15232 +
15233 + return 0;
15234 +}
15235 +
15236 +/**
15237 * atomic_inc_short - increment of a short integer
15238 * @v: pointer to type int
15239 *
15240 @@ -234,14 +436,37 @@ static inline void atomic_or_long(unsigned long *v1, unsigned long v2)
15241 #endif
15242
15243 /* These are x86-specific, used by some header files */
15244 -#define atomic_clear_mask(mask, addr) \
15245 - asm volatile(LOCK_PREFIX "andl %0,%1" \
15246 - : : "r" (~(mask)), "m" (*(addr)) : "memory")
15247 +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
15248 +{
15249 + asm volatile(LOCK_PREFIX "andl %1,%0"
15250 + : "+m" (v->counter)
15251 + : "r" (~(mask))
15252 + : "memory");
15253 +}
15254
15255 -#define atomic_set_mask(mask, addr) \
15256 - asm volatile(LOCK_PREFIX "orl %0,%1" \
15257 - : : "r" ((unsigned)(mask)), "m" (*(addr)) \
15258 - : "memory")
15259 +static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15260 +{
15261 + asm volatile(LOCK_PREFIX "andl %1,%0"
15262 + : "+m" (v->counter)
15263 + : "r" (~(mask))
15264 + : "memory");
15265 +}
15266 +
15267 +static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
15268 +{
15269 + asm volatile(LOCK_PREFIX "orl %1,%0"
15270 + : "+m" (v->counter)
15271 + : "r" (mask)
15272 + : "memory");
15273 +}
15274 +
15275 +static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15276 +{
15277 + asm volatile(LOCK_PREFIX "orl %1,%0"
15278 + : "+m" (v->counter)
15279 + : "r" (mask)
15280 + : "memory");
15281 +}
15282
15283 /* Atomic operations are already serializing on x86 */
15284 #define smp_mb__before_atomic_dec() barrier()
15285 diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
15286 index b154de7..bf18a5a 100644
15287 --- a/arch/x86/include/asm/atomic64_32.h
15288 +++ b/arch/x86/include/asm/atomic64_32.h
15289 @@ -12,6 +12,14 @@ typedef struct {
15290 u64 __aligned(8) counter;
15291 } atomic64_t;
15292
15293 +#ifdef CONFIG_PAX_REFCOUNT
15294 +typedef struct {
15295 + u64 __aligned(8) counter;
15296 +} atomic64_unchecked_t;
15297 +#else
15298 +typedef atomic64_t atomic64_unchecked_t;
15299 +#endif
15300 +
15301 #define ATOMIC64_INIT(val) { (val) }
15302
15303 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
15304 @@ -37,21 +45,31 @@ typedef struct {
15305 ATOMIC64_DECL_ONE(sym##_386)
15306
15307 ATOMIC64_DECL_ONE(add_386);
15308 +ATOMIC64_DECL_ONE(add_unchecked_386);
15309 ATOMIC64_DECL_ONE(sub_386);
15310 +ATOMIC64_DECL_ONE(sub_unchecked_386);
15311 ATOMIC64_DECL_ONE(inc_386);
15312 +ATOMIC64_DECL_ONE(inc_unchecked_386);
15313 ATOMIC64_DECL_ONE(dec_386);
15314 +ATOMIC64_DECL_ONE(dec_unchecked_386);
15315 #endif
15316
15317 #define alternative_atomic64(f, out, in...) \
15318 __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
15319
15320 ATOMIC64_DECL(read);
15321 +ATOMIC64_DECL(read_unchecked);
15322 ATOMIC64_DECL(set);
15323 +ATOMIC64_DECL(set_unchecked);
15324 ATOMIC64_DECL(xchg);
15325 ATOMIC64_DECL(add_return);
15326 +ATOMIC64_DECL(add_return_unchecked);
15327 ATOMIC64_DECL(sub_return);
15328 +ATOMIC64_DECL(sub_return_unchecked);
15329 ATOMIC64_DECL(inc_return);
15330 +ATOMIC64_DECL(inc_return_unchecked);
15331 ATOMIC64_DECL(dec_return);
15332 +ATOMIC64_DECL(dec_return_unchecked);
15333 ATOMIC64_DECL(dec_if_positive);
15334 ATOMIC64_DECL(inc_not_zero);
15335 ATOMIC64_DECL(add_unless);
15336 @@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
15337 }
15338
15339 /**
15340 + * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
15341 + * @p: pointer to type atomic64_unchecked_t
15342 + * @o: expected value
15343 + * @n: new value
15344 + *
15345 + * Atomically sets @v to @n if it was equal to @o and returns
15346 + * the old value.
15347 + */
15348 +
15349 +static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
15350 +{
15351 + return cmpxchg64(&v->counter, o, n);
15352 +}
15353 +
15354 +/**
15355 * atomic64_xchg - xchg atomic64 variable
15356 * @v: pointer to type atomic64_t
15357 * @n: value to assign
15358 @@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
15359 }
15360
15361 /**
15362 + * atomic64_set_unchecked - set atomic64 variable
15363 + * @v: pointer to type atomic64_unchecked_t
15364 + * @n: value to assign
15365 + *
15366 + * Atomically sets the value of @v to @n.
15367 + */
15368 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
15369 +{
15370 + unsigned high = (unsigned)(i >> 32);
15371 + unsigned low = (unsigned)i;
15372 + alternative_atomic64(set, /* no output */,
15373 + "S" (v), "b" (low), "c" (high)
15374 + : "eax", "edx", "memory");
15375 +}
15376 +
15377 +/**
15378 * atomic64_read - read atomic64 variable
15379 * @v: pointer to type atomic64_t
15380 *
15381 @@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
15382 }
15383
15384 /**
15385 + * atomic64_read_unchecked - read atomic64 variable
15386 + * @v: pointer to type atomic64_unchecked_t
15387 + *
15388 + * Atomically reads the value of @v and returns it.
15389 + */
15390 +static inline long long __intentional_overflow(-1) atomic64_read_unchecked(atomic64_unchecked_t *v)
15391 +{
15392 + long long r;
15393 + alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
15394 + return r;
15395 + }
15396 +
15397 +/**
15398 * atomic64_add_return - add and return
15399 * @i: integer value to add
15400 * @v: pointer to type atomic64_t
15401 @@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
15402 return i;
15403 }
15404
15405 +/**
15406 + * atomic64_add_return_unchecked - add and return
15407 + * @i: integer value to add
15408 + * @v: pointer to type atomic64_unchecked_t
15409 + *
15410 + * Atomically adds @i to @v and returns @i + *@v
15411 + */
15412 +static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
15413 +{
15414 + alternative_atomic64(add_return_unchecked,
15415 + ASM_OUTPUT2("+A" (i), "+c" (v)),
15416 + ASM_NO_INPUT_CLOBBER("memory"));
15417 + return i;
15418 +}
15419 +
15420 /*
15421 * Other variants with different arithmetic operators:
15422 */
15423 @@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
15424 return a;
15425 }
15426
15427 +static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15428 +{
15429 + long long a;
15430 + alternative_atomic64(inc_return_unchecked, "=&A" (a),
15431 + "S" (v) : "memory", "ecx");
15432 + return a;
15433 +}
15434 +
15435 static inline long long atomic64_dec_return(atomic64_t *v)
15436 {
15437 long long a;
15438 @@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
15439 }
15440
15441 /**
15442 + * atomic64_add_unchecked - add integer to atomic64 variable
15443 + * @i: integer value to add
15444 + * @v: pointer to type atomic64_unchecked_t
15445 + *
15446 + * Atomically adds @i to @v.
15447 + */
15448 +static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
15449 +{
15450 + __alternative_atomic64(add_unchecked, add_return_unchecked,
15451 + ASM_OUTPUT2("+A" (i), "+c" (v)),
15452 + ASM_NO_INPUT_CLOBBER("memory"));
15453 + return i;
15454 +}
15455 +
15456 +/**
15457 * atomic64_sub - subtract the atomic64 variable
15458 * @i: integer value to subtract
15459 * @v: pointer to type atomic64_t
15460 diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
15461 index 46e9052..ae45136 100644
15462 --- a/arch/x86/include/asm/atomic64_64.h
15463 +++ b/arch/x86/include/asm/atomic64_64.h
15464 @@ -18,7 +18,19 @@
15465 */
15466 static inline long atomic64_read(const atomic64_t *v)
15467 {
15468 - return (*(volatile long *)&(v)->counter);
15469 + return (*(volatile const long *)&(v)->counter);
15470 +}
15471 +
15472 +/**
15473 + * atomic64_read_unchecked - read atomic64 variable
15474 + * @v: pointer of type atomic64_unchecked_t
15475 + *
15476 + * Atomically reads the value of @v.
15477 + * Doesn't imply a read memory barrier.
15478 + */
15479 +static inline long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
15480 +{
15481 + return (*(volatile const long *)&(v)->counter);
15482 }
15483
15484 /**
15485 @@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
15486 }
15487
15488 /**
15489 + * atomic64_set_unchecked - set atomic64 variable
15490 + * @v: pointer to type atomic64_unchecked_t
15491 + * @i: required value
15492 + *
15493 + * Atomically sets the value of @v to @i.
15494 + */
15495 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
15496 +{
15497 + v->counter = i;
15498 +}
15499 +
15500 +/**
15501 * atomic64_add - add integer to atomic64 variable
15502 * @i: integer value to add
15503 * @v: pointer to type atomic64_t
15504 @@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
15505 */
15506 static inline void atomic64_add(long i, atomic64_t *v)
15507 {
15508 + asm volatile(LOCK_PREFIX "addq %1,%0\n"
15509 +
15510 +#ifdef CONFIG_PAX_REFCOUNT
15511 + "jno 0f\n"
15512 + LOCK_PREFIX "subq %1,%0\n"
15513 + "int $4\n0:\n"
15514 + _ASM_EXTABLE(0b, 0b)
15515 +#endif
15516 +
15517 + : "=m" (v->counter)
15518 + : "er" (i), "m" (v->counter));
15519 +}
15520 +
15521 +/**
15522 + * atomic64_add_unchecked - add integer to atomic64 variable
15523 + * @i: integer value to add
15524 + * @v: pointer to type atomic64_unchecked_t
15525 + *
15526 + * Atomically adds @i to @v.
15527 + */
15528 +static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
15529 +{
15530 asm volatile(LOCK_PREFIX "addq %1,%0"
15531 : "=m" (v->counter)
15532 : "er" (i), "m" (v->counter));
15533 @@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
15534 */
15535 static inline void atomic64_sub(long i, atomic64_t *v)
15536 {
15537 - asm volatile(LOCK_PREFIX "subq %1,%0"
15538 + asm volatile(LOCK_PREFIX "subq %1,%0\n"
15539 +
15540 +#ifdef CONFIG_PAX_REFCOUNT
15541 + "jno 0f\n"
15542 + LOCK_PREFIX "addq %1,%0\n"
15543 + "int $4\n0:\n"
15544 + _ASM_EXTABLE(0b, 0b)
15545 +#endif
15546 +
15547 + : "=m" (v->counter)
15548 + : "er" (i), "m" (v->counter));
15549 +}
15550 +
15551 +/**
15552 + * atomic64_sub_unchecked - subtract the atomic64 variable
15553 + * @i: integer value to subtract
15554 + * @v: pointer to type atomic64_unchecked_t
15555 + *
15556 + * Atomically subtracts @i from @v.
15557 + */
15558 +static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
15559 +{
15560 + asm volatile(LOCK_PREFIX "subq %1,%0\n"
15561 : "=m" (v->counter)
15562 : "er" (i), "m" (v->counter));
15563 }
15564 @@ -72,7 +140,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
15565 */
15566 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15567 {
15568 - GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
15569 + GEN_BINARY_RMWcc(LOCK_PREFIX "subq", LOCK_PREFIX "addq", v->counter, "er", i, "%0", "e");
15570 }
15571
15572 /**
15573 @@ -83,6 +151,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15574 */
15575 static inline void atomic64_inc(atomic64_t *v)
15576 {
15577 + asm volatile(LOCK_PREFIX "incq %0\n"
15578 +
15579 +#ifdef CONFIG_PAX_REFCOUNT
15580 + "jno 0f\n"
15581 + LOCK_PREFIX "decq %0\n"
15582 + "int $4\n0:\n"
15583 + _ASM_EXTABLE(0b, 0b)
15584 +#endif
15585 +
15586 + : "=m" (v->counter)
15587 + : "m" (v->counter));
15588 +}
15589 +
15590 +/**
15591 + * atomic64_inc_unchecked - increment atomic64 variable
15592 + * @v: pointer to type atomic64_unchecked_t
15593 + *
15594 + * Atomically increments @v by 1.
15595 + */
15596 +static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
15597 +{
15598 asm volatile(LOCK_PREFIX "incq %0"
15599 : "=m" (v->counter)
15600 : "m" (v->counter));
15601 @@ -96,7 +185,28 @@ static inline void atomic64_inc(atomic64_t *v)
15602 */
15603 static inline void atomic64_dec(atomic64_t *v)
15604 {
15605 - asm volatile(LOCK_PREFIX "decq %0"
15606 + asm volatile(LOCK_PREFIX "decq %0\n"
15607 +
15608 +#ifdef CONFIG_PAX_REFCOUNT
15609 + "jno 0f\n"
15610 + LOCK_PREFIX "incq %0\n"
15611 + "int $4\n0:\n"
15612 + _ASM_EXTABLE(0b, 0b)
15613 +#endif
15614 +
15615 + : "=m" (v->counter)
15616 + : "m" (v->counter));
15617 +}
15618 +
15619 +/**
15620 + * atomic64_dec_unchecked - decrement atomic64 variable
15621 + * @v: pointer to type atomic64_t
15622 + *
15623 + * Atomically decrements @v by 1.
15624 + */
15625 +static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
15626 +{
15627 + asm volatile(LOCK_PREFIX "decq %0\n"
15628 : "=m" (v->counter)
15629 : "m" (v->counter));
15630 }
15631 @@ -111,7 +221,7 @@ static inline void atomic64_dec(atomic64_t *v)
15632 */
15633 static inline int atomic64_dec_and_test(atomic64_t *v)
15634 {
15635 - GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
15636 + GEN_UNARY_RMWcc(LOCK_PREFIX "decq", LOCK_PREFIX "incq", v->counter, "%0", "e");
15637 }
15638
15639 /**
15640 @@ -124,7 +234,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
15641 */
15642 static inline int atomic64_inc_and_test(atomic64_t *v)
15643 {
15644 - GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
15645 + GEN_UNARY_RMWcc(LOCK_PREFIX "incq", LOCK_PREFIX "decq", v->counter, "%0", "e");
15646 }
15647
15648 /**
15649 @@ -138,7 +248,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
15650 */
15651 static inline int atomic64_add_negative(long i, atomic64_t *v)
15652 {
15653 - GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
15654 + GEN_BINARY_RMWcc(LOCK_PREFIX "addq", LOCK_PREFIX "subq", v->counter, "er", i, "%0", "s");
15655 }
15656
15657 /**
15658 @@ -150,6 +260,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
15659 */
15660 static inline long atomic64_add_return(long i, atomic64_t *v)
15661 {
15662 + return i + xadd_check_overflow(&v->counter, i);
15663 +}
15664 +
15665 +/**
15666 + * atomic64_add_return_unchecked - add and return
15667 + * @i: integer value to add
15668 + * @v: pointer to type atomic64_unchecked_t
15669 + *
15670 + * Atomically adds @i to @v and returns @i + @v
15671 + */
15672 +static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
15673 +{
15674 return i + xadd(&v->counter, i);
15675 }
15676
15677 @@ -159,6 +281,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
15678 }
15679
15680 #define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
15681 +static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15682 +{
15683 + return atomic64_add_return_unchecked(1, v);
15684 +}
15685 #define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
15686
15687 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15688 @@ -166,6 +292,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15689 return cmpxchg(&v->counter, old, new);
15690 }
15691
15692 +static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
15693 +{
15694 + return cmpxchg(&v->counter, old, new);
15695 +}
15696 +
15697 static inline long atomic64_xchg(atomic64_t *v, long new)
15698 {
15699 return xchg(&v->counter, new);
15700 @@ -182,17 +313,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
15701 */
15702 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
15703 {
15704 - long c, old;
15705 + long c, old, new;
15706 c = atomic64_read(v);
15707 for (;;) {
15708 - if (unlikely(c == (u)))
15709 + if (unlikely(c == u))
15710 break;
15711 - old = atomic64_cmpxchg((v), c, c + (a));
15712 +
15713 + asm volatile("add %2,%0\n"
15714 +
15715 +#ifdef CONFIG_PAX_REFCOUNT
15716 + "jno 0f\n"
15717 + "sub %2,%0\n"
15718 + "int $4\n0:\n"
15719 + _ASM_EXTABLE(0b, 0b)
15720 +#endif
15721 +
15722 + : "=r" (new)
15723 + : "0" (c), "ir" (a));
15724 +
15725 + old = atomic64_cmpxchg(v, c, new);
15726 if (likely(old == c))
15727 break;
15728 c = old;
15729 }
15730 - return c != (u);
15731 + return c != u;
15732 }
15733
15734 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
15735 diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
15736 index 69bbb48..32517fe 100644
15737 --- a/arch/x86/include/asm/barrier.h
15738 +++ b/arch/x86/include/asm/barrier.h
15739 @@ -107,7 +107,7 @@
15740 do { \
15741 compiletime_assert_atomic_type(*p); \
15742 smp_mb(); \
15743 - ACCESS_ONCE(*p) = (v); \
15744 + ACCESS_ONCE_RW(*p) = (v); \
15745 } while (0)
15746
15747 #define smp_load_acquire(p) \
15748 @@ -124,7 +124,7 @@ do { \
15749 do { \
15750 compiletime_assert_atomic_type(*p); \
15751 barrier(); \
15752 - ACCESS_ONCE(*p) = (v); \
15753 + ACCESS_ONCE_RW(*p) = (v); \
15754 } while (0)
15755
15756 #define smp_load_acquire(p) \
15757 diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
15758 index 9fc1af7..776d75a 100644
15759 --- a/arch/x86/include/asm/bitops.h
15760 +++ b/arch/x86/include/asm/bitops.h
15761 @@ -49,7 +49,7 @@
15762 * a mask operation on a byte.
15763 */
15764 #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr))
15765 -#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3))
15766 +#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
15767 #define CONST_MASK(nr) (1 << ((nr) & 7))
15768
15769 /**
15770 @@ -205,7 +205,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
15771 */
15772 static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
15773 {
15774 - GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
15775 + GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
15776 }
15777
15778 /**
15779 @@ -251,7 +251,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
15780 */
15781 static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
15782 {
15783 - GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
15784 + GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
15785 }
15786
15787 /**
15788 @@ -304,7 +304,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
15789 */
15790 static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
15791 {
15792 - GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
15793 + GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
15794 }
15795
15796 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
15797 @@ -345,7 +345,7 @@ static int test_bit(int nr, const volatile unsigned long *addr);
15798 *
15799 * Undefined if no bit exists, so code should check against 0 first.
15800 */
15801 -static inline unsigned long __ffs(unsigned long word)
15802 +static inline unsigned long __intentional_overflow(-1) __ffs(unsigned long word)
15803 {
15804 asm("rep; bsf %1,%0"
15805 : "=r" (word)
15806 @@ -359,7 +359,7 @@ static inline unsigned long __ffs(unsigned long word)
15807 *
15808 * Undefined if no zero exists, so code should check against ~0UL first.
15809 */
15810 -static inline unsigned long ffz(unsigned long word)
15811 +static inline unsigned long __intentional_overflow(-1) ffz(unsigned long word)
15812 {
15813 asm("rep; bsf %1,%0"
15814 : "=r" (word)
15815 @@ -373,7 +373,7 @@ static inline unsigned long ffz(unsigned long word)
15816 *
15817 * Undefined if no set bit exists, so code should check against 0 first.
15818 */
15819 -static inline unsigned long __fls(unsigned long word)
15820 +static inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
15821 {
15822 asm("bsr %1,%0"
15823 : "=r" (word)
15824 @@ -436,7 +436,7 @@ static inline int ffs(int x)
15825 * set bit if value is nonzero. The last (most significant) bit is
15826 * at position 32.
15827 */
15828 -static inline int fls(int x)
15829 +static inline int __intentional_overflow(-1) fls(int x)
15830 {
15831 int r;
15832
15833 @@ -478,7 +478,7 @@ static inline int fls(int x)
15834 * at position 64.
15835 */
15836 #ifdef CONFIG_X86_64
15837 -static __always_inline int fls64(__u64 x)
15838 +static __always_inline __intentional_overflow(-1) int fls64(__u64 x)
15839 {
15840 int bitpos = -1;
15841 /*
15842 diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
15843 index 4fa687a..60f2d39 100644
15844 --- a/arch/x86/include/asm/boot.h
15845 +++ b/arch/x86/include/asm/boot.h
15846 @@ -6,10 +6,15 @@
15847 #include <uapi/asm/boot.h>
15848
15849 /* Physical address where kernel should be loaded. */
15850 -#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
15851 +#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
15852 + (CONFIG_PHYSICAL_ALIGN - 1)) \
15853 & ~(CONFIG_PHYSICAL_ALIGN - 1))
15854
15855 +#ifndef __ASSEMBLY__
15856 +extern unsigned char __LOAD_PHYSICAL_ADDR[];
15857 +#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
15858 +#endif
15859 +
15860 /* Minimum kernel alignment, as a power of two */
15861 #ifdef CONFIG_X86_64
15862 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
15863 diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
15864 index 48f99f1..d78ebf9 100644
15865 --- a/arch/x86/include/asm/cache.h
15866 +++ b/arch/x86/include/asm/cache.h
15867 @@ -5,12 +5,13 @@
15868
15869 /* L1 cache line size */
15870 #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
15871 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
15872 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
15873
15874 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
15875 +#define __read_only __attribute__((__section__(".data..read_only")))
15876
15877 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
15878 -#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
15879 +#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
15880
15881 #ifdef CONFIG_X86_VSMP
15882 #ifdef CONFIG_SMP
15883 diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
15884 index 9863ee3..4a1f8e1 100644
15885 --- a/arch/x86/include/asm/cacheflush.h
15886 +++ b/arch/x86/include/asm/cacheflush.h
15887 @@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg)
15888 unsigned long pg_flags = pg->flags & _PGMT_MASK;
15889
15890 if (pg_flags == _PGMT_DEFAULT)
15891 - return -1;
15892 + return ~0UL;
15893 else if (pg_flags == _PGMT_WC)
15894 return _PAGE_CACHE_WC;
15895 else if (pg_flags == _PGMT_UC_MINUS)
15896 diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
15897 index cb4c73b..c473c29 100644
15898 --- a/arch/x86/include/asm/calling.h
15899 +++ b/arch/x86/include/asm/calling.h
15900 @@ -82,103 +82,113 @@ For 32-bit we have the following conventions - kernel is built with
15901 #define RSP 152
15902 #define SS 160
15903
15904 -#define ARGOFFSET R11
15905 -#define SWFRAME ORIG_RAX
15906 +#define ARGOFFSET R15
15907
15908 .macro SAVE_ARGS addskip=0, save_rcx=1, save_r891011=1
15909 - subq $9*8+\addskip, %rsp
15910 - CFI_ADJUST_CFA_OFFSET 9*8+\addskip
15911 - movq_cfi rdi, 8*8
15912 - movq_cfi rsi, 7*8
15913 - movq_cfi rdx, 6*8
15914 + subq $ORIG_RAX-ARGOFFSET+\addskip, %rsp
15915 + CFI_ADJUST_CFA_OFFSET ORIG_RAX-ARGOFFSET+\addskip
15916 + movq_cfi rdi, RDI
15917 + movq_cfi rsi, RSI
15918 + movq_cfi rdx, RDX
15919
15920 .if \save_rcx
15921 - movq_cfi rcx, 5*8
15922 + movq_cfi rcx, RCX
15923 .endif
15924
15925 - movq_cfi rax, 4*8
15926 + movq_cfi rax, RAX
15927
15928 .if \save_r891011
15929 - movq_cfi r8, 3*8
15930 - movq_cfi r9, 2*8
15931 - movq_cfi r10, 1*8
15932 - movq_cfi r11, 0*8
15933 + movq_cfi r8, R8
15934 + movq_cfi r9, R9
15935 + movq_cfi r10, R10
15936 + movq_cfi r11, R11
15937 .endif
15938
15939 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
15940 + movq_cfi r12, R12
15941 +#endif
15942 +
15943 .endm
15944
15945 -#define ARG_SKIP (9*8)
15946 +#define ARG_SKIP ORIG_RAX
15947
15948 .macro RESTORE_ARGS rstor_rax=1, addskip=0, rstor_rcx=1, rstor_r11=1, \
15949 rstor_r8910=1, rstor_rdx=1
15950 +
15951 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
15952 + movq_cfi_restore R12, r12
15953 +#endif
15954 +
15955 .if \rstor_r11
15956 - movq_cfi_restore 0*8, r11
15957 + movq_cfi_restore R11, r11
15958 .endif
15959
15960 .if \rstor_r8910
15961 - movq_cfi_restore 1*8, r10
15962 - movq_cfi_restore 2*8, r9
15963 - movq_cfi_restore 3*8, r8
15964 + movq_cfi_restore R10, r10
15965 + movq_cfi_restore R9, r9
15966 + movq_cfi_restore R8, r8
15967 .endif
15968
15969 .if \rstor_rax
15970 - movq_cfi_restore 4*8, rax
15971 + movq_cfi_restore RAX, rax
15972 .endif
15973
15974 .if \rstor_rcx
15975 - movq_cfi_restore 5*8, rcx
15976 + movq_cfi_restore RCX, rcx
15977 .endif
15978
15979 .if \rstor_rdx
15980 - movq_cfi_restore 6*8, rdx
15981 + movq_cfi_restore RDX, rdx
15982 .endif
15983
15984 - movq_cfi_restore 7*8, rsi
15985 - movq_cfi_restore 8*8, rdi
15986 + movq_cfi_restore RSI, rsi
15987 + movq_cfi_restore RDI, rdi
15988
15989 - .if ARG_SKIP+\addskip > 0
15990 - addq $ARG_SKIP+\addskip, %rsp
15991 - CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip)
15992 + .if ORIG_RAX+\addskip > 0
15993 + addq $ORIG_RAX+\addskip, %rsp
15994 + CFI_ADJUST_CFA_OFFSET -(ORIG_RAX+\addskip)
15995 .endif
15996 .endm
15997
15998 - .macro LOAD_ARGS offset, skiprax=0
15999 - movq \offset(%rsp), %r11
16000 - movq \offset+8(%rsp), %r10
16001 - movq \offset+16(%rsp), %r9
16002 - movq \offset+24(%rsp), %r8
16003 - movq \offset+40(%rsp), %rcx
16004 - movq \offset+48(%rsp), %rdx
16005 - movq \offset+56(%rsp), %rsi
16006 - movq \offset+64(%rsp), %rdi
16007 + .macro LOAD_ARGS skiprax=0
16008 + movq R11(%rsp), %r11
16009 + movq R10(%rsp), %r10
16010 + movq R9(%rsp), %r9
16011 + movq R8(%rsp), %r8
16012 + movq RCX(%rsp), %rcx
16013 + movq RDX(%rsp), %rdx
16014 + movq RSI(%rsp), %rsi
16015 + movq RDI(%rsp), %rdi
16016 .if \skiprax
16017 .else
16018 - movq \offset+72(%rsp), %rax
16019 + movq RAX(%rsp), %rax
16020 .endif
16021 .endm
16022
16023 -#define REST_SKIP (6*8)
16024 -
16025 .macro SAVE_REST
16026 - subq $REST_SKIP, %rsp
16027 - CFI_ADJUST_CFA_OFFSET REST_SKIP
16028 - movq_cfi rbx, 5*8
16029 - movq_cfi rbp, 4*8
16030 - movq_cfi r12, 3*8
16031 - movq_cfi r13, 2*8
16032 - movq_cfi r14, 1*8
16033 - movq_cfi r15, 0*8
16034 + movq_cfi rbx, RBX
16035 + movq_cfi rbp, RBP
16036 +
16037 +#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16038 + movq_cfi r12, R12
16039 +#endif
16040 +
16041 + movq_cfi r13, R13
16042 + movq_cfi r14, R14
16043 + movq_cfi r15, R15
16044 .endm
16045
16046 .macro RESTORE_REST
16047 - movq_cfi_restore 0*8, r15
16048 - movq_cfi_restore 1*8, r14
16049 - movq_cfi_restore 2*8, r13
16050 - movq_cfi_restore 3*8, r12
16051 - movq_cfi_restore 4*8, rbp
16052 - movq_cfi_restore 5*8, rbx
16053 - addq $REST_SKIP, %rsp
16054 - CFI_ADJUST_CFA_OFFSET -(REST_SKIP)
16055 + movq_cfi_restore R15, r15
16056 + movq_cfi_restore R14, r14
16057 + movq_cfi_restore R13, r13
16058 +
16059 +#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16060 + movq_cfi_restore R12, r12
16061 +#endif
16062 +
16063 + movq_cfi_restore RBP, rbp
16064 + movq_cfi_restore RBX, rbx
16065 .endm
16066
16067 .macro SAVE_ALL
16068 diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
16069 index f50de69..2b0a458 100644
16070 --- a/arch/x86/include/asm/checksum_32.h
16071 +++ b/arch/x86/include/asm/checksum_32.h
16072 @@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
16073 int len, __wsum sum,
16074 int *src_err_ptr, int *dst_err_ptr);
16075
16076 +asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
16077 + int len, __wsum sum,
16078 + int *src_err_ptr, int *dst_err_ptr);
16079 +
16080 +asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
16081 + int len, __wsum sum,
16082 + int *src_err_ptr, int *dst_err_ptr);
16083 +
16084 /*
16085 * Note: when you get a NULL pointer exception here this means someone
16086 * passed in an incorrect kernel address to one of these functions.
16087 @@ -53,7 +61,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
16088
16089 might_sleep();
16090 stac();
16091 - ret = csum_partial_copy_generic((__force void *)src, dst,
16092 + ret = csum_partial_copy_generic_from_user((__force void *)src, dst,
16093 len, sum, err_ptr, NULL);
16094 clac();
16095
16096 @@ -187,7 +195,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
16097 might_sleep();
16098 if (access_ok(VERIFY_WRITE, dst, len)) {
16099 stac();
16100 - ret = csum_partial_copy_generic(src, (__force void *)dst,
16101 + ret = csum_partial_copy_generic_to_user(src, (__force void *)dst,
16102 len, sum, NULL, err_ptr);
16103 clac();
16104 return ret;
16105 diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
16106 index d47786a..2d8883e 100644
16107 --- a/arch/x86/include/asm/cmpxchg.h
16108 +++ b/arch/x86/include/asm/cmpxchg.h
16109 @@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void)
16110 __compiletime_error("Bad argument size for cmpxchg");
16111 extern void __xadd_wrong_size(void)
16112 __compiletime_error("Bad argument size for xadd");
16113 +extern void __xadd_check_overflow_wrong_size(void)
16114 + __compiletime_error("Bad argument size for xadd_check_overflow");
16115 extern void __add_wrong_size(void)
16116 __compiletime_error("Bad argument size for add");
16117 +extern void __add_check_overflow_wrong_size(void)
16118 + __compiletime_error("Bad argument size for add_check_overflow");
16119
16120 /*
16121 * Constants for operation sizes. On 32-bit, the 64-bit size it set to
16122 @@ -67,6 +71,38 @@ extern void __add_wrong_size(void)
16123 __ret; \
16124 })
16125
16126 +#ifdef CONFIG_PAX_REFCOUNT
16127 +#define __xchg_op_check_overflow(ptr, arg, op, lock) \
16128 + ({ \
16129 + __typeof__ (*(ptr)) __ret = (arg); \
16130 + switch (sizeof(*(ptr))) { \
16131 + case __X86_CASE_L: \
16132 + asm volatile (lock #op "l %0, %1\n" \
16133 + "jno 0f\n" \
16134 + "mov %0,%1\n" \
16135 + "int $4\n0:\n" \
16136 + _ASM_EXTABLE(0b, 0b) \
16137 + : "+r" (__ret), "+m" (*(ptr)) \
16138 + : : "memory", "cc"); \
16139 + break; \
16140 + case __X86_CASE_Q: \
16141 + asm volatile (lock #op "q %q0, %1\n" \
16142 + "jno 0f\n" \
16143 + "mov %0,%1\n" \
16144 + "int $4\n0:\n" \
16145 + _ASM_EXTABLE(0b, 0b) \
16146 + : "+r" (__ret), "+m" (*(ptr)) \
16147 + : : "memory", "cc"); \
16148 + break; \
16149 + default: \
16150 + __ ## op ## _check_overflow_wrong_size(); \
16151 + } \
16152 + __ret; \
16153 + })
16154 +#else
16155 +#define __xchg_op_check_overflow(ptr, arg, op, lock) __xchg_op(ptr, arg, op, lock)
16156 +#endif
16157 +
16158 /*
16159 * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
16160 * Since this is generally used to protect other memory information, we
16161 @@ -167,6 +203,9 @@ extern void __add_wrong_size(void)
16162 #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ")
16163 #define xadd_local(ptr, inc) __xadd((ptr), (inc), "")
16164
16165 +#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock)
16166 +#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
16167 +
16168 #define __add(ptr, inc, lock) \
16169 ({ \
16170 __typeof__ (*(ptr)) __ret = (inc); \
16171 diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
16172 index 59c6c40..5e0b22c 100644
16173 --- a/arch/x86/include/asm/compat.h
16174 +++ b/arch/x86/include/asm/compat.h
16175 @@ -41,7 +41,7 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
16176 typedef u32 compat_uint_t;
16177 typedef u32 compat_ulong_t;
16178 typedef u64 __attribute__((aligned(4))) compat_u64;
16179 -typedef u32 compat_uptr_t;
16180 +typedef u32 __user compat_uptr_t;
16181
16182 struct compat_timespec {
16183 compat_time_t tv_sec;
16184 diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
16185 index e265ff9..72c253b 100644
16186 --- a/arch/x86/include/asm/cpufeature.h
16187 +++ b/arch/x86/include/asm/cpufeature.h
16188 @@ -203,7 +203,7 @@
16189 #define X86_FEATURE_DECODEASSISTS (8*32+12) /* AMD Decode Assists support */
16190 #define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */
16191 #define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */
16192 -
16193 +#define X86_FEATURE_STRONGUDEREF (8*32+31) /* PaX PCID based strong UDEREF */
16194
16195 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
16196 #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
16197 @@ -211,7 +211,7 @@
16198 #define X86_FEATURE_BMI1 (9*32+ 3) /* 1st group bit manipulation extensions */
16199 #define X86_FEATURE_HLE (9*32+ 4) /* Hardware Lock Elision */
16200 #define X86_FEATURE_AVX2 (9*32+ 5) /* AVX2 instructions */
16201 -#define X86_FEATURE_SMEP (9*32+ 7) /* Supervisor Mode Execution Protection */
16202 +#define X86_FEATURE_SMEP (9*32+ 7) /* Supervisor Mode Execution Prevention */
16203 #define X86_FEATURE_BMI2 (9*32+ 8) /* 2nd group bit manipulation extensions */
16204 #define X86_FEATURE_ERMS (9*32+ 9) /* Enhanced REP MOVSB/STOSB */
16205 #define X86_FEATURE_INVPCID (9*32+10) /* Invalidate Processor Context ID */
16206 @@ -359,6 +359,7 @@ extern const char * const x86_power_flags[32];
16207 #undef cpu_has_centaur_mcr
16208 #define cpu_has_centaur_mcr 0
16209
16210 +#define cpu_has_pcid boot_cpu_has(X86_FEATURE_PCID)
16211 #endif /* CONFIG_X86_64 */
16212
16213 #if __GNUC__ >= 4
16214 @@ -411,7 +412,8 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16215
16216 #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS
16217 t_warn:
16218 - warn_pre_alternatives();
16219 + if (bit != X86_FEATURE_PCID && bit != X86_FEATURE_INVPCID)
16220 + warn_pre_alternatives();
16221 return false;
16222 #endif
16223
16224 @@ -431,7 +433,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16225 ".section .discard,\"aw\",@progbits\n"
16226 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16227 ".previous\n"
16228 - ".section .altinstr_replacement,\"ax\"\n"
16229 + ".section .altinstr_replacement,\"a\"\n"
16230 "3: movb $1,%0\n"
16231 "4:\n"
16232 ".previous\n"
16233 @@ -468,7 +470,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16234 " .byte 2b - 1b\n" /* src len */
16235 " .byte 4f - 3f\n" /* repl len */
16236 ".previous\n"
16237 - ".section .altinstr_replacement,\"ax\"\n"
16238 + ".section .altinstr_replacement,\"a\"\n"
16239 "3: .byte 0xe9\n .long %l[t_no] - 2b\n"
16240 "4:\n"
16241 ".previous\n"
16242 @@ -501,7 +503,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16243 ".section .discard,\"aw\",@progbits\n"
16244 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16245 ".previous\n"
16246 - ".section .altinstr_replacement,\"ax\"\n"
16247 + ".section .altinstr_replacement,\"a\"\n"
16248 "3: movb $0,%0\n"
16249 "4:\n"
16250 ".previous\n"
16251 @@ -515,7 +517,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16252 ".section .discard,\"aw\",@progbits\n"
16253 " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */
16254 ".previous\n"
16255 - ".section .altinstr_replacement,\"ax\"\n"
16256 + ".section .altinstr_replacement,\"a\"\n"
16257 "5: movb $1,%0\n"
16258 "6:\n"
16259 ".previous\n"
16260 diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
16261 index 50d033a..37deb26 100644
16262 --- a/arch/x86/include/asm/desc.h
16263 +++ b/arch/x86/include/asm/desc.h
16264 @@ -4,6 +4,7 @@
16265 #include <asm/desc_defs.h>
16266 #include <asm/ldt.h>
16267 #include <asm/mmu.h>
16268 +#include <asm/pgtable.h>
16269
16270 #include <linux/smp.h>
16271 #include <linux/percpu.h>
16272 @@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16273
16274 desc->type = (info->read_exec_only ^ 1) << 1;
16275 desc->type |= info->contents << 2;
16276 + desc->type |= info->seg_not_present ^ 1;
16277
16278 desc->s = 1;
16279 desc->dpl = 0x3;
16280 @@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16281 }
16282
16283 extern struct desc_ptr idt_descr;
16284 -extern gate_desc idt_table[];
16285 -extern struct desc_ptr debug_idt_descr;
16286 -extern gate_desc debug_idt_table[];
16287 -
16288 -struct gdt_page {
16289 - struct desc_struct gdt[GDT_ENTRIES];
16290 -} __attribute__((aligned(PAGE_SIZE)));
16291 -
16292 -DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
16293 +extern gate_desc idt_table[IDT_ENTRIES];
16294 +extern const struct desc_ptr debug_idt_descr;
16295 +extern gate_desc debug_idt_table[IDT_ENTRIES];
16296
16297 +extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
16298 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
16299 {
16300 - return per_cpu(gdt_page, cpu).gdt;
16301 + return cpu_gdt_table[cpu];
16302 }
16303
16304 #ifdef CONFIG_X86_64
16305 @@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
16306 unsigned long base, unsigned dpl, unsigned flags,
16307 unsigned short seg)
16308 {
16309 - gate->a = (seg << 16) | (base & 0xffff);
16310 - gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
16311 + gate->gate.offset_low = base;
16312 + gate->gate.seg = seg;
16313 + gate->gate.reserved = 0;
16314 + gate->gate.type = type;
16315 + gate->gate.s = 0;
16316 + gate->gate.dpl = dpl;
16317 + gate->gate.p = 1;
16318 + gate->gate.offset_high = base >> 16;
16319 }
16320
16321 #endif
16322 @@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
16323
16324 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
16325 {
16326 + pax_open_kernel();
16327 memcpy(&idt[entry], gate, sizeof(*gate));
16328 + pax_close_kernel();
16329 }
16330
16331 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
16332 {
16333 + pax_open_kernel();
16334 memcpy(&ldt[entry], desc, 8);
16335 + pax_close_kernel();
16336 }
16337
16338 static inline void
16339 @@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
16340 default: size = sizeof(*gdt); break;
16341 }
16342
16343 + pax_open_kernel();
16344 memcpy(&gdt[entry], desc, size);
16345 + pax_close_kernel();
16346 }
16347
16348 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
16349 @@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
16350
16351 static inline void native_load_tr_desc(void)
16352 {
16353 + pax_open_kernel();
16354 asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
16355 + pax_close_kernel();
16356 }
16357
16358 static inline void native_load_gdt(const struct desc_ptr *dtr)
16359 @@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
16360 struct desc_struct *gdt = get_cpu_gdt_table(cpu);
16361 unsigned int i;
16362
16363 + pax_open_kernel();
16364 for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
16365 gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
16366 + pax_close_kernel();
16367 }
16368
16369 #define _LDT_empty(info) \
16370 @@ -287,7 +300,7 @@ static inline void load_LDT(mm_context_t *pc)
16371 preempt_enable();
16372 }
16373
16374 -static inline unsigned long get_desc_base(const struct desc_struct *desc)
16375 +static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
16376 {
16377 return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
16378 }
16379 @@ -311,7 +324,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
16380 }
16381
16382 #ifdef CONFIG_X86_64
16383 -static inline void set_nmi_gate(int gate, void *addr)
16384 +static inline void set_nmi_gate(int gate, const void *addr)
16385 {
16386 gate_desc s;
16387
16388 @@ -321,14 +334,14 @@ static inline void set_nmi_gate(int gate, void *addr)
16389 #endif
16390
16391 #ifdef CONFIG_TRACING
16392 -extern struct desc_ptr trace_idt_descr;
16393 -extern gate_desc trace_idt_table[];
16394 +extern const struct desc_ptr trace_idt_descr;
16395 +extern gate_desc trace_idt_table[IDT_ENTRIES];
16396 static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16397 {
16398 write_idt_entry(trace_idt_table, entry, gate);
16399 }
16400
16401 -static inline void _trace_set_gate(int gate, unsigned type, void *addr,
16402 +static inline void _trace_set_gate(int gate, unsigned type, const void *addr,
16403 unsigned dpl, unsigned ist, unsigned seg)
16404 {
16405 gate_desc s;
16406 @@ -348,7 +361,7 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16407 #define _trace_set_gate(gate, type, addr, dpl, ist, seg)
16408 #endif
16409
16410 -static inline void _set_gate(int gate, unsigned type, void *addr,
16411 +static inline void _set_gate(int gate, unsigned type, const void *addr,
16412 unsigned dpl, unsigned ist, unsigned seg)
16413 {
16414 gate_desc s;
16415 @@ -371,9 +384,9 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
16416 #define set_intr_gate(n, addr) \
16417 do { \
16418 BUG_ON((unsigned)n > 0xFF); \
16419 - _set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0, \
16420 + _set_gate(n, GATE_INTERRUPT, (const void *)addr, 0, 0, \
16421 __KERNEL_CS); \
16422 - _trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
16423 + _trace_set_gate(n, GATE_INTERRUPT, (const void *)trace_##addr,\
16424 0, 0, __KERNEL_CS); \
16425 } while (0)
16426
16427 @@ -401,19 +414,19 @@ static inline void alloc_system_vector(int vector)
16428 /*
16429 * This routine sets up an interrupt gate at directory privilege level 3.
16430 */
16431 -static inline void set_system_intr_gate(unsigned int n, void *addr)
16432 +static inline void set_system_intr_gate(unsigned int n, const void *addr)
16433 {
16434 BUG_ON((unsigned)n > 0xFF);
16435 _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
16436 }
16437
16438 -static inline void set_system_trap_gate(unsigned int n, void *addr)
16439 +static inline void set_system_trap_gate(unsigned int n, const void *addr)
16440 {
16441 BUG_ON((unsigned)n > 0xFF);
16442 _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
16443 }
16444
16445 -static inline void set_trap_gate(unsigned int n, void *addr)
16446 +static inline void set_trap_gate(unsigned int n, const void *addr)
16447 {
16448 BUG_ON((unsigned)n > 0xFF);
16449 _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
16450 @@ -422,16 +435,16 @@ static inline void set_trap_gate(unsigned int n, void *addr)
16451 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
16452 {
16453 BUG_ON((unsigned)n > 0xFF);
16454 - _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
16455 + _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
16456 }
16457
16458 -static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
16459 +static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
16460 {
16461 BUG_ON((unsigned)n > 0xFF);
16462 _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
16463 }
16464
16465 -static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
16466 +static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
16467 {
16468 BUG_ON((unsigned)n > 0xFF);
16469 _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
16470 @@ -503,4 +516,17 @@ static inline void load_current_idt(void)
16471 else
16472 load_idt((const struct desc_ptr *)&idt_descr);
16473 }
16474 +
16475 +#ifdef CONFIG_X86_32
16476 +static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
16477 +{
16478 + struct desc_struct d;
16479 +
16480 + if (likely(limit))
16481 + limit = (limit - 1UL) >> PAGE_SHIFT;
16482 + pack_descriptor(&d, base, limit, 0xFB, 0xC);
16483 + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
16484 +}
16485 +#endif
16486 +
16487 #endif /* _ASM_X86_DESC_H */
16488 diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
16489 index 278441f..b95a174 100644
16490 --- a/arch/x86/include/asm/desc_defs.h
16491 +++ b/arch/x86/include/asm/desc_defs.h
16492 @@ -31,6 +31,12 @@ struct desc_struct {
16493 unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
16494 unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
16495 };
16496 + struct {
16497 + u16 offset_low;
16498 + u16 seg;
16499 + unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
16500 + unsigned offset_high: 16;
16501 + } gate;
16502 };
16503 } __attribute__((packed));
16504
16505 diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
16506 index ced283a..ffe04cc 100644
16507 --- a/arch/x86/include/asm/div64.h
16508 +++ b/arch/x86/include/asm/div64.h
16509 @@ -39,7 +39,7 @@
16510 __mod; \
16511 })
16512
16513 -static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16514 +static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16515 {
16516 union {
16517 u64 v64;
16518 diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
16519 index 2c71182..731124d 100644
16520 --- a/arch/x86/include/asm/elf.h
16521 +++ b/arch/x86/include/asm/elf.h
16522 @@ -243,7 +243,25 @@ extern int force_personality32;
16523 the loader. We need to make sure that it is out of the way of the program
16524 that it will "exec", and that there is sufficient room for the brk. */
16525
16526 +#ifdef CONFIG_PAX_SEGMEXEC
16527 +#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
16528 +#else
16529 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
16530 +#endif
16531 +
16532 +#ifdef CONFIG_PAX_ASLR
16533 +#ifdef CONFIG_X86_32
16534 +#define PAX_ELF_ET_DYN_BASE 0x10000000UL
16535 +
16536 +#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16537 +#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16538 +#else
16539 +#define PAX_ELF_ET_DYN_BASE 0x400000UL
16540 +
16541 +#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16542 +#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16543 +#endif
16544 +#endif
16545
16546 /* This yields a mask that user programs can use to figure out what
16547 instruction set this CPU supports. This could be done in user space,
16548 @@ -292,16 +310,12 @@ do { \
16549
16550 #define ARCH_DLINFO \
16551 do { \
16552 - if (vdso_enabled) \
16553 - NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16554 - (unsigned long)current->mm->context.vdso); \
16555 + NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16556 } while (0)
16557
16558 #define ARCH_DLINFO_X32 \
16559 do { \
16560 - if (vdso_enabled) \
16561 - NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16562 - (unsigned long)current->mm->context.vdso); \
16563 + NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16564 } while (0)
16565
16566 #define AT_SYSINFO 32
16567 @@ -316,7 +330,7 @@ else \
16568
16569 #endif /* !CONFIG_X86_32 */
16570
16571 -#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
16572 +#define VDSO_CURRENT_BASE (current->mm->context.vdso)
16573
16574 #define VDSO_ENTRY \
16575 ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
16576 @@ -332,9 +346,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm,
16577 extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
16578 #define compat_arch_setup_additional_pages syscall32_setup_pages
16579
16580 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
16581 -#define arch_randomize_brk arch_randomize_brk
16582 -
16583 /*
16584 * True on X86_32 or when emulating IA32 on X86_64
16585 */
16586 diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
16587 index 77a99ac..39ff7f5 100644
16588 --- a/arch/x86/include/asm/emergency-restart.h
16589 +++ b/arch/x86/include/asm/emergency-restart.h
16590 @@ -1,6 +1,6 @@
16591 #ifndef _ASM_X86_EMERGENCY_RESTART_H
16592 #define _ASM_X86_EMERGENCY_RESTART_H
16593
16594 -extern void machine_emergency_restart(void);
16595 +extern void machine_emergency_restart(void) __noreturn;
16596
16597 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
16598 diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
16599 index 1c7eefe..d0e4702 100644
16600 --- a/arch/x86/include/asm/floppy.h
16601 +++ b/arch/x86/include/asm/floppy.h
16602 @@ -229,18 +229,18 @@ static struct fd_routine_l {
16603 int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
16604 } fd_routine[] = {
16605 {
16606 - request_dma,
16607 - free_dma,
16608 - get_dma_residue,
16609 - dma_mem_alloc,
16610 - hard_dma_setup
16611 + ._request_dma = request_dma,
16612 + ._free_dma = free_dma,
16613 + ._get_dma_residue = get_dma_residue,
16614 + ._dma_mem_alloc = dma_mem_alloc,
16615 + ._dma_setup = hard_dma_setup
16616 },
16617 {
16618 - vdma_request_dma,
16619 - vdma_nop,
16620 - vdma_get_dma_residue,
16621 - vdma_mem_alloc,
16622 - vdma_dma_setup
16623 + ._request_dma = vdma_request_dma,
16624 + ._free_dma = vdma_nop,
16625 + ._get_dma_residue = vdma_get_dma_residue,
16626 + ._dma_mem_alloc = vdma_mem_alloc,
16627 + ._dma_setup = vdma_dma_setup
16628 }
16629 };
16630
16631 diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
16632 index cea1c76..6c0d79b 100644
16633 --- a/arch/x86/include/asm/fpu-internal.h
16634 +++ b/arch/x86/include/asm/fpu-internal.h
16635 @@ -124,8 +124,11 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16636 #define user_insn(insn, output, input...) \
16637 ({ \
16638 int err; \
16639 + pax_open_userland(); \
16640 asm volatile(ASM_STAC "\n" \
16641 - "1:" #insn "\n\t" \
16642 + "1:" \
16643 + __copyuser_seg \
16644 + #insn "\n\t" \
16645 "2: " ASM_CLAC "\n" \
16646 ".section .fixup,\"ax\"\n" \
16647 "3: movl $-1,%[err]\n" \
16648 @@ -134,6 +137,7 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16649 _ASM_EXTABLE(1b, 3b) \
16650 : [err] "=r" (err), output \
16651 : "0"(0), input); \
16652 + pax_close_userland(); \
16653 err; \
16654 })
16655
16656 @@ -298,7 +302,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
16657 "fnclex\n\t"
16658 "emms\n\t"
16659 "fildl %P[addr]" /* set F?P to defined value */
16660 - : : [addr] "m" (tsk->thread.fpu.has_fpu));
16661 + : : [addr] "m" (init_tss[raw_smp_processor_id()].x86_tss.sp0));
16662 }
16663
16664 return fpu_restore_checking(&tsk->thread.fpu);
16665 diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
16666 index b4c1f54..e290c08 100644
16667 --- a/arch/x86/include/asm/futex.h
16668 +++ b/arch/x86/include/asm/futex.h
16669 @@ -12,6 +12,7 @@
16670 #include <asm/smap.h>
16671
16672 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
16673 + typecheck(u32 __user *, uaddr); \
16674 asm volatile("\t" ASM_STAC "\n" \
16675 "1:\t" insn "\n" \
16676 "2:\t" ASM_CLAC "\n" \
16677 @@ -20,15 +21,16 @@
16678 "\tjmp\t2b\n" \
16679 "\t.previous\n" \
16680 _ASM_EXTABLE(1b, 3b) \
16681 - : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
16682 + : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr)) \
16683 : "i" (-EFAULT), "0" (oparg), "1" (0))
16684
16685 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
16686 + typecheck(u32 __user *, uaddr); \
16687 asm volatile("\t" ASM_STAC "\n" \
16688 "1:\tmovl %2, %0\n" \
16689 "\tmovl\t%0, %3\n" \
16690 "\t" insn "\n" \
16691 - "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
16692 + "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n" \
16693 "\tjnz\t1b\n" \
16694 "3:\t" ASM_CLAC "\n" \
16695 "\t.section .fixup,\"ax\"\n" \
16696 @@ -38,7 +40,7 @@
16697 _ASM_EXTABLE(1b, 4b) \
16698 _ASM_EXTABLE(2b, 4b) \
16699 : "=&a" (oldval), "=&r" (ret), \
16700 - "+m" (*uaddr), "=&r" (tem) \
16701 + "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \
16702 : "r" (oparg), "i" (-EFAULT), "1" (0))
16703
16704 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16705 @@ -57,12 +59,13 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16706
16707 pagefault_disable();
16708
16709 + pax_open_userland();
16710 switch (op) {
16711 case FUTEX_OP_SET:
16712 - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
16713 + __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
16714 break;
16715 case FUTEX_OP_ADD:
16716 - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
16717 + __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
16718 uaddr, oparg);
16719 break;
16720 case FUTEX_OP_OR:
16721 @@ -77,6 +80,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16722 default:
16723 ret = -ENOSYS;
16724 }
16725 + pax_close_userland();
16726
16727 pagefault_enable();
16728
16729 diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
16730 index a307b75..ec74ca2 100644
16731 --- a/arch/x86/include/asm/hw_irq.h
16732 +++ b/arch/x86/include/asm/hw_irq.h
16733 @@ -164,8 +164,8 @@ extern void setup_ioapic_dest(void);
16734 extern void enable_IO_APIC(void);
16735
16736 /* Statistics */
16737 -extern atomic_t irq_err_count;
16738 -extern atomic_t irq_mis_count;
16739 +extern atomic_unchecked_t irq_err_count;
16740 +extern atomic_unchecked_t irq_mis_count;
16741
16742 /* EISA */
16743 extern void eisa_set_level_irq(unsigned int irq);
16744 diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
16745 index a203659..9889f1c 100644
16746 --- a/arch/x86/include/asm/i8259.h
16747 +++ b/arch/x86/include/asm/i8259.h
16748 @@ -62,7 +62,7 @@ struct legacy_pic {
16749 void (*init)(int auto_eoi);
16750 int (*irq_pending)(unsigned int irq);
16751 void (*make_irq)(unsigned int irq);
16752 -};
16753 +} __do_const;
16754
16755 extern struct legacy_pic *legacy_pic;
16756 extern struct legacy_pic null_legacy_pic;
16757 diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
16758 index b8237d8..3e8864e 100644
16759 --- a/arch/x86/include/asm/io.h
16760 +++ b/arch/x86/include/asm/io.h
16761 @@ -52,12 +52,12 @@ static inline void name(type val, volatile void __iomem *addr) \
16762 "m" (*(volatile type __force *)addr) barrier); }
16763
16764 build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
16765 -build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
16766 -build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
16767 +build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
16768 +build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
16769
16770 build_mmio_read(__readb, "b", unsigned char, "=q", )
16771 -build_mmio_read(__readw, "w", unsigned short, "=r", )
16772 -build_mmio_read(__readl, "l", unsigned int, "=r", )
16773 +build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
16774 +build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
16775
16776 build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
16777 build_mmio_write(writew, "w", unsigned short, "r", :"memory")
16778 @@ -109,7 +109,7 @@ build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
16779 * this function
16780 */
16781
16782 -static inline phys_addr_t virt_to_phys(volatile void *address)
16783 +static inline phys_addr_t __intentional_overflow(-1) virt_to_phys(volatile void *address)
16784 {
16785 return __pa(address);
16786 }
16787 @@ -185,7 +185,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
16788 return ioremap_nocache(offset, size);
16789 }
16790
16791 -extern void iounmap(volatile void __iomem *addr);
16792 +extern void iounmap(const volatile void __iomem *addr);
16793
16794 extern void set_iounmap_nonlazy(void);
16795
16796 @@ -195,6 +195,17 @@ extern void set_iounmap_nonlazy(void);
16797
16798 #include <linux/vmalloc.h>
16799
16800 +#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
16801 +static inline int valid_phys_addr_range(unsigned long addr, size_t count)
16802 +{
16803 + return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
16804 +}
16805 +
16806 +static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
16807 +{
16808 + return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
16809 +}
16810 +
16811 /*
16812 * Convert a virtual cached pointer to an uncached pointer
16813 */
16814 diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
16815 index bba3cf8..06bc8da 100644
16816 --- a/arch/x86/include/asm/irqflags.h
16817 +++ b/arch/x86/include/asm/irqflags.h
16818 @@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
16819 sti; \
16820 sysexit
16821
16822 +#define GET_CR0_INTO_RDI mov %cr0, %rdi
16823 +#define SET_RDI_INTO_CR0 mov %rdi, %cr0
16824 +#define GET_CR3_INTO_RDI mov %cr3, %rdi
16825 +#define SET_RDI_INTO_CR3 mov %rdi, %cr3
16826 +
16827 #else
16828 #define INTERRUPT_RETURN iret
16829 #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
16830 diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
16831 index 9454c16..e4100e3 100644
16832 --- a/arch/x86/include/asm/kprobes.h
16833 +++ b/arch/x86/include/asm/kprobes.h
16834 @@ -38,13 +38,8 @@ typedef u8 kprobe_opcode_t;
16835 #define RELATIVEJUMP_SIZE 5
16836 #define RELATIVECALL_OPCODE 0xe8
16837 #define RELATIVE_ADDR_SIZE 4
16838 -#define MAX_STACK_SIZE 64
16839 -#define MIN_STACK_SIZE(ADDR) \
16840 - (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
16841 - THREAD_SIZE - (unsigned long)(ADDR))) \
16842 - ? (MAX_STACK_SIZE) \
16843 - : (((unsigned long)current_thread_info()) + \
16844 - THREAD_SIZE - (unsigned long)(ADDR)))
16845 +#define MAX_STACK_SIZE 64UL
16846 +#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
16847
16848 #define flush_insn_slot(p) do { } while (0)
16849
16850 diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
16851 index 4ad6560..75c7bdd 100644
16852 --- a/arch/x86/include/asm/local.h
16853 +++ b/arch/x86/include/asm/local.h
16854 @@ -10,33 +10,97 @@ typedef struct {
16855 atomic_long_t a;
16856 } local_t;
16857
16858 +typedef struct {
16859 + atomic_long_unchecked_t a;
16860 +} local_unchecked_t;
16861 +
16862 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
16863
16864 #define local_read(l) atomic_long_read(&(l)->a)
16865 +#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
16866 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
16867 +#define local_set_unchecked(l, i) atomic_long_set_unchecked(&(l)->a, (i))
16868
16869 static inline void local_inc(local_t *l)
16870 {
16871 - asm volatile(_ASM_INC "%0"
16872 + asm volatile(_ASM_INC "%0\n"
16873 +
16874 +#ifdef CONFIG_PAX_REFCOUNT
16875 + "jno 0f\n"
16876 + _ASM_DEC "%0\n"
16877 + "int $4\n0:\n"
16878 + _ASM_EXTABLE(0b, 0b)
16879 +#endif
16880 +
16881 + : "+m" (l->a.counter));
16882 +}
16883 +
16884 +static inline void local_inc_unchecked(local_unchecked_t *l)
16885 +{
16886 + asm volatile(_ASM_INC "%0\n"
16887 : "+m" (l->a.counter));
16888 }
16889
16890 static inline void local_dec(local_t *l)
16891 {
16892 - asm volatile(_ASM_DEC "%0"
16893 + asm volatile(_ASM_DEC "%0\n"
16894 +
16895 +#ifdef CONFIG_PAX_REFCOUNT
16896 + "jno 0f\n"
16897 + _ASM_INC "%0\n"
16898 + "int $4\n0:\n"
16899 + _ASM_EXTABLE(0b, 0b)
16900 +#endif
16901 +
16902 + : "+m" (l->a.counter));
16903 +}
16904 +
16905 +static inline void local_dec_unchecked(local_unchecked_t *l)
16906 +{
16907 + asm volatile(_ASM_DEC "%0\n"
16908 : "+m" (l->a.counter));
16909 }
16910
16911 static inline void local_add(long i, local_t *l)
16912 {
16913 - asm volatile(_ASM_ADD "%1,%0"
16914 + asm volatile(_ASM_ADD "%1,%0\n"
16915 +
16916 +#ifdef CONFIG_PAX_REFCOUNT
16917 + "jno 0f\n"
16918 + _ASM_SUB "%1,%0\n"
16919 + "int $4\n0:\n"
16920 + _ASM_EXTABLE(0b, 0b)
16921 +#endif
16922 +
16923 + : "+m" (l->a.counter)
16924 + : "ir" (i));
16925 +}
16926 +
16927 +static inline void local_add_unchecked(long i, local_unchecked_t *l)
16928 +{
16929 + asm volatile(_ASM_ADD "%1,%0\n"
16930 : "+m" (l->a.counter)
16931 : "ir" (i));
16932 }
16933
16934 static inline void local_sub(long i, local_t *l)
16935 {
16936 - asm volatile(_ASM_SUB "%1,%0"
16937 + asm volatile(_ASM_SUB "%1,%0\n"
16938 +
16939 +#ifdef CONFIG_PAX_REFCOUNT
16940 + "jno 0f\n"
16941 + _ASM_ADD "%1,%0\n"
16942 + "int $4\n0:\n"
16943 + _ASM_EXTABLE(0b, 0b)
16944 +#endif
16945 +
16946 + : "+m" (l->a.counter)
16947 + : "ir" (i));
16948 +}
16949 +
16950 +static inline void local_sub_unchecked(long i, local_unchecked_t *l)
16951 +{
16952 + asm volatile(_ASM_SUB "%1,%0\n"
16953 : "+m" (l->a.counter)
16954 : "ir" (i));
16955 }
16956 @@ -52,7 +116,7 @@ static inline void local_sub(long i, local_t *l)
16957 */
16958 static inline int local_sub_and_test(long i, local_t *l)
16959 {
16960 - GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
16961 + GEN_BINARY_RMWcc(_ASM_SUB, _ASM_ADD, l->a.counter, "er", i, "%0", "e");
16962 }
16963
16964 /**
16965 @@ -65,7 +129,7 @@ static inline int local_sub_and_test(long i, local_t *l)
16966 */
16967 static inline int local_dec_and_test(local_t *l)
16968 {
16969 - GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
16970 + GEN_UNARY_RMWcc(_ASM_DEC, _ASM_INC, l->a.counter, "%0", "e");
16971 }
16972
16973 /**
16974 @@ -78,7 +142,7 @@ static inline int local_dec_and_test(local_t *l)
16975 */
16976 static inline int local_inc_and_test(local_t *l)
16977 {
16978 - GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
16979 + GEN_UNARY_RMWcc(_ASM_INC, _ASM_DEC, l->a.counter, "%0", "e");
16980 }
16981
16982 /**
16983 @@ -92,7 +156,7 @@ static inline int local_inc_and_test(local_t *l)
16984 */
16985 static inline int local_add_negative(long i, local_t *l)
16986 {
16987 - GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
16988 + GEN_BINARY_RMWcc(_ASM_ADD, _ASM_SUB, l->a.counter, "er", i, "%0", "s");
16989 }
16990
16991 /**
16992 @@ -105,6 +169,30 @@ static inline int local_add_negative(long i, local_t *l)
16993 static inline long local_add_return(long i, local_t *l)
16994 {
16995 long __i = i;
16996 + asm volatile(_ASM_XADD "%0, %1\n"
16997 +
16998 +#ifdef CONFIG_PAX_REFCOUNT
16999 + "jno 0f\n"
17000 + _ASM_MOV "%0,%1\n"
17001 + "int $4\n0:\n"
17002 + _ASM_EXTABLE(0b, 0b)
17003 +#endif
17004 +
17005 + : "+r" (i), "+m" (l->a.counter)
17006 + : : "memory");
17007 + return i + __i;
17008 +}
17009 +
17010 +/**
17011 + * local_add_return_unchecked - add and return
17012 + * @i: integer value to add
17013 + * @l: pointer to type local_unchecked_t
17014 + *
17015 + * Atomically adds @i to @l and returns @i + @l
17016 + */
17017 +static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
17018 +{
17019 + long __i = i;
17020 asm volatile(_ASM_XADD "%0, %1;"
17021 : "+r" (i), "+m" (l->a.counter)
17022 : : "memory");
17023 @@ -121,6 +209,8 @@ static inline long local_sub_return(long i, local_t *l)
17024
17025 #define local_cmpxchg(l, o, n) \
17026 (cmpxchg_local(&((l)->a.counter), (o), (n)))
17027 +#define local_cmpxchg_unchecked(l, o, n) \
17028 + (cmpxchg_local(&((l)->a.counter), (o), (n)))
17029 /* Always has a lock prefix */
17030 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
17031
17032 diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
17033 new file mode 100644
17034 index 0000000..2bfd3ba
17035 --- /dev/null
17036 +++ b/arch/x86/include/asm/mman.h
17037 @@ -0,0 +1,15 @@
17038 +#ifndef _X86_MMAN_H
17039 +#define _X86_MMAN_H
17040 +
17041 +#include <uapi/asm/mman.h>
17042 +
17043 +#ifdef __KERNEL__
17044 +#ifndef __ASSEMBLY__
17045 +#ifdef CONFIG_X86_32
17046 +#define arch_mmap_check i386_mmap_check
17047 +int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
17048 +#endif
17049 +#endif
17050 +#endif
17051 +
17052 +#endif /* X86_MMAN_H */
17053 diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
17054 index 5f55e69..e20bfb1 100644
17055 --- a/arch/x86/include/asm/mmu.h
17056 +++ b/arch/x86/include/asm/mmu.h
17057 @@ -9,7 +9,7 @@
17058 * we put the segment information here.
17059 */
17060 typedef struct {
17061 - void *ldt;
17062 + struct desc_struct *ldt;
17063 int size;
17064
17065 #ifdef CONFIG_X86_64
17066 @@ -18,7 +18,19 @@ typedef struct {
17067 #endif
17068
17069 struct mutex lock;
17070 - void *vdso;
17071 + unsigned long vdso;
17072 +
17073 +#ifdef CONFIG_X86_32
17074 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
17075 + unsigned long user_cs_base;
17076 + unsigned long user_cs_limit;
17077 +
17078 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17079 + cpumask_t cpu_user_cs_mask;
17080 +#endif
17081 +
17082 +#endif
17083 +#endif
17084 } mm_context_t;
17085
17086 #ifdef CONFIG_SMP
17087 diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
17088 index be12c53..4d24039 100644
17089 --- a/arch/x86/include/asm/mmu_context.h
17090 +++ b/arch/x86/include/asm/mmu_context.h
17091 @@ -24,6 +24,20 @@ void destroy_context(struct mm_struct *mm);
17092
17093 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
17094 {
17095 +
17096 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17097 + if (!(static_cpu_has(X86_FEATURE_PCID))) {
17098 + unsigned int i;
17099 + pgd_t *pgd;
17100 +
17101 + pax_open_kernel();
17102 + pgd = get_cpu_pgd(smp_processor_id(), kernel);
17103 + for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
17104 + set_pgd_batched(pgd+i, native_make_pgd(0));
17105 + pax_close_kernel();
17106 + }
17107 +#endif
17108 +
17109 #ifdef CONFIG_SMP
17110 if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
17111 this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
17112 @@ -34,16 +48,59 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17113 struct task_struct *tsk)
17114 {
17115 unsigned cpu = smp_processor_id();
17116 +#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17117 + int tlbstate = TLBSTATE_OK;
17118 +#endif
17119
17120 if (likely(prev != next)) {
17121 #ifdef CONFIG_SMP
17122 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17123 + tlbstate = this_cpu_read(cpu_tlbstate.state);
17124 +#endif
17125 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17126 this_cpu_write(cpu_tlbstate.active_mm, next);
17127 #endif
17128 cpumask_set_cpu(cpu, mm_cpumask(next));
17129
17130 /* Re-load page tables */
17131 +#ifdef CONFIG_PAX_PER_CPU_PGD
17132 + pax_open_kernel();
17133 +
17134 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17135 + if (static_cpu_has(X86_FEATURE_PCID))
17136 + __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17137 + else
17138 +#endif
17139 +
17140 + __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17141 + __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17142 + pax_close_kernel();
17143 + BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
17144 +
17145 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17146 + if (static_cpu_has(X86_FEATURE_PCID)) {
17147 + if (static_cpu_has(X86_FEATURE_INVPCID)) {
17148 + u64 descriptor[2];
17149 + descriptor[0] = PCID_USER;
17150 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17151 + if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17152 + descriptor[0] = PCID_KERNEL;
17153 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17154 + }
17155 + } else {
17156 + write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17157 + if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17158 + write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17159 + else
17160 + write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17161 + }
17162 + } else
17163 +#endif
17164 +
17165 + load_cr3(get_cpu_pgd(cpu, kernel));
17166 +#else
17167 load_cr3(next->pgd);
17168 +#endif
17169
17170 /* Stop flush ipis for the previous mm */
17171 cpumask_clear_cpu(cpu, mm_cpumask(prev));
17172 @@ -51,9 +108,67 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17173 /* Load the LDT, if the LDT is different: */
17174 if (unlikely(prev->context.ldt != next->context.ldt))
17175 load_LDT_nolock(&next->context);
17176 +
17177 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17178 + if (!(__supported_pte_mask & _PAGE_NX)) {
17179 + smp_mb__before_clear_bit();
17180 + cpu_clear(cpu, prev->context.cpu_user_cs_mask);
17181 + smp_mb__after_clear_bit();
17182 + cpu_set(cpu, next->context.cpu_user_cs_mask);
17183 + }
17184 +#endif
17185 +
17186 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17187 + if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
17188 + prev->context.user_cs_limit != next->context.user_cs_limit))
17189 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17190 +#ifdef CONFIG_SMP
17191 + else if (unlikely(tlbstate != TLBSTATE_OK))
17192 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17193 +#endif
17194 +#endif
17195 +
17196 }
17197 + else {
17198 +
17199 +#ifdef CONFIG_PAX_PER_CPU_PGD
17200 + pax_open_kernel();
17201 +
17202 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17203 + if (static_cpu_has(X86_FEATURE_PCID))
17204 + __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17205 + else
17206 +#endif
17207 +
17208 + __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17209 + __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17210 + pax_close_kernel();
17211 + BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
17212 +
17213 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17214 + if (static_cpu_has(X86_FEATURE_PCID)) {
17215 + if (static_cpu_has(X86_FEATURE_INVPCID)) {
17216 + u64 descriptor[2];
17217 + descriptor[0] = PCID_USER;
17218 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17219 + if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17220 + descriptor[0] = PCID_KERNEL;
17221 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17222 + }
17223 + } else {
17224 + write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17225 + if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17226 + write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17227 + else
17228 + write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17229 + }
17230 + } else
17231 +#endif
17232 +
17233 + load_cr3(get_cpu_pgd(cpu, kernel));
17234 +#endif
17235 +
17236 #ifdef CONFIG_SMP
17237 - else {
17238 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17239 BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
17240
17241 @@ -70,11 +185,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17242 * tlb flush IPI delivery. We must reload CR3
17243 * to make sure to use no freed page tables.
17244 */
17245 +
17246 +#ifndef CONFIG_PAX_PER_CPU_PGD
17247 load_cr3(next->pgd);
17248 +#endif
17249 +
17250 load_LDT_nolock(&next->context);
17251 +
17252 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
17253 + if (!(__supported_pte_mask & _PAGE_NX))
17254 + cpu_set(cpu, next->context.cpu_user_cs_mask);
17255 +#endif
17256 +
17257 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17258 +#ifdef CONFIG_PAX_PAGEEXEC
17259 + if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
17260 +#endif
17261 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17262 +#endif
17263 +
17264 }
17265 +#endif
17266 }
17267 -#endif
17268 }
17269
17270 #define activate_mm(prev, next) \
17271 diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
17272 index e3b7819..b257c64 100644
17273 --- a/arch/x86/include/asm/module.h
17274 +++ b/arch/x86/include/asm/module.h
17275 @@ -5,6 +5,7 @@
17276
17277 #ifdef CONFIG_X86_64
17278 /* X86_64 does not define MODULE_PROC_FAMILY */
17279 +#define MODULE_PROC_FAMILY ""
17280 #elif defined CONFIG_M486
17281 #define MODULE_PROC_FAMILY "486 "
17282 #elif defined CONFIG_M586
17283 @@ -57,8 +58,20 @@
17284 #error unknown processor family
17285 #endif
17286
17287 -#ifdef CONFIG_X86_32
17288 -# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
17289 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
17290 +#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
17291 +#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
17292 +#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
17293 +#else
17294 +#define MODULE_PAX_KERNEXEC ""
17295 #endif
17296
17297 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17298 +#define MODULE_PAX_UDEREF "UDEREF "
17299 +#else
17300 +#define MODULE_PAX_UDEREF ""
17301 +#endif
17302 +
17303 +#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
17304 +
17305 #endif /* _ASM_X86_MODULE_H */
17306 diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
17307 index 5f2fc44..106caa6 100644
17308 --- a/arch/x86/include/asm/nmi.h
17309 +++ b/arch/x86/include/asm/nmi.h
17310 @@ -36,26 +36,35 @@ enum {
17311
17312 typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
17313
17314 +struct nmiaction;
17315 +
17316 +struct nmiwork {
17317 + const struct nmiaction *action;
17318 + u64 max_duration;
17319 + struct irq_work irq_work;
17320 +};
17321 +
17322 struct nmiaction {
17323 struct list_head list;
17324 nmi_handler_t handler;
17325 - u64 max_duration;
17326 - struct irq_work irq_work;
17327 unsigned long flags;
17328 const char *name;
17329 -};
17330 + struct nmiwork *work;
17331 +} __do_const;
17332
17333 #define register_nmi_handler(t, fn, fg, n, init...) \
17334 ({ \
17335 - static struct nmiaction init fn##_na = { \
17336 + static struct nmiwork fn##_nw; \
17337 + static const struct nmiaction init fn##_na = { \
17338 .handler = (fn), \
17339 .name = (n), \
17340 .flags = (fg), \
17341 + .work = &fn##_nw, \
17342 }; \
17343 __register_nmi_handler((t), &fn##_na); \
17344 })
17345
17346 -int __register_nmi_handler(unsigned int, struct nmiaction *);
17347 +int __register_nmi_handler(unsigned int, const struct nmiaction *);
17348
17349 void unregister_nmi_handler(unsigned int, const char *);
17350
17351 diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
17352 index 775873d..04cd306 100644
17353 --- a/arch/x86/include/asm/page.h
17354 +++ b/arch/x86/include/asm/page.h
17355 @@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17356 __phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
17357
17358 #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
17359 +#define __early_va(x) ((void *)((unsigned long)(x)+__START_KERNEL_map - phys_base))
17360
17361 #define __boot_va(x) __va(x)
17362 #define __boot_pa(x) __pa(x)
17363 @@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17364 * virt_to_page(kaddr) returns a valid pointer if and only if
17365 * virt_addr_valid(kaddr) returns true.
17366 */
17367 -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17368 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
17369 extern bool __virt_addr_valid(unsigned long kaddr);
17370 #define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
17371
17372 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
17373 +#define virt_to_page(kaddr) \
17374 + ({ \
17375 + const void *__kaddr = (const void *)(kaddr); \
17376 + BUG_ON(!virt_addr_valid(__kaddr)); \
17377 + pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
17378 + })
17379 +#else
17380 +#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17381 +#endif
17382 +
17383 #endif /* __ASSEMBLY__ */
17384
17385 #include <asm-generic/memory_model.h>
17386 diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
17387 index 0f1ddee..e2fc3d1 100644
17388 --- a/arch/x86/include/asm/page_64.h
17389 +++ b/arch/x86/include/asm/page_64.h
17390 @@ -7,9 +7,9 @@
17391
17392 /* duplicated to the one in bootmem.h */
17393 extern unsigned long max_pfn;
17394 -extern unsigned long phys_base;
17395 +extern const unsigned long phys_base;
17396
17397 -static inline unsigned long __phys_addr_nodebug(unsigned long x)
17398 +static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
17399 {
17400 unsigned long y = x - __START_KERNEL_map;
17401
17402 diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
17403 index cd6e1610..70f4418 100644
17404 --- a/arch/x86/include/asm/paravirt.h
17405 +++ b/arch/x86/include/asm/paravirt.h
17406 @@ -560,7 +560,7 @@ static inline pmd_t __pmd(pmdval_t val)
17407 return (pmd_t) { ret };
17408 }
17409
17410 -static inline pmdval_t pmd_val(pmd_t pmd)
17411 +static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
17412 {
17413 pmdval_t ret;
17414
17415 @@ -626,6 +626,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
17416 val);
17417 }
17418
17419 +static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
17420 +{
17421 + pgdval_t val = native_pgd_val(pgd);
17422 +
17423 + if (sizeof(pgdval_t) > sizeof(long))
17424 + PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
17425 + val, (u64)val >> 32);
17426 + else
17427 + PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
17428 + val);
17429 +}
17430 +
17431 static inline void pgd_clear(pgd_t *pgdp)
17432 {
17433 set_pgd(pgdp, __pgd(0));
17434 @@ -710,6 +722,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
17435 pv_mmu_ops.set_fixmap(idx, phys, flags);
17436 }
17437
17438 +#ifdef CONFIG_PAX_KERNEXEC
17439 +static inline unsigned long pax_open_kernel(void)
17440 +{
17441 + return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
17442 +}
17443 +
17444 +static inline unsigned long pax_close_kernel(void)
17445 +{
17446 + return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
17447 +}
17448 +#else
17449 +static inline unsigned long pax_open_kernel(void) { return 0; }
17450 +static inline unsigned long pax_close_kernel(void) { return 0; }
17451 +#endif
17452 +
17453 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
17454
17455 static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
17456 @@ -906,7 +933,7 @@ extern void default_banner(void);
17457
17458 #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
17459 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
17460 -#define PARA_INDIRECT(addr) *%cs:addr
17461 +#define PARA_INDIRECT(addr) *%ss:addr
17462 #endif
17463
17464 #define INTERRUPT_RETURN \
17465 @@ -981,6 +1008,21 @@ extern void default_banner(void);
17466 PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
17467 CLBR_NONE, \
17468 jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
17469 +
17470 +#define GET_CR0_INTO_RDI \
17471 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
17472 + mov %rax,%rdi
17473 +
17474 +#define SET_RDI_INTO_CR0 \
17475 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
17476 +
17477 +#define GET_CR3_INTO_RDI \
17478 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \
17479 + mov %rax,%rdi
17480 +
17481 +#define SET_RDI_INTO_CR3 \
17482 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
17483 +
17484 #endif /* CONFIG_X86_32 */
17485
17486 #endif /* __ASSEMBLY__ */
17487 diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
17488 index 7549b8b..f0edfda 100644
17489 --- a/arch/x86/include/asm/paravirt_types.h
17490 +++ b/arch/x86/include/asm/paravirt_types.h
17491 @@ -84,7 +84,7 @@ struct pv_init_ops {
17492 */
17493 unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
17494 unsigned long addr, unsigned len);
17495 -};
17496 +} __no_const __no_randomize_layout;
17497
17498
17499 struct pv_lazy_ops {
17500 @@ -92,13 +92,13 @@ struct pv_lazy_ops {
17501 void (*enter)(void);
17502 void (*leave)(void);
17503 void (*flush)(void);
17504 -};
17505 +} __no_randomize_layout;
17506
17507 struct pv_time_ops {
17508 unsigned long long (*sched_clock)(void);
17509 unsigned long long (*steal_clock)(int cpu);
17510 unsigned long (*get_tsc_khz)(void);
17511 -};
17512 +} __no_const __no_randomize_layout;
17513
17514 struct pv_cpu_ops {
17515 /* hooks for various privileged instructions */
17516 @@ -192,7 +192,7 @@ struct pv_cpu_ops {
17517
17518 void (*start_context_switch)(struct task_struct *prev);
17519 void (*end_context_switch)(struct task_struct *next);
17520 -};
17521 +} __no_const __no_randomize_layout;
17522
17523 struct pv_irq_ops {
17524 /*
17525 @@ -215,7 +215,7 @@ struct pv_irq_ops {
17526 #ifdef CONFIG_X86_64
17527 void (*adjust_exception_frame)(void);
17528 #endif
17529 -};
17530 +} __no_randomize_layout;
17531
17532 struct pv_apic_ops {
17533 #ifdef CONFIG_X86_LOCAL_APIC
17534 @@ -223,7 +223,7 @@ struct pv_apic_ops {
17535 unsigned long start_eip,
17536 unsigned long start_esp);
17537 #endif
17538 -};
17539 +} __no_const __no_randomize_layout;
17540
17541 struct pv_mmu_ops {
17542 unsigned long (*read_cr2)(void);
17543 @@ -313,6 +313,7 @@ struct pv_mmu_ops {
17544 struct paravirt_callee_save make_pud;
17545
17546 void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
17547 + void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
17548 #endif /* PAGETABLE_LEVELS == 4 */
17549 #endif /* PAGETABLE_LEVELS >= 3 */
17550
17551 @@ -324,7 +325,13 @@ struct pv_mmu_ops {
17552 an mfn. We can tell which is which from the index. */
17553 void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
17554 phys_addr_t phys, pgprot_t flags);
17555 -};
17556 +
17557 +#ifdef CONFIG_PAX_KERNEXEC
17558 + unsigned long (*pax_open_kernel)(void);
17559 + unsigned long (*pax_close_kernel)(void);
17560 +#endif
17561 +
17562 +} __no_randomize_layout;
17563
17564 struct arch_spinlock;
17565 #ifdef CONFIG_SMP
17566 @@ -336,11 +343,14 @@ typedef u16 __ticket_t;
17567 struct pv_lock_ops {
17568 struct paravirt_callee_save lock_spinning;
17569 void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
17570 -};
17571 +} __no_randomize_layout;
17572
17573 /* This contains all the paravirt structures: we get a convenient
17574 * number for each function using the offset which we use to indicate
17575 - * what to patch. */
17576 + * what to patch.
17577 + * shouldn't be randomized due to the "NEAT TRICK" in paravirt.c
17578 + */
17579 +
17580 struct paravirt_patch_template {
17581 struct pv_init_ops pv_init_ops;
17582 struct pv_time_ops pv_time_ops;
17583 @@ -349,7 +359,7 @@ struct paravirt_patch_template {
17584 struct pv_apic_ops pv_apic_ops;
17585 struct pv_mmu_ops pv_mmu_ops;
17586 struct pv_lock_ops pv_lock_ops;
17587 -};
17588 +} __no_randomize_layout;
17589
17590 extern struct pv_info pv_info;
17591 extern struct pv_init_ops pv_init_ops;
17592 diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
17593 index c4412e9..90e88c5 100644
17594 --- a/arch/x86/include/asm/pgalloc.h
17595 +++ b/arch/x86/include/asm/pgalloc.h
17596 @@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
17597 pmd_t *pmd, pte_t *pte)
17598 {
17599 paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17600 + set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
17601 +}
17602 +
17603 +static inline void pmd_populate_user(struct mm_struct *mm,
17604 + pmd_t *pmd, pte_t *pte)
17605 +{
17606 + paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17607 set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
17608 }
17609
17610 @@ -108,12 +115,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
17611
17612 #ifdef CONFIG_X86_PAE
17613 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
17614 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
17615 +{
17616 + pud_populate(mm, pudp, pmd);
17617 +}
17618 #else /* !CONFIG_X86_PAE */
17619 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17620 {
17621 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17622 set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
17623 }
17624 +
17625 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17626 +{
17627 + paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17628 + set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
17629 +}
17630 #endif /* CONFIG_X86_PAE */
17631
17632 #if PAGETABLE_LEVELS > 3
17633 @@ -123,6 +140,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17634 set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
17635 }
17636
17637 +static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17638 +{
17639 + paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
17640 + set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
17641 +}
17642 +
17643 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
17644 {
17645 return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
17646 diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
17647 index 0d193e2..bf59aeb 100644
17648 --- a/arch/x86/include/asm/pgtable-2level.h
17649 +++ b/arch/x86/include/asm/pgtable-2level.h
17650 @@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
17651
17652 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17653 {
17654 + pax_open_kernel();
17655 *pmdp = pmd;
17656 + pax_close_kernel();
17657 }
17658
17659 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17660 diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
17661 index 81bb91b..9392125 100644
17662 --- a/arch/x86/include/asm/pgtable-3level.h
17663 +++ b/arch/x86/include/asm/pgtable-3level.h
17664 @@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17665
17666 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17667 {
17668 + pax_open_kernel();
17669 set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
17670 + pax_close_kernel();
17671 }
17672
17673 static inline void native_set_pud(pud_t *pudp, pud_t pud)
17674 {
17675 + pax_open_kernel();
17676 set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
17677 + pax_close_kernel();
17678 }
17679
17680 /*
17681 diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
17682 index b459ddf..b44081b 100644
17683 --- a/arch/x86/include/asm/pgtable.h
17684 +++ b/arch/x86/include/asm/pgtable.h
17685 @@ -46,6 +46,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17686
17687 #ifndef __PAGETABLE_PUD_FOLDED
17688 #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
17689 +#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd)
17690 #define pgd_clear(pgd) native_pgd_clear(pgd)
17691 #endif
17692
17693 @@ -83,12 +84,51 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17694
17695 #define arch_end_context_switch(prev) do {} while(0)
17696
17697 +#define pax_open_kernel() native_pax_open_kernel()
17698 +#define pax_close_kernel() native_pax_close_kernel()
17699 #endif /* CONFIG_PARAVIRT */
17700
17701 +#define __HAVE_ARCH_PAX_OPEN_KERNEL
17702 +#define __HAVE_ARCH_PAX_CLOSE_KERNEL
17703 +
17704 +#ifdef CONFIG_PAX_KERNEXEC
17705 +static inline unsigned long native_pax_open_kernel(void)
17706 +{
17707 + unsigned long cr0;
17708 +
17709 + preempt_disable();
17710 + barrier();
17711 + cr0 = read_cr0() ^ X86_CR0_WP;
17712 + BUG_ON(cr0 & X86_CR0_WP);
17713 + write_cr0(cr0);
17714 + return cr0 ^ X86_CR0_WP;
17715 +}
17716 +
17717 +static inline unsigned long native_pax_close_kernel(void)
17718 +{
17719 + unsigned long cr0;
17720 +
17721 + cr0 = read_cr0() ^ X86_CR0_WP;
17722 + BUG_ON(!(cr0 & X86_CR0_WP));
17723 + write_cr0(cr0);
17724 + barrier();
17725 + preempt_enable_no_resched();
17726 + return cr0 ^ X86_CR0_WP;
17727 +}
17728 +#else
17729 +static inline unsigned long native_pax_open_kernel(void) { return 0; }
17730 +static inline unsigned long native_pax_close_kernel(void) { return 0; }
17731 +#endif
17732 +
17733 /*
17734 * The following only work if pte_present() is true.
17735 * Undefined behaviour if not..
17736 */
17737 +static inline int pte_user(pte_t pte)
17738 +{
17739 + return pte_val(pte) & _PAGE_USER;
17740 +}
17741 +
17742 static inline int pte_dirty(pte_t pte)
17743 {
17744 return pte_flags(pte) & _PAGE_DIRTY;
17745 @@ -149,6 +189,11 @@ static inline unsigned long pud_pfn(pud_t pud)
17746 return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
17747 }
17748
17749 +static inline unsigned long pgd_pfn(pgd_t pgd)
17750 +{
17751 + return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
17752 +}
17753 +
17754 #define pte_page(pte) pfn_to_page(pte_pfn(pte))
17755
17756 static inline int pmd_large(pmd_t pte)
17757 @@ -202,9 +247,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
17758 return pte_clear_flags(pte, _PAGE_RW);
17759 }
17760
17761 +static inline pte_t pte_mkread(pte_t pte)
17762 +{
17763 + return __pte(pte_val(pte) | _PAGE_USER);
17764 +}
17765 +
17766 static inline pte_t pte_mkexec(pte_t pte)
17767 {
17768 - return pte_clear_flags(pte, _PAGE_NX);
17769 +#ifdef CONFIG_X86_PAE
17770 + if (__supported_pte_mask & _PAGE_NX)
17771 + return pte_clear_flags(pte, _PAGE_NX);
17772 + else
17773 +#endif
17774 + return pte_set_flags(pte, _PAGE_USER);
17775 +}
17776 +
17777 +static inline pte_t pte_exprotect(pte_t pte)
17778 +{
17779 +#ifdef CONFIG_X86_PAE
17780 + if (__supported_pte_mask & _PAGE_NX)
17781 + return pte_set_flags(pte, _PAGE_NX);
17782 + else
17783 +#endif
17784 + return pte_clear_flags(pte, _PAGE_USER);
17785 }
17786
17787 static inline pte_t pte_mkdirty(pte_t pte)
17788 @@ -431,6 +496,16 @@ pte_t *populate_extra_pte(unsigned long vaddr);
17789 #endif
17790
17791 #ifndef __ASSEMBLY__
17792 +
17793 +#ifdef CONFIG_PAX_PER_CPU_PGD
17794 +extern pgd_t cpu_pgd[NR_CPUS][2][PTRS_PER_PGD];
17795 +enum cpu_pgd_type {kernel = 0, user = 1};
17796 +static inline pgd_t *get_cpu_pgd(unsigned int cpu, enum cpu_pgd_type type)
17797 +{
17798 + return cpu_pgd[cpu][type];
17799 +}
17800 +#endif
17801 +
17802 #include <linux/mm_types.h>
17803 #include <linux/mmdebug.h>
17804 #include <linux/log2.h>
17805 @@ -571,7 +646,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
17806 * Currently stuck as a macro due to indirect forward reference to
17807 * linux/mmzone.h's __section_mem_map_addr() definition:
17808 */
17809 -#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
17810 +#define pud_page(pud) pfn_to_page((pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT)
17811
17812 /* Find an entry in the second-level page table.. */
17813 static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
17814 @@ -611,7 +686,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
17815 * Currently stuck as a macro due to indirect forward reference to
17816 * linux/mmzone.h's __section_mem_map_addr() definition:
17817 */
17818 -#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
17819 +#define pgd_page(pgd) pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
17820
17821 /* to find an entry in a page-table-directory. */
17822 static inline unsigned long pud_index(unsigned long address)
17823 @@ -626,7 +701,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
17824
17825 static inline int pgd_bad(pgd_t pgd)
17826 {
17827 - return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
17828 + return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
17829 }
17830
17831 static inline int pgd_none(pgd_t pgd)
17832 @@ -649,7 +724,12 @@ static inline int pgd_none(pgd_t pgd)
17833 * pgd_offset() returns a (pgd_t *)
17834 * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
17835 */
17836 -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
17837 +#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
17838 +
17839 +#ifdef CONFIG_PAX_PER_CPU_PGD
17840 +#define pgd_offset_cpu(cpu, type, address) (get_cpu_pgd(cpu, type) + pgd_index(address))
17841 +#endif
17842 +
17843 /*
17844 * a shortcut which implies the use of the kernel's pgd, instead
17845 * of a process's
17846 @@ -660,6 +740,23 @@ static inline int pgd_none(pgd_t pgd)
17847 #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
17848 #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
17849
17850 +#ifdef CONFIG_X86_32
17851 +#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY
17852 +#else
17853 +#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
17854 +#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
17855 +
17856 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17857 +#ifdef __ASSEMBLY__
17858 +#define pax_user_shadow_base pax_user_shadow_base(%rip)
17859 +#else
17860 +extern unsigned long pax_user_shadow_base;
17861 +extern pgdval_t clone_pgd_mask;
17862 +#endif
17863 +#endif
17864 +
17865 +#endif
17866 +
17867 #ifndef __ASSEMBLY__
17868
17869 extern int direct_gbpages;
17870 @@ -826,11 +923,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
17871 * dst and src can be on the same page, but the range must not overlap,
17872 * and must not cross a page boundary.
17873 */
17874 -static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
17875 +static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
17876 {
17877 - memcpy(dst, src, count * sizeof(pgd_t));
17878 + pax_open_kernel();
17879 + while (count--)
17880 + *dst++ = *src++;
17881 + pax_close_kernel();
17882 }
17883
17884 +#ifdef CONFIG_PAX_PER_CPU_PGD
17885 +extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
17886 +#endif
17887 +
17888 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17889 +extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
17890 +#else
17891 +static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
17892 +#endif
17893 +
17894 #define PTE_SHIFT ilog2(PTRS_PER_PTE)
17895 static inline int page_level_shift(enum pg_level level)
17896 {
17897 diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
17898 index 9ee3221..b979c6b 100644
17899 --- a/arch/x86/include/asm/pgtable_32.h
17900 +++ b/arch/x86/include/asm/pgtable_32.h
17901 @@ -25,9 +25,6 @@
17902 struct mm_struct;
17903 struct vm_area_struct;
17904
17905 -extern pgd_t swapper_pg_dir[1024];
17906 -extern pgd_t initial_page_table[1024];
17907 -
17908 static inline void pgtable_cache_init(void) { }
17909 static inline void check_pgt_cache(void) { }
17910 void paging_init(void);
17911 @@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
17912 # include <asm/pgtable-2level.h>
17913 #endif
17914
17915 +extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
17916 +extern pgd_t initial_page_table[PTRS_PER_PGD];
17917 +#ifdef CONFIG_X86_PAE
17918 +extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
17919 +#endif
17920 +
17921 #if defined(CONFIG_HIGHPTE)
17922 #define pte_offset_map(dir, address) \
17923 ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
17924 @@ -62,12 +65,17 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
17925 /* Clear a kernel PTE and flush it from the TLB */
17926 #define kpte_clear_flush(ptep, vaddr) \
17927 do { \
17928 + pax_open_kernel(); \
17929 pte_clear(&init_mm, (vaddr), (ptep)); \
17930 + pax_close_kernel(); \
17931 __flush_tlb_one((vaddr)); \
17932 } while (0)
17933
17934 #endif /* !__ASSEMBLY__ */
17935
17936 +#define HAVE_ARCH_UNMAPPED_AREA
17937 +#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
17938 +
17939 /*
17940 * kern_addr_valid() is (1) for FLATMEM and (0) for
17941 * SPARSEMEM and DISCONTIGMEM
17942 diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
17943 index ed5903b..c7fe163 100644
17944 --- a/arch/x86/include/asm/pgtable_32_types.h
17945 +++ b/arch/x86/include/asm/pgtable_32_types.h
17946 @@ -8,7 +8,7 @@
17947 */
17948 #ifdef CONFIG_X86_PAE
17949 # include <asm/pgtable-3level_types.h>
17950 -# define PMD_SIZE (1UL << PMD_SHIFT)
17951 +# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
17952 # define PMD_MASK (~(PMD_SIZE - 1))
17953 #else
17954 # include <asm/pgtable-2level_types.h>
17955 @@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
17956 # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
17957 #endif
17958
17959 +#ifdef CONFIG_PAX_KERNEXEC
17960 +#ifndef __ASSEMBLY__
17961 +extern unsigned char MODULES_EXEC_VADDR[];
17962 +extern unsigned char MODULES_EXEC_END[];
17963 +#endif
17964 +#include <asm/boot.h>
17965 +#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
17966 +#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
17967 +#else
17968 +#define ktla_ktva(addr) (addr)
17969 +#define ktva_ktla(addr) (addr)
17970 +#endif
17971 +
17972 #define MODULES_VADDR VMALLOC_START
17973 #define MODULES_END VMALLOC_END
17974 #define MODULES_LEN (MODULES_VADDR - MODULES_END)
17975 diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
17976 index e22c1db..23a625a 100644
17977 --- a/arch/x86/include/asm/pgtable_64.h
17978 +++ b/arch/x86/include/asm/pgtable_64.h
17979 @@ -16,10 +16,14 @@
17980
17981 extern pud_t level3_kernel_pgt[512];
17982 extern pud_t level3_ident_pgt[512];
17983 +extern pud_t level3_vmalloc_start_pgt[512];
17984 +extern pud_t level3_vmalloc_end_pgt[512];
17985 +extern pud_t level3_vmemmap_pgt[512];
17986 +extern pud_t level2_vmemmap_pgt[512];
17987 extern pmd_t level2_kernel_pgt[512];
17988 extern pmd_t level2_fixmap_pgt[512];
17989 -extern pmd_t level2_ident_pgt[512];
17990 -extern pgd_t init_level4_pgt[];
17991 +extern pmd_t level2_ident_pgt[512*2];
17992 +extern pgd_t init_level4_pgt[512];
17993
17994 #define swapper_pg_dir init_level4_pgt
17995
17996 @@ -61,7 +65,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17997
17998 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17999 {
18000 + pax_open_kernel();
18001 *pmdp = pmd;
18002 + pax_close_kernel();
18003 }
18004
18005 static inline void native_pmd_clear(pmd_t *pmd)
18006 @@ -97,7 +103,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
18007
18008 static inline void native_set_pud(pud_t *pudp, pud_t pud)
18009 {
18010 + pax_open_kernel();
18011 *pudp = pud;
18012 + pax_close_kernel();
18013 }
18014
18015 static inline void native_pud_clear(pud_t *pud)
18016 @@ -107,6 +115,13 @@ static inline void native_pud_clear(pud_t *pud)
18017
18018 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
18019 {
18020 + pax_open_kernel();
18021 + *pgdp = pgd;
18022 + pax_close_kernel();
18023 +}
18024 +
18025 +static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
18026 +{
18027 *pgdp = pgd;
18028 }
18029
18030 diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
18031 index c883bf7..19970b3 100644
18032 --- a/arch/x86/include/asm/pgtable_64_types.h
18033 +++ b/arch/x86/include/asm/pgtable_64_types.h
18034 @@ -61,6 +61,11 @@ typedef struct { pteval_t pte; } pte_t;
18035 #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
18036 #define MODULES_END _AC(0xffffffffff000000, UL)
18037 #define MODULES_LEN (MODULES_END - MODULES_VADDR)
18038 +#define MODULES_EXEC_VADDR MODULES_VADDR
18039 +#define MODULES_EXEC_END MODULES_END
18040 +
18041 +#define ktla_ktva(addr) (addr)
18042 +#define ktva_ktla(addr) (addr)
18043
18044 #define EARLY_DYNAMIC_PAGE_TABLES 64
18045
18046 diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
18047 index eb3d449..8d95316 100644
18048 --- a/arch/x86/include/asm/pgtable_types.h
18049 +++ b/arch/x86/include/asm/pgtable_types.h
18050 @@ -16,13 +16,12 @@
18051 #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
18052 #define _PAGE_BIT_PAT 7 /* on 4KB pages */
18053 #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
18054 -#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
18055 +#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */
18056 #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
18057 #define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */
18058 #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
18059 -#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
18060 -#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
18061 -#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */
18062 +#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL
18063 +#define _PAGE_BIT_SPLITTING _PAGE_BIT_SPECIAL /* only valid on a PSE pmd */
18064 #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
18065
18066 /* If _PAGE_BIT_PRESENT is clear, we use these: */
18067 @@ -40,7 +39,6 @@
18068 #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
18069 #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
18070 #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
18071 -#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
18072 #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
18073 #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
18074 #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
18075 @@ -87,8 +85,10 @@
18076
18077 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
18078 #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
18079 -#else
18080 +#elif defined(CONFIG_KMEMCHECK) || defined(CONFIG_MEM_SOFT_DIRTY)
18081 #define _PAGE_NX (_AT(pteval_t, 0))
18082 +#else
18083 +#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
18084 #endif
18085
18086 #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
18087 @@ -147,6 +147,9 @@
18088 #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
18089 _PAGE_ACCESSED)
18090
18091 +#define PAGE_READONLY_NOEXEC PAGE_READONLY
18092 +#define PAGE_SHARED_NOEXEC PAGE_SHARED
18093 +
18094 #define __PAGE_KERNEL_EXEC \
18095 (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
18096 #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
18097 @@ -157,7 +160,7 @@
18098 #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
18099 #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
18100 #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
18101 -#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
18102 +#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER)
18103 #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
18104 #define __PAGE_KERNEL_VVAR_NOCACHE (__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT)
18105 #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
18106 @@ -214,7 +217,7 @@
18107 #ifdef CONFIG_X86_64
18108 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
18109 #else
18110 -#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
18111 +#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18112 #define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18113 #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
18114 #endif
18115 @@ -253,7 +256,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
18116 {
18117 return native_pgd_val(pgd) & PTE_FLAGS_MASK;
18118 }
18119 +#endif
18120
18121 +#if PAGETABLE_LEVELS == 3
18122 +#include <asm-generic/pgtable-nopud.h>
18123 +#endif
18124 +
18125 +#if PAGETABLE_LEVELS == 2
18126 +#include <asm-generic/pgtable-nopmd.h>
18127 +#endif
18128 +
18129 +#ifndef __ASSEMBLY__
18130 #if PAGETABLE_LEVELS > 3
18131 typedef struct { pudval_t pud; } pud_t;
18132
18133 @@ -267,8 +280,6 @@ static inline pudval_t native_pud_val(pud_t pud)
18134 return pud.pud;
18135 }
18136 #else
18137 -#include <asm-generic/pgtable-nopud.h>
18138 -
18139 static inline pudval_t native_pud_val(pud_t pud)
18140 {
18141 return native_pgd_val(pud.pgd);
18142 @@ -288,8 +299,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
18143 return pmd.pmd;
18144 }
18145 #else
18146 -#include <asm-generic/pgtable-nopmd.h>
18147 -
18148 static inline pmdval_t native_pmd_val(pmd_t pmd)
18149 {
18150 return native_pgd_val(pmd.pud.pgd);
18151 @@ -329,7 +338,6 @@ typedef struct page *pgtable_t;
18152
18153 extern pteval_t __supported_pte_mask;
18154 extern void set_nx(void);
18155 -extern int nx_enabled;
18156
18157 #define pgprot_writecombine pgprot_writecombine
18158 extern pgprot_t pgprot_writecombine(pgprot_t prot);
18159 diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
18160 index 7024c12..71c46b9 100644
18161 --- a/arch/x86/include/asm/preempt.h
18162 +++ b/arch/x86/include/asm/preempt.h
18163 @@ -87,7 +87,7 @@ static __always_inline void __preempt_count_sub(int val)
18164 */
18165 static __always_inline bool __preempt_count_dec_and_test(void)
18166 {
18167 - GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
18168 + GEN_UNARY_RMWcc("decl", "incl", __preempt_count, __percpu_arg(0), "e");
18169 }
18170
18171 /*
18172 diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
18173 index a4ea023..33aa874 100644
18174 --- a/arch/x86/include/asm/processor.h
18175 +++ b/arch/x86/include/asm/processor.h
18176 @@ -128,7 +128,7 @@ struct cpuinfo_x86 {
18177 /* Index into per_cpu list: */
18178 u16 cpu_index;
18179 u32 microcode;
18180 -} __attribute__((__aligned__(SMP_CACHE_BYTES)));
18181 +} __attribute__((__aligned__(SMP_CACHE_BYTES))) __randomize_layout;
18182
18183 #define X86_VENDOR_INTEL 0
18184 #define X86_VENDOR_CYRIX 1
18185 @@ -199,9 +199,21 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
18186 : "memory");
18187 }
18188
18189 +/* invpcid (%rdx),%rax */
18190 +#define __ASM_INVPCID ".byte 0x66,0x0f,0x38,0x82,0x02"
18191 +
18192 +#define INVPCID_SINGLE_ADDRESS 0UL
18193 +#define INVPCID_SINGLE_CONTEXT 1UL
18194 +#define INVPCID_ALL_GLOBAL 2UL
18195 +#define INVPCID_ALL_MONGLOBAL 3UL
18196 +
18197 +#define PCID_KERNEL 0UL
18198 +#define PCID_USER 1UL
18199 +#define PCID_NOFLUSH (1UL << 63)
18200 +
18201 static inline void load_cr3(pgd_t *pgdir)
18202 {
18203 - write_cr3(__pa(pgdir));
18204 + write_cr3(__pa(pgdir) | PCID_KERNEL);
18205 }
18206
18207 #ifdef CONFIG_X86_32
18208 @@ -283,7 +295,7 @@ struct tss_struct {
18209
18210 } ____cacheline_aligned;
18211
18212 -DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
18213 +extern struct tss_struct init_tss[NR_CPUS];
18214
18215 /*
18216 * Save the original ist values for checking stack pointers during debugging
18217 @@ -479,6 +491,7 @@ struct thread_struct {
18218 unsigned short ds;
18219 unsigned short fsindex;
18220 unsigned short gsindex;
18221 + unsigned short ss;
18222 #endif
18223 #ifdef CONFIG_X86_32
18224 unsigned long ip;
18225 @@ -588,29 +601,8 @@ static inline void load_sp0(struct tss_struct *tss,
18226 extern unsigned long mmu_cr4_features;
18227 extern u32 *trampoline_cr4_features;
18228
18229 -static inline void set_in_cr4(unsigned long mask)
18230 -{
18231 - unsigned long cr4;
18232 -
18233 - mmu_cr4_features |= mask;
18234 - if (trampoline_cr4_features)
18235 - *trampoline_cr4_features = mmu_cr4_features;
18236 - cr4 = read_cr4();
18237 - cr4 |= mask;
18238 - write_cr4(cr4);
18239 -}
18240 -
18241 -static inline void clear_in_cr4(unsigned long mask)
18242 -{
18243 - unsigned long cr4;
18244 -
18245 - mmu_cr4_features &= ~mask;
18246 - if (trampoline_cr4_features)
18247 - *trampoline_cr4_features = mmu_cr4_features;
18248 - cr4 = read_cr4();
18249 - cr4 &= ~mask;
18250 - write_cr4(cr4);
18251 -}
18252 +extern void set_in_cr4(unsigned long mask);
18253 +extern void clear_in_cr4(unsigned long mask);
18254
18255 typedef struct {
18256 unsigned long seg;
18257 @@ -836,11 +828,18 @@ static inline void spin_lock_prefetch(const void *x)
18258 */
18259 #define TASK_SIZE PAGE_OFFSET
18260 #define TASK_SIZE_MAX TASK_SIZE
18261 +
18262 +#ifdef CONFIG_PAX_SEGMEXEC
18263 +#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
18264 +#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
18265 +#else
18266 #define STACK_TOP TASK_SIZE
18267 -#define STACK_TOP_MAX STACK_TOP
18268 +#endif
18269 +
18270 +#define STACK_TOP_MAX TASK_SIZE
18271
18272 #define INIT_THREAD { \
18273 - .sp0 = sizeof(init_stack) + (long)&init_stack, \
18274 + .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18275 .vm86_info = NULL, \
18276 .sysenter_cs = __KERNEL_CS, \
18277 .io_bitmap_ptr = NULL, \
18278 @@ -854,7 +853,7 @@ static inline void spin_lock_prefetch(const void *x)
18279 */
18280 #define INIT_TSS { \
18281 .x86_tss = { \
18282 - .sp0 = sizeof(init_stack) + (long)&init_stack, \
18283 + .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18284 .ss0 = __KERNEL_DS, \
18285 .ss1 = __KERNEL_CS, \
18286 .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
18287 @@ -865,11 +864,7 @@ static inline void spin_lock_prefetch(const void *x)
18288 extern unsigned long thread_saved_pc(struct task_struct *tsk);
18289
18290 #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
18291 -#define KSTK_TOP(info) \
18292 -({ \
18293 - unsigned long *__ptr = (unsigned long *)(info); \
18294 - (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
18295 -})
18296 +#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0)
18297
18298 /*
18299 * The below -8 is to reserve 8 bytes on top of the ring0 stack.
18300 @@ -884,7 +879,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18301 #define task_pt_regs(task) \
18302 ({ \
18303 struct pt_regs *__regs__; \
18304 - __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
18305 + __regs__ = (struct pt_regs *)((task)->thread.sp0); \
18306 __regs__ - 1; \
18307 })
18308
18309 @@ -894,13 +889,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18310 /*
18311 * User space process size. 47bits minus one guard page.
18312 */
18313 -#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
18314 +#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
18315
18316 /* This decides where the kernel will search for a free chunk of vm
18317 * space during mmap's.
18318 */
18319 #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
18320 - 0xc0000000 : 0xFFFFe000)
18321 + 0xc0000000 : 0xFFFFf000)
18322
18323 #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
18324 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
18325 @@ -911,11 +906,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18326 #define STACK_TOP_MAX TASK_SIZE_MAX
18327
18328 #define INIT_THREAD { \
18329 - .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18330 + .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18331 }
18332
18333 #define INIT_TSS { \
18334 - .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18335 + .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18336 }
18337
18338 /*
18339 @@ -943,6 +938,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
18340 */
18341 #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
18342
18343 +#ifdef CONFIG_PAX_SEGMEXEC
18344 +#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
18345 +#endif
18346 +
18347 #define KSTK_EIP(task) (task_pt_regs(task)->ip)
18348
18349 /* Get/set a process' ability to use the timestamp counter instruction */
18350 @@ -969,7 +968,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
18351 return 0;
18352 }
18353
18354 -extern unsigned long arch_align_stack(unsigned long sp);
18355 +#define arch_align_stack(x) ((x) & ~0xfUL)
18356 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
18357
18358 void default_idle(void);
18359 @@ -979,6 +978,6 @@ bool xen_set_default_idle(void);
18360 #define xen_set_default_idle 0
18361 #endif
18362
18363 -void stop_this_cpu(void *dummy);
18364 +void stop_this_cpu(void *dummy) __noreturn;
18365 void df_debug(struct pt_regs *regs, long error_code);
18366 #endif /* _ASM_X86_PROCESSOR_H */
18367 diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
18368 index 6205f0c..b31a4a4 100644
18369 --- a/arch/x86/include/asm/ptrace.h
18370 +++ b/arch/x86/include/asm/ptrace.h
18371 @@ -84,28 +84,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
18372 }
18373
18374 /*
18375 - * user_mode_vm(regs) determines whether a register set came from user mode.
18376 + * user_mode(regs) determines whether a register set came from user mode.
18377 * This is true if V8086 mode was enabled OR if the register set was from
18378 * protected mode with RPL-3 CS value. This tricky test checks that with
18379 * one comparison. Many places in the kernel can bypass this full check
18380 - * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
18381 + * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
18382 + * be used.
18383 */
18384 -static inline int user_mode(struct pt_regs *regs)
18385 +static inline int user_mode_novm(struct pt_regs *regs)
18386 {
18387 #ifdef CONFIG_X86_32
18388 return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
18389 #else
18390 - return !!(regs->cs & 3);
18391 + return !!(regs->cs & SEGMENT_RPL_MASK);
18392 #endif
18393 }
18394
18395 -static inline int user_mode_vm(struct pt_regs *regs)
18396 +static inline int user_mode(struct pt_regs *regs)
18397 {
18398 #ifdef CONFIG_X86_32
18399 return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
18400 USER_RPL;
18401 #else
18402 - return user_mode(regs);
18403 + return user_mode_novm(regs);
18404 #endif
18405 }
18406
18407 @@ -121,15 +122,16 @@ static inline int v8086_mode(struct pt_regs *regs)
18408 #ifdef CONFIG_X86_64
18409 static inline bool user_64bit_mode(struct pt_regs *regs)
18410 {
18411 + unsigned long cs = regs->cs & 0xffff;
18412 #ifndef CONFIG_PARAVIRT
18413 /*
18414 * On non-paravirt systems, this is the only long mode CPL 3
18415 * selector. We do not allow long mode selectors in the LDT.
18416 */
18417 - return regs->cs == __USER_CS;
18418 + return cs == __USER_CS;
18419 #else
18420 /* Headers are too twisted for this to go in paravirt.h. */
18421 - return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
18422 + return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
18423 #endif
18424 }
18425
18426 @@ -180,9 +182,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
18427 * Traps from the kernel do not save sp and ss.
18428 * Use the helper function to retrieve sp.
18429 */
18430 - if (offset == offsetof(struct pt_regs, sp) &&
18431 - regs->cs == __KERNEL_CS)
18432 - return kernel_stack_pointer(regs);
18433 + if (offset == offsetof(struct pt_regs, sp)) {
18434 + unsigned long cs = regs->cs & 0xffff;
18435 + if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
18436 + return kernel_stack_pointer(regs);
18437 + }
18438 #endif
18439 return *(unsigned long *)((unsigned long)regs + offset);
18440 }
18441 diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
18442 index 9c6b890..5305f53 100644
18443 --- a/arch/x86/include/asm/realmode.h
18444 +++ b/arch/x86/include/asm/realmode.h
18445 @@ -22,16 +22,14 @@ struct real_mode_header {
18446 #endif
18447 /* APM/BIOS reboot */
18448 u32 machine_real_restart_asm;
18449 -#ifdef CONFIG_X86_64
18450 u32 machine_real_restart_seg;
18451 -#endif
18452 };
18453
18454 /* This must match data at trampoline_32/64.S */
18455 struct trampoline_header {
18456 #ifdef CONFIG_X86_32
18457 u32 start;
18458 - u16 gdt_pad;
18459 + u16 boot_cs;
18460 u16 gdt_limit;
18461 u32 gdt_base;
18462 #else
18463 diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
18464 index a82c4f1..ac45053 100644
18465 --- a/arch/x86/include/asm/reboot.h
18466 +++ b/arch/x86/include/asm/reboot.h
18467 @@ -6,13 +6,13 @@
18468 struct pt_regs;
18469
18470 struct machine_ops {
18471 - void (*restart)(char *cmd);
18472 - void (*halt)(void);
18473 - void (*power_off)(void);
18474 + void (* __noreturn restart)(char *cmd);
18475 + void (* __noreturn halt)(void);
18476 + void (* __noreturn power_off)(void);
18477 void (*shutdown)(void);
18478 void (*crash_shutdown)(struct pt_regs *);
18479 - void (*emergency_restart)(void);
18480 -};
18481 + void (* __noreturn emergency_restart)(void);
18482 +} __no_const;
18483
18484 extern struct machine_ops machine_ops;
18485
18486 diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
18487 index 8f7866a..e442f20 100644
18488 --- a/arch/x86/include/asm/rmwcc.h
18489 +++ b/arch/x86/include/asm/rmwcc.h
18490 @@ -3,7 +3,34 @@
18491
18492 #ifdef CC_HAVE_ASM_GOTO
18493
18494 -#define __GEN_RMWcc(fullop, var, cc, ...) \
18495 +#ifdef CONFIG_PAX_REFCOUNT
18496 +#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18497 +do { \
18498 + asm_volatile_goto (fullop \
18499 + ";jno 0f\n" \
18500 + fullantiop \
18501 + ";int $4\n0:\n" \
18502 + _ASM_EXTABLE(0b, 0b) \
18503 + ";j" cc " %l[cc_label]" \
18504 + : : "m" (var), ## __VA_ARGS__ \
18505 + : "memory" : cc_label); \
18506 + return 0; \
18507 +cc_label: \
18508 + return 1; \
18509 +} while (0)
18510 +#else
18511 +#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18512 +do { \
18513 + asm_volatile_goto (fullop ";j" cc " %l[cc_label]" \
18514 + : : "m" (var), ## __VA_ARGS__ \
18515 + : "memory" : cc_label); \
18516 + return 0; \
18517 +cc_label: \
18518 + return 1; \
18519 +} while (0)
18520 +#endif
18521 +
18522 +#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18523 do { \
18524 asm_volatile_goto (fullop "; j" cc " %l[cc_label]" \
18525 : : "m" (var), ## __VA_ARGS__ \
18526 @@ -13,15 +40,46 @@ cc_label: \
18527 return 1; \
18528 } while (0)
18529
18530 -#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18531 - __GEN_RMWcc(op " " arg0, var, cc)
18532 +#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18533 + __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18534
18535 -#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18536 - __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
18537 +#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18538 + __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18539 +
18540 +#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18541 + __GEN_RMWcc(op " %1, " arg0, antiop " %1, " arg0, var, cc, vcon (val))
18542 +
18543 +#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18544 + __GEN_RMWcc_unchecked(op " %1, " arg0, var, cc, vcon (val))
18545
18546 #else /* !CC_HAVE_ASM_GOTO */
18547
18548 -#define __GEN_RMWcc(fullop, var, cc, ...) \
18549 +#ifdef CONFIG_PAX_REFCOUNT
18550 +#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18551 +do { \
18552 + char c; \
18553 + asm volatile (fullop \
18554 + ";jno 0f\n" \
18555 + fullantiop \
18556 + ";int $4\n0:\n" \
18557 + _ASM_EXTABLE(0b, 0b) \
18558 + "; set" cc " %1" \
18559 + : "+m" (var), "=qm" (c) \
18560 + : __VA_ARGS__ : "memory"); \
18561 + return c != 0; \
18562 +} while (0)
18563 +#else
18564 +#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18565 +do { \
18566 + char c; \
18567 + asm volatile (fullop "; set" cc " %1" \
18568 + : "+m" (var), "=qm" (c) \
18569 + : __VA_ARGS__ : "memory"); \
18570 + return c != 0; \
18571 +} while (0)
18572 +#endif
18573 +
18574 +#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18575 do { \
18576 char c; \
18577 asm volatile (fullop "; set" cc " %1" \
18578 @@ -30,11 +88,17 @@ do { \
18579 return c != 0; \
18580 } while (0)
18581
18582 -#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18583 - __GEN_RMWcc(op " " arg0, var, cc)
18584 +#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18585 + __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18586 +
18587 +#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18588 + __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18589 +
18590 +#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18591 + __GEN_RMWcc(op " %2, " arg0, antiop " %2, " arg0, var, cc, vcon (val))
18592
18593 -#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18594 - __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
18595 +#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18596 + __GEN_RMWcc_unchecked(op " %2, " arg0, var, cc, vcon (val))
18597
18598 #endif /* CC_HAVE_ASM_GOTO */
18599
18600 diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
18601 index cad82c9..2e5c5c1 100644
18602 --- a/arch/x86/include/asm/rwsem.h
18603 +++ b/arch/x86/include/asm/rwsem.h
18604 @@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
18605 {
18606 asm volatile("# beginning down_read\n\t"
18607 LOCK_PREFIX _ASM_INC "(%1)\n\t"
18608 +
18609 +#ifdef CONFIG_PAX_REFCOUNT
18610 + "jno 0f\n"
18611 + LOCK_PREFIX _ASM_DEC "(%1)\n"
18612 + "int $4\n0:\n"
18613 + _ASM_EXTABLE(0b, 0b)
18614 +#endif
18615 +
18616 /* adds 0x00000001 */
18617 " jns 1f\n"
18618 " call call_rwsem_down_read_failed\n"
18619 @@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
18620 "1:\n\t"
18621 " mov %1,%2\n\t"
18622 " add %3,%2\n\t"
18623 +
18624 +#ifdef CONFIG_PAX_REFCOUNT
18625 + "jno 0f\n"
18626 + "sub %3,%2\n"
18627 + "int $4\n0:\n"
18628 + _ASM_EXTABLE(0b, 0b)
18629 +#endif
18630 +
18631 " jle 2f\n\t"
18632 LOCK_PREFIX " cmpxchg %2,%0\n\t"
18633 " jnz 1b\n\t"
18634 @@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
18635 long tmp;
18636 asm volatile("# beginning down_write\n\t"
18637 LOCK_PREFIX " xadd %1,(%2)\n\t"
18638 +
18639 +#ifdef CONFIG_PAX_REFCOUNT
18640 + "jno 0f\n"
18641 + "mov %1,(%2)\n"
18642 + "int $4\n0:\n"
18643 + _ASM_EXTABLE(0b, 0b)
18644 +#endif
18645 +
18646 /* adds 0xffff0001, returns the old value */
18647 " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
18648 /* was the active mask 0 before? */
18649 @@ -155,6 +179,14 @@ static inline void __up_read(struct rw_semaphore *sem)
18650 long tmp;
18651 asm volatile("# beginning __up_read\n\t"
18652 LOCK_PREFIX " xadd %1,(%2)\n\t"
18653 +
18654 +#ifdef CONFIG_PAX_REFCOUNT
18655 + "jno 0f\n"
18656 + "mov %1,(%2)\n"
18657 + "int $4\n0:\n"
18658 + _ASM_EXTABLE(0b, 0b)
18659 +#endif
18660 +
18661 /* subtracts 1, returns the old value */
18662 " jns 1f\n\t"
18663 " call call_rwsem_wake\n" /* expects old value in %edx */
18664 @@ -173,6 +205,14 @@ static inline void __up_write(struct rw_semaphore *sem)
18665 long tmp;
18666 asm volatile("# beginning __up_write\n\t"
18667 LOCK_PREFIX " xadd %1,(%2)\n\t"
18668 +
18669 +#ifdef CONFIG_PAX_REFCOUNT
18670 + "jno 0f\n"
18671 + "mov %1,(%2)\n"
18672 + "int $4\n0:\n"
18673 + _ASM_EXTABLE(0b, 0b)
18674 +#endif
18675 +
18676 /* subtracts 0xffff0001, returns the old value */
18677 " jns 1f\n\t"
18678 " call call_rwsem_wake\n" /* expects old value in %edx */
18679 @@ -190,6 +230,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18680 {
18681 asm volatile("# beginning __downgrade_write\n\t"
18682 LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
18683 +
18684 +#ifdef CONFIG_PAX_REFCOUNT
18685 + "jno 0f\n"
18686 + LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
18687 + "int $4\n0:\n"
18688 + _ASM_EXTABLE(0b, 0b)
18689 +#endif
18690 +
18691 /*
18692 * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
18693 * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
18694 @@ -208,7 +256,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18695 */
18696 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18697 {
18698 - asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
18699 + asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
18700 +
18701 +#ifdef CONFIG_PAX_REFCOUNT
18702 + "jno 0f\n"
18703 + LOCK_PREFIX _ASM_SUB "%1,%0\n"
18704 + "int $4\n0:\n"
18705 + _ASM_EXTABLE(0b, 0b)
18706 +#endif
18707 +
18708 : "+m" (sem->count)
18709 : "er" (delta));
18710 }
18711 @@ -218,7 +274,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18712 */
18713 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
18714 {
18715 - return delta + xadd(&sem->count, delta);
18716 + return delta + xadd_check_overflow(&sem->count, delta);
18717 }
18718
18719 #endif /* __KERNEL__ */
18720 diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
18721 index 6f1c3a8..7744f19 100644
18722 --- a/arch/x86/include/asm/segment.h
18723 +++ b/arch/x86/include/asm/segment.h
18724 @@ -64,10 +64,15 @@
18725 * 26 - ESPFIX small SS
18726 * 27 - per-cpu [ offset to per-cpu data area ]
18727 * 28 - stack_canary-20 [ for stack protector ]
18728 - * 29 - unused
18729 - * 30 - unused
18730 + * 29 - PCI BIOS CS
18731 + * 30 - PCI BIOS DS
18732 * 31 - TSS for double fault handler
18733 */
18734 +#define GDT_ENTRY_KERNEXEC_EFI_CS (1)
18735 +#define GDT_ENTRY_KERNEXEC_EFI_DS (2)
18736 +#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8)
18737 +#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8)
18738 +
18739 #define GDT_ENTRY_TLS_MIN 6
18740 #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
18741
18742 @@ -79,6 +84,8 @@
18743
18744 #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0)
18745
18746 +#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4)
18747 +
18748 #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1)
18749
18750 #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4)
18751 @@ -104,6 +111,12 @@
18752 #define __KERNEL_STACK_CANARY 0
18753 #endif
18754
18755 +#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17)
18756 +#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
18757 +
18758 +#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18)
18759 +#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
18760 +
18761 #define GDT_ENTRY_DOUBLEFAULT_TSS 31
18762
18763 /*
18764 @@ -141,7 +154,7 @@
18765 */
18766
18767 /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
18768 -#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
18769 +#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
18770
18771
18772 #else
18773 @@ -165,6 +178,8 @@
18774 #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
18775 #define __USER32_DS __USER_DS
18776
18777 +#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
18778 +
18779 #define GDT_ENTRY_TSS 8 /* needs two entries */
18780 #define GDT_ENTRY_LDT 10 /* needs two entries */
18781 #define GDT_ENTRY_TLS_MIN 12
18782 @@ -173,6 +188,8 @@
18783 #define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */
18784 #define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3)
18785
18786 +#define GDT_ENTRY_UDEREF_KERNEL_DS 16
18787 +
18788 /* TLS indexes for 64bit - hardcoded in arch_prctl */
18789 #define FS_TLS 0
18790 #define GS_TLS 1
18791 @@ -180,12 +197,14 @@
18792 #define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
18793 #define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
18794
18795 -#define GDT_ENTRIES 16
18796 +#define GDT_ENTRIES 17
18797
18798 #endif
18799
18800 #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
18801 +#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
18802 #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
18803 +#define __UDEREF_KERNEL_DS (GDT_ENTRY_UDEREF_KERNEL_DS*8)
18804 #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3)
18805 #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3)
18806 #ifndef CONFIG_PARAVIRT
18807 @@ -268,7 +287,7 @@ static inline unsigned long get_limit(unsigned long segment)
18808 {
18809 unsigned long __limit;
18810 asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
18811 - return __limit + 1;
18812 + return __limit;
18813 }
18814
18815 #endif /* !__ASSEMBLY__ */
18816 diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
18817 index 8d3120f..352b440 100644
18818 --- a/arch/x86/include/asm/smap.h
18819 +++ b/arch/x86/include/asm/smap.h
18820 @@ -25,11 +25,40 @@
18821
18822 #include <asm/alternative-asm.h>
18823
18824 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
18825 +#define ASM_PAX_OPEN_USERLAND \
18826 + 661: jmp 663f; \
18827 + .pushsection .altinstr_replacement, "a" ; \
18828 + 662: pushq %rax; nop; \
18829 + .popsection ; \
18830 + .pushsection .altinstructions, "a" ; \
18831 + altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
18832 + .popsection ; \
18833 + call __pax_open_userland; \
18834 + popq %rax; \
18835 + 663:
18836 +
18837 +#define ASM_PAX_CLOSE_USERLAND \
18838 + 661: jmp 663f; \
18839 + .pushsection .altinstr_replacement, "a" ; \
18840 + 662: pushq %rax; nop; \
18841 + .popsection; \
18842 + .pushsection .altinstructions, "a" ; \
18843 + altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
18844 + .popsection; \
18845 + call __pax_close_userland; \
18846 + popq %rax; \
18847 + 663:
18848 +#else
18849 +#define ASM_PAX_OPEN_USERLAND
18850 +#define ASM_PAX_CLOSE_USERLAND
18851 +#endif
18852 +
18853 #ifdef CONFIG_X86_SMAP
18854
18855 #define ASM_CLAC \
18856 661: ASM_NOP3 ; \
18857 - .pushsection .altinstr_replacement, "ax" ; \
18858 + .pushsection .altinstr_replacement, "a" ; \
18859 662: __ASM_CLAC ; \
18860 .popsection ; \
18861 .pushsection .altinstructions, "a" ; \
18862 @@ -38,7 +67,7 @@
18863
18864 #define ASM_STAC \
18865 661: ASM_NOP3 ; \
18866 - .pushsection .altinstr_replacement, "ax" ; \
18867 + .pushsection .altinstr_replacement, "a" ; \
18868 662: __ASM_STAC ; \
18869 .popsection ; \
18870 .pushsection .altinstructions, "a" ; \
18871 @@ -56,6 +85,37 @@
18872
18873 #include <asm/alternative.h>
18874
18875 +#define __HAVE_ARCH_PAX_OPEN_USERLAND
18876 +#define __HAVE_ARCH_PAX_CLOSE_USERLAND
18877 +
18878 +extern void __pax_open_userland(void);
18879 +static __always_inline unsigned long pax_open_userland(void)
18880 +{
18881 +
18882 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
18883 + asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[open]", X86_FEATURE_STRONGUDEREF)
18884 + :
18885 + : [open] "i" (__pax_open_userland)
18886 + : "memory", "rax");
18887 +#endif
18888 +
18889 + return 0;
18890 +}
18891 +
18892 +extern void __pax_close_userland(void);
18893 +static __always_inline unsigned long pax_close_userland(void)
18894 +{
18895 +
18896 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
18897 + asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[close]", X86_FEATURE_STRONGUDEREF)
18898 + :
18899 + : [close] "i" (__pax_close_userland)
18900 + : "memory", "rax");
18901 +#endif
18902 +
18903 + return 0;
18904 +}
18905 +
18906 #ifdef CONFIG_X86_SMAP
18907
18908 static __always_inline void clac(void)
18909 diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
18910 index 8cd27e0..7f05ec8 100644
18911 --- a/arch/x86/include/asm/smp.h
18912 +++ b/arch/x86/include/asm/smp.h
18913 @@ -35,7 +35,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
18914 /* cpus sharing the last level cache: */
18915 DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
18916 DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
18917 -DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
18918 +DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
18919
18920 static inline struct cpumask *cpu_sibling_mask(int cpu)
18921 {
18922 @@ -78,7 +78,7 @@ struct smp_ops {
18923
18924 void (*send_call_func_ipi)(const struct cpumask *mask);
18925 void (*send_call_func_single_ipi)(int cpu);
18926 -};
18927 +} __no_const;
18928
18929 /* Globals due to paravirt */
18930 extern void set_cpu_sibling_map(int cpu);
18931 @@ -190,14 +190,8 @@ extern unsigned disabled_cpus;
18932 extern int safe_smp_processor_id(void);
18933
18934 #elif defined(CONFIG_X86_64_SMP)
18935 -#define raw_smp_processor_id() (this_cpu_read(cpu_number))
18936 -
18937 -#define stack_smp_processor_id() \
18938 -({ \
18939 - struct thread_info *ti; \
18940 - __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
18941 - ti->cpu; \
18942 -})
18943 +#define raw_smp_processor_id() (this_cpu_read(cpu_number))
18944 +#define stack_smp_processor_id() raw_smp_processor_id()
18945 #define safe_smp_processor_id() smp_processor_id()
18946
18947 #endif
18948 diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
18949 index 0f62f54..cb5d0dd 100644
18950 --- a/arch/x86/include/asm/spinlock.h
18951 +++ b/arch/x86/include/asm/spinlock.h
18952 @@ -222,6 +222,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock)
18953 static inline void arch_read_lock(arch_rwlock_t *rw)
18954 {
18955 asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t"
18956 +
18957 +#ifdef CONFIG_PAX_REFCOUNT
18958 + "jno 0f\n"
18959 + LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n"
18960 + "int $4\n0:\n"
18961 + _ASM_EXTABLE(0b, 0b)
18962 +#endif
18963 +
18964 "jns 1f\n"
18965 "call __read_lock_failed\n\t"
18966 "1:\n"
18967 @@ -231,6 +239,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
18968 static inline void arch_write_lock(arch_rwlock_t *rw)
18969 {
18970 asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t"
18971 +
18972 +#ifdef CONFIG_PAX_REFCOUNT
18973 + "jno 0f\n"
18974 + LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n"
18975 + "int $4\n0:\n"
18976 + _ASM_EXTABLE(0b, 0b)
18977 +#endif
18978 +
18979 "jz 1f\n"
18980 "call __write_lock_failed\n\t"
18981 "1:\n"
18982 @@ -260,13 +276,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
18983
18984 static inline void arch_read_unlock(arch_rwlock_t *rw)
18985 {
18986 - asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0"
18987 + asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n"
18988 +
18989 +#ifdef CONFIG_PAX_REFCOUNT
18990 + "jno 0f\n"
18991 + LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n"
18992 + "int $4\n0:\n"
18993 + _ASM_EXTABLE(0b, 0b)
18994 +#endif
18995 +
18996 :"+m" (rw->lock) : : "memory");
18997 }
18998
18999 static inline void arch_write_unlock(arch_rwlock_t *rw)
19000 {
19001 - asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0"
19002 + asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n"
19003 +
19004 +#ifdef CONFIG_PAX_REFCOUNT
19005 + "jno 0f\n"
19006 + LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n"
19007 + "int $4\n0:\n"
19008 + _ASM_EXTABLE(0b, 0b)
19009 +#endif
19010 +
19011 : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory");
19012 }
19013
19014 diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
19015 index 6a99859..03cb807 100644
19016 --- a/arch/x86/include/asm/stackprotector.h
19017 +++ b/arch/x86/include/asm/stackprotector.h
19018 @@ -47,7 +47,7 @@
19019 * head_32 for boot CPU and setup_per_cpu_areas() for others.
19020 */
19021 #define GDT_STACK_CANARY_INIT \
19022 - [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
19023 + [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
19024
19025 /*
19026 * Initialize the stackprotector canary value.
19027 @@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
19028
19029 static inline void load_stack_canary_segment(void)
19030 {
19031 -#ifdef CONFIG_X86_32
19032 +#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
19033 asm volatile ("mov %0, %%gs" : : "r" (0));
19034 #endif
19035 }
19036 diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
19037 index 70bbe39..4ae2bd4 100644
19038 --- a/arch/x86/include/asm/stacktrace.h
19039 +++ b/arch/x86/include/asm/stacktrace.h
19040 @@ -11,28 +11,20 @@
19041
19042 extern int kstack_depth_to_print;
19043
19044 -struct thread_info;
19045 +struct task_struct;
19046 struct stacktrace_ops;
19047
19048 -typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
19049 - unsigned long *stack,
19050 - unsigned long bp,
19051 - const struct stacktrace_ops *ops,
19052 - void *data,
19053 - unsigned long *end,
19054 - int *graph);
19055 +typedef unsigned long walk_stack_t(struct task_struct *task,
19056 + void *stack_start,
19057 + unsigned long *stack,
19058 + unsigned long bp,
19059 + const struct stacktrace_ops *ops,
19060 + void *data,
19061 + unsigned long *end,
19062 + int *graph);
19063
19064 -extern unsigned long
19065 -print_context_stack(struct thread_info *tinfo,
19066 - unsigned long *stack, unsigned long bp,
19067 - const struct stacktrace_ops *ops, void *data,
19068 - unsigned long *end, int *graph);
19069 -
19070 -extern unsigned long
19071 -print_context_stack_bp(struct thread_info *tinfo,
19072 - unsigned long *stack, unsigned long bp,
19073 - const struct stacktrace_ops *ops, void *data,
19074 - unsigned long *end, int *graph);
19075 +extern walk_stack_t print_context_stack;
19076 +extern walk_stack_t print_context_stack_bp;
19077
19078 /* Generic stack tracer with callbacks */
19079
19080 @@ -40,7 +32,7 @@ struct stacktrace_ops {
19081 void (*address)(void *data, unsigned long address, int reliable);
19082 /* On negative return stop dumping */
19083 int (*stack)(void *data, char *name);
19084 - walk_stack_t walk_stack;
19085 + walk_stack_t *walk_stack;
19086 };
19087
19088 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
19089 diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
19090 index d7f3b3b..3cc39f1 100644
19091 --- a/arch/x86/include/asm/switch_to.h
19092 +++ b/arch/x86/include/asm/switch_to.h
19093 @@ -108,7 +108,7 @@ do { \
19094 "call __switch_to\n\t" \
19095 "movq "__percpu_arg([current_task])",%%rsi\n\t" \
19096 __switch_canary \
19097 - "movq %P[thread_info](%%rsi),%%r8\n\t" \
19098 + "movq "__percpu_arg([thread_info])",%%r8\n\t" \
19099 "movq %%rax,%%rdi\n\t" \
19100 "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \
19101 "jnz ret_from_fork\n\t" \
19102 @@ -119,7 +119,7 @@ do { \
19103 [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
19104 [ti_flags] "i" (offsetof(struct thread_info, flags)), \
19105 [_tif_fork] "i" (_TIF_FORK), \
19106 - [thread_info] "i" (offsetof(struct task_struct, stack)), \
19107 + [thread_info] "m" (current_tinfo), \
19108 [current_task] "m" (current_task) \
19109 __switch_canary_iparam \
19110 : "memory", "cc" __EXTRA_CLOBBER)
19111 diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
19112 index 47e5de2..d3dda54 100644
19113 --- a/arch/x86/include/asm/thread_info.h
19114 +++ b/arch/x86/include/asm/thread_info.h
19115 @@ -24,7 +24,6 @@ struct exec_domain;
19116 #include <linux/atomic.h>
19117
19118 struct thread_info {
19119 - struct task_struct *task; /* main task structure */
19120 struct exec_domain *exec_domain; /* execution domain */
19121 __u32 flags; /* low level flags */
19122 __u32 status; /* thread synchronous flags */
19123 @@ -33,13 +32,13 @@ struct thread_info {
19124 mm_segment_t addr_limit;
19125 struct restart_block restart_block;
19126 void __user *sysenter_return;
19127 + unsigned long lowest_stack;
19128 unsigned int sig_on_uaccess_error:1;
19129 unsigned int uaccess_err:1; /* uaccess failed */
19130 };
19131
19132 -#define INIT_THREAD_INFO(tsk) \
19133 +#define INIT_THREAD_INFO \
19134 { \
19135 - .task = &tsk, \
19136 .exec_domain = &default_exec_domain, \
19137 .flags = 0, \
19138 .cpu = 0, \
19139 @@ -50,7 +49,7 @@ struct thread_info {
19140 }, \
19141 }
19142
19143 -#define init_thread_info (init_thread_union.thread_info)
19144 +#define init_thread_info (init_thread_union.stack)
19145 #define init_stack (init_thread_union.stack)
19146
19147 #else /* !__ASSEMBLY__ */
19148 @@ -90,6 +89,7 @@ struct thread_info {
19149 #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
19150 #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
19151 #define TIF_X32 30 /* 32-bit native x86-64 binary */
19152 +#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */
19153
19154 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
19155 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
19156 @@ -113,17 +113,18 @@ struct thread_info {
19157 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
19158 #define _TIF_ADDR32 (1 << TIF_ADDR32)
19159 #define _TIF_X32 (1 << TIF_X32)
19160 +#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
19161
19162 /* work to do in syscall_trace_enter() */
19163 #define _TIF_WORK_SYSCALL_ENTRY \
19164 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \
19165 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \
19166 - _TIF_NOHZ)
19167 + _TIF_NOHZ | _TIF_GRSEC_SETXID)
19168
19169 /* work to do in syscall_trace_leave() */
19170 #define _TIF_WORK_SYSCALL_EXIT \
19171 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \
19172 - _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
19173 + _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
19174
19175 /* work to do on interrupt/exception return */
19176 #define _TIF_WORK_MASK \
19177 @@ -134,7 +135,7 @@ struct thread_info {
19178 /* work to do on any return to user space */
19179 #define _TIF_ALLWORK_MASK \
19180 ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \
19181 - _TIF_NOHZ)
19182 + _TIF_NOHZ | _TIF_GRSEC_SETXID)
19183
19184 /* Only used for 64 bit */
19185 #define _TIF_DO_NOTIFY_MASK \
19186 @@ -149,7 +150,6 @@ struct thread_info {
19187 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
19188
19189 #define STACK_WARN (THREAD_SIZE/8)
19190 -#define KERNEL_STACK_OFFSET (5*(BITS_PER_LONG/8))
19191
19192 /*
19193 * macros/functions for gaining access to the thread information structure
19194 @@ -160,26 +160,18 @@ struct thread_info {
19195
19196 DECLARE_PER_CPU(unsigned long, kernel_stack);
19197
19198 +DECLARE_PER_CPU(struct thread_info *, current_tinfo);
19199 +
19200 static inline struct thread_info *current_thread_info(void)
19201 {
19202 - struct thread_info *ti;
19203 - ti = (void *)(this_cpu_read_stable(kernel_stack) +
19204 - KERNEL_STACK_OFFSET - THREAD_SIZE);
19205 - return ti;
19206 + return this_cpu_read_stable(current_tinfo);
19207 }
19208
19209 #else /* !__ASSEMBLY__ */
19210
19211 /* how to get the thread information struct from ASM */
19212 #define GET_THREAD_INFO(reg) \
19213 - _ASM_MOV PER_CPU_VAR(kernel_stack),reg ; \
19214 - _ASM_SUB $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg ;
19215 -
19216 -/*
19217 - * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
19218 - * a certain register (to be used in assembler memory operands).
19219 - */
19220 -#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
19221 + _ASM_MOV PER_CPU_VAR(current_tinfo),reg ;
19222
19223 #endif
19224
19225 @@ -237,5 +229,12 @@ static inline bool is_ia32_task(void)
19226 extern void arch_task_cache_init(void);
19227 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
19228 extern void arch_release_task_struct(struct task_struct *tsk);
19229 +
19230 +#define __HAVE_THREAD_FUNCTIONS
19231 +#define task_thread_info(task) (&(task)->tinfo)
19232 +#define task_stack_page(task) ((task)->stack)
19233 +#define setup_thread_stack(p, org) do {} while (0)
19234 +#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
19235 +
19236 #endif
19237 #endif /* _ASM_X86_THREAD_INFO_H */
19238 diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
19239 index 04905bf..49203ca 100644
19240 --- a/arch/x86/include/asm/tlbflush.h
19241 +++ b/arch/x86/include/asm/tlbflush.h
19242 @@ -17,18 +17,44 @@
19243
19244 static inline void __native_flush_tlb(void)
19245 {
19246 + if (static_cpu_has(X86_FEATURE_INVPCID)) {
19247 + u64 descriptor[2];
19248 +
19249 + descriptor[0] = PCID_KERNEL;
19250 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_MONGLOBAL) : "memory");
19251 + return;
19252 + }
19253 +
19254 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19255 + if (static_cpu_has(X86_FEATURE_PCID)) {
19256 + unsigned int cpu = raw_get_cpu();
19257 +
19258 + native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
19259 + native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
19260 + raw_put_cpu_no_resched();
19261 + return;
19262 + }
19263 +#endif
19264 +
19265 native_write_cr3(native_read_cr3());
19266 }
19267
19268 static inline void __native_flush_tlb_global_irq_disabled(void)
19269 {
19270 - unsigned long cr4;
19271 + if (static_cpu_has(X86_FEATURE_INVPCID)) {
19272 + u64 descriptor[2];
19273
19274 - cr4 = native_read_cr4();
19275 - /* clear PGE */
19276 - native_write_cr4(cr4 & ~X86_CR4_PGE);
19277 - /* write old PGE again and flush TLBs */
19278 - native_write_cr4(cr4);
19279 + descriptor[0] = PCID_KERNEL;
19280 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_GLOBAL) : "memory");
19281 + } else {
19282 + unsigned long cr4;
19283 +
19284 + cr4 = native_read_cr4();
19285 + /* clear PGE */
19286 + native_write_cr4(cr4 & ~X86_CR4_PGE);
19287 + /* write old PGE again and flush TLBs */
19288 + native_write_cr4(cr4);
19289 + }
19290 }
19291
19292 static inline void __native_flush_tlb_global(void)
19293 @@ -49,6 +75,41 @@ static inline void __native_flush_tlb_global(void)
19294
19295 static inline void __native_flush_tlb_single(unsigned long addr)
19296 {
19297 + if (static_cpu_has(X86_FEATURE_INVPCID)) {
19298 + u64 descriptor[2];
19299 +
19300 + descriptor[0] = PCID_KERNEL;
19301 + descriptor[1] = addr;
19302 +
19303 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19304 + if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) || addr >= TASK_SIZE_MAX) {
19305 + if (addr < TASK_SIZE_MAX)
19306 + descriptor[1] += pax_user_shadow_base;
19307 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19308 + }
19309 +
19310 + descriptor[0] = PCID_USER;
19311 + descriptor[1] = addr;
19312 +#endif
19313 +
19314 + asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19315 + return;
19316 + }
19317 +
19318 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19319 + if (static_cpu_has(X86_FEATURE_PCID)) {
19320 + unsigned int cpu = raw_get_cpu();
19321 +
19322 + native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
19323 + asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19324 + native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
19325 + raw_put_cpu_no_resched();
19326 +
19327 + if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) && addr < TASK_SIZE_MAX)
19328 + addr += pax_user_shadow_base;
19329 + }
19330 +#endif
19331 +
19332 asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19333 }
19334
19335 diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
19336 index 0d592e0..7437fcc 100644
19337 --- a/arch/x86/include/asm/uaccess.h
19338 +++ b/arch/x86/include/asm/uaccess.h
19339 @@ -7,6 +7,7 @@
19340 #include <linux/compiler.h>
19341 #include <linux/thread_info.h>
19342 #include <linux/string.h>
19343 +#include <linux/spinlock.h>
19344 #include <asm/asm.h>
19345 #include <asm/page.h>
19346 #include <asm/smap.h>
19347 @@ -29,7 +30,12 @@
19348
19349 #define get_ds() (KERNEL_DS)
19350 #define get_fs() (current_thread_info()->addr_limit)
19351 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19352 +void __set_fs(mm_segment_t x);
19353 +void set_fs(mm_segment_t x);
19354 +#else
19355 #define set_fs(x) (current_thread_info()->addr_limit = (x))
19356 +#endif
19357
19358 #define segment_eq(a, b) ((a).seg == (b).seg)
19359
19360 @@ -85,8 +91,36 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
19361 * checks that the pointer is in the user space range - after calling
19362 * this function, memory access functions may still return -EFAULT.
19363 */
19364 -#define access_ok(type, addr, size) \
19365 - likely(!__range_not_ok(addr, size, user_addr_max()))
19366 +extern int _cond_resched(void);
19367 +#define access_ok_noprefault(type, addr, size) (likely(!__range_not_ok(addr, size, user_addr_max())))
19368 +#define access_ok(type, addr, size) \
19369 +({ \
19370 + unsigned long __size = size; \
19371 + unsigned long __addr = (unsigned long)addr; \
19372 + bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
19373 + if (__ret_ao && __size) { \
19374 + unsigned long __addr_ao = __addr & PAGE_MASK; \
19375 + unsigned long __end_ao = __addr + __size - 1; \
19376 + if (unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \
19377 + while (__addr_ao <= __end_ao) { \
19378 + char __c_ao; \
19379 + __addr_ao += PAGE_SIZE; \
19380 + if (__size > PAGE_SIZE) \
19381 + _cond_resched(); \
19382 + if (__get_user(__c_ao, (char __user *)__addr)) \
19383 + break; \
19384 + if (type != VERIFY_WRITE) { \
19385 + __addr = __addr_ao; \
19386 + continue; \
19387 + } \
19388 + if (__put_user(__c_ao, (char __user *)__addr)) \
19389 + break; \
19390 + __addr = __addr_ao; \
19391 + } \
19392 + } \
19393 + } \
19394 + __ret_ao; \
19395 +})
19396
19397 /*
19398 * The exception table consists of pairs of addresses relative to the
19399 @@ -176,10 +210,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19400 register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
19401 __chk_user_ptr(ptr); \
19402 might_fault(); \
19403 + pax_open_userland(); \
19404 asm volatile("call __get_user_%P3" \
19405 : "=a" (__ret_gu), "=r" (__val_gu) \
19406 : "0" (ptr), "i" (sizeof(*(ptr)))); \
19407 (x) = (__typeof__(*(ptr))) __val_gu; \
19408 + pax_close_userland(); \
19409 __ret_gu; \
19410 })
19411
19412 @@ -187,13 +223,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19413 asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
19414 : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
19415
19416 -
19417 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19418 +#define __copyuser_seg "gs;"
19419 +#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
19420 +#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
19421 +#else
19422 +#define __copyuser_seg
19423 +#define __COPYUSER_SET_ES
19424 +#define __COPYUSER_RESTORE_ES
19425 +#endif
19426
19427 #ifdef CONFIG_X86_32
19428 #define __put_user_asm_u64(x, addr, err, errret) \
19429 asm volatile(ASM_STAC "\n" \
19430 - "1: movl %%eax,0(%2)\n" \
19431 - "2: movl %%edx,4(%2)\n" \
19432 + "1: "__copyuser_seg"movl %%eax,0(%2)\n" \
19433 + "2: "__copyuser_seg"movl %%edx,4(%2)\n" \
19434 "3: " ASM_CLAC "\n" \
19435 ".section .fixup,\"ax\"\n" \
19436 "4: movl %3,%0\n" \
19437 @@ -206,8 +250,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19438
19439 #define __put_user_asm_ex_u64(x, addr) \
19440 asm volatile(ASM_STAC "\n" \
19441 - "1: movl %%eax,0(%1)\n" \
19442 - "2: movl %%edx,4(%1)\n" \
19443 + "1: "__copyuser_seg"movl %%eax,0(%1)\n" \
19444 + "2: "__copyuser_seg"movl %%edx,4(%1)\n" \
19445 "3: " ASM_CLAC "\n" \
19446 _ASM_EXTABLE_EX(1b, 2b) \
19447 _ASM_EXTABLE_EX(2b, 3b) \
19448 @@ -257,7 +301,8 @@ extern void __put_user_8(void);
19449 __typeof__(*(ptr)) __pu_val; \
19450 __chk_user_ptr(ptr); \
19451 might_fault(); \
19452 - __pu_val = x; \
19453 + __pu_val = (x); \
19454 + pax_open_userland(); \
19455 switch (sizeof(*(ptr))) { \
19456 case 1: \
19457 __put_user_x(1, __pu_val, ptr, __ret_pu); \
19458 @@ -275,6 +320,7 @@ extern void __put_user_8(void);
19459 __put_user_x(X, __pu_val, ptr, __ret_pu); \
19460 break; \
19461 } \
19462 + pax_close_userland(); \
19463 __ret_pu; \
19464 })
19465
19466 @@ -355,8 +401,10 @@ do { \
19467 } while (0)
19468
19469 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19470 +do { \
19471 + pax_open_userland(); \
19472 asm volatile(ASM_STAC "\n" \
19473 - "1: mov"itype" %2,%"rtype"1\n" \
19474 + "1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
19475 "2: " ASM_CLAC "\n" \
19476 ".section .fixup,\"ax\"\n" \
19477 "3: mov %3,%0\n" \
19478 @@ -364,8 +412,10 @@ do { \
19479 " jmp 2b\n" \
19480 ".previous\n" \
19481 _ASM_EXTABLE(1b, 3b) \
19482 - : "=r" (err), ltype(x) \
19483 - : "m" (__m(addr)), "i" (errret), "0" (err))
19484 + : "=r" (err), ltype (x) \
19485 + : "m" (__m(addr)), "i" (errret), "0" (err)); \
19486 + pax_close_userland(); \
19487 +} while (0)
19488
19489 #define __get_user_size_ex(x, ptr, size) \
19490 do { \
19491 @@ -389,7 +439,7 @@ do { \
19492 } while (0)
19493
19494 #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
19495 - asm volatile("1: mov"itype" %1,%"rtype"0\n" \
19496 + asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
19497 "2:\n" \
19498 _ASM_EXTABLE_EX(1b, 2b) \
19499 : ltype(x) : "m" (__m(addr)))
19500 @@ -406,13 +456,24 @@ do { \
19501 int __gu_err; \
19502 unsigned long __gu_val; \
19503 __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \
19504 - (x) = (__force __typeof__(*(ptr)))__gu_val; \
19505 + (x) = (__typeof__(*(ptr)))__gu_val; \
19506 __gu_err; \
19507 })
19508
19509 /* FIXME: this hack is definitely wrong -AK */
19510 struct __large_struct { unsigned long buf[100]; };
19511 -#define __m(x) (*(struct __large_struct __user *)(x))
19512 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19513 +#define ____m(x) \
19514 +({ \
19515 + unsigned long ____x = (unsigned long)(x); \
19516 + if (____x < pax_user_shadow_base) \
19517 + ____x += pax_user_shadow_base; \
19518 + (typeof(x))____x; \
19519 +})
19520 +#else
19521 +#define ____m(x) (x)
19522 +#endif
19523 +#define __m(x) (*(struct __large_struct __user *)____m(x))
19524
19525 /*
19526 * Tell gcc we read from memory instead of writing: this is because
19527 @@ -420,8 +481,10 @@ struct __large_struct { unsigned long buf[100]; };
19528 * aliasing issues.
19529 */
19530 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19531 +do { \
19532 + pax_open_userland(); \
19533 asm volatile(ASM_STAC "\n" \
19534 - "1: mov"itype" %"rtype"1,%2\n" \
19535 + "1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
19536 "2: " ASM_CLAC "\n" \
19537 ".section .fixup,\"ax\"\n" \
19538 "3: mov %3,%0\n" \
19539 @@ -429,10 +492,12 @@ struct __large_struct { unsigned long buf[100]; };
19540 ".previous\n" \
19541 _ASM_EXTABLE(1b, 3b) \
19542 : "=r"(err) \
19543 - : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
19544 + : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err));\
19545 + pax_close_userland(); \
19546 +} while (0)
19547
19548 #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \
19549 - asm volatile("1: mov"itype" %"rtype"0,%1\n" \
19550 + asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
19551 "2:\n" \
19552 _ASM_EXTABLE_EX(1b, 2b) \
19553 : : ltype(x), "m" (__m(addr)))
19554 @@ -442,11 +507,13 @@ struct __large_struct { unsigned long buf[100]; };
19555 */
19556 #define uaccess_try do { \
19557 current_thread_info()->uaccess_err = 0; \
19558 + pax_open_userland(); \
19559 stac(); \
19560 barrier();
19561
19562 #define uaccess_catch(err) \
19563 clac(); \
19564 + pax_close_userland(); \
19565 (err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0); \
19566 } while (0)
19567
19568 @@ -471,8 +538,12 @@ struct __large_struct { unsigned long buf[100]; };
19569 * On error, the variable @x is set to zero.
19570 */
19571
19572 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19573 +#define __get_user(x, ptr) get_user((x), (ptr))
19574 +#else
19575 #define __get_user(x, ptr) \
19576 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
19577 +#endif
19578
19579 /**
19580 * __put_user: - Write a simple value into user space, with less checking.
19581 @@ -494,8 +565,12 @@ struct __large_struct { unsigned long buf[100]; };
19582 * Returns zero on success, or -EFAULT on error.
19583 */
19584
19585 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19586 +#define __put_user(x, ptr) put_user((x), (ptr))
19587 +#else
19588 #define __put_user(x, ptr) \
19589 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
19590 +#endif
19591
19592 #define __get_user_unaligned __get_user
19593 #define __put_user_unaligned __put_user
19594 @@ -513,7 +588,7 @@ struct __large_struct { unsigned long buf[100]; };
19595 #define get_user_ex(x, ptr) do { \
19596 unsigned long __gue_val; \
19597 __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \
19598 - (x) = (__force __typeof__(*(ptr)))__gue_val; \
19599 + (x) = (__typeof__(*(ptr)))__gue_val; \
19600 } while (0)
19601
19602 #define put_user_try uaccess_try
19603 @@ -542,18 +617,19 @@ extern void __cmpxchg_wrong_size(void)
19604 __typeof__(ptr) __uval = (uval); \
19605 __typeof__(*(ptr)) __old = (old); \
19606 __typeof__(*(ptr)) __new = (new); \
19607 + pax_open_userland(); \
19608 switch (size) { \
19609 case 1: \
19610 { \
19611 asm volatile("\t" ASM_STAC "\n" \
19612 - "1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n" \
19613 + "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgb %4, %2\n"\
19614 "2:\t" ASM_CLAC "\n" \
19615 "\t.section .fixup, \"ax\"\n" \
19616 "3:\tmov %3, %0\n" \
19617 "\tjmp 2b\n" \
19618 "\t.previous\n" \
19619 _ASM_EXTABLE(1b, 3b) \
19620 - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19621 + : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19622 : "i" (-EFAULT), "q" (__new), "1" (__old) \
19623 : "memory" \
19624 ); \
19625 @@ -562,14 +638,14 @@ extern void __cmpxchg_wrong_size(void)
19626 case 2: \
19627 { \
19628 asm volatile("\t" ASM_STAC "\n" \
19629 - "1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n" \
19630 + "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgw %4, %2\n"\
19631 "2:\t" ASM_CLAC "\n" \
19632 "\t.section .fixup, \"ax\"\n" \
19633 "3:\tmov %3, %0\n" \
19634 "\tjmp 2b\n" \
19635 "\t.previous\n" \
19636 _ASM_EXTABLE(1b, 3b) \
19637 - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19638 + : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19639 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19640 : "memory" \
19641 ); \
19642 @@ -578,14 +654,14 @@ extern void __cmpxchg_wrong_size(void)
19643 case 4: \
19644 { \
19645 asm volatile("\t" ASM_STAC "\n" \
19646 - "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" \
19647 + "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"\
19648 "2:\t" ASM_CLAC "\n" \
19649 "\t.section .fixup, \"ax\"\n" \
19650 "3:\tmov %3, %0\n" \
19651 "\tjmp 2b\n" \
19652 "\t.previous\n" \
19653 _ASM_EXTABLE(1b, 3b) \
19654 - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19655 + : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19656 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19657 : "memory" \
19658 ); \
19659 @@ -597,14 +673,14 @@ extern void __cmpxchg_wrong_size(void)
19660 __cmpxchg_wrong_size(); \
19661 \
19662 asm volatile("\t" ASM_STAC "\n" \
19663 - "1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n" \
19664 + "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgq %4, %2\n"\
19665 "2:\t" ASM_CLAC "\n" \
19666 "\t.section .fixup, \"ax\"\n" \
19667 "3:\tmov %3, %0\n" \
19668 "\tjmp 2b\n" \
19669 "\t.previous\n" \
19670 _ASM_EXTABLE(1b, 3b) \
19671 - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19672 + : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19673 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19674 : "memory" \
19675 ); \
19676 @@ -613,6 +689,7 @@ extern void __cmpxchg_wrong_size(void)
19677 default: \
19678 __cmpxchg_wrong_size(); \
19679 } \
19680 + pax_close_userland(); \
19681 *__uval = __old; \
19682 __ret; \
19683 })
19684 @@ -636,17 +713,6 @@ extern struct movsl_mask {
19685
19686 #define ARCH_HAS_NOCACHE_UACCESS 1
19687
19688 -#ifdef CONFIG_X86_32
19689 -# include <asm/uaccess_32.h>
19690 -#else
19691 -# include <asm/uaccess_64.h>
19692 -#endif
19693 -
19694 -unsigned long __must_check _copy_from_user(void *to, const void __user *from,
19695 - unsigned n);
19696 -unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19697 - unsigned n);
19698 -
19699 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
19700 # define copy_user_diag __compiletime_error
19701 #else
19702 @@ -656,7 +722,7 @@ unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19703 extern void copy_user_diag("copy_from_user() buffer size is too small")
19704 copy_from_user_overflow(void);
19705 extern void copy_user_diag("copy_to_user() buffer size is too small")
19706 -copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19707 +copy_to_user_overflow(void);
19708
19709 #undef copy_user_diag
19710
19711 @@ -669,7 +735,7 @@ __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
19712
19713 extern void
19714 __compiletime_warning("copy_to_user() buffer size is not provably correct")
19715 -__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19716 +__copy_to_user_overflow(void) __asm__("copy_to_user_overflow");
19717 #define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
19718
19719 #else
19720 @@ -684,10 +750,16 @@ __copy_from_user_overflow(int size, unsigned long count)
19721
19722 #endif
19723
19724 +#ifdef CONFIG_X86_32
19725 +# include <asm/uaccess_32.h>
19726 +#else
19727 +# include <asm/uaccess_64.h>
19728 +#endif
19729 +
19730 static inline unsigned long __must_check
19731 copy_from_user(void *to, const void __user *from, unsigned long n)
19732 {
19733 - int sz = __compiletime_object_size(to);
19734 + size_t sz = __compiletime_object_size(to);
19735
19736 might_fault();
19737
19738 @@ -709,12 +781,15 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19739 * case, and do only runtime checking for non-constant sizes.
19740 */
19741
19742 - if (likely(sz < 0 || sz >= n))
19743 - n = _copy_from_user(to, from, n);
19744 - else if(__builtin_constant_p(n))
19745 - copy_from_user_overflow();
19746 - else
19747 - __copy_from_user_overflow(sz, n);
19748 + if (likely(sz != (size_t)-1 && sz < n)) {
19749 + if(__builtin_constant_p(n))
19750 + copy_from_user_overflow();
19751 + else
19752 + __copy_from_user_overflow(sz, n);
19753 + } if (access_ok(VERIFY_READ, from, n))
19754 + n = __copy_from_user(to, from, n);
19755 + else if ((long)n > 0)
19756 + memset(to, 0, n);
19757
19758 return n;
19759 }
19760 @@ -722,17 +797,18 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19761 static inline unsigned long __must_check
19762 copy_to_user(void __user *to, const void *from, unsigned long n)
19763 {
19764 - int sz = __compiletime_object_size(from);
19765 + size_t sz = __compiletime_object_size(from);
19766
19767 might_fault();
19768
19769 /* See the comment in copy_from_user() above. */
19770 - if (likely(sz < 0 || sz >= n))
19771 - n = _copy_to_user(to, from, n);
19772 - else if(__builtin_constant_p(n))
19773 - copy_to_user_overflow();
19774 - else
19775 - __copy_to_user_overflow(sz, n);
19776 + if (likely(sz != (size_t)-1 && sz < n)) {
19777 + if(__builtin_constant_p(n))
19778 + copy_to_user_overflow();
19779 + else
19780 + __copy_to_user_overflow(sz, n);
19781 + } else if (access_ok(VERIFY_WRITE, to, n))
19782 + n = __copy_to_user(to, from, n);
19783
19784 return n;
19785 }
19786 diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
19787 index 3c03a5d..1071638 100644
19788 --- a/arch/x86/include/asm/uaccess_32.h
19789 +++ b/arch/x86/include/asm/uaccess_32.h
19790 @@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
19791 static __always_inline unsigned long __must_check
19792 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
19793 {
19794 + if ((long)n < 0)
19795 + return n;
19796 +
19797 + check_object_size(from, n, true);
19798 +
19799 if (__builtin_constant_p(n)) {
19800 unsigned long ret;
19801
19802 @@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
19803 __copy_to_user(void __user *to, const void *from, unsigned long n)
19804 {
19805 might_fault();
19806 +
19807 return __copy_to_user_inatomic(to, from, n);
19808 }
19809
19810 static __always_inline unsigned long
19811 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
19812 {
19813 + if ((long)n < 0)
19814 + return n;
19815 +
19816 /* Avoid zeroing the tail if the copy fails..
19817 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
19818 * but as the zeroing behaviour is only significant when n is not
19819 @@ -137,6 +146,12 @@ static __always_inline unsigned long
19820 __copy_from_user(void *to, const void __user *from, unsigned long n)
19821 {
19822 might_fault();
19823 +
19824 + if ((long)n < 0)
19825 + return n;
19826 +
19827 + check_object_size(to, n, false);
19828 +
19829 if (__builtin_constant_p(n)) {
19830 unsigned long ret;
19831
19832 @@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
19833 const void __user *from, unsigned long n)
19834 {
19835 might_fault();
19836 +
19837 + if ((long)n < 0)
19838 + return n;
19839 +
19840 if (__builtin_constant_p(n)) {
19841 unsigned long ret;
19842
19843 @@ -181,7 +200,10 @@ static __always_inline unsigned long
19844 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
19845 unsigned long n)
19846 {
19847 - return __copy_from_user_ll_nocache_nozero(to, from, n);
19848 + if ((long)n < 0)
19849 + return n;
19850 +
19851 + return __copy_from_user_ll_nocache_nozero(to, from, n);
19852 }
19853
19854 #endif /* _ASM_X86_UACCESS_32_H */
19855 diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
19856 index 12a26b9..206c200 100644
19857 --- a/arch/x86/include/asm/uaccess_64.h
19858 +++ b/arch/x86/include/asm/uaccess_64.h
19859 @@ -10,6 +10,9 @@
19860 #include <asm/alternative.h>
19861 #include <asm/cpufeature.h>
19862 #include <asm/page.h>
19863 +#include <asm/pgtable.h>
19864 +
19865 +#define set_fs(x) (current_thread_info()->addr_limit = (x))
19866
19867 /*
19868 * Copy To/From Userspace
19869 @@ -17,14 +20,14 @@
19870
19871 /* Handles exceptions in both to and from, but doesn't do access_ok */
19872 __must_check unsigned long
19873 -copy_user_enhanced_fast_string(void *to, const void *from, unsigned len);
19874 +copy_user_enhanced_fast_string(void *to, const void *from, unsigned len) __size_overflow(3);
19875 __must_check unsigned long
19876 -copy_user_generic_string(void *to, const void *from, unsigned len);
19877 +copy_user_generic_string(void *to, const void *from, unsigned len) __size_overflow(3);
19878 __must_check unsigned long
19879 -copy_user_generic_unrolled(void *to, const void *from, unsigned len);
19880 +copy_user_generic_unrolled(void *to, const void *from, unsigned len) __size_overflow(3);
19881
19882 static __always_inline __must_check unsigned long
19883 -copy_user_generic(void *to, const void *from, unsigned len)
19884 +copy_user_generic(void *to, const void *from, unsigned long len)
19885 {
19886 unsigned ret;
19887
19888 @@ -46,121 +49,170 @@ copy_user_generic(void *to, const void *from, unsigned len)
19889 }
19890
19891 __must_check unsigned long
19892 -copy_in_user(void __user *to, const void __user *from, unsigned len);
19893 +copy_in_user(void __user *to, const void __user *from, unsigned long len);
19894
19895 static __always_inline __must_check
19896 -int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
19897 +unsigned long __copy_from_user_nocheck(void *dst, const void __user *src, unsigned long size)
19898 {
19899 - int ret = 0;
19900 + size_t sz = __compiletime_object_size(dst);
19901 + unsigned ret = 0;
19902 +
19903 + if (size > INT_MAX)
19904 + return size;
19905 +
19906 + check_object_size(dst, size, false);
19907 +
19908 +#ifdef CONFIG_PAX_MEMORY_UDEREF
19909 + if (!access_ok_noprefault(VERIFY_READ, src, size))
19910 + return size;
19911 +#endif
19912 +
19913 + if (unlikely(sz != (size_t)-1 && sz < size)) {
19914 + if(__builtin_constant_p(size))
19915 + copy_from_user_overflow();
19916 + else
19917 + __copy_from_user_overflow(sz, size);
19918 + return size;
19919 + }
19920
19921 if (!__builtin_constant_p(size))
19922 - return copy_user_generic(dst, (__force void *)src, size);
19923 + return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
19924 switch (size) {
19925 - case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
19926 + case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
19927 ret, "b", "b", "=q", 1);
19928 return ret;
19929 - case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
19930 + case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
19931 ret, "w", "w", "=r", 2);
19932 return ret;
19933 - case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
19934 + case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
19935 ret, "l", "k", "=r", 4);
19936 return ret;
19937 - case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
19938 + case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
19939 ret, "q", "", "=r", 8);
19940 return ret;
19941 case 10:
19942 - __get_user_asm(*(u64 *)dst, (u64 __user *)src,
19943 + __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
19944 ret, "q", "", "=r", 10);
19945 if (unlikely(ret))
19946 return ret;
19947 __get_user_asm(*(u16 *)(8 + (char *)dst),
19948 - (u16 __user *)(8 + (char __user *)src),
19949 + (const u16 __user *)(8 + (const char __user *)src),
19950 ret, "w", "w", "=r", 2);
19951 return ret;
19952 case 16:
19953 - __get_user_asm(*(u64 *)dst, (u64 __user *)src,
19954 + __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
19955 ret, "q", "", "=r", 16);
19956 if (unlikely(ret))
19957 return ret;
19958 __get_user_asm(*(u64 *)(8 + (char *)dst),
19959 - (u64 __user *)(8 + (char __user *)src),
19960 + (const u64 __user *)(8 + (const char __user *)src),
19961 ret, "q", "", "=r", 8);
19962 return ret;
19963 default:
19964 - return copy_user_generic(dst, (__force void *)src, size);
19965 + return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
19966 }
19967 }
19968
19969 static __always_inline __must_check
19970 -int __copy_from_user(void *dst, const void __user *src, unsigned size)
19971 +unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
19972 {
19973 might_fault();
19974 return __copy_from_user_nocheck(dst, src, size);
19975 }
19976
19977 static __always_inline __must_check
19978 -int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
19979 +unsigned long __copy_to_user_nocheck(void __user *dst, const void *src, unsigned long size)
19980 {
19981 - int ret = 0;
19982 + size_t sz = __compiletime_object_size(src);
19983 + unsigned ret = 0;
19984 +
19985 + if (size > INT_MAX)
19986 + return size;
19987 +
19988 + check_object_size(src, size, true);
19989 +
19990 +#ifdef CONFIG_PAX_MEMORY_UDEREF
19991 + if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
19992 + return size;
19993 +#endif
19994 +
19995 + if (unlikely(sz != (size_t)-1 && sz < size)) {
19996 + if(__builtin_constant_p(size))
19997 + copy_to_user_overflow();
19998 + else
19999 + __copy_to_user_overflow(sz, size);
20000 + return size;
20001 + }
20002
20003 if (!__builtin_constant_p(size))
20004 - return copy_user_generic((__force void *)dst, src, size);
20005 + return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20006 switch (size) {
20007 - case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
20008 + case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
20009 ret, "b", "b", "iq", 1);
20010 return ret;
20011 - case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
20012 + case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
20013 ret, "w", "w", "ir", 2);
20014 return ret;
20015 - case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
20016 + case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
20017 ret, "l", "k", "ir", 4);
20018 return ret;
20019 - case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
20020 + case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20021 ret, "q", "", "er", 8);
20022 return ret;
20023 case 10:
20024 - __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20025 + __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20026 ret, "q", "", "er", 10);
20027 if (unlikely(ret))
20028 return ret;
20029 asm("":::"memory");
20030 - __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
20031 + __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
20032 ret, "w", "w", "ir", 2);
20033 return ret;
20034 case 16:
20035 - __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20036 + __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20037 ret, "q", "", "er", 16);
20038 if (unlikely(ret))
20039 return ret;
20040 asm("":::"memory");
20041 - __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
20042 + __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
20043 ret, "q", "", "er", 8);
20044 return ret;
20045 default:
20046 - return copy_user_generic((__force void *)dst, src, size);
20047 + return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20048 }
20049 }
20050
20051 static __always_inline __must_check
20052 -int __copy_to_user(void __user *dst, const void *src, unsigned size)
20053 +unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
20054 {
20055 might_fault();
20056 return __copy_to_user_nocheck(dst, src, size);
20057 }
20058
20059 static __always_inline __must_check
20060 -int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20061 +unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20062 {
20063 - int ret = 0;
20064 + unsigned ret = 0;
20065
20066 might_fault();
20067 +
20068 + if (size > INT_MAX)
20069 + return size;
20070 +
20071 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20072 + if (!access_ok_noprefault(VERIFY_READ, src, size))
20073 + return size;
20074 + if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
20075 + return size;
20076 +#endif
20077 +
20078 if (!__builtin_constant_p(size))
20079 - return copy_user_generic((__force void *)dst,
20080 - (__force void *)src, size);
20081 + return copy_user_generic((__force_kernel void *)____m(dst),
20082 + (__force_kernel const void *)____m(src), size);
20083 switch (size) {
20084 case 1: {
20085 u8 tmp;
20086 - __get_user_asm(tmp, (u8 __user *)src,
20087 + __get_user_asm(tmp, (const u8 __user *)src,
20088 ret, "b", "b", "=q", 1);
20089 if (likely(!ret))
20090 __put_user_asm(tmp, (u8 __user *)dst,
20091 @@ -169,7 +221,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20092 }
20093 case 2: {
20094 u16 tmp;
20095 - __get_user_asm(tmp, (u16 __user *)src,
20096 + __get_user_asm(tmp, (const u16 __user *)src,
20097 ret, "w", "w", "=r", 2);
20098 if (likely(!ret))
20099 __put_user_asm(tmp, (u16 __user *)dst,
20100 @@ -179,7 +231,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20101
20102 case 4: {
20103 u32 tmp;
20104 - __get_user_asm(tmp, (u32 __user *)src,
20105 + __get_user_asm(tmp, (const u32 __user *)src,
20106 ret, "l", "k", "=r", 4);
20107 if (likely(!ret))
20108 __put_user_asm(tmp, (u32 __user *)dst,
20109 @@ -188,7 +240,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20110 }
20111 case 8: {
20112 u64 tmp;
20113 - __get_user_asm(tmp, (u64 __user *)src,
20114 + __get_user_asm(tmp, (const u64 __user *)src,
20115 ret, "q", "", "=r", 8);
20116 if (likely(!ret))
20117 __put_user_asm(tmp, (u64 __user *)dst,
20118 @@ -196,41 +248,58 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20119 return ret;
20120 }
20121 default:
20122 - return copy_user_generic((__force void *)dst,
20123 - (__force void *)src, size);
20124 + return copy_user_generic((__force_kernel void *)____m(dst),
20125 + (__force_kernel const void *)____m(src), size);
20126 }
20127 }
20128
20129 -static __must_check __always_inline int
20130 -__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
20131 +static __must_check __always_inline unsigned long
20132 +__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
20133 {
20134 return __copy_from_user_nocheck(dst, src, size);
20135 }
20136
20137 -static __must_check __always_inline int
20138 -__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
20139 +static __must_check __always_inline unsigned long
20140 +__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
20141 {
20142 return __copy_to_user_nocheck(dst, src, size);
20143 }
20144
20145 -extern long __copy_user_nocache(void *dst, const void __user *src,
20146 - unsigned size, int zerorest);
20147 +extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
20148 + unsigned long size, int zerorest);
20149
20150 -static inline int
20151 -__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
20152 +static inline unsigned long
20153 +__copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
20154 {
20155 might_fault();
20156 +
20157 + if (size > INT_MAX)
20158 + return size;
20159 +
20160 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20161 + if (!access_ok_noprefault(VERIFY_READ, src, size))
20162 + return size;
20163 +#endif
20164 +
20165 return __copy_user_nocache(dst, src, size, 1);
20166 }
20167
20168 -static inline int
20169 +static inline unsigned long
20170 __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
20171 - unsigned size)
20172 + unsigned long size)
20173 {
20174 + if (size > INT_MAX)
20175 + return size;
20176 +
20177 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20178 + if (!access_ok_noprefault(VERIFY_READ, src, size))
20179 + return size;
20180 +#endif
20181 +
20182 return __copy_user_nocache(dst, src, size, 0);
20183 }
20184
20185 unsigned long
20186 -copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
20187 +copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3);
20188
20189 #endif /* _ASM_X86_UACCESS_64_H */
20190 diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
20191 index 5b238981..77fdd78 100644
20192 --- a/arch/x86/include/asm/word-at-a-time.h
20193 +++ b/arch/x86/include/asm/word-at-a-time.h
20194 @@ -11,7 +11,7 @@
20195 * and shift, for example.
20196 */
20197 struct word_at_a_time {
20198 - const unsigned long one_bits, high_bits;
20199 + unsigned long one_bits, high_bits;
20200 };
20201
20202 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
20203 diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
20204 index e45e4da..44e8572 100644
20205 --- a/arch/x86/include/asm/x86_init.h
20206 +++ b/arch/x86/include/asm/x86_init.h
20207 @@ -129,7 +129,7 @@ struct x86_init_ops {
20208 struct x86_init_timers timers;
20209 struct x86_init_iommu iommu;
20210 struct x86_init_pci pci;
20211 -};
20212 +} __no_const;
20213
20214 /**
20215 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
20216 @@ -140,7 +140,7 @@ struct x86_cpuinit_ops {
20217 void (*setup_percpu_clockev)(void);
20218 void (*early_percpu_clock_init)(void);
20219 void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
20220 -};
20221 +} __no_const;
20222
20223 struct timespec;
20224
20225 @@ -168,7 +168,7 @@ struct x86_platform_ops {
20226 void (*save_sched_clock_state)(void);
20227 void (*restore_sched_clock_state)(void);
20228 void (*apic_post_init)(void);
20229 -};
20230 +} __no_const;
20231
20232 struct pci_dev;
20233 struct msi_msg;
20234 @@ -185,7 +185,7 @@ struct x86_msi_ops {
20235 int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
20236 u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
20237 u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
20238 -};
20239 +} __no_const;
20240
20241 struct IO_APIC_route_entry;
20242 struct io_apic_irq_attr;
20243 @@ -206,7 +206,7 @@ struct x86_io_apic_ops {
20244 unsigned int destination, int vector,
20245 struct io_apic_irq_attr *attr);
20246 void (*eoi_ioapic_pin)(int apic, int pin, int vector);
20247 -};
20248 +} __no_const;
20249
20250 extern struct x86_init_ops x86_init;
20251 extern struct x86_cpuinit_ops x86_cpuinit;
20252 diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
20253 index c949923..c22bfa4 100644
20254 --- a/arch/x86/include/asm/xen/page.h
20255 +++ b/arch/x86/include/asm/xen/page.h
20256 @@ -63,7 +63,7 @@ extern int m2p_remove_override(struct page *page,
20257 extern struct page *m2p_find_override(unsigned long mfn);
20258 extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
20259
20260 -static inline unsigned long pfn_to_mfn(unsigned long pfn)
20261 +static inline unsigned long __intentional_overflow(-1) pfn_to_mfn(unsigned long pfn)
20262 {
20263 unsigned long mfn;
20264
20265 diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
20266 index d949ef2..479b9d1 100644
20267 --- a/arch/x86/include/asm/xsave.h
20268 +++ b/arch/x86/include/asm/xsave.h
20269 @@ -82,8 +82,11 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20270 if (unlikely(err))
20271 return -EFAULT;
20272
20273 + pax_open_userland();
20274 __asm__ __volatile__(ASM_STAC "\n"
20275 - "1: .byte " REX_PREFIX "0x0f,0xae,0x27\n"
20276 + "1:"
20277 + __copyuser_seg
20278 + ".byte " REX_PREFIX "0x0f,0xae,0x27\n"
20279 "2: " ASM_CLAC "\n"
20280 ".section .fixup,\"ax\"\n"
20281 "3: movl $-1,%[err]\n"
20282 @@ -93,18 +96,22 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20283 : [err] "=r" (err)
20284 : "D" (buf), "a" (-1), "d" (-1), "0" (0)
20285 : "memory");
20286 + pax_close_userland();
20287 return err;
20288 }
20289
20290 static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
20291 {
20292 int err;
20293 - struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
20294 + struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
20295 u32 lmask = mask;
20296 u32 hmask = mask >> 32;
20297
20298 + pax_open_userland();
20299 __asm__ __volatile__(ASM_STAC "\n"
20300 - "1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
20301 + "1:"
20302 + __copyuser_seg
20303 + ".byte " REX_PREFIX "0x0f,0xae,0x2f\n"
20304 "2: " ASM_CLAC "\n"
20305 ".section .fixup,\"ax\"\n"
20306 "3: movl $-1,%[err]\n"
20307 @@ -114,6 +121,7 @@ static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
20308 : [err] "=r" (err)
20309 : "D" (xstate), "a" (lmask), "d" (hmask), "0" (0)
20310 : "memory"); /* memory required? */
20311 + pax_close_userland();
20312 return err;
20313 }
20314
20315 diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
20316 index bbae024..e1528f9 100644
20317 --- a/arch/x86/include/uapi/asm/e820.h
20318 +++ b/arch/x86/include/uapi/asm/e820.h
20319 @@ -63,7 +63,7 @@ struct e820map {
20320 #define ISA_START_ADDRESS 0xa0000
20321 #define ISA_END_ADDRESS 0x100000
20322
20323 -#define BIOS_BEGIN 0x000a0000
20324 +#define BIOS_BEGIN 0x000c0000
20325 #define BIOS_END 0x00100000
20326
20327 #define BIOS_ROM_BASE 0xffe00000
20328 diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
20329 index 7b0a55a..ad115bf 100644
20330 --- a/arch/x86/include/uapi/asm/ptrace-abi.h
20331 +++ b/arch/x86/include/uapi/asm/ptrace-abi.h
20332 @@ -49,7 +49,6 @@
20333 #define EFLAGS 144
20334 #define RSP 152
20335 #define SS 160
20336 -#define ARGOFFSET R11
20337 #endif /* __ASSEMBLY__ */
20338
20339 /* top of stack page */
20340 diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
20341 index f4d9600..b45af01 100644
20342 --- a/arch/x86/kernel/Makefile
20343 +++ b/arch/x86/kernel/Makefile
20344 @@ -24,7 +24,7 @@ obj-y += time.o ioport.o ldt.o dumpstack.o nmi.o
20345 obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o
20346 obj-$(CONFIG_IRQ_WORK) += irq_work.o
20347 obj-y += probe_roms.o
20348 -obj-$(CONFIG_X86_32) += i386_ksyms_32.o
20349 +obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
20350 obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
20351 obj-y += syscall_$(BITS).o vsyscall_gtod.o
20352 obj-$(CONFIG_X86_64) += vsyscall_64.o
20353 diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
20354 index 86281ff..e046fc2 100644
20355 --- a/arch/x86/kernel/acpi/boot.c
20356 +++ b/arch/x86/kernel/acpi/boot.c
20357 @@ -1296,7 +1296,7 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
20358 * If your system is blacklisted here, but you find that acpi=force
20359 * works for you, please contact linux-acpi@vger.kernel.org
20360 */
20361 -static struct dmi_system_id __initdata acpi_dmi_table[] = {
20362 +static const struct dmi_system_id __initconst acpi_dmi_table[] = {
20363 /*
20364 * Boxes that need ACPI disabled
20365 */
20366 @@ -1371,7 +1371,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
20367 };
20368
20369 /* second table for DMI checks that should run after early-quirks */
20370 -static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
20371 +static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
20372 /*
20373 * HP laptops which use a DSDT reporting as HP/SB400/10000,
20374 * which includes some code which overrides all temperature
20375 diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
20376 index 3136820..e2c6577 100644
20377 --- a/arch/x86/kernel/acpi/sleep.c
20378 +++ b/arch/x86/kernel/acpi/sleep.c
20379 @@ -99,8 +99,12 @@ int x86_acpi_suspend_lowlevel(void)
20380 #else /* CONFIG_64BIT */
20381 #ifdef CONFIG_SMP
20382 stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
20383 +
20384 + pax_open_kernel();
20385 early_gdt_descr.address =
20386 (unsigned long)get_cpu_gdt_table(smp_processor_id());
20387 + pax_close_kernel();
20388 +
20389 initial_gs = per_cpu_offset(smp_processor_id());
20390 #endif
20391 initial_code = (unsigned long)wakeup_long64;
20392 diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
20393 index 665c6b7..eae4d56 100644
20394 --- a/arch/x86/kernel/acpi/wakeup_32.S
20395 +++ b/arch/x86/kernel/acpi/wakeup_32.S
20396 @@ -29,13 +29,11 @@ wakeup_pmode_return:
20397 # and restore the stack ... but you need gdt for this to work
20398 movl saved_context_esp, %esp
20399
20400 - movl %cs:saved_magic, %eax
20401 - cmpl $0x12345678, %eax
20402 + cmpl $0x12345678, saved_magic
20403 jne bogus_magic
20404
20405 # jump to place where we left off
20406 - movl saved_eip, %eax
20407 - jmp *%eax
20408 + jmp *(saved_eip)
20409
20410 bogus_magic:
20411 jmp bogus_magic
20412 diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
20413 index df94598..b7162f9 100644
20414 --- a/arch/x86/kernel/alternative.c
20415 +++ b/arch/x86/kernel/alternative.c
20416 @@ -269,6 +269,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20417 */
20418 for (a = start; a < end; a++) {
20419 instr = (u8 *)&a->instr_offset + a->instr_offset;
20420 +
20421 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20422 + instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20423 + if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20424 + instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20425 +#endif
20426 +
20427 replacement = (u8 *)&a->repl_offset + a->repl_offset;
20428 BUG_ON(a->replacementlen > a->instrlen);
20429 BUG_ON(a->instrlen > sizeof(insnbuf));
20430 @@ -285,6 +292,11 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20431 add_nops(insnbuf + a->replacementlen,
20432 a->instrlen - a->replacementlen);
20433
20434 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20435 + if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20436 + instr = ktva_ktla(instr);
20437 +#endif
20438 +
20439 text_poke_early(instr, insnbuf, a->instrlen);
20440 }
20441 }
20442 @@ -300,10 +312,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
20443 for (poff = start; poff < end; poff++) {
20444 u8 *ptr = (u8 *)poff + *poff;
20445
20446 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20447 + ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20448 + if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20449 + ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20450 +#endif
20451 +
20452 if (!*poff || ptr < text || ptr >= text_end)
20453 continue;
20454 /* turn DS segment override prefix into lock prefix */
20455 - if (*ptr == 0x3e)
20456 + if (*ktla_ktva(ptr) == 0x3e)
20457 text_poke(ptr, ((unsigned char []){0xf0}), 1);
20458 }
20459 mutex_unlock(&text_mutex);
20460 @@ -318,10 +336,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
20461 for (poff = start; poff < end; poff++) {
20462 u8 *ptr = (u8 *)poff + *poff;
20463
20464 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20465 + ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20466 + if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20467 + ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20468 +#endif
20469 +
20470 if (!*poff || ptr < text || ptr >= text_end)
20471 continue;
20472 /* turn lock prefix into DS segment override prefix */
20473 - if (*ptr == 0xf0)
20474 + if (*ktla_ktva(ptr) == 0xf0)
20475 text_poke(ptr, ((unsigned char []){0x3E}), 1);
20476 }
20477 mutex_unlock(&text_mutex);
20478 @@ -458,7 +482,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
20479
20480 BUG_ON(p->len > MAX_PATCH_LEN);
20481 /* prep the buffer with the original instructions */
20482 - memcpy(insnbuf, p->instr, p->len);
20483 + memcpy(insnbuf, ktla_ktva(p->instr), p->len);
20484 used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
20485 (unsigned long)p->instr, p->len);
20486
20487 @@ -505,7 +529,7 @@ void __init alternative_instructions(void)
20488 if (!uniproc_patched || num_possible_cpus() == 1)
20489 free_init_pages("SMP alternatives",
20490 (unsigned long)__smp_locks,
20491 - (unsigned long)__smp_locks_end);
20492 + PAGE_ALIGN((unsigned long)__smp_locks_end));
20493 #endif
20494
20495 apply_paravirt(__parainstructions, __parainstructions_end);
20496 @@ -525,13 +549,17 @@ void __init alternative_instructions(void)
20497 * instructions. And on the local CPU you need to be protected again NMI or MCE
20498 * handlers seeing an inconsistent instruction while you patch.
20499 */
20500 -void *__init_or_module text_poke_early(void *addr, const void *opcode,
20501 +void *__kprobes text_poke_early(void *addr, const void *opcode,
20502 size_t len)
20503 {
20504 unsigned long flags;
20505 local_irq_save(flags);
20506 - memcpy(addr, opcode, len);
20507 +
20508 + pax_open_kernel();
20509 + memcpy(ktla_ktva(addr), opcode, len);
20510 sync_core();
20511 + pax_close_kernel();
20512 +
20513 local_irq_restore(flags);
20514 /* Could also do a CLFLUSH here to speed up CPU recovery; but
20515 that causes hangs on some VIA CPUs. */
20516 @@ -553,36 +581,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
20517 */
20518 void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
20519 {
20520 - unsigned long flags;
20521 - char *vaddr;
20522 + unsigned char *vaddr = ktla_ktva(addr);
20523 struct page *pages[2];
20524 - int i;
20525 + size_t i;
20526
20527 if (!core_kernel_text((unsigned long)addr)) {
20528 - pages[0] = vmalloc_to_page(addr);
20529 - pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
20530 + pages[0] = vmalloc_to_page(vaddr);
20531 + pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
20532 } else {
20533 - pages[0] = virt_to_page(addr);
20534 + pages[0] = virt_to_page(vaddr);
20535 WARN_ON(!PageReserved(pages[0]));
20536 - pages[1] = virt_to_page(addr + PAGE_SIZE);
20537 + pages[1] = virt_to_page(vaddr + PAGE_SIZE);
20538 }
20539 BUG_ON(!pages[0]);
20540 - local_irq_save(flags);
20541 - set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
20542 - if (pages[1])
20543 - set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
20544 - vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
20545 - memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
20546 - clear_fixmap(FIX_TEXT_POKE0);
20547 - if (pages[1])
20548 - clear_fixmap(FIX_TEXT_POKE1);
20549 - local_flush_tlb();
20550 - sync_core();
20551 - /* Could also do a CLFLUSH here to speed up CPU recovery; but
20552 - that causes hangs on some VIA CPUs. */
20553 + text_poke_early(addr, opcode, len);
20554 for (i = 0; i < len; i++)
20555 - BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
20556 - local_irq_restore(flags);
20557 + BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
20558 return addr;
20559 }
20560
20561 @@ -602,7 +616,7 @@ int poke_int3_handler(struct pt_regs *regs)
20562 if (likely(!bp_patching_in_progress))
20563 return 0;
20564
20565 - if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
20566 + if (user_mode(regs) || regs->ip != (unsigned long)bp_int3_addr)
20567 return 0;
20568
20569 /* set up the specified breakpoint handler */
20570 @@ -636,7 +650,7 @@ int poke_int3_handler(struct pt_regs *regs)
20571 */
20572 void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
20573 {
20574 - unsigned char int3 = 0xcc;
20575 + const unsigned char int3 = 0xcc;
20576
20577 bp_int3_handler = handler;
20578 bp_int3_addr = (u8 *)addr + sizeof(int3);
20579 diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
20580 index ad28db7..c538b2c 100644
20581 --- a/arch/x86/kernel/apic/apic.c
20582 +++ b/arch/x86/kernel/apic/apic.c
20583 @@ -201,7 +201,7 @@ int first_system_vector = 0xfe;
20584 /*
20585 * Debug level, exported for io_apic.c
20586 */
20587 -unsigned int apic_verbosity;
20588 +int apic_verbosity;
20589
20590 int pic_mode;
20591
20592 @@ -2000,7 +2000,7 @@ static inline void __smp_error_interrupt(struct pt_regs *regs)
20593 apic_write(APIC_ESR, 0);
20594 v = apic_read(APIC_ESR);
20595 ack_APIC_irq();
20596 - atomic_inc(&irq_err_count);
20597 + atomic_inc_unchecked(&irq_err_count);
20598
20599 apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
20600 smp_processor_id(), v);
20601 diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
20602 index 7c1b294..e71d27f 100644
20603 --- a/arch/x86/kernel/apic/apic_flat_64.c
20604 +++ b/arch/x86/kernel/apic/apic_flat_64.c
20605 @@ -154,7 +154,7 @@ static int flat_probe(void)
20606 return 1;
20607 }
20608
20609 -static struct apic apic_flat = {
20610 +static struct apic apic_flat __read_only = {
20611 .name = "flat",
20612 .probe = flat_probe,
20613 .acpi_madt_oem_check = flat_acpi_madt_oem_check,
20614 @@ -268,7 +268,7 @@ static int physflat_probe(void)
20615 return 0;
20616 }
20617
20618 -static struct apic apic_physflat = {
20619 +static struct apic apic_physflat __read_only = {
20620
20621 .name = "physical flat",
20622 .probe = physflat_probe,
20623 diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
20624 index 8c7c982..a225910 100644
20625 --- a/arch/x86/kernel/apic/apic_noop.c
20626 +++ b/arch/x86/kernel/apic/apic_noop.c
20627 @@ -118,7 +118,7 @@ static void noop_apic_write(u32 reg, u32 v)
20628 WARN_ON_ONCE(cpu_has_apic && !disable_apic);
20629 }
20630
20631 -struct apic apic_noop = {
20632 +struct apic apic_noop __read_only = {
20633 .name = "noop",
20634 .probe = noop_probe,
20635 .acpi_madt_oem_check = NULL,
20636 diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
20637 index e4840aa..e7d9dac 100644
20638 --- a/arch/x86/kernel/apic/bigsmp_32.c
20639 +++ b/arch/x86/kernel/apic/bigsmp_32.c
20640 @@ -152,7 +152,7 @@ static int probe_bigsmp(void)
20641 return dmi_bigsmp;
20642 }
20643
20644 -static struct apic apic_bigsmp = {
20645 +static struct apic apic_bigsmp __read_only = {
20646
20647 .name = "bigsmp",
20648 .probe = probe_bigsmp,
20649 diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
20650 index 992060e..ecdc3b3 100644
20651 --- a/arch/x86/kernel/apic/io_apic.c
20652 +++ b/arch/x86/kernel/apic/io_apic.c
20653 @@ -1057,7 +1057,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin,
20654 }
20655 EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
20656
20657 -void lock_vector_lock(void)
20658 +void lock_vector_lock(void) __acquires(vector_lock)
20659 {
20660 /* Used to the online set of cpus does not change
20661 * during assign_irq_vector.
20662 @@ -1065,7 +1065,7 @@ void lock_vector_lock(void)
20663 raw_spin_lock(&vector_lock);
20664 }
20665
20666 -void unlock_vector_lock(void)
20667 +void unlock_vector_lock(void) __releases(vector_lock)
20668 {
20669 raw_spin_unlock(&vector_lock);
20670 }
20671 @@ -2364,7 +2364,7 @@ static void ack_apic_edge(struct irq_data *data)
20672 ack_APIC_irq();
20673 }
20674
20675 -atomic_t irq_mis_count;
20676 +atomic_unchecked_t irq_mis_count;
20677
20678 #ifdef CONFIG_GENERIC_PENDING_IRQ
20679 static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
20680 @@ -2505,7 +2505,7 @@ static void ack_apic_level(struct irq_data *data)
20681 * at the cpu.
20682 */
20683 if (!(v & (1 << (i & 0x1f)))) {
20684 - atomic_inc(&irq_mis_count);
20685 + atomic_inc_unchecked(&irq_mis_count);
20686
20687 eoi_ioapic_irq(irq, cfg);
20688 }
20689 diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
20690 index cceb352..a635fd8 100644
20691 --- a/arch/x86/kernel/apic/probe_32.c
20692 +++ b/arch/x86/kernel/apic/probe_32.c
20693 @@ -72,7 +72,7 @@ static int probe_default(void)
20694 return 1;
20695 }
20696
20697 -static struct apic apic_default = {
20698 +static struct apic apic_default __read_only = {
20699
20700 .name = "default",
20701 .probe = probe_default,
20702 diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
20703 index e66766b..1c008ba 100644
20704 --- a/arch/x86/kernel/apic/x2apic_cluster.c
20705 +++ b/arch/x86/kernel/apic/x2apic_cluster.c
20706 @@ -182,7 +182,7 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
20707 return notifier_from_errno(err);
20708 }
20709
20710 -static struct notifier_block __refdata x2apic_cpu_notifier = {
20711 +static struct notifier_block x2apic_cpu_notifier = {
20712 .notifier_call = update_clusterinfo,
20713 };
20714
20715 @@ -234,7 +234,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
20716 cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
20717 }
20718
20719 -static struct apic apic_x2apic_cluster = {
20720 +static struct apic apic_x2apic_cluster __read_only = {
20721
20722 .name = "cluster x2apic",
20723 .probe = x2apic_cluster_probe,
20724 diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
20725 index 6d600eb..0300c00 100644
20726 --- a/arch/x86/kernel/apic/x2apic_phys.c
20727 +++ b/arch/x86/kernel/apic/x2apic_phys.c
20728 @@ -88,7 +88,7 @@ static int x2apic_phys_probe(void)
20729 return apic == &apic_x2apic_phys;
20730 }
20731
20732 -static struct apic apic_x2apic_phys = {
20733 +static struct apic apic_x2apic_phys __read_only = {
20734
20735 .name = "physical x2apic",
20736 .probe = x2apic_phys_probe,
20737 diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
20738 index 7834389..4ffc9c8 100644
20739 --- a/arch/x86/kernel/apic/x2apic_uv_x.c
20740 +++ b/arch/x86/kernel/apic/x2apic_uv_x.c
20741 @@ -350,7 +350,7 @@ static int uv_probe(void)
20742 return apic == &apic_x2apic_uv_x;
20743 }
20744
20745 -static struct apic __refdata apic_x2apic_uv_x = {
20746 +static struct apic apic_x2apic_uv_x __read_only = {
20747
20748 .name = "UV large system",
20749 .probe = uv_probe,
20750 diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
20751 index 3ab0343..814c4787 100644
20752 --- a/arch/x86/kernel/apm_32.c
20753 +++ b/arch/x86/kernel/apm_32.c
20754 @@ -433,7 +433,7 @@ static DEFINE_MUTEX(apm_mutex);
20755 * This is for buggy BIOS's that refer to (real mode) segment 0x40
20756 * even though they are called in protected mode.
20757 */
20758 -static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
20759 +static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
20760 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
20761
20762 static const char driver_version[] = "1.16ac"; /* no spaces */
20763 @@ -611,7 +611,10 @@ static long __apm_bios_call(void *_call)
20764 BUG_ON(cpu != 0);
20765 gdt = get_cpu_gdt_table(cpu);
20766 save_desc_40 = gdt[0x40 / 8];
20767 +
20768 + pax_open_kernel();
20769 gdt[0x40 / 8] = bad_bios_desc;
20770 + pax_close_kernel();
20771
20772 apm_irq_save(flags);
20773 APM_DO_SAVE_SEGS;
20774 @@ -620,7 +623,11 @@ static long __apm_bios_call(void *_call)
20775 &call->esi);
20776 APM_DO_RESTORE_SEGS;
20777 apm_irq_restore(flags);
20778 +
20779 + pax_open_kernel();
20780 gdt[0x40 / 8] = save_desc_40;
20781 + pax_close_kernel();
20782 +
20783 put_cpu();
20784
20785 return call->eax & 0xff;
20786 @@ -687,7 +694,10 @@ static long __apm_bios_call_simple(void *_call)
20787 BUG_ON(cpu != 0);
20788 gdt = get_cpu_gdt_table(cpu);
20789 save_desc_40 = gdt[0x40 / 8];
20790 +
20791 + pax_open_kernel();
20792 gdt[0x40 / 8] = bad_bios_desc;
20793 + pax_close_kernel();
20794
20795 apm_irq_save(flags);
20796 APM_DO_SAVE_SEGS;
20797 @@ -695,7 +705,11 @@ static long __apm_bios_call_simple(void *_call)
20798 &call->eax);
20799 APM_DO_RESTORE_SEGS;
20800 apm_irq_restore(flags);
20801 +
20802 + pax_open_kernel();
20803 gdt[0x40 / 8] = save_desc_40;
20804 + pax_close_kernel();
20805 +
20806 put_cpu();
20807 return error;
20808 }
20809 @@ -2362,12 +2376,15 @@ static int __init apm_init(void)
20810 * code to that CPU.
20811 */
20812 gdt = get_cpu_gdt_table(0);
20813 +
20814 + pax_open_kernel();
20815 set_desc_base(&gdt[APM_CS >> 3],
20816 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
20817 set_desc_base(&gdt[APM_CS_16 >> 3],
20818 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
20819 set_desc_base(&gdt[APM_DS >> 3],
20820 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
20821 + pax_close_kernel();
20822
20823 proc_create("apm", 0, NULL, &apm_file_ops);
20824
20825 diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
20826 index 9f6b934..cf5ffb3 100644
20827 --- a/arch/x86/kernel/asm-offsets.c
20828 +++ b/arch/x86/kernel/asm-offsets.c
20829 @@ -32,6 +32,8 @@ void common(void) {
20830 OFFSET(TI_flags, thread_info, flags);
20831 OFFSET(TI_status, thread_info, status);
20832 OFFSET(TI_addr_limit, thread_info, addr_limit);
20833 + OFFSET(TI_lowest_stack, thread_info, lowest_stack);
20834 + DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
20835
20836 BLANK();
20837 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
20838 @@ -52,8 +54,26 @@ void common(void) {
20839 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
20840 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
20841 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
20842 +
20843 +#ifdef CONFIG_PAX_KERNEXEC
20844 + OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
20845 #endif
20846
20847 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20848 + OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
20849 + OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
20850 +#ifdef CONFIG_X86_64
20851 + OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
20852 +#endif
20853 +#endif
20854 +
20855 +#endif
20856 +
20857 + BLANK();
20858 + DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
20859 + DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
20860 + DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
20861 +
20862 #ifdef CONFIG_XEN
20863 BLANK();
20864 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
20865 diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
20866 index e7c798b..2b2019b 100644
20867 --- a/arch/x86/kernel/asm-offsets_64.c
20868 +++ b/arch/x86/kernel/asm-offsets_64.c
20869 @@ -77,6 +77,7 @@ int main(void)
20870 BLANK();
20871 #undef ENTRY
20872
20873 + DEFINE(TSS_size, sizeof(struct tss_struct));
20874 OFFSET(TSS_ist, tss_struct, x86_tss.ist);
20875 BLANK();
20876
20877 diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
20878 index 7fd54f0..0691410 100644
20879 --- a/arch/x86/kernel/cpu/Makefile
20880 +++ b/arch/x86/kernel/cpu/Makefile
20881 @@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
20882 CFLAGS_REMOVE_perf_event.o = -pg
20883 endif
20884
20885 -# Make sure load_percpu_segment has no stackprotector
20886 -nostackp := $(call cc-option, -fno-stack-protector)
20887 -CFLAGS_common.o := $(nostackp)
20888 -
20889 obj-y := intel_cacheinfo.o scattered.o topology.o
20890 obj-y += proc.o capflags.o powerflags.o common.o
20891 obj-y += rdrand.o
20892 diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
20893 index ce8b8ff..d7d8851 100644
20894 --- a/arch/x86/kernel/cpu/amd.c
20895 +++ b/arch/x86/kernel/cpu/amd.c
20896 @@ -728,7 +728,7 @@ static void init_amd(struct cpuinfo_x86 *c)
20897 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
20898 {
20899 /* AMD errata T13 (order #21922) */
20900 - if ((c->x86 == 6)) {
20901 + if (c->x86 == 6) {
20902 /* Duron Rev A0 */
20903 if (c->x86_model == 3 && c->x86_mask == 0)
20904 size = 64;
20905 diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
20906 index a135239..41fb30a 100644
20907 --- a/arch/x86/kernel/cpu/common.c
20908 +++ b/arch/x86/kernel/cpu/common.c
20909 @@ -88,60 +88,6 @@ static const struct cpu_dev default_cpu = {
20910
20911 static const struct cpu_dev *this_cpu = &default_cpu;
20912
20913 -DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
20914 -#ifdef CONFIG_X86_64
20915 - /*
20916 - * We need valid kernel segments for data and code in long mode too
20917 - * IRET will check the segment types kkeil 2000/10/28
20918 - * Also sysret mandates a special GDT layout
20919 - *
20920 - * TLS descriptors are currently at a different place compared to i386.
20921 - * Hopefully nobody expects them at a fixed place (Wine?)
20922 - */
20923 - [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
20924 - [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
20925 - [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
20926 - [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
20927 - [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
20928 - [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
20929 -#else
20930 - [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
20931 - [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
20932 - [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
20933 - [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
20934 - /*
20935 - * Segments used for calling PnP BIOS have byte granularity.
20936 - * They code segments and data segments have fixed 64k limits,
20937 - * the transfer segment sizes are set at run time.
20938 - */
20939 - /* 32-bit code */
20940 - [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
20941 - /* 16-bit code */
20942 - [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
20943 - /* 16-bit data */
20944 - [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff),
20945 - /* 16-bit data */
20946 - [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0),
20947 - /* 16-bit data */
20948 - [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0),
20949 - /*
20950 - * The APM segments have byte granularity and their bases
20951 - * are set at run time. All have 64k limits.
20952 - */
20953 - /* 32-bit code */
20954 - [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
20955 - /* 16-bit code */
20956 - [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
20957 - /* data */
20958 - [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff),
20959 -
20960 - [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
20961 - [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
20962 - GDT_STACK_CANARY_INIT
20963 -#endif
20964 -} };
20965 -EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
20966 -
20967 static int __init x86_xsave_setup(char *s)
20968 {
20969 setup_clear_cpu_cap(X86_FEATURE_XSAVE);
20970 @@ -293,6 +239,59 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
20971 }
20972 }
20973
20974 +#ifdef CONFIG_X86_64
20975 +static __init int setup_disable_pcid(char *arg)
20976 +{
20977 + setup_clear_cpu_cap(X86_FEATURE_PCID);
20978 + setup_clear_cpu_cap(X86_FEATURE_INVPCID);
20979 +
20980 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20981 + if (clone_pgd_mask != ~(pgdval_t)0UL)
20982 + pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
20983 +#endif
20984 +
20985 + return 1;
20986 +}
20987 +__setup("nopcid", setup_disable_pcid);
20988 +
20989 +static void setup_pcid(struct cpuinfo_x86 *c)
20990 +{
20991 + if (!cpu_has(c, X86_FEATURE_PCID)) {
20992 + clear_cpu_cap(c, X86_FEATURE_INVPCID);
20993 +
20994 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20995 + if (clone_pgd_mask != ~(pgdval_t)0UL) {
20996 + pax_open_kernel();
20997 + pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
20998 + pax_close_kernel();
20999 + printk("PAX: slow and weak UDEREF enabled\n");
21000 + } else
21001 + printk("PAX: UDEREF disabled\n");
21002 +#endif
21003 +
21004 + return;
21005 + }
21006 +
21007 + printk("PAX: PCID detected\n");
21008 + set_in_cr4(X86_CR4_PCIDE);
21009 +
21010 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21011 + pax_open_kernel();
21012 + clone_pgd_mask = ~(pgdval_t)0UL;
21013 + pax_close_kernel();
21014 + if (pax_user_shadow_base)
21015 + printk("PAX: weak UDEREF enabled\n");
21016 + else {
21017 + set_cpu_cap(c, X86_FEATURE_STRONGUDEREF);
21018 + printk("PAX: strong UDEREF enabled\n");
21019 + }
21020 +#endif
21021 +
21022 + if (cpu_has(c, X86_FEATURE_INVPCID))
21023 + printk("PAX: INVPCID detected\n");
21024 +}
21025 +#endif
21026 +
21027 /*
21028 * Some CPU features depend on higher CPUID levels, which may not always
21029 * be available due to CPUID level capping or broken virtualization
21030 @@ -393,7 +392,7 @@ void switch_to_new_gdt(int cpu)
21031 {
21032 struct desc_ptr gdt_descr;
21033
21034 - gdt_descr.address = (long)get_cpu_gdt_table(cpu);
21035 + gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
21036 gdt_descr.size = GDT_SIZE - 1;
21037 load_gdt(&gdt_descr);
21038 /* Reload the per-cpu base */
21039 @@ -883,6 +882,10 @@ static void identify_cpu(struct cpuinfo_x86 *c)
21040 setup_smep(c);
21041 setup_smap(c);
21042
21043 +#ifdef CONFIG_X86_64
21044 + setup_pcid(c);
21045 +#endif
21046 +
21047 /*
21048 * The vendor-specific functions might have changed features.
21049 * Now we do "generic changes."
21050 @@ -891,6 +894,10 @@ static void identify_cpu(struct cpuinfo_x86 *c)
21051 /* Filter out anything that depends on CPUID levels we don't have */
21052 filter_cpuid_features(c, true);
21053
21054 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
21055 + setup_clear_cpu_cap(X86_FEATURE_SEP);
21056 +#endif
21057 +
21058 /* If the model name is still unset, do table lookup. */
21059 if (!c->x86_model_id[0]) {
21060 const char *p;
21061 @@ -1079,14 +1086,16 @@ static __init int setup_disablecpuid(char *arg)
21062 }
21063 __setup("clearcpuid=", setup_disablecpuid);
21064
21065 +DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
21066 +EXPORT_PER_CPU_SYMBOL(current_tinfo);
21067 +
21068 DEFINE_PER_CPU(unsigned long, kernel_stack) =
21069 - (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
21070 + (unsigned long)&init_thread_union - 16 + THREAD_SIZE;
21071 EXPORT_PER_CPU_SYMBOL(kernel_stack);
21072
21073 #ifdef CONFIG_X86_64
21074 -struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21075 -struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1,
21076 - (unsigned long) debug_idt_table };
21077 +struct desc_ptr idt_descr __read_only = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21078 +const struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) debug_idt_table };
21079
21080 DEFINE_PER_CPU_FIRST(union irq_stack_union,
21081 irq_stack_union) __aligned(PAGE_SIZE) __visible;
21082 @@ -1246,7 +1255,7 @@ void cpu_init(void)
21083 load_ucode_ap();
21084
21085 cpu = stack_smp_processor_id();
21086 - t = &per_cpu(init_tss, cpu);
21087 + t = init_tss + cpu;
21088 oist = &per_cpu(orig_ist, cpu);
21089
21090 #ifdef CONFIG_NUMA
21091 @@ -1281,7 +1290,6 @@ void cpu_init(void)
21092 wrmsrl(MSR_KERNEL_GS_BASE, 0);
21093 barrier();
21094
21095 - x86_configure_nx();
21096 enable_x2apic();
21097
21098 /*
21099 @@ -1333,7 +1341,7 @@ void cpu_init(void)
21100 {
21101 int cpu = smp_processor_id();
21102 struct task_struct *curr = current;
21103 - struct tss_struct *t = &per_cpu(init_tss, cpu);
21104 + struct tss_struct *t = init_tss + cpu;
21105 struct thread_struct *thread = &curr->thread;
21106
21107 show_ucode_info_early();
21108 diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
21109 index a952e9c..58a4cbb 100644
21110 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c
21111 +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
21112 @@ -1014,6 +1014,22 @@ static struct attribute *default_attrs[] = {
21113 };
21114
21115 #ifdef CONFIG_AMD_NB
21116 +static struct attribute *default_attrs_amd_nb[] = {
21117 + &type.attr,
21118 + &level.attr,
21119 + &coherency_line_size.attr,
21120 + &physical_line_partition.attr,
21121 + &ways_of_associativity.attr,
21122 + &number_of_sets.attr,
21123 + &size.attr,
21124 + &shared_cpu_map.attr,
21125 + &shared_cpu_list.attr,
21126 + NULL,
21127 + NULL,
21128 + NULL,
21129 + NULL
21130 +};
21131 +
21132 static struct attribute **amd_l3_attrs(void)
21133 {
21134 static struct attribute **attrs;
21135 @@ -1024,18 +1040,7 @@ static struct attribute **amd_l3_attrs(void)
21136
21137 n = ARRAY_SIZE(default_attrs);
21138
21139 - if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
21140 - n += 2;
21141 -
21142 - if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
21143 - n += 1;
21144 -
21145 - attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
21146 - if (attrs == NULL)
21147 - return attrs = default_attrs;
21148 -
21149 - for (n = 0; default_attrs[n]; n++)
21150 - attrs[n] = default_attrs[n];
21151 + attrs = default_attrs_amd_nb;
21152
21153 if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
21154 attrs[n++] = &cache_disable_0.attr;
21155 @@ -1086,6 +1091,13 @@ static struct kobj_type ktype_cache = {
21156 .default_attrs = default_attrs,
21157 };
21158
21159 +#ifdef CONFIG_AMD_NB
21160 +static struct kobj_type ktype_cache_amd_nb = {
21161 + .sysfs_ops = &sysfs_ops,
21162 + .default_attrs = default_attrs_amd_nb,
21163 +};
21164 +#endif
21165 +
21166 static struct kobj_type ktype_percpu_entry = {
21167 .sysfs_ops = &sysfs_ops,
21168 };
21169 @@ -1151,20 +1163,26 @@ static int cache_add_dev(struct device *dev)
21170 return retval;
21171 }
21172
21173 +#ifdef CONFIG_AMD_NB
21174 + amd_l3_attrs();
21175 +#endif
21176 +
21177 for (i = 0; i < num_cache_leaves; i++) {
21178 + struct kobj_type *ktype;
21179 +
21180 this_object = INDEX_KOBJECT_PTR(cpu, i);
21181 this_object->cpu = cpu;
21182 this_object->index = i;
21183
21184 this_leaf = CPUID4_INFO_IDX(cpu, i);
21185
21186 - ktype_cache.default_attrs = default_attrs;
21187 + ktype = &ktype_cache;
21188 #ifdef CONFIG_AMD_NB
21189 if (this_leaf->base.nb)
21190 - ktype_cache.default_attrs = amd_l3_attrs();
21191 + ktype = &ktype_cache_amd_nb;
21192 #endif
21193 retval = kobject_init_and_add(&(this_object->kobj),
21194 - &ktype_cache,
21195 + ktype,
21196 per_cpu(ici_cache_kobject, cpu),
21197 "index%1lu", i);
21198 if (unlikely(retval)) {
21199 diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
21200 index 68317c8..c860d41 100644
21201 --- a/arch/x86/kernel/cpu/mcheck/mce.c
21202 +++ b/arch/x86/kernel/cpu/mcheck/mce.c
21203 @@ -45,6 +45,7 @@
21204 #include <asm/processor.h>
21205 #include <asm/mce.h>
21206 #include <asm/msr.h>
21207 +#include <asm/local.h>
21208
21209 #include "mce-internal.h"
21210
21211 @@ -261,7 +262,7 @@ static void print_mce(struct mce *m)
21212 !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
21213 m->cs, m->ip);
21214
21215 - if (m->cs == __KERNEL_CS)
21216 + if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
21217 print_symbol("{%s}", m->ip);
21218 pr_cont("\n");
21219 }
21220 @@ -294,10 +295,10 @@ static void print_mce(struct mce *m)
21221
21222 #define PANIC_TIMEOUT 5 /* 5 seconds */
21223
21224 -static atomic_t mce_paniced;
21225 +static atomic_unchecked_t mce_paniced;
21226
21227 static int fake_panic;
21228 -static atomic_t mce_fake_paniced;
21229 +static atomic_unchecked_t mce_fake_paniced;
21230
21231 /* Panic in progress. Enable interrupts and wait for final IPI */
21232 static void wait_for_panic(void)
21233 @@ -321,7 +322,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
21234 /*
21235 * Make sure only one CPU runs in machine check panic
21236 */
21237 - if (atomic_inc_return(&mce_paniced) > 1)
21238 + if (atomic_inc_return_unchecked(&mce_paniced) > 1)
21239 wait_for_panic();
21240 barrier();
21241
21242 @@ -329,7 +330,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
21243 console_verbose();
21244 } else {
21245 /* Don't log too much for fake panic */
21246 - if (atomic_inc_return(&mce_fake_paniced) > 1)
21247 + if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1)
21248 return;
21249 }
21250 /* First print corrected ones that are still unlogged */
21251 @@ -368,7 +369,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
21252 if (!fake_panic) {
21253 if (panic_timeout == 0)
21254 panic_timeout = mca_cfg.panic_timeout;
21255 - panic(msg);
21256 + panic("%s", msg);
21257 } else
21258 pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
21259 }
21260 @@ -699,7 +700,7 @@ static int mce_timed_out(u64 *t)
21261 * might have been modified by someone else.
21262 */
21263 rmb();
21264 - if (atomic_read(&mce_paniced))
21265 + if (atomic_read_unchecked(&mce_paniced))
21266 wait_for_panic();
21267 if (!mca_cfg.monarch_timeout)
21268 goto out;
21269 @@ -1680,7 +1681,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
21270 }
21271
21272 /* Call the installed machine check handler for this CPU setup. */
21273 -void (*machine_check_vector)(struct pt_regs *, long error_code) =
21274 +void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
21275 unexpected_machine_check;
21276
21277 /*
21278 @@ -1703,7 +1704,9 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21279 return;
21280 }
21281
21282 + pax_open_kernel();
21283 machine_check_vector = do_machine_check;
21284 + pax_close_kernel();
21285
21286 __mcheck_cpu_init_generic();
21287 __mcheck_cpu_init_vendor(c);
21288 @@ -1717,7 +1720,7 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21289 */
21290
21291 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
21292 -static int mce_chrdev_open_count; /* #times opened */
21293 +static local_t mce_chrdev_open_count; /* #times opened */
21294 static int mce_chrdev_open_exclu; /* already open exclusive? */
21295
21296 static int mce_chrdev_open(struct inode *inode, struct file *file)
21297 @@ -1725,7 +1728,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21298 spin_lock(&mce_chrdev_state_lock);
21299
21300 if (mce_chrdev_open_exclu ||
21301 - (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
21302 + (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
21303 spin_unlock(&mce_chrdev_state_lock);
21304
21305 return -EBUSY;
21306 @@ -1733,7 +1736,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21307
21308 if (file->f_flags & O_EXCL)
21309 mce_chrdev_open_exclu = 1;
21310 - mce_chrdev_open_count++;
21311 + local_inc(&mce_chrdev_open_count);
21312
21313 spin_unlock(&mce_chrdev_state_lock);
21314
21315 @@ -1744,7 +1747,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
21316 {
21317 spin_lock(&mce_chrdev_state_lock);
21318
21319 - mce_chrdev_open_count--;
21320 + local_dec(&mce_chrdev_open_count);
21321 mce_chrdev_open_exclu = 0;
21322
21323 spin_unlock(&mce_chrdev_state_lock);
21324 @@ -2420,7 +2423,7 @@ static __init void mce_init_banks(void)
21325
21326 for (i = 0; i < mca_cfg.banks; i++) {
21327 struct mce_bank *b = &mce_banks[i];
21328 - struct device_attribute *a = &b->attr;
21329 + device_attribute_no_const *a = &b->attr;
21330
21331 sysfs_attr_init(&a->attr);
21332 a->attr.name = b->attrname;
21333 @@ -2492,7 +2495,7 @@ struct dentry *mce_get_debugfs_dir(void)
21334 static void mce_reset(void)
21335 {
21336 cpu_missing = 0;
21337 - atomic_set(&mce_fake_paniced, 0);
21338 + atomic_set_unchecked(&mce_fake_paniced, 0);
21339 atomic_set(&mce_executing, 0);
21340 atomic_set(&mce_callin, 0);
21341 atomic_set(&global_nwo, 0);
21342 diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
21343 index a304298..49b6d06 100644
21344 --- a/arch/x86/kernel/cpu/mcheck/p5.c
21345 +++ b/arch/x86/kernel/cpu/mcheck/p5.c
21346 @@ -10,6 +10,7 @@
21347 #include <asm/processor.h>
21348 #include <asm/mce.h>
21349 #include <asm/msr.h>
21350 +#include <asm/pgtable.h>
21351
21352 /* By default disabled */
21353 int mce_p5_enabled __read_mostly;
21354 @@ -48,7 +49,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
21355 if (!cpu_has(c, X86_FEATURE_MCE))
21356 return;
21357
21358 + pax_open_kernel();
21359 machine_check_vector = pentium_machine_check;
21360 + pax_close_kernel();
21361 /* Make sure the vector pointer is visible before we enable MCEs: */
21362 wmb();
21363
21364 diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
21365 index 7dc5564..1273569 100644
21366 --- a/arch/x86/kernel/cpu/mcheck/winchip.c
21367 +++ b/arch/x86/kernel/cpu/mcheck/winchip.c
21368 @@ -9,6 +9,7 @@
21369 #include <asm/processor.h>
21370 #include <asm/mce.h>
21371 #include <asm/msr.h>
21372 +#include <asm/pgtable.h>
21373
21374 /* Machine check handler for WinChip C6: */
21375 static void winchip_machine_check(struct pt_regs *regs, long error_code)
21376 @@ -22,7 +23,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
21377 {
21378 u32 lo, hi;
21379
21380 + pax_open_kernel();
21381 machine_check_vector = winchip_machine_check;
21382 + pax_close_kernel();
21383 /* Make sure the vector pointer is visible before we enable MCEs: */
21384 wmb();
21385
21386 diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
21387 index 15c9876..0a43909 100644
21388 --- a/arch/x86/kernel/cpu/microcode/core.c
21389 +++ b/arch/x86/kernel/cpu/microcode/core.c
21390 @@ -513,7 +513,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
21391 return NOTIFY_OK;
21392 }
21393
21394 -static struct notifier_block __refdata mc_cpu_notifier = {
21395 +static struct notifier_block mc_cpu_notifier = {
21396 .notifier_call = mc_cpu_callback,
21397 };
21398
21399 diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
21400 index a276fa7..e66810f 100644
21401 --- a/arch/x86/kernel/cpu/microcode/intel.c
21402 +++ b/arch/x86/kernel/cpu/microcode/intel.c
21403 @@ -293,13 +293,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
21404
21405 static int get_ucode_user(void *to, const void *from, size_t n)
21406 {
21407 - return copy_from_user(to, from, n);
21408 + return copy_from_user(to, (const void __force_user *)from, n);
21409 }
21410
21411 static enum ucode_state
21412 request_microcode_user(int cpu, const void __user *buf, size_t size)
21413 {
21414 - return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
21415 + return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
21416 }
21417
21418 static void microcode_fini_cpu(int cpu)
21419 diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
21420 index f961de9..8a9d332 100644
21421 --- a/arch/x86/kernel/cpu/mtrr/main.c
21422 +++ b/arch/x86/kernel/cpu/mtrr/main.c
21423 @@ -66,7 +66,7 @@ static DEFINE_MUTEX(mtrr_mutex);
21424 u64 size_or_mask, size_and_mask;
21425 static bool mtrr_aps_delayed_init;
21426
21427 -static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
21428 +static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
21429
21430 const struct mtrr_ops *mtrr_if;
21431
21432 diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
21433 index df5e41f..816c719 100644
21434 --- a/arch/x86/kernel/cpu/mtrr/mtrr.h
21435 +++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
21436 @@ -25,7 +25,7 @@ struct mtrr_ops {
21437 int (*validate_add_page)(unsigned long base, unsigned long size,
21438 unsigned int type);
21439 int (*have_wrcomb)(void);
21440 -};
21441 +} __do_const;
21442
21443 extern int generic_get_free_region(unsigned long base, unsigned long size,
21444 int replace_reg);
21445 diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
21446 index ae407f7..39c5b00 100644
21447 --- a/arch/x86/kernel/cpu/perf_event.c
21448 +++ b/arch/x86/kernel/cpu/perf_event.c
21449 @@ -1367,7 +1367,7 @@ static void __init pmu_check_apic(void)
21450 pr_info("no hardware sampling interrupt available.\n");
21451 }
21452
21453 -static struct attribute_group x86_pmu_format_group = {
21454 +static attribute_group_no_const x86_pmu_format_group = {
21455 .name = "format",
21456 .attrs = NULL,
21457 };
21458 @@ -1466,7 +1466,7 @@ static struct attribute *events_attr[] = {
21459 NULL,
21460 };
21461
21462 -static struct attribute_group x86_pmu_events_group = {
21463 +static attribute_group_no_const x86_pmu_events_group = {
21464 .name = "events",
21465 .attrs = events_attr,
21466 };
21467 @@ -1990,7 +1990,7 @@ static unsigned long get_segment_base(unsigned int segment)
21468 if (idx > GDT_ENTRIES)
21469 return 0;
21470
21471 - desc = __this_cpu_ptr(&gdt_page.gdt[0]);
21472 + desc = get_cpu_gdt_table(smp_processor_id());
21473 }
21474
21475 return get_desc_base(desc + idx);
21476 @@ -2080,7 +2080,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
21477 break;
21478
21479 perf_callchain_store(entry, frame.return_address);
21480 - fp = frame.next_frame;
21481 + fp = (const void __force_user *)frame.next_frame;
21482 }
21483 }
21484
21485 diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21486 index 639d128..e92d7e5 100644
21487 --- a/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21488 +++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21489 @@ -405,7 +405,7 @@ static void perf_iommu_del(struct perf_event *event, int flags)
21490 static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
21491 {
21492 struct attribute **attrs;
21493 - struct attribute_group *attr_group;
21494 + attribute_group_no_const *attr_group;
21495 int i = 0, j;
21496
21497 while (amd_iommu_v2_event_descs[i].attr.attr.name)
21498 diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
21499 index adb02aa..9688c02 100644
21500 --- a/arch/x86/kernel/cpu/perf_event_intel.c
21501 +++ b/arch/x86/kernel/cpu/perf_event_intel.c
21502 @@ -2308,10 +2308,10 @@ __init int intel_pmu_init(void)
21503 x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3);
21504
21505 if (boot_cpu_has(X86_FEATURE_PDCM)) {
21506 - u64 capabilities;
21507 + u64 capabilities = x86_pmu.intel_cap.capabilities;
21508
21509 - rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
21510 - x86_pmu.intel_cap.capabilities = capabilities;
21511 + if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
21512 + x86_pmu.intel_cap.capabilities = capabilities;
21513 }
21514
21515 intel_ds_init();
21516 diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21517 index 619f769..d510008 100644
21518 --- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21519 +++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21520 @@ -449,7 +449,7 @@ static struct attribute *rapl_events_hsw_attr[] = {
21521 NULL,
21522 };
21523
21524 -static struct attribute_group rapl_pmu_events_group = {
21525 +static attribute_group_no_const rapl_pmu_events_group __read_only = {
21526 .name = "events",
21527 .attrs = NULL, /* patched at runtime */
21528 };
21529 diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21530 index 65bbbea..1438d9e 100644
21531 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21532 +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21533 @@ -3693,7 +3693,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
21534 static int __init uncore_type_init(struct intel_uncore_type *type)
21535 {
21536 struct intel_uncore_pmu *pmus;
21537 - struct attribute_group *attr_group;
21538 + attribute_group_no_const *attr_group;
21539 struct attribute **attrs;
21540 int i, j;
21541
21542 diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21543 index 90236f0..54cb20d 100644
21544 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21545 +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21546 @@ -503,7 +503,7 @@ struct intel_uncore_box {
21547 struct uncore_event_desc {
21548 struct kobj_attribute attr;
21549 const char *config;
21550 -};
21551 +} __do_const;
21552
21553 #define INTEL_UNCORE_EVENT_DESC(_name, _config) \
21554 { \
21555 diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
21556 index 3225ae6c..ee3c6db 100644
21557 --- a/arch/x86/kernel/cpuid.c
21558 +++ b/arch/x86/kernel/cpuid.c
21559 @@ -170,7 +170,7 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb,
21560 return notifier_from_errno(err);
21561 }
21562
21563 -static struct notifier_block __refdata cpuid_class_cpu_notifier =
21564 +static struct notifier_block cpuid_class_cpu_notifier =
21565 {
21566 .notifier_call = cpuid_class_cpu_callback,
21567 };
21568 diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
21569 index 507de80..ebaae2a 100644
21570 --- a/arch/x86/kernel/crash.c
21571 +++ b/arch/x86/kernel/crash.c
21572 @@ -58,7 +58,7 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
21573 #ifdef CONFIG_X86_32
21574 struct pt_regs fixed_regs;
21575
21576 - if (!user_mode_vm(regs)) {
21577 + if (!user_mode(regs)) {
21578 crash_fixup_ss_esp(&fixed_regs, regs);
21579 regs = &fixed_regs;
21580 }
21581 diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
21582 index afa64ad..dce67dd 100644
21583 --- a/arch/x86/kernel/crash_dump_64.c
21584 +++ b/arch/x86/kernel/crash_dump_64.c
21585 @@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
21586 return -ENOMEM;
21587
21588 if (userbuf) {
21589 - if (copy_to_user(buf, vaddr + offset, csize)) {
21590 + if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
21591 iounmap(vaddr);
21592 return -EFAULT;
21593 }
21594 diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
21595 index f6dfd93..892ade4 100644
21596 --- a/arch/x86/kernel/doublefault.c
21597 +++ b/arch/x86/kernel/doublefault.c
21598 @@ -12,7 +12,7 @@
21599
21600 #define DOUBLEFAULT_STACKSIZE (1024)
21601 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
21602 -#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
21603 +#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
21604
21605 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
21606
21607 @@ -22,7 +22,7 @@ static void doublefault_fn(void)
21608 unsigned long gdt, tss;
21609
21610 native_store_gdt(&gdt_desc);
21611 - gdt = gdt_desc.address;
21612 + gdt = (unsigned long)gdt_desc.address;
21613
21614 printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
21615
21616 @@ -59,10 +59,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
21617 /* 0x2 bit is always set */
21618 .flags = X86_EFLAGS_SF | 0x2,
21619 .sp = STACK_START,
21620 - .es = __USER_DS,
21621 + .es = __KERNEL_DS,
21622 .cs = __KERNEL_CS,
21623 .ss = __KERNEL_DS,
21624 - .ds = __USER_DS,
21625 + .ds = __KERNEL_DS,
21626 .fs = __KERNEL_PERCPU,
21627
21628 .__cr3 = __pa_nodebug(swapper_pg_dir),
21629 diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
21630 index d9c12d3..7858b62 100644
21631 --- a/arch/x86/kernel/dumpstack.c
21632 +++ b/arch/x86/kernel/dumpstack.c
21633 @@ -2,6 +2,9 @@
21634 * Copyright (C) 1991, 1992 Linus Torvalds
21635 * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
21636 */
21637 +#ifdef CONFIG_GRKERNSEC_HIDESYM
21638 +#define __INCLUDED_BY_HIDESYM 1
21639 +#endif
21640 #include <linux/kallsyms.h>
21641 #include <linux/kprobes.h>
21642 #include <linux/uaccess.h>
21643 @@ -40,16 +43,14 @@ void printk_address(unsigned long address)
21644 static void
21645 print_ftrace_graph_addr(unsigned long addr, void *data,
21646 const struct stacktrace_ops *ops,
21647 - struct thread_info *tinfo, int *graph)
21648 + struct task_struct *task, int *graph)
21649 {
21650 - struct task_struct *task;
21651 unsigned long ret_addr;
21652 int index;
21653
21654 if (addr != (unsigned long)return_to_handler)
21655 return;
21656
21657 - task = tinfo->task;
21658 index = task->curr_ret_stack;
21659
21660 if (!task->ret_stack || index < *graph)
21661 @@ -66,7 +67,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21662 static inline void
21663 print_ftrace_graph_addr(unsigned long addr, void *data,
21664 const struct stacktrace_ops *ops,
21665 - struct thread_info *tinfo, int *graph)
21666 + struct task_struct *task, int *graph)
21667 { }
21668 #endif
21669
21670 @@ -77,10 +78,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21671 * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
21672 */
21673
21674 -static inline int valid_stack_ptr(struct thread_info *tinfo,
21675 - void *p, unsigned int size, void *end)
21676 +static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
21677 {
21678 - void *t = tinfo;
21679 if (end) {
21680 if (p < end && p >= (end-THREAD_SIZE))
21681 return 1;
21682 @@ -91,14 +90,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
21683 }
21684
21685 unsigned long
21686 -print_context_stack(struct thread_info *tinfo,
21687 +print_context_stack(struct task_struct *task, void *stack_start,
21688 unsigned long *stack, unsigned long bp,
21689 const struct stacktrace_ops *ops, void *data,
21690 unsigned long *end, int *graph)
21691 {
21692 struct stack_frame *frame = (struct stack_frame *)bp;
21693
21694 - while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
21695 + while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
21696 unsigned long addr;
21697
21698 addr = *stack;
21699 @@ -110,7 +109,7 @@ print_context_stack(struct thread_info *tinfo,
21700 } else {
21701 ops->address(data, addr, 0);
21702 }
21703 - print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21704 + print_ftrace_graph_addr(addr, data, ops, task, graph);
21705 }
21706 stack++;
21707 }
21708 @@ -119,7 +118,7 @@ print_context_stack(struct thread_info *tinfo,
21709 EXPORT_SYMBOL_GPL(print_context_stack);
21710
21711 unsigned long
21712 -print_context_stack_bp(struct thread_info *tinfo,
21713 +print_context_stack_bp(struct task_struct *task, void *stack_start,
21714 unsigned long *stack, unsigned long bp,
21715 const struct stacktrace_ops *ops, void *data,
21716 unsigned long *end, int *graph)
21717 @@ -127,7 +126,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21718 struct stack_frame *frame = (struct stack_frame *)bp;
21719 unsigned long *ret_addr = &frame->return_address;
21720
21721 - while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
21722 + while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
21723 unsigned long addr = *ret_addr;
21724
21725 if (!__kernel_text_address(addr))
21726 @@ -136,7 +135,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21727 ops->address(data, addr, 1);
21728 frame = frame->next_frame;
21729 ret_addr = &frame->return_address;
21730 - print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21731 + print_ftrace_graph_addr(addr, data, ops, task, graph);
21732 }
21733
21734 return (unsigned long)frame;
21735 @@ -155,7 +154,7 @@ static int print_trace_stack(void *data, char *name)
21736 static void print_trace_address(void *data, unsigned long addr, int reliable)
21737 {
21738 touch_nmi_watchdog();
21739 - printk(data);
21740 + printk("%s", (char *)data);
21741 printk_stack_address(addr, reliable);
21742 }
21743
21744 @@ -224,6 +223,8 @@ unsigned __kprobes long oops_begin(void)
21745 }
21746 EXPORT_SYMBOL_GPL(oops_begin);
21747
21748 +extern void gr_handle_kernel_exploit(void);
21749 +
21750 void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
21751 {
21752 if (regs && kexec_should_crash(current))
21753 @@ -245,7 +246,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
21754 panic("Fatal exception in interrupt");
21755 if (panic_on_oops)
21756 panic("Fatal exception");
21757 - do_exit(signr);
21758 +
21759 + gr_handle_kernel_exploit();
21760 +
21761 + do_group_exit(signr);
21762 }
21763
21764 int __kprobes __die(const char *str, struct pt_regs *regs, long err)
21765 @@ -273,7 +277,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
21766 print_modules();
21767 show_regs(regs);
21768 #ifdef CONFIG_X86_32
21769 - if (user_mode_vm(regs)) {
21770 + if (user_mode(regs)) {
21771 sp = regs->sp;
21772 ss = regs->ss & 0xffff;
21773 } else {
21774 @@ -301,7 +305,7 @@ void die(const char *str, struct pt_regs *regs, long err)
21775 unsigned long flags = oops_begin();
21776 int sig = SIGSEGV;
21777
21778 - if (!user_mode_vm(regs))
21779 + if (!user_mode(regs))
21780 report_bug(regs->ip, regs);
21781
21782 if (__die(str, regs, err))
21783 diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
21784 index 5abd4cd..c65733b 100644
21785 --- a/arch/x86/kernel/dumpstack_32.c
21786 +++ b/arch/x86/kernel/dumpstack_32.c
21787 @@ -61,15 +61,14 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21788 bp = stack_frame(task, regs);
21789
21790 for (;;) {
21791 - struct thread_info *context;
21792 + void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
21793 void *end_stack;
21794
21795 end_stack = is_hardirq_stack(stack, cpu);
21796 if (!end_stack)
21797 end_stack = is_softirq_stack(stack, cpu);
21798
21799 - context = task_thread_info(task);
21800 - bp = ops->walk_stack(context, stack, bp, ops, data,
21801 + bp = ops->walk_stack(task, stack_start, stack, bp, ops, data,
21802 end_stack, &graph);
21803
21804 /* Stop if not on irq stack */
21805 @@ -123,27 +122,28 @@ void show_regs(struct pt_regs *regs)
21806 int i;
21807
21808 show_regs_print_info(KERN_EMERG);
21809 - __show_regs(regs, !user_mode_vm(regs));
21810 + __show_regs(regs, !user_mode(regs));
21811
21812 /*
21813 * When in-kernel, we also print out the stack and code at the
21814 * time of the fault..
21815 */
21816 - if (!user_mode_vm(regs)) {
21817 + if (!user_mode(regs)) {
21818 unsigned int code_prologue = code_bytes * 43 / 64;
21819 unsigned int code_len = code_bytes;
21820 unsigned char c;
21821 u8 *ip;
21822 + unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
21823
21824 pr_emerg("Stack:\n");
21825 show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
21826
21827 pr_emerg("Code:");
21828
21829 - ip = (u8 *)regs->ip - code_prologue;
21830 + ip = (u8 *)regs->ip - code_prologue + cs_base;
21831 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
21832 /* try starting at IP */
21833 - ip = (u8 *)regs->ip;
21834 + ip = (u8 *)regs->ip + cs_base;
21835 code_len = code_len - code_prologue + 1;
21836 }
21837 for (i = 0; i < code_len; i++, ip++) {
21838 @@ -152,7 +152,7 @@ void show_regs(struct pt_regs *regs)
21839 pr_cont(" Bad EIP value.");
21840 break;
21841 }
21842 - if (ip == (u8 *)regs->ip)
21843 + if (ip == (u8 *)regs->ip + cs_base)
21844 pr_cont(" <%02x>", c);
21845 else
21846 pr_cont(" %02x", c);
21847 @@ -165,6 +165,7 @@ int is_valid_bugaddr(unsigned long ip)
21848 {
21849 unsigned short ud2;
21850
21851 + ip = ktla_ktva(ip);
21852 if (ip < PAGE_OFFSET)
21853 return 0;
21854 if (probe_kernel_address((unsigned short *)ip, ud2))
21855 @@ -172,3 +173,15 @@ int is_valid_bugaddr(unsigned long ip)
21856
21857 return ud2 == 0x0b0f;
21858 }
21859 +
21860 +#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
21861 +void pax_check_alloca(unsigned long size)
21862 +{
21863 + unsigned long sp = (unsigned long)&sp, stack_left;
21864 +
21865 + /* all kernel stacks are of the same size */
21866 + stack_left = sp & (THREAD_SIZE - 1);
21867 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
21868 +}
21869 +EXPORT_SYMBOL(pax_check_alloca);
21870 +#endif
21871 diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
21872 index 1abcb50..6c8d702 100644
21873 --- a/arch/x86/kernel/dumpstack_64.c
21874 +++ b/arch/x86/kernel/dumpstack_64.c
21875 @@ -154,12 +154,12 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21876 const struct stacktrace_ops *ops, void *data)
21877 {
21878 const unsigned cpu = get_cpu();
21879 - struct thread_info *tinfo;
21880 unsigned long *irq_stack = (unsigned long *)per_cpu(irq_stack_ptr, cpu);
21881 unsigned long dummy;
21882 unsigned used = 0;
21883 int graph = 0;
21884 int done = 0;
21885 + void *stack_start;
21886
21887 if (!task)
21888 task = current;
21889 @@ -180,7 +180,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21890 * current stack address. If the stacks consist of nested
21891 * exceptions
21892 */
21893 - tinfo = task_thread_info(task);
21894 while (!done) {
21895 unsigned long *stack_end;
21896 enum stack_type stype;
21897 @@ -203,7 +202,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21898 if (ops->stack(data, id) < 0)
21899 break;
21900
21901 - bp = ops->walk_stack(tinfo, stack, bp, ops,
21902 + bp = ops->walk_stack(task, stack_end - EXCEPTION_STKSZ, stack, bp, ops,
21903 data, stack_end, &graph);
21904 ops->stack(data, "<EOE>");
21905 /*
21906 @@ -211,6 +210,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21907 * second-to-last pointer (index -2 to end) in the
21908 * exception stack:
21909 */
21910 + if ((u16)stack_end[-1] != __KERNEL_DS)
21911 + goto out;
21912 stack = (unsigned long *) stack_end[-2];
21913 done = 0;
21914 break;
21915 @@ -219,7 +220,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21916
21917 if (ops->stack(data, "IRQ") < 0)
21918 break;
21919 - bp = ops->walk_stack(tinfo, stack, bp,
21920 + bp = ops->walk_stack(task, irq_stack, stack, bp,
21921 ops, data, stack_end, &graph);
21922 /*
21923 * We link to the next stack (which would be
21924 @@ -241,7 +242,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
21925 /*
21926 * This handles the process stack:
21927 */
21928 - bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
21929 + stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
21930 + bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
21931 +out:
21932 put_cpu();
21933 }
21934 EXPORT_SYMBOL(dump_trace);
21935 @@ -350,3 +353,50 @@ int is_valid_bugaddr(unsigned long ip)
21936
21937 return ud2 == 0x0b0f;
21938 }
21939 +
21940 +#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
21941 +void pax_check_alloca(unsigned long size)
21942 +{
21943 + unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
21944 + unsigned cpu, used;
21945 + char *id;
21946 +
21947 + /* check the process stack first */
21948 + stack_start = (unsigned long)task_stack_page(current);
21949 + stack_end = stack_start + THREAD_SIZE;
21950 + if (likely(stack_start <= sp && sp < stack_end)) {
21951 + unsigned long stack_left = sp & (THREAD_SIZE - 1);
21952 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
21953 + return;
21954 + }
21955 +
21956 + cpu = get_cpu();
21957 +
21958 + /* check the irq stacks */
21959 + stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
21960 + stack_start = stack_end - IRQ_STACK_SIZE;
21961 + if (stack_start <= sp && sp < stack_end) {
21962 + unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
21963 + put_cpu();
21964 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
21965 + return;
21966 + }
21967 +
21968 + /* check the exception stacks */
21969 + used = 0;
21970 + stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
21971 + stack_start = stack_end - EXCEPTION_STKSZ;
21972 + if (stack_end && stack_start <= sp && sp < stack_end) {
21973 + unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
21974 + put_cpu();
21975 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
21976 + return;
21977 + }
21978 +
21979 + put_cpu();
21980 +
21981 + /* unknown stack */
21982 + BUG();
21983 +}
21984 +EXPORT_SYMBOL(pax_check_alloca);
21985 +#endif
21986 diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
21987 index 988c00a..4f673b6 100644
21988 --- a/arch/x86/kernel/e820.c
21989 +++ b/arch/x86/kernel/e820.c
21990 @@ -803,8 +803,8 @@ unsigned long __init e820_end_of_low_ram_pfn(void)
21991
21992 static void early_panic(char *msg)
21993 {
21994 - early_printk(msg);
21995 - panic(msg);
21996 + early_printk("%s", msg);
21997 + panic("%s", msg);
21998 }
21999
22000 static int userdef __initdata;
22001 diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
22002 index 01d1c18..8073693 100644
22003 --- a/arch/x86/kernel/early_printk.c
22004 +++ b/arch/x86/kernel/early_printk.c
22005 @@ -7,6 +7,7 @@
22006 #include <linux/pci_regs.h>
22007 #include <linux/pci_ids.h>
22008 #include <linux/errno.h>
22009 +#include <linux/sched.h>
22010 #include <asm/io.h>
22011 #include <asm/processor.h>
22012 #include <asm/fcntl.h>
22013 diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
22014 index 6491353..a918952 100644
22015 --- a/arch/x86/kernel/entry_32.S
22016 +++ b/arch/x86/kernel/entry_32.S
22017 @@ -177,13 +177,153 @@
22018 /*CFI_REL_OFFSET gs, PT_GS*/
22019 .endm
22020 .macro SET_KERNEL_GS reg
22021 +
22022 +#ifdef CONFIG_CC_STACKPROTECTOR
22023 movl $(__KERNEL_STACK_CANARY), \reg
22024 +#elif defined(CONFIG_PAX_MEMORY_UDEREF)
22025 + movl $(__USER_DS), \reg
22026 +#else
22027 + xorl \reg, \reg
22028 +#endif
22029 +
22030 movl \reg, %gs
22031 .endm
22032
22033 #endif /* CONFIG_X86_32_LAZY_GS */
22034
22035 -.macro SAVE_ALL
22036 +.macro pax_enter_kernel
22037 +#ifdef CONFIG_PAX_KERNEXEC
22038 + call pax_enter_kernel
22039 +#endif
22040 +.endm
22041 +
22042 +.macro pax_exit_kernel
22043 +#ifdef CONFIG_PAX_KERNEXEC
22044 + call pax_exit_kernel
22045 +#endif
22046 +.endm
22047 +
22048 +#ifdef CONFIG_PAX_KERNEXEC
22049 +ENTRY(pax_enter_kernel)
22050 +#ifdef CONFIG_PARAVIRT
22051 + pushl %eax
22052 + pushl %ecx
22053 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
22054 + mov %eax, %esi
22055 +#else
22056 + mov %cr0, %esi
22057 +#endif
22058 + bts $16, %esi
22059 + jnc 1f
22060 + mov %cs, %esi
22061 + cmp $__KERNEL_CS, %esi
22062 + jz 3f
22063 + ljmp $__KERNEL_CS, $3f
22064 +1: ljmp $__KERNEXEC_KERNEL_CS, $2f
22065 +2:
22066 +#ifdef CONFIG_PARAVIRT
22067 + mov %esi, %eax
22068 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
22069 +#else
22070 + mov %esi, %cr0
22071 +#endif
22072 +3:
22073 +#ifdef CONFIG_PARAVIRT
22074 + popl %ecx
22075 + popl %eax
22076 +#endif
22077 + ret
22078 +ENDPROC(pax_enter_kernel)
22079 +
22080 +ENTRY(pax_exit_kernel)
22081 +#ifdef CONFIG_PARAVIRT
22082 + pushl %eax
22083 + pushl %ecx
22084 +#endif
22085 + mov %cs, %esi
22086 + cmp $__KERNEXEC_KERNEL_CS, %esi
22087 + jnz 2f
22088 +#ifdef CONFIG_PARAVIRT
22089 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
22090 + mov %eax, %esi
22091 +#else
22092 + mov %cr0, %esi
22093 +#endif
22094 + btr $16, %esi
22095 + ljmp $__KERNEL_CS, $1f
22096 +1:
22097 +#ifdef CONFIG_PARAVIRT
22098 + mov %esi, %eax
22099 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
22100 +#else
22101 + mov %esi, %cr0
22102 +#endif
22103 +2:
22104 +#ifdef CONFIG_PARAVIRT
22105 + popl %ecx
22106 + popl %eax
22107 +#endif
22108 + ret
22109 +ENDPROC(pax_exit_kernel)
22110 +#endif
22111 +
22112 + .macro pax_erase_kstack
22113 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22114 + call pax_erase_kstack
22115 +#endif
22116 + .endm
22117 +
22118 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22119 +/*
22120 + * ebp: thread_info
22121 + */
22122 +ENTRY(pax_erase_kstack)
22123 + pushl %edi
22124 + pushl %ecx
22125 + pushl %eax
22126 +
22127 + mov TI_lowest_stack(%ebp), %edi
22128 + mov $-0xBEEF, %eax
22129 + std
22130 +
22131 +1: mov %edi, %ecx
22132 + and $THREAD_SIZE_asm - 1, %ecx
22133 + shr $2, %ecx
22134 + repne scasl
22135 + jecxz 2f
22136 +
22137 + cmp $2*16, %ecx
22138 + jc 2f
22139 +
22140 + mov $2*16, %ecx
22141 + repe scasl
22142 + jecxz 2f
22143 + jne 1b
22144 +
22145 +2: cld
22146 + mov %esp, %ecx
22147 + sub %edi, %ecx
22148 +
22149 + cmp $THREAD_SIZE_asm, %ecx
22150 + jb 3f
22151 + ud2
22152 +3:
22153 +
22154 + shr $2, %ecx
22155 + rep stosl
22156 +
22157 + mov TI_task_thread_sp0(%ebp), %edi
22158 + sub $128, %edi
22159 + mov %edi, TI_lowest_stack(%ebp)
22160 +
22161 + popl %eax
22162 + popl %ecx
22163 + popl %edi
22164 + ret
22165 +ENDPROC(pax_erase_kstack)
22166 +#endif
22167 +
22168 +.macro __SAVE_ALL _DS
22169 cld
22170 PUSH_GS
22171 pushl_cfi %fs
22172 @@ -206,7 +346,7 @@
22173 CFI_REL_OFFSET ecx, 0
22174 pushl_cfi %ebx
22175 CFI_REL_OFFSET ebx, 0
22176 - movl $(__USER_DS), %edx
22177 + movl $\_DS, %edx
22178 movl %edx, %ds
22179 movl %edx, %es
22180 movl $(__KERNEL_PERCPU), %edx
22181 @@ -214,6 +354,15 @@
22182 SET_KERNEL_GS %edx
22183 .endm
22184
22185 +.macro SAVE_ALL
22186 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22187 + __SAVE_ALL __KERNEL_DS
22188 + pax_enter_kernel
22189 +#else
22190 + __SAVE_ALL __USER_DS
22191 +#endif
22192 +.endm
22193 +
22194 .macro RESTORE_INT_REGS
22195 popl_cfi %ebx
22196 CFI_RESTORE ebx
22197 @@ -297,7 +446,7 @@ ENTRY(ret_from_fork)
22198 popfl_cfi
22199 jmp syscall_exit
22200 CFI_ENDPROC
22201 -END(ret_from_fork)
22202 +ENDPROC(ret_from_fork)
22203
22204 ENTRY(ret_from_kernel_thread)
22205 CFI_STARTPROC
22206 @@ -344,7 +493,15 @@ ret_from_intr:
22207 andl $SEGMENT_RPL_MASK, %eax
22208 #endif
22209 cmpl $USER_RPL, %eax
22210 +
22211 +#ifdef CONFIG_PAX_KERNEXEC
22212 + jae resume_userspace
22213 +
22214 + pax_exit_kernel
22215 + jmp resume_kernel
22216 +#else
22217 jb resume_kernel # not returning to v8086 or userspace
22218 +#endif
22219
22220 ENTRY(resume_userspace)
22221 LOCKDEP_SYS_EXIT
22222 @@ -356,8 +513,8 @@ ENTRY(resume_userspace)
22223 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on
22224 # int/exception return?
22225 jne work_pending
22226 - jmp restore_all
22227 -END(ret_from_exception)
22228 + jmp restore_all_pax
22229 +ENDPROC(ret_from_exception)
22230
22231 #ifdef CONFIG_PREEMPT
22232 ENTRY(resume_kernel)
22233 @@ -369,7 +526,7 @@ need_resched:
22234 jz restore_all
22235 call preempt_schedule_irq
22236 jmp need_resched
22237 -END(resume_kernel)
22238 +ENDPROC(resume_kernel)
22239 #endif
22240 CFI_ENDPROC
22241 /*
22242 @@ -403,30 +560,45 @@ sysenter_past_esp:
22243 /*CFI_REL_OFFSET cs, 0*/
22244 /*
22245 * Push current_thread_info()->sysenter_return to the stack.
22246 - * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
22247 - * pushed above; +8 corresponds to copy_thread's esp0 setting.
22248 */
22249 - pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
22250 + pushl_cfi $0
22251 CFI_REL_OFFSET eip, 0
22252
22253 pushl_cfi %eax
22254 SAVE_ALL
22255 + GET_THREAD_INFO(%ebp)
22256 + movl TI_sysenter_return(%ebp),%ebp
22257 + movl %ebp,PT_EIP(%esp)
22258 ENABLE_INTERRUPTS(CLBR_NONE)
22259
22260 /*
22261 * Load the potential sixth argument from user stack.
22262 * Careful about security.
22263 */
22264 + movl PT_OLDESP(%esp),%ebp
22265 +
22266 +#ifdef CONFIG_PAX_MEMORY_UDEREF
22267 + mov PT_OLDSS(%esp),%ds
22268 +1: movl %ds:(%ebp),%ebp
22269 + push %ss
22270 + pop %ds
22271 +#else
22272 cmpl $__PAGE_OFFSET-3,%ebp
22273 jae syscall_fault
22274 ASM_STAC
22275 1: movl (%ebp),%ebp
22276 ASM_CLAC
22277 +#endif
22278 +
22279 movl %ebp,PT_EBP(%esp)
22280 _ASM_EXTABLE(1b,syscall_fault)
22281
22282 GET_THREAD_INFO(%ebp)
22283
22284 +#ifdef CONFIG_PAX_RANDKSTACK
22285 + pax_erase_kstack
22286 +#endif
22287 +
22288 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22289 jnz sysenter_audit
22290 sysenter_do_call:
22291 @@ -442,12 +614,24 @@ sysenter_after_call:
22292 testl $_TIF_ALLWORK_MASK, %ecx
22293 jne sysexit_audit
22294 sysenter_exit:
22295 +
22296 +#ifdef CONFIG_PAX_RANDKSTACK
22297 + pushl_cfi %eax
22298 + movl %esp, %eax
22299 + call pax_randomize_kstack
22300 + popl_cfi %eax
22301 +#endif
22302 +
22303 + pax_erase_kstack
22304 +
22305 /* if something modifies registers it must also disable sysexit */
22306 movl PT_EIP(%esp), %edx
22307 movl PT_OLDESP(%esp), %ecx
22308 xorl %ebp,%ebp
22309 TRACE_IRQS_ON
22310 1: mov PT_FS(%esp), %fs
22311 +2: mov PT_DS(%esp), %ds
22312 +3: mov PT_ES(%esp), %es
22313 PTGS_TO_GS
22314 ENABLE_INTERRUPTS_SYSEXIT
22315
22316 @@ -464,6 +648,9 @@ sysenter_audit:
22317 movl %eax,%edx /* 2nd arg: syscall number */
22318 movl $AUDIT_ARCH_I386,%eax /* 1st arg: audit arch */
22319 call __audit_syscall_entry
22320 +
22321 + pax_erase_kstack
22322 +
22323 pushl_cfi %ebx
22324 movl PT_EAX(%esp),%eax /* reload syscall number */
22325 jmp sysenter_do_call
22326 @@ -489,10 +676,16 @@ sysexit_audit:
22327
22328 CFI_ENDPROC
22329 .pushsection .fixup,"ax"
22330 -2: movl $0,PT_FS(%esp)
22331 +4: movl $0,PT_FS(%esp)
22332 + jmp 1b
22333 +5: movl $0,PT_DS(%esp)
22334 + jmp 1b
22335 +6: movl $0,PT_ES(%esp)
22336 jmp 1b
22337 .popsection
22338 - _ASM_EXTABLE(1b,2b)
22339 + _ASM_EXTABLE(1b,4b)
22340 + _ASM_EXTABLE(2b,5b)
22341 + _ASM_EXTABLE(3b,6b)
22342 PTGS_TO_GS_EX
22343 ENDPROC(ia32_sysenter_target)
22344
22345 @@ -507,6 +700,11 @@ ENTRY(system_call)
22346 pushl_cfi %eax # save orig_eax
22347 SAVE_ALL
22348 GET_THREAD_INFO(%ebp)
22349 +
22350 +#ifdef CONFIG_PAX_RANDKSTACK
22351 + pax_erase_kstack
22352 +#endif
22353 +
22354 # system call tracing in operation / emulation
22355 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22356 jnz syscall_trace_entry
22357 @@ -525,6 +723,15 @@ syscall_exit:
22358 testl $_TIF_ALLWORK_MASK, %ecx # current->work
22359 jne syscall_exit_work
22360
22361 +restore_all_pax:
22362 +
22363 +#ifdef CONFIG_PAX_RANDKSTACK
22364 + movl %esp, %eax
22365 + call pax_randomize_kstack
22366 +#endif
22367 +
22368 + pax_erase_kstack
22369 +
22370 restore_all:
22371 TRACE_IRQS_IRET
22372 restore_all_notrace:
22373 @@ -576,14 +783,34 @@ ldt_ss:
22374 * compensating for the offset by changing to the ESPFIX segment with
22375 * a base address that matches for the difference.
22376 */
22377 -#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
22378 +#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
22379 mov %esp, %edx /* load kernel esp */
22380 mov PT_OLDESP(%esp), %eax /* load userspace esp */
22381 mov %dx, %ax /* eax: new kernel esp */
22382 sub %eax, %edx /* offset (low word is 0) */
22383 +#ifdef CONFIG_SMP
22384 + movl PER_CPU_VAR(cpu_number), %ebx
22385 + shll $PAGE_SHIFT_asm, %ebx
22386 + addl $cpu_gdt_table, %ebx
22387 +#else
22388 + movl $cpu_gdt_table, %ebx
22389 +#endif
22390 shr $16, %edx
22391 - mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
22392 - mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
22393 +
22394 +#ifdef CONFIG_PAX_KERNEXEC
22395 + mov %cr0, %esi
22396 + btr $16, %esi
22397 + mov %esi, %cr0
22398 +#endif
22399 +
22400 + mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
22401 + mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
22402 +
22403 +#ifdef CONFIG_PAX_KERNEXEC
22404 + bts $16, %esi
22405 + mov %esi, %cr0
22406 +#endif
22407 +
22408 pushl_cfi $__ESPFIX_SS
22409 pushl_cfi %eax /* new kernel esp */
22410 /* Disable interrupts, but do not irqtrace this section: we
22411 @@ -612,20 +839,18 @@ work_resched:
22412 movl TI_flags(%ebp), %ecx
22413 andl $_TIF_WORK_MASK, %ecx # is there any work to be done other
22414 # than syscall tracing?
22415 - jz restore_all
22416 + jz restore_all_pax
22417 testb $_TIF_NEED_RESCHED, %cl
22418 jnz work_resched
22419
22420 work_notifysig: # deal with pending signals and
22421 # notify-resume requests
22422 + movl %esp, %eax
22423 #ifdef CONFIG_VM86
22424 testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
22425 - movl %esp, %eax
22426 jne work_notifysig_v86 # returning to kernel-space or
22427 # vm86-space
22428 1:
22429 -#else
22430 - movl %esp, %eax
22431 #endif
22432 TRACE_IRQS_ON
22433 ENABLE_INTERRUPTS(CLBR_NONE)
22434 @@ -646,7 +871,7 @@ work_notifysig_v86:
22435 movl %eax, %esp
22436 jmp 1b
22437 #endif
22438 -END(work_pending)
22439 +ENDPROC(work_pending)
22440
22441 # perform syscall exit tracing
22442 ALIGN
22443 @@ -654,11 +879,14 @@ syscall_trace_entry:
22444 movl $-ENOSYS,PT_EAX(%esp)
22445 movl %esp, %eax
22446 call syscall_trace_enter
22447 +
22448 + pax_erase_kstack
22449 +
22450 /* What it returned is what we'll actually use. */
22451 cmpl $(NR_syscalls), %eax
22452 jnae syscall_call
22453 jmp syscall_exit
22454 -END(syscall_trace_entry)
22455 +ENDPROC(syscall_trace_entry)
22456
22457 # perform syscall exit tracing
22458 ALIGN
22459 @@ -671,26 +899,30 @@ syscall_exit_work:
22460 movl %esp, %eax
22461 call syscall_trace_leave
22462 jmp resume_userspace
22463 -END(syscall_exit_work)
22464 +ENDPROC(syscall_exit_work)
22465 CFI_ENDPROC
22466
22467 RING0_INT_FRAME # can't unwind into user space anyway
22468 syscall_fault:
22469 +#ifdef CONFIG_PAX_MEMORY_UDEREF
22470 + push %ss
22471 + pop %ds
22472 +#endif
22473 ASM_CLAC
22474 GET_THREAD_INFO(%ebp)
22475 movl $-EFAULT,PT_EAX(%esp)
22476 jmp resume_userspace
22477 -END(syscall_fault)
22478 +ENDPROC(syscall_fault)
22479
22480 syscall_badsys:
22481 movl $-ENOSYS,PT_EAX(%esp)
22482 jmp syscall_exit
22483 -END(syscall_badsys)
22484 +ENDPROC(syscall_badsys)
22485
22486 sysenter_badsys:
22487 movl $-ENOSYS,PT_EAX(%esp)
22488 jmp sysenter_after_call
22489 -END(syscall_badsys)
22490 +ENDPROC(sysenter_badsys)
22491 CFI_ENDPROC
22492 /*
22493 * End of kprobes section
22494 @@ -706,8 +938,15 @@ END(syscall_badsys)
22495 * normal stack and adjusts ESP with the matching offset.
22496 */
22497 /* fixup the stack */
22498 - mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
22499 - mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
22500 +#ifdef CONFIG_SMP
22501 + movl PER_CPU_VAR(cpu_number), %ebx
22502 + shll $PAGE_SHIFT_asm, %ebx
22503 + addl $cpu_gdt_table, %ebx
22504 +#else
22505 + movl $cpu_gdt_table, %ebx
22506 +#endif
22507 + mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
22508 + mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
22509 shl $16, %eax
22510 addl %esp, %eax /* the adjusted stack pointer */
22511 pushl_cfi $__KERNEL_DS
22512 @@ -760,7 +999,7 @@ vector=vector+1
22513 .endr
22514 2: jmp common_interrupt
22515 .endr
22516 -END(irq_entries_start)
22517 +ENDPROC(irq_entries_start)
22518
22519 .previous
22520 END(interrupt)
22521 @@ -821,7 +1060,7 @@ ENTRY(coprocessor_error)
22522 pushl_cfi $do_coprocessor_error
22523 jmp error_code
22524 CFI_ENDPROC
22525 -END(coprocessor_error)
22526 +ENDPROC(coprocessor_error)
22527
22528 ENTRY(simd_coprocessor_error)
22529 RING0_INT_FRAME
22530 @@ -834,7 +1073,7 @@ ENTRY(simd_coprocessor_error)
22531 .section .altinstructions,"a"
22532 altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
22533 .previous
22534 -.section .altinstr_replacement,"ax"
22535 +.section .altinstr_replacement,"a"
22536 663: pushl $do_simd_coprocessor_error
22537 664:
22538 .previous
22539 @@ -843,7 +1082,7 @@ ENTRY(simd_coprocessor_error)
22540 #endif
22541 jmp error_code
22542 CFI_ENDPROC
22543 -END(simd_coprocessor_error)
22544 +ENDPROC(simd_coprocessor_error)
22545
22546 ENTRY(device_not_available)
22547 RING0_INT_FRAME
22548 @@ -852,18 +1091,18 @@ ENTRY(device_not_available)
22549 pushl_cfi $do_device_not_available
22550 jmp error_code
22551 CFI_ENDPROC
22552 -END(device_not_available)
22553 +ENDPROC(device_not_available)
22554
22555 #ifdef CONFIG_PARAVIRT
22556 ENTRY(native_iret)
22557 iret
22558 _ASM_EXTABLE(native_iret, iret_exc)
22559 -END(native_iret)
22560 +ENDPROC(native_iret)
22561
22562 ENTRY(native_irq_enable_sysexit)
22563 sti
22564 sysexit
22565 -END(native_irq_enable_sysexit)
22566 +ENDPROC(native_irq_enable_sysexit)
22567 #endif
22568
22569 ENTRY(overflow)
22570 @@ -873,7 +1112,7 @@ ENTRY(overflow)
22571 pushl_cfi $do_overflow
22572 jmp error_code
22573 CFI_ENDPROC
22574 -END(overflow)
22575 +ENDPROC(overflow)
22576
22577 ENTRY(bounds)
22578 RING0_INT_FRAME
22579 @@ -882,7 +1121,7 @@ ENTRY(bounds)
22580 pushl_cfi $do_bounds
22581 jmp error_code
22582 CFI_ENDPROC
22583 -END(bounds)
22584 +ENDPROC(bounds)
22585
22586 ENTRY(invalid_op)
22587 RING0_INT_FRAME
22588 @@ -891,7 +1130,7 @@ ENTRY(invalid_op)
22589 pushl_cfi $do_invalid_op
22590 jmp error_code
22591 CFI_ENDPROC
22592 -END(invalid_op)
22593 +ENDPROC(invalid_op)
22594
22595 ENTRY(coprocessor_segment_overrun)
22596 RING0_INT_FRAME
22597 @@ -900,7 +1139,7 @@ ENTRY(coprocessor_segment_overrun)
22598 pushl_cfi $do_coprocessor_segment_overrun
22599 jmp error_code
22600 CFI_ENDPROC
22601 -END(coprocessor_segment_overrun)
22602 +ENDPROC(coprocessor_segment_overrun)
22603
22604 ENTRY(invalid_TSS)
22605 RING0_EC_FRAME
22606 @@ -908,7 +1147,7 @@ ENTRY(invalid_TSS)
22607 pushl_cfi $do_invalid_TSS
22608 jmp error_code
22609 CFI_ENDPROC
22610 -END(invalid_TSS)
22611 +ENDPROC(invalid_TSS)
22612
22613 ENTRY(segment_not_present)
22614 RING0_EC_FRAME
22615 @@ -916,7 +1155,7 @@ ENTRY(segment_not_present)
22616 pushl_cfi $do_segment_not_present
22617 jmp error_code
22618 CFI_ENDPROC
22619 -END(segment_not_present)
22620 +ENDPROC(segment_not_present)
22621
22622 ENTRY(stack_segment)
22623 RING0_EC_FRAME
22624 @@ -924,7 +1163,7 @@ ENTRY(stack_segment)
22625 pushl_cfi $do_stack_segment
22626 jmp error_code
22627 CFI_ENDPROC
22628 -END(stack_segment)
22629 +ENDPROC(stack_segment)
22630
22631 ENTRY(alignment_check)
22632 RING0_EC_FRAME
22633 @@ -932,7 +1171,7 @@ ENTRY(alignment_check)
22634 pushl_cfi $do_alignment_check
22635 jmp error_code
22636 CFI_ENDPROC
22637 -END(alignment_check)
22638 +ENDPROC(alignment_check)
22639
22640 ENTRY(divide_error)
22641 RING0_INT_FRAME
22642 @@ -941,7 +1180,7 @@ ENTRY(divide_error)
22643 pushl_cfi $do_divide_error
22644 jmp error_code
22645 CFI_ENDPROC
22646 -END(divide_error)
22647 +ENDPROC(divide_error)
22648
22649 #ifdef CONFIG_X86_MCE
22650 ENTRY(machine_check)
22651 @@ -951,7 +1190,7 @@ ENTRY(machine_check)
22652 pushl_cfi machine_check_vector
22653 jmp error_code
22654 CFI_ENDPROC
22655 -END(machine_check)
22656 +ENDPROC(machine_check)
22657 #endif
22658
22659 ENTRY(spurious_interrupt_bug)
22660 @@ -961,7 +1200,7 @@ ENTRY(spurious_interrupt_bug)
22661 pushl_cfi $do_spurious_interrupt_bug
22662 jmp error_code
22663 CFI_ENDPROC
22664 -END(spurious_interrupt_bug)
22665 +ENDPROC(spurious_interrupt_bug)
22666 /*
22667 * End of kprobes section
22668 */
22669 @@ -1071,7 +1310,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
22670
22671 ENTRY(mcount)
22672 ret
22673 -END(mcount)
22674 +ENDPROC(mcount)
22675
22676 ENTRY(ftrace_caller)
22677 cmpl $0, function_trace_stop
22678 @@ -1104,7 +1343,7 @@ ftrace_graph_call:
22679 .globl ftrace_stub
22680 ftrace_stub:
22681 ret
22682 -END(ftrace_caller)
22683 +ENDPROC(ftrace_caller)
22684
22685 ENTRY(ftrace_regs_caller)
22686 pushf /* push flags before compare (in cs location) */
22687 @@ -1208,7 +1447,7 @@ trace:
22688 popl %ecx
22689 popl %eax
22690 jmp ftrace_stub
22691 -END(mcount)
22692 +ENDPROC(mcount)
22693 #endif /* CONFIG_DYNAMIC_FTRACE */
22694 #endif /* CONFIG_FUNCTION_TRACER */
22695
22696 @@ -1226,7 +1465,7 @@ ENTRY(ftrace_graph_caller)
22697 popl %ecx
22698 popl %eax
22699 ret
22700 -END(ftrace_graph_caller)
22701 +ENDPROC(ftrace_graph_caller)
22702
22703 .globl return_to_handler
22704 return_to_handler:
22705 @@ -1292,15 +1531,18 @@ error_code:
22706 movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
22707 REG_TO_PTGS %ecx
22708 SET_KERNEL_GS %ecx
22709 - movl $(__USER_DS), %ecx
22710 + movl $(__KERNEL_DS), %ecx
22711 movl %ecx, %ds
22712 movl %ecx, %es
22713 +
22714 + pax_enter_kernel
22715 +
22716 TRACE_IRQS_OFF
22717 movl %esp,%eax # pt_regs pointer
22718 call *%edi
22719 jmp ret_from_exception
22720 CFI_ENDPROC
22721 -END(page_fault)
22722 +ENDPROC(page_fault)
22723
22724 /*
22725 * Debug traps and NMI can happen at the one SYSENTER instruction
22726 @@ -1343,7 +1585,7 @@ debug_stack_correct:
22727 call do_debug
22728 jmp ret_from_exception
22729 CFI_ENDPROC
22730 -END(debug)
22731 +ENDPROC(debug)
22732
22733 /*
22734 * NMI is doubly nasty. It can happen _while_ we're handling
22735 @@ -1381,6 +1623,9 @@ nmi_stack_correct:
22736 xorl %edx,%edx # zero error code
22737 movl %esp,%eax # pt_regs pointer
22738 call do_nmi
22739 +
22740 + pax_exit_kernel
22741 +
22742 jmp restore_all_notrace
22743 CFI_ENDPROC
22744
22745 @@ -1417,12 +1662,15 @@ nmi_espfix_stack:
22746 FIXUP_ESPFIX_STACK # %eax == %esp
22747 xorl %edx,%edx # zero error code
22748 call do_nmi
22749 +
22750 + pax_exit_kernel
22751 +
22752 RESTORE_REGS
22753 lss 12+4(%esp), %esp # back to espfix stack
22754 CFI_ADJUST_CFA_OFFSET -24
22755 jmp irq_return
22756 CFI_ENDPROC
22757 -END(nmi)
22758 +ENDPROC(nmi)
22759
22760 ENTRY(int3)
22761 RING0_INT_FRAME
22762 @@ -1435,14 +1683,14 @@ ENTRY(int3)
22763 call do_int3
22764 jmp ret_from_exception
22765 CFI_ENDPROC
22766 -END(int3)
22767 +ENDPROC(int3)
22768
22769 ENTRY(general_protection)
22770 RING0_EC_FRAME
22771 pushl_cfi $do_general_protection
22772 jmp error_code
22773 CFI_ENDPROC
22774 -END(general_protection)
22775 +ENDPROC(general_protection)
22776
22777 #ifdef CONFIG_KVM_GUEST
22778 ENTRY(async_page_fault)
22779 @@ -1451,7 +1699,7 @@ ENTRY(async_page_fault)
22780 pushl_cfi $do_async_page_fault
22781 jmp error_code
22782 CFI_ENDPROC
22783 -END(async_page_fault)
22784 +ENDPROC(async_page_fault)
22785 #endif
22786
22787 /*
22788 diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
22789 index 1e96c36..3ff710a 100644
22790 --- a/arch/x86/kernel/entry_64.S
22791 +++ b/arch/x86/kernel/entry_64.S
22792 @@ -59,6 +59,8 @@
22793 #include <asm/context_tracking.h>
22794 #include <asm/smap.h>
22795 #include <linux/err.h>
22796 +#include <asm/pgtable.h>
22797 +#include <asm/alternative-asm.h>
22798
22799 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
22800 #include <linux/elf-em.h>
22801 @@ -80,8 +82,9 @@
22802 #ifdef CONFIG_DYNAMIC_FTRACE
22803
22804 ENTRY(function_hook)
22805 + pax_force_retaddr
22806 retq
22807 -END(function_hook)
22808 +ENDPROC(function_hook)
22809
22810 /* skip is set if stack has been adjusted */
22811 .macro ftrace_caller_setup skip=0
22812 @@ -122,8 +125,9 @@ GLOBAL(ftrace_graph_call)
22813 #endif
22814
22815 GLOBAL(ftrace_stub)
22816 + pax_force_retaddr
22817 retq
22818 -END(ftrace_caller)
22819 +ENDPROC(ftrace_caller)
22820
22821 ENTRY(ftrace_regs_caller)
22822 /* Save the current flags before compare (in SS location)*/
22823 @@ -191,7 +195,7 @@ ftrace_restore_flags:
22824 popfq
22825 jmp ftrace_stub
22826
22827 -END(ftrace_regs_caller)
22828 +ENDPROC(ftrace_regs_caller)
22829
22830
22831 #else /* ! CONFIG_DYNAMIC_FTRACE */
22832 @@ -212,6 +216,7 @@ ENTRY(function_hook)
22833 #endif
22834
22835 GLOBAL(ftrace_stub)
22836 + pax_force_retaddr
22837 retq
22838
22839 trace:
22840 @@ -225,12 +230,13 @@ trace:
22841 #endif
22842 subq $MCOUNT_INSN_SIZE, %rdi
22843
22844 + pax_force_fptr ftrace_trace_function
22845 call *ftrace_trace_function
22846
22847 MCOUNT_RESTORE_FRAME
22848
22849 jmp ftrace_stub
22850 -END(function_hook)
22851 +ENDPROC(function_hook)
22852 #endif /* CONFIG_DYNAMIC_FTRACE */
22853 #endif /* CONFIG_FUNCTION_TRACER */
22854
22855 @@ -252,8 +258,9 @@ ENTRY(ftrace_graph_caller)
22856
22857 MCOUNT_RESTORE_FRAME
22858
22859 + pax_force_retaddr
22860 retq
22861 -END(ftrace_graph_caller)
22862 +ENDPROC(ftrace_graph_caller)
22863
22864 GLOBAL(return_to_handler)
22865 subq $24, %rsp
22866 @@ -269,7 +276,9 @@ GLOBAL(return_to_handler)
22867 movq 8(%rsp), %rdx
22868 movq (%rsp), %rax
22869 addq $24, %rsp
22870 + pax_force_fptr %rdi
22871 jmp *%rdi
22872 +ENDPROC(return_to_handler)
22873 #endif
22874
22875
22876 @@ -284,6 +293,430 @@ ENTRY(native_usergs_sysret64)
22877 ENDPROC(native_usergs_sysret64)
22878 #endif /* CONFIG_PARAVIRT */
22879
22880 + .macro ljmpq sel, off
22881 +#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
22882 + .byte 0x48; ljmp *1234f(%rip)
22883 + .pushsection .rodata
22884 + .align 16
22885 + 1234: .quad \off; .word \sel
22886 + .popsection
22887 +#else
22888 + pushq $\sel
22889 + pushq $\off
22890 + lretq
22891 +#endif
22892 + .endm
22893 +
22894 + .macro pax_enter_kernel
22895 + pax_set_fptr_mask
22896 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22897 + call pax_enter_kernel
22898 +#endif
22899 + .endm
22900 +
22901 + .macro pax_exit_kernel
22902 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22903 + call pax_exit_kernel
22904 +#endif
22905 +
22906 + .endm
22907 +
22908 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22909 +ENTRY(pax_enter_kernel)
22910 + pushq %rdi
22911 +
22912 +#ifdef CONFIG_PARAVIRT
22913 + PV_SAVE_REGS(CLBR_RDI)
22914 +#endif
22915 +
22916 +#ifdef CONFIG_PAX_KERNEXEC
22917 + GET_CR0_INTO_RDI
22918 + bts $16,%rdi
22919 + jnc 3f
22920 + mov %cs,%edi
22921 + cmp $__KERNEL_CS,%edi
22922 + jnz 2f
22923 +1:
22924 +#endif
22925 +
22926 +#ifdef CONFIG_PAX_MEMORY_UDEREF
22927 + 661: jmp 111f
22928 + .pushsection .altinstr_replacement, "a"
22929 + 662: ASM_NOP2
22930 + .popsection
22931 + .pushsection .altinstructions, "a"
22932 + altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
22933 + .popsection
22934 + GET_CR3_INTO_RDI
22935 + cmp $0,%dil
22936 + jnz 112f
22937 + mov $__KERNEL_DS,%edi
22938 + mov %edi,%ss
22939 + jmp 111f
22940 +112: cmp $1,%dil
22941 + jz 113f
22942 + ud2
22943 +113: sub $4097,%rdi
22944 + bts $63,%rdi
22945 + SET_RDI_INTO_CR3
22946 + mov $__UDEREF_KERNEL_DS,%edi
22947 + mov %edi,%ss
22948 +111:
22949 +#endif
22950 +
22951 +#ifdef CONFIG_PARAVIRT
22952 + PV_RESTORE_REGS(CLBR_RDI)
22953 +#endif
22954 +
22955 + popq %rdi
22956 + pax_force_retaddr
22957 + retq
22958 +
22959 +#ifdef CONFIG_PAX_KERNEXEC
22960 +2: ljmpq __KERNEL_CS,1b
22961 +3: ljmpq __KERNEXEC_KERNEL_CS,4f
22962 +4: SET_RDI_INTO_CR0
22963 + jmp 1b
22964 +#endif
22965 +ENDPROC(pax_enter_kernel)
22966 +
22967 +ENTRY(pax_exit_kernel)
22968 + pushq %rdi
22969 +
22970 +#ifdef CONFIG_PARAVIRT
22971 + PV_SAVE_REGS(CLBR_RDI)
22972 +#endif
22973 +
22974 +#ifdef CONFIG_PAX_KERNEXEC
22975 + mov %cs,%rdi
22976 + cmp $__KERNEXEC_KERNEL_CS,%edi
22977 + jz 2f
22978 + GET_CR0_INTO_RDI
22979 + bts $16,%rdi
22980 + jnc 4f
22981 +1:
22982 +#endif
22983 +
22984 +#ifdef CONFIG_PAX_MEMORY_UDEREF
22985 + 661: jmp 111f
22986 + .pushsection .altinstr_replacement, "a"
22987 + 662: ASM_NOP2
22988 + .popsection
22989 + .pushsection .altinstructions, "a"
22990 + altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
22991 + .popsection
22992 + mov %ss,%edi
22993 + cmp $__UDEREF_KERNEL_DS,%edi
22994 + jnz 111f
22995 + GET_CR3_INTO_RDI
22996 + cmp $0,%dil
22997 + jz 112f
22998 + ud2
22999 +112: add $4097,%rdi
23000 + bts $63,%rdi
23001 + SET_RDI_INTO_CR3
23002 + mov $__KERNEL_DS,%edi
23003 + mov %edi,%ss
23004 +111:
23005 +#endif
23006 +
23007 +#ifdef CONFIG_PARAVIRT
23008 + PV_RESTORE_REGS(CLBR_RDI);
23009 +#endif
23010 +
23011 + popq %rdi
23012 + pax_force_retaddr
23013 + retq
23014 +
23015 +#ifdef CONFIG_PAX_KERNEXEC
23016 +2: GET_CR0_INTO_RDI
23017 + btr $16,%rdi
23018 + jnc 4f
23019 + ljmpq __KERNEL_CS,3f
23020 +3: SET_RDI_INTO_CR0
23021 + jmp 1b
23022 +4: ud2
23023 + jmp 4b
23024 +#endif
23025 +ENDPROC(pax_exit_kernel)
23026 +#endif
23027 +
23028 + .macro pax_enter_kernel_user
23029 + pax_set_fptr_mask
23030 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23031 + call pax_enter_kernel_user
23032 +#endif
23033 + .endm
23034 +
23035 + .macro pax_exit_kernel_user
23036 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23037 + call pax_exit_kernel_user
23038 +#endif
23039 +#ifdef CONFIG_PAX_RANDKSTACK
23040 + pushq %rax
23041 + pushq %r11
23042 + call pax_randomize_kstack
23043 + popq %r11
23044 + popq %rax
23045 +#endif
23046 + .endm
23047 +
23048 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23049 +ENTRY(pax_enter_kernel_user)
23050 + pushq %rdi
23051 + pushq %rbx
23052 +
23053 +#ifdef CONFIG_PARAVIRT
23054 + PV_SAVE_REGS(CLBR_RDI)
23055 +#endif
23056 +
23057 + 661: jmp 111f
23058 + .pushsection .altinstr_replacement, "a"
23059 + 662: ASM_NOP2
23060 + .popsection
23061 + .pushsection .altinstructions, "a"
23062 + altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23063 + .popsection
23064 + GET_CR3_INTO_RDI
23065 + cmp $1,%dil
23066 + jnz 4f
23067 + sub $4097,%rdi
23068 + bts $63,%rdi
23069 + SET_RDI_INTO_CR3
23070 + jmp 3f
23071 +111:
23072 +
23073 + GET_CR3_INTO_RDI
23074 + mov %rdi,%rbx
23075 + add $__START_KERNEL_map,%rbx
23076 + sub phys_base(%rip),%rbx
23077 +
23078 +#ifdef CONFIG_PARAVIRT
23079 + cmpl $0, pv_info+PARAVIRT_enabled
23080 + jz 1f
23081 + pushq %rdi
23082 + i = 0
23083 + .rept USER_PGD_PTRS
23084 + mov i*8(%rbx),%rsi
23085 + mov $0,%sil
23086 + lea i*8(%rbx),%rdi
23087 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23088 + i = i + 1
23089 + .endr
23090 + popq %rdi
23091 + jmp 2f
23092 +1:
23093 +#endif
23094 +
23095 + i = 0
23096 + .rept USER_PGD_PTRS
23097 + movb $0,i*8(%rbx)
23098 + i = i + 1
23099 + .endr
23100 +
23101 +2: SET_RDI_INTO_CR3
23102 +
23103 +#ifdef CONFIG_PAX_KERNEXEC
23104 + GET_CR0_INTO_RDI
23105 + bts $16,%rdi
23106 + SET_RDI_INTO_CR0
23107 +#endif
23108 +
23109 +3:
23110 +
23111 +#ifdef CONFIG_PARAVIRT
23112 + PV_RESTORE_REGS(CLBR_RDI)
23113 +#endif
23114 +
23115 + popq %rbx
23116 + popq %rdi
23117 + pax_force_retaddr
23118 + retq
23119 +4: ud2
23120 +ENDPROC(pax_enter_kernel_user)
23121 +
23122 +ENTRY(pax_exit_kernel_user)
23123 + pushq %rdi
23124 + pushq %rbx
23125 +
23126 +#ifdef CONFIG_PARAVIRT
23127 + PV_SAVE_REGS(CLBR_RDI)
23128 +#endif
23129 +
23130 + GET_CR3_INTO_RDI
23131 + 661: jmp 1f
23132 + .pushsection .altinstr_replacement, "a"
23133 + 662: ASM_NOP2
23134 + .popsection
23135 + .pushsection .altinstructions, "a"
23136 + altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23137 + .popsection
23138 + cmp $0,%dil
23139 + jnz 3f
23140 + add $4097,%rdi
23141 + bts $63,%rdi
23142 + SET_RDI_INTO_CR3
23143 + jmp 2f
23144 +1:
23145 +
23146 + mov %rdi,%rbx
23147 +
23148 +#ifdef CONFIG_PAX_KERNEXEC
23149 + GET_CR0_INTO_RDI
23150 + btr $16,%rdi
23151 + jnc 3f
23152 + SET_RDI_INTO_CR0
23153 +#endif
23154 +
23155 + add $__START_KERNEL_map,%rbx
23156 + sub phys_base(%rip),%rbx
23157 +
23158 +#ifdef CONFIG_PARAVIRT
23159 + cmpl $0, pv_info+PARAVIRT_enabled
23160 + jz 1f
23161 + i = 0
23162 + .rept USER_PGD_PTRS
23163 + mov i*8(%rbx),%rsi
23164 + mov $0x67,%sil
23165 + lea i*8(%rbx),%rdi
23166 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23167 + i = i + 1
23168 + .endr
23169 + jmp 2f
23170 +1:
23171 +#endif
23172 +
23173 + i = 0
23174 + .rept USER_PGD_PTRS
23175 + movb $0x67,i*8(%rbx)
23176 + i = i + 1
23177 + .endr
23178 +2:
23179 +
23180 +#ifdef CONFIG_PARAVIRT
23181 + PV_RESTORE_REGS(CLBR_RDI)
23182 +#endif
23183 +
23184 + popq %rbx
23185 + popq %rdi
23186 + pax_force_retaddr
23187 + retq
23188 +3: ud2
23189 +ENDPROC(pax_exit_kernel_user)
23190 +#endif
23191 +
23192 + .macro pax_enter_kernel_nmi
23193 + pax_set_fptr_mask
23194 +
23195 +#ifdef CONFIG_PAX_KERNEXEC
23196 + GET_CR0_INTO_RDI
23197 + bts $16,%rdi
23198 + jc 110f
23199 + SET_RDI_INTO_CR0
23200 + or $2,%ebx
23201 +110:
23202 +#endif
23203 +
23204 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23205 + 661: jmp 111f
23206 + .pushsection .altinstr_replacement, "a"
23207 + 662: ASM_NOP2
23208 + .popsection
23209 + .pushsection .altinstructions, "a"
23210 + altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23211 + .popsection
23212 + GET_CR3_INTO_RDI
23213 + cmp $0,%dil
23214 + jz 111f
23215 + sub $4097,%rdi
23216 + or $4,%ebx
23217 + bts $63,%rdi
23218 + SET_RDI_INTO_CR3
23219 + mov $__UDEREF_KERNEL_DS,%edi
23220 + mov %edi,%ss
23221 +111:
23222 +#endif
23223 + .endm
23224 +
23225 + .macro pax_exit_kernel_nmi
23226 +#ifdef CONFIG_PAX_KERNEXEC
23227 + btr $1,%ebx
23228 + jnc 110f
23229 + GET_CR0_INTO_RDI
23230 + btr $16,%rdi
23231 + SET_RDI_INTO_CR0
23232 +110:
23233 +#endif
23234 +
23235 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23236 + btr $2,%ebx
23237 + jnc 111f
23238 + GET_CR3_INTO_RDI
23239 + add $4097,%rdi
23240 + bts $63,%rdi
23241 + SET_RDI_INTO_CR3
23242 + mov $__KERNEL_DS,%edi
23243 + mov %edi,%ss
23244 +111:
23245 +#endif
23246 + .endm
23247 +
23248 + .macro pax_erase_kstack
23249 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23250 + call pax_erase_kstack
23251 +#endif
23252 + .endm
23253 +
23254 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23255 +ENTRY(pax_erase_kstack)
23256 + pushq %rdi
23257 + pushq %rcx
23258 + pushq %rax
23259 + pushq %r11
23260 +
23261 + GET_THREAD_INFO(%r11)
23262 + mov TI_lowest_stack(%r11), %rdi
23263 + mov $-0xBEEF, %rax
23264 + std
23265 +
23266 +1: mov %edi, %ecx
23267 + and $THREAD_SIZE_asm - 1, %ecx
23268 + shr $3, %ecx
23269 + repne scasq
23270 + jecxz 2f
23271 +
23272 + cmp $2*8, %ecx
23273 + jc 2f
23274 +
23275 + mov $2*8, %ecx
23276 + repe scasq
23277 + jecxz 2f
23278 + jne 1b
23279 +
23280 +2: cld
23281 + mov %esp, %ecx
23282 + sub %edi, %ecx
23283 +
23284 + cmp $THREAD_SIZE_asm, %rcx
23285 + jb 3f
23286 + ud2
23287 +3:
23288 +
23289 + shr $3, %ecx
23290 + rep stosq
23291 +
23292 + mov TI_task_thread_sp0(%r11), %rdi
23293 + sub $256, %rdi
23294 + mov %rdi, TI_lowest_stack(%r11)
23295 +
23296 + popq %r11
23297 + popq %rax
23298 + popq %rcx
23299 + popq %rdi
23300 + pax_force_retaddr
23301 + ret
23302 +ENDPROC(pax_erase_kstack)
23303 +#endif
23304
23305 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
23306 #ifdef CONFIG_TRACE_IRQFLAGS
23307 @@ -320,7 +753,7 @@ ENDPROC(native_usergs_sysret64)
23308 .endm
23309
23310 .macro TRACE_IRQS_IRETQ_DEBUG offset=ARGOFFSET
23311 - bt $9,EFLAGS-\offset(%rsp) /* interrupts off? */
23312 + bt $X86_EFLAGS_IF_BIT,EFLAGS-\offset(%rsp) /* interrupts off? */
23313 jnc 1f
23314 TRACE_IRQS_ON_DEBUG
23315 1:
23316 @@ -358,27 +791,6 @@ ENDPROC(native_usergs_sysret64)
23317 movq \tmp,R11+\offset(%rsp)
23318 .endm
23319
23320 - .macro FAKE_STACK_FRAME child_rip
23321 - /* push in order ss, rsp, eflags, cs, rip */
23322 - xorl %eax, %eax
23323 - pushq_cfi $__KERNEL_DS /* ss */
23324 - /*CFI_REL_OFFSET ss,0*/
23325 - pushq_cfi %rax /* rsp */
23326 - CFI_REL_OFFSET rsp,0
23327 - pushq_cfi $(X86_EFLAGS_IF|X86_EFLAGS_FIXED) /* eflags - interrupts on */
23328 - /*CFI_REL_OFFSET rflags,0*/
23329 - pushq_cfi $__KERNEL_CS /* cs */
23330 - /*CFI_REL_OFFSET cs,0*/
23331 - pushq_cfi \child_rip /* rip */
23332 - CFI_REL_OFFSET rip,0
23333 - pushq_cfi %rax /* orig rax */
23334 - .endm
23335 -
23336 - .macro UNFAKE_STACK_FRAME
23337 - addq $8*6, %rsp
23338 - CFI_ADJUST_CFA_OFFSET -(6*8)
23339 - .endm
23340 -
23341 /*
23342 * initial frame state for interrupts (and exceptions without error code)
23343 */
23344 @@ -445,25 +857,26 @@ ENDPROC(native_usergs_sysret64)
23345 /* save partial stack frame */
23346 .macro SAVE_ARGS_IRQ
23347 cld
23348 - /* start from rbp in pt_regs and jump over */
23349 - movq_cfi rdi, (RDI-RBP)
23350 - movq_cfi rsi, (RSI-RBP)
23351 - movq_cfi rdx, (RDX-RBP)
23352 - movq_cfi rcx, (RCX-RBP)
23353 - movq_cfi rax, (RAX-RBP)
23354 - movq_cfi r8, (R8-RBP)
23355 - movq_cfi r9, (R9-RBP)
23356 - movq_cfi r10, (R10-RBP)
23357 - movq_cfi r11, (R11-RBP)
23358 + /* start from r15 in pt_regs and jump over */
23359 + movq_cfi rdi, RDI
23360 + movq_cfi rsi, RSI
23361 + movq_cfi rdx, RDX
23362 + movq_cfi rcx, RCX
23363 + movq_cfi rax, RAX
23364 + movq_cfi r8, R8
23365 + movq_cfi r9, R9
23366 + movq_cfi r10, R10
23367 + movq_cfi r11, R11
23368 + movq_cfi r12, R12
23369
23370 /* Save rbp so that we can unwind from get_irq_regs() */
23371 - movq_cfi rbp, 0
23372 + movq_cfi rbp, RBP
23373
23374 /* Save previous stack value */
23375 movq %rsp, %rsi
23376
23377 - leaq -RBP(%rsp),%rdi /* arg1 for handler */
23378 - testl $3, CS-RBP(%rsi)
23379 + movq %rsp,%rdi /* arg1 for handler */
23380 + testb $3, CS(%rsi)
23381 je 1f
23382 SWAPGS
23383 /*
23384 @@ -483,6 +896,18 @@ ENDPROC(native_usergs_sysret64)
23385 0x06 /* DW_OP_deref */, \
23386 0x08 /* DW_OP_const1u */, SS+8-RBP, \
23387 0x22 /* DW_OP_plus */
23388 +
23389 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23390 + testb $3, CS(%rdi)
23391 + jnz 1f
23392 + pax_enter_kernel
23393 + jmp 2f
23394 +1: pax_enter_kernel_user
23395 +2:
23396 +#else
23397 + pax_enter_kernel
23398 +#endif
23399 +
23400 /* We entered an interrupt context - irqs are off: */
23401 TRACE_IRQS_OFF
23402 .endm
23403 @@ -514,9 +939,52 @@ ENTRY(save_paranoid)
23404 js 1f /* negative -> in kernel */
23405 SWAPGS
23406 xorl %ebx,%ebx
23407 -1: ret
23408 +1:
23409 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23410 + testb $3, CS+8(%rsp)
23411 + jnz 1f
23412 + pax_enter_kernel
23413 + jmp 2f
23414 +1: pax_enter_kernel_user
23415 +2:
23416 +#else
23417 + pax_enter_kernel
23418 +#endif
23419 + pax_force_retaddr
23420 + ret
23421 CFI_ENDPROC
23422 -END(save_paranoid)
23423 +ENDPROC(save_paranoid)
23424 +
23425 +ENTRY(save_paranoid_nmi)
23426 + XCPT_FRAME 1 RDI+8
23427 + cld
23428 + movq_cfi rdi, RDI+8
23429 + movq_cfi rsi, RSI+8
23430 + movq_cfi rdx, RDX+8
23431 + movq_cfi rcx, RCX+8
23432 + movq_cfi rax, RAX+8
23433 + movq_cfi r8, R8+8
23434 + movq_cfi r9, R9+8
23435 + movq_cfi r10, R10+8
23436 + movq_cfi r11, R11+8
23437 + movq_cfi rbx, RBX+8
23438 + movq_cfi rbp, RBP+8
23439 + movq_cfi r12, R12+8
23440 + movq_cfi r13, R13+8
23441 + movq_cfi r14, R14+8
23442 + movq_cfi r15, R15+8
23443 + movl $1,%ebx
23444 + movl $MSR_GS_BASE,%ecx
23445 + rdmsr
23446 + testl %edx,%edx
23447 + js 1f /* negative -> in kernel */
23448 + SWAPGS
23449 + xorl %ebx,%ebx
23450 +1: pax_enter_kernel_nmi
23451 + pax_force_retaddr
23452 + ret
23453 + CFI_ENDPROC
23454 +ENDPROC(save_paranoid_nmi)
23455 .popsection
23456
23457 /*
23458 @@ -538,7 +1006,7 @@ ENTRY(ret_from_fork)
23459
23460 RESTORE_REST
23461
23462 - testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23463 + testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23464 jz 1f
23465
23466 testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET
23467 @@ -548,15 +1016,13 @@ ENTRY(ret_from_fork)
23468 jmp ret_from_sys_call # go to the SYSRET fastpath
23469
23470 1:
23471 - subq $REST_SKIP, %rsp # leave space for volatiles
23472 - CFI_ADJUST_CFA_OFFSET REST_SKIP
23473 movq %rbp, %rdi
23474 call *%rbx
23475 movl $0, RAX(%rsp)
23476 RESTORE_REST
23477 jmp int_ret_from_sys_call
23478 CFI_ENDPROC
23479 -END(ret_from_fork)
23480 +ENDPROC(ret_from_fork)
23481
23482 /*
23483 * System call entry. Up to 6 arguments in registers are supported.
23484 @@ -593,7 +1059,7 @@ END(ret_from_fork)
23485 ENTRY(system_call)
23486 CFI_STARTPROC simple
23487 CFI_SIGNAL_FRAME
23488 - CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
23489 + CFI_DEF_CFA rsp,0
23490 CFI_REGISTER rip,rcx
23491 /*CFI_REGISTER rflags,r11*/
23492 SWAPGS_UNSAFE_STACK
23493 @@ -606,16 +1072,23 @@ GLOBAL(system_call_after_swapgs)
23494
23495 movq %rsp,PER_CPU_VAR(old_rsp)
23496 movq PER_CPU_VAR(kernel_stack),%rsp
23497 + SAVE_ARGS 8*6,0
23498 + pax_enter_kernel_user
23499 +
23500 +#ifdef CONFIG_PAX_RANDKSTACK
23501 + pax_erase_kstack
23502 +#endif
23503 +
23504 /*
23505 * No need to follow this irqs off/on section - it's straight
23506 * and short:
23507 */
23508 ENABLE_INTERRUPTS(CLBR_NONE)
23509 - SAVE_ARGS 8,0
23510 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
23511 movq %rcx,RIP-ARGOFFSET(%rsp)
23512 CFI_REL_OFFSET rip,RIP-ARGOFFSET
23513 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23514 + GET_THREAD_INFO(%rcx)
23515 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
23516 jnz tracesys
23517 system_call_fastpath:
23518 #if __SYSCALL_MASK == ~0
23519 @@ -639,10 +1112,13 @@ sysret_check:
23520 LOCKDEP_SYS_EXIT
23521 DISABLE_INTERRUPTS(CLBR_NONE)
23522 TRACE_IRQS_OFF
23523 - movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx
23524 + GET_THREAD_INFO(%rcx)
23525 + movl TI_flags(%rcx),%edx
23526 andl %edi,%edx
23527 jnz sysret_careful
23528 CFI_REMEMBER_STATE
23529 + pax_exit_kernel_user
23530 + pax_erase_kstack
23531 /*
23532 * sysretq will re-enable interrupts:
23533 */
23534 @@ -701,6 +1177,9 @@ auditsys:
23535 movq %rax,%rsi /* 2nd arg: syscall number */
23536 movl $AUDIT_ARCH_X86_64,%edi /* 1st arg: audit arch */
23537 call __audit_syscall_entry
23538 +
23539 + pax_erase_kstack
23540 +
23541 LOAD_ARGS 0 /* reload call-clobbered registers */
23542 jmp system_call_fastpath
23543
23544 @@ -722,7 +1201,7 @@ sysret_audit:
23545 /* Do syscall tracing */
23546 tracesys:
23547 #ifdef CONFIG_AUDITSYSCALL
23548 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23549 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
23550 jz auditsys
23551 #endif
23552 SAVE_REST
23553 @@ -730,12 +1209,15 @@ tracesys:
23554 FIXUP_TOP_OF_STACK %rdi
23555 movq %rsp,%rdi
23556 call syscall_trace_enter
23557 +
23558 + pax_erase_kstack
23559 +
23560 /*
23561 * Reload arg registers from stack in case ptrace changed them.
23562 * We don't reload %rax because syscall_trace_enter() returned
23563 * the value it wants us to use in the table lookup.
23564 */
23565 - LOAD_ARGS ARGOFFSET, 1
23566 + LOAD_ARGS 1
23567 RESTORE_REST
23568 #if __SYSCALL_MASK == ~0
23569 cmpq $__NR_syscall_max,%rax
23570 @@ -765,7 +1247,9 @@ GLOBAL(int_with_check)
23571 andl %edi,%edx
23572 jnz int_careful
23573 andl $~TS_COMPAT,TI_status(%rcx)
23574 - jmp retint_swapgs
23575 + pax_exit_kernel_user
23576 + pax_erase_kstack
23577 + jmp retint_swapgs_pax
23578
23579 /* Either reschedule or signal or syscall exit tracking needed. */
23580 /* First do a reschedule test. */
23581 @@ -811,7 +1295,7 @@ int_restore_rest:
23582 TRACE_IRQS_OFF
23583 jmp int_with_check
23584 CFI_ENDPROC
23585 -END(system_call)
23586 +ENDPROC(system_call)
23587
23588 .macro FORK_LIKE func
23589 ENTRY(stub_\func)
23590 @@ -824,9 +1308,10 @@ ENTRY(stub_\func)
23591 DEFAULT_FRAME 0 8 /* offset 8: return address */
23592 call sys_\func
23593 RESTORE_TOP_OF_STACK %r11, 8
23594 - ret $REST_SKIP /* pop extended registers */
23595 + pax_force_retaddr
23596 + ret
23597 CFI_ENDPROC
23598 -END(stub_\func)
23599 +ENDPROC(stub_\func)
23600 .endm
23601
23602 .macro FIXED_FRAME label,func
23603 @@ -836,9 +1321,10 @@ ENTRY(\label)
23604 FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
23605 call \func
23606 RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
23607 + pax_force_retaddr
23608 ret
23609 CFI_ENDPROC
23610 -END(\label)
23611 +ENDPROC(\label)
23612 .endm
23613
23614 FORK_LIKE clone
23615 @@ -846,19 +1332,6 @@ END(\label)
23616 FORK_LIKE vfork
23617 FIXED_FRAME stub_iopl, sys_iopl
23618
23619 -ENTRY(ptregscall_common)
23620 - DEFAULT_FRAME 1 8 /* offset 8: return address */
23621 - RESTORE_TOP_OF_STACK %r11, 8
23622 - movq_cfi_restore R15+8, r15
23623 - movq_cfi_restore R14+8, r14
23624 - movq_cfi_restore R13+8, r13
23625 - movq_cfi_restore R12+8, r12
23626 - movq_cfi_restore RBP+8, rbp
23627 - movq_cfi_restore RBX+8, rbx
23628 - ret $REST_SKIP /* pop extended registers */
23629 - CFI_ENDPROC
23630 -END(ptregscall_common)
23631 -
23632 ENTRY(stub_execve)
23633 CFI_STARTPROC
23634 addq $8, %rsp
23635 @@ -870,7 +1343,7 @@ ENTRY(stub_execve)
23636 RESTORE_REST
23637 jmp int_ret_from_sys_call
23638 CFI_ENDPROC
23639 -END(stub_execve)
23640 +ENDPROC(stub_execve)
23641
23642 /*
23643 * sigreturn is special because it needs to restore all registers on return.
23644 @@ -887,7 +1360,7 @@ ENTRY(stub_rt_sigreturn)
23645 RESTORE_REST
23646 jmp int_ret_from_sys_call
23647 CFI_ENDPROC
23648 -END(stub_rt_sigreturn)
23649 +ENDPROC(stub_rt_sigreturn)
23650
23651 #ifdef CONFIG_X86_X32_ABI
23652 ENTRY(stub_x32_rt_sigreturn)
23653 @@ -901,7 +1374,7 @@ ENTRY(stub_x32_rt_sigreturn)
23654 RESTORE_REST
23655 jmp int_ret_from_sys_call
23656 CFI_ENDPROC
23657 -END(stub_x32_rt_sigreturn)
23658 +ENDPROC(stub_x32_rt_sigreturn)
23659
23660 ENTRY(stub_x32_execve)
23661 CFI_STARTPROC
23662 @@ -915,7 +1388,7 @@ ENTRY(stub_x32_execve)
23663 RESTORE_REST
23664 jmp int_ret_from_sys_call
23665 CFI_ENDPROC
23666 -END(stub_x32_execve)
23667 +ENDPROC(stub_x32_execve)
23668
23669 #endif
23670
23671 @@ -952,7 +1425,7 @@ vector=vector+1
23672 2: jmp common_interrupt
23673 .endr
23674 CFI_ENDPROC
23675 -END(irq_entries_start)
23676 +ENDPROC(irq_entries_start)
23677
23678 .previous
23679 END(interrupt)
23680 @@ -969,8 +1442,8 @@ END(interrupt)
23681 /* 0(%rsp): ~(interrupt number) */
23682 .macro interrupt func
23683 /* reserve pt_regs for scratch regs and rbp */
23684 - subq $ORIG_RAX-RBP, %rsp
23685 - CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
23686 + subq $ORIG_RAX, %rsp
23687 + CFI_ADJUST_CFA_OFFSET ORIG_RAX
23688 SAVE_ARGS_IRQ
23689 call \func
23690 .endm
23691 @@ -997,14 +1470,14 @@ ret_from_intr:
23692
23693 /* Restore saved previous stack */
23694 popq %rsi
23695 - CFI_DEF_CFA rsi,SS+8-RBP /* reg/off reset after def_cfa_expr */
23696 - leaq ARGOFFSET-RBP(%rsi), %rsp
23697 + CFI_DEF_CFA rsi,SS+8 /* reg/off reset after def_cfa_expr */
23698 + movq %rsi, %rsp
23699 CFI_DEF_CFA_REGISTER rsp
23700 - CFI_ADJUST_CFA_OFFSET RBP-ARGOFFSET
23701 + CFI_ADJUST_CFA_OFFSET -ARGOFFSET
23702
23703 exit_intr:
23704 GET_THREAD_INFO(%rcx)
23705 - testl $3,CS-ARGOFFSET(%rsp)
23706 + testb $3,CS-ARGOFFSET(%rsp)
23707 je retint_kernel
23708
23709 /* Interrupt came from user space */
23710 @@ -1026,12 +1499,16 @@ retint_swapgs: /* return to user-space */
23711 * The iretq could re-enable interrupts:
23712 */
23713 DISABLE_INTERRUPTS(CLBR_ANY)
23714 + pax_exit_kernel_user
23715 +retint_swapgs_pax:
23716 TRACE_IRQS_IRETQ
23717 SWAPGS
23718 jmp restore_args
23719
23720 retint_restore_args: /* return to kernel space */
23721 DISABLE_INTERRUPTS(CLBR_ANY)
23722 + pax_exit_kernel
23723 + pax_force_retaddr (RIP-ARGOFFSET)
23724 /*
23725 * The iretq could re-enable interrupts:
23726 */
23727 @@ -1112,7 +1589,7 @@ ENTRY(retint_kernel)
23728 #endif
23729
23730 CFI_ENDPROC
23731 -END(common_interrupt)
23732 +ENDPROC(common_interrupt)
23733 /*
23734 * End of kprobes section
23735 */
23736 @@ -1130,7 +1607,7 @@ ENTRY(\sym)
23737 interrupt \do_sym
23738 jmp ret_from_intr
23739 CFI_ENDPROC
23740 -END(\sym)
23741 +ENDPROC(\sym)
23742 .endm
23743
23744 #ifdef CONFIG_TRACING
23745 @@ -1218,7 +1695,7 @@ ENTRY(\sym)
23746 call \do_sym
23747 jmp error_exit /* %ebx: no swapgs flag */
23748 CFI_ENDPROC
23749 -END(\sym)
23750 +ENDPROC(\sym)
23751 .endm
23752
23753 .macro paranoidzeroentry sym do_sym
23754 @@ -1236,10 +1713,10 @@ ENTRY(\sym)
23755 call \do_sym
23756 jmp paranoid_exit /* %ebx: no swapgs flag */
23757 CFI_ENDPROC
23758 -END(\sym)
23759 +ENDPROC(\sym)
23760 .endm
23761
23762 -#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
23763 +#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r13)
23764 .macro paranoidzeroentry_ist sym do_sym ist
23765 ENTRY(\sym)
23766 INTR_FRAME
23767 @@ -1252,12 +1729,18 @@ ENTRY(\sym)
23768 TRACE_IRQS_OFF_DEBUG
23769 movq %rsp,%rdi /* pt_regs pointer */
23770 xorl %esi,%esi /* no error code */
23771 +#ifdef CONFIG_SMP
23772 + imul $TSS_size, PER_CPU_VAR(cpu_number), %r13d
23773 + lea init_tss(%r13), %r13
23774 +#else
23775 + lea init_tss(%rip), %r13
23776 +#endif
23777 subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
23778 call \do_sym
23779 addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
23780 jmp paranoid_exit /* %ebx: no swapgs flag */
23781 CFI_ENDPROC
23782 -END(\sym)
23783 +ENDPROC(\sym)
23784 .endm
23785
23786 .macro errorentry sym do_sym
23787 @@ -1275,7 +1758,7 @@ ENTRY(\sym)
23788 call \do_sym
23789 jmp error_exit /* %ebx: no swapgs flag */
23790 CFI_ENDPROC
23791 -END(\sym)
23792 +ENDPROC(\sym)
23793 .endm
23794
23795 #ifdef CONFIG_TRACING
23796 @@ -1306,7 +1789,7 @@ ENTRY(\sym)
23797 call \do_sym
23798 jmp paranoid_exit /* %ebx: no swapgs flag */
23799 CFI_ENDPROC
23800 -END(\sym)
23801 +ENDPROC(\sym)
23802 .endm
23803
23804 zeroentry divide_error do_divide_error
23805 @@ -1336,9 +1819,10 @@ gs_change:
23806 2: mfence /* workaround */
23807 SWAPGS
23808 popfq_cfi
23809 + pax_force_retaddr
23810 ret
23811 CFI_ENDPROC
23812 -END(native_load_gs_index)
23813 +ENDPROC(native_load_gs_index)
23814
23815 _ASM_EXTABLE(gs_change,bad_gs)
23816 .section .fixup,"ax"
23817 @@ -1366,9 +1850,10 @@ ENTRY(do_softirq_own_stack)
23818 CFI_DEF_CFA_REGISTER rsp
23819 CFI_ADJUST_CFA_OFFSET -8
23820 decl PER_CPU_VAR(irq_count)
23821 + pax_force_retaddr
23822 ret
23823 CFI_ENDPROC
23824 -END(do_softirq_own_stack)
23825 +ENDPROC(do_softirq_own_stack)
23826
23827 #ifdef CONFIG_XEN
23828 zeroentry xen_hypervisor_callback xen_do_hypervisor_callback
23829 @@ -1406,7 +1891,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs)
23830 decl PER_CPU_VAR(irq_count)
23831 jmp error_exit
23832 CFI_ENDPROC
23833 -END(xen_do_hypervisor_callback)
23834 +ENDPROC(xen_do_hypervisor_callback)
23835
23836 /*
23837 * Hypervisor uses this for application faults while it executes.
23838 @@ -1465,7 +1950,7 @@ ENTRY(xen_failsafe_callback)
23839 SAVE_ALL
23840 jmp error_exit
23841 CFI_ENDPROC
23842 -END(xen_failsafe_callback)
23843 +ENDPROC(xen_failsafe_callback)
23844
23845 apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
23846 xen_hvm_callback_vector xen_evtchn_do_upcall
23847 @@ -1517,18 +2002,33 @@ ENTRY(paranoid_exit)
23848 DEFAULT_FRAME
23849 DISABLE_INTERRUPTS(CLBR_NONE)
23850 TRACE_IRQS_OFF_DEBUG
23851 - testl %ebx,%ebx /* swapgs needed? */
23852 + testl $1,%ebx /* swapgs needed? */
23853 jnz paranoid_restore
23854 - testl $3,CS(%rsp)
23855 + testb $3,CS(%rsp)
23856 jnz paranoid_userspace
23857 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23858 + pax_exit_kernel
23859 + TRACE_IRQS_IRETQ 0
23860 + SWAPGS_UNSAFE_STACK
23861 + RESTORE_ALL 8
23862 + pax_force_retaddr_bts
23863 + jmp irq_return
23864 +#endif
23865 paranoid_swapgs:
23866 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23867 + pax_exit_kernel_user
23868 +#else
23869 + pax_exit_kernel
23870 +#endif
23871 TRACE_IRQS_IRETQ 0
23872 SWAPGS_UNSAFE_STACK
23873 RESTORE_ALL 8
23874 jmp irq_return
23875 paranoid_restore:
23876 + pax_exit_kernel
23877 TRACE_IRQS_IRETQ_DEBUG 0
23878 RESTORE_ALL 8
23879 + pax_force_retaddr_bts
23880 jmp irq_return
23881 paranoid_userspace:
23882 GET_THREAD_INFO(%rcx)
23883 @@ -1557,7 +2057,7 @@ paranoid_schedule:
23884 TRACE_IRQS_OFF
23885 jmp paranoid_userspace
23886 CFI_ENDPROC
23887 -END(paranoid_exit)
23888 +ENDPROC(paranoid_exit)
23889
23890 /*
23891 * Exception entry point. This expects an error code/orig_rax on the stack.
23892 @@ -1584,12 +2084,23 @@ ENTRY(error_entry)
23893 movq_cfi r14, R14+8
23894 movq_cfi r15, R15+8
23895 xorl %ebx,%ebx
23896 - testl $3,CS+8(%rsp)
23897 + testb $3,CS+8(%rsp)
23898 je error_kernelspace
23899 error_swapgs:
23900 SWAPGS
23901 error_sti:
23902 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23903 + testb $3, CS+8(%rsp)
23904 + jnz 1f
23905 + pax_enter_kernel
23906 + jmp 2f
23907 +1: pax_enter_kernel_user
23908 +2:
23909 +#else
23910 + pax_enter_kernel
23911 +#endif
23912 TRACE_IRQS_OFF
23913 + pax_force_retaddr
23914 ret
23915
23916 /*
23917 @@ -1616,7 +2127,7 @@ bstep_iret:
23918 movq %rcx,RIP+8(%rsp)
23919 jmp error_swapgs
23920 CFI_ENDPROC
23921 -END(error_entry)
23922 +ENDPROC(error_entry)
23923
23924
23925 /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */
23926 @@ -1627,7 +2138,7 @@ ENTRY(error_exit)
23927 DISABLE_INTERRUPTS(CLBR_NONE)
23928 TRACE_IRQS_OFF
23929 GET_THREAD_INFO(%rcx)
23930 - testl %eax,%eax
23931 + testl $1,%eax
23932 jne retint_kernel
23933 LOCKDEP_SYS_EXIT_IRQ
23934 movl TI_flags(%rcx),%edx
23935 @@ -1636,7 +2147,7 @@ ENTRY(error_exit)
23936 jnz retint_careful
23937 jmp retint_swapgs
23938 CFI_ENDPROC
23939 -END(error_exit)
23940 +ENDPROC(error_exit)
23941
23942 /*
23943 * Test if a given stack is an NMI stack or not.
23944 @@ -1694,9 +2205,11 @@ ENTRY(nmi)
23945 * If %cs was not the kernel segment, then the NMI triggered in user
23946 * space, which means it is definitely not nested.
23947 */
23948 + cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
23949 + je 1f
23950 cmpl $__KERNEL_CS, 16(%rsp)
23951 jne first_nmi
23952 -
23953 +1:
23954 /*
23955 * Check the special variable on the stack to see if NMIs are
23956 * executing.
23957 @@ -1730,8 +2243,7 @@ nested_nmi:
23958
23959 1:
23960 /* Set up the interrupted NMIs stack to jump to repeat_nmi */
23961 - leaq -1*8(%rsp), %rdx
23962 - movq %rdx, %rsp
23963 + subq $8, %rsp
23964 CFI_ADJUST_CFA_OFFSET 1*8
23965 leaq -10*8(%rsp), %rdx
23966 pushq_cfi $__KERNEL_DS
23967 @@ -1749,6 +2261,7 @@ nested_nmi_out:
23968 CFI_RESTORE rdx
23969
23970 /* No need to check faults here */
23971 +# pax_force_retaddr_bts
23972 INTERRUPT_RETURN
23973
23974 CFI_RESTORE_STATE
23975 @@ -1845,13 +2358,13 @@ end_repeat_nmi:
23976 subq $ORIG_RAX-R15, %rsp
23977 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
23978 /*
23979 - * Use save_paranoid to handle SWAPGS, but no need to use paranoid_exit
23980 + * Use save_paranoid_nmi to handle SWAPGS, but no need to use paranoid_exit
23981 * as we should not be calling schedule in NMI context.
23982 * Even with normal interrupts enabled. An NMI should not be
23983 * setting NEED_RESCHED or anything that normal interrupts and
23984 * exceptions might do.
23985 */
23986 - call save_paranoid
23987 + call save_paranoid_nmi
23988 DEFAULT_FRAME 0
23989
23990 /*
23991 @@ -1861,9 +2374,9 @@ end_repeat_nmi:
23992 * NMI itself takes a page fault, the page fault that was preempted
23993 * will read the information from the NMI page fault and not the
23994 * origin fault. Save it off and restore it if it changes.
23995 - * Use the r12 callee-saved register.
23996 + * Use the r13 callee-saved register.
23997 */
23998 - movq %cr2, %r12
23999 + movq %cr2, %r13
24000
24001 /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
24002 movq %rsp,%rdi
24003 @@ -1872,31 +2385,36 @@ end_repeat_nmi:
24004
24005 /* Did the NMI take a page fault? Restore cr2 if it did */
24006 movq %cr2, %rcx
24007 - cmpq %rcx, %r12
24008 + cmpq %rcx, %r13
24009 je 1f
24010 - movq %r12, %cr2
24011 + movq %r13, %cr2
24012 1:
24013
24014 - testl %ebx,%ebx /* swapgs needed? */
24015 + testl $1,%ebx /* swapgs needed? */
24016 jnz nmi_restore
24017 nmi_swapgs:
24018 SWAPGS_UNSAFE_STACK
24019 nmi_restore:
24020 + pax_exit_kernel_nmi
24021 /* Pop the extra iret frame at once */
24022 RESTORE_ALL 6*8
24023 + testb $3, 8(%rsp)
24024 + jnz 1f
24025 + pax_force_retaddr_bts
24026 +1:
24027
24028 /* Clear the NMI executing stack variable */
24029 movq $0, 5*8(%rsp)
24030 jmp irq_return
24031 CFI_ENDPROC
24032 -END(nmi)
24033 +ENDPROC(nmi)
24034
24035 ENTRY(ignore_sysret)
24036 CFI_STARTPROC
24037 mov $-ENOSYS,%eax
24038 sysret
24039 CFI_ENDPROC
24040 -END(ignore_sysret)
24041 +ENDPROC(ignore_sysret)
24042
24043 /*
24044 * End of kprobes section
24045 diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
24046 index 52819e8..b6d1dbd 100644
24047 --- a/arch/x86/kernel/ftrace.c
24048 +++ b/arch/x86/kernel/ftrace.c
24049 @@ -104,6 +104,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
24050 {
24051 unsigned char replaced[MCOUNT_INSN_SIZE];
24052
24053 + ip = ktla_ktva(ip);
24054 +
24055 /*
24056 * Note: Due to modules and __init, code can
24057 * disappear and change, we need to protect against faulting
24058 @@ -229,7 +231,7 @@ static int update_ftrace_func(unsigned long ip, void *new)
24059 unsigned char old[MCOUNT_INSN_SIZE];
24060 int ret;
24061
24062 - memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
24063 + memcpy(old, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE);
24064
24065 ftrace_update_func = ip;
24066 /* Make sure the breakpoints see the ftrace_update_func update */
24067 @@ -306,7 +308,7 @@ static int ftrace_write(unsigned long ip, const char *val, int size)
24068 * kernel identity mapping to modify code.
24069 */
24070 if (within(ip, (unsigned long)_text, (unsigned long)_etext))
24071 - ip = (unsigned long)__va(__pa_symbol(ip));
24072 + ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
24073
24074 if (probe_kernel_write((void *)ip, val, size))
24075 return -EPERM;
24076 @@ -319,7 +321,7 @@ static int add_break(unsigned long ip, const char *old)
24077 unsigned char replaced[MCOUNT_INSN_SIZE];
24078 unsigned char brk = BREAKPOINT_INSTRUCTION;
24079
24080 - if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
24081 + if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
24082 return -EFAULT;
24083
24084 /* Make sure it is what we expect it to be */
24085 diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
24086 index 068054f..c248bcd 100644
24087 --- a/arch/x86/kernel/head64.c
24088 +++ b/arch/x86/kernel/head64.c
24089 @@ -67,12 +67,12 @@ again:
24090 pgd = *pgd_p;
24091
24092 /*
24093 - * The use of __START_KERNEL_map rather than __PAGE_OFFSET here is
24094 - * critical -- __PAGE_OFFSET would point us back into the dynamic
24095 + * The use of __early_va rather than __va here is critical:
24096 + * __va would point us back into the dynamic
24097 * range and we might end up looping forever...
24098 */
24099 if (pgd)
24100 - pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24101 + pud_p = (pudval_t *)(__early_va(pgd & PTE_PFN_MASK));
24102 else {
24103 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24104 reset_early_page_tables();
24105 @@ -82,13 +82,13 @@ again:
24106 pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
24107 for (i = 0; i < PTRS_PER_PUD; i++)
24108 pud_p[i] = 0;
24109 - *pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24110 + *pgd_p = (pgdval_t)__pa(pud_p) + _KERNPG_TABLE;
24111 }
24112 pud_p += pud_index(address);
24113 pud = *pud_p;
24114
24115 if (pud)
24116 - pmd_p = (pmdval_t *)((pud & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24117 + pmd_p = (pmdval_t *)(__early_va(pud & PTE_PFN_MASK));
24118 else {
24119 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24120 reset_early_page_tables();
24121 @@ -98,7 +98,7 @@ again:
24122 pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++];
24123 for (i = 0; i < PTRS_PER_PMD; i++)
24124 pmd_p[i] = 0;
24125 - *pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24126 + *pud_p = (pudval_t)__pa(pmd_p) + _KERNPG_TABLE;
24127 }
24128 pmd = (physaddr & PMD_MASK) + early_pmd_flags;
24129 pmd_p[pmd_index(address)] = pmd;
24130 @@ -175,7 +175,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
24131 if (console_loglevel == 10)
24132 early_printk("Kernel alive\n");
24133
24134 - clear_page(init_level4_pgt);
24135 /* set init_level4_pgt kernel high mapping*/
24136 init_level4_pgt[511] = early_level4_pgt[511];
24137
24138 diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
24139 index f36bd42..56ee1534 100644
24140 --- a/arch/x86/kernel/head_32.S
24141 +++ b/arch/x86/kernel/head_32.S
24142 @@ -26,6 +26,12 @@
24143 /* Physical address */
24144 #define pa(X) ((X) - __PAGE_OFFSET)
24145
24146 +#ifdef CONFIG_PAX_KERNEXEC
24147 +#define ta(X) (X)
24148 +#else
24149 +#define ta(X) ((X) - __PAGE_OFFSET)
24150 +#endif
24151 +
24152 /*
24153 * References to members of the new_cpu_data structure.
24154 */
24155 @@ -55,11 +61,7 @@
24156 * and small than max_low_pfn, otherwise will waste some page table entries
24157 */
24158
24159 -#if PTRS_PER_PMD > 1
24160 -#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
24161 -#else
24162 -#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
24163 -#endif
24164 +#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
24165
24166 /* Number of possible pages in the lowmem region */
24167 LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
24168 @@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
24169 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24170
24171 /*
24172 + * Real beginning of normal "text" segment
24173 + */
24174 +ENTRY(stext)
24175 +ENTRY(_stext)
24176 +
24177 +/*
24178 * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
24179 * %esi points to the real-mode code as a 32-bit pointer.
24180 * CS and DS must be 4 GB flat segments, but we don't depend on
24181 @@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24182 * can.
24183 */
24184 __HEAD
24185 +
24186 +#ifdef CONFIG_PAX_KERNEXEC
24187 + jmp startup_32
24188 +/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
24189 +.fill PAGE_SIZE-5,1,0xcc
24190 +#endif
24191 +
24192 ENTRY(startup_32)
24193 movl pa(stack_start),%ecx
24194
24195 @@ -106,6 +121,59 @@ ENTRY(startup_32)
24196 2:
24197 leal -__PAGE_OFFSET(%ecx),%esp
24198
24199 +#ifdef CONFIG_SMP
24200 + movl $pa(cpu_gdt_table),%edi
24201 + movl $__per_cpu_load,%eax
24202 + movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
24203 + rorl $16,%eax
24204 + movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
24205 + movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
24206 + movl $__per_cpu_end - 1,%eax
24207 + subl $__per_cpu_start,%eax
24208 + movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
24209 +#endif
24210 +
24211 +#ifdef CONFIG_PAX_MEMORY_UDEREF
24212 + movl $NR_CPUS,%ecx
24213 + movl $pa(cpu_gdt_table),%edi
24214 +1:
24215 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
24216 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
24217 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
24218 + addl $PAGE_SIZE_asm,%edi
24219 + loop 1b
24220 +#endif
24221 +
24222 +#ifdef CONFIG_PAX_KERNEXEC
24223 + movl $pa(boot_gdt),%edi
24224 + movl $__LOAD_PHYSICAL_ADDR,%eax
24225 + movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
24226 + rorl $16,%eax
24227 + movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
24228 + movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
24229 + rorl $16,%eax
24230 +
24231 + ljmp $(__BOOT_CS),$1f
24232 +1:
24233 +
24234 + movl $NR_CPUS,%ecx
24235 + movl $pa(cpu_gdt_table),%edi
24236 + addl $__PAGE_OFFSET,%eax
24237 +1:
24238 + movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
24239 + movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
24240 + movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
24241 + movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
24242 + rorl $16,%eax
24243 + movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
24244 + movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
24245 + movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
24246 + movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
24247 + rorl $16,%eax
24248 + addl $PAGE_SIZE_asm,%edi
24249 + loop 1b
24250 +#endif
24251 +
24252 /*
24253 * Clear BSS first so that there are no surprises...
24254 */
24255 @@ -201,8 +269,11 @@ ENTRY(startup_32)
24256 movl %eax, pa(max_pfn_mapped)
24257
24258 /* Do early initialization of the fixmap area */
24259 - movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24260 - movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
24261 +#ifdef CONFIG_COMPAT_VDSO
24262 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
24263 +#else
24264 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
24265 +#endif
24266 #else /* Not PAE */
24267
24268 page_pde_offset = (__PAGE_OFFSET >> 20);
24269 @@ -232,8 +303,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24270 movl %eax, pa(max_pfn_mapped)
24271
24272 /* Do early initialization of the fixmap area */
24273 - movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24274 - movl %eax,pa(initial_page_table+0xffc)
24275 +#ifdef CONFIG_COMPAT_VDSO
24276 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
24277 +#else
24278 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
24279 +#endif
24280 #endif
24281
24282 #ifdef CONFIG_PARAVIRT
24283 @@ -247,9 +321,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24284 cmpl $num_subarch_entries, %eax
24285 jae bad_subarch
24286
24287 - movl pa(subarch_entries)(,%eax,4), %eax
24288 - subl $__PAGE_OFFSET, %eax
24289 - jmp *%eax
24290 + jmp *pa(subarch_entries)(,%eax,4)
24291
24292 bad_subarch:
24293 WEAK(lguest_entry)
24294 @@ -261,10 +333,10 @@ WEAK(xen_entry)
24295 __INITDATA
24296
24297 subarch_entries:
24298 - .long default_entry /* normal x86/PC */
24299 - .long lguest_entry /* lguest hypervisor */
24300 - .long xen_entry /* Xen hypervisor */
24301 - .long default_entry /* Moorestown MID */
24302 + .long ta(default_entry) /* normal x86/PC */
24303 + .long ta(lguest_entry) /* lguest hypervisor */
24304 + .long ta(xen_entry) /* Xen hypervisor */
24305 + .long ta(default_entry) /* Moorestown MID */
24306 num_subarch_entries = (. - subarch_entries) / 4
24307 .previous
24308 #else
24309 @@ -354,6 +426,7 @@ default_entry:
24310 movl pa(mmu_cr4_features),%eax
24311 movl %eax,%cr4
24312
24313 +#ifdef CONFIG_X86_PAE
24314 testb $X86_CR4_PAE, %al # check if PAE is enabled
24315 jz enable_paging
24316
24317 @@ -382,6 +455,9 @@ default_entry:
24318 /* Make changes effective */
24319 wrmsr
24320
24321 + btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
24322 +#endif
24323 +
24324 enable_paging:
24325
24326 /*
24327 @@ -449,14 +525,20 @@ is486:
24328 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
24329 movl %eax,%ss # after changing gdt.
24330
24331 - movl $(__USER_DS),%eax # DS/ES contains default USER segment
24332 +# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment
24333 movl %eax,%ds
24334 movl %eax,%es
24335
24336 movl $(__KERNEL_PERCPU), %eax
24337 movl %eax,%fs # set this cpu's percpu
24338
24339 +#ifdef CONFIG_CC_STACKPROTECTOR
24340 movl $(__KERNEL_STACK_CANARY),%eax
24341 +#elif defined(CONFIG_PAX_MEMORY_UDEREF)
24342 + movl $(__USER_DS),%eax
24343 +#else
24344 + xorl %eax,%eax
24345 +#endif
24346 movl %eax,%gs
24347
24348 xorl %eax,%eax # Clear LDT
24349 @@ -512,8 +594,11 @@ setup_once:
24350 * relocation. Manually set base address in stack canary
24351 * segment descriptor.
24352 */
24353 - movl $gdt_page,%eax
24354 + movl $cpu_gdt_table,%eax
24355 movl $stack_canary,%ecx
24356 +#ifdef CONFIG_SMP
24357 + addl $__per_cpu_load,%ecx
24358 +#endif
24359 movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
24360 shrl $16, %ecx
24361 movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
24362 @@ -548,7 +633,7 @@ ENTRY(early_idt_handler)
24363 cmpl $2,(%esp) # X86_TRAP_NMI
24364 je is_nmi # Ignore NMI
24365
24366 - cmpl $2,%ss:early_recursion_flag
24367 + cmpl $1,%ss:early_recursion_flag
24368 je hlt_loop
24369 incl %ss:early_recursion_flag
24370
24371 @@ -586,8 +671,8 @@ ENTRY(early_idt_handler)
24372 pushl (20+6*4)(%esp) /* trapno */
24373 pushl $fault_msg
24374 call printk
24375 -#endif
24376 call dump_stack
24377 +#endif
24378 hlt_loop:
24379 hlt
24380 jmp hlt_loop
24381 @@ -607,8 +692,11 @@ ENDPROC(early_idt_handler)
24382 /* This is the default interrupt "handler" :-) */
24383 ALIGN
24384 ignore_int:
24385 - cld
24386 #ifdef CONFIG_PRINTK
24387 + cmpl $2,%ss:early_recursion_flag
24388 + je hlt_loop
24389 + incl %ss:early_recursion_flag
24390 + cld
24391 pushl %eax
24392 pushl %ecx
24393 pushl %edx
24394 @@ -617,9 +705,6 @@ ignore_int:
24395 movl $(__KERNEL_DS),%eax
24396 movl %eax,%ds
24397 movl %eax,%es
24398 - cmpl $2,early_recursion_flag
24399 - je hlt_loop
24400 - incl early_recursion_flag
24401 pushl 16(%esp)
24402 pushl 24(%esp)
24403 pushl 32(%esp)
24404 @@ -653,29 +738,34 @@ ENTRY(setup_once_ref)
24405 /*
24406 * BSS section
24407 */
24408 -__PAGE_ALIGNED_BSS
24409 - .align PAGE_SIZE
24410 #ifdef CONFIG_X86_PAE
24411 +.section .initial_pg_pmd,"a",@progbits
24412 initial_pg_pmd:
24413 .fill 1024*KPMDS,4,0
24414 #else
24415 +.section .initial_page_table,"a",@progbits
24416 ENTRY(initial_page_table)
24417 .fill 1024,4,0
24418 #endif
24419 +.section .initial_pg_fixmap,"a",@progbits
24420 initial_pg_fixmap:
24421 .fill 1024,4,0
24422 +.section .empty_zero_page,"a",@progbits
24423 ENTRY(empty_zero_page)
24424 .fill 4096,1,0
24425 +.section .swapper_pg_dir,"a",@progbits
24426 ENTRY(swapper_pg_dir)
24427 +#ifdef CONFIG_X86_PAE
24428 + .fill 4,8,0
24429 +#else
24430 .fill 1024,4,0
24431 +#endif
24432
24433 /*
24434 * This starts the data section.
24435 */
24436 #ifdef CONFIG_X86_PAE
24437 -__PAGE_ALIGNED_DATA
24438 - /* Page-aligned for the benefit of paravirt? */
24439 - .align PAGE_SIZE
24440 +.section .initial_page_table,"a",@progbits
24441 ENTRY(initial_page_table)
24442 .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
24443 # if KPMDS == 3
24444 @@ -694,12 +784,20 @@ ENTRY(initial_page_table)
24445 # error "Kernel PMDs should be 1, 2 or 3"
24446 # endif
24447 .align PAGE_SIZE /* needs to be page-sized too */
24448 +
24449 +#ifdef CONFIG_PAX_PER_CPU_PGD
24450 +ENTRY(cpu_pgd)
24451 + .rept 2*NR_CPUS
24452 + .fill 4,8,0
24453 + .endr
24454 +#endif
24455 +
24456 #endif
24457
24458 .data
24459 .balign 4
24460 ENTRY(stack_start)
24461 - .long init_thread_union+THREAD_SIZE
24462 + .long init_thread_union+THREAD_SIZE-8
24463
24464 __INITRODATA
24465 int_msg:
24466 @@ -727,7 +825,7 @@ fault_msg:
24467 * segment size, and 32-bit linear address value:
24468 */
24469
24470 - .data
24471 +.section .rodata,"a",@progbits
24472 .globl boot_gdt_descr
24473 .globl idt_descr
24474
24475 @@ -736,7 +834,7 @@ fault_msg:
24476 .word 0 # 32 bit align gdt_desc.address
24477 boot_gdt_descr:
24478 .word __BOOT_DS+7
24479 - .long boot_gdt - __PAGE_OFFSET
24480 + .long pa(boot_gdt)
24481
24482 .word 0 # 32-bit align idt_desc.address
24483 idt_descr:
24484 @@ -747,7 +845,7 @@ idt_descr:
24485 .word 0 # 32 bit align gdt_desc.address
24486 ENTRY(early_gdt_descr)
24487 .word GDT_ENTRIES*8-1
24488 - .long gdt_page /* Overwritten for secondary CPUs */
24489 + .long cpu_gdt_table /* Overwritten for secondary CPUs */
24490
24491 /*
24492 * The boot_gdt must mirror the equivalent in setup.S and is
24493 @@ -756,5 +854,65 @@ ENTRY(early_gdt_descr)
24494 .align L1_CACHE_BYTES
24495 ENTRY(boot_gdt)
24496 .fill GDT_ENTRY_BOOT_CS,8,0
24497 - .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
24498 - .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
24499 + .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
24500 + .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
24501 +
24502 + .align PAGE_SIZE_asm
24503 +ENTRY(cpu_gdt_table)
24504 + .rept NR_CPUS
24505 + .quad 0x0000000000000000 /* NULL descriptor */
24506 + .quad 0x0000000000000000 /* 0x0b reserved */
24507 + .quad 0x0000000000000000 /* 0x13 reserved */
24508 + .quad 0x0000000000000000 /* 0x1b reserved */
24509 +
24510 +#ifdef CONFIG_PAX_KERNEXEC
24511 + .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */
24512 +#else
24513 + .quad 0x0000000000000000 /* 0x20 unused */
24514 +#endif
24515 +
24516 + .quad 0x0000000000000000 /* 0x28 unused */
24517 + .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
24518 + .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
24519 + .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
24520 + .quad 0x0000000000000000 /* 0x4b reserved */
24521 + .quad 0x0000000000000000 /* 0x53 reserved */
24522 + .quad 0x0000000000000000 /* 0x5b reserved */
24523 +
24524 + .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
24525 + .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
24526 + .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
24527 + .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
24528 +
24529 + .quad 0x0000000000000000 /* 0x80 TSS descriptor */
24530 + .quad 0x0000000000000000 /* 0x88 LDT descriptor */
24531 +
24532 + /*
24533 + * Segments used for calling PnP BIOS have byte granularity.
24534 + * The code segments and data segments have fixed 64k limits,
24535 + * the transfer segment sizes are set at run time.
24536 + */
24537 + .quad 0x00409b000000ffff /* 0x90 32-bit code */
24538 + .quad 0x00009b000000ffff /* 0x98 16-bit code */
24539 + .quad 0x000093000000ffff /* 0xa0 16-bit data */
24540 + .quad 0x0000930000000000 /* 0xa8 16-bit data */
24541 + .quad 0x0000930000000000 /* 0xb0 16-bit data */
24542 +
24543 + /*
24544 + * The APM segments have byte granularity and their bases
24545 + * are set at run time. All have 64k limits.
24546 + */
24547 + .quad 0x00409b000000ffff /* 0xb8 APM CS code */
24548 + .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
24549 + .quad 0x004093000000ffff /* 0xc8 APM DS data */
24550 +
24551 + .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */
24552 + .quad 0x0040930000000000 /* 0xd8 - PERCPU */
24553 + .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */
24554 + .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */
24555 + .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */
24556 + .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
24557 +
24558 + /* Be sure this is zeroed to avoid false validations in Xen */
24559 + .fill PAGE_SIZE_asm - GDT_SIZE,1,0
24560 + .endr
24561 diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
24562 index a468c0a..c7dec74 100644
24563 --- a/arch/x86/kernel/head_64.S
24564 +++ b/arch/x86/kernel/head_64.S
24565 @@ -20,6 +20,8 @@
24566 #include <asm/processor-flags.h>
24567 #include <asm/percpu.h>
24568 #include <asm/nops.h>
24569 +#include <asm/cpufeature.h>
24570 +#include <asm/alternative-asm.h>
24571
24572 #ifdef CONFIG_PARAVIRT
24573 #include <asm/asm-offsets.h>
24574 @@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
24575 L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
24576 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
24577 L3_START_KERNEL = pud_index(__START_KERNEL_map)
24578 +L4_VMALLOC_START = pgd_index(VMALLOC_START)
24579 +L3_VMALLOC_START = pud_index(VMALLOC_START)
24580 +L4_VMALLOC_END = pgd_index(VMALLOC_END)
24581 +L3_VMALLOC_END = pud_index(VMALLOC_END)
24582 +L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
24583 +L3_VMEMMAP_START = pud_index(VMEMMAP_START)
24584
24585 .text
24586 __HEAD
24587 @@ -89,11 +97,24 @@ startup_64:
24588 * Fixup the physical addresses in the page table
24589 */
24590 addq %rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
24591 + addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
24592 + addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
24593 + addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
24594 + addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
24595 + addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
24596
24597 - addq %rbp, level3_kernel_pgt + (510*8)(%rip)
24598 - addq %rbp, level3_kernel_pgt + (511*8)(%rip)
24599 + addq %rbp, level3_ident_pgt + (0*8)(%rip)
24600 +#ifndef CONFIG_XEN
24601 + addq %rbp, level3_ident_pgt + (1*8)(%rip)
24602 +#endif
24603 +
24604 + addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
24605 +
24606 + addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
24607 + addq %rbp, level3_kernel_pgt + ((L3_START_KERNEL+1)*8)(%rip)
24608
24609 addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
24610 + addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
24611
24612 /*
24613 * Set up the identity mapping for the switchover. These
24614 @@ -177,8 +198,8 @@ ENTRY(secondary_startup_64)
24615 movq $(init_level4_pgt - __START_KERNEL_map), %rax
24616 1:
24617
24618 - /* Enable PAE mode and PGE */
24619 - movl $(X86_CR4_PAE | X86_CR4_PGE), %ecx
24620 + /* Enable PAE mode and PSE/PGE */
24621 + movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
24622 movq %rcx, %cr4
24623
24624 /* Setup early boot stage 4 level pagetables. */
24625 @@ -199,10 +220,19 @@ ENTRY(secondary_startup_64)
24626 movl $MSR_EFER, %ecx
24627 rdmsr
24628 btsl $_EFER_SCE, %eax /* Enable System Call */
24629 - btl $20,%edi /* No Execute supported? */
24630 + btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */
24631 jnc 1f
24632 btsl $_EFER_NX, %eax
24633 btsq $_PAGE_BIT_NX,early_pmd_flags(%rip)
24634 +#ifndef CONFIG_EFI
24635 + btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_PAGE_OFFSET(%rip)
24636 +#endif
24637 + btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_START(%rip)
24638 + btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_END(%rip)
24639 + btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMEMMAP_START(%rip)
24640 + btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*506(%rip)
24641 + btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*507(%rip)
24642 + btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip)
24643 1: wrmsr /* Make changes effective */
24644
24645 /* Setup cr0 */
24646 @@ -282,6 +312,7 @@ ENTRY(secondary_startup_64)
24647 * REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
24648 * address given in m16:64.
24649 */
24650 + pax_set_fptr_mask
24651 movq initial_code(%rip),%rax
24652 pushq $0 # fake return address to stop unwinder
24653 pushq $__KERNEL_CS # set correct cs
24654 @@ -313,7 +344,7 @@ ENDPROC(start_cpu0)
24655 .quad INIT_PER_CPU_VAR(irq_stack_union)
24656
24657 GLOBAL(stack_start)
24658 - .quad init_thread_union+THREAD_SIZE-8
24659 + .quad init_thread_union+THREAD_SIZE-16
24660 .word 0
24661 __FINITDATA
24662
24663 @@ -391,7 +422,7 @@ ENTRY(early_idt_handler)
24664 call dump_stack
24665 #ifdef CONFIG_KALLSYMS
24666 leaq early_idt_ripmsg(%rip),%rdi
24667 - movq 40(%rsp),%rsi # %rip again
24668 + movq 88(%rsp),%rsi # %rip again
24669 call __print_symbol
24670 #endif
24671 #endif /* EARLY_PRINTK */
24672 @@ -420,6 +451,7 @@ ENDPROC(early_idt_handler)
24673 early_recursion_flag:
24674 .long 0
24675
24676 + .section .rodata,"a",@progbits
24677 #ifdef CONFIG_EARLY_PRINTK
24678 early_idt_msg:
24679 .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
24680 @@ -447,29 +479,52 @@ NEXT_PAGE(early_level4_pgt)
24681 NEXT_PAGE(early_dynamic_pgts)
24682 .fill 512*EARLY_DYNAMIC_PAGE_TABLES,8,0
24683
24684 - .data
24685 + .section .rodata,"a",@progbits
24686
24687 -#ifndef CONFIG_XEN
24688 NEXT_PAGE(init_level4_pgt)
24689 - .fill 512,8,0
24690 -#else
24691 -NEXT_PAGE(init_level4_pgt)
24692 - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24693 .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
24694 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24695 + .org init_level4_pgt + L4_VMALLOC_START*8, 0
24696 + .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
24697 + .org init_level4_pgt + L4_VMALLOC_END*8, 0
24698 + .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
24699 + .org init_level4_pgt + L4_VMEMMAP_START*8, 0
24700 + .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
24701 .org init_level4_pgt + L4_START_KERNEL*8, 0
24702 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
24703 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
24704
24705 +#ifdef CONFIG_PAX_PER_CPU_PGD
24706 +NEXT_PAGE(cpu_pgd)
24707 + .rept 2*NR_CPUS
24708 + .fill 512,8,0
24709 + .endr
24710 +#endif
24711 +
24712 NEXT_PAGE(level3_ident_pgt)
24713 .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24714 +#ifdef CONFIG_XEN
24715 .fill 511, 8, 0
24716 +#else
24717 + .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
24718 + .fill 510,8,0
24719 +#endif
24720 +
24721 +NEXT_PAGE(level3_vmalloc_start_pgt)
24722 + .fill 512,8,0
24723 +
24724 +NEXT_PAGE(level3_vmalloc_end_pgt)
24725 + .fill 512,8,0
24726 +
24727 +NEXT_PAGE(level3_vmemmap_pgt)
24728 + .fill L3_VMEMMAP_START,8,0
24729 + .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
24730 +
24731 NEXT_PAGE(level2_ident_pgt)
24732 - /* Since I easily can, map the first 1G.
24733 + /* Since I easily can, map the first 2G.
24734 * Don't set NX because code runs from these pages.
24735 */
24736 - PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
24737 -#endif
24738 + PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
24739
24740 NEXT_PAGE(level3_kernel_pgt)
24741 .fill L3_START_KERNEL,8,0
24742 @@ -477,6 +532,9 @@ NEXT_PAGE(level3_kernel_pgt)
24743 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
24744 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
24745
24746 +NEXT_PAGE(level2_vmemmap_pgt)
24747 + .fill 512,8,0
24748 +
24749 NEXT_PAGE(level2_kernel_pgt)
24750 /*
24751 * 512 MB kernel mapping. We spend a full page on this pagetable
24752 @@ -494,28 +552,64 @@ NEXT_PAGE(level2_kernel_pgt)
24753 NEXT_PAGE(level2_fixmap_pgt)
24754 .fill 506,8,0
24755 .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
24756 - /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
24757 - .fill 5,8,0
24758 + .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
24759 + /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
24760 + .fill 4,8,0
24761
24762 NEXT_PAGE(level1_fixmap_pgt)
24763 .fill 512,8,0
24764
24765 +NEXT_PAGE(level1_vsyscall_pgt)
24766 + .fill 512,8,0
24767 +
24768 #undef PMDS
24769
24770 - .data
24771 + .align PAGE_SIZE
24772 +ENTRY(cpu_gdt_table)
24773 + .rept NR_CPUS
24774 + .quad 0x0000000000000000 /* NULL descriptor */
24775 + .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
24776 + .quad 0x00af9b000000ffff /* __KERNEL_CS */
24777 + .quad 0x00cf93000000ffff /* __KERNEL_DS */
24778 + .quad 0x00cffb000000ffff /* __USER32_CS */
24779 + .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
24780 + .quad 0x00affb000000ffff /* __USER_CS */
24781 +
24782 +#ifdef CONFIG_PAX_KERNEXEC
24783 + .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */
24784 +#else
24785 + .quad 0x0 /* unused */
24786 +#endif
24787 +
24788 + .quad 0,0 /* TSS */
24789 + .quad 0,0 /* LDT */
24790 + .quad 0,0,0 /* three TLS descriptors */
24791 + .quad 0x0000f40000000000 /* node/CPU stored in limit */
24792 + /* asm/segment.h:GDT_ENTRIES must match this */
24793 +
24794 +#ifdef CONFIG_PAX_MEMORY_UDEREF
24795 + .quad 0x00cf93000000ffff /* __UDEREF_KERNEL_DS */
24796 +#else
24797 + .quad 0x0 /* unused */
24798 +#endif
24799 +
24800 + /* zero the remaining page */
24801 + .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
24802 + .endr
24803 +
24804 .align 16
24805 .globl early_gdt_descr
24806 early_gdt_descr:
24807 .word GDT_ENTRIES*8-1
24808 early_gdt_descr_base:
24809 - .quad INIT_PER_CPU_VAR(gdt_page)
24810 + .quad cpu_gdt_table
24811
24812 ENTRY(phys_base)
24813 /* This must match the first entry in level2_kernel_pgt */
24814 .quad 0x0000000000000000
24815
24816 #include "../../x86/xen/xen-head.S"
24817 -
24818 - __PAGE_ALIGNED_BSS
24819 +
24820 + .section .rodata,"a",@progbits
24821 NEXT_PAGE(empty_zero_page)
24822 .skip PAGE_SIZE
24823 diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
24824 index 05fd74f..c3548b1 100644
24825 --- a/arch/x86/kernel/i386_ksyms_32.c
24826 +++ b/arch/x86/kernel/i386_ksyms_32.c
24827 @@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
24828 EXPORT_SYMBOL(cmpxchg8b_emu);
24829 #endif
24830
24831 +EXPORT_SYMBOL_GPL(cpu_gdt_table);
24832 +
24833 /* Networking helper routines. */
24834 EXPORT_SYMBOL(csum_partial_copy_generic);
24835 +EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
24836 +EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
24837
24838 EXPORT_SYMBOL(__get_user_1);
24839 EXPORT_SYMBOL(__get_user_2);
24840 @@ -44,3 +48,11 @@ EXPORT_SYMBOL(___preempt_schedule);
24841 EXPORT_SYMBOL(___preempt_schedule_context);
24842 #endif
24843 #endif
24844 +
24845 +#ifdef CONFIG_PAX_KERNEXEC
24846 +EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
24847 +#endif
24848 +
24849 +#ifdef CONFIG_PAX_PER_CPU_PGD
24850 +EXPORT_SYMBOL(cpu_pgd);
24851 +#endif
24852 diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
24853 index d5dd808..b6432cf 100644
24854 --- a/arch/x86/kernel/i387.c
24855 +++ b/arch/x86/kernel/i387.c
24856 @@ -51,7 +51,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
24857 static inline bool interrupted_user_mode(void)
24858 {
24859 struct pt_regs *regs = get_irq_regs();
24860 - return regs && user_mode_vm(regs);
24861 + return regs && user_mode(regs);
24862 }
24863
24864 /*
24865 diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
24866 index 2e977b5..5f2c273 100644
24867 --- a/arch/x86/kernel/i8259.c
24868 +++ b/arch/x86/kernel/i8259.c
24869 @@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
24870 static void make_8259A_irq(unsigned int irq)
24871 {
24872 disable_irq_nosync(irq);
24873 - io_apic_irqs &= ~(1<<irq);
24874 + io_apic_irqs &= ~(1UL<<irq);
24875 irq_set_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
24876 i8259A_chip.name);
24877 enable_irq(irq);
24878 @@ -209,7 +209,7 @@ spurious_8259A_irq:
24879 "spurious 8259A interrupt: IRQ%d.\n", irq);
24880 spurious_irq_mask |= irqmask;
24881 }
24882 - atomic_inc(&irq_err_count);
24883 + atomic_inc_unchecked(&irq_err_count);
24884 /*
24885 * Theoretically we do not have to handle this IRQ,
24886 * but in Linux this does not cause problems and is
24887 @@ -332,14 +332,16 @@ static void init_8259A(int auto_eoi)
24888 /* (slave's support for AEOI in flat mode is to be investigated) */
24889 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
24890
24891 + pax_open_kernel();
24892 if (auto_eoi)
24893 /*
24894 * In AEOI mode we just have to mask the interrupt
24895 * when acking.
24896 */
24897 - i8259A_chip.irq_mask_ack = disable_8259A_irq;
24898 + *(void **)&i8259A_chip.irq_mask_ack = disable_8259A_irq;
24899 else
24900 - i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
24901 + *(void **)&i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
24902 + pax_close_kernel();
24903
24904 udelay(100); /* wait for 8259A to initialize */
24905
24906 diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
24907 index a979b5b..1d6db75 100644
24908 --- a/arch/x86/kernel/io_delay.c
24909 +++ b/arch/x86/kernel/io_delay.c
24910 @@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
24911 * Quirk table for systems that misbehave (lock up, etc.) if port
24912 * 0x80 is used:
24913 */
24914 -static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
24915 +static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
24916 {
24917 .callback = dmi_io_delay_0xed_port,
24918 .ident = "Compaq Presario V6000",
24919 diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
24920 index 4ddaf66..49d5c18 100644
24921 --- a/arch/x86/kernel/ioport.c
24922 +++ b/arch/x86/kernel/ioport.c
24923 @@ -6,6 +6,7 @@
24924 #include <linux/sched.h>
24925 #include <linux/kernel.h>
24926 #include <linux/capability.h>
24927 +#include <linux/security.h>
24928 #include <linux/errno.h>
24929 #include <linux/types.h>
24930 #include <linux/ioport.h>
24931 @@ -30,6 +31,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
24932 return -EINVAL;
24933 if (turn_on && !capable(CAP_SYS_RAWIO))
24934 return -EPERM;
24935 +#ifdef CONFIG_GRKERNSEC_IO
24936 + if (turn_on && grsec_disable_privio) {
24937 + gr_handle_ioperm();
24938 + return -ENODEV;
24939 + }
24940 +#endif
24941
24942 /*
24943 * If it's the first ioperm() call in this thread's lifetime, set the
24944 @@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
24945 * because the ->io_bitmap_max value must match the bitmap
24946 * contents:
24947 */
24948 - tss = &per_cpu(init_tss, get_cpu());
24949 + tss = init_tss + get_cpu();
24950
24951 if (turn_on)
24952 bitmap_clear(t->io_bitmap_ptr, from, num);
24953 @@ -105,6 +112,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
24954 if (level > old) {
24955 if (!capable(CAP_SYS_RAWIO))
24956 return -EPERM;
24957 +#ifdef CONFIG_GRKERNSEC_IO
24958 + if (grsec_disable_privio) {
24959 + gr_handle_iopl();
24960 + return -ENODEV;
24961 + }
24962 +#endif
24963 }
24964 regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
24965 t->iopl = level << 12;
24966 diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
24967 index 11ccfb0..ec1e46f 100644
24968 --- a/arch/x86/kernel/irq.c
24969 +++ b/arch/x86/kernel/irq.c
24970 @@ -22,7 +22,7 @@
24971 #define CREATE_TRACE_POINTS
24972 #include <asm/trace/irq_vectors.h>
24973
24974 -atomic_t irq_err_count;
24975 +atomic_unchecked_t irq_err_count;
24976
24977 /* Function pointer for generic interrupt vector handling */
24978 void (*x86_platform_ipi_callback)(void) = NULL;
24979 @@ -132,9 +132,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
24980 seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count);
24981 seq_printf(p, " Hypervisor callback interrupts\n");
24982 #endif
24983 - seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
24984 + seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
24985 #if defined(CONFIG_X86_IO_APIC)
24986 - seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
24987 + seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
24988 #endif
24989 return 0;
24990 }
24991 @@ -174,7 +174,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
24992
24993 u64 arch_irq_stat(void)
24994 {
24995 - u64 sum = atomic_read(&irq_err_count);
24996 + u64 sum = atomic_read_unchecked(&irq_err_count);
24997 return sum;
24998 }
24999
25000 diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
25001 index 63ce838..2ea3e06 100644
25002 --- a/arch/x86/kernel/irq_32.c
25003 +++ b/arch/x86/kernel/irq_32.c
25004 @@ -29,6 +29,8 @@ EXPORT_PER_CPU_SYMBOL(irq_regs);
25005
25006 #ifdef CONFIG_DEBUG_STACKOVERFLOW
25007
25008 +extern void gr_handle_kernel_exploit(void);
25009 +
25010 int sysctl_panic_on_stackoverflow __read_mostly;
25011
25012 /* Debugging check for stack overflow: is there less than 1KB free? */
25013 @@ -39,13 +41,14 @@ static int check_stack_overflow(void)
25014 __asm__ __volatile__("andl %%esp,%0" :
25015 "=r" (sp) : "0" (THREAD_SIZE - 1));
25016
25017 - return sp < (sizeof(struct thread_info) + STACK_WARN);
25018 + return sp < STACK_WARN;
25019 }
25020
25021 static void print_stack_overflow(void)
25022 {
25023 printk(KERN_WARNING "low stack detected by irq handler\n");
25024 dump_stack();
25025 + gr_handle_kernel_exploit();
25026 if (sysctl_panic_on_stackoverflow)
25027 panic("low stack detected by irq handler - check messages\n");
25028 }
25029 @@ -84,10 +87,9 @@ static inline void *current_stack(void)
25030 static inline int
25031 execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25032 {
25033 - struct irq_stack *curstk, *irqstk;
25034 + struct irq_stack *irqstk;
25035 u32 *isp, *prev_esp, arg1, arg2;
25036
25037 - curstk = (struct irq_stack *) current_stack();
25038 irqstk = __this_cpu_read(hardirq_stack);
25039
25040 /*
25041 @@ -96,15 +98,19 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25042 * handler) we can't do that and just have to keep using the
25043 * current stack (which is the irq stack already after all)
25044 */
25045 - if (unlikely(curstk == irqstk))
25046 + if (unlikely((void *)current_stack_pointer - (void *)irqstk < THREAD_SIZE))
25047 return 0;
25048
25049 - isp = (u32 *) ((char *)irqstk + sizeof(*irqstk));
25050 + isp = (u32 *) ((char *)irqstk + sizeof(*irqstk) - 8);
25051
25052 /* Save the next esp at the bottom of the stack */
25053 prev_esp = (u32 *)irqstk;
25054 *prev_esp = current_stack_pointer;
25055
25056 +#ifdef CONFIG_PAX_MEMORY_UDEREF
25057 + __set_fs(MAKE_MM_SEG(0));
25058 +#endif
25059 +
25060 if (unlikely(overflow))
25061 call_on_stack(print_stack_overflow, isp);
25062
25063 @@ -115,6 +121,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25064 : "0" (irq), "1" (desc), "2" (isp),
25065 "D" (desc->handle_irq)
25066 : "memory", "cc", "ecx");
25067 +
25068 +#ifdef CONFIG_PAX_MEMORY_UDEREF
25069 + __set_fs(current_thread_info()->addr_limit);
25070 +#endif
25071 +
25072 return 1;
25073 }
25074
25075 @@ -123,32 +134,18 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25076 */
25077 void irq_ctx_init(int cpu)
25078 {
25079 - struct irq_stack *irqstk;
25080 -
25081 if (per_cpu(hardirq_stack, cpu))
25082 return;
25083
25084 - irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25085 - THREADINFO_GFP,
25086 - THREAD_SIZE_ORDER));
25087 - per_cpu(hardirq_stack, cpu) = irqstk;
25088 -
25089 - irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25090 - THREADINFO_GFP,
25091 - THREAD_SIZE_ORDER));
25092 - per_cpu(softirq_stack, cpu) = irqstk;
25093 -
25094 - printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
25095 - cpu, per_cpu(hardirq_stack, cpu), per_cpu(softirq_stack, cpu));
25096 + per_cpu(hardirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25097 + per_cpu(softirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25098 }
25099
25100 void do_softirq_own_stack(void)
25101 {
25102 - struct thread_info *curstk;
25103 struct irq_stack *irqstk;
25104 u32 *isp, *prev_esp;
25105
25106 - curstk = current_stack();
25107 irqstk = __this_cpu_read(softirq_stack);
25108
25109 /* build the stack frame on the softirq stack */
25110 @@ -158,7 +155,16 @@ void do_softirq_own_stack(void)
25111 prev_esp = (u32 *)irqstk;
25112 *prev_esp = current_stack_pointer;
25113
25114 +#ifdef CONFIG_PAX_MEMORY_UDEREF
25115 + __set_fs(MAKE_MM_SEG(0));
25116 +#endif
25117 +
25118 call_on_stack(__do_softirq, isp);
25119 +
25120 +#ifdef CONFIG_PAX_MEMORY_UDEREF
25121 + __set_fs(current_thread_info()->addr_limit);
25122 +#endif
25123 +
25124 }
25125
25126 bool handle_irq(unsigned irq, struct pt_regs *regs)
25127 @@ -172,7 +178,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
25128 if (unlikely(!desc))
25129 return false;
25130
25131 - if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25132 + if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25133 if (unlikely(overflow))
25134 print_stack_overflow();
25135 desc->handle_irq(irq, desc);
25136 diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
25137 index 4d1c746..55a22d6 100644
25138 --- a/arch/x86/kernel/irq_64.c
25139 +++ b/arch/x86/kernel/irq_64.c
25140 @@ -26,6 +26,8 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
25141 DEFINE_PER_CPU(struct pt_regs *, irq_regs);
25142 EXPORT_PER_CPU_SYMBOL(irq_regs);
25143
25144 +extern void gr_handle_kernel_exploit(void);
25145 +
25146 int sysctl_panic_on_stackoverflow;
25147
25148 /*
25149 @@ -44,7 +46,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25150 u64 estack_top, estack_bottom;
25151 u64 curbase = (u64)task_stack_page(current);
25152
25153 - if (user_mode_vm(regs))
25154 + if (user_mode(regs))
25155 return;
25156
25157 if (regs->sp >= curbase + sizeof(struct thread_info) +
25158 @@ -69,6 +71,8 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25159 irq_stack_top, irq_stack_bottom,
25160 estack_top, estack_bottom);
25161
25162 + gr_handle_kernel_exploit();
25163 +
25164 if (sysctl_panic_on_stackoverflow)
25165 panic("low stack detected by irq handler - check messages\n");
25166 #endif
25167 diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
25168 index 26d5a55..a01160a 100644
25169 --- a/arch/x86/kernel/jump_label.c
25170 +++ b/arch/x86/kernel/jump_label.c
25171 @@ -51,7 +51,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25172 * Jump label is enabled for the first time.
25173 * So we expect a default_nop...
25174 */
25175 - if (unlikely(memcmp((void *)entry->code, default_nop, 5)
25176 + if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5)
25177 != 0))
25178 bug_at((void *)entry->code, __LINE__);
25179 } else {
25180 @@ -59,7 +59,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25181 * ...otherwise expect an ideal_nop. Otherwise
25182 * something went horribly wrong.
25183 */
25184 - if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
25185 + if (unlikely(memcmp((void *)ktla_ktva(entry->code), ideal_nop, 5)
25186 != 0))
25187 bug_at((void *)entry->code, __LINE__);
25188 }
25189 @@ -75,13 +75,13 @@ static void __jump_label_transform(struct jump_entry *entry,
25190 * are converting the default nop to the ideal nop.
25191 */
25192 if (init) {
25193 - if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
25194 + if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5) != 0))
25195 bug_at((void *)entry->code, __LINE__);
25196 } else {
25197 code.jump = 0xe9;
25198 code.offset = entry->target -
25199 (entry->code + JUMP_LABEL_NOP_SIZE);
25200 - if (unlikely(memcmp((void *)entry->code, &code, 5) != 0))
25201 + if (unlikely(memcmp((void *)ktla_ktva(entry->code), &code, 5) != 0))
25202 bug_at((void *)entry->code, __LINE__);
25203 }
25204 memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE);
25205 diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
25206 index 7ec1d5f..5a7d130 100644
25207 --- a/arch/x86/kernel/kgdb.c
25208 +++ b/arch/x86/kernel/kgdb.c
25209 @@ -126,11 +126,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
25210 #ifdef CONFIG_X86_32
25211 switch (regno) {
25212 case GDB_SS:
25213 - if (!user_mode_vm(regs))
25214 + if (!user_mode(regs))
25215 *(unsigned long *)mem = __KERNEL_DS;
25216 break;
25217 case GDB_SP:
25218 - if (!user_mode_vm(regs))
25219 + if (!user_mode(regs))
25220 *(unsigned long *)mem = kernel_stack_pointer(regs);
25221 break;
25222 case GDB_GS:
25223 @@ -228,7 +228,10 @@ static void kgdb_correct_hw_break(void)
25224 bp->attr.bp_addr = breakinfo[breakno].addr;
25225 bp->attr.bp_len = breakinfo[breakno].len;
25226 bp->attr.bp_type = breakinfo[breakno].type;
25227 - info->address = breakinfo[breakno].addr;
25228 + if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
25229 + info->address = ktla_ktva(breakinfo[breakno].addr);
25230 + else
25231 + info->address = breakinfo[breakno].addr;
25232 info->len = breakinfo[breakno].len;
25233 info->type = breakinfo[breakno].type;
25234 val = arch_install_hw_breakpoint(bp);
25235 @@ -475,12 +478,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
25236 case 'k':
25237 /* clear the trace bit */
25238 linux_regs->flags &= ~X86_EFLAGS_TF;
25239 - atomic_set(&kgdb_cpu_doing_single_step, -1);
25240 + atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
25241
25242 /* set the trace bit if we're stepping */
25243 if (remcomInBuffer[0] == 's') {
25244 linux_regs->flags |= X86_EFLAGS_TF;
25245 - atomic_set(&kgdb_cpu_doing_single_step,
25246 + atomic_set_unchecked(&kgdb_cpu_doing_single_step,
25247 raw_smp_processor_id());
25248 }
25249
25250 @@ -545,7 +548,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
25251
25252 switch (cmd) {
25253 case DIE_DEBUG:
25254 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
25255 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
25256 if (user_mode(regs))
25257 return single_step_cont(regs, args);
25258 break;
25259 @@ -750,11 +753,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25260 #endif /* CONFIG_DEBUG_RODATA */
25261
25262 bpt->type = BP_BREAKPOINT;
25263 - err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
25264 + err = probe_kernel_read(bpt->saved_instr, ktla_ktva((char *)bpt->bpt_addr),
25265 BREAK_INSTR_SIZE);
25266 if (err)
25267 return err;
25268 - err = probe_kernel_write((char *)bpt->bpt_addr,
25269 + err = probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25270 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
25271 #ifdef CONFIG_DEBUG_RODATA
25272 if (!err)
25273 @@ -767,7 +770,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25274 return -EBUSY;
25275 text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
25276 BREAK_INSTR_SIZE);
25277 - err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25278 + err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25279 if (err)
25280 return err;
25281 if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
25282 @@ -792,13 +795,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
25283 if (mutex_is_locked(&text_mutex))
25284 goto knl_write;
25285 text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
25286 - err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25287 + err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25288 if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
25289 goto knl_write;
25290 return err;
25291 knl_write:
25292 #endif /* CONFIG_DEBUG_RODATA */
25293 - return probe_kernel_write((char *)bpt->bpt_addr,
25294 + return probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25295 (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
25296 }
25297
25298 diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
25299 index 61b17dc..784bfe9 100644
25300 --- a/arch/x86/kernel/kprobes/core.c
25301 +++ b/arch/x86/kernel/kprobes/core.c
25302 @@ -119,9 +119,12 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
25303 s32 raddr;
25304 } __packed *insn;
25305
25306 - insn = (struct __arch_relative_insn *)from;
25307 + insn = (struct __arch_relative_insn *)ktla_ktva(from);
25308 +
25309 + pax_open_kernel();
25310 insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
25311 insn->op = op;
25312 + pax_close_kernel();
25313 }
25314
25315 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
25316 @@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes)
25317 kprobe_opcode_t opcode;
25318 kprobe_opcode_t *orig_opcodes = opcodes;
25319
25320 - if (search_exception_tables((unsigned long)opcodes))
25321 + if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
25322 return 0; /* Page fault may occur on this address. */
25323
25324 retry:
25325 @@ -238,9 +241,9 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
25326 * for the first byte, we can recover the original instruction
25327 * from it and kp->opcode.
25328 */
25329 - memcpy(buf, kp->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25330 + memcpy(buf, ktla_ktva(kp->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25331 buf[0] = kp->opcode;
25332 - return (unsigned long)buf;
25333 + return ktva_ktla((unsigned long)buf);
25334 }
25335
25336 /*
25337 @@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
25338 /* Another subsystem puts a breakpoint, failed to recover */
25339 if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
25340 return 0;
25341 + pax_open_kernel();
25342 memcpy(dest, insn.kaddr, insn.length);
25343 + pax_close_kernel();
25344
25345 #ifdef CONFIG_X86_64
25346 if (insn_rip_relative(&insn)) {
25347 @@ -359,7 +364,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
25348 return 0;
25349 }
25350 disp = (u8 *) dest + insn_offset_displacement(&insn);
25351 + pax_open_kernel();
25352 *(s32 *) disp = (s32) newdisp;
25353 + pax_close_kernel();
25354 }
25355 #endif
25356 return insn.length;
25357 @@ -498,7 +505,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
25358 * nor set current_kprobe, because it doesn't use single
25359 * stepping.
25360 */
25361 - regs->ip = (unsigned long)p->ainsn.insn;
25362 + regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25363 preempt_enable_no_resched();
25364 return;
25365 }
25366 @@ -515,9 +522,9 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
25367 regs->flags &= ~X86_EFLAGS_IF;
25368 /* single step inline if the instruction is an int3 */
25369 if (p->opcode == BREAKPOINT_INSTRUCTION)
25370 - regs->ip = (unsigned long)p->addr;
25371 + regs->ip = ktla_ktva((unsigned long)p->addr);
25372 else
25373 - regs->ip = (unsigned long)p->ainsn.insn;
25374 + regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25375 }
25376
25377 /*
25378 @@ -596,7 +603,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
25379 setup_singlestep(p, regs, kcb, 0);
25380 return 1;
25381 }
25382 - } else if (*addr != BREAKPOINT_INSTRUCTION) {
25383 + } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
25384 /*
25385 * The breakpoint instruction was removed right
25386 * after we hit it. Another cpu has removed
25387 @@ -642,6 +649,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void)
25388 " movq %rax, 152(%rsp)\n"
25389 RESTORE_REGS_STRING
25390 " popfq\n"
25391 +#ifdef KERNEXEC_PLUGIN
25392 + " btsq $63,(%rsp)\n"
25393 +#endif
25394 #else
25395 " pushf\n"
25396 SAVE_REGS_STRING
25397 @@ -779,7 +789,7 @@ static void __kprobes
25398 resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
25399 {
25400 unsigned long *tos = stack_addr(regs);
25401 - unsigned long copy_ip = (unsigned long)p->ainsn.insn;
25402 + unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
25403 unsigned long orig_ip = (unsigned long)p->addr;
25404 kprobe_opcode_t *insn = p->ainsn.insn;
25405
25406 @@ -959,7 +969,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d
25407 struct die_args *args = data;
25408 int ret = NOTIFY_DONE;
25409
25410 - if (args->regs && user_mode_vm(args->regs))
25411 + if (args->regs && user_mode(args->regs))
25412 return ret;
25413
25414 switch (val) {
25415 diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
25416 index 898160b..758cde8 100644
25417 --- a/arch/x86/kernel/kprobes/opt.c
25418 +++ b/arch/x86/kernel/kprobes/opt.c
25419 @@ -79,6 +79,7 @@ found:
25420 /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
25421 static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
25422 {
25423 + pax_open_kernel();
25424 #ifdef CONFIG_X86_64
25425 *addr++ = 0x48;
25426 *addr++ = 0xbf;
25427 @@ -86,6 +87,7 @@ static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long v
25428 *addr++ = 0xb8;
25429 #endif
25430 *(unsigned long *)addr = val;
25431 + pax_close_kernel();
25432 }
25433
25434 asm (
25435 @@ -335,7 +337,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
25436 * Verify if the address gap is in 2GB range, because this uses
25437 * a relative jump.
25438 */
25439 - rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
25440 + rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
25441 if (abs(rel) > 0x7fffffff)
25442 return -ERANGE;
25443
25444 @@ -350,16 +352,18 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
25445 op->optinsn.size = ret;
25446
25447 /* Copy arch-dep-instance from template */
25448 - memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
25449 + pax_open_kernel();
25450 + memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
25451 + pax_close_kernel();
25452
25453 /* Set probe information */
25454 synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
25455
25456 /* Set probe function call */
25457 - synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
25458 + synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
25459
25460 /* Set returning jmp instruction at the tail of out-of-line buffer */
25461 - synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
25462 + synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
25463 (u8 *)op->kp.addr + op->optinsn.size);
25464
25465 flush_icache_range((unsigned long) buf,
25466 @@ -384,7 +388,7 @@ void __kprobes arch_optimize_kprobes(struct list_head *oplist)
25467 WARN_ON(kprobe_disabled(&op->kp));
25468
25469 /* Backup instructions which will be replaced by jump address */
25470 - memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
25471 + memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
25472 RELATIVE_ADDR_SIZE);
25473
25474 insn_buf[0] = RELATIVEJUMP_OPCODE;
25475 @@ -433,7 +437,7 @@ setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
25476 /* This kprobe is really able to run optimized path. */
25477 op = container_of(p, struct optimized_kprobe, kp);
25478 /* Detour through copied instructions */
25479 - regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
25480 + regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
25481 if (!reenter)
25482 reset_current_kprobe();
25483 preempt_enable_no_resched();
25484 diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
25485 index c2bedae..25e7ab60 100644
25486 --- a/arch/x86/kernel/ksysfs.c
25487 +++ b/arch/x86/kernel/ksysfs.c
25488 @@ -184,7 +184,7 @@ out:
25489
25490 static struct kobj_attribute type_attr = __ATTR_RO(type);
25491
25492 -static struct bin_attribute data_attr = {
25493 +static bin_attribute_no_const data_attr __read_only = {
25494 .attr = {
25495 .name = "data",
25496 .mode = S_IRUGO,
25497 diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
25498 index dcbbaa1..81ae763 100644
25499 --- a/arch/x86/kernel/ldt.c
25500 +++ b/arch/x86/kernel/ldt.c
25501 @@ -68,13 +68,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
25502 if (reload) {
25503 #ifdef CONFIG_SMP
25504 preempt_disable();
25505 - load_LDT(pc);
25506 + load_LDT_nolock(pc);
25507 if (!cpumask_equal(mm_cpumask(current->mm),
25508 cpumask_of(smp_processor_id())))
25509 smp_call_function(flush_ldt, current->mm, 1);
25510 preempt_enable();
25511 #else
25512 - load_LDT(pc);
25513 + load_LDT_nolock(pc);
25514 #endif
25515 }
25516 if (oldsize) {
25517 @@ -96,7 +96,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
25518 return err;
25519
25520 for (i = 0; i < old->size; i++)
25521 - write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
25522 + write_ldt_entry(new->ldt, i, old->ldt + i);
25523 return 0;
25524 }
25525
25526 @@ -117,6 +117,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
25527 retval = copy_ldt(&mm->context, &old_mm->context);
25528 mutex_unlock(&old_mm->context.lock);
25529 }
25530 +
25531 + if (tsk == current) {
25532 + mm->context.vdso = 0;
25533 +
25534 +#ifdef CONFIG_X86_32
25535 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
25536 + mm->context.user_cs_base = 0UL;
25537 + mm->context.user_cs_limit = ~0UL;
25538 +
25539 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
25540 + cpus_clear(mm->context.cpu_user_cs_mask);
25541 +#endif
25542 +
25543 +#endif
25544 +#endif
25545 +
25546 + }
25547 +
25548 return retval;
25549 }
25550
25551 @@ -231,6 +249,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
25552 }
25553 }
25554
25555 +#ifdef CONFIG_PAX_SEGMEXEC
25556 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
25557 + error = -EINVAL;
25558 + goto out_unlock;
25559 + }
25560 +#endif
25561 +
25562 /*
25563 * On x86-64 we do not support 16-bit segments due to
25564 * IRET leaking the high bits of the kernel stack address.
25565 diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
25566 index 1667b1d..16492c5 100644
25567 --- a/arch/x86/kernel/machine_kexec_32.c
25568 +++ b/arch/x86/kernel/machine_kexec_32.c
25569 @@ -25,7 +25,7 @@
25570 #include <asm/cacheflush.h>
25571 #include <asm/debugreg.h>
25572
25573 -static void set_idt(void *newidt, __u16 limit)
25574 +static void set_idt(struct desc_struct *newidt, __u16 limit)
25575 {
25576 struct desc_ptr curidt;
25577
25578 @@ -37,7 +37,7 @@ static void set_idt(void *newidt, __u16 limit)
25579 }
25580
25581
25582 -static void set_gdt(void *newgdt, __u16 limit)
25583 +static void set_gdt(struct desc_struct *newgdt, __u16 limit)
25584 {
25585 struct desc_ptr curgdt;
25586
25587 @@ -215,7 +215,7 @@ void machine_kexec(struct kimage *image)
25588 }
25589
25590 control_page = page_address(image->control_code_page);
25591 - memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
25592 + memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
25593
25594 relocate_kernel_ptr = control_page;
25595 page_list[PA_CONTROL_PAGE] = __pa(control_page);
25596 diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
25597 index e69f988..da078ea 100644
25598 --- a/arch/x86/kernel/module.c
25599 +++ b/arch/x86/kernel/module.c
25600 @@ -81,17 +81,62 @@ static unsigned long int get_module_load_offset(void)
25601 }
25602 #endif
25603
25604 -void *module_alloc(unsigned long size)
25605 +static inline void *__module_alloc(unsigned long size, pgprot_t prot)
25606 {
25607 - if (PAGE_ALIGN(size) > MODULES_LEN)
25608 + if (!size || PAGE_ALIGN(size) > MODULES_LEN)
25609 return NULL;
25610 return __vmalloc_node_range(size, 1,
25611 MODULES_VADDR + get_module_load_offset(),
25612 - MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
25613 - PAGE_KERNEL_EXEC, NUMA_NO_NODE,
25614 + MODULES_END, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
25615 + prot, NUMA_NO_NODE,
25616 __builtin_return_address(0));
25617 }
25618
25619 +void *module_alloc(unsigned long size)
25620 +{
25621 +
25622 +#ifdef CONFIG_PAX_KERNEXEC
25623 + return __module_alloc(size, PAGE_KERNEL);
25624 +#else
25625 + return __module_alloc(size, PAGE_KERNEL_EXEC);
25626 +#endif
25627 +
25628 +}
25629 +
25630 +#ifdef CONFIG_PAX_KERNEXEC
25631 +#ifdef CONFIG_X86_32
25632 +void *module_alloc_exec(unsigned long size)
25633 +{
25634 + struct vm_struct *area;
25635 +
25636 + if (size == 0)
25637 + return NULL;
25638 +
25639 + area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
25640 +return area ? area->addr : NULL;
25641 +}
25642 +EXPORT_SYMBOL(module_alloc_exec);
25643 +
25644 +void module_free_exec(struct module *mod, void *module_region)
25645 +{
25646 + vunmap(module_region);
25647 +}
25648 +EXPORT_SYMBOL(module_free_exec);
25649 +#else
25650 +void module_free_exec(struct module *mod, void *module_region)
25651 +{
25652 + module_free(mod, module_region);
25653 +}
25654 +EXPORT_SYMBOL(module_free_exec);
25655 +
25656 +void *module_alloc_exec(unsigned long size)
25657 +{
25658 + return __module_alloc(size, PAGE_KERNEL_RX);
25659 +}
25660 +EXPORT_SYMBOL(module_alloc_exec);
25661 +#endif
25662 +#endif
25663 +
25664 #ifdef CONFIG_X86_32
25665 int apply_relocate(Elf32_Shdr *sechdrs,
25666 const char *strtab,
25667 @@ -102,14 +147,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
25668 unsigned int i;
25669 Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
25670 Elf32_Sym *sym;
25671 - uint32_t *location;
25672 + uint32_t *plocation, location;
25673
25674 DEBUGP("Applying relocate section %u to %u\n",
25675 relsec, sechdrs[relsec].sh_info);
25676 for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
25677 /* This is where to make the change */
25678 - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
25679 - + rel[i].r_offset;
25680 + plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
25681 + location = (uint32_t)plocation;
25682 + if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
25683 + plocation = ktla_ktva((void *)plocation);
25684 /* This is the symbol it is referring to. Note that all
25685 undefined symbols have been resolved. */
25686 sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
25687 @@ -118,11 +165,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
25688 switch (ELF32_R_TYPE(rel[i].r_info)) {
25689 case R_386_32:
25690 /* We add the value into the location given */
25691 - *location += sym->st_value;
25692 + pax_open_kernel();
25693 + *plocation += sym->st_value;
25694 + pax_close_kernel();
25695 break;
25696 case R_386_PC32:
25697 /* Add the value, subtract its position */
25698 - *location += sym->st_value - (uint32_t)location;
25699 + pax_open_kernel();
25700 + *plocation += sym->st_value - location;
25701 + pax_close_kernel();
25702 break;
25703 default:
25704 pr_err("%s: Unknown relocation: %u\n",
25705 @@ -167,21 +218,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
25706 case R_X86_64_NONE:
25707 break;
25708 case R_X86_64_64:
25709 + pax_open_kernel();
25710 *(u64 *)loc = val;
25711 + pax_close_kernel();
25712 break;
25713 case R_X86_64_32:
25714 + pax_open_kernel();
25715 *(u32 *)loc = val;
25716 + pax_close_kernel();
25717 if (val != *(u32 *)loc)
25718 goto overflow;
25719 break;
25720 case R_X86_64_32S:
25721 + pax_open_kernel();
25722 *(s32 *)loc = val;
25723 + pax_close_kernel();
25724 if ((s64)val != *(s32 *)loc)
25725 goto overflow;
25726 break;
25727 case R_X86_64_PC32:
25728 val -= (u64)loc;
25729 + pax_open_kernel();
25730 *(u32 *)loc = val;
25731 + pax_close_kernel();
25732 +
25733 #if 0
25734 if ((s64)val != *(s32 *)loc)
25735 goto overflow;
25736 diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
25737 index c9603ac..9f88728 100644
25738 --- a/arch/x86/kernel/msr.c
25739 +++ b/arch/x86/kernel/msr.c
25740 @@ -37,6 +37,7 @@
25741 #include <linux/notifier.h>
25742 #include <linux/uaccess.h>
25743 #include <linux/gfp.h>
25744 +#include <linux/grsecurity.h>
25745
25746 #include <asm/processor.h>
25747 #include <asm/msr.h>
25748 @@ -103,6 +104,11 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
25749 int err = 0;
25750 ssize_t bytes = 0;
25751
25752 +#ifdef CONFIG_GRKERNSEC_KMEM
25753 + gr_handle_msr_write();
25754 + return -EPERM;
25755 +#endif
25756 +
25757 if (count % 8)
25758 return -EINVAL; /* Invalid chunk size */
25759
25760 @@ -150,6 +156,10 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
25761 err = -EBADF;
25762 break;
25763 }
25764 +#ifdef CONFIG_GRKERNSEC_KMEM
25765 + gr_handle_msr_write();
25766 + return -EPERM;
25767 +#endif
25768 if (copy_from_user(&regs, uregs, sizeof regs)) {
25769 err = -EFAULT;
25770 break;
25771 @@ -233,7 +243,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
25772 return notifier_from_errno(err);
25773 }
25774
25775 -static struct notifier_block __refdata msr_class_cpu_notifier = {
25776 +static struct notifier_block msr_class_cpu_notifier = {
25777 .notifier_call = msr_class_cpu_callback,
25778 };
25779
25780 diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
25781 index b4872b9..5bf0684 100644
25782 --- a/arch/x86/kernel/nmi.c
25783 +++ b/arch/x86/kernel/nmi.c
25784 @@ -98,16 +98,16 @@ fs_initcall(nmi_warning_debugfs);
25785
25786 static void nmi_max_handler(struct irq_work *w)
25787 {
25788 - struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
25789 + struct nmiwork *n = container_of(w, struct nmiwork, irq_work);
25790 int remainder_ns, decimal_msecs;
25791 - u64 whole_msecs = ACCESS_ONCE(a->max_duration);
25792 + u64 whole_msecs = ACCESS_ONCE(n->max_duration);
25793
25794 remainder_ns = do_div(whole_msecs, (1000 * 1000));
25795 decimal_msecs = remainder_ns / 1000;
25796
25797 printk_ratelimited(KERN_INFO
25798 "INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
25799 - a->handler, whole_msecs, decimal_msecs);
25800 + n->action->handler, whole_msecs, decimal_msecs);
25801 }
25802
25803 static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
25804 @@ -134,11 +134,11 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
25805 delta = sched_clock() - delta;
25806 trace_nmi_handler(a->handler, (int)delta, thishandled);
25807
25808 - if (delta < nmi_longest_ns || delta < a->max_duration)
25809 + if (delta < nmi_longest_ns || delta < a->work->max_duration)
25810 continue;
25811
25812 - a->max_duration = delta;
25813 - irq_work_queue(&a->irq_work);
25814 + a->work->max_duration = delta;
25815 + irq_work_queue(&a->work->irq_work);
25816 }
25817
25818 rcu_read_unlock();
25819 @@ -147,7 +147,7 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
25820 return handled;
25821 }
25822
25823 -int __register_nmi_handler(unsigned int type, struct nmiaction *action)
25824 +int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
25825 {
25826 struct nmi_desc *desc = nmi_to_desc(type);
25827 unsigned long flags;
25828 @@ -155,7 +155,8 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
25829 if (!action->handler)
25830 return -EINVAL;
25831
25832 - init_irq_work(&action->irq_work, nmi_max_handler);
25833 + action->work->action = action;
25834 + init_irq_work(&action->work->irq_work, nmi_max_handler);
25835
25836 spin_lock_irqsave(&desc->lock, flags);
25837
25838 @@ -173,9 +174,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
25839 * event confuses some handlers (kdump uses this flag)
25840 */
25841 if (action->flags & NMI_FLAG_FIRST)
25842 - list_add_rcu(&action->list, &desc->head);
25843 + pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
25844 else
25845 - list_add_tail_rcu(&action->list, &desc->head);
25846 + pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
25847
25848 spin_unlock_irqrestore(&desc->lock, flags);
25849 return 0;
25850 @@ -198,7 +199,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
25851 if (!strcmp(n->name, name)) {
25852 WARN(in_nmi(),
25853 "Trying to free NMI (%s) from NMI context!\n", n->name);
25854 - list_del_rcu(&n->list);
25855 + pax_list_del_rcu((struct list_head *)&n->list);
25856 break;
25857 }
25858 }
25859 @@ -523,6 +524,17 @@ static inline void nmi_nesting_postprocess(void)
25860 dotraplinkage notrace __kprobes void
25861 do_nmi(struct pt_regs *regs, long error_code)
25862 {
25863 +
25864 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
25865 + if (!user_mode(regs)) {
25866 + unsigned long cs = regs->cs & 0xFFFF;
25867 + unsigned long ip = ktva_ktla(regs->ip);
25868 +
25869 + if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
25870 + regs->ip = ip;
25871 + }
25872 +#endif
25873 +
25874 nmi_nesting_preprocess(regs);
25875
25876 nmi_enter();
25877 diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
25878 index 6d9582e..f746287 100644
25879 --- a/arch/x86/kernel/nmi_selftest.c
25880 +++ b/arch/x86/kernel/nmi_selftest.c
25881 @@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
25882 {
25883 /* trap all the unknown NMIs we may generate */
25884 register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
25885 - __initdata);
25886 + __initconst);
25887 }
25888
25889 static void __init cleanup_nmi_testsuite(void)
25890 @@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
25891 unsigned long timeout;
25892
25893 if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
25894 - NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
25895 + NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
25896 nmi_fail = FAILURE;
25897 return;
25898 }
25899 diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
25900 index bbb6c73..24a58ef 100644
25901 --- a/arch/x86/kernel/paravirt-spinlocks.c
25902 +++ b/arch/x86/kernel/paravirt-spinlocks.c
25903 @@ -8,7 +8,7 @@
25904
25905 #include <asm/paravirt.h>
25906
25907 -struct pv_lock_ops pv_lock_ops = {
25908 +struct pv_lock_ops pv_lock_ops __read_only = {
25909 #ifdef CONFIG_SMP
25910 .lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
25911 .unlock_kick = paravirt_nop,
25912 diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
25913 index 1b10af8..45bfbec 100644
25914 --- a/arch/x86/kernel/paravirt.c
25915 +++ b/arch/x86/kernel/paravirt.c
25916 @@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x)
25917 {
25918 return x;
25919 }
25920 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
25921 +PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
25922 +#endif
25923
25924 void __init default_banner(void)
25925 {
25926 @@ -141,16 +144,20 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
25927
25928 if (opfunc == NULL)
25929 /* If there's no function, patch it with a ud2a (BUG) */
25930 - ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
25931 - else if (opfunc == _paravirt_nop)
25932 + ret = paravirt_patch_insns(insnbuf, len, ktva_ktla(ud2a), ud2a+sizeof(ud2a));
25933 + else if (opfunc == (void *)_paravirt_nop)
25934 /* If the operation is a nop, then nop the callsite */
25935 ret = paravirt_patch_nop();
25936
25937 /* identity functions just return their single argument */
25938 - else if (opfunc == _paravirt_ident_32)
25939 + else if (opfunc == (void *)_paravirt_ident_32)
25940 ret = paravirt_patch_ident_32(insnbuf, len);
25941 - else if (opfunc == _paravirt_ident_64)
25942 + else if (opfunc == (void *)_paravirt_ident_64)
25943 ret = paravirt_patch_ident_64(insnbuf, len);
25944 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
25945 + else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
25946 + ret = paravirt_patch_ident_64(insnbuf, len);
25947 +#endif
25948
25949 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
25950 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
25951 @@ -175,7 +182,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
25952 if (insn_len > len || start == NULL)
25953 insn_len = len;
25954 else
25955 - memcpy(insnbuf, start, insn_len);
25956 + memcpy(insnbuf, ktla_ktva(start), insn_len);
25957
25958 return insn_len;
25959 }
25960 @@ -299,7 +306,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
25961 return this_cpu_read(paravirt_lazy_mode);
25962 }
25963
25964 -struct pv_info pv_info = {
25965 +struct pv_info pv_info __read_only = {
25966 .name = "bare hardware",
25967 .paravirt_enabled = 0,
25968 .kernel_rpl = 0,
25969 @@ -310,16 +317,16 @@ struct pv_info pv_info = {
25970 #endif
25971 };
25972
25973 -struct pv_init_ops pv_init_ops = {
25974 +struct pv_init_ops pv_init_ops __read_only = {
25975 .patch = native_patch,
25976 };
25977
25978 -struct pv_time_ops pv_time_ops = {
25979 +struct pv_time_ops pv_time_ops __read_only = {
25980 .sched_clock = native_sched_clock,
25981 .steal_clock = native_steal_clock,
25982 };
25983
25984 -__visible struct pv_irq_ops pv_irq_ops = {
25985 +__visible struct pv_irq_ops pv_irq_ops __read_only = {
25986 .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
25987 .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
25988 .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
25989 @@ -331,7 +338,7 @@ __visible struct pv_irq_ops pv_irq_ops = {
25990 #endif
25991 };
25992
25993 -__visible struct pv_cpu_ops pv_cpu_ops = {
25994 +__visible struct pv_cpu_ops pv_cpu_ops __read_only = {
25995 .cpuid = native_cpuid,
25996 .get_debugreg = native_get_debugreg,
25997 .set_debugreg = native_set_debugreg,
25998 @@ -389,21 +396,26 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
25999 .end_context_switch = paravirt_nop,
26000 };
26001
26002 -struct pv_apic_ops pv_apic_ops = {
26003 +struct pv_apic_ops pv_apic_ops __read_only= {
26004 #ifdef CONFIG_X86_LOCAL_APIC
26005 .startup_ipi_hook = paravirt_nop,
26006 #endif
26007 };
26008
26009 -#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
26010 +#ifdef CONFIG_X86_32
26011 +#ifdef CONFIG_X86_PAE
26012 +/* 64-bit pagetable entries */
26013 +#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64)
26014 +#else
26015 /* 32-bit pagetable entries */
26016 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
26017 +#endif
26018 #else
26019 /* 64-bit pagetable entries */
26020 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
26021 #endif
26022
26023 -struct pv_mmu_ops pv_mmu_ops = {
26024 +struct pv_mmu_ops pv_mmu_ops __read_only = {
26025
26026 .read_cr2 = native_read_cr2,
26027 .write_cr2 = native_write_cr2,
26028 @@ -453,6 +465,7 @@ struct pv_mmu_ops pv_mmu_ops = {
26029 .make_pud = PTE_IDENT,
26030
26031 .set_pgd = native_set_pgd,
26032 + .set_pgd_batched = native_set_pgd_batched,
26033 #endif
26034 #endif /* PAGETABLE_LEVELS >= 3 */
26035
26036 @@ -473,6 +486,12 @@ struct pv_mmu_ops pv_mmu_ops = {
26037 },
26038
26039 .set_fixmap = native_set_fixmap,
26040 +
26041 +#ifdef CONFIG_PAX_KERNEXEC
26042 + .pax_open_kernel = native_pax_open_kernel,
26043 + .pax_close_kernel = native_pax_close_kernel,
26044 +#endif
26045 +
26046 };
26047
26048 EXPORT_SYMBOL_GPL(pv_time_ops);
26049 diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
26050 index 0497f71..7186c0d 100644
26051 --- a/arch/x86/kernel/pci-calgary_64.c
26052 +++ b/arch/x86/kernel/pci-calgary_64.c
26053 @@ -1347,7 +1347,7 @@ static void __init get_tce_space_from_tar(void)
26054 tce_space = be64_to_cpu(readq(target));
26055 tce_space = tce_space & TAR_SW_BITS;
26056
26057 - tce_space = tce_space & (~specified_table_size);
26058 + tce_space = tce_space & (~(unsigned long)specified_table_size);
26059 info->tce_space = (u64 *)__va(tce_space);
26060 }
26061 }
26062 diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
26063 index 35ccf75..7a15747 100644
26064 --- a/arch/x86/kernel/pci-iommu_table.c
26065 +++ b/arch/x86/kernel/pci-iommu_table.c
26066 @@ -2,7 +2,7 @@
26067 #include <asm/iommu_table.h>
26068 #include <linux/string.h>
26069 #include <linux/kallsyms.h>
26070 -
26071 +#include <linux/sched.h>
26072
26073 #define DEBUG 1
26074
26075 diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
26076 index 6c483ba..d10ce2f 100644
26077 --- a/arch/x86/kernel/pci-swiotlb.c
26078 +++ b/arch/x86/kernel/pci-swiotlb.c
26079 @@ -32,7 +32,7 @@ static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
26080 void *vaddr, dma_addr_t dma_addr,
26081 struct dma_attrs *attrs)
26082 {
26083 - swiotlb_free_coherent(dev, size, vaddr, dma_addr);
26084 + swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
26085 }
26086
26087 static struct dma_map_ops swiotlb_dma_ops = {
26088 diff --git a/arch/x86/kernel/preempt.S b/arch/x86/kernel/preempt.S
26089 index ca7f0d5..8996469 100644
26090 --- a/arch/x86/kernel/preempt.S
26091 +++ b/arch/x86/kernel/preempt.S
26092 @@ -3,12 +3,14 @@
26093 #include <asm/dwarf2.h>
26094 #include <asm/asm.h>
26095 #include <asm/calling.h>
26096 +#include <asm/alternative-asm.h>
26097
26098 ENTRY(___preempt_schedule)
26099 CFI_STARTPROC
26100 SAVE_ALL
26101 call preempt_schedule
26102 RESTORE_ALL
26103 + pax_force_retaddr
26104 ret
26105 CFI_ENDPROC
26106
26107 @@ -19,6 +21,7 @@ ENTRY(___preempt_schedule_context)
26108 SAVE_ALL
26109 call preempt_schedule_context
26110 RESTORE_ALL
26111 + pax_force_retaddr
26112 ret
26113 CFI_ENDPROC
26114
26115 diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
26116 index 4505e2a..ae28b0d 100644
26117 --- a/arch/x86/kernel/process.c
26118 +++ b/arch/x86/kernel/process.c
26119 @@ -36,7 +36,8 @@
26120 * section. Since TSS's are completely CPU-local, we want them
26121 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
26122 */
26123 -__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
26124 +struct tss_struct init_tss[NR_CPUS] __visible ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
26125 +EXPORT_SYMBOL(init_tss);
26126
26127 #ifdef CONFIG_X86_64
26128 static DEFINE_PER_CPU(unsigned char, is_idle);
26129 @@ -92,7 +93,7 @@ void arch_task_cache_init(void)
26130 task_xstate_cachep =
26131 kmem_cache_create("task_xstate", xstate_size,
26132 __alignof__(union thread_xstate),
26133 - SLAB_PANIC | SLAB_NOTRACK, NULL);
26134 + SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
26135 }
26136
26137 /*
26138 @@ -105,7 +106,7 @@ void exit_thread(void)
26139 unsigned long *bp = t->io_bitmap_ptr;
26140
26141 if (bp) {
26142 - struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
26143 + struct tss_struct *tss = init_tss + get_cpu();
26144
26145 t->io_bitmap_ptr = NULL;
26146 clear_thread_flag(TIF_IO_BITMAP);
26147 @@ -125,6 +126,9 @@ void flush_thread(void)
26148 {
26149 struct task_struct *tsk = current;
26150
26151 +#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
26152 + loadsegment(gs, 0);
26153 +#endif
26154 flush_ptrace_hw_breakpoint(tsk);
26155 memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
26156 drop_init_fpu(tsk);
26157 @@ -271,7 +275,7 @@ static void __exit_idle(void)
26158 void exit_idle(void)
26159 {
26160 /* idle loop has pid 0 */
26161 - if (current->pid)
26162 + if (task_pid_nr(current))
26163 return;
26164 __exit_idle();
26165 }
26166 @@ -324,7 +328,7 @@ bool xen_set_default_idle(void)
26167 return ret;
26168 }
26169 #endif
26170 -void stop_this_cpu(void *dummy)
26171 +__noreturn void stop_this_cpu(void *dummy)
26172 {
26173 local_irq_disable();
26174 /*
26175 @@ -453,16 +457,37 @@ static int __init idle_setup(char *str)
26176 }
26177 early_param("idle", idle_setup);
26178
26179 -unsigned long arch_align_stack(unsigned long sp)
26180 +#ifdef CONFIG_PAX_RANDKSTACK
26181 +void pax_randomize_kstack(struct pt_regs *regs)
26182 {
26183 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
26184 - sp -= get_random_int() % 8192;
26185 - return sp & ~0xf;
26186 -}
26187 + struct thread_struct *thread = &current->thread;
26188 + unsigned long time;
26189
26190 -unsigned long arch_randomize_brk(struct mm_struct *mm)
26191 -{
26192 - unsigned long range_end = mm->brk + 0x02000000;
26193 - return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
26194 -}
26195 + if (!randomize_va_space)
26196 + return;
26197 +
26198 + if (v8086_mode(regs))
26199 + return;
26200
26201 + rdtscl(time);
26202 +
26203 + /* P4 seems to return a 0 LSB, ignore it */
26204 +#ifdef CONFIG_MPENTIUM4
26205 + time &= 0x3EUL;
26206 + time <<= 2;
26207 +#elif defined(CONFIG_X86_64)
26208 + time &= 0xFUL;
26209 + time <<= 4;
26210 +#else
26211 + time &= 0x1FUL;
26212 + time <<= 3;
26213 +#endif
26214 +
26215 + thread->sp0 ^= time;
26216 + load_sp0(init_tss + smp_processor_id(), thread);
26217 +
26218 +#ifdef CONFIG_X86_64
26219 + this_cpu_write(kernel_stack, thread->sp0);
26220 +#endif
26221 +}
26222 +#endif
26223 diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
26224 index 7bc86bb..0ea06e8 100644
26225 --- a/arch/x86/kernel/process_32.c
26226 +++ b/arch/x86/kernel/process_32.c
26227 @@ -64,6 +64,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
26228 unsigned long thread_saved_pc(struct task_struct *tsk)
26229 {
26230 return ((unsigned long *)tsk->thread.sp)[3];
26231 +//XXX return tsk->thread.eip;
26232 }
26233
26234 void __show_regs(struct pt_regs *regs, int all)
26235 @@ -73,19 +74,18 @@ void __show_regs(struct pt_regs *regs, int all)
26236 unsigned long sp;
26237 unsigned short ss, gs;
26238
26239 - if (user_mode_vm(regs)) {
26240 + if (user_mode(regs)) {
26241 sp = regs->sp;
26242 ss = regs->ss & 0xffff;
26243 - gs = get_user_gs(regs);
26244 } else {
26245 sp = kernel_stack_pointer(regs);
26246 savesegment(ss, ss);
26247 - savesegment(gs, gs);
26248 }
26249 + gs = get_user_gs(regs);
26250
26251 printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
26252 (u16)regs->cs, regs->ip, regs->flags,
26253 - smp_processor_id());
26254 + raw_smp_processor_id());
26255 print_symbol("EIP is at %s\n", regs->ip);
26256
26257 printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
26258 @@ -132,20 +132,21 @@ void release_thread(struct task_struct *dead_task)
26259 int copy_thread(unsigned long clone_flags, unsigned long sp,
26260 unsigned long arg, struct task_struct *p)
26261 {
26262 - struct pt_regs *childregs = task_pt_regs(p);
26263 + struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
26264 struct task_struct *tsk;
26265 int err;
26266
26267 p->thread.sp = (unsigned long) childregs;
26268 p->thread.sp0 = (unsigned long) (childregs+1);
26269 + p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
26270
26271 if (unlikely(p->flags & PF_KTHREAD)) {
26272 /* kernel thread */
26273 memset(childregs, 0, sizeof(struct pt_regs));
26274 p->thread.ip = (unsigned long) ret_from_kernel_thread;
26275 - task_user_gs(p) = __KERNEL_STACK_CANARY;
26276 - childregs->ds = __USER_DS;
26277 - childregs->es = __USER_DS;
26278 + savesegment(gs, childregs->gs);
26279 + childregs->ds = __KERNEL_DS;
26280 + childregs->es = __KERNEL_DS;
26281 childregs->fs = __KERNEL_PERCPU;
26282 childregs->bx = sp; /* function */
26283 childregs->bp = arg;
26284 @@ -252,7 +253,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26285 struct thread_struct *prev = &prev_p->thread,
26286 *next = &next_p->thread;
26287 int cpu = smp_processor_id();
26288 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
26289 + struct tss_struct *tss = init_tss + cpu;
26290 fpu_switch_t fpu;
26291
26292 /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
26293 @@ -276,6 +277,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26294 */
26295 lazy_save_gs(prev->gs);
26296
26297 +#ifdef CONFIG_PAX_MEMORY_UDEREF
26298 + __set_fs(task_thread_info(next_p)->addr_limit);
26299 +#endif
26300 +
26301 /*
26302 * Load the per-thread Thread-Local Storage descriptor.
26303 */
26304 @@ -314,9 +319,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26305 */
26306 arch_end_context_switch(next_p);
26307
26308 - this_cpu_write(kernel_stack,
26309 - (unsigned long)task_stack_page(next_p) +
26310 - THREAD_SIZE - KERNEL_STACK_OFFSET);
26311 + this_cpu_write(current_task, next_p);
26312 + this_cpu_write(current_tinfo, &next_p->tinfo);
26313 + this_cpu_write(kernel_stack, next->sp0);
26314
26315 /*
26316 * Restore %gs if needed (which is common)
26317 @@ -326,8 +331,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26318
26319 switch_fpu_finish(next_p, fpu);
26320
26321 - this_cpu_write(current_task, next_p);
26322 -
26323 return prev_p;
26324 }
26325
26326 @@ -357,4 +360,3 @@ unsigned long get_wchan(struct task_struct *p)
26327 } while (count++ < 16);
26328 return 0;
26329 }
26330 -
26331 diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
26332 index 898d077..4c458ff 100644
26333 --- a/arch/x86/kernel/process_64.c
26334 +++ b/arch/x86/kernel/process_64.c
26335 @@ -158,10 +158,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26336 struct pt_regs *childregs;
26337 struct task_struct *me = current;
26338
26339 - p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
26340 + p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
26341 childregs = task_pt_regs(p);
26342 p->thread.sp = (unsigned long) childregs;
26343 p->thread.usersp = me->thread.usersp;
26344 + p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
26345 set_tsk_thread_flag(p, TIF_FORK);
26346 p->thread.fpu_counter = 0;
26347 p->thread.io_bitmap_ptr = NULL;
26348 @@ -172,6 +173,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26349 p->thread.fs = p->thread.fsindex ? 0 : me->thread.fs;
26350 savesegment(es, p->thread.es);
26351 savesegment(ds, p->thread.ds);
26352 + savesegment(ss, p->thread.ss);
26353 + BUG_ON(p->thread.ss == __UDEREF_KERNEL_DS);
26354 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
26355
26356 if (unlikely(p->flags & PF_KTHREAD)) {
26357 @@ -280,7 +283,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26358 struct thread_struct *prev = &prev_p->thread;
26359 struct thread_struct *next = &next_p->thread;
26360 int cpu = smp_processor_id();
26361 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
26362 + struct tss_struct *tss = init_tss + cpu;
26363 unsigned fsindex, gsindex;
26364 fpu_switch_t fpu;
26365
26366 @@ -303,6 +306,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26367 if (unlikely(next->ds | prev->ds))
26368 loadsegment(ds, next->ds);
26369
26370 + savesegment(ss, prev->ss);
26371 + if (unlikely(next->ss != prev->ss))
26372 + loadsegment(ss, next->ss);
26373
26374 /* We must save %fs and %gs before load_TLS() because
26375 * %fs and %gs may be cleared by load_TLS().
26376 @@ -362,6 +368,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26377 prev->usersp = this_cpu_read(old_rsp);
26378 this_cpu_write(old_rsp, next->usersp);
26379 this_cpu_write(current_task, next_p);
26380 + this_cpu_write(current_tinfo, &next_p->tinfo);
26381
26382 /*
26383 * If it were not for PREEMPT_ACTIVE we could guarantee that the
26384 @@ -371,9 +378,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26385 task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
26386 this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
26387
26388 - this_cpu_write(kernel_stack,
26389 - (unsigned long)task_stack_page(next_p) +
26390 - THREAD_SIZE - KERNEL_STACK_OFFSET);
26391 + this_cpu_write(kernel_stack, next->sp0);
26392
26393 /*
26394 * Now maybe reload the debug registers and handle I/O bitmaps
26395 @@ -442,12 +447,11 @@ unsigned long get_wchan(struct task_struct *p)
26396 if (!p || p == current || p->state == TASK_RUNNING)
26397 return 0;
26398 stack = (unsigned long)task_stack_page(p);
26399 - if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
26400 + if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
26401 return 0;
26402 fp = *(u64 *)(p->thread.sp);
26403 do {
26404 - if (fp < (unsigned long)stack ||
26405 - fp >= (unsigned long)stack+THREAD_SIZE)
26406 + if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
26407 return 0;
26408 ip = *(u64 *)(fp+8);
26409 if (!in_sched_functions(ip))
26410 diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
26411 index 678c0ad..2fc2a7b 100644
26412 --- a/arch/x86/kernel/ptrace.c
26413 +++ b/arch/x86/kernel/ptrace.c
26414 @@ -186,10 +186,10 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
26415 unsigned long sp = (unsigned long)&regs->sp;
26416 u32 *prev_esp;
26417
26418 - if (context == (sp & ~(THREAD_SIZE - 1)))
26419 + if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
26420 return sp;
26421
26422 - prev_esp = (u32 *)(context);
26423 + prev_esp = *(u32 **)(context);
26424 if (prev_esp)
26425 return (unsigned long)prev_esp;
26426
26427 @@ -452,6 +452,20 @@ static int putreg(struct task_struct *child,
26428 if (child->thread.gs != value)
26429 return do_arch_prctl(child, ARCH_SET_GS, value);
26430 return 0;
26431 +
26432 + case offsetof(struct user_regs_struct,ip):
26433 + /*
26434 + * Protect against any attempt to set ip to an
26435 + * impossible address. There are dragons lurking if the
26436 + * address is noncanonical. (This explicitly allows
26437 + * setting ip to TASK_SIZE_MAX, because user code can do
26438 + * that all by itself by running off the end of its
26439 + * address space.
26440 + */
26441 + if (value > TASK_SIZE_MAX)
26442 + return -EIO;
26443 + break;
26444 +
26445 #endif
26446 }
26447
26448 @@ -588,7 +602,7 @@ static void ptrace_triggered(struct perf_event *bp,
26449 static unsigned long ptrace_get_dr7(struct perf_event *bp[])
26450 {
26451 int i;
26452 - int dr7 = 0;
26453 + unsigned long dr7 = 0;
26454 struct arch_hw_breakpoint *info;
26455
26456 for (i = 0; i < HBP_NUM; i++) {
26457 @@ -822,7 +836,7 @@ long arch_ptrace(struct task_struct *child, long request,
26458 unsigned long addr, unsigned long data)
26459 {
26460 int ret;
26461 - unsigned long __user *datap = (unsigned long __user *)data;
26462 + unsigned long __user *datap = (__force unsigned long __user *)data;
26463
26464 switch (request) {
26465 /* read the word at location addr in the USER area. */
26466 @@ -907,14 +921,14 @@ long arch_ptrace(struct task_struct *child, long request,
26467 if ((int) addr < 0)
26468 return -EIO;
26469 ret = do_get_thread_area(child, addr,
26470 - (struct user_desc __user *)data);
26471 + (__force struct user_desc __user *) data);
26472 break;
26473
26474 case PTRACE_SET_THREAD_AREA:
26475 if ((int) addr < 0)
26476 return -EIO;
26477 ret = do_set_thread_area(child, addr,
26478 - (struct user_desc __user *)data, 0);
26479 + (__force struct user_desc __user *) data, 0);
26480 break;
26481 #endif
26482
26483 @@ -1292,7 +1306,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
26484
26485 #ifdef CONFIG_X86_64
26486
26487 -static struct user_regset x86_64_regsets[] __read_mostly = {
26488 +static user_regset_no_const x86_64_regsets[] __read_only = {
26489 [REGSET_GENERAL] = {
26490 .core_note_type = NT_PRSTATUS,
26491 .n = sizeof(struct user_regs_struct) / sizeof(long),
26492 @@ -1333,7 +1347,7 @@ static const struct user_regset_view user_x86_64_view = {
26493 #endif /* CONFIG_X86_64 */
26494
26495 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
26496 -static struct user_regset x86_32_regsets[] __read_mostly = {
26497 +static user_regset_no_const x86_32_regsets[] __read_only = {
26498 [REGSET_GENERAL] = {
26499 .core_note_type = NT_PRSTATUS,
26500 .n = sizeof(struct user_regs_struct32) / sizeof(u32),
26501 @@ -1386,7 +1400,7 @@ static const struct user_regset_view user_x86_32_view = {
26502 */
26503 u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
26504
26505 -void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26506 +void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26507 {
26508 #ifdef CONFIG_X86_64
26509 x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
26510 @@ -1421,7 +1435,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
26511 memset(info, 0, sizeof(*info));
26512 info->si_signo = SIGTRAP;
26513 info->si_code = si_code;
26514 - info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
26515 + info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
26516 }
26517
26518 void user_single_step_siginfo(struct task_struct *tsk,
26519 @@ -1450,6 +1464,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
26520 # define IS_IA32 0
26521 #endif
26522
26523 +#ifdef CONFIG_GRKERNSEC_SETXID
26524 +extern void gr_delayed_cred_worker(void);
26525 +#endif
26526 +
26527 /*
26528 * We must return the syscall number to actually look up in the table.
26529 * This can be -1L to skip running any syscall at all.
26530 @@ -1460,6 +1478,11 @@ long syscall_trace_enter(struct pt_regs *regs)
26531
26532 user_exit();
26533
26534 +#ifdef CONFIG_GRKERNSEC_SETXID
26535 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26536 + gr_delayed_cred_worker();
26537 +#endif
26538 +
26539 /*
26540 * If we stepped into a sysenter/syscall insn, it trapped in
26541 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
26542 @@ -1515,6 +1538,11 @@ void syscall_trace_leave(struct pt_regs *regs)
26543 */
26544 user_exit();
26545
26546 +#ifdef CONFIG_GRKERNSEC_SETXID
26547 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26548 + gr_delayed_cred_worker();
26549 +#endif
26550 +
26551 audit_syscall_exit(regs);
26552
26553 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
26554 diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
26555 index 2f355d2..e75ed0a 100644
26556 --- a/arch/x86/kernel/pvclock.c
26557 +++ b/arch/x86/kernel/pvclock.c
26558 @@ -51,11 +51,11 @@ void pvclock_touch_watchdogs(void)
26559 reset_hung_task_detector();
26560 }
26561
26562 -static atomic64_t last_value = ATOMIC64_INIT(0);
26563 +static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
26564
26565 void pvclock_resume(void)
26566 {
26567 - atomic64_set(&last_value, 0);
26568 + atomic64_set_unchecked(&last_value, 0);
26569 }
26570
26571 u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
26572 @@ -105,11 +105,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
26573 * updating at the same time, and one of them could be slightly behind,
26574 * making the assumption that last_value always go forward fail to hold.
26575 */
26576 - last = atomic64_read(&last_value);
26577 + last = atomic64_read_unchecked(&last_value);
26578 do {
26579 if (ret < last)
26580 return last;
26581 - last = atomic64_cmpxchg(&last_value, last, ret);
26582 + last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
26583 } while (unlikely(last != ret));
26584
26585 return ret;
26586 diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
26587 index 52b1157..c6e67c4 100644
26588 --- a/arch/x86/kernel/reboot.c
26589 +++ b/arch/x86/kernel/reboot.c
26590 @@ -68,6 +68,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
26591
26592 void __noreturn machine_real_restart(unsigned int type)
26593 {
26594 +
26595 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
26596 + struct desc_struct *gdt;
26597 +#endif
26598 +
26599 local_irq_disable();
26600
26601 /*
26602 @@ -95,7 +100,29 @@ void __noreturn machine_real_restart(unsigned int type)
26603
26604 /* Jump to the identity-mapped low memory code */
26605 #ifdef CONFIG_X86_32
26606 - asm volatile("jmpl *%0" : :
26607 +
26608 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
26609 + gdt = get_cpu_gdt_table(smp_processor_id());
26610 + pax_open_kernel();
26611 +#ifdef CONFIG_PAX_MEMORY_UDEREF
26612 + gdt[GDT_ENTRY_KERNEL_DS].type = 3;
26613 + gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
26614 + loadsegment(ds, __KERNEL_DS);
26615 + loadsegment(es, __KERNEL_DS);
26616 + loadsegment(ss, __KERNEL_DS);
26617 +#endif
26618 +#ifdef CONFIG_PAX_KERNEXEC
26619 + gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
26620 + gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
26621 + gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
26622 + gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
26623 + gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
26624 + gdt[GDT_ENTRY_KERNEL_CS].g = 1;
26625 +#endif
26626 + pax_close_kernel();
26627 +#endif
26628 +
26629 + asm volatile("ljmpl *%0" : :
26630 "rm" (real_mode_header->machine_real_restart_asm),
26631 "a" (type));
26632 #else
26633 @@ -486,7 +513,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
26634 * This means that this function can never return, it can misbehave
26635 * by not rebooting properly and hanging.
26636 */
26637 -static void native_machine_emergency_restart(void)
26638 +static void __noreturn native_machine_emergency_restart(void)
26639 {
26640 int i;
26641 int attempt = 0;
26642 @@ -610,13 +637,13 @@ void native_machine_shutdown(void)
26643 #endif
26644 }
26645
26646 -static void __machine_emergency_restart(int emergency)
26647 +static void __noreturn __machine_emergency_restart(int emergency)
26648 {
26649 reboot_emergency = emergency;
26650 machine_ops.emergency_restart();
26651 }
26652
26653 -static void native_machine_restart(char *__unused)
26654 +static void __noreturn native_machine_restart(char *__unused)
26655 {
26656 pr_notice("machine restart\n");
26657
26658 @@ -625,7 +652,7 @@ static void native_machine_restart(char *__unused)
26659 __machine_emergency_restart(0);
26660 }
26661
26662 -static void native_machine_halt(void)
26663 +static void __noreturn native_machine_halt(void)
26664 {
26665 /* Stop other cpus and apics */
26666 machine_shutdown();
26667 @@ -635,7 +662,7 @@ static void native_machine_halt(void)
26668 stop_this_cpu(NULL);
26669 }
26670
26671 -static void native_machine_power_off(void)
26672 +static void __noreturn native_machine_power_off(void)
26673 {
26674 if (pm_power_off) {
26675 if (!reboot_force)
26676 @@ -644,9 +671,10 @@ static void native_machine_power_off(void)
26677 }
26678 /* A fallback in case there is no PM info available */
26679 tboot_shutdown(TB_SHUTDOWN_HALT);
26680 + unreachable();
26681 }
26682
26683 -struct machine_ops machine_ops = {
26684 +struct machine_ops machine_ops __read_only = {
26685 .power_off = native_machine_power_off,
26686 .shutdown = native_machine_shutdown,
26687 .emergency_restart = native_machine_emergency_restart,
26688 diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
26689 index c8e41e9..64049ef 100644
26690 --- a/arch/x86/kernel/reboot_fixups_32.c
26691 +++ b/arch/x86/kernel/reboot_fixups_32.c
26692 @@ -57,7 +57,7 @@ struct device_fixup {
26693 unsigned int vendor;
26694 unsigned int device;
26695 void (*reboot_fixup)(struct pci_dev *);
26696 -};
26697 +} __do_const;
26698
26699 /*
26700 * PCI ids solely used for fixups_table go here
26701 diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
26702 index 3fd2c69..a444264 100644
26703 --- a/arch/x86/kernel/relocate_kernel_64.S
26704 +++ b/arch/x86/kernel/relocate_kernel_64.S
26705 @@ -96,8 +96,7 @@ relocate_kernel:
26706
26707 /* jump to identity mapped page */
26708 addq $(identity_mapped - relocate_kernel), %r8
26709 - pushq %r8
26710 - ret
26711 + jmp *%r8
26712
26713 identity_mapped:
26714 /* set return address to 0 if not preserving context */
26715 diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
26716 index 09c76d2..7f33fc2 100644
26717 --- a/arch/x86/kernel/setup.c
26718 +++ b/arch/x86/kernel/setup.c
26719 @@ -110,6 +110,7 @@
26720 #include <asm/mce.h>
26721 #include <asm/alternative.h>
26722 #include <asm/prom.h>
26723 +#include <asm/boot.h>
26724
26725 /*
26726 * max_low_pfn_mapped: highest direct mapped pfn under 4GB
26727 @@ -205,12 +206,50 @@ EXPORT_SYMBOL(boot_cpu_data);
26728 #endif
26729
26730
26731 -#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
26732 -__visible unsigned long mmu_cr4_features;
26733 +#ifdef CONFIG_X86_64
26734 +__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE;
26735 +#elif defined(CONFIG_X86_PAE)
26736 +__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PAE;
26737 #else
26738 -__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
26739 +__visible unsigned long mmu_cr4_features __read_only;
26740 #endif
26741
26742 +void set_in_cr4(unsigned long mask)
26743 +{
26744 + unsigned long cr4 = read_cr4();
26745 +
26746 + if ((cr4 & mask) == mask && cr4 == mmu_cr4_features)
26747 + return;
26748 +
26749 + pax_open_kernel();
26750 + mmu_cr4_features |= mask;
26751 + pax_close_kernel();
26752 +
26753 + if (trampoline_cr4_features)
26754 + *trampoline_cr4_features = mmu_cr4_features;
26755 + cr4 |= mask;
26756 + write_cr4(cr4);
26757 +}
26758 +EXPORT_SYMBOL(set_in_cr4);
26759 +
26760 +void clear_in_cr4(unsigned long mask)
26761 +{
26762 + unsigned long cr4 = read_cr4();
26763 +
26764 + if (!(cr4 & mask) && cr4 == mmu_cr4_features)
26765 + return;
26766 +
26767 + pax_open_kernel();
26768 + mmu_cr4_features &= ~mask;
26769 + pax_close_kernel();
26770 +
26771 + if (trampoline_cr4_features)
26772 + *trampoline_cr4_features = mmu_cr4_features;
26773 + cr4 &= ~mask;
26774 + write_cr4(cr4);
26775 +}
26776 +EXPORT_SYMBOL(clear_in_cr4);
26777 +
26778 /* Boot loader ID and version as integers, for the benefit of proc_dointvec */
26779 int bootloader_type, bootloader_version;
26780
26781 @@ -772,7 +811,7 @@ static void __init trim_bios_range(void)
26782 * area (640->1Mb) as ram even though it is not.
26783 * take them out.
26784 */
26785 - e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
26786 + e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
26787
26788 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
26789 }
26790 @@ -780,7 +819,7 @@ static void __init trim_bios_range(void)
26791 /* called before trim_bios_range() to spare extra sanitize */
26792 static void __init e820_add_kernel_range(void)
26793 {
26794 - u64 start = __pa_symbol(_text);
26795 + u64 start = __pa_symbol(ktla_ktva(_text));
26796 u64 size = __pa_symbol(_end) - start;
26797
26798 /*
26799 @@ -856,8 +895,12 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
26800
26801 void __init setup_arch(char **cmdline_p)
26802 {
26803 +#ifdef CONFIG_X86_32
26804 + memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(__bss_stop) - LOAD_PHYSICAL_ADDR);
26805 +#else
26806 memblock_reserve(__pa_symbol(_text),
26807 (unsigned long)__bss_stop - (unsigned long)_text);
26808 +#endif
26809
26810 early_reserve_initrd();
26811
26812 @@ -946,14 +989,14 @@ void __init setup_arch(char **cmdline_p)
26813
26814 if (!boot_params.hdr.root_flags)
26815 root_mountflags &= ~MS_RDONLY;
26816 - init_mm.start_code = (unsigned long) _text;
26817 - init_mm.end_code = (unsigned long) _etext;
26818 + init_mm.start_code = ktla_ktva((unsigned long) _text);
26819 + init_mm.end_code = ktla_ktva((unsigned long) _etext);
26820 init_mm.end_data = (unsigned long) _edata;
26821 init_mm.brk = _brk_end;
26822
26823 - code_resource.start = __pa_symbol(_text);
26824 - code_resource.end = __pa_symbol(_etext)-1;
26825 - data_resource.start = __pa_symbol(_etext);
26826 + code_resource.start = __pa_symbol(ktla_ktva(_text));
26827 + code_resource.end = __pa_symbol(ktla_ktva(_etext))-1;
26828 + data_resource.start = __pa_symbol(_sdata);
26829 data_resource.end = __pa_symbol(_edata)-1;
26830 bss_resource.start = __pa_symbol(__bss_start);
26831 bss_resource.end = __pa_symbol(__bss_stop)-1;
26832 diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
26833 index 5cdff03..80fa283 100644
26834 --- a/arch/x86/kernel/setup_percpu.c
26835 +++ b/arch/x86/kernel/setup_percpu.c
26836 @@ -21,19 +21,17 @@
26837 #include <asm/cpu.h>
26838 #include <asm/stackprotector.h>
26839
26840 -DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
26841 +#ifdef CONFIG_SMP
26842 +DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
26843 EXPORT_PER_CPU_SYMBOL(cpu_number);
26844 +#endif
26845
26846 -#ifdef CONFIG_X86_64
26847 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
26848 -#else
26849 -#define BOOT_PERCPU_OFFSET 0
26850 -#endif
26851
26852 DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
26853 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
26854
26855 -unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
26856 +unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
26857 [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
26858 };
26859 EXPORT_SYMBOL(__per_cpu_offset);
26860 @@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
26861 {
26862 #ifdef CONFIG_NEED_MULTIPLE_NODES
26863 pg_data_t *last = NULL;
26864 - unsigned int cpu;
26865 + int cpu;
26866
26867 for_each_possible_cpu(cpu) {
26868 int node = early_cpu_to_node(cpu);
26869 @@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
26870 {
26871 #ifdef CONFIG_X86_32
26872 struct desc_struct gdt;
26873 + unsigned long base = per_cpu_offset(cpu);
26874
26875 - pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
26876 - 0x2 | DESCTYPE_S, 0x8);
26877 - gdt.s = 1;
26878 + pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
26879 + 0x83 | DESCTYPE_S, 0xC);
26880 write_gdt_entry(get_cpu_gdt_table(cpu),
26881 GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
26882 #endif
26883 @@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
26884 /* alrighty, percpu areas up and running */
26885 delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
26886 for_each_possible_cpu(cpu) {
26887 +#ifdef CONFIG_CC_STACKPROTECTOR
26888 +#ifdef CONFIG_X86_32
26889 + unsigned long canary = per_cpu(stack_canary.canary, cpu);
26890 +#endif
26891 +#endif
26892 per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
26893 per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
26894 per_cpu(cpu_number, cpu) = cpu;
26895 @@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
26896 */
26897 set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
26898 #endif
26899 +#ifdef CONFIG_CC_STACKPROTECTOR
26900 +#ifdef CONFIG_X86_32
26901 + if (!cpu)
26902 + per_cpu(stack_canary.canary, cpu) = canary;
26903 +#endif
26904 +#endif
26905 /*
26906 * Up to this point, the boot CPU has been using .init.data
26907 * area. Reload any changed state for the boot CPU.
26908 diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
26909 index 9e5de68..16c53cb 100644
26910 --- a/arch/x86/kernel/signal.c
26911 +++ b/arch/x86/kernel/signal.c
26912 @@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp)
26913 * Align the stack pointer according to the i386 ABI,
26914 * i.e. so that on function entry ((sp + 4) & 15) == 0.
26915 */
26916 - sp = ((sp + 4) & -16ul) - 4;
26917 + sp = ((sp - 12) & -16ul) - 4;
26918 #else /* !CONFIG_X86_32 */
26919 sp = round_down(sp, 16) - 8;
26920 #endif
26921 @@ -298,9 +298,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
26922 }
26923
26924 if (current->mm->context.vdso)
26925 - restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
26926 + restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
26927 else
26928 - restorer = &frame->retcode;
26929 + restorer = (void __user *)&frame->retcode;
26930 if (ksig->ka.sa.sa_flags & SA_RESTORER)
26931 restorer = ksig->ka.sa.sa_restorer;
26932
26933 @@ -314,7 +314,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
26934 * reasons and because gdb uses it as a signature to notice
26935 * signal handler stack frames.
26936 */
26937 - err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
26938 + err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
26939
26940 if (err)
26941 return -EFAULT;
26942 @@ -361,7 +361,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
26943 save_altstack_ex(&frame->uc.uc_stack, regs->sp);
26944
26945 /* Set up to return from userspace. */
26946 - restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
26947 + if (current->mm->context.vdso)
26948 + restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
26949 + else
26950 + restorer = (void __user *)&frame->retcode;
26951 if (ksig->ka.sa.sa_flags & SA_RESTORER)
26952 restorer = ksig->ka.sa.sa_restorer;
26953 put_user_ex(restorer, &frame->pretcode);
26954 @@ -373,7 +376,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
26955 * reasons and because gdb uses it as a signature to notice
26956 * signal handler stack frames.
26957 */
26958 - put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
26959 + put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
26960 } put_user_catch(err);
26961
26962 err |= copy_siginfo_to_user(&frame->info, &ksig->info);
26963 @@ -609,7 +612,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
26964 {
26965 int usig = signr_convert(ksig->sig);
26966 sigset_t *set = sigmask_to_save();
26967 - compat_sigset_t *cset = (compat_sigset_t *) set;
26968 + sigset_t sigcopy;
26969 + compat_sigset_t *cset;
26970 +
26971 + sigcopy = *set;
26972 +
26973 + cset = (compat_sigset_t *) &sigcopy;
26974
26975 /* Set up the stack frame */
26976 if (is_ia32_frame()) {
26977 @@ -620,7 +628,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
26978 } else if (is_x32_frame()) {
26979 return x32_setup_rt_frame(ksig, cset, regs);
26980 } else {
26981 - return __setup_rt_frame(ksig->sig, ksig, set, regs);
26982 + return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
26983 }
26984 }
26985
26986 diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
26987 index be8e1bd..a3d93fa 100644
26988 --- a/arch/x86/kernel/smp.c
26989 +++ b/arch/x86/kernel/smp.c
26990 @@ -341,7 +341,7 @@ static int __init nonmi_ipi_setup(char *str)
26991
26992 __setup("nonmi_ipi", nonmi_ipi_setup);
26993
26994 -struct smp_ops smp_ops = {
26995 +struct smp_ops smp_ops __read_only = {
26996 .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
26997 .smp_prepare_cpus = native_smp_prepare_cpus,
26998 .smp_cpus_done = native_smp_cpus_done,
26999 diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
27000 index ae2fd975..c0c8d10 100644
27001 --- a/arch/x86/kernel/smpboot.c
27002 +++ b/arch/x86/kernel/smpboot.c
27003 @@ -230,14 +230,17 @@ static void notrace start_secondary(void *unused)
27004
27005 enable_start_cpu0 = 0;
27006
27007 -#ifdef CONFIG_X86_32
27008 + /* otherwise gcc will move up smp_processor_id before the cpu_init */
27009 + barrier();
27010 +
27011 /* switch away from the initial page table */
27012 +#ifdef CONFIG_PAX_PER_CPU_PGD
27013 + load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
27014 +#else
27015 load_cr3(swapper_pg_dir);
27016 +#endif
27017 __flush_tlb_all();
27018 -#endif
27019
27020 - /* otherwise gcc will move up smp_processor_id before the cpu_init */
27021 - barrier();
27022 /*
27023 * Check TSC synchronization with the BP:
27024 */
27025 @@ -757,8 +760,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27026 alternatives_enable_smp();
27027
27028 idle->thread.sp = (unsigned long) (((struct pt_regs *)
27029 - (THREAD_SIZE + task_stack_page(idle))) - 1);
27030 + (THREAD_SIZE - 16 + task_stack_page(idle))) - 1);
27031 per_cpu(current_task, cpu) = idle;
27032 + per_cpu(current_tinfo, cpu) = &idle->tinfo;
27033
27034 #ifdef CONFIG_X86_32
27035 /* Stack for startup_32 can be just as for start_secondary onwards */
27036 @@ -767,10 +771,10 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27037 clear_tsk_thread_flag(idle, TIF_FORK);
27038 initial_gs = per_cpu_offset(cpu);
27039 #endif
27040 - per_cpu(kernel_stack, cpu) =
27041 - (unsigned long)task_stack_page(idle) -
27042 - KERNEL_STACK_OFFSET + THREAD_SIZE;
27043 + per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
27044 + pax_open_kernel();
27045 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
27046 + pax_close_kernel();
27047 initial_code = (unsigned long)start_secondary;
27048 stack_start = idle->thread.sp;
27049
27050 @@ -916,6 +920,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
27051 /* the FPU context is blank, nobody can own it */
27052 __cpu_disable_lazy_restore(cpu);
27053
27054 +#ifdef CONFIG_PAX_PER_CPU_PGD
27055 + clone_pgd_range(get_cpu_pgd(cpu, kernel) + KERNEL_PGD_BOUNDARY,
27056 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27057 + KERNEL_PGD_PTRS);
27058 + clone_pgd_range(get_cpu_pgd(cpu, user) + KERNEL_PGD_BOUNDARY,
27059 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27060 + KERNEL_PGD_PTRS);
27061 +#endif
27062 +
27063 err = do_boot_cpu(apicid, cpu, tidle);
27064 if (err) {
27065 pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
27066 diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
27067 index 9b4d51d..5d28b58 100644
27068 --- a/arch/x86/kernel/step.c
27069 +++ b/arch/x86/kernel/step.c
27070 @@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27071 struct desc_struct *desc;
27072 unsigned long base;
27073
27074 - seg &= ~7UL;
27075 + seg >>= 3;
27076
27077 mutex_lock(&child->mm->context.lock);
27078 - if (unlikely((seg >> 3) >= child->mm->context.size))
27079 + if (unlikely(seg >= child->mm->context.size))
27080 addr = -1L; /* bogus selector, access would fault */
27081 else {
27082 desc = child->mm->context.ldt + seg;
27083 @@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27084 addr += base;
27085 }
27086 mutex_unlock(&child->mm->context.lock);
27087 - }
27088 + } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
27089 + addr = ktla_ktva(addr);
27090
27091 return addr;
27092 }
27093 @@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
27094 unsigned char opcode[15];
27095 unsigned long addr = convert_ip_to_linear(child, regs);
27096
27097 + if (addr == -EINVAL)
27098 + return 0;
27099 +
27100 copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
27101 for (i = 0; i < copied; i++) {
27102 switch (opcode[i]) {
27103 diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
27104 new file mode 100644
27105 index 0000000..5877189
27106 --- /dev/null
27107 +++ b/arch/x86/kernel/sys_i386_32.c
27108 @@ -0,0 +1,189 @@
27109 +/*
27110 + * This file contains various random system calls that
27111 + * have a non-standard calling sequence on the Linux/i386
27112 + * platform.
27113 + */
27114 +
27115 +#include <linux/errno.h>
27116 +#include <linux/sched.h>
27117 +#include <linux/mm.h>
27118 +#include <linux/fs.h>
27119 +#include <linux/smp.h>
27120 +#include <linux/sem.h>
27121 +#include <linux/msg.h>
27122 +#include <linux/shm.h>
27123 +#include <linux/stat.h>
27124 +#include <linux/syscalls.h>
27125 +#include <linux/mman.h>
27126 +#include <linux/file.h>
27127 +#include <linux/utsname.h>
27128 +#include <linux/ipc.h>
27129 +#include <linux/elf.h>
27130 +
27131 +#include <linux/uaccess.h>
27132 +#include <linux/unistd.h>
27133 +
27134 +#include <asm/syscalls.h>
27135 +
27136 +int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
27137 +{
27138 + unsigned long pax_task_size = TASK_SIZE;
27139 +
27140 +#ifdef CONFIG_PAX_SEGMEXEC
27141 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
27142 + pax_task_size = SEGMEXEC_TASK_SIZE;
27143 +#endif
27144 +
27145 + if (flags & MAP_FIXED)
27146 + if (len > pax_task_size || addr > pax_task_size - len)
27147 + return -EINVAL;
27148 +
27149 + return 0;
27150 +}
27151 +
27152 +/*
27153 + * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
27154 + */
27155 +static unsigned long get_align_mask(void)
27156 +{
27157 + if (va_align.flags < 0 || !(va_align.flags & ALIGN_VA_32))
27158 + return 0;
27159 +
27160 + if (!(current->flags & PF_RANDOMIZE))
27161 + return 0;
27162 +
27163 + return va_align.mask;
27164 +}
27165 +
27166 +unsigned long
27167 +arch_get_unmapped_area(struct file *filp, unsigned long addr,
27168 + unsigned long len, unsigned long pgoff, unsigned long flags)
27169 +{
27170 + struct mm_struct *mm = current->mm;
27171 + struct vm_area_struct *vma;
27172 + unsigned long pax_task_size = TASK_SIZE;
27173 + struct vm_unmapped_area_info info;
27174 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27175 +
27176 +#ifdef CONFIG_PAX_SEGMEXEC
27177 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
27178 + pax_task_size = SEGMEXEC_TASK_SIZE;
27179 +#endif
27180 +
27181 + pax_task_size -= PAGE_SIZE;
27182 +
27183 + if (len > pax_task_size)
27184 + return -ENOMEM;
27185 +
27186 + if (flags & MAP_FIXED)
27187 + return addr;
27188 +
27189 +#ifdef CONFIG_PAX_RANDMMAP
27190 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27191 +#endif
27192 +
27193 + if (addr) {
27194 + addr = PAGE_ALIGN(addr);
27195 + if (pax_task_size - len >= addr) {
27196 + vma = find_vma(mm, addr);
27197 + if (check_heap_stack_gap(vma, addr, len, offset))
27198 + return addr;
27199 + }
27200 + }
27201 +
27202 + info.flags = 0;
27203 + info.length = len;
27204 + info.align_mask = filp ? get_align_mask() : 0;
27205 + info.align_offset = pgoff << PAGE_SHIFT;
27206 + info.threadstack_offset = offset;
27207 +
27208 +#ifdef CONFIG_PAX_PAGEEXEC
27209 + if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) {
27210 + info.low_limit = 0x00110000UL;
27211 + info.high_limit = mm->start_code;
27212 +
27213 +#ifdef CONFIG_PAX_RANDMMAP
27214 + if (mm->pax_flags & MF_PAX_RANDMMAP)
27215 + info.low_limit += mm->delta_mmap & 0x03FFF000UL;
27216 +#endif
27217 +
27218 + if (info.low_limit < info.high_limit) {
27219 + addr = vm_unmapped_area(&info);
27220 + if (!IS_ERR_VALUE(addr))
27221 + return addr;
27222 + }
27223 + } else
27224 +#endif
27225 +
27226 + info.low_limit = mm->mmap_base;
27227 + info.high_limit = pax_task_size;
27228 +
27229 + return vm_unmapped_area(&info);
27230 +}
27231 +
27232 +unsigned long
27233 +arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27234 + const unsigned long len, const unsigned long pgoff,
27235 + const unsigned long flags)
27236 +{
27237 + struct vm_area_struct *vma;
27238 + struct mm_struct *mm = current->mm;
27239 + unsigned long addr = addr0, pax_task_size = TASK_SIZE;
27240 + struct vm_unmapped_area_info info;
27241 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27242 +
27243 +#ifdef CONFIG_PAX_SEGMEXEC
27244 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
27245 + pax_task_size = SEGMEXEC_TASK_SIZE;
27246 +#endif
27247 +
27248 + pax_task_size -= PAGE_SIZE;
27249 +
27250 + /* requested length too big for entire address space */
27251 + if (len > pax_task_size)
27252 + return -ENOMEM;
27253 +
27254 + if (flags & MAP_FIXED)
27255 + return addr;
27256 +
27257 +#ifdef CONFIG_PAX_PAGEEXEC
27258 + if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
27259 + goto bottomup;
27260 +#endif
27261 +
27262 +#ifdef CONFIG_PAX_RANDMMAP
27263 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27264 +#endif
27265 +
27266 + /* requesting a specific address */
27267 + if (addr) {
27268 + addr = PAGE_ALIGN(addr);
27269 + if (pax_task_size - len >= addr) {
27270 + vma = find_vma(mm, addr);
27271 + if (check_heap_stack_gap(vma, addr, len, offset))
27272 + return addr;
27273 + }
27274 + }
27275 +
27276 + info.flags = VM_UNMAPPED_AREA_TOPDOWN;
27277 + info.length = len;
27278 + info.low_limit = PAGE_SIZE;
27279 + info.high_limit = mm->mmap_base;
27280 + info.align_mask = filp ? get_align_mask() : 0;
27281 + info.align_offset = pgoff << PAGE_SHIFT;
27282 + info.threadstack_offset = offset;
27283 +
27284 + addr = vm_unmapped_area(&info);
27285 + if (!(addr & ~PAGE_MASK))
27286 + return addr;
27287 + VM_BUG_ON(addr != -ENOMEM);
27288 +
27289 +bottomup:
27290 + /*
27291 + * A failed mmap() very likely causes application failure,
27292 + * so fall back to the bottom-up function here. This scenario
27293 + * can happen with large stack limits and large mmap()
27294 + * allocations.
27295 + */
27296 + return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
27297 +}
27298 diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
27299 index 30277e2..5664a29 100644
27300 --- a/arch/x86/kernel/sys_x86_64.c
27301 +++ b/arch/x86/kernel/sys_x86_64.c
27302 @@ -81,8 +81,8 @@ out:
27303 return error;
27304 }
27305
27306 -static void find_start_end(unsigned long flags, unsigned long *begin,
27307 - unsigned long *end)
27308 +static void find_start_end(struct mm_struct *mm, unsigned long flags,
27309 + unsigned long *begin, unsigned long *end)
27310 {
27311 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
27312 unsigned long new_begin;
27313 @@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
27314 *begin = new_begin;
27315 }
27316 } else {
27317 - *begin = current->mm->mmap_legacy_base;
27318 + *begin = mm->mmap_legacy_base;
27319 *end = TASK_SIZE;
27320 }
27321 }
27322 @@ -114,20 +114,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27323 struct vm_area_struct *vma;
27324 struct vm_unmapped_area_info info;
27325 unsigned long begin, end;
27326 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27327
27328 if (flags & MAP_FIXED)
27329 return addr;
27330
27331 - find_start_end(flags, &begin, &end);
27332 + find_start_end(mm, flags, &begin, &end);
27333
27334 if (len > end)
27335 return -ENOMEM;
27336
27337 +#ifdef CONFIG_PAX_RANDMMAP
27338 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27339 +#endif
27340 +
27341 if (addr) {
27342 addr = PAGE_ALIGN(addr);
27343 vma = find_vma(mm, addr);
27344 - if (end - len >= addr &&
27345 - (!vma || addr + len <= vma->vm_start))
27346 + if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27347 return addr;
27348 }
27349
27350 @@ -137,6 +141,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27351 info.high_limit = end;
27352 info.align_mask = filp ? get_align_mask() : 0;
27353 info.align_offset = pgoff << PAGE_SHIFT;
27354 + info.threadstack_offset = offset;
27355 return vm_unmapped_area(&info);
27356 }
27357
27358 @@ -149,6 +154,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27359 struct mm_struct *mm = current->mm;
27360 unsigned long addr = addr0;
27361 struct vm_unmapped_area_info info;
27362 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27363
27364 /* requested length too big for entire address space */
27365 if (len > TASK_SIZE)
27366 @@ -161,12 +167,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27367 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
27368 goto bottomup;
27369
27370 +#ifdef CONFIG_PAX_RANDMMAP
27371 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27372 +#endif
27373 +
27374 /* requesting a specific address */
27375 if (addr) {
27376 addr = PAGE_ALIGN(addr);
27377 vma = find_vma(mm, addr);
27378 - if (TASK_SIZE - len >= addr &&
27379 - (!vma || addr + len <= vma->vm_start))
27380 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27381 return addr;
27382 }
27383
27384 @@ -176,6 +185,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27385 info.high_limit = mm->mmap_base;
27386 info.align_mask = filp ? get_align_mask() : 0;
27387 info.align_offset = pgoff << PAGE_SHIFT;
27388 + info.threadstack_offset = offset;
27389 addr = vm_unmapped_area(&info);
27390 if (!(addr & ~PAGE_MASK))
27391 return addr;
27392 diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
27393 index 91a4496..bb87552 100644
27394 --- a/arch/x86/kernel/tboot.c
27395 +++ b/arch/x86/kernel/tboot.c
27396 @@ -221,7 +221,7 @@ static int tboot_setup_sleep(void)
27397
27398 void tboot_shutdown(u32 shutdown_type)
27399 {
27400 - void (*shutdown)(void);
27401 + void (* __noreturn shutdown)(void);
27402
27403 if (!tboot_enabled())
27404 return;
27405 @@ -243,7 +243,7 @@ void tboot_shutdown(u32 shutdown_type)
27406
27407 switch_to_tboot_pt();
27408
27409 - shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
27410 + shutdown = (void *)(unsigned long)tboot->shutdown_entry;
27411 shutdown();
27412
27413 /* should not reach here */
27414 @@ -310,7 +310,7 @@ static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
27415 return -ENODEV;
27416 }
27417
27418 -static atomic_t ap_wfs_count;
27419 +static atomic_unchecked_t ap_wfs_count;
27420
27421 static int tboot_wait_for_aps(int num_aps)
27422 {
27423 @@ -334,9 +334,9 @@ static int tboot_cpu_callback(struct notifier_block *nfb, unsigned long action,
27424 {
27425 switch (action) {
27426 case CPU_DYING:
27427 - atomic_inc(&ap_wfs_count);
27428 + atomic_inc_unchecked(&ap_wfs_count);
27429 if (num_online_cpus() == 1)
27430 - if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
27431 + if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
27432 return NOTIFY_BAD;
27433 break;
27434 }
27435 @@ -422,7 +422,7 @@ static __init int tboot_late_init(void)
27436
27437 tboot_create_trampoline();
27438
27439 - atomic_set(&ap_wfs_count, 0);
27440 + atomic_set_unchecked(&ap_wfs_count, 0);
27441 register_hotcpu_notifier(&tboot_cpu_notifier);
27442
27443 #ifdef CONFIG_DEBUG_FS
27444 diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
27445 index bf7ef5c..59d0ac9 100644
27446 --- a/arch/x86/kernel/time.c
27447 +++ b/arch/x86/kernel/time.c
27448 @@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
27449 {
27450 unsigned long pc = instruction_pointer(regs);
27451
27452 - if (!user_mode_vm(regs) && in_lock_functions(pc)) {
27453 + if (!user_mode(regs) && in_lock_functions(pc)) {
27454 #ifdef CONFIG_FRAME_POINTER
27455 - return *(unsigned long *)(regs->bp + sizeof(long));
27456 + return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
27457 #else
27458 unsigned long *sp =
27459 (unsigned long *)kernel_stack_pointer(regs);
27460 @@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
27461 * or above a saved flags. Eflags has bits 22-31 zero,
27462 * kernel addresses don't.
27463 */
27464 +
27465 +#ifdef CONFIG_PAX_KERNEXEC
27466 + return ktla_ktva(sp[0]);
27467 +#else
27468 if (sp[0] >> 22)
27469 return sp[0];
27470 if (sp[1] >> 22)
27471 return sp[1];
27472 #endif
27473 +
27474 +#endif
27475 }
27476 return pc;
27477 }
27478 diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
27479 index f7fec09..9991981 100644
27480 --- a/arch/x86/kernel/tls.c
27481 +++ b/arch/x86/kernel/tls.c
27482 @@ -84,6 +84,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
27483 if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
27484 return -EINVAL;
27485
27486 +#ifdef CONFIG_PAX_SEGMEXEC
27487 + if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
27488 + return -EINVAL;
27489 +#endif
27490 +
27491 set_tls_desc(p, idx, &info, 1);
27492
27493 return 0;
27494 @@ -200,7 +205,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
27495
27496 if (kbuf)
27497 info = kbuf;
27498 - else if (__copy_from_user(infobuf, ubuf, count))
27499 + else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
27500 return -EFAULT;
27501 else
27502 info = infobuf;
27503 diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
27504 index 1c113db..287b42e 100644
27505 --- a/arch/x86/kernel/tracepoint.c
27506 +++ b/arch/x86/kernel/tracepoint.c
27507 @@ -9,11 +9,11 @@
27508 #include <linux/atomic.h>
27509
27510 atomic_t trace_idt_ctr = ATOMIC_INIT(0);
27511 -struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27512 +const struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27513 (unsigned long) trace_idt_table };
27514
27515 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27516 -gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
27517 +gate_desc trace_idt_table[NR_VECTORS] __page_aligned_rodata;
27518
27519 static int trace_irq_vector_refcount;
27520 static DEFINE_MUTEX(irq_vector_mutex);
27521 diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
27522 index f73b5d4..0adcc9a 100644
27523 --- a/arch/x86/kernel/traps.c
27524 +++ b/arch/x86/kernel/traps.c
27525 @@ -66,7 +66,7 @@
27526 #include <asm/proto.h>
27527
27528 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27529 -gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
27530 +gate_desc debug_idt_table[NR_VECTORS] __page_aligned_rodata;
27531 #else
27532 #include <asm/processor-flags.h>
27533 #include <asm/setup.h>
27534 @@ -75,7 +75,7 @@ asmlinkage int system_call(void);
27535 #endif
27536
27537 /* Must be page-aligned because the real IDT is used in a fixmap. */
27538 -gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
27539 +gate_desc idt_table[NR_VECTORS] __page_aligned_rodata;
27540
27541 DECLARE_BITMAP(used_vectors, NR_VECTORS);
27542 EXPORT_SYMBOL_GPL(used_vectors);
27543 @@ -107,11 +107,11 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
27544 }
27545
27546 static int __kprobes
27547 -do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27548 +do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
27549 struct pt_regs *regs, long error_code)
27550 {
27551 #ifdef CONFIG_X86_32
27552 - if (regs->flags & X86_VM_MASK) {
27553 + if (v8086_mode(regs)) {
27554 /*
27555 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
27556 * On nmi (interrupt 2), do_trap should not be called.
27557 @@ -124,12 +124,24 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27558 return -1;
27559 }
27560 #endif
27561 - if (!user_mode(regs)) {
27562 + if (!user_mode_novm(regs)) {
27563 if (!fixup_exception(regs)) {
27564 tsk->thread.error_code = error_code;
27565 tsk->thread.trap_nr = trapnr;
27566 +
27567 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
27568 + if (trapnr == X86_TRAP_SS && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
27569 + str = "PAX: suspicious stack segment fault";
27570 +#endif
27571 +
27572 die(str, regs, error_code);
27573 }
27574 +
27575 +#ifdef CONFIG_PAX_REFCOUNT
27576 + if (trapnr == X86_TRAP_OF)
27577 + pax_report_refcount_overflow(regs);
27578 +#endif
27579 +
27580 return 0;
27581 }
27582
27583 @@ -137,7 +149,7 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27584 }
27585
27586 static void __kprobes
27587 -do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
27588 +do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
27589 long error_code, siginfo_t *info)
27590 {
27591 struct task_struct *tsk = current;
27592 @@ -161,7 +173,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
27593 if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
27594 printk_ratelimit()) {
27595 pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
27596 - tsk->comm, tsk->pid, str,
27597 + tsk->comm, task_pid_nr(tsk), str,
27598 regs->ip, regs->sp, error_code);
27599 print_vma_addr(" in ", regs->ip);
27600 pr_cont("\n");
27601 @@ -251,6 +263,11 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
27602 tsk->thread.error_code = error_code;
27603 tsk->thread.trap_nr = X86_TRAP_DF;
27604
27605 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
27606 + if ((unsigned long)tsk->stack - regs->sp <= PAGE_SIZE)
27607 + die("grsec: kernel stack overflow detected", regs, error_code);
27608 +#endif
27609 +
27610 #ifdef CONFIG_DOUBLEFAULT
27611 df_debug(regs, error_code);
27612 #endif
27613 @@ -273,7 +290,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
27614 conditional_sti(regs);
27615
27616 #ifdef CONFIG_X86_32
27617 - if (regs->flags & X86_VM_MASK) {
27618 + if (v8086_mode(regs)) {
27619 local_irq_enable();
27620 handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
27621 goto exit;
27622 @@ -281,18 +298,42 @@ do_general_protection(struct pt_regs *regs, long error_code)
27623 #endif
27624
27625 tsk = current;
27626 - if (!user_mode(regs)) {
27627 + if (!user_mode_novm(regs)) {
27628 if (fixup_exception(regs))
27629 goto exit;
27630
27631 tsk->thread.error_code = error_code;
27632 tsk->thread.trap_nr = X86_TRAP_GP;
27633 if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
27634 - X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
27635 + X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
27636 +
27637 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
27638 + if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
27639 + die("PAX: suspicious general protection fault", regs, error_code);
27640 + else
27641 +#endif
27642 +
27643 die("general protection fault", regs, error_code);
27644 + }
27645 goto exit;
27646 }
27647
27648 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
27649 + if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
27650 + struct mm_struct *mm = tsk->mm;
27651 + unsigned long limit;
27652 +
27653 + down_write(&mm->mmap_sem);
27654 + limit = mm->context.user_cs_limit;
27655 + if (limit < TASK_SIZE) {
27656 + track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
27657 + up_write(&mm->mmap_sem);
27658 + return;
27659 + }
27660 + up_write(&mm->mmap_sem);
27661 + }
27662 +#endif
27663 +
27664 tsk->thread.error_code = error_code;
27665 tsk->thread.trap_nr = X86_TRAP_GP;
27666
27667 @@ -453,7 +494,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
27668 /* It's safe to allow irq's after DR6 has been saved */
27669 preempt_conditional_sti(regs);
27670
27671 - if (regs->flags & X86_VM_MASK) {
27672 + if (v8086_mode(regs)) {
27673 handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
27674 X86_TRAP_DB);
27675 preempt_conditional_cli(regs);
27676 @@ -468,7 +509,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
27677 * We already checked v86 mode above, so we can check for kernel mode
27678 * by just checking the CPL of CS.
27679 */
27680 - if ((dr6 & DR_STEP) && !user_mode(regs)) {
27681 + if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
27682 tsk->thread.debugreg6 &= ~DR_STEP;
27683 set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
27684 regs->flags &= ~X86_EFLAGS_TF;
27685 @@ -500,7 +541,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr)
27686 return;
27687 conditional_sti(regs);
27688
27689 - if (!user_mode_vm(regs))
27690 + if (!user_mode(regs))
27691 {
27692 if (!fixup_exception(regs)) {
27693 task->thread.error_code = error_code;
27694 diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
27695 index 57e5ce1..20b0040 100644
27696 --- a/arch/x86/kernel/tsc.c
27697 +++ b/arch/x86/kernel/tsc.c
27698 @@ -150,7 +150,7 @@ static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
27699 */
27700 smp_wmb();
27701
27702 - ACCESS_ONCE(c2n->head) = data;
27703 + ACCESS_ONCE_RW(c2n->head) = data;
27704 }
27705
27706 /*
27707 diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
27708 index 2ed8459..7cf329f 100644
27709 --- a/arch/x86/kernel/uprobes.c
27710 +++ b/arch/x86/kernel/uprobes.c
27711 @@ -629,7 +629,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
27712 int ret = NOTIFY_DONE;
27713
27714 /* We are only interested in userspace traps */
27715 - if (regs && !user_mode_vm(regs))
27716 + if (regs && !user_mode(regs))
27717 return NOTIFY_DONE;
27718
27719 switch (val) {
27720 @@ -719,7 +719,7 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
27721
27722 if (ncopied != rasize) {
27723 pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, "
27724 - "%%ip=%#lx\n", current->pid, regs->sp, regs->ip);
27725 + "%%ip=%#lx\n", task_pid_nr(current), regs->sp, regs->ip);
27726
27727 force_sig_info(SIGSEGV, SEND_SIG_FORCED, current);
27728 }
27729 diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
27730 index b9242ba..50c5edd 100644
27731 --- a/arch/x86/kernel/verify_cpu.S
27732 +++ b/arch/x86/kernel/verify_cpu.S
27733 @@ -20,6 +20,7 @@
27734 * arch/x86/boot/compressed/head_64.S: Boot cpu verification
27735 * arch/x86/kernel/trampoline_64.S: secondary processor verification
27736 * arch/x86/kernel/head_32.S: processor startup
27737 + * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
27738 *
27739 * verify_cpu, returns the status of longmode and SSE in register %eax.
27740 * 0: Success 1: Failure
27741 diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
27742 index e8edcf5..27f9344 100644
27743 --- a/arch/x86/kernel/vm86_32.c
27744 +++ b/arch/x86/kernel/vm86_32.c
27745 @@ -44,6 +44,7 @@
27746 #include <linux/ptrace.h>
27747 #include <linux/audit.h>
27748 #include <linux/stddef.h>
27749 +#include <linux/grsecurity.h>
27750
27751 #include <asm/uaccess.h>
27752 #include <asm/io.h>
27753 @@ -150,7 +151,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
27754 do_exit(SIGSEGV);
27755 }
27756
27757 - tss = &per_cpu(init_tss, get_cpu());
27758 + tss = init_tss + get_cpu();
27759 current->thread.sp0 = current->thread.saved_sp0;
27760 current->thread.sysenter_cs = __KERNEL_CS;
27761 load_sp0(tss, &current->thread);
27762 @@ -214,6 +215,14 @@ SYSCALL_DEFINE1(vm86old, struct vm86_struct __user *, v86)
27763
27764 if (tsk->thread.saved_sp0)
27765 return -EPERM;
27766 +
27767 +#ifdef CONFIG_GRKERNSEC_VM86
27768 + if (!capable(CAP_SYS_RAWIO)) {
27769 + gr_handle_vm86();
27770 + return -EPERM;
27771 + }
27772 +#endif
27773 +
27774 tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
27775 offsetof(struct kernel_vm86_struct, vm86plus) -
27776 sizeof(info.regs));
27777 @@ -238,6 +247,13 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
27778 int tmp;
27779 struct vm86plus_struct __user *v86;
27780
27781 +#ifdef CONFIG_GRKERNSEC_VM86
27782 + if (!capable(CAP_SYS_RAWIO)) {
27783 + gr_handle_vm86();
27784 + return -EPERM;
27785 + }
27786 +#endif
27787 +
27788 tsk = current;
27789 switch (cmd) {
27790 case VM86_REQUEST_IRQ:
27791 @@ -318,7 +334,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
27792 tsk->thread.saved_fs = info->regs32->fs;
27793 tsk->thread.saved_gs = get_user_gs(info->regs32);
27794
27795 - tss = &per_cpu(init_tss, get_cpu());
27796 + tss = init_tss + get_cpu();
27797 tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
27798 if (cpu_has_sep)
27799 tsk->thread.sysenter_cs = 0;
27800 @@ -525,7 +541,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
27801 goto cannot_handle;
27802 if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
27803 goto cannot_handle;
27804 - intr_ptr = (unsigned long __user *) (i << 2);
27805 + intr_ptr = (__force unsigned long __user *) (i << 2);
27806 if (get_user(segoffs, intr_ptr))
27807 goto cannot_handle;
27808 if ((segoffs >> 16) == BIOSSEG)
27809 diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
27810 index 49edf2d..c0d1362 100644
27811 --- a/arch/x86/kernel/vmlinux.lds.S
27812 +++ b/arch/x86/kernel/vmlinux.lds.S
27813 @@ -26,6 +26,13 @@
27814 #include <asm/page_types.h>
27815 #include <asm/cache.h>
27816 #include <asm/boot.h>
27817 +#include <asm/segment.h>
27818 +
27819 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
27820 +#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
27821 +#else
27822 +#define __KERNEL_TEXT_OFFSET 0
27823 +#endif
27824
27825 #undef i386 /* in case the preprocessor is a 32bit one */
27826
27827 @@ -69,30 +76,43 @@ jiffies_64 = jiffies;
27828
27829 PHDRS {
27830 text PT_LOAD FLAGS(5); /* R_E */
27831 +#ifdef CONFIG_X86_32
27832 + module PT_LOAD FLAGS(5); /* R_E */
27833 +#endif
27834 +#ifdef CONFIG_XEN
27835 + rodata PT_LOAD FLAGS(5); /* R_E */
27836 +#else
27837 + rodata PT_LOAD FLAGS(4); /* R__ */
27838 +#endif
27839 data PT_LOAD FLAGS(6); /* RW_ */
27840 -#ifdef CONFIG_X86_64
27841 + init.begin PT_LOAD FLAGS(6); /* RW_ */
27842 #ifdef CONFIG_SMP
27843 percpu PT_LOAD FLAGS(6); /* RW_ */
27844 #endif
27845 + text.init PT_LOAD FLAGS(5); /* R_E */
27846 + text.exit PT_LOAD FLAGS(5); /* R_E */
27847 init PT_LOAD FLAGS(7); /* RWE */
27848 -#endif
27849 note PT_NOTE FLAGS(0); /* ___ */
27850 }
27851
27852 SECTIONS
27853 {
27854 #ifdef CONFIG_X86_32
27855 - . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
27856 - phys_startup_32 = startup_32 - LOAD_OFFSET;
27857 + . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
27858 #else
27859 - . = __START_KERNEL;
27860 - phys_startup_64 = startup_64 - LOAD_OFFSET;
27861 + . = __START_KERNEL;
27862 #endif
27863
27864 /* Text and read-only data */
27865 - .text : AT(ADDR(.text) - LOAD_OFFSET) {
27866 - _text = .;
27867 + .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
27868 /* bootstrapping code */
27869 +#ifdef CONFIG_X86_32
27870 + phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
27871 +#else
27872 + phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
27873 +#endif
27874 + __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
27875 + _text = .;
27876 HEAD_TEXT
27877 . = ALIGN(8);
27878 _stext = .;
27879 @@ -104,13 +124,47 @@ SECTIONS
27880 IRQENTRY_TEXT
27881 *(.fixup)
27882 *(.gnu.warning)
27883 - /* End of text section */
27884 - _etext = .;
27885 } :text = 0x9090
27886
27887 - NOTES :text :note
27888 + . += __KERNEL_TEXT_OFFSET;
27889
27890 - EXCEPTION_TABLE(16) :text = 0x9090
27891 +#ifdef CONFIG_X86_32
27892 + . = ALIGN(PAGE_SIZE);
27893 + .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
27894 +
27895 +#ifdef CONFIG_PAX_KERNEXEC
27896 + MODULES_EXEC_VADDR = .;
27897 + BYTE(0)
27898 + . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
27899 + . = ALIGN(HPAGE_SIZE) - 1;
27900 + MODULES_EXEC_END = .;
27901 +#endif
27902 +
27903 + } :module
27904 +#endif
27905 +
27906 + .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
27907 + /* End of text section */
27908 + BYTE(0)
27909 + _etext = . - __KERNEL_TEXT_OFFSET;
27910 + }
27911 +
27912 +#ifdef CONFIG_X86_32
27913 + . = ALIGN(PAGE_SIZE);
27914 + .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
27915 + . = ALIGN(PAGE_SIZE);
27916 + *(.empty_zero_page)
27917 + *(.initial_pg_fixmap)
27918 + *(.initial_pg_pmd)
27919 + *(.initial_page_table)
27920 + *(.swapper_pg_dir)
27921 + } :rodata
27922 +#endif
27923 +
27924 + . = ALIGN(PAGE_SIZE);
27925 + NOTES :rodata :note
27926 +
27927 + EXCEPTION_TABLE(16) :rodata
27928
27929 #if defined(CONFIG_DEBUG_RODATA)
27930 /* .text should occupy whole number of pages */
27931 @@ -122,16 +176,20 @@ SECTIONS
27932
27933 /* Data */
27934 .data : AT(ADDR(.data) - LOAD_OFFSET) {
27935 +
27936 +#ifdef CONFIG_PAX_KERNEXEC
27937 + . = ALIGN(HPAGE_SIZE);
27938 +#else
27939 + . = ALIGN(PAGE_SIZE);
27940 +#endif
27941 +
27942 /* Start of data section */
27943 _sdata = .;
27944
27945 /* init_task */
27946 INIT_TASK_DATA(THREAD_SIZE)
27947
27948 -#ifdef CONFIG_X86_32
27949 - /* 32 bit has nosave before _edata */
27950 NOSAVE_DATA
27951 -#endif
27952
27953 PAGE_ALIGNED_DATA(PAGE_SIZE)
27954
27955 @@ -174,12 +232,19 @@ SECTIONS
27956 . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
27957
27958 /* Init code and data - will be freed after init */
27959 - . = ALIGN(PAGE_SIZE);
27960 .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
27961 + BYTE(0)
27962 +
27963 +#ifdef CONFIG_PAX_KERNEXEC
27964 + . = ALIGN(HPAGE_SIZE);
27965 +#else
27966 + . = ALIGN(PAGE_SIZE);
27967 +#endif
27968 +
27969 __init_begin = .; /* paired with __init_end */
27970 - }
27971 + } :init.begin
27972
27973 -#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
27974 +#ifdef CONFIG_SMP
27975 /*
27976 * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the
27977 * output PHDR, so the next output section - .init.text - should
27978 @@ -188,12 +253,27 @@ SECTIONS
27979 PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu)
27980 #endif
27981
27982 - INIT_TEXT_SECTION(PAGE_SIZE)
27983 -#ifdef CONFIG_X86_64
27984 - :init
27985 -#endif
27986 + . = ALIGN(PAGE_SIZE);
27987 + init_begin = .;
27988 + .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
27989 + VMLINUX_SYMBOL(_sinittext) = .;
27990 + INIT_TEXT
27991 + VMLINUX_SYMBOL(_einittext) = .;
27992 + . = ALIGN(PAGE_SIZE);
27993 + } :text.init
27994
27995 - INIT_DATA_SECTION(16)
27996 + /*
27997 + * .exit.text is discard at runtime, not link time, to deal with
27998 + * references from .altinstructions and .eh_frame
27999 + */
28000 + .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
28001 + EXIT_TEXT
28002 + . = ALIGN(16);
28003 + } :text.exit
28004 + . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
28005 +
28006 + . = ALIGN(PAGE_SIZE);
28007 + INIT_DATA_SECTION(16) :init
28008
28009 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
28010 __x86_cpu_dev_start = .;
28011 @@ -264,19 +344,12 @@ SECTIONS
28012 }
28013
28014 . = ALIGN(8);
28015 - /*
28016 - * .exit.text is discard at runtime, not link time, to deal with
28017 - * references from .altinstructions and .eh_frame
28018 - */
28019 - .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
28020 - EXIT_TEXT
28021 - }
28022
28023 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
28024 EXIT_DATA
28025 }
28026
28027 -#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
28028 +#ifndef CONFIG_SMP
28029 PERCPU_SECTION(INTERNODE_CACHE_BYTES)
28030 #endif
28031
28032 @@ -295,16 +368,10 @@ SECTIONS
28033 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
28034 __smp_locks = .;
28035 *(.smp_locks)
28036 - . = ALIGN(PAGE_SIZE);
28037 __smp_locks_end = .;
28038 + . = ALIGN(PAGE_SIZE);
28039 }
28040
28041 -#ifdef CONFIG_X86_64
28042 - .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
28043 - NOSAVE_DATA
28044 - }
28045 -#endif
28046 -
28047 /* BSS */
28048 . = ALIGN(PAGE_SIZE);
28049 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
28050 @@ -320,6 +387,7 @@ SECTIONS
28051 __brk_base = .;
28052 . += 64 * 1024; /* 64k alignment slop space */
28053 *(.brk_reservation) /* areas brk users have reserved */
28054 + . = ALIGN(HPAGE_SIZE);
28055 __brk_limit = .;
28056 }
28057
28058 @@ -346,13 +414,12 @@ SECTIONS
28059 * for the boot processor.
28060 */
28061 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
28062 -INIT_PER_CPU(gdt_page);
28063 INIT_PER_CPU(irq_stack_union);
28064
28065 /*
28066 * Build-time check on the image size:
28067 */
28068 -. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
28069 +. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
28070 "kernel image bigger than KERNEL_IMAGE_SIZE");
28071
28072 #ifdef CONFIG_SMP
28073 diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
28074 index 8b3b3eb..9395aa9 100644
28075 --- a/arch/x86/kernel/vsyscall_64.c
28076 +++ b/arch/x86/kernel/vsyscall_64.c
28077 @@ -54,15 +54,13 @@
28078
28079 DEFINE_VVAR(int, vgetcpu_mode);
28080
28081 -static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
28082 +static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
28083
28084 static int __init vsyscall_setup(char *str)
28085 {
28086 if (str) {
28087 if (!strcmp("emulate", str))
28088 vsyscall_mode = EMULATE;
28089 - else if (!strcmp("native", str))
28090 - vsyscall_mode = NATIVE;
28091 else if (!strcmp("none", str))
28092 vsyscall_mode = NONE;
28093 else
28094 @@ -279,8 +277,7 @@ do_ret:
28095 return true;
28096
28097 sigsegv:
28098 - force_sig(SIGSEGV, current);
28099 - return true;
28100 + do_group_exit(SIGKILL);
28101 }
28102
28103 /*
28104 @@ -332,10 +329,7 @@ void __init map_vsyscall(void)
28105 unsigned long physaddr_vsyscall = __pa_symbol(&__vsyscall_page);
28106 unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page);
28107
28108 - __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall,
28109 - vsyscall_mode == NATIVE
28110 - ? PAGE_KERNEL_VSYSCALL
28111 - : PAGE_KERNEL_VVAR);
28112 + __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
28113 BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) !=
28114 (unsigned long)VSYSCALL_START);
28115
28116 diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
28117 index 04068192..4d75aa6 100644
28118 --- a/arch/x86/kernel/x8664_ksyms_64.c
28119 +++ b/arch/x86/kernel/x8664_ksyms_64.c
28120 @@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
28121 EXPORT_SYMBOL(copy_user_generic_unrolled);
28122 EXPORT_SYMBOL(copy_user_enhanced_fast_string);
28123 EXPORT_SYMBOL(__copy_user_nocache);
28124 -EXPORT_SYMBOL(_copy_from_user);
28125 -EXPORT_SYMBOL(_copy_to_user);
28126
28127 EXPORT_SYMBOL(copy_page);
28128 EXPORT_SYMBOL(clear_page);
28129 @@ -73,3 +71,7 @@ EXPORT_SYMBOL(___preempt_schedule);
28130 EXPORT_SYMBOL(___preempt_schedule_context);
28131 #endif
28132 #endif
28133 +
28134 +#ifdef CONFIG_PAX_PER_CPU_PGD
28135 +EXPORT_SYMBOL(cpu_pgd);
28136 +#endif
28137 diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
28138 index e48b674..a451dd9 100644
28139 --- a/arch/x86/kernel/x86_init.c
28140 +++ b/arch/x86/kernel/x86_init.c
28141 @@ -93,7 +93,7 @@ struct x86_cpuinit_ops x86_cpuinit = {
28142 static void default_nmi_init(void) { };
28143 static int default_i8042_detect(void) { return 1; };
28144
28145 -struct x86_platform_ops x86_platform = {
28146 +struct x86_platform_ops x86_platform __read_only = {
28147 .calibrate_tsc = native_calibrate_tsc,
28148 .get_wallclock = mach_get_cmos_time,
28149 .set_wallclock = mach_set_rtc_mmss,
28150 @@ -109,7 +109,7 @@ struct x86_platform_ops x86_platform = {
28151 EXPORT_SYMBOL_GPL(x86_platform);
28152
28153 #if defined(CONFIG_PCI_MSI)
28154 -struct x86_msi_ops x86_msi = {
28155 +struct x86_msi_ops x86_msi __read_only = {
28156 .setup_msi_irqs = native_setup_msi_irqs,
28157 .compose_msi_msg = native_compose_msi_msg,
28158 .teardown_msi_irq = native_teardown_msi_irq,
28159 @@ -150,7 +150,7 @@ u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
28160 }
28161 #endif
28162
28163 -struct x86_io_apic_ops x86_io_apic_ops = {
28164 +struct x86_io_apic_ops x86_io_apic_ops __read_only = {
28165 .init = native_io_apic_init_mappings,
28166 .read = native_io_apic_read,
28167 .write = native_io_apic_write,
28168 diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
28169 index a4b451c..8dfe1ad 100644
28170 --- a/arch/x86/kernel/xsave.c
28171 +++ b/arch/x86/kernel/xsave.c
28172 @@ -164,18 +164,18 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28173
28174 /* Setup the bytes not touched by the [f]xsave and reserved for SW. */
28175 sw_bytes = ia32_frame ? &fx_sw_reserved_ia32 : &fx_sw_reserved;
28176 - err = __copy_to_user(&x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28177 + err = __copy_to_user(x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28178
28179 if (!use_xsave())
28180 return err;
28181
28182 - err |= __put_user(FP_XSTATE_MAGIC2, (__u32 *)(buf + xstate_size));
28183 + err |= __put_user(FP_XSTATE_MAGIC2, (__u32 __user *)(buf + xstate_size));
28184
28185 /*
28186 * Read the xstate_bv which we copied (directly from the cpu or
28187 * from the state in task struct) to the user buffers.
28188 */
28189 - err |= __get_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28190 + err |= __get_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28191
28192 /*
28193 * For legacy compatible, we always set FP/SSE bits in the bit
28194 @@ -190,7 +190,7 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28195 */
28196 xstate_bv |= XSTATE_FPSSE;
28197
28198 - err |= __put_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28199 + err |= __put_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28200
28201 return err;
28202 }
28203 @@ -199,6 +199,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
28204 {
28205 int err;
28206
28207 + buf = (struct xsave_struct __user *)____m(buf);
28208 if (use_xsave())
28209 err = xsave_user(buf);
28210 else if (use_fxsr())
28211 @@ -311,6 +312,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
28212 */
28213 static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
28214 {
28215 + buf = (void __user *)____m(buf);
28216 if (use_xsave()) {
28217 if ((unsigned long)buf % 64 || fx_only) {
28218 u64 init_bv = pcntxt_mask & ~XSTATE_FPSSE;
28219 diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
28220 index f47a104..5ce59a8 100644
28221 --- a/arch/x86/kvm/cpuid.c
28222 +++ b/arch/x86/kvm/cpuid.c
28223 @@ -166,15 +166,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
28224 struct kvm_cpuid2 *cpuid,
28225 struct kvm_cpuid_entry2 __user *entries)
28226 {
28227 - int r;
28228 + int r, i;
28229
28230 r = -E2BIG;
28231 if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
28232 goto out;
28233 r = -EFAULT;
28234 - if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
28235 - cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28236 + if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28237 goto out;
28238 + for (i = 0; i < cpuid->nent; ++i) {
28239 + struct kvm_cpuid_entry2 cpuid_entry;
28240 + if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
28241 + goto out;
28242 + vcpu->arch.cpuid_entries[i] = cpuid_entry;
28243 + }
28244 vcpu->arch.cpuid_nent = cpuid->nent;
28245 kvm_apic_set_version(vcpu);
28246 kvm_x86_ops->cpuid_update(vcpu);
28247 @@ -189,15 +194,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
28248 struct kvm_cpuid2 *cpuid,
28249 struct kvm_cpuid_entry2 __user *entries)
28250 {
28251 - int r;
28252 + int r, i;
28253
28254 r = -E2BIG;
28255 if (cpuid->nent < vcpu->arch.cpuid_nent)
28256 goto out;
28257 r = -EFAULT;
28258 - if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
28259 - vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28260 + if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28261 goto out;
28262 + for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
28263 + struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
28264 + if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
28265 + goto out;
28266 + }
28267 return 0;
28268
28269 out:
28270 diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
28271 index 0069118..c28ec0a 100644
28272 --- a/arch/x86/kvm/lapic.c
28273 +++ b/arch/x86/kvm/lapic.c
28274 @@ -55,7 +55,7 @@
28275 #define APIC_BUS_CYCLE_NS 1
28276
28277 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
28278 -#define apic_debug(fmt, arg...)
28279 +#define apic_debug(fmt, arg...) do {} while (0)
28280
28281 #define APIC_LVT_NUM 6
28282 /* 14 is the version for Xeon and Pentium 8.4.8*/
28283 diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
28284 index 123efd3..ad7726e 100644
28285 --- a/arch/x86/kvm/paging_tmpl.h
28286 +++ b/arch/x86/kvm/paging_tmpl.h
28287 @@ -331,7 +331,7 @@ retry_walk:
28288 if (unlikely(kvm_is_error_hva(host_addr)))
28289 goto error;
28290
28291 - ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
28292 + ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
28293 if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
28294 goto error;
28295 walker->ptep_user[walker->level - 1] = ptep_user;
28296 diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
28297 index 7f4f9c2..67b1db0 100644
28298 --- a/arch/x86/kvm/svm.c
28299 +++ b/arch/x86/kvm/svm.c
28300 @@ -3535,7 +3535,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
28301 int cpu = raw_smp_processor_id();
28302
28303 struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
28304 +
28305 + pax_open_kernel();
28306 sd->tss_desc->type = 9; /* available 32/64-bit TSS */
28307 + pax_close_kernel();
28308 +
28309 load_TR_desc();
28310 }
28311
28312 @@ -3936,6 +3940,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
28313 #endif
28314 #endif
28315
28316 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
28317 + __set_fs(current_thread_info()->addr_limit);
28318 +#endif
28319 +
28320 reload_tss(vcpu);
28321
28322 local_irq_disable();
28323 diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
28324 index 138ceff..2e584f0 100644
28325 --- a/arch/x86/kvm/vmx.c
28326 +++ b/arch/x86/kvm/vmx.c
28327 @@ -1339,12 +1339,12 @@ static void vmcs_write64(unsigned long field, u64 value)
28328 #endif
28329 }
28330
28331 -static void vmcs_clear_bits(unsigned long field, u32 mask)
28332 +static void vmcs_clear_bits(unsigned long field, unsigned long mask)
28333 {
28334 vmcs_writel(field, vmcs_readl(field) & ~mask);
28335 }
28336
28337 -static void vmcs_set_bits(unsigned long field, u32 mask)
28338 +static void vmcs_set_bits(unsigned long field, unsigned long mask)
28339 {
28340 vmcs_writel(field, vmcs_readl(field) | mask);
28341 }
28342 @@ -1604,7 +1604,11 @@ static void reload_tss(void)
28343 struct desc_struct *descs;
28344
28345 descs = (void *)gdt->address;
28346 +
28347 + pax_open_kernel();
28348 descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
28349 + pax_close_kernel();
28350 +
28351 load_TR_desc();
28352 }
28353
28354 @@ -1832,6 +1836,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
28355 vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
28356 vmcs_writel(HOST_GDTR_BASE, gdt->address); /* 22.2.4 */
28357
28358 +#ifdef CONFIG_PAX_PER_CPU_PGD
28359 + vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28360 +#endif
28361 +
28362 rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
28363 vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
28364 vmx->loaded_vmcs->cpu = cpu;
28365 @@ -2121,7 +2129,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
28366 * reads and returns guest's timestamp counter "register"
28367 * guest_tsc = host_tsc + tsc_offset -- 21.3
28368 */
28369 -static u64 guest_read_tsc(void)
28370 +static u64 __intentional_overflow(-1) guest_read_tsc(void)
28371 {
28372 u64 host_tsc, tsc_offset;
28373
28374 @@ -3093,8 +3101,11 @@ static __init int hardware_setup(void)
28375 if (!cpu_has_vmx_flexpriority())
28376 flexpriority_enabled = 0;
28377
28378 - if (!cpu_has_vmx_tpr_shadow())
28379 - kvm_x86_ops->update_cr8_intercept = NULL;
28380 + if (!cpu_has_vmx_tpr_shadow()) {
28381 + pax_open_kernel();
28382 + *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28383 + pax_close_kernel();
28384 + }
28385
28386 if (enable_ept && !cpu_has_vmx_ept_2m_page())
28387 kvm_disable_largepages();
28388 @@ -3105,13 +3116,15 @@ static __init int hardware_setup(void)
28389 if (!cpu_has_vmx_apicv())
28390 enable_apicv = 0;
28391
28392 + pax_open_kernel();
28393 if (enable_apicv)
28394 - kvm_x86_ops->update_cr8_intercept = NULL;
28395 + *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28396 else {
28397 - kvm_x86_ops->hwapic_irr_update = NULL;
28398 - kvm_x86_ops->deliver_posted_interrupt = NULL;
28399 - kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28400 + *(void **)&kvm_x86_ops->hwapic_irr_update = NULL;
28401 + *(void **)&kvm_x86_ops->deliver_posted_interrupt = NULL;
28402 + *(void **)&kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28403 }
28404 + pax_close_kernel();
28405
28406 if (nested)
28407 nested_vmx_setup_ctls_msrs();
28408 @@ -4235,7 +4248,10 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28409
28410 vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS); /* 22.2.3 */
28411 vmcs_writel(HOST_CR4, read_cr4()); /* 22.2.3, 22.2.5 */
28412 +
28413 +#ifndef CONFIG_PAX_PER_CPU_PGD
28414 vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28415 +#endif
28416
28417 vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS); /* 22.2.4 */
28418 #ifdef CONFIG_X86_64
28419 @@ -4257,7 +4273,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28420 vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
28421 vmx->host_idt_base = dt.address;
28422
28423 - vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
28424 + vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
28425
28426 rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
28427 vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
28428 @@ -7333,6 +7349,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28429 "jmp 2f \n\t"
28430 "1: " __ex(ASM_VMX_VMRESUME) "\n\t"
28431 "2: "
28432 +
28433 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28434 + "ljmp %[cs],$3f\n\t"
28435 + "3: "
28436 +#endif
28437 +
28438 /* Save guest registers, load host registers, keep flags */
28439 "mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
28440 "pop %0 \n\t"
28441 @@ -7385,6 +7407,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28442 #endif
28443 [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
28444 [wordsize]"i"(sizeof(ulong))
28445 +
28446 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28447 + ,[cs]"i"(__KERNEL_CS)
28448 +#endif
28449 +
28450 : "cc", "memory"
28451 #ifdef CONFIG_X86_64
28452 , "rax", "rbx", "rdi", "rsi"
28453 @@ -7398,7 +7425,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28454 if (debugctlmsr)
28455 update_debugctlmsr(debugctlmsr);
28456
28457 -#ifndef CONFIG_X86_64
28458 +#ifdef CONFIG_X86_32
28459 /*
28460 * The sysexit path does not restore ds/es, so we must set them to
28461 * a reasonable value ourselves.
28462 @@ -7407,8 +7434,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28463 * may be executed in interrupt context, which saves and restore segments
28464 * around it, nullifying its effect.
28465 */
28466 - loadsegment(ds, __USER_DS);
28467 - loadsegment(es, __USER_DS);
28468 + loadsegment(ds, __KERNEL_DS);
28469 + loadsegment(es, __KERNEL_DS);
28470 + loadsegment(ss, __KERNEL_DS);
28471 +
28472 +#ifdef CONFIG_PAX_KERNEXEC
28473 + loadsegment(fs, __KERNEL_PERCPU);
28474 +#endif
28475 +
28476 +#ifdef CONFIG_PAX_MEMORY_UDEREF
28477 + __set_fs(current_thread_info()->addr_limit);
28478 +#endif
28479 +
28480 #endif
28481
28482 vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
28483 diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
28484 index 5521f7c..691b7a3 100644
28485 --- a/arch/x86/kvm/x86.c
28486 +++ b/arch/x86/kvm/x86.c
28487 @@ -1822,8 +1822,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
28488 {
28489 struct kvm *kvm = vcpu->kvm;
28490 int lm = is_long_mode(vcpu);
28491 - u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
28492 - : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
28493 + u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
28494 + : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
28495 u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
28496 : kvm->arch.xen_hvm_config.blob_size_32;
28497 u32 page_num = data & ~PAGE_MASK;
28498 @@ -2738,6 +2738,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
28499 if (n < msr_list.nmsrs)
28500 goto out;
28501 r = -EFAULT;
28502 + if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
28503 + goto out;
28504 if (copy_to_user(user_msr_list->indices, &msrs_to_save,
28505 num_msrs_to_save * sizeof(u32)))
28506 goto out;
28507 @@ -5574,7 +5576,7 @@ static struct notifier_block pvclock_gtod_notifier = {
28508 };
28509 #endif
28510
28511 -int kvm_arch_init(void *opaque)
28512 +int kvm_arch_init(const void *opaque)
28513 {
28514 int r;
28515 struct kvm_x86_ops *ops = opaque;
28516 diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
28517 index aae9413..d11e829 100644
28518 --- a/arch/x86/lguest/boot.c
28519 +++ b/arch/x86/lguest/boot.c
28520 @@ -1206,9 +1206,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
28521 * Rebooting also tells the Host we're finished, but the RESTART flag tells the
28522 * Launcher to reboot us.
28523 */
28524 -static void lguest_restart(char *reason)
28525 +static __noreturn void lguest_restart(char *reason)
28526 {
28527 hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
28528 + BUG();
28529 }
28530
28531 /*G:050
28532 diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
28533 index 00933d5..3a64af9 100644
28534 --- a/arch/x86/lib/atomic64_386_32.S
28535 +++ b/arch/x86/lib/atomic64_386_32.S
28536 @@ -48,6 +48,10 @@ BEGIN(read)
28537 movl (v), %eax
28538 movl 4(v), %edx
28539 RET_ENDP
28540 +BEGIN(read_unchecked)
28541 + movl (v), %eax
28542 + movl 4(v), %edx
28543 +RET_ENDP
28544 #undef v
28545
28546 #define v %esi
28547 @@ -55,6 +59,10 @@ BEGIN(set)
28548 movl %ebx, (v)
28549 movl %ecx, 4(v)
28550 RET_ENDP
28551 +BEGIN(set_unchecked)
28552 + movl %ebx, (v)
28553 + movl %ecx, 4(v)
28554 +RET_ENDP
28555 #undef v
28556
28557 #define v %esi
28558 @@ -70,6 +78,20 @@ RET_ENDP
28559 BEGIN(add)
28560 addl %eax, (v)
28561 adcl %edx, 4(v)
28562 +
28563 +#ifdef CONFIG_PAX_REFCOUNT
28564 + jno 0f
28565 + subl %eax, (v)
28566 + sbbl %edx, 4(v)
28567 + int $4
28568 +0:
28569 + _ASM_EXTABLE(0b, 0b)
28570 +#endif
28571 +
28572 +RET_ENDP
28573 +BEGIN(add_unchecked)
28574 + addl %eax, (v)
28575 + adcl %edx, 4(v)
28576 RET_ENDP
28577 #undef v
28578
28579 @@ -77,6 +99,24 @@ RET_ENDP
28580 BEGIN(add_return)
28581 addl (v), %eax
28582 adcl 4(v), %edx
28583 +
28584 +#ifdef CONFIG_PAX_REFCOUNT
28585 + into
28586 +1234:
28587 + _ASM_EXTABLE(1234b, 2f)
28588 +#endif
28589 +
28590 + movl %eax, (v)
28591 + movl %edx, 4(v)
28592 +
28593 +#ifdef CONFIG_PAX_REFCOUNT
28594 +2:
28595 +#endif
28596 +
28597 +RET_ENDP
28598 +BEGIN(add_return_unchecked)
28599 + addl (v), %eax
28600 + adcl 4(v), %edx
28601 movl %eax, (v)
28602 movl %edx, 4(v)
28603 RET_ENDP
28604 @@ -86,6 +126,20 @@ RET_ENDP
28605 BEGIN(sub)
28606 subl %eax, (v)
28607 sbbl %edx, 4(v)
28608 +
28609 +#ifdef CONFIG_PAX_REFCOUNT
28610 + jno 0f
28611 + addl %eax, (v)
28612 + adcl %edx, 4(v)
28613 + int $4
28614 +0:
28615 + _ASM_EXTABLE(0b, 0b)
28616 +#endif
28617 +
28618 +RET_ENDP
28619 +BEGIN(sub_unchecked)
28620 + subl %eax, (v)
28621 + sbbl %edx, 4(v)
28622 RET_ENDP
28623 #undef v
28624
28625 @@ -96,6 +150,27 @@ BEGIN(sub_return)
28626 sbbl $0, %edx
28627 addl (v), %eax
28628 adcl 4(v), %edx
28629 +
28630 +#ifdef CONFIG_PAX_REFCOUNT
28631 + into
28632 +1234:
28633 + _ASM_EXTABLE(1234b, 2f)
28634 +#endif
28635 +
28636 + movl %eax, (v)
28637 + movl %edx, 4(v)
28638 +
28639 +#ifdef CONFIG_PAX_REFCOUNT
28640 +2:
28641 +#endif
28642 +
28643 +RET_ENDP
28644 +BEGIN(sub_return_unchecked)
28645 + negl %edx
28646 + negl %eax
28647 + sbbl $0, %edx
28648 + addl (v), %eax
28649 + adcl 4(v), %edx
28650 movl %eax, (v)
28651 movl %edx, 4(v)
28652 RET_ENDP
28653 @@ -105,6 +180,20 @@ RET_ENDP
28654 BEGIN(inc)
28655 addl $1, (v)
28656 adcl $0, 4(v)
28657 +
28658 +#ifdef CONFIG_PAX_REFCOUNT
28659 + jno 0f
28660 + subl $1, (v)
28661 + sbbl $0, 4(v)
28662 + int $4
28663 +0:
28664 + _ASM_EXTABLE(0b, 0b)
28665 +#endif
28666 +
28667 +RET_ENDP
28668 +BEGIN(inc_unchecked)
28669 + addl $1, (v)
28670 + adcl $0, 4(v)
28671 RET_ENDP
28672 #undef v
28673
28674 @@ -114,6 +203,26 @@ BEGIN(inc_return)
28675 movl 4(v), %edx
28676 addl $1, %eax
28677 adcl $0, %edx
28678 +
28679 +#ifdef CONFIG_PAX_REFCOUNT
28680 + into
28681 +1234:
28682 + _ASM_EXTABLE(1234b, 2f)
28683 +#endif
28684 +
28685 + movl %eax, (v)
28686 + movl %edx, 4(v)
28687 +
28688 +#ifdef CONFIG_PAX_REFCOUNT
28689 +2:
28690 +#endif
28691 +
28692 +RET_ENDP
28693 +BEGIN(inc_return_unchecked)
28694 + movl (v), %eax
28695 + movl 4(v), %edx
28696 + addl $1, %eax
28697 + adcl $0, %edx
28698 movl %eax, (v)
28699 movl %edx, 4(v)
28700 RET_ENDP
28701 @@ -123,6 +232,20 @@ RET_ENDP
28702 BEGIN(dec)
28703 subl $1, (v)
28704 sbbl $0, 4(v)
28705 +
28706 +#ifdef CONFIG_PAX_REFCOUNT
28707 + jno 0f
28708 + addl $1, (v)
28709 + adcl $0, 4(v)
28710 + int $4
28711 +0:
28712 + _ASM_EXTABLE(0b, 0b)
28713 +#endif
28714 +
28715 +RET_ENDP
28716 +BEGIN(dec_unchecked)
28717 + subl $1, (v)
28718 + sbbl $0, 4(v)
28719 RET_ENDP
28720 #undef v
28721
28722 @@ -132,6 +255,26 @@ BEGIN(dec_return)
28723 movl 4(v), %edx
28724 subl $1, %eax
28725 sbbl $0, %edx
28726 +
28727 +#ifdef CONFIG_PAX_REFCOUNT
28728 + into
28729 +1234:
28730 + _ASM_EXTABLE(1234b, 2f)
28731 +#endif
28732 +
28733 + movl %eax, (v)
28734 + movl %edx, 4(v)
28735 +
28736 +#ifdef CONFIG_PAX_REFCOUNT
28737 +2:
28738 +#endif
28739 +
28740 +RET_ENDP
28741 +BEGIN(dec_return_unchecked)
28742 + movl (v), %eax
28743 + movl 4(v), %edx
28744 + subl $1, %eax
28745 + sbbl $0, %edx
28746 movl %eax, (v)
28747 movl %edx, 4(v)
28748 RET_ENDP
28749 @@ -143,6 +286,13 @@ BEGIN(add_unless)
28750 adcl %edx, %edi
28751 addl (v), %eax
28752 adcl 4(v), %edx
28753 +
28754 +#ifdef CONFIG_PAX_REFCOUNT
28755 + into
28756 +1234:
28757 + _ASM_EXTABLE(1234b, 2f)
28758 +#endif
28759 +
28760 cmpl %eax, %ecx
28761 je 3f
28762 1:
28763 @@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
28764 1:
28765 addl $1, %eax
28766 adcl $0, %edx
28767 +
28768 +#ifdef CONFIG_PAX_REFCOUNT
28769 + into
28770 +1234:
28771 + _ASM_EXTABLE(1234b, 2f)
28772 +#endif
28773 +
28774 movl %eax, (v)
28775 movl %edx, 4(v)
28776 movl $1, %eax
28777 @@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
28778 movl 4(v), %edx
28779 subl $1, %eax
28780 sbbl $0, %edx
28781 +
28782 +#ifdef CONFIG_PAX_REFCOUNT
28783 + into
28784 +1234:
28785 + _ASM_EXTABLE(1234b, 1f)
28786 +#endif
28787 +
28788 js 1f
28789 movl %eax, (v)
28790 movl %edx, 4(v)
28791 diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
28792 index f5cc9eb..51fa319 100644
28793 --- a/arch/x86/lib/atomic64_cx8_32.S
28794 +++ b/arch/x86/lib/atomic64_cx8_32.S
28795 @@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
28796 CFI_STARTPROC
28797
28798 read64 %ecx
28799 + pax_force_retaddr
28800 ret
28801 CFI_ENDPROC
28802 ENDPROC(atomic64_read_cx8)
28803
28804 +ENTRY(atomic64_read_unchecked_cx8)
28805 + CFI_STARTPROC
28806 +
28807 + read64 %ecx
28808 + pax_force_retaddr
28809 + ret
28810 + CFI_ENDPROC
28811 +ENDPROC(atomic64_read_unchecked_cx8)
28812 +
28813 ENTRY(atomic64_set_cx8)
28814 CFI_STARTPROC
28815
28816 @@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
28817 cmpxchg8b (%esi)
28818 jne 1b
28819
28820 + pax_force_retaddr
28821 ret
28822 CFI_ENDPROC
28823 ENDPROC(atomic64_set_cx8)
28824
28825 +ENTRY(atomic64_set_unchecked_cx8)
28826 + CFI_STARTPROC
28827 +
28828 +1:
28829 +/* we don't need LOCK_PREFIX since aligned 64-bit writes
28830 + * are atomic on 586 and newer */
28831 + cmpxchg8b (%esi)
28832 + jne 1b
28833 +
28834 + pax_force_retaddr
28835 + ret
28836 + CFI_ENDPROC
28837 +ENDPROC(atomic64_set_unchecked_cx8)
28838 +
28839 ENTRY(atomic64_xchg_cx8)
28840 CFI_STARTPROC
28841
28842 @@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
28843 cmpxchg8b (%esi)
28844 jne 1b
28845
28846 + pax_force_retaddr
28847 ret
28848 CFI_ENDPROC
28849 ENDPROC(atomic64_xchg_cx8)
28850
28851 -.macro addsub_return func ins insc
28852 -ENTRY(atomic64_\func\()_return_cx8)
28853 +.macro addsub_return func ins insc unchecked=""
28854 +ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
28855 CFI_STARTPROC
28856 SAVE ebp
28857 SAVE ebx
28858 @@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
28859 movl %edx, %ecx
28860 \ins\()l %esi, %ebx
28861 \insc\()l %edi, %ecx
28862 +
28863 +.ifb \unchecked
28864 +#ifdef CONFIG_PAX_REFCOUNT
28865 + into
28866 +2:
28867 + _ASM_EXTABLE(2b, 3f)
28868 +#endif
28869 +.endif
28870 +
28871 LOCK_PREFIX
28872 cmpxchg8b (%ebp)
28873 jne 1b
28874 -
28875 -10:
28876 movl %ebx, %eax
28877 movl %ecx, %edx
28878 +
28879 +.ifb \unchecked
28880 +#ifdef CONFIG_PAX_REFCOUNT
28881 +3:
28882 +#endif
28883 +.endif
28884 +
28885 RESTORE edi
28886 RESTORE esi
28887 RESTORE ebx
28888 RESTORE ebp
28889 + pax_force_retaddr
28890 ret
28891 CFI_ENDPROC
28892 -ENDPROC(atomic64_\func\()_return_cx8)
28893 +ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
28894 .endm
28895
28896 addsub_return add add adc
28897 addsub_return sub sub sbb
28898 +addsub_return add add adc _unchecked
28899 +addsub_return sub sub sbb _unchecked
28900
28901 -.macro incdec_return func ins insc
28902 -ENTRY(atomic64_\func\()_return_cx8)
28903 +.macro incdec_return func ins insc unchecked=""
28904 +ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
28905 CFI_STARTPROC
28906 SAVE ebx
28907
28908 @@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
28909 movl %edx, %ecx
28910 \ins\()l $1, %ebx
28911 \insc\()l $0, %ecx
28912 +
28913 +.ifb \unchecked
28914 +#ifdef CONFIG_PAX_REFCOUNT
28915 + into
28916 +2:
28917 + _ASM_EXTABLE(2b, 3f)
28918 +#endif
28919 +.endif
28920 +
28921 LOCK_PREFIX
28922 cmpxchg8b (%esi)
28923 jne 1b
28924
28925 -10:
28926 movl %ebx, %eax
28927 movl %ecx, %edx
28928 +
28929 +.ifb \unchecked
28930 +#ifdef CONFIG_PAX_REFCOUNT
28931 +3:
28932 +#endif
28933 +.endif
28934 +
28935 RESTORE ebx
28936 + pax_force_retaddr
28937 ret
28938 CFI_ENDPROC
28939 -ENDPROC(atomic64_\func\()_return_cx8)
28940 +ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
28941 .endm
28942
28943 incdec_return inc add adc
28944 incdec_return dec sub sbb
28945 +incdec_return inc add adc _unchecked
28946 +incdec_return dec sub sbb _unchecked
28947
28948 ENTRY(atomic64_dec_if_positive_cx8)
28949 CFI_STARTPROC
28950 @@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
28951 movl %edx, %ecx
28952 subl $1, %ebx
28953 sbb $0, %ecx
28954 +
28955 +#ifdef CONFIG_PAX_REFCOUNT
28956 + into
28957 +1234:
28958 + _ASM_EXTABLE(1234b, 2f)
28959 +#endif
28960 +
28961 js 2f
28962 LOCK_PREFIX
28963 cmpxchg8b (%esi)
28964 @@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
28965 movl %ebx, %eax
28966 movl %ecx, %edx
28967 RESTORE ebx
28968 + pax_force_retaddr
28969 ret
28970 CFI_ENDPROC
28971 ENDPROC(atomic64_dec_if_positive_cx8)
28972 @@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
28973 movl %edx, %ecx
28974 addl %ebp, %ebx
28975 adcl %edi, %ecx
28976 +
28977 +#ifdef CONFIG_PAX_REFCOUNT
28978 + into
28979 +1234:
28980 + _ASM_EXTABLE(1234b, 3f)
28981 +#endif
28982 +
28983 LOCK_PREFIX
28984 cmpxchg8b (%esi)
28985 jne 1b
28986 @@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
28987 CFI_ADJUST_CFA_OFFSET -8
28988 RESTORE ebx
28989 RESTORE ebp
28990 + pax_force_retaddr
28991 ret
28992 4:
28993 cmpl %edx, 4(%esp)
28994 @@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
28995 xorl %ecx, %ecx
28996 addl $1, %ebx
28997 adcl %edx, %ecx
28998 +
28999 +#ifdef CONFIG_PAX_REFCOUNT
29000 + into
29001 +1234:
29002 + _ASM_EXTABLE(1234b, 3f)
29003 +#endif
29004 +
29005 LOCK_PREFIX
29006 cmpxchg8b (%esi)
29007 jne 1b
29008 @@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
29009 movl $1, %eax
29010 3:
29011 RESTORE ebx
29012 + pax_force_retaddr
29013 ret
29014 CFI_ENDPROC
29015 ENDPROC(atomic64_inc_not_zero_cx8)
29016 diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
29017 index e78b8ee..7e173a8 100644
29018 --- a/arch/x86/lib/checksum_32.S
29019 +++ b/arch/x86/lib/checksum_32.S
29020 @@ -29,7 +29,8 @@
29021 #include <asm/dwarf2.h>
29022 #include <asm/errno.h>
29023 #include <asm/asm.h>
29024 -
29025 +#include <asm/segment.h>
29026 +
29027 /*
29028 * computes a partial checksum, e.g. for TCP/UDP fragments
29029 */
29030 @@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
29031
29032 #define ARGBASE 16
29033 #define FP 12
29034 -
29035 -ENTRY(csum_partial_copy_generic)
29036 +
29037 +ENTRY(csum_partial_copy_generic_to_user)
29038 CFI_STARTPROC
29039 +
29040 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29041 + pushl_cfi %gs
29042 + popl_cfi %es
29043 + jmp csum_partial_copy_generic
29044 +#endif
29045 +
29046 +ENTRY(csum_partial_copy_generic_from_user)
29047 +
29048 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29049 + pushl_cfi %gs
29050 + popl_cfi %ds
29051 +#endif
29052 +
29053 +ENTRY(csum_partial_copy_generic)
29054 subl $4,%esp
29055 CFI_ADJUST_CFA_OFFSET 4
29056 pushl_cfi %edi
29057 @@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
29058 jmp 4f
29059 SRC(1: movw (%esi), %bx )
29060 addl $2, %esi
29061 -DST( movw %bx, (%edi) )
29062 +DST( movw %bx, %es:(%edi) )
29063 addl $2, %edi
29064 addw %bx, %ax
29065 adcl $0, %eax
29066 @@ -329,30 +345,30 @@ DST( movw %bx, (%edi) )
29067 SRC(1: movl (%esi), %ebx )
29068 SRC( movl 4(%esi), %edx )
29069 adcl %ebx, %eax
29070 -DST( movl %ebx, (%edi) )
29071 +DST( movl %ebx, %es:(%edi) )
29072 adcl %edx, %eax
29073 -DST( movl %edx, 4(%edi) )
29074 +DST( movl %edx, %es:4(%edi) )
29075
29076 SRC( movl 8(%esi), %ebx )
29077 SRC( movl 12(%esi), %edx )
29078 adcl %ebx, %eax
29079 -DST( movl %ebx, 8(%edi) )
29080 +DST( movl %ebx, %es:8(%edi) )
29081 adcl %edx, %eax
29082 -DST( movl %edx, 12(%edi) )
29083 +DST( movl %edx, %es:12(%edi) )
29084
29085 SRC( movl 16(%esi), %ebx )
29086 SRC( movl 20(%esi), %edx )
29087 adcl %ebx, %eax
29088 -DST( movl %ebx, 16(%edi) )
29089 +DST( movl %ebx, %es:16(%edi) )
29090 adcl %edx, %eax
29091 -DST( movl %edx, 20(%edi) )
29092 +DST( movl %edx, %es:20(%edi) )
29093
29094 SRC( movl 24(%esi), %ebx )
29095 SRC( movl 28(%esi), %edx )
29096 adcl %ebx, %eax
29097 -DST( movl %ebx, 24(%edi) )
29098 +DST( movl %ebx, %es:24(%edi) )
29099 adcl %edx, %eax
29100 -DST( movl %edx, 28(%edi) )
29101 +DST( movl %edx, %es:28(%edi) )
29102
29103 lea 32(%esi), %esi
29104 lea 32(%edi), %edi
29105 @@ -366,7 +382,7 @@ DST( movl %edx, 28(%edi) )
29106 shrl $2, %edx # This clears CF
29107 SRC(3: movl (%esi), %ebx )
29108 adcl %ebx, %eax
29109 -DST( movl %ebx, (%edi) )
29110 +DST( movl %ebx, %es:(%edi) )
29111 lea 4(%esi), %esi
29112 lea 4(%edi), %edi
29113 dec %edx
29114 @@ -378,12 +394,12 @@ DST( movl %ebx, (%edi) )
29115 jb 5f
29116 SRC( movw (%esi), %cx )
29117 leal 2(%esi), %esi
29118 -DST( movw %cx, (%edi) )
29119 +DST( movw %cx, %es:(%edi) )
29120 leal 2(%edi), %edi
29121 je 6f
29122 shll $16,%ecx
29123 SRC(5: movb (%esi), %cl )
29124 -DST( movb %cl, (%edi) )
29125 +DST( movb %cl, %es:(%edi) )
29126 6: addl %ecx, %eax
29127 adcl $0, %eax
29128 7:
29129 @@ -394,7 +410,7 @@ DST( movb %cl, (%edi) )
29130
29131 6001:
29132 movl ARGBASE+20(%esp), %ebx # src_err_ptr
29133 - movl $-EFAULT, (%ebx)
29134 + movl $-EFAULT, %ss:(%ebx)
29135
29136 # zero the complete destination - computing the rest
29137 # is too much work
29138 @@ -407,11 +423,15 @@ DST( movb %cl, (%edi) )
29139
29140 6002:
29141 movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29142 - movl $-EFAULT,(%ebx)
29143 + movl $-EFAULT,%ss:(%ebx)
29144 jmp 5000b
29145
29146 .previous
29147
29148 + pushl_cfi %ss
29149 + popl_cfi %ds
29150 + pushl_cfi %ss
29151 + popl_cfi %es
29152 popl_cfi %ebx
29153 CFI_RESTORE ebx
29154 popl_cfi %esi
29155 @@ -421,26 +441,43 @@ DST( movb %cl, (%edi) )
29156 popl_cfi %ecx # equivalent to addl $4,%esp
29157 ret
29158 CFI_ENDPROC
29159 -ENDPROC(csum_partial_copy_generic)
29160 +ENDPROC(csum_partial_copy_generic_to_user)
29161
29162 #else
29163
29164 /* Version for PentiumII/PPro */
29165
29166 #define ROUND1(x) \
29167 + nop; nop; nop; \
29168 SRC(movl x(%esi), %ebx ) ; \
29169 addl %ebx, %eax ; \
29170 - DST(movl %ebx, x(%edi) ) ;
29171 + DST(movl %ebx, %es:x(%edi)) ;
29172
29173 #define ROUND(x) \
29174 + nop; nop; nop; \
29175 SRC(movl x(%esi), %ebx ) ; \
29176 adcl %ebx, %eax ; \
29177 - DST(movl %ebx, x(%edi) ) ;
29178 + DST(movl %ebx, %es:x(%edi)) ;
29179
29180 #define ARGBASE 12
29181 -
29182 -ENTRY(csum_partial_copy_generic)
29183 +
29184 +ENTRY(csum_partial_copy_generic_to_user)
29185 CFI_STARTPROC
29186 +
29187 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29188 + pushl_cfi %gs
29189 + popl_cfi %es
29190 + jmp csum_partial_copy_generic
29191 +#endif
29192 +
29193 +ENTRY(csum_partial_copy_generic_from_user)
29194 +
29195 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29196 + pushl_cfi %gs
29197 + popl_cfi %ds
29198 +#endif
29199 +
29200 +ENTRY(csum_partial_copy_generic)
29201 pushl_cfi %ebx
29202 CFI_REL_OFFSET ebx, 0
29203 pushl_cfi %edi
29204 @@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
29205 subl %ebx, %edi
29206 lea -1(%esi),%edx
29207 andl $-32,%edx
29208 - lea 3f(%ebx,%ebx), %ebx
29209 + lea 3f(%ebx,%ebx,2), %ebx
29210 testl %esi, %esi
29211 jmp *%ebx
29212 1: addl $64,%esi
29213 @@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
29214 jb 5f
29215 SRC( movw (%esi), %dx )
29216 leal 2(%esi), %esi
29217 -DST( movw %dx, (%edi) )
29218 +DST( movw %dx, %es:(%edi) )
29219 leal 2(%edi), %edi
29220 je 6f
29221 shll $16,%edx
29222 5:
29223 SRC( movb (%esi), %dl )
29224 -DST( movb %dl, (%edi) )
29225 +DST( movb %dl, %es:(%edi) )
29226 6: addl %edx, %eax
29227 adcl $0, %eax
29228 7:
29229 .section .fixup, "ax"
29230 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
29231 - movl $-EFAULT, (%ebx)
29232 + movl $-EFAULT, %ss:(%ebx)
29233 # zero the complete destination (computing the rest is too much work)
29234 movl ARGBASE+8(%esp),%edi # dst
29235 movl ARGBASE+12(%esp),%ecx # len
29236 @@ -502,10 +539,17 @@ DST( movb %dl, (%edi) )
29237 rep; stosb
29238 jmp 7b
29239 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29240 - movl $-EFAULT, (%ebx)
29241 + movl $-EFAULT, %ss:(%ebx)
29242 jmp 7b
29243 .previous
29244
29245 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29246 + pushl_cfi %ss
29247 + popl_cfi %ds
29248 + pushl_cfi %ss
29249 + popl_cfi %es
29250 +#endif
29251 +
29252 popl_cfi %esi
29253 CFI_RESTORE esi
29254 popl_cfi %edi
29255 @@ -514,7 +558,7 @@ DST( movb %dl, (%edi) )
29256 CFI_RESTORE ebx
29257 ret
29258 CFI_ENDPROC
29259 -ENDPROC(csum_partial_copy_generic)
29260 +ENDPROC(csum_partial_copy_generic_to_user)
29261
29262 #undef ROUND
29263 #undef ROUND1
29264 diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
29265 index f2145cf..cea889d 100644
29266 --- a/arch/x86/lib/clear_page_64.S
29267 +++ b/arch/x86/lib/clear_page_64.S
29268 @@ -11,6 +11,7 @@ ENTRY(clear_page_c)
29269 movl $4096/8,%ecx
29270 xorl %eax,%eax
29271 rep stosq
29272 + pax_force_retaddr
29273 ret
29274 CFI_ENDPROC
29275 ENDPROC(clear_page_c)
29276 @@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
29277 movl $4096,%ecx
29278 xorl %eax,%eax
29279 rep stosb
29280 + pax_force_retaddr
29281 ret
29282 CFI_ENDPROC
29283 ENDPROC(clear_page_c_e)
29284 @@ -43,6 +45,7 @@ ENTRY(clear_page)
29285 leaq 64(%rdi),%rdi
29286 jnz .Lloop
29287 nop
29288 + pax_force_retaddr
29289 ret
29290 CFI_ENDPROC
29291 .Lclear_page_end:
29292 @@ -58,7 +61,7 @@ ENDPROC(clear_page)
29293
29294 #include <asm/cpufeature.h>
29295
29296 - .section .altinstr_replacement,"ax"
29297 + .section .altinstr_replacement,"a"
29298 1: .byte 0xeb /* jmp <disp8> */
29299 .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
29300 2: .byte 0xeb /* jmp <disp8> */
29301 diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
29302 index 1e572c5..2a162cd 100644
29303 --- a/arch/x86/lib/cmpxchg16b_emu.S
29304 +++ b/arch/x86/lib/cmpxchg16b_emu.S
29305 @@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu:
29306
29307 popf
29308 mov $1, %al
29309 + pax_force_retaddr
29310 ret
29311
29312 not_same:
29313 popf
29314 xor %al,%al
29315 + pax_force_retaddr
29316 ret
29317
29318 CFI_ENDPROC
29319 diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
29320 index 176cca6..e0d658e 100644
29321 --- a/arch/x86/lib/copy_page_64.S
29322 +++ b/arch/x86/lib/copy_page_64.S
29323 @@ -9,6 +9,7 @@ copy_page_rep:
29324 CFI_STARTPROC
29325 movl $4096/8, %ecx
29326 rep movsq
29327 + pax_force_retaddr
29328 ret
29329 CFI_ENDPROC
29330 ENDPROC(copy_page_rep)
29331 @@ -24,8 +25,8 @@ ENTRY(copy_page)
29332 CFI_ADJUST_CFA_OFFSET 2*8
29333 movq %rbx, (%rsp)
29334 CFI_REL_OFFSET rbx, 0
29335 - movq %r12, 1*8(%rsp)
29336 - CFI_REL_OFFSET r12, 1*8
29337 + movq %r13, 1*8(%rsp)
29338 + CFI_REL_OFFSET r13, 1*8
29339
29340 movl $(4096/64)-5, %ecx
29341 .p2align 4
29342 @@ -38,7 +39,7 @@ ENTRY(copy_page)
29343 movq 0x8*4(%rsi), %r9
29344 movq 0x8*5(%rsi), %r10
29345 movq 0x8*6(%rsi), %r11
29346 - movq 0x8*7(%rsi), %r12
29347 + movq 0x8*7(%rsi), %r13
29348
29349 prefetcht0 5*64(%rsi)
29350
29351 @@ -49,7 +50,7 @@ ENTRY(copy_page)
29352 movq %r9, 0x8*4(%rdi)
29353 movq %r10, 0x8*5(%rdi)
29354 movq %r11, 0x8*6(%rdi)
29355 - movq %r12, 0x8*7(%rdi)
29356 + movq %r13, 0x8*7(%rdi)
29357
29358 leaq 64 (%rsi), %rsi
29359 leaq 64 (%rdi), %rdi
29360 @@ -68,7 +69,7 @@ ENTRY(copy_page)
29361 movq 0x8*4(%rsi), %r9
29362 movq 0x8*5(%rsi), %r10
29363 movq 0x8*6(%rsi), %r11
29364 - movq 0x8*7(%rsi), %r12
29365 + movq 0x8*7(%rsi), %r13
29366
29367 movq %rax, 0x8*0(%rdi)
29368 movq %rbx, 0x8*1(%rdi)
29369 @@ -77,7 +78,7 @@ ENTRY(copy_page)
29370 movq %r9, 0x8*4(%rdi)
29371 movq %r10, 0x8*5(%rdi)
29372 movq %r11, 0x8*6(%rdi)
29373 - movq %r12, 0x8*7(%rdi)
29374 + movq %r13, 0x8*7(%rdi)
29375
29376 leaq 64(%rdi), %rdi
29377 leaq 64(%rsi), %rsi
29378 @@ -85,10 +86,11 @@ ENTRY(copy_page)
29379
29380 movq (%rsp), %rbx
29381 CFI_RESTORE rbx
29382 - movq 1*8(%rsp), %r12
29383 - CFI_RESTORE r12
29384 + movq 1*8(%rsp), %r13
29385 + CFI_RESTORE r13
29386 addq $2*8, %rsp
29387 CFI_ADJUST_CFA_OFFSET -2*8
29388 + pax_force_retaddr
29389 ret
29390 .Lcopy_page_end:
29391 CFI_ENDPROC
29392 @@ -99,7 +101,7 @@ ENDPROC(copy_page)
29393
29394 #include <asm/cpufeature.h>
29395
29396 - .section .altinstr_replacement,"ax"
29397 + .section .altinstr_replacement,"a"
29398 1: .byte 0xeb /* jmp <disp8> */
29399 .byte (copy_page_rep - copy_page) - (2f - 1b) /* offset */
29400 2:
29401 diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
29402 index dee945d..a84067b 100644
29403 --- a/arch/x86/lib/copy_user_64.S
29404 +++ b/arch/x86/lib/copy_user_64.S
29405 @@ -18,31 +18,7 @@
29406 #include <asm/alternative-asm.h>
29407 #include <asm/asm.h>
29408 #include <asm/smap.h>
29409 -
29410 -/*
29411 - * By placing feature2 after feature1 in altinstructions section, we logically
29412 - * implement:
29413 - * If CPU has feature2, jmp to alt2 is used
29414 - * else if CPU has feature1, jmp to alt1 is used
29415 - * else jmp to orig is used.
29416 - */
29417 - .macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2
29418 -0:
29419 - .byte 0xe9 /* 32bit jump */
29420 - .long \orig-1f /* by default jump to orig */
29421 -1:
29422 - .section .altinstr_replacement,"ax"
29423 -2: .byte 0xe9 /* near jump with 32bit immediate */
29424 - .long \alt1-1b /* offset */ /* or alternatively to alt1 */
29425 -3: .byte 0xe9 /* near jump with 32bit immediate */
29426 - .long \alt2-1b /* offset */ /* or alternatively to alt2 */
29427 - .previous
29428 -
29429 - .section .altinstructions,"a"
29430 - altinstruction_entry 0b,2b,\feature1,5,5
29431 - altinstruction_entry 0b,3b,\feature2,5,5
29432 - .previous
29433 - .endm
29434 +#include <asm/pgtable.h>
29435
29436 .macro ALIGN_DESTINATION
29437 #ifdef FIX_ALIGNMENT
29438 @@ -70,52 +46,6 @@
29439 #endif
29440 .endm
29441
29442 -/* Standard copy_to_user with segment limit checking */
29443 -ENTRY(_copy_to_user)
29444 - CFI_STARTPROC
29445 - GET_THREAD_INFO(%rax)
29446 - movq %rdi,%rcx
29447 - addq %rdx,%rcx
29448 - jc bad_to_user
29449 - cmpq TI_addr_limit(%rax),%rcx
29450 - ja bad_to_user
29451 - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
29452 - copy_user_generic_unrolled,copy_user_generic_string, \
29453 - copy_user_enhanced_fast_string
29454 - CFI_ENDPROC
29455 -ENDPROC(_copy_to_user)
29456 -
29457 -/* Standard copy_from_user with segment limit checking */
29458 -ENTRY(_copy_from_user)
29459 - CFI_STARTPROC
29460 - GET_THREAD_INFO(%rax)
29461 - movq %rsi,%rcx
29462 - addq %rdx,%rcx
29463 - jc bad_from_user
29464 - cmpq TI_addr_limit(%rax),%rcx
29465 - ja bad_from_user
29466 - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
29467 - copy_user_generic_unrolled,copy_user_generic_string, \
29468 - copy_user_enhanced_fast_string
29469 - CFI_ENDPROC
29470 -ENDPROC(_copy_from_user)
29471 -
29472 - .section .fixup,"ax"
29473 - /* must zero dest */
29474 -ENTRY(bad_from_user)
29475 -bad_from_user:
29476 - CFI_STARTPROC
29477 - movl %edx,%ecx
29478 - xorl %eax,%eax
29479 - rep
29480 - stosb
29481 -bad_to_user:
29482 - movl %edx,%eax
29483 - ret
29484 - CFI_ENDPROC
29485 -ENDPROC(bad_from_user)
29486 - .previous
29487 -
29488 /*
29489 * copy_user_generic_unrolled - memory copy with exception handling.
29490 * This version is for CPUs like P4 that don't have efficient micro
29491 @@ -131,6 +61,7 @@ ENDPROC(bad_from_user)
29492 */
29493 ENTRY(copy_user_generic_unrolled)
29494 CFI_STARTPROC
29495 + ASM_PAX_OPEN_USERLAND
29496 ASM_STAC
29497 cmpl $8,%edx
29498 jb 20f /* less then 8 bytes, go to byte copy loop */
29499 @@ -180,6 +111,8 @@ ENTRY(copy_user_generic_unrolled)
29500 jnz 21b
29501 23: xor %eax,%eax
29502 ASM_CLAC
29503 + ASM_PAX_CLOSE_USERLAND
29504 + pax_force_retaddr
29505 ret
29506
29507 .section .fixup,"ax"
29508 @@ -235,6 +168,7 @@ ENDPROC(copy_user_generic_unrolled)
29509 */
29510 ENTRY(copy_user_generic_string)
29511 CFI_STARTPROC
29512 + ASM_PAX_OPEN_USERLAND
29513 ASM_STAC
29514 cmpl $8,%edx
29515 jb 2f /* less than 8 bytes, go to byte copy loop */
29516 @@ -249,6 +183,8 @@ ENTRY(copy_user_generic_string)
29517 movsb
29518 xorl %eax,%eax
29519 ASM_CLAC
29520 + ASM_PAX_CLOSE_USERLAND
29521 + pax_force_retaddr
29522 ret
29523
29524 .section .fixup,"ax"
29525 @@ -276,12 +212,15 @@ ENDPROC(copy_user_generic_string)
29526 */
29527 ENTRY(copy_user_enhanced_fast_string)
29528 CFI_STARTPROC
29529 + ASM_PAX_OPEN_USERLAND
29530 ASM_STAC
29531 movl %edx,%ecx
29532 1: rep
29533 movsb
29534 xorl %eax,%eax
29535 ASM_CLAC
29536 + ASM_PAX_CLOSE_USERLAND
29537 + pax_force_retaddr
29538 ret
29539
29540 .section .fixup,"ax"
29541 diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
29542 index 6a4f43c..c70fb52 100644
29543 --- a/arch/x86/lib/copy_user_nocache_64.S
29544 +++ b/arch/x86/lib/copy_user_nocache_64.S
29545 @@ -8,6 +8,7 @@
29546
29547 #include <linux/linkage.h>
29548 #include <asm/dwarf2.h>
29549 +#include <asm/alternative-asm.h>
29550
29551 #define FIX_ALIGNMENT 1
29552
29553 @@ -16,6 +17,7 @@
29554 #include <asm/thread_info.h>
29555 #include <asm/asm.h>
29556 #include <asm/smap.h>
29557 +#include <asm/pgtable.h>
29558
29559 .macro ALIGN_DESTINATION
29560 #ifdef FIX_ALIGNMENT
29561 @@ -49,6 +51,16 @@
29562 */
29563 ENTRY(__copy_user_nocache)
29564 CFI_STARTPROC
29565 +
29566 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29567 + mov pax_user_shadow_base,%rcx
29568 + cmp %rcx,%rsi
29569 + jae 1f
29570 + add %rcx,%rsi
29571 +1:
29572 +#endif
29573 +
29574 + ASM_PAX_OPEN_USERLAND
29575 ASM_STAC
29576 cmpl $8,%edx
29577 jb 20f /* less then 8 bytes, go to byte copy loop */
29578 @@ -98,7 +110,9 @@ ENTRY(__copy_user_nocache)
29579 jnz 21b
29580 23: xorl %eax,%eax
29581 ASM_CLAC
29582 + ASM_PAX_CLOSE_USERLAND
29583 sfence
29584 + pax_force_retaddr
29585 ret
29586
29587 .section .fixup,"ax"
29588 diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
29589 index 2419d5f..fe52d0e 100644
29590 --- a/arch/x86/lib/csum-copy_64.S
29591 +++ b/arch/x86/lib/csum-copy_64.S
29592 @@ -9,6 +9,7 @@
29593 #include <asm/dwarf2.h>
29594 #include <asm/errno.h>
29595 #include <asm/asm.h>
29596 +#include <asm/alternative-asm.h>
29597
29598 /*
29599 * Checksum copy with exception handling.
29600 @@ -56,8 +57,8 @@ ENTRY(csum_partial_copy_generic)
29601 CFI_ADJUST_CFA_OFFSET 7*8
29602 movq %rbx, 2*8(%rsp)
29603 CFI_REL_OFFSET rbx, 2*8
29604 - movq %r12, 3*8(%rsp)
29605 - CFI_REL_OFFSET r12, 3*8
29606 + movq %r15, 3*8(%rsp)
29607 + CFI_REL_OFFSET r15, 3*8
29608 movq %r14, 4*8(%rsp)
29609 CFI_REL_OFFSET r14, 4*8
29610 movq %r13, 5*8(%rsp)
29611 @@ -72,16 +73,16 @@ ENTRY(csum_partial_copy_generic)
29612 movl %edx, %ecx
29613
29614 xorl %r9d, %r9d
29615 - movq %rcx, %r12
29616 + movq %rcx, %r15
29617
29618 - shrq $6, %r12
29619 + shrq $6, %r15
29620 jz .Lhandle_tail /* < 64 */
29621
29622 clc
29623
29624 /* main loop. clear in 64 byte blocks */
29625 /* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
29626 - /* r11: temp3, rdx: temp4, r12 loopcnt */
29627 + /* r11: temp3, rdx: temp4, r15 loopcnt */
29628 /* r10: temp5, rbp: temp6, r14 temp7, r13 temp8 */
29629 .p2align 4
29630 .Lloop:
29631 @@ -115,7 +116,7 @@ ENTRY(csum_partial_copy_generic)
29632 adcq %r14, %rax
29633 adcq %r13, %rax
29634
29635 - decl %r12d
29636 + decl %r15d
29637
29638 dest
29639 movq %rbx, (%rsi)
29640 @@ -210,8 +211,8 @@ ENTRY(csum_partial_copy_generic)
29641 .Lende:
29642 movq 2*8(%rsp), %rbx
29643 CFI_RESTORE rbx
29644 - movq 3*8(%rsp), %r12
29645 - CFI_RESTORE r12
29646 + movq 3*8(%rsp), %r15
29647 + CFI_RESTORE r15
29648 movq 4*8(%rsp), %r14
29649 CFI_RESTORE r14
29650 movq 5*8(%rsp), %r13
29651 @@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
29652 CFI_RESTORE rbp
29653 addq $7*8, %rsp
29654 CFI_ADJUST_CFA_OFFSET -7*8
29655 + pax_force_retaddr
29656 ret
29657 CFI_RESTORE_STATE
29658
29659 diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
29660 index 7609e0e..b449b98 100644
29661 --- a/arch/x86/lib/csum-wrappers_64.c
29662 +++ b/arch/x86/lib/csum-wrappers_64.c
29663 @@ -53,10 +53,12 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
29664 len -= 2;
29665 }
29666 }
29667 + pax_open_userland();
29668 stac();
29669 - isum = csum_partial_copy_generic((__force const void *)src,
29670 + isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
29671 dst, len, isum, errp, NULL);
29672 clac();
29673 + pax_close_userland();
29674 if (unlikely(*errp))
29675 goto out_err;
29676
29677 @@ -110,10 +112,12 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
29678 }
29679
29680 *errp = 0;
29681 + pax_open_userland();
29682 stac();
29683 - ret = csum_partial_copy_generic(src, (void __force *)dst,
29684 + ret = csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
29685 len, isum, NULL, errp);
29686 clac();
29687 + pax_close_userland();
29688 return ret;
29689 }
29690 EXPORT_SYMBOL(csum_partial_copy_to_user);
29691 diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
29692 index a451235..1daa956 100644
29693 --- a/arch/x86/lib/getuser.S
29694 +++ b/arch/x86/lib/getuser.S
29695 @@ -33,17 +33,40 @@
29696 #include <asm/thread_info.h>
29697 #include <asm/asm.h>
29698 #include <asm/smap.h>
29699 +#include <asm/segment.h>
29700 +#include <asm/pgtable.h>
29701 +#include <asm/alternative-asm.h>
29702 +
29703 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
29704 +#define __copyuser_seg gs;
29705 +#else
29706 +#define __copyuser_seg
29707 +#endif
29708
29709 .text
29710 ENTRY(__get_user_1)
29711 CFI_STARTPROC
29712 +
29713 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
29714 GET_THREAD_INFO(%_ASM_DX)
29715 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
29716 jae bad_get_user
29717 ASM_STAC
29718 -1: movzbl (%_ASM_AX),%edx
29719 +
29720 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
29721 + mov pax_user_shadow_base,%_ASM_DX
29722 + cmp %_ASM_DX,%_ASM_AX
29723 + jae 1234f
29724 + add %_ASM_DX,%_ASM_AX
29725 +1234:
29726 +#endif
29727 +
29728 +#endif
29729 +
29730 +1: __copyuser_seg movzbl (%_ASM_AX),%edx
29731 xor %eax,%eax
29732 ASM_CLAC
29733 + pax_force_retaddr
29734 ret
29735 CFI_ENDPROC
29736 ENDPROC(__get_user_1)
29737 @@ -51,14 +74,28 @@ ENDPROC(__get_user_1)
29738 ENTRY(__get_user_2)
29739 CFI_STARTPROC
29740 add $1,%_ASM_AX
29741 +
29742 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
29743 jc bad_get_user
29744 GET_THREAD_INFO(%_ASM_DX)
29745 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
29746 jae bad_get_user
29747 ASM_STAC
29748 -2: movzwl -1(%_ASM_AX),%edx
29749 +
29750 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
29751 + mov pax_user_shadow_base,%_ASM_DX
29752 + cmp %_ASM_DX,%_ASM_AX
29753 + jae 1234f
29754 + add %_ASM_DX,%_ASM_AX
29755 +1234:
29756 +#endif
29757 +
29758 +#endif
29759 +
29760 +2: __copyuser_seg movzwl -1(%_ASM_AX),%edx
29761 xor %eax,%eax
29762 ASM_CLAC
29763 + pax_force_retaddr
29764 ret
29765 CFI_ENDPROC
29766 ENDPROC(__get_user_2)
29767 @@ -66,14 +103,28 @@ ENDPROC(__get_user_2)
29768 ENTRY(__get_user_4)
29769 CFI_STARTPROC
29770 add $3,%_ASM_AX
29771 +
29772 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
29773 jc bad_get_user
29774 GET_THREAD_INFO(%_ASM_DX)
29775 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
29776 jae bad_get_user
29777 ASM_STAC
29778 -3: movl -3(%_ASM_AX),%edx
29779 +
29780 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
29781 + mov pax_user_shadow_base,%_ASM_DX
29782 + cmp %_ASM_DX,%_ASM_AX
29783 + jae 1234f
29784 + add %_ASM_DX,%_ASM_AX
29785 +1234:
29786 +#endif
29787 +
29788 +#endif
29789 +
29790 +3: __copyuser_seg movl -3(%_ASM_AX),%edx
29791 xor %eax,%eax
29792 ASM_CLAC
29793 + pax_force_retaddr
29794 ret
29795 CFI_ENDPROC
29796 ENDPROC(__get_user_4)
29797 @@ -86,10 +137,20 @@ ENTRY(__get_user_8)
29798 GET_THREAD_INFO(%_ASM_DX)
29799 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
29800 jae bad_get_user
29801 +
29802 +#ifdef CONFIG_PAX_MEMORY_UDEREF
29803 + mov pax_user_shadow_base,%_ASM_DX
29804 + cmp %_ASM_DX,%_ASM_AX
29805 + jae 1234f
29806 + add %_ASM_DX,%_ASM_AX
29807 +1234:
29808 +#endif
29809 +
29810 ASM_STAC
29811 4: movq -7(%_ASM_AX),%rdx
29812 xor %eax,%eax
29813 ASM_CLAC
29814 + pax_force_retaddr
29815 ret
29816 #else
29817 add $7,%_ASM_AX
29818 @@ -98,10 +159,11 @@ ENTRY(__get_user_8)
29819 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
29820 jae bad_get_user_8
29821 ASM_STAC
29822 -4: movl -7(%_ASM_AX),%edx
29823 -5: movl -3(%_ASM_AX),%ecx
29824 +4: __copyuser_seg movl -7(%_ASM_AX),%edx
29825 +5: __copyuser_seg movl -3(%_ASM_AX),%ecx
29826 xor %eax,%eax
29827 ASM_CLAC
29828 + pax_force_retaddr
29829 ret
29830 #endif
29831 CFI_ENDPROC
29832 @@ -113,6 +175,7 @@ bad_get_user:
29833 xor %edx,%edx
29834 mov $(-EFAULT),%_ASM_AX
29835 ASM_CLAC
29836 + pax_force_retaddr
29837 ret
29838 CFI_ENDPROC
29839 END(bad_get_user)
29840 @@ -124,6 +187,7 @@ bad_get_user_8:
29841 xor %ecx,%ecx
29842 mov $(-EFAULT),%_ASM_AX
29843 ASM_CLAC
29844 + pax_force_retaddr
29845 ret
29846 CFI_ENDPROC
29847 END(bad_get_user_8)
29848 diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
29849 index 54fcffe..7be149e 100644
29850 --- a/arch/x86/lib/insn.c
29851 +++ b/arch/x86/lib/insn.c
29852 @@ -20,8 +20,10 @@
29853
29854 #ifdef __KERNEL__
29855 #include <linux/string.h>
29856 +#include <asm/pgtable_types.h>
29857 #else
29858 #include <string.h>
29859 +#define ktla_ktva(addr) addr
29860 #endif
29861 #include <asm/inat.h>
29862 #include <asm/insn.h>
29863 @@ -53,8 +55,8 @@
29864 void insn_init(struct insn *insn, const void *kaddr, int x86_64)
29865 {
29866 memset(insn, 0, sizeof(*insn));
29867 - insn->kaddr = kaddr;
29868 - insn->next_byte = kaddr;
29869 + insn->kaddr = ktla_ktva(kaddr);
29870 + insn->next_byte = ktla_ktva(kaddr);
29871 insn->x86_64 = x86_64 ? 1 : 0;
29872 insn->opnd_bytes = 4;
29873 if (x86_64)
29874 diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
29875 index 05a95e7..326f2fa 100644
29876 --- a/arch/x86/lib/iomap_copy_64.S
29877 +++ b/arch/x86/lib/iomap_copy_64.S
29878 @@ -17,6 +17,7 @@
29879
29880 #include <linux/linkage.h>
29881 #include <asm/dwarf2.h>
29882 +#include <asm/alternative-asm.h>
29883
29884 /*
29885 * override generic version in lib/iomap_copy.c
29886 @@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
29887 CFI_STARTPROC
29888 movl %edx,%ecx
29889 rep movsd
29890 + pax_force_retaddr
29891 ret
29892 CFI_ENDPROC
29893 ENDPROC(__iowrite32_copy)
29894 diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
29895 index 56313a3..0db417e 100644
29896 --- a/arch/x86/lib/memcpy_64.S
29897 +++ b/arch/x86/lib/memcpy_64.S
29898 @@ -24,7 +24,7 @@
29899 * This gets patched over the unrolled variant (below) via the
29900 * alternative instructions framework:
29901 */
29902 - .section .altinstr_replacement, "ax", @progbits
29903 + .section .altinstr_replacement, "a", @progbits
29904 .Lmemcpy_c:
29905 movq %rdi, %rax
29906 movq %rdx, %rcx
29907 @@ -33,6 +33,7 @@
29908 rep movsq
29909 movl %edx, %ecx
29910 rep movsb
29911 + pax_force_retaddr
29912 ret
29913 .Lmemcpy_e:
29914 .previous
29915 @@ -44,11 +45,12 @@
29916 * This gets patched over the unrolled variant (below) via the
29917 * alternative instructions framework:
29918 */
29919 - .section .altinstr_replacement, "ax", @progbits
29920 + .section .altinstr_replacement, "a", @progbits
29921 .Lmemcpy_c_e:
29922 movq %rdi, %rax
29923 movq %rdx, %rcx
29924 rep movsb
29925 + pax_force_retaddr
29926 ret
29927 .Lmemcpy_e_e:
29928 .previous
29929 @@ -136,6 +138,7 @@ ENTRY(memcpy)
29930 movq %r9, 1*8(%rdi)
29931 movq %r10, -2*8(%rdi, %rdx)
29932 movq %r11, -1*8(%rdi, %rdx)
29933 + pax_force_retaddr
29934 retq
29935 .p2align 4
29936 .Lless_16bytes:
29937 @@ -148,6 +151,7 @@ ENTRY(memcpy)
29938 movq -1*8(%rsi, %rdx), %r9
29939 movq %r8, 0*8(%rdi)
29940 movq %r9, -1*8(%rdi, %rdx)
29941 + pax_force_retaddr
29942 retq
29943 .p2align 4
29944 .Lless_8bytes:
29945 @@ -161,6 +165,7 @@ ENTRY(memcpy)
29946 movl -4(%rsi, %rdx), %r8d
29947 movl %ecx, (%rdi)
29948 movl %r8d, -4(%rdi, %rdx)
29949 + pax_force_retaddr
29950 retq
29951 .p2align 4
29952 .Lless_3bytes:
29953 @@ -179,6 +184,7 @@ ENTRY(memcpy)
29954 movb %cl, (%rdi)
29955
29956 .Lend:
29957 + pax_force_retaddr
29958 retq
29959 CFI_ENDPROC
29960 ENDPROC(memcpy)
29961 diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
29962 index 65268a6..dd1de11 100644
29963 --- a/arch/x86/lib/memmove_64.S
29964 +++ b/arch/x86/lib/memmove_64.S
29965 @@ -202,14 +202,16 @@ ENTRY(memmove)
29966 movb (%rsi), %r11b
29967 movb %r11b, (%rdi)
29968 13:
29969 + pax_force_retaddr
29970 retq
29971 CFI_ENDPROC
29972
29973 - .section .altinstr_replacement,"ax"
29974 + .section .altinstr_replacement,"a"
29975 .Lmemmove_begin_forward_efs:
29976 /* Forward moving data. */
29977 movq %rdx, %rcx
29978 rep movsb
29979 + pax_force_retaddr
29980 retq
29981 .Lmemmove_end_forward_efs:
29982 .previous
29983 diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
29984 index 2dcb380..2eb79fe 100644
29985 --- a/arch/x86/lib/memset_64.S
29986 +++ b/arch/x86/lib/memset_64.S
29987 @@ -16,7 +16,7 @@
29988 *
29989 * rax original destination
29990 */
29991 - .section .altinstr_replacement, "ax", @progbits
29992 + .section .altinstr_replacement, "a", @progbits
29993 .Lmemset_c:
29994 movq %rdi,%r9
29995 movq %rdx,%rcx
29996 @@ -30,6 +30,7 @@
29997 movl %edx,%ecx
29998 rep stosb
29999 movq %r9,%rax
30000 + pax_force_retaddr
30001 ret
30002 .Lmemset_e:
30003 .previous
30004 @@ -45,13 +46,14 @@
30005 *
30006 * rax original destination
30007 */
30008 - .section .altinstr_replacement, "ax", @progbits
30009 + .section .altinstr_replacement, "a", @progbits
30010 .Lmemset_c_e:
30011 movq %rdi,%r9
30012 movb %sil,%al
30013 movq %rdx,%rcx
30014 rep stosb
30015 movq %r9,%rax
30016 + pax_force_retaddr
30017 ret
30018 .Lmemset_e_e:
30019 .previous
30020 @@ -118,6 +120,7 @@ ENTRY(__memset)
30021
30022 .Lende:
30023 movq %r10,%rax
30024 + pax_force_retaddr
30025 ret
30026
30027 CFI_RESTORE_STATE
30028 diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
30029 index c9f2d9b..e7fd2c0 100644
30030 --- a/arch/x86/lib/mmx_32.c
30031 +++ b/arch/x86/lib/mmx_32.c
30032 @@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30033 {
30034 void *p;
30035 int i;
30036 + unsigned long cr0;
30037
30038 if (unlikely(in_interrupt()))
30039 return __memcpy(to, from, len);
30040 @@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30041 kernel_fpu_begin();
30042
30043 __asm__ __volatile__ (
30044 - "1: prefetch (%0)\n" /* This set is 28 bytes */
30045 - " prefetch 64(%0)\n"
30046 - " prefetch 128(%0)\n"
30047 - " prefetch 192(%0)\n"
30048 - " prefetch 256(%0)\n"
30049 + "1: prefetch (%1)\n" /* This set is 28 bytes */
30050 + " prefetch 64(%1)\n"
30051 + " prefetch 128(%1)\n"
30052 + " prefetch 192(%1)\n"
30053 + " prefetch 256(%1)\n"
30054 "2: \n"
30055 ".section .fixup, \"ax\"\n"
30056 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30057 + "3: \n"
30058 +
30059 +#ifdef CONFIG_PAX_KERNEXEC
30060 + " movl %%cr0, %0\n"
30061 + " movl %0, %%eax\n"
30062 + " andl $0xFFFEFFFF, %%eax\n"
30063 + " movl %%eax, %%cr0\n"
30064 +#endif
30065 +
30066 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30067 +
30068 +#ifdef CONFIG_PAX_KERNEXEC
30069 + " movl %0, %%cr0\n"
30070 +#endif
30071 +
30072 " jmp 2b\n"
30073 ".previous\n"
30074 _ASM_EXTABLE(1b, 3b)
30075 - : : "r" (from));
30076 + : "=&r" (cr0) : "r" (from) : "ax");
30077
30078 for ( ; i > 5; i--) {
30079 __asm__ __volatile__ (
30080 - "1: prefetch 320(%0)\n"
30081 - "2: movq (%0), %%mm0\n"
30082 - " movq 8(%0), %%mm1\n"
30083 - " movq 16(%0), %%mm2\n"
30084 - " movq 24(%0), %%mm3\n"
30085 - " movq %%mm0, (%1)\n"
30086 - " movq %%mm1, 8(%1)\n"
30087 - " movq %%mm2, 16(%1)\n"
30088 - " movq %%mm3, 24(%1)\n"
30089 - " movq 32(%0), %%mm0\n"
30090 - " movq 40(%0), %%mm1\n"
30091 - " movq 48(%0), %%mm2\n"
30092 - " movq 56(%0), %%mm3\n"
30093 - " movq %%mm0, 32(%1)\n"
30094 - " movq %%mm1, 40(%1)\n"
30095 - " movq %%mm2, 48(%1)\n"
30096 - " movq %%mm3, 56(%1)\n"
30097 + "1: prefetch 320(%1)\n"
30098 + "2: movq (%1), %%mm0\n"
30099 + " movq 8(%1), %%mm1\n"
30100 + " movq 16(%1), %%mm2\n"
30101 + " movq 24(%1), %%mm3\n"
30102 + " movq %%mm0, (%2)\n"
30103 + " movq %%mm1, 8(%2)\n"
30104 + " movq %%mm2, 16(%2)\n"
30105 + " movq %%mm3, 24(%2)\n"
30106 + " movq 32(%1), %%mm0\n"
30107 + " movq 40(%1), %%mm1\n"
30108 + " movq 48(%1), %%mm2\n"
30109 + " movq 56(%1), %%mm3\n"
30110 + " movq %%mm0, 32(%2)\n"
30111 + " movq %%mm1, 40(%2)\n"
30112 + " movq %%mm2, 48(%2)\n"
30113 + " movq %%mm3, 56(%2)\n"
30114 ".section .fixup, \"ax\"\n"
30115 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30116 + "3:\n"
30117 +
30118 +#ifdef CONFIG_PAX_KERNEXEC
30119 + " movl %%cr0, %0\n"
30120 + " movl %0, %%eax\n"
30121 + " andl $0xFFFEFFFF, %%eax\n"
30122 + " movl %%eax, %%cr0\n"
30123 +#endif
30124 +
30125 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30126 +
30127 +#ifdef CONFIG_PAX_KERNEXEC
30128 + " movl %0, %%cr0\n"
30129 +#endif
30130 +
30131 " jmp 2b\n"
30132 ".previous\n"
30133 _ASM_EXTABLE(1b, 3b)
30134 - : : "r" (from), "r" (to) : "memory");
30135 + : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30136
30137 from += 64;
30138 to += 64;
30139 @@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
30140 static void fast_copy_page(void *to, void *from)
30141 {
30142 int i;
30143 + unsigned long cr0;
30144
30145 kernel_fpu_begin();
30146
30147 @@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
30148 * but that is for later. -AV
30149 */
30150 __asm__ __volatile__(
30151 - "1: prefetch (%0)\n"
30152 - " prefetch 64(%0)\n"
30153 - " prefetch 128(%0)\n"
30154 - " prefetch 192(%0)\n"
30155 - " prefetch 256(%0)\n"
30156 + "1: prefetch (%1)\n"
30157 + " prefetch 64(%1)\n"
30158 + " prefetch 128(%1)\n"
30159 + " prefetch 192(%1)\n"
30160 + " prefetch 256(%1)\n"
30161 "2: \n"
30162 ".section .fixup, \"ax\"\n"
30163 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30164 + "3: \n"
30165 +
30166 +#ifdef CONFIG_PAX_KERNEXEC
30167 + " movl %%cr0, %0\n"
30168 + " movl %0, %%eax\n"
30169 + " andl $0xFFFEFFFF, %%eax\n"
30170 + " movl %%eax, %%cr0\n"
30171 +#endif
30172 +
30173 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30174 +
30175 +#ifdef CONFIG_PAX_KERNEXEC
30176 + " movl %0, %%cr0\n"
30177 +#endif
30178 +
30179 " jmp 2b\n"
30180 ".previous\n"
30181 - _ASM_EXTABLE(1b, 3b) : : "r" (from));
30182 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30183
30184 for (i = 0; i < (4096-320)/64; i++) {
30185 __asm__ __volatile__ (
30186 - "1: prefetch 320(%0)\n"
30187 - "2: movq (%0), %%mm0\n"
30188 - " movntq %%mm0, (%1)\n"
30189 - " movq 8(%0), %%mm1\n"
30190 - " movntq %%mm1, 8(%1)\n"
30191 - " movq 16(%0), %%mm2\n"
30192 - " movntq %%mm2, 16(%1)\n"
30193 - " movq 24(%0), %%mm3\n"
30194 - " movntq %%mm3, 24(%1)\n"
30195 - " movq 32(%0), %%mm4\n"
30196 - " movntq %%mm4, 32(%1)\n"
30197 - " movq 40(%0), %%mm5\n"
30198 - " movntq %%mm5, 40(%1)\n"
30199 - " movq 48(%0), %%mm6\n"
30200 - " movntq %%mm6, 48(%1)\n"
30201 - " movq 56(%0), %%mm7\n"
30202 - " movntq %%mm7, 56(%1)\n"
30203 + "1: prefetch 320(%1)\n"
30204 + "2: movq (%1), %%mm0\n"
30205 + " movntq %%mm0, (%2)\n"
30206 + " movq 8(%1), %%mm1\n"
30207 + " movntq %%mm1, 8(%2)\n"
30208 + " movq 16(%1), %%mm2\n"
30209 + " movntq %%mm2, 16(%2)\n"
30210 + " movq 24(%1), %%mm3\n"
30211 + " movntq %%mm3, 24(%2)\n"
30212 + " movq 32(%1), %%mm4\n"
30213 + " movntq %%mm4, 32(%2)\n"
30214 + " movq 40(%1), %%mm5\n"
30215 + " movntq %%mm5, 40(%2)\n"
30216 + " movq 48(%1), %%mm6\n"
30217 + " movntq %%mm6, 48(%2)\n"
30218 + " movq 56(%1), %%mm7\n"
30219 + " movntq %%mm7, 56(%2)\n"
30220 ".section .fixup, \"ax\"\n"
30221 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30222 + "3:\n"
30223 +
30224 +#ifdef CONFIG_PAX_KERNEXEC
30225 + " movl %%cr0, %0\n"
30226 + " movl %0, %%eax\n"
30227 + " andl $0xFFFEFFFF, %%eax\n"
30228 + " movl %%eax, %%cr0\n"
30229 +#endif
30230 +
30231 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30232 +
30233 +#ifdef CONFIG_PAX_KERNEXEC
30234 + " movl %0, %%cr0\n"
30235 +#endif
30236 +
30237 " jmp 2b\n"
30238 ".previous\n"
30239 - _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
30240 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30241
30242 from += 64;
30243 to += 64;
30244 @@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
30245 static void fast_copy_page(void *to, void *from)
30246 {
30247 int i;
30248 + unsigned long cr0;
30249
30250 kernel_fpu_begin();
30251
30252 __asm__ __volatile__ (
30253 - "1: prefetch (%0)\n"
30254 - " prefetch 64(%0)\n"
30255 - " prefetch 128(%0)\n"
30256 - " prefetch 192(%0)\n"
30257 - " prefetch 256(%0)\n"
30258 + "1: prefetch (%1)\n"
30259 + " prefetch 64(%1)\n"
30260 + " prefetch 128(%1)\n"
30261 + " prefetch 192(%1)\n"
30262 + " prefetch 256(%1)\n"
30263 "2: \n"
30264 ".section .fixup, \"ax\"\n"
30265 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30266 + "3: \n"
30267 +
30268 +#ifdef CONFIG_PAX_KERNEXEC
30269 + " movl %%cr0, %0\n"
30270 + " movl %0, %%eax\n"
30271 + " andl $0xFFFEFFFF, %%eax\n"
30272 + " movl %%eax, %%cr0\n"
30273 +#endif
30274 +
30275 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30276 +
30277 +#ifdef CONFIG_PAX_KERNEXEC
30278 + " movl %0, %%cr0\n"
30279 +#endif
30280 +
30281 " jmp 2b\n"
30282 ".previous\n"
30283 - _ASM_EXTABLE(1b, 3b) : : "r" (from));
30284 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30285
30286 for (i = 0; i < 4096/64; i++) {
30287 __asm__ __volatile__ (
30288 - "1: prefetch 320(%0)\n"
30289 - "2: movq (%0), %%mm0\n"
30290 - " movq 8(%0), %%mm1\n"
30291 - " movq 16(%0), %%mm2\n"
30292 - " movq 24(%0), %%mm3\n"
30293 - " movq %%mm0, (%1)\n"
30294 - " movq %%mm1, 8(%1)\n"
30295 - " movq %%mm2, 16(%1)\n"
30296 - " movq %%mm3, 24(%1)\n"
30297 - " movq 32(%0), %%mm0\n"
30298 - " movq 40(%0), %%mm1\n"
30299 - " movq 48(%0), %%mm2\n"
30300 - " movq 56(%0), %%mm3\n"
30301 - " movq %%mm0, 32(%1)\n"
30302 - " movq %%mm1, 40(%1)\n"
30303 - " movq %%mm2, 48(%1)\n"
30304 - " movq %%mm3, 56(%1)\n"
30305 + "1: prefetch 320(%1)\n"
30306 + "2: movq (%1), %%mm0\n"
30307 + " movq 8(%1), %%mm1\n"
30308 + " movq 16(%1), %%mm2\n"
30309 + " movq 24(%1), %%mm3\n"
30310 + " movq %%mm0, (%2)\n"
30311 + " movq %%mm1, 8(%2)\n"
30312 + " movq %%mm2, 16(%2)\n"
30313 + " movq %%mm3, 24(%2)\n"
30314 + " movq 32(%1), %%mm0\n"
30315 + " movq 40(%1), %%mm1\n"
30316 + " movq 48(%1), %%mm2\n"
30317 + " movq 56(%1), %%mm3\n"
30318 + " movq %%mm0, 32(%2)\n"
30319 + " movq %%mm1, 40(%2)\n"
30320 + " movq %%mm2, 48(%2)\n"
30321 + " movq %%mm3, 56(%2)\n"
30322 ".section .fixup, \"ax\"\n"
30323 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30324 + "3:\n"
30325 +
30326 +#ifdef CONFIG_PAX_KERNEXEC
30327 + " movl %%cr0, %0\n"
30328 + " movl %0, %%eax\n"
30329 + " andl $0xFFFEFFFF, %%eax\n"
30330 + " movl %%eax, %%cr0\n"
30331 +#endif
30332 +
30333 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30334 +
30335 +#ifdef CONFIG_PAX_KERNEXEC
30336 + " movl %0, %%cr0\n"
30337 +#endif
30338 +
30339 " jmp 2b\n"
30340 ".previous\n"
30341 _ASM_EXTABLE(1b, 3b)
30342 - : : "r" (from), "r" (to) : "memory");
30343 + : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30344
30345 from += 64;
30346 to += 64;
30347 diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
30348 index f6d13ee..d789440 100644
30349 --- a/arch/x86/lib/msr-reg.S
30350 +++ b/arch/x86/lib/msr-reg.S
30351 @@ -3,6 +3,7 @@
30352 #include <asm/dwarf2.h>
30353 #include <asm/asm.h>
30354 #include <asm/msr.h>
30355 +#include <asm/alternative-asm.h>
30356
30357 #ifdef CONFIG_X86_64
30358 /*
30359 @@ -37,6 +38,7 @@ ENTRY(\op\()_safe_regs)
30360 movl %edi, 28(%r10)
30361 popq_cfi %rbp
30362 popq_cfi %rbx
30363 + pax_force_retaddr
30364 ret
30365 3:
30366 CFI_RESTORE_STATE
30367 diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
30368 index fc6ba17..d4d989d 100644
30369 --- a/arch/x86/lib/putuser.S
30370 +++ b/arch/x86/lib/putuser.S
30371 @@ -16,7 +16,9 @@
30372 #include <asm/errno.h>
30373 #include <asm/asm.h>
30374 #include <asm/smap.h>
30375 -
30376 +#include <asm/segment.h>
30377 +#include <asm/pgtable.h>
30378 +#include <asm/alternative-asm.h>
30379
30380 /*
30381 * __put_user_X
30382 @@ -30,57 +32,125 @@
30383 * as they get called from within inline assembly.
30384 */
30385
30386 -#define ENTER CFI_STARTPROC ; \
30387 - GET_THREAD_INFO(%_ASM_BX)
30388 -#define EXIT ASM_CLAC ; \
30389 - ret ; \
30390 +#define ENTER CFI_STARTPROC
30391 +#define EXIT ASM_CLAC ; \
30392 + pax_force_retaddr ; \
30393 + ret ; \
30394 CFI_ENDPROC
30395
30396 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30397 +#define _DEST %_ASM_CX,%_ASM_BX
30398 +#else
30399 +#define _DEST %_ASM_CX
30400 +#endif
30401 +
30402 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
30403 +#define __copyuser_seg gs;
30404 +#else
30405 +#define __copyuser_seg
30406 +#endif
30407 +
30408 .text
30409 ENTRY(__put_user_1)
30410 ENTER
30411 +
30412 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30413 + GET_THREAD_INFO(%_ASM_BX)
30414 cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
30415 jae bad_put_user
30416 ASM_STAC
30417 -1: movb %al,(%_ASM_CX)
30418 +
30419 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30420 + mov pax_user_shadow_base,%_ASM_BX
30421 + cmp %_ASM_BX,%_ASM_CX
30422 + jb 1234f
30423 + xor %ebx,%ebx
30424 +1234:
30425 +#endif
30426 +
30427 +#endif
30428 +
30429 +1: __copyuser_seg movb %al,(_DEST)
30430 xor %eax,%eax
30431 EXIT
30432 ENDPROC(__put_user_1)
30433
30434 ENTRY(__put_user_2)
30435 ENTER
30436 +
30437 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30438 + GET_THREAD_INFO(%_ASM_BX)
30439 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30440 sub $1,%_ASM_BX
30441 cmp %_ASM_BX,%_ASM_CX
30442 jae bad_put_user
30443 ASM_STAC
30444 -2: movw %ax,(%_ASM_CX)
30445 +
30446 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30447 + mov pax_user_shadow_base,%_ASM_BX
30448 + cmp %_ASM_BX,%_ASM_CX
30449 + jb 1234f
30450 + xor %ebx,%ebx
30451 +1234:
30452 +#endif
30453 +
30454 +#endif
30455 +
30456 +2: __copyuser_seg movw %ax,(_DEST)
30457 xor %eax,%eax
30458 EXIT
30459 ENDPROC(__put_user_2)
30460
30461 ENTRY(__put_user_4)
30462 ENTER
30463 +
30464 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30465 + GET_THREAD_INFO(%_ASM_BX)
30466 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30467 sub $3,%_ASM_BX
30468 cmp %_ASM_BX,%_ASM_CX
30469 jae bad_put_user
30470 ASM_STAC
30471 -3: movl %eax,(%_ASM_CX)
30472 +
30473 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30474 + mov pax_user_shadow_base,%_ASM_BX
30475 + cmp %_ASM_BX,%_ASM_CX
30476 + jb 1234f
30477 + xor %ebx,%ebx
30478 +1234:
30479 +#endif
30480 +
30481 +#endif
30482 +
30483 +3: __copyuser_seg movl %eax,(_DEST)
30484 xor %eax,%eax
30485 EXIT
30486 ENDPROC(__put_user_4)
30487
30488 ENTRY(__put_user_8)
30489 ENTER
30490 +
30491 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30492 + GET_THREAD_INFO(%_ASM_BX)
30493 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30494 sub $7,%_ASM_BX
30495 cmp %_ASM_BX,%_ASM_CX
30496 jae bad_put_user
30497 ASM_STAC
30498 -4: mov %_ASM_AX,(%_ASM_CX)
30499 +
30500 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30501 + mov pax_user_shadow_base,%_ASM_BX
30502 + cmp %_ASM_BX,%_ASM_CX
30503 + jb 1234f
30504 + xor %ebx,%ebx
30505 +1234:
30506 +#endif
30507 +
30508 +#endif
30509 +
30510 +4: __copyuser_seg mov %_ASM_AX,(_DEST)
30511 #ifdef CONFIG_X86_32
30512 -5: movl %edx,4(%_ASM_CX)
30513 +5: __copyuser_seg movl %edx,4(_DEST)
30514 #endif
30515 xor %eax,%eax
30516 EXIT
30517 diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S
30518 index 1cad221..de671ee 100644
30519 --- a/arch/x86/lib/rwlock.S
30520 +++ b/arch/x86/lib/rwlock.S
30521 @@ -16,13 +16,34 @@ ENTRY(__write_lock_failed)
30522 FRAME
30523 0: LOCK_PREFIX
30524 WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
30525 +
30526 +#ifdef CONFIG_PAX_REFCOUNT
30527 + jno 1234f
30528 + LOCK_PREFIX
30529 + WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
30530 + int $4
30531 +1234:
30532 + _ASM_EXTABLE(1234b, 1234b)
30533 +#endif
30534 +
30535 1: rep; nop
30536 cmpl $WRITE_LOCK_CMP, (%__lock_ptr)
30537 jne 1b
30538 LOCK_PREFIX
30539 WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
30540 +
30541 +#ifdef CONFIG_PAX_REFCOUNT
30542 + jno 1234f
30543 + LOCK_PREFIX
30544 + WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
30545 + int $4
30546 +1234:
30547 + _ASM_EXTABLE(1234b, 1234b)
30548 +#endif
30549 +
30550 jnz 0b
30551 ENDFRAME
30552 + pax_force_retaddr
30553 ret
30554 CFI_ENDPROC
30555 END(__write_lock_failed)
30556 @@ -32,13 +53,34 @@ ENTRY(__read_lock_failed)
30557 FRAME
30558 0: LOCK_PREFIX
30559 READ_LOCK_SIZE(inc) (%__lock_ptr)
30560 +
30561 +#ifdef CONFIG_PAX_REFCOUNT
30562 + jno 1234f
30563 + LOCK_PREFIX
30564 + READ_LOCK_SIZE(dec) (%__lock_ptr)
30565 + int $4
30566 +1234:
30567 + _ASM_EXTABLE(1234b, 1234b)
30568 +#endif
30569 +
30570 1: rep; nop
30571 READ_LOCK_SIZE(cmp) $1, (%__lock_ptr)
30572 js 1b
30573 LOCK_PREFIX
30574 READ_LOCK_SIZE(dec) (%__lock_ptr)
30575 +
30576 +#ifdef CONFIG_PAX_REFCOUNT
30577 + jno 1234f
30578 + LOCK_PREFIX
30579 + READ_LOCK_SIZE(inc) (%__lock_ptr)
30580 + int $4
30581 +1234:
30582 + _ASM_EXTABLE(1234b, 1234b)
30583 +#endif
30584 +
30585 js 0b
30586 ENDFRAME
30587 + pax_force_retaddr
30588 ret
30589 CFI_ENDPROC
30590 END(__read_lock_failed)
30591 diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
30592 index 5dff5f0..cadebf4 100644
30593 --- a/arch/x86/lib/rwsem.S
30594 +++ b/arch/x86/lib/rwsem.S
30595 @@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
30596 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
30597 CFI_RESTORE __ASM_REG(dx)
30598 restore_common_regs
30599 + pax_force_retaddr
30600 ret
30601 CFI_ENDPROC
30602 ENDPROC(call_rwsem_down_read_failed)
30603 @@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
30604 movq %rax,%rdi
30605 call rwsem_down_write_failed
30606 restore_common_regs
30607 + pax_force_retaddr
30608 ret
30609 CFI_ENDPROC
30610 ENDPROC(call_rwsem_down_write_failed)
30611 @@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
30612 movq %rax,%rdi
30613 call rwsem_wake
30614 restore_common_regs
30615 -1: ret
30616 +1: pax_force_retaddr
30617 + ret
30618 CFI_ENDPROC
30619 ENDPROC(call_rwsem_wake)
30620
30621 @@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
30622 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
30623 CFI_RESTORE __ASM_REG(dx)
30624 restore_common_regs
30625 + pax_force_retaddr
30626 ret
30627 CFI_ENDPROC
30628 ENDPROC(call_rwsem_downgrade_wake)
30629 diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
30630 index a63efd6..8149fbe 100644
30631 --- a/arch/x86/lib/thunk_64.S
30632 +++ b/arch/x86/lib/thunk_64.S
30633 @@ -8,6 +8,7 @@
30634 #include <linux/linkage.h>
30635 #include <asm/dwarf2.h>
30636 #include <asm/calling.h>
30637 +#include <asm/alternative-asm.h>
30638
30639 /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
30640 .macro THUNK name, func, put_ret_addr_in_rdi=0
30641 @@ -15,11 +16,11 @@
30642 \name:
30643 CFI_STARTPROC
30644
30645 - /* this one pushes 9 elems, the next one would be %rIP */
30646 - SAVE_ARGS
30647 + /* this one pushes 15+1 elems, the next one would be %rIP */
30648 + SAVE_ARGS 8
30649
30650 .if \put_ret_addr_in_rdi
30651 - movq_cfi_restore 9*8, rdi
30652 + movq_cfi_restore RIP, rdi
30653 .endif
30654
30655 call \func
30656 @@ -38,8 +39,9 @@
30657
30658 /* SAVE_ARGS below is used only for the .cfi directives it contains. */
30659 CFI_STARTPROC
30660 - SAVE_ARGS
30661 + SAVE_ARGS 8
30662 restore:
30663 - RESTORE_ARGS
30664 + RESTORE_ARGS 1,8
30665 + pax_force_retaddr
30666 ret
30667 CFI_ENDPROC
30668 diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
30669 index e2f5e21..4b22130 100644
30670 --- a/arch/x86/lib/usercopy_32.c
30671 +++ b/arch/x86/lib/usercopy_32.c
30672 @@ -42,11 +42,13 @@ do { \
30673 int __d0; \
30674 might_fault(); \
30675 __asm__ __volatile__( \
30676 + __COPYUSER_SET_ES \
30677 ASM_STAC "\n" \
30678 "0: rep; stosl\n" \
30679 " movl %2,%0\n" \
30680 "1: rep; stosb\n" \
30681 "2: " ASM_CLAC "\n" \
30682 + __COPYUSER_RESTORE_ES \
30683 ".section .fixup,\"ax\"\n" \
30684 "3: lea 0(%2,%0,4),%0\n" \
30685 " jmp 2b\n" \
30686 @@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
30687
30688 #ifdef CONFIG_X86_INTEL_USERCOPY
30689 static unsigned long
30690 -__copy_user_intel(void __user *to, const void *from, unsigned long size)
30691 +__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
30692 {
30693 int d0, d1;
30694 __asm__ __volatile__(
30695 @@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
30696 " .align 2,0x90\n"
30697 "3: movl 0(%4), %%eax\n"
30698 "4: movl 4(%4), %%edx\n"
30699 - "5: movl %%eax, 0(%3)\n"
30700 - "6: movl %%edx, 4(%3)\n"
30701 + "5: "__copyuser_seg" movl %%eax, 0(%3)\n"
30702 + "6: "__copyuser_seg" movl %%edx, 4(%3)\n"
30703 "7: movl 8(%4), %%eax\n"
30704 "8: movl 12(%4),%%edx\n"
30705 - "9: movl %%eax, 8(%3)\n"
30706 - "10: movl %%edx, 12(%3)\n"
30707 + "9: "__copyuser_seg" movl %%eax, 8(%3)\n"
30708 + "10: "__copyuser_seg" movl %%edx, 12(%3)\n"
30709 "11: movl 16(%4), %%eax\n"
30710 "12: movl 20(%4), %%edx\n"
30711 - "13: movl %%eax, 16(%3)\n"
30712 - "14: movl %%edx, 20(%3)\n"
30713 + "13: "__copyuser_seg" movl %%eax, 16(%3)\n"
30714 + "14: "__copyuser_seg" movl %%edx, 20(%3)\n"
30715 "15: movl 24(%4), %%eax\n"
30716 "16: movl 28(%4), %%edx\n"
30717 - "17: movl %%eax, 24(%3)\n"
30718 - "18: movl %%edx, 28(%3)\n"
30719 + "17: "__copyuser_seg" movl %%eax, 24(%3)\n"
30720 + "18: "__copyuser_seg" movl %%edx, 28(%3)\n"
30721 "19: movl 32(%4), %%eax\n"
30722 "20: movl 36(%4), %%edx\n"
30723 - "21: movl %%eax, 32(%3)\n"
30724 - "22: movl %%edx, 36(%3)\n"
30725 + "21: "__copyuser_seg" movl %%eax, 32(%3)\n"
30726 + "22: "__copyuser_seg" movl %%edx, 36(%3)\n"
30727 "23: movl 40(%4), %%eax\n"
30728 "24: movl 44(%4), %%edx\n"
30729 - "25: movl %%eax, 40(%3)\n"
30730 - "26: movl %%edx, 44(%3)\n"
30731 + "25: "__copyuser_seg" movl %%eax, 40(%3)\n"
30732 + "26: "__copyuser_seg" movl %%edx, 44(%3)\n"
30733 "27: movl 48(%4), %%eax\n"
30734 "28: movl 52(%4), %%edx\n"
30735 - "29: movl %%eax, 48(%3)\n"
30736 - "30: movl %%edx, 52(%3)\n"
30737 + "29: "__copyuser_seg" movl %%eax, 48(%3)\n"
30738 + "30: "__copyuser_seg" movl %%edx, 52(%3)\n"
30739 "31: movl 56(%4), %%eax\n"
30740 "32: movl 60(%4), %%edx\n"
30741 - "33: movl %%eax, 56(%3)\n"
30742 - "34: movl %%edx, 60(%3)\n"
30743 + "33: "__copyuser_seg" movl %%eax, 56(%3)\n"
30744 + "34: "__copyuser_seg" movl %%edx, 60(%3)\n"
30745 " addl $-64, %0\n"
30746 " addl $64, %4\n"
30747 " addl $64, %3\n"
30748 @@ -149,10 +151,116 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
30749 " shrl $2, %0\n"
30750 " andl $3, %%eax\n"
30751 " cld\n"
30752 + __COPYUSER_SET_ES
30753 "99: rep; movsl\n"
30754 "36: movl %%eax, %0\n"
30755 "37: rep; movsb\n"
30756 "100:\n"
30757 + __COPYUSER_RESTORE_ES
30758 + ".section .fixup,\"ax\"\n"
30759 + "101: lea 0(%%eax,%0,4),%0\n"
30760 + " jmp 100b\n"
30761 + ".previous\n"
30762 + _ASM_EXTABLE(1b,100b)
30763 + _ASM_EXTABLE(2b,100b)
30764 + _ASM_EXTABLE(3b,100b)
30765 + _ASM_EXTABLE(4b,100b)
30766 + _ASM_EXTABLE(5b,100b)
30767 + _ASM_EXTABLE(6b,100b)
30768 + _ASM_EXTABLE(7b,100b)
30769 + _ASM_EXTABLE(8b,100b)
30770 + _ASM_EXTABLE(9b,100b)
30771 + _ASM_EXTABLE(10b,100b)
30772 + _ASM_EXTABLE(11b,100b)
30773 + _ASM_EXTABLE(12b,100b)
30774 + _ASM_EXTABLE(13b,100b)
30775 + _ASM_EXTABLE(14b,100b)
30776 + _ASM_EXTABLE(15b,100b)
30777 + _ASM_EXTABLE(16b,100b)
30778 + _ASM_EXTABLE(17b,100b)
30779 + _ASM_EXTABLE(18b,100b)
30780 + _ASM_EXTABLE(19b,100b)
30781 + _ASM_EXTABLE(20b,100b)
30782 + _ASM_EXTABLE(21b,100b)
30783 + _ASM_EXTABLE(22b,100b)
30784 + _ASM_EXTABLE(23b,100b)
30785 + _ASM_EXTABLE(24b,100b)
30786 + _ASM_EXTABLE(25b,100b)
30787 + _ASM_EXTABLE(26b,100b)
30788 + _ASM_EXTABLE(27b,100b)
30789 + _ASM_EXTABLE(28b,100b)
30790 + _ASM_EXTABLE(29b,100b)
30791 + _ASM_EXTABLE(30b,100b)
30792 + _ASM_EXTABLE(31b,100b)
30793 + _ASM_EXTABLE(32b,100b)
30794 + _ASM_EXTABLE(33b,100b)
30795 + _ASM_EXTABLE(34b,100b)
30796 + _ASM_EXTABLE(35b,100b)
30797 + _ASM_EXTABLE(36b,100b)
30798 + _ASM_EXTABLE(37b,100b)
30799 + _ASM_EXTABLE(99b,101b)
30800 + : "=&c"(size), "=&D" (d0), "=&S" (d1)
30801 + : "1"(to), "2"(from), "0"(size)
30802 + : "eax", "edx", "memory");
30803 + return size;
30804 +}
30805 +
30806 +static unsigned long
30807 +__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
30808 +{
30809 + int d0, d1;
30810 + __asm__ __volatile__(
30811 + " .align 2,0x90\n"
30812 + "1: "__copyuser_seg" movl 32(%4), %%eax\n"
30813 + " cmpl $67, %0\n"
30814 + " jbe 3f\n"
30815 + "2: "__copyuser_seg" movl 64(%4), %%eax\n"
30816 + " .align 2,0x90\n"
30817 + "3: "__copyuser_seg" movl 0(%4), %%eax\n"
30818 + "4: "__copyuser_seg" movl 4(%4), %%edx\n"
30819 + "5: movl %%eax, 0(%3)\n"
30820 + "6: movl %%edx, 4(%3)\n"
30821 + "7: "__copyuser_seg" movl 8(%4), %%eax\n"
30822 + "8: "__copyuser_seg" movl 12(%4),%%edx\n"
30823 + "9: movl %%eax, 8(%3)\n"
30824 + "10: movl %%edx, 12(%3)\n"
30825 + "11: "__copyuser_seg" movl 16(%4), %%eax\n"
30826 + "12: "__copyuser_seg" movl 20(%4), %%edx\n"
30827 + "13: movl %%eax, 16(%3)\n"
30828 + "14: movl %%edx, 20(%3)\n"
30829 + "15: "__copyuser_seg" movl 24(%4), %%eax\n"
30830 + "16: "__copyuser_seg" movl 28(%4), %%edx\n"
30831 + "17: movl %%eax, 24(%3)\n"
30832 + "18: movl %%edx, 28(%3)\n"
30833 + "19: "__copyuser_seg" movl 32(%4), %%eax\n"
30834 + "20: "__copyuser_seg" movl 36(%4), %%edx\n"
30835 + "21: movl %%eax, 32(%3)\n"
30836 + "22: movl %%edx, 36(%3)\n"
30837 + "23: "__copyuser_seg" movl 40(%4), %%eax\n"
30838 + "24: "__copyuser_seg" movl 44(%4), %%edx\n"
30839 + "25: movl %%eax, 40(%3)\n"
30840 + "26: movl %%edx, 44(%3)\n"
30841 + "27: "__copyuser_seg" movl 48(%4), %%eax\n"
30842 + "28: "__copyuser_seg" movl 52(%4), %%edx\n"
30843 + "29: movl %%eax, 48(%3)\n"
30844 + "30: movl %%edx, 52(%3)\n"
30845 + "31: "__copyuser_seg" movl 56(%4), %%eax\n"
30846 + "32: "__copyuser_seg" movl 60(%4), %%edx\n"
30847 + "33: movl %%eax, 56(%3)\n"
30848 + "34: movl %%edx, 60(%3)\n"
30849 + " addl $-64, %0\n"
30850 + " addl $64, %4\n"
30851 + " addl $64, %3\n"
30852 + " cmpl $63, %0\n"
30853 + " ja 1b\n"
30854 + "35: movl %0, %%eax\n"
30855 + " shrl $2, %0\n"
30856 + " andl $3, %%eax\n"
30857 + " cld\n"
30858 + "99: rep; "__copyuser_seg" movsl\n"
30859 + "36: movl %%eax, %0\n"
30860 + "37: rep; "__copyuser_seg" movsb\n"
30861 + "100:\n"
30862 ".section .fixup,\"ax\"\n"
30863 "101: lea 0(%%eax,%0,4),%0\n"
30864 " jmp 100b\n"
30865 @@ -207,41 +315,41 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
30866 int d0, d1;
30867 __asm__ __volatile__(
30868 " .align 2,0x90\n"
30869 - "0: movl 32(%4), %%eax\n"
30870 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
30871 " cmpl $67, %0\n"
30872 " jbe 2f\n"
30873 - "1: movl 64(%4), %%eax\n"
30874 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
30875 " .align 2,0x90\n"
30876 - "2: movl 0(%4), %%eax\n"
30877 - "21: movl 4(%4), %%edx\n"
30878 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
30879 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
30880 " movl %%eax, 0(%3)\n"
30881 " movl %%edx, 4(%3)\n"
30882 - "3: movl 8(%4), %%eax\n"
30883 - "31: movl 12(%4),%%edx\n"
30884 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
30885 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
30886 " movl %%eax, 8(%3)\n"
30887 " movl %%edx, 12(%3)\n"
30888 - "4: movl 16(%4), %%eax\n"
30889 - "41: movl 20(%4), %%edx\n"
30890 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
30891 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
30892 " movl %%eax, 16(%3)\n"
30893 " movl %%edx, 20(%3)\n"
30894 - "10: movl 24(%4), %%eax\n"
30895 - "51: movl 28(%4), %%edx\n"
30896 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
30897 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
30898 " movl %%eax, 24(%3)\n"
30899 " movl %%edx, 28(%3)\n"
30900 - "11: movl 32(%4), %%eax\n"
30901 - "61: movl 36(%4), %%edx\n"
30902 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
30903 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
30904 " movl %%eax, 32(%3)\n"
30905 " movl %%edx, 36(%3)\n"
30906 - "12: movl 40(%4), %%eax\n"
30907 - "71: movl 44(%4), %%edx\n"
30908 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
30909 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
30910 " movl %%eax, 40(%3)\n"
30911 " movl %%edx, 44(%3)\n"
30912 - "13: movl 48(%4), %%eax\n"
30913 - "81: movl 52(%4), %%edx\n"
30914 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
30915 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
30916 " movl %%eax, 48(%3)\n"
30917 " movl %%edx, 52(%3)\n"
30918 - "14: movl 56(%4), %%eax\n"
30919 - "91: movl 60(%4), %%edx\n"
30920 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
30921 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
30922 " movl %%eax, 56(%3)\n"
30923 " movl %%edx, 60(%3)\n"
30924 " addl $-64, %0\n"
30925 @@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
30926 " shrl $2, %0\n"
30927 " andl $3, %%eax\n"
30928 " cld\n"
30929 - "6: rep; movsl\n"
30930 + "6: rep; "__copyuser_seg" movsl\n"
30931 " movl %%eax,%0\n"
30932 - "7: rep; movsb\n"
30933 + "7: rep; "__copyuser_seg" movsb\n"
30934 "8:\n"
30935 ".section .fixup,\"ax\"\n"
30936 "9: lea 0(%%eax,%0,4),%0\n"
30937 @@ -305,41 +413,41 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
30938
30939 __asm__ __volatile__(
30940 " .align 2,0x90\n"
30941 - "0: movl 32(%4), %%eax\n"
30942 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
30943 " cmpl $67, %0\n"
30944 " jbe 2f\n"
30945 - "1: movl 64(%4), %%eax\n"
30946 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
30947 " .align 2,0x90\n"
30948 - "2: movl 0(%4), %%eax\n"
30949 - "21: movl 4(%4), %%edx\n"
30950 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
30951 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
30952 " movnti %%eax, 0(%3)\n"
30953 " movnti %%edx, 4(%3)\n"
30954 - "3: movl 8(%4), %%eax\n"
30955 - "31: movl 12(%4),%%edx\n"
30956 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
30957 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
30958 " movnti %%eax, 8(%3)\n"
30959 " movnti %%edx, 12(%3)\n"
30960 - "4: movl 16(%4), %%eax\n"
30961 - "41: movl 20(%4), %%edx\n"
30962 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
30963 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
30964 " movnti %%eax, 16(%3)\n"
30965 " movnti %%edx, 20(%3)\n"
30966 - "10: movl 24(%4), %%eax\n"
30967 - "51: movl 28(%4), %%edx\n"
30968 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
30969 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
30970 " movnti %%eax, 24(%3)\n"
30971 " movnti %%edx, 28(%3)\n"
30972 - "11: movl 32(%4), %%eax\n"
30973 - "61: movl 36(%4), %%edx\n"
30974 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
30975 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
30976 " movnti %%eax, 32(%3)\n"
30977 " movnti %%edx, 36(%3)\n"
30978 - "12: movl 40(%4), %%eax\n"
30979 - "71: movl 44(%4), %%edx\n"
30980 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
30981 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
30982 " movnti %%eax, 40(%3)\n"
30983 " movnti %%edx, 44(%3)\n"
30984 - "13: movl 48(%4), %%eax\n"
30985 - "81: movl 52(%4), %%edx\n"
30986 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
30987 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
30988 " movnti %%eax, 48(%3)\n"
30989 " movnti %%edx, 52(%3)\n"
30990 - "14: movl 56(%4), %%eax\n"
30991 - "91: movl 60(%4), %%edx\n"
30992 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
30993 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
30994 " movnti %%eax, 56(%3)\n"
30995 " movnti %%edx, 60(%3)\n"
30996 " addl $-64, %0\n"
30997 @@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
30998 " shrl $2, %0\n"
30999 " andl $3, %%eax\n"
31000 " cld\n"
31001 - "6: rep; movsl\n"
31002 + "6: rep; "__copyuser_seg" movsl\n"
31003 " movl %%eax,%0\n"
31004 - "7: rep; movsb\n"
31005 + "7: rep; "__copyuser_seg" movsb\n"
31006 "8:\n"
31007 ".section .fixup,\"ax\"\n"
31008 "9: lea 0(%%eax,%0,4),%0\n"
31009 @@ -399,41 +507,41 @@ static unsigned long __copy_user_intel_nocache(void *to,
31010
31011 __asm__ __volatile__(
31012 " .align 2,0x90\n"
31013 - "0: movl 32(%4), %%eax\n"
31014 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31015 " cmpl $67, %0\n"
31016 " jbe 2f\n"
31017 - "1: movl 64(%4), %%eax\n"
31018 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31019 " .align 2,0x90\n"
31020 - "2: movl 0(%4), %%eax\n"
31021 - "21: movl 4(%4), %%edx\n"
31022 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31023 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31024 " movnti %%eax, 0(%3)\n"
31025 " movnti %%edx, 4(%3)\n"
31026 - "3: movl 8(%4), %%eax\n"
31027 - "31: movl 12(%4),%%edx\n"
31028 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31029 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31030 " movnti %%eax, 8(%3)\n"
31031 " movnti %%edx, 12(%3)\n"
31032 - "4: movl 16(%4), %%eax\n"
31033 - "41: movl 20(%4), %%edx\n"
31034 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31035 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31036 " movnti %%eax, 16(%3)\n"
31037 " movnti %%edx, 20(%3)\n"
31038 - "10: movl 24(%4), %%eax\n"
31039 - "51: movl 28(%4), %%edx\n"
31040 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31041 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31042 " movnti %%eax, 24(%3)\n"
31043 " movnti %%edx, 28(%3)\n"
31044 - "11: movl 32(%4), %%eax\n"
31045 - "61: movl 36(%4), %%edx\n"
31046 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31047 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31048 " movnti %%eax, 32(%3)\n"
31049 " movnti %%edx, 36(%3)\n"
31050 - "12: movl 40(%4), %%eax\n"
31051 - "71: movl 44(%4), %%edx\n"
31052 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31053 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31054 " movnti %%eax, 40(%3)\n"
31055 " movnti %%edx, 44(%3)\n"
31056 - "13: movl 48(%4), %%eax\n"
31057 - "81: movl 52(%4), %%edx\n"
31058 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31059 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31060 " movnti %%eax, 48(%3)\n"
31061 " movnti %%edx, 52(%3)\n"
31062 - "14: movl 56(%4), %%eax\n"
31063 - "91: movl 60(%4), %%edx\n"
31064 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31065 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31066 " movnti %%eax, 56(%3)\n"
31067 " movnti %%edx, 60(%3)\n"
31068 " addl $-64, %0\n"
31069 @@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
31070 " shrl $2, %0\n"
31071 " andl $3, %%eax\n"
31072 " cld\n"
31073 - "6: rep; movsl\n"
31074 + "6: rep; "__copyuser_seg" movsl\n"
31075 " movl %%eax,%0\n"
31076 - "7: rep; movsb\n"
31077 + "7: rep; "__copyuser_seg" movsb\n"
31078 "8:\n"
31079 ".section .fixup,\"ax\"\n"
31080 "9: lea 0(%%eax,%0,4),%0\n"
31081 @@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
31082 */
31083 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
31084 unsigned long size);
31085 -unsigned long __copy_user_intel(void __user *to, const void *from,
31086 +unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
31087 + unsigned long size);
31088 +unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
31089 unsigned long size);
31090 unsigned long __copy_user_zeroing_intel_nocache(void *to,
31091 const void __user *from, unsigned long size);
31092 #endif /* CONFIG_X86_INTEL_USERCOPY */
31093
31094 /* Generic arbitrary sized copy. */
31095 -#define __copy_user(to, from, size) \
31096 +#define __copy_user(to, from, size, prefix, set, restore) \
31097 do { \
31098 int __d0, __d1, __d2; \
31099 __asm__ __volatile__( \
31100 + set \
31101 " cmp $7,%0\n" \
31102 " jbe 1f\n" \
31103 " movl %1,%0\n" \
31104 " negl %0\n" \
31105 " andl $7,%0\n" \
31106 " subl %0,%3\n" \
31107 - "4: rep; movsb\n" \
31108 + "4: rep; "prefix"movsb\n" \
31109 " movl %3,%0\n" \
31110 " shrl $2,%0\n" \
31111 " andl $3,%3\n" \
31112 " .align 2,0x90\n" \
31113 - "0: rep; movsl\n" \
31114 + "0: rep; "prefix"movsl\n" \
31115 " movl %3,%0\n" \
31116 - "1: rep; movsb\n" \
31117 + "1: rep; "prefix"movsb\n" \
31118 "2:\n" \
31119 + restore \
31120 ".section .fixup,\"ax\"\n" \
31121 "5: addl %3,%0\n" \
31122 " jmp 2b\n" \
31123 @@ -538,14 +650,14 @@ do { \
31124 " negl %0\n" \
31125 " andl $7,%0\n" \
31126 " subl %0,%3\n" \
31127 - "4: rep; movsb\n" \
31128 + "4: rep; "__copyuser_seg"movsb\n" \
31129 " movl %3,%0\n" \
31130 " shrl $2,%0\n" \
31131 " andl $3,%3\n" \
31132 " .align 2,0x90\n" \
31133 - "0: rep; movsl\n" \
31134 + "0: rep; "__copyuser_seg"movsl\n" \
31135 " movl %3,%0\n" \
31136 - "1: rep; movsb\n" \
31137 + "1: rep; "__copyuser_seg"movsb\n" \
31138 "2:\n" \
31139 ".section .fixup,\"ax\"\n" \
31140 "5: addl %3,%0\n" \
31141 @@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
31142 {
31143 stac();
31144 if (movsl_is_ok(to, from, n))
31145 - __copy_user(to, from, n);
31146 + __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
31147 else
31148 - n = __copy_user_intel(to, from, n);
31149 + n = __generic_copy_to_user_intel(to, from, n);
31150 clac();
31151 return n;
31152 }
31153 @@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
31154 {
31155 stac();
31156 if (movsl_is_ok(to, from, n))
31157 - __copy_user(to, from, n);
31158 + __copy_user(to, from, n, __copyuser_seg, "", "");
31159 else
31160 - n = __copy_user_intel((void __user *)to,
31161 - (const void *)from, n);
31162 + n = __generic_copy_from_user_intel(to, from, n);
31163 clac();
31164 return n;
31165 }
31166 @@ -632,58 +743,38 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
31167 if (n > 64 && cpu_has_xmm2)
31168 n = __copy_user_intel_nocache(to, from, n);
31169 else
31170 - __copy_user(to, from, n);
31171 + __copy_user(to, from, n, __copyuser_seg, "", "");
31172 #else
31173 - __copy_user(to, from, n);
31174 + __copy_user(to, from, n, __copyuser_seg, "", "");
31175 #endif
31176 clac();
31177 return n;
31178 }
31179 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
31180
31181 -/**
31182 - * copy_to_user: - Copy a block of data into user space.
31183 - * @to: Destination address, in user space.
31184 - * @from: Source address, in kernel space.
31185 - * @n: Number of bytes to copy.
31186 - *
31187 - * Context: User context only. This function may sleep.
31188 - *
31189 - * Copy data from kernel space to user space.
31190 - *
31191 - * Returns number of bytes that could not be copied.
31192 - * On success, this will be zero.
31193 - */
31194 -unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
31195 +#ifdef CONFIG_PAX_MEMORY_UDEREF
31196 +void __set_fs(mm_segment_t x)
31197 {
31198 - if (access_ok(VERIFY_WRITE, to, n))
31199 - n = __copy_to_user(to, from, n);
31200 - return n;
31201 + switch (x.seg) {
31202 + case 0:
31203 + loadsegment(gs, 0);
31204 + break;
31205 + case TASK_SIZE_MAX:
31206 + loadsegment(gs, __USER_DS);
31207 + break;
31208 + case -1UL:
31209 + loadsegment(gs, __KERNEL_DS);
31210 + break;
31211 + default:
31212 + BUG();
31213 + }
31214 }
31215 -EXPORT_SYMBOL(_copy_to_user);
31216 +EXPORT_SYMBOL(__set_fs);
31217
31218 -/**
31219 - * copy_from_user: - Copy a block of data from user space.
31220 - * @to: Destination address, in kernel space.
31221 - * @from: Source address, in user space.
31222 - * @n: Number of bytes to copy.
31223 - *
31224 - * Context: User context only. This function may sleep.
31225 - *
31226 - * Copy data from user space to kernel space.
31227 - *
31228 - * Returns number of bytes that could not be copied.
31229 - * On success, this will be zero.
31230 - *
31231 - * If some data could not be copied, this function will pad the copied
31232 - * data to the requested size using zero bytes.
31233 - */
31234 -unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
31235 +void set_fs(mm_segment_t x)
31236 {
31237 - if (access_ok(VERIFY_READ, from, n))
31238 - n = __copy_from_user(to, from, n);
31239 - else
31240 - memset(to, 0, n);
31241 - return n;
31242 + current_thread_info()->addr_limit = x;
31243 + __set_fs(x);
31244 }
31245 -EXPORT_SYMBOL(_copy_from_user);
31246 +EXPORT_SYMBOL(set_fs);
31247 +#endif
31248 diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
31249 index c905e89..01ab928 100644
31250 --- a/arch/x86/lib/usercopy_64.c
31251 +++ b/arch/x86/lib/usercopy_64.c
31252 @@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31253 might_fault();
31254 /* no memory constraint because it doesn't change any memory gcc knows
31255 about */
31256 + pax_open_userland();
31257 stac();
31258 asm volatile(
31259 " testq %[size8],%[size8]\n"
31260 @@ -39,9 +40,10 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31261 _ASM_EXTABLE(0b,3b)
31262 _ASM_EXTABLE(1b,2b)
31263 : [size8] "=&c"(size), [dst] "=&D" (__d0)
31264 - : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
31265 + : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
31266 [zero] "r" (0UL), [eight] "r" (8UL));
31267 clac();
31268 + pax_close_userland();
31269 return size;
31270 }
31271 EXPORT_SYMBOL(__clear_user);
31272 @@ -54,12 +56,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
31273 }
31274 EXPORT_SYMBOL(clear_user);
31275
31276 -unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
31277 +unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
31278 {
31279 - if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) {
31280 - return copy_user_generic((__force void *)to, (__force void *)from, len);
31281 - }
31282 - return len;
31283 + if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
31284 + return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
31285 + return len;
31286 }
31287 EXPORT_SYMBOL(copy_in_user);
31288
31289 @@ -69,11 +70,13 @@ EXPORT_SYMBOL(copy_in_user);
31290 * it is not necessary to optimize tail handling.
31291 */
31292 __visible unsigned long
31293 -copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
31294 +copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest)
31295 {
31296 char c;
31297 unsigned zero_len;
31298
31299 + clac();
31300 + pax_close_userland();
31301 for (; len; --len, to++) {
31302 if (__get_user_nocheck(c, from++, sizeof(char)))
31303 break;
31304 @@ -84,6 +87,5 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
31305 for (c = 0, zero_len = len; zerorest && zero_len; --zero_len)
31306 if (__put_user_nocheck(c, to++, sizeof(char)))
31307 break;
31308 - clac();
31309 return len;
31310 }
31311 diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
31312 index 6a19ad9..1c48f9a 100644
31313 --- a/arch/x86/mm/Makefile
31314 +++ b/arch/x86/mm/Makefile
31315 @@ -30,3 +30,7 @@ obj-$(CONFIG_ACPI_NUMA) += srat.o
31316 obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
31317
31318 obj-$(CONFIG_MEMTEST) += memtest.o
31319 +
31320 +quote:="
31321 +obj-$(CONFIG_X86_64) += uderef_64.o
31322 +CFLAGS_uderef_64.o := $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
31323 diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
31324 index 903ec1e..c4166b2 100644
31325 --- a/arch/x86/mm/extable.c
31326 +++ b/arch/x86/mm/extable.c
31327 @@ -6,12 +6,24 @@
31328 static inline unsigned long
31329 ex_insn_addr(const struct exception_table_entry *x)
31330 {
31331 - return (unsigned long)&x->insn + x->insn;
31332 + unsigned long reloc = 0;
31333 +
31334 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31335 + reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31336 +#endif
31337 +
31338 + return (unsigned long)&x->insn + x->insn + reloc;
31339 }
31340 static inline unsigned long
31341 ex_fixup_addr(const struct exception_table_entry *x)
31342 {
31343 - return (unsigned long)&x->fixup + x->fixup;
31344 + unsigned long reloc = 0;
31345 +
31346 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31347 + reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31348 +#endif
31349 +
31350 + return (unsigned long)&x->fixup + x->fixup + reloc;
31351 }
31352
31353 int fixup_exception(struct pt_regs *regs)
31354 @@ -20,7 +32,7 @@ int fixup_exception(struct pt_regs *regs)
31355 unsigned long new_ip;
31356
31357 #ifdef CONFIG_PNPBIOS
31358 - if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
31359 + if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
31360 extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
31361 extern u32 pnp_bios_is_utter_crap;
31362 pnp_bios_is_utter_crap = 1;
31363 @@ -145,6 +157,13 @@ void sort_extable(struct exception_table_entry *start,
31364 i += 4;
31365 p->fixup -= i;
31366 i += 4;
31367 +
31368 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31369 + BUILD_BUG_ON(!IS_ENABLED(CONFIG_BUILDTIME_EXTABLE_SORT));
31370 + p->insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31371 + p->fixup -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31372 +#endif
31373 +
31374 }
31375 }
31376
31377 diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
31378 index 8e57229..31cce89 100644
31379 --- a/arch/x86/mm/fault.c
31380 +++ b/arch/x86/mm/fault.c
31381 @@ -14,11 +14,18 @@
31382 #include <linux/hugetlb.h> /* hstate_index_to_shift */
31383 #include <linux/prefetch.h> /* prefetchw */
31384 #include <linux/context_tracking.h> /* exception_enter(), ... */
31385 +#include <linux/unistd.h>
31386 +#include <linux/compiler.h>
31387
31388 #include <asm/traps.h> /* dotraplinkage, ... */
31389 #include <asm/pgalloc.h> /* pgd_*(), ... */
31390 #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */
31391 #include <asm/fixmap.h> /* VSYSCALL_START */
31392 +#include <asm/tlbflush.h>
31393 +
31394 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31395 +#include <asm/stacktrace.h>
31396 +#endif
31397
31398 #define CREATE_TRACE_POINTS
31399 #include <asm/trace/exceptions.h>
31400 @@ -59,7 +66,7 @@ static inline int __kprobes kprobes_fault(struct pt_regs *regs)
31401 int ret = 0;
31402
31403 /* kprobe_running() needs smp_processor_id() */
31404 - if (kprobes_built_in() && !user_mode_vm(regs)) {
31405 + if (kprobes_built_in() && !user_mode(regs)) {
31406 preempt_disable();
31407 if (kprobe_running() && kprobe_fault_handler(regs, 14))
31408 ret = 1;
31409 @@ -120,7 +127,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
31410 return !instr_lo || (instr_lo>>1) == 1;
31411 case 0x00:
31412 /* Prefetch instruction is 0x0F0D or 0x0F18 */
31413 - if (probe_kernel_address(instr, opcode))
31414 + if (user_mode(regs)) {
31415 + if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31416 + return 0;
31417 + } else if (probe_kernel_address(instr, opcode))
31418 return 0;
31419
31420 *prefetch = (instr_lo == 0xF) &&
31421 @@ -154,7 +164,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
31422 while (instr < max_instr) {
31423 unsigned char opcode;
31424
31425 - if (probe_kernel_address(instr, opcode))
31426 + if (user_mode(regs)) {
31427 + if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31428 + break;
31429 + } else if (probe_kernel_address(instr, opcode))
31430 break;
31431
31432 instr++;
31433 @@ -185,6 +198,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
31434 force_sig_info(si_signo, &info, tsk);
31435 }
31436
31437 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
31438 +static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
31439 +#endif
31440 +
31441 +#ifdef CONFIG_PAX_EMUTRAMP
31442 +static int pax_handle_fetch_fault(struct pt_regs *regs);
31443 +#endif
31444 +
31445 +#ifdef CONFIG_PAX_PAGEEXEC
31446 +static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
31447 +{
31448 + pgd_t *pgd;
31449 + pud_t *pud;
31450 + pmd_t *pmd;
31451 +
31452 + pgd = pgd_offset(mm, address);
31453 + if (!pgd_present(*pgd))
31454 + return NULL;
31455 + pud = pud_offset(pgd, address);
31456 + if (!pud_present(*pud))
31457 + return NULL;
31458 + pmd = pmd_offset(pud, address);
31459 + if (!pmd_present(*pmd))
31460 + return NULL;
31461 + return pmd;
31462 +}
31463 +#endif
31464 +
31465 DEFINE_SPINLOCK(pgd_lock);
31466 LIST_HEAD(pgd_list);
31467
31468 @@ -235,10 +276,27 @@ void vmalloc_sync_all(void)
31469 for (address = VMALLOC_START & PMD_MASK;
31470 address >= TASK_SIZE && address < FIXADDR_TOP;
31471 address += PMD_SIZE) {
31472 +
31473 +#ifdef CONFIG_PAX_PER_CPU_PGD
31474 + unsigned long cpu;
31475 +#else
31476 struct page *page;
31477 +#endif
31478
31479 spin_lock(&pgd_lock);
31480 +
31481 +#ifdef CONFIG_PAX_PER_CPU_PGD
31482 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
31483 + pgd_t *pgd = get_cpu_pgd(cpu, user);
31484 + pmd_t *ret;
31485 +
31486 + ret = vmalloc_sync_one(pgd, address);
31487 + if (!ret)
31488 + break;
31489 + pgd = get_cpu_pgd(cpu, kernel);
31490 +#else
31491 list_for_each_entry(page, &pgd_list, lru) {
31492 + pgd_t *pgd;
31493 spinlock_t *pgt_lock;
31494 pmd_t *ret;
31495
31496 @@ -246,8 +304,14 @@ void vmalloc_sync_all(void)
31497 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
31498
31499 spin_lock(pgt_lock);
31500 - ret = vmalloc_sync_one(page_address(page), address);
31501 + pgd = page_address(page);
31502 +#endif
31503 +
31504 + ret = vmalloc_sync_one(pgd, address);
31505 +
31506 +#ifndef CONFIG_PAX_PER_CPU_PGD
31507 spin_unlock(pgt_lock);
31508 +#endif
31509
31510 if (!ret)
31511 break;
31512 @@ -281,6 +345,12 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
31513 * an interrupt in the middle of a task switch..
31514 */
31515 pgd_paddr = read_cr3();
31516 +
31517 +#ifdef CONFIG_PAX_PER_CPU_PGD
31518 + BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (pgd_paddr & __PHYSICAL_MASK));
31519 + vmalloc_sync_one(__va(pgd_paddr + PAGE_SIZE), address);
31520 +#endif
31521 +
31522 pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
31523 if (!pmd_k)
31524 return -1;
31525 @@ -376,11 +446,25 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
31526 * happen within a race in page table update. In the later
31527 * case just flush:
31528 */
31529 - pgd = pgd_offset(current->active_mm, address);
31530 +
31531 pgd_ref = pgd_offset_k(address);
31532 if (pgd_none(*pgd_ref))
31533 return -1;
31534
31535 +#ifdef CONFIG_PAX_PER_CPU_PGD
31536 + BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (read_cr3() & __PHYSICAL_MASK));
31537 + pgd = pgd_offset_cpu(smp_processor_id(), user, address);
31538 + if (pgd_none(*pgd)) {
31539 + set_pgd(pgd, *pgd_ref);
31540 + arch_flush_lazy_mmu_mode();
31541 + } else {
31542 + BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
31543 + }
31544 + pgd = pgd_offset_cpu(smp_processor_id(), kernel, address);
31545 +#else
31546 + pgd = pgd_offset(current->active_mm, address);
31547 +#endif
31548 +
31549 if (pgd_none(*pgd)) {
31550 set_pgd(pgd, *pgd_ref);
31551 arch_flush_lazy_mmu_mode();
31552 @@ -546,7 +630,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
31553 static int is_errata100(struct pt_regs *regs, unsigned long address)
31554 {
31555 #ifdef CONFIG_X86_64
31556 - if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
31557 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
31558 return 1;
31559 #endif
31560 return 0;
31561 @@ -573,7 +657,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
31562 }
31563
31564 static const char nx_warning[] = KERN_CRIT
31565 -"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
31566 +"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
31567
31568 static void
31569 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31570 @@ -582,7 +666,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31571 if (!oops_may_print())
31572 return;
31573
31574 - if (error_code & PF_INSTR) {
31575 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
31576 unsigned int level;
31577 pgd_t *pgd;
31578 pte_t *pte;
31579 @@ -593,9 +677,21 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
31580 pte = lookup_address_in_pgd(pgd, address, &level);
31581
31582 if (pte && pte_present(*pte) && !pte_exec(*pte))
31583 - printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
31584 + printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
31585 }
31586
31587 +#ifdef CONFIG_PAX_KERNEXEC
31588 + if (init_mm.start_code <= address && address < init_mm.end_code) {
31589 + if (current->signal->curr_ip)
31590 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
31591 + &current->signal->curr_ip, current->comm, task_pid_nr(current),
31592 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
31593 + else
31594 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
31595 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
31596 + }
31597 +#endif
31598 +
31599 printk(KERN_ALERT "BUG: unable to handle kernel ");
31600 if (address < PAGE_SIZE)
31601 printk(KERN_CONT "NULL pointer dereference");
31602 @@ -776,6 +872,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
31603 return;
31604 }
31605 #endif
31606 +
31607 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
31608 + if (pax_is_fetch_fault(regs, error_code, address)) {
31609 +
31610 +#ifdef CONFIG_PAX_EMUTRAMP
31611 + switch (pax_handle_fetch_fault(regs)) {
31612 + case 2:
31613 + return;
31614 + }
31615 +#endif
31616 +
31617 + pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
31618 + do_group_exit(SIGKILL);
31619 + }
31620 +#endif
31621 +
31622 /* Kernel addresses are always protection faults: */
31623 if (address >= TASK_SIZE)
31624 error_code |= PF_PROT;
31625 @@ -861,7 +973,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
31626 if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
31627 printk(KERN_ERR
31628 "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
31629 - tsk->comm, tsk->pid, address);
31630 + tsk->comm, task_pid_nr(tsk), address);
31631 code = BUS_MCEERR_AR;
31632 }
31633 #endif
31634 @@ -915,6 +1027,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
31635 return 1;
31636 }
31637
31638 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
31639 +static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
31640 +{
31641 + pte_t *pte;
31642 + pmd_t *pmd;
31643 + spinlock_t *ptl;
31644 + unsigned char pte_mask;
31645 +
31646 + if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
31647 + !(mm->pax_flags & MF_PAX_PAGEEXEC))
31648 + return 0;
31649 +
31650 + /* PaX: it's our fault, let's handle it if we can */
31651 +
31652 + /* PaX: take a look at read faults before acquiring any locks */
31653 + if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
31654 + /* instruction fetch attempt from a protected page in user mode */
31655 + up_read(&mm->mmap_sem);
31656 +
31657 +#ifdef CONFIG_PAX_EMUTRAMP
31658 + switch (pax_handle_fetch_fault(regs)) {
31659 + case 2:
31660 + return 1;
31661 + }
31662 +#endif
31663 +
31664 + pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
31665 + do_group_exit(SIGKILL);
31666 + }
31667 +
31668 + pmd = pax_get_pmd(mm, address);
31669 + if (unlikely(!pmd))
31670 + return 0;
31671 +
31672 + pte = pte_offset_map_lock(mm, pmd, address, &ptl);
31673 + if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
31674 + pte_unmap_unlock(pte, ptl);
31675 + return 0;
31676 + }
31677 +
31678 + if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
31679 + /* write attempt to a protected page in user mode */
31680 + pte_unmap_unlock(pte, ptl);
31681 + return 0;
31682 + }
31683 +
31684 +#ifdef CONFIG_SMP
31685 + if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
31686 +#else
31687 + if (likely(address > get_limit(regs->cs)))
31688 +#endif
31689 + {
31690 + set_pte(pte, pte_mkread(*pte));
31691 + __flush_tlb_one(address);
31692 + pte_unmap_unlock(pte, ptl);
31693 + up_read(&mm->mmap_sem);
31694 + return 1;
31695 + }
31696 +
31697 + pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
31698 +
31699 + /*
31700 + * PaX: fill DTLB with user rights and retry
31701 + */
31702 + __asm__ __volatile__ (
31703 + "orb %2,(%1)\n"
31704 +#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
31705 +/*
31706 + * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
31707 + * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
31708 + * page fault when examined during a TLB load attempt. this is true not only
31709 + * for PTEs holding a non-present entry but also present entries that will
31710 + * raise a page fault (such as those set up by PaX, or the copy-on-write
31711 + * mechanism). in effect it means that we do *not* need to flush the TLBs
31712 + * for our target pages since their PTEs are simply not in the TLBs at all.
31713 +
31714 + * the best thing in omitting it is that we gain around 15-20% speed in the
31715 + * fast path of the page fault handler and can get rid of tracing since we
31716 + * can no longer flush unintended entries.
31717 + */
31718 + "invlpg (%0)\n"
31719 +#endif
31720 + __copyuser_seg"testb $0,(%0)\n"
31721 + "xorb %3,(%1)\n"
31722 + :
31723 + : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
31724 + : "memory", "cc");
31725 + pte_unmap_unlock(pte, ptl);
31726 + up_read(&mm->mmap_sem);
31727 + return 1;
31728 +}
31729 +#endif
31730 +
31731 /*
31732 * Handle a spurious fault caused by a stale TLB entry.
31733 *
31734 @@ -981,6 +1186,9 @@ int show_unhandled_signals = 1;
31735 static inline int
31736 access_error(unsigned long error_code, struct vm_area_struct *vma)
31737 {
31738 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
31739 + return 1;
31740 +
31741 if (error_code & PF_WRITE) {
31742 /* write, present and write, not present: */
31743 if (unlikely(!(vma->vm_flags & VM_WRITE)))
31744 @@ -1015,7 +1223,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
31745 if (error_code & PF_USER)
31746 return false;
31747
31748 - if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
31749 + if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
31750 return false;
31751
31752 return true;
31753 @@ -1043,6 +1251,22 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
31754 tsk = current;
31755 mm = tsk->mm;
31756
31757 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31758 + if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
31759 + if (!search_exception_tables(regs->ip)) {
31760 + printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
31761 + bad_area_nosemaphore(regs, error_code, address);
31762 + return;
31763 + }
31764 + if (address < pax_user_shadow_base) {
31765 + printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
31766 + printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip);
31767 + show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR);
31768 + } else
31769 + address -= pax_user_shadow_base;
31770 + }
31771 +#endif
31772 +
31773 /*
31774 * Detect and handle instructions that would cause a page fault for
31775 * both a tracked kernel page and a userspace page.
31776 @@ -1120,7 +1344,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
31777 * User-mode registers count as a user access even for any
31778 * potential system fault or CPU buglet:
31779 */
31780 - if (user_mode_vm(regs)) {
31781 + if (user_mode(regs)) {
31782 local_irq_enable();
31783 error_code |= PF_USER;
31784 flags |= FAULT_FLAG_USER;
31785 @@ -1167,6 +1391,11 @@ retry:
31786 might_sleep();
31787 }
31788
31789 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
31790 + if (pax_handle_pageexec_fault(regs, mm, address, error_code))
31791 + return;
31792 +#endif
31793 +
31794 vma = find_vma(mm, address);
31795 if (unlikely(!vma)) {
31796 bad_area(regs, error_code, address);
31797 @@ -1178,18 +1407,24 @@ retry:
31798 bad_area(regs, error_code, address);
31799 return;
31800 }
31801 - if (error_code & PF_USER) {
31802 - /*
31803 - * Accessing the stack below %sp is always a bug.
31804 - * The large cushion allows instructions like enter
31805 - * and pusha to work. ("enter $65535, $31" pushes
31806 - * 32 pointers and then decrements %sp by 65535.)
31807 - */
31808 - if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
31809 - bad_area(regs, error_code, address);
31810 - return;
31811 - }
31812 + /*
31813 + * Accessing the stack below %sp is always a bug.
31814 + * The large cushion allows instructions like enter
31815 + * and pusha to work. ("enter $65535, $31" pushes
31816 + * 32 pointers and then decrements %sp by 65535.)
31817 + */
31818 + if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
31819 + bad_area(regs, error_code, address);
31820 + return;
31821 }
31822 +
31823 +#ifdef CONFIG_PAX_SEGMEXEC
31824 + if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
31825 + bad_area(regs, error_code, address);
31826 + return;
31827 + }
31828 +#endif
31829 +
31830 if (unlikely(expand_stack(vma, address))) {
31831 bad_area(regs, error_code, address);
31832 return;
31833 @@ -1301,3 +1536,292 @@ trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
31834 exception_exit(prev_state);
31835 }
31836 #endif /* CONFIG_TRACING */
31837 +
31838 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
31839 +static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
31840 +{
31841 + struct mm_struct *mm = current->mm;
31842 + unsigned long ip = regs->ip;
31843 +
31844 + if (v8086_mode(regs))
31845 + ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
31846 +
31847 +#ifdef CONFIG_PAX_PAGEEXEC
31848 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
31849 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
31850 + return true;
31851 + if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
31852 + return true;
31853 + return false;
31854 + }
31855 +#endif
31856 +
31857 +#ifdef CONFIG_PAX_SEGMEXEC
31858 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
31859 + if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
31860 + return true;
31861 + return false;
31862 + }
31863 +#endif
31864 +
31865 + return false;
31866 +}
31867 +#endif
31868 +
31869 +#ifdef CONFIG_PAX_EMUTRAMP
31870 +static int pax_handle_fetch_fault_32(struct pt_regs *regs)
31871 +{
31872 + int err;
31873 +
31874 + do { /* PaX: libffi trampoline emulation */
31875 + unsigned char mov, jmp;
31876 + unsigned int addr1, addr2;
31877 +
31878 +#ifdef CONFIG_X86_64
31879 + if ((regs->ip + 9) >> 32)
31880 + break;
31881 +#endif
31882 +
31883 + err = get_user(mov, (unsigned char __user *)regs->ip);
31884 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
31885 + err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
31886 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
31887 +
31888 + if (err)
31889 + break;
31890 +
31891 + if (mov == 0xB8 && jmp == 0xE9) {
31892 + regs->ax = addr1;
31893 + regs->ip = (unsigned int)(regs->ip + addr2 + 10);
31894 + return 2;
31895 + }
31896 + } while (0);
31897 +
31898 + do { /* PaX: gcc trampoline emulation #1 */
31899 + unsigned char mov1, mov2;
31900 + unsigned short jmp;
31901 + unsigned int addr1, addr2;
31902 +
31903 +#ifdef CONFIG_X86_64
31904 + if ((regs->ip + 11) >> 32)
31905 + break;
31906 +#endif
31907 +
31908 + err = get_user(mov1, (unsigned char __user *)regs->ip);
31909 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
31910 + err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
31911 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
31912 + err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
31913 +
31914 + if (err)
31915 + break;
31916 +
31917 + if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
31918 + regs->cx = addr1;
31919 + regs->ax = addr2;
31920 + regs->ip = addr2;
31921 + return 2;
31922 + }
31923 + } while (0);
31924 +
31925 + do { /* PaX: gcc trampoline emulation #2 */
31926 + unsigned char mov, jmp;
31927 + unsigned int addr1, addr2;
31928 +
31929 +#ifdef CONFIG_X86_64
31930 + if ((regs->ip + 9) >> 32)
31931 + break;
31932 +#endif
31933 +
31934 + err = get_user(mov, (unsigned char __user *)regs->ip);
31935 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
31936 + err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
31937 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
31938 +
31939 + if (err)
31940 + break;
31941 +
31942 + if (mov == 0xB9 && jmp == 0xE9) {
31943 + regs->cx = addr1;
31944 + regs->ip = (unsigned int)(regs->ip + addr2 + 10);
31945 + return 2;
31946 + }
31947 + } while (0);
31948 +
31949 + return 1; /* PaX in action */
31950 +}
31951 +
31952 +#ifdef CONFIG_X86_64
31953 +static int pax_handle_fetch_fault_64(struct pt_regs *regs)
31954 +{
31955 + int err;
31956 +
31957 + do { /* PaX: libffi trampoline emulation */
31958 + unsigned short mov1, mov2, jmp1;
31959 + unsigned char stcclc, jmp2;
31960 + unsigned long addr1, addr2;
31961 +
31962 + err = get_user(mov1, (unsigned short __user *)regs->ip);
31963 + err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
31964 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
31965 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
31966 + err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
31967 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
31968 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
31969 +
31970 + if (err)
31971 + break;
31972 +
31973 + if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
31974 + regs->r11 = addr1;
31975 + regs->r10 = addr2;
31976 + if (stcclc == 0xF8)
31977 + regs->flags &= ~X86_EFLAGS_CF;
31978 + else
31979 + regs->flags |= X86_EFLAGS_CF;
31980 + regs->ip = addr1;
31981 + return 2;
31982 + }
31983 + } while (0);
31984 +
31985 + do { /* PaX: gcc trampoline emulation #1 */
31986 + unsigned short mov1, mov2, jmp1;
31987 + unsigned char jmp2;
31988 + unsigned int addr1;
31989 + unsigned long addr2;
31990 +
31991 + err = get_user(mov1, (unsigned short __user *)regs->ip);
31992 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
31993 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
31994 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
31995 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
31996 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
31997 +
31998 + if (err)
31999 + break;
32000 +
32001 + if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32002 + regs->r11 = addr1;
32003 + regs->r10 = addr2;
32004 + regs->ip = addr1;
32005 + return 2;
32006 + }
32007 + } while (0);
32008 +
32009 + do { /* PaX: gcc trampoline emulation #2 */
32010 + unsigned short mov1, mov2, jmp1;
32011 + unsigned char jmp2;
32012 + unsigned long addr1, addr2;
32013 +
32014 + err = get_user(mov1, (unsigned short __user *)regs->ip);
32015 + err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
32016 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
32017 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
32018 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
32019 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
32020 +
32021 + if (err)
32022 + break;
32023 +
32024 + if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32025 + regs->r11 = addr1;
32026 + regs->r10 = addr2;
32027 + regs->ip = addr1;
32028 + return 2;
32029 + }
32030 + } while (0);
32031 +
32032 + return 1; /* PaX in action */
32033 +}
32034 +#endif
32035 +
32036 +/*
32037 + * PaX: decide what to do with offenders (regs->ip = fault address)
32038 + *
32039 + * returns 1 when task should be killed
32040 + * 2 when gcc trampoline was detected
32041 + */
32042 +static int pax_handle_fetch_fault(struct pt_regs *regs)
32043 +{
32044 + if (v8086_mode(regs))
32045 + return 1;
32046 +
32047 + if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
32048 + return 1;
32049 +
32050 +#ifdef CONFIG_X86_32
32051 + return pax_handle_fetch_fault_32(regs);
32052 +#else
32053 + if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
32054 + return pax_handle_fetch_fault_32(regs);
32055 + else
32056 + return pax_handle_fetch_fault_64(regs);
32057 +#endif
32058 +}
32059 +#endif
32060 +
32061 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32062 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
32063 +{
32064 + long i;
32065 +
32066 + printk(KERN_ERR "PAX: bytes at PC: ");
32067 + for (i = 0; i < 20; i++) {
32068 + unsigned char c;
32069 + if (get_user(c, (unsigned char __force_user *)pc+i))
32070 + printk(KERN_CONT "?? ");
32071 + else
32072 + printk(KERN_CONT "%02x ", c);
32073 + }
32074 + printk("\n");
32075 +
32076 + printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
32077 + for (i = -1; i < 80 / (long)sizeof(long); i++) {
32078 + unsigned long c;
32079 + if (get_user(c, (unsigned long __force_user *)sp+i)) {
32080 +#ifdef CONFIG_X86_32
32081 + printk(KERN_CONT "???????? ");
32082 +#else
32083 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
32084 + printk(KERN_CONT "???????? ???????? ");
32085 + else
32086 + printk(KERN_CONT "???????????????? ");
32087 +#endif
32088 + } else {
32089 +#ifdef CONFIG_X86_64
32090 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
32091 + printk(KERN_CONT "%08x ", (unsigned int)c);
32092 + printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
32093 + } else
32094 +#endif
32095 + printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
32096 + }
32097 + }
32098 + printk("\n");
32099 +}
32100 +#endif
32101 +
32102 +/**
32103 + * probe_kernel_write(): safely attempt to write to a location
32104 + * @dst: address to write to
32105 + * @src: pointer to the data that shall be written
32106 + * @size: size of the data chunk
32107 + *
32108 + * Safely write to address @dst from the buffer at @src. If a kernel fault
32109 + * happens, handle that and return -EFAULT.
32110 + */
32111 +long notrace probe_kernel_write(void *dst, const void *src, size_t size)
32112 +{
32113 + long ret;
32114 + mm_segment_t old_fs = get_fs();
32115 +
32116 + set_fs(KERNEL_DS);
32117 + pagefault_disable();
32118 + pax_open_kernel();
32119 + ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
32120 + pax_close_kernel();
32121 + pagefault_enable();
32122 + set_fs(old_fs);
32123 +
32124 + return ret ? -EFAULT : 0;
32125 +}
32126 diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
32127 index 207d9aef..69030980 100644
32128 --- a/arch/x86/mm/gup.c
32129 +++ b/arch/x86/mm/gup.c
32130 @@ -268,7 +268,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
32131 addr = start;
32132 len = (unsigned long) nr_pages << PAGE_SHIFT;
32133 end = start + len;
32134 - if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
32135 + if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32136 (void __user *)start, len)))
32137 return 0;
32138
32139 @@ -344,6 +344,10 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
32140 goto slow_irqon;
32141 #endif
32142
32143 + if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32144 + (void __user *)start, len)))
32145 + return 0;
32146 +
32147 /*
32148 * XXX: batch / limit 'nr', to avoid large irq off latency
32149 * needs some instrumenting to determine the common sizes used by
32150 diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
32151 index 4500142..53a363c 100644
32152 --- a/arch/x86/mm/highmem_32.c
32153 +++ b/arch/x86/mm/highmem_32.c
32154 @@ -45,7 +45,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
32155 idx = type + KM_TYPE_NR*smp_processor_id();
32156 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
32157 BUG_ON(!pte_none(*(kmap_pte-idx)));
32158 +
32159 + pax_open_kernel();
32160 set_pte(kmap_pte-idx, mk_pte(page, prot));
32161 + pax_close_kernel();
32162 +
32163 arch_flush_lazy_mmu_mode();
32164
32165 return (void *)vaddr;
32166 diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
32167 index 8b977eb..4732c33 100644
32168 --- a/arch/x86/mm/hugetlbpage.c
32169 +++ b/arch/x86/mm/hugetlbpage.c
32170 @@ -80,23 +80,24 @@ int pud_huge(pud_t pud)
32171 #ifdef CONFIG_HUGETLB_PAGE
32172 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
32173 unsigned long addr, unsigned long len,
32174 - unsigned long pgoff, unsigned long flags)
32175 + unsigned long pgoff, unsigned long flags, unsigned long offset)
32176 {
32177 struct hstate *h = hstate_file(file);
32178 struct vm_unmapped_area_info info;
32179 -
32180 +
32181 info.flags = 0;
32182 info.length = len;
32183 info.low_limit = current->mm->mmap_legacy_base;
32184 info.high_limit = TASK_SIZE;
32185 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32186 info.align_offset = 0;
32187 + info.threadstack_offset = offset;
32188 return vm_unmapped_area(&info);
32189 }
32190
32191 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32192 unsigned long addr0, unsigned long len,
32193 - unsigned long pgoff, unsigned long flags)
32194 + unsigned long pgoff, unsigned long flags, unsigned long offset)
32195 {
32196 struct hstate *h = hstate_file(file);
32197 struct vm_unmapped_area_info info;
32198 @@ -108,6 +109,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32199 info.high_limit = current->mm->mmap_base;
32200 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32201 info.align_offset = 0;
32202 + info.threadstack_offset = offset;
32203 addr = vm_unmapped_area(&info);
32204
32205 /*
32206 @@ -120,6 +122,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32207 VM_BUG_ON(addr != -ENOMEM);
32208 info.flags = 0;
32209 info.low_limit = TASK_UNMAPPED_BASE;
32210 +
32211 +#ifdef CONFIG_PAX_RANDMMAP
32212 + if (current->mm->pax_flags & MF_PAX_RANDMMAP)
32213 + info.low_limit += current->mm->delta_mmap;
32214 +#endif
32215 +
32216 info.high_limit = TASK_SIZE;
32217 addr = vm_unmapped_area(&info);
32218 }
32219 @@ -134,10 +142,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32220 struct hstate *h = hstate_file(file);
32221 struct mm_struct *mm = current->mm;
32222 struct vm_area_struct *vma;
32223 + unsigned long pax_task_size = TASK_SIZE;
32224 + unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
32225
32226 if (len & ~huge_page_mask(h))
32227 return -EINVAL;
32228 - if (len > TASK_SIZE)
32229 +
32230 +#ifdef CONFIG_PAX_SEGMEXEC
32231 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
32232 + pax_task_size = SEGMEXEC_TASK_SIZE;
32233 +#endif
32234 +
32235 + pax_task_size -= PAGE_SIZE;
32236 +
32237 + if (len > pax_task_size)
32238 return -ENOMEM;
32239
32240 if (flags & MAP_FIXED) {
32241 @@ -146,19 +164,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32242 return addr;
32243 }
32244
32245 +#ifdef CONFIG_PAX_RANDMMAP
32246 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
32247 +#endif
32248 +
32249 if (addr) {
32250 addr = ALIGN(addr, huge_page_size(h));
32251 vma = find_vma(mm, addr);
32252 - if (TASK_SIZE - len >= addr &&
32253 - (!vma || addr + len <= vma->vm_start))
32254 + if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
32255 return addr;
32256 }
32257 if (mm->get_unmapped_area == arch_get_unmapped_area)
32258 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
32259 - pgoff, flags);
32260 + pgoff, flags, offset);
32261 else
32262 return hugetlb_get_unmapped_area_topdown(file, addr, len,
32263 - pgoff, flags);
32264 + pgoff, flags, offset);
32265 }
32266 #endif /* CONFIG_HUGETLB_PAGE */
32267
32268 diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
32269 index f971306..e83e0f6 100644
32270 --- a/arch/x86/mm/init.c
32271 +++ b/arch/x86/mm/init.c
32272 @@ -4,6 +4,7 @@
32273 #include <linux/swap.h>
32274 #include <linux/memblock.h>
32275 #include <linux/bootmem.h> /* for max_low_pfn */
32276 +#include <linux/tboot.h>
32277
32278 #include <asm/cacheflush.h>
32279 #include <asm/e820.h>
32280 @@ -17,6 +18,8 @@
32281 #include <asm/proto.h>
32282 #include <asm/dma.h> /* for MAX_DMA_PFN */
32283 #include <asm/microcode.h>
32284 +#include <asm/desc.h>
32285 +#include <asm/bios_ebda.h>
32286
32287 #include "mm_internal.h"
32288
32289 @@ -563,7 +566,18 @@ void __init init_mem_mapping(void)
32290 early_ioremap_page_table_range_init();
32291 #endif
32292
32293 +#ifdef CONFIG_PAX_PER_CPU_PGD
32294 + clone_pgd_range(get_cpu_pgd(0, kernel) + KERNEL_PGD_BOUNDARY,
32295 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32296 + KERNEL_PGD_PTRS);
32297 + clone_pgd_range(get_cpu_pgd(0, user) + KERNEL_PGD_BOUNDARY,
32298 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32299 + KERNEL_PGD_PTRS);
32300 + load_cr3(get_cpu_pgd(0, kernel));
32301 +#else
32302 load_cr3(swapper_pg_dir);
32303 +#endif
32304 +
32305 __flush_tlb_all();
32306
32307 early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
32308 @@ -579,10 +593,40 @@ void __init init_mem_mapping(void)
32309 * Access has to be given to non-kernel-ram areas as well, these contain the PCI
32310 * mmio resources as well as potential bios/acpi data regions.
32311 */
32312 +
32313 +#ifdef CONFIG_GRKERNSEC_KMEM
32314 +static unsigned int ebda_start __read_only;
32315 +static unsigned int ebda_end __read_only;
32316 +#endif
32317 +
32318 int devmem_is_allowed(unsigned long pagenr)
32319 {
32320 - if (pagenr < 256)
32321 +#ifdef CONFIG_GRKERNSEC_KMEM
32322 + /* allow BDA */
32323 + if (!pagenr)
32324 return 1;
32325 + /* allow EBDA */
32326 + if (pagenr >= ebda_start && pagenr < ebda_end)
32327 + return 1;
32328 + /* if tboot is in use, allow access to its hardcoded serial log range */
32329 + if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
32330 + return 1;
32331 +#else
32332 + if (!pagenr)
32333 + return 1;
32334 +#ifdef CONFIG_VM86
32335 + if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
32336 + return 1;
32337 +#endif
32338 +#endif
32339 +
32340 + if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
32341 + return 1;
32342 +#ifdef CONFIG_GRKERNSEC_KMEM
32343 + /* throw out everything else below 1MB */
32344 + if (pagenr <= 256)
32345 + return 0;
32346 +#endif
32347 if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
32348 return 0;
32349 if (!page_is_ram(pagenr))
32350 @@ -628,8 +672,117 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
32351 #endif
32352 }
32353
32354 +#ifdef CONFIG_GRKERNSEC_KMEM
32355 +static inline void gr_init_ebda(void)
32356 +{
32357 + unsigned int ebda_addr;
32358 + unsigned int ebda_size = 0;
32359 +
32360 + ebda_addr = get_bios_ebda();
32361 + if (ebda_addr) {
32362 + ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
32363 + ebda_size <<= 10;
32364 + }
32365 + if (ebda_addr && ebda_size) {
32366 + ebda_start = ebda_addr >> PAGE_SHIFT;
32367 + ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
32368 + } else {
32369 + ebda_start = 0x9f000 >> PAGE_SHIFT;
32370 + ebda_end = 0xa0000 >> PAGE_SHIFT;
32371 + }
32372 +}
32373 +#else
32374 +static inline void gr_init_ebda(void) { }
32375 +#endif
32376 +
32377 void free_initmem(void)
32378 {
32379 +#ifdef CONFIG_PAX_KERNEXEC
32380 +#ifdef CONFIG_X86_32
32381 + /* PaX: limit KERNEL_CS to actual size */
32382 + unsigned long addr, limit;
32383 + struct desc_struct d;
32384 + int cpu;
32385 +#else
32386 + pgd_t *pgd;
32387 + pud_t *pud;
32388 + pmd_t *pmd;
32389 + unsigned long addr, end;
32390 +#endif
32391 +#endif
32392 +
32393 + gr_init_ebda();
32394 +
32395 +#ifdef CONFIG_PAX_KERNEXEC
32396 +#ifdef CONFIG_X86_32
32397 + limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
32398 + limit = (limit - 1UL) >> PAGE_SHIFT;
32399 +
32400 + memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
32401 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
32402 + pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
32403 + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
32404 + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
32405 + }
32406 +
32407 + /* PaX: make KERNEL_CS read-only */
32408 + addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
32409 + if (!paravirt_enabled())
32410 + set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
32411 +/*
32412 + for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
32413 + pgd = pgd_offset_k(addr);
32414 + pud = pud_offset(pgd, addr);
32415 + pmd = pmd_offset(pud, addr);
32416 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32417 + }
32418 +*/
32419 +#ifdef CONFIG_X86_PAE
32420 + set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
32421 +/*
32422 + for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
32423 + pgd = pgd_offset_k(addr);
32424 + pud = pud_offset(pgd, addr);
32425 + pmd = pmd_offset(pud, addr);
32426 + set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32427 + }
32428 +*/
32429 +#endif
32430 +
32431 +#ifdef CONFIG_MODULES
32432 + set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
32433 +#endif
32434 +
32435 +#else
32436 + /* PaX: make kernel code/rodata read-only, rest non-executable */
32437 + for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
32438 + pgd = pgd_offset_k(addr);
32439 + pud = pud_offset(pgd, addr);
32440 + pmd = pmd_offset(pud, addr);
32441 + if (!pmd_present(*pmd))
32442 + continue;
32443 + if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
32444 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32445 + else
32446 + set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32447 + }
32448 +
32449 + addr = (unsigned long)__va(__pa(__START_KERNEL_map));
32450 + end = addr + KERNEL_IMAGE_SIZE;
32451 + for (; addr < end; addr += PMD_SIZE) {
32452 + pgd = pgd_offset_k(addr);
32453 + pud = pud_offset(pgd, addr);
32454 + pmd = pmd_offset(pud, addr);
32455 + if (!pmd_present(*pmd))
32456 + continue;
32457 + if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
32458 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32459 + }
32460 +#endif
32461 +
32462 + flush_tlb_all();
32463 +#endif
32464 +
32465 free_init_pages("unused kernel",
32466 (unsigned long)(&__init_begin),
32467 (unsigned long)(&__init_end));
32468 diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
32469 index e395048..cd38278 100644
32470 --- a/arch/x86/mm/init_32.c
32471 +++ b/arch/x86/mm/init_32.c
32472 @@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
32473 bool __read_mostly __vmalloc_start_set = false;
32474
32475 /*
32476 - * Creates a middle page table and puts a pointer to it in the
32477 - * given global directory entry. This only returns the gd entry
32478 - * in non-PAE compilation mode, since the middle layer is folded.
32479 - */
32480 -static pmd_t * __init one_md_table_init(pgd_t *pgd)
32481 -{
32482 - pud_t *pud;
32483 - pmd_t *pmd_table;
32484 -
32485 -#ifdef CONFIG_X86_PAE
32486 - if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
32487 - pmd_table = (pmd_t *)alloc_low_page();
32488 - paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
32489 - set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
32490 - pud = pud_offset(pgd, 0);
32491 - BUG_ON(pmd_table != pmd_offset(pud, 0));
32492 -
32493 - return pmd_table;
32494 - }
32495 -#endif
32496 - pud = pud_offset(pgd, 0);
32497 - pmd_table = pmd_offset(pud, 0);
32498 -
32499 - return pmd_table;
32500 -}
32501 -
32502 -/*
32503 * Create a page table and place a pointer to it in a middle page
32504 * directory entry:
32505 */
32506 @@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
32507 pte_t *page_table = (pte_t *)alloc_low_page();
32508
32509 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
32510 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32511 + set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
32512 +#else
32513 set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
32514 +#endif
32515 BUG_ON(page_table != pte_offset_kernel(pmd, 0));
32516 }
32517
32518 return pte_offset_kernel(pmd, 0);
32519 }
32520
32521 +static pmd_t * __init one_md_table_init(pgd_t *pgd)
32522 +{
32523 + pud_t *pud;
32524 + pmd_t *pmd_table;
32525 +
32526 + pud = pud_offset(pgd, 0);
32527 + pmd_table = pmd_offset(pud, 0);
32528 +
32529 + return pmd_table;
32530 +}
32531 +
32532 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
32533 {
32534 int pgd_idx = pgd_index(vaddr);
32535 @@ -208,6 +196,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32536 int pgd_idx, pmd_idx;
32537 unsigned long vaddr;
32538 pgd_t *pgd;
32539 + pud_t *pud;
32540 pmd_t *pmd;
32541 pte_t *pte = NULL;
32542 unsigned long count = page_table_range_init_count(start, end);
32543 @@ -222,8 +211,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32544 pgd = pgd_base + pgd_idx;
32545
32546 for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
32547 - pmd = one_md_table_init(pgd);
32548 - pmd = pmd + pmd_index(vaddr);
32549 + pud = pud_offset(pgd, vaddr);
32550 + pmd = pmd_offset(pud, vaddr);
32551 +
32552 +#ifdef CONFIG_X86_PAE
32553 + paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
32554 +#endif
32555 +
32556 for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
32557 pmd++, pmd_idx++) {
32558 pte = page_table_kmap_check(one_page_table_init(pmd),
32559 @@ -235,11 +229,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
32560 }
32561 }
32562
32563 -static inline int is_kernel_text(unsigned long addr)
32564 +static inline int is_kernel_text(unsigned long start, unsigned long end)
32565 {
32566 - if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
32567 - return 1;
32568 - return 0;
32569 + if ((start >= ktla_ktva((unsigned long)_etext) ||
32570 + end <= ktla_ktva((unsigned long)_stext)) &&
32571 + (start >= ktla_ktva((unsigned long)_einittext) ||
32572 + end <= ktla_ktva((unsigned long)_sinittext)) &&
32573 +
32574 +#ifdef CONFIG_ACPI_SLEEP
32575 + (start >= (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
32576 +#endif
32577 +
32578 + (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
32579 + return 0;
32580 + return 1;
32581 }
32582
32583 /*
32584 @@ -256,9 +259,10 @@ kernel_physical_mapping_init(unsigned long start,
32585 unsigned long last_map_addr = end;
32586 unsigned long start_pfn, end_pfn;
32587 pgd_t *pgd_base = swapper_pg_dir;
32588 - int pgd_idx, pmd_idx, pte_ofs;
32589 + unsigned int pgd_idx, pmd_idx, pte_ofs;
32590 unsigned long pfn;
32591 pgd_t *pgd;
32592 + pud_t *pud;
32593 pmd_t *pmd;
32594 pte_t *pte;
32595 unsigned pages_2m, pages_4k;
32596 @@ -291,8 +295,13 @@ repeat:
32597 pfn = start_pfn;
32598 pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
32599 pgd = pgd_base + pgd_idx;
32600 - for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
32601 - pmd = one_md_table_init(pgd);
32602 + for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
32603 + pud = pud_offset(pgd, 0);
32604 + pmd = pmd_offset(pud, 0);
32605 +
32606 +#ifdef CONFIG_X86_PAE
32607 + paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
32608 +#endif
32609
32610 if (pfn >= end_pfn)
32611 continue;
32612 @@ -304,14 +313,13 @@ repeat:
32613 #endif
32614 for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
32615 pmd++, pmd_idx++) {
32616 - unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
32617 + unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
32618
32619 /*
32620 * Map with big pages if possible, otherwise
32621 * create normal page tables:
32622 */
32623 if (use_pse) {
32624 - unsigned int addr2;
32625 pgprot_t prot = PAGE_KERNEL_LARGE;
32626 /*
32627 * first pass will use the same initial
32628 @@ -322,11 +330,7 @@ repeat:
32629 _PAGE_PSE);
32630
32631 pfn &= PMD_MASK >> PAGE_SHIFT;
32632 - addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
32633 - PAGE_OFFSET + PAGE_SIZE-1;
32634 -
32635 - if (is_kernel_text(addr) ||
32636 - is_kernel_text(addr2))
32637 + if (is_kernel_text(address, address + PMD_SIZE))
32638 prot = PAGE_KERNEL_LARGE_EXEC;
32639
32640 pages_2m++;
32641 @@ -343,7 +347,7 @@ repeat:
32642 pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
32643 pte += pte_ofs;
32644 for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
32645 - pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
32646 + pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
32647 pgprot_t prot = PAGE_KERNEL;
32648 /*
32649 * first pass will use the same initial
32650 @@ -351,7 +355,7 @@ repeat:
32651 */
32652 pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
32653
32654 - if (is_kernel_text(addr))
32655 + if (is_kernel_text(address, address + PAGE_SIZE))
32656 prot = PAGE_KERNEL_EXEC;
32657
32658 pages_4k++;
32659 @@ -474,7 +478,7 @@ void __init native_pagetable_init(void)
32660
32661 pud = pud_offset(pgd, va);
32662 pmd = pmd_offset(pud, va);
32663 - if (!pmd_present(*pmd))
32664 + if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
32665 break;
32666
32667 /* should not be large page here */
32668 @@ -532,12 +536,10 @@ void __init early_ioremap_page_table_range_init(void)
32669
32670 static void __init pagetable_init(void)
32671 {
32672 - pgd_t *pgd_base = swapper_pg_dir;
32673 -
32674 - permanent_kmaps_init(pgd_base);
32675 + permanent_kmaps_init(swapper_pg_dir);
32676 }
32677
32678 -pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
32679 +pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
32680 EXPORT_SYMBOL_GPL(__supported_pte_mask);
32681
32682 /* user-defined highmem size */
32683 @@ -787,10 +789,10 @@ void __init mem_init(void)
32684 ((unsigned long)&__init_end -
32685 (unsigned long)&__init_begin) >> 10,
32686
32687 - (unsigned long)&_etext, (unsigned long)&_edata,
32688 - ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
32689 + (unsigned long)&_sdata, (unsigned long)&_edata,
32690 + ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
32691
32692 - (unsigned long)&_text, (unsigned long)&_etext,
32693 + ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
32694 ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
32695
32696 /*
32697 @@ -883,6 +885,7 @@ void set_kernel_text_rw(void)
32698 if (!kernel_set_to_readonly)
32699 return;
32700
32701 + start = ktla_ktva(start);
32702 pr_debug("Set kernel text: %lx - %lx for read write\n",
32703 start, start+size);
32704
32705 @@ -897,6 +900,7 @@ void set_kernel_text_ro(void)
32706 if (!kernel_set_to_readonly)
32707 return;
32708
32709 + start = ktla_ktva(start);
32710 pr_debug("Set kernel text: %lx - %lx for read only\n",
32711 start, start+size);
32712
32713 @@ -925,6 +929,7 @@ void mark_rodata_ro(void)
32714 unsigned long start = PFN_ALIGN(_text);
32715 unsigned long size = PFN_ALIGN(_etext) - start;
32716
32717 + start = ktla_ktva(start);
32718 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
32719 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
32720 size >> 10);
32721 diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
32722 index f35c66c..84b95ef 100644
32723 --- a/arch/x86/mm/init_64.c
32724 +++ b/arch/x86/mm/init_64.c
32725 @@ -151,7 +151,7 @@ early_param("gbpages", parse_direct_gbpages_on);
32726 * around without checking the pgd every time.
32727 */
32728
32729 -pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP;
32730 +pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP);
32731 EXPORT_SYMBOL_GPL(__supported_pte_mask);
32732
32733 int force_personality32;
32734 @@ -184,12 +184,29 @@ void sync_global_pgds(unsigned long start, unsigned long end)
32735
32736 for (address = start; address <= end; address += PGDIR_SIZE) {
32737 const pgd_t *pgd_ref = pgd_offset_k(address);
32738 +
32739 +#ifdef CONFIG_PAX_PER_CPU_PGD
32740 + unsigned long cpu;
32741 +#else
32742 struct page *page;
32743 +#endif
32744
32745 if (pgd_none(*pgd_ref))
32746 continue;
32747
32748 spin_lock(&pgd_lock);
32749 +
32750 +#ifdef CONFIG_PAX_PER_CPU_PGD
32751 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
32752 + pgd_t *pgd = pgd_offset_cpu(cpu, user, address);
32753 +
32754 + if (pgd_none(*pgd))
32755 + set_pgd(pgd, *pgd_ref);
32756 + else
32757 + BUG_ON(pgd_page_vaddr(*pgd)
32758 + != pgd_page_vaddr(*pgd_ref));
32759 + pgd = pgd_offset_cpu(cpu, kernel, address);
32760 +#else
32761 list_for_each_entry(page, &pgd_list, lru) {
32762 pgd_t *pgd;
32763 spinlock_t *pgt_lock;
32764 @@ -198,6 +215,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
32765 /* the pgt_lock only for Xen */
32766 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
32767 spin_lock(pgt_lock);
32768 +#endif
32769
32770 if (pgd_none(*pgd))
32771 set_pgd(pgd, *pgd_ref);
32772 @@ -205,7 +223,10 @@ void sync_global_pgds(unsigned long start, unsigned long end)
32773 BUG_ON(pgd_page_vaddr(*pgd)
32774 != pgd_page_vaddr(*pgd_ref));
32775
32776 +#ifndef CONFIG_PAX_PER_CPU_PGD
32777 spin_unlock(pgt_lock);
32778 +#endif
32779 +
32780 }
32781 spin_unlock(&pgd_lock);
32782 }
32783 @@ -238,7 +259,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
32784 {
32785 if (pgd_none(*pgd)) {
32786 pud_t *pud = (pud_t *)spp_getpage();
32787 - pgd_populate(&init_mm, pgd, pud);
32788 + pgd_populate_kernel(&init_mm, pgd, pud);
32789 if (pud != pud_offset(pgd, 0))
32790 printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
32791 pud, pud_offset(pgd, 0));
32792 @@ -250,7 +271,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
32793 {
32794 if (pud_none(*pud)) {
32795 pmd_t *pmd = (pmd_t *) spp_getpage();
32796 - pud_populate(&init_mm, pud, pmd);
32797 + pud_populate_kernel(&init_mm, pud, pmd);
32798 if (pmd != pmd_offset(pud, 0))
32799 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
32800 pmd, pmd_offset(pud, 0));
32801 @@ -279,7 +300,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
32802 pmd = fill_pmd(pud, vaddr);
32803 pte = fill_pte(pmd, vaddr);
32804
32805 + pax_open_kernel();
32806 set_pte(pte, new_pte);
32807 + pax_close_kernel();
32808
32809 /*
32810 * It's enough to flush this one mapping.
32811 @@ -338,14 +361,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
32812 pgd = pgd_offset_k((unsigned long)__va(phys));
32813 if (pgd_none(*pgd)) {
32814 pud = (pud_t *) spp_getpage();
32815 - set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
32816 - _PAGE_USER));
32817 + set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
32818 }
32819 pud = pud_offset(pgd, (unsigned long)__va(phys));
32820 if (pud_none(*pud)) {
32821 pmd = (pmd_t *) spp_getpage();
32822 - set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
32823 - _PAGE_USER));
32824 + set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
32825 }
32826 pmd = pmd_offset(pud, phys);
32827 BUG_ON(!pmd_none(*pmd));
32828 @@ -586,7 +607,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
32829 prot);
32830
32831 spin_lock(&init_mm.page_table_lock);
32832 - pud_populate(&init_mm, pud, pmd);
32833 + pud_populate_kernel(&init_mm, pud, pmd);
32834 spin_unlock(&init_mm.page_table_lock);
32835 }
32836 __flush_tlb_all();
32837 @@ -627,7 +648,7 @@ kernel_physical_mapping_init(unsigned long start,
32838 page_size_mask);
32839
32840 spin_lock(&init_mm.page_table_lock);
32841 - pgd_populate(&init_mm, pgd, pud);
32842 + pgd_populate_kernel(&init_mm, pgd, pud);
32843 spin_unlock(&init_mm.page_table_lock);
32844 pgd_changed = true;
32845 }
32846 @@ -1188,8 +1209,8 @@ int kern_addr_valid(unsigned long addr)
32847 static struct vm_area_struct gate_vma = {
32848 .vm_start = VSYSCALL_START,
32849 .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE),
32850 - .vm_page_prot = PAGE_READONLY_EXEC,
32851 - .vm_flags = VM_READ | VM_EXEC
32852 + .vm_page_prot = PAGE_READONLY,
32853 + .vm_flags = VM_READ
32854 };
32855
32856 struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
32857 @@ -1223,7 +1244,7 @@ int in_gate_area_no_mm(unsigned long addr)
32858
32859 const char *arch_vma_name(struct vm_area_struct *vma)
32860 {
32861 - if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
32862 + if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
32863 return "[vdso]";
32864 if (vma == &gate_vma)
32865 return "[vsyscall]";
32866 diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
32867 index 7b179b4..6bd17777 100644
32868 --- a/arch/x86/mm/iomap_32.c
32869 +++ b/arch/x86/mm/iomap_32.c
32870 @@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
32871 type = kmap_atomic_idx_push();
32872 idx = type + KM_TYPE_NR * smp_processor_id();
32873 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
32874 +
32875 + pax_open_kernel();
32876 set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
32877 + pax_close_kernel();
32878 +
32879 arch_flush_lazy_mmu_mode();
32880
32881 return (void *)vaddr;
32882 diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
32883 index 597ac15..49841be 100644
32884 --- a/arch/x86/mm/ioremap.c
32885 +++ b/arch/x86/mm/ioremap.c
32886 @@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
32887 for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) {
32888 int is_ram = page_is_ram(pfn);
32889
32890 - if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn)))
32891 + if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn))))
32892 return NULL;
32893 WARN_ON_ONCE(is_ram);
32894 }
32895 @@ -256,7 +256,7 @@ EXPORT_SYMBOL(ioremap_prot);
32896 *
32897 * Caller must ensure there is only one unmapping for the same pointer.
32898 */
32899 -void iounmap(volatile void __iomem *addr)
32900 +void iounmap(const volatile void __iomem *addr)
32901 {
32902 struct vm_struct *p, *o;
32903
32904 @@ -310,6 +310,9 @@ void *xlate_dev_mem_ptr(unsigned long phys)
32905
32906 /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
32907 if (page_is_ram(start >> PAGE_SHIFT))
32908 +#ifdef CONFIG_HIGHMEM
32909 + if ((start >> PAGE_SHIFT) < max_low_pfn)
32910 +#endif
32911 return __va(phys);
32912
32913 addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
32914 @@ -322,13 +325,16 @@ void *xlate_dev_mem_ptr(unsigned long phys)
32915 void unxlate_dev_mem_ptr(unsigned long phys, void *addr)
32916 {
32917 if (page_is_ram(phys >> PAGE_SHIFT))
32918 +#ifdef CONFIG_HIGHMEM
32919 + if ((phys >> PAGE_SHIFT) < max_low_pfn)
32920 +#endif
32921 return;
32922
32923 iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
32924 return;
32925 }
32926
32927 -static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
32928 +static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
32929
32930 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
32931 {
32932 @@ -358,8 +364,7 @@ void __init early_ioremap_init(void)
32933 early_ioremap_setup();
32934
32935 pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
32936 - memset(bm_pte, 0, sizeof(bm_pte));
32937 - pmd_populate_kernel(&init_mm, pmd, bm_pte);
32938 + pmd_populate_user(&init_mm, pmd, bm_pte);
32939
32940 /*
32941 * The boot-ioremap range spans multiple pmds, for which
32942 diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
32943 index dd89a13..d77bdcc 100644
32944 --- a/arch/x86/mm/kmemcheck/kmemcheck.c
32945 +++ b/arch/x86/mm/kmemcheck/kmemcheck.c
32946 @@ -628,9 +628,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
32947 * memory (e.g. tracked pages)? For now, we need this to avoid
32948 * invoking kmemcheck for PnP BIOS calls.
32949 */
32950 - if (regs->flags & X86_VM_MASK)
32951 + if (v8086_mode(regs))
32952 return false;
32953 - if (regs->cs != __KERNEL_CS)
32954 + if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
32955 return false;
32956
32957 pte = kmemcheck_pte_lookup(address);
32958 diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
32959 index 25e7e13..1964579 100644
32960 --- a/arch/x86/mm/mmap.c
32961 +++ b/arch/x86/mm/mmap.c
32962 @@ -52,7 +52,7 @@ static unsigned int stack_maxrandom_size(void)
32963 * Leave an at least ~128 MB hole with possible stack randomization.
32964 */
32965 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
32966 -#define MAX_GAP (TASK_SIZE/6*5)
32967 +#define MAX_GAP (pax_task_size/6*5)
32968
32969 static int mmap_is_legacy(void)
32970 {
32971 @@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
32972 return rnd << PAGE_SHIFT;
32973 }
32974
32975 -static unsigned long mmap_base(void)
32976 +static unsigned long mmap_base(struct mm_struct *mm)
32977 {
32978 unsigned long gap = rlimit(RLIMIT_STACK);
32979 + unsigned long pax_task_size = TASK_SIZE;
32980 +
32981 +#ifdef CONFIG_PAX_SEGMEXEC
32982 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
32983 + pax_task_size = SEGMEXEC_TASK_SIZE;
32984 +#endif
32985
32986 if (gap < MIN_GAP)
32987 gap = MIN_GAP;
32988 else if (gap > MAX_GAP)
32989 gap = MAX_GAP;
32990
32991 - return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
32992 + return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
32993 }
32994
32995 /*
32996 * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
32997 * does, but not when emulating X86_32
32998 */
32999 -static unsigned long mmap_legacy_base(void)
33000 +static unsigned long mmap_legacy_base(struct mm_struct *mm)
33001 {
33002 - if (mmap_is_ia32())
33003 + if (mmap_is_ia32()) {
33004 +
33005 +#ifdef CONFIG_PAX_SEGMEXEC
33006 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
33007 + return SEGMEXEC_TASK_UNMAPPED_BASE;
33008 + else
33009 +#endif
33010 +
33011 return TASK_UNMAPPED_BASE;
33012 - else
33013 + } else
33014 return TASK_UNMAPPED_BASE + mmap_rnd();
33015 }
33016
33017 @@ -112,8 +125,15 @@ static unsigned long mmap_legacy_base(void)
33018 */
33019 void arch_pick_mmap_layout(struct mm_struct *mm)
33020 {
33021 - mm->mmap_legacy_base = mmap_legacy_base();
33022 - mm->mmap_base = mmap_base();
33023 + mm->mmap_legacy_base = mmap_legacy_base(mm);
33024 + mm->mmap_base = mmap_base(mm);
33025 +
33026 +#ifdef CONFIG_PAX_RANDMMAP
33027 + if (mm->pax_flags & MF_PAX_RANDMMAP) {
33028 + mm->mmap_legacy_base += mm->delta_mmap;
33029 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
33030 + }
33031 +#endif
33032
33033 if (mmap_is_legacy()) {
33034 mm->mmap_base = mm->mmap_legacy_base;
33035 diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
33036 index 0057a7a..95c7edd 100644
33037 --- a/arch/x86/mm/mmio-mod.c
33038 +++ b/arch/x86/mm/mmio-mod.c
33039 @@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
33040 break;
33041 default:
33042 {
33043 - unsigned char *ip = (unsigned char *)instptr;
33044 + unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
33045 my_trace->opcode = MMIO_UNKNOWN_OP;
33046 my_trace->width = 0;
33047 my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
33048 @@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
33049 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33050 void __iomem *addr)
33051 {
33052 - static atomic_t next_id;
33053 + static atomic_unchecked_t next_id;
33054 struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
33055 /* These are page-unaligned. */
33056 struct mmiotrace_map map = {
33057 @@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33058 .private = trace
33059 },
33060 .phys = offset,
33061 - .id = atomic_inc_return(&next_id)
33062 + .id = atomic_inc_return_unchecked(&next_id)
33063 };
33064 map.map_id = trace->id;
33065
33066 @@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
33067 ioremap_trace_core(offset, size, addr);
33068 }
33069
33070 -static void iounmap_trace_core(volatile void __iomem *addr)
33071 +static void iounmap_trace_core(const volatile void __iomem *addr)
33072 {
33073 struct mmiotrace_map map = {
33074 .phys = 0,
33075 @@ -328,7 +328,7 @@ not_enabled:
33076 }
33077 }
33078
33079 -void mmiotrace_iounmap(volatile void __iomem *addr)
33080 +void mmiotrace_iounmap(const volatile void __iomem *addr)
33081 {
33082 might_sleep();
33083 if (is_enabled()) /* recheck and proper locking in *_core() */
33084 diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
33085 index 1d045f9..3a00249 100644
33086 --- a/arch/x86/mm/numa.c
33087 +++ b/arch/x86/mm/numa.c
33088 @@ -478,7 +478,7 @@ static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi)
33089 return true;
33090 }
33091
33092 -static int __init numa_register_memblks(struct numa_meminfo *mi)
33093 +static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
33094 {
33095 unsigned long uninitialized_var(pfn_align);
33096 int i, nid;
33097 diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
33098 index 461bc82..4e091a3 100644
33099 --- a/arch/x86/mm/pageattr-test.c
33100 +++ b/arch/x86/mm/pageattr-test.c
33101 @@ -35,7 +35,7 @@ enum {
33102
33103 static int pte_testbit(pte_t pte)
33104 {
33105 - return pte_flags(pte) & _PAGE_UNUSED1;
33106 + return pte_flags(pte) & _PAGE_CPA_TEST;
33107 }
33108
33109 struct split_state {
33110 diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
33111 index ae242a7..1c7998f 100644
33112 --- a/arch/x86/mm/pageattr.c
33113 +++ b/arch/x86/mm/pageattr.c
33114 @@ -262,7 +262,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33115 */
33116 #ifdef CONFIG_PCI_BIOS
33117 if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
33118 - pgprot_val(forbidden) |= _PAGE_NX;
33119 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33120 #endif
33121
33122 /*
33123 @@ -270,9 +270,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33124 * Does not cover __inittext since that is gone later on. On
33125 * 64bit we do not enforce !NX on the low mapping
33126 */
33127 - if (within(address, (unsigned long)_text, (unsigned long)_etext))
33128 - pgprot_val(forbidden) |= _PAGE_NX;
33129 + if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
33130 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33131
33132 +#ifdef CONFIG_DEBUG_RODATA
33133 /*
33134 * The .rodata section needs to be read-only. Using the pfn
33135 * catches all aliases.
33136 @@ -280,6 +281,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33137 if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
33138 __pa_symbol(__end_rodata) >> PAGE_SHIFT))
33139 pgprot_val(forbidden) |= _PAGE_RW;
33140 +#endif
33141
33142 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
33143 /*
33144 @@ -318,6 +320,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33145 }
33146 #endif
33147
33148 +#ifdef CONFIG_PAX_KERNEXEC
33149 + if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
33150 + pgprot_val(forbidden) |= _PAGE_RW;
33151 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33152 + }
33153 +#endif
33154 +
33155 prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
33156
33157 return prot;
33158 @@ -420,23 +429,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
33159 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
33160 {
33161 /* change init_mm */
33162 + pax_open_kernel();
33163 set_pte_atomic(kpte, pte);
33164 +
33165 #ifdef CONFIG_X86_32
33166 if (!SHARED_KERNEL_PMD) {
33167 +
33168 +#ifdef CONFIG_PAX_PER_CPU_PGD
33169 + unsigned long cpu;
33170 +#else
33171 struct page *page;
33172 +#endif
33173
33174 +#ifdef CONFIG_PAX_PER_CPU_PGD
33175 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
33176 + pgd_t *pgd = get_cpu_pgd(cpu, kernel);
33177 +#else
33178 list_for_each_entry(page, &pgd_list, lru) {
33179 - pgd_t *pgd;
33180 + pgd_t *pgd = (pgd_t *)page_address(page);
33181 +#endif
33182 +
33183 pud_t *pud;
33184 pmd_t *pmd;
33185
33186 - pgd = (pgd_t *)page_address(page) + pgd_index(address);
33187 + pgd += pgd_index(address);
33188 pud = pud_offset(pgd, address);
33189 pmd = pmd_offset(pud, address);
33190 set_pte_atomic((pte_t *)pmd, pte);
33191 }
33192 }
33193 #endif
33194 + pax_close_kernel();
33195 }
33196
33197 static int
33198 diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
33199 index 6574388..87e9bef 100644
33200 --- a/arch/x86/mm/pat.c
33201 +++ b/arch/x86/mm/pat.c
33202 @@ -376,7 +376,7 @@ int free_memtype(u64 start, u64 end)
33203
33204 if (!entry) {
33205 printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
33206 - current->comm, current->pid, start, end - 1);
33207 + current->comm, task_pid_nr(current), start, end - 1);
33208 return -EINVAL;
33209 }
33210
33211 @@ -506,8 +506,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
33212
33213 while (cursor < to) {
33214 if (!devmem_is_allowed(pfn)) {
33215 - printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
33216 - current->comm, from, to - 1);
33217 + printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
33218 + current->comm, from, to - 1, cursor);
33219 return 0;
33220 }
33221 cursor += PAGE_SIZE;
33222 @@ -577,7 +577,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
33223 if (ioremap_change_attr((unsigned long)__va(base), id_sz, flags) < 0) {
33224 printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
33225 "for [mem %#010Lx-%#010Lx]\n",
33226 - current->comm, current->pid,
33227 + current->comm, task_pid_nr(current),
33228 cattr_name(flags),
33229 base, (unsigned long long)(base + size-1));
33230 return -EINVAL;
33231 @@ -612,7 +612,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33232 flags = lookup_memtype(paddr);
33233 if (want_flags != flags) {
33234 printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
33235 - current->comm, current->pid,
33236 + current->comm, task_pid_nr(current),
33237 cattr_name(want_flags),
33238 (unsigned long long)paddr,
33239 (unsigned long long)(paddr + size - 1),
33240 @@ -634,7 +634,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33241 free_memtype(paddr, paddr + size);
33242 printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
33243 " for [mem %#010Lx-%#010Lx], got %s\n",
33244 - current->comm, current->pid,
33245 + current->comm, task_pid_nr(current),
33246 cattr_name(want_flags),
33247 (unsigned long long)paddr,
33248 (unsigned long long)(paddr + size - 1),
33249 diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
33250 index 415f6c4..d319983 100644
33251 --- a/arch/x86/mm/pat_rbtree.c
33252 +++ b/arch/x86/mm/pat_rbtree.c
33253 @@ -160,7 +160,7 @@ success:
33254
33255 failure:
33256 printk(KERN_INFO "%s:%d conflicting memory types "
33257 - "%Lx-%Lx %s<->%s\n", current->comm, current->pid, start,
33258 + "%Lx-%Lx %s<->%s\n", current->comm, task_pid_nr(current), start,
33259 end, cattr_name(found_type), cattr_name(match->type));
33260 return -EBUSY;
33261 }
33262 diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
33263 index 9f0614d..92ae64a 100644
33264 --- a/arch/x86/mm/pf_in.c
33265 +++ b/arch/x86/mm/pf_in.c
33266 @@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
33267 int i;
33268 enum reason_type rv = OTHERS;
33269
33270 - p = (unsigned char *)ins_addr;
33271 + p = (unsigned char *)ktla_ktva(ins_addr);
33272 p += skip_prefix(p, &prf);
33273 p += get_opcode(p, &opcode);
33274
33275 @@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
33276 struct prefix_bits prf;
33277 int i;
33278
33279 - p = (unsigned char *)ins_addr;
33280 + p = (unsigned char *)ktla_ktva(ins_addr);
33281 p += skip_prefix(p, &prf);
33282 p += get_opcode(p, &opcode);
33283
33284 @@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
33285 struct prefix_bits prf;
33286 int i;
33287
33288 - p = (unsigned char *)ins_addr;
33289 + p = (unsigned char *)ktla_ktva(ins_addr);
33290 p += skip_prefix(p, &prf);
33291 p += get_opcode(p, &opcode);
33292
33293 @@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
33294 struct prefix_bits prf;
33295 int i;
33296
33297 - p = (unsigned char *)ins_addr;
33298 + p = (unsigned char *)ktla_ktva(ins_addr);
33299 p += skip_prefix(p, &prf);
33300 p += get_opcode(p, &opcode);
33301 for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
33302 @@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
33303 struct prefix_bits prf;
33304 int i;
33305
33306 - p = (unsigned char *)ins_addr;
33307 + p = (unsigned char *)ktla_ktva(ins_addr);
33308 p += skip_prefix(p, &prf);
33309 p += get_opcode(p, &opcode);
33310 for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
33311 diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
33312 index c96314a..433b127 100644
33313 --- a/arch/x86/mm/pgtable.c
33314 +++ b/arch/x86/mm/pgtable.c
33315 @@ -97,10 +97,71 @@ static inline void pgd_list_del(pgd_t *pgd)
33316 list_del(&page->lru);
33317 }
33318
33319 -#define UNSHARED_PTRS_PER_PGD \
33320 - (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33321 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33322 +pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
33323
33324 +void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
33325 +{
33326 + unsigned int count = USER_PGD_PTRS;
33327
33328 + if (!pax_user_shadow_base)
33329 + return;
33330 +
33331 + while (count--)
33332 + *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
33333 +}
33334 +#endif
33335 +
33336 +#ifdef CONFIG_PAX_PER_CPU_PGD
33337 +void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
33338 +{
33339 + unsigned int count = USER_PGD_PTRS;
33340 +
33341 + while (count--) {
33342 + pgd_t pgd;
33343 +
33344 +#ifdef CONFIG_X86_64
33345 + pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
33346 +#else
33347 + pgd = *src++;
33348 +#endif
33349 +
33350 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33351 + pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
33352 +#endif
33353 +
33354 + *dst++ = pgd;
33355 + }
33356 +
33357 +}
33358 +#endif
33359 +
33360 +#ifdef CONFIG_X86_64
33361 +#define pxd_t pud_t
33362 +#define pyd_t pgd_t
33363 +#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn)
33364 +#define pgtable_pxd_page_ctor(page) true
33365 +#define pgtable_pxd_page_dtor(page)
33366 +#define pxd_free(mm, pud) pud_free((mm), (pud))
33367 +#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud))
33368 +#define pyd_offset(mm, address) pgd_offset((mm), (address))
33369 +#define PYD_SIZE PGDIR_SIZE
33370 +#else
33371 +#define pxd_t pmd_t
33372 +#define pyd_t pud_t
33373 +#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn)
33374 +#define pgtable_pxd_page_ctor(page) pgtable_pmd_page_ctor(page)
33375 +#define pgtable_pxd_page_dtor(page) pgtable_pmd_page_dtor(page)
33376 +#define pxd_free(mm, pud) pmd_free((mm), (pud))
33377 +#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud))
33378 +#define pyd_offset(mm, address) pud_offset((mm), (address))
33379 +#define PYD_SIZE PUD_SIZE
33380 +#endif
33381 +
33382 +#ifdef CONFIG_PAX_PER_CPU_PGD
33383 +static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
33384 +static inline void pgd_dtor(pgd_t *pgd) {}
33385 +#else
33386 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
33387 {
33388 BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
33389 @@ -141,6 +202,7 @@ static void pgd_dtor(pgd_t *pgd)
33390 pgd_list_del(pgd);
33391 spin_unlock(&pgd_lock);
33392 }
33393 +#endif
33394
33395 /*
33396 * List of all pgd's needed for non-PAE so it can invalidate entries
33397 @@ -153,7 +215,7 @@ static void pgd_dtor(pgd_t *pgd)
33398 * -- nyc
33399 */
33400
33401 -#ifdef CONFIG_X86_PAE
33402 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
33403 /*
33404 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
33405 * updating the top-level pagetable entries to guarantee the
33406 @@ -165,7 +227,7 @@ static void pgd_dtor(pgd_t *pgd)
33407 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
33408 * and initialize the kernel pmds here.
33409 */
33410 -#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD
33411 +#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33412
33413 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33414 {
33415 @@ -183,43 +245,45 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33416 */
33417 flush_tlb_mm(mm);
33418 }
33419 +#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
33420 +#define PREALLOCATED_PXDS USER_PGD_PTRS
33421 #else /* !CONFIG_X86_PAE */
33422
33423 /* No need to prepopulate any pagetable entries in non-PAE modes. */
33424 -#define PREALLOCATED_PMDS 0
33425 +#define PREALLOCATED_PXDS 0
33426
33427 #endif /* CONFIG_X86_PAE */
33428
33429 -static void free_pmds(pmd_t *pmds[])
33430 +static void free_pxds(pxd_t *pxds[])
33431 {
33432 int i;
33433
33434 - for(i = 0; i < PREALLOCATED_PMDS; i++)
33435 - if (pmds[i]) {
33436 - pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
33437 - free_page((unsigned long)pmds[i]);
33438 + for(i = 0; i < PREALLOCATED_PXDS; i++)
33439 + if (pxds[i]) {
33440 + pgtable_pxd_page_dtor(virt_to_page(pxds[i]));
33441 + free_page((unsigned long)pxds[i]);
33442 }
33443 }
33444
33445 -static int preallocate_pmds(pmd_t *pmds[])
33446 +static int preallocate_pxds(pxd_t *pxds[])
33447 {
33448 int i;
33449 bool failed = false;
33450
33451 - for(i = 0; i < PREALLOCATED_PMDS; i++) {
33452 - pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
33453 - if (!pmd)
33454 + for(i = 0; i < PREALLOCATED_PXDS; i++) {
33455 + pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
33456 + if (!pxd)
33457 failed = true;
33458 - if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
33459 - free_page((unsigned long)pmd);
33460 - pmd = NULL;
33461 + if (pxd && !pgtable_pxd_page_ctor(virt_to_page(pxd))) {
33462 + free_page((unsigned long)pxd);
33463 + pxd = NULL;
33464 failed = true;
33465 }
33466 - pmds[i] = pmd;
33467 + pxds[i] = pxd;
33468 }
33469
33470 if (failed) {
33471 - free_pmds(pmds);
33472 + free_pxds(pxds);
33473 return -ENOMEM;
33474 }
33475
33476 @@ -232,49 +296,52 @@ static int preallocate_pmds(pmd_t *pmds[])
33477 * preallocate which never got a corresponding vma will need to be
33478 * freed manually.
33479 */
33480 -static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
33481 +static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
33482 {
33483 int i;
33484
33485 - for(i = 0; i < PREALLOCATED_PMDS; i++) {
33486 + for(i = 0; i < PREALLOCATED_PXDS; i++) {
33487 pgd_t pgd = pgdp[i];
33488
33489 if (pgd_val(pgd) != 0) {
33490 - pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
33491 + pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
33492
33493 - pgdp[i] = native_make_pgd(0);
33494 + set_pgd(pgdp + i, native_make_pgd(0));
33495
33496 - paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
33497 - pmd_free(mm, pmd);
33498 + paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
33499 + pxd_free(mm, pxd);
33500 }
33501 }
33502 }
33503
33504 -static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
33505 +static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
33506 {
33507 - pud_t *pud;
33508 + pyd_t *pyd;
33509 int i;
33510
33511 - if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
33512 + if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
33513 return;
33514
33515 - pud = pud_offset(pgd, 0);
33516 -
33517 - for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
33518 - pmd_t *pmd = pmds[i];
33519 +#ifdef CONFIG_X86_64
33520 + pyd = pyd_offset(mm, 0L);
33521 +#else
33522 + pyd = pyd_offset(pgd, 0L);
33523 +#endif
33524
33525 + for (i = 0; i < PREALLOCATED_PXDS; i++, pyd++) {
33526 + pxd_t *pxd = pxds[i];
33527 if (i >= KERNEL_PGD_BOUNDARY)
33528 - memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
33529 - sizeof(pmd_t) * PTRS_PER_PMD);
33530 + memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
33531 + sizeof(pxd_t) * PTRS_PER_PMD);
33532
33533 - pud_populate(mm, pud, pmd);
33534 + pyd_populate(mm, pyd, pxd);
33535 }
33536 }
33537
33538 pgd_t *pgd_alloc(struct mm_struct *mm)
33539 {
33540 pgd_t *pgd;
33541 - pmd_t *pmds[PREALLOCATED_PMDS];
33542 + pxd_t *pxds[PREALLOCATED_PXDS];
33543
33544 pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
33545
33546 @@ -283,11 +350,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
33547
33548 mm->pgd = pgd;
33549
33550 - if (preallocate_pmds(pmds) != 0)
33551 + if (preallocate_pxds(pxds) != 0)
33552 goto out_free_pgd;
33553
33554 if (paravirt_pgd_alloc(mm) != 0)
33555 - goto out_free_pmds;
33556 + goto out_free_pxds;
33557
33558 /*
33559 * Make sure that pre-populating the pmds is atomic with
33560 @@ -297,14 +364,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
33561 spin_lock(&pgd_lock);
33562
33563 pgd_ctor(mm, pgd);
33564 - pgd_prepopulate_pmd(mm, pgd, pmds);
33565 + pgd_prepopulate_pxd(mm, pgd, pxds);
33566
33567 spin_unlock(&pgd_lock);
33568
33569 return pgd;
33570
33571 -out_free_pmds:
33572 - free_pmds(pmds);
33573 +out_free_pxds:
33574 + free_pxds(pxds);
33575 out_free_pgd:
33576 free_page((unsigned long)pgd);
33577 out:
33578 @@ -313,7 +380,7 @@ out:
33579
33580 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
33581 {
33582 - pgd_mop_up_pmds(mm, pgd);
33583 + pgd_mop_up_pxds(mm, pgd);
33584 pgd_dtor(pgd);
33585 paravirt_pgd_free(mm, pgd);
33586 free_page((unsigned long)pgd);
33587 diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
33588 index 4dd8cf6..f9d143e 100644
33589 --- a/arch/x86/mm/pgtable_32.c
33590 +++ b/arch/x86/mm/pgtable_32.c
33591 @@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
33592 return;
33593 }
33594 pte = pte_offset_kernel(pmd, vaddr);
33595 +
33596 + pax_open_kernel();
33597 if (pte_val(pteval))
33598 set_pte_at(&init_mm, vaddr, pte, pteval);
33599 else
33600 pte_clear(&init_mm, vaddr, pte);
33601 + pax_close_kernel();
33602
33603 /*
33604 * It's enough to flush this one mapping.
33605 diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
33606 index e666cbb..61788c45 100644
33607 --- a/arch/x86/mm/physaddr.c
33608 +++ b/arch/x86/mm/physaddr.c
33609 @@ -10,7 +10,7 @@
33610 #ifdef CONFIG_X86_64
33611
33612 #ifdef CONFIG_DEBUG_VIRTUAL
33613 -unsigned long __phys_addr(unsigned long x)
33614 +unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
33615 {
33616 unsigned long y = x - __START_KERNEL_map;
33617
33618 @@ -67,7 +67,7 @@ EXPORT_SYMBOL(__virt_addr_valid);
33619 #else
33620
33621 #ifdef CONFIG_DEBUG_VIRTUAL
33622 -unsigned long __phys_addr(unsigned long x)
33623 +unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
33624 {
33625 unsigned long phys_addr = x - PAGE_OFFSET;
33626 /* VMALLOC_* aren't constants */
33627 diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
33628 index 90555bf..f5f1828 100644
33629 --- a/arch/x86/mm/setup_nx.c
33630 +++ b/arch/x86/mm/setup_nx.c
33631 @@ -5,8 +5,10 @@
33632 #include <asm/pgtable.h>
33633 #include <asm/proto.h>
33634
33635 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
33636 static int disable_nx;
33637
33638 +#ifndef CONFIG_PAX_PAGEEXEC
33639 /*
33640 * noexec = on|off
33641 *
33642 @@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
33643 return 0;
33644 }
33645 early_param("noexec", noexec_setup);
33646 +#endif
33647 +
33648 +#endif
33649
33650 void x86_configure_nx(void)
33651 {
33652 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
33653 if (cpu_has_nx && !disable_nx)
33654 __supported_pte_mask |= _PAGE_NX;
33655 else
33656 +#endif
33657 __supported_pte_mask &= ~_PAGE_NX;
33658 }
33659
33660 diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
33661 index dd8dda1..9e9b0f6 100644
33662 --- a/arch/x86/mm/tlb.c
33663 +++ b/arch/x86/mm/tlb.c
33664 @@ -48,7 +48,11 @@ void leave_mm(int cpu)
33665 BUG();
33666 if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
33667 cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
33668 +
33669 +#ifndef CONFIG_PAX_PER_CPU_PGD
33670 load_cr3(swapper_pg_dir);
33671 +#endif
33672 +
33673 }
33674 }
33675 EXPORT_SYMBOL_GPL(leave_mm);
33676 diff --git a/arch/x86/mm/uderef_64.c b/arch/x86/mm/uderef_64.c
33677 new file mode 100644
33678 index 0000000..dace51c
33679 --- /dev/null
33680 +++ b/arch/x86/mm/uderef_64.c
33681 @@ -0,0 +1,37 @@
33682 +#include <linux/mm.h>
33683 +#include <asm/pgtable.h>
33684 +#include <asm/uaccess.h>
33685 +
33686 +#ifdef CONFIG_PAX_MEMORY_UDEREF
33687 +/* PaX: due to the special call convention these functions must
33688 + * - remain leaf functions under all configurations,
33689 + * - never be called directly, only dereferenced from the wrappers.
33690 + */
33691 +void __pax_open_userland(void)
33692 +{
33693 + unsigned int cpu;
33694 +
33695 + if (unlikely(!segment_eq(get_fs(), USER_DS)))
33696 + return;
33697 +
33698 + cpu = raw_get_cpu();
33699 + BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_KERNEL);
33700 + write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
33701 + raw_put_cpu_no_resched();
33702 +}
33703 +EXPORT_SYMBOL(__pax_open_userland);
33704 +
33705 +void __pax_close_userland(void)
33706 +{
33707 + unsigned int cpu;
33708 +
33709 + if (unlikely(!segment_eq(get_fs(), USER_DS)))
33710 + return;
33711 +
33712 + cpu = raw_get_cpu();
33713 + BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_USER);
33714 + write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
33715 + raw_put_cpu_no_resched();
33716 +}
33717 +EXPORT_SYMBOL(__pax_close_userland);
33718 +#endif
33719 diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
33720 index 0149575..f746de8 100644
33721 --- a/arch/x86/net/bpf_jit.S
33722 +++ b/arch/x86/net/bpf_jit.S
33723 @@ -9,6 +9,7 @@
33724 */
33725 #include <linux/linkage.h>
33726 #include <asm/dwarf2.h>
33727 +#include <asm/alternative-asm.h>
33728
33729 /*
33730 * Calling convention :
33731 @@ -35,6 +36,7 @@ sk_load_word_positive_offset:
33732 jle bpf_slow_path_word
33733 mov (SKBDATA,%rsi),%eax
33734 bswap %eax /* ntohl() */
33735 + pax_force_retaddr
33736 ret
33737
33738 sk_load_half:
33739 @@ -52,6 +54,7 @@ sk_load_half_positive_offset:
33740 jle bpf_slow_path_half
33741 movzwl (SKBDATA,%rsi),%eax
33742 rol $8,%ax # ntohs()
33743 + pax_force_retaddr
33744 ret
33745
33746 sk_load_byte:
33747 @@ -66,6 +69,7 @@ sk_load_byte_positive_offset:
33748 cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */
33749 jle bpf_slow_path_byte
33750 movzbl (SKBDATA,%rsi),%eax
33751 + pax_force_retaddr
33752 ret
33753
33754 /**
33755 @@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset:
33756 movzbl (SKBDATA,%rsi),%ebx
33757 and $15,%bl
33758 shl $2,%bl
33759 + pax_force_retaddr
33760 ret
33761
33762 /* rsi contains offset and can be scratched */
33763 @@ -109,6 +114,7 @@ bpf_slow_path_word:
33764 js bpf_error
33765 mov -12(%rbp),%eax
33766 bswap %eax
33767 + pax_force_retaddr
33768 ret
33769
33770 bpf_slow_path_half:
33771 @@ -117,12 +123,14 @@ bpf_slow_path_half:
33772 mov -12(%rbp),%ax
33773 rol $8,%ax
33774 movzwl %ax,%eax
33775 + pax_force_retaddr
33776 ret
33777
33778 bpf_slow_path_byte:
33779 bpf_slow_path_common(1)
33780 js bpf_error
33781 movzbl -12(%rbp),%eax
33782 + pax_force_retaddr
33783 ret
33784
33785 bpf_slow_path_byte_msh:
33786 @@ -133,6 +141,7 @@ bpf_slow_path_byte_msh:
33787 and $15,%al
33788 shl $2,%al
33789 xchg %eax,%ebx
33790 + pax_force_retaddr
33791 ret
33792
33793 #define sk_negative_common(SIZE) \
33794 @@ -157,6 +166,7 @@ sk_load_word_negative_offset:
33795 sk_negative_common(4)
33796 mov (%rax), %eax
33797 bswap %eax
33798 + pax_force_retaddr
33799 ret
33800
33801 bpf_slow_path_half_neg:
33802 @@ -168,6 +178,7 @@ sk_load_half_negative_offset:
33803 mov (%rax),%ax
33804 rol $8,%ax
33805 movzwl %ax,%eax
33806 + pax_force_retaddr
33807 ret
33808
33809 bpf_slow_path_byte_neg:
33810 @@ -177,6 +188,7 @@ sk_load_byte_negative_offset:
33811 .globl sk_load_byte_negative_offset
33812 sk_negative_common(1)
33813 movzbl (%rax), %eax
33814 + pax_force_retaddr
33815 ret
33816
33817 bpf_slow_path_byte_msh_neg:
33818 @@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset:
33819 and $15,%al
33820 shl $2,%al
33821 xchg %eax,%ebx
33822 + pax_force_retaddr
33823 ret
33824
33825 bpf_error:
33826 @@ -197,4 +210,5 @@ bpf_error:
33827 xor %eax,%eax
33828 mov -8(%rbp),%rbx
33829 leaveq
33830 + pax_force_retaddr
33831 ret
33832 diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
33833 index 6d5663a..f1ec380 100644
33834 --- a/arch/x86/net/bpf_jit_comp.c
33835 +++ b/arch/x86/net/bpf_jit_comp.c
33836 @@ -50,13 +50,90 @@ static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len)
33837 return ptr + len;
33838 }
33839
33840 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
33841 +#define MAX_INSTR_CODE_SIZE 96
33842 +#else
33843 +#define MAX_INSTR_CODE_SIZE 64
33844 +#endif
33845 +
33846 #define EMIT(bytes, len) do { prog = emit_code(prog, bytes, len); } while (0)
33847
33848 #define EMIT1(b1) EMIT(b1, 1)
33849 #define EMIT2(b1, b2) EMIT((b1) + ((b2) << 8), 2)
33850 #define EMIT3(b1, b2, b3) EMIT((b1) + ((b2) << 8) + ((b3) << 16), 3)
33851 #define EMIT4(b1, b2, b3, b4) EMIT((b1) + ((b2) << 8) + ((b3) << 16) + ((b4) << 24), 4)
33852 +
33853 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
33854 +/* original constant will appear in ecx */
33855 +#define DILUTE_CONST_SEQUENCE(_off, _key) \
33856 +do { \
33857 + /* mov ecx, randkey */ \
33858 + EMIT1(0xb9); \
33859 + EMIT(_key, 4); \
33860 + /* xor ecx, randkey ^ off */ \
33861 + EMIT2(0x81, 0xf1); \
33862 + EMIT((_key) ^ (_off), 4); \
33863 +} while (0)
33864 +
33865 +#define EMIT1_off32(b1, _off) \
33866 +do { \
33867 + switch (b1) { \
33868 + case 0x05: /* add eax, imm32 */ \
33869 + case 0x2d: /* sub eax, imm32 */ \
33870 + case 0x25: /* and eax, imm32 */ \
33871 + case 0x0d: /* or eax, imm32 */ \
33872 + case 0xb8: /* mov eax, imm32 */ \
33873 + case 0x35: /* xor eax, imm32 */ \
33874 + case 0x3d: /* cmp eax, imm32 */ \
33875 + case 0xa9: /* test eax, imm32 */ \
33876 + DILUTE_CONST_SEQUENCE(_off, randkey); \
33877 + EMIT2((b1) - 4, 0xc8); /* convert imm instruction to eax, ecx */\
33878 + break; \
33879 + case 0xbb: /* mov ebx, imm32 */ \
33880 + DILUTE_CONST_SEQUENCE(_off, randkey); \
33881 + /* mov ebx, ecx */ \
33882 + EMIT2(0x89, 0xcb); \
33883 + break; \
33884 + case 0xbe: /* mov esi, imm32 */ \
33885 + DILUTE_CONST_SEQUENCE(_off, randkey); \
33886 + /* mov esi, ecx */ \
33887 + EMIT2(0x89, 0xce); \
33888 + break; \
33889 + case 0xe8: /* call rel imm32, always to known funcs */ \
33890 + EMIT1(b1); \
33891 + EMIT(_off, 4); \
33892 + break; \
33893 + case 0xe9: /* jmp rel imm32 */ \
33894 + EMIT1(b1); \
33895 + EMIT(_off, 4); \
33896 + /* prevent fall-through, we're not called if off = 0 */ \
33897 + EMIT(0xcccccccc, 4); \
33898 + EMIT(0xcccccccc, 4); \
33899 + break; \
33900 + default: \
33901 + BUILD_BUG(); \
33902 + } \
33903 +} while (0)
33904 +
33905 +#define EMIT2_off32(b1, b2, _off) \
33906 +do { \
33907 + if ((b1) == 0x8d && (b2) == 0xb3) { /* lea esi, [rbx+imm32] */ \
33908 + EMIT2(0x8d, 0xb3); /* lea esi, [rbx+randkey] */ \
33909 + EMIT(randkey, 4); \
33910 + EMIT2(0x8d, 0xb6); /* lea esi, [esi+off-randkey] */ \
33911 + EMIT((_off) - randkey, 4); \
33912 + } else if ((b1) == 0x69 && (b2) == 0xc0) { /* imul eax, imm32 */\
33913 + DILUTE_CONST_SEQUENCE(_off, randkey); \
33914 + /* imul eax, ecx */ \
33915 + EMIT3(0x0f, 0xaf, 0xc1); \
33916 + } else { \
33917 + BUILD_BUG(); \
33918 + } \
33919 +} while (0)
33920 +#else
33921 #define EMIT1_off32(b1, off) do { EMIT1(b1); EMIT(off, 4);} while (0)
33922 +#define EMIT2_off32(b1, b2, off) do { EMIT2(b1, b2); EMIT(off, 4);} while (0)
33923 +#endif
33924
33925 #define CLEAR_A() EMIT2(0x31, 0xc0) /* xor %eax,%eax */
33926 #define CLEAR_X() EMIT2(0x31, 0xdb) /* xor %ebx,%ebx */
33927 @@ -91,6 +168,24 @@ do { \
33928 #define X86_JBE 0x76
33929 #define X86_JA 0x77
33930
33931 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
33932 +#define APPEND_FLOW_VERIFY() \
33933 +do { \
33934 + /* mov ecx, randkey */ \
33935 + EMIT1(0xb9); \
33936 + EMIT(randkey, 4); \
33937 + /* cmp ecx, randkey */ \
33938 + EMIT2(0x81, 0xf9); \
33939 + EMIT(randkey, 4); \
33940 + /* jz after 8 int 3s */ \
33941 + EMIT2(0x74, 0x08); \
33942 + EMIT(0xcccccccc, 4); \
33943 + EMIT(0xcccccccc, 4); \
33944 +} while (0)
33945 +#else
33946 +#define APPEND_FLOW_VERIFY() do { } while (0)
33947 +#endif
33948 +
33949 #define EMIT_COND_JMP(op, offset) \
33950 do { \
33951 if (is_near(offset)) \
33952 @@ -98,6 +193,7 @@ do { \
33953 else { \
33954 EMIT2(0x0f, op + 0x10); \
33955 EMIT(offset, 4); /* jxx .+off32 */ \
33956 + APPEND_FLOW_VERIFY(); \
33957 } \
33958 } while (0)
33959
33960 @@ -145,55 +241,54 @@ static int pkt_type_offset(void)
33961 return -1;
33962 }
33963
33964 -struct bpf_binary_header {
33965 - unsigned int pages;
33966 - /* Note : for security reasons, bpf code will follow a randomly
33967 - * sized amount of int3 instructions
33968 - */
33969 - u8 image[];
33970 -};
33971 -
33972 -static struct bpf_binary_header *bpf_alloc_binary(unsigned int proglen,
33973 +/* Note : for security reasons, bpf code will follow a randomly
33974 + * sized amount of int3 instructions
33975 + */
33976 +static u8 *bpf_alloc_binary(unsigned int proglen,
33977 u8 **image_ptr)
33978 {
33979 unsigned int sz, hole;
33980 - struct bpf_binary_header *header;
33981 + u8 *header;
33982
33983 /* Most of BPF filters are really small,
33984 * but if some of them fill a page, allow at least
33985 * 128 extra bytes to insert a random section of int3
33986 */
33987 - sz = round_up(proglen + sizeof(*header) + 128, PAGE_SIZE);
33988 - header = module_alloc(sz);
33989 + sz = round_up(proglen + 128, PAGE_SIZE);
33990 + header = module_alloc_exec(sz);
33991 if (!header)
33992 return NULL;
33993
33994 + pax_open_kernel();
33995 memset(header, 0xcc, sz); /* fill whole space with int3 instructions */
33996 + pax_close_kernel();
33997
33998 - header->pages = sz / PAGE_SIZE;
33999 - hole = min(sz - (proglen + sizeof(*header)), PAGE_SIZE - sizeof(*header));
34000 + hole = PAGE_SIZE - (proglen & ~PAGE_MASK);
34001
34002 /* insert a random number of int3 instructions before BPF code */
34003 - *image_ptr = &header->image[prandom_u32() % hole];
34004 + *image_ptr = &header[prandom_u32() % hole];
34005 return header;
34006 }
34007
34008 void bpf_jit_compile(struct sk_filter *fp)
34009 {
34010 - u8 temp[64];
34011 + u8 temp[MAX_INSTR_CODE_SIZE];
34012 u8 *prog;
34013 unsigned int proglen, oldproglen = 0;
34014 int ilen, i;
34015 int t_offset, f_offset;
34016 u8 t_op, f_op, seen = 0, pass;
34017 u8 *image = NULL;
34018 - struct bpf_binary_header *header = NULL;
34019 + u8 *header = NULL;
34020 u8 *func;
34021 int pc_ret0 = -1; /* bpf index of first RET #0 instruction (if any) */
34022 unsigned int cleanup_addr; /* epilogue code offset */
34023 unsigned int *addrs;
34024 const struct sock_filter *filter = fp->insns;
34025 int flen = fp->len;
34026 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
34027 + unsigned int randkey;
34028 +#endif
34029
34030 if (!bpf_jit_enable)
34031 return;
34032 @@ -203,10 +298,10 @@ void bpf_jit_compile(struct sk_filter *fp)
34033 return;
34034
34035 /* Before first pass, make a rough estimation of addrs[]
34036 - * each bpf instruction is translated to less than 64 bytes
34037 + * each bpf instruction is translated to less than MAX_INSTR_CODE_SIZE bytes
34038 */
34039 for (proglen = 0, i = 0; i < flen; i++) {
34040 - proglen += 64;
34041 + proglen += MAX_INSTR_CODE_SIZE;
34042 addrs[i] = proglen;
34043 }
34044 cleanup_addr = proglen; /* epilogue address */
34045 @@ -285,6 +380,10 @@ void bpf_jit_compile(struct sk_filter *fp)
34046 for (i = 0; i < flen; i++) {
34047 unsigned int K = filter[i].k;
34048
34049 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
34050 + randkey = prandom_u32();
34051 +#endif
34052 +
34053 switch (filter[i].code) {
34054 case BPF_S_ALU_ADD_X: /* A += X; */
34055 seen |= SEEN_XREG;
34056 @@ -317,10 +416,8 @@ void bpf_jit_compile(struct sk_filter *fp)
34057 case BPF_S_ALU_MUL_K: /* A *= K */
34058 if (is_imm8(K))
34059 EMIT3(0x6b, 0xc0, K); /* imul imm8,%eax,%eax */
34060 - else {
34061 - EMIT2(0x69, 0xc0); /* imul imm32,%eax */
34062 - EMIT(K, 4);
34063 - }
34064 + else
34065 + EMIT2_off32(0x69, 0xc0, K); /* imul imm32,%eax */
34066 break;
34067 case BPF_S_ALU_DIV_X: /* A /= X; */
34068 seen |= SEEN_XREG;
34069 @@ -364,7 +461,11 @@ void bpf_jit_compile(struct sk_filter *fp)
34070 break;
34071 }
34072 EMIT2(0x31, 0xd2); /* xor %edx,%edx */
34073 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
34074 + DILUTE_CONST_SEQUENCE(K, randkey);
34075 +#else
34076 EMIT1(0xb9);EMIT(K, 4); /* mov imm32,%ecx */
34077 +#endif
34078 EMIT2(0xf7, 0xf1); /* div %ecx */
34079 EMIT2(0x89, 0xd0); /* mov %edx,%eax */
34080 break;
34081 @@ -372,7 +473,11 @@ void bpf_jit_compile(struct sk_filter *fp)
34082 if (K == 1)
34083 break;
34084 EMIT2(0x31, 0xd2); /* xor %edx,%edx */
34085 +#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
34086 + DILUTE_CONST_SEQUENCE(K, randkey);
34087 +#else
34088 EMIT1(0xb9);EMIT(K, 4); /* mov imm32,%ecx */
34089 +#endif
34090 EMIT2(0xf7, 0xf1); /* div %ecx */
34091 break;
34092 case BPF_S_ALU_AND_X:
34093 @@ -643,8 +748,7 @@ common_load_ind: seen |= SEEN_DATAREF | SEEN_XREG;
34094 if (is_imm8(K)) {
34095 EMIT3(0x8d, 0x73, K); /* lea imm8(%rbx), %esi */
34096 } else {
34097 - EMIT2(0x8d, 0xb3); /* lea imm32(%rbx),%esi */
34098 - EMIT(K, 4);
34099 + EMIT2_off32(0x8d, 0xb3, K); /* lea imm32(%rbx),%esi */
34100 }
34101 } else {
34102 EMIT2(0x89,0xde); /* mov %ebx,%esi */
34103 @@ -734,10 +838,12 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i];
34104 if (unlikely(proglen + ilen > oldproglen)) {
34105 pr_err("bpb_jit_compile fatal error\n");
34106 kfree(addrs);
34107 - module_free(NULL, header);
34108 + module_free_exec(NULL, image);
34109 return;
34110 }
34111 + pax_open_kernel();
34112 memcpy(image + proglen, temp, ilen);
34113 + pax_close_kernel();
34114 }
34115 proglen += ilen;
34116 addrs[i] = proglen;
34117 @@ -770,7 +876,6 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i];
34118
34119 if (image) {
34120 bpf_flush_icache(header, image + proglen);
34121 - set_memory_ro((unsigned long)header, header->pages);
34122 fp->bpf_func = (void *)image;
34123 fp->jited = 1;
34124 }
34125 @@ -783,10 +888,9 @@ static void bpf_jit_free_deferred(struct work_struct *work)
34126 {
34127 struct sk_filter *fp = container_of(work, struct sk_filter, work);
34128 unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
34129 - struct bpf_binary_header *header = (void *)addr;
34130
34131 - set_memory_rw(addr, header->pages);
34132 - module_free(NULL, header);
34133 + set_memory_rw(addr, 1);
34134 + module_free_exec(NULL, (void *)addr);
34135 kfree(fp);
34136 }
34137
34138 diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
34139 index 5d04be5..2beeaa2 100644
34140 --- a/arch/x86/oprofile/backtrace.c
34141 +++ b/arch/x86/oprofile/backtrace.c
34142 @@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
34143 struct stack_frame_ia32 *fp;
34144 unsigned long bytes;
34145
34146 - bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34147 + bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34148 if (bytes != 0)
34149 return NULL;
34150
34151 - fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
34152 + fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
34153
34154 oprofile_add_trace(bufhead[0].return_address);
34155
34156 @@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
34157 struct stack_frame bufhead[2];
34158 unsigned long bytes;
34159
34160 - bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34161 + bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34162 if (bytes != 0)
34163 return NULL;
34164
34165 @@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
34166 {
34167 struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
34168
34169 - if (!user_mode_vm(regs)) {
34170 + if (!user_mode(regs)) {
34171 unsigned long stack = kernel_stack_pointer(regs);
34172 if (depth)
34173 dump_trace(NULL, regs, (unsigned long *)stack, 0,
34174 diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
34175 index 379e8bd..6386e09 100644
34176 --- a/arch/x86/oprofile/nmi_int.c
34177 +++ b/arch/x86/oprofile/nmi_int.c
34178 @@ -23,6 +23,7 @@
34179 #include <asm/nmi.h>
34180 #include <asm/msr.h>
34181 #include <asm/apic.h>
34182 +#include <asm/pgtable.h>
34183
34184 #include "op_counter.h"
34185 #include "op_x86_model.h"
34186 @@ -785,8 +786,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
34187 if (ret)
34188 return ret;
34189
34190 - if (!model->num_virt_counters)
34191 - model->num_virt_counters = model->num_counters;
34192 + if (!model->num_virt_counters) {
34193 + pax_open_kernel();
34194 + *(unsigned int *)&model->num_virt_counters = model->num_counters;
34195 + pax_close_kernel();
34196 + }
34197
34198 mux_init(ops);
34199
34200 diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
34201 index 50d86c0..7985318 100644
34202 --- a/arch/x86/oprofile/op_model_amd.c
34203 +++ b/arch/x86/oprofile/op_model_amd.c
34204 @@ -519,9 +519,11 @@ static int op_amd_init(struct oprofile_operations *ops)
34205 num_counters = AMD64_NUM_COUNTERS;
34206 }
34207
34208 - op_amd_spec.num_counters = num_counters;
34209 - op_amd_spec.num_controls = num_counters;
34210 - op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34211 + pax_open_kernel();
34212 + *(unsigned int *)&op_amd_spec.num_counters = num_counters;
34213 + *(unsigned int *)&op_amd_spec.num_controls = num_counters;
34214 + *(unsigned int *)&op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34215 + pax_close_kernel();
34216
34217 return 0;
34218 }
34219 diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
34220 index d90528e..0127e2b 100644
34221 --- a/arch/x86/oprofile/op_model_ppro.c
34222 +++ b/arch/x86/oprofile/op_model_ppro.c
34223 @@ -19,6 +19,7 @@
34224 #include <asm/msr.h>
34225 #include <asm/apic.h>
34226 #include <asm/nmi.h>
34227 +#include <asm/pgtable.h>
34228
34229 #include "op_x86_model.h"
34230 #include "op_counter.h"
34231 @@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
34232
34233 num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
34234
34235 - op_arch_perfmon_spec.num_counters = num_counters;
34236 - op_arch_perfmon_spec.num_controls = num_counters;
34237 + pax_open_kernel();
34238 + *(unsigned int *)&op_arch_perfmon_spec.num_counters = num_counters;
34239 + *(unsigned int *)&op_arch_perfmon_spec.num_controls = num_counters;
34240 + pax_close_kernel();
34241 }
34242
34243 static int arch_perfmon_init(struct oprofile_operations *ignore)
34244 diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
34245 index 71e8a67..6a313bb 100644
34246 --- a/arch/x86/oprofile/op_x86_model.h
34247 +++ b/arch/x86/oprofile/op_x86_model.h
34248 @@ -52,7 +52,7 @@ struct op_x86_model_spec {
34249 void (*switch_ctrl)(struct op_x86_model_spec const *model,
34250 struct op_msrs const * const msrs);
34251 #endif
34252 -};
34253 +} __do_const;
34254
34255 struct op_counter_config;
34256
34257 diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
34258 index 84b9d67..260e5ff 100644
34259 --- a/arch/x86/pci/intel_mid_pci.c
34260 +++ b/arch/x86/pci/intel_mid_pci.c
34261 @@ -245,7 +245,7 @@ int __init intel_mid_pci_init(void)
34262 pr_info("Intel MID platform detected, using MID PCI ops\n");
34263 pci_mmcfg_late_init();
34264 pcibios_enable_irq = intel_mid_pci_irq_enable;
34265 - pci_root_ops = intel_mid_pci_ops;
34266 + memcpy((void *)&pci_root_ops, &intel_mid_pci_ops, sizeof pci_root_ops);
34267 pci_soc_mode = 1;
34268 /* Continue with standard init */
34269 return 1;
34270 diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
34271 index 84112f5..6334d60 100644
34272 --- a/arch/x86/pci/irq.c
34273 +++ b/arch/x86/pci/irq.c
34274 @@ -50,7 +50,7 @@ struct irq_router {
34275 struct irq_router_handler {
34276 u16 vendor;
34277 int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
34278 -};
34279 +} __do_const;
34280
34281 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
34282 void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
34283 @@ -790,7 +790,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
34284 return 0;
34285 }
34286
34287 -static __initdata struct irq_router_handler pirq_routers[] = {
34288 +static __initconst const struct irq_router_handler pirq_routers[] = {
34289 { PCI_VENDOR_ID_INTEL, intel_router_probe },
34290 { PCI_VENDOR_ID_AL, ali_router_probe },
34291 { PCI_VENDOR_ID_ITE, ite_router_probe },
34292 @@ -817,7 +817,7 @@ static struct pci_dev *pirq_router_dev;
34293 static void __init pirq_find_router(struct irq_router *r)
34294 {
34295 struct irq_routing_table *rt = pirq_table;
34296 - struct irq_router_handler *h;
34297 + const struct irq_router_handler *h;
34298
34299 #ifdef CONFIG_PCI_BIOS
34300 if (!rt->signature) {
34301 @@ -1090,7 +1090,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
34302 return 0;
34303 }
34304
34305 -static struct dmi_system_id __initdata pciirq_dmi_table[] = {
34306 +static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
34307 {
34308 .callback = fix_broken_hp_bios_irq9,
34309 .ident = "HP Pavilion N5400 Series Laptop",
34310 diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
34311 index c77b24a..c979855 100644
34312 --- a/arch/x86/pci/pcbios.c
34313 +++ b/arch/x86/pci/pcbios.c
34314 @@ -79,7 +79,7 @@ union bios32 {
34315 static struct {
34316 unsigned long address;
34317 unsigned short segment;
34318 -} bios32_indirect = { 0, __KERNEL_CS };
34319 +} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
34320
34321 /*
34322 * Returns the entry point for the given service, NULL on error
34323 @@ -92,37 +92,80 @@ static unsigned long bios32_service(unsigned long service)
34324 unsigned long length; /* %ecx */
34325 unsigned long entry; /* %edx */
34326 unsigned long flags;
34327 + struct desc_struct d, *gdt;
34328
34329 local_irq_save(flags);
34330 - __asm__("lcall *(%%edi); cld"
34331 +
34332 + gdt = get_cpu_gdt_table(smp_processor_id());
34333 +
34334 + pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
34335 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34336 + pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
34337 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34338 +
34339 + __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
34340 : "=a" (return_code),
34341 "=b" (address),
34342 "=c" (length),
34343 "=d" (entry)
34344 : "0" (service),
34345 "1" (0),
34346 - "D" (&bios32_indirect));
34347 + "D" (&bios32_indirect),
34348 + "r"(__PCIBIOS_DS)
34349 + : "memory");
34350 +
34351 + pax_open_kernel();
34352 + gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
34353 + gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
34354 + gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
34355 + gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
34356 + pax_close_kernel();
34357 +
34358 local_irq_restore(flags);
34359
34360 switch (return_code) {
34361 - case 0:
34362 - return address + entry;
34363 - case 0x80: /* Not present */
34364 - printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
34365 - return 0;
34366 - default: /* Shouldn't happen */
34367 - printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
34368 - service, return_code);
34369 + case 0: {
34370 + int cpu;
34371 + unsigned char flags;
34372 +
34373 + printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
34374 + if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
34375 + printk(KERN_WARNING "bios32_service: not valid\n");
34376 return 0;
34377 + }
34378 + address = address + PAGE_OFFSET;
34379 + length += 16UL; /* some BIOSs underreport this... */
34380 + flags = 4;
34381 + if (length >= 64*1024*1024) {
34382 + length >>= PAGE_SHIFT;
34383 + flags |= 8;
34384 + }
34385 +
34386 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
34387 + gdt = get_cpu_gdt_table(cpu);
34388 + pack_descriptor(&d, address, length, 0x9b, flags);
34389 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34390 + pack_descriptor(&d, address, length, 0x93, flags);
34391 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34392 + }
34393 + return entry;
34394 + }
34395 + case 0x80: /* Not present */
34396 + printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
34397 + return 0;
34398 + default: /* Shouldn't happen */
34399 + printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
34400 + service, return_code);
34401 + return 0;
34402 }
34403 }
34404
34405 static struct {
34406 unsigned long address;
34407 unsigned short segment;
34408 -} pci_indirect = { 0, __KERNEL_CS };
34409 +} pci_indirect __read_only = { 0, __PCIBIOS_CS };
34410
34411 -static int pci_bios_present;
34412 +static int pci_bios_present __read_only;
34413
34414 static int check_pcibios(void)
34415 {
34416 @@ -131,11 +174,13 @@ static int check_pcibios(void)
34417 unsigned long flags, pcibios_entry;
34418
34419 if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
34420 - pci_indirect.address = pcibios_entry + PAGE_OFFSET;
34421 + pci_indirect.address = pcibios_entry;
34422
34423 local_irq_save(flags);
34424 - __asm__(
34425 - "lcall *(%%edi); cld\n\t"
34426 + __asm__("movw %w6, %%ds\n\t"
34427 + "lcall *%%ss:(%%edi); cld\n\t"
34428 + "push %%ss\n\t"
34429 + "pop %%ds\n\t"
34430 "jc 1f\n\t"
34431 "xor %%ah, %%ah\n"
34432 "1:"
34433 @@ -144,7 +189,8 @@ static int check_pcibios(void)
34434 "=b" (ebx),
34435 "=c" (ecx)
34436 : "1" (PCIBIOS_PCI_BIOS_PRESENT),
34437 - "D" (&pci_indirect)
34438 + "D" (&pci_indirect),
34439 + "r" (__PCIBIOS_DS)
34440 : "memory");
34441 local_irq_restore(flags);
34442
34443 @@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34444
34445 switch (len) {
34446 case 1:
34447 - __asm__("lcall *(%%esi); cld\n\t"
34448 + __asm__("movw %w6, %%ds\n\t"
34449 + "lcall *%%ss:(%%esi); cld\n\t"
34450 + "push %%ss\n\t"
34451 + "pop %%ds\n\t"
34452 "jc 1f\n\t"
34453 "xor %%ah, %%ah\n"
34454 "1:"
34455 @@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34456 : "1" (PCIBIOS_READ_CONFIG_BYTE),
34457 "b" (bx),
34458 "D" ((long)reg),
34459 - "S" (&pci_indirect));
34460 + "S" (&pci_indirect),
34461 + "r" (__PCIBIOS_DS));
34462 /*
34463 * Zero-extend the result beyond 8 bits, do not trust the
34464 * BIOS having done it:
34465 @@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34466 *value &= 0xff;
34467 break;
34468 case 2:
34469 - __asm__("lcall *(%%esi); cld\n\t"
34470 + __asm__("movw %w6, %%ds\n\t"
34471 + "lcall *%%ss:(%%esi); cld\n\t"
34472 + "push %%ss\n\t"
34473 + "pop %%ds\n\t"
34474 "jc 1f\n\t"
34475 "xor %%ah, %%ah\n"
34476 "1:"
34477 @@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34478 : "1" (PCIBIOS_READ_CONFIG_WORD),
34479 "b" (bx),
34480 "D" ((long)reg),
34481 - "S" (&pci_indirect));
34482 + "S" (&pci_indirect),
34483 + "r" (__PCIBIOS_DS));
34484 /*
34485 * Zero-extend the result beyond 16 bits, do not trust the
34486 * BIOS having done it:
34487 @@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34488 *value &= 0xffff;
34489 break;
34490 case 4:
34491 - __asm__("lcall *(%%esi); cld\n\t"
34492 + __asm__("movw %w6, %%ds\n\t"
34493 + "lcall *%%ss:(%%esi); cld\n\t"
34494 + "push %%ss\n\t"
34495 + "pop %%ds\n\t"
34496 "jc 1f\n\t"
34497 "xor %%ah, %%ah\n"
34498 "1:"
34499 @@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34500 : "1" (PCIBIOS_READ_CONFIG_DWORD),
34501 "b" (bx),
34502 "D" ((long)reg),
34503 - "S" (&pci_indirect));
34504 + "S" (&pci_indirect),
34505 + "r" (__PCIBIOS_DS));
34506 break;
34507 }
34508
34509 @@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34510
34511 switch (len) {
34512 case 1:
34513 - __asm__("lcall *(%%esi); cld\n\t"
34514 + __asm__("movw %w6, %%ds\n\t"
34515 + "lcall *%%ss:(%%esi); cld\n\t"
34516 + "push %%ss\n\t"
34517 + "pop %%ds\n\t"
34518 "jc 1f\n\t"
34519 "xor %%ah, %%ah\n"
34520 "1:"
34521 @@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34522 "c" (value),
34523 "b" (bx),
34524 "D" ((long)reg),
34525 - "S" (&pci_indirect));
34526 + "S" (&pci_indirect),
34527 + "r" (__PCIBIOS_DS));
34528 break;
34529 case 2:
34530 - __asm__("lcall *(%%esi); cld\n\t"
34531 + __asm__("movw %w6, %%ds\n\t"
34532 + "lcall *%%ss:(%%esi); cld\n\t"
34533 + "push %%ss\n\t"
34534 + "pop %%ds\n\t"
34535 "jc 1f\n\t"
34536 "xor %%ah, %%ah\n"
34537 "1:"
34538 @@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34539 "c" (value),
34540 "b" (bx),
34541 "D" ((long)reg),
34542 - "S" (&pci_indirect));
34543 + "S" (&pci_indirect),
34544 + "r" (__PCIBIOS_DS));
34545 break;
34546 case 4:
34547 - __asm__("lcall *(%%esi); cld\n\t"
34548 + __asm__("movw %w6, %%ds\n\t"
34549 + "lcall *%%ss:(%%esi); cld\n\t"
34550 + "push %%ss\n\t"
34551 + "pop %%ds\n\t"
34552 "jc 1f\n\t"
34553 "xor %%ah, %%ah\n"
34554 "1:"
34555 @@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34556 "c" (value),
34557 "b" (bx),
34558 "D" ((long)reg),
34559 - "S" (&pci_indirect));
34560 + "S" (&pci_indirect),
34561 + "r" (__PCIBIOS_DS));
34562 break;
34563 }
34564
34565 @@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34566
34567 DBG("PCI: Fetching IRQ routing table... ");
34568 __asm__("push %%es\n\t"
34569 + "movw %w8, %%ds\n\t"
34570 "push %%ds\n\t"
34571 "pop %%es\n\t"
34572 - "lcall *(%%esi); cld\n\t"
34573 + "lcall *%%ss:(%%esi); cld\n\t"
34574 "pop %%es\n\t"
34575 + "push %%ss\n\t"
34576 + "pop %%ds\n"
34577 "jc 1f\n\t"
34578 "xor %%ah, %%ah\n"
34579 "1:"
34580 @@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34581 "1" (0),
34582 "D" ((long) &opt),
34583 "S" (&pci_indirect),
34584 - "m" (opt)
34585 + "m" (opt),
34586 + "r" (__PCIBIOS_DS)
34587 : "memory");
34588 DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
34589 if (ret & 0xff00)
34590 @@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34591 {
34592 int ret;
34593
34594 - __asm__("lcall *(%%esi); cld\n\t"
34595 + __asm__("movw %w5, %%ds\n\t"
34596 + "lcall *%%ss:(%%esi); cld\n\t"
34597 + "push %%ss\n\t"
34598 + "pop %%ds\n"
34599 "jc 1f\n\t"
34600 "xor %%ah, %%ah\n"
34601 "1:"
34602 @@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34603 : "0" (PCIBIOS_SET_PCI_HW_INT),
34604 "b" ((dev->bus->number << 8) | dev->devfn),
34605 "c" ((irq << 8) | (pin + 10)),
34606 - "S" (&pci_indirect));
34607 + "S" (&pci_indirect),
34608 + "r" (__PCIBIOS_DS));
34609 return !(ret & 0xff00);
34610 }
34611 EXPORT_SYMBOL(pcibios_set_irq_routing);
34612 diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
34613 index 9ee3491..872192f 100644
34614 --- a/arch/x86/platform/efi/efi_32.c
34615 +++ b/arch/x86/platform/efi/efi_32.c
34616 @@ -59,11 +59,22 @@ void efi_call_phys_prelog(void)
34617 {
34618 struct desc_ptr gdt_descr;
34619
34620 +#ifdef CONFIG_PAX_KERNEXEC
34621 + struct desc_struct d;
34622 +#endif
34623 +
34624 local_irq_save(efi_rt_eflags);
34625
34626 load_cr3(initial_page_table);
34627 __flush_tlb_all();
34628
34629 +#ifdef CONFIG_PAX_KERNEXEC
34630 + pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
34631 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34632 + pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
34633 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34634 +#endif
34635 +
34636 gdt_descr.address = __pa(get_cpu_gdt_table(0));
34637 gdt_descr.size = GDT_SIZE - 1;
34638 load_gdt(&gdt_descr);
34639 @@ -73,11 +84,24 @@ void efi_call_phys_epilog(void)
34640 {
34641 struct desc_ptr gdt_descr;
34642
34643 +#ifdef CONFIG_PAX_KERNEXEC
34644 + struct desc_struct d;
34645 +
34646 + memset(&d, 0, sizeof d);
34647 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34648 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34649 +#endif
34650 +
34651 gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
34652 gdt_descr.size = GDT_SIZE - 1;
34653 load_gdt(&gdt_descr);
34654
34655 +#ifdef CONFIG_PAX_PER_CPU_PGD
34656 + load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34657 +#else
34658 load_cr3(swapper_pg_dir);
34659 +#endif
34660 +
34661 __flush_tlb_all();
34662
34663 local_irq_restore(efi_rt_eflags);
34664 diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
34665 index 290d397..3906bcd 100644
34666 --- a/arch/x86/platform/efi/efi_64.c
34667 +++ b/arch/x86/platform/efi/efi_64.c
34668 @@ -99,6 +99,11 @@ void __init efi_call_phys_prelog(void)
34669 vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
34670 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
34671 }
34672 +
34673 +#ifdef CONFIG_PAX_PER_CPU_PGD
34674 + load_cr3(swapper_pg_dir);
34675 +#endif
34676 +
34677 __flush_tlb_all();
34678 }
34679
34680 @@ -116,6 +121,11 @@ void __init efi_call_phys_epilog(void)
34681 for (pgd = 0; pgd < n_pgds; pgd++)
34682 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
34683 kfree(save_pgd);
34684 +
34685 +#ifdef CONFIG_PAX_PER_CPU_PGD
34686 + load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34687 +#endif
34688 +
34689 __flush_tlb_all();
34690 local_irq_restore(efi_flags);
34691 early_code_mapping_set_exec(0);
34692 diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
34693 index fbe66e6..eae5e38 100644
34694 --- a/arch/x86/platform/efi/efi_stub_32.S
34695 +++ b/arch/x86/platform/efi/efi_stub_32.S
34696 @@ -6,7 +6,9 @@
34697 */
34698
34699 #include <linux/linkage.h>
34700 +#include <linux/init.h>
34701 #include <asm/page_types.h>
34702 +#include <asm/segment.h>
34703
34704 /*
34705 * efi_call_phys(void *, ...) is a function with variable parameters.
34706 @@ -20,7 +22,7 @@
34707 * service functions will comply with gcc calling convention, too.
34708 */
34709
34710 -.text
34711 +__INIT
34712 ENTRY(efi_call_phys)
34713 /*
34714 * 0. The function can only be called in Linux kernel. So CS has been
34715 @@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
34716 * The mapping of lower virtual memory has been created in prelog and
34717 * epilog.
34718 */
34719 - movl $1f, %edx
34720 - subl $__PAGE_OFFSET, %edx
34721 - jmp *%edx
34722 +#ifdef CONFIG_PAX_KERNEXEC
34723 + movl $(__KERNEXEC_EFI_DS), %edx
34724 + mov %edx, %ds
34725 + mov %edx, %es
34726 + mov %edx, %ss
34727 + addl $2f,(1f)
34728 + ljmp *(1f)
34729 +
34730 +__INITDATA
34731 +1: .long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
34732 +.previous
34733 +
34734 +2:
34735 + subl $2b,(1b)
34736 +#else
34737 + jmp 1f-__PAGE_OFFSET
34738 1:
34739 +#endif
34740
34741 /*
34742 * 2. Now on the top of stack is the return
34743 @@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
34744 * parameter 2, ..., param n. To make things easy, we save the return
34745 * address of efi_call_phys in a global variable.
34746 */
34747 - popl %edx
34748 - movl %edx, saved_return_addr
34749 - /* get the function pointer into ECX*/
34750 - popl %ecx
34751 - movl %ecx, efi_rt_function_ptr
34752 - movl $2f, %edx
34753 - subl $__PAGE_OFFSET, %edx
34754 - pushl %edx
34755 + popl (saved_return_addr)
34756 + popl (efi_rt_function_ptr)
34757
34758 /*
34759 * 3. Clear PG bit in %CR0.
34760 @@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
34761 /*
34762 * 5. Call the physical function.
34763 */
34764 - jmp *%ecx
34765 + call *(efi_rt_function_ptr-__PAGE_OFFSET)
34766
34767 -2:
34768 /*
34769 * 6. After EFI runtime service returns, control will return to
34770 * following instruction. We'd better readjust stack pointer first.
34771 @@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
34772 movl %cr0, %edx
34773 orl $0x80000000, %edx
34774 movl %edx, %cr0
34775 - jmp 1f
34776 -1:
34777 +
34778 /*
34779 * 8. Now restore the virtual mode from flat mode by
34780 * adding EIP with PAGE_OFFSET.
34781 */
34782 - movl $1f, %edx
34783 - jmp *%edx
34784 +#ifdef CONFIG_PAX_KERNEXEC
34785 + movl $(__KERNEL_DS), %edx
34786 + mov %edx, %ds
34787 + mov %edx, %es
34788 + mov %edx, %ss
34789 + ljmp $(__KERNEL_CS),$1f
34790 +#else
34791 + jmp 1f+__PAGE_OFFSET
34792 +#endif
34793 1:
34794
34795 /*
34796 * 9. Balance the stack. And because EAX contain the return value,
34797 * we'd better not clobber it.
34798 */
34799 - leal efi_rt_function_ptr, %edx
34800 - movl (%edx), %ecx
34801 - pushl %ecx
34802 + pushl (efi_rt_function_ptr)
34803
34804 /*
34805 - * 10. Push the saved return address onto the stack and return.
34806 + * 10. Return to the saved return address.
34807 */
34808 - leal saved_return_addr, %edx
34809 - movl (%edx), %ecx
34810 - pushl %ecx
34811 - ret
34812 + jmpl *(saved_return_addr)
34813 ENDPROC(efi_call_phys)
34814 .previous
34815
34816 -.data
34817 +__INITDATA
34818 saved_return_addr:
34819 .long 0
34820 efi_rt_function_ptr:
34821 diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
34822 index e0984ef..a062dac 100644
34823 --- a/arch/x86/platform/efi/efi_stub_64.S
34824 +++ b/arch/x86/platform/efi/efi_stub_64.S
34825 @@ -11,6 +11,7 @@
34826 #include <asm/msr.h>
34827 #include <asm/processor-flags.h>
34828 #include <asm/page_types.h>
34829 +#include <asm/alternative-asm.h>
34830
34831 #define SAVE_XMM \
34832 mov %rsp, %rax; \
34833 @@ -81,6 +82,7 @@ ENTRY(efi_call0)
34834 RESTORE_PGT
34835 addq $32, %rsp
34836 RESTORE_XMM
34837 + pax_force_retaddr 0, 1
34838 ret
34839 ENDPROC(efi_call0)
34840
34841 @@ -93,6 +95,7 @@ ENTRY(efi_call1)
34842 RESTORE_PGT
34843 addq $32, %rsp
34844 RESTORE_XMM
34845 + pax_force_retaddr 0, 1
34846 ret
34847 ENDPROC(efi_call1)
34848
34849 @@ -105,6 +108,7 @@ ENTRY(efi_call2)
34850 RESTORE_PGT
34851 addq $32, %rsp
34852 RESTORE_XMM
34853 + pax_force_retaddr 0, 1
34854 ret
34855 ENDPROC(efi_call2)
34856
34857 @@ -118,6 +122,7 @@ ENTRY(efi_call3)
34858 RESTORE_PGT
34859 addq $32, %rsp
34860 RESTORE_XMM
34861 + pax_force_retaddr 0, 1
34862 ret
34863 ENDPROC(efi_call3)
34864
34865 @@ -132,6 +137,7 @@ ENTRY(efi_call4)
34866 RESTORE_PGT
34867 addq $32, %rsp
34868 RESTORE_XMM
34869 + pax_force_retaddr 0, 1
34870 ret
34871 ENDPROC(efi_call4)
34872
34873 @@ -147,6 +153,7 @@ ENTRY(efi_call5)
34874 RESTORE_PGT
34875 addq $48, %rsp
34876 RESTORE_XMM
34877 + pax_force_retaddr 0, 1
34878 ret
34879 ENDPROC(efi_call5)
34880
34881 @@ -165,6 +172,7 @@ ENTRY(efi_call6)
34882 RESTORE_PGT
34883 addq $48, %rsp
34884 RESTORE_XMM
34885 + pax_force_retaddr 0, 1
34886 ret
34887 ENDPROC(efi_call6)
34888
34889 diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
34890 index 1bbedc4..eb795b5 100644
34891 --- a/arch/x86/platform/intel-mid/intel-mid.c
34892 +++ b/arch/x86/platform/intel-mid/intel-mid.c
34893 @@ -71,9 +71,10 @@ static void intel_mid_power_off(void)
34894 {
34895 };
34896
34897 -static void intel_mid_reboot(void)
34898 +static void __noreturn intel_mid_reboot(void)
34899 {
34900 intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
34901 + BUG();
34902 }
34903
34904 static unsigned long __init intel_mid_calibrate_tsc(void)
34905 diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
34906 index d6ee929..3637cb5 100644
34907 --- a/arch/x86/platform/olpc/olpc_dt.c
34908 +++ b/arch/x86/platform/olpc/olpc_dt.c
34909 @@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
34910 return res;
34911 }
34912
34913 -static struct of_pdt_ops prom_olpc_ops __initdata = {
34914 +static struct of_pdt_ops prom_olpc_ops __initconst = {
34915 .nextprop = olpc_dt_nextprop,
34916 .getproplen = olpc_dt_getproplen,
34917 .getproperty = olpc_dt_getproperty,
34918 diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
34919 index 424f4c9..f2a2988 100644
34920 --- a/arch/x86/power/cpu.c
34921 +++ b/arch/x86/power/cpu.c
34922 @@ -137,11 +137,8 @@ static void do_fpu_end(void)
34923 static void fix_processor_context(void)
34924 {
34925 int cpu = smp_processor_id();
34926 - struct tss_struct *t = &per_cpu(init_tss, cpu);
34927 -#ifdef CONFIG_X86_64
34928 - struct desc_struct *desc = get_cpu_gdt_table(cpu);
34929 - tss_desc tss;
34930 -#endif
34931 + struct tss_struct *t = init_tss + cpu;
34932 +
34933 set_tss_desc(cpu, t); /*
34934 * This just modifies memory; should not be
34935 * necessary. But... This is necessary, because
34936 @@ -150,10 +147,6 @@ static void fix_processor_context(void)
34937 */
34938
34939 #ifdef CONFIG_X86_64
34940 - memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
34941 - tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
34942 - write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
34943 -
34944 syscall_init(); /* This sets MSR_*STAR and related */
34945 #endif
34946 load_TR_desc(); /* This does ltr */
34947 diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
34948 index bad628a..a102610 100644
34949 --- a/arch/x86/realmode/init.c
34950 +++ b/arch/x86/realmode/init.c
34951 @@ -68,7 +68,13 @@ void __init setup_real_mode(void)
34952 __va(real_mode_header->trampoline_header);
34953
34954 #ifdef CONFIG_X86_32
34955 - trampoline_header->start = __pa_symbol(startup_32_smp);
34956 + trampoline_header->start = __pa_symbol(ktla_ktva(startup_32_smp));
34957 +
34958 +#ifdef CONFIG_PAX_KERNEXEC
34959 + trampoline_header->start -= LOAD_PHYSICAL_ADDR;
34960 +#endif
34961 +
34962 + trampoline_header->boot_cs = __BOOT_CS;
34963 trampoline_header->gdt_limit = __BOOT_DS + 7;
34964 trampoline_header->gdt_base = __pa_symbol(boot_gdt);
34965 #else
34966 @@ -84,7 +90,7 @@ void __init setup_real_mode(void)
34967 *trampoline_cr4_features = read_cr4();
34968
34969 trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
34970 - trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
34971 + trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
34972 trampoline_pgd[511] = init_level4_pgt[511].pgd;
34973 #endif
34974 }
34975 diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
34976 index 3497f14..cc73b92 100644
34977 --- a/arch/x86/realmode/rm/Makefile
34978 +++ b/arch/x86/realmode/rm/Makefile
34979 @@ -66,5 +66,8 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
34980
34981 KBUILD_CFLAGS := $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
34982 -I$(srctree)/arch/x86/boot
34983 +ifdef CONSTIFY_PLUGIN
34984 +KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
34985 +endif
34986 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
34987 GCOV_PROFILE := n
34988 diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
34989 index a28221d..93c40f1 100644
34990 --- a/arch/x86/realmode/rm/header.S
34991 +++ b/arch/x86/realmode/rm/header.S
34992 @@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
34993 #endif
34994 /* APM/BIOS reboot */
34995 .long pa_machine_real_restart_asm
34996 -#ifdef CONFIG_X86_64
34997 +#ifdef CONFIG_X86_32
34998 + .long __KERNEL_CS
34999 +#else
35000 .long __KERNEL32_CS
35001 #endif
35002 END(real_mode_header)
35003 diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
35004 index 48ddd76..c26749f 100644
35005 --- a/arch/x86/realmode/rm/trampoline_32.S
35006 +++ b/arch/x86/realmode/rm/trampoline_32.S
35007 @@ -24,6 +24,12 @@
35008 #include <asm/page_types.h>
35009 #include "realmode.h"
35010
35011 +#ifdef CONFIG_PAX_KERNEXEC
35012 +#define ta(X) (X)
35013 +#else
35014 +#define ta(X) (pa_ ## X)
35015 +#endif
35016 +
35017 .text
35018 .code16
35019
35020 @@ -38,8 +44,6 @@ ENTRY(trampoline_start)
35021
35022 cli # We should be safe anyway
35023
35024 - movl tr_start, %eax # where we need to go
35025 -
35026 movl $0xA5A5A5A5, trampoline_status
35027 # write marker for master knows we're running
35028
35029 @@ -55,7 +59,7 @@ ENTRY(trampoline_start)
35030 movw $1, %dx # protected mode (PE) bit
35031 lmsw %dx # into protected mode
35032
35033 - ljmpl $__BOOT_CS, $pa_startup_32
35034 + ljmpl *(trampoline_header)
35035
35036 .section ".text32","ax"
35037 .code32
35038 @@ -66,7 +70,7 @@ ENTRY(startup_32) # note: also used from wakeup_asm.S
35039 .balign 8
35040 GLOBAL(trampoline_header)
35041 tr_start: .space 4
35042 - tr_gdt_pad: .space 2
35043 + tr_boot_cs: .space 2
35044 tr_gdt: .space 6
35045 END(trampoline_header)
35046
35047 diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
35048 index dac7b20..72dbaca 100644
35049 --- a/arch/x86/realmode/rm/trampoline_64.S
35050 +++ b/arch/x86/realmode/rm/trampoline_64.S
35051 @@ -93,6 +93,7 @@ ENTRY(startup_32)
35052 movl %edx, %gs
35053
35054 movl pa_tr_cr4, %eax
35055 + andl $~X86_CR4_PCIDE, %eax
35056 movl %eax, %cr4 # Enable PAE mode
35057
35058 # Setup trampoline 4 level pagetables
35059 @@ -106,7 +107,7 @@ ENTRY(startup_32)
35060 wrmsr
35061
35062 # Enable paging and in turn activate Long Mode
35063 - movl $(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
35064 + movl $(X86_CR0_PG | X86_CR0_PE), %eax
35065 movl %eax, %cr0
35066
35067 /*
35068 diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
35069 index 9e7e147..25a4158 100644
35070 --- a/arch/x86/realmode/rm/wakeup_asm.S
35071 +++ b/arch/x86/realmode/rm/wakeup_asm.S
35072 @@ -126,11 +126,10 @@ ENTRY(wakeup_start)
35073 lgdtl pmode_gdt
35074
35075 /* This really couldn't... */
35076 - movl pmode_entry, %eax
35077 movl pmode_cr0, %ecx
35078 movl %ecx, %cr0
35079 - ljmpl $__KERNEL_CS, $pa_startup_32
35080 - /* -> jmp *%eax in trampoline_32.S */
35081 +
35082 + ljmpl *pmode_entry
35083 #else
35084 jmp trampoline_start
35085 #endif
35086 diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
35087 index 604a37e..e49702a 100644
35088 --- a/arch/x86/tools/Makefile
35089 +++ b/arch/x86/tools/Makefile
35090 @@ -37,7 +37,7 @@ $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/in
35091
35092 $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
35093
35094 -HOST_EXTRACFLAGS += -I$(srctree)/tools/include
35095 +HOST_EXTRACFLAGS += -I$(srctree)/tools/include -ggdb
35096 hostprogs-y += relocs
35097 relocs-objs := relocs_32.o relocs_64.o relocs_common.o
35098 PHONY += relocs
35099 diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
35100 index bbb1d22..e505211 100644
35101 --- a/arch/x86/tools/relocs.c
35102 +++ b/arch/x86/tools/relocs.c
35103 @@ -1,5 +1,7 @@
35104 /* This is included from relocs_32/64.c */
35105
35106 +#include "../../../include/generated/autoconf.h"
35107 +
35108 #define ElfW(type) _ElfW(ELF_BITS, type)
35109 #define _ElfW(bits, type) __ElfW(bits, type)
35110 #define __ElfW(bits, type) Elf##bits##_##type
35111 @@ -11,6 +13,7 @@
35112 #define Elf_Sym ElfW(Sym)
35113
35114 static Elf_Ehdr ehdr;
35115 +static Elf_Phdr *phdr;
35116
35117 struct relocs {
35118 uint32_t *offset;
35119 @@ -383,9 +386,39 @@ static void read_ehdr(FILE *fp)
35120 }
35121 }
35122
35123 +static void read_phdrs(FILE *fp)
35124 +{
35125 + unsigned int i;
35126 +
35127 + phdr = calloc(ehdr.e_phnum, sizeof(Elf_Phdr));
35128 + if (!phdr) {
35129 + die("Unable to allocate %d program headers\n",
35130 + ehdr.e_phnum);
35131 + }
35132 + if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
35133 + die("Seek to %d failed: %s\n",
35134 + ehdr.e_phoff, strerror(errno));
35135 + }
35136 + if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
35137 + die("Cannot read ELF program headers: %s\n",
35138 + strerror(errno));
35139 + }
35140 + for(i = 0; i < ehdr.e_phnum; i++) {
35141 + phdr[i].p_type = elf_word_to_cpu(phdr[i].p_type);
35142 + phdr[i].p_offset = elf_off_to_cpu(phdr[i].p_offset);
35143 + phdr[i].p_vaddr = elf_addr_to_cpu(phdr[i].p_vaddr);
35144 + phdr[i].p_paddr = elf_addr_to_cpu(phdr[i].p_paddr);
35145 + phdr[i].p_filesz = elf_word_to_cpu(phdr[i].p_filesz);
35146 + phdr[i].p_memsz = elf_word_to_cpu(phdr[i].p_memsz);
35147 + phdr[i].p_flags = elf_word_to_cpu(phdr[i].p_flags);
35148 + phdr[i].p_align = elf_word_to_cpu(phdr[i].p_align);
35149 + }
35150 +
35151 +}
35152 +
35153 static void read_shdrs(FILE *fp)
35154 {
35155 - int i;
35156 + unsigned int i;
35157 Elf_Shdr shdr;
35158
35159 secs = calloc(ehdr.e_shnum, sizeof(struct section));
35160 @@ -420,7 +453,7 @@ static void read_shdrs(FILE *fp)
35161
35162 static void read_strtabs(FILE *fp)
35163 {
35164 - int i;
35165 + unsigned int i;
35166 for (i = 0; i < ehdr.e_shnum; i++) {
35167 struct section *sec = &secs[i];
35168 if (sec->shdr.sh_type != SHT_STRTAB) {
35169 @@ -445,7 +478,7 @@ static void read_strtabs(FILE *fp)
35170
35171 static void read_symtabs(FILE *fp)
35172 {
35173 - int i,j;
35174 + unsigned int i,j;
35175 for (i = 0; i < ehdr.e_shnum; i++) {
35176 struct section *sec = &secs[i];
35177 if (sec->shdr.sh_type != SHT_SYMTAB) {
35178 @@ -476,9 +509,11 @@ static void read_symtabs(FILE *fp)
35179 }
35180
35181
35182 -static void read_relocs(FILE *fp)
35183 +static void read_relocs(FILE *fp, int use_real_mode)
35184 {
35185 - int i,j;
35186 + unsigned int i,j;
35187 + uint32_t base;
35188 +
35189 for (i = 0; i < ehdr.e_shnum; i++) {
35190 struct section *sec = &secs[i];
35191 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35192 @@ -498,9 +533,22 @@ static void read_relocs(FILE *fp)
35193 die("Cannot read symbol table: %s\n",
35194 strerror(errno));
35195 }
35196 + base = 0;
35197 +
35198 +#ifdef CONFIG_X86_32
35199 + for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
35200 + if (phdr[j].p_type != PT_LOAD )
35201 + continue;
35202 + if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
35203 + continue;
35204 + base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
35205 + break;
35206 + }
35207 +#endif
35208 +
35209 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
35210 Elf_Rel *rel = &sec->reltab[j];
35211 - rel->r_offset = elf_addr_to_cpu(rel->r_offset);
35212 + rel->r_offset = elf_addr_to_cpu(rel->r_offset) + base;
35213 rel->r_info = elf_xword_to_cpu(rel->r_info);
35214 #if (SHT_REL_TYPE == SHT_RELA)
35215 rel->r_addend = elf_xword_to_cpu(rel->r_addend);
35216 @@ -512,7 +560,7 @@ static void read_relocs(FILE *fp)
35217
35218 static void print_absolute_symbols(void)
35219 {
35220 - int i;
35221 + unsigned int i;
35222 const char *format;
35223
35224 if (ELF_BITS == 64)
35225 @@ -525,7 +573,7 @@ static void print_absolute_symbols(void)
35226 for (i = 0; i < ehdr.e_shnum; i++) {
35227 struct section *sec = &secs[i];
35228 char *sym_strtab;
35229 - int j;
35230 + unsigned int j;
35231
35232 if (sec->shdr.sh_type != SHT_SYMTAB) {
35233 continue;
35234 @@ -552,7 +600,7 @@ static void print_absolute_symbols(void)
35235
35236 static void print_absolute_relocs(void)
35237 {
35238 - int i, printed = 0;
35239 + unsigned int i, printed = 0;
35240 const char *format;
35241
35242 if (ELF_BITS == 64)
35243 @@ -565,7 +613,7 @@ static void print_absolute_relocs(void)
35244 struct section *sec_applies, *sec_symtab;
35245 char *sym_strtab;
35246 Elf_Sym *sh_symtab;
35247 - int j;
35248 + unsigned int j;
35249 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35250 continue;
35251 }
35252 @@ -642,13 +690,13 @@ static void add_reloc(struct relocs *r, uint32_t offset)
35253 static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
35254 Elf_Sym *sym, const char *symname))
35255 {
35256 - int i;
35257 + unsigned int i;
35258 /* Walk through the relocations */
35259 for (i = 0; i < ehdr.e_shnum; i++) {
35260 char *sym_strtab;
35261 Elf_Sym *sh_symtab;
35262 struct section *sec_applies, *sec_symtab;
35263 - int j;
35264 + unsigned int j;
35265 struct section *sec = &secs[i];
35266
35267 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35268 @@ -822,6 +870,23 @@ static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35269 {
35270 unsigned r_type = ELF32_R_TYPE(rel->r_info);
35271 int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
35272 + char *sym_strtab = sec->link->link->strtab;
35273 +
35274 + /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
35275 + if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
35276 + return 0;
35277 +
35278 +#ifdef CONFIG_PAX_KERNEXEC
35279 + /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
35280 + if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
35281 + return 0;
35282 + if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
35283 + return 0;
35284 + if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
35285 + return 0;
35286 + if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
35287 + return 0;
35288 +#endif
35289
35290 switch (r_type) {
35291 case R_386_NONE:
35292 @@ -960,7 +1025,7 @@ static int write32_as_text(uint32_t v, FILE *f)
35293
35294 static void emit_relocs(int as_text, int use_real_mode)
35295 {
35296 - int i;
35297 + unsigned int i;
35298 int (*write_reloc)(uint32_t, FILE *) = write32;
35299 int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35300 const char *symname);
35301 @@ -1060,10 +1125,11 @@ void process(FILE *fp, int use_real_mode, int as_text,
35302 {
35303 regex_init(use_real_mode);
35304 read_ehdr(fp);
35305 + read_phdrs(fp);
35306 read_shdrs(fp);
35307 read_strtabs(fp);
35308 read_symtabs(fp);
35309 - read_relocs(fp);
35310 + read_relocs(fp, use_real_mode);
35311 if (ELF_BITS == 64)
35312 percpu_init();
35313 if (show_absolute_syms) {
35314 diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c
35315 index f40281e..92728c9 100644
35316 --- a/arch/x86/um/mem_32.c
35317 +++ b/arch/x86/um/mem_32.c
35318 @@ -21,7 +21,7 @@ static int __init gate_vma_init(void)
35319 gate_vma.vm_start = FIXADDR_USER_START;
35320 gate_vma.vm_end = FIXADDR_USER_END;
35321 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
35322 - gate_vma.vm_page_prot = __P101;
35323 + gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
35324
35325 return 0;
35326 }
35327 diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
35328 index 80ffa5b..a33bd15 100644
35329 --- a/arch/x86/um/tls_32.c
35330 +++ b/arch/x86/um/tls_32.c
35331 @@ -260,7 +260,7 @@ out:
35332 if (unlikely(task == current &&
35333 !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
35334 printk(KERN_ERR "get_tls_entry: task with pid %d got here "
35335 - "without flushed TLS.", current->pid);
35336 + "without flushed TLS.", task_pid_nr(current));
35337 }
35338
35339 return 0;
35340 diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
35341 index c580d12..0a0ba35 100644
35342 --- a/arch/x86/vdso/Makefile
35343 +++ b/arch/x86/vdso/Makefile
35344 @@ -196,7 +196,7 @@ quiet_cmd_vdso = VDSO $@
35345 -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
35346 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
35347
35348 -VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35349 +VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35350 $(LTO_CFLAGS)
35351 GCOV_PROFILE := n
35352
35353 diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
35354 index 310c5f0..766d0a7 100644
35355 --- a/arch/x86/vdso/vdso32-setup.c
35356 +++ b/arch/x86/vdso/vdso32-setup.c
35357 @@ -29,6 +29,7 @@
35358 #include <asm/fixmap.h>
35359 #include <asm/hpet.h>
35360 #include <asm/vvar.h>
35361 +#include <asm/mman.h>
35362
35363 #ifdef CONFIG_COMPAT_VDSO
35364 #define VDSO_DEFAULT 0
35365 @@ -99,7 +100,7 @@ void syscall32_cpu_init(void)
35366 void enable_sep_cpu(void)
35367 {
35368 int cpu = get_cpu();
35369 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
35370 + struct tss_struct *tss = init_tss + cpu;
35371
35372 if (!boot_cpu_has(X86_FEATURE_SEP)) {
35373 put_cpu();
35374 @@ -167,7 +168,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35375
35376 down_write(&mm->mmap_sem);
35377
35378 - addr = get_unmapped_area(NULL, 0, vdso32_size + VDSO_OFFSET(VDSO_PREV_PAGES), 0, 0);
35379 + addr = get_unmapped_area(NULL, 0, vdso32_size + VDSO_OFFSET(VDSO_PREV_PAGES), 0, MAP_EXECUTABLE);
35380 if (IS_ERR_VALUE(addr)) {
35381 ret = addr;
35382 goto up_fail;
35383 @@ -175,7 +176,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35384
35385 addr += VDSO_OFFSET(VDSO_PREV_PAGES);
35386
35387 - current->mm->context.vdso = (void *)addr;
35388 + current->mm->context.vdso = addr;
35389
35390 /*
35391 * MAYWRITE to allow gdb to COW and set breakpoints
35392 @@ -224,11 +225,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35393 #endif
35394
35395 current_thread_info()->sysenter_return =
35396 - VDSO32_SYMBOL(addr, SYSENTER_RETURN);
35397 + (void __force_user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN);
35398
35399 up_fail:
35400 if (ret)
35401 - current->mm->context.vdso = NULL;
35402 + current->mm->context.vdso = 0;
35403
35404 up_write(&mm->mmap_sem);
35405
35406 @@ -282,8 +283,14 @@ __initcall(ia32_binfmt_init);
35407
35408 const char *arch_vma_name(struct vm_area_struct *vma)
35409 {
35410 - if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
35411 + if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
35412 return "[vdso]";
35413 +
35414 +#ifdef CONFIG_PAX_SEGMEXEC
35415 + if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
35416 + return "[vdso]";
35417 +#endif
35418 +
35419 return NULL;
35420 }
35421
35422 diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
35423 index 1ad1026..1a08abe 100644
35424 --- a/arch/x86/vdso/vma.c
35425 +++ b/arch/x86/vdso/vma.c
35426 @@ -17,8 +17,6 @@
35427 #include <asm/page.h>
35428
35429 #if defined(CONFIG_X86_64)
35430 -unsigned int __read_mostly vdso_enabled = 1;
35431 -
35432 DECLARE_VDSO_IMAGE(vdso);
35433 extern unsigned short vdso_sync_cpuid;
35434 static unsigned vdso_size;
35435 @@ -144,7 +142,6 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
35436 * unaligned here as a result of stack start randomization.
35437 */
35438 addr = PAGE_ALIGN(addr);
35439 - addr = align_vdso_addr(addr);
35440
35441 return addr;
35442 }
35443 @@ -157,30 +154,31 @@ static int setup_additional_pages(struct linux_binprm *bprm,
35444 unsigned size)
35445 {
35446 struct mm_struct *mm = current->mm;
35447 - unsigned long addr;
35448 + unsigned long addr = 0;
35449 int ret;
35450
35451 - if (!vdso_enabled)
35452 - return 0;
35453 -
35454 down_write(&mm->mmap_sem);
35455 +
35456 +#ifdef CONFIG_PAX_RANDMMAP
35457 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
35458 +#endif
35459 +
35460 addr = vdso_addr(mm->start_stack, size);
35461 + addr = align_vdso_addr(addr);
35462 addr = get_unmapped_area(NULL, addr, size, 0, 0);
35463 if (IS_ERR_VALUE(addr)) {
35464 ret = addr;
35465 goto up_fail;
35466 }
35467
35468 - current->mm->context.vdso = (void *)addr;
35469 + mm->context.vdso = addr;
35470
35471 ret = install_special_mapping(mm, addr, size,
35472 VM_READ|VM_EXEC|
35473 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
35474 pages);
35475 - if (ret) {
35476 - current->mm->context.vdso = NULL;
35477 - goto up_fail;
35478 - }
35479 + if (ret)
35480 + mm->context.vdso = 0;
35481
35482 up_fail:
35483 up_write(&mm->mmap_sem);
35484 @@ -200,11 +198,4 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35485 vdsox32_size);
35486 }
35487 #endif
35488 -
35489 -static __init int vdso_setup(char *s)
35490 -{
35491 - vdso_enabled = simple_strtoul(s, NULL, 0);
35492 - return 0;
35493 -}
35494 -__setup("vdso=", vdso_setup);
35495 #endif
35496 diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
35497 index e88fda8..76ce7ce 100644
35498 --- a/arch/x86/xen/Kconfig
35499 +++ b/arch/x86/xen/Kconfig
35500 @@ -9,6 +9,7 @@ config XEN
35501 select XEN_HAVE_PVMMU
35502 depends on X86_64 || (X86_32 && X86_PAE)
35503 depends on X86_TSC
35504 + depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_XEN
35505 help
35506 This is the Linux Xen port. Enabling this will allow the
35507 kernel to boot in a paravirtualized environment under the
35508 diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
35509 index c34bfc4..e599673 100644
35510 --- a/arch/x86/xen/enlighten.c
35511 +++ b/arch/x86/xen/enlighten.c
35512 @@ -123,8 +123,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
35513
35514 struct shared_info xen_dummy_shared_info;
35515
35516 -void *xen_initial_gdt;
35517 -
35518 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
35519 __read_mostly int xen_have_vector_callback;
35520 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
35521 @@ -542,8 +540,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
35522 {
35523 unsigned long va = dtr->address;
35524 unsigned int size = dtr->size + 1;
35525 - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35526 - unsigned long frames[pages];
35527 + unsigned long frames[65536 / PAGE_SIZE];
35528 int f;
35529
35530 /*
35531 @@ -591,8 +588,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35532 {
35533 unsigned long va = dtr->address;
35534 unsigned int size = dtr->size + 1;
35535 - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35536 - unsigned long frames[pages];
35537 + unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
35538 int f;
35539
35540 /*
35541 @@ -600,7 +596,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35542 * 8-byte entries, or 16 4k pages..
35543 */
35544
35545 - BUG_ON(size > 65536);
35546 + BUG_ON(size > GDT_SIZE);
35547 BUG_ON(va & ~PAGE_MASK);
35548
35549 for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
35550 @@ -989,7 +985,7 @@ static u32 xen_safe_apic_wait_icr_idle(void)
35551 return 0;
35552 }
35553
35554 -static void set_xen_basic_apic_ops(void)
35555 +static void __init set_xen_basic_apic_ops(void)
35556 {
35557 apic->read = xen_apic_read;
35558 apic->write = xen_apic_write;
35559 @@ -1295,30 +1291,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
35560 #endif
35561 };
35562
35563 -static void xen_reboot(int reason)
35564 +static __noreturn void xen_reboot(int reason)
35565 {
35566 struct sched_shutdown r = { .reason = reason };
35567
35568 - if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
35569 - BUG();
35570 + HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
35571 + BUG();
35572 }
35573
35574 -static void xen_restart(char *msg)
35575 +static __noreturn void xen_restart(char *msg)
35576 {
35577 xen_reboot(SHUTDOWN_reboot);
35578 }
35579
35580 -static void xen_emergency_restart(void)
35581 +static __noreturn void xen_emergency_restart(void)
35582 {
35583 xen_reboot(SHUTDOWN_reboot);
35584 }
35585
35586 -static void xen_machine_halt(void)
35587 +static __noreturn void xen_machine_halt(void)
35588 {
35589 xen_reboot(SHUTDOWN_poweroff);
35590 }
35591
35592 -static void xen_machine_power_off(void)
35593 +static __noreturn void xen_machine_power_off(void)
35594 {
35595 if (pm_power_off)
35596 pm_power_off();
35597 @@ -1564,7 +1560,17 @@ asmlinkage __visible void __init xen_start_kernel(void)
35598 __userpte_alloc_gfp &= ~__GFP_HIGHMEM;
35599
35600 /* Work out if we support NX */
35601 - x86_configure_nx();
35602 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
35603 + if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
35604 + (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
35605 + unsigned l, h;
35606 +
35607 + __supported_pte_mask |= _PAGE_NX;
35608 + rdmsr(MSR_EFER, l, h);
35609 + l |= EFER_NX;
35610 + wrmsr(MSR_EFER, l, h);
35611 + }
35612 +#endif
35613
35614 /* Get mfn list */
35615 xen_build_dynamic_phys_to_machine();
35616 @@ -1592,13 +1598,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
35617
35618 machine_ops = xen_machine_ops;
35619
35620 - /*
35621 - * The only reliable way to retain the initial address of the
35622 - * percpu gdt_page is to remember it here, so we can go and
35623 - * mark it RW later, when the initial percpu area is freed.
35624 - */
35625 - xen_initial_gdt = &per_cpu(gdt_page, 0);
35626 -
35627 xen_smp_init();
35628
35629 #ifdef CONFIG_ACPI_NUMA
35630 diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
35631 index 86e02ea..e3705ca 100644
35632 --- a/arch/x86/xen/mmu.c
35633 +++ b/arch/x86/xen/mmu.c
35634 @@ -379,7 +379,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
35635 return val;
35636 }
35637
35638 -static pteval_t pte_pfn_to_mfn(pteval_t val)
35639 +static pteval_t __intentional_overflow(-1) pte_pfn_to_mfn(pteval_t val)
35640 {
35641 if (val & _PAGE_PRESENT) {
35642 unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
35643 @@ -1904,6 +1904,9 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35644 /* L3_k[510] -> level2_kernel_pgt
35645 * L3_i[511] -> level2_fixmap_pgt */
35646 convert_pfn_mfn(level3_kernel_pgt);
35647 + convert_pfn_mfn(level3_vmalloc_start_pgt);
35648 + convert_pfn_mfn(level3_vmalloc_end_pgt);
35649 + convert_pfn_mfn(level3_vmemmap_pgt);
35650 }
35651 /* We get [511][511] and have Xen's version of level2_kernel_pgt */
35652 l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
35653 @@ -1933,8 +1936,12 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35654 set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
35655 set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
35656 set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
35657 + set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
35658 + set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
35659 + set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
35660 set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
35661 set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
35662 + set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
35663 set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
35664 set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
35665
35666 @@ -2122,6 +2129,7 @@ static void __init xen_post_allocator_init(void)
35667 pv_mmu_ops.set_pud = xen_set_pud;
35668 #if PAGETABLE_LEVELS == 4
35669 pv_mmu_ops.set_pgd = xen_set_pgd;
35670 + pv_mmu_ops.set_pgd_batched = xen_set_pgd;
35671 #endif
35672
35673 /* This will work as long as patching hasn't happened yet
35674 @@ -2200,6 +2208,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
35675 .pud_val = PV_CALLEE_SAVE(xen_pud_val),
35676 .make_pud = PV_CALLEE_SAVE(xen_make_pud),
35677 .set_pgd = xen_set_pgd_hyper,
35678 + .set_pgd_batched = xen_set_pgd_hyper,
35679
35680 .alloc_pud = xen_alloc_pmd_init,
35681 .release_pud = xen_release_pmd_init,
35682 diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
35683 index 7005974..54fb05f 100644
35684 --- a/arch/x86/xen/smp.c
35685 +++ b/arch/x86/xen/smp.c
35686 @@ -283,17 +283,13 @@ static void __init xen_smp_prepare_boot_cpu(void)
35687
35688 if (xen_pv_domain()) {
35689 if (!xen_feature(XENFEAT_writable_page_tables))
35690 - /* We've switched to the "real" per-cpu gdt, so make
35691 - * sure the old memory can be recycled. */
35692 - make_lowmem_page_readwrite(xen_initial_gdt);
35693 -
35694 #ifdef CONFIG_X86_32
35695 /*
35696 * Xen starts us with XEN_FLAT_RING1_DS, but linux code
35697 * expects __USER_DS
35698 */
35699 - loadsegment(ds, __USER_DS);
35700 - loadsegment(es, __USER_DS);
35701 + loadsegment(ds, __KERNEL_DS);
35702 + loadsegment(es, __KERNEL_DS);
35703 #endif
35704
35705 xen_filter_cpu_maps();
35706 @@ -372,7 +368,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
35707 #ifdef CONFIG_X86_32
35708 /* Note: PVH is not yet supported on x86_32. */
35709 ctxt->user_regs.fs = __KERNEL_PERCPU;
35710 - ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
35711 + savesegment(gs, ctxt->user_regs.gs);
35712 #endif
35713 ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
35714
35715 @@ -381,8 +377,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
35716 if (!xen_feature(XENFEAT_auto_translated_physmap)) {
35717 ctxt->flags = VGCF_IN_KERNEL;
35718 ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
35719 - ctxt->user_regs.ds = __USER_DS;
35720 - ctxt->user_regs.es = __USER_DS;
35721 + ctxt->user_regs.ds = __KERNEL_DS;
35722 + ctxt->user_regs.es = __KERNEL_DS;
35723 ctxt->user_regs.ss = __KERNEL_DS;
35724
35725 xen_copy_trap_info(ctxt->trap_ctxt);
35726 @@ -437,14 +433,13 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
35727 int rc;
35728
35729 per_cpu(current_task, cpu) = idle;
35730 + per_cpu(current_tinfo, cpu) = &idle->tinfo;
35731 #ifdef CONFIG_X86_32
35732 irq_ctx_init(cpu);
35733 #else
35734 clear_tsk_thread_flag(idle, TIF_FORK);
35735 #endif
35736 - per_cpu(kernel_stack, cpu) =
35737 - (unsigned long)task_stack_page(idle) -
35738 - KERNEL_STACK_OFFSET + THREAD_SIZE;
35739 + per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
35740
35741 xen_setup_runstate_info(cpu);
35742 xen_setup_timer(cpu);
35743 @@ -720,7 +715,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
35744
35745 void __init xen_smp_init(void)
35746 {
35747 - smp_ops = xen_smp_ops;
35748 + memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
35749 xen_fill_possible_map();
35750 }
35751
35752 diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
35753 index fd92a64..1f72641 100644
35754 --- a/arch/x86/xen/xen-asm_32.S
35755 +++ b/arch/x86/xen/xen-asm_32.S
35756 @@ -99,7 +99,7 @@ ENTRY(xen_iret)
35757 pushw %fs
35758 movl $(__KERNEL_PERCPU), %eax
35759 movl %eax, %fs
35760 - movl %fs:xen_vcpu, %eax
35761 + mov PER_CPU_VAR(xen_vcpu), %eax
35762 POP_FS
35763 #else
35764 movl %ss:xen_vcpu, %eax
35765 diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
35766 index 485b695..fda3e7c 100644
35767 --- a/arch/x86/xen/xen-head.S
35768 +++ b/arch/x86/xen/xen-head.S
35769 @@ -39,6 +39,17 @@ ENTRY(startup_xen)
35770 #ifdef CONFIG_X86_32
35771 mov %esi,xen_start_info
35772 mov $init_thread_union+THREAD_SIZE,%esp
35773 +#ifdef CONFIG_SMP
35774 + movl $cpu_gdt_table,%edi
35775 + movl $__per_cpu_load,%eax
35776 + movw %ax,__KERNEL_PERCPU + 2(%edi)
35777 + rorl $16,%eax
35778 + movb %al,__KERNEL_PERCPU + 4(%edi)
35779 + movb %ah,__KERNEL_PERCPU + 7(%edi)
35780 + movl $__per_cpu_end - 1,%eax
35781 + subl $__per_cpu_start,%eax
35782 + movw %ax,__KERNEL_PERCPU + 0(%edi)
35783 +#endif
35784 #else
35785 mov %rsi,xen_start_info
35786 mov $init_thread_union+THREAD_SIZE,%rsp
35787 diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
35788 index 1cb6f4c..9981524 100644
35789 --- a/arch/x86/xen/xen-ops.h
35790 +++ b/arch/x86/xen/xen-ops.h
35791 @@ -10,8 +10,6 @@
35792 extern const char xen_hypervisor_callback[];
35793 extern const char xen_failsafe_callback[];
35794
35795 -extern void *xen_initial_gdt;
35796 -
35797 struct trap_info;
35798 void xen_copy_trap_info(struct trap_info *traps);
35799
35800 diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
35801 index 525bd3d..ef888b1 100644
35802 --- a/arch/xtensa/variants/dc232b/include/variant/core.h
35803 +++ b/arch/xtensa/variants/dc232b/include/variant/core.h
35804 @@ -119,9 +119,9 @@
35805 ----------------------------------------------------------------------*/
35806
35807 #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
35808 -#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
35809 #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
35810 #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
35811 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
35812
35813 #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
35814 #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
35815 diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
35816 index 2f33760..835e50a 100644
35817 --- a/arch/xtensa/variants/fsf/include/variant/core.h
35818 +++ b/arch/xtensa/variants/fsf/include/variant/core.h
35819 @@ -11,6 +11,7 @@
35820 #ifndef _XTENSA_CORE_H
35821 #define _XTENSA_CORE_H
35822
35823 +#include <linux/const.h>
35824
35825 /****************************************************************************
35826 Parameters Useful for Any Code, USER or PRIVILEGED
35827 @@ -112,9 +113,9 @@
35828 ----------------------------------------------------------------------*/
35829
35830 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
35831 -#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
35832 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
35833 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
35834 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
35835
35836 #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
35837 #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
35838 diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h
35839 index af00795..2bb8105 100644
35840 --- a/arch/xtensa/variants/s6000/include/variant/core.h
35841 +++ b/arch/xtensa/variants/s6000/include/variant/core.h
35842 @@ -11,6 +11,7 @@
35843 #ifndef _XTENSA_CORE_CONFIGURATION_H
35844 #define _XTENSA_CORE_CONFIGURATION_H
35845
35846 +#include <linux/const.h>
35847
35848 /****************************************************************************
35849 Parameters Useful for Any Code, USER or PRIVILEGED
35850 @@ -118,9 +119,9 @@
35851 ----------------------------------------------------------------------*/
35852
35853 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
35854 -#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
35855 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
35856 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
35857 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
35858
35859 #define XCHAL_ICACHE_SIZE 32768 /* I-cache size in bytes or 0 */
35860 #define XCHAL_DCACHE_SIZE 32768 /* D-cache size in bytes or 0 */
35861 diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
35862 index 95ee425..c9c7237 100644
35863 --- a/block/blk-cgroup.c
35864 +++ b/block/blk-cgroup.c
35865 @@ -822,7 +822,7 @@ static void blkcg_css_free(struct cgroup_subsys_state *css)
35866 static struct cgroup_subsys_state *
35867 blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
35868 {
35869 - static atomic64_t id_seq = ATOMIC64_INIT(0);
35870 + static atomic64_unchecked_t id_seq = ATOMIC64_INIT(0);
35871 struct blkcg *blkcg;
35872
35873 if (!parent_css) {
35874 @@ -836,7 +836,7 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
35875
35876 blkcg->cfq_weight = CFQ_WEIGHT_DEFAULT;
35877 blkcg->cfq_leaf_weight = CFQ_WEIGHT_DEFAULT;
35878 - blkcg->id = atomic64_inc_return(&id_seq); /* root is 0, start from 1 */
35879 + blkcg->id = atomic64_inc_return_unchecked(&id_seq); /* root is 0, start from 1 */
35880 done:
35881 spin_lock_init(&blkcg->lock);
35882 INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_ATOMIC);
35883 diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
35884 index c11d24e..e915d24 100644
35885 --- a/block/blk-iopoll.c
35886 +++ b/block/blk-iopoll.c
35887 @@ -74,7 +74,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll)
35888 }
35889 EXPORT_SYMBOL(blk_iopoll_complete);
35890
35891 -static void blk_iopoll_softirq(struct softirq_action *h)
35892 +static __latent_entropy void blk_iopoll_softirq(void)
35893 {
35894 struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
35895 int rearm = 0, budget = blk_iopoll_budget;
35896 diff --git a/block/blk-map.c b/block/blk-map.c
35897 index f7b22bc..ec2ddf4 100644
35898 --- a/block/blk-map.c
35899 +++ b/block/blk-map.c
35900 @@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
35901 if (!len || !kbuf)
35902 return -EINVAL;
35903
35904 - do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
35905 + do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
35906 if (do_copy)
35907 bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
35908 else
35909 diff --git a/block/blk-softirq.c b/block/blk-softirq.c
35910 index 53b1737..08177d2e 100644
35911 --- a/block/blk-softirq.c
35912 +++ b/block/blk-softirq.c
35913 @@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
35914 * Softirq action handler - move entries to local list and loop over them
35915 * while passing them to the queue registered handler.
35916 */
35917 -static void blk_done_softirq(struct softirq_action *h)
35918 +static __latent_entropy void blk_done_softirq(void)
35919 {
35920 struct list_head *cpu_list, local_list;
35921
35922 diff --git a/block/bsg.c b/block/bsg.c
35923 index 420a5a9..23834aa 100644
35924 --- a/block/bsg.c
35925 +++ b/block/bsg.c
35926 @@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
35927 struct sg_io_v4 *hdr, struct bsg_device *bd,
35928 fmode_t has_write_perm)
35929 {
35930 + unsigned char tmpcmd[sizeof(rq->__cmd)];
35931 + unsigned char *cmdptr;
35932 +
35933 if (hdr->request_len > BLK_MAX_CDB) {
35934 rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
35935 if (!rq->cmd)
35936 return -ENOMEM;
35937 - }
35938 + cmdptr = rq->cmd;
35939 + } else
35940 + cmdptr = tmpcmd;
35941
35942 - if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
35943 + if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
35944 hdr->request_len))
35945 return -EFAULT;
35946
35947 + if (cmdptr != rq->cmd)
35948 + memcpy(rq->cmd, cmdptr, hdr->request_len);
35949 +
35950 if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
35951 if (blk_verify_command(rq->cmd, has_write_perm))
35952 return -EPERM;
35953 diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
35954 index fbd5a67..f24fd95 100644
35955 --- a/block/compat_ioctl.c
35956 +++ b/block/compat_ioctl.c
35957 @@ -156,7 +156,7 @@ static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
35958 cgc = compat_alloc_user_space(sizeof(*cgc));
35959 cgc32 = compat_ptr(arg);
35960
35961 - if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
35962 + if (copy_in_user(cgc->cmd, cgc32->cmd, sizeof(cgc->cmd)) ||
35963 get_user(data, &cgc32->buffer) ||
35964 put_user(compat_ptr(data), &cgc->buffer) ||
35965 copy_in_user(&cgc->buflen, &cgc32->buflen,
35966 @@ -341,7 +341,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
35967 err |= __get_user(f->spec1, &uf->spec1);
35968 err |= __get_user(f->fmt_gap, &uf->fmt_gap);
35969 err |= __get_user(name, &uf->name);
35970 - f->name = compat_ptr(name);
35971 + f->name = (void __force_kernel *)compat_ptr(name);
35972 if (err) {
35973 err = -EFAULT;
35974 goto out;
35975 diff --git a/block/genhd.c b/block/genhd.c
35976 index 791f419..89f21c4 100644
35977 --- a/block/genhd.c
35978 +++ b/block/genhd.c
35979 @@ -467,21 +467,24 @@ static char *bdevt_str(dev_t devt, char *buf)
35980
35981 /*
35982 * Register device numbers dev..(dev+range-1)
35983 - * range must be nonzero
35984 + * Noop if @range is zero.
35985 * The hash chain is sorted on range, so that subranges can override.
35986 */
35987 void blk_register_region(dev_t devt, unsigned long range, struct module *module,
35988 struct kobject *(*probe)(dev_t, int *, void *),
35989 int (*lock)(dev_t, void *), void *data)
35990 {
35991 - kobj_map(bdev_map, devt, range, module, probe, lock, data);
35992 + if (range)
35993 + kobj_map(bdev_map, devt, range, module, probe, lock, data);
35994 }
35995
35996 EXPORT_SYMBOL(blk_register_region);
35997
35998 +/* undo blk_register_region(), noop if @range is zero */
35999 void blk_unregister_region(dev_t devt, unsigned long range)
36000 {
36001 - kobj_unmap(bdev_map, devt, range);
36002 + if (range)
36003 + kobj_unmap(bdev_map, devt, range);
36004 }
36005
36006 EXPORT_SYMBOL(blk_unregister_region);
36007 diff --git a/block/partitions/efi.c b/block/partitions/efi.c
36008 index dc51f46..d5446a8 100644
36009 --- a/block/partitions/efi.c
36010 +++ b/block/partitions/efi.c
36011 @@ -293,14 +293,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
36012 if (!gpt)
36013 return NULL;
36014
36015 + if (!le32_to_cpu(gpt->num_partition_entries))
36016 + return NULL;
36017 + pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
36018 + if (!pte)
36019 + return NULL;
36020 +
36021 count = le32_to_cpu(gpt->num_partition_entries) *
36022 le32_to_cpu(gpt->sizeof_partition_entry);
36023 - if (!count)
36024 - return NULL;
36025 - pte = kmalloc(count, GFP_KERNEL);
36026 - if (!pte)
36027 - return NULL;
36028 -
36029 if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
36030 (u8 *) pte, count) < count) {
36031 kfree(pte);
36032 diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
36033 index 2648797..92ed21f 100644
36034 --- a/block/scsi_ioctl.c
36035 +++ b/block/scsi_ioctl.c
36036 @@ -67,7 +67,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
36037 return put_user(0, p);
36038 }
36039
36040 -static int sg_get_timeout(struct request_queue *q)
36041 +static int __intentional_overflow(-1) sg_get_timeout(struct request_queue *q)
36042 {
36043 return jiffies_to_clock_t(q->sg_timeout);
36044 }
36045 @@ -224,8 +224,20 @@ EXPORT_SYMBOL(blk_verify_command);
36046 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
36047 struct sg_io_hdr *hdr, fmode_t mode)
36048 {
36049 - if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
36050 + unsigned char tmpcmd[sizeof(rq->__cmd)];
36051 + unsigned char *cmdptr;
36052 +
36053 + if (rq->cmd != rq->__cmd)
36054 + cmdptr = rq->cmd;
36055 + else
36056 + cmdptr = tmpcmd;
36057 +
36058 + if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
36059 return -EFAULT;
36060 +
36061 + if (cmdptr != rq->cmd)
36062 + memcpy(rq->cmd, cmdptr, hdr->cmd_len);
36063 +
36064 if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
36065 return -EPERM;
36066
36067 @@ -417,6 +429,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36068 int err;
36069 unsigned int in_len, out_len, bytes, opcode, cmdlen;
36070 char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
36071 + unsigned char tmpcmd[sizeof(rq->__cmd)];
36072 + unsigned char *cmdptr;
36073
36074 if (!sic)
36075 return -EINVAL;
36076 @@ -450,9 +464,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36077 */
36078 err = -EFAULT;
36079 rq->cmd_len = cmdlen;
36080 - if (copy_from_user(rq->cmd, sic->data, cmdlen))
36081 +
36082 + if (rq->cmd != rq->__cmd)
36083 + cmdptr = rq->cmd;
36084 + else
36085 + cmdptr = tmpcmd;
36086 +
36087 + if (copy_from_user(cmdptr, sic->data, cmdlen))
36088 goto error;
36089
36090 + if (rq->cmd != cmdptr)
36091 + memcpy(rq->cmd, cmdptr, cmdlen);
36092 +
36093 if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
36094 goto error;
36095
36096 diff --git a/crypto/cryptd.c b/crypto/cryptd.c
36097 index 7bdd61b..afec999 100644
36098 --- a/crypto/cryptd.c
36099 +++ b/crypto/cryptd.c
36100 @@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
36101
36102 struct cryptd_blkcipher_request_ctx {
36103 crypto_completion_t complete;
36104 -};
36105 +} __no_const;
36106
36107 struct cryptd_hash_ctx {
36108 struct crypto_shash *child;
36109 @@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
36110
36111 struct cryptd_aead_request_ctx {
36112 crypto_completion_t complete;
36113 -};
36114 +} __no_const;
36115
36116 static void cryptd_queue_worker(struct work_struct *work);
36117
36118 diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
36119 index 309d345..1632720 100644
36120 --- a/crypto/pcrypt.c
36121 +++ b/crypto/pcrypt.c
36122 @@ -440,7 +440,7 @@ static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
36123 int ret;
36124
36125 pinst->kobj.kset = pcrypt_kset;
36126 - ret = kobject_add(&pinst->kobj, NULL, name);
36127 + ret = kobject_add(&pinst->kobj, NULL, "%s", name);
36128 if (!ret)
36129 kobject_uevent(&pinst->kobj, KOBJ_ADD);
36130
36131 diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
36132 index 6921c7f..78e1af7 100644
36133 --- a/drivers/acpi/acpica/hwxfsleep.c
36134 +++ b/drivers/acpi/acpica/hwxfsleep.c
36135 @@ -63,11 +63,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
36136 /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
36137
36138 static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
36139 - {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36140 - acpi_hw_extended_sleep},
36141 - {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36142 - acpi_hw_extended_wake_prep},
36143 - {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
36144 + {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36145 + .extended_function = acpi_hw_extended_sleep},
36146 + {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36147 + .extended_function = acpi_hw_extended_wake_prep},
36148 + {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
36149 + .extended_function = acpi_hw_extended_wake}
36150 };
36151
36152 /*
36153 diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
36154 index e5bcd91..74f050d 100644
36155 --- a/drivers/acpi/apei/apei-internal.h
36156 +++ b/drivers/acpi/apei/apei-internal.h
36157 @@ -19,7 +19,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
36158 struct apei_exec_ins_type {
36159 u32 flags;
36160 apei_exec_ins_func_t run;
36161 -};
36162 +} __do_const;
36163
36164 struct apei_exec_context {
36165 u32 ip;
36166 diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
36167 index dab7cb7..f0d2994 100644
36168 --- a/drivers/acpi/apei/ghes.c
36169 +++ b/drivers/acpi/apei/ghes.c
36170 @@ -500,7 +500,7 @@ static void __ghes_print_estatus(const char *pfx,
36171 const struct acpi_hest_generic *generic,
36172 const struct acpi_generic_status *estatus)
36173 {
36174 - static atomic_t seqno;
36175 + static atomic_unchecked_t seqno;
36176 unsigned int curr_seqno;
36177 char pfx_seq[64];
36178
36179 @@ -511,7 +511,7 @@ static void __ghes_print_estatus(const char *pfx,
36180 else
36181 pfx = KERN_ERR;
36182 }
36183 - curr_seqno = atomic_inc_return(&seqno);
36184 + curr_seqno = atomic_inc_return_unchecked(&seqno);
36185 snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
36186 printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
36187 pfx_seq, generic->header.source_id);
36188 diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
36189 index a83e3c6..c3d617f 100644
36190 --- a/drivers/acpi/bgrt.c
36191 +++ b/drivers/acpi/bgrt.c
36192 @@ -86,8 +86,10 @@ static int __init bgrt_init(void)
36193 if (!bgrt_image)
36194 return -ENODEV;
36195
36196 - bin_attr_image.private = bgrt_image;
36197 - bin_attr_image.size = bgrt_image_size;
36198 + pax_open_kernel();
36199 + *(void **)&bin_attr_image.private = bgrt_image;
36200 + *(size_t *)&bin_attr_image.size = bgrt_image_size;
36201 + pax_close_kernel();
36202
36203 bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
36204 if (!bgrt_kobj)
36205 diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
36206 index 3d8413d..95f638c 100644
36207 --- a/drivers/acpi/blacklist.c
36208 +++ b/drivers/acpi/blacklist.c
36209 @@ -51,7 +51,7 @@ struct acpi_blacklist_item {
36210 u32 is_critical_error;
36211 };
36212
36213 -static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
36214 +static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
36215
36216 /*
36217 * POLICY: If *anything* doesn't work, put it on the blacklist.
36218 @@ -163,7 +163,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
36219 return 0;
36220 }
36221
36222 -static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
36223 +static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
36224 {
36225 .callback = dmi_disable_osi_vista,
36226 .ident = "Fujitsu Siemens",
36227 diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
36228 index c68e724..e863008 100644
36229 --- a/drivers/acpi/custom_method.c
36230 +++ b/drivers/acpi/custom_method.c
36231 @@ -29,6 +29,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
36232 struct acpi_table_header table;
36233 acpi_status status;
36234
36235 +#ifdef CONFIG_GRKERNSEC_KMEM
36236 + return -EPERM;
36237 +#endif
36238 +
36239 if (!(*ppos)) {
36240 /* parse the table header to get the table length */
36241 if (count <= sizeof(struct acpi_table_header))
36242 diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
36243 index 3dca36d..abaf070 100644
36244 --- a/drivers/acpi/processor_idle.c
36245 +++ b/drivers/acpi/processor_idle.c
36246 @@ -952,7 +952,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
36247 {
36248 int i, count = CPUIDLE_DRIVER_STATE_START;
36249 struct acpi_processor_cx *cx;
36250 - struct cpuidle_state *state;
36251 + cpuidle_state_no_const *state;
36252 struct cpuidle_driver *drv = &acpi_idle_driver;
36253
36254 if (!pr->flags.power_setup_done)
36255 diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
36256 index 38cb978..352c761 100644
36257 --- a/drivers/acpi/sysfs.c
36258 +++ b/drivers/acpi/sysfs.c
36259 @@ -423,11 +423,11 @@ static u32 num_counters;
36260 static struct attribute **all_attrs;
36261 static u32 acpi_gpe_count;
36262
36263 -static struct attribute_group interrupt_stats_attr_group = {
36264 +static attribute_group_no_const interrupt_stats_attr_group = {
36265 .name = "interrupts",
36266 };
36267
36268 -static struct kobj_attribute *counter_attrs;
36269 +static kobj_attribute_no_const *counter_attrs;
36270
36271 static void delete_gpe_attr_array(void)
36272 {
36273 diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
36274 index b986145..82bddb8 100644
36275 --- a/drivers/ata/libahci.c
36276 +++ b/drivers/ata/libahci.c
36277 @@ -1252,7 +1252,7 @@ int ahci_kick_engine(struct ata_port *ap)
36278 }
36279 EXPORT_SYMBOL_GPL(ahci_kick_engine);
36280
36281 -static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36282 +static int __intentional_overflow(-1) ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36283 struct ata_taskfile *tf, int is_cmd, u16 flags,
36284 unsigned long timeout_msec)
36285 {
36286 diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
36287 index 18d97d5..be690af 100644
36288 --- a/drivers/ata/libata-core.c
36289 +++ b/drivers/ata/libata-core.c
36290 @@ -98,7 +98,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
36291 static void ata_dev_xfermask(struct ata_device *dev);
36292 static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
36293
36294 -atomic_t ata_print_id = ATOMIC_INIT(0);
36295 +atomic_unchecked_t ata_print_id = ATOMIC_INIT(0);
36296
36297 struct ata_force_param {
36298 const char *name;
36299 @@ -4858,7 +4858,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
36300 struct ata_port *ap;
36301 unsigned int tag;
36302
36303 - WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36304 + BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36305 ap = qc->ap;
36306
36307 qc->flags = 0;
36308 @@ -4874,7 +4874,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
36309 struct ata_port *ap;
36310 struct ata_link *link;
36311
36312 - WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36313 + BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36314 WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
36315 ap = qc->ap;
36316 link = qc->dev->link;
36317 @@ -5978,6 +5978,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36318 return;
36319
36320 spin_lock(&lock);
36321 + pax_open_kernel();
36322
36323 for (cur = ops->inherits; cur; cur = cur->inherits) {
36324 void **inherit = (void **)cur;
36325 @@ -5991,8 +5992,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36326 if (IS_ERR(*pp))
36327 *pp = NULL;
36328
36329 - ops->inherits = NULL;
36330 + *(struct ata_port_operations **)&ops->inherits = NULL;
36331
36332 + pax_close_kernel();
36333 spin_unlock(&lock);
36334 }
36335
36336 @@ -6185,7 +6187,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
36337
36338 /* give ports names and add SCSI hosts */
36339 for (i = 0; i < host->n_ports; i++) {
36340 - host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
36341 + host->ports[i]->print_id = atomic_inc_return_unchecked(&ata_print_id);
36342 host->ports[i]->local_port_no = i + 1;
36343 }
36344
36345 diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
36346 index ef8567d..8bdbd03 100644
36347 --- a/drivers/ata/libata-scsi.c
36348 +++ b/drivers/ata/libata-scsi.c
36349 @@ -4147,7 +4147,7 @@ int ata_sas_port_init(struct ata_port *ap)
36350
36351 if (rc)
36352 return rc;
36353 - ap->print_id = atomic_inc_return(&ata_print_id);
36354 + ap->print_id = atomic_inc_return_unchecked(&ata_print_id);
36355 return 0;
36356 }
36357 EXPORT_SYMBOL_GPL(ata_sas_port_init);
36358 diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
36359 index 45b5ab3..98446b8 100644
36360 --- a/drivers/ata/libata.h
36361 +++ b/drivers/ata/libata.h
36362 @@ -53,7 +53,7 @@ enum {
36363 ATA_DNXFER_QUIET = (1 << 31),
36364 };
36365
36366 -extern atomic_t ata_print_id;
36367 +extern atomic_unchecked_t ata_print_id;
36368 extern int atapi_passthru16;
36369 extern int libata_fua;
36370 extern int libata_noacpi;
36371 diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
36372 index 4edb1a8..84e1658 100644
36373 --- a/drivers/ata/pata_arasan_cf.c
36374 +++ b/drivers/ata/pata_arasan_cf.c
36375 @@ -865,7 +865,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
36376 /* Handle platform specific quirks */
36377 if (quirk) {
36378 if (quirk & CF_BROKEN_PIO) {
36379 - ap->ops->set_piomode = NULL;
36380 + pax_open_kernel();
36381 + *(void **)&ap->ops->set_piomode = NULL;
36382 + pax_close_kernel();
36383 ap->pio_mask = 0;
36384 }
36385 if (quirk & CF_BROKEN_MWDMA)
36386 diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
36387 index f9b983a..887b9d8 100644
36388 --- a/drivers/atm/adummy.c
36389 +++ b/drivers/atm/adummy.c
36390 @@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
36391 vcc->pop(vcc, skb);
36392 else
36393 dev_kfree_skb_any(skb);
36394 - atomic_inc(&vcc->stats->tx);
36395 + atomic_inc_unchecked(&vcc->stats->tx);
36396
36397 return 0;
36398 }
36399 diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
36400 index f1a9198..f466a4a 100644
36401 --- a/drivers/atm/ambassador.c
36402 +++ b/drivers/atm/ambassador.c
36403 @@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
36404 PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
36405
36406 // VC layer stats
36407 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36408 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36409
36410 // free the descriptor
36411 kfree (tx_descr);
36412 @@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36413 dump_skb ("<<<", vc, skb);
36414
36415 // VC layer stats
36416 - atomic_inc(&atm_vcc->stats->rx);
36417 + atomic_inc_unchecked(&atm_vcc->stats->rx);
36418 __net_timestamp(skb);
36419 // end of our responsibility
36420 atm_vcc->push (atm_vcc, skb);
36421 @@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36422 } else {
36423 PRINTK (KERN_INFO, "dropped over-size frame");
36424 // should we count this?
36425 - atomic_inc(&atm_vcc->stats->rx_drop);
36426 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
36427 }
36428
36429 } else {
36430 @@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
36431 }
36432
36433 if (check_area (skb->data, skb->len)) {
36434 - atomic_inc(&atm_vcc->stats->tx_err);
36435 + atomic_inc_unchecked(&atm_vcc->stats->tx_err);
36436 return -ENOMEM; // ?
36437 }
36438
36439 diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
36440 index 0e3f8f9..765a7a5 100644
36441 --- a/drivers/atm/atmtcp.c
36442 +++ b/drivers/atm/atmtcp.c
36443 @@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36444 if (vcc->pop) vcc->pop(vcc,skb);
36445 else dev_kfree_skb(skb);
36446 if (dev_data) return 0;
36447 - atomic_inc(&vcc->stats->tx_err);
36448 + atomic_inc_unchecked(&vcc->stats->tx_err);
36449 return -ENOLINK;
36450 }
36451 size = skb->len+sizeof(struct atmtcp_hdr);
36452 @@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36453 if (!new_skb) {
36454 if (vcc->pop) vcc->pop(vcc,skb);
36455 else dev_kfree_skb(skb);
36456 - atomic_inc(&vcc->stats->tx_err);
36457 + atomic_inc_unchecked(&vcc->stats->tx_err);
36458 return -ENOBUFS;
36459 }
36460 hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
36461 @@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36462 if (vcc->pop) vcc->pop(vcc,skb);
36463 else dev_kfree_skb(skb);
36464 out_vcc->push(out_vcc,new_skb);
36465 - atomic_inc(&vcc->stats->tx);
36466 - atomic_inc(&out_vcc->stats->rx);
36467 + atomic_inc_unchecked(&vcc->stats->tx);
36468 + atomic_inc_unchecked(&out_vcc->stats->rx);
36469 return 0;
36470 }
36471
36472 @@ -299,7 +299,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36473 out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
36474 read_unlock(&vcc_sklist_lock);
36475 if (!out_vcc) {
36476 - atomic_inc(&vcc->stats->tx_err);
36477 + atomic_inc_unchecked(&vcc->stats->tx_err);
36478 goto done;
36479 }
36480 skb_pull(skb,sizeof(struct atmtcp_hdr));
36481 @@ -311,8 +311,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36482 __net_timestamp(new_skb);
36483 skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
36484 out_vcc->push(out_vcc,new_skb);
36485 - atomic_inc(&vcc->stats->tx);
36486 - atomic_inc(&out_vcc->stats->rx);
36487 + atomic_inc_unchecked(&vcc->stats->tx);
36488 + atomic_inc_unchecked(&out_vcc->stats->rx);
36489 done:
36490 if (vcc->pop) vcc->pop(vcc,skb);
36491 else dev_kfree_skb(skb);
36492 diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
36493 index b1955ba..b179940 100644
36494 --- a/drivers/atm/eni.c
36495 +++ b/drivers/atm/eni.c
36496 @@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc)
36497 DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
36498 vcc->dev->number);
36499 length = 0;
36500 - atomic_inc(&vcc->stats->rx_err);
36501 + atomic_inc_unchecked(&vcc->stats->rx_err);
36502 }
36503 else {
36504 length = ATM_CELL_SIZE-1; /* no HEC */
36505 @@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36506 size);
36507 }
36508 eff = length = 0;
36509 - atomic_inc(&vcc->stats->rx_err);
36510 + atomic_inc_unchecked(&vcc->stats->rx_err);
36511 }
36512 else {
36513 size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
36514 @@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36515 "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
36516 vcc->dev->number,vcc->vci,length,size << 2,descr);
36517 length = eff = 0;
36518 - atomic_inc(&vcc->stats->rx_err);
36519 + atomic_inc_unchecked(&vcc->stats->rx_err);
36520 }
36521 }
36522 skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
36523 @@ -767,7 +767,7 @@ rx_dequeued++;
36524 vcc->push(vcc,skb);
36525 pushed++;
36526 }
36527 - atomic_inc(&vcc->stats->rx);
36528 + atomic_inc_unchecked(&vcc->stats->rx);
36529 }
36530 wake_up(&eni_dev->rx_wait);
36531 }
36532 @@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev)
36533 PCI_DMA_TODEVICE);
36534 if (vcc->pop) vcc->pop(vcc,skb);
36535 else dev_kfree_skb_irq(skb);
36536 - atomic_inc(&vcc->stats->tx);
36537 + atomic_inc_unchecked(&vcc->stats->tx);
36538 wake_up(&eni_dev->tx_wait);
36539 dma_complete++;
36540 }
36541 diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
36542 index 82f2ae0..f205c02 100644
36543 --- a/drivers/atm/firestream.c
36544 +++ b/drivers/atm/firestream.c
36545 @@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
36546 }
36547 }
36548
36549 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36550 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36551
36552 fs_dprintk (FS_DEBUG_TXMEM, "i");
36553 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
36554 @@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
36555 #endif
36556 skb_put (skb, qe->p1 & 0xffff);
36557 ATM_SKB(skb)->vcc = atm_vcc;
36558 - atomic_inc(&atm_vcc->stats->rx);
36559 + atomic_inc_unchecked(&atm_vcc->stats->rx);
36560 __net_timestamp(skb);
36561 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
36562 atm_vcc->push (atm_vcc, skb);
36563 @@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
36564 kfree (pe);
36565 }
36566 if (atm_vcc)
36567 - atomic_inc(&atm_vcc->stats->rx_drop);
36568 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
36569 break;
36570 case 0x1f: /* Reassembly abort: no buffers. */
36571 /* Silently increment error counter. */
36572 if (atm_vcc)
36573 - atomic_inc(&atm_vcc->stats->rx_drop);
36574 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
36575 break;
36576 default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
36577 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
36578 diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
36579 index 204814e..cede831 100644
36580 --- a/drivers/atm/fore200e.c
36581 +++ b/drivers/atm/fore200e.c
36582 @@ -931,9 +931,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
36583 #endif
36584 /* check error condition */
36585 if (*entry->status & STATUS_ERROR)
36586 - atomic_inc(&vcc->stats->tx_err);
36587 + atomic_inc_unchecked(&vcc->stats->tx_err);
36588 else
36589 - atomic_inc(&vcc->stats->tx);
36590 + atomic_inc_unchecked(&vcc->stats->tx);
36591 }
36592 }
36593
36594 @@ -1082,7 +1082,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
36595 if (skb == NULL) {
36596 DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
36597
36598 - atomic_inc(&vcc->stats->rx_drop);
36599 + atomic_inc_unchecked(&vcc->stats->rx_drop);
36600 return -ENOMEM;
36601 }
36602
36603 @@ -1125,14 +1125,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
36604
36605 dev_kfree_skb_any(skb);
36606
36607 - atomic_inc(&vcc->stats->rx_drop);
36608 + atomic_inc_unchecked(&vcc->stats->rx_drop);
36609 return -ENOMEM;
36610 }
36611
36612 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
36613
36614 vcc->push(vcc, skb);
36615 - atomic_inc(&vcc->stats->rx);
36616 + atomic_inc_unchecked(&vcc->stats->rx);
36617
36618 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
36619
36620 @@ -1210,7 +1210,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
36621 DPRINTK(2, "damaged PDU on %d.%d.%d\n",
36622 fore200e->atm_dev->number,
36623 entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
36624 - atomic_inc(&vcc->stats->rx_err);
36625 + atomic_inc_unchecked(&vcc->stats->rx_err);
36626 }
36627 }
36628
36629 @@ -1655,7 +1655,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
36630 goto retry_here;
36631 }
36632
36633 - atomic_inc(&vcc->stats->tx_err);
36634 + atomic_inc_unchecked(&vcc->stats->tx_err);
36635
36636 fore200e->tx_sat++;
36637 DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
36638 diff --git a/drivers/atm/he.c b/drivers/atm/he.c
36639 index aa6be26..f70a785 100644
36640 --- a/drivers/atm/he.c
36641 +++ b/drivers/atm/he.c
36642 @@ -1690,7 +1690,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
36643
36644 if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
36645 hprintk("HBUF_ERR! (cid 0x%x)\n", cid);
36646 - atomic_inc(&vcc->stats->rx_drop);
36647 + atomic_inc_unchecked(&vcc->stats->rx_drop);
36648 goto return_host_buffers;
36649 }
36650
36651 @@ -1717,7 +1717,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
36652 RBRQ_LEN_ERR(he_dev->rbrq_head)
36653 ? "LEN_ERR" : "",
36654 vcc->vpi, vcc->vci);
36655 - atomic_inc(&vcc->stats->rx_err);
36656 + atomic_inc_unchecked(&vcc->stats->rx_err);
36657 goto return_host_buffers;
36658 }
36659
36660 @@ -1769,7 +1769,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
36661 vcc->push(vcc, skb);
36662 spin_lock(&he_dev->global_lock);
36663
36664 - atomic_inc(&vcc->stats->rx);
36665 + atomic_inc_unchecked(&vcc->stats->rx);
36666
36667 return_host_buffers:
36668 ++pdus_assembled;
36669 @@ -2095,7 +2095,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
36670 tpd->vcc->pop(tpd->vcc, tpd->skb);
36671 else
36672 dev_kfree_skb_any(tpd->skb);
36673 - atomic_inc(&tpd->vcc->stats->tx_err);
36674 + atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
36675 }
36676 pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
36677 return;
36678 @@ -2507,7 +2507,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
36679 vcc->pop(vcc, skb);
36680 else
36681 dev_kfree_skb_any(skb);
36682 - atomic_inc(&vcc->stats->tx_err);
36683 + atomic_inc_unchecked(&vcc->stats->tx_err);
36684 return -EINVAL;
36685 }
36686
36687 @@ -2518,7 +2518,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
36688 vcc->pop(vcc, skb);
36689 else
36690 dev_kfree_skb_any(skb);
36691 - atomic_inc(&vcc->stats->tx_err);
36692 + atomic_inc_unchecked(&vcc->stats->tx_err);
36693 return -EINVAL;
36694 }
36695 #endif
36696 @@ -2530,7 +2530,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
36697 vcc->pop(vcc, skb);
36698 else
36699 dev_kfree_skb_any(skb);
36700 - atomic_inc(&vcc->stats->tx_err);
36701 + atomic_inc_unchecked(&vcc->stats->tx_err);
36702 spin_unlock_irqrestore(&he_dev->global_lock, flags);
36703 return -ENOMEM;
36704 }
36705 @@ -2572,7 +2572,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
36706 vcc->pop(vcc, skb);
36707 else
36708 dev_kfree_skb_any(skb);
36709 - atomic_inc(&vcc->stats->tx_err);
36710 + atomic_inc_unchecked(&vcc->stats->tx_err);
36711 spin_unlock_irqrestore(&he_dev->global_lock, flags);
36712 return -ENOMEM;
36713 }
36714 @@ -2603,7 +2603,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
36715 __enqueue_tpd(he_dev, tpd, cid);
36716 spin_unlock_irqrestore(&he_dev->global_lock, flags);
36717
36718 - atomic_inc(&vcc->stats->tx);
36719 + atomic_inc_unchecked(&vcc->stats->tx);
36720
36721 return 0;
36722 }
36723 diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
36724 index 1dc0519..1aadaf7 100644
36725 --- a/drivers/atm/horizon.c
36726 +++ b/drivers/atm/horizon.c
36727 @@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
36728 {
36729 struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
36730 // VC layer stats
36731 - atomic_inc(&vcc->stats->rx);
36732 + atomic_inc_unchecked(&vcc->stats->rx);
36733 __net_timestamp(skb);
36734 // end of our responsibility
36735 vcc->push (vcc, skb);
36736 @@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
36737 dev->tx_iovec = NULL;
36738
36739 // VC layer stats
36740 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36741 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36742
36743 // free the skb
36744 hrz_kfree_skb (skb);
36745 diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
36746 index 1bdf104..9dc44b1 100644
36747 --- a/drivers/atm/idt77252.c
36748 +++ b/drivers/atm/idt77252.c
36749 @@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
36750 else
36751 dev_kfree_skb(skb);
36752
36753 - atomic_inc(&vcc->stats->tx);
36754 + atomic_inc_unchecked(&vcc->stats->tx);
36755 }
36756
36757 atomic_dec(&scq->used);
36758 @@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36759 if ((sb = dev_alloc_skb(64)) == NULL) {
36760 printk("%s: Can't allocate buffers for aal0.\n",
36761 card->name);
36762 - atomic_add(i, &vcc->stats->rx_drop);
36763 + atomic_add_unchecked(i, &vcc->stats->rx_drop);
36764 break;
36765 }
36766 if (!atm_charge(vcc, sb->truesize)) {
36767 RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
36768 card->name);
36769 - atomic_add(i - 1, &vcc->stats->rx_drop);
36770 + atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
36771 dev_kfree_skb(sb);
36772 break;
36773 }
36774 @@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36775 ATM_SKB(sb)->vcc = vcc;
36776 __net_timestamp(sb);
36777 vcc->push(vcc, sb);
36778 - atomic_inc(&vcc->stats->rx);
36779 + atomic_inc_unchecked(&vcc->stats->rx);
36780
36781 cell += ATM_CELL_PAYLOAD;
36782 }
36783 @@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36784 "(CDC: %08x)\n",
36785 card->name, len, rpp->len, readl(SAR_REG_CDC));
36786 recycle_rx_pool_skb(card, rpp);
36787 - atomic_inc(&vcc->stats->rx_err);
36788 + atomic_inc_unchecked(&vcc->stats->rx_err);
36789 return;
36790 }
36791 if (stat & SAR_RSQE_CRC) {
36792 RXPRINTK("%s: AAL5 CRC error.\n", card->name);
36793 recycle_rx_pool_skb(card, rpp);
36794 - atomic_inc(&vcc->stats->rx_err);
36795 + atomic_inc_unchecked(&vcc->stats->rx_err);
36796 return;
36797 }
36798 if (skb_queue_len(&rpp->queue) > 1) {
36799 @@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36800 RXPRINTK("%s: Can't alloc RX skb.\n",
36801 card->name);
36802 recycle_rx_pool_skb(card, rpp);
36803 - atomic_inc(&vcc->stats->rx_err);
36804 + atomic_inc_unchecked(&vcc->stats->rx_err);
36805 return;
36806 }
36807 if (!atm_charge(vcc, skb->truesize)) {
36808 @@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36809 __net_timestamp(skb);
36810
36811 vcc->push(vcc, skb);
36812 - atomic_inc(&vcc->stats->rx);
36813 + atomic_inc_unchecked(&vcc->stats->rx);
36814
36815 return;
36816 }
36817 @@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
36818 __net_timestamp(skb);
36819
36820 vcc->push(vcc, skb);
36821 - atomic_inc(&vcc->stats->rx);
36822 + atomic_inc_unchecked(&vcc->stats->rx);
36823
36824 if (skb->truesize > SAR_FB_SIZE_3)
36825 add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
36826 @@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
36827 if (vcc->qos.aal != ATM_AAL0) {
36828 RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
36829 card->name, vpi, vci);
36830 - atomic_inc(&vcc->stats->rx_drop);
36831 + atomic_inc_unchecked(&vcc->stats->rx_drop);
36832 goto drop;
36833 }
36834
36835 if ((sb = dev_alloc_skb(64)) == NULL) {
36836 printk("%s: Can't allocate buffers for AAL0.\n",
36837 card->name);
36838 - atomic_inc(&vcc->stats->rx_err);
36839 + atomic_inc_unchecked(&vcc->stats->rx_err);
36840 goto drop;
36841 }
36842
36843 @@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
36844 ATM_SKB(sb)->vcc = vcc;
36845 __net_timestamp(sb);
36846 vcc->push(vcc, sb);
36847 - atomic_inc(&vcc->stats->rx);
36848 + atomic_inc_unchecked(&vcc->stats->rx);
36849
36850 drop:
36851 skb_pull(queue, 64);
36852 @@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
36853
36854 if (vc == NULL) {
36855 printk("%s: NULL connection in send().\n", card->name);
36856 - atomic_inc(&vcc->stats->tx_err);
36857 + atomic_inc_unchecked(&vcc->stats->tx_err);
36858 dev_kfree_skb(skb);
36859 return -EINVAL;
36860 }
36861 if (!test_bit(VCF_TX, &vc->flags)) {
36862 printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
36863 - atomic_inc(&vcc->stats->tx_err);
36864 + atomic_inc_unchecked(&vcc->stats->tx_err);
36865 dev_kfree_skb(skb);
36866 return -EINVAL;
36867 }
36868 @@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
36869 break;
36870 default:
36871 printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
36872 - atomic_inc(&vcc->stats->tx_err);
36873 + atomic_inc_unchecked(&vcc->stats->tx_err);
36874 dev_kfree_skb(skb);
36875 return -EINVAL;
36876 }
36877
36878 if (skb_shinfo(skb)->nr_frags != 0) {
36879 printk("%s: No scatter-gather yet.\n", card->name);
36880 - atomic_inc(&vcc->stats->tx_err);
36881 + atomic_inc_unchecked(&vcc->stats->tx_err);
36882 dev_kfree_skb(skb);
36883 return -EINVAL;
36884 }
36885 @@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
36886
36887 err = queue_skb(card, vc, skb, oam);
36888 if (err) {
36889 - atomic_inc(&vcc->stats->tx_err);
36890 + atomic_inc_unchecked(&vcc->stats->tx_err);
36891 dev_kfree_skb(skb);
36892 return err;
36893 }
36894 @@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
36895 skb = dev_alloc_skb(64);
36896 if (!skb) {
36897 printk("%s: Out of memory in send_oam().\n", card->name);
36898 - atomic_inc(&vcc->stats->tx_err);
36899 + atomic_inc_unchecked(&vcc->stats->tx_err);
36900 return -ENOMEM;
36901 }
36902 atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
36903 diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
36904 index 4217f29..88f547a 100644
36905 --- a/drivers/atm/iphase.c
36906 +++ b/drivers/atm/iphase.c
36907 @@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
36908 status = (u_short) (buf_desc_ptr->desc_mode);
36909 if (status & (RX_CER | RX_PTE | RX_OFL))
36910 {
36911 - atomic_inc(&vcc->stats->rx_err);
36912 + atomic_inc_unchecked(&vcc->stats->rx_err);
36913 IF_ERR(printk("IA: bad packet, dropping it");)
36914 if (status & RX_CER) {
36915 IF_ERR(printk(" cause: packet CRC error\n");)
36916 @@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
36917 len = dma_addr - buf_addr;
36918 if (len > iadev->rx_buf_sz) {
36919 printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
36920 - atomic_inc(&vcc->stats->rx_err);
36921 + atomic_inc_unchecked(&vcc->stats->rx_err);
36922 goto out_free_desc;
36923 }
36924
36925 @@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
36926 ia_vcc = INPH_IA_VCC(vcc);
36927 if (ia_vcc == NULL)
36928 {
36929 - atomic_inc(&vcc->stats->rx_err);
36930 + atomic_inc_unchecked(&vcc->stats->rx_err);
36931 atm_return(vcc, skb->truesize);
36932 dev_kfree_skb_any(skb);
36933 goto INCR_DLE;
36934 @@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
36935 if ((length > iadev->rx_buf_sz) || (length >
36936 (skb->len - sizeof(struct cpcs_trailer))))
36937 {
36938 - atomic_inc(&vcc->stats->rx_err);
36939 + atomic_inc_unchecked(&vcc->stats->rx_err);
36940 IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)",
36941 length, skb->len);)
36942 atm_return(vcc, skb->truesize);
36943 @@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
36944
36945 IF_RX(printk("rx_dle_intr: skb push");)
36946 vcc->push(vcc,skb);
36947 - atomic_inc(&vcc->stats->rx);
36948 + atomic_inc_unchecked(&vcc->stats->rx);
36949 iadev->rx_pkt_cnt++;
36950 }
36951 INCR_DLE:
36952 @@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
36953 {
36954 struct k_sonet_stats *stats;
36955 stats = &PRIV(_ia_dev[board])->sonet_stats;
36956 - printk("section_bip: %d\n", atomic_read(&stats->section_bip));
36957 - printk("line_bip : %d\n", atomic_read(&stats->line_bip));
36958 - printk("path_bip : %d\n", atomic_read(&stats->path_bip));
36959 - printk("line_febe : %d\n", atomic_read(&stats->line_febe));
36960 - printk("path_febe : %d\n", atomic_read(&stats->path_febe));
36961 - printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs));
36962 - printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
36963 - printk("tx_cells : %d\n", atomic_read(&stats->tx_cells));
36964 - printk("rx_cells : %d\n", atomic_read(&stats->rx_cells));
36965 + printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
36966 + printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip));
36967 + printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip));
36968 + printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe));
36969 + printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe));
36970 + printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs));
36971 + printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
36972 + printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells));
36973 + printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells));
36974 }
36975 ia_cmds.status = 0;
36976 break;
36977 @@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
36978 if ((desc == 0) || (desc > iadev->num_tx_desc))
36979 {
36980 IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);)
36981 - atomic_inc(&vcc->stats->tx);
36982 + atomic_inc_unchecked(&vcc->stats->tx);
36983 if (vcc->pop)
36984 vcc->pop(vcc, skb);
36985 else
36986 @@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
36987 ATM_DESC(skb) = vcc->vci;
36988 skb_queue_tail(&iadev->tx_dma_q, skb);
36989
36990 - atomic_inc(&vcc->stats->tx);
36991 + atomic_inc_unchecked(&vcc->stats->tx);
36992 iadev->tx_pkt_cnt++;
36993 /* Increment transaction counter */
36994 writel(2, iadev->dma+IPHASE5575_TX_COUNTER);
36995
36996 #if 0
36997 /* add flow control logic */
36998 - if (atomic_read(&vcc->stats->tx) % 20 == 0) {
36999 + if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
37000 if (iavcc->vc_desc_cnt > 10) {
37001 vcc->tx_quota = vcc->tx_quota * 3 / 4;
37002 printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
37003 diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
37004 index fa7d701..1e404c7 100644
37005 --- a/drivers/atm/lanai.c
37006 +++ b/drivers/atm/lanai.c
37007 @@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
37008 vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
37009 lanai_endtx(lanai, lvcc);
37010 lanai_free_skb(lvcc->tx.atmvcc, skb);
37011 - atomic_inc(&lvcc->tx.atmvcc->stats->tx);
37012 + atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
37013 }
37014
37015 /* Try to fill the buffer - don't call unless there is backlog */
37016 @@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
37017 ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
37018 __net_timestamp(skb);
37019 lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
37020 - atomic_inc(&lvcc->rx.atmvcc->stats->rx);
37021 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
37022 out:
37023 lvcc->rx.buf.ptr = end;
37024 cardvcc_write(lvcc, endptr, vcc_rxreadptr);
37025 @@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37026 DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
37027 "vcc %d\n", lanai->number, (unsigned int) s, vci);
37028 lanai->stats.service_rxnotaal5++;
37029 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37030 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37031 return 0;
37032 }
37033 if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
37034 @@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37035 int bytes;
37036 read_unlock(&vcc_sklist_lock);
37037 DPRINTK("got trashed rx pdu on vci %d\n", vci);
37038 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37039 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37040 lvcc->stats.x.aal5.service_trash++;
37041 bytes = (SERVICE_GET_END(s) * 16) -
37042 (((unsigned long) lvcc->rx.buf.ptr) -
37043 @@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37044 }
37045 if (s & SERVICE_STREAM) {
37046 read_unlock(&vcc_sklist_lock);
37047 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37048 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37049 lvcc->stats.x.aal5.service_stream++;
37050 printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
37051 "PDU on VCI %d!\n", lanai->number, vci);
37052 @@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37053 return 0;
37054 }
37055 DPRINTK("got rx crc error on vci %d\n", vci);
37056 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37057 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37058 lvcc->stats.x.aal5.service_rxcrc++;
37059 lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
37060 cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
37061 diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
37062 index 9988ac9..7c52585 100644
37063 --- a/drivers/atm/nicstar.c
37064 +++ b/drivers/atm/nicstar.c
37065 @@ -1640,7 +1640,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37066 if ((vc = (vc_map *) vcc->dev_data) == NULL) {
37067 printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
37068 card->index);
37069 - atomic_inc(&vcc->stats->tx_err);
37070 + atomic_inc_unchecked(&vcc->stats->tx_err);
37071 dev_kfree_skb_any(skb);
37072 return -EINVAL;
37073 }
37074 @@ -1648,7 +1648,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37075 if (!vc->tx) {
37076 printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
37077 card->index);
37078 - atomic_inc(&vcc->stats->tx_err);
37079 + atomic_inc_unchecked(&vcc->stats->tx_err);
37080 dev_kfree_skb_any(skb);
37081 return -EINVAL;
37082 }
37083 @@ -1656,14 +1656,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37084 if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
37085 printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
37086 card->index);
37087 - atomic_inc(&vcc->stats->tx_err);
37088 + atomic_inc_unchecked(&vcc->stats->tx_err);
37089 dev_kfree_skb_any(skb);
37090 return -EINVAL;
37091 }
37092
37093 if (skb_shinfo(skb)->nr_frags != 0) {
37094 printk("nicstar%d: No scatter-gather yet.\n", card->index);
37095 - atomic_inc(&vcc->stats->tx_err);
37096 + atomic_inc_unchecked(&vcc->stats->tx_err);
37097 dev_kfree_skb_any(skb);
37098 return -EINVAL;
37099 }
37100 @@ -1711,11 +1711,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37101 }
37102
37103 if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
37104 - atomic_inc(&vcc->stats->tx_err);
37105 + atomic_inc_unchecked(&vcc->stats->tx_err);
37106 dev_kfree_skb_any(skb);
37107 return -EIO;
37108 }
37109 - atomic_inc(&vcc->stats->tx);
37110 + atomic_inc_unchecked(&vcc->stats->tx);
37111
37112 return 0;
37113 }
37114 @@ -2032,14 +2032,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37115 printk
37116 ("nicstar%d: Can't allocate buffers for aal0.\n",
37117 card->index);
37118 - atomic_add(i, &vcc->stats->rx_drop);
37119 + atomic_add_unchecked(i, &vcc->stats->rx_drop);
37120 break;
37121 }
37122 if (!atm_charge(vcc, sb->truesize)) {
37123 RXPRINTK
37124 ("nicstar%d: atm_charge() dropped aal0 packets.\n",
37125 card->index);
37126 - atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37127 + atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37128 dev_kfree_skb_any(sb);
37129 break;
37130 }
37131 @@ -2054,7 +2054,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37132 ATM_SKB(sb)->vcc = vcc;
37133 __net_timestamp(sb);
37134 vcc->push(vcc, sb);
37135 - atomic_inc(&vcc->stats->rx);
37136 + atomic_inc_unchecked(&vcc->stats->rx);
37137 cell += ATM_CELL_PAYLOAD;
37138 }
37139
37140 @@ -2071,7 +2071,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37141 if (iovb == NULL) {
37142 printk("nicstar%d: Out of iovec buffers.\n",
37143 card->index);
37144 - atomic_inc(&vcc->stats->rx_drop);
37145 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37146 recycle_rx_buf(card, skb);
37147 return;
37148 }
37149 @@ -2095,7 +2095,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37150 small or large buffer itself. */
37151 } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
37152 printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
37153 - atomic_inc(&vcc->stats->rx_err);
37154 + atomic_inc_unchecked(&vcc->stats->rx_err);
37155 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37156 NS_MAX_IOVECS);
37157 NS_PRV_IOVCNT(iovb) = 0;
37158 @@ -2115,7 +2115,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37159 ("nicstar%d: Expected a small buffer, and this is not one.\n",
37160 card->index);
37161 which_list(card, skb);
37162 - atomic_inc(&vcc->stats->rx_err);
37163 + atomic_inc_unchecked(&vcc->stats->rx_err);
37164 recycle_rx_buf(card, skb);
37165 vc->rx_iov = NULL;
37166 recycle_iov_buf(card, iovb);
37167 @@ -2128,7 +2128,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37168 ("nicstar%d: Expected a large buffer, and this is not one.\n",
37169 card->index);
37170 which_list(card, skb);
37171 - atomic_inc(&vcc->stats->rx_err);
37172 + atomic_inc_unchecked(&vcc->stats->rx_err);
37173 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37174 NS_PRV_IOVCNT(iovb));
37175 vc->rx_iov = NULL;
37176 @@ -2151,7 +2151,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37177 printk(" - PDU size mismatch.\n");
37178 else
37179 printk(".\n");
37180 - atomic_inc(&vcc->stats->rx_err);
37181 + atomic_inc_unchecked(&vcc->stats->rx_err);
37182 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37183 NS_PRV_IOVCNT(iovb));
37184 vc->rx_iov = NULL;
37185 @@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37186 /* skb points to a small buffer */
37187 if (!atm_charge(vcc, skb->truesize)) {
37188 push_rxbufs(card, skb);
37189 - atomic_inc(&vcc->stats->rx_drop);
37190 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37191 } else {
37192 skb_put(skb, len);
37193 dequeue_sm_buf(card, skb);
37194 @@ -2175,7 +2175,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37195 ATM_SKB(skb)->vcc = vcc;
37196 __net_timestamp(skb);
37197 vcc->push(vcc, skb);
37198 - atomic_inc(&vcc->stats->rx);
37199 + atomic_inc_unchecked(&vcc->stats->rx);
37200 }
37201 } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */
37202 struct sk_buff *sb;
37203 @@ -2186,7 +2186,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37204 if (len <= NS_SMBUFSIZE) {
37205 if (!atm_charge(vcc, sb->truesize)) {
37206 push_rxbufs(card, sb);
37207 - atomic_inc(&vcc->stats->rx_drop);
37208 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37209 } else {
37210 skb_put(sb, len);
37211 dequeue_sm_buf(card, sb);
37212 @@ -2196,7 +2196,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37213 ATM_SKB(sb)->vcc = vcc;
37214 __net_timestamp(sb);
37215 vcc->push(vcc, sb);
37216 - atomic_inc(&vcc->stats->rx);
37217 + atomic_inc_unchecked(&vcc->stats->rx);
37218 }
37219
37220 push_rxbufs(card, skb);
37221 @@ -2205,7 +2205,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37222
37223 if (!atm_charge(vcc, skb->truesize)) {
37224 push_rxbufs(card, skb);
37225 - atomic_inc(&vcc->stats->rx_drop);
37226 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37227 } else {
37228 dequeue_lg_buf(card, skb);
37229 #ifdef NS_USE_DESTRUCTORS
37230 @@ -2218,7 +2218,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37231 ATM_SKB(skb)->vcc = vcc;
37232 __net_timestamp(skb);
37233 vcc->push(vcc, skb);
37234 - atomic_inc(&vcc->stats->rx);
37235 + atomic_inc_unchecked(&vcc->stats->rx);
37236 }
37237
37238 push_rxbufs(card, sb);
37239 @@ -2239,7 +2239,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37240 printk
37241 ("nicstar%d: Out of huge buffers.\n",
37242 card->index);
37243 - atomic_inc(&vcc->stats->rx_drop);
37244 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37245 recycle_iovec_rx_bufs(card,
37246 (struct iovec *)
37247 iovb->data,
37248 @@ -2290,7 +2290,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37249 card->hbpool.count++;
37250 } else
37251 dev_kfree_skb_any(hb);
37252 - atomic_inc(&vcc->stats->rx_drop);
37253 + atomic_inc_unchecked(&vcc->stats->rx_drop);
37254 } else {
37255 /* Copy the small buffer to the huge buffer */
37256 sb = (struct sk_buff *)iov->iov_base;
37257 @@ -2327,7 +2327,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37258 #endif /* NS_USE_DESTRUCTORS */
37259 __net_timestamp(hb);
37260 vcc->push(vcc, hb);
37261 - atomic_inc(&vcc->stats->rx);
37262 + atomic_inc_unchecked(&vcc->stats->rx);
37263 }
37264 }
37265
37266 diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
37267 index 943cf0d..37d15d5 100644
37268 --- a/drivers/atm/solos-pci.c
37269 +++ b/drivers/atm/solos-pci.c
37270 @@ -838,7 +838,7 @@ static void solos_bh(unsigned long card_arg)
37271 }
37272 atm_charge(vcc, skb->truesize);
37273 vcc->push(vcc, skb);
37274 - atomic_inc(&vcc->stats->rx);
37275 + atomic_inc_unchecked(&vcc->stats->rx);
37276 break;
37277
37278 case PKT_STATUS:
37279 @@ -1116,7 +1116,7 @@ static uint32_t fpga_tx(struct solos_card *card)
37280 vcc = SKB_CB(oldskb)->vcc;
37281
37282 if (vcc) {
37283 - atomic_inc(&vcc->stats->tx);
37284 + atomic_inc_unchecked(&vcc->stats->tx);
37285 solos_pop(vcc, oldskb);
37286 } else {
37287 dev_kfree_skb_irq(oldskb);
37288 diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
37289 index 0215934..ce9f5b1 100644
37290 --- a/drivers/atm/suni.c
37291 +++ b/drivers/atm/suni.c
37292 @@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
37293
37294
37295 #define ADD_LIMITED(s,v) \
37296 - atomic_add((v),&stats->s); \
37297 - if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
37298 + atomic_add_unchecked((v),&stats->s); \
37299 + if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
37300
37301
37302 static void suni_hz(unsigned long from_timer)
37303 diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
37304 index 5120a96..e2572bd 100644
37305 --- a/drivers/atm/uPD98402.c
37306 +++ b/drivers/atm/uPD98402.c
37307 @@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
37308 struct sonet_stats tmp;
37309 int error = 0;
37310
37311 - atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37312 + atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37313 sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
37314 if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
37315 if (zero && !error) {
37316 @@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
37317
37318
37319 #define ADD_LIMITED(s,v) \
37320 - { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
37321 - if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
37322 - atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37323 + { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
37324 + if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
37325 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37326
37327
37328 static void stat_event(struct atm_dev *dev)
37329 @@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
37330 if (reason & uPD98402_INT_PFM) stat_event(dev);
37331 if (reason & uPD98402_INT_PCO) {
37332 (void) GET(PCOCR); /* clear interrupt cause */
37333 - atomic_add(GET(HECCT),
37334 + atomic_add_unchecked(GET(HECCT),
37335 &PRIV(dev)->sonet_stats.uncorr_hcs);
37336 }
37337 if ((reason & uPD98402_INT_RFO) &&
37338 @@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
37339 PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
37340 uPD98402_INT_LOS),PIMR); /* enable them */
37341 (void) fetch_stats(dev,NULL,1); /* clear kernel counters */
37342 - atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37343 - atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
37344 - atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
37345 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37346 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
37347 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
37348 return 0;
37349 }
37350
37351 diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
37352 index 969c3c2..9b72956 100644
37353 --- a/drivers/atm/zatm.c
37354 +++ b/drivers/atm/zatm.c
37355 @@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37356 }
37357 if (!size) {
37358 dev_kfree_skb_irq(skb);
37359 - if (vcc) atomic_inc(&vcc->stats->rx_err);
37360 + if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
37361 continue;
37362 }
37363 if (!atm_charge(vcc,skb->truesize)) {
37364 @@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37365 skb->len = size;
37366 ATM_SKB(skb)->vcc = vcc;
37367 vcc->push(vcc,skb);
37368 - atomic_inc(&vcc->stats->rx);
37369 + atomic_inc_unchecked(&vcc->stats->rx);
37370 }
37371 zout(pos & 0xffff,MTA(mbx));
37372 #if 0 /* probably a stupid idea */
37373 @@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
37374 skb_queue_head(&zatm_vcc->backlog,skb);
37375 break;
37376 }
37377 - atomic_inc(&vcc->stats->tx);
37378 + atomic_inc_unchecked(&vcc->stats->tx);
37379 wake_up(&zatm_vcc->tx_wait);
37380 }
37381
37382 diff --git a/drivers/base/bus.c b/drivers/base/bus.c
37383 index 83e910a..b224a73 100644
37384 --- a/drivers/base/bus.c
37385 +++ b/drivers/base/bus.c
37386 @@ -1124,7 +1124,7 @@ int subsys_interface_register(struct subsys_interface *sif)
37387 return -EINVAL;
37388
37389 mutex_lock(&subsys->p->mutex);
37390 - list_add_tail(&sif->node, &subsys->p->interfaces);
37391 + pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
37392 if (sif->add_dev) {
37393 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37394 while ((dev = subsys_dev_iter_next(&iter)))
37395 @@ -1149,7 +1149,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
37396 subsys = sif->subsys;
37397
37398 mutex_lock(&subsys->p->mutex);
37399 - list_del_init(&sif->node);
37400 + pax_list_del_init((struct list_head *)&sif->node);
37401 if (sif->remove_dev) {
37402 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37403 while ((dev = subsys_dev_iter_next(&iter)))
37404 diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
37405 index 25798db..15f130e 100644
37406 --- a/drivers/base/devtmpfs.c
37407 +++ b/drivers/base/devtmpfs.c
37408 @@ -354,7 +354,7 @@ int devtmpfs_mount(const char *mntdir)
37409 if (!thread)
37410 return 0;
37411
37412 - err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
37413 + err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
37414 if (err)
37415 printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
37416 else
37417 @@ -380,11 +380,11 @@ static int devtmpfsd(void *p)
37418 *err = sys_unshare(CLONE_NEWNS);
37419 if (*err)
37420 goto out;
37421 - *err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
37422 + *err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
37423 if (*err)
37424 goto out;
37425 - sys_chdir("/.."); /* will traverse into overmounted root */
37426 - sys_chroot(".");
37427 + sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
37428 + sys_chroot((char __force_user *)".");
37429 complete(&setup_done);
37430 while (1) {
37431 spin_lock(&req_lock);
37432 diff --git a/drivers/base/node.c b/drivers/base/node.c
37433 index 8f7ed99..700dd0c 100644
37434 --- a/drivers/base/node.c
37435 +++ b/drivers/base/node.c
37436 @@ -624,7 +624,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
37437 struct node_attr {
37438 struct device_attribute attr;
37439 enum node_states state;
37440 -};
37441 +} __do_const;
37442
37443 static ssize_t show_node_state(struct device *dev,
37444 struct device_attribute *attr, char *buf)
37445 diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
37446 index ae098a2..0999830 100644
37447 --- a/drivers/base/power/domain.c
37448 +++ b/drivers/base/power/domain.c
37449 @@ -1821,9 +1821,9 @@ int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
37450
37451 if (dev->power.subsys_data->domain_data) {
37452 gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
37453 - gpd_data->ops = (struct gpd_dev_ops){ NULL };
37454 + memset(&gpd_data->ops, 0, sizeof(gpd_data->ops));
37455 if (clear_td)
37456 - gpd_data->td = (struct gpd_timing_data){ 0 };
37457 + memset(&gpd_data->td, 0, sizeof(gpd_data->td));
37458
37459 if (--gpd_data->refcount == 0) {
37460 dev->power.subsys_data->domain_data = NULL;
37461 @@ -1862,7 +1862,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
37462 {
37463 struct cpuidle_driver *cpuidle_drv;
37464 struct gpd_cpu_data *cpu_data;
37465 - struct cpuidle_state *idle_state;
37466 + cpuidle_state_no_const *idle_state;
37467 int ret = 0;
37468
37469 if (IS_ERR_OR_NULL(genpd) || state < 0)
37470 @@ -1930,7 +1930,7 @@ int pm_genpd_name_attach_cpuidle(const char *name, int state)
37471 int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
37472 {
37473 struct gpd_cpu_data *cpu_data;
37474 - struct cpuidle_state *idle_state;
37475 + cpuidle_state_no_const *idle_state;
37476 int ret = 0;
37477
37478 if (IS_ERR_OR_NULL(genpd))
37479 diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
37480 index 95b181d1..c4f0e19 100644
37481 --- a/drivers/base/power/sysfs.c
37482 +++ b/drivers/base/power/sysfs.c
37483 @@ -185,7 +185,7 @@ static ssize_t rtpm_status_show(struct device *dev,
37484 return -EIO;
37485 }
37486 }
37487 - return sprintf(buf, p);
37488 + return sprintf(buf, "%s", p);
37489 }
37490
37491 static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
37492 diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
37493 index 2d56f41..8830f19 100644
37494 --- a/drivers/base/power/wakeup.c
37495 +++ b/drivers/base/power/wakeup.c
37496 @@ -29,14 +29,14 @@ bool events_check_enabled __read_mostly;
37497 * They need to be modified together atomically, so it's better to use one
37498 * atomic variable to hold them both.
37499 */
37500 -static atomic_t combined_event_count = ATOMIC_INIT(0);
37501 +static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
37502
37503 #define IN_PROGRESS_BITS (sizeof(int) * 4)
37504 #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1)
37505
37506 static void split_counters(unsigned int *cnt, unsigned int *inpr)
37507 {
37508 - unsigned int comb = atomic_read(&combined_event_count);
37509 + unsigned int comb = atomic_read_unchecked(&combined_event_count);
37510
37511 *cnt = (comb >> IN_PROGRESS_BITS);
37512 *inpr = comb & MAX_IN_PROGRESS;
37513 @@ -395,7 +395,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
37514 ws->start_prevent_time = ws->last_time;
37515
37516 /* Increment the counter of events in progress. */
37517 - cec = atomic_inc_return(&combined_event_count);
37518 + cec = atomic_inc_return_unchecked(&combined_event_count);
37519
37520 trace_wakeup_source_activate(ws->name, cec);
37521 }
37522 @@ -521,7 +521,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
37523 * Increment the counter of registered wakeup events and decrement the
37524 * couter of wakeup events in progress simultaneously.
37525 */
37526 - cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
37527 + cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
37528 trace_wakeup_source_deactivate(ws->name, cec);
37529
37530 split_counters(&cnt, &inpr);
37531 diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
37532 index e8d11b6..7b1b36f 100644
37533 --- a/drivers/base/syscore.c
37534 +++ b/drivers/base/syscore.c
37535 @@ -21,7 +21,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
37536 void register_syscore_ops(struct syscore_ops *ops)
37537 {
37538 mutex_lock(&syscore_ops_lock);
37539 - list_add_tail(&ops->node, &syscore_ops_list);
37540 + pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
37541 mutex_unlock(&syscore_ops_lock);
37542 }
37543 EXPORT_SYMBOL_GPL(register_syscore_ops);
37544 @@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
37545 void unregister_syscore_ops(struct syscore_ops *ops)
37546 {
37547 mutex_lock(&syscore_ops_lock);
37548 - list_del(&ops->node);
37549 + pax_list_del((struct list_head *)&ops->node);
37550 mutex_unlock(&syscore_ops_lock);
37551 }
37552 EXPORT_SYMBOL_GPL(unregister_syscore_ops);
37553 diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
37554 index 73894ca..69f64ef 100644
37555 --- a/drivers/block/cciss.c
37556 +++ b/drivers/block/cciss.c
37557 @@ -3011,7 +3011,7 @@ static void start_io(ctlr_info_t *h)
37558 while (!list_empty(&h->reqQ)) {
37559 c = list_entry(h->reqQ.next, CommandList_struct, list);
37560 /* can't do anything if fifo is full */
37561 - if ((h->access.fifo_full(h))) {
37562 + if ((h->access->fifo_full(h))) {
37563 dev_warn(&h->pdev->dev, "fifo full\n");
37564 break;
37565 }
37566 @@ -3021,7 +3021,7 @@ static void start_io(ctlr_info_t *h)
37567 h->Qdepth--;
37568
37569 /* Tell the controller execute command */
37570 - h->access.submit_command(h, c);
37571 + h->access->submit_command(h, c);
37572
37573 /* Put job onto the completed Q */
37574 addQ(&h->cmpQ, c);
37575 @@ -3447,17 +3447,17 @@ startio:
37576
37577 static inline unsigned long get_next_completion(ctlr_info_t *h)
37578 {
37579 - return h->access.command_completed(h);
37580 + return h->access->command_completed(h);
37581 }
37582
37583 static inline int interrupt_pending(ctlr_info_t *h)
37584 {
37585 - return h->access.intr_pending(h);
37586 + return h->access->intr_pending(h);
37587 }
37588
37589 static inline long interrupt_not_for_us(ctlr_info_t *h)
37590 {
37591 - return ((h->access.intr_pending(h) == 0) ||
37592 + return ((h->access->intr_pending(h) == 0) ||
37593 (h->interrupts_enabled == 0));
37594 }
37595
37596 @@ -3490,7 +3490,7 @@ static inline u32 next_command(ctlr_info_t *h)
37597 u32 a;
37598
37599 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
37600 - return h->access.command_completed(h);
37601 + return h->access->command_completed(h);
37602
37603 if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
37604 a = *(h->reply_pool_head); /* Next cmd in ring buffer */
37605 @@ -4047,7 +4047,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
37606 trans_support & CFGTBL_Trans_use_short_tags);
37607
37608 /* Change the access methods to the performant access methods */
37609 - h->access = SA5_performant_access;
37610 + h->access = &SA5_performant_access;
37611 h->transMethod = CFGTBL_Trans_Performant;
37612
37613 return;
37614 @@ -4325,7 +4325,7 @@ static int cciss_pci_init(ctlr_info_t *h)
37615 if (prod_index < 0)
37616 return -ENODEV;
37617 h->product_name = products[prod_index].product_name;
37618 - h->access = *(products[prod_index].access);
37619 + h->access = products[prod_index].access;
37620
37621 if (cciss_board_disabled(h)) {
37622 dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
37623 @@ -5057,7 +5057,7 @@ reinit_after_soft_reset:
37624 }
37625
37626 /* make sure the board interrupts are off */
37627 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
37628 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
37629 rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
37630 if (rc)
37631 goto clean2;
37632 @@ -5107,7 +5107,7 @@ reinit_after_soft_reset:
37633 * fake ones to scoop up any residual completions.
37634 */
37635 spin_lock_irqsave(&h->lock, flags);
37636 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
37637 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
37638 spin_unlock_irqrestore(&h->lock, flags);
37639 free_irq(h->intr[h->intr_mode], h);
37640 rc = cciss_request_irq(h, cciss_msix_discard_completions,
37641 @@ -5127,9 +5127,9 @@ reinit_after_soft_reset:
37642 dev_info(&h->pdev->dev, "Board READY.\n");
37643 dev_info(&h->pdev->dev,
37644 "Waiting for stale completions to drain.\n");
37645 - h->access.set_intr_mask(h, CCISS_INTR_ON);
37646 + h->access->set_intr_mask(h, CCISS_INTR_ON);
37647 msleep(10000);
37648 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
37649 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
37650
37651 rc = controller_reset_failed(h->cfgtable);
37652 if (rc)
37653 @@ -5152,7 +5152,7 @@ reinit_after_soft_reset:
37654 cciss_scsi_setup(h);
37655
37656 /* Turn the interrupts on so we can service requests */
37657 - h->access.set_intr_mask(h, CCISS_INTR_ON);
37658 + h->access->set_intr_mask(h, CCISS_INTR_ON);
37659
37660 /* Get the firmware version */
37661 inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
37662 @@ -5224,7 +5224,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
37663 kfree(flush_buf);
37664 if (return_code != IO_OK)
37665 dev_warn(&h->pdev->dev, "Error flushing cache\n");
37666 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
37667 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
37668 free_irq(h->intr[h->intr_mode], h);
37669 }
37670
37671 diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
37672 index 7fda30e..2f27946 100644
37673 --- a/drivers/block/cciss.h
37674 +++ b/drivers/block/cciss.h
37675 @@ -101,7 +101,7 @@ struct ctlr_info
37676 /* information about each logical volume */
37677 drive_info_struct *drv[CISS_MAX_LUN];
37678
37679 - struct access_method access;
37680 + struct access_method *access;
37681
37682 /* queue and queue Info */
37683 struct list_head reqQ;
37684 @@ -402,27 +402,27 @@ static bool SA5_performant_intr_pending(ctlr_info_t *h)
37685 }
37686
37687 static struct access_method SA5_access = {
37688 - SA5_submit_command,
37689 - SA5_intr_mask,
37690 - SA5_fifo_full,
37691 - SA5_intr_pending,
37692 - SA5_completed,
37693 + .submit_command = SA5_submit_command,
37694 + .set_intr_mask = SA5_intr_mask,
37695 + .fifo_full = SA5_fifo_full,
37696 + .intr_pending = SA5_intr_pending,
37697 + .command_completed = SA5_completed,
37698 };
37699
37700 static struct access_method SA5B_access = {
37701 - SA5_submit_command,
37702 - SA5B_intr_mask,
37703 - SA5_fifo_full,
37704 - SA5B_intr_pending,
37705 - SA5_completed,
37706 + .submit_command = SA5_submit_command,
37707 + .set_intr_mask = SA5B_intr_mask,
37708 + .fifo_full = SA5_fifo_full,
37709 + .intr_pending = SA5B_intr_pending,
37710 + .command_completed = SA5_completed,
37711 };
37712
37713 static struct access_method SA5_performant_access = {
37714 - SA5_submit_command,
37715 - SA5_performant_intr_mask,
37716 - SA5_fifo_full,
37717 - SA5_performant_intr_pending,
37718 - SA5_performant_completed,
37719 + .submit_command = SA5_submit_command,
37720 + .set_intr_mask = SA5_performant_intr_mask,
37721 + .fifo_full = SA5_fifo_full,
37722 + .intr_pending = SA5_performant_intr_pending,
37723 + .command_completed = SA5_performant_completed,
37724 };
37725
37726 struct board_type {
37727 diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
37728 index 2b94403..fd6ad1f 100644
37729 --- a/drivers/block/cpqarray.c
37730 +++ b/drivers/block/cpqarray.c
37731 @@ -404,7 +404,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
37732 if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
37733 goto Enomem4;
37734 }
37735 - hba[i]->access.set_intr_mask(hba[i], 0);
37736 + hba[i]->access->set_intr_mask(hba[i], 0);
37737 if (request_irq(hba[i]->intr, do_ida_intr,
37738 IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
37739 {
37740 @@ -459,7 +459,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
37741 add_timer(&hba[i]->timer);
37742
37743 /* Enable IRQ now that spinlock and rate limit timer are set up */
37744 - hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
37745 + hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
37746
37747 for(j=0; j<NWD; j++) {
37748 struct gendisk *disk = ida_gendisk[i][j];
37749 @@ -694,7 +694,7 @@ DBGINFO(
37750 for(i=0; i<NR_PRODUCTS; i++) {
37751 if (board_id == products[i].board_id) {
37752 c->product_name = products[i].product_name;
37753 - c->access = *(products[i].access);
37754 + c->access = products[i].access;
37755 break;
37756 }
37757 }
37758 @@ -792,7 +792,7 @@ static int cpqarray_eisa_detect(void)
37759 hba[ctlr]->intr = intr;
37760 sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
37761 hba[ctlr]->product_name = products[j].product_name;
37762 - hba[ctlr]->access = *(products[j].access);
37763 + hba[ctlr]->access = products[j].access;
37764 hba[ctlr]->ctlr = ctlr;
37765 hba[ctlr]->board_id = board_id;
37766 hba[ctlr]->pci_dev = NULL; /* not PCI */
37767 @@ -978,7 +978,7 @@ static void start_io(ctlr_info_t *h)
37768
37769 while((c = h->reqQ) != NULL) {
37770 /* Can't do anything if we're busy */
37771 - if (h->access.fifo_full(h) == 0)
37772 + if (h->access->fifo_full(h) == 0)
37773 return;
37774
37775 /* Get the first entry from the request Q */
37776 @@ -986,7 +986,7 @@ static void start_io(ctlr_info_t *h)
37777 h->Qdepth--;
37778
37779 /* Tell the controller to do our bidding */
37780 - h->access.submit_command(h, c);
37781 + h->access->submit_command(h, c);
37782
37783 /* Get onto the completion Q */
37784 addQ(&h->cmpQ, c);
37785 @@ -1048,7 +1048,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
37786 unsigned long flags;
37787 __u32 a,a1;
37788
37789 - istat = h->access.intr_pending(h);
37790 + istat = h->access->intr_pending(h);
37791 /* Is this interrupt for us? */
37792 if (istat == 0)
37793 return IRQ_NONE;
37794 @@ -1059,7 +1059,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
37795 */
37796 spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
37797 if (istat & FIFO_NOT_EMPTY) {
37798 - while((a = h->access.command_completed(h))) {
37799 + while((a = h->access->command_completed(h))) {
37800 a1 = a; a &= ~3;
37801 if ((c = h->cmpQ) == NULL)
37802 {
37803 @@ -1448,11 +1448,11 @@ static int sendcmd(
37804 /*
37805 * Disable interrupt
37806 */
37807 - info_p->access.set_intr_mask(info_p, 0);
37808 + info_p->access->set_intr_mask(info_p, 0);
37809 /* Make sure there is room in the command FIFO */
37810 /* Actually it should be completely empty at this time. */
37811 for (i = 200000; i > 0; i--) {
37812 - temp = info_p->access.fifo_full(info_p);
37813 + temp = info_p->access->fifo_full(info_p);
37814 if (temp != 0) {
37815 break;
37816 }
37817 @@ -1465,7 +1465,7 @@ DBG(
37818 /*
37819 * Send the cmd
37820 */
37821 - info_p->access.submit_command(info_p, c);
37822 + info_p->access->submit_command(info_p, c);
37823 complete = pollcomplete(ctlr);
37824
37825 pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr,
37826 @@ -1548,9 +1548,9 @@ static int revalidate_allvol(ctlr_info_t *host)
37827 * we check the new geometry. Then turn interrupts back on when
37828 * we're done.
37829 */
37830 - host->access.set_intr_mask(host, 0);
37831 + host->access->set_intr_mask(host, 0);
37832 getgeometry(ctlr);
37833 - host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
37834 + host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
37835
37836 for(i=0; i<NWD; i++) {
37837 struct gendisk *disk = ida_gendisk[ctlr][i];
37838 @@ -1590,7 +1590,7 @@ static int pollcomplete(int ctlr)
37839 /* Wait (up to 2 seconds) for a command to complete */
37840
37841 for (i = 200000; i > 0; i--) {
37842 - done = hba[ctlr]->access.command_completed(hba[ctlr]);
37843 + done = hba[ctlr]->access->command_completed(hba[ctlr]);
37844 if (done == 0) {
37845 udelay(10); /* a short fixed delay */
37846 } else
37847 diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
37848 index be73e9d..7fbf140 100644
37849 --- a/drivers/block/cpqarray.h
37850 +++ b/drivers/block/cpqarray.h
37851 @@ -99,7 +99,7 @@ struct ctlr_info {
37852 drv_info_t drv[NWD];
37853 struct proc_dir_entry *proc;
37854
37855 - struct access_method access;
37856 + struct access_method *access;
37857
37858 cmdlist_t *reqQ;
37859 cmdlist_t *cmpQ;
37860 diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
37861 index e7093d4..b364085 100644
37862 --- a/drivers/block/drbd/drbd_int.h
37863 +++ b/drivers/block/drbd/drbd_int.h
37864 @@ -331,7 +331,7 @@ struct drbd_epoch {
37865 struct drbd_connection *connection;
37866 struct list_head list;
37867 unsigned int barrier_nr;
37868 - atomic_t epoch_size; /* increased on every request added. */
37869 + atomic_unchecked_t epoch_size; /* increased on every request added. */
37870 atomic_t active; /* increased on every req. added, and dec on every finished. */
37871 unsigned long flags;
37872 };
37873 @@ -787,7 +787,7 @@ struct drbd_device {
37874 unsigned int al_tr_number;
37875 int al_tr_cycle;
37876 wait_queue_head_t seq_wait;
37877 - atomic_t packet_seq;
37878 + atomic_unchecked_t packet_seq;
37879 unsigned int peer_seq;
37880 spinlock_t peer_seq_lock;
37881 unsigned int minor;
37882 @@ -1361,7 +1361,7 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname,
37883 char __user *uoptval;
37884 int err;
37885
37886 - uoptval = (char __user __force *)optval;
37887 + uoptval = (char __force_user *)optval;
37888
37889 set_fs(KERNEL_DS);
37890 if (level == SOL_SOCKET)
37891 diff --git a/drivers/block/drbd/drbd_interval.c b/drivers/block/drbd/drbd_interval.c
37892 index 89c497c..9c736ae 100644
37893 --- a/drivers/block/drbd/drbd_interval.c
37894 +++ b/drivers/block/drbd/drbd_interval.c
37895 @@ -67,9 +67,9 @@ static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
37896 }
37897
37898 static const struct rb_augment_callbacks augment_callbacks = {
37899 - augment_propagate,
37900 - augment_copy,
37901 - augment_rotate,
37902 + .propagate = augment_propagate,
37903 + .copy = augment_copy,
37904 + .rotate = augment_rotate,
37905 };
37906
37907 /**
37908 diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
37909 index 331e5cc..6d657bce 100644
37910 --- a/drivers/block/drbd/drbd_main.c
37911 +++ b/drivers/block/drbd/drbd_main.c
37912 @@ -1322,7 +1322,7 @@ static int _drbd_send_ack(struct drbd_peer_device *peer_device, enum drbd_packet
37913 p->sector = sector;
37914 p->block_id = block_id;
37915 p->blksize = blksize;
37916 - p->seq_num = cpu_to_be32(atomic_inc_return(&peer_device->device->packet_seq));
37917 + p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&peer_device->device->packet_seq));
37918 return drbd_send_command(peer_device, sock, cmd, sizeof(*p), NULL, 0);
37919 }
37920
37921 @@ -1628,7 +1628,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
37922 return -EIO;
37923 p->sector = cpu_to_be64(req->i.sector);
37924 p->block_id = (unsigned long)req;
37925 - p->seq_num = cpu_to_be32(atomic_inc_return(&device->packet_seq));
37926 + p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&device->packet_seq));
37927 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio->bi_rw);
37928 if (device->state.conn >= C_SYNC_SOURCE &&
37929 device->state.conn <= C_PAUSED_SYNC_T)
37930 @@ -2658,8 +2658,8 @@ void drbd_destroy_connection(struct kref *kref)
37931 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
37932 struct drbd_resource *resource = connection->resource;
37933
37934 - if (atomic_read(&connection->current_epoch->epoch_size) != 0)
37935 - drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));
37936 + if (atomic_read_unchecked(&connection->current_epoch->epoch_size) != 0)
37937 + drbd_err(connection, "epoch_size:%d\n", atomic_read_unchecked(&connection->current_epoch->epoch_size));
37938 kfree(connection->current_epoch);
37939
37940 idr_destroy(&connection->peer_devices);
37941 diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
37942 index 526414b..4eb8184 100644
37943 --- a/drivers/block/drbd/drbd_nl.c
37944 +++ b/drivers/block/drbd/drbd_nl.c
37945 @@ -3505,7 +3505,7 @@ out:
37946
37947 void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
37948 {
37949 - static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
37950 + static atomic_unchecked_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
37951 struct sk_buff *msg;
37952 struct drbd_genlmsghdr *d_out;
37953 unsigned seq;
37954 @@ -3518,7 +3518,7 @@ void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
37955 return;
37956 }
37957
37958 - seq = atomic_inc_return(&drbd_genl_seq);
37959 + seq = atomic_inc_return_unchecked(&drbd_genl_seq);
37960 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
37961 if (!msg)
37962 goto failed;
37963 diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
37964 index 68e3992..1aca24a 100644
37965 --- a/drivers/block/drbd/drbd_receiver.c
37966 +++ b/drivers/block/drbd/drbd_receiver.c
37967 @@ -826,7 +826,7 @@ int drbd_connected(struct drbd_peer_device *peer_device)
37968 struct drbd_device *device = peer_device->device;
37969 int err;
37970
37971 - atomic_set(&device->packet_seq, 0);
37972 + atomic_set_unchecked(&device->packet_seq, 0);
37973 device->peer_seq = 0;
37974
37975 device->state_mutex = peer_device->connection->agreed_pro_version < 100 ?
37976 @@ -1188,7 +1188,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
37977 do {
37978 next_epoch = NULL;
37979
37980 - epoch_size = atomic_read(&epoch->epoch_size);
37981 + epoch_size = atomic_read_unchecked(&epoch->epoch_size);
37982
37983 switch (ev & ~EV_CLEANUP) {
37984 case EV_PUT:
37985 @@ -1228,7 +1228,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
37986 rv = FE_DESTROYED;
37987 } else {
37988 epoch->flags = 0;
37989 - atomic_set(&epoch->epoch_size, 0);
37990 + atomic_set_unchecked(&epoch->epoch_size, 0);
37991 /* atomic_set(&epoch->active, 0); is already zero */
37992 if (rv == FE_STILL_LIVE)
37993 rv = FE_RECYCLED;
37994 @@ -1456,7 +1456,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
37995 conn_wait_active_ee_empty(connection);
37996 drbd_flush(connection);
37997
37998 - if (atomic_read(&connection->current_epoch->epoch_size)) {
37999 + if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38000 epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
38001 if (epoch)
38002 break;
38003 @@ -1469,11 +1469,11 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
38004 }
38005
38006 epoch->flags = 0;
38007 - atomic_set(&epoch->epoch_size, 0);
38008 + atomic_set_unchecked(&epoch->epoch_size, 0);
38009 atomic_set(&epoch->active, 0);
38010
38011 spin_lock(&connection->epoch_lock);
38012 - if (atomic_read(&connection->current_epoch->epoch_size)) {
38013 + if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38014 list_add(&epoch->list, &connection->current_epoch->list);
38015 connection->current_epoch = epoch;
38016 connection->epochs++;
38017 @@ -2182,7 +2182,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38018
38019 err = wait_for_and_update_peer_seq(peer_device, peer_seq);
38020 drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
38021 - atomic_inc(&connection->current_epoch->epoch_size);
38022 + atomic_inc_unchecked(&connection->current_epoch->epoch_size);
38023 err2 = drbd_drain_block(peer_device, pi->size);
38024 if (!err)
38025 err = err2;
38026 @@ -2216,7 +2216,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38027
38028 spin_lock(&connection->epoch_lock);
38029 peer_req->epoch = connection->current_epoch;
38030 - atomic_inc(&peer_req->epoch->epoch_size);
38031 + atomic_inc_unchecked(&peer_req->epoch->epoch_size);
38032 atomic_inc(&peer_req->epoch->active);
38033 spin_unlock(&connection->epoch_lock);
38034
38035 @@ -4396,7 +4396,7 @@ struct data_cmd {
38036 int expect_payload;
38037 size_t pkt_size;
38038 int (*fn)(struct drbd_connection *, struct packet_info *);
38039 -};
38040 +} __do_const;
38041
38042 static struct data_cmd drbd_cmd_handler[] = {
38043 [P_DATA] = { 1, sizeof(struct p_data), receive_Data },
38044 @@ -4506,7 +4506,7 @@ static void conn_disconnect(struct drbd_connection *connection)
38045 if (!list_empty(&connection->current_epoch->list))
38046 drbd_err(connection, "ASSERTION FAILED: connection->current_epoch->list not empty\n");
38047 /* ok, no more ee's on the fly, it is safe to reset the epoch_size */
38048 - atomic_set(&connection->current_epoch->epoch_size, 0);
38049 + atomic_set_unchecked(&connection->current_epoch->epoch_size, 0);
38050 connection->send.seen_any_write_yet = false;
38051
38052 drbd_info(connection, "Connection closed\n");
38053 @@ -5281,7 +5281,7 @@ static int connection_finish_peer_reqs(struct drbd_connection *connection)
38054 struct asender_cmd {
38055 size_t pkt_size;
38056 int (*fn)(struct drbd_connection *connection, struct packet_info *);
38057 -};
38058 +} __do_const;
38059
38060 static struct asender_cmd asender_tbl[] = {
38061 [P_PING] = { 0, got_Ping },
38062 diff --git a/drivers/block/loop.c b/drivers/block/loop.c
38063 index f70a230..9dc90d5 100644
38064 --- a/drivers/block/loop.c
38065 +++ b/drivers/block/loop.c
38066 @@ -232,7 +232,7 @@ static int __do_lo_send_write(struct file *file,
38067
38068 file_start_write(file);
38069 set_fs(get_ds());
38070 - bw = file->f_op->write(file, buf, len, &pos);
38071 + bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
38072 set_fs(old_fs);
38073 file_end_write(file);
38074 if (likely(bw == len))
38075 diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
38076 index 091b9ea..f5428f8 100644
38077 --- a/drivers/block/null_blk.c
38078 +++ b/drivers/block/null_blk.c
38079 @@ -382,15 +382,25 @@ static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
38080 return 0;
38081 }
38082
38083 -static struct blk_mq_ops null_mq_ops = {
38084 - .queue_rq = null_queue_rq,
38085 - .map_queue = blk_mq_map_queue,
38086 +static struct blk_mq_ops null_mq_single_ops = {
38087 + .queue_rq = null_queue_rq,
38088 + .map_queue = blk_mq_map_queue,
38089 .init_hctx = null_init_hctx,
38090 .complete = null_softirq_done_fn,
38091 + .alloc_hctx = blk_mq_alloc_single_hw_queue,
38092 + .free_hctx = blk_mq_free_single_hw_queue,
38093 +};
38094 +
38095 +static struct blk_mq_ops null_mq_per_node_ops = {
38096 + .queue_rq = null_queue_rq,
38097 + .map_queue = blk_mq_map_queue,
38098 + .init_hctx = null_init_hctx,
38099 + .alloc_hctx = null_alloc_hctx,
38100 + .free_hctx = null_free_hctx,
38101 };
38102
38103 static struct blk_mq_reg null_mq_reg = {
38104 - .ops = &null_mq_ops,
38105 + .ops = &null_mq_single_ops,
38106 .queue_depth = 64,
38107 .cmd_size = sizeof(struct nullb_cmd),
38108 .flags = BLK_MQ_F_SHOULD_MERGE,
38109 @@ -521,13 +531,8 @@ static int null_add_dev(void)
38110 null_mq_reg.queue_depth = hw_queue_depth;
38111 null_mq_reg.nr_hw_queues = submit_queues;
38112
38113 - if (use_per_node_hctx) {
38114 - null_mq_reg.ops->alloc_hctx = null_alloc_hctx;
38115 - null_mq_reg.ops->free_hctx = null_free_hctx;
38116 - } else {
38117 - null_mq_reg.ops->alloc_hctx = blk_mq_alloc_single_hw_queue;
38118 - null_mq_reg.ops->free_hctx = blk_mq_free_single_hw_queue;
38119 - }
38120 + if (use_per_node_hctx)
38121 + null_mq_reg.ops = &null_mq_per_node_ops;
38122
38123 nullb->q = blk_mq_init_queue(&null_mq_reg, nullb);
38124 } else if (queue_mode == NULL_Q_BIO) {
38125 diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
38126 index a2af73d..c0b8f61 100644
38127 --- a/drivers/block/pktcdvd.c
38128 +++ b/drivers/block/pktcdvd.c
38129 @@ -108,7 +108,7 @@ static int pkt_seq_show(struct seq_file *m, void *p);
38130
38131 static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
38132 {
38133 - return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1);
38134 + return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1UL);
38135 }
38136
38137 /*
38138 @@ -1888,7 +1888,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
38139 return -EROFS;
38140 }
38141 pd->settings.fp = ti.fp;
38142 - pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
38143 + pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1UL);
38144
38145 if (ti.nwa_v) {
38146 pd->nwa = be32_to_cpu(ti.next_writable);
38147 diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h
38148 index e5565fb..71be10b4 100644
38149 --- a/drivers/block/smart1,2.h
38150 +++ b/drivers/block/smart1,2.h
38151 @@ -108,11 +108,11 @@ static unsigned long smart4_intr_pending(ctlr_info_t *h)
38152 }
38153
38154 static struct access_method smart4_access = {
38155 - smart4_submit_command,
38156 - smart4_intr_mask,
38157 - smart4_fifo_full,
38158 - smart4_intr_pending,
38159 - smart4_completed,
38160 + .submit_command = smart4_submit_command,
38161 + .set_intr_mask = smart4_intr_mask,
38162 + .fifo_full = smart4_fifo_full,
38163 + .intr_pending = smart4_intr_pending,
38164 + .command_completed = smart4_completed,
38165 };
38166
38167 /*
38168 @@ -144,11 +144,11 @@ static unsigned long smart2_intr_pending(ctlr_info_t *h)
38169 }
38170
38171 static struct access_method smart2_access = {
38172 - smart2_submit_command,
38173 - smart2_intr_mask,
38174 - smart2_fifo_full,
38175 - smart2_intr_pending,
38176 - smart2_completed,
38177 + .submit_command = smart2_submit_command,
38178 + .set_intr_mask = smart2_intr_mask,
38179 + .fifo_full = smart2_fifo_full,
38180 + .intr_pending = smart2_intr_pending,
38181 + .command_completed = smart2_completed,
38182 };
38183
38184 /*
38185 @@ -180,11 +180,11 @@ static unsigned long smart2e_intr_pending(ctlr_info_t *h)
38186 }
38187
38188 static struct access_method smart2e_access = {
38189 - smart2e_submit_command,
38190 - smart2e_intr_mask,
38191 - smart2e_fifo_full,
38192 - smart2e_intr_pending,
38193 - smart2e_completed,
38194 + .submit_command = smart2e_submit_command,
38195 + .set_intr_mask = smart2e_intr_mask,
38196 + .fifo_full = smart2e_fifo_full,
38197 + .intr_pending = smart2e_intr_pending,
38198 + .command_completed = smart2e_completed,
38199 };
38200
38201 /*
38202 @@ -270,9 +270,9 @@ static unsigned long smart1_intr_pending(ctlr_info_t *h)
38203 }
38204
38205 static struct access_method smart1_access = {
38206 - smart1_submit_command,
38207 - smart1_intr_mask,
38208 - smart1_fifo_full,
38209 - smart1_intr_pending,
38210 - smart1_completed,
38211 + .submit_command = smart1_submit_command,
38212 + .set_intr_mask = smart1_intr_mask,
38213 + .fifo_full = smart1_fifo_full,
38214 + .intr_pending = smart1_intr_pending,
38215 + .command_completed = smart1_completed,
38216 };
38217 diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
38218 index f038dba..bb74c08 100644
38219 --- a/drivers/bluetooth/btwilink.c
38220 +++ b/drivers/bluetooth/btwilink.c
38221 @@ -288,7 +288,7 @@ static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
38222
38223 static int bt_ti_probe(struct platform_device *pdev)
38224 {
38225 - static struct ti_st *hst;
38226 + struct ti_st *hst;
38227 struct hci_dev *hdev;
38228 int err;
38229
38230 diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
38231 index 8a3aff7..d7538c2 100644
38232 --- a/drivers/cdrom/cdrom.c
38233 +++ b/drivers/cdrom/cdrom.c
38234 @@ -416,7 +416,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
38235 ENSURE(reset, CDC_RESET);
38236 ENSURE(generic_packet, CDC_GENERIC_PACKET);
38237 cdi->mc_flags = 0;
38238 - cdo->n_minors = 0;
38239 cdi->options = CDO_USE_FFLAGS;
38240
38241 if (autoclose==1 && CDROM_CAN(CDC_CLOSE_TRAY))
38242 @@ -436,8 +435,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
38243 else
38244 cdi->cdda_method = CDDA_OLD;
38245
38246 - if (!cdo->generic_packet)
38247 - cdo->generic_packet = cdrom_dummy_generic_packet;
38248 + if (!cdo->generic_packet) {
38249 + pax_open_kernel();
38250 + *(void **)&cdo->generic_packet = cdrom_dummy_generic_packet;
38251 + pax_close_kernel();
38252 + }
38253
38254 cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
38255 mutex_lock(&cdrom_mutex);
38256 @@ -458,7 +460,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
38257 if (cdi->exit)
38258 cdi->exit(cdi);
38259
38260 - cdi->ops->n_minors--;
38261 cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
38262 }
38263
38264 @@ -2107,7 +2108,7 @@ static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf,
38265 */
38266 nr = nframes;
38267 do {
38268 - cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38269 + cgc.buffer = kzalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38270 if (cgc.buffer)
38271 break;
38272
38273 @@ -3429,7 +3430,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
38274 struct cdrom_device_info *cdi;
38275 int ret;
38276
38277 - ret = scnprintf(info + *pos, max_size - *pos, header);
38278 + ret = scnprintf(info + *pos, max_size - *pos, "%s", header);
38279 if (!ret)
38280 return 1;
38281
38282 diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
38283 index 51e75ad..39c4c76 100644
38284 --- a/drivers/cdrom/gdrom.c
38285 +++ b/drivers/cdrom/gdrom.c
38286 @@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
38287 .audio_ioctl = gdrom_audio_ioctl,
38288 .capability = CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
38289 CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
38290 - .n_minors = 1,
38291 };
38292
38293 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
38294 diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
38295 index 6e9f74a..50c7cea 100644
38296 --- a/drivers/char/Kconfig
38297 +++ b/drivers/char/Kconfig
38298 @@ -8,7 +8,8 @@ source "drivers/tty/Kconfig"
38299
38300 config DEVKMEM
38301 bool "/dev/kmem virtual device support"
38302 - default y
38303 + default n
38304 + depends on !GRKERNSEC_KMEM
38305 help
38306 Say Y here if you want to support the /dev/kmem device. The
38307 /dev/kmem device is rarely used, but can be used for certain
38308 @@ -577,6 +578,7 @@ config DEVPORT
38309 bool
38310 depends on !M68K
38311 depends on ISA || PCI
38312 + depends on !GRKERNSEC_KMEM
38313 default y
38314
38315 source "drivers/s390/char/Kconfig"
38316 diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
38317 index a48e05b..6bac831 100644
38318 --- a/drivers/char/agp/compat_ioctl.c
38319 +++ b/drivers/char/agp/compat_ioctl.c
38320 @@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
38321 return -ENOMEM;
38322 }
38323
38324 - if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
38325 + if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
38326 sizeof(*usegment) * ureserve.seg_count)) {
38327 kfree(usegment);
38328 kfree(ksegment);
38329 diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
38330 index b297033..fa217ca 100644
38331 --- a/drivers/char/agp/frontend.c
38332 +++ b/drivers/char/agp/frontend.c
38333 @@ -819,7 +819,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38334 if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
38335 return -EFAULT;
38336
38337 - if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
38338 + if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
38339 return -EFAULT;
38340
38341 client = agp_find_client_by_pid(reserve.pid);
38342 @@ -849,7 +849,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38343 if (segment == NULL)
38344 return -ENOMEM;
38345
38346 - if (copy_from_user(segment, (void __user *) reserve.seg_list,
38347 + if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
38348 sizeof(struct agp_segment) * reserve.seg_count)) {
38349 kfree(segment);
38350 return -EFAULT;
38351 diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
38352 index 4f94375..413694e 100644
38353 --- a/drivers/char/genrtc.c
38354 +++ b/drivers/char/genrtc.c
38355 @@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *file,
38356 switch (cmd) {
38357
38358 case RTC_PLL_GET:
38359 + memset(&pll, 0, sizeof(pll));
38360 if (get_rtc_pll(&pll))
38361 return -EINVAL;
38362 else
38363 diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
38364 index d5d4cd8..22d561d 100644
38365 --- a/drivers/char/hpet.c
38366 +++ b/drivers/char/hpet.c
38367 @@ -575,7 +575,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
38368 }
38369
38370 static int
38371 -hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
38372 +hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
38373 struct hpet_info *info)
38374 {
38375 struct hpet_timer __iomem *timer;
38376 diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
38377 index 86fe45c..c0ea948 100644
38378 --- a/drivers/char/hw_random/intel-rng.c
38379 +++ b/drivers/char/hw_random/intel-rng.c
38380 @@ -314,7 +314,7 @@ PFX "RNG, try using the 'no_fwh_detect' option.\n";
38381
38382 if (no_fwh_detect)
38383 return -ENODEV;
38384 - printk(warning);
38385 + printk("%s", warning);
38386 return -EBUSY;
38387 }
38388
38389 diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
38390 index e6db938..835e3a2 100644
38391 --- a/drivers/char/ipmi/ipmi_msghandler.c
38392 +++ b/drivers/char/ipmi/ipmi_msghandler.c
38393 @@ -438,7 +438,7 @@ struct ipmi_smi {
38394 struct proc_dir_entry *proc_dir;
38395 char proc_dir_name[10];
38396
38397 - atomic_t stats[IPMI_NUM_STATS];
38398 + atomic_unchecked_t stats[IPMI_NUM_STATS];
38399
38400 /*
38401 * run_to_completion duplicate of smb_info, smi_info
38402 @@ -470,9 +470,9 @@ static LIST_HEAD(smi_watchers);
38403 static DEFINE_MUTEX(smi_watchers_mutex);
38404
38405 #define ipmi_inc_stat(intf, stat) \
38406 - atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
38407 + atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
38408 #define ipmi_get_stat(intf, stat) \
38409 - ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
38410 + ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
38411
38412 static int is_lan_addr(struct ipmi_addr *addr)
38413 {
38414 @@ -2926,7 +2926,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
38415 INIT_LIST_HEAD(&intf->cmd_rcvrs);
38416 init_waitqueue_head(&intf->waitq);
38417 for (i = 0; i < IPMI_NUM_STATS; i++)
38418 - atomic_set(&intf->stats[i], 0);
38419 + atomic_set_unchecked(&intf->stats[i], 0);
38420
38421 intf->proc_dir = NULL;
38422
38423 diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
38424 index 1c4bb4f..719e873 100644
38425 --- a/drivers/char/ipmi/ipmi_si_intf.c
38426 +++ b/drivers/char/ipmi/ipmi_si_intf.c
38427 @@ -285,7 +285,7 @@ struct smi_info {
38428 unsigned char slave_addr;
38429
38430 /* Counters and things for the proc filesystem. */
38431 - atomic_t stats[SI_NUM_STATS];
38432 + atomic_unchecked_t stats[SI_NUM_STATS];
38433
38434 struct task_struct *thread;
38435
38436 @@ -294,9 +294,9 @@ struct smi_info {
38437 };
38438
38439 #define smi_inc_stat(smi, stat) \
38440 - atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
38441 + atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
38442 #define smi_get_stat(smi, stat) \
38443 - ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
38444 + ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
38445
38446 #define SI_MAX_PARMS 4
38447
38448 @@ -3374,7 +3374,7 @@ static int try_smi_init(struct smi_info *new_smi)
38449 atomic_set(&new_smi->req_events, 0);
38450 new_smi->run_to_completion = false;
38451 for (i = 0; i < SI_NUM_STATS; i++)
38452 - atomic_set(&new_smi->stats[i], 0);
38453 + atomic_set_unchecked(&new_smi->stats[i], 0);
38454
38455 new_smi->interrupt_disabled = true;
38456 atomic_set(&new_smi->stop_operation, 0);
38457 diff --git a/drivers/char/mem.c b/drivers/char/mem.c
38458 index 917403f..dddd899 100644
38459 --- a/drivers/char/mem.c
38460 +++ b/drivers/char/mem.c
38461 @@ -18,6 +18,7 @@
38462 #include <linux/raw.h>
38463 #include <linux/tty.h>
38464 #include <linux/capability.h>
38465 +#include <linux/security.h>
38466 #include <linux/ptrace.h>
38467 #include <linux/device.h>
38468 #include <linux/highmem.h>
38469 @@ -36,6 +37,10 @@
38470
38471 #define DEVPORT_MINOR 4
38472
38473 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
38474 +extern const struct file_operations grsec_fops;
38475 +#endif
38476 +
38477 static inline unsigned long size_inside_page(unsigned long start,
38478 unsigned long size)
38479 {
38480 @@ -67,9 +72,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38481
38482 while (cursor < to) {
38483 if (!devmem_is_allowed(pfn)) {
38484 +#ifdef CONFIG_GRKERNSEC_KMEM
38485 + gr_handle_mem_readwrite(from, to);
38486 +#else
38487 printk(KERN_INFO
38488 "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
38489 current->comm, from, to);
38490 +#endif
38491 return 0;
38492 }
38493 cursor += PAGE_SIZE;
38494 @@ -77,6 +86,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38495 }
38496 return 1;
38497 }
38498 +#elif defined(CONFIG_GRKERNSEC_KMEM)
38499 +static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38500 +{
38501 + return 0;
38502 +}
38503 #else
38504 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
38505 {
38506 @@ -122,6 +136,7 @@ static ssize_t read_mem(struct file *file, char __user *buf,
38507
38508 while (count > 0) {
38509 unsigned long remaining;
38510 + char *temp;
38511
38512 sz = size_inside_page(p, count);
38513
38514 @@ -137,7 +152,23 @@ static ssize_t read_mem(struct file *file, char __user *buf,
38515 if (!ptr)
38516 return -EFAULT;
38517
38518 - remaining = copy_to_user(buf, ptr, sz);
38519 +#ifdef CONFIG_PAX_USERCOPY
38520 + temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
38521 + if (!temp) {
38522 + unxlate_dev_mem_ptr(p, ptr);
38523 + return -ENOMEM;
38524 + }
38525 + memcpy(temp, ptr, sz);
38526 +#else
38527 + temp = ptr;
38528 +#endif
38529 +
38530 + remaining = copy_to_user(buf, temp, sz);
38531 +
38532 +#ifdef CONFIG_PAX_USERCOPY
38533 + kfree(temp);
38534 +#endif
38535 +
38536 unxlate_dev_mem_ptr(p, ptr);
38537 if (remaining)
38538 return -EFAULT;
38539 @@ -369,9 +400,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
38540 size_t count, loff_t *ppos)
38541 {
38542 unsigned long p = *ppos;
38543 - ssize_t low_count, read, sz;
38544 + ssize_t low_count, read, sz, err = 0;
38545 char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
38546 - int err = 0;
38547
38548 read = 0;
38549 if (p < (unsigned long) high_memory) {
38550 @@ -393,6 +423,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
38551 }
38552 #endif
38553 while (low_count > 0) {
38554 + char *temp;
38555 +
38556 sz = size_inside_page(p, low_count);
38557
38558 /*
38559 @@ -402,7 +434,22 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
38560 */
38561 kbuf = xlate_dev_kmem_ptr((char *)p);
38562
38563 - if (copy_to_user(buf, kbuf, sz))
38564 +#ifdef CONFIG_PAX_USERCOPY
38565 + temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
38566 + if (!temp)
38567 + return -ENOMEM;
38568 + memcpy(temp, kbuf, sz);
38569 +#else
38570 + temp = kbuf;
38571 +#endif
38572 +
38573 + err = copy_to_user(buf, temp, sz);
38574 +
38575 +#ifdef CONFIG_PAX_USERCOPY
38576 + kfree(temp);
38577 +#endif
38578 +
38579 + if (err)
38580 return -EFAULT;
38581 buf += sz;
38582 p += sz;
38583 @@ -827,6 +874,9 @@ static const struct memdev {
38584 #ifdef CONFIG_PRINTK
38585 [11] = { "kmsg", 0644, &kmsg_fops, NULL },
38586 #endif
38587 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
38588 + [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL },
38589 +#endif
38590 };
38591
38592 static int memory_open(struct inode *inode, struct file *filp)
38593 @@ -898,7 +948,7 @@ static int __init chr_dev_init(void)
38594 continue;
38595
38596 device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
38597 - NULL, devlist[minor].name);
38598 + NULL, "%s", devlist[minor].name);
38599 }
38600
38601 return tty_init();
38602 diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
38603 index 9df78e2..01ba9ae 100644
38604 --- a/drivers/char/nvram.c
38605 +++ b/drivers/char/nvram.c
38606 @@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
38607
38608 spin_unlock_irq(&rtc_lock);
38609
38610 - if (copy_to_user(buf, contents, tmp - contents))
38611 + if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
38612 return -EFAULT;
38613
38614 *ppos = i;
38615 diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
38616 index 8320abd..ec48108 100644
38617 --- a/drivers/char/pcmcia/synclink_cs.c
38618 +++ b/drivers/char/pcmcia/synclink_cs.c
38619 @@ -2345,9 +2345,9 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
38620
38621 if (debug_level >= DEBUG_LEVEL_INFO)
38622 printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
38623 - __FILE__, __LINE__, info->device_name, port->count);
38624 + __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
38625
38626 - WARN_ON(!port->count);
38627 + WARN_ON(!atomic_read(&port->count));
38628
38629 if (tty_port_close_start(port, tty, filp) == 0)
38630 goto cleanup;
38631 @@ -2365,7 +2365,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
38632 cleanup:
38633 if (debug_level >= DEBUG_LEVEL_INFO)
38634 printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
38635 - tty->driver->name, port->count);
38636 + tty->driver->name, atomic_read(&port->count));
38637 }
38638
38639 /* Wait until the transmitter is empty.
38640 @@ -2507,7 +2507,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
38641
38642 if (debug_level >= DEBUG_LEVEL_INFO)
38643 printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
38644 - __FILE__, __LINE__, tty->driver->name, port->count);
38645 + __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
38646
38647 /* If port is closing, signal caller to try again */
38648 if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){
38649 @@ -2527,11 +2527,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
38650 goto cleanup;
38651 }
38652 spin_lock(&port->lock);
38653 - port->count++;
38654 + atomic_inc(&port->count);
38655 spin_unlock(&port->lock);
38656 spin_unlock_irqrestore(&info->netlock, flags);
38657
38658 - if (port->count == 1) {
38659 + if (atomic_read(&port->count) == 1) {
38660 /* 1st open on this device, init hardware */
38661 retval = startup(info, tty);
38662 if (retval < 0)
38663 @@ -3920,7 +3920,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
38664 unsigned short new_crctype;
38665
38666 /* return error if TTY interface open */
38667 - if (info->port.count)
38668 + if (atomic_read(&info->port.count))
38669 return -EBUSY;
38670
38671 switch (encoding)
38672 @@ -4024,7 +4024,7 @@ static int hdlcdev_open(struct net_device *dev)
38673
38674 /* arbitrate between network and tty opens */
38675 spin_lock_irqsave(&info->netlock, flags);
38676 - if (info->port.count != 0 || info->netcount != 0) {
38677 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
38678 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
38679 spin_unlock_irqrestore(&info->netlock, flags);
38680 return -EBUSY;
38681 @@ -4114,7 +4114,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
38682 printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
38683
38684 /* return error if TTY interface open */
38685 - if (info->port.count)
38686 + if (atomic_read(&info->port.count))
38687 return -EBUSY;
38688
38689 if (cmd != SIOCWANDEV)
38690 diff --git a/drivers/char/random.c b/drivers/char/random.c
38691 index 2b6e4cd..43d7ae1 100644
38692 --- a/drivers/char/random.c
38693 +++ b/drivers/char/random.c
38694 @@ -270,10 +270,17 @@
38695 /*
38696 * Configuration information
38697 */
38698 +#ifdef CONFIG_GRKERNSEC_RANDNET
38699 +#define INPUT_POOL_SHIFT 14
38700 +#define INPUT_POOL_WORDS (1 << (INPUT_POOL_SHIFT-5))
38701 +#define OUTPUT_POOL_SHIFT 12
38702 +#define OUTPUT_POOL_WORDS (1 << (OUTPUT_POOL_SHIFT-5))
38703 +#else
38704 #define INPUT_POOL_SHIFT 12
38705 #define INPUT_POOL_WORDS (1 << (INPUT_POOL_SHIFT-5))
38706 #define OUTPUT_POOL_SHIFT 10
38707 #define OUTPUT_POOL_WORDS (1 << (OUTPUT_POOL_SHIFT-5))
38708 +#endif
38709 #define SEC_XFER_SIZE 512
38710 #define EXTRACT_SIZE 10
38711
38712 @@ -284,9 +291,6 @@
38713 /*
38714 * To allow fractional bits to be tracked, the entropy_count field is
38715 * denominated in units of 1/8th bits.
38716 - *
38717 - * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
38718 - * credit_entropy_bits() needs to be 64 bits wide.
38719 */
38720 #define ENTROPY_SHIFT 3
38721 #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
38722 @@ -361,12 +365,19 @@ static struct poolinfo {
38723 #define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5)
38724 int tap1, tap2, tap3, tap4, tap5;
38725 } poolinfo_table[] = {
38726 +#ifdef CONFIG_GRKERNSEC_RANDNET
38727 + /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */
38728 + { S(512), 411, 308, 208, 104, 1 },
38729 + /* x^128 + x^104 + x^76 + x^51 + x^25 + x + 1 -- 105 */
38730 + { S(128), 104, 76, 51, 25, 1 },
38731 +#else
38732 /* was: x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 */
38733 /* x^128 + x^104 + x^76 + x^51 +x^25 + x + 1 */
38734 { S(128), 104, 76, 51, 25, 1 },
38735 /* was: x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 */
38736 /* x^32 + x^26 + x^19 + x^14 + x^7 + x + 1 */
38737 { S(32), 26, 19, 14, 7, 1 },
38738 +#endif
38739 #if 0
38740 /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */
38741 { S(2048), 1638, 1231, 819, 411, 1 },
38742 @@ -433,9 +444,9 @@ struct entropy_store {
38743 };
38744
38745 static void push_to_pool(struct work_struct *work);
38746 -static __u32 input_pool_data[INPUT_POOL_WORDS];
38747 -static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
38748 -static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
38749 +static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
38750 +static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
38751 +static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
38752
38753 static struct entropy_store input_pool = {
38754 .poolinfo = &poolinfo_table[0],
38755 @@ -524,8 +535,8 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
38756 input_rotate = (input_rotate + (i ? 7 : 14)) & 31;
38757 }
38758
38759 - ACCESS_ONCE(r->input_rotate) = input_rotate;
38760 - ACCESS_ONCE(r->add_ptr) = i;
38761 + ACCESS_ONCE_RW(r->input_rotate) = input_rotate;
38762 + ACCESS_ONCE_RW(r->add_ptr) = i;
38763 smp_wmb();
38764
38765 if (out)
38766 @@ -632,7 +643,7 @@ retry:
38767 /* The +2 corresponds to the /4 in the denominator */
38768
38769 do {
38770 - unsigned int anfrac = min(pnfrac, pool_size/2);
38771 + u64 anfrac = min(pnfrac, pool_size/2);
38772 unsigned int add =
38773 ((pool_size - entropy_count)*anfrac*3) >> s;
38774
38775 @@ -1166,7 +1177,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
38776
38777 extract_buf(r, tmp);
38778 i = min_t(int, nbytes, EXTRACT_SIZE);
38779 - if (copy_to_user(buf, tmp, i)) {
38780 + if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
38781 ret = -EFAULT;
38782 break;
38783 }
38784 @@ -1555,7 +1566,7 @@ static char sysctl_bootid[16];
38785 static int proc_do_uuid(struct ctl_table *table, int write,
38786 void __user *buffer, size_t *lenp, loff_t *ppos)
38787 {
38788 - struct ctl_table fake_table;
38789 + ctl_table_no_const fake_table;
38790 unsigned char buf[64], tmp_uuid[16], *uuid;
38791
38792 uuid = table->data;
38793 @@ -1585,7 +1596,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
38794 static int proc_do_entropy(ctl_table *table, int write,
38795 void __user *buffer, size_t *lenp, loff_t *ppos)
38796 {
38797 - ctl_table fake_table;
38798 + ctl_table_no_const fake_table;
38799 int entropy_count;
38800
38801 entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
38802 diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
38803 index 7cc1fe22..b602d6b 100644
38804 --- a/drivers/char/sonypi.c
38805 +++ b/drivers/char/sonypi.c
38806 @@ -54,6 +54,7 @@
38807
38808 #include <asm/uaccess.h>
38809 #include <asm/io.h>
38810 +#include <asm/local.h>
38811
38812 #include <linux/sonypi.h>
38813
38814 @@ -490,7 +491,7 @@ static struct sonypi_device {
38815 spinlock_t fifo_lock;
38816 wait_queue_head_t fifo_proc_list;
38817 struct fasync_struct *fifo_async;
38818 - int open_count;
38819 + local_t open_count;
38820 int model;
38821 struct input_dev *input_jog_dev;
38822 struct input_dev *input_key_dev;
38823 @@ -892,7 +893,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
38824 static int sonypi_misc_release(struct inode *inode, struct file *file)
38825 {
38826 mutex_lock(&sonypi_device.lock);
38827 - sonypi_device.open_count--;
38828 + local_dec(&sonypi_device.open_count);
38829 mutex_unlock(&sonypi_device.lock);
38830 return 0;
38831 }
38832 @@ -901,9 +902,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
38833 {
38834 mutex_lock(&sonypi_device.lock);
38835 /* Flush input queue on first open */
38836 - if (!sonypi_device.open_count)
38837 + if (!local_read(&sonypi_device.open_count))
38838 kfifo_reset(&sonypi_device.fifo);
38839 - sonypi_device.open_count++;
38840 + local_inc(&sonypi_device.open_count);
38841 mutex_unlock(&sonypi_device.lock);
38842
38843 return 0;
38844 diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
38845 index b9a57fa..5bb9e38 100644
38846 --- a/drivers/char/tpm/tpm_acpi.c
38847 +++ b/drivers/char/tpm/tpm_acpi.c
38848 @@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
38849 virt = acpi_os_map_memory(start, len);
38850 if (!virt) {
38851 kfree(log->bios_event_log);
38852 + log->bios_event_log = NULL;
38853 printk("%s: ERROR - Unable to map memory\n", __func__);
38854 return -EIO;
38855 }
38856
38857 - memcpy_fromio(log->bios_event_log, virt, len);
38858 + memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
38859
38860 acpi_os_unmap_memory(virt, len);
38861 return 0;
38862 diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
38863 index 59f7cb2..bac8b6d 100644
38864 --- a/drivers/char/tpm/tpm_eventlog.c
38865 +++ b/drivers/char/tpm/tpm_eventlog.c
38866 @@ -95,7 +95,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
38867 event = addr;
38868
38869 if ((event->event_type == 0 && event->event_size == 0) ||
38870 - ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
38871 + (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
38872 return NULL;
38873
38874 return addr;
38875 @@ -120,7 +120,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
38876 return NULL;
38877
38878 if ((event->event_type == 0 && event->event_size == 0) ||
38879 - ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
38880 + (event->event_size >= limit - v - sizeof(struct tcpa_event)))
38881 return NULL;
38882
38883 (*pos)++;
38884 @@ -213,7 +213,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
38885 int i;
38886
38887 for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
38888 - seq_putc(m, data[i]);
38889 + if (!seq_putc(m, data[i]))
38890 + return -EFAULT;
38891
38892 return 0;
38893 }
38894 diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
38895 index 60aafb8..10c08e0 100644
38896 --- a/drivers/char/virtio_console.c
38897 +++ b/drivers/char/virtio_console.c
38898 @@ -684,7 +684,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
38899 if (to_user) {
38900 ssize_t ret;
38901
38902 - ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
38903 + ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
38904 if (ret)
38905 return -EFAULT;
38906 } else {
38907 @@ -787,7 +787,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
38908 if (!port_has_data(port) && !port->host_connected)
38909 return 0;
38910
38911 - return fill_readbuf(port, ubuf, count, true);
38912 + return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
38913 }
38914
38915 static int wait_port_writable(struct port *port, bool nonblock)
38916 diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
38917 index 57a078e..c17cde8 100644
38918 --- a/drivers/clk/clk-composite.c
38919 +++ b/drivers/clk/clk-composite.c
38920 @@ -146,7 +146,7 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
38921 struct clk *clk;
38922 struct clk_init_data init;
38923 struct clk_composite *composite;
38924 - struct clk_ops *clk_composite_ops;
38925 + clk_ops_no_const *clk_composite_ops;
38926
38927 composite = kzalloc(sizeof(*composite), GFP_KERNEL);
38928 if (!composite) {
38929 diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
38930 index 501d513..fb0ecf9 100644
38931 --- a/drivers/clk/socfpga/clk-gate.c
38932 +++ b/drivers/clk/socfpga/clk-gate.c
38933 @@ -22,6 +22,7 @@
38934 #include <linux/mfd/syscon.h>
38935 #include <linux/of.h>
38936 #include <linux/regmap.h>
38937 +#include <asm/pgtable.h>
38938
38939 #include "clk.h"
38940
38941 @@ -175,7 +176,7 @@ static int socfpga_clk_prepare(struct clk_hw *hwclk)
38942 return 0;
38943 }
38944
38945 -static struct clk_ops gateclk_ops = {
38946 +static clk_ops_no_const gateclk_ops __read_only = {
38947 .prepare = socfpga_clk_prepare,
38948 .recalc_rate = socfpga_clk_recalc_rate,
38949 .get_parent = socfpga_clk_get_parent,
38950 @@ -209,8 +210,10 @@ static void __init __socfpga_gate_init(struct device_node *node,
38951 socfpga_clk->hw.reg = clk_mgr_base_addr + clk_gate[0];
38952 socfpga_clk->hw.bit_idx = clk_gate[1];
38953
38954 - gateclk_ops.enable = clk_gate_ops.enable;
38955 - gateclk_ops.disable = clk_gate_ops.disable;
38956 + pax_open_kernel();
38957 + *(void **)&gateclk_ops.enable = clk_gate_ops.enable;
38958 + *(void **)&gateclk_ops.disable = clk_gate_ops.disable;
38959 + pax_close_kernel();
38960 }
38961
38962 rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
38963 diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
38964 index de6da95..a2e72c0 100644
38965 --- a/drivers/clk/socfpga/clk-pll.c
38966 +++ b/drivers/clk/socfpga/clk-pll.c
38967 @@ -21,6 +21,7 @@
38968 #include <linux/io.h>
38969 #include <linux/of.h>
38970 #include <linux/of_address.h>
38971 +#include <asm/pgtable.h>
38972
38973 #include "clk.h"
38974
38975 @@ -76,7 +77,7 @@ static u8 clk_pll_get_parent(struct clk_hw *hwclk)
38976 CLK_MGR_PLL_CLK_SRC_MASK;
38977 }
38978
38979 -static struct clk_ops clk_pll_ops = {
38980 +static struct clk_ops_no_const clk_pll_ops __read_only = {
38981 .recalc_rate = clk_pll_recalc_rate,
38982 .get_parent = clk_pll_get_parent,
38983 };
38984 @@ -120,8 +121,10 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
38985 pll_clk->hw.hw.init = &init;
38986
38987 pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
38988 - clk_pll_ops.enable = clk_gate_ops.enable;
38989 - clk_pll_ops.disable = clk_gate_ops.disable;
38990 + pax_open_kernel();
38991 + *(void **)&clk_pll_ops.enable = clk_gate_ops.enable;
38992 + *(void **)&clk_pll_ops.disable = clk_gate_ops.disable;
38993 + pax_close_kernel();
38994
38995 clk = clk_register(NULL, &pll_clk->hw.hw);
38996 if (WARN_ON(IS_ERR(clk))) {
38997 diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
38998 index 000e4e0..4770351 100644
38999 --- a/drivers/cpufreq/acpi-cpufreq.c
39000 +++ b/drivers/cpufreq/acpi-cpufreq.c
39001 @@ -676,8 +676,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39002 data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
39003 per_cpu(acfreq_data, cpu) = data;
39004
39005 - if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
39006 - acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39007 + if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
39008 + pax_open_kernel();
39009 + *(u8 *)&acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39010 + pax_close_kernel();
39011 + }
39012
39013 result = acpi_processor_register_performance(data->acpi_data, cpu);
39014 if (result)
39015 @@ -810,7 +813,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39016 policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
39017 break;
39018 case ACPI_ADR_SPACE_FIXED_HARDWARE:
39019 - acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39020 + pax_open_kernel();
39021 + *(void **)&acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39022 + pax_close_kernel();
39023 break;
39024 default:
39025 break;
39026 @@ -904,8 +909,10 @@ static void __init acpi_cpufreq_boost_init(void)
39027 if (!msrs)
39028 return;
39029
39030 - acpi_cpufreq_driver.boost_supported = true;
39031 - acpi_cpufreq_driver.boost_enabled = boost_state(0);
39032 + pax_open_kernel();
39033 + *(bool *)&acpi_cpufreq_driver.boost_supported = true;
39034 + *(bool *)&acpi_cpufreq_driver.boost_enabled = boost_state(0);
39035 + pax_close_kernel();
39036
39037 cpu_notifier_register_begin();
39038
39039 diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
39040 index 558224c..55e3b57 100644
39041 --- a/drivers/cpufreq/cpufreq.c
39042 +++ b/drivers/cpufreq/cpufreq.c
39043 @@ -2022,7 +2022,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
39044 }
39045
39046 mutex_lock(&cpufreq_governor_mutex);
39047 - list_del(&governor->governor_list);
39048 + pax_list_del(&governor->governor_list);
39049 mutex_unlock(&cpufreq_governor_mutex);
39050 return;
39051 }
39052 @@ -2238,7 +2238,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
39053 return NOTIFY_OK;
39054 }
39055
39056 -static struct notifier_block __refdata cpufreq_cpu_notifier = {
39057 +static struct notifier_block cpufreq_cpu_notifier = {
39058 .notifier_call = cpufreq_cpu_callback,
39059 };
39060
39061 @@ -2278,13 +2278,17 @@ int cpufreq_boost_trigger_state(int state)
39062 return 0;
39063
39064 write_lock_irqsave(&cpufreq_driver_lock, flags);
39065 - cpufreq_driver->boost_enabled = state;
39066 + pax_open_kernel();
39067 + *(bool *)&cpufreq_driver->boost_enabled = state;
39068 + pax_close_kernel();
39069 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39070
39071 ret = cpufreq_driver->set_boost(state);
39072 if (ret) {
39073 write_lock_irqsave(&cpufreq_driver_lock, flags);
39074 - cpufreq_driver->boost_enabled = !state;
39075 + pax_open_kernel();
39076 + *(bool *)&cpufreq_driver->boost_enabled = !state;
39077 + pax_close_kernel();
39078 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39079
39080 pr_err("%s: Cannot %s BOOST\n",
39081 @@ -2340,8 +2344,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
39082
39083 pr_debug("trying to register driver %s\n", driver_data->name);
39084
39085 - if (driver_data->setpolicy)
39086 - driver_data->flags |= CPUFREQ_CONST_LOOPS;
39087 + if (driver_data->setpolicy) {
39088 + pax_open_kernel();
39089 + *(u8 *)&driver_data->flags |= CPUFREQ_CONST_LOOPS;
39090 + pax_close_kernel();
39091 + }
39092
39093 write_lock_irqsave(&cpufreq_driver_lock, flags);
39094 if (cpufreq_driver) {
39095 @@ -2356,8 +2363,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
39096 * Check if driver provides function to enable boost -
39097 * if not, use cpufreq_boost_set_sw as default
39098 */
39099 - if (!cpufreq_driver->set_boost)
39100 - cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39101 + if (!cpufreq_driver->set_boost) {
39102 + pax_open_kernel();
39103 + *(void **)&cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39104 + pax_close_kernel();
39105 + }
39106
39107 ret = cpufreq_sysfs_create_file(&boost.attr);
39108 if (ret) {
39109 diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
39110 index e1c6433..31203ae 100644
39111 --- a/drivers/cpufreq/cpufreq_governor.c
39112 +++ b/drivers/cpufreq/cpufreq_governor.c
39113 @@ -191,7 +191,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39114 struct dbs_data *dbs_data;
39115 struct od_cpu_dbs_info_s *od_dbs_info = NULL;
39116 struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
39117 - struct od_ops *od_ops = NULL;
39118 + const struct od_ops *od_ops = NULL;
39119 struct od_dbs_tuners *od_tuners = NULL;
39120 struct cs_dbs_tuners *cs_tuners = NULL;
39121 struct cpu_dbs_common_info *cpu_cdbs;
39122 @@ -257,7 +257,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39123
39124 if ((cdata->governor == GOV_CONSERVATIVE) &&
39125 (!policy->governor->initialized)) {
39126 - struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39127 + const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39128
39129 cpufreq_register_notifier(cs_ops->notifier_block,
39130 CPUFREQ_TRANSITION_NOTIFIER);
39131 @@ -277,7 +277,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39132
39133 if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
39134 (policy->governor->initialized == 1)) {
39135 - struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39136 + const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39137
39138 cpufreq_unregister_notifier(cs_ops->notifier_block,
39139 CPUFREQ_TRANSITION_NOTIFIER);
39140 diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
39141 index bfb9ae1..e1d3a7e 100644
39142 --- a/drivers/cpufreq/cpufreq_governor.h
39143 +++ b/drivers/cpufreq/cpufreq_governor.h
39144 @@ -205,7 +205,7 @@ struct common_dbs_data {
39145 void (*exit)(struct dbs_data *dbs_data);
39146
39147 /* Governor specific ops, see below */
39148 - void *gov_ops;
39149 + const void *gov_ops;
39150 };
39151
39152 /* Governor Per policy data */
39153 @@ -225,7 +225,7 @@ struct od_ops {
39154 unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
39155 unsigned int freq_next, unsigned int relation);
39156 void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq);
39157 -};
39158 +} __no_const;
39159
39160 struct cs_ops {
39161 struct notifier_block *notifier_block;
39162 diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
39163 index 18d4091..434be15 100644
39164 --- a/drivers/cpufreq/cpufreq_ondemand.c
39165 +++ b/drivers/cpufreq/cpufreq_ondemand.c
39166 @@ -521,7 +521,7 @@ static void od_exit(struct dbs_data *dbs_data)
39167
39168 define_get_cpu_dbs_routines(od_cpu_dbs_info);
39169
39170 -static struct od_ops od_ops = {
39171 +static struct od_ops od_ops __read_only = {
39172 .powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
39173 .powersave_bias_target = generic_powersave_bias_target,
39174 .freq_increase = dbs_freq_increase,
39175 @@ -576,14 +576,18 @@ void od_register_powersave_bias_handler(unsigned int (*f)
39176 (struct cpufreq_policy *, unsigned int, unsigned int),
39177 unsigned int powersave_bias)
39178 {
39179 - od_ops.powersave_bias_target = f;
39180 + pax_open_kernel();
39181 + *(void **)&od_ops.powersave_bias_target = f;
39182 + pax_close_kernel();
39183 od_set_powersave_bias(powersave_bias);
39184 }
39185 EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
39186
39187 void od_unregister_powersave_bias_handler(void)
39188 {
39189 - od_ops.powersave_bias_target = generic_powersave_bias_target;
39190 + pax_open_kernel();
39191 + *(void **)&od_ops.powersave_bias_target = generic_powersave_bias_target;
39192 + pax_close_kernel();
39193 od_set_powersave_bias(0);
39194 }
39195 EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
39196 diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
39197 index fcd0c92..7b736c2 100644
39198 --- a/drivers/cpufreq/intel_pstate.c
39199 +++ b/drivers/cpufreq/intel_pstate.c
39200 @@ -125,10 +125,10 @@ struct pstate_funcs {
39201 struct cpu_defaults {
39202 struct pstate_adjust_policy pid_policy;
39203 struct pstate_funcs funcs;
39204 -};
39205 +} __do_const;
39206
39207 static struct pstate_adjust_policy pid_params;
39208 -static struct pstate_funcs pstate_funcs;
39209 +static struct pstate_funcs *pstate_funcs;
39210
39211 struct perf_limits {
39212 int no_turbo;
39213 @@ -526,7 +526,7 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
39214
39215 cpu->pstate.current_pstate = pstate;
39216
39217 - pstate_funcs.set(cpu, pstate);
39218 + pstate_funcs->set(cpu, pstate);
39219 }
39220
39221 static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps)
39222 @@ -548,12 +548,12 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
39223 {
39224 sprintf(cpu->name, "Intel 2nd generation core");
39225
39226 - cpu->pstate.min_pstate = pstate_funcs.get_min();
39227 - cpu->pstate.max_pstate = pstate_funcs.get_max();
39228 - cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
39229 + cpu->pstate.min_pstate = pstate_funcs->get_min();
39230 + cpu->pstate.max_pstate = pstate_funcs->get_max();
39231 + cpu->pstate.turbo_pstate = pstate_funcs->get_turbo();
39232
39233 - if (pstate_funcs.get_vid)
39234 - pstate_funcs.get_vid(cpu);
39235 + if (pstate_funcs->get_vid)
39236 + pstate_funcs->get_vid(cpu);
39237 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
39238 }
39239
39240 @@ -838,9 +838,9 @@ static int intel_pstate_msrs_not_valid(void)
39241 rdmsrl(MSR_IA32_APERF, aperf);
39242 rdmsrl(MSR_IA32_MPERF, mperf);
39243
39244 - if (!pstate_funcs.get_max() ||
39245 - !pstate_funcs.get_min() ||
39246 - !pstate_funcs.get_turbo())
39247 + if (!pstate_funcs->get_max() ||
39248 + !pstate_funcs->get_min() ||
39249 + !pstate_funcs->get_turbo())
39250 return -ENODEV;
39251
39252 rdmsrl(MSR_IA32_APERF, tmp);
39253 @@ -854,7 +854,7 @@ static int intel_pstate_msrs_not_valid(void)
39254 return 0;
39255 }
39256
39257 -static void copy_pid_params(struct pstate_adjust_policy *policy)
39258 +static void copy_pid_params(const struct pstate_adjust_policy *policy)
39259 {
39260 pid_params.sample_rate_ms = policy->sample_rate_ms;
39261 pid_params.p_gain_pct = policy->p_gain_pct;
39262 @@ -866,11 +866,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy)
39263
39264 static void copy_cpu_funcs(struct pstate_funcs *funcs)
39265 {
39266 - pstate_funcs.get_max = funcs->get_max;
39267 - pstate_funcs.get_min = funcs->get_min;
39268 - pstate_funcs.get_turbo = funcs->get_turbo;
39269 - pstate_funcs.set = funcs->set;
39270 - pstate_funcs.get_vid = funcs->get_vid;
39271 + pstate_funcs = funcs;
39272 }
39273
39274 #if IS_ENABLED(CONFIG_ACPI)
39275 diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
39276 index 529cfd9..0e28fff 100644
39277 --- a/drivers/cpufreq/p4-clockmod.c
39278 +++ b/drivers/cpufreq/p4-clockmod.c
39279 @@ -134,10 +134,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
39280 case 0x0F: /* Core Duo */
39281 case 0x16: /* Celeron Core */
39282 case 0x1C: /* Atom */
39283 - p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39284 + pax_open_kernel();
39285 + *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39286 + pax_close_kernel();
39287 return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
39288 case 0x0D: /* Pentium M (Dothan) */
39289 - p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39290 + pax_open_kernel();
39291 + *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39292 + pax_close_kernel();
39293 /* fall through */
39294 case 0x09: /* Pentium M (Banias) */
39295 return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
39296 @@ -149,7 +153,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
39297
39298 /* on P-4s, the TSC runs with constant frequency independent whether
39299 * throttling is active or not. */
39300 - p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39301 + pax_open_kernel();
39302 + *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39303 + pax_close_kernel();
39304
39305 if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
39306 printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
39307 diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
39308 index 9bb42ba..b01b4a2 100644
39309 --- a/drivers/cpufreq/sparc-us3-cpufreq.c
39310 +++ b/drivers/cpufreq/sparc-us3-cpufreq.c
39311 @@ -18,14 +18,12 @@
39312 #include <asm/head.h>
39313 #include <asm/timer.h>
39314
39315 -static struct cpufreq_driver *cpufreq_us3_driver;
39316 -
39317 struct us3_freq_percpu_info {
39318 struct cpufreq_frequency_table table[4];
39319 };
39320
39321 /* Indexed by cpu number. */
39322 -static struct us3_freq_percpu_info *us3_freq_table;
39323 +static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
39324
39325 /* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled
39326 * in the Safari config register.
39327 @@ -156,16 +154,27 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
39328
39329 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
39330 {
39331 - if (cpufreq_us3_driver)
39332 - us3_freq_target(policy, 0);
39333 + us3_freq_target(policy, 0);
39334
39335 return 0;
39336 }
39337
39338 +static int __init us3_freq_init(void);
39339 +static void __exit us3_freq_exit(void);
39340 +
39341 +static struct cpufreq_driver cpufreq_us3_driver = {
39342 + .init = us3_freq_cpu_init,
39343 + .verify = cpufreq_generic_frequency_table_verify,
39344 + .target_index = us3_freq_target,
39345 + .get = us3_freq_get,
39346 + .exit = us3_freq_cpu_exit,
39347 + .name = "UltraSPARC-III",
39348 +
39349 +};
39350 +
39351 static int __init us3_freq_init(void)
39352 {
39353 unsigned long manuf, impl, ver;
39354 - int ret;
39355
39356 if (tlb_type != cheetah && tlb_type != cheetah_plus)
39357 return -ENODEV;
39358 @@ -178,55 +187,15 @@ static int __init us3_freq_init(void)
39359 (impl == CHEETAH_IMPL ||
39360 impl == CHEETAH_PLUS_IMPL ||
39361 impl == JAGUAR_IMPL ||
39362 - impl == PANTHER_IMPL)) {
39363 - struct cpufreq_driver *driver;
39364 -
39365 - ret = -ENOMEM;
39366 - driver = kzalloc(sizeof(*driver), GFP_KERNEL);
39367 - if (!driver)
39368 - goto err_out;
39369 -
39370 - us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
39371 - GFP_KERNEL);
39372 - if (!us3_freq_table)
39373 - goto err_out;
39374 -
39375 - driver->init = us3_freq_cpu_init;
39376 - driver->verify = cpufreq_generic_frequency_table_verify;
39377 - driver->target_index = us3_freq_target;
39378 - driver->get = us3_freq_get;
39379 - driver->exit = us3_freq_cpu_exit;
39380 - strcpy(driver->name, "UltraSPARC-III");
39381 -
39382 - cpufreq_us3_driver = driver;
39383 - ret = cpufreq_register_driver(driver);
39384 - if (ret)
39385 - goto err_out;
39386 -
39387 - return 0;
39388 -
39389 -err_out:
39390 - if (driver) {
39391 - kfree(driver);
39392 - cpufreq_us3_driver = NULL;
39393 - }
39394 - kfree(us3_freq_table);
39395 - us3_freq_table = NULL;
39396 - return ret;
39397 - }
39398 + impl == PANTHER_IMPL))
39399 + return cpufreq_register_driver(&cpufreq_us3_driver);
39400
39401 return -ENODEV;
39402 }
39403
39404 static void __exit us3_freq_exit(void)
39405 {
39406 - if (cpufreq_us3_driver) {
39407 - cpufreq_unregister_driver(cpufreq_us3_driver);
39408 - kfree(cpufreq_us3_driver);
39409 - cpufreq_us3_driver = NULL;
39410 - kfree(us3_freq_table);
39411 - us3_freq_table = NULL;
39412 - }
39413 + cpufreq_unregister_driver(&cpufreq_us3_driver);
39414 }
39415
39416 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
39417 diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
39418 index 6723f03..3465190 100644
39419 --- a/drivers/cpufreq/speedstep-centrino.c
39420 +++ b/drivers/cpufreq/speedstep-centrino.c
39421 @@ -351,8 +351,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
39422 !cpu_has(cpu, X86_FEATURE_EST))
39423 return -ENODEV;
39424
39425 - if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
39426 - centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
39427 + if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
39428 + pax_open_kernel();
39429 + *(u8 *)&centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
39430 + pax_close_kernel();
39431 + }
39432
39433 if (policy->cpu != 0)
39434 return -ENODEV;
39435 diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
39436 index 136d6a2..06e373d 100644
39437 --- a/drivers/cpuidle/driver.c
39438 +++ b/drivers/cpuidle/driver.c
39439 @@ -202,7 +202,7 @@ static int poll_idle(struct cpuidle_device *dev,
39440
39441 static void poll_idle_init(struct cpuidle_driver *drv)
39442 {
39443 - struct cpuidle_state *state = &drv->states[0];
39444 + cpuidle_state_no_const *state = &drv->states[0];
39445
39446 snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
39447 snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
39448 diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
39449 index ca89412..a7b9c49 100644
39450 --- a/drivers/cpuidle/governor.c
39451 +++ b/drivers/cpuidle/governor.c
39452 @@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
39453 mutex_lock(&cpuidle_lock);
39454 if (__cpuidle_find_governor(gov->name) == NULL) {
39455 ret = 0;
39456 - list_add_tail(&gov->governor_list, &cpuidle_governors);
39457 + pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
39458 if (!cpuidle_curr_governor ||
39459 cpuidle_curr_governor->rating < gov->rating)
39460 cpuidle_switch_governor(gov);
39461 diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
39462 index efe2f17..b8124f9 100644
39463 --- a/drivers/cpuidle/sysfs.c
39464 +++ b/drivers/cpuidle/sysfs.c
39465 @@ -135,7 +135,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
39466 NULL
39467 };
39468
39469 -static struct attribute_group cpuidle_attr_group = {
39470 +static attribute_group_no_const cpuidle_attr_group = {
39471 .attrs = cpuidle_default_attrs,
39472 .name = "cpuidle",
39473 };
39474 diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
39475 index 12fea3e..1e28f47 100644
39476 --- a/drivers/crypto/hifn_795x.c
39477 +++ b/drivers/crypto/hifn_795x.c
39478 @@ -51,7 +51,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
39479 MODULE_PARM_DESC(hifn_pll_ref,
39480 "PLL reference clock (pci[freq] or ext[freq], default ext)");
39481
39482 -static atomic_t hifn_dev_number;
39483 +static atomic_unchecked_t hifn_dev_number;
39484
39485 #define ACRYPTO_OP_DECRYPT 0
39486 #define ACRYPTO_OP_ENCRYPT 1
39487 @@ -2577,7 +2577,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
39488 goto err_out_disable_pci_device;
39489
39490 snprintf(name, sizeof(name), "hifn%d",
39491 - atomic_inc_return(&hifn_dev_number)-1);
39492 + atomic_inc_return_unchecked(&hifn_dev_number)-1);
39493
39494 err = pci_request_regions(pdev, name);
39495 if (err)
39496 diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
39497 index 2042ec3..a9ce67f 100644
39498 --- a/drivers/devfreq/devfreq.c
39499 +++ b/drivers/devfreq/devfreq.c
39500 @@ -616,7 +616,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
39501 goto err_out;
39502 }
39503
39504 - list_add(&governor->node, &devfreq_governor_list);
39505 + pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
39506
39507 list_for_each_entry(devfreq, &devfreq_list, node) {
39508 int ret = 0;
39509 @@ -704,7 +704,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
39510 }
39511 }
39512
39513 - list_del(&governor->node);
39514 + pax_list_del((struct list_head *)&governor->node);
39515 err_out:
39516 mutex_unlock(&devfreq_list_lock);
39517
39518 diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
39519 index 5239677..1cb71a8 100644
39520 --- a/drivers/dma/sh/shdma-base.c
39521 +++ b/drivers/dma/sh/shdma-base.c
39522 @@ -267,8 +267,8 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan)
39523 schan->slave_id = -EINVAL;
39524 }
39525
39526 - schan->desc = kcalloc(NR_DESCS_PER_CHANNEL,
39527 - sdev->desc_size, GFP_KERNEL);
39528 + schan->desc = kcalloc(sdev->desc_size,
39529 + NR_DESCS_PER_CHANNEL, GFP_KERNEL);
39530 if (!schan->desc) {
39531 ret = -ENOMEM;
39532 goto edescalloc;
39533 diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
39534 index dda7e75..0a4c867 100644
39535 --- a/drivers/dma/sh/shdmac.c
39536 +++ b/drivers/dma/sh/shdmac.c
39537 @@ -513,7 +513,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
39538 return ret;
39539 }
39540
39541 -static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
39542 +static struct notifier_block sh_dmae_nmi_notifier = {
39543 .notifier_call = sh_dmae_nmi_handler,
39544
39545 /* Run before NMI debug handler and KGDB */
39546 diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
39547 index 592af5f..bb1d583 100644
39548 --- a/drivers/edac/edac_device.c
39549 +++ b/drivers/edac/edac_device.c
39550 @@ -477,9 +477,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
39551 */
39552 int edac_device_alloc_index(void)
39553 {
39554 - static atomic_t device_indexes = ATOMIC_INIT(0);
39555 + static atomic_unchecked_t device_indexes = ATOMIC_INIT(0);
39556
39557 - return atomic_inc_return(&device_indexes) - 1;
39558 + return atomic_inc_return_unchecked(&device_indexes) - 1;
39559 }
39560 EXPORT_SYMBOL_GPL(edac_device_alloc_index);
39561
39562 diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
39563 index 01fae82..1dd8289 100644
39564 --- a/drivers/edac/edac_mc_sysfs.c
39565 +++ b/drivers/edac/edac_mc_sysfs.c
39566 @@ -152,7 +152,7 @@ static const char * const edac_caps[] = {
39567 struct dev_ch_attribute {
39568 struct device_attribute attr;
39569 int channel;
39570 -};
39571 +} __do_const;
39572
39573 #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
39574 struct dev_ch_attribute dev_attr_legacy_##_name = \
39575 @@ -1009,14 +1009,16 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
39576 }
39577
39578 if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
39579 + pax_open_kernel();
39580 if (mci->get_sdram_scrub_rate) {
39581 - dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
39582 - dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
39583 + *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
39584 + *(void **)&dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
39585 }
39586 if (mci->set_sdram_scrub_rate) {
39587 - dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
39588 - dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
39589 + *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
39590 + *(void **)&dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
39591 }
39592 + pax_close_kernel();
39593 err = device_create_file(&mci->dev,
39594 &dev_attr_sdram_scrub_rate);
39595 if (err) {
39596 diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
39597 index 2cf44b4d..6dd2dc7 100644
39598 --- a/drivers/edac/edac_pci.c
39599 +++ b/drivers/edac/edac_pci.c
39600 @@ -29,7 +29,7 @@
39601
39602 static DEFINE_MUTEX(edac_pci_ctls_mutex);
39603 static LIST_HEAD(edac_pci_list);
39604 -static atomic_t pci_indexes = ATOMIC_INIT(0);
39605 +static atomic_unchecked_t pci_indexes = ATOMIC_INIT(0);
39606
39607 /*
39608 * edac_pci_alloc_ctl_info
39609 @@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);
39610 */
39611 int edac_pci_alloc_index(void)
39612 {
39613 - return atomic_inc_return(&pci_indexes) - 1;
39614 + return atomic_inc_return_unchecked(&pci_indexes) - 1;
39615 }
39616 EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
39617
39618 diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
39619 index e8658e4..22746d6 100644
39620 --- a/drivers/edac/edac_pci_sysfs.c
39621 +++ b/drivers/edac/edac_pci_sysfs.c
39622 @@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */
39623 static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
39624 static int edac_pci_poll_msec = 1000; /* one second workq period */
39625
39626 -static atomic_t pci_parity_count = ATOMIC_INIT(0);
39627 -static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
39628 +static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
39629 +static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
39630
39631 static struct kobject *edac_pci_top_main_kobj;
39632 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
39633 @@ -235,7 +235,7 @@ struct edac_pci_dev_attribute {
39634 void *value;
39635 ssize_t(*show) (void *, char *);
39636 ssize_t(*store) (void *, const char *, size_t);
39637 -};
39638 +} __do_const;
39639
39640 /* Set of show/store abstract level functions for PCI Parity object */
39641 static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
39642 @@ -579,7 +579,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39643 edac_printk(KERN_CRIT, EDAC_PCI,
39644 "Signaled System Error on %s\n",
39645 pci_name(dev));
39646 - atomic_inc(&pci_nonparity_count);
39647 + atomic_inc_unchecked(&pci_nonparity_count);
39648 }
39649
39650 if (status & (PCI_STATUS_PARITY)) {
39651 @@ -587,7 +587,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39652 "Master Data Parity Error on %s\n",
39653 pci_name(dev));
39654
39655 - atomic_inc(&pci_parity_count);
39656 + atomic_inc_unchecked(&pci_parity_count);
39657 }
39658
39659 if (status & (PCI_STATUS_DETECTED_PARITY)) {
39660 @@ -595,7 +595,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39661 "Detected Parity Error on %s\n",
39662 pci_name(dev));
39663
39664 - atomic_inc(&pci_parity_count);
39665 + atomic_inc_unchecked(&pci_parity_count);
39666 }
39667 }
39668
39669 @@ -618,7 +618,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39670 edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
39671 "Signaled System Error on %s\n",
39672 pci_name(dev));
39673 - atomic_inc(&pci_nonparity_count);
39674 + atomic_inc_unchecked(&pci_nonparity_count);
39675 }
39676
39677 if (status & (PCI_STATUS_PARITY)) {
39678 @@ -626,7 +626,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39679 "Master Data Parity Error on "
39680 "%s\n", pci_name(dev));
39681
39682 - atomic_inc(&pci_parity_count);
39683 + atomic_inc_unchecked(&pci_parity_count);
39684 }
39685
39686 if (status & (PCI_STATUS_DETECTED_PARITY)) {
39687 @@ -634,7 +634,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
39688 "Detected Parity Error on %s\n",
39689 pci_name(dev));
39690
39691 - atomic_inc(&pci_parity_count);
39692 + atomic_inc_unchecked(&pci_parity_count);
39693 }
39694 }
39695 }
39696 @@ -672,7 +672,7 @@ void edac_pci_do_parity_check(void)
39697 if (!check_pci_errors)
39698 return;
39699
39700 - before_count = atomic_read(&pci_parity_count);
39701 + before_count = atomic_read_unchecked(&pci_parity_count);
39702
39703 /* scan all PCI devices looking for a Parity Error on devices and
39704 * bridges.
39705 @@ -684,7 +684,7 @@ void edac_pci_do_parity_check(void)
39706 /* Only if operator has selected panic on PCI Error */
39707 if (edac_pci_get_panic_on_pe()) {
39708 /* If the count is different 'after' from 'before' */
39709 - if (before_count != atomic_read(&pci_parity_count))
39710 + if (before_count != atomic_read_unchecked(&pci_parity_count))
39711 panic("EDAC: PCI Parity Error");
39712 }
39713 }
39714 diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
39715 index 51b7e3a..aa8a3e8 100644
39716 --- a/drivers/edac/mce_amd.h
39717 +++ b/drivers/edac/mce_amd.h
39718 @@ -77,7 +77,7 @@ struct amd_decoder_ops {
39719 bool (*mc0_mce)(u16, u8);
39720 bool (*mc1_mce)(u16, u8);
39721 bool (*mc2_mce)(u16, u8);
39722 -};
39723 +} __no_const;
39724
39725 void amd_report_gart_errors(bool);
39726 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
39727 diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
39728 index 57ea7f4..af06b76 100644
39729 --- a/drivers/firewire/core-card.c
39730 +++ b/drivers/firewire/core-card.c
39731 @@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
39732 const struct fw_card_driver *driver,
39733 struct device *device)
39734 {
39735 - static atomic_t index = ATOMIC_INIT(-1);
39736 + static atomic_unchecked_t index = ATOMIC_INIT(-1);
39737
39738 - card->index = atomic_inc_return(&index);
39739 + card->index = atomic_inc_return_unchecked(&index);
39740 card->driver = driver;
39741 card->device = device;
39742 card->current_tlabel = 0;
39743 @@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
39744
39745 void fw_core_remove_card(struct fw_card *card)
39746 {
39747 - struct fw_card_driver dummy_driver = dummy_driver_template;
39748 + fw_card_driver_no_const dummy_driver = dummy_driver_template;
39749
39750 card->driver->update_phy_reg(card, 4,
39751 PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
39752 diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
39753 index 2c6d5e1..a2cca6b 100644
39754 --- a/drivers/firewire/core-device.c
39755 +++ b/drivers/firewire/core-device.c
39756 @@ -253,7 +253,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
39757 struct config_rom_attribute {
39758 struct device_attribute attr;
39759 u32 key;
39760 -};
39761 +} __do_const;
39762
39763 static ssize_t show_immediate(struct device *dev,
39764 struct device_attribute *dattr, char *buf)
39765 diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
39766 index eb6935c..3cc2bfa 100644
39767 --- a/drivers/firewire/core-transaction.c
39768 +++ b/drivers/firewire/core-transaction.c
39769 @@ -38,6 +38,7 @@
39770 #include <linux/timer.h>
39771 #include <linux/types.h>
39772 #include <linux/workqueue.h>
39773 +#include <linux/sched.h>
39774
39775 #include <asm/byteorder.h>
39776
39777 diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
39778 index f477308..2795f24 100644
39779 --- a/drivers/firewire/core.h
39780 +++ b/drivers/firewire/core.h
39781 @@ -111,6 +111,7 @@ struct fw_card_driver {
39782
39783 int (*stop_iso)(struct fw_iso_context *ctx);
39784 };
39785 +typedef struct fw_card_driver __no_const fw_card_driver_no_const;
39786
39787 void fw_card_initialize(struct fw_card *card,
39788 const struct fw_card_driver *driver, struct device *device);
39789 diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
39790 index 586f2f7..3545ad2 100644
39791 --- a/drivers/firewire/ohci.c
39792 +++ b/drivers/firewire/ohci.c
39793 @@ -2049,10 +2049,12 @@ static void bus_reset_work(struct work_struct *work)
39794 be32_to_cpu(ohci->next_header));
39795 }
39796
39797 +#ifndef CONFIG_GRKERNSEC
39798 if (param_remote_dma) {
39799 reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
39800 reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
39801 }
39802 +#endif
39803
39804 spin_unlock_irq(&ohci->lock);
39805
39806 @@ -2584,8 +2586,10 @@ static int ohci_enable_phys_dma(struct fw_card *card,
39807 unsigned long flags;
39808 int n, ret = 0;
39809
39810 +#ifndef CONFIG_GRKERNSEC
39811 if (param_remote_dma)
39812 return 0;
39813 +#endif
39814
39815 /*
39816 * FIXME: Make sure this bitmask is cleared when we clear the busReset
39817 diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
39818 index 94a58a0..f5eba42 100644
39819 --- a/drivers/firmware/dmi-id.c
39820 +++ b/drivers/firmware/dmi-id.c
39821 @@ -16,7 +16,7 @@
39822 struct dmi_device_attribute{
39823 struct device_attribute dev_attr;
39824 int field;
39825 -};
39826 +} __do_const;
39827 #define to_dmi_dev_attr(_dev_attr) \
39828 container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
39829
39830 diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
39831 index 17afc51..0ef90cd 100644
39832 --- a/drivers/firmware/dmi_scan.c
39833 +++ b/drivers/firmware/dmi_scan.c
39834 @@ -835,7 +835,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
39835 if (buf == NULL)
39836 return -1;
39837
39838 - dmi_table(buf, dmi_len, dmi_num, decode, private_data);
39839 + dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data);
39840
39841 dmi_unmap(buf);
39842 return 0;
39843 diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
39844 index 1491dd4..aa910db 100644
39845 --- a/drivers/firmware/efi/cper.c
39846 +++ b/drivers/firmware/efi/cper.c
39847 @@ -41,12 +41,12 @@
39848 */
39849 u64 cper_next_record_id(void)
39850 {
39851 - static atomic64_t seq;
39852 + static atomic64_unchecked_t seq;
39853
39854 - if (!atomic64_read(&seq))
39855 - atomic64_set(&seq, ((u64)get_seconds()) << 32);
39856 + if (!atomic64_read_unchecked(&seq))
39857 + atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
39858
39859 - return atomic64_inc_return(&seq);
39860 + return atomic64_inc_return_unchecked(&seq);
39861 }
39862 EXPORT_SYMBOL_GPL(cper_next_record_id);
39863
39864 diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
39865 index af20f17..4e4e545 100644
39866 --- a/drivers/firmware/efi/efi.c
39867 +++ b/drivers/firmware/efi/efi.c
39868 @@ -120,14 +120,16 @@ static struct attribute_group efi_subsys_attr_group = {
39869 };
39870
39871 static struct efivars generic_efivars;
39872 -static struct efivar_operations generic_ops;
39873 +static efivar_operations_no_const generic_ops __read_only;
39874
39875 static int generic_ops_register(void)
39876 {
39877 - generic_ops.get_variable = efi.get_variable;
39878 - generic_ops.set_variable = efi.set_variable;
39879 - generic_ops.get_next_variable = efi.get_next_variable;
39880 - generic_ops.query_variable_store = efi_query_variable_store;
39881 + pax_open_kernel();
39882 + *(void **)&generic_ops.get_variable = efi.get_variable;
39883 + *(void **)&generic_ops.set_variable = efi.set_variable;
39884 + *(void **)&generic_ops.get_next_variable = efi.get_next_variable;
39885 + *(void **)&generic_ops.query_variable_store = efi_query_variable_store;
39886 + pax_close_kernel();
39887
39888 return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
39889 }
39890 diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
39891 index 50ea412..caccd6e9 100644
39892 --- a/drivers/firmware/efi/efivars.c
39893 +++ b/drivers/firmware/efi/efivars.c
39894 @@ -456,7 +456,7 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
39895 static int
39896 create_efivars_bin_attributes(void)
39897 {
39898 - struct bin_attribute *attr;
39899 + bin_attribute_no_const *attr;
39900 int error;
39901
39902 /* new_var */
39903 diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
39904 index 2f569aa..c95f4fb 100644
39905 --- a/drivers/firmware/google/memconsole.c
39906 +++ b/drivers/firmware/google/memconsole.c
39907 @@ -155,7 +155,10 @@ static int __init memconsole_init(void)
39908 if (!found_memconsole())
39909 return -ENODEV;
39910
39911 - memconsole_bin_attr.size = memconsole_length;
39912 + pax_open_kernel();
39913 + *(size_t *)&memconsole_bin_attr.size = memconsole_length;
39914 + pax_close_kernel();
39915 +
39916 return sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
39917 }
39918
39919 diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
39920 index 8765bd6..2e5b147 100644
39921 --- a/drivers/gpio/gpio-em.c
39922 +++ b/drivers/gpio/gpio-em.c
39923 @@ -278,7 +278,7 @@ static int em_gio_probe(struct platform_device *pdev)
39924 struct em_gio_priv *p;
39925 struct resource *io[2], *irq[2];
39926 struct gpio_chip *gpio_chip;
39927 - struct irq_chip *irq_chip;
39928 + irq_chip_no_const *irq_chip;
39929 const char *name = dev_name(&pdev->dev);
39930 int ret;
39931
39932 diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
39933 index 7030422..42a3fe9 100644
39934 --- a/drivers/gpio/gpio-ich.c
39935 +++ b/drivers/gpio/gpio-ich.c
39936 @@ -94,7 +94,7 @@ struct ichx_desc {
39937 * this option allows driver caching written output values
39938 */
39939 bool use_outlvl_cache;
39940 -};
39941 +} __do_const;
39942
39943 static struct {
39944 spinlock_t lock;
39945 diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
39946 index 03c9148..c66e753 100644
39947 --- a/drivers/gpio/gpio-rcar.c
39948 +++ b/drivers/gpio/gpio-rcar.c
39949 @@ -355,7 +355,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
39950 struct gpio_rcar_priv *p;
39951 struct resource *io, *irq;
39952 struct gpio_chip *gpio_chip;
39953 - struct irq_chip *irq_chip;
39954 + irq_chip_no_const *irq_chip;
39955 struct device *dev = &pdev->dev;
39956 const char *name = dev_name(dev);
39957 int ret;
39958 diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
39959 index 66cbcc1..0c5e622 100644
39960 --- a/drivers/gpio/gpio-vr41xx.c
39961 +++ b/drivers/gpio/gpio-vr41xx.c
39962 @@ -224,7 +224,7 @@ static int giu_get_irq(unsigned int irq)
39963 printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
39964 maskl, pendl, maskh, pendh);
39965
39966 - atomic_inc(&irq_err_count);
39967 + atomic_inc_unchecked(&irq_err_count);
39968
39969 return -EINVAL;
39970 }
39971 diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
39972 index d8b7099..8a314a5 100644
39973 --- a/drivers/gpu/drm/drm_crtc.c
39974 +++ b/drivers/gpu/drm/drm_crtc.c
39975 @@ -3500,7 +3500,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
39976 goto done;
39977 }
39978
39979 - if (copy_to_user(&enum_ptr[copied].name,
39980 + if (copy_to_user(enum_ptr[copied].name,
39981 &prop_enum->name, DRM_PROP_NAME_LEN)) {
39982 ret = -EFAULT;
39983 goto done;
39984 diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
39985 old mode 100644
39986 new mode 100755
39987 index 8218078..9960928a
39988 --- a/drivers/gpu/drm/drm_drv.c
39989 +++ b/drivers/gpu/drm/drm_drv.c
39990 @@ -233,7 +233,7 @@ module_exit(drm_core_exit);
39991 /**
39992 * Copy and IOCTL return string to user space
39993 */
39994 -static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
39995 +static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
39996 {
39997 int len;
39998
39999 @@ -342,7 +342,7 @@ long drm_ioctl(struct file *filp,
40000 struct drm_file *file_priv = filp->private_data;
40001 struct drm_device *dev;
40002 const struct drm_ioctl_desc *ioctl = NULL;
40003 - drm_ioctl_t *func;
40004 + drm_ioctl_no_const_t func;
40005 unsigned int nr = DRM_IOCTL_NR(cmd);
40006 int retcode = -EINVAL;
40007 char stack_kdata[128];
40008 diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
40009 index e1eba0b..98f69f9 100644
40010 --- a/drivers/gpu/drm/drm_fops.c
40011 +++ b/drivers/gpu/drm/drm_fops.c
40012 @@ -89,7 +89,7 @@ int drm_open(struct inode *inode, struct file *filp)
40013 return PTR_ERR(minor);
40014
40015 dev = minor->dev;
40016 - if (!dev->open_count++)
40017 + if (local_inc_return(&dev->open_count) == 1)
40018 need_setup = 1;
40019
40020 /* share address_space across all char-devs of a single device */
40021 @@ -106,7 +106,7 @@ int drm_open(struct inode *inode, struct file *filp)
40022 return 0;
40023
40024 err_undo:
40025 - dev->open_count--;
40026 + local_dec(&dev->open_count);
40027 drm_minor_release(minor);
40028 return retcode;
40029 }
40030 @@ -430,7 +430,7 @@ int drm_release(struct inode *inode, struct file *filp)
40031
40032 mutex_lock(&drm_global_mutex);
40033
40034 - DRM_DEBUG("open_count = %d\n", dev->open_count);
40035 + DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
40036
40037 if (dev->driver->preclose)
40038 dev->driver->preclose(dev, file_priv);
40039 @@ -439,10 +439,10 @@ int drm_release(struct inode *inode, struct file *filp)
40040 * Begin inline drm_release
40041 */
40042
40043 - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
40044 + DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
40045 task_pid_nr(current),
40046 (long)old_encode_dev(file_priv->minor->kdev->devt),
40047 - dev->open_count);
40048 + local_read(&dev->open_count));
40049
40050 /* Release any auth tokens that might point to this file_priv,
40051 (do that under the drm_global_mutex) */
40052 @@ -543,7 +543,7 @@ int drm_release(struct inode *inode, struct file *filp)
40053 * End inline drm_release
40054 */
40055
40056 - if (!--dev->open_count) {
40057 + if (local_dec_and_test(&dev->open_count)) {
40058 retcode = drm_lastclose(dev);
40059 if (drm_device_is_unplugged(dev))
40060 drm_put_dev(dev);
40061 diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
40062 index 3d2e91c..d31c4c9 100644
40063 --- a/drivers/gpu/drm/drm_global.c
40064 +++ b/drivers/gpu/drm/drm_global.c
40065 @@ -36,7 +36,7 @@
40066 struct drm_global_item {
40067 struct mutex mutex;
40068 void *object;
40069 - int refcount;
40070 + atomic_t refcount;
40071 };
40072
40073 static struct drm_global_item glob[DRM_GLOBAL_NUM];
40074 @@ -49,7 +49,7 @@ void drm_global_init(void)
40075 struct drm_global_item *item = &glob[i];
40076 mutex_init(&item->mutex);
40077 item->object = NULL;
40078 - item->refcount = 0;
40079 + atomic_set(&item->refcount, 0);
40080 }
40081 }
40082
40083 @@ -59,7 +59,7 @@ void drm_global_release(void)
40084 for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
40085 struct drm_global_item *item = &glob[i];
40086 BUG_ON(item->object != NULL);
40087 - BUG_ON(item->refcount != 0);
40088 + BUG_ON(atomic_read(&item->refcount) != 0);
40089 }
40090 }
40091
40092 @@ -69,7 +69,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
40093 struct drm_global_item *item = &glob[ref->global_type];
40094
40095 mutex_lock(&item->mutex);
40096 - if (item->refcount == 0) {
40097 + if (atomic_read(&item->refcount) == 0) {
40098 item->object = kzalloc(ref->size, GFP_KERNEL);
40099 if (unlikely(item->object == NULL)) {
40100 ret = -ENOMEM;
40101 @@ -82,7 +82,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
40102 goto out_err;
40103
40104 }
40105 - ++item->refcount;
40106 + atomic_inc(&item->refcount);
40107 ref->object = item->object;
40108 mutex_unlock(&item->mutex);
40109 return 0;
40110 @@ -98,9 +98,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
40111 struct drm_global_item *item = &glob[ref->global_type];
40112
40113 mutex_lock(&item->mutex);
40114 - BUG_ON(item->refcount == 0);
40115 + BUG_ON(atomic_read(&item->refcount) == 0);
40116 BUG_ON(ref->object != item->object);
40117 - if (--item->refcount == 0) {
40118 + if (atomic_dec_and_test(&item->refcount)) {
40119 ref->release(ref);
40120 item->object = NULL;
40121 }
40122 diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
40123 index 7473035..a48b9c5 100644
40124 --- a/drivers/gpu/drm/drm_info.c
40125 +++ b/drivers/gpu/drm/drm_info.c
40126 @@ -75,10 +75,13 @@ int drm_vm_info(struct seq_file *m, void *data)
40127 struct drm_local_map *map;
40128 struct drm_map_list *r_list;
40129
40130 - /* Hardcoded from _DRM_FRAME_BUFFER,
40131 - _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
40132 - _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
40133 - const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
40134 + static const char * const types[] = {
40135 + [_DRM_FRAME_BUFFER] = "FB",
40136 + [_DRM_REGISTERS] = "REG",
40137 + [_DRM_SHM] = "SHM",
40138 + [_DRM_AGP] = "AGP",
40139 + [_DRM_SCATTER_GATHER] = "SG",
40140 + [_DRM_CONSISTENT] = "PCI"};
40141 const char *type;
40142 int i;
40143
40144 @@ -89,7 +92,7 @@ int drm_vm_info(struct seq_file *m, void *data)
40145 map = r_list->map;
40146 if (!map)
40147 continue;
40148 - if (map->type < 0 || map->type > 5)
40149 + if (map->type >= ARRAY_SIZE(types))
40150 type = "??";
40151 else
40152 type = types[map->type];
40153 @@ -261,7 +264,11 @@ int drm_vma_info(struct seq_file *m, void *data)
40154 vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
40155 vma->vm_flags & VM_LOCKED ? 'l' : '-',
40156 vma->vm_flags & VM_IO ? 'i' : '-',
40157 +#ifdef CONFIG_GRKERNSEC_HIDESYM
40158 + 0);
40159 +#else
40160 vma->vm_pgoff);
40161 +#endif
40162
40163 #if defined(__i386__)
40164 pgprot = pgprot_val(vma->vm_page_prot);
40165 diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
40166 index 2f4c4343..dd12cd2 100644
40167 --- a/drivers/gpu/drm/drm_ioc32.c
40168 +++ b/drivers/gpu/drm/drm_ioc32.c
40169 @@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
40170 request = compat_alloc_user_space(nbytes);
40171 if (!access_ok(VERIFY_WRITE, request, nbytes))
40172 return -EFAULT;
40173 - list = (struct drm_buf_desc *) (request + 1);
40174 + list = (struct drm_buf_desc __user *) (request + 1);
40175
40176 if (__put_user(count, &request->count)
40177 || __put_user(list, &request->list))
40178 @@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
40179 request = compat_alloc_user_space(nbytes);
40180 if (!access_ok(VERIFY_WRITE, request, nbytes))
40181 return -EFAULT;
40182 - list = (struct drm_buf_pub *) (request + 1);
40183 + list = (struct drm_buf_pub __user *) (request + 1);
40184
40185 if (__put_user(count, &request->count)
40186 || __put_user(list, &request->list))
40187 @@ -1016,7 +1016,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
40188 return 0;
40189 }
40190
40191 -drm_ioctl_compat_t *drm_compat_ioctls[] = {
40192 +drm_ioctl_compat_t drm_compat_ioctls[] = {
40193 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
40194 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
40195 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
40196 @@ -1062,7 +1062,6 @@ drm_ioctl_compat_t *drm_compat_ioctls[] = {
40197 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40198 {
40199 unsigned int nr = DRM_IOCTL_NR(cmd);
40200 - drm_ioctl_compat_t *fn;
40201 int ret;
40202
40203 /* Assume that ioctls without an explicit compat routine will just
40204 @@ -1072,10 +1071,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40205 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
40206 return drm_ioctl(filp, cmd, arg);
40207
40208 - fn = drm_compat_ioctls[nr];
40209 -
40210 - if (fn != NULL)
40211 - ret = (*fn) (filp, cmd, arg);
40212 + if (drm_compat_ioctls[nr] != NULL)
40213 + ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
40214 else
40215 ret = drm_ioctl(filp, cmd, arg);
40216
40217 diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
40218 index 4c24c3a..c903cab 100644
40219 --- a/drivers/gpu/drm/drm_stub.c
40220 +++ b/drivers/gpu/drm/drm_stub.c
40221 @@ -455,7 +455,7 @@ void drm_unplug_dev(struct drm_device *dev)
40222
40223 drm_device_set_unplugged(dev);
40224
40225 - if (dev->open_count == 0) {
40226 + if (local_read(&dev->open_count) == 0) {
40227 drm_put_dev(dev);
40228 }
40229 mutex_unlock(&drm_global_mutex);
40230 diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
40231 index c22c309..ae758c3 100644
40232 --- a/drivers/gpu/drm/drm_sysfs.c
40233 +++ b/drivers/gpu/drm/drm_sysfs.c
40234 @@ -505,7 +505,7 @@ static void drm_sysfs_release(struct device *dev)
40235 */
40236 int drm_sysfs_device_add(struct drm_minor *minor)
40237 {
40238 - char *minor_str;
40239 + const char *minor_str;
40240 int r;
40241
40242 if (minor->type == DRM_MINOR_CONTROL)
40243 diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
40244 index d4d16ed..8fb0b51 100644
40245 --- a/drivers/gpu/drm/i810/i810_drv.h
40246 +++ b/drivers/gpu/drm/i810/i810_drv.h
40247 @@ -108,8 +108,8 @@ typedef struct drm_i810_private {
40248 int page_flipping;
40249
40250 wait_queue_head_t irq_queue;
40251 - atomic_t irq_received;
40252 - atomic_t irq_emitted;
40253 + atomic_unchecked_t irq_received;
40254 + atomic_unchecked_t irq_emitted;
40255
40256 int front_offset;
40257 } drm_i810_private_t;
40258 diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
40259 index eedb023..25076a4 100644
40260 --- a/drivers/gpu/drm/i915/i915_dma.c
40261 +++ b/drivers/gpu/drm/i915/i915_dma.c
40262 @@ -1280,7 +1280,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
40263 bool can_switch;
40264
40265 spin_lock(&dev->count_lock);
40266 - can_switch = (dev->open_count == 0);
40267 + can_switch = (local_read(&dev->open_count) == 0);
40268 spin_unlock(&dev->count_lock);
40269 return can_switch;
40270 }
40271 diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
40272 index 20fef6c..76c78fb 100644
40273 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
40274 +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
40275 @@ -886,9 +886,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
40276
40277 static int
40278 validate_exec_list(struct drm_i915_gem_exec_object2 *exec,
40279 - int count)
40280 + unsigned int count)
40281 {
40282 - int i;
40283 + unsigned int i;
40284 unsigned relocs_total = 0;
40285 unsigned relocs_max = UINT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
40286
40287 diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
40288 index 3c59584..500f2e9 100644
40289 --- a/drivers/gpu/drm/i915/i915_ioc32.c
40290 +++ b/drivers/gpu/drm/i915/i915_ioc32.c
40291 @@ -181,7 +181,7 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
40292 (unsigned long)request);
40293 }
40294
40295 -static drm_ioctl_compat_t *i915_compat_ioctls[] = {
40296 +static drm_ioctl_compat_t i915_compat_ioctls[] = {
40297 [DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
40298 [DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
40299 [DRM_I915_GETPARAM] = compat_i915_getparam,
40300 @@ -202,18 +202,15 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
40301 long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40302 {
40303 unsigned int nr = DRM_IOCTL_NR(cmd);
40304 - drm_ioctl_compat_t *fn = NULL;
40305 int ret;
40306
40307 if (nr < DRM_COMMAND_BASE)
40308 return drm_compat_ioctl(filp, cmd, arg);
40309
40310 - if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
40311 - fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
40312 -
40313 - if (fn != NULL)
40314 + if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls)) {
40315 + drm_ioctl_compat_t fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
40316 ret = (*fn) (filp, cmd, arg);
40317 - else
40318 + } else
40319 ret = drm_ioctl(filp, cmd, arg);
40320
40321 return ret;
40322 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
40323 index 5b60e25..eac1625 100644
40324 --- a/drivers/gpu/drm/i915/intel_display.c
40325 +++ b/drivers/gpu/drm/i915/intel_display.c
40326 @@ -11171,13 +11171,13 @@ struct intel_quirk {
40327 int subsystem_vendor;
40328 int subsystem_device;
40329 void (*hook)(struct drm_device *dev);
40330 -};
40331 +} __do_const;
40332
40333 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
40334 struct intel_dmi_quirk {
40335 void (*hook)(struct drm_device *dev);
40336 const struct dmi_system_id (*dmi_id_list)[];
40337 -};
40338 +} __do_const;
40339
40340 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
40341 {
40342 @@ -11185,18 +11185,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
40343 return 1;
40344 }
40345
40346 -static const struct intel_dmi_quirk intel_dmi_quirks[] = {
40347 +static const struct dmi_system_id intel_dmi_quirks_table[] = {
40348 {
40349 - .dmi_id_list = &(const struct dmi_system_id[]) {
40350 - {
40351 - .callback = intel_dmi_reverse_brightness,
40352 - .ident = "NCR Corporation",
40353 - .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
40354 - DMI_MATCH(DMI_PRODUCT_NAME, ""),
40355 - },
40356 - },
40357 - { } /* terminating entry */
40358 + .callback = intel_dmi_reverse_brightness,
40359 + .ident = "NCR Corporation",
40360 + .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
40361 + DMI_MATCH(DMI_PRODUCT_NAME, ""),
40362 },
40363 + },
40364 + { } /* terminating entry */
40365 +};
40366 +
40367 +static const struct intel_dmi_quirk intel_dmi_quirks[] = {
40368 + {
40369 + .dmi_id_list = &intel_dmi_quirks_table,
40370 .hook = quirk_invert_brightness,
40371 },
40372 };
40373 diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
40374 index fe45321..836fdca 100644
40375 --- a/drivers/gpu/drm/mga/mga_drv.h
40376 +++ b/drivers/gpu/drm/mga/mga_drv.h
40377 @@ -120,9 +120,9 @@ typedef struct drm_mga_private {
40378 u32 clear_cmd;
40379 u32 maccess;
40380
40381 - atomic_t vbl_received; /**< Number of vblanks received. */
40382 + atomic_unchecked_t vbl_received; /**< Number of vblanks received. */
40383 wait_queue_head_t fence_queue;
40384 - atomic_t last_fence_retired;
40385 + atomic_unchecked_t last_fence_retired;
40386 u32 next_fence_to_post;
40387
40388 unsigned int fb_cpp;
40389 diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
40390 index 86b4bb8..ae237ad 100644
40391 --- a/drivers/gpu/drm/mga/mga_ioc32.c
40392 +++ b/drivers/gpu/drm/mga/mga_ioc32.c
40393 @@ -190,7 +190,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
40394 return 0;
40395 }
40396
40397 -drm_ioctl_compat_t *mga_compat_ioctls[] = {
40398 +drm_ioctl_compat_t mga_compat_ioctls[] = {
40399 [DRM_MGA_INIT] = compat_mga_init,
40400 [DRM_MGA_GETPARAM] = compat_mga_getparam,
40401 [DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
40402 @@ -208,18 +208,15 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
40403 long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40404 {
40405 unsigned int nr = DRM_IOCTL_NR(cmd);
40406 - drm_ioctl_compat_t *fn = NULL;
40407 int ret;
40408
40409 if (nr < DRM_COMMAND_BASE)
40410 return drm_compat_ioctl(filp, cmd, arg);
40411
40412 - if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
40413 - fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
40414 -
40415 - if (fn != NULL)
40416 + if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls)) {
40417 + drm_ioctl_compat_t fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
40418 ret = (*fn) (filp, cmd, arg);
40419 - else
40420 + } else
40421 ret = drm_ioctl(filp, cmd, arg);
40422
40423 return ret;
40424 diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
40425 index 1b071b8..de8601a 100644
40426 --- a/drivers/gpu/drm/mga/mga_irq.c
40427 +++ b/drivers/gpu/drm/mga/mga_irq.c
40428 @@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
40429 if (crtc != 0)
40430 return 0;
40431
40432 - return atomic_read(&dev_priv->vbl_received);
40433 + return atomic_read_unchecked(&dev_priv->vbl_received);
40434 }
40435
40436
40437 @@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
40438 /* VBLANK interrupt */
40439 if (status & MGA_VLINEPEN) {
40440 MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
40441 - atomic_inc(&dev_priv->vbl_received);
40442 + atomic_inc_unchecked(&dev_priv->vbl_received);
40443 drm_handle_vblank(dev, 0);
40444 handled = 1;
40445 }
40446 @@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
40447 if ((prim_start & ~0x03) != (prim_end & ~0x03))
40448 MGA_WRITE(MGA_PRIMEND, prim_end);
40449
40450 - atomic_inc(&dev_priv->last_fence_retired);
40451 + atomic_inc_unchecked(&dev_priv->last_fence_retired);
40452 wake_up(&dev_priv->fence_queue);
40453 handled = 1;
40454 }
40455 @@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
40456 * using fences.
40457 */
40458 DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
40459 - (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
40460 + (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
40461 - *sequence) <= (1 << 23)));
40462
40463 *sequence = cur_fence;
40464 diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
40465 index 8268a4c..5105708 100644
40466 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c
40467 +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
40468 @@ -965,7 +965,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
40469 struct bit_table {
40470 const char id;
40471 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
40472 -};
40473 +} __no_const;
40474
40475 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
40476
40477 diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
40478 index 7efbafa..19f8087 100644
40479 --- a/drivers/gpu/drm/nouveau/nouveau_drm.h
40480 +++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
40481 @@ -97,7 +97,6 @@ struct nouveau_drm {
40482 struct drm_global_reference mem_global_ref;
40483 struct ttm_bo_global_ref bo_global_ref;
40484 struct ttm_bo_device bdev;
40485 - atomic_t validate_sequence;
40486 int (*move)(struct nouveau_channel *,
40487 struct ttm_buffer_object *,
40488 struct ttm_mem_reg *, struct ttm_mem_reg *);
40489 diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
40490 index c1a7e5a..38b8539 100644
40491 --- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
40492 +++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
40493 @@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
40494 unsigned long arg)
40495 {
40496 unsigned int nr = DRM_IOCTL_NR(cmd);
40497 - drm_ioctl_compat_t *fn = NULL;
40498 + drm_ioctl_compat_t fn = NULL;
40499 int ret;
40500
40501 if (nr < DRM_COMMAND_BASE)
40502 diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
40503 index ab0228f..20b756b 100644
40504 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
40505 +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
40506 @@ -130,11 +130,11 @@ nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
40507 }
40508
40509 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
40510 - nouveau_vram_manager_init,
40511 - nouveau_vram_manager_fini,
40512 - nouveau_vram_manager_new,
40513 - nouveau_vram_manager_del,
40514 - nouveau_vram_manager_debug
40515 + .init = nouveau_vram_manager_init,
40516 + .takedown = nouveau_vram_manager_fini,
40517 + .get_node = nouveau_vram_manager_new,
40518 + .put_node = nouveau_vram_manager_del,
40519 + .debug = nouveau_vram_manager_debug
40520 };
40521
40522 static int
40523 @@ -199,11 +199,11 @@ nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
40524 }
40525
40526 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
40527 - nouveau_gart_manager_init,
40528 - nouveau_gart_manager_fini,
40529 - nouveau_gart_manager_new,
40530 - nouveau_gart_manager_del,
40531 - nouveau_gart_manager_debug
40532 + .init = nouveau_gart_manager_init,
40533 + .takedown = nouveau_gart_manager_fini,
40534 + .get_node = nouveau_gart_manager_new,
40535 + .put_node = nouveau_gart_manager_del,
40536 + .debug = nouveau_gart_manager_debug
40537 };
40538
40539 #include <core/subdev/vm/nv04.h>
40540 @@ -271,11 +271,11 @@ nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
40541 }
40542
40543 const struct ttm_mem_type_manager_func nv04_gart_manager = {
40544 - nv04_gart_manager_init,
40545 - nv04_gart_manager_fini,
40546 - nv04_gart_manager_new,
40547 - nv04_gart_manager_del,
40548 - nv04_gart_manager_debug
40549 + .init = nv04_gart_manager_init,
40550 + .takedown = nv04_gart_manager_fini,
40551 + .get_node = nv04_gart_manager_new,
40552 + .put_node = nv04_gart_manager_del,
40553 + .debug = nv04_gart_manager_debug
40554 };
40555
40556 int
40557 diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
40558 index fb84da3..d7ee463 100644
40559 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c
40560 +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
40561 @@ -67,7 +67,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
40562 bool can_switch;
40563
40564 spin_lock(&dev->count_lock);
40565 - can_switch = (dev->open_count == 0);
40566 + can_switch = (local_read(&dev->open_count) == 0);
40567 spin_unlock(&dev->count_lock);
40568 return can_switch;
40569 }
40570 diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
40571 index eb89653..613cf71 100644
40572 --- a/drivers/gpu/drm/qxl/qxl_cmd.c
40573 +++ b/drivers/gpu/drm/qxl/qxl_cmd.c
40574 @@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
40575 int ret;
40576
40577 mutex_lock(&qdev->async_io_mutex);
40578 - irq_num = atomic_read(&qdev->irq_received_io_cmd);
40579 + irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
40580 if (qdev->last_sent_io_cmd > irq_num) {
40581 if (intr)
40582 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
40583 - atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40584 + atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40585 else
40586 ret = wait_event_timeout(qdev->io_cmd_event,
40587 - atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40588 + atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40589 /* 0 is timeout, just bail the "hw" has gone away */
40590 if (ret <= 0)
40591 goto out;
40592 - irq_num = atomic_read(&qdev->irq_received_io_cmd);
40593 + irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
40594 }
40595 outb(val, addr);
40596 qdev->last_sent_io_cmd = irq_num + 1;
40597 if (intr)
40598 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
40599 - atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40600 + atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40601 else
40602 ret = wait_event_timeout(qdev->io_cmd_event,
40603 - atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40604 + atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
40605 out:
40606 if (ret > 0)
40607 ret = 0;
40608 diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
40609 index c3c2bbd..bc3c0fb 100644
40610 --- a/drivers/gpu/drm/qxl/qxl_debugfs.c
40611 +++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
40612 @@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
40613 struct drm_info_node *node = (struct drm_info_node *) m->private;
40614 struct qxl_device *qdev = node->minor->dev->dev_private;
40615
40616 - seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
40617 - seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
40618 - seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
40619 - seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
40620 + seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received));
40621 + seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_display));
40622 + seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_cursor));
40623 + seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_io_cmd));
40624 seq_printf(m, "%d\n", qdev->irq_received_error);
40625 return 0;
40626 }
40627 diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
40628 index 36ed40b..0397633 100644
40629 --- a/drivers/gpu/drm/qxl/qxl_drv.h
40630 +++ b/drivers/gpu/drm/qxl/qxl_drv.h
40631 @@ -290,10 +290,10 @@ struct qxl_device {
40632 unsigned int last_sent_io_cmd;
40633
40634 /* interrupt handling */
40635 - atomic_t irq_received;
40636 - atomic_t irq_received_display;
40637 - atomic_t irq_received_cursor;
40638 - atomic_t irq_received_io_cmd;
40639 + atomic_unchecked_t irq_received;
40640 + atomic_unchecked_t irq_received_display;
40641 + atomic_unchecked_t irq_received_cursor;
40642 + atomic_unchecked_t irq_received_io_cmd;
40643 unsigned irq_received_error;
40644 wait_queue_head_t display_event;
40645 wait_queue_head_t cursor_event;
40646 diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
40647 index 0bb86e6..d41416d 100644
40648 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c
40649 +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
40650 @@ -181,7 +181,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
40651
40652 /* TODO copy slow path code from i915 */
40653 fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
40654 - unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
40655 + unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void __force_user *)(unsigned long)cmd->command, cmd->command_size);
40656
40657 {
40658 struct qxl_drawable *draw = fb_cmd;
40659 @@ -201,7 +201,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
40660 struct drm_qxl_reloc reloc;
40661
40662 if (copy_from_user(&reloc,
40663 - &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
40664 + &((struct drm_qxl_reloc __force_user *)(uintptr_t)cmd->relocs)[i],
40665 sizeof(reloc))) {
40666 ret = -EFAULT;
40667 goto out_free_bos;
40668 @@ -294,10 +294,10 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
40669
40670 for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
40671
40672 - struct drm_qxl_command *commands =
40673 - (struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
40674 + struct drm_qxl_command __user *commands =
40675 + (struct drm_qxl_command __user *)(uintptr_t)execbuffer->commands;
40676
40677 - if (copy_from_user(&user_cmd, &commands[cmd_num],
40678 + if (copy_from_user(&user_cmd, (struct drm_qxl_command __force_user *)&commands[cmd_num],
40679 sizeof(user_cmd)))
40680 return -EFAULT;
40681
40682 diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
40683 index 28f84b4..fb3e224 100644
40684 --- a/drivers/gpu/drm/qxl/qxl_irq.c
40685 +++ b/drivers/gpu/drm/qxl/qxl_irq.c
40686 @@ -33,19 +33,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
40687
40688 pending = xchg(&qdev->ram_header->int_pending, 0);
40689
40690 - atomic_inc(&qdev->irq_received);
40691 + atomic_inc_unchecked(&qdev->irq_received);
40692
40693 if (pending & QXL_INTERRUPT_DISPLAY) {
40694 - atomic_inc(&qdev->irq_received_display);
40695 + atomic_inc_unchecked(&qdev->irq_received_display);
40696 wake_up_all(&qdev->display_event);
40697 qxl_queue_garbage_collect(qdev, false);
40698 }
40699 if (pending & QXL_INTERRUPT_CURSOR) {
40700 - atomic_inc(&qdev->irq_received_cursor);
40701 + atomic_inc_unchecked(&qdev->irq_received_cursor);
40702 wake_up_all(&qdev->cursor_event);
40703 }
40704 if (pending & QXL_INTERRUPT_IO_CMD) {
40705 - atomic_inc(&qdev->irq_received_io_cmd);
40706 + atomic_inc_unchecked(&qdev->irq_received_io_cmd);
40707 wake_up_all(&qdev->io_cmd_event);
40708 }
40709 if (pending & QXL_INTERRUPT_ERROR) {
40710 @@ -82,10 +82,10 @@ int qxl_irq_init(struct qxl_device *qdev)
40711 init_waitqueue_head(&qdev->io_cmd_event);
40712 INIT_WORK(&qdev->client_monitors_config_work,
40713 qxl_client_monitors_config_work_func);
40714 - atomic_set(&qdev->irq_received, 0);
40715 - atomic_set(&qdev->irq_received_display, 0);
40716 - atomic_set(&qdev->irq_received_cursor, 0);
40717 - atomic_set(&qdev->irq_received_io_cmd, 0);
40718 + atomic_set_unchecked(&qdev->irq_received, 0);
40719 + atomic_set_unchecked(&qdev->irq_received_display, 0);
40720 + atomic_set_unchecked(&qdev->irq_received_cursor, 0);
40721 + atomic_set_unchecked(&qdev->irq_received_io_cmd, 0);
40722 qdev->irq_received_error = 0;
40723 ret = drm_irq_install(qdev->ddev);
40724 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
40725 diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
40726 index d52c275..4e6b43d 100644
40727 --- a/drivers/gpu/drm/qxl/qxl_ttm.c
40728 +++ b/drivers/gpu/drm/qxl/qxl_ttm.c
40729 @@ -103,7 +103,7 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
40730 }
40731 }
40732
40733 -static struct vm_operations_struct qxl_ttm_vm_ops;
40734 +static vm_operations_struct_no_const qxl_ttm_vm_ops __read_only;
40735 static const struct vm_operations_struct *ttm_vm_ops;
40736
40737 static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
40738 @@ -147,8 +147,10 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
40739 return r;
40740 if (unlikely(ttm_vm_ops == NULL)) {
40741 ttm_vm_ops = vma->vm_ops;
40742 + pax_open_kernel();
40743 qxl_ttm_vm_ops = *ttm_vm_ops;
40744 qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
40745 + pax_close_kernel();
40746 }
40747 vma->vm_ops = &qxl_ttm_vm_ops;
40748 return 0;
40749 @@ -561,25 +563,23 @@ static int qxl_mm_dump_table(struct seq_file *m, void *data)
40750 static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
40751 {
40752 #if defined(CONFIG_DEBUG_FS)
40753 - static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
40754 - static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
40755 - unsigned i;
40756 + static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES] = {
40757 + {
40758 + .name = "qxl_mem_mm",
40759 + .show = &qxl_mm_dump_table,
40760 + },
40761 + {
40762 + .name = "qxl_surf_mm",
40763 + .show = &qxl_mm_dump_table,
40764 + }
40765 + };
40766
40767 - for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
40768 - if (i == 0)
40769 - sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
40770 - else
40771 - sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
40772 - qxl_mem_types_list[i].name = qxl_mem_types_names[i];
40773 - qxl_mem_types_list[i].show = &qxl_mm_dump_table;
40774 - qxl_mem_types_list[i].driver_features = 0;
40775 - if (i == 0)
40776 - qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
40777 - else
40778 - qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
40779 + pax_open_kernel();
40780 + *(void **)&qxl_mem_types_list[0].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
40781 + *(void **)&qxl_mem_types_list[1].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
40782 + pax_close_kernel();
40783
40784 - }
40785 - return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
40786 + return qxl_debugfs_add_files(qdev, qxl_mem_types_list, QXL_DEBUGFS_MEM_TYPES);
40787 #else
40788 return 0;
40789 #endif
40790 diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
40791 index 59459fe..be26b31 100644
40792 --- a/drivers/gpu/drm/r128/r128_cce.c
40793 +++ b/drivers/gpu/drm/r128/r128_cce.c
40794 @@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
40795
40796 /* GH: Simple idle check.
40797 */
40798 - atomic_set(&dev_priv->idle_count, 0);
40799 + atomic_set_unchecked(&dev_priv->idle_count, 0);
40800
40801 /* We don't support anything other than bus-mastering ring mode,
40802 * but the ring can be in either AGP or PCI space for the ring
40803 diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
40804 index 5bf3f5f..7000661 100644
40805 --- a/drivers/gpu/drm/r128/r128_drv.h
40806 +++ b/drivers/gpu/drm/r128/r128_drv.h
40807 @@ -90,14 +90,14 @@ typedef struct drm_r128_private {
40808 int is_pci;
40809 unsigned long cce_buffers_offset;
40810
40811 - atomic_t idle_count;
40812 + atomic_unchecked_t idle_count;
40813
40814 int page_flipping;
40815 int current_page;
40816 u32 crtc_offset;
40817 u32 crtc_offset_cntl;
40818
40819 - atomic_t vbl_received;
40820 + atomic_unchecked_t vbl_received;
40821
40822 u32 color_fmt;
40823 unsigned int front_offset;
40824 diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
40825 index b0d0fd3..a6fbbe4 100644
40826 --- a/drivers/gpu/drm/r128/r128_ioc32.c
40827 +++ b/drivers/gpu/drm/r128/r128_ioc32.c
40828 @@ -178,7 +178,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
40829 return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
40830 }
40831
40832 -drm_ioctl_compat_t *r128_compat_ioctls[] = {
40833 +drm_ioctl_compat_t r128_compat_ioctls[] = {
40834 [DRM_R128_INIT] = compat_r128_init,
40835 [DRM_R128_DEPTH] = compat_r128_depth,
40836 [DRM_R128_STIPPLE] = compat_r128_stipple,
40837 @@ -197,18 +197,15 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
40838 long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40839 {
40840 unsigned int nr = DRM_IOCTL_NR(cmd);
40841 - drm_ioctl_compat_t *fn = NULL;
40842 int ret;
40843
40844 if (nr < DRM_COMMAND_BASE)
40845 return drm_compat_ioctl(filp, cmd, arg);
40846
40847 - if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls))
40848 - fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
40849 -
40850 - if (fn != NULL)
40851 + if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls)) {
40852 + drm_ioctl_compat_t fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
40853 ret = (*fn) (filp, cmd, arg);
40854 - else
40855 + } else
40856 ret = drm_ioctl(filp, cmd, arg);
40857
40858 return ret;
40859 diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
40860 index c2ae496..30b5993 100644
40861 --- a/drivers/gpu/drm/r128/r128_irq.c
40862 +++ b/drivers/gpu/drm/r128/r128_irq.c
40863 @@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
40864 if (crtc != 0)
40865 return 0;
40866
40867 - return atomic_read(&dev_priv->vbl_received);
40868 + return atomic_read_unchecked(&dev_priv->vbl_received);
40869 }
40870
40871 irqreturn_t r128_driver_irq_handler(int irq, void *arg)
40872 @@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
40873 /* VBLANK interrupt */
40874 if (status & R128_CRTC_VBLANK_INT) {
40875 R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
40876 - atomic_inc(&dev_priv->vbl_received);
40877 + atomic_inc_unchecked(&dev_priv->vbl_received);
40878 drm_handle_vblank(dev, 0);
40879 return IRQ_HANDLED;
40880 }
40881 diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
40882 index e806dac..f81d32f 100644
40883 --- a/drivers/gpu/drm/r128/r128_state.c
40884 +++ b/drivers/gpu/drm/r128/r128_state.c
40885 @@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
40886
40887 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
40888 {
40889 - if (atomic_read(&dev_priv->idle_count) == 0)
40890 + if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
40891 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
40892 else
40893 - atomic_set(&dev_priv->idle_count, 0);
40894 + atomic_set_unchecked(&dev_priv->idle_count, 0);
40895 }
40896
40897 #endif
40898 diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
40899 index 4a85bb6..aaea819 100644
40900 --- a/drivers/gpu/drm/radeon/mkregtable.c
40901 +++ b/drivers/gpu/drm/radeon/mkregtable.c
40902 @@ -624,14 +624,14 @@ static int parser_auth(struct table *t, const char *filename)
40903 regex_t mask_rex;
40904 regmatch_t match[4];
40905 char buf[1024];
40906 - size_t end;
40907 + long end;
40908 int len;
40909 int done = 0;
40910 int r;
40911 unsigned o;
40912 struct offset *offset;
40913 char last_reg_s[10];
40914 - int last_reg;
40915 + unsigned long last_reg;
40916
40917 if (regcomp
40918 (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
40919 diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
40920 index 2cd144c..a01c95a 100644
40921 --- a/drivers/gpu/drm/radeon/radeon_device.c
40922 +++ b/drivers/gpu/drm/radeon/radeon_device.c
40923 @@ -1129,7 +1129,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
40924 bool can_switch;
40925
40926 spin_lock(&dev->count_lock);
40927 - can_switch = (dev->open_count == 0);
40928 + can_switch = (local_read(&dev->open_count) == 0);
40929 spin_unlock(&dev->count_lock);
40930 return can_switch;
40931 }
40932 diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
40933 index dafd812..1bf20c7 100644
40934 --- a/drivers/gpu/drm/radeon/radeon_drv.h
40935 +++ b/drivers/gpu/drm/radeon/radeon_drv.h
40936 @@ -262,7 +262,7 @@ typedef struct drm_radeon_private {
40937
40938 /* SW interrupt */
40939 wait_queue_head_t swi_queue;
40940 - atomic_t swi_emitted;
40941 + atomic_unchecked_t swi_emitted;
40942 int vblank_crtc;
40943 uint32_t irq_enable_reg;
40944 uint32_t r500_disp_irq_reg;
40945 diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
40946 index bdb0f93..5ff558f 100644
40947 --- a/drivers/gpu/drm/radeon/radeon_ioc32.c
40948 +++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
40949 @@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
40950 request = compat_alloc_user_space(sizeof(*request));
40951 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
40952 || __put_user(req32.param, &request->param)
40953 - || __put_user((void __user *)(unsigned long)req32.value,
40954 + || __put_user((unsigned long)req32.value,
40955 &request->value))
40956 return -EFAULT;
40957
40958 @@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
40959 #define compat_radeon_cp_setparam NULL
40960 #endif /* X86_64 || IA64 */
40961
40962 -static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
40963 +static drm_ioctl_compat_t radeon_compat_ioctls[] = {
40964 [DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
40965 [DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
40966 [DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
40967 @@ -393,18 +393,15 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
40968 long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
40969 {
40970 unsigned int nr = DRM_IOCTL_NR(cmd);
40971 - drm_ioctl_compat_t *fn = NULL;
40972 int ret;
40973
40974 if (nr < DRM_COMMAND_BASE)
40975 return drm_compat_ioctl(filp, cmd, arg);
40976
40977 - if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls))
40978 - fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
40979 -
40980 - if (fn != NULL)
40981 + if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls)) {
40982 + drm_ioctl_compat_t fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
40983 ret = (*fn) (filp, cmd, arg);
40984 - else
40985 + } else
40986 ret = drm_ioctl(filp, cmd, arg);
40987
40988 return ret;
40989 diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
40990 index 244b19b..c19226d 100644
40991 --- a/drivers/gpu/drm/radeon/radeon_irq.c
40992 +++ b/drivers/gpu/drm/radeon/radeon_irq.c
40993 @@ -226,8 +226,8 @@ static int radeon_emit_irq(struct drm_device * dev)
40994 unsigned int ret;
40995 RING_LOCALS;
40996
40997 - atomic_inc(&dev_priv->swi_emitted);
40998 - ret = atomic_read(&dev_priv->swi_emitted);
40999 + atomic_inc_unchecked(&dev_priv->swi_emitted);
41000 + ret = atomic_read_unchecked(&dev_priv->swi_emitted);
41001
41002 BEGIN_RING(4);
41003 OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
41004 @@ -353,7 +353,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
41005 drm_radeon_private_t *dev_priv =
41006 (drm_radeon_private_t *) dev->dev_private;
41007
41008 - atomic_set(&dev_priv->swi_emitted, 0);
41009 + atomic_set_unchecked(&dev_priv->swi_emitted, 0);
41010 init_waitqueue_head(&dev_priv->swi_queue);
41011
41012 dev->max_vblank_count = 0x001fffff;
41013 diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
41014 index 956ab7f..fbd36d8 100644
41015 --- a/drivers/gpu/drm/radeon/radeon_state.c
41016 +++ b/drivers/gpu/drm/radeon/radeon_state.c
41017 @@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
41018 if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
41019 sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
41020
41021 - if (copy_from_user(&depth_boxes, clear->depth_boxes,
41022 + if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || copy_from_user(&depth_boxes, clear->depth_boxes,
41023 sarea_priv->nbox * sizeof(depth_boxes[0])))
41024 return -EFAULT;
41025
41026 @@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
41027 {
41028 drm_radeon_private_t *dev_priv = dev->dev_private;
41029 drm_radeon_getparam_t *param = data;
41030 - int value;
41031 + int value = 0;
41032
41033 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
41034
41035 diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
41036 index c8a8a51..219dacc 100644
41037 --- a/drivers/gpu/drm/radeon/radeon_ttm.c
41038 +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
41039 @@ -797,7 +797,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
41040 man->size = size >> PAGE_SHIFT;
41041 }
41042
41043 -static struct vm_operations_struct radeon_ttm_vm_ops;
41044 +static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
41045 static const struct vm_operations_struct *ttm_vm_ops = NULL;
41046
41047 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
41048 @@ -838,8 +838,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
41049 }
41050 if (unlikely(ttm_vm_ops == NULL)) {
41051 ttm_vm_ops = vma->vm_ops;
41052 + pax_open_kernel();
41053 radeon_ttm_vm_ops = *ttm_vm_ops;
41054 radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
41055 + pax_close_kernel();
41056 }
41057 vma->vm_ops = &radeon_ttm_vm_ops;
41058 return 0;
41059 diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
41060 index c11b71d..c8c48aa 100644
41061 --- a/drivers/gpu/drm/radeon/radeon_vm.c
41062 +++ b/drivers/gpu/drm/radeon/radeon_vm.c
41063 @@ -493,7 +493,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
41064 mutex_unlock(&vm->mutex);
41065
41066 r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
41067 - RADEON_GPU_PAGE_SIZE, false,
41068 + RADEON_GPU_PAGE_SIZE, true,
41069 RADEON_GEM_DOMAIN_VRAM, NULL, &pt);
41070 if (r)
41071 return r;
41072 @@ -913,7 +913,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
41073 return -ENOMEM;
41074 }
41075
41076 - r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, false,
41077 + r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, true,
41078 RADEON_GEM_DOMAIN_VRAM, NULL,
41079 &vm->page_directory);
41080 if (r)
41081 diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
41082 index edb871d..a275c6ed 100644
41083 --- a/drivers/gpu/drm/tegra/dc.c
41084 +++ b/drivers/gpu/drm/tegra/dc.c
41085 @@ -1057,7 +1057,7 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
41086 }
41087
41088 for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
41089 - dc->debugfs_files[i].data = dc;
41090 + *(void **)&dc->debugfs_files[i].data = dc;
41091
41092 err = drm_debugfs_create_files(dc->debugfs_files,
41093 ARRAY_SIZE(debugfs_files),
41094 diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
41095 index 0e599f0..c9ea7c7 100644
41096 --- a/drivers/gpu/drm/tegra/dsi.c
41097 +++ b/drivers/gpu/drm/tegra/dsi.c
41098 @@ -39,7 +39,7 @@ struct tegra_dsi {
41099 struct clk *clk_lp;
41100 struct clk *clk;
41101
41102 - struct drm_info_list *debugfs_files;
41103 + drm_info_list_no_const *debugfs_files;
41104 struct drm_minor *minor;
41105 struct dentry *debugfs;
41106
41107 diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
41108 index 6928015..c9853e7 100644
41109 --- a/drivers/gpu/drm/tegra/hdmi.c
41110 +++ b/drivers/gpu/drm/tegra/hdmi.c
41111 @@ -59,7 +59,7 @@ struct tegra_hdmi {
41112 bool stereo;
41113 bool dvi;
41114
41115 - struct drm_info_list *debugfs_files;
41116 + drm_info_list_no_const *debugfs_files;
41117 struct drm_minor *minor;
41118 struct dentry *debugfs;
41119 };
41120 diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
41121 index bd850c9..d9f3573 100644
41122 --- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
41123 +++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
41124 @@ -146,10 +146,10 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
41125 }
41126
41127 const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
41128 - ttm_bo_man_init,
41129 - ttm_bo_man_takedown,
41130 - ttm_bo_man_get_node,
41131 - ttm_bo_man_put_node,
41132 - ttm_bo_man_debug
41133 + .init = ttm_bo_man_init,
41134 + .takedown = ttm_bo_man_takedown,
41135 + .get_node = ttm_bo_man_get_node,
41136 + .put_node = ttm_bo_man_put_node,
41137 + .debug = ttm_bo_man_debug
41138 };
41139 EXPORT_SYMBOL(ttm_bo_manager_func);
41140 diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
41141 index dbc2def..0a9f710 100644
41142 --- a/drivers/gpu/drm/ttm/ttm_memory.c
41143 +++ b/drivers/gpu/drm/ttm/ttm_memory.c
41144 @@ -264,7 +264,7 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
41145 zone->glob = glob;
41146 glob->zone_kernel = zone;
41147 ret = kobject_init_and_add(
41148 - &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
41149 + &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
41150 if (unlikely(ret != 0)) {
41151 kobject_put(&zone->kobj);
41152 return ret;
41153 @@ -347,7 +347,7 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
41154 zone->glob = glob;
41155 glob->zone_dma32 = zone;
41156 ret = kobject_init_and_add(
41157 - &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
41158 + &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
41159 if (unlikely(ret != 0)) {
41160 kobject_put(&zone->kobj);
41161 return ret;
41162 diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
41163 index 863bef9..cba15cf 100644
41164 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
41165 +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
41166 @@ -391,9 +391,9 @@ out:
41167 static unsigned long
41168 ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
41169 {
41170 - static atomic_t start_pool = ATOMIC_INIT(0);
41171 + static atomic_unchecked_t start_pool = ATOMIC_INIT(0);
41172 unsigned i;
41173 - unsigned pool_offset = atomic_add_return(1, &start_pool);
41174 + unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool);
41175 struct ttm_page_pool *pool;
41176 int shrink_pages = sc->nr_to_scan;
41177 unsigned long freed = 0;
41178 diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
41179 index 3771763..883f206 100644
41180 --- a/drivers/gpu/drm/udl/udl_fb.c
41181 +++ b/drivers/gpu/drm/udl/udl_fb.c
41182 @@ -367,7 +367,6 @@ static int udl_fb_release(struct fb_info *info, int user)
41183 fb_deferred_io_cleanup(info);
41184 kfree(info->fbdefio);
41185 info->fbdefio = NULL;
41186 - info->fbops->fb_mmap = udl_fb_mmap;
41187 }
41188
41189 pr_warn("released /dev/fb%d user=%d count=%d\n",
41190 diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
41191 index ad02732..144f5ed 100644
41192 --- a/drivers/gpu/drm/via/via_drv.h
41193 +++ b/drivers/gpu/drm/via/via_drv.h
41194 @@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer {
41195 typedef uint32_t maskarray_t[5];
41196
41197 typedef struct drm_via_irq {
41198 - atomic_t irq_received;
41199 + atomic_unchecked_t irq_received;
41200 uint32_t pending_mask;
41201 uint32_t enable_mask;
41202 wait_queue_head_t irq_queue;
41203 @@ -75,7 +75,7 @@ typedef struct drm_via_private {
41204 struct timeval last_vblank;
41205 int last_vblank_valid;
41206 unsigned usec_per_vblank;
41207 - atomic_t vbl_received;
41208 + atomic_unchecked_t vbl_received;
41209 drm_via_state_t hc_state;
41210 char pci_buf[VIA_PCI_BUF_SIZE];
41211 const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
41212 diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
41213 index 1319433..a993b0c 100644
41214 --- a/drivers/gpu/drm/via/via_irq.c
41215 +++ b/drivers/gpu/drm/via/via_irq.c
41216 @@ -101,7 +101,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
41217 if (crtc != 0)
41218 return 0;
41219
41220 - return atomic_read(&dev_priv->vbl_received);
41221 + return atomic_read_unchecked(&dev_priv->vbl_received);
41222 }
41223
41224 irqreturn_t via_driver_irq_handler(int irq, void *arg)
41225 @@ -116,8 +116,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
41226
41227 status = VIA_READ(VIA_REG_INTERRUPT);
41228 if (status & VIA_IRQ_VBLANK_PENDING) {
41229 - atomic_inc(&dev_priv->vbl_received);
41230 - if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
41231 + atomic_inc_unchecked(&dev_priv->vbl_received);
41232 + if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
41233 do_gettimeofday(&cur_vblank);
41234 if (dev_priv->last_vblank_valid) {
41235 dev_priv->usec_per_vblank =
41236 @@ -127,7 +127,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
41237 dev_priv->last_vblank = cur_vblank;
41238 dev_priv->last_vblank_valid = 1;
41239 }
41240 - if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
41241 + if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
41242 DRM_DEBUG("US per vblank is: %u\n",
41243 dev_priv->usec_per_vblank);
41244 }
41245 @@ -137,7 +137,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
41246
41247 for (i = 0; i < dev_priv->num_irqs; ++i) {
41248 if (status & cur_irq->pending_mask) {
41249 - atomic_inc(&cur_irq->irq_received);
41250 + atomic_inc_unchecked(&cur_irq->irq_received);
41251 wake_up(&cur_irq->irq_queue);
41252 handled = 1;
41253 if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
41254 @@ -242,11 +242,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
41255 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
41256 ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
41257 masks[irq][4]));
41258 - cur_irq_sequence = atomic_read(&cur_irq->irq_received);
41259 + cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
41260 } else {
41261 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
41262 (((cur_irq_sequence =
41263 - atomic_read(&cur_irq->irq_received)) -
41264 + atomic_read_unchecked(&cur_irq->irq_received)) -
41265 *sequence) <= (1 << 23)));
41266 }
41267 *sequence = cur_irq_sequence;
41268 @@ -284,7 +284,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
41269 }
41270
41271 for (i = 0; i < dev_priv->num_irqs; ++i) {
41272 - atomic_set(&cur_irq->irq_received, 0);
41273 + atomic_set_unchecked(&cur_irq->irq_received, 0);
41274 cur_irq->enable_mask = dev_priv->irq_masks[i][0];
41275 cur_irq->pending_mask = dev_priv->irq_masks[i][1];
41276 init_waitqueue_head(&cur_irq->irq_queue);
41277 @@ -366,7 +366,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
41278 switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
41279 case VIA_IRQ_RELATIVE:
41280 irqwait->request.sequence +=
41281 - atomic_read(&cur_irq->irq_received);
41282 + atomic_read_unchecked(&cur_irq->irq_received);
41283 irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
41284 case VIA_IRQ_ABSOLUTE:
41285 break;
41286 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
41287 index 6b252a8..5975dfe 100644
41288 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
41289 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
41290 @@ -437,7 +437,7 @@ struct vmw_private {
41291 * Fencing and IRQs.
41292 */
41293
41294 - atomic_t marker_seq;
41295 + atomic_unchecked_t marker_seq;
41296 wait_queue_head_t fence_queue;
41297 wait_queue_head_t fifo_queue;
41298 int fence_queue_waiters; /* Protected by hw_mutex */
41299 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
41300 index 6ccd993..618d592 100644
41301 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
41302 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
41303 @@ -154,7 +154,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
41304 (unsigned int) min,
41305 (unsigned int) fifo->capabilities);
41306
41307 - atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
41308 + atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
41309 iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
41310 vmw_marker_queue_init(&fifo->marker_queue);
41311 return vmw_fifo_send_fence(dev_priv, &dummy);
41312 @@ -372,7 +372,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
41313 if (reserveable)
41314 iowrite32(bytes, fifo_mem +
41315 SVGA_FIFO_RESERVED);
41316 - return fifo_mem + (next_cmd >> 2);
41317 + return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
41318 } else {
41319 need_bounce = true;
41320 }
41321 @@ -492,7 +492,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
41322
41323 fm = vmw_fifo_reserve(dev_priv, bytes);
41324 if (unlikely(fm == NULL)) {
41325 - *seqno = atomic_read(&dev_priv->marker_seq);
41326 + *seqno = atomic_read_unchecked(&dev_priv->marker_seq);
41327 ret = -ENOMEM;
41328 (void)vmw_fallback_wait(dev_priv, false, true, *seqno,
41329 false, 3*HZ);
41330 @@ -500,7 +500,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
41331 }
41332
41333 do {
41334 - *seqno = atomic_add_return(1, &dev_priv->marker_seq);
41335 + *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
41336 } while (*seqno == 0);
41337
41338 if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
41339 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
41340 index b1273e8..9c274fd 100644
41341 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
41342 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
41343 @@ -164,9 +164,9 @@ static void vmw_gmrid_man_debug(struct ttm_mem_type_manager *man,
41344 }
41345
41346 const struct ttm_mem_type_manager_func vmw_gmrid_manager_func = {
41347 - vmw_gmrid_man_init,
41348 - vmw_gmrid_man_takedown,
41349 - vmw_gmrid_man_get_node,
41350 - vmw_gmrid_man_put_node,
41351 - vmw_gmrid_man_debug
41352 + .init = vmw_gmrid_man_init,
41353 + .takedown = vmw_gmrid_man_takedown,
41354 + .get_node = vmw_gmrid_man_get_node,
41355 + .put_node = vmw_gmrid_man_put_node,
41356 + .debug = vmw_gmrid_man_debug
41357 };
41358 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
41359 index 37881ec..319065d 100644
41360 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
41361 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
41362 @@ -235,7 +235,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
41363 int ret;
41364
41365 num_clips = arg->num_clips;
41366 - clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
41367 + clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
41368
41369 if (unlikely(num_clips == 0))
41370 return 0;
41371 @@ -318,7 +318,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
41372 int ret;
41373
41374 num_clips = arg->num_clips;
41375 - clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
41376 + clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
41377
41378 if (unlikely(num_clips == 0))
41379 return 0;
41380 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
41381 index 0c42376..6febe77 100644
41382 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
41383 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
41384 @@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
41385 * emitted. Then the fence is stale and signaled.
41386 */
41387
41388 - ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
41389 + ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
41390 > VMW_FENCE_WRAP);
41391
41392 return ret;
41393 @@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
41394
41395 if (fifo_idle)
41396 down_read(&fifo_state->rwsem);
41397 - signal_seq = atomic_read(&dev_priv->marker_seq);
41398 + signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
41399 ret = 0;
41400
41401 for (;;) {
41402 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
41403 index 8a8725c2..afed796 100644
41404 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
41405 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
41406 @@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
41407 while (!vmw_lag_lt(queue, us)) {
41408 spin_lock(&queue->lock);
41409 if (list_empty(&queue->head))
41410 - seqno = atomic_read(&dev_priv->marker_seq);
41411 + seqno = atomic_read_unchecked(&dev_priv->marker_seq);
41412 else {
41413 marker = list_first_entry(&queue->head,
41414 struct vmw_marker, head);
41415 diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
41416 index 6866448..2ad2b34 100644
41417 --- a/drivers/gpu/vga/vga_switcheroo.c
41418 +++ b/drivers/gpu/vga/vga_switcheroo.c
41419 @@ -644,7 +644,7 @@ static int vga_switcheroo_runtime_resume(struct device *dev)
41420
41421 /* this version is for the case where the power switch is separate
41422 to the device being powered down. */
41423 -int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain)
41424 +int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain)
41425 {
41426 /* copy over all the bus versions */
41427 if (dev->bus && dev->bus->pm) {
41428 @@ -689,7 +689,7 @@ static int vga_switcheroo_runtime_resume_hdmi_audio(struct device *dev)
41429 return ret;
41430 }
41431
41432 -int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain)
41433 +int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain)
41434 {
41435 /* copy over all the bus versions */
41436 if (dev->bus && dev->bus->pm) {
41437 diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
41438 index a5c7927..025a2b4 100644
41439 --- a/drivers/hid/hid-core.c
41440 +++ b/drivers/hid/hid-core.c
41441 @@ -2476,7 +2476,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
41442
41443 int hid_add_device(struct hid_device *hdev)
41444 {
41445 - static atomic_t id = ATOMIC_INIT(0);
41446 + static atomic_unchecked_t id = ATOMIC_INIT(0);
41447 int ret;
41448
41449 if (WARN_ON(hdev->status & HID_STAT_ADDED))
41450 @@ -2518,7 +2518,7 @@ int hid_add_device(struct hid_device *hdev)
41451 /* XXX hack, any other cleaner solution after the driver core
41452 * is converted to allow more than 20 bytes as the device name? */
41453 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
41454 - hdev->vendor, hdev->product, atomic_inc_return(&id));
41455 + hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
41456
41457 hid_debug_register(hdev, dev_name(&hdev->dev));
41458 ret = device_add(&hdev->dev);
41459 diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
41460 index c13fb5b..55a3802 100644
41461 --- a/drivers/hid/hid-wiimote-debug.c
41462 +++ b/drivers/hid/hid-wiimote-debug.c
41463 @@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
41464 else if (size == 0)
41465 return -EIO;
41466
41467 - if (copy_to_user(u, buf, size))
41468 + if (size > sizeof(buf) || copy_to_user(u, buf, size))
41469 return -EFAULT;
41470
41471 *off += size;
41472 diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
41473 index 0d078c3..cd0962c 100644
41474 --- a/drivers/hid/uhid.c
41475 +++ b/drivers/hid/uhid.c
41476 @@ -47,7 +47,7 @@ struct uhid_device {
41477 struct mutex report_lock;
41478 wait_queue_head_t report_wait;
41479 atomic_t report_done;
41480 - atomic_t report_id;
41481 + atomic_unchecked_t report_id;
41482 struct uhid_event report_buf;
41483 };
41484
41485 @@ -163,7 +163,7 @@ static int uhid_hid_get_raw(struct hid_device *hid, unsigned char rnum,
41486
41487 spin_lock_irqsave(&uhid->qlock, flags);
41488 ev->type = UHID_FEATURE;
41489 - ev->u.feature.id = atomic_inc_return(&uhid->report_id);
41490 + ev->u.feature.id = atomic_inc_return_unchecked(&uhid->report_id);
41491 ev->u.feature.rnum = rnum;
41492 ev->u.feature.rtype = report_type;
41493
41494 @@ -539,7 +539,7 @@ static int uhid_dev_feature_answer(struct uhid_device *uhid,
41495 spin_lock_irqsave(&uhid->qlock, flags);
41496
41497 /* id for old report; drop it silently */
41498 - if (atomic_read(&uhid->report_id) != ev->u.feature_answer.id)
41499 + if (atomic_read_unchecked(&uhid->report_id) != ev->u.feature_answer.id)
41500 goto unlock;
41501 if (atomic_read(&uhid->report_done))
41502 goto unlock;
41503 diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
41504 index 602ca86..10a6573 100644
41505 --- a/drivers/hv/channel.c
41506 +++ b/drivers/hv/channel.c
41507 @@ -365,8 +365,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
41508 int ret = 0;
41509 int t;
41510
41511 - next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
41512 - atomic_inc(&vmbus_connection.next_gpadl_handle);
41513 + next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle);
41514 + atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle);
41515
41516 ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
41517 if (ret)
41518 diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
41519 index bcb4950..61dba6c 100644
41520 --- a/drivers/hv/hv.c
41521 +++ b/drivers/hv/hv.c
41522 @@ -112,7 +112,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
41523 u64 output_address = (output) ? virt_to_phys(output) : 0;
41524 u32 output_address_hi = output_address >> 32;
41525 u32 output_address_lo = output_address & 0xFFFFFFFF;
41526 - void *hypercall_page = hv_context.hypercall_page;
41527 + void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
41528
41529 __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
41530 "=a"(hv_status_lo) : "d" (control_hi),
41531 @@ -154,7 +154,7 @@ int hv_init(void)
41532 /* See if the hypercall page is already set */
41533 rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
41534
41535 - virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
41536 + virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
41537
41538 if (!virtaddr)
41539 goto cleanup;
41540 diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
41541 index 5e90c5d..d8fcefb 100644
41542 --- a/drivers/hv/hv_balloon.c
41543 +++ b/drivers/hv/hv_balloon.c
41544 @@ -470,7 +470,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
41545
41546 module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
41547 MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
41548 -static atomic_t trans_id = ATOMIC_INIT(0);
41549 +static atomic_unchecked_t trans_id = ATOMIC_INIT(0);
41550
41551 static int dm_ring_size = (5 * PAGE_SIZE);
41552
41553 @@ -893,7 +893,7 @@ static void hot_add_req(struct work_struct *dummy)
41554 pr_info("Memory hot add failed\n");
41555
41556 dm->state = DM_INITIALIZED;
41557 - resp.hdr.trans_id = atomic_inc_return(&trans_id);
41558 + resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41559 vmbus_sendpacket(dm->dev->channel, &resp,
41560 sizeof(struct dm_hot_add_response),
41561 (unsigned long)NULL,
41562 @@ -973,7 +973,7 @@ static void post_status(struct hv_dynmem_device *dm)
41563 memset(&status, 0, sizeof(struct dm_status));
41564 status.hdr.type = DM_STATUS_REPORT;
41565 status.hdr.size = sizeof(struct dm_status);
41566 - status.hdr.trans_id = atomic_inc_return(&trans_id);
41567 + status.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41568
41569 /*
41570 * The host expects the guest to report free memory.
41571 @@ -993,7 +993,7 @@ static void post_status(struct hv_dynmem_device *dm)
41572 * send the status. This can happen if we were interrupted
41573 * after we picked our transaction ID.
41574 */
41575 - if (status.hdr.trans_id != atomic_read(&trans_id))
41576 + if (status.hdr.trans_id != atomic_read_unchecked(&trans_id))
41577 return;
41578
41579 /*
41580 @@ -1129,7 +1129,7 @@ static void balloon_up(struct work_struct *dummy)
41581 */
41582
41583 do {
41584 - bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
41585 + bl_resp->hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41586 ret = vmbus_sendpacket(dm_device.dev->channel,
41587 bl_resp,
41588 bl_resp->hdr.size,
41589 @@ -1175,7 +1175,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
41590
41591 memset(&resp, 0, sizeof(struct dm_unballoon_response));
41592 resp.hdr.type = DM_UNBALLOON_RESPONSE;
41593 - resp.hdr.trans_id = atomic_inc_return(&trans_id);
41594 + resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41595 resp.hdr.size = sizeof(struct dm_unballoon_response);
41596
41597 vmbus_sendpacket(dm_device.dev->channel, &resp,
41598 @@ -1239,7 +1239,7 @@ static void version_resp(struct hv_dynmem_device *dm,
41599 memset(&version_req, 0, sizeof(struct dm_version_request));
41600 version_req.hdr.type = DM_VERSION_REQUEST;
41601 version_req.hdr.size = sizeof(struct dm_version_request);
41602 - version_req.hdr.trans_id = atomic_inc_return(&trans_id);
41603 + version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41604 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN7;
41605 version_req.is_last_attempt = 1;
41606
41607 @@ -1409,7 +1409,7 @@ static int balloon_probe(struct hv_device *dev,
41608 memset(&version_req, 0, sizeof(struct dm_version_request));
41609 version_req.hdr.type = DM_VERSION_REQUEST;
41610 version_req.hdr.size = sizeof(struct dm_version_request);
41611 - version_req.hdr.trans_id = atomic_inc_return(&trans_id);
41612 + version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41613 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN8;
41614 version_req.is_last_attempt = 0;
41615
41616 @@ -1440,7 +1440,7 @@ static int balloon_probe(struct hv_device *dev,
41617 memset(&cap_msg, 0, sizeof(struct dm_capabilities));
41618 cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
41619 cap_msg.hdr.size = sizeof(struct dm_capabilities);
41620 - cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
41621 + cap_msg.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
41622
41623 cap_msg.caps.cap_bits.balloon = 1;
41624 cap_msg.caps.cap_bits.hot_add = 1;
41625 diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
41626 index 860134d..ea3a79a 100644
41627 --- a/drivers/hv/hyperv_vmbus.h
41628 +++ b/drivers/hv/hyperv_vmbus.h
41629 @@ -602,7 +602,7 @@ enum vmbus_connect_state {
41630 struct vmbus_connection {
41631 enum vmbus_connect_state conn_state;
41632
41633 - atomic_t next_gpadl_handle;
41634 + atomic_unchecked_t next_gpadl_handle;
41635
41636 /*
41637 * Represents channel interrupts. Each bit position represents a
41638 diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
41639 index 8e53a3c..7a64e44 100644
41640 --- a/drivers/hv/vmbus_drv.c
41641 +++ b/drivers/hv/vmbus_drv.c
41642 @@ -807,10 +807,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
41643 {
41644 int ret = 0;
41645
41646 - static atomic_t device_num = ATOMIC_INIT(0);
41647 + static atomic_unchecked_t device_num = ATOMIC_INIT(0);
41648
41649 dev_set_name(&child_device_obj->device, "vmbus_0_%d",
41650 - atomic_inc_return(&device_num));
41651 + atomic_inc_return_unchecked(&device_num));
41652
41653 child_device_obj->device.bus = &hv_bus;
41654 child_device_obj->device.parent = &hv_acpi_dev->dev;
41655 diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
41656 index 579bdf9..75118b5 100644
41657 --- a/drivers/hwmon/acpi_power_meter.c
41658 +++ b/drivers/hwmon/acpi_power_meter.c
41659 @@ -116,7 +116,7 @@ struct sensor_template {
41660 struct device_attribute *devattr,
41661 const char *buf, size_t count);
41662 int index;
41663 -};
41664 +} __do_const;
41665
41666 /* Averaging interval */
41667 static int update_avg_interval(struct acpi_power_meter_resource *resource)
41668 @@ -631,7 +631,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
41669 struct sensor_template *attrs)
41670 {
41671 struct device *dev = &resource->acpi_dev->dev;
41672 - struct sensor_device_attribute *sensors =
41673 + sensor_device_attribute_no_const *sensors =
41674 &resource->sensors[resource->num_sensors];
41675 int res = 0;
41676
41677 diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
41678 index 3288f13..71cfb4e 100644
41679 --- a/drivers/hwmon/applesmc.c
41680 +++ b/drivers/hwmon/applesmc.c
41681 @@ -1106,7 +1106,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
41682 {
41683 struct applesmc_node_group *grp;
41684 struct applesmc_dev_attr *node;
41685 - struct attribute *attr;
41686 + attribute_no_const *attr;
41687 int ret, i;
41688
41689 for (grp = groups; grp->format; grp++) {
41690 diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
41691 index ae208f6..48b6c5b 100644
41692 --- a/drivers/hwmon/asus_atk0110.c
41693 +++ b/drivers/hwmon/asus_atk0110.c
41694 @@ -147,10 +147,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
41695 struct atk_sensor_data {
41696 struct list_head list;
41697 struct atk_data *data;
41698 - struct device_attribute label_attr;
41699 - struct device_attribute input_attr;
41700 - struct device_attribute limit1_attr;
41701 - struct device_attribute limit2_attr;
41702 + device_attribute_no_const label_attr;
41703 + device_attribute_no_const input_attr;
41704 + device_attribute_no_const limit1_attr;
41705 + device_attribute_no_const limit2_attr;
41706 char label_attr_name[ATTR_NAME_SIZE];
41707 char input_attr_name[ATTR_NAME_SIZE];
41708 char limit1_attr_name[ATTR_NAME_SIZE];
41709 @@ -270,7 +270,7 @@ static ssize_t atk_name_show(struct device *dev,
41710 static struct device_attribute atk_name_attr =
41711 __ATTR(name, 0444, atk_name_show, NULL);
41712
41713 -static void atk_init_attribute(struct device_attribute *attr, char *name,
41714 +static void atk_init_attribute(device_attribute_no_const *attr, char *name,
41715 sysfs_show_func show)
41716 {
41717 sysfs_attr_init(&attr->attr);
41718 diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
41719 index d76f0b7..55ae976 100644
41720 --- a/drivers/hwmon/coretemp.c
41721 +++ b/drivers/hwmon/coretemp.c
41722 @@ -784,7 +784,7 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
41723 return NOTIFY_OK;
41724 }
41725
41726 -static struct notifier_block coretemp_cpu_notifier __refdata = {
41727 +static struct notifier_block coretemp_cpu_notifier = {
41728 .notifier_call = coretemp_cpu_callback,
41729 };
41730
41731 diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
41732 index 632f1dc..57e6a58 100644
41733 --- a/drivers/hwmon/ibmaem.c
41734 +++ b/drivers/hwmon/ibmaem.c
41735 @@ -926,7 +926,7 @@ static int aem_register_sensors(struct aem_data *data,
41736 struct aem_rw_sensor_template *rw)
41737 {
41738 struct device *dev = &data->pdev->dev;
41739 - struct sensor_device_attribute *sensors = data->sensors;
41740 + sensor_device_attribute_no_const *sensors = data->sensors;
41741 int err;
41742
41743 /* Set up read-only sensors */
41744 diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
41745 index 9fbb1b1..efbaa3e 100644
41746 --- a/drivers/hwmon/iio_hwmon.c
41747 +++ b/drivers/hwmon/iio_hwmon.c
41748 @@ -61,7 +61,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
41749 {
41750 struct device *dev = &pdev->dev;
41751 struct iio_hwmon_state *st;
41752 - struct sensor_device_attribute *a;
41753 + sensor_device_attribute_no_const *a;
41754 int ret, i;
41755 int in_i = 1, temp_i = 1, curr_i = 1;
41756 enum iio_chan_type type;
41757 diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
41758 index 38d5a63..cf2c2ea 100644
41759 --- a/drivers/hwmon/nct6775.c
41760 +++ b/drivers/hwmon/nct6775.c
41761 @@ -944,10 +944,10 @@ static struct attribute_group *
41762 nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
41763 int repeat)
41764 {
41765 - struct attribute_group *group;
41766 + attribute_group_no_const *group;
41767 struct sensor_device_attr_u *su;
41768 - struct sensor_device_attribute *a;
41769 - struct sensor_device_attribute_2 *a2;
41770 + sensor_device_attribute_no_const *a;
41771 + sensor_device_attribute_2_no_const *a2;
41772 struct attribute **attrs;
41773 struct sensor_device_template **t;
41774 int i, count;
41775 diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
41776 index 291d11f..3f0dbbd 100644
41777 --- a/drivers/hwmon/pmbus/pmbus_core.c
41778 +++ b/drivers/hwmon/pmbus/pmbus_core.c
41779 @@ -783,7 +783,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
41780 return 0;
41781 }
41782
41783 -static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
41784 +static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
41785 const char *name,
41786 umode_t mode,
41787 ssize_t (*show)(struct device *dev,
41788 @@ -800,7 +800,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
41789 dev_attr->store = store;
41790 }
41791
41792 -static void pmbus_attr_init(struct sensor_device_attribute *a,
41793 +static void pmbus_attr_init(sensor_device_attribute_no_const *a,
41794 const char *name,
41795 umode_t mode,
41796 ssize_t (*show)(struct device *dev,
41797 @@ -822,7 +822,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
41798 u16 reg, u8 mask)
41799 {
41800 struct pmbus_boolean *boolean;
41801 - struct sensor_device_attribute *a;
41802 + sensor_device_attribute_no_const *a;
41803
41804 boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
41805 if (!boolean)
41806 @@ -847,7 +847,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
41807 bool update, bool readonly)
41808 {
41809 struct pmbus_sensor *sensor;
41810 - struct device_attribute *a;
41811 + device_attribute_no_const *a;
41812
41813 sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
41814 if (!sensor)
41815 @@ -878,7 +878,7 @@ static int pmbus_add_label(struct pmbus_data *data,
41816 const char *lstring, int index)
41817 {
41818 struct pmbus_label *label;
41819 - struct device_attribute *a;
41820 + device_attribute_no_const *a;
41821
41822 label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
41823 if (!label)
41824 diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
41825 index 97cd45a..ac54d8b 100644
41826 --- a/drivers/hwmon/sht15.c
41827 +++ b/drivers/hwmon/sht15.c
41828 @@ -169,7 +169,7 @@ struct sht15_data {
41829 int supply_uv;
41830 bool supply_uv_valid;
41831 struct work_struct update_supply_work;
41832 - atomic_t interrupt_handled;
41833 + atomic_unchecked_t interrupt_handled;
41834 };
41835
41836 /**
41837 @@ -542,13 +542,13 @@ static int sht15_measurement(struct sht15_data *data,
41838 ret = gpio_direction_input(data->pdata->gpio_data);
41839 if (ret)
41840 return ret;
41841 - atomic_set(&data->interrupt_handled, 0);
41842 + atomic_set_unchecked(&data->interrupt_handled, 0);
41843
41844 enable_irq(gpio_to_irq(data->pdata->gpio_data));
41845 if (gpio_get_value(data->pdata->gpio_data) == 0) {
41846 disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
41847 /* Only relevant if the interrupt hasn't occurred. */
41848 - if (!atomic_read(&data->interrupt_handled))
41849 + if (!atomic_read_unchecked(&data->interrupt_handled))
41850 schedule_work(&data->read_work);
41851 }
41852 ret = wait_event_timeout(data->wait_queue,
41853 @@ -820,7 +820,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
41854
41855 /* First disable the interrupt */
41856 disable_irq_nosync(irq);
41857 - atomic_inc(&data->interrupt_handled);
41858 + atomic_inc_unchecked(&data->interrupt_handled);
41859 /* Then schedule a reading work struct */
41860 if (data->state != SHT15_READING_NOTHING)
41861 schedule_work(&data->read_work);
41862 @@ -842,11 +842,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
41863 * If not, then start the interrupt again - care here as could
41864 * have gone low in meantime so verify it hasn't!
41865 */
41866 - atomic_set(&data->interrupt_handled, 0);
41867 + atomic_set_unchecked(&data->interrupt_handled, 0);
41868 enable_irq(gpio_to_irq(data->pdata->gpio_data));
41869 /* If still not occurred or another handler was scheduled */
41870 if (gpio_get_value(data->pdata->gpio_data)
41871 - || atomic_read(&data->interrupt_handled))
41872 + || atomic_read_unchecked(&data->interrupt_handled))
41873 return;
41874 }
41875
41876 diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
41877 index 8df43c5..b07b91d 100644
41878 --- a/drivers/hwmon/via-cputemp.c
41879 +++ b/drivers/hwmon/via-cputemp.c
41880 @@ -296,7 +296,7 @@ static int via_cputemp_cpu_callback(struct notifier_block *nfb,
41881 return NOTIFY_OK;
41882 }
41883
41884 -static struct notifier_block via_cputemp_cpu_notifier __refdata = {
41885 +static struct notifier_block via_cputemp_cpu_notifier = {
41886 .notifier_call = via_cputemp_cpu_callback,
41887 };
41888
41889 diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
41890 index 41fc683..a39cfea 100644
41891 --- a/drivers/i2c/busses/i2c-amd756-s4882.c
41892 +++ b/drivers/i2c/busses/i2c-amd756-s4882.c
41893 @@ -43,7 +43,7 @@
41894 extern struct i2c_adapter amd756_smbus;
41895
41896 static struct i2c_adapter *s4882_adapter;
41897 -static struct i2c_algorithm *s4882_algo;
41898 +static i2c_algorithm_no_const *s4882_algo;
41899
41900 /* Wrapper access functions for multiplexed SMBus */
41901 static DEFINE_MUTEX(amd756_lock);
41902 diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
41903 index 721f7eb..0fd2a09 100644
41904 --- a/drivers/i2c/busses/i2c-diolan-u2c.c
41905 +++ b/drivers/i2c/busses/i2c-diolan-u2c.c
41906 @@ -98,7 +98,7 @@ MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz");
41907 /* usb layer */
41908
41909 /* Send command to device, and get response. */
41910 -static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
41911 +static int __intentional_overflow(-1) diolan_usb_transfer(struct i2c_diolan_u2c *dev)
41912 {
41913 int ret = 0;
41914 int actual;
41915 diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
41916 index b170bdf..3c76427 100644
41917 --- a/drivers/i2c/busses/i2c-nforce2-s4985.c
41918 +++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
41919 @@ -41,7 +41,7 @@
41920 extern struct i2c_adapter *nforce2_smbus;
41921
41922 static struct i2c_adapter *s4985_adapter;
41923 -static struct i2c_algorithm *s4985_algo;
41924 +static i2c_algorithm_no_const *s4985_algo;
41925
41926 /* Wrapper access functions for multiplexed SMBus */
41927 static DEFINE_MUTEX(nforce2_lock);
41928 diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
41929 index 80b47e8..1a6040d9 100644
41930 --- a/drivers/i2c/i2c-dev.c
41931 +++ b/drivers/i2c/i2c-dev.c
41932 @@ -277,7 +277,7 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
41933 break;
41934 }
41935
41936 - data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
41937 + data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
41938 rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
41939 if (IS_ERR(rdwr_pa[i].buf)) {
41940 res = PTR_ERR(rdwr_pa[i].buf);
41941 diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
41942 index 0b510ba..4fbb5085 100644
41943 --- a/drivers/ide/ide-cd.c
41944 +++ b/drivers/ide/ide-cd.c
41945 @@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
41946 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
41947 if ((unsigned long)buf & alignment
41948 || blk_rq_bytes(rq) & q->dma_pad_mask
41949 - || object_is_on_stack(buf))
41950 + || object_starts_on_stack(buf))
41951 drive->dma = 0;
41952 }
41953 }
41954 diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
41955 index ede16aec..e423e8a 100644
41956 --- a/drivers/iio/industrialio-core.c
41957 +++ b/drivers/iio/industrialio-core.c
41958 @@ -527,7 +527,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
41959 }
41960
41961 static
41962 -int __iio_device_attr_init(struct device_attribute *dev_attr,
41963 +int __iio_device_attr_init(device_attribute_no_const *dev_attr,
41964 const char *postfix,
41965 struct iio_chan_spec const *chan,
41966 ssize_t (*readfunc)(struct device *dev,
41967 diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
41968 index c323917..6ddea8b 100644
41969 --- a/drivers/infiniband/core/cm.c
41970 +++ b/drivers/infiniband/core/cm.c
41971 @@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
41972
41973 struct cm_counter_group {
41974 struct kobject obj;
41975 - atomic_long_t counter[CM_ATTR_COUNT];
41976 + atomic_long_unchecked_t counter[CM_ATTR_COUNT];
41977 };
41978
41979 struct cm_counter_attribute {
41980 @@ -1398,7 +1398,7 @@ static void cm_dup_req_handler(struct cm_work *work,
41981 struct ib_mad_send_buf *msg = NULL;
41982 int ret;
41983
41984 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
41985 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
41986 counter[CM_REQ_COUNTER]);
41987
41988 /* Quick state check to discard duplicate REQs. */
41989 @@ -1785,7 +1785,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
41990 if (!cm_id_priv)
41991 return;
41992
41993 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
41994 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
41995 counter[CM_REP_COUNTER]);
41996 ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
41997 if (ret)
41998 @@ -1952,7 +1952,7 @@ static int cm_rtu_handler(struct cm_work *work)
41999 if (cm_id_priv->id.state != IB_CM_REP_SENT &&
42000 cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
42001 spin_unlock_irq(&cm_id_priv->lock);
42002 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42003 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42004 counter[CM_RTU_COUNTER]);
42005 goto out;
42006 }
42007 @@ -2135,7 +2135,7 @@ static int cm_dreq_handler(struct cm_work *work)
42008 cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
42009 dreq_msg->local_comm_id);
42010 if (!cm_id_priv) {
42011 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42012 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42013 counter[CM_DREQ_COUNTER]);
42014 cm_issue_drep(work->port, work->mad_recv_wc);
42015 return -EINVAL;
42016 @@ -2160,7 +2160,7 @@ static int cm_dreq_handler(struct cm_work *work)
42017 case IB_CM_MRA_REP_RCVD:
42018 break;
42019 case IB_CM_TIMEWAIT:
42020 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42021 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42022 counter[CM_DREQ_COUNTER]);
42023 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
42024 goto unlock;
42025 @@ -2174,7 +2174,7 @@ static int cm_dreq_handler(struct cm_work *work)
42026 cm_free_msg(msg);
42027 goto deref;
42028 case IB_CM_DREQ_RCVD:
42029 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42030 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42031 counter[CM_DREQ_COUNTER]);
42032 goto unlock;
42033 default:
42034 @@ -2541,7 +2541,7 @@ static int cm_mra_handler(struct cm_work *work)
42035 ib_modify_mad(cm_id_priv->av.port->mad_agent,
42036 cm_id_priv->msg, timeout)) {
42037 if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
42038 - atomic_long_inc(&work->port->
42039 + atomic_long_inc_unchecked(&work->port->
42040 counter_group[CM_RECV_DUPLICATES].
42041 counter[CM_MRA_COUNTER]);
42042 goto out;
42043 @@ -2550,7 +2550,7 @@ static int cm_mra_handler(struct cm_work *work)
42044 break;
42045 case IB_CM_MRA_REQ_RCVD:
42046 case IB_CM_MRA_REP_RCVD:
42047 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42048 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42049 counter[CM_MRA_COUNTER]);
42050 /* fall through */
42051 default:
42052 @@ -2712,7 +2712,7 @@ static int cm_lap_handler(struct cm_work *work)
42053 case IB_CM_LAP_IDLE:
42054 break;
42055 case IB_CM_MRA_LAP_SENT:
42056 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42057 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42058 counter[CM_LAP_COUNTER]);
42059 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
42060 goto unlock;
42061 @@ -2728,7 +2728,7 @@ static int cm_lap_handler(struct cm_work *work)
42062 cm_free_msg(msg);
42063 goto deref;
42064 case IB_CM_LAP_RCVD:
42065 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42066 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42067 counter[CM_LAP_COUNTER]);
42068 goto unlock;
42069 default:
42070 @@ -3012,7 +3012,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
42071 cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
42072 if (cur_cm_id_priv) {
42073 spin_unlock_irq(&cm.lock);
42074 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
42075 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
42076 counter[CM_SIDR_REQ_COUNTER]);
42077 goto out; /* Duplicate message. */
42078 }
42079 @@ -3224,10 +3224,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
42080 if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
42081 msg->retries = 1;
42082
42083 - atomic_long_add(1 + msg->retries,
42084 + atomic_long_add_unchecked(1 + msg->retries,
42085 &port->counter_group[CM_XMIT].counter[attr_index]);
42086 if (msg->retries)
42087 - atomic_long_add(msg->retries,
42088 + atomic_long_add_unchecked(msg->retries,
42089 &port->counter_group[CM_XMIT_RETRIES].
42090 counter[attr_index]);
42091
42092 @@ -3437,7 +3437,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
42093 }
42094
42095 attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
42096 - atomic_long_inc(&port->counter_group[CM_RECV].
42097 + atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
42098 counter[attr_id - CM_ATTR_ID_OFFSET]);
42099
42100 work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
42101 @@ -3668,7 +3668,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
42102 cm_attr = container_of(attr, struct cm_counter_attribute, attr);
42103
42104 return sprintf(buf, "%ld\n",
42105 - atomic_long_read(&group->counter[cm_attr->index]));
42106 + atomic_long_read_unchecked(&group->counter[cm_attr->index]));
42107 }
42108
42109 static const struct sysfs_ops cm_counter_ops = {
42110 diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
42111 index 9f5ad7c..588cd84 100644
42112 --- a/drivers/infiniband/core/fmr_pool.c
42113 +++ b/drivers/infiniband/core/fmr_pool.c
42114 @@ -98,8 +98,8 @@ struct ib_fmr_pool {
42115
42116 struct task_struct *thread;
42117
42118 - atomic_t req_ser;
42119 - atomic_t flush_ser;
42120 + atomic_unchecked_t req_ser;
42121 + atomic_unchecked_t flush_ser;
42122
42123 wait_queue_head_t force_wait;
42124 };
42125 @@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
42126 struct ib_fmr_pool *pool = pool_ptr;
42127
42128 do {
42129 - if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
42130 + if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
42131 ib_fmr_batch_release(pool);
42132
42133 - atomic_inc(&pool->flush_ser);
42134 + atomic_inc_unchecked(&pool->flush_ser);
42135 wake_up_interruptible(&pool->force_wait);
42136
42137 if (pool->flush_function)
42138 @@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
42139 }
42140
42141 set_current_state(TASK_INTERRUPTIBLE);
42142 - if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
42143 + if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
42144 !kthread_should_stop())
42145 schedule();
42146 __set_current_state(TASK_RUNNING);
42147 @@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
42148 pool->dirty_watermark = params->dirty_watermark;
42149 pool->dirty_len = 0;
42150 spin_lock_init(&pool->pool_lock);
42151 - atomic_set(&pool->req_ser, 0);
42152 - atomic_set(&pool->flush_ser, 0);
42153 + atomic_set_unchecked(&pool->req_ser, 0);
42154 + atomic_set_unchecked(&pool->flush_ser, 0);
42155 init_waitqueue_head(&pool->force_wait);
42156
42157 pool->thread = kthread_run(ib_fmr_cleanup_thread,
42158 @@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
42159 }
42160 spin_unlock_irq(&pool->pool_lock);
42161
42162 - serial = atomic_inc_return(&pool->req_ser);
42163 + serial = atomic_inc_return_unchecked(&pool->req_ser);
42164 wake_up_process(pool->thread);
42165
42166 if (wait_event_interruptible(pool->force_wait,
42167 - atomic_read(&pool->flush_ser) - serial >= 0))
42168 + atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
42169 return -EINTR;
42170
42171 return 0;
42172 @@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
42173 } else {
42174 list_add_tail(&fmr->list, &pool->dirty_list);
42175 if (++pool->dirty_len >= pool->dirty_watermark) {
42176 - atomic_inc(&pool->req_ser);
42177 + atomic_inc_unchecked(&pool->req_ser);
42178 wake_up_process(pool->thread);
42179 }
42180 }
42181 diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
42182 index ec7a298..8742e59 100644
42183 --- a/drivers/infiniband/hw/cxgb4/mem.c
42184 +++ b/drivers/infiniband/hw/cxgb4/mem.c
42185 @@ -249,7 +249,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
42186 int err;
42187 struct fw_ri_tpte tpt;
42188 u32 stag_idx;
42189 - static atomic_t key;
42190 + static atomic_unchecked_t key;
42191
42192 if (c4iw_fatal_error(rdev))
42193 return -EIO;
42194 @@ -270,7 +270,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
42195 if (rdev->stats.stag.cur > rdev->stats.stag.max)
42196 rdev->stats.stag.max = rdev->stats.stag.cur;
42197 mutex_unlock(&rdev->stats.lock);
42198 - *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
42199 + *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
42200 }
42201 PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
42202 __func__, stag_state, type, pdid, stag_idx);
42203 diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
42204 index 79b3dbc..96e5fcc 100644
42205 --- a/drivers/infiniband/hw/ipath/ipath_rc.c
42206 +++ b/drivers/infiniband/hw/ipath/ipath_rc.c
42207 @@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
42208 struct ib_atomic_eth *ateth;
42209 struct ipath_ack_entry *e;
42210 u64 vaddr;
42211 - atomic64_t *maddr;
42212 + atomic64_unchecked_t *maddr;
42213 u64 sdata;
42214 u32 rkey;
42215 u8 next;
42216 @@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
42217 IB_ACCESS_REMOTE_ATOMIC)))
42218 goto nack_acc_unlck;
42219 /* Perform atomic OP and save result. */
42220 - maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
42221 + maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
42222 sdata = be64_to_cpu(ateth->swap_data);
42223 e = &qp->s_ack_queue[qp->r_head_ack_queue];
42224 e->atomic_data = (opcode == OP(FETCH_ADD)) ?
42225 - (u64) atomic64_add_return(sdata, maddr) - sdata :
42226 + (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
42227 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
42228 be64_to_cpu(ateth->compare_data),
42229 sdata);
42230 diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
42231 index 1f95bba..9530f87 100644
42232 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c
42233 +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
42234 @@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
42235 unsigned long flags;
42236 struct ib_wc wc;
42237 u64 sdata;
42238 - atomic64_t *maddr;
42239 + atomic64_unchecked_t *maddr;
42240 enum ib_wc_status send_status;
42241
42242 /*
42243 @@ -382,11 +382,11 @@ again:
42244 IB_ACCESS_REMOTE_ATOMIC)))
42245 goto acc_err;
42246 /* Perform atomic OP and save result. */
42247 - maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
42248 + maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
42249 sdata = wqe->wr.wr.atomic.compare_add;
42250 *(u64 *) sqp->s_sge.sge.vaddr =
42251 (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
42252 - (u64) atomic64_add_return(sdata, maddr) - sdata :
42253 + (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
42254 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
42255 sdata, wqe->wr.wr.atomic.swap);
42256 goto send_comp;
42257 diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
42258 index fd36ec6..a6a082f 100644
42259 --- a/drivers/infiniband/hw/mlx4/mad.c
42260 +++ b/drivers/infiniband/hw/mlx4/mad.c
42261 @@ -98,7 +98,7 @@ __be64 mlx4_ib_gen_node_guid(void)
42262
42263 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
42264 {
42265 - return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
42266 + return cpu_to_be64(atomic_inc_return_unchecked(&ctx->tid)) |
42267 cpu_to_be64(0xff00000000000000LL);
42268 }
42269
42270 diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
42271 index ed327e6..ca1739e0 100644
42272 --- a/drivers/infiniband/hw/mlx4/mcg.c
42273 +++ b/drivers/infiniband/hw/mlx4/mcg.c
42274 @@ -1041,7 +1041,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
42275 {
42276 char name[20];
42277
42278 - atomic_set(&ctx->tid, 0);
42279 + atomic_set_unchecked(&ctx->tid, 0);
42280 sprintf(name, "mlx4_ib_mcg%d", ctx->port);
42281 ctx->mcg_wq = create_singlethread_workqueue(name);
42282 if (!ctx->mcg_wq)
42283 diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
42284 index 66b0b7d..f14836a 100644
42285 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
42286 +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
42287 @@ -425,7 +425,7 @@ struct mlx4_ib_demux_ctx {
42288 struct list_head mcg_mgid0_list;
42289 struct workqueue_struct *mcg_wq;
42290 struct mlx4_ib_demux_pv_ctx **tun;
42291 - atomic_t tid;
42292 + atomic_unchecked_t tid;
42293 int flushing; /* flushing the work queue */
42294 };
42295
42296 diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
42297 index 9d3e5c1..6f166df 100644
42298 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c
42299 +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
42300 @@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
42301 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
42302 }
42303
42304 -int mthca_QUERY_FW(struct mthca_dev *dev)
42305 +int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
42306 {
42307 struct mthca_mailbox *mailbox;
42308 u32 *outbox;
42309 @@ -1612,7 +1612,7 @@ int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
42310 CMD_TIME_CLASS_B);
42311 }
42312
42313 -int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
42314 +int __intentional_overflow(-1) mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
42315 int num_mtt)
42316 {
42317 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
42318 @@ -1634,7 +1634,7 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
42319 0, CMD_MAP_EQ, CMD_TIME_CLASS_B);
42320 }
42321
42322 -int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
42323 +int __intentional_overflow(-1) mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
42324 int eq_num)
42325 {
42326 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
42327 @@ -1857,7 +1857,7 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn)
42328 CMD_TIME_CLASS_B);
42329 }
42330
42331 -int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
42332 +int __intentional_overflow(-1) mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
42333 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
42334 void *in_mad, void *response_mad)
42335 {
42336 diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
42337 index ded76c1..0cf0a08 100644
42338 --- a/drivers/infiniband/hw/mthca/mthca_main.c
42339 +++ b/drivers/infiniband/hw/mthca/mthca_main.c
42340 @@ -692,7 +692,7 @@ err_close:
42341 return err;
42342 }
42343
42344 -static int mthca_setup_hca(struct mthca_dev *dev)
42345 +static int __intentional_overflow(-1) mthca_setup_hca(struct mthca_dev *dev)
42346 {
42347 int err;
42348
42349 diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
42350 index ed9a989..6aa5dc2 100644
42351 --- a/drivers/infiniband/hw/mthca/mthca_mr.c
42352 +++ b/drivers/infiniband/hw/mthca/mthca_mr.c
42353 @@ -81,7 +81,7 @@ struct mthca_mpt_entry {
42354 * through the bitmaps)
42355 */
42356
42357 -static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
42358 +static u32 __intentional_overflow(-1) mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
42359 {
42360 int o;
42361 int m;
42362 @@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
42363 return key;
42364 }
42365
42366 -int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
42367 +int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
42368 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
42369 {
42370 struct mthca_mailbox *mailbox;
42371 @@ -516,7 +516,7 @@ int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
42372 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
42373 }
42374
42375 -int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
42376 +int __intentional_overflow(-1) mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
42377 u64 *buffer_list, int buffer_size_shift,
42378 int list_len, u64 iova, u64 total_size,
42379 u32 access, struct mthca_mr *mr)
42380 diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
42381 index 415f8e1..e34214e 100644
42382 --- a/drivers/infiniband/hw/mthca/mthca_provider.c
42383 +++ b/drivers/infiniband/hw/mthca/mthca_provider.c
42384 @@ -764,7 +764,7 @@ unlock:
42385 return 0;
42386 }
42387
42388 -static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
42389 +static int __intentional_overflow(-1) mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
42390 {
42391 struct mthca_dev *dev = to_mdev(ibcq->device);
42392 struct mthca_cq *cq = to_mcq(ibcq);
42393 diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
42394 index 353c7b0..c6ce921 100644
42395 --- a/drivers/infiniband/hw/nes/nes.c
42396 +++ b/drivers/infiniband/hw/nes/nes.c
42397 @@ -98,7 +98,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
42398 LIST_HEAD(nes_adapter_list);
42399 static LIST_HEAD(nes_dev_list);
42400
42401 -atomic_t qps_destroyed;
42402 +atomic_unchecked_t qps_destroyed;
42403
42404 static unsigned int ee_flsh_adapter;
42405 static unsigned int sysfs_nonidx_addr;
42406 @@ -269,7 +269,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
42407 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
42408 struct nes_adapter *nesadapter = nesdev->nesadapter;
42409
42410 - atomic_inc(&qps_destroyed);
42411 + atomic_inc_unchecked(&qps_destroyed);
42412
42413 /* Free the control structures */
42414
42415 diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
42416 index 33cc589..3bd6538 100644
42417 --- a/drivers/infiniband/hw/nes/nes.h
42418 +++ b/drivers/infiniband/hw/nes/nes.h
42419 @@ -177,17 +177,17 @@ extern unsigned int nes_debug_level;
42420 extern unsigned int wqm_quanta;
42421 extern struct list_head nes_adapter_list;
42422
42423 -extern atomic_t cm_connects;
42424 -extern atomic_t cm_accepts;
42425 -extern atomic_t cm_disconnects;
42426 -extern atomic_t cm_closes;
42427 -extern atomic_t cm_connecteds;
42428 -extern atomic_t cm_connect_reqs;
42429 -extern atomic_t cm_rejects;
42430 -extern atomic_t mod_qp_timouts;
42431 -extern atomic_t qps_created;
42432 -extern atomic_t qps_destroyed;
42433 -extern atomic_t sw_qps_destroyed;
42434 +extern atomic_unchecked_t cm_connects;
42435 +extern atomic_unchecked_t cm_accepts;
42436 +extern atomic_unchecked_t cm_disconnects;
42437 +extern atomic_unchecked_t cm_closes;
42438 +extern atomic_unchecked_t cm_connecteds;
42439 +extern atomic_unchecked_t cm_connect_reqs;
42440 +extern atomic_unchecked_t cm_rejects;
42441 +extern atomic_unchecked_t mod_qp_timouts;
42442 +extern atomic_unchecked_t qps_created;
42443 +extern atomic_unchecked_t qps_destroyed;
42444 +extern atomic_unchecked_t sw_qps_destroyed;
42445 extern u32 mh_detected;
42446 extern u32 mh_pauses_sent;
42447 extern u32 cm_packets_sent;
42448 @@ -196,16 +196,16 @@ extern u32 cm_packets_created;
42449 extern u32 cm_packets_received;
42450 extern u32 cm_packets_dropped;
42451 extern u32 cm_packets_retrans;
42452 -extern atomic_t cm_listens_created;
42453 -extern atomic_t cm_listens_destroyed;
42454 +extern atomic_unchecked_t cm_listens_created;
42455 +extern atomic_unchecked_t cm_listens_destroyed;
42456 extern u32 cm_backlog_drops;
42457 -extern atomic_t cm_loopbacks;
42458 -extern atomic_t cm_nodes_created;
42459 -extern atomic_t cm_nodes_destroyed;
42460 -extern atomic_t cm_accel_dropped_pkts;
42461 -extern atomic_t cm_resets_recvd;
42462 -extern atomic_t pau_qps_created;
42463 -extern atomic_t pau_qps_destroyed;
42464 +extern atomic_unchecked_t cm_loopbacks;
42465 +extern atomic_unchecked_t cm_nodes_created;
42466 +extern atomic_unchecked_t cm_nodes_destroyed;
42467 +extern atomic_unchecked_t cm_accel_dropped_pkts;
42468 +extern atomic_unchecked_t cm_resets_recvd;
42469 +extern atomic_unchecked_t pau_qps_created;
42470 +extern atomic_unchecked_t pau_qps_destroyed;
42471
42472 extern u32 int_mod_timer_init;
42473 extern u32 int_mod_cq_depth_256;
42474 diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
42475 index dfa9df4..6bf7221 100644
42476 --- a/drivers/infiniband/hw/nes/nes_cm.c
42477 +++ b/drivers/infiniband/hw/nes/nes_cm.c
42478 @@ -68,14 +68,14 @@ u32 cm_packets_dropped;
42479 u32 cm_packets_retrans;
42480 u32 cm_packets_created;
42481 u32 cm_packets_received;
42482 -atomic_t cm_listens_created;
42483 -atomic_t cm_listens_destroyed;
42484 +atomic_unchecked_t cm_listens_created;
42485 +atomic_unchecked_t cm_listens_destroyed;
42486 u32 cm_backlog_drops;
42487 -atomic_t cm_loopbacks;
42488 -atomic_t cm_nodes_created;
42489 -atomic_t cm_nodes_destroyed;
42490 -atomic_t cm_accel_dropped_pkts;
42491 -atomic_t cm_resets_recvd;
42492 +atomic_unchecked_t cm_loopbacks;
42493 +atomic_unchecked_t cm_nodes_created;
42494 +atomic_unchecked_t cm_nodes_destroyed;
42495 +atomic_unchecked_t cm_accel_dropped_pkts;
42496 +atomic_unchecked_t cm_resets_recvd;
42497
42498 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
42499 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
42500 @@ -134,28 +134,28 @@ static void record_ird_ord(struct nes_cm_node *, u16, u16);
42501 /* instance of function pointers for client API */
42502 /* set address of this instance to cm_core->cm_ops at cm_core alloc */
42503 static struct nes_cm_ops nes_cm_api = {
42504 - mini_cm_accelerated,
42505 - mini_cm_listen,
42506 - mini_cm_del_listen,
42507 - mini_cm_connect,
42508 - mini_cm_close,
42509 - mini_cm_accept,
42510 - mini_cm_reject,
42511 - mini_cm_recv_pkt,
42512 - mini_cm_dealloc_core,
42513 - mini_cm_get,
42514 - mini_cm_set
42515 + .accelerated = mini_cm_accelerated,
42516 + .listen = mini_cm_listen,
42517 + .stop_listener = mini_cm_del_listen,
42518 + .connect = mini_cm_connect,
42519 + .close = mini_cm_close,
42520 + .accept = mini_cm_accept,
42521 + .reject = mini_cm_reject,
42522 + .recv_pkt = mini_cm_recv_pkt,
42523 + .destroy_cm_core = mini_cm_dealloc_core,
42524 + .get = mini_cm_get,
42525 + .set = mini_cm_set
42526 };
42527
42528 static struct nes_cm_core *g_cm_core;
42529
42530 -atomic_t cm_connects;
42531 -atomic_t cm_accepts;
42532 -atomic_t cm_disconnects;
42533 -atomic_t cm_closes;
42534 -atomic_t cm_connecteds;
42535 -atomic_t cm_connect_reqs;
42536 -atomic_t cm_rejects;
42537 +atomic_unchecked_t cm_connects;
42538 +atomic_unchecked_t cm_accepts;
42539 +atomic_unchecked_t cm_disconnects;
42540 +atomic_unchecked_t cm_closes;
42541 +atomic_unchecked_t cm_connecteds;
42542 +atomic_unchecked_t cm_connect_reqs;
42543 +atomic_unchecked_t cm_rejects;
42544
42545 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
42546 {
42547 @@ -1319,7 +1319,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
42548 kfree(listener);
42549 listener = NULL;
42550 ret = 0;
42551 - atomic_inc(&cm_listens_destroyed);
42552 + atomic_inc_unchecked(&cm_listens_destroyed);
42553 } else {
42554 spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
42555 }
42556 @@ -1513,7 +1513,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
42557 cm_node->rem_mac);
42558
42559 add_hte_node(cm_core, cm_node);
42560 - atomic_inc(&cm_nodes_created);
42561 + atomic_inc_unchecked(&cm_nodes_created);
42562
42563 return cm_node;
42564 }
42565 @@ -1571,7 +1571,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
42566 }
42567
42568 atomic_dec(&cm_core->node_cnt);
42569 - atomic_inc(&cm_nodes_destroyed);
42570 + atomic_inc_unchecked(&cm_nodes_destroyed);
42571 nesqp = cm_node->nesqp;
42572 if (nesqp) {
42573 nesqp->cm_node = NULL;
42574 @@ -1635,7 +1635,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
42575
42576 static void drop_packet(struct sk_buff *skb)
42577 {
42578 - atomic_inc(&cm_accel_dropped_pkts);
42579 + atomic_inc_unchecked(&cm_accel_dropped_pkts);
42580 dev_kfree_skb_any(skb);
42581 }
42582
42583 @@ -1698,7 +1698,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
42584 {
42585
42586 int reset = 0; /* whether to send reset in case of err.. */
42587 - atomic_inc(&cm_resets_recvd);
42588 + atomic_inc_unchecked(&cm_resets_recvd);
42589 nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
42590 " refcnt=%d\n", cm_node, cm_node->state,
42591 atomic_read(&cm_node->ref_count));
42592 @@ -2339,7 +2339,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
42593 rem_ref_cm_node(cm_node->cm_core, cm_node);
42594 return NULL;
42595 }
42596 - atomic_inc(&cm_loopbacks);
42597 + atomic_inc_unchecked(&cm_loopbacks);
42598 loopbackremotenode->loopbackpartner = cm_node;
42599 loopbackremotenode->tcp_cntxt.rcv_wscale =
42600 NES_CM_DEFAULT_RCV_WND_SCALE;
42601 @@ -2614,7 +2614,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
42602 nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
42603 else {
42604 rem_ref_cm_node(cm_core, cm_node);
42605 - atomic_inc(&cm_accel_dropped_pkts);
42606 + atomic_inc_unchecked(&cm_accel_dropped_pkts);
42607 dev_kfree_skb_any(skb);
42608 }
42609 break;
42610 @@ -2922,7 +2922,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
42611
42612 if ((cm_id) && (cm_id->event_handler)) {
42613 if (issue_disconn) {
42614 - atomic_inc(&cm_disconnects);
42615 + atomic_inc_unchecked(&cm_disconnects);
42616 cm_event.event = IW_CM_EVENT_DISCONNECT;
42617 cm_event.status = disconn_status;
42618 cm_event.local_addr = cm_id->local_addr;
42619 @@ -2944,7 +2944,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
42620 }
42621
42622 if (issue_close) {
42623 - atomic_inc(&cm_closes);
42624 + atomic_inc_unchecked(&cm_closes);
42625 nes_disconnect(nesqp, 1);
42626
42627 cm_id->provider_data = nesqp;
42628 @@ -3082,7 +3082,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
42629
42630 nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
42631 nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
42632 - atomic_inc(&cm_accepts);
42633 + atomic_inc_unchecked(&cm_accepts);
42634
42635 nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
42636 netdev_refcnt_read(nesvnic->netdev));
42637 @@ -3278,7 +3278,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
42638 struct nes_cm_core *cm_core;
42639 u8 *start_buff;
42640
42641 - atomic_inc(&cm_rejects);
42642 + atomic_inc_unchecked(&cm_rejects);
42643 cm_node = (struct nes_cm_node *)cm_id->provider_data;
42644 loopback = cm_node->loopbackpartner;
42645 cm_core = cm_node->cm_core;
42646 @@ -3340,7 +3340,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
42647 ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
42648 ntohs(laddr->sin_port));
42649
42650 - atomic_inc(&cm_connects);
42651 + atomic_inc_unchecked(&cm_connects);
42652 nesqp->active_conn = 1;
42653
42654 /* cache the cm_id in the qp */
42655 @@ -3451,7 +3451,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
42656 g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
42657 return err;
42658 }
42659 - atomic_inc(&cm_listens_created);
42660 + atomic_inc_unchecked(&cm_listens_created);
42661 }
42662
42663 cm_id->add_ref(cm_id);
42664 @@ -3558,7 +3558,7 @@ static void cm_event_connected(struct nes_cm_event *event)
42665
42666 if (nesqp->destroyed)
42667 return;
42668 - atomic_inc(&cm_connecteds);
42669 + atomic_inc_unchecked(&cm_connecteds);
42670 nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
42671 " local port 0x%04X. jiffies = %lu.\n",
42672 nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
42673 @@ -3741,7 +3741,7 @@ static void cm_event_reset(struct nes_cm_event *event)
42674
42675 cm_id->add_ref(cm_id);
42676 ret = cm_id->event_handler(cm_id, &cm_event);
42677 - atomic_inc(&cm_closes);
42678 + atomic_inc_unchecked(&cm_closes);
42679 cm_event.event = IW_CM_EVENT_CLOSE;
42680 cm_event.status = 0;
42681 cm_event.provider_data = cm_id->provider_data;
42682 @@ -3781,7 +3781,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
42683 return;
42684 cm_id = cm_node->cm_id;
42685
42686 - atomic_inc(&cm_connect_reqs);
42687 + atomic_inc_unchecked(&cm_connect_reqs);
42688 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
42689 cm_node, cm_id, jiffies);
42690
42691 @@ -3830,7 +3830,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
42692 return;
42693 cm_id = cm_node->cm_id;
42694
42695 - atomic_inc(&cm_connect_reqs);
42696 + atomic_inc_unchecked(&cm_connect_reqs);
42697 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
42698 cm_node, cm_id, jiffies);
42699
42700 diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
42701 index 4166452..fc952c3 100644
42702 --- a/drivers/infiniband/hw/nes/nes_mgt.c
42703 +++ b/drivers/infiniband/hw/nes/nes_mgt.c
42704 @@ -40,8 +40,8 @@
42705 #include "nes.h"
42706 #include "nes_mgt.h"
42707
42708 -atomic_t pau_qps_created;
42709 -atomic_t pau_qps_destroyed;
42710 +atomic_unchecked_t pau_qps_created;
42711 +atomic_unchecked_t pau_qps_destroyed;
42712
42713 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
42714 {
42715 @@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
42716 {
42717 struct sk_buff *skb;
42718 unsigned long flags;
42719 - atomic_inc(&pau_qps_destroyed);
42720 + atomic_inc_unchecked(&pau_qps_destroyed);
42721
42722 /* Free packets that have not yet been forwarded */
42723 /* Lock is acquired by skb_dequeue when removing the skb */
42724 @@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
42725 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
42726 skb_queue_head_init(&nesqp->pau_list);
42727 spin_lock_init(&nesqp->pau_lock);
42728 - atomic_inc(&pau_qps_created);
42729 + atomic_inc_unchecked(&pau_qps_created);
42730 nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
42731 }
42732
42733 diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
42734 index 49eb511..a774366 100644
42735 --- a/drivers/infiniband/hw/nes/nes_nic.c
42736 +++ b/drivers/infiniband/hw/nes/nes_nic.c
42737 @@ -1273,39 +1273,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
42738 target_stat_values[++index] = mh_detected;
42739 target_stat_values[++index] = mh_pauses_sent;
42740 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
42741 - target_stat_values[++index] = atomic_read(&cm_connects);
42742 - target_stat_values[++index] = atomic_read(&cm_accepts);
42743 - target_stat_values[++index] = atomic_read(&cm_disconnects);
42744 - target_stat_values[++index] = atomic_read(&cm_connecteds);
42745 - target_stat_values[++index] = atomic_read(&cm_connect_reqs);
42746 - target_stat_values[++index] = atomic_read(&cm_rejects);
42747 - target_stat_values[++index] = atomic_read(&mod_qp_timouts);
42748 - target_stat_values[++index] = atomic_read(&qps_created);
42749 - target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
42750 - target_stat_values[++index] = atomic_read(&qps_destroyed);
42751 - target_stat_values[++index] = atomic_read(&cm_closes);
42752 + target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
42753 + target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
42754 + target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
42755 + target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
42756 + target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
42757 + target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
42758 + target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
42759 + target_stat_values[++index] = atomic_read_unchecked(&qps_created);
42760 + target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
42761 + target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
42762 + target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
42763 target_stat_values[++index] = cm_packets_sent;
42764 target_stat_values[++index] = cm_packets_bounced;
42765 target_stat_values[++index] = cm_packets_created;
42766 target_stat_values[++index] = cm_packets_received;
42767 target_stat_values[++index] = cm_packets_dropped;
42768 target_stat_values[++index] = cm_packets_retrans;
42769 - target_stat_values[++index] = atomic_read(&cm_listens_created);
42770 - target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
42771 + target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
42772 + target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
42773 target_stat_values[++index] = cm_backlog_drops;
42774 - target_stat_values[++index] = atomic_read(&cm_loopbacks);
42775 - target_stat_values[++index] = atomic_read(&cm_nodes_created);
42776 - target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
42777 - target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
42778 - target_stat_values[++index] = atomic_read(&cm_resets_recvd);
42779 + target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
42780 + target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
42781 + target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
42782 + target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
42783 + target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
42784 target_stat_values[++index] = nesadapter->free_4kpbl;
42785 target_stat_values[++index] = nesadapter->free_256pbl;
42786 target_stat_values[++index] = int_mod_timer_init;
42787 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
42788 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
42789 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
42790 - target_stat_values[++index] = atomic_read(&pau_qps_created);
42791 - target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
42792 + target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
42793 + target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
42794 }
42795
42796 /**
42797 diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
42798 index 218dd35..97ce31d 100644
42799 --- a/drivers/infiniband/hw/nes/nes_verbs.c
42800 +++ b/drivers/infiniband/hw/nes/nes_verbs.c
42801 @@ -46,9 +46,9 @@
42802
42803 #include <rdma/ib_umem.h>
42804
42805 -atomic_t mod_qp_timouts;
42806 -atomic_t qps_created;
42807 -atomic_t sw_qps_destroyed;
42808 +atomic_unchecked_t mod_qp_timouts;
42809 +atomic_unchecked_t qps_created;
42810 +atomic_unchecked_t sw_qps_destroyed;
42811
42812 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
42813
42814 @@ -1134,7 +1134,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
42815 if (init_attr->create_flags)
42816 return ERR_PTR(-EINVAL);
42817
42818 - atomic_inc(&qps_created);
42819 + atomic_inc_unchecked(&qps_created);
42820 switch (init_attr->qp_type) {
42821 case IB_QPT_RC:
42822 if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
42823 @@ -1468,7 +1468,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
42824 struct iw_cm_event cm_event;
42825 int ret = 0;
42826
42827 - atomic_inc(&sw_qps_destroyed);
42828 + atomic_inc_unchecked(&sw_qps_destroyed);
42829 nesqp->destroyed = 1;
42830
42831 /* Blow away the connection if it exists. */
42832 diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
42833 index c00ae09..04e91be 100644
42834 --- a/drivers/infiniband/hw/qib/qib.h
42835 +++ b/drivers/infiniband/hw/qib/qib.h
42836 @@ -52,6 +52,7 @@
42837 #include <linux/kref.h>
42838 #include <linux/sched.h>
42839 #include <linux/kthread.h>
42840 +#include <linux/slab.h>
42841
42842 #include "qib_common.h"
42843 #include "qib_verbs.h"
42844 diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
42845 index 24c41ba..102d71f 100644
42846 --- a/drivers/input/gameport/gameport.c
42847 +++ b/drivers/input/gameport/gameport.c
42848 @@ -490,14 +490,14 @@ EXPORT_SYMBOL(gameport_set_phys);
42849 */
42850 static void gameport_init_port(struct gameport *gameport)
42851 {
42852 - static atomic_t gameport_no = ATOMIC_INIT(0);
42853 + static atomic_unchecked_t gameport_no = ATOMIC_INIT(0);
42854
42855 __module_get(THIS_MODULE);
42856
42857 mutex_init(&gameport->drv_mutex);
42858 device_initialize(&gameport->dev);
42859 dev_set_name(&gameport->dev, "gameport%lu",
42860 - (unsigned long)atomic_inc_return(&gameport_no) - 1);
42861 + (unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1);
42862 gameport->dev.bus = &gameport_bus;
42863 gameport->dev.release = gameport_release_port;
42864 if (gameport->parent)
42865 diff --git a/drivers/input/input.c b/drivers/input/input.c
42866 index 1c4c0db..6f7abe3 100644
42867 --- a/drivers/input/input.c
42868 +++ b/drivers/input/input.c
42869 @@ -1772,7 +1772,7 @@ EXPORT_SYMBOL_GPL(input_class);
42870 */
42871 struct input_dev *input_allocate_device(void)
42872 {
42873 - static atomic_t input_no = ATOMIC_INIT(0);
42874 + static atomic_unchecked_t input_no = ATOMIC_INIT(0);
42875 struct input_dev *dev;
42876
42877 dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
42878 @@ -1787,7 +1787,7 @@ struct input_dev *input_allocate_device(void)
42879 INIT_LIST_HEAD(&dev->node);
42880
42881 dev_set_name(&dev->dev, "input%ld",
42882 - (unsigned long) atomic_inc_return(&input_no) - 1);
42883 + (unsigned long) atomic_inc_return_unchecked(&input_no) - 1);
42884
42885 __module_get(THIS_MODULE);
42886 }
42887 diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
42888 index 4a95b22..874c182 100644
42889 --- a/drivers/input/joystick/sidewinder.c
42890 +++ b/drivers/input/joystick/sidewinder.c
42891 @@ -30,6 +30,7 @@
42892 #include <linux/kernel.h>
42893 #include <linux/module.h>
42894 #include <linux/slab.h>
42895 +#include <linux/sched.h>
42896 #include <linux/input.h>
42897 #include <linux/gameport.h>
42898 #include <linux/jiffies.h>
42899 diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
42900 index 603fe0d..f63decc 100644
42901 --- a/drivers/input/joystick/xpad.c
42902 +++ b/drivers/input/joystick/xpad.c
42903 @@ -737,7 +737,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
42904
42905 static int xpad_led_probe(struct usb_xpad *xpad)
42906 {
42907 - static atomic_t led_seq = ATOMIC_INIT(0);
42908 + static atomic_unchecked_t led_seq = ATOMIC_INIT(0);
42909 long led_no;
42910 struct xpad_led *led;
42911 struct led_classdev *led_cdev;
42912 @@ -750,7 +750,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
42913 if (!led)
42914 return -ENOMEM;
42915
42916 - led_no = (long)atomic_inc_return(&led_seq) - 1;
42917 + led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1;
42918
42919 snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
42920 led->xpad = xpad;
42921 diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
42922 index 5a73639..d586683 100644
42923 --- a/drivers/input/misc/ims-pcu.c
42924 +++ b/drivers/input/misc/ims-pcu.c
42925 @@ -1850,7 +1850,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
42926
42927 static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
42928 {
42929 - static atomic_t device_no = ATOMIC_INIT(0);
42930 + static atomic_unchecked_t device_no = ATOMIC_INIT(0);
42931
42932 const struct ims_pcu_device_info *info;
42933 int error;
42934 @@ -1881,7 +1881,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
42935 }
42936
42937 /* Device appears to be operable, complete initialization */
42938 - pcu->device_no = atomic_inc_return(&device_no) - 1;
42939 + pcu->device_no = atomic_inc_return_unchecked(&device_no) - 1;
42940
42941 /*
42942 * PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
42943 diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
42944 index 2f0b39d..7370f13 100644
42945 --- a/drivers/input/mouse/psmouse.h
42946 +++ b/drivers/input/mouse/psmouse.h
42947 @@ -116,7 +116,7 @@ struct psmouse_attribute {
42948 ssize_t (*set)(struct psmouse *psmouse, void *data,
42949 const char *buf, size_t count);
42950 bool protect;
42951 -};
42952 +} __do_const;
42953 #define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
42954
42955 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
42956 diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
42957 index b604564..3f14ae4 100644
42958 --- a/drivers/input/mousedev.c
42959 +++ b/drivers/input/mousedev.c
42960 @@ -744,7 +744,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
42961
42962 spin_unlock_irq(&client->packet_lock);
42963
42964 - if (copy_to_user(buffer, data, count))
42965 + if (count > sizeof(data) || copy_to_user(buffer, data, count))
42966 return -EFAULT;
42967
42968 return count;
42969 diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
42970 index b29134d..394deb0 100644
42971 --- a/drivers/input/serio/serio.c
42972 +++ b/drivers/input/serio/serio.c
42973 @@ -514,7 +514,7 @@ static void serio_release_port(struct device *dev)
42974 */
42975 static void serio_init_port(struct serio *serio)
42976 {
42977 - static atomic_t serio_no = ATOMIC_INIT(0);
42978 + static atomic_unchecked_t serio_no = ATOMIC_INIT(0);
42979
42980 __module_get(THIS_MODULE);
42981
42982 @@ -525,7 +525,7 @@ static void serio_init_port(struct serio *serio)
42983 mutex_init(&serio->drv_mutex);
42984 device_initialize(&serio->dev);
42985 dev_set_name(&serio->dev, "serio%ld",
42986 - (long)atomic_inc_return(&serio_no) - 1);
42987 + (long)atomic_inc_return_unchecked(&serio_no) - 1);
42988 serio->dev.bus = &serio_bus;
42989 serio->dev.release = serio_release_port;
42990 serio->dev.groups = serio_device_attr_groups;
42991 diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
42992 index c9a02fe..0debc75 100644
42993 --- a/drivers/input/serio/serio_raw.c
42994 +++ b/drivers/input/serio/serio_raw.c
42995 @@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
42996
42997 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
42998 {
42999 - static atomic_t serio_raw_no = ATOMIC_INIT(0);
43000 + static atomic_unchecked_t serio_raw_no = ATOMIC_INIT(0);
43001 struct serio_raw *serio_raw;
43002 int err;
43003
43004 @@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
43005 }
43006
43007 snprintf(serio_raw->name, sizeof(serio_raw->name),
43008 - "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1);
43009 + "serio_raw%ld", (long)atomic_inc_return_unchecked(&serio_raw_no) - 1);
43010 kref_init(&serio_raw->kref);
43011 INIT_LIST_HEAD(&serio_raw->client_list);
43012 init_waitqueue_head(&serio_raw->wait);
43013 diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
43014 index e5555fc..937986d 100644
43015 --- a/drivers/iommu/iommu.c
43016 +++ b/drivers/iommu/iommu.c
43017 @@ -588,7 +588,7 @@ static struct notifier_block iommu_bus_nb = {
43018 static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops)
43019 {
43020 bus_register_notifier(bus, &iommu_bus_nb);
43021 - bus_for_each_dev(bus, NULL, ops, add_iommu_group);
43022 + bus_for_each_dev(bus, NULL, (void *)ops, add_iommu_group);
43023 }
43024
43025 /**
43026 diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
43027 index 228632c9..edfe331 100644
43028 --- a/drivers/iommu/irq_remapping.c
43029 +++ b/drivers/iommu/irq_remapping.c
43030 @@ -356,7 +356,7 @@ int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
43031 void panic_if_irq_remap(const char *msg)
43032 {
43033 if (irq_remapping_enabled)
43034 - panic(msg);
43035 + panic("%s", msg);
43036 }
43037
43038 static void ir_ack_apic_edge(struct irq_data *data)
43039 @@ -377,10 +377,12 @@ static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
43040
43041 void irq_remap_modify_chip_defaults(struct irq_chip *chip)
43042 {
43043 - chip->irq_print_chip = ir_print_prefix;
43044 - chip->irq_ack = ir_ack_apic_edge;
43045 - chip->irq_eoi = ir_ack_apic_level;
43046 - chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
43047 + pax_open_kernel();
43048 + *(void **)&chip->irq_print_chip = ir_print_prefix;
43049 + *(void **)&chip->irq_ack = ir_ack_apic_edge;
43050 + *(void **)&chip->irq_eoi = ir_ack_apic_level;
43051 + *(void **)&chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
43052 + pax_close_kernel();
43053 }
43054
43055 bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
43056 diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
43057 index 57d165e..611997e 100644
43058 --- a/drivers/irqchip/irq-gic.c
43059 +++ b/drivers/irqchip/irq-gic.c
43060 @@ -84,7 +84,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
43061 * Supported arch specific GIC irq extension.
43062 * Default make them NULL.
43063 */
43064 -struct irq_chip gic_arch_extn = {
43065 +irq_chip_no_const gic_arch_extn = {
43066 .irq_eoi = NULL,
43067 .irq_mask = NULL,
43068 .irq_unmask = NULL,
43069 @@ -336,7 +336,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
43070 chained_irq_exit(chip, desc);
43071 }
43072
43073 -static struct irq_chip gic_chip = {
43074 +static irq_chip_no_const gic_chip __read_only = {
43075 .name = "GIC",
43076 .irq_mask = gic_mask_irq,
43077 .irq_unmask = gic_unmask_irq,
43078 diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
43079 index 8777065..a4a9967 100644
43080 --- a/drivers/irqchip/irq-renesas-irqc.c
43081 +++ b/drivers/irqchip/irq-renesas-irqc.c
43082 @@ -151,7 +151,7 @@ static int irqc_probe(struct platform_device *pdev)
43083 struct irqc_priv *p;
43084 struct resource *io;
43085 struct resource *irq;
43086 - struct irq_chip *irq_chip;
43087 + irq_chip_no_const *irq_chip;
43088 const char *name = dev_name(&pdev->dev);
43089 int ret;
43090 int k;
43091 diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
43092 index ac6f72b..81150f2 100644
43093 --- a/drivers/isdn/capi/capi.c
43094 +++ b/drivers/isdn/capi/capi.c
43095 @@ -81,8 +81,8 @@ struct capiminor {
43096
43097 struct capi20_appl *ap;
43098 u32 ncci;
43099 - atomic_t datahandle;
43100 - atomic_t msgid;
43101 + atomic_unchecked_t datahandle;
43102 + atomic_unchecked_t msgid;
43103
43104 struct tty_port port;
43105 int ttyinstop;
43106 @@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
43107 capimsg_setu16(s, 2, mp->ap->applid);
43108 capimsg_setu8 (s, 4, CAPI_DATA_B3);
43109 capimsg_setu8 (s, 5, CAPI_RESP);
43110 - capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
43111 + capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
43112 capimsg_setu32(s, 8, mp->ncci);
43113 capimsg_setu16(s, 12, datahandle);
43114 }
43115 @@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
43116 mp->outbytes -= len;
43117 spin_unlock_bh(&mp->outlock);
43118
43119 - datahandle = atomic_inc_return(&mp->datahandle);
43120 + datahandle = atomic_inc_return_unchecked(&mp->datahandle);
43121 skb_push(skb, CAPI_DATA_B3_REQ_LEN);
43122 memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
43123 capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
43124 capimsg_setu16(skb->data, 2, mp->ap->applid);
43125 capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
43126 capimsg_setu8 (skb->data, 5, CAPI_REQ);
43127 - capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
43128 + capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
43129 capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */
43130 capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
43131 capimsg_setu16(skb->data, 16, len); /* Data length */
43132 diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
43133 index c44950d..10ac276 100644
43134 --- a/drivers/isdn/gigaset/bas-gigaset.c
43135 +++ b/drivers/isdn/gigaset/bas-gigaset.c
43136 @@ -2564,22 +2564,22 @@ static int gigaset_post_reset(struct usb_interface *intf)
43137
43138
43139 static const struct gigaset_ops gigops = {
43140 - gigaset_write_cmd,
43141 - gigaset_write_room,
43142 - gigaset_chars_in_buffer,
43143 - gigaset_brkchars,
43144 - gigaset_init_bchannel,
43145 - gigaset_close_bchannel,
43146 - gigaset_initbcshw,
43147 - gigaset_freebcshw,
43148 - gigaset_reinitbcshw,
43149 - gigaset_initcshw,
43150 - gigaset_freecshw,
43151 - gigaset_set_modem_ctrl,
43152 - gigaset_baud_rate,
43153 - gigaset_set_line_ctrl,
43154 - gigaset_isoc_send_skb,
43155 - gigaset_isoc_input,
43156 + .write_cmd = gigaset_write_cmd,
43157 + .write_room = gigaset_write_room,
43158 + .chars_in_buffer = gigaset_chars_in_buffer,
43159 + .brkchars = gigaset_brkchars,
43160 + .init_bchannel = gigaset_init_bchannel,
43161 + .close_bchannel = gigaset_close_bchannel,
43162 + .initbcshw = gigaset_initbcshw,
43163 + .freebcshw = gigaset_freebcshw,
43164 + .reinitbcshw = gigaset_reinitbcshw,
43165 + .initcshw = gigaset_initcshw,
43166 + .freecshw = gigaset_freecshw,
43167 + .set_modem_ctrl = gigaset_set_modem_ctrl,
43168 + .baud_rate = gigaset_baud_rate,
43169 + .set_line_ctrl = gigaset_set_line_ctrl,
43170 + .send_skb = gigaset_isoc_send_skb,
43171 + .handle_input = gigaset_isoc_input,
43172 };
43173
43174 /* bas_gigaset_init
43175 diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
43176 index 600c79b..3752bab 100644
43177 --- a/drivers/isdn/gigaset/interface.c
43178 +++ b/drivers/isdn/gigaset/interface.c
43179 @@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
43180 }
43181 tty->driver_data = cs;
43182
43183 - ++cs->port.count;
43184 + atomic_inc(&cs->port.count);
43185
43186 - if (cs->port.count == 1) {
43187 + if (atomic_read(&cs->port.count) == 1) {
43188 tty_port_tty_set(&cs->port, tty);
43189 cs->port.low_latency = 1;
43190 }
43191 @@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
43192
43193 if (!cs->connected)
43194 gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
43195 - else if (!cs->port.count)
43196 + else if (!atomic_read(&cs->port.count))
43197 dev_warn(cs->dev, "%s: device not opened\n", __func__);
43198 - else if (!--cs->port.count)
43199 + else if (!atomic_dec_return(&cs->port.count))
43200 tty_port_tty_set(&cs->port, NULL);
43201
43202 mutex_unlock(&cs->mutex);
43203 diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
43204 index 8c91fd5..14f13ce 100644
43205 --- a/drivers/isdn/gigaset/ser-gigaset.c
43206 +++ b/drivers/isdn/gigaset/ser-gigaset.c
43207 @@ -453,22 +453,22 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
43208 }
43209
43210 static const struct gigaset_ops ops = {
43211 - gigaset_write_cmd,
43212 - gigaset_write_room,
43213 - gigaset_chars_in_buffer,
43214 - gigaset_brkchars,
43215 - gigaset_init_bchannel,
43216 - gigaset_close_bchannel,
43217 - gigaset_initbcshw,
43218 - gigaset_freebcshw,
43219 - gigaset_reinitbcshw,
43220 - gigaset_initcshw,
43221 - gigaset_freecshw,
43222 - gigaset_set_modem_ctrl,
43223 - gigaset_baud_rate,
43224 - gigaset_set_line_ctrl,
43225 - gigaset_m10x_send_skb, /* asyncdata.c */
43226 - gigaset_m10x_input, /* asyncdata.c */
43227 + .write_cmd = gigaset_write_cmd,
43228 + .write_room = gigaset_write_room,
43229 + .chars_in_buffer = gigaset_chars_in_buffer,
43230 + .brkchars = gigaset_brkchars,
43231 + .init_bchannel = gigaset_init_bchannel,
43232 + .close_bchannel = gigaset_close_bchannel,
43233 + .initbcshw = gigaset_initbcshw,
43234 + .freebcshw = gigaset_freebcshw,
43235 + .reinitbcshw = gigaset_reinitbcshw,
43236 + .initcshw = gigaset_initcshw,
43237 + .freecshw = gigaset_freecshw,
43238 + .set_modem_ctrl = gigaset_set_modem_ctrl,
43239 + .baud_rate = gigaset_baud_rate,
43240 + .set_line_ctrl = gigaset_set_line_ctrl,
43241 + .send_skb = gigaset_m10x_send_skb, /* asyncdata.c */
43242 + .handle_input = gigaset_m10x_input, /* asyncdata.c */
43243 };
43244
43245
43246 diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
43247 index d0a41cb..b953e50 100644
43248 --- a/drivers/isdn/gigaset/usb-gigaset.c
43249 +++ b/drivers/isdn/gigaset/usb-gigaset.c
43250 @@ -547,7 +547,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
43251 gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
43252 memcpy(cs->hw.usb->bchars, buf, 6);
43253 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
43254 - 0, 0, &buf, 6, 2000);
43255 + 0, 0, buf, 6, 2000);
43256 }
43257
43258 static void gigaset_freebcshw(struct bc_state *bcs)
43259 @@ -869,22 +869,22 @@ static int gigaset_pre_reset(struct usb_interface *intf)
43260 }
43261
43262 static const struct gigaset_ops ops = {
43263 - gigaset_write_cmd,
43264 - gigaset_write_room,
43265 - gigaset_chars_in_buffer,
43266 - gigaset_brkchars,
43267 - gigaset_init_bchannel,
43268 - gigaset_close_bchannel,
43269 - gigaset_initbcshw,
43270 - gigaset_freebcshw,
43271 - gigaset_reinitbcshw,
43272 - gigaset_initcshw,
43273 - gigaset_freecshw,
43274 - gigaset_set_modem_ctrl,
43275 - gigaset_baud_rate,
43276 - gigaset_set_line_ctrl,
43277 - gigaset_m10x_send_skb,
43278 - gigaset_m10x_input,
43279 + .write_cmd = gigaset_write_cmd,
43280 + .write_room = gigaset_write_room,
43281 + .chars_in_buffer = gigaset_chars_in_buffer,
43282 + .brkchars = gigaset_brkchars,
43283 + .init_bchannel = gigaset_init_bchannel,
43284 + .close_bchannel = gigaset_close_bchannel,
43285 + .initbcshw = gigaset_initbcshw,
43286 + .freebcshw = gigaset_freebcshw,
43287 + .reinitbcshw = gigaset_reinitbcshw,
43288 + .initcshw = gigaset_initcshw,
43289 + .freecshw = gigaset_freecshw,
43290 + .set_modem_ctrl = gigaset_set_modem_ctrl,
43291 + .baud_rate = gigaset_baud_rate,
43292 + .set_line_ctrl = gigaset_set_line_ctrl,
43293 + .send_skb = gigaset_m10x_send_skb,
43294 + .handle_input = gigaset_m10x_input,
43295 };
43296
43297 /*
43298 diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
43299 index 4d9b195..455075c 100644
43300 --- a/drivers/isdn/hardware/avm/b1.c
43301 +++ b/drivers/isdn/hardware/avm/b1.c
43302 @@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
43303 }
43304 if (left) {
43305 if (t4file->user) {
43306 - if (copy_from_user(buf, dp, left))
43307 + if (left > sizeof buf || copy_from_user(buf, dp, left))
43308 return -EFAULT;
43309 } else {
43310 memcpy(buf, dp, left);
43311 @@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
43312 }
43313 if (left) {
43314 if (config->user) {
43315 - if (copy_from_user(buf, dp, left))
43316 + if (left > sizeof buf || copy_from_user(buf, dp, left))
43317 return -EFAULT;
43318 } else {
43319 memcpy(buf, dp, left);
43320 diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
43321 index 9b856e1..fa03c92 100644
43322 --- a/drivers/isdn/i4l/isdn_common.c
43323 +++ b/drivers/isdn/i4l/isdn_common.c
43324 @@ -1654,6 +1654,8 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
43325 } else
43326 return -EINVAL;
43327 case IIOCDBGVAR:
43328 + if (!capable(CAP_SYS_RAWIO))
43329 + return -EPERM;
43330 if (arg) {
43331 if (copy_to_user(argp, &dev, sizeof(ulong)))
43332 return -EFAULT;
43333 diff --git a/drivers/isdn/i4l/isdn_concap.c b/drivers/isdn/i4l/isdn_concap.c
43334 index 91d5730..336523e 100644
43335 --- a/drivers/isdn/i4l/isdn_concap.c
43336 +++ b/drivers/isdn/i4l/isdn_concap.c
43337 @@ -80,9 +80,9 @@ static int isdn_concap_dl_disconn_req(struct concap_proto *concap)
43338 }
43339
43340 struct concap_device_ops isdn_concap_reliable_dl_dops = {
43341 - &isdn_concap_dl_data_req,
43342 - &isdn_concap_dl_connect_req,
43343 - &isdn_concap_dl_disconn_req
43344 + .data_req = &isdn_concap_dl_data_req,
43345 + .connect_req = &isdn_concap_dl_connect_req,
43346 + .disconn_req = &isdn_concap_dl_disconn_req
43347 };
43348
43349 /* The following should better go into a dedicated source file such that
43350 diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
43351 index 3c5f249..5fac4d0 100644
43352 --- a/drivers/isdn/i4l/isdn_tty.c
43353 +++ b/drivers/isdn/i4l/isdn_tty.c
43354 @@ -1508,9 +1508,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
43355
43356 #ifdef ISDN_DEBUG_MODEM_OPEN
43357 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
43358 - port->count);
43359 + atomic_read(&port->count));
43360 #endif
43361 - port->count++;
43362 + atomic_inc(&port->count);
43363 port->tty = tty;
43364 /*
43365 * Start up serial port
43366 @@ -1554,7 +1554,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
43367 #endif
43368 return;
43369 }
43370 - if ((tty->count == 1) && (port->count != 1)) {
43371 + if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
43372 /*
43373 * Uh, oh. tty->count is 1, which means that the tty
43374 * structure will be freed. Info->count should always
43375 @@ -1563,15 +1563,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
43376 * serial port won't be shutdown.
43377 */
43378 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
43379 - "info->count is %d\n", port->count);
43380 - port->count = 1;
43381 + "info->count is %d\n", atomic_read(&port->count));
43382 + atomic_set(&port->count, 1);
43383 }
43384 - if (--port->count < 0) {
43385 + if (atomic_dec_return(&port->count) < 0) {
43386 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
43387 - info->line, port->count);
43388 - port->count = 0;
43389 + info->line, atomic_read(&port->count));
43390 + atomic_set(&port->count, 0);
43391 }
43392 - if (port->count) {
43393 + if (atomic_read(&port->count)) {
43394 #ifdef ISDN_DEBUG_MODEM_OPEN
43395 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
43396 #endif
43397 @@ -1625,7 +1625,7 @@ isdn_tty_hangup(struct tty_struct *tty)
43398 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
43399 return;
43400 isdn_tty_shutdown(info);
43401 - port->count = 0;
43402 + atomic_set(&port->count, 0);
43403 port->flags &= ~ASYNC_NORMAL_ACTIVE;
43404 port->tty = NULL;
43405 wake_up_interruptible(&port->open_wait);
43406 @@ -1970,7 +1970,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
43407 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
43408 modem_info *info = &dev->mdm.info[i];
43409
43410 - if (info->port.count == 0)
43411 + if (atomic_read(&info->port.count) == 0)
43412 continue;
43413 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
43414 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
43415 diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
43416 index e2d4e58..40cd045 100644
43417 --- a/drivers/isdn/i4l/isdn_x25iface.c
43418 +++ b/drivers/isdn/i4l/isdn_x25iface.c
43419 @@ -53,14 +53,14 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *);
43420
43421
43422 static struct concap_proto_ops ix25_pops = {
43423 - &isdn_x25iface_proto_new,
43424 - &isdn_x25iface_proto_del,
43425 - &isdn_x25iface_proto_restart,
43426 - &isdn_x25iface_proto_close,
43427 - &isdn_x25iface_xmit,
43428 - &isdn_x25iface_receive,
43429 - &isdn_x25iface_connect_ind,
43430 - &isdn_x25iface_disconn_ind
43431 + .proto_new = &isdn_x25iface_proto_new,
43432 + .proto_del = &isdn_x25iface_proto_del,
43433 + .restart = &isdn_x25iface_proto_restart,
43434 + .close = &isdn_x25iface_proto_close,
43435 + .encap_and_xmit = &isdn_x25iface_xmit,
43436 + .data_ind = &isdn_x25iface_receive,
43437 + .connect_ind = &isdn_x25iface_connect_ind,
43438 + .disconn_ind = &isdn_x25iface_disconn_ind
43439 };
43440
43441 /* error message helper function */
43442 diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
43443 index 6a7447c..cae33fe 100644
43444 --- a/drivers/isdn/icn/icn.c
43445 +++ b/drivers/isdn/icn/icn.c
43446 @@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
43447 if (count > len)
43448 count = len;
43449 if (user) {
43450 - if (copy_from_user(msg, buf, count))
43451 + if (count > sizeof msg || copy_from_user(msg, buf, count))
43452 return -EFAULT;
43453 } else
43454 memcpy(msg, buf, count);
43455 diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
43456 index a4f05c5..1433bc5 100644
43457 --- a/drivers/isdn/mISDN/dsp_cmx.c
43458 +++ b/drivers/isdn/mISDN/dsp_cmx.c
43459 @@ -1628,7 +1628,7 @@ unsigned long dsp_spl_jiffies; /* calculate the next time to fire */
43460 static u16 dsp_count; /* last sample count */
43461 static int dsp_count_valid; /* if we have last sample count */
43462
43463 -void
43464 +void __intentional_overflow(-1)
43465 dsp_cmx_send(void *arg)
43466 {
43467 struct dsp_conf *conf;
43468 diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
43469 index f58a354..fbae176 100644
43470 --- a/drivers/leds/leds-clevo-mail.c
43471 +++ b/drivers/leds/leds-clevo-mail.c
43472 @@ -40,7 +40,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
43473 * detected as working, but in reality it is not) as low as
43474 * possible.
43475 */
43476 -static struct dmi_system_id clevo_mail_led_dmi_table[] __initdata = {
43477 +static struct dmi_system_id clevo_mail_led_dmi_table[] __initconst = {
43478 {
43479 .callback = clevo_mail_led_dmi_callback,
43480 .ident = "Clevo D410J",
43481 diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
43482 index 2eb3ef6..295891f 100644
43483 --- a/drivers/leds/leds-ss4200.c
43484 +++ b/drivers/leds/leds-ss4200.c
43485 @@ -91,7 +91,7 @@ MODULE_PARM_DESC(nodetect, "Skip DMI-based hardware detection");
43486 * detected as working, but in reality it is not) as low as
43487 * possible.
43488 */
43489 -static struct dmi_system_id nas_led_whitelist[] __initdata = {
43490 +static struct dmi_system_id nas_led_whitelist[] __initconst = {
43491 {
43492 .callback = ss4200_led_dmi_callback,
43493 .ident = "Intel SS4200-E",
43494 diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
43495 index 0bf1e4e..b4bf44e 100644
43496 --- a/drivers/lguest/core.c
43497 +++ b/drivers/lguest/core.c
43498 @@ -97,9 +97,17 @@ static __init int map_switcher(void)
43499 * The end address needs +1 because __get_vm_area allocates an
43500 * extra guard page, so we need space for that.
43501 */
43502 +
43503 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
43504 + switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
43505 + VM_ALLOC | VM_KERNEXEC, switcher_addr, switcher_addr
43506 + + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
43507 +#else
43508 switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
43509 VM_ALLOC, switcher_addr, switcher_addr
43510 + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
43511 +#endif
43512 +
43513 if (!switcher_vma) {
43514 err = -ENOMEM;
43515 printk("lguest: could not map switcher pages high\n");
43516 @@ -124,7 +132,7 @@ static __init int map_switcher(void)
43517 * Now the Switcher is mapped at the right address, we can't fail!
43518 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
43519 */
43520 - memcpy(switcher_vma->addr, start_switcher_text,
43521 + memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
43522 end_switcher_text - start_switcher_text);
43523
43524 printk(KERN_INFO "lguest: mapped switcher at %p\n",
43525 diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
43526 index e8b55c3..3514c37 100644
43527 --- a/drivers/lguest/page_tables.c
43528 +++ b/drivers/lguest/page_tables.c
43529 @@ -559,7 +559,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
43530 /*:*/
43531
43532 #ifdef CONFIG_X86_PAE
43533 -static void release_pmd(pmd_t *spmd)
43534 +static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
43535 {
43536 /* If the entry's not present, there's nothing to release. */
43537 if (pmd_flags(*spmd) & _PAGE_PRESENT) {
43538 diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
43539 index 922a1ac..9dd0c2a 100644
43540 --- a/drivers/lguest/x86/core.c
43541 +++ b/drivers/lguest/x86/core.c
43542 @@ -59,7 +59,7 @@ static struct {
43543 /* Offset from where switcher.S was compiled to where we've copied it */
43544 static unsigned long switcher_offset(void)
43545 {
43546 - return switcher_addr - (unsigned long)start_switcher_text;
43547 + return switcher_addr - (unsigned long)ktla_ktva(start_switcher_text);
43548 }
43549
43550 /* This cpu's struct lguest_pages (after the Switcher text page) */
43551 @@ -99,7 +99,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
43552 * These copies are pretty cheap, so we do them unconditionally: */
43553 /* Save the current Host top-level page directory.
43554 */
43555 +
43556 +#ifdef CONFIG_PAX_PER_CPU_PGD
43557 + pages->state.host_cr3 = read_cr3();
43558 +#else
43559 pages->state.host_cr3 = __pa(current->mm->pgd);
43560 +#endif
43561 +
43562 /*
43563 * Set up the Guest's page tables to see this CPU's pages (and no
43564 * other CPU's pages).
43565 @@ -477,7 +483,7 @@ void __init lguest_arch_host_init(void)
43566 * compiled-in switcher code and the high-mapped copy we just made.
43567 */
43568 for (i = 0; i < IDT_ENTRIES; i++)
43569 - default_idt_entries[i] += switcher_offset();
43570 + default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
43571
43572 /*
43573 * Set up the Switcher's per-cpu areas.
43574 @@ -560,7 +566,7 @@ void __init lguest_arch_host_init(void)
43575 * it will be undisturbed when we switch. To change %cs and jump we
43576 * need this structure to feed to Intel's "lcall" instruction.
43577 */
43578 - lguest_entry.offset = (long)switch_to_guest + switcher_offset();
43579 + lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
43580 lguest_entry.segment = LGUEST_CS;
43581
43582 /*
43583 diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
43584 index 40634b0..4f5855e 100644
43585 --- a/drivers/lguest/x86/switcher_32.S
43586 +++ b/drivers/lguest/x86/switcher_32.S
43587 @@ -87,6 +87,7 @@
43588 #include <asm/page.h>
43589 #include <asm/segment.h>
43590 #include <asm/lguest.h>
43591 +#include <asm/processor-flags.h>
43592
43593 // We mark the start of the code to copy
43594 // It's placed in .text tho it's never run here
43595 @@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
43596 // Changes type when we load it: damn Intel!
43597 // For after we switch over our page tables
43598 // That entry will be read-only: we'd crash.
43599 +
43600 +#ifdef CONFIG_PAX_KERNEXEC
43601 + mov %cr0, %edx
43602 + xor $X86_CR0_WP, %edx
43603 + mov %edx, %cr0
43604 +#endif
43605 +
43606 movl $(GDT_ENTRY_TSS*8), %edx
43607 ltr %dx
43608
43609 @@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
43610 // Let's clear it again for our return.
43611 // The GDT descriptor of the Host
43612 // Points to the table after two "size" bytes
43613 - movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
43614 + movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
43615 // Clear "used" from type field (byte 5, bit 2)
43616 - andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
43617 + andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
43618 +
43619 +#ifdef CONFIG_PAX_KERNEXEC
43620 + mov %cr0, %eax
43621 + xor $X86_CR0_WP, %eax
43622 + mov %eax, %cr0
43623 +#endif
43624
43625 // Once our page table's switched, the Guest is live!
43626 // The Host fades as we run this final step.
43627 @@ -295,13 +309,12 @@ deliver_to_host:
43628 // I consulted gcc, and it gave
43629 // These instructions, which I gladly credit:
43630 leal (%edx,%ebx,8), %eax
43631 - movzwl (%eax),%edx
43632 - movl 4(%eax), %eax
43633 - xorw %ax, %ax
43634 - orl %eax, %edx
43635 + movl 4(%eax), %edx
43636 + movw (%eax), %dx
43637 // Now the address of the handler's in %edx
43638 // We call it now: its "iret" drops us home.
43639 - jmp *%edx
43640 + ljmp $__KERNEL_CS, $1f
43641 +1: jmp *%edx
43642
43643 // Every interrupt can come to us here
43644 // But we must truly tell each apart.
43645 diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
43646 index 7ef7461..5a09dac 100644
43647 --- a/drivers/md/bcache/closure.h
43648 +++ b/drivers/md/bcache/closure.h
43649 @@ -238,7 +238,7 @@ static inline void closure_set_stopped(struct closure *cl)
43650 static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
43651 struct workqueue_struct *wq)
43652 {
43653 - BUG_ON(object_is_on_stack(cl));
43654 + BUG_ON(object_starts_on_stack(cl));
43655 closure_set_ip(cl);
43656 cl->fn = fn;
43657 cl->wq = wq;
43658 diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
43659 index 9a8e66a..10cc762 100644
43660 --- a/drivers/md/bitmap.c
43661 +++ b/drivers/md/bitmap.c
43662 @@ -1779,7 +1779,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
43663 chunk_kb ? "KB" : "B");
43664 if (bitmap->storage.file) {
43665 seq_printf(seq, ", file: ");
43666 - seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
43667 + seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
43668 }
43669
43670 seq_printf(seq, "\n");
43671 diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
43672 index 5152142..623d141 100644
43673 --- a/drivers/md/dm-ioctl.c
43674 +++ b/drivers/md/dm-ioctl.c
43675 @@ -1769,7 +1769,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
43676 cmd == DM_LIST_VERSIONS_CMD)
43677 return 0;
43678
43679 - if ((cmd == DM_DEV_CREATE_CMD)) {
43680 + if (cmd == DM_DEV_CREATE_CMD) {
43681 if (!*param->name) {
43682 DMWARN("name not supplied when creating device");
43683 return -EINVAL;
43684 diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
43685 index 7dfdb5c..4caada6 100644
43686 --- a/drivers/md/dm-raid1.c
43687 +++ b/drivers/md/dm-raid1.c
43688 @@ -40,7 +40,7 @@ enum dm_raid1_error {
43689
43690 struct mirror {
43691 struct mirror_set *ms;
43692 - atomic_t error_count;
43693 + atomic_unchecked_t error_count;
43694 unsigned long error_type;
43695 struct dm_dev *dev;
43696 sector_t offset;
43697 @@ -186,7 +186,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
43698 struct mirror *m;
43699
43700 for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
43701 - if (!atomic_read(&m->error_count))
43702 + if (!atomic_read_unchecked(&m->error_count))
43703 return m;
43704
43705 return NULL;
43706 @@ -218,7 +218,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
43707 * simple way to tell if a device has encountered
43708 * errors.
43709 */
43710 - atomic_inc(&m->error_count);
43711 + atomic_inc_unchecked(&m->error_count);
43712
43713 if (test_and_set_bit(error_type, &m->error_type))
43714 return;
43715 @@ -409,7 +409,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
43716 struct mirror *m = get_default_mirror(ms);
43717
43718 do {
43719 - if (likely(!atomic_read(&m->error_count)))
43720 + if (likely(!atomic_read_unchecked(&m->error_count)))
43721 return m;
43722
43723 if (m-- == ms->mirror)
43724 @@ -423,7 +423,7 @@ static int default_ok(struct mirror *m)
43725 {
43726 struct mirror *default_mirror = get_default_mirror(m->ms);
43727
43728 - return !atomic_read(&default_mirror->error_count);
43729 + return !atomic_read_unchecked(&default_mirror->error_count);
43730 }
43731
43732 static int mirror_available(struct mirror_set *ms, struct bio *bio)
43733 @@ -560,7 +560,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
43734 */
43735 if (likely(region_in_sync(ms, region, 1)))
43736 m = choose_mirror(ms, bio->bi_iter.bi_sector);
43737 - else if (m && atomic_read(&m->error_count))
43738 + else if (m && atomic_read_unchecked(&m->error_count))
43739 m = NULL;
43740
43741 if (likely(m))
43742 @@ -927,7 +927,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
43743 }
43744
43745 ms->mirror[mirror].ms = ms;
43746 - atomic_set(&(ms->mirror[mirror].error_count), 0);
43747 + atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
43748 ms->mirror[mirror].error_type = 0;
43749 ms->mirror[mirror].offset = offset;
43750
43751 @@ -1342,7 +1342,7 @@ static void mirror_resume(struct dm_target *ti)
43752 */
43753 static char device_status_char(struct mirror *m)
43754 {
43755 - if (!atomic_read(&(m->error_count)))
43756 + if (!atomic_read_unchecked(&(m->error_count)))
43757 return 'A';
43758
43759 return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
43760 diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
43761 index 28a9012..9c0f6a5 100644
43762 --- a/drivers/md/dm-stats.c
43763 +++ b/drivers/md/dm-stats.c
43764 @@ -382,7 +382,7 @@ do_sync_free:
43765 synchronize_rcu_expedited();
43766 dm_stat_free(&s->rcu_head);
43767 } else {
43768 - ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
43769 + ACCESS_ONCE_RW(dm_stat_need_rcu_barrier) = 1;
43770 call_rcu(&s->rcu_head, dm_stat_free);
43771 }
43772 return 0;
43773 @@ -554,8 +554,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
43774 ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
43775 (ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
43776 ));
43777 - ACCESS_ONCE(last->last_sector) = end_sector;
43778 - ACCESS_ONCE(last->last_rw) = bi_rw;
43779 + ACCESS_ONCE_RW(last->last_sector) = end_sector;
43780 + ACCESS_ONCE_RW(last->last_rw) = bi_rw;
43781 }
43782
43783 rcu_read_lock();
43784 diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
43785 index d1600d2..4c3af3a 100644
43786 --- a/drivers/md/dm-stripe.c
43787 +++ b/drivers/md/dm-stripe.c
43788 @@ -21,7 +21,7 @@ struct stripe {
43789 struct dm_dev *dev;
43790 sector_t physical_start;
43791
43792 - atomic_t error_count;
43793 + atomic_unchecked_t error_count;
43794 };
43795
43796 struct stripe_c {
43797 @@ -186,7 +186,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
43798 kfree(sc);
43799 return r;
43800 }
43801 - atomic_set(&(sc->stripe[i].error_count), 0);
43802 + atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
43803 }
43804
43805 ti->private = sc;
43806 @@ -330,7 +330,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
43807 DMEMIT("%d ", sc->stripes);
43808 for (i = 0; i < sc->stripes; i++) {
43809 DMEMIT("%s ", sc->stripe[i].dev->name);
43810 - buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
43811 + buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
43812 'D' : 'A';
43813 }
43814 buffer[i] = '\0';
43815 @@ -375,8 +375,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
43816 */
43817 for (i = 0; i < sc->stripes; i++)
43818 if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
43819 - atomic_inc(&(sc->stripe[i].error_count));
43820 - if (atomic_read(&(sc->stripe[i].error_count)) <
43821 + atomic_inc_unchecked(&(sc->stripe[i].error_count));
43822 + if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
43823 DM_IO_ERROR_THRESHOLD)
43824 schedule_work(&sc->trigger_event);
43825 }
43826 diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
43827 index 50601ec..6d3b9dc 100644
43828 --- a/drivers/md/dm-table.c
43829 +++ b/drivers/md/dm-table.c
43830 @@ -274,7 +274,7 @@ static struct dm_dev_internal *find_device(struct list_head *l, dev_t dev)
43831 static int open_dev(struct dm_dev_internal *d, dev_t dev,
43832 struct mapped_device *md)
43833 {
43834 - static char *_claim_ptr = "I belong to device-mapper";
43835 + static char _claim_ptr[] = "I belong to device-mapper";
43836 struct block_device *bdev;
43837
43838 int r;
43839 @@ -342,7 +342,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
43840 if (!dev_size)
43841 return 0;
43842
43843 - if ((start >= dev_size) || (start + len > dev_size)) {
43844 + if ((start >= dev_size) || (len > dev_size - start)) {
43845 DMWARN("%s: %s too small for target: "
43846 "start=%llu, len=%llu, dev_size=%llu",
43847 dm_device_name(ti->table->md), bdevname(bdev, b),
43848 diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
43849 index b086a94..74cb67e 100644
43850 --- a/drivers/md/dm-thin-metadata.c
43851 +++ b/drivers/md/dm-thin-metadata.c
43852 @@ -404,7 +404,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
43853 {
43854 pmd->info.tm = pmd->tm;
43855 pmd->info.levels = 2;
43856 - pmd->info.value_type.context = pmd->data_sm;
43857 + pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
43858 pmd->info.value_type.size = sizeof(__le64);
43859 pmd->info.value_type.inc = data_block_inc;
43860 pmd->info.value_type.dec = data_block_dec;
43861 @@ -423,7 +423,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
43862
43863 pmd->bl_info.tm = pmd->tm;
43864 pmd->bl_info.levels = 1;
43865 - pmd->bl_info.value_type.context = pmd->data_sm;
43866 + pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
43867 pmd->bl_info.value_type.size = sizeof(__le64);
43868 pmd->bl_info.value_type.inc = data_block_inc;
43869 pmd->bl_info.value_type.dec = data_block_dec;
43870 diff --git a/drivers/md/dm.c b/drivers/md/dm.c
43871 index 455e649..1f214be 100644
43872 --- a/drivers/md/dm.c
43873 +++ b/drivers/md/dm.c
43874 @@ -178,9 +178,9 @@ struct mapped_device {
43875 /*
43876 * Event handling.
43877 */
43878 - atomic_t event_nr;
43879 + atomic_unchecked_t event_nr;
43880 wait_queue_head_t eventq;
43881 - atomic_t uevent_seq;
43882 + atomic_unchecked_t uevent_seq;
43883 struct list_head uevent_list;
43884 spinlock_t uevent_lock; /* Protect access to uevent_list */
43885
43886 @@ -1884,8 +1884,8 @@ static struct mapped_device *alloc_dev(int minor)
43887 spin_lock_init(&md->deferred_lock);
43888 atomic_set(&md->holders, 1);
43889 atomic_set(&md->open_count, 0);
43890 - atomic_set(&md->event_nr, 0);
43891 - atomic_set(&md->uevent_seq, 0);
43892 + atomic_set_unchecked(&md->event_nr, 0);
43893 + atomic_set_unchecked(&md->uevent_seq, 0);
43894 INIT_LIST_HEAD(&md->uevent_list);
43895 spin_lock_init(&md->uevent_lock);
43896
43897 @@ -2039,7 +2039,7 @@ static void event_callback(void *context)
43898
43899 dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
43900
43901 - atomic_inc(&md->event_nr);
43902 + atomic_inc_unchecked(&md->event_nr);
43903 wake_up(&md->eventq);
43904 }
43905
43906 @@ -2732,18 +2732,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
43907
43908 uint32_t dm_next_uevent_seq(struct mapped_device *md)
43909 {
43910 - return atomic_add_return(1, &md->uevent_seq);
43911 + return atomic_add_return_unchecked(1, &md->uevent_seq);
43912 }
43913
43914 uint32_t dm_get_event_nr(struct mapped_device *md)
43915 {
43916 - return atomic_read(&md->event_nr);
43917 + return atomic_read_unchecked(&md->event_nr);
43918 }
43919
43920 int dm_wait_event(struct mapped_device *md, int event_nr)
43921 {
43922 return wait_event_interruptible(md->eventq,
43923 - (event_nr != atomic_read(&md->event_nr)));
43924 + (event_nr != atomic_read_unchecked(&md->event_nr)));
43925 }
43926
43927 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
43928 diff --git a/drivers/md/md.c b/drivers/md/md.c
43929 index 9a18209..ec4d3ec 100644
43930 --- a/drivers/md/md.c
43931 +++ b/drivers/md/md.c
43932 @@ -194,10 +194,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
43933 * start build, activate spare
43934 */
43935 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
43936 -static atomic_t md_event_count;
43937 +static atomic_unchecked_t md_event_count;
43938 void md_new_event(struct mddev *mddev)
43939 {
43940 - atomic_inc(&md_event_count);
43941 + atomic_inc_unchecked(&md_event_count);
43942 wake_up(&md_event_waiters);
43943 }
43944 EXPORT_SYMBOL_GPL(md_new_event);
43945 @@ -207,7 +207,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
43946 */
43947 static void md_new_event_inintr(struct mddev *mddev)
43948 {
43949 - atomic_inc(&md_event_count);
43950 + atomic_inc_unchecked(&md_event_count);
43951 wake_up(&md_event_waiters);
43952 }
43953
43954 @@ -1462,7 +1462,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
43955 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
43956 (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
43957 rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
43958 - atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
43959 + atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
43960
43961 rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
43962 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
43963 @@ -1713,7 +1713,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
43964 else
43965 sb->resync_offset = cpu_to_le64(0);
43966
43967 - sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
43968 + sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
43969
43970 sb->raid_disks = cpu_to_le32(mddev->raid_disks);
43971 sb->size = cpu_to_le64(mddev->dev_sectors);
43972 @@ -2725,7 +2725,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
43973 static ssize_t
43974 errors_show(struct md_rdev *rdev, char *page)
43975 {
43976 - return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
43977 + return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
43978 }
43979
43980 static ssize_t
43981 @@ -2734,7 +2734,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
43982 char *e;
43983 unsigned long n = simple_strtoul(buf, &e, 10);
43984 if (*buf && (*e == 0 || *e == '\n')) {
43985 - atomic_set(&rdev->corrected_errors, n);
43986 + atomic_set_unchecked(&rdev->corrected_errors, n);
43987 return len;
43988 }
43989 return -EINVAL;
43990 @@ -3183,8 +3183,8 @@ int md_rdev_init(struct md_rdev *rdev)
43991 rdev->sb_loaded = 0;
43992 rdev->bb_page = NULL;
43993 atomic_set(&rdev->nr_pending, 0);
43994 - atomic_set(&rdev->read_errors, 0);
43995 - atomic_set(&rdev->corrected_errors, 0);
43996 + atomic_set_unchecked(&rdev->read_errors, 0);
43997 + atomic_set_unchecked(&rdev->corrected_errors, 0);
43998
43999 INIT_LIST_HEAD(&rdev->same_set);
44000 init_waitqueue_head(&rdev->blocked_wait);
44001 @@ -7058,7 +7058,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
44002
44003 spin_unlock(&pers_lock);
44004 seq_printf(seq, "\n");
44005 - seq->poll_event = atomic_read(&md_event_count);
44006 + seq->poll_event = atomic_read_unchecked(&md_event_count);
44007 return 0;
44008 }
44009 if (v == (void*)2) {
44010 @@ -7161,7 +7161,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
44011 return error;
44012
44013 seq = file->private_data;
44014 - seq->poll_event = atomic_read(&md_event_count);
44015 + seq->poll_event = atomic_read_unchecked(&md_event_count);
44016 return error;
44017 }
44018
44019 @@ -7178,7 +7178,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
44020 /* always allow read */
44021 mask = POLLIN | POLLRDNORM;
44022
44023 - if (seq->poll_event != atomic_read(&md_event_count))
44024 + if (seq->poll_event != atomic_read_unchecked(&md_event_count))
44025 mask |= POLLERR | POLLPRI;
44026 return mask;
44027 }
44028 @@ -7222,7 +7222,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
44029 struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
44030 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
44031 (int)part_stat_read(&disk->part0, sectors[1]) -
44032 - atomic_read(&disk->sync_io);
44033 + atomic_read_unchecked(&disk->sync_io);
44034 /* sync IO will cause sync_io to increase before the disk_stats
44035 * as sync_io is counted when a request starts, and
44036 * disk_stats is counted when it completes.
44037 diff --git a/drivers/md/md.h b/drivers/md/md.h
44038 index a49d991..3582bb7 100644
44039 --- a/drivers/md/md.h
44040 +++ b/drivers/md/md.h
44041 @@ -94,13 +94,13 @@ struct md_rdev {
44042 * only maintained for arrays that
44043 * support hot removal
44044 */
44045 - atomic_t read_errors; /* number of consecutive read errors that
44046 + atomic_unchecked_t read_errors; /* number of consecutive read errors that
44047 * we have tried to ignore.
44048 */
44049 struct timespec last_read_error; /* monotonic time since our
44050 * last read error
44051 */
44052 - atomic_t corrected_errors; /* number of corrected read errors,
44053 + atomic_unchecked_t corrected_errors; /* number of corrected read errors,
44054 * for reporting to userspace and storing
44055 * in superblock.
44056 */
44057 @@ -449,7 +449,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
44058
44059 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
44060 {
44061 - atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
44062 + atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
44063 }
44064
44065 struct md_personality
44066 diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
44067 index 786b689..ea8c956 100644
44068 --- a/drivers/md/persistent-data/dm-space-map-metadata.c
44069 +++ b/drivers/md/persistent-data/dm-space-map-metadata.c
44070 @@ -679,7 +679,7 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
44071 * Flick into a mode where all blocks get allocated in the new area.
44072 */
44073 smm->begin = old_len;
44074 - memcpy(sm, &bootstrap_ops, sizeof(*sm));
44075 + memcpy((void *)sm, &bootstrap_ops, sizeof(*sm));
44076
44077 /*
44078 * Extend.
44079 @@ -710,7 +710,7 @@ out:
44080 /*
44081 * Switch back to normal behaviour.
44082 */
44083 - memcpy(sm, &ops, sizeof(*sm));
44084 + memcpy((void *)sm, &ops, sizeof(*sm));
44085 return r;
44086 }
44087
44088 diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
44089 index 3e6d115..ffecdeb 100644
44090 --- a/drivers/md/persistent-data/dm-space-map.h
44091 +++ b/drivers/md/persistent-data/dm-space-map.h
44092 @@ -71,6 +71,7 @@ struct dm_space_map {
44093 dm_sm_threshold_fn fn,
44094 void *context);
44095 };
44096 +typedef struct dm_space_map __no_const dm_space_map_no_const;
44097
44098 /*----------------------------------------------------------------*/
44099
44100 diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
44101 index 56e24c0..e1c8e1f 100644
44102 --- a/drivers/md/raid1.c
44103 +++ b/drivers/md/raid1.c
44104 @@ -1931,7 +1931,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
44105 if (r1_sync_page_io(rdev, sect, s,
44106 bio->bi_io_vec[idx].bv_page,
44107 READ) != 0)
44108 - atomic_add(s, &rdev->corrected_errors);
44109 + atomic_add_unchecked(s, &rdev->corrected_errors);
44110 }
44111 sectors -= s;
44112 sect += s;
44113 @@ -2165,7 +2165,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
44114 test_bit(In_sync, &rdev->flags)) {
44115 if (r1_sync_page_io(rdev, sect, s,
44116 conf->tmppage, READ)) {
44117 - atomic_add(s, &rdev->corrected_errors);
44118 + atomic_add_unchecked(s, &rdev->corrected_errors);
44119 printk(KERN_INFO
44120 "md/raid1:%s: read error corrected "
44121 "(%d sectors at %llu on %s)\n",
44122 diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
44123 index cb882aa..9bd076e 100644
44124 --- a/drivers/md/raid10.c
44125 +++ b/drivers/md/raid10.c
44126 @@ -1949,7 +1949,7 @@ static void end_sync_read(struct bio *bio, int error)
44127 /* The write handler will notice the lack of
44128 * R10BIO_Uptodate and record any errors etc
44129 */
44130 - atomic_add(r10_bio->sectors,
44131 + atomic_add_unchecked(r10_bio->sectors,
44132 &conf->mirrors[d].rdev->corrected_errors);
44133
44134 /* for reconstruct, we always reschedule after a read.
44135 @@ -2307,7 +2307,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
44136 {
44137 struct timespec cur_time_mon;
44138 unsigned long hours_since_last;
44139 - unsigned int read_errors = atomic_read(&rdev->read_errors);
44140 + unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
44141
44142 ktime_get_ts(&cur_time_mon);
44143
44144 @@ -2329,9 +2329,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
44145 * overflowing the shift of read_errors by hours_since_last.
44146 */
44147 if (hours_since_last >= 8 * sizeof(read_errors))
44148 - atomic_set(&rdev->read_errors, 0);
44149 + atomic_set_unchecked(&rdev->read_errors, 0);
44150 else
44151 - atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
44152 + atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
44153 }
44154
44155 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
44156 @@ -2385,8 +2385,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
44157 return;
44158
44159 check_decay_read_errors(mddev, rdev);
44160 - atomic_inc(&rdev->read_errors);
44161 - if (atomic_read(&rdev->read_errors) > max_read_errors) {
44162 + atomic_inc_unchecked(&rdev->read_errors);
44163 + if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
44164 char b[BDEVNAME_SIZE];
44165 bdevname(rdev->bdev, b);
44166
44167 @@ -2394,7 +2394,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
44168 "md/raid10:%s: %s: Raid device exceeded "
44169 "read_error threshold [cur %d:max %d]\n",
44170 mdname(mddev), b,
44171 - atomic_read(&rdev->read_errors), max_read_errors);
44172 + atomic_read_unchecked(&rdev->read_errors), max_read_errors);
44173 printk(KERN_NOTICE
44174 "md/raid10:%s: %s: Failing raid device\n",
44175 mdname(mddev), b);
44176 @@ -2549,7 +2549,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
44177 sect +
44178 choose_data_offset(r10_bio, rdev)),
44179 bdevname(rdev->bdev, b));
44180 - atomic_add(s, &rdev->corrected_errors);
44181 + atomic_add_unchecked(s, &rdev->corrected_errors);
44182 }
44183
44184 rdev_dec_pending(rdev, mddev);
44185 diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
44186 index ad1b9be..b417412 100644
44187 --- a/drivers/md/raid5.c
44188 +++ b/drivers/md/raid5.c
44189 @@ -1702,6 +1702,10 @@ static int grow_one_stripe(struct r5conf *conf, int hash)
44190 return 1;
44191 }
44192
44193 +#ifdef CONFIG_GRKERNSEC_HIDESYM
44194 +static atomic_unchecked_t raid5_cache_id = ATOMIC_INIT(0);
44195 +#endif
44196 +
44197 static int grow_stripes(struct r5conf *conf, int num)
44198 {
44199 struct kmem_cache *sc;
44200 @@ -1713,7 +1717,11 @@ static int grow_stripes(struct r5conf *conf, int num)
44201 "raid%d-%s", conf->level, mdname(conf->mddev));
44202 else
44203 sprintf(conf->cache_name[0],
44204 +#ifdef CONFIG_GRKERNSEC_HIDESYM
44205 + "raid%d-%08lx", conf->level, atomic_inc_return_unchecked(&raid5_cache_id));
44206 +#else
44207 "raid%d-%p", conf->level, conf->mddev);
44208 +#endif
44209 sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
44210
44211 conf->active_name = 0;
44212 @@ -1986,21 +1994,21 @@ static void raid5_end_read_request(struct bio * bi, int error)
44213 mdname(conf->mddev), STRIPE_SECTORS,
44214 (unsigned long long)s,
44215 bdevname(rdev->bdev, b));
44216 - atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
44217 + atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
44218 clear_bit(R5_ReadError, &sh->dev[i].flags);
44219 clear_bit(R5_ReWrite, &sh->dev[i].flags);
44220 } else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
44221 clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
44222
44223 - if (atomic_read(&rdev->read_errors))
44224 - atomic_set(&rdev->read_errors, 0);
44225 + if (atomic_read_unchecked(&rdev->read_errors))
44226 + atomic_set_unchecked(&rdev->read_errors, 0);
44227 } else {
44228 const char *bdn = bdevname(rdev->bdev, b);
44229 int retry = 0;
44230 int set_bad = 0;
44231
44232 clear_bit(R5_UPTODATE, &sh->dev[i].flags);
44233 - atomic_inc(&rdev->read_errors);
44234 + atomic_inc_unchecked(&rdev->read_errors);
44235 if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
44236 printk_ratelimited(
44237 KERN_WARNING
44238 @@ -2028,7 +2036,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
44239 mdname(conf->mddev),
44240 (unsigned long long)s,
44241 bdn);
44242 - } else if (atomic_read(&rdev->read_errors)
44243 + } else if (atomic_read_unchecked(&rdev->read_errors)
44244 > conf->max_nr_stripes)
44245 printk(KERN_WARNING
44246 "md/raid:%s: Too many read errors, failing device %s.\n",
44247 diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
44248 index 983db75..ef9248c 100644
44249 --- a/drivers/media/dvb-core/dvbdev.c
44250 +++ b/drivers/media/dvb-core/dvbdev.c
44251 @@ -185,7 +185,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
44252 const struct dvb_device *template, void *priv, int type)
44253 {
44254 struct dvb_device *dvbdev;
44255 - struct file_operations *dvbdevfops;
44256 + file_operations_no_const *dvbdevfops;
44257 struct device *clsdev;
44258 int minor;
44259 int id;
44260 diff --git a/drivers/media/dvb-frontends/af9033.h b/drivers/media/dvb-frontends/af9033.h
44261 index 539f4db..cdd403b 100644
44262 --- a/drivers/media/dvb-frontends/af9033.h
44263 +++ b/drivers/media/dvb-frontends/af9033.h
44264 @@ -82,7 +82,7 @@ struct af9033_ops {
44265 int (*pid_filter_ctrl)(struct dvb_frontend *fe, int onoff);
44266 int (*pid_filter)(struct dvb_frontend *fe, int index, u16 pid,
44267 int onoff);
44268 -};
44269 +} __no_const;
44270
44271
44272 #if IS_ENABLED(CONFIG_DVB_AF9033)
44273 diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
44274 index 9b6c3bb..baeb5c7 100644
44275 --- a/drivers/media/dvb-frontends/dib3000.h
44276 +++ b/drivers/media/dvb-frontends/dib3000.h
44277 @@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
44278 int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
44279 int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
44280 int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
44281 -};
44282 +} __no_const;
44283
44284 #if IS_ENABLED(CONFIG_DVB_DIB3000MB)
44285 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
44286 diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
44287 index ed8cb90..5ef7f79 100644
44288 --- a/drivers/media/pci/cx88/cx88-video.c
44289 +++ b/drivers/media/pci/cx88/cx88-video.c
44290 @@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
44291
44292 /* ------------------------------------------------------------------ */
44293
44294 -static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44295 -static unsigned int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44296 -static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44297 +static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44298 +static int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44299 +static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44300
44301 module_param_array(video_nr, int, NULL, 0444);
44302 module_param_array(vbi_nr, int, NULL, 0444);
44303 diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
44304 index 802642d..5534900 100644
44305 --- a/drivers/media/pci/ivtv/ivtv-driver.c
44306 +++ b/drivers/media/pci/ivtv/ivtv-driver.c
44307 @@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
44308 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
44309
44310 /* ivtv instance counter */
44311 -static atomic_t ivtv_instance = ATOMIC_INIT(0);
44312 +static atomic_unchecked_t ivtv_instance = ATOMIC_INIT(0);
44313
44314 /* Parameter declarations */
44315 static int cardtype[IVTV_MAX_CARDS];
44316 diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
44317 index 9a726ea..f5e9b52 100644
44318 --- a/drivers/media/platform/omap/omap_vout.c
44319 +++ b/drivers/media/platform/omap/omap_vout.c
44320 @@ -63,7 +63,6 @@ enum omap_vout_channels {
44321 OMAP_VIDEO2,
44322 };
44323
44324 -static struct videobuf_queue_ops video_vbq_ops;
44325 /* Variables configurable through module params*/
44326 static u32 video1_numbuffers = 3;
44327 static u32 video2_numbuffers = 3;
44328 @@ -1015,6 +1014,12 @@ static int omap_vout_open(struct file *file)
44329 {
44330 struct videobuf_queue *q;
44331 struct omap_vout_device *vout = NULL;
44332 + static struct videobuf_queue_ops video_vbq_ops = {
44333 + .buf_setup = omap_vout_buffer_setup,
44334 + .buf_prepare = omap_vout_buffer_prepare,
44335 + .buf_release = omap_vout_buffer_release,
44336 + .buf_queue = omap_vout_buffer_queue,
44337 + };
44338
44339 vout = video_drvdata(file);
44340 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
44341 @@ -1032,10 +1037,6 @@ static int omap_vout_open(struct file *file)
44342 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
44343
44344 q = &vout->vbq;
44345 - video_vbq_ops.buf_setup = omap_vout_buffer_setup;
44346 - video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
44347 - video_vbq_ops.buf_release = omap_vout_buffer_release;
44348 - video_vbq_ops.buf_queue = omap_vout_buffer_queue;
44349 spin_lock_init(&vout->vbq_lock);
44350
44351 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
44352 diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
44353 index fb2acc5..a2fcbdc4 100644
44354 --- a/drivers/media/platform/s5p-tv/mixer.h
44355 +++ b/drivers/media/platform/s5p-tv/mixer.h
44356 @@ -156,7 +156,7 @@ struct mxr_layer {
44357 /** layer index (unique identifier) */
44358 int idx;
44359 /** callbacks for layer methods */
44360 - struct mxr_layer_ops ops;
44361 + struct mxr_layer_ops *ops;
44362 /** format array */
44363 const struct mxr_format **fmt_array;
44364 /** size of format array */
44365 diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
44366 index 74344c7..a39e70e 100644
44367 --- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
44368 +++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
44369 @@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
44370 {
44371 struct mxr_layer *layer;
44372 int ret;
44373 - struct mxr_layer_ops ops = {
44374 + static struct mxr_layer_ops ops = {
44375 .release = mxr_graph_layer_release,
44376 .buffer_set = mxr_graph_buffer_set,
44377 .stream_set = mxr_graph_stream_set,
44378 diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
44379 index b713403..53cb5ad 100644
44380 --- a/drivers/media/platform/s5p-tv/mixer_reg.c
44381 +++ b/drivers/media/platform/s5p-tv/mixer_reg.c
44382 @@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
44383 layer->update_buf = next;
44384 }
44385
44386 - layer->ops.buffer_set(layer, layer->update_buf);
44387 + layer->ops->buffer_set(layer, layer->update_buf);
44388
44389 if (done && done != layer->shadow_buf)
44390 vb2_buffer_done(&done->vb, VB2_BUF_STATE_DONE);
44391 diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
44392 index a1ce55f..4a3c4d9 100644
44393 --- a/drivers/media/platform/s5p-tv/mixer_video.c
44394 +++ b/drivers/media/platform/s5p-tv/mixer_video.c
44395 @@ -210,7 +210,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
44396 layer->geo.src.height = layer->geo.src.full_height;
44397
44398 mxr_geometry_dump(mdev, &layer->geo);
44399 - layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
44400 + layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
44401 mxr_geometry_dump(mdev, &layer->geo);
44402 }
44403
44404 @@ -228,7 +228,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
44405 layer->geo.dst.full_width = mbus_fmt.width;
44406 layer->geo.dst.full_height = mbus_fmt.height;
44407 layer->geo.dst.field = mbus_fmt.field;
44408 - layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
44409 + layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
44410
44411 mxr_geometry_dump(mdev, &layer->geo);
44412 }
44413 @@ -334,7 +334,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
44414 /* set source size to highest accepted value */
44415 geo->src.full_width = max(geo->dst.full_width, pix->width);
44416 geo->src.full_height = max(geo->dst.full_height, pix->height);
44417 - layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
44418 + layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
44419 mxr_geometry_dump(mdev, &layer->geo);
44420 /* set cropping to total visible screen */
44421 geo->src.width = pix->width;
44422 @@ -342,12 +342,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
44423 geo->src.x_offset = 0;
44424 geo->src.y_offset = 0;
44425 /* assure consistency of geometry */
44426 - layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
44427 + layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
44428 mxr_geometry_dump(mdev, &layer->geo);
44429 /* set full size to lowest possible value */
44430 geo->src.full_width = 0;
44431 geo->src.full_height = 0;
44432 - layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
44433 + layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
44434 mxr_geometry_dump(mdev, &layer->geo);
44435
44436 /* returning results */
44437 @@ -474,7 +474,7 @@ static int mxr_s_selection(struct file *file, void *fh,
44438 target->width = s->r.width;
44439 target->height = s->r.height;
44440
44441 - layer->ops.fix_geometry(layer, stage, s->flags);
44442 + layer->ops->fix_geometry(layer, stage, s->flags);
44443
44444 /* retrieve update selection rectangle */
44445 res.left = target->x_offset;
44446 @@ -950,13 +950,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
44447 mxr_output_get(mdev);
44448
44449 mxr_layer_update_output(layer);
44450 - layer->ops.format_set(layer);
44451 + layer->ops->format_set(layer);
44452 /* enabling layer in hardware */
44453 spin_lock_irqsave(&layer->enq_slock, flags);
44454 layer->state = MXR_LAYER_STREAMING;
44455 spin_unlock_irqrestore(&layer->enq_slock, flags);
44456
44457 - layer->ops.stream_set(layer, MXR_ENABLE);
44458 + layer->ops->stream_set(layer, MXR_ENABLE);
44459 mxr_streamer_get(mdev);
44460
44461 return 0;
44462 @@ -1026,7 +1026,7 @@ static int stop_streaming(struct vb2_queue *vq)
44463 spin_unlock_irqrestore(&layer->enq_slock, flags);
44464
44465 /* disabling layer in hardware */
44466 - layer->ops.stream_set(layer, MXR_DISABLE);
44467 + layer->ops->stream_set(layer, MXR_DISABLE);
44468 /* remove one streamer */
44469 mxr_streamer_put(mdev);
44470 /* allow changes in output configuration */
44471 @@ -1065,8 +1065,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
44472
44473 void mxr_layer_release(struct mxr_layer *layer)
44474 {
44475 - if (layer->ops.release)
44476 - layer->ops.release(layer);
44477 + if (layer->ops->release)
44478 + layer->ops->release(layer);
44479 }
44480
44481 void mxr_base_layer_release(struct mxr_layer *layer)
44482 @@ -1092,7 +1092,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
44483
44484 layer->mdev = mdev;
44485 layer->idx = idx;
44486 - layer->ops = *ops;
44487 + layer->ops = ops;
44488
44489 spin_lock_init(&layer->enq_slock);
44490 INIT_LIST_HEAD(&layer->enq_list);
44491 diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
44492 index c9388c4..ce71ece 100644
44493 --- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
44494 +++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
44495 @@ -206,7 +206,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
44496 {
44497 struct mxr_layer *layer;
44498 int ret;
44499 - struct mxr_layer_ops ops = {
44500 + static struct mxr_layer_ops ops = {
44501 .release = mxr_vp_layer_release,
44502 .buffer_set = mxr_vp_buffer_set,
44503 .stream_set = mxr_vp_stream_set,
44504 diff --git a/drivers/media/platform/vivi.c b/drivers/media/platform/vivi.c
44505 index 3890f4f..b5c7511 100644
44506 --- a/drivers/media/platform/vivi.c
44507 +++ b/drivers/media/platform/vivi.c
44508 @@ -58,8 +58,8 @@ MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");
44509 MODULE_LICENSE("Dual BSD/GPL");
44510 MODULE_VERSION(VIVI_VERSION);
44511
44512 -static unsigned video_nr = -1;
44513 -module_param(video_nr, uint, 0644);
44514 +static int video_nr = -1;
44515 +module_param(video_nr, int, 0644);
44516 MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect");
44517
44518 static unsigned n_devs = 1;
44519 diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
44520 index d719e59..63f3470 100644
44521 --- a/drivers/media/radio/radio-cadet.c
44522 +++ b/drivers/media/radio/radio-cadet.c
44523 @@ -333,6 +333,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
44524 unsigned char readbuf[RDS_BUFFER];
44525 int i = 0;
44526
44527 + if (count > RDS_BUFFER)
44528 + return -EFAULT;
44529 mutex_lock(&dev->lock);
44530 if (dev->rdsstat == 0)
44531 cadet_start_rds(dev);
44532 @@ -349,8 +351,9 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
44533 readbuf[i++] = dev->rdsbuf[dev->rdsout++];
44534 mutex_unlock(&dev->lock);
44535
44536 - if (i && copy_to_user(data, readbuf, i))
44537 - return -EFAULT;
44538 + if (i > sizeof(readbuf) || (i && copy_to_user(data, readbuf, i)))
44539 + i = -EFAULT;
44540 +
44541 return i;
44542 }
44543
44544 diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
44545 index 5236035..c622c74 100644
44546 --- a/drivers/media/radio/radio-maxiradio.c
44547 +++ b/drivers/media/radio/radio-maxiradio.c
44548 @@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
44549 /* TEA5757 pin mappings */
44550 static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
44551
44552 -static atomic_t maxiradio_instance = ATOMIC_INIT(0);
44553 +static atomic_unchecked_t maxiradio_instance = ATOMIC_INIT(0);
44554
44555 #define PCI_VENDOR_ID_GUILLEMOT 0x5046
44556 #define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
44557 diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
44558 index 050b3bb..79f62b9 100644
44559 --- a/drivers/media/radio/radio-shark.c
44560 +++ b/drivers/media/radio/radio-shark.c
44561 @@ -79,7 +79,7 @@ struct shark_device {
44562 u32 last_val;
44563 };
44564
44565 -static atomic_t shark_instance = ATOMIC_INIT(0);
44566 +static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
44567
44568 static void shark_write_val(struct snd_tea575x *tea, u32 val)
44569 {
44570 diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
44571 index 8654e0d..0608a64 100644
44572 --- a/drivers/media/radio/radio-shark2.c
44573 +++ b/drivers/media/radio/radio-shark2.c
44574 @@ -74,7 +74,7 @@ struct shark_device {
44575 u8 *transfer_buffer;
44576 };
44577
44578 -static atomic_t shark_instance = ATOMIC_INIT(0);
44579 +static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
44580
44581 static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
44582 {
44583 diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
44584 index 2fd9009..278cc1e 100644
44585 --- a/drivers/media/radio/radio-si476x.c
44586 +++ b/drivers/media/radio/radio-si476x.c
44587 @@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
44588 struct si476x_radio *radio;
44589 struct v4l2_ctrl *ctrl;
44590
44591 - static atomic_t instance = ATOMIC_INIT(0);
44592 + static atomic_unchecked_t instance = ATOMIC_INIT(0);
44593
44594 radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
44595 if (!radio)
44596 diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
44597 index a1c641e..3007da9 100644
44598 --- a/drivers/media/usb/dvb-usb/cxusb.c
44599 +++ b/drivers/media/usb/dvb-usb/cxusb.c
44600 @@ -1112,7 +1112,7 @@ static struct dib0070_config dib7070p_dib0070_config = {
44601
44602 struct dib0700_adapter_state {
44603 int (*set_param_save) (struct dvb_frontend *);
44604 -};
44605 +} __no_const;
44606
44607 static int dib7070_set_param_override(struct dvb_frontend *fe)
44608 {
44609 diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
44610 index 733a7ff..f8b52e3 100644
44611 --- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
44612 +++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
44613 @@ -35,42 +35,57 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
44614
44615 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
44616 {
44617 - struct hexline hx;
44618 - u8 reset;
44619 + struct hexline *hx;
44620 + u8 *reset;
44621 int ret,pos=0;
44622
44623 + reset = kmalloc(1, GFP_KERNEL);
44624 + if (reset == NULL)
44625 + return -ENOMEM;
44626 +
44627 + hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
44628 + if (hx == NULL) {
44629 + kfree(reset);
44630 + return -ENOMEM;
44631 + }
44632 +
44633 /* stop the CPU */
44634 - reset = 1;
44635 - if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
44636 + reset[0] = 1;
44637 + if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1)) != 1)
44638 err("could not stop the USB controller CPU.");
44639
44640 - while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
44641 - deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
44642 - ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
44643 + while ((ret = dvb_usb_get_hexline(fw,hx,&pos)) > 0) {
44644 + deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx->addr,hx->len,hx->chk);
44645 + ret = usb_cypress_writemem(udev,hx->addr,hx->data,hx->len);
44646
44647 - if (ret != hx.len) {
44648 + if (ret != hx->len) {
44649 err("error while transferring firmware "
44650 "(transferred size: %d, block size: %d)",
44651 - ret,hx.len);
44652 + ret,hx->len);
44653 ret = -EINVAL;
44654 break;
44655 }
44656 }
44657 if (ret < 0) {
44658 err("firmware download failed at %d with %d",pos,ret);
44659 + kfree(reset);
44660 + kfree(hx);
44661 return ret;
44662 }
44663
44664 if (ret == 0) {
44665 /* restart the CPU */
44666 - reset = 0;
44667 - if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
44668 + reset[0] = 0;
44669 + if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1) != 1) {
44670 err("could not restart the USB controller CPU.");
44671 ret = -EINVAL;
44672 }
44673 } else
44674 ret = -EIO;
44675
44676 + kfree(reset);
44677 + kfree(hx);
44678 +
44679 return ret;
44680 }
44681 EXPORT_SYMBOL(usb_cypress_load_firmware);
44682 diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
44683 index ae0f56a..ec71784 100644
44684 --- a/drivers/media/usb/dvb-usb/dw2102.c
44685 +++ b/drivers/media/usb/dvb-usb/dw2102.c
44686 @@ -118,7 +118,7 @@ struct su3000_state {
44687
44688 struct s6x0_state {
44689 int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
44690 -};
44691 +} __no_const;
44692
44693 /* debug */
44694 static int dvb_usb_dw2102_debug;
44695 diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
44696 index 98d24ae..bc22415 100644
44697 --- a/drivers/media/usb/dvb-usb/technisat-usb2.c
44698 +++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
44699 @@ -87,8 +87,11 @@ struct technisat_usb2_state {
44700 static int technisat_usb2_i2c_access(struct usb_device *udev,
44701 u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
44702 {
44703 - u8 b[64];
44704 - int ret, actual_length;
44705 + u8 *b = kmalloc(64, GFP_KERNEL);
44706 + int ret, actual_length, error = 0;
44707 +
44708 + if (b == NULL)
44709 + return -ENOMEM;
44710
44711 deb_i2c("i2c-access: %02x, tx: ", device_addr);
44712 debug_dump(tx, txlen, deb_i2c);
44713 @@ -121,7 +124,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
44714
44715 if (ret < 0) {
44716 err("i2c-error: out failed %02x = %d", device_addr, ret);
44717 - return -ENODEV;
44718 + error = -ENODEV;
44719 + goto out;
44720 }
44721
44722 ret = usb_bulk_msg(udev,
44723 @@ -129,7 +133,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
44724 b, 64, &actual_length, 1000);
44725 if (ret < 0) {
44726 err("i2c-error: in failed %02x = %d", device_addr, ret);
44727 - return -ENODEV;
44728 + error = -ENODEV;
44729 + goto out;
44730 }
44731
44732 if (b[0] != I2C_STATUS_OK) {
44733 @@ -137,8 +142,10 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
44734 /* handle tuner-i2c-nak */
44735 if (!(b[0] == I2C_STATUS_NAK &&
44736 device_addr == 0x60
44737 - /* && device_is_technisat_usb2 */))
44738 - return -ENODEV;
44739 + /* && device_is_technisat_usb2 */)) {
44740 + error = -ENODEV;
44741 + goto out;
44742 + }
44743 }
44744
44745 deb_i2c("status: %d, ", b[0]);
44746 @@ -152,7 +159,9 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
44747
44748 deb_i2c("\n");
44749
44750 - return 0;
44751 +out:
44752 + kfree(b);
44753 + return error;
44754 }
44755
44756 static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
44757 @@ -224,14 +233,16 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
44758 {
44759 int ret;
44760
44761 - u8 led[8] = {
44762 - red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
44763 - 0
44764 - };
44765 + u8 *led = kzalloc(8, GFP_KERNEL);
44766 +
44767 + if (led == NULL)
44768 + return -ENOMEM;
44769
44770 if (disable_led_control && state != LED_OFF)
44771 return 0;
44772
44773 + led[0] = red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST;
44774 +
44775 switch (state) {
44776 case LED_ON:
44777 led[1] = 0x82;
44778 @@ -263,16 +274,22 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
44779 red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
44780 USB_TYPE_VENDOR | USB_DIR_OUT,
44781 0, 0,
44782 - led, sizeof(led), 500);
44783 + led, 8, 500);
44784
44785 mutex_unlock(&d->i2c_mutex);
44786 +
44787 + kfree(led);
44788 +
44789 return ret;
44790 }
44791
44792 static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
44793 {
44794 int ret;
44795 - u8 b = 0;
44796 + u8 *b = kzalloc(1, GFP_KERNEL);
44797 +
44798 + if (b == NULL)
44799 + return -ENOMEM;
44800
44801 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
44802 return -EAGAIN;
44803 @@ -281,10 +298,12 @@ static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 gre
44804 SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
44805 USB_TYPE_VENDOR | USB_DIR_OUT,
44806 (red << 8) | green, 0,
44807 - &b, 1, 500);
44808 + b, 1, 500);
44809
44810 mutex_unlock(&d->i2c_mutex);
44811
44812 + kfree(b);
44813 +
44814 return ret;
44815 }
44816
44817 @@ -328,7 +347,7 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
44818 struct dvb_usb_device_description **desc, int *cold)
44819 {
44820 int ret;
44821 - u8 version[3];
44822 + u8 *version = kmalloc(3, GFP_KERNEL);
44823
44824 /* first select the interface */
44825 if (usb_set_interface(udev, 0, 1) != 0)
44826 @@ -338,11 +357,14 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
44827
44828 *cold = 0; /* by default do not download a firmware - just in case something is wrong */
44829
44830 + if (version == NULL)
44831 + return 0;
44832 +
44833 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
44834 GET_VERSION_INFO_VENDOR_REQUEST,
44835 USB_TYPE_VENDOR | USB_DIR_IN,
44836 0, 0,
44837 - version, sizeof(version), 500);
44838 + version, 3, 500);
44839
44840 if (ret < 0)
44841 *cold = 1;
44842 @@ -351,6 +373,8 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
44843 *cold = 0;
44844 }
44845
44846 + kfree(version);
44847 +
44848 return 0;
44849 }
44850
44851 @@ -591,10 +615,15 @@ static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
44852
44853 static int technisat_usb2_get_ir(struct dvb_usb_device *d)
44854 {
44855 - u8 buf[62], *b;
44856 + u8 *buf, *b;
44857 int ret;
44858 struct ir_raw_event ev;
44859
44860 + buf = kmalloc(62, GFP_KERNEL);
44861 +
44862 + if (buf == NULL)
44863 + return -ENOMEM;
44864 +
44865 buf[0] = GET_IR_DATA_VENDOR_REQUEST;
44866 buf[1] = 0x08;
44867 buf[2] = 0x8f;
44868 @@ -617,16 +646,20 @@ static int technisat_usb2_get_ir(struct dvb_usb_device *d)
44869 GET_IR_DATA_VENDOR_REQUEST,
44870 USB_TYPE_VENDOR | USB_DIR_IN,
44871 0x8080, 0,
44872 - buf, sizeof(buf), 500);
44873 + buf, 62, 500);
44874
44875 unlock:
44876 mutex_unlock(&d->i2c_mutex);
44877
44878 - if (ret < 0)
44879 + if (ret < 0) {
44880 + kfree(buf);
44881 return ret;
44882 + }
44883
44884 - if (ret == 1)
44885 + if (ret == 1) {
44886 + kfree(buf);
44887 return 0; /* no key pressed */
44888 + }
44889
44890 /* decoding */
44891 b = buf+1;
44892 @@ -653,6 +686,8 @@ unlock:
44893
44894 ir_raw_event_handle(d->rc_dev);
44895
44896 + kfree(buf);
44897 +
44898 return 1;
44899 }
44900
44901 diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
44902 index 7e2411c..cef73ca 100644
44903 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
44904 +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
44905 @@ -328,7 +328,7 @@ struct v4l2_buffer32 {
44906 __u32 reserved;
44907 };
44908
44909 -static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
44910 +static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
44911 enum v4l2_memory memory)
44912 {
44913 void __user *up_pln;
44914 @@ -357,7 +357,7 @@ static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
44915 return 0;
44916 }
44917
44918 -static int put_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
44919 +static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
44920 enum v4l2_memory memory)
44921 {
44922 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
44923 @@ -427,7 +427,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
44924 * by passing a very big num_planes value */
44925 uplane = compat_alloc_user_space(num_planes *
44926 sizeof(struct v4l2_plane));
44927 - kp->m.planes = uplane;
44928 + kp->m.planes = (struct v4l2_plane __force_kernel *)uplane;
44929
44930 while (--num_planes >= 0) {
44931 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
44932 @@ -498,7 +498,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
44933 if (num_planes == 0)
44934 return 0;
44935
44936 - uplane = kp->m.planes;
44937 + uplane = (struct v4l2_plane __force_user *)kp->m.planes;
44938 if (get_user(p, &up->m.planes))
44939 return -EFAULT;
44940 uplane32 = compat_ptr(p);
44941 @@ -552,7 +552,7 @@ static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_frame
44942 get_user(kp->capability, &up->capability) ||
44943 get_user(kp->flags, &up->flags))
44944 return -EFAULT;
44945 - kp->base = compat_ptr(tmp);
44946 + kp->base = (void __force_kernel *)compat_ptr(tmp);
44947 get_v4l2_pix_format(&kp->fmt, &up->fmt);
44948 return 0;
44949 }
44950 @@ -658,7 +658,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
44951 n * sizeof(struct v4l2_ext_control32)))
44952 return -EFAULT;
44953 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
44954 - kp->controls = kcontrols;
44955 + kp->controls = (struct v4l2_ext_control __force_kernel *)kcontrols;
44956 while (--n >= 0) {
44957 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
44958 return -EFAULT;
44959 @@ -680,7 +680,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
44960 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
44961 {
44962 struct v4l2_ext_control32 __user *ucontrols;
44963 - struct v4l2_ext_control __user *kcontrols = kp->controls;
44964 + struct v4l2_ext_control __user *kcontrols = (struct v4l2_ext_control __force_user *)kp->controls;
44965 int n = kp->count;
44966 compat_caddr_t p;
44967
44968 @@ -774,7 +774,7 @@ static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
44969 put_user(kp->start_block, &up->start_block) ||
44970 put_user(kp->blocks, &up->blocks) ||
44971 put_user(tmp, &up->edid) ||
44972 - copy_to_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
44973 + copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
44974 return -EFAULT;
44975 return 0;
44976 }
44977 diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
44978 index 55c6832..a91c7a6 100644
44979 --- a/drivers/media/v4l2-core/v4l2-ctrls.c
44980 +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
44981 @@ -1431,8 +1431,8 @@ static int validate_new(const struct v4l2_ctrl *ctrl,
44982 return 0;
44983
44984 case V4L2_CTRL_TYPE_STRING:
44985 - len = strlen(c->string);
44986 - if (len < ctrl->minimum)
44987 + len = strlen_user(c->string);
44988 + if (!len || len < ctrl->minimum)
44989 return -ERANGE;
44990 if ((len - ctrl->minimum) % ctrl->step)
44991 return -ERANGE;
44992 diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
44993 index 02d1b63..5fd6b16 100644
44994 --- a/drivers/media/v4l2-core/v4l2-device.c
44995 +++ b/drivers/media/v4l2-core/v4l2-device.c
44996 @@ -75,9 +75,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
44997 EXPORT_SYMBOL_GPL(v4l2_device_put);
44998
44999 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
45000 - atomic_t *instance)
45001 + atomic_unchecked_t *instance)
45002 {
45003 - int num = atomic_inc_return(instance) - 1;
45004 + int num = atomic_inc_return_unchecked(instance) - 1;
45005 int len = strlen(basename);
45006
45007 if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
45008 diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
45009 index d9113cc..7de6ccc 100644
45010 --- a/drivers/media/v4l2-core/v4l2-ioctl.c
45011 +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
45012 @@ -2003,7 +2003,8 @@ struct v4l2_ioctl_info {
45013 struct file *file, void *fh, void *p);
45014 } u;
45015 void (*debug)(const void *arg, bool write_only);
45016 -};
45017 +} __do_const;
45018 +typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
45019
45020 /* This control needs a priority check */
45021 #define INFO_FL_PRIO (1 << 0)
45022 @@ -2186,7 +2187,7 @@ static long __video_do_ioctl(struct file *file,
45023 struct video_device *vfd = video_devdata(file);
45024 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
45025 bool write_only = false;
45026 - struct v4l2_ioctl_info default_info;
45027 + v4l2_ioctl_info_no_const default_info;
45028 const struct v4l2_ioctl_info *info;
45029 void *fh = file->private_data;
45030 struct v4l2_fh *vfh = NULL;
45031 @@ -2260,7 +2261,7 @@ done:
45032 }
45033
45034 static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
45035 - void * __user *user_ptr, void ***kernel_ptr)
45036 + void __user **user_ptr, void ***kernel_ptr)
45037 {
45038 int ret = 0;
45039
45040 @@ -2276,7 +2277,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
45041 ret = -EINVAL;
45042 break;
45043 }
45044 - *user_ptr = (void __user *)buf->m.planes;
45045 + *user_ptr = (void __force_user *)buf->m.planes;
45046 *kernel_ptr = (void *)&buf->m.planes;
45047 *array_size = sizeof(struct v4l2_plane) * buf->length;
45048 ret = 1;
45049 @@ -2311,7 +2312,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
45050 ret = -EINVAL;
45051 break;
45052 }
45053 - *user_ptr = (void __user *)ctrls->controls;
45054 + *user_ptr = (void __force_user *)ctrls->controls;
45055 *kernel_ptr = (void *)&ctrls->controls;
45056 *array_size = sizeof(struct v4l2_ext_control)
45057 * ctrls->count;
45058 @@ -2412,7 +2413,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
45059 }
45060
45061 if (has_array_args) {
45062 - *kernel_ptr = user_ptr;
45063 + *kernel_ptr = (void __force_kernel *)user_ptr;
45064 if (copy_to_user(user_ptr, mbuf, array_size))
45065 err = -EFAULT;
45066 goto out_array_args;
45067 diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
45068 index 570b18a..f880314 100644
45069 --- a/drivers/message/fusion/mptbase.c
45070 +++ b/drivers/message/fusion/mptbase.c
45071 @@ -6755,8 +6755,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
45072 seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
45073 seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
45074
45075 +#ifdef CONFIG_GRKERNSEC_HIDESYM
45076 + seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
45077 +#else
45078 seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n",
45079 (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
45080 +#endif
45081 +
45082 /*
45083 * Rounding UP to nearest 4-kB boundary here...
45084 */
45085 @@ -6769,7 +6774,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
45086 ioc->facts.GlobalCredits);
45087
45088 seq_printf(m, " Frames @ 0x%p (Dma @ 0x%p)\n",
45089 +#ifdef CONFIG_GRKERNSEC_HIDESYM
45090 + NULL, NULL);
45091 +#else
45092 (void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
45093 +#endif
45094 sz = (ioc->reply_sz * ioc->reply_depth) + 128;
45095 seq_printf(m, " {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
45096 ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
45097 diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
45098 index 00d339c..2ea899d 100644
45099 --- a/drivers/message/fusion/mptsas.c
45100 +++ b/drivers/message/fusion/mptsas.c
45101 @@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
45102 return 0;
45103 }
45104
45105 +static inline void
45106 +mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
45107 +{
45108 + if (phy_info->port_details) {
45109 + phy_info->port_details->rphy = rphy;
45110 + dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
45111 + ioc->name, rphy));
45112 + }
45113 +
45114 + if (rphy) {
45115 + dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
45116 + &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
45117 + dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
45118 + ioc->name, rphy, rphy->dev.release));
45119 + }
45120 +}
45121 +
45122 /* no mutex */
45123 static void
45124 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
45125 @@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
45126 return NULL;
45127 }
45128
45129 -static inline void
45130 -mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
45131 -{
45132 - if (phy_info->port_details) {
45133 - phy_info->port_details->rphy = rphy;
45134 - dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
45135 - ioc->name, rphy));
45136 - }
45137 -
45138 - if (rphy) {
45139 - dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
45140 - &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
45141 - dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
45142 - ioc->name, rphy, rphy->dev.release));
45143 - }
45144 -}
45145 -
45146 static inline struct sas_port *
45147 mptsas_get_port(struct mptsas_phyinfo *phy_info)
45148 {
45149 diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
45150 index 727819c..ad74694 100644
45151 --- a/drivers/message/fusion/mptscsih.c
45152 +++ b/drivers/message/fusion/mptscsih.c
45153 @@ -1271,15 +1271,16 @@ mptscsih_info(struct Scsi_Host *SChost)
45154
45155 h = shost_priv(SChost);
45156
45157 - if (h) {
45158 - if (h->info_kbuf == NULL)
45159 - if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
45160 - return h->info_kbuf;
45161 - h->info_kbuf[0] = '\0';
45162 + if (!h)
45163 + return NULL;
45164
45165 - mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
45166 - h->info_kbuf[size-1] = '\0';
45167 - }
45168 + if (h->info_kbuf == NULL)
45169 + if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
45170 + return h->info_kbuf;
45171 + h->info_kbuf[0] = '\0';
45172 +
45173 + mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
45174 + h->info_kbuf[size-1] = '\0';
45175
45176 return h->info_kbuf;
45177 }
45178 diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
45179 index b7d87cd..3fb36da 100644
45180 --- a/drivers/message/i2o/i2o_proc.c
45181 +++ b/drivers/message/i2o/i2o_proc.c
45182 @@ -255,12 +255,6 @@ static char *scsi_devices[] = {
45183 "Array Controller Device"
45184 };
45185
45186 -static char *chtostr(char *tmp, u8 *chars, int n)
45187 -{
45188 - tmp[0] = 0;
45189 - return strncat(tmp, (char *)chars, n);
45190 -}
45191 -
45192 static int i2o_report_query_status(struct seq_file *seq, int block_status,
45193 char *group)
45194 {
45195 @@ -707,9 +701,9 @@ static int i2o_seq_show_status(struct seq_file *seq, void *v)
45196 static int i2o_seq_show_hw(struct seq_file *seq, void *v)
45197 {
45198 struct i2o_controller *c = (struct i2o_controller *)seq->private;
45199 - static u32 work32[5];
45200 - static u8 *work8 = (u8 *) work32;
45201 - static u16 *work16 = (u16 *) work32;
45202 + u32 work32[5];
45203 + u8 *work8 = (u8 *) work32;
45204 + u16 *work16 = (u16 *) work32;
45205 int token;
45206 u32 hwcap;
45207
45208 @@ -790,7 +784,6 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
45209 } *result;
45210
45211 i2o_exec_execute_ddm_table ddm_table;
45212 - char tmp[28 + 1];
45213
45214 result = kmalloc(sizeof(*result), GFP_KERNEL);
45215 if (!result)
45216 @@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
45217
45218 seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
45219 seq_printf(seq, "%-#8x", ddm_table.module_id);
45220 - seq_printf(seq, "%-29s",
45221 - chtostr(tmp, ddm_table.module_name_version, 28));
45222 + seq_printf(seq, "%-.28s", ddm_table.module_name_version);
45223 seq_printf(seq, "%9d ", ddm_table.data_size);
45224 seq_printf(seq, "%8d", ddm_table.code_size);
45225
45226 @@ -893,7 +885,6 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
45227
45228 i2o_driver_result_table *result;
45229 i2o_driver_store_table *dst;
45230 - char tmp[28 + 1];
45231
45232 result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
45233 if (result == NULL)
45234 @@ -928,9 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
45235
45236 seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
45237 seq_printf(seq, "%-#8x", dst->module_id);
45238 - seq_printf(seq, "%-29s",
45239 - chtostr(tmp, dst->module_name_version, 28));
45240 - seq_printf(seq, "%-9s", chtostr(tmp, dst->date, 8));
45241 + seq_printf(seq, "%-.28s", dst->module_name_version);
45242 + seq_printf(seq, "%-.8s", dst->date);
45243 seq_printf(seq, "%8d ", dst->module_size);
45244 seq_printf(seq, "%8d ", dst->mpb_size);
45245 seq_printf(seq, "0x%04x", dst->module_flags);
45246 @@ -1246,11 +1236,10 @@ static int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
45247 static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
45248 {
45249 struct i2o_device *d = (struct i2o_device *)seq->private;
45250 - static u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
45251 + u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
45252 // == (allow) 512d bytes (max)
45253 - static u16 *work16 = (u16 *) work32;
45254 + u16 *work16 = (u16 *) work32;
45255 int token;
45256 - char tmp[16 + 1];
45257
45258 token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
45259
45260 @@ -1262,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
45261 seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0]));
45262 seq_printf(seq, "Owner TID : %0#5x\n", work16[2]);
45263 seq_printf(seq, "Parent TID : %0#5x\n", work16[3]);
45264 - seq_printf(seq, "Vendor info : %s\n",
45265 - chtostr(tmp, (u8 *) (work32 + 2), 16));
45266 - seq_printf(seq, "Product info : %s\n",
45267 - chtostr(tmp, (u8 *) (work32 + 6), 16));
45268 - seq_printf(seq, "Description : %s\n",
45269 - chtostr(tmp, (u8 *) (work32 + 10), 16));
45270 - seq_printf(seq, "Product rev. : %s\n",
45271 - chtostr(tmp, (u8 *) (work32 + 14), 8));
45272 + seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2));
45273 + seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6));
45274 + seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10));
45275 + seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14));
45276
45277 seq_printf(seq, "Serial number : ");
45278 print_serial_number(seq, (u8 *) (work32 + 16),
45279 @@ -1306,8 +1291,6 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
45280 u8 pad[256]; // allow up to 256 byte (max) serial number
45281 } result;
45282
45283 - char tmp[24 + 1];
45284 -
45285 token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
45286
45287 if (token < 0) {
45288 @@ -1316,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
45289 }
45290
45291 seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
45292 - seq_printf(seq, "Module name : %s\n",
45293 - chtostr(tmp, result.module_name, 24));
45294 - seq_printf(seq, "Module revision : %s\n",
45295 - chtostr(tmp, result.module_rev, 8));
45296 + seq_printf(seq, "Module name : %.24s\n", result.module_name);
45297 + seq_printf(seq, "Module revision : %.8s\n", result.module_rev);
45298
45299 seq_printf(seq, "Serial number : ");
45300 print_serial_number(seq, result.serial_number, sizeof(result) - 36);
45301 @@ -1343,8 +1324,6 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
45302 u8 instance_number[4];
45303 } result;
45304
45305 - char tmp[64 + 1];
45306 -
45307 token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
45308
45309 if (token < 0) {
45310 @@ -1352,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
45311 return 0;
45312 }
45313
45314 - seq_printf(seq, "Device name : %s\n",
45315 - chtostr(tmp, result.device_name, 64));
45316 - seq_printf(seq, "Service name : %s\n",
45317 - chtostr(tmp, result.service_name, 64));
45318 - seq_printf(seq, "Physical name : %s\n",
45319 - chtostr(tmp, result.physical_location, 64));
45320 - seq_printf(seq, "Instance number : %s\n",
45321 - chtostr(tmp, result.instance_number, 4));
45322 + seq_printf(seq, "Device name : %.64s\n", result.device_name);
45323 + seq_printf(seq, "Service name : %.64s\n", result.service_name);
45324 + seq_printf(seq, "Physical name : %.64s\n", result.physical_location);
45325 + seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
45326
45327 return 0;
45328 }
45329 @@ -1368,9 +1343,9 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
45330 static int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
45331 {
45332 struct i2o_device *d = (struct i2o_device *)seq->private;
45333 - static u32 work32[12];
45334 - static u16 *work16 = (u16 *) work32;
45335 - static u8 *work8 = (u8 *) work32;
45336 + u32 work32[12];
45337 + u16 *work16 = (u16 *) work32;
45338 + u8 *work8 = (u8 *) work32;
45339 int token;
45340
45341 token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
45342 diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
45343 index 92752fb..a7494f6 100644
45344 --- a/drivers/message/i2o/iop.c
45345 +++ b/drivers/message/i2o/iop.c
45346 @@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
45347
45348 spin_lock_irqsave(&c->context_list_lock, flags);
45349
45350 - if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
45351 - atomic_inc(&c->context_list_counter);
45352 + if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
45353 + atomic_inc_unchecked(&c->context_list_counter);
45354
45355 - entry->context = atomic_read(&c->context_list_counter);
45356 + entry->context = atomic_read_unchecked(&c->context_list_counter);
45357
45358 list_add(&entry->list, &c->context_list);
45359
45360 @@ -1076,7 +1076,7 @@ struct i2o_controller *i2o_iop_alloc(void)
45361
45362 #if BITS_PER_LONG == 64
45363 spin_lock_init(&c->context_list_lock);
45364 - atomic_set(&c->context_list_counter, 0);
45365 + atomic_set_unchecked(&c->context_list_counter, 0);
45366 INIT_LIST_HEAD(&c->context_list);
45367 #endif
45368
45369 diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
45370 index d1a22aa..d0f7bf7 100644
45371 --- a/drivers/mfd/ab8500-debugfs.c
45372 +++ b/drivers/mfd/ab8500-debugfs.c
45373 @@ -100,7 +100,7 @@ static int irq_last;
45374 static u32 *irq_count;
45375 static int num_irqs;
45376
45377 -static struct device_attribute **dev_attr;
45378 +static device_attribute_no_const **dev_attr;
45379 static char **event_name;
45380
45381 static u8 avg_sample = SAMPLE_16;
45382 diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
45383 index a83eed5..62a58a9 100644
45384 --- a/drivers/mfd/max8925-i2c.c
45385 +++ b/drivers/mfd/max8925-i2c.c
45386 @@ -152,7 +152,7 @@ static int max8925_probe(struct i2c_client *client,
45387 const struct i2c_device_id *id)
45388 {
45389 struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
45390 - static struct max8925_chip *chip;
45391 + struct max8925_chip *chip;
45392 struct device_node *node = client->dev.of_node;
45393
45394 if (node && !pdata) {
45395 diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
45396 index 460a014..21d3061 100644
45397 --- a/drivers/mfd/tps65910.c
45398 +++ b/drivers/mfd/tps65910.c
45399 @@ -230,7 +230,7 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
45400 struct tps65910_platform_data *pdata)
45401 {
45402 int ret = 0;
45403 - static struct regmap_irq_chip *tps6591x_irqs_chip;
45404 + struct regmap_irq_chip *tps6591x_irqs_chip;
45405
45406 if (!irq) {
45407 dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
45408 diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
45409 index 596b1f6..5b6ab74 100644
45410 --- a/drivers/mfd/twl4030-irq.c
45411 +++ b/drivers/mfd/twl4030-irq.c
45412 @@ -34,6 +34,7 @@
45413 #include <linux/of.h>
45414 #include <linux/irqdomain.h>
45415 #include <linux/i2c/twl.h>
45416 +#include <asm/pgtable.h>
45417
45418 #include "twl-core.h"
45419
45420 @@ -725,10 +726,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
45421 * Install an irq handler for each of the SIH modules;
45422 * clone dummy irq_chip since PIH can't *do* anything
45423 */
45424 - twl4030_irq_chip = dummy_irq_chip;
45425 - twl4030_irq_chip.name = "twl4030";
45426 + pax_open_kernel();
45427 + memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
45428 + *(const char **)&twl4030_irq_chip.name = "twl4030";
45429
45430 - twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
45431 + *(void **)&twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
45432 + pax_close_kernel();
45433
45434 for (i = irq_base; i < irq_end; i++) {
45435 irq_set_chip_and_handler(i, &twl4030_irq_chip,
45436 diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
45437 index 464419b..64bae8d 100644
45438 --- a/drivers/misc/c2port/core.c
45439 +++ b/drivers/misc/c2port/core.c
45440 @@ -922,7 +922,9 @@ struct c2port_device *c2port_device_register(char *name,
45441 goto error_idr_alloc;
45442 c2dev->id = ret;
45443
45444 - bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
45445 + pax_open_kernel();
45446 + *(size_t *)&bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
45447 + pax_close_kernel();
45448
45449 c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
45450 "c2port%d", c2dev->id);
45451 diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
45452 index 3f2b625..945e179 100644
45453 --- a/drivers/misc/eeprom/sunxi_sid.c
45454 +++ b/drivers/misc/eeprom/sunxi_sid.c
45455 @@ -126,7 +126,9 @@ static int sunxi_sid_probe(struct platform_device *pdev)
45456
45457 platform_set_drvdata(pdev, sid_data);
45458
45459 - sid_bin_attr.size = sid_data->keysize;
45460 + pax_open_kernel();
45461 + *(size_t *)&sid_bin_attr.size = sid_data->keysize;
45462 + pax_close_kernel();
45463 if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
45464 return -ENODEV;
45465
45466 diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
45467 index 36f5d52..32311c3 100644
45468 --- a/drivers/misc/kgdbts.c
45469 +++ b/drivers/misc/kgdbts.c
45470 @@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
45471 char before[BREAK_INSTR_SIZE];
45472 char after[BREAK_INSTR_SIZE];
45473
45474 - probe_kernel_read(before, (char *)kgdbts_break_test,
45475 + probe_kernel_read(before, ktla_ktva((char *)kgdbts_break_test),
45476 BREAK_INSTR_SIZE);
45477 init_simple_test();
45478 ts.tst = plant_and_detach_test;
45479 @@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
45480 /* Activate test with initial breakpoint */
45481 if (!is_early)
45482 kgdb_breakpoint();
45483 - probe_kernel_read(after, (char *)kgdbts_break_test,
45484 + probe_kernel_read(after, ktla_ktva((char *)kgdbts_break_test),
45485 BREAK_INSTR_SIZE);
45486 if (memcmp(before, after, BREAK_INSTR_SIZE)) {
45487 printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
45488 diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
45489 index 3ef4627..8d00486 100644
45490 --- a/drivers/misc/lis3lv02d/lis3lv02d.c
45491 +++ b/drivers/misc/lis3lv02d/lis3lv02d.c
45492 @@ -497,7 +497,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
45493 * the lid is closed. This leads to interrupts as soon as a little move
45494 * is done.
45495 */
45496 - atomic_inc(&lis3->count);
45497 + atomic_inc_unchecked(&lis3->count);
45498
45499 wake_up_interruptible(&lis3->misc_wait);
45500 kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
45501 @@ -583,7 +583,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
45502 if (lis3->pm_dev)
45503 pm_runtime_get_sync(lis3->pm_dev);
45504
45505 - atomic_set(&lis3->count, 0);
45506 + atomic_set_unchecked(&lis3->count, 0);
45507 return 0;
45508 }
45509
45510 @@ -615,7 +615,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
45511 add_wait_queue(&lis3->misc_wait, &wait);
45512 while (true) {
45513 set_current_state(TASK_INTERRUPTIBLE);
45514 - data = atomic_xchg(&lis3->count, 0);
45515 + data = atomic_xchg_unchecked(&lis3->count, 0);
45516 if (data)
45517 break;
45518
45519 @@ -656,7 +656,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
45520 struct lis3lv02d, miscdev);
45521
45522 poll_wait(file, &lis3->misc_wait, wait);
45523 - if (atomic_read(&lis3->count))
45524 + if (atomic_read_unchecked(&lis3->count))
45525 return POLLIN | POLLRDNORM;
45526 return 0;
45527 }
45528 diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
45529 index c439c82..1f20f57 100644
45530 --- a/drivers/misc/lis3lv02d/lis3lv02d.h
45531 +++ b/drivers/misc/lis3lv02d/lis3lv02d.h
45532 @@ -297,7 +297,7 @@ struct lis3lv02d {
45533 struct input_polled_dev *idev; /* input device */
45534 struct platform_device *pdev; /* platform device */
45535 struct regulator_bulk_data regulators[2];
45536 - atomic_t count; /* interrupt count after last read */
45537 + atomic_unchecked_t count; /* interrupt count after last read */
45538 union axis_conversion ac; /* hw -> logical axis */
45539 int mapped_btns[3];
45540
45541 diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
45542 index 2f30bad..c4c13d0 100644
45543 --- a/drivers/misc/sgi-gru/gruhandles.c
45544 +++ b/drivers/misc/sgi-gru/gruhandles.c
45545 @@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
45546 unsigned long nsec;
45547
45548 nsec = CLKS2NSEC(clks);
45549 - atomic_long_inc(&mcs_op_statistics[op].count);
45550 - atomic_long_add(nsec, &mcs_op_statistics[op].total);
45551 + atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
45552 + atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
45553 if (mcs_op_statistics[op].max < nsec)
45554 mcs_op_statistics[op].max = nsec;
45555 }
45556 diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
45557 index 4f76359..cdfcb2e 100644
45558 --- a/drivers/misc/sgi-gru/gruprocfs.c
45559 +++ b/drivers/misc/sgi-gru/gruprocfs.c
45560 @@ -32,9 +32,9 @@
45561
45562 #define printstat(s, f) printstat_val(s, &gru_stats.f, #f)
45563
45564 -static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
45565 +static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
45566 {
45567 - unsigned long val = atomic_long_read(v);
45568 + unsigned long val = atomic_long_read_unchecked(v);
45569
45570 seq_printf(s, "%16lu %s\n", val, id);
45571 }
45572 @@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
45573
45574 seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
45575 for (op = 0; op < mcsop_last; op++) {
45576 - count = atomic_long_read(&mcs_op_statistics[op].count);
45577 - total = atomic_long_read(&mcs_op_statistics[op].total);
45578 + count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
45579 + total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
45580 max = mcs_op_statistics[op].max;
45581 seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
45582 count ? total / count : 0, max);
45583 diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
45584 index 5c3ce24..4915ccb 100644
45585 --- a/drivers/misc/sgi-gru/grutables.h
45586 +++ b/drivers/misc/sgi-gru/grutables.h
45587 @@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
45588 * GRU statistics.
45589 */
45590 struct gru_stats_s {
45591 - atomic_long_t vdata_alloc;
45592 - atomic_long_t vdata_free;
45593 - atomic_long_t gts_alloc;
45594 - atomic_long_t gts_free;
45595 - atomic_long_t gms_alloc;
45596 - atomic_long_t gms_free;
45597 - atomic_long_t gts_double_allocate;
45598 - atomic_long_t assign_context;
45599 - atomic_long_t assign_context_failed;
45600 - atomic_long_t free_context;
45601 - atomic_long_t load_user_context;
45602 - atomic_long_t load_kernel_context;
45603 - atomic_long_t lock_kernel_context;
45604 - atomic_long_t unlock_kernel_context;
45605 - atomic_long_t steal_user_context;
45606 - atomic_long_t steal_kernel_context;
45607 - atomic_long_t steal_context_failed;
45608 - atomic_long_t nopfn;
45609 - atomic_long_t asid_new;
45610 - atomic_long_t asid_next;
45611 - atomic_long_t asid_wrap;
45612 - atomic_long_t asid_reuse;
45613 - atomic_long_t intr;
45614 - atomic_long_t intr_cbr;
45615 - atomic_long_t intr_tfh;
45616 - atomic_long_t intr_spurious;
45617 - atomic_long_t intr_mm_lock_failed;
45618 - atomic_long_t call_os;
45619 - atomic_long_t call_os_wait_queue;
45620 - atomic_long_t user_flush_tlb;
45621 - atomic_long_t user_unload_context;
45622 - atomic_long_t user_exception;
45623 - atomic_long_t set_context_option;
45624 - atomic_long_t check_context_retarget_intr;
45625 - atomic_long_t check_context_unload;
45626 - atomic_long_t tlb_dropin;
45627 - atomic_long_t tlb_preload_page;
45628 - atomic_long_t tlb_dropin_fail_no_asid;
45629 - atomic_long_t tlb_dropin_fail_upm;
45630 - atomic_long_t tlb_dropin_fail_invalid;
45631 - atomic_long_t tlb_dropin_fail_range_active;
45632 - atomic_long_t tlb_dropin_fail_idle;
45633 - atomic_long_t tlb_dropin_fail_fmm;
45634 - atomic_long_t tlb_dropin_fail_no_exception;
45635 - atomic_long_t tfh_stale_on_fault;
45636 - atomic_long_t mmu_invalidate_range;
45637 - atomic_long_t mmu_invalidate_page;
45638 - atomic_long_t flush_tlb;
45639 - atomic_long_t flush_tlb_gru;
45640 - atomic_long_t flush_tlb_gru_tgh;
45641 - atomic_long_t flush_tlb_gru_zero_asid;
45642 + atomic_long_unchecked_t vdata_alloc;
45643 + atomic_long_unchecked_t vdata_free;
45644 + atomic_long_unchecked_t gts_alloc;
45645 + atomic_long_unchecked_t gts_free;
45646 + atomic_long_unchecked_t gms_alloc;
45647 + atomic_long_unchecked_t gms_free;
45648 + atomic_long_unchecked_t gts_double_allocate;
45649 + atomic_long_unchecked_t assign_context;
45650 + atomic_long_unchecked_t assign_context_failed;
45651 + atomic_long_unchecked_t free_context;
45652 + atomic_long_unchecked_t load_user_context;
45653 + atomic_long_unchecked_t load_kernel_context;
45654 + atomic_long_unchecked_t lock_kernel_context;
45655 + atomic_long_unchecked_t unlock_kernel_context;
45656 + atomic_long_unchecked_t steal_user_context;
45657 + atomic_long_unchecked_t steal_kernel_context;
45658 + atomic_long_unchecked_t steal_context_failed;
45659 + atomic_long_unchecked_t nopfn;
45660 + atomic_long_unchecked_t asid_new;
45661 + atomic_long_unchecked_t asid_next;
45662 + atomic_long_unchecked_t asid_wrap;
45663 + atomic_long_unchecked_t asid_reuse;
45664 + atomic_long_unchecked_t intr;
45665 + atomic_long_unchecked_t intr_cbr;
45666 + atomic_long_unchecked_t intr_tfh;
45667 + atomic_long_unchecked_t intr_spurious;
45668 + atomic_long_unchecked_t intr_mm_lock_failed;
45669 + atomic_long_unchecked_t call_os;
45670 + atomic_long_unchecked_t call_os_wait_queue;
45671 + atomic_long_unchecked_t user_flush_tlb;
45672 + atomic_long_unchecked_t user_unload_context;
45673 + atomic_long_unchecked_t user_exception;
45674 + atomic_long_unchecked_t set_context_option;
45675 + atomic_long_unchecked_t check_context_retarget_intr;
45676 + atomic_long_unchecked_t check_context_unload;
45677 + atomic_long_unchecked_t tlb_dropin;
45678 + atomic_long_unchecked_t tlb_preload_page;
45679 + atomic_long_unchecked_t tlb_dropin_fail_no_asid;
45680 + atomic_long_unchecked_t tlb_dropin_fail_upm;
45681 + atomic_long_unchecked_t tlb_dropin_fail_invalid;
45682 + atomic_long_unchecked_t tlb_dropin_fail_range_active;
45683 + atomic_long_unchecked_t tlb_dropin_fail_idle;
45684 + atomic_long_unchecked_t tlb_dropin_fail_fmm;
45685 + atomic_long_unchecked_t tlb_dropin_fail_no_exception;
45686 + atomic_long_unchecked_t tfh_stale_on_fault;
45687 + atomic_long_unchecked_t mmu_invalidate_range;
45688 + atomic_long_unchecked_t mmu_invalidate_page;
45689 + atomic_long_unchecked_t flush_tlb;
45690 + atomic_long_unchecked_t flush_tlb_gru;
45691 + atomic_long_unchecked_t flush_tlb_gru_tgh;
45692 + atomic_long_unchecked_t flush_tlb_gru_zero_asid;
45693
45694 - atomic_long_t copy_gpa;
45695 - atomic_long_t read_gpa;
45696 + atomic_long_unchecked_t copy_gpa;
45697 + atomic_long_unchecked_t read_gpa;
45698
45699 - atomic_long_t mesq_receive;
45700 - atomic_long_t mesq_receive_none;
45701 - atomic_long_t mesq_send;
45702 - atomic_long_t mesq_send_failed;
45703 - atomic_long_t mesq_noop;
45704 - atomic_long_t mesq_send_unexpected_error;
45705 - atomic_long_t mesq_send_lb_overflow;
45706 - atomic_long_t mesq_send_qlimit_reached;
45707 - atomic_long_t mesq_send_amo_nacked;
45708 - atomic_long_t mesq_send_put_nacked;
45709 - atomic_long_t mesq_page_overflow;
45710 - atomic_long_t mesq_qf_locked;
45711 - atomic_long_t mesq_qf_noop_not_full;
45712 - atomic_long_t mesq_qf_switch_head_failed;
45713 - atomic_long_t mesq_qf_unexpected_error;
45714 - atomic_long_t mesq_noop_unexpected_error;
45715 - atomic_long_t mesq_noop_lb_overflow;
45716 - atomic_long_t mesq_noop_qlimit_reached;
45717 - atomic_long_t mesq_noop_amo_nacked;
45718 - atomic_long_t mesq_noop_put_nacked;
45719 - atomic_long_t mesq_noop_page_overflow;
45720 + atomic_long_unchecked_t mesq_receive;
45721 + atomic_long_unchecked_t mesq_receive_none;
45722 + atomic_long_unchecked_t mesq_send;
45723 + atomic_long_unchecked_t mesq_send_failed;
45724 + atomic_long_unchecked_t mesq_noop;
45725 + atomic_long_unchecked_t mesq_send_unexpected_error;
45726 + atomic_long_unchecked_t mesq_send_lb_overflow;
45727 + atomic_long_unchecked_t mesq_send_qlimit_reached;
45728 + atomic_long_unchecked_t mesq_send_amo_nacked;
45729 + atomic_long_unchecked_t mesq_send_put_nacked;
45730 + atomic_long_unchecked_t mesq_page_overflow;
45731 + atomic_long_unchecked_t mesq_qf_locked;
45732 + atomic_long_unchecked_t mesq_qf_noop_not_full;
45733 + atomic_long_unchecked_t mesq_qf_switch_head_failed;
45734 + atomic_long_unchecked_t mesq_qf_unexpected_error;
45735 + atomic_long_unchecked_t mesq_noop_unexpected_error;
45736 + atomic_long_unchecked_t mesq_noop_lb_overflow;
45737 + atomic_long_unchecked_t mesq_noop_qlimit_reached;
45738 + atomic_long_unchecked_t mesq_noop_amo_nacked;
45739 + atomic_long_unchecked_t mesq_noop_put_nacked;
45740 + atomic_long_unchecked_t mesq_noop_page_overflow;
45741
45742 };
45743
45744 @@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
45745 tghop_invalidate, mcsop_last};
45746
45747 struct mcs_op_statistic {
45748 - atomic_long_t count;
45749 - atomic_long_t total;
45750 + atomic_long_unchecked_t count;
45751 + atomic_long_unchecked_t total;
45752 unsigned long max;
45753 };
45754
45755 @@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
45756
45757 #define STAT(id) do { \
45758 if (gru_options & OPT_STATS) \
45759 - atomic_long_inc(&gru_stats.id); \
45760 + atomic_long_inc_unchecked(&gru_stats.id); \
45761 } while (0)
45762
45763 #ifdef CONFIG_SGI_GRU_DEBUG
45764 diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
45765 index c862cd4..0d176fe 100644
45766 --- a/drivers/misc/sgi-xp/xp.h
45767 +++ b/drivers/misc/sgi-xp/xp.h
45768 @@ -288,7 +288,7 @@ struct xpc_interface {
45769 xpc_notify_func, void *);
45770 void (*received) (short, int, void *);
45771 enum xp_retval (*partid_to_nasids) (short, void *);
45772 -};
45773 +} __no_const;
45774
45775 extern struct xpc_interface xpc_interface;
45776
45777 diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
45778 index 01be66d..e3a0c7e 100644
45779 --- a/drivers/misc/sgi-xp/xp_main.c
45780 +++ b/drivers/misc/sgi-xp/xp_main.c
45781 @@ -78,13 +78,13 @@ xpc_notloaded(void)
45782 }
45783
45784 struct xpc_interface xpc_interface = {
45785 - (void (*)(int))xpc_notloaded,
45786 - (void (*)(int))xpc_notloaded,
45787 - (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
45788 - (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
45789 + .connect = (void (*)(int))xpc_notloaded,
45790 + .disconnect = (void (*)(int))xpc_notloaded,
45791 + .send = (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
45792 + .send_notify = (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
45793 void *))xpc_notloaded,
45794 - (void (*)(short, int, void *))xpc_notloaded,
45795 - (enum xp_retval(*)(short, void *))xpc_notloaded
45796 + .received = (void (*)(short, int, void *))xpc_notloaded,
45797 + .partid_to_nasids = (enum xp_retval(*)(short, void *))xpc_notloaded
45798 };
45799 EXPORT_SYMBOL_GPL(xpc_interface);
45800
45801 diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
45802 index b94d5f7..7f494c5 100644
45803 --- a/drivers/misc/sgi-xp/xpc.h
45804 +++ b/drivers/misc/sgi-xp/xpc.h
45805 @@ -835,6 +835,7 @@ struct xpc_arch_operations {
45806 void (*received_payload) (struct xpc_channel *, void *);
45807 void (*notify_senders_of_disconnect) (struct xpc_channel *);
45808 };
45809 +typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
45810
45811 /* struct xpc_partition act_state values (for XPC HB) */
45812
45813 @@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
45814 /* found in xpc_main.c */
45815 extern struct device *xpc_part;
45816 extern struct device *xpc_chan;
45817 -extern struct xpc_arch_operations xpc_arch_ops;
45818 +extern xpc_arch_operations_no_const xpc_arch_ops;
45819 extern int xpc_disengage_timelimit;
45820 extern int xpc_disengage_timedout;
45821 extern int xpc_activate_IRQ_rcvd;
45822 diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
45823 index 82dc574..8539ab2 100644
45824 --- a/drivers/misc/sgi-xp/xpc_main.c
45825 +++ b/drivers/misc/sgi-xp/xpc_main.c
45826 @@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
45827 .notifier_call = xpc_system_die,
45828 };
45829
45830 -struct xpc_arch_operations xpc_arch_ops;
45831 +xpc_arch_operations_no_const xpc_arch_ops;
45832
45833 /*
45834 * Timer function to enforce the timelimit on the partition disengage.
45835 @@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
45836
45837 if (((die_args->trapnr == X86_TRAP_MF) ||
45838 (die_args->trapnr == X86_TRAP_XF)) &&
45839 - !user_mode_vm(die_args->regs))
45840 + !user_mode(die_args->regs))
45841 xpc_die_deactivate();
45842
45843 break;
45844 diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
45845 index 452782b..0c10e40 100644
45846 --- a/drivers/mmc/card/block.c
45847 +++ b/drivers/mmc/card/block.c
45848 @@ -574,7 +574,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
45849 if (idata->ic.postsleep_min_us)
45850 usleep_range(idata->ic.postsleep_min_us, idata->ic.postsleep_max_us);
45851
45852 - if (copy_to_user(&(ic_ptr->response), cmd.resp, sizeof(cmd.resp))) {
45853 + if (copy_to_user(ic_ptr->response, cmd.resp, sizeof(cmd.resp))) {
45854 err = -EFAULT;
45855 goto cmd_rel_host;
45856 }
45857 diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
45858 index f51b5ba..86614a7 100644
45859 --- a/drivers/mmc/core/mmc_ops.c
45860 +++ b/drivers/mmc/core/mmc_ops.c
45861 @@ -247,7 +247,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
45862 void *data_buf;
45863 int is_on_stack;
45864
45865 - is_on_stack = object_is_on_stack(buf);
45866 + is_on_stack = object_starts_on_stack(buf);
45867 if (is_on_stack) {
45868 /*
45869 * dma onto stack is unsafe/nonportable, but callers to this
45870 diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
45871 index 6834977..824ee1b 100644
45872 --- a/drivers/mmc/host/dw_mmc.h
45873 +++ b/drivers/mmc/host/dw_mmc.h
45874 @@ -259,5 +259,5 @@ struct dw_mci_drv_data {
45875 int (*parse_dt)(struct dw_mci *host);
45876 int (*execute_tuning)(struct dw_mci_slot *slot, u32 opcode,
45877 struct dw_mci_tuning_data *tuning_data);
45878 -};
45879 +} __do_const;
45880 #endif /* _DW_MMC_H_ */
45881 diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
45882 index 771c60a..12cb615 100644
45883 --- a/drivers/mmc/host/mmci.c
45884 +++ b/drivers/mmc/host/mmci.c
45885 @@ -1570,7 +1570,9 @@ static int mmci_probe(struct amba_device *dev,
45886 mmc->caps2 = plat->capabilities2;
45887
45888 if (variant->busy_detect) {
45889 - mmci_ops.card_busy = mmci_card_busy;
45890 + pax_open_kernel();
45891 + *(void **)&mmci_ops.card_busy = mmci_card_busy;
45892 + pax_close_kernel();
45893 mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
45894 mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
45895 mmc->max_busy_timeout = 0;
45896 diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
45897 index b841bb7..d82712f5 100644
45898 --- a/drivers/mmc/host/sdhci-esdhc-imx.c
45899 +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
45900 @@ -1031,9 +1031,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
45901 host->mmc->caps |= MMC_CAP_1_8V_DDR;
45902 }
45903
45904 - if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
45905 - sdhci_esdhc_ops.platform_execute_tuning =
45906 + if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
45907 + pax_open_kernel();
45908 + *(void **)&sdhci_esdhc_ops.platform_execute_tuning =
45909 esdhc_executing_tuning;
45910 + pax_close_kernel();
45911 + }
45912
45913 if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
45914 writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
45915 diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
45916 index d61eb5a..88c0f5d 100644
45917 --- a/drivers/mmc/host/sdhci-s3c.c
45918 +++ b/drivers/mmc/host/sdhci-s3c.c
45919 @@ -657,9 +657,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
45920 * we can use overriding functions instead of default.
45921 */
45922 if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
45923 - sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
45924 - sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
45925 - sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
45926 + pax_open_kernel();
45927 + *(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
45928 + *(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
45929 + *(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
45930 + pax_close_kernel();
45931 }
45932
45933 /* It supports additional host capabilities if needed */
45934 diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
45935 index 6293855..3415551 100644
45936 --- a/drivers/mtd/chips/cfi_cmdset_0020.c
45937 +++ b/drivers/mtd/chips/cfi_cmdset_0020.c
45938 @@ -666,7 +666,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
45939 size_t totlen = 0, thislen;
45940 int ret = 0;
45941 size_t buflen = 0;
45942 - static char *buffer;
45943 + char *buffer;
45944
45945 if (!ECCBUF_SIZE) {
45946 /* We should fall back to a general writev implementation.
45947 diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
45948 index c07cd57..61c4fbd 100644
45949 --- a/drivers/mtd/nand/denali.c
45950 +++ b/drivers/mtd/nand/denali.c
45951 @@ -24,6 +24,7 @@
45952 #include <linux/slab.h>
45953 #include <linux/mtd/mtd.h>
45954 #include <linux/module.h>
45955 +#include <linux/slab.h>
45956
45957 #include "denali.h"
45958
45959 diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
45960 index bb77f75..47539b1 100644
45961 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
45962 +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
45963 @@ -370,7 +370,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
45964
45965 /* first try to map the upper buffer directly */
45966 if (virt_addr_valid(this->upper_buf) &&
45967 - !object_is_on_stack(this->upper_buf)) {
45968 + !object_starts_on_stack(this->upper_buf)) {
45969 sg_init_one(sgl, this->upper_buf, this->upper_len);
45970 ret = dma_map_sg(this->dev, sgl, 1, dr);
45971 if (ret == 0)
45972 diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
45973 index 51b9d6a..52af9a7 100644
45974 --- a/drivers/mtd/nftlmount.c
45975 +++ b/drivers/mtd/nftlmount.c
45976 @@ -24,6 +24,7 @@
45977 #include <asm/errno.h>
45978 #include <linux/delay.h>
45979 #include <linux/slab.h>
45980 +#include <linux/sched.h>
45981 #include <linux/mtd/mtd.h>
45982 #include <linux/mtd/nand.h>
45983 #include <linux/mtd/nftl.h>
45984 diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
45985 index cf49c22..971b133 100644
45986 --- a/drivers/mtd/sm_ftl.c
45987 +++ b/drivers/mtd/sm_ftl.c
45988 @@ -56,7 +56,7 @@ static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
45989 #define SM_CIS_VENDOR_OFFSET 0x59
45990 static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
45991 {
45992 - struct attribute_group *attr_group;
45993 + attribute_group_no_const *attr_group;
45994 struct attribute **attributes;
45995 struct sm_sysfs_attribute *vendor_attribute;
45996 char *vendor;
45997 diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
45998 index f847e16..fc8dbe9 100644
45999 --- a/drivers/net/bonding/bond_netlink.c
46000 +++ b/drivers/net/bonding/bond_netlink.c
46001 @@ -542,7 +542,7 @@ nla_put_failure:
46002 return -EMSGSIZE;
46003 }
46004
46005 -struct rtnl_link_ops bond_link_ops __read_mostly = {
46006 +struct rtnl_link_ops bond_link_ops = {
46007 .kind = "bond",
46008 .priv_size = sizeof(struct bonding),
46009 .setup = bond_setup,
46010 diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
46011 index 9e7d95d..d447b88 100644
46012 --- a/drivers/net/can/Kconfig
46013 +++ b/drivers/net/can/Kconfig
46014 @@ -104,7 +104,7 @@ config CAN_JANZ_ICAN3
46015
46016 config CAN_FLEXCAN
46017 tristate "Support for Freescale FLEXCAN based chips"
46018 - depends on ARM || PPC
46019 + depends on (ARM && CPU_LITTLE_ENDIAN) || PPC
46020 ---help---
46021 Say Y here if you want to support for Freescale FlexCAN.
46022
46023 diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
46024 index 455d4c3..3353ee7 100644
46025 --- a/drivers/net/ethernet/8390/ax88796.c
46026 +++ b/drivers/net/ethernet/8390/ax88796.c
46027 @@ -889,9 +889,11 @@ static int ax_probe(struct platform_device *pdev)
46028 if (ax->plat->reg_offsets)
46029 ei_local->reg_offset = ax->plat->reg_offsets;
46030 else {
46031 + resource_size_t _mem_size = mem_size;
46032 + do_div(_mem_size, 0x18);
46033 ei_local->reg_offset = ax->reg_offsets;
46034 for (ret = 0; ret < 0x18; ret++)
46035 - ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
46036 + ax->reg_offsets[ret] = _mem_size * ret;
46037 }
46038
46039 if (!request_mem_region(mem->start, mem_size, pdev->name)) {
46040 diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
46041 index 7330681..7e9e463 100644
46042 --- a/drivers/net/ethernet/altera/altera_tse_main.c
46043 +++ b/drivers/net/ethernet/altera/altera_tse_main.c
46044 @@ -1182,7 +1182,7 @@ static int tse_shutdown(struct net_device *dev)
46045 return 0;
46046 }
46047
46048 -static struct net_device_ops altera_tse_netdev_ops = {
46049 +static net_device_ops_no_const altera_tse_netdev_ops __read_only = {
46050 .ndo_open = tse_open,
46051 .ndo_stop = tse_shutdown,
46052 .ndo_start_xmit = tse_start_xmit,
46053 @@ -1439,11 +1439,13 @@ static int altera_tse_probe(struct platform_device *pdev)
46054 ndev->netdev_ops = &altera_tse_netdev_ops;
46055 altera_tse_set_ethtool_ops(ndev);
46056
46057 + pax_open_kernel();
46058 altera_tse_netdev_ops.ndo_set_rx_mode = tse_set_rx_mode;
46059
46060 if (priv->hash_filter)
46061 altera_tse_netdev_ops.ndo_set_rx_mode =
46062 tse_set_rx_mode_hashfilter;
46063 + pax_close_kernel();
46064
46065 /* Scatter/gather IO is not supported,
46066 * so it is turned off
46067 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
46068 index 3448cc0..67b2dc4 100644
46069 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
46070 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
46071 @@ -1058,7 +1058,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
46072 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
46073 {
46074 /* RX_MODE controlling object */
46075 - bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
46076 + bnx2x_init_rx_mode_obj(bp);
46077
46078 /* multicast configuration controlling object */
46079 bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
46080 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
46081 index 31297266..944cf6e 100644
46082 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
46083 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
46084 @@ -2329,15 +2329,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
46085 return rc;
46086 }
46087
46088 -void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
46089 - struct bnx2x_rx_mode_obj *o)
46090 +void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
46091 {
46092 if (CHIP_IS_E1x(bp)) {
46093 - o->wait_comp = bnx2x_empty_rx_mode_wait;
46094 - o->config_rx_mode = bnx2x_set_rx_mode_e1x;
46095 + bp->rx_mode_obj.wait_comp = bnx2x_empty_rx_mode_wait;
46096 + bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
46097 } else {
46098 - o->wait_comp = bnx2x_wait_rx_mode_comp_e2;
46099 - o->config_rx_mode = bnx2x_set_rx_mode_e2;
46100 + bp->rx_mode_obj.wait_comp = bnx2x_wait_rx_mode_comp_e2;
46101 + bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
46102 }
46103 }
46104
46105 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
46106 index 80f6c79..fb7d12d 100644
46107 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
46108 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
46109 @@ -1340,8 +1340,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
46110
46111 /********************* RX MODE ****************/
46112
46113 -void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
46114 - struct bnx2x_rx_mode_obj *o);
46115 +void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
46116
46117 /**
46118 * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
46119 diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
46120 index 04321e5..b51cdc4 100644
46121 --- a/drivers/net/ethernet/broadcom/tg3.h
46122 +++ b/drivers/net/ethernet/broadcom/tg3.h
46123 @@ -150,6 +150,7 @@
46124 #define CHIPREV_ID_5750_A0 0x4000
46125 #define CHIPREV_ID_5750_A1 0x4001
46126 #define CHIPREV_ID_5750_A3 0x4003
46127 +#define CHIPREV_ID_5750_C1 0x4201
46128 #define CHIPREV_ID_5750_C2 0x4202
46129 #define CHIPREV_ID_5752_A0_HW 0x5000
46130 #define CHIPREV_ID_5752_A0 0x6000
46131 diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
46132 index 13f9636..228040f 100644
46133 --- a/drivers/net/ethernet/brocade/bna/bna_enet.c
46134 +++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
46135 @@ -1690,10 +1690,10 @@ bna_cb_ioceth_reset(void *arg)
46136 }
46137
46138 static struct bfa_ioc_cbfn bna_ioceth_cbfn = {
46139 - bna_cb_ioceth_enable,
46140 - bna_cb_ioceth_disable,
46141 - bna_cb_ioceth_hbfail,
46142 - bna_cb_ioceth_reset
46143 + .enable_cbfn = bna_cb_ioceth_enable,
46144 + .disable_cbfn = bna_cb_ioceth_disable,
46145 + .hbfail_cbfn = bna_cb_ioceth_hbfail,
46146 + .reset_cbfn = bna_cb_ioceth_reset
46147 };
46148
46149 static void bna_attr_init(struct bna_ioceth *ioceth)
46150 diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
46151 index 8cffcdf..aadf043 100644
46152 --- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
46153 +++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
46154 @@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
46155 */
46156 struct l2t_skb_cb {
46157 arp_failure_handler_func arp_failure_handler;
46158 -};
46159 +} __no_const;
46160
46161 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
46162
46163 diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
46164 index 24e16e3..bfe6ef2 100644
46165 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
46166 +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
46167 @@ -2139,7 +2139,7 @@ static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
46168
46169 int i;
46170 struct adapter *ap = netdev2adap(dev);
46171 - static const unsigned int *reg_ranges;
46172 + const unsigned int *reg_ranges;
46173 int arr_size = 0, buf_size = 0;
46174
46175 if (is_t4(ap->params.chip)) {
46176 diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
46177 index c05b66d..ed69872 100644
46178 --- a/drivers/net/ethernet/dec/tulip/de4x5.c
46179 +++ b/drivers/net/ethernet/dec/tulip/de4x5.c
46180 @@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
46181 for (i=0; i<ETH_ALEN; i++) {
46182 tmp.addr[i] = dev->dev_addr[i];
46183 }
46184 - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
46185 + if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
46186 break;
46187
46188 case DE4X5_SET_HWADDR: /* Set the hardware address */
46189 @@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
46190 spin_lock_irqsave(&lp->lock, flags);
46191 memcpy(&statbuf, &lp->pktStats, ioc->len);
46192 spin_unlock_irqrestore(&lp->lock, flags);
46193 - if (copy_to_user(ioc->data, &statbuf, ioc->len))
46194 + if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
46195 return -EFAULT;
46196 break;
46197 }
46198 diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
46199 index dc19bc5..f2d4548 100644
46200 --- a/drivers/net/ethernet/emulex/benet/be_main.c
46201 +++ b/drivers/net/ethernet/emulex/benet/be_main.c
46202 @@ -535,7 +535,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
46203
46204 if (wrapped)
46205 newacc += 65536;
46206 - ACCESS_ONCE(*acc) = newacc;
46207 + ACCESS_ONCE_RW(*acc) = newacc;
46208 }
46209
46210 static void populate_erx_stats(struct be_adapter *adapter,
46211 diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
46212 index 68069ea..c4484f6 100644
46213 --- a/drivers/net/ethernet/faraday/ftgmac100.c
46214 +++ b/drivers/net/ethernet/faraday/ftgmac100.c
46215 @@ -30,6 +30,8 @@
46216 #include <linux/netdevice.h>
46217 #include <linux/phy.h>
46218 #include <linux/platform_device.h>
46219 +#include <linux/interrupt.h>
46220 +#include <linux/irqreturn.h>
46221 #include <net/ip.h>
46222
46223 #include "ftgmac100.h"
46224 diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
46225 index 8be5b40..081bc1b 100644
46226 --- a/drivers/net/ethernet/faraday/ftmac100.c
46227 +++ b/drivers/net/ethernet/faraday/ftmac100.c
46228 @@ -31,6 +31,8 @@
46229 #include <linux/module.h>
46230 #include <linux/netdevice.h>
46231 #include <linux/platform_device.h>
46232 +#include <linux/interrupt.h>
46233 +#include <linux/irqreturn.h>
46234
46235 #include "ftmac100.h"
46236
46237 diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
46238 index e61e637..9117795 100644
46239 --- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
46240 +++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
46241 @@ -436,7 +436,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
46242 wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
46243
46244 /* Update the base adjustement value. */
46245 - ACCESS_ONCE(pf->ptp_base_adj) = incval;
46246 + ACCESS_ONCE_RW(pf->ptp_base_adj) = incval;
46247 smp_mb(); /* Force the above update. */
46248 }
46249
46250 diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
46251 index 8902ae6..e7bcdce 100644
46252 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
46253 +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
46254 @@ -771,7 +771,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
46255 }
46256
46257 /* update the base incval used to calculate frequency adjustment */
46258 - ACCESS_ONCE(adapter->base_incval) = incval;
46259 + ACCESS_ONCE_RW(adapter->base_incval) = incval;
46260 smp_mb();
46261
46262 /* need lock to prevent incorrect read while modifying cyclecounter */
46263 diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
46264 index 089b713..28d87ae 100644
46265 --- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
46266 +++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
46267 @@ -3461,7 +3461,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
46268 struct __vxge_hw_fifo *fifo;
46269 struct vxge_hw_fifo_config *config;
46270 u32 txdl_size, txdl_per_memblock;
46271 - struct vxge_hw_mempool_cbs fifo_mp_callback;
46272 + static struct vxge_hw_mempool_cbs fifo_mp_callback = {
46273 + .item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
46274 + };
46275 +
46276 struct __vxge_hw_virtualpath *vpath;
46277
46278 if ((vp == NULL) || (attr == NULL)) {
46279 @@ -3544,8 +3547,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
46280 goto exit;
46281 }
46282
46283 - fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
46284 -
46285 fifo->mempool =
46286 __vxge_hw_mempool_create(vpath->hldev,
46287 fifo->config->memblock_size,
46288 diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
46289 index ba20c72..f30c0fe 100644
46290 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
46291 +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
46292 @@ -2176,7 +2176,9 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
46293 max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
46294 } else if (ret == QLC_83XX_DEFAULT_OPMODE) {
46295 ahw->nic_mode = QLCNIC_DEFAULT_MODE;
46296 - adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
46297 + pax_open_kernel();
46298 + *(void **)&adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
46299 + pax_close_kernel();
46300 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
46301 max_sds_rings = QLCNIC_MAX_SDS_RINGS;
46302 max_tx_rings = QLCNIC_MAX_TX_RINGS;
46303 diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
46304 index be7d7a6..a8983f8 100644
46305 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
46306 +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
46307 @@ -207,17 +207,23 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
46308 case QLCNIC_NON_PRIV_FUNC:
46309 ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
46310 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
46311 - nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
46312 + pax_open_kernel();
46313 + *(void **)&nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
46314 + pax_close_kernel();
46315 break;
46316 case QLCNIC_PRIV_FUNC:
46317 ahw->op_mode = QLCNIC_PRIV_FUNC;
46318 ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
46319 - nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
46320 + pax_open_kernel();
46321 + *(void **)&nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
46322 + pax_close_kernel();
46323 break;
46324 case QLCNIC_MGMT_FUNC:
46325 ahw->op_mode = QLCNIC_MGMT_FUNC;
46326 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
46327 - nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
46328 + pax_open_kernel();
46329 + *(void **)&nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
46330 + pax_close_kernel();
46331 break;
46332 default:
46333 dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
46334 diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
46335 index 37b979b..50f5b95 100644
46336 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
46337 +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
46338 @@ -1217,7 +1217,7 @@ flash_temp:
46339 int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
46340 {
46341 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
46342 - static const struct qlcnic_dump_operations *fw_dump_ops;
46343 + const struct qlcnic_dump_operations *fw_dump_ops;
46344 struct qlcnic_83xx_dump_template_hdr *hdr_83xx;
46345 u32 entry_offset, dump, no_entries, buf_offset = 0;
46346 int i, k, ops_cnt, ops_index, dump_size = 0;
46347 diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
46348 index aa1c079..2b1a3e8 100644
46349 --- a/drivers/net/ethernet/realtek/r8169.c
46350 +++ b/drivers/net/ethernet/realtek/r8169.c
46351 @@ -758,22 +758,22 @@ struct rtl8169_private {
46352 struct mdio_ops {
46353 void (*write)(struct rtl8169_private *, int, int);
46354 int (*read)(struct rtl8169_private *, int);
46355 - } mdio_ops;
46356 + } __no_const mdio_ops;
46357
46358 struct pll_power_ops {
46359 void (*down)(struct rtl8169_private *);
46360 void (*up)(struct rtl8169_private *);
46361 - } pll_power_ops;
46362 + } __no_const pll_power_ops;
46363
46364 struct jumbo_ops {
46365 void (*enable)(struct rtl8169_private *);
46366 void (*disable)(struct rtl8169_private *);
46367 - } jumbo_ops;
46368 + } __no_const jumbo_ops;
46369
46370 struct csi_ops {
46371 void (*write)(struct rtl8169_private *, int, int);
46372 u32 (*read)(struct rtl8169_private *, int);
46373 - } csi_ops;
46374 + } __no_const csi_ops;
46375
46376 int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
46377 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
46378 diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
46379 index 6b861e3..204ac86 100644
46380 --- a/drivers/net/ethernet/sfc/ptp.c
46381 +++ b/drivers/net/ethernet/sfc/ptp.c
46382 @@ -822,7 +822,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
46383 ptp->start.dma_addr);
46384
46385 /* Clear flag that signals MC ready */
46386 - ACCESS_ONCE(*start) = 0;
46387 + ACCESS_ONCE_RW(*start) = 0;
46388 rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
46389 MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
46390 EFX_BUG_ON_PARANOID(rc);
46391 diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
46392 index 50617c5..b13724c 100644
46393 --- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
46394 +++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
46395 @@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
46396
46397 writel(value, ioaddr + MMC_CNTRL);
46398
46399 - pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
46400 - MMC_CNTRL, value);
46401 +// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
46402 +// MMC_CNTRL, value);
46403 }
46404
46405 /* To mask all all interrupts.*/
46406 diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
46407 index d18f711d..5755800 100644
46408 --- a/drivers/net/hyperv/hyperv_net.h
46409 +++ b/drivers/net/hyperv/hyperv_net.h
46410 @@ -101,7 +101,7 @@ struct rndis_device {
46411
46412 enum rndis_device_state state;
46413 bool link_state;
46414 - atomic_t new_req_id;
46415 + atomic_unchecked_t new_req_id;
46416
46417 spinlock_t request_lock;
46418 struct list_head req_list;
46419 diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
46420 index 143a98c..d54fbaa 100644
46421 --- a/drivers/net/hyperv/rndis_filter.c
46422 +++ b/drivers/net/hyperv/rndis_filter.c
46423 @@ -100,7 +100,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
46424 * template
46425 */
46426 set = &rndis_msg->msg.set_req;
46427 - set->req_id = atomic_inc_return(&dev->new_req_id);
46428 + set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
46429
46430 /* Add to the request list */
46431 spin_lock_irqsave(&dev->request_lock, flags);
46432 @@ -834,7 +834,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
46433
46434 /* Setup the rndis set */
46435 halt = &request->request_msg.msg.halt_req;
46436 - halt->req_id = atomic_inc_return(&dev->new_req_id);
46437 + halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
46438
46439 /* Ignore return since this msg is optional. */
46440 rndis_filter_send_request(dev, request);
46441 diff --git a/drivers/net/ieee802154/fakehard.c b/drivers/net/ieee802154/fakehard.c
46442 index 78f18be..1d19c62 100644
46443 --- a/drivers/net/ieee802154/fakehard.c
46444 +++ b/drivers/net/ieee802154/fakehard.c
46445 @@ -364,7 +364,7 @@ static int ieee802154fake_probe(struct platform_device *pdev)
46446 phy->transmit_power = 0xbf;
46447
46448 dev->netdev_ops = &fake_ops;
46449 - dev->ml_priv = &fake_mlme;
46450 + dev->ml_priv = (void *)&fake_mlme;
46451
46452 priv = netdev_priv(dev);
46453 priv->phy = phy;
46454 diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
46455 index 7eec598..90b8428 100644
46456 --- a/drivers/net/macvlan.c
46457 +++ b/drivers/net/macvlan.c
46458 @@ -984,13 +984,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
46459 int macvlan_link_register(struct rtnl_link_ops *ops)
46460 {
46461 /* common fields */
46462 - ops->priv_size = sizeof(struct macvlan_dev);
46463 - ops->validate = macvlan_validate;
46464 - ops->maxtype = IFLA_MACVLAN_MAX;
46465 - ops->policy = macvlan_policy;
46466 - ops->changelink = macvlan_changelink;
46467 - ops->get_size = macvlan_get_size;
46468 - ops->fill_info = macvlan_fill_info;
46469 + pax_open_kernel();
46470 + *(size_t *)&ops->priv_size = sizeof(struct macvlan_dev);
46471 + *(void **)&ops->validate = macvlan_validate;
46472 + *(int *)&ops->maxtype = IFLA_MACVLAN_MAX;
46473 + *(const void **)&ops->policy = macvlan_policy;
46474 + *(void **)&ops->changelink = macvlan_changelink;
46475 + *(void **)&ops->get_size = macvlan_get_size;
46476 + *(void **)&ops->fill_info = macvlan_fill_info;
46477 + pax_close_kernel();
46478
46479 return rtnl_link_register(ops);
46480 };
46481 @@ -1044,7 +1046,7 @@ static int macvlan_device_event(struct notifier_block *unused,
46482 return NOTIFY_DONE;
46483 }
46484
46485 -static struct notifier_block macvlan_notifier_block __read_mostly = {
46486 +static struct notifier_block macvlan_notifier_block = {
46487 .notifier_call = macvlan_device_event,
46488 };
46489
46490 diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
46491 index 3381c4f..dea5fd5 100644
46492 --- a/drivers/net/macvtap.c
46493 +++ b/drivers/net/macvtap.c
46494 @@ -1020,7 +1020,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
46495 }
46496
46497 ret = 0;
46498 - if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
46499 + if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
46500 put_user(q->flags, &ifr->ifr_flags))
46501 ret = -EFAULT;
46502 macvtap_put_vlan(vlan);
46503 @@ -1190,7 +1190,7 @@ static int macvtap_device_event(struct notifier_block *unused,
46504 return NOTIFY_DONE;
46505 }
46506
46507 -static struct notifier_block macvtap_notifier_block __read_mostly = {
46508 +static struct notifier_block macvtap_notifier_block = {
46509 .notifier_call = macvtap_device_event,
46510 };
46511
46512 diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
46513 index e3923eb..2a0373b 100644
46514 --- a/drivers/net/ppp/ppp_generic.c
46515 +++ b/drivers/net/ppp/ppp_generic.c
46516 @@ -1012,7 +1012,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
46517 void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
46518 struct ppp_stats stats;
46519 struct ppp_comp_stats cstats;
46520 - char *vers;
46521
46522 switch (cmd) {
46523 case SIOCGPPPSTATS:
46524 @@ -1034,8 +1033,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
46525 break;
46526
46527 case SIOCGPPPVER:
46528 - vers = PPP_VERSION;
46529 - if (copy_to_user(addr, vers, strlen(vers) + 1))
46530 + if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
46531 break;
46532 err = 0;
46533 break;
46534 diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
46535 index 1252d9c..80e660b 100644
46536 --- a/drivers/net/slip/slhc.c
46537 +++ b/drivers/net/slip/slhc.c
46538 @@ -488,7 +488,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
46539 register struct tcphdr *thp;
46540 register struct iphdr *ip;
46541 register struct cstate *cs;
46542 - int len, hdrlen;
46543 + long len, hdrlen;
46544 unsigned char *cp = icp;
46545
46546 /* We've got a compressed packet; read the change byte */
46547 diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
46548 index ce4989b..b40b328 100644
46549 --- a/drivers/net/team/team.c
46550 +++ b/drivers/net/team/team.c
46551 @@ -2868,7 +2868,7 @@ static int team_device_event(struct notifier_block *unused,
46552 return NOTIFY_DONE;
46553 }
46554
46555 -static struct notifier_block team_notifier_block __read_mostly = {
46556 +static struct notifier_block team_notifier_block = {
46557 .notifier_call = team_device_event,
46558 };
46559
46560 diff --git a/drivers/net/tun.c b/drivers/net/tun.c
46561 index ee328ba..c4a0041 100644
46562 --- a/drivers/net/tun.c
46563 +++ b/drivers/net/tun.c
46564 @@ -1876,7 +1876,7 @@ unlock:
46565 }
46566
46567 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
46568 - unsigned long arg, int ifreq_len)
46569 + unsigned long arg, size_t ifreq_len)
46570 {
46571 struct tun_file *tfile = file->private_data;
46572 struct tun_struct *tun;
46573 @@ -1889,6 +1889,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
46574 unsigned int ifindex;
46575 int ret;
46576
46577 + if (ifreq_len > sizeof ifr)
46578 + return -EFAULT;
46579 +
46580 if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
46581 if (copy_from_user(&ifr, argp, ifreq_len))
46582 return -EFAULT;
46583 diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
46584 index 660bd5e..ac59452 100644
46585 --- a/drivers/net/usb/hso.c
46586 +++ b/drivers/net/usb/hso.c
46587 @@ -71,7 +71,7 @@
46588 #include <asm/byteorder.h>
46589 #include <linux/serial_core.h>
46590 #include <linux/serial.h>
46591 -
46592 +#include <asm/local.h>
46593
46594 #define MOD_AUTHOR "Option Wireless"
46595 #define MOD_DESCRIPTION "USB High Speed Option driver"
46596 @@ -1179,7 +1179,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
46597 struct urb *urb;
46598
46599 urb = serial->rx_urb[0];
46600 - if (serial->port.count > 0) {
46601 + if (atomic_read(&serial->port.count) > 0) {
46602 count = put_rxbuf_data(urb, serial);
46603 if (count == -1)
46604 return;
46605 @@ -1217,7 +1217,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
46606 DUMP1(urb->transfer_buffer, urb->actual_length);
46607
46608 /* Anyone listening? */
46609 - if (serial->port.count == 0)
46610 + if (atomic_read(&serial->port.count) == 0)
46611 return;
46612
46613 if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
46614 @@ -1287,8 +1287,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
46615 tty_port_tty_set(&serial->port, tty);
46616
46617 /* check for port already opened, if not set the termios */
46618 - serial->port.count++;
46619 - if (serial->port.count == 1) {
46620 + if (atomic_inc_return(&serial->port.count) == 1) {
46621 serial->rx_state = RX_IDLE;
46622 /* Force default termio settings */
46623 _hso_serial_set_termios(tty, NULL);
46624 @@ -1300,7 +1299,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
46625 result = hso_start_serial_device(serial->parent, GFP_KERNEL);
46626 if (result) {
46627 hso_stop_serial_device(serial->parent);
46628 - serial->port.count--;
46629 + atomic_dec(&serial->port.count);
46630 kref_put(&serial->parent->ref, hso_serial_ref_free);
46631 }
46632 } else {
46633 @@ -1337,10 +1336,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
46634
46635 /* reset the rts and dtr */
46636 /* do the actual close */
46637 - serial->port.count--;
46638 + atomic_dec(&serial->port.count);
46639
46640 - if (serial->port.count <= 0) {
46641 - serial->port.count = 0;
46642 + if (atomic_read(&serial->port.count) <= 0) {
46643 + atomic_set(&serial->port.count, 0);
46644 tty_port_tty_set(&serial->port, NULL);
46645 if (!usb_gone)
46646 hso_stop_serial_device(serial->parent);
46647 @@ -1416,7 +1415,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
46648
46649 /* the actual setup */
46650 spin_lock_irqsave(&serial->serial_lock, flags);
46651 - if (serial->port.count)
46652 + if (atomic_read(&serial->port.count))
46653 _hso_serial_set_termios(tty, old);
46654 else
46655 tty->termios = *old;
46656 @@ -1885,7 +1884,7 @@ static void intr_callback(struct urb *urb)
46657 D1("Pending read interrupt on port %d\n", i);
46658 spin_lock(&serial->serial_lock);
46659 if (serial->rx_state == RX_IDLE &&
46660 - serial->port.count > 0) {
46661 + atomic_read(&serial->port.count) > 0) {
46662 /* Setup and send a ctrl req read on
46663 * port i */
46664 if (!serial->rx_urb_filled[0]) {
46665 @@ -3061,7 +3060,7 @@ static int hso_resume(struct usb_interface *iface)
46666 /* Start all serial ports */
46667 for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
46668 if (serial_table[i] && (serial_table[i]->interface == iface)) {
46669 - if (dev2ser(serial_table[i])->port.count) {
46670 + if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
46671 result =
46672 hso_start_serial_device(serial_table[i], GFP_NOIO);
46673 hso_kick_transmit(dev2ser(serial_table[i]));
46674 diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
46675 index 3fbfb08..2c16265 100644
46676 --- a/drivers/net/usb/r8152.c
46677 +++ b/drivers/net/usb/r8152.c
46678 @@ -567,7 +567,7 @@ struct r8152 {
46679 void (*up)(struct r8152 *);
46680 void (*down)(struct r8152 *);
46681 void (*unload)(struct r8152 *);
46682 - } rtl_ops;
46683 + } __no_const rtl_ops;
46684
46685 int intr_interval;
46686 u32 saved_wolopts;
46687 diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
46688 index a2515887..6d13233 100644
46689 --- a/drivers/net/usb/sierra_net.c
46690 +++ b/drivers/net/usb/sierra_net.c
46691 @@ -51,7 +51,7 @@ static const char driver_name[] = "sierra_net";
46692 /* atomic counter partially included in MAC address to make sure 2 devices
46693 * do not end up with the same MAC - concept breaks in case of > 255 ifaces
46694 */
46695 -static atomic_t iface_counter = ATOMIC_INIT(0);
46696 +static atomic_unchecked_t iface_counter = ATOMIC_INIT(0);
46697
46698 /*
46699 * SYNC Timer Delay definition used to set the expiry time
46700 @@ -697,7 +697,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
46701 dev->net->netdev_ops = &sierra_net_device_ops;
46702
46703 /* change MAC addr to include, ifacenum, and to be unique */
46704 - dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
46705 + dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return_unchecked(&iface_counter);
46706 dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
46707
46708 /* we will have to manufacture ethernet headers, prepare template */
46709 diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
46710 index 8a852b5..668a4b6 100644
46711 --- a/drivers/net/virtio_net.c
46712 +++ b/drivers/net/virtio_net.c
46713 @@ -47,7 +47,7 @@ module_param(gso, bool, 0444);
46714 #define RECEIVE_AVG_WEIGHT 64
46715
46716 /* Minimum alignment for mergeable packet buffers. */
46717 -#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
46718 +#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256UL)
46719
46720 #define VIRTNET_DRIVER_VERSION "1.0.0"
46721
46722 diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
46723 index 77dcf92..549924a 100644
46724 --- a/drivers/net/vxlan.c
46725 +++ b/drivers/net/vxlan.c
46726 @@ -2839,7 +2839,7 @@ nla_put_failure:
46727 return -EMSGSIZE;
46728 }
46729
46730 -static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
46731 +static struct rtnl_link_ops vxlan_link_ops = {
46732 .kind = "vxlan",
46733 .maxtype = IFLA_VXLAN_MAX,
46734 .policy = vxlan_policy,
46735 @@ -2886,7 +2886,7 @@ static int vxlan_lowerdev_event(struct notifier_block *unused,
46736 return NOTIFY_DONE;
46737 }
46738
46739 -static struct notifier_block vxlan_notifier_block __read_mostly = {
46740 +static struct notifier_block vxlan_notifier_block = {
46741 .notifier_call = vxlan_lowerdev_event,
46742 };
46743
46744 diff --git a/drivers/net/wan/lmc/lmc_media.c b/drivers/net/wan/lmc/lmc_media.c
46745 index 5920c99..ff2e4a5 100644
46746 --- a/drivers/net/wan/lmc/lmc_media.c
46747 +++ b/drivers/net/wan/lmc/lmc_media.c
46748 @@ -95,62 +95,63 @@ static inline void write_av9110_bit (lmc_softc_t *, int);
46749 static void write_av9110(lmc_softc_t *, u32, u32, u32, u32, u32);
46750
46751 lmc_media_t lmc_ds3_media = {
46752 - lmc_ds3_init, /* special media init stuff */
46753 - lmc_ds3_default, /* reset to default state */
46754 - lmc_ds3_set_status, /* reset status to state provided */
46755 - lmc_dummy_set_1, /* set clock source */
46756 - lmc_dummy_set2_1, /* set line speed */
46757 - lmc_ds3_set_100ft, /* set cable length */
46758 - lmc_ds3_set_scram, /* set scrambler */
46759 - lmc_ds3_get_link_status, /* get link status */
46760 - lmc_dummy_set_1, /* set link status */
46761 - lmc_ds3_set_crc_length, /* set CRC length */
46762 - lmc_dummy_set_1, /* set T1 or E1 circuit type */
46763 - lmc_ds3_watchdog
46764 + .init = lmc_ds3_init, /* special media init stuff */
46765 + .defaults = lmc_ds3_default, /* reset to default state */
46766 + .set_status = lmc_ds3_set_status, /* reset status to state provided */
46767 + .set_clock_source = lmc_dummy_set_1, /* set clock source */
46768 + .set_speed = lmc_dummy_set2_1, /* set line speed */
46769 + .set_cable_length = lmc_ds3_set_100ft, /* set cable length */
46770 + .set_scrambler = lmc_ds3_set_scram, /* set scrambler */
46771 + .get_link_status = lmc_ds3_get_link_status, /* get link status */
46772 + .set_link_status = lmc_dummy_set_1, /* set link status */
46773 + .set_crc_length = lmc_ds3_set_crc_length, /* set CRC length */
46774 + .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
46775 + .watchdog = lmc_ds3_watchdog
46776 };
46777
46778 lmc_media_t lmc_hssi_media = {
46779 - lmc_hssi_init, /* special media init stuff */
46780 - lmc_hssi_default, /* reset to default state */
46781 - lmc_hssi_set_status, /* reset status to state provided */
46782 - lmc_hssi_set_clock, /* set clock source */
46783 - lmc_dummy_set2_1, /* set line speed */
46784 - lmc_dummy_set_1, /* set cable length */
46785 - lmc_dummy_set_1, /* set scrambler */
46786 - lmc_hssi_get_link_status, /* get link status */
46787 - lmc_hssi_set_link_status, /* set link status */
46788 - lmc_hssi_set_crc_length, /* set CRC length */
46789 - lmc_dummy_set_1, /* set T1 or E1 circuit type */
46790 - lmc_hssi_watchdog
46791 + .init = lmc_hssi_init, /* special media init stuff */
46792 + .defaults = lmc_hssi_default, /* reset to default state */
46793 + .set_status = lmc_hssi_set_status, /* reset status to state provided */
46794 + .set_clock_source = lmc_hssi_set_clock, /* set clock source */
46795 + .set_speed = lmc_dummy_set2_1, /* set line speed */
46796 + .set_cable_length = lmc_dummy_set_1, /* set cable length */
46797 + .set_scrambler = lmc_dummy_set_1, /* set scrambler */
46798 + .get_link_status = lmc_hssi_get_link_status, /* get link status */
46799 + .set_link_status = lmc_hssi_set_link_status, /* set link status */
46800 + .set_crc_length = lmc_hssi_set_crc_length, /* set CRC length */
46801 + .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
46802 + .watchdog = lmc_hssi_watchdog
46803 };
46804
46805 -lmc_media_t lmc_ssi_media = { lmc_ssi_init, /* special media init stuff */
46806 - lmc_ssi_default, /* reset to default state */
46807 - lmc_ssi_set_status, /* reset status to state provided */
46808 - lmc_ssi_set_clock, /* set clock source */
46809 - lmc_ssi_set_speed, /* set line speed */
46810 - lmc_dummy_set_1, /* set cable length */
46811 - lmc_dummy_set_1, /* set scrambler */
46812 - lmc_ssi_get_link_status, /* get link status */
46813 - lmc_ssi_set_link_status, /* set link status */
46814 - lmc_ssi_set_crc_length, /* set CRC length */
46815 - lmc_dummy_set_1, /* set T1 or E1 circuit type */
46816 - lmc_ssi_watchdog
46817 +lmc_media_t lmc_ssi_media = {
46818 + .init = lmc_ssi_init, /* special media init stuff */
46819 + .defaults = lmc_ssi_default, /* reset to default state */
46820 + .set_status = lmc_ssi_set_status, /* reset status to state provided */
46821 + .set_clock_source = lmc_ssi_set_clock, /* set clock source */
46822 + .set_speed = lmc_ssi_set_speed, /* set line speed */
46823 + .set_cable_length = lmc_dummy_set_1, /* set cable length */
46824 + .set_scrambler = lmc_dummy_set_1, /* set scrambler */
46825 + .get_link_status = lmc_ssi_get_link_status, /* get link status */
46826 + .set_link_status = lmc_ssi_set_link_status, /* set link status */
46827 + .set_crc_length = lmc_ssi_set_crc_length, /* set CRC length */
46828 + .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
46829 + .watchdog = lmc_ssi_watchdog
46830 };
46831
46832 lmc_media_t lmc_t1_media = {
46833 - lmc_t1_init, /* special media init stuff */
46834 - lmc_t1_default, /* reset to default state */
46835 - lmc_t1_set_status, /* reset status to state provided */
46836 - lmc_t1_set_clock, /* set clock source */
46837 - lmc_dummy_set2_1, /* set line speed */
46838 - lmc_dummy_set_1, /* set cable length */
46839 - lmc_dummy_set_1, /* set scrambler */
46840 - lmc_t1_get_link_status, /* get link status */
46841 - lmc_dummy_set_1, /* set link status */
46842 - lmc_t1_set_crc_length, /* set CRC length */
46843 - lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
46844 - lmc_t1_watchdog
46845 + .init = lmc_t1_init, /* special media init stuff */
46846 + .defaults = lmc_t1_default, /* reset to default state */
46847 + .set_status = lmc_t1_set_status, /* reset status to state provided */
46848 + .set_clock_source = lmc_t1_set_clock, /* set clock source */
46849 + .set_speed = lmc_dummy_set2_1, /* set line speed */
46850 + .set_cable_length = lmc_dummy_set_1, /* set cable length */
46851 + .set_scrambler = lmc_dummy_set_1, /* set scrambler */
46852 + .get_link_status = lmc_t1_get_link_status, /* get link status */
46853 + .set_link_status = lmc_dummy_set_1, /* set link status */
46854 + .set_crc_length = lmc_t1_set_crc_length, /* set CRC length */
46855 + .set_circuit_type = lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
46856 + .watchdog = lmc_t1_watchdog
46857 };
46858
46859 static void
46860 diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
46861 index feacc3b..5bac0de 100644
46862 --- a/drivers/net/wan/z85230.c
46863 +++ b/drivers/net/wan/z85230.c
46864 @@ -485,9 +485,9 @@ static void z8530_status(struct z8530_channel *chan)
46865
46866 struct z8530_irqhandler z8530_sync =
46867 {
46868 - z8530_rx,
46869 - z8530_tx,
46870 - z8530_status
46871 + .rx = z8530_rx,
46872 + .tx = z8530_tx,
46873 + .status = z8530_status
46874 };
46875
46876 EXPORT_SYMBOL(z8530_sync);
46877 @@ -605,15 +605,15 @@ static void z8530_dma_status(struct z8530_channel *chan)
46878 }
46879
46880 static struct z8530_irqhandler z8530_dma_sync = {
46881 - z8530_dma_rx,
46882 - z8530_dma_tx,
46883 - z8530_dma_status
46884 + .rx = z8530_dma_rx,
46885 + .tx = z8530_dma_tx,
46886 + .status = z8530_dma_status
46887 };
46888
46889 static struct z8530_irqhandler z8530_txdma_sync = {
46890 - z8530_rx,
46891 - z8530_dma_tx,
46892 - z8530_dma_status
46893 + .rx = z8530_rx,
46894 + .tx = z8530_dma_tx,
46895 + .status = z8530_dma_status
46896 };
46897
46898 /**
46899 @@ -680,9 +680,9 @@ static void z8530_status_clear(struct z8530_channel *chan)
46900
46901 struct z8530_irqhandler z8530_nop=
46902 {
46903 - z8530_rx_clear,
46904 - z8530_tx_clear,
46905 - z8530_status_clear
46906 + .rx = z8530_rx_clear,
46907 + .tx = z8530_tx_clear,
46908 + .status = z8530_status_clear
46909 };
46910
46911
46912 diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
46913 index 0b60295..b8bfa5b 100644
46914 --- a/drivers/net/wimax/i2400m/rx.c
46915 +++ b/drivers/net/wimax/i2400m/rx.c
46916 @@ -1359,7 +1359,7 @@ int i2400m_rx_setup(struct i2400m *i2400m)
46917 if (i2400m->rx_roq == NULL)
46918 goto error_roq_alloc;
46919
46920 - rd = kcalloc(I2400M_RO_CIN + 1, sizeof(*i2400m->rx_roq[0].log),
46921 + rd = kcalloc(sizeof(*i2400m->rx_roq[0].log), I2400M_RO_CIN + 1,
46922 GFP_KERNEL);
46923 if (rd == NULL) {
46924 result = -ENOMEM;
46925 diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
46926 index 64747d4..17c4cf3 100644
46927 --- a/drivers/net/wireless/airo.c
46928 +++ b/drivers/net/wireless/airo.c
46929 @@ -7846,7 +7846,7 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
46930 struct airo_info *ai = dev->ml_priv;
46931 int ridcode;
46932 int enabled;
46933 - static int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
46934 + int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
46935 unsigned char *iobuf;
46936
46937 /* Only super-user can write RIDs */
46938 diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
46939 index 99b3bfa..9559372 100644
46940 --- a/drivers/net/wireless/at76c50x-usb.c
46941 +++ b/drivers/net/wireless/at76c50x-usb.c
46942 @@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
46943 }
46944
46945 /* Convert timeout from the DFU status to jiffies */
46946 -static inline unsigned long at76_get_timeout(struct dfu_status *s)
46947 +static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
46948 {
46949 return msecs_to_jiffies((s->poll_timeout[2] << 16)
46950 | (s->poll_timeout[1] << 8)
46951 diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
46952 index 7f1bccd..ca2ffca 100644
46953 --- a/drivers/net/wireless/ath/ath10k/htc.c
46954 +++ b/drivers/net/wireless/ath/ath10k/htc.c
46955 @@ -840,7 +840,10 @@ void ath10k_htc_stop(struct ath10k_htc *htc)
46956 /* registered target arrival callback from the HIF layer */
46957 int ath10k_htc_init(struct ath10k *ar)
46958 {
46959 - struct ath10k_hif_cb htc_callbacks;
46960 + static struct ath10k_hif_cb htc_callbacks = {
46961 + .rx_completion = ath10k_htc_rx_completion_handler,
46962 + .tx_completion = ath10k_htc_tx_completion_handler,
46963 + };
46964 struct ath10k_htc_ep *ep = NULL;
46965 struct ath10k_htc *htc = &ar->htc;
46966
46967 @@ -850,8 +853,6 @@ int ath10k_htc_init(struct ath10k *ar)
46968 ath10k_htc_reset_endpoint_states(htc);
46969
46970 /* setup HIF layer callbacks */
46971 - htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
46972 - htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
46973 htc->ar = ar;
46974
46975 /* Get HIF default pipe for HTC message exchange */
46976 diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
46977 index 4716d33..a688310 100644
46978 --- a/drivers/net/wireless/ath/ath10k/htc.h
46979 +++ b/drivers/net/wireless/ath/ath10k/htc.h
46980 @@ -271,13 +271,13 @@ enum ath10k_htc_ep_id {
46981
46982 struct ath10k_htc_ops {
46983 void (*target_send_suspend_complete)(struct ath10k *ar);
46984 -};
46985 +} __no_const;
46986
46987 struct ath10k_htc_ep_ops {
46988 void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
46989 void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
46990 void (*ep_tx_credits)(struct ath10k *);
46991 -};
46992 +} __no_const;
46993
46994 /* service connection information */
46995 struct ath10k_htc_svc_conn_req {
46996 diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
46997 index 741b38d..b7ae41b 100644
46998 --- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
46999 +++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
47000 @@ -220,8 +220,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47001 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
47002 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
47003
47004 - ACCESS_ONCE(ads->ds_link) = i->link;
47005 - ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
47006 + ACCESS_ONCE_RW(ads->ds_link) = i->link;
47007 + ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
47008
47009 ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
47010 ctl6 = SM(i->keytype, AR_EncrType);
47011 @@ -235,26 +235,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47012
47013 if ((i->is_first || i->is_last) &&
47014 i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
47015 - ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
47016 + ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
47017 | set11nTries(i->rates, 1)
47018 | set11nTries(i->rates, 2)
47019 | set11nTries(i->rates, 3)
47020 | (i->dur_update ? AR_DurUpdateEna : 0)
47021 | SM(0, AR_BurstDur);
47022
47023 - ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
47024 + ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
47025 | set11nRate(i->rates, 1)
47026 | set11nRate(i->rates, 2)
47027 | set11nRate(i->rates, 3);
47028 } else {
47029 - ACCESS_ONCE(ads->ds_ctl2) = 0;
47030 - ACCESS_ONCE(ads->ds_ctl3) = 0;
47031 + ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
47032 + ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
47033 }
47034
47035 if (!i->is_first) {
47036 - ACCESS_ONCE(ads->ds_ctl0) = 0;
47037 - ACCESS_ONCE(ads->ds_ctl1) = ctl1;
47038 - ACCESS_ONCE(ads->ds_ctl6) = ctl6;
47039 + ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
47040 + ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
47041 + ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
47042 return;
47043 }
47044
47045 @@ -279,7 +279,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47046 break;
47047 }
47048
47049 - ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
47050 + ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
47051 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
47052 | SM(i->txpower, AR_XmitPower)
47053 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
47054 @@ -289,19 +289,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47055 | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
47056 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
47057
47058 - ACCESS_ONCE(ads->ds_ctl1) = ctl1;
47059 - ACCESS_ONCE(ads->ds_ctl6) = ctl6;
47060 + ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
47061 + ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
47062
47063 if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
47064 return;
47065
47066 - ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
47067 + ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
47068 | set11nPktDurRTSCTS(i->rates, 1);
47069
47070 - ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
47071 + ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
47072 | set11nPktDurRTSCTS(i->rates, 3);
47073
47074 - ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
47075 + ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
47076 | set11nRateFlags(i->rates, 1)
47077 | set11nRateFlags(i->rates, 2)
47078 | set11nRateFlags(i->rates, 3)
47079 diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
47080 index 729ffbf..49f50e3 100644
47081 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
47082 +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
47083 @@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47084 (i->qcu << AR_TxQcuNum_S) | desc_len;
47085
47086 checksum += val;
47087 - ACCESS_ONCE(ads->info) = val;
47088 + ACCESS_ONCE_RW(ads->info) = val;
47089
47090 checksum += i->link;
47091 - ACCESS_ONCE(ads->link) = i->link;
47092 + ACCESS_ONCE_RW(ads->link) = i->link;
47093
47094 checksum += i->buf_addr[0];
47095 - ACCESS_ONCE(ads->data0) = i->buf_addr[0];
47096 + ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
47097 checksum += i->buf_addr[1];
47098 - ACCESS_ONCE(ads->data1) = i->buf_addr[1];
47099 + ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
47100 checksum += i->buf_addr[2];
47101 - ACCESS_ONCE(ads->data2) = i->buf_addr[2];
47102 + ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
47103 checksum += i->buf_addr[3];
47104 - ACCESS_ONCE(ads->data3) = i->buf_addr[3];
47105 + ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
47106
47107 checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
47108 - ACCESS_ONCE(ads->ctl3) = val;
47109 + ACCESS_ONCE_RW(ads->ctl3) = val;
47110 checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
47111 - ACCESS_ONCE(ads->ctl5) = val;
47112 + ACCESS_ONCE_RW(ads->ctl5) = val;
47113 checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
47114 - ACCESS_ONCE(ads->ctl7) = val;
47115 + ACCESS_ONCE_RW(ads->ctl7) = val;
47116 checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
47117 - ACCESS_ONCE(ads->ctl9) = val;
47118 + ACCESS_ONCE_RW(ads->ctl9) = val;
47119
47120 checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
47121 - ACCESS_ONCE(ads->ctl10) = checksum;
47122 + ACCESS_ONCE_RW(ads->ctl10) = checksum;
47123
47124 if (i->is_first || i->is_last) {
47125 - ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
47126 + ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
47127 | set11nTries(i->rates, 1)
47128 | set11nTries(i->rates, 2)
47129 | set11nTries(i->rates, 3)
47130 | (i->dur_update ? AR_DurUpdateEna : 0)
47131 | SM(0, AR_BurstDur);
47132
47133 - ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
47134 + ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
47135 | set11nRate(i->rates, 1)
47136 | set11nRate(i->rates, 2)
47137 | set11nRate(i->rates, 3);
47138 } else {
47139 - ACCESS_ONCE(ads->ctl13) = 0;
47140 - ACCESS_ONCE(ads->ctl14) = 0;
47141 + ACCESS_ONCE_RW(ads->ctl13) = 0;
47142 + ACCESS_ONCE_RW(ads->ctl14) = 0;
47143 }
47144
47145 ads->ctl20 = 0;
47146 @@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47147
47148 ctl17 = SM(i->keytype, AR_EncrType);
47149 if (!i->is_first) {
47150 - ACCESS_ONCE(ads->ctl11) = 0;
47151 - ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
47152 - ACCESS_ONCE(ads->ctl15) = 0;
47153 - ACCESS_ONCE(ads->ctl16) = 0;
47154 - ACCESS_ONCE(ads->ctl17) = ctl17;
47155 - ACCESS_ONCE(ads->ctl18) = 0;
47156 - ACCESS_ONCE(ads->ctl19) = 0;
47157 + ACCESS_ONCE_RW(ads->ctl11) = 0;
47158 + ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
47159 + ACCESS_ONCE_RW(ads->ctl15) = 0;
47160 + ACCESS_ONCE_RW(ads->ctl16) = 0;
47161 + ACCESS_ONCE_RW(ads->ctl17) = ctl17;
47162 + ACCESS_ONCE_RW(ads->ctl18) = 0;
47163 + ACCESS_ONCE_RW(ads->ctl19) = 0;
47164 return;
47165 }
47166
47167 - ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
47168 + ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
47169 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
47170 | SM(i->txpower, AR_XmitPower)
47171 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
47172 @@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
47173 val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
47174 ctl12 |= SM(val, AR_PAPRDChainMask);
47175
47176 - ACCESS_ONCE(ads->ctl12) = ctl12;
47177 - ACCESS_ONCE(ads->ctl17) = ctl17;
47178 + ACCESS_ONCE_RW(ads->ctl12) = ctl12;
47179 + ACCESS_ONCE_RW(ads->ctl17) = ctl17;
47180
47181 - ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
47182 + ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
47183 | set11nPktDurRTSCTS(i->rates, 1);
47184
47185 - ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
47186 + ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
47187 | set11nPktDurRTSCTS(i->rates, 3);
47188
47189 - ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
47190 + ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
47191 | set11nRateFlags(i->rates, 1)
47192 | set11nRateFlags(i->rates, 2)
47193 | set11nRateFlags(i->rates, 3)
47194 | SM(i->rtscts_rate, AR_RTSCTSRate);
47195
47196 - ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
47197 + ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
47198 }
47199
47200 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
47201 diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
47202 index 0acd4b5..0591c91 100644
47203 --- a/drivers/net/wireless/ath/ath9k/hw.h
47204 +++ b/drivers/net/wireless/ath/ath9k/hw.h
47205 @@ -629,7 +629,7 @@ struct ath_hw_private_ops {
47206
47207 /* ANI */
47208 void (*ani_cache_ini_regs)(struct ath_hw *ah);
47209 -};
47210 +} __no_const;
47211
47212 /**
47213 * struct ath_spec_scan - parameters for Atheros spectral scan
47214 @@ -706,7 +706,7 @@ struct ath_hw_ops {
47215 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
47216 void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
47217 #endif
47218 -};
47219 +} __no_const;
47220
47221 struct ath_nf_limits {
47222 s16 max;
47223 diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
47224 index 92190da..f3a4c4c 100644
47225 --- a/drivers/net/wireless/b43/phy_lp.c
47226 +++ b/drivers/net/wireless/b43/phy_lp.c
47227 @@ -2514,7 +2514,7 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
47228 {
47229 struct ssb_bus *bus = dev->dev->sdev->bus;
47230
47231 - static const struct b206x_channel *chandata = NULL;
47232 + const struct b206x_channel *chandata = NULL;
47233 u32 crystal_freq = bus->chipco.pmu.crystalfreq * 1000;
47234 u32 freqref, vco_freq, val1, val2, val3, timeout, timeoutref, count;
47235 u16 old_comm15, scale;
47236 diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
47237 index dc1d20c..f7a4f06 100644
47238 --- a/drivers/net/wireless/iwlegacy/3945-mac.c
47239 +++ b/drivers/net/wireless/iwlegacy/3945-mac.c
47240 @@ -3633,7 +3633,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
47241 */
47242 if (il3945_mod_params.disable_hw_scan) {
47243 D_INFO("Disabling hw_scan\n");
47244 - il3945_mac_ops.hw_scan = NULL;
47245 + pax_open_kernel();
47246 + *(void **)&il3945_mac_ops.hw_scan = NULL;
47247 + pax_close_kernel();
47248 }
47249
47250 D_INFO("*** LOAD DRIVER ***\n");
47251 diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
47252 index d2fe259..0c4c682 100644
47253 --- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
47254 +++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
47255 @@ -188,7 +188,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
47256 {
47257 struct iwl_priv *priv = file->private_data;
47258 char buf[64];
47259 - int buf_size;
47260 + size_t buf_size;
47261 u32 offset, len;
47262
47263 memset(buf, 0, sizeof(buf));
47264 @@ -458,7 +458,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
47265 struct iwl_priv *priv = file->private_data;
47266
47267 char buf[8];
47268 - int buf_size;
47269 + size_t buf_size;
47270 u32 reset_flag;
47271
47272 memset(buf, 0, sizeof(buf));
47273 @@ -539,7 +539,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
47274 {
47275 struct iwl_priv *priv = file->private_data;
47276 char buf[8];
47277 - int buf_size;
47278 + size_t buf_size;
47279 int ht40;
47280
47281 memset(buf, 0, sizeof(buf));
47282 @@ -591,7 +591,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
47283 {
47284 struct iwl_priv *priv = file->private_data;
47285 char buf[8];
47286 - int buf_size;
47287 + size_t buf_size;
47288 int value;
47289
47290 memset(buf, 0, sizeof(buf));
47291 @@ -683,10 +683,10 @@ DEBUGFS_READ_FILE_OPS(temperature);
47292 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
47293 DEBUGFS_READ_FILE_OPS(current_sleep_command);
47294
47295 -static const char *fmt_value = " %-30s %10u\n";
47296 -static const char *fmt_hex = " %-30s 0x%02X\n";
47297 -static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
47298 -static const char *fmt_header =
47299 +static const char fmt_value[] = " %-30s %10u\n";
47300 +static const char fmt_hex[] = " %-30s 0x%02X\n";
47301 +static const char fmt_table[] = " %-30s %10u %10u %10u %10u\n";
47302 +static const char fmt_header[] =
47303 "%-32s current cumulative delta max\n";
47304
47305 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
47306 @@ -1856,7 +1856,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
47307 {
47308 struct iwl_priv *priv = file->private_data;
47309 char buf[8];
47310 - int buf_size;
47311 + size_t buf_size;
47312 int clear;
47313
47314 memset(buf, 0, sizeof(buf));
47315 @@ -1901,7 +1901,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
47316 {
47317 struct iwl_priv *priv = file->private_data;
47318 char buf[8];
47319 - int buf_size;
47320 + size_t buf_size;
47321 int trace;
47322
47323 memset(buf, 0, sizeof(buf));
47324 @@ -1972,7 +1972,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
47325 {
47326 struct iwl_priv *priv = file->private_data;
47327 char buf[8];
47328 - int buf_size;
47329 + size_t buf_size;
47330 int missed;
47331
47332 memset(buf, 0, sizeof(buf));
47333 @@ -2013,7 +2013,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
47334
47335 struct iwl_priv *priv = file->private_data;
47336 char buf[8];
47337 - int buf_size;
47338 + size_t buf_size;
47339 int plcp;
47340
47341 memset(buf, 0, sizeof(buf));
47342 @@ -2073,7 +2073,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
47343
47344 struct iwl_priv *priv = file->private_data;
47345 char buf[8];
47346 - int buf_size;
47347 + size_t buf_size;
47348 int flush;
47349
47350 memset(buf, 0, sizeof(buf));
47351 @@ -2163,7 +2163,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
47352
47353 struct iwl_priv *priv = file->private_data;
47354 char buf[8];
47355 - int buf_size;
47356 + size_t buf_size;
47357 int rts;
47358
47359 if (!priv->cfg->ht_params)
47360 @@ -2205,7 +2205,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
47361 {
47362 struct iwl_priv *priv = file->private_data;
47363 char buf[8];
47364 - int buf_size;
47365 + size_t buf_size;
47366
47367 memset(buf, 0, sizeof(buf));
47368 buf_size = min(count, sizeof(buf) - 1);
47369 @@ -2239,7 +2239,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
47370 struct iwl_priv *priv = file->private_data;
47371 u32 event_log_flag;
47372 char buf[8];
47373 - int buf_size;
47374 + size_t buf_size;
47375
47376 /* check that the interface is up */
47377 if (!iwl_is_ready(priv))
47378 @@ -2293,7 +2293,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
47379 struct iwl_priv *priv = file->private_data;
47380 char buf[8];
47381 u32 calib_disabled;
47382 - int buf_size;
47383 + size_t buf_size;
47384
47385 memset(buf, 0, sizeof(buf));
47386 buf_size = min(count, sizeof(buf) - 1);
47387 diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
47388 index 6a6df71..eb5c93a 100644
47389 --- a/drivers/net/wireless/iwlwifi/dvm/main.c
47390 +++ b/drivers/net/wireless/iwlwifi/dvm/main.c
47391 @@ -1127,7 +1127,7 @@ static void iwl_option_config(struct iwl_priv *priv)
47392 static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
47393 {
47394 struct iwl_nvm_data *data = priv->nvm_data;
47395 - char *debug_msg;
47396 + static const char debug_msg[] = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
47397
47398 if (data->sku_cap_11n_enable &&
47399 !priv->cfg->ht_params) {
47400 @@ -1141,7 +1141,6 @@ static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
47401 return -EINVAL;
47402 }
47403
47404 - debug_msg = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
47405 IWL_DEBUG_INFO(priv, debug_msg,
47406 data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled",
47407 data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled",
47408 diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
47409 index 295b24c..cb4f823 100644
47410 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c
47411 +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
47412 @@ -1558,7 +1558,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
47413 struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
47414
47415 char buf[8];
47416 - int buf_size;
47417 + size_t buf_size;
47418 u32 reset_flag;
47419
47420 memset(buf, 0, sizeof(buf));
47421 @@ -1579,7 +1579,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
47422 {
47423 struct iwl_trans *trans = file->private_data;
47424 char buf[8];
47425 - int buf_size;
47426 + size_t buf_size;
47427 int csr;
47428
47429 memset(buf, 0, sizeof(buf));
47430 diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
47431 index 9d7a52f..2729a99 100644
47432 --- a/drivers/net/wireless/mac80211_hwsim.c
47433 +++ b/drivers/net/wireless/mac80211_hwsim.c
47434 @@ -2570,20 +2570,20 @@ static int __init init_mac80211_hwsim(void)
47435 if (channels < 1)
47436 return -EINVAL;
47437
47438 - mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
47439 - mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
47440 - mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
47441 - mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
47442 - mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
47443 - mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
47444 - mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
47445 - mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
47446 - mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
47447 - mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
47448 - mac80211_hwsim_mchan_ops.assign_vif_chanctx =
47449 - mac80211_hwsim_assign_vif_chanctx;
47450 - mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
47451 - mac80211_hwsim_unassign_vif_chanctx;
47452 + pax_open_kernel();
47453 + memcpy((void *)&mac80211_hwsim_mchan_ops, &mac80211_hwsim_ops, sizeof mac80211_hwsim_mchan_ops);
47454 + *(void **)&mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
47455 + *(void **)&mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
47456 + *(void **)&mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
47457 + *(void **)&mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
47458 + *(void **)&mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
47459 + *(void **)&mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
47460 + *(void **)&mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
47461 + *(void **)&mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
47462 + *(void **)&mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
47463 + *(void **)&mac80211_hwsim_mchan_ops.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx;
47464 + *(void **)&mac80211_hwsim_mchan_ops.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx;
47465 + pax_close_kernel();
47466
47467 spin_lock_init(&hwsim_radio_lock);
47468 INIT_LIST_HEAD(&hwsim_radios);
47469 diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
47470 index 39d22a1..4ec8612 100644
47471 --- a/drivers/net/wireless/rndis_wlan.c
47472 +++ b/drivers/net/wireless/rndis_wlan.c
47473 @@ -1236,7 +1236,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
47474
47475 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
47476
47477 - if (rts_threshold < 0 || rts_threshold > 2347)
47478 + if (rts_threshold > 2347)
47479 rts_threshold = 2347;
47480
47481 tmp = cpu_to_le32(rts_threshold);
47482 diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
47483 index 5d45a1a..6f5f041 100644
47484 --- a/drivers/net/wireless/rt2x00/rt2x00.h
47485 +++ b/drivers/net/wireless/rt2x00/rt2x00.h
47486 @@ -375,7 +375,7 @@ struct rt2x00_intf {
47487 * for hardware which doesn't support hardware
47488 * sequence counting.
47489 */
47490 - atomic_t seqno;
47491 + atomic_unchecked_t seqno;
47492 };
47493
47494 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
47495 diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
47496 index 5642ccc..01f03eb 100644
47497 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c
47498 +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
47499 @@ -250,9 +250,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
47500 * sequence counter given by mac80211.
47501 */
47502 if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
47503 - seqno = atomic_add_return(0x10, &intf->seqno);
47504 + seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
47505 else
47506 - seqno = atomic_read(&intf->seqno);
47507 + seqno = atomic_read_unchecked(&intf->seqno);
47508
47509 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
47510 hdr->seq_ctrl |= cpu_to_le16(seqno);
47511 diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
47512 index b661f896..ddf7d2b 100644
47513 --- a/drivers/net/wireless/ti/wl1251/sdio.c
47514 +++ b/drivers/net/wireless/ti/wl1251/sdio.c
47515 @@ -282,13 +282,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
47516
47517 irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
47518
47519 - wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
47520 - wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
47521 + pax_open_kernel();
47522 + *(void **)&wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
47523 + *(void **)&wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
47524 + pax_close_kernel();
47525
47526 wl1251_info("using dedicated interrupt line");
47527 } else {
47528 - wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
47529 - wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
47530 + pax_open_kernel();
47531 + *(void **)&wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
47532 + *(void **)&wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
47533 + pax_close_kernel();
47534
47535 wl1251_info("using SDIO interrupt");
47536 }
47537 diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
47538 index d50dfac..0a6f5be3 100644
47539 --- a/drivers/net/wireless/ti/wl12xx/main.c
47540 +++ b/drivers/net/wireless/ti/wl12xx/main.c
47541 @@ -656,7 +656,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
47542 sizeof(wl->conf.mem));
47543
47544 /* read data preparation is only needed by wl127x */
47545 - wl->ops->prepare_read = wl127x_prepare_read;
47546 + pax_open_kernel();
47547 + *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
47548 + pax_close_kernel();
47549
47550 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
47551 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
47552 @@ -681,7 +683,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
47553 sizeof(wl->conf.mem));
47554
47555 /* read data preparation is only needed by wl127x */
47556 - wl->ops->prepare_read = wl127x_prepare_read;
47557 + pax_open_kernel();
47558 + *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
47559 + pax_close_kernel();
47560
47561 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
47562 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
47563 diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
47564 index de5b4fa..7996ec6 100644
47565 --- a/drivers/net/wireless/ti/wl18xx/main.c
47566 +++ b/drivers/net/wireless/ti/wl18xx/main.c
47567 @@ -1900,8 +1900,10 @@ static int wl18xx_setup(struct wl1271 *wl)
47568 }
47569
47570 if (!checksum_param) {
47571 - wl18xx_ops.set_rx_csum = NULL;
47572 - wl18xx_ops.init_vif = NULL;
47573 + pax_open_kernel();
47574 + *(void **)&wl18xx_ops.set_rx_csum = NULL;
47575 + *(void **)&wl18xx_ops.init_vif = NULL;
47576 + pax_close_kernel();
47577 }
47578
47579 /* Enable 11a Band only if we have 5G antennas */
47580 diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
47581 index a912dc0..a8225ba 100644
47582 --- a/drivers/net/wireless/zd1211rw/zd_usb.c
47583 +++ b/drivers/net/wireless/zd1211rw/zd_usb.c
47584 @@ -385,7 +385,7 @@ static inline void handle_regs_int(struct urb *urb)
47585 {
47586 struct zd_usb *usb = urb->context;
47587 struct zd_usb_interrupt *intr = &usb->intr;
47588 - int len;
47589 + unsigned int len;
47590 u16 int_num;
47591
47592 ZD_ASSERT(in_interrupt());
47593 diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
47594 index 683671a..4519fc2 100644
47595 --- a/drivers/nfc/nfcwilink.c
47596 +++ b/drivers/nfc/nfcwilink.c
47597 @@ -497,7 +497,7 @@ static struct nci_ops nfcwilink_ops = {
47598
47599 static int nfcwilink_probe(struct platform_device *pdev)
47600 {
47601 - static struct nfcwilink *drv;
47602 + struct nfcwilink *drv;
47603 int rc;
47604 __u32 protocols;
47605
47606 diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
47607 index d93b2b6..ae50401 100644
47608 --- a/drivers/oprofile/buffer_sync.c
47609 +++ b/drivers/oprofile/buffer_sync.c
47610 @@ -332,7 +332,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
47611 if (cookie == NO_COOKIE)
47612 offset = pc;
47613 if (cookie == INVALID_COOKIE) {
47614 - atomic_inc(&oprofile_stats.sample_lost_no_mapping);
47615 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
47616 offset = pc;
47617 }
47618 if (cookie != last_cookie) {
47619 @@ -376,14 +376,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
47620 /* add userspace sample */
47621
47622 if (!mm) {
47623 - atomic_inc(&oprofile_stats.sample_lost_no_mm);
47624 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
47625 return 0;
47626 }
47627
47628 cookie = lookup_dcookie(mm, s->eip, &offset);
47629
47630 if (cookie == INVALID_COOKIE) {
47631 - atomic_inc(&oprofile_stats.sample_lost_no_mapping);
47632 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
47633 return 0;
47634 }
47635
47636 @@ -552,7 +552,7 @@ void sync_buffer(int cpu)
47637 /* ignore backtraces if failed to add a sample */
47638 if (state == sb_bt_start) {
47639 state = sb_bt_ignore;
47640 - atomic_inc(&oprofile_stats.bt_lost_no_mapping);
47641 + atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
47642 }
47643 }
47644 release_mm(mm);
47645 diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
47646 index c0cc4e7..44d4e54 100644
47647 --- a/drivers/oprofile/event_buffer.c
47648 +++ b/drivers/oprofile/event_buffer.c
47649 @@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
47650 }
47651
47652 if (buffer_pos == buffer_size) {
47653 - atomic_inc(&oprofile_stats.event_lost_overflow);
47654 + atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
47655 return;
47656 }
47657
47658 diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
47659 index ed2c3ec..deda85a 100644
47660 --- a/drivers/oprofile/oprof.c
47661 +++ b/drivers/oprofile/oprof.c
47662 @@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
47663 if (oprofile_ops.switch_events())
47664 return;
47665
47666 - atomic_inc(&oprofile_stats.multiplex_counter);
47667 + atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
47668 start_switch_worker();
47669 }
47670
47671 diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
47672 index ee2cfce..7f8f699 100644
47673 --- a/drivers/oprofile/oprofile_files.c
47674 +++ b/drivers/oprofile/oprofile_files.c
47675 @@ -27,7 +27,7 @@ unsigned long oprofile_time_slice;
47676
47677 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
47678
47679 -static ssize_t timeout_read(struct file *file, char __user *buf,
47680 +static ssize_t __intentional_overflow(-1) timeout_read(struct file *file, char __user *buf,
47681 size_t count, loff_t *offset)
47682 {
47683 return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
47684 diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
47685 index 59659ce..6c860a0 100644
47686 --- a/drivers/oprofile/oprofile_stats.c
47687 +++ b/drivers/oprofile/oprofile_stats.c
47688 @@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
47689 cpu_buf->sample_invalid_eip = 0;
47690 }
47691
47692 - atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
47693 - atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
47694 - atomic_set(&oprofile_stats.event_lost_overflow, 0);
47695 - atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
47696 - atomic_set(&oprofile_stats.multiplex_counter, 0);
47697 + atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
47698 + atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
47699 + atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
47700 + atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
47701 + atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
47702 }
47703
47704
47705 diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
47706 index 1fc622b..8c48fc3 100644
47707 --- a/drivers/oprofile/oprofile_stats.h
47708 +++ b/drivers/oprofile/oprofile_stats.h
47709 @@ -13,11 +13,11 @@
47710 #include <linux/atomic.h>
47711
47712 struct oprofile_stat_struct {
47713 - atomic_t sample_lost_no_mm;
47714 - atomic_t sample_lost_no_mapping;
47715 - atomic_t bt_lost_no_mapping;
47716 - atomic_t event_lost_overflow;
47717 - atomic_t multiplex_counter;
47718 + atomic_unchecked_t sample_lost_no_mm;
47719 + atomic_unchecked_t sample_lost_no_mapping;
47720 + atomic_unchecked_t bt_lost_no_mapping;
47721 + atomic_unchecked_t event_lost_overflow;
47722 + atomic_unchecked_t multiplex_counter;
47723 };
47724
47725 extern struct oprofile_stat_struct oprofile_stats;
47726 diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
47727 index 3f49345..c750d0b 100644
47728 --- a/drivers/oprofile/oprofilefs.c
47729 +++ b/drivers/oprofile/oprofilefs.c
47730 @@ -176,8 +176,8 @@ int oprofilefs_create_ro_ulong(struct dentry *root,
47731
47732 static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
47733 {
47734 - atomic_t *val = file->private_data;
47735 - return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
47736 + atomic_unchecked_t *val = file->private_data;
47737 + return oprofilefs_ulong_to_user(atomic_read_unchecked(val), buf, count, offset);
47738 }
47739
47740
47741 @@ -189,7 +189,7 @@ static const struct file_operations atomic_ro_fops = {
47742
47743
47744 int oprofilefs_create_ro_atomic(struct dentry *root,
47745 - char const *name, atomic_t *val)
47746 + char const *name, atomic_unchecked_t *val)
47747 {
47748 return __oprofilefs_create_file(root, name,
47749 &atomic_ro_fops, 0444, val);
47750 diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
47751 index 61be1d9..dec05d7 100644
47752 --- a/drivers/oprofile/timer_int.c
47753 +++ b/drivers/oprofile/timer_int.c
47754 @@ -93,7 +93,7 @@ static int oprofile_cpu_notify(struct notifier_block *self,
47755 return NOTIFY_OK;
47756 }
47757
47758 -static struct notifier_block __refdata oprofile_cpu_notifier = {
47759 +static struct notifier_block oprofile_cpu_notifier = {
47760 .notifier_call = oprofile_cpu_notify,
47761 };
47762
47763 diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
47764 index 92ed045..62d39bd7 100644
47765 --- a/drivers/parport/procfs.c
47766 +++ b/drivers/parport/procfs.c
47767 @@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write,
47768
47769 *ppos += len;
47770
47771 - return copy_to_user(result, buffer, len) ? -EFAULT : 0;
47772 + return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
47773 }
47774
47775 #ifdef CONFIG_PARPORT_1284
47776 @@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write,
47777
47778 *ppos += len;
47779
47780 - return copy_to_user (result, buffer, len) ? -EFAULT : 0;
47781 + return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
47782 }
47783 #endif /* IEEE1284.3 support. */
47784
47785 diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
47786 index 8dcccff..35d701d 100644
47787 --- a/drivers/pci/hotplug/acpiphp_ibm.c
47788 +++ b/drivers/pci/hotplug/acpiphp_ibm.c
47789 @@ -452,7 +452,9 @@ static int __init ibm_acpiphp_init(void)
47790 goto init_cleanup;
47791 }
47792
47793 - ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
47794 + pax_open_kernel();
47795 + *(size_t *)&ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
47796 + pax_close_kernel();
47797 retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
47798
47799 return retval;
47800 diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
47801 index 7536eef..52dc8fa 100644
47802 --- a/drivers/pci/hotplug/cpcihp_generic.c
47803 +++ b/drivers/pci/hotplug/cpcihp_generic.c
47804 @@ -73,7 +73,6 @@ static u16 port;
47805 static unsigned int enum_bit;
47806 static u8 enum_mask;
47807
47808 -static struct cpci_hp_controller_ops generic_hpc_ops;
47809 static struct cpci_hp_controller generic_hpc;
47810
47811 static int __init validate_parameters(void)
47812 @@ -139,6 +138,10 @@ static int query_enum(void)
47813 return ((value & enum_mask) == enum_mask);
47814 }
47815
47816 +static struct cpci_hp_controller_ops generic_hpc_ops = {
47817 + .query_enum = query_enum,
47818 +};
47819 +
47820 static int __init cpcihp_generic_init(void)
47821 {
47822 int status;
47823 @@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
47824 pci_dev_put(dev);
47825
47826 memset(&generic_hpc, 0, sizeof (struct cpci_hp_controller));
47827 - generic_hpc_ops.query_enum = query_enum;
47828 generic_hpc.ops = &generic_hpc_ops;
47829
47830 status = cpci_hp_register_controller(&generic_hpc);
47831 diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
47832 index e8c4a7c..7046f5c 100644
47833 --- a/drivers/pci/hotplug/cpcihp_zt5550.c
47834 +++ b/drivers/pci/hotplug/cpcihp_zt5550.c
47835 @@ -59,7 +59,6 @@
47836 /* local variables */
47837 static bool debug;
47838 static bool poll;
47839 -static struct cpci_hp_controller_ops zt5550_hpc_ops;
47840 static struct cpci_hp_controller zt5550_hpc;
47841
47842 /* Primary cPCI bus bridge device */
47843 @@ -205,6 +204,10 @@ static int zt5550_hc_disable_irq(void)
47844 return 0;
47845 }
47846
47847 +static struct cpci_hp_controller_ops zt5550_hpc_ops = {
47848 + .query_enum = zt5550_hc_query_enum,
47849 +};
47850 +
47851 static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
47852 {
47853 int status;
47854 @@ -216,16 +219,17 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
47855 dbg("returned from zt5550_hc_config");
47856
47857 memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
47858 - zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
47859 zt5550_hpc.ops = &zt5550_hpc_ops;
47860 if(!poll) {
47861 zt5550_hpc.irq = hc_dev->irq;
47862 zt5550_hpc.irq_flags = IRQF_SHARED;
47863 zt5550_hpc.dev_id = hc_dev;
47864
47865 - zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
47866 - zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
47867 - zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
47868 + pax_open_kernel();
47869 + *(void **)&zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
47870 + *(void **)&zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
47871 + *(void **)&zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
47872 + pax_open_kernel();
47873 } else {
47874 info("using ENUM# polling mode");
47875 }
47876 diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
47877 index 76ba8a1..20ca857 100644
47878 --- a/drivers/pci/hotplug/cpqphp_nvram.c
47879 +++ b/drivers/pci/hotplug/cpqphp_nvram.c
47880 @@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start)
47881
47882 void compaq_nvram_init (void __iomem *rom_start)
47883 {
47884 +
47885 +#ifndef CONFIG_PAX_KERNEXEC
47886 if (rom_start) {
47887 compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
47888 }
47889 +#endif
47890 +
47891 dbg("int15 entry = %p\n", compaq_int15_entry_point);
47892
47893 /* initialize our int15 lock */
47894 diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
47895 index cfa92a9..29539c5 100644
47896 --- a/drivers/pci/hotplug/pci_hotplug_core.c
47897 +++ b/drivers/pci/hotplug/pci_hotplug_core.c
47898 @@ -441,8 +441,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
47899 return -EINVAL;
47900 }
47901
47902 - slot->ops->owner = owner;
47903 - slot->ops->mod_name = mod_name;
47904 + pax_open_kernel();
47905 + *(struct module **)&slot->ops->owner = owner;
47906 + *(const char **)&slot->ops->mod_name = mod_name;
47907 + pax_close_kernel();
47908
47909 mutex_lock(&pci_hp_mutex);
47910 /*
47911 diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
47912 index 0e0a2ff..29dff57 100644
47913 --- a/drivers/pci/hotplug/pciehp_core.c
47914 +++ b/drivers/pci/hotplug/pciehp_core.c
47915 @@ -92,7 +92,7 @@ static int init_slot(struct controller *ctrl)
47916 struct slot *slot = ctrl->slot;
47917 struct hotplug_slot *hotplug = NULL;
47918 struct hotplug_slot_info *info = NULL;
47919 - struct hotplug_slot_ops *ops = NULL;
47920 + hotplug_slot_ops_no_const *ops = NULL;
47921 char name[SLOT_NAME_SIZE];
47922 int retval = -ENOMEM;
47923
47924 diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
47925 index fb02fc2..83dc2c3 100644
47926 --- a/drivers/pci/msi.c
47927 +++ b/drivers/pci/msi.c
47928 @@ -524,8 +524,8 @@ static int populate_msi_sysfs(struct pci_dev *pdev)
47929 {
47930 struct attribute **msi_attrs;
47931 struct attribute *msi_attr;
47932 - struct device_attribute *msi_dev_attr;
47933 - struct attribute_group *msi_irq_group;
47934 + device_attribute_no_const *msi_dev_attr;
47935 + attribute_group_no_const *msi_irq_group;
47936 const struct attribute_group **msi_irq_groups;
47937 struct msi_desc *entry;
47938 int ret = -ENOMEM;
47939 @@ -589,7 +589,7 @@ error_attrs:
47940 count = 0;
47941 msi_attr = msi_attrs[count];
47942 while (msi_attr) {
47943 - msi_dev_attr = container_of(msi_attr, struct device_attribute, attr);
47944 + msi_dev_attr = container_of(msi_attr, device_attribute_no_const, attr);
47945 kfree(msi_attr->name);
47946 kfree(msi_dev_attr);
47947 ++count;
47948 diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
47949 index 4e0acef..bd98e31 100644
47950 --- a/drivers/pci/pci-sysfs.c
47951 +++ b/drivers/pci/pci-sysfs.c
47952 @@ -1101,7 +1101,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
47953 {
47954 /* allocate attribute structure, piggyback attribute name */
47955 int name_len = write_combine ? 13 : 10;
47956 - struct bin_attribute *res_attr;
47957 + bin_attribute_no_const *res_attr;
47958 int retval;
47959
47960 res_attr = kzalloc(sizeof(*res_attr) + name_len, GFP_ATOMIC);
47961 @@ -1286,7 +1286,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
47962 static int pci_create_capabilities_sysfs(struct pci_dev *dev)
47963 {
47964 int retval;
47965 - struct bin_attribute *attr;
47966 + bin_attribute_no_const *attr;
47967
47968 /* If the device has VPD, try to expose it in sysfs. */
47969 if (dev->vpd) {
47970 @@ -1333,7 +1333,7 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
47971 {
47972 int retval;
47973 int rom_size = 0;
47974 - struct bin_attribute *attr;
47975 + bin_attribute_no_const *attr;
47976
47977 if (!sysfs_initialized)
47978 return -EACCES;
47979 diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
47980 index 6bd0822..35bc2b3 100644
47981 --- a/drivers/pci/pci.h
47982 +++ b/drivers/pci/pci.h
47983 @@ -91,7 +91,7 @@ struct pci_vpd_ops {
47984 struct pci_vpd {
47985 unsigned int len;
47986 const struct pci_vpd_ops *ops;
47987 - struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
47988 + bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
47989 };
47990
47991 int pci_vpd_pci22_init(struct pci_dev *dev);
47992 diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
47993 index e1e7026..d28dd33 100644
47994 --- a/drivers/pci/pcie/aspm.c
47995 +++ b/drivers/pci/pcie/aspm.c
47996 @@ -27,9 +27,9 @@
47997 #define MODULE_PARAM_PREFIX "pcie_aspm."
47998
47999 /* Note: those are not register definitions */
48000 -#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */
48001 -#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */
48002 -#define ASPM_STATE_L1 (4) /* L1 state */
48003 +#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */
48004 +#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */
48005 +#define ASPM_STATE_L1 (4U) /* L1 state */
48006 #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
48007 #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1)
48008
48009 diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
48010 index ef09f5f..49ac62f 100644
48011 --- a/drivers/pci/probe.c
48012 +++ b/drivers/pci/probe.c
48013 @@ -175,7 +175,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
48014 struct pci_bus_region region, inverted_region;
48015 bool bar_too_big = false, bar_disabled = false;
48016
48017 - mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
48018 + mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
48019
48020 /* No printks while decoding is disabled! */
48021 if (!dev->mmio_always_on) {
48022 diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
48023 index 46d1378..30e452b 100644
48024 --- a/drivers/pci/proc.c
48025 +++ b/drivers/pci/proc.c
48026 @@ -434,7 +434,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
48027 static int __init pci_proc_init(void)
48028 {
48029 struct pci_dev *dev = NULL;
48030 +
48031 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
48032 +#ifdef CONFIG_GRKERNSEC_PROC_USER
48033 + proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
48034 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48035 + proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
48036 +#endif
48037 +#else
48038 proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
48039 +#endif
48040 proc_create("devices", 0, proc_bus_pci_dir,
48041 &proc_bus_pci_dev_operations);
48042 proc_initialized = 1;
48043 diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
48044 index 7f3aad0..7d604bb 100644
48045 --- a/drivers/platform/chrome/chromeos_laptop.c
48046 +++ b/drivers/platform/chrome/chromeos_laptop.c
48047 @@ -406,7 +406,7 @@ static struct chromeos_laptop cr48 = {
48048 .callback = chromeos_laptop_dmi_matched, \
48049 .driver_data = (void *)&board_
48050
48051 -static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
48052 +static struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = {
48053 {
48054 .ident = "Samsung Series 5 550",
48055 .matches = {
48056 diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
48057 index 541f951..4dfd598 100644
48058 --- a/drivers/platform/x86/alienware-wmi.c
48059 +++ b/drivers/platform/x86/alienware-wmi.c
48060 @@ -132,7 +132,7 @@ struct wmax_led_args {
48061 } __packed;
48062
48063 static struct platform_device *platform_device;
48064 -static struct device_attribute *zone_dev_attrs;
48065 +static device_attribute_no_const *zone_dev_attrs;
48066 static struct attribute **zone_attrs;
48067 static struct platform_zone *zone_data;
48068
48069 @@ -143,7 +143,7 @@ static struct platform_driver platform_driver = {
48070 }
48071 };
48072
48073 -static struct attribute_group zone_attribute_group = {
48074 +static attribute_group_no_const zone_attribute_group = {
48075 .name = "rgb_zones",
48076 };
48077
48078 diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
48079 index c5e082f..d6307a0 100644
48080 --- a/drivers/platform/x86/asus-wmi.c
48081 +++ b/drivers/platform/x86/asus-wmi.c
48082 @@ -1595,6 +1595,10 @@ static int show_dsts(struct seq_file *m, void *data)
48083 int err;
48084 u32 retval = -1;
48085
48086 +#ifdef CONFIG_GRKERNSEC_KMEM
48087 + return -EPERM;
48088 +#endif
48089 +
48090 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
48091
48092 if (err < 0)
48093 @@ -1611,6 +1615,10 @@ static int show_devs(struct seq_file *m, void *data)
48094 int err;
48095 u32 retval = -1;
48096
48097 +#ifdef CONFIG_GRKERNSEC_KMEM
48098 + return -EPERM;
48099 +#endif
48100 +
48101 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
48102 &retval);
48103
48104 @@ -1635,6 +1643,10 @@ static int show_call(struct seq_file *m, void *data)
48105 union acpi_object *obj;
48106 acpi_status status;
48107
48108 +#ifdef CONFIG_GRKERNSEC_KMEM
48109 + return -EPERM;
48110 +#endif
48111 +
48112 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
48113 1, asus->debug.method_id,
48114 &input, &output);
48115 diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
48116 index 62f8030..c7f2a45 100644
48117 --- a/drivers/platform/x86/msi-laptop.c
48118 +++ b/drivers/platform/x86/msi-laptop.c
48119 @@ -1000,12 +1000,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
48120
48121 if (!quirks->ec_read_only) {
48122 /* allow userland write sysfs file */
48123 - dev_attr_bluetooth.store = store_bluetooth;
48124 - dev_attr_wlan.store = store_wlan;
48125 - dev_attr_threeg.store = store_threeg;
48126 - dev_attr_bluetooth.attr.mode |= S_IWUSR;
48127 - dev_attr_wlan.attr.mode |= S_IWUSR;
48128 - dev_attr_threeg.attr.mode |= S_IWUSR;
48129 + pax_open_kernel();
48130 + *(void **)&dev_attr_bluetooth.store = store_bluetooth;
48131 + *(void **)&dev_attr_wlan.store = store_wlan;
48132 + *(void **)&dev_attr_threeg.store = store_threeg;
48133 + *(umode_t *)&dev_attr_bluetooth.attr.mode |= S_IWUSR;
48134 + *(umode_t *)&dev_attr_wlan.attr.mode |= S_IWUSR;
48135 + *(umode_t *)&dev_attr_threeg.attr.mode |= S_IWUSR;
48136 + pax_close_kernel();
48137 }
48138
48139 /* disable hardware control by fn key */
48140 diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
48141 index 70222f2..8c8ce66 100644
48142 --- a/drivers/platform/x86/msi-wmi.c
48143 +++ b/drivers/platform/x86/msi-wmi.c
48144 @@ -183,7 +183,7 @@ static const struct backlight_ops msi_backlight_ops = {
48145 static void msi_wmi_notify(u32 value, void *context)
48146 {
48147 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
48148 - static struct key_entry *key;
48149 + struct key_entry *key;
48150 union acpi_object *obj;
48151 acpi_status status;
48152
48153 diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
48154 index 9c5a074..06c976a 100644
48155 --- a/drivers/platform/x86/sony-laptop.c
48156 +++ b/drivers/platform/x86/sony-laptop.c
48157 @@ -2527,7 +2527,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
48158 }
48159
48160 /* High speed charging function */
48161 -static struct device_attribute *hsc_handle;
48162 +static device_attribute_no_const *hsc_handle;
48163
48164 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
48165 struct device_attribute *attr,
48166 @@ -2601,7 +2601,7 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
48167 }
48168
48169 /* low battery function */
48170 -static struct device_attribute *lowbatt_handle;
48171 +static device_attribute_no_const *lowbatt_handle;
48172
48173 static ssize_t sony_nc_lowbatt_store(struct device *dev,
48174 struct device_attribute *attr,
48175 @@ -2667,7 +2667,7 @@ static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
48176 }
48177
48178 /* fan speed function */
48179 -static struct device_attribute *fan_handle, *hsf_handle;
48180 +static device_attribute_no_const *fan_handle, *hsf_handle;
48181
48182 static ssize_t sony_nc_hsfan_store(struct device *dev,
48183 struct device_attribute *attr,
48184 @@ -2774,7 +2774,7 @@ static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
48185 }
48186
48187 /* USB charge function */
48188 -static struct device_attribute *uc_handle;
48189 +static device_attribute_no_const *uc_handle;
48190
48191 static ssize_t sony_nc_usb_charge_store(struct device *dev,
48192 struct device_attribute *attr,
48193 @@ -2848,7 +2848,7 @@ static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
48194 }
48195
48196 /* Panel ID function */
48197 -static struct device_attribute *panel_handle;
48198 +static device_attribute_no_const *panel_handle;
48199
48200 static ssize_t sony_nc_panelid_show(struct device *dev,
48201 struct device_attribute *attr, char *buffer)
48202 @@ -2895,7 +2895,7 @@ static void sony_nc_panelid_cleanup(struct platform_device *pd)
48203 }
48204
48205 /* smart connect function */
48206 -static struct device_attribute *sc_handle;
48207 +static device_attribute_no_const *sc_handle;
48208
48209 static ssize_t sony_nc_smart_conn_store(struct device *dev,
48210 struct device_attribute *attr,
48211 diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
48212 index 15e61c1..40a39c7 100644
48213 --- a/drivers/platform/x86/thinkpad_acpi.c
48214 +++ b/drivers/platform/x86/thinkpad_acpi.c
48215 @@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void)
48216 return 0;
48217 }
48218
48219 -void static hotkey_mask_warn_incomplete_mask(void)
48220 +static void hotkey_mask_warn_incomplete_mask(void)
48221 {
48222 /* log only what the user can fix... */
48223 const u32 wantedmask = hotkey_driver_mask &
48224 @@ -2438,10 +2438,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
48225 && !tp_features.bright_unkfw)
48226 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
48227 }
48228 +}
48229
48230 #undef TPACPI_COMPARE_KEY
48231 #undef TPACPI_MAY_SEND_KEY
48232 -}
48233
48234 /*
48235 * Polling driver
48236 diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
48237 index 438d4c7..ca8a2fb 100644
48238 --- a/drivers/pnp/pnpbios/bioscalls.c
48239 +++ b/drivers/pnp/pnpbios/bioscalls.c
48240 @@ -59,7 +59,7 @@ do { \
48241 set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
48242 } while(0)
48243
48244 -static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
48245 +static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
48246 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
48247
48248 /*
48249 @@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
48250
48251 cpu = get_cpu();
48252 save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
48253 +
48254 + pax_open_kernel();
48255 get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
48256 + pax_close_kernel();
48257
48258 /* On some boxes IRQ's during PnP BIOS calls are deadly. */
48259 spin_lock_irqsave(&pnp_bios_lock, flags);
48260 @@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
48261 :"memory");
48262 spin_unlock_irqrestore(&pnp_bios_lock, flags);
48263
48264 + pax_open_kernel();
48265 get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
48266 + pax_close_kernel();
48267 +
48268 put_cpu();
48269
48270 /* If we get here and this is set then the PnP BIOS faulted on us. */
48271 @@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
48272 return status;
48273 }
48274
48275 -void pnpbios_calls_init(union pnp_bios_install_struct *header)
48276 +void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
48277 {
48278 int i;
48279
48280 @@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
48281 pnp_bios_callpoint.offset = header->fields.pm16offset;
48282 pnp_bios_callpoint.segment = PNP_CS16;
48283
48284 + pax_open_kernel();
48285 +
48286 for_each_possible_cpu(i) {
48287 struct desc_struct *gdt = get_cpu_gdt_table(i);
48288 if (!gdt)
48289 @@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
48290 set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
48291 (unsigned long)__va(header->fields.pm16dseg));
48292 }
48293 +
48294 + pax_close_kernel();
48295 }
48296 diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
48297 index 01712cb..782e822 100644
48298 --- a/drivers/pnp/resource.c
48299 +++ b/drivers/pnp/resource.c
48300 @@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res)
48301 return 1;
48302
48303 /* check if the resource is valid */
48304 - if (*irq < 0 || *irq > 15)
48305 + if (*irq > 15)
48306 return 0;
48307
48308 /* check if the resource is reserved */
48309 @@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
48310 return 1;
48311
48312 /* check if the resource is valid */
48313 - if (*dma < 0 || *dma == 4 || *dma > 7)
48314 + if (*dma == 4 || *dma > 7)
48315 return 0;
48316
48317 /* check if the resource is reserved */
48318 diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
48319 index 0c52e2a..3421ab7 100644
48320 --- a/drivers/power/pda_power.c
48321 +++ b/drivers/power/pda_power.c
48322 @@ -37,7 +37,11 @@ static int polling;
48323
48324 #if IS_ENABLED(CONFIG_USB_PHY)
48325 static struct usb_phy *transceiver;
48326 -static struct notifier_block otg_nb;
48327 +static int otg_handle_notification(struct notifier_block *nb,
48328 + unsigned long event, void *unused);
48329 +static struct notifier_block otg_nb = {
48330 + .notifier_call = otg_handle_notification
48331 +};
48332 #endif
48333
48334 static struct regulator *ac_draw;
48335 @@ -369,7 +373,6 @@ static int pda_power_probe(struct platform_device *pdev)
48336
48337 #if IS_ENABLED(CONFIG_USB_PHY)
48338 if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
48339 - otg_nb.notifier_call = otg_handle_notification;
48340 ret = usb_register_notifier(transceiver, &otg_nb);
48341 if (ret) {
48342 dev_err(dev, "failure to register otg notifier\n");
48343 diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
48344 index cc439fd..8fa30df 100644
48345 --- a/drivers/power/power_supply.h
48346 +++ b/drivers/power/power_supply.h
48347 @@ -16,12 +16,12 @@ struct power_supply;
48348
48349 #ifdef CONFIG_SYSFS
48350
48351 -extern void power_supply_init_attrs(struct device_type *dev_type);
48352 +extern void power_supply_init_attrs(void);
48353 extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
48354
48355 #else
48356
48357 -static inline void power_supply_init_attrs(struct device_type *dev_type) {}
48358 +static inline void power_supply_init_attrs(void) {}
48359 #define power_supply_uevent NULL
48360
48361 #endif /* CONFIG_SYSFS */
48362 diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
48363 index 2660664..75fcb04 100644
48364 --- a/drivers/power/power_supply_core.c
48365 +++ b/drivers/power/power_supply_core.c
48366 @@ -28,7 +28,10 @@ EXPORT_SYMBOL_GPL(power_supply_class);
48367 ATOMIC_NOTIFIER_HEAD(power_supply_notifier);
48368 EXPORT_SYMBOL_GPL(power_supply_notifier);
48369
48370 -static struct device_type power_supply_dev_type;
48371 +extern const struct attribute_group *power_supply_attr_groups[];
48372 +static struct device_type power_supply_dev_type = {
48373 + .groups = power_supply_attr_groups,
48374 +};
48375
48376 static bool __power_supply_is_supplied_by(struct power_supply *supplier,
48377 struct power_supply *supply)
48378 @@ -628,7 +631,7 @@ static int __init power_supply_class_init(void)
48379 return PTR_ERR(power_supply_class);
48380
48381 power_supply_class->dev_uevent = power_supply_uevent;
48382 - power_supply_init_attrs(&power_supply_dev_type);
48383 + power_supply_init_attrs();
48384
48385 return 0;
48386 }
48387 diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
48388 index 44420d1..967126e 100644
48389 --- a/drivers/power/power_supply_sysfs.c
48390 +++ b/drivers/power/power_supply_sysfs.c
48391 @@ -230,17 +230,15 @@ static struct attribute_group power_supply_attr_group = {
48392 .is_visible = power_supply_attr_is_visible,
48393 };
48394
48395 -static const struct attribute_group *power_supply_attr_groups[] = {
48396 +const struct attribute_group *power_supply_attr_groups[] = {
48397 &power_supply_attr_group,
48398 NULL,
48399 };
48400
48401 -void power_supply_init_attrs(struct device_type *dev_type)
48402 +void power_supply_init_attrs(void)
48403 {
48404 int i;
48405
48406 - dev_type->groups = power_supply_attr_groups;
48407 -
48408 for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
48409 __power_supply_attrs[i] = &power_supply_attrs[i].attr;
48410 }
48411 diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
48412 index 84419af..268ede8 100644
48413 --- a/drivers/powercap/powercap_sys.c
48414 +++ b/drivers/powercap/powercap_sys.c
48415 @@ -154,8 +154,77 @@ struct powercap_constraint_attr {
48416 struct device_attribute name_attr;
48417 };
48418
48419 +static ssize_t show_constraint_name(struct device *dev,
48420 + struct device_attribute *dev_attr,
48421 + char *buf);
48422 +
48423 static struct powercap_constraint_attr
48424 - constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
48425 + constraint_attrs[MAX_CONSTRAINTS_PER_ZONE] = {
48426 + [0 ... MAX_CONSTRAINTS_PER_ZONE - 1] = {
48427 + .power_limit_attr = {
48428 + .attr = {
48429 + .name = NULL,
48430 + .mode = S_IWUSR | S_IRUGO
48431 + },
48432 + .show = show_constraint_power_limit_uw,
48433 + .store = store_constraint_power_limit_uw
48434 + },
48435 +
48436 + .time_window_attr = {
48437 + .attr = {
48438 + .name = NULL,
48439 + .mode = S_IWUSR | S_IRUGO
48440 + },
48441 + .show = show_constraint_time_window_us,
48442 + .store = store_constraint_time_window_us
48443 + },
48444 +
48445 + .max_power_attr = {
48446 + .attr = {
48447 + .name = NULL,
48448 + .mode = S_IRUGO
48449 + },
48450 + .show = show_constraint_max_power_uw,
48451 + .store = NULL
48452 + },
48453 +
48454 + .min_power_attr = {
48455 + .attr = {
48456 + .name = NULL,
48457 + .mode = S_IRUGO
48458 + },
48459 + .show = show_constraint_min_power_uw,
48460 + .store = NULL
48461 + },
48462 +
48463 + .max_time_window_attr = {
48464 + .attr = {
48465 + .name = NULL,
48466 + .mode = S_IRUGO
48467 + },
48468 + .show = show_constraint_max_time_window_us,
48469 + .store = NULL
48470 + },
48471 +
48472 + .min_time_window_attr = {
48473 + .attr = {
48474 + .name = NULL,
48475 + .mode = S_IRUGO
48476 + },
48477 + .show = show_constraint_min_time_window_us,
48478 + .store = NULL
48479 + },
48480 +
48481 + .name_attr = {
48482 + .attr = {
48483 + .name = NULL,
48484 + .mode = S_IRUGO
48485 + },
48486 + .show = show_constraint_name,
48487 + .store = NULL
48488 + }
48489 + }
48490 +};
48491
48492 /* A list of powercap control_types */
48493 static LIST_HEAD(powercap_cntrl_list);
48494 @@ -193,23 +262,16 @@ static ssize_t show_constraint_name(struct device *dev,
48495 }
48496
48497 static int create_constraint_attribute(int id, const char *name,
48498 - int mode,
48499 - struct device_attribute *dev_attr,
48500 - ssize_t (*show)(struct device *,
48501 - struct device_attribute *, char *),
48502 - ssize_t (*store)(struct device *,
48503 - struct device_attribute *,
48504 - const char *, size_t)
48505 - )
48506 + struct device_attribute *dev_attr)
48507 {
48508 + name = kasprintf(GFP_KERNEL, "constraint_%d_%s", id, name);
48509
48510 - dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
48511 - id, name);
48512 - if (!dev_attr->attr.name)
48513 + if (!name)
48514 return -ENOMEM;
48515 - dev_attr->attr.mode = mode;
48516 - dev_attr->show = show;
48517 - dev_attr->store = store;
48518 +
48519 + pax_open_kernel();
48520 + *(const char **)&dev_attr->attr.name = name;
48521 + pax_close_kernel();
48522
48523 return 0;
48524 }
48525 @@ -236,49 +298,31 @@ static int seed_constraint_attributes(void)
48526
48527 for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
48528 ret = create_constraint_attribute(i, "power_limit_uw",
48529 - S_IWUSR | S_IRUGO,
48530 - &constraint_attrs[i].power_limit_attr,
48531 - show_constraint_power_limit_uw,
48532 - store_constraint_power_limit_uw);
48533 + &constraint_attrs[i].power_limit_attr);
48534 if (ret)
48535 goto err_alloc;
48536 ret = create_constraint_attribute(i, "time_window_us",
48537 - S_IWUSR | S_IRUGO,
48538 - &constraint_attrs[i].time_window_attr,
48539 - show_constraint_time_window_us,
48540 - store_constraint_time_window_us);
48541 + &constraint_attrs[i].time_window_attr);
48542 if (ret)
48543 goto err_alloc;
48544 - ret = create_constraint_attribute(i, "name", S_IRUGO,
48545 - &constraint_attrs[i].name_attr,
48546 - show_constraint_name,
48547 - NULL);
48548 + ret = create_constraint_attribute(i, "name",
48549 + &constraint_attrs[i].name_attr);
48550 if (ret)
48551 goto err_alloc;
48552 - ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
48553 - &constraint_attrs[i].max_power_attr,
48554 - show_constraint_max_power_uw,
48555 - NULL);
48556 + ret = create_constraint_attribute(i, "max_power_uw",
48557 + &constraint_attrs[i].max_power_attr);
48558 if (ret)
48559 goto err_alloc;
48560 - ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
48561 - &constraint_attrs[i].min_power_attr,
48562 - show_constraint_min_power_uw,
48563 - NULL);
48564 + ret = create_constraint_attribute(i, "min_power_uw",
48565 + &constraint_attrs[i].min_power_attr);
48566 if (ret)
48567 goto err_alloc;
48568 ret = create_constraint_attribute(i, "max_time_window_us",
48569 - S_IRUGO,
48570 - &constraint_attrs[i].max_time_window_attr,
48571 - show_constraint_max_time_window_us,
48572 - NULL);
48573 + &constraint_attrs[i].max_time_window_attr);
48574 if (ret)
48575 goto err_alloc;
48576 ret = create_constraint_attribute(i, "min_time_window_us",
48577 - S_IRUGO,
48578 - &constraint_attrs[i].min_time_window_attr,
48579 - show_constraint_min_time_window_us,
48580 - NULL);
48581 + &constraint_attrs[i].min_time_window_attr);
48582 if (ret)
48583 goto err_alloc;
48584
48585 @@ -378,10 +422,12 @@ static void create_power_zone_common_attributes(
48586 power_zone->zone_dev_attrs[count++] =
48587 &dev_attr_max_energy_range_uj.attr;
48588 if (power_zone->ops->get_energy_uj) {
48589 + pax_open_kernel();
48590 if (power_zone->ops->reset_energy_uj)
48591 - dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
48592 + *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
48593 else
48594 - dev_attr_energy_uj.attr.mode = S_IRUGO;
48595 + *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IRUGO;
48596 + pax_close_kernel();
48597 power_zone->zone_dev_attrs[count++] =
48598 &dev_attr_energy_uj.attr;
48599 }
48600 diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
48601 index 9c5d414..c7900ce 100644
48602 --- a/drivers/ptp/ptp_private.h
48603 +++ b/drivers/ptp/ptp_private.h
48604 @@ -51,7 +51,7 @@ struct ptp_clock {
48605 struct mutex pincfg_mux; /* protect concurrent info->pin_config access */
48606 wait_queue_head_t tsev_wq;
48607 int defunct; /* tells readers to go away when clock is being removed */
48608 - struct device_attribute *pin_dev_attr;
48609 + device_attribute_no_const *pin_dev_attr;
48610 struct attribute **pin_attr;
48611 struct attribute_group pin_attr_group;
48612 };
48613 diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
48614 index 302e626..12579af 100644
48615 --- a/drivers/ptp/ptp_sysfs.c
48616 +++ b/drivers/ptp/ptp_sysfs.c
48617 @@ -280,7 +280,7 @@ static int ptp_populate_pins(struct ptp_clock *ptp)
48618 goto no_pin_attr;
48619
48620 for (i = 0; i < n_pins; i++) {
48621 - struct device_attribute *da = &ptp->pin_dev_attr[i];
48622 + device_attribute_no_const *da = &ptp->pin_dev_attr[i];
48623 sysfs_attr_init(&da->attr);
48624 da->attr.name = info->pin_config[i].name;
48625 da->attr.mode = 0644;
48626 diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
48627 index 9a09f3c..450b523 100644
48628 --- a/drivers/regulator/core.c
48629 +++ b/drivers/regulator/core.c
48630 @@ -3380,7 +3380,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
48631 {
48632 const struct regulation_constraints *constraints = NULL;
48633 const struct regulator_init_data *init_data;
48634 - static atomic_t regulator_no = ATOMIC_INIT(0);
48635 + static atomic_unchecked_t regulator_no = ATOMIC_INIT(0);
48636 struct regulator_dev *rdev;
48637 struct device *dev;
48638 int ret, i;
48639 @@ -3450,7 +3450,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
48640 rdev->dev.of_node = config->of_node;
48641 rdev->dev.parent = dev;
48642 dev_set_name(&rdev->dev, "regulator.%d",
48643 - atomic_inc_return(&regulator_no) - 1);
48644 + atomic_inc_return_unchecked(&regulator_no) - 1);
48645 ret = device_register(&rdev->dev);
48646 if (ret != 0) {
48647 put_device(&rdev->dev);
48648 diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
48649 index 2fc4111..6aa88ca 100644
48650 --- a/drivers/regulator/max8660.c
48651 +++ b/drivers/regulator/max8660.c
48652 @@ -424,8 +424,10 @@ static int max8660_probe(struct i2c_client *client,
48653 max8660->shadow_regs[MAX8660_OVER1] = 5;
48654 } else {
48655 /* Otherwise devices can be toggled via software */
48656 - max8660_dcdc_ops.enable = max8660_dcdc_enable;
48657 - max8660_dcdc_ops.disable = max8660_dcdc_disable;
48658 + pax_open_kernel();
48659 + *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
48660 + *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
48661 + pax_close_kernel();
48662 }
48663
48664 /*
48665 diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
48666 index dbedf17..18ff6b7 100644
48667 --- a/drivers/regulator/max8973-regulator.c
48668 +++ b/drivers/regulator/max8973-regulator.c
48669 @@ -403,9 +403,11 @@ static int max8973_probe(struct i2c_client *client,
48670 if (!pdata || !pdata->enable_ext_control) {
48671 max->desc.enable_reg = MAX8973_VOUT;
48672 max->desc.enable_mask = MAX8973_VOUT_ENABLE;
48673 - max->ops.enable = regulator_enable_regmap;
48674 - max->ops.disable = regulator_disable_regmap;
48675 - max->ops.is_enabled = regulator_is_enabled_regmap;
48676 + pax_open_kernel();
48677 + *(void **)&max->ops.enable = regulator_enable_regmap;
48678 + *(void **)&max->ops.disable = regulator_disable_regmap;
48679 + *(void **)&max->ops.is_enabled = regulator_is_enabled_regmap;
48680 + pax_close_kernel();
48681 }
48682
48683 if (pdata) {
48684 diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
48685 index f374fa5..26f0683 100644
48686 --- a/drivers/regulator/mc13892-regulator.c
48687 +++ b/drivers/regulator/mc13892-regulator.c
48688 @@ -582,10 +582,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
48689 }
48690 mc13xxx_unlock(mc13892);
48691
48692 - mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
48693 + pax_open_kernel();
48694 + *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
48695 = mc13892_vcam_set_mode;
48696 - mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
48697 + *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
48698 = mc13892_vcam_get_mode;
48699 + pax_close_kernel();
48700
48701 mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
48702 ARRAY_SIZE(mc13892_regulators));
48703 diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
48704 index 0963c93..ea29cce 100644
48705 --- a/drivers/rtc/rtc-cmos.c
48706 +++ b/drivers/rtc/rtc-cmos.c
48707 @@ -777,7 +777,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
48708 hpet_rtc_timer_init();
48709
48710 /* export at least the first block of NVRAM */
48711 - nvram.size = address_space - NVRAM_OFFSET;
48712 + pax_open_kernel();
48713 + *(size_t *)&nvram.size = address_space - NVRAM_OFFSET;
48714 + pax_close_kernel();
48715 retval = sysfs_create_bin_file(&dev->kobj, &nvram);
48716 if (retval < 0) {
48717 dev_dbg(dev, "can't create nvram file? %d\n", retval);
48718 diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
48719 index d049393..bb20be0 100644
48720 --- a/drivers/rtc/rtc-dev.c
48721 +++ b/drivers/rtc/rtc-dev.c
48722 @@ -16,6 +16,7 @@
48723 #include <linux/module.h>
48724 #include <linux/rtc.h>
48725 #include <linux/sched.h>
48726 +#include <linux/grsecurity.h>
48727 #include "rtc-core.h"
48728
48729 static dev_t rtc_devt;
48730 @@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
48731 if (copy_from_user(&tm, uarg, sizeof(tm)))
48732 return -EFAULT;
48733
48734 + gr_log_timechange();
48735 +
48736 return rtc_set_time(rtc, &tm);
48737
48738 case RTC_PIE_ON:
48739 diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
48740 index f03d5ba..8325bf6 100644
48741 --- a/drivers/rtc/rtc-ds1307.c
48742 +++ b/drivers/rtc/rtc-ds1307.c
48743 @@ -107,7 +107,7 @@ struct ds1307 {
48744 u8 offset; /* register's offset */
48745 u8 regs[11];
48746 u16 nvram_offset;
48747 - struct bin_attribute *nvram;
48748 + bin_attribute_no_const *nvram;
48749 enum ds_type type;
48750 unsigned long flags;
48751 #define HAS_NVRAM 0 /* bit 0 == sysfs file active */
48752 diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
48753 index 11880c1..b823aa4 100644
48754 --- a/drivers/rtc/rtc-m48t59.c
48755 +++ b/drivers/rtc/rtc-m48t59.c
48756 @@ -483,7 +483,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
48757 if (IS_ERR(m48t59->rtc))
48758 return PTR_ERR(m48t59->rtc);
48759
48760 - m48t59_nvram_attr.size = pdata->offset;
48761 + pax_open_kernel();
48762 + *(size_t *)&m48t59_nvram_attr.size = pdata->offset;
48763 + pax_close_kernel();
48764
48765 ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
48766 if (ret)
48767 diff --git a/drivers/scsi/aic7xxx/aic79xx_pci.c b/drivers/scsi/aic7xxx/aic79xx_pci.c
48768 index 14b5f8d..cc9bd26 100644
48769 --- a/drivers/scsi/aic7xxx/aic79xx_pci.c
48770 +++ b/drivers/scsi/aic7xxx/aic79xx_pci.c
48771 @@ -827,7 +827,7 @@ ahd_pci_intr(struct ahd_softc *ahd)
48772 for (bit = 0; bit < 8; bit++) {
48773
48774 if ((pci_status[i] & (0x1 << bit)) != 0) {
48775 - static const char *s;
48776 + const char *s;
48777
48778 s = pci_status_strings[bit];
48779 if (i == 7/*TARG*/ && bit == 3)
48780 @@ -887,23 +887,15 @@ ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
48781
48782 for (bit = 0; bit < 8; bit++) {
48783
48784 - if ((split_status[i] & (0x1 << bit)) != 0) {
48785 - static const char *s;
48786 -
48787 - s = split_status_strings[bit];
48788 - printk(s, ahd_name(ahd),
48789 + if ((split_status[i] & (0x1 << bit)) != 0)
48790 + printk(split_status_strings[bit], ahd_name(ahd),
48791 split_status_source[i]);
48792 - }
48793
48794 if (i > 1)
48795 continue;
48796
48797 - if ((sg_split_status[i] & (0x1 << bit)) != 0) {
48798 - static const char *s;
48799 -
48800 - s = split_status_strings[bit];
48801 - printk(s, ahd_name(ahd), "SG");
48802 - }
48803 + if ((sg_split_status[i] & (0x1 << bit)) != 0)
48804 + printk(split_status_strings[bit], ahd_name(ahd), "SG");
48805 }
48806 }
48807 /*
48808 diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
48809 index e693af6..2e525b6 100644
48810 --- a/drivers/scsi/bfa/bfa_fcpim.h
48811 +++ b/drivers/scsi/bfa/bfa_fcpim.h
48812 @@ -36,7 +36,7 @@ struct bfa_iotag_s {
48813
48814 struct bfa_itn_s {
48815 bfa_isr_func_t isr;
48816 -};
48817 +} __no_const;
48818
48819 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
48820 void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
48821 diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
48822 index a3ab5cc..8143622 100644
48823 --- a/drivers/scsi/bfa/bfa_fcs.c
48824 +++ b/drivers/scsi/bfa/bfa_fcs.c
48825 @@ -38,10 +38,21 @@ struct bfa_fcs_mod_s {
48826 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
48827
48828 static struct bfa_fcs_mod_s fcs_modules[] = {
48829 - { bfa_fcs_port_attach, NULL, NULL },
48830 - { bfa_fcs_uf_attach, NULL, NULL },
48831 - { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
48832 - bfa_fcs_fabric_modexit },
48833 + {
48834 + .attach = bfa_fcs_port_attach,
48835 + .modinit = NULL,
48836 + .modexit = NULL
48837 + },
48838 + {
48839 + .attach = bfa_fcs_uf_attach,
48840 + .modinit = NULL,
48841 + .modexit = NULL
48842 + },
48843 + {
48844 + .attach = bfa_fcs_fabric_attach,
48845 + .modinit = bfa_fcs_fabric_modinit,
48846 + .modexit = bfa_fcs_fabric_modexit
48847 + },
48848 };
48849
48850 /*
48851 diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
48852 index ff75ef8..2dfe00a 100644
48853 --- a/drivers/scsi/bfa/bfa_fcs_lport.c
48854 +++ b/drivers/scsi/bfa/bfa_fcs_lport.c
48855 @@ -89,15 +89,26 @@ static struct {
48856 void (*offline) (struct bfa_fcs_lport_s *port);
48857 } __port_action[] = {
48858 {
48859 - bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
48860 - bfa_fcs_lport_unknown_offline}, {
48861 - bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
48862 - bfa_fcs_lport_fab_offline}, {
48863 - bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
48864 - bfa_fcs_lport_n2n_offline}, {
48865 - bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
48866 - bfa_fcs_lport_loop_offline},
48867 - };
48868 + .init = bfa_fcs_lport_unknown_init,
48869 + .online = bfa_fcs_lport_unknown_online,
48870 + .offline = bfa_fcs_lport_unknown_offline
48871 + },
48872 + {
48873 + .init = bfa_fcs_lport_fab_init,
48874 + .online = bfa_fcs_lport_fab_online,
48875 + .offline = bfa_fcs_lport_fab_offline
48876 + },
48877 + {
48878 + .init = bfa_fcs_lport_n2n_init,
48879 + .online = bfa_fcs_lport_n2n_online,
48880 + .offline = bfa_fcs_lport_n2n_offline
48881 + },
48882 + {
48883 + .init = bfa_fcs_lport_loop_init,
48884 + .online = bfa_fcs_lport_loop_online,
48885 + .offline = bfa_fcs_lport_loop_offline
48886 + },
48887 +};
48888
48889 /*
48890 * fcs_port_sm FCS logical port state machine
48891 diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
48892 index 2e28392..9d865b6 100644
48893 --- a/drivers/scsi/bfa/bfa_ioc.h
48894 +++ b/drivers/scsi/bfa/bfa_ioc.h
48895 @@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
48896 bfa_ioc_disable_cbfn_t disable_cbfn;
48897 bfa_ioc_hbfail_cbfn_t hbfail_cbfn;
48898 bfa_ioc_reset_cbfn_t reset_cbfn;
48899 -};
48900 +} __no_const;
48901
48902 /*
48903 * IOC event notification mechanism.
48904 @@ -352,7 +352,7 @@ struct bfa_ioc_hwif_s {
48905 void (*ioc_set_alt_fwstate) (struct bfa_ioc_s *ioc,
48906 enum bfi_ioc_state fwstate);
48907 enum bfi_ioc_state (*ioc_get_alt_fwstate) (struct bfa_ioc_s *ioc);
48908 -};
48909 +} __no_const;
48910
48911 /*
48912 * Queue element to wait for room in request queue. FIFO order is
48913 diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
48914 index a14c784..6de6790 100644
48915 --- a/drivers/scsi/bfa/bfa_modules.h
48916 +++ b/drivers/scsi/bfa/bfa_modules.h
48917 @@ -78,12 +78,12 @@ enum {
48918 \
48919 extern struct bfa_module_s hal_mod_ ## __mod; \
48920 struct bfa_module_s hal_mod_ ## __mod = { \
48921 - bfa_ ## __mod ## _meminfo, \
48922 - bfa_ ## __mod ## _attach, \
48923 - bfa_ ## __mod ## _detach, \
48924 - bfa_ ## __mod ## _start, \
48925 - bfa_ ## __mod ## _stop, \
48926 - bfa_ ## __mod ## _iocdisable, \
48927 + .meminfo = bfa_ ## __mod ## _meminfo, \
48928 + .attach = bfa_ ## __mod ## _attach, \
48929 + .detach = bfa_ ## __mod ## _detach, \
48930 + .start = bfa_ ## __mod ## _start, \
48931 + .stop = bfa_ ## __mod ## _stop, \
48932 + .iocdisable = bfa_ ## __mod ## _iocdisable, \
48933 }
48934
48935 #define BFA_CACHELINE_SZ (256)
48936 diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
48937 index 045c4e1..13de803 100644
48938 --- a/drivers/scsi/fcoe/fcoe_sysfs.c
48939 +++ b/drivers/scsi/fcoe/fcoe_sysfs.c
48940 @@ -33,8 +33,8 @@
48941 */
48942 #include "libfcoe.h"
48943
48944 -static atomic_t ctlr_num;
48945 -static atomic_t fcf_num;
48946 +static atomic_unchecked_t ctlr_num;
48947 +static atomic_unchecked_t fcf_num;
48948
48949 /*
48950 * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
48951 @@ -685,7 +685,7 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
48952 if (!ctlr)
48953 goto out;
48954
48955 - ctlr->id = atomic_inc_return(&ctlr_num) - 1;
48956 + ctlr->id = atomic_inc_return_unchecked(&ctlr_num) - 1;
48957 ctlr->f = f;
48958 ctlr->mode = FIP_CONN_TYPE_FABRIC;
48959 INIT_LIST_HEAD(&ctlr->fcfs);
48960 @@ -902,7 +902,7 @@ struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
48961 fcf->dev.parent = &ctlr->dev;
48962 fcf->dev.bus = &fcoe_bus_type;
48963 fcf->dev.type = &fcoe_fcf_device_type;
48964 - fcf->id = atomic_inc_return(&fcf_num) - 1;
48965 + fcf->id = atomic_inc_return_unchecked(&fcf_num) - 1;
48966 fcf->state = FCOE_FCF_STATE_UNKNOWN;
48967
48968 fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
48969 @@ -938,8 +938,8 @@ int __init fcoe_sysfs_setup(void)
48970 {
48971 int error;
48972
48973 - atomic_set(&ctlr_num, 0);
48974 - atomic_set(&fcf_num, 0);
48975 + atomic_set_unchecked(&ctlr_num, 0);
48976 + atomic_set_unchecked(&fcf_num, 0);
48977
48978 error = bus_register(&fcoe_bus_type);
48979 if (error)
48980 diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
48981 index 3cbb57a..95e47a3 100644
48982 --- a/drivers/scsi/hosts.c
48983 +++ b/drivers/scsi/hosts.c
48984 @@ -42,7 +42,7 @@
48985 #include "scsi_logging.h"
48986
48987
48988 -static atomic_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
48989 +static atomic_unchecked_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
48990
48991
48992 static void scsi_host_cls_release(struct device *dev)
48993 @@ -369,7 +369,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
48994 * subtract one because we increment first then return, but we need to
48995 * know what the next host number was before increment
48996 */
48997 - shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
48998 + shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
48999 shost->dma_channel = 0xff;
49000
49001 /* These three are default values which can be overridden */
49002 diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
49003 index fda6cf1..7a6b5d8 100644
49004 --- a/drivers/scsi/hpsa.c
49005 +++ b/drivers/scsi/hpsa.c
49006 @@ -699,10 +699,10 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
49007 unsigned long flags;
49008
49009 if (h->transMethod & CFGTBL_Trans_io_accel1)
49010 - return h->access.command_completed(h, q);
49011 + return h->access->command_completed(h, q);
49012
49013 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
49014 - return h->access.command_completed(h, q);
49015 + return h->access->command_completed(h, q);
49016
49017 if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
49018 a = rq->head[rq->current_entry];
49019 @@ -5460,7 +5460,7 @@ static void start_io(struct ctlr_info *h)
49020 while (!list_empty(&h->reqQ)) {
49021 c = list_entry(h->reqQ.next, struct CommandList, list);
49022 /* can't do anything if fifo is full */
49023 - if ((h->access.fifo_full(h))) {
49024 + if ((h->access->fifo_full(h))) {
49025 h->fifo_recently_full = 1;
49026 dev_warn(&h->pdev->dev, "fifo full\n");
49027 break;
49028 @@ -5484,7 +5484,7 @@ static void start_io(struct ctlr_info *h)
49029
49030 /* Tell the controller execute command */
49031 spin_unlock_irqrestore(&h->lock, flags);
49032 - h->access.submit_command(h, c);
49033 + h->access->submit_command(h, c);
49034 spin_lock_irqsave(&h->lock, flags);
49035 }
49036 spin_unlock_irqrestore(&h->lock, flags);
49037 @@ -5492,17 +5492,17 @@ static void start_io(struct ctlr_info *h)
49038
49039 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
49040 {
49041 - return h->access.command_completed(h, q);
49042 + return h->access->command_completed(h, q);
49043 }
49044
49045 static inline bool interrupt_pending(struct ctlr_info *h)
49046 {
49047 - return h->access.intr_pending(h);
49048 + return h->access->intr_pending(h);
49049 }
49050
49051 static inline long interrupt_not_for_us(struct ctlr_info *h)
49052 {
49053 - return (h->access.intr_pending(h) == 0) ||
49054 + return (h->access->intr_pending(h) == 0) ||
49055 (h->interrupts_enabled == 0);
49056 }
49057
49058 @@ -6456,7 +6456,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
49059 if (prod_index < 0)
49060 return -ENODEV;
49061 h->product_name = products[prod_index].product_name;
49062 - h->access = *(products[prod_index].access);
49063 + h->access = products[prod_index].access;
49064
49065 pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
49066 PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
49067 @@ -6735,7 +6735,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
49068 {
49069 unsigned long flags;
49070
49071 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
49072 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
49073 spin_lock_irqsave(&h->lock, flags);
49074 h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
49075 spin_unlock_irqrestore(&h->lock, flags);
49076 @@ -6963,7 +6963,7 @@ reinit_after_soft_reset:
49077 }
49078
49079 /* make sure the board interrupts are off */
49080 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
49081 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
49082
49083 if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
49084 goto clean2;
49085 @@ -6998,7 +6998,7 @@ reinit_after_soft_reset:
49086 * fake ones to scoop up any residual completions.
49087 */
49088 spin_lock_irqsave(&h->lock, flags);
49089 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
49090 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
49091 spin_unlock_irqrestore(&h->lock, flags);
49092 free_irqs(h);
49093 rc = hpsa_request_irq(h, hpsa_msix_discard_completions,
49094 @@ -7017,9 +7017,9 @@ reinit_after_soft_reset:
49095 dev_info(&h->pdev->dev, "Board READY.\n");
49096 dev_info(&h->pdev->dev,
49097 "Waiting for stale completions to drain.\n");
49098 - h->access.set_intr_mask(h, HPSA_INTR_ON);
49099 + h->access->set_intr_mask(h, HPSA_INTR_ON);
49100 msleep(10000);
49101 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
49102 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
49103
49104 rc = controller_reset_failed(h->cfgtable);
49105 if (rc)
49106 @@ -7045,7 +7045,7 @@ reinit_after_soft_reset:
49107 h->drv_req_rescan = 0;
49108
49109 /* Turn the interrupts on so we can service requests */
49110 - h->access.set_intr_mask(h, HPSA_INTR_ON);
49111 + h->access->set_intr_mask(h, HPSA_INTR_ON);
49112
49113 hpsa_hba_inquiry(h);
49114 hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
49115 @@ -7114,7 +7114,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
49116 * To write all data in the battery backed cache to disks
49117 */
49118 hpsa_flush_cache(h);
49119 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
49120 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
49121 hpsa_free_irqs_and_disable_msix(h);
49122 }
49123
49124 @@ -7232,7 +7232,7 @@ static void hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
49125 CFGTBL_Trans_enable_directed_msix |
49126 (trans_support & (CFGTBL_Trans_io_accel1 |
49127 CFGTBL_Trans_io_accel2));
49128 - struct access_method access = SA5_performant_access;
49129 + struct access_method *access = &SA5_performant_access;
49130
49131 /* This is a bit complicated. There are 8 registers on
49132 * the controller which we write to to tell it 8 different
49133 @@ -7297,12 +7297,12 @@ static void hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
49134 * enable outbound interrupt coalescing in accelerator mode;
49135 */
49136 if (trans_support & CFGTBL_Trans_io_accel1) {
49137 - access = SA5_ioaccel_mode1_access;
49138 + access = &SA5_ioaccel_mode1_access;
49139 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
49140 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
49141 } else {
49142 if (trans_support & CFGTBL_Trans_io_accel2) {
49143 - access = SA5_ioaccel_mode2_access;
49144 + access = &SA5_ioaccel_mode2_access;
49145 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
49146 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
49147 }
49148 diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
49149 index 44235a2..962e91b 100644
49150 --- a/drivers/scsi/hpsa.h
49151 +++ b/drivers/scsi/hpsa.h
49152 @@ -128,7 +128,7 @@ struct ctlr_info {
49153 unsigned int msix_vector;
49154 unsigned int msi_vector;
49155 int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
49156 - struct access_method access;
49157 + struct access_method *access;
49158 char hba_mode_enabled;
49159
49160 /* queue and queue Info */
49161 @@ -541,35 +541,35 @@ static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q)
49162 }
49163
49164 static struct access_method SA5_access = {
49165 - SA5_submit_command,
49166 - SA5_intr_mask,
49167 - SA5_fifo_full,
49168 - SA5_intr_pending,
49169 - SA5_completed,
49170 + .submit_command = SA5_submit_command,
49171 + .set_intr_mask = SA5_intr_mask,
49172 + .fifo_full = SA5_fifo_full,
49173 + .intr_pending = SA5_intr_pending,
49174 + .command_completed = SA5_completed,
49175 };
49176
49177 static struct access_method SA5_ioaccel_mode1_access = {
49178 - SA5_submit_command,
49179 - SA5_performant_intr_mask,
49180 - SA5_fifo_full,
49181 - SA5_ioaccel_mode1_intr_pending,
49182 - SA5_ioaccel_mode1_completed,
49183 + .submit_command = SA5_submit_command,
49184 + .set_intr_mask = SA5_performant_intr_mask,
49185 + .fifo_full = SA5_fifo_full,
49186 + .intr_pending = SA5_ioaccel_mode1_intr_pending,
49187 + .command_completed = SA5_ioaccel_mode1_completed,
49188 };
49189
49190 static struct access_method SA5_ioaccel_mode2_access = {
49191 - SA5_submit_command_ioaccel2,
49192 - SA5_performant_intr_mask,
49193 - SA5_fifo_full,
49194 - SA5_performant_intr_pending,
49195 - SA5_performant_completed,
49196 + .submit_command = SA5_submit_command_ioaccel2,
49197 + .set_intr_mask = SA5_performant_intr_mask,
49198 + .fifo_full = SA5_fifo_full,
49199 + .intr_pending = SA5_performant_intr_pending,
49200 + .command_completed = SA5_performant_completed,
49201 };
49202
49203 static struct access_method SA5_performant_access = {
49204 - SA5_submit_command,
49205 - SA5_performant_intr_mask,
49206 - SA5_fifo_full,
49207 - SA5_performant_intr_pending,
49208 - SA5_performant_completed,
49209 + .submit_command = SA5_submit_command,
49210 + .set_intr_mask = SA5_performant_intr_mask,
49211 + .fifo_full = SA5_fifo_full,
49212 + .intr_pending = SA5_performant_intr_pending,
49213 + .command_completed = SA5_performant_completed,
49214 };
49215
49216 struct board_type {
49217 diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
49218 index 1b3a094..068e683 100644
49219 --- a/drivers/scsi/libfc/fc_exch.c
49220 +++ b/drivers/scsi/libfc/fc_exch.c
49221 @@ -101,12 +101,12 @@ struct fc_exch_mgr {
49222 u16 pool_max_index;
49223
49224 struct {
49225 - atomic_t no_free_exch;
49226 - atomic_t no_free_exch_xid;
49227 - atomic_t xid_not_found;
49228 - atomic_t xid_busy;
49229 - atomic_t seq_not_found;
49230 - atomic_t non_bls_resp;
49231 + atomic_unchecked_t no_free_exch;
49232 + atomic_unchecked_t no_free_exch_xid;
49233 + atomic_unchecked_t xid_not_found;
49234 + atomic_unchecked_t xid_busy;
49235 + atomic_unchecked_t seq_not_found;
49236 + atomic_unchecked_t non_bls_resp;
49237 } stats;
49238 };
49239
49240 @@ -811,7 +811,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
49241 /* allocate memory for exchange */
49242 ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
49243 if (!ep) {
49244 - atomic_inc(&mp->stats.no_free_exch);
49245 + atomic_inc_unchecked(&mp->stats.no_free_exch);
49246 goto out;
49247 }
49248 memset(ep, 0, sizeof(*ep));
49249 @@ -874,7 +874,7 @@ out:
49250 return ep;
49251 err:
49252 spin_unlock_bh(&pool->lock);
49253 - atomic_inc(&mp->stats.no_free_exch_xid);
49254 + atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
49255 mempool_free(ep, mp->ep_pool);
49256 return NULL;
49257 }
49258 @@ -1023,7 +1023,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
49259 xid = ntohs(fh->fh_ox_id); /* we originated exch */
49260 ep = fc_exch_find(mp, xid);
49261 if (!ep) {
49262 - atomic_inc(&mp->stats.xid_not_found);
49263 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49264 reject = FC_RJT_OX_ID;
49265 goto out;
49266 }
49267 @@ -1053,7 +1053,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
49268 ep = fc_exch_find(mp, xid);
49269 if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
49270 if (ep) {
49271 - atomic_inc(&mp->stats.xid_busy);
49272 + atomic_inc_unchecked(&mp->stats.xid_busy);
49273 reject = FC_RJT_RX_ID;
49274 goto rel;
49275 }
49276 @@ -1064,7 +1064,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
49277 }
49278 xid = ep->xid; /* get our XID */
49279 } else if (!ep) {
49280 - atomic_inc(&mp->stats.xid_not_found);
49281 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49282 reject = FC_RJT_RX_ID; /* XID not found */
49283 goto out;
49284 }
49285 @@ -1082,7 +1082,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
49286 } else {
49287 sp = &ep->seq;
49288 if (sp->id != fh->fh_seq_id) {
49289 - atomic_inc(&mp->stats.seq_not_found);
49290 + atomic_inc_unchecked(&mp->stats.seq_not_found);
49291 if (f_ctl & FC_FC_END_SEQ) {
49292 /*
49293 * Update sequence_id based on incoming last
49294 @@ -1533,22 +1533,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
49295
49296 ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
49297 if (!ep) {
49298 - atomic_inc(&mp->stats.xid_not_found);
49299 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49300 goto out;
49301 }
49302 if (ep->esb_stat & ESB_ST_COMPLETE) {
49303 - atomic_inc(&mp->stats.xid_not_found);
49304 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49305 goto rel;
49306 }
49307 if (ep->rxid == FC_XID_UNKNOWN)
49308 ep->rxid = ntohs(fh->fh_rx_id);
49309 if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
49310 - atomic_inc(&mp->stats.xid_not_found);
49311 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49312 goto rel;
49313 }
49314 if (ep->did != ntoh24(fh->fh_s_id) &&
49315 ep->did != FC_FID_FLOGI) {
49316 - atomic_inc(&mp->stats.xid_not_found);
49317 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49318 goto rel;
49319 }
49320 sof = fr_sof(fp);
49321 @@ -1557,7 +1557,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
49322 sp->ssb_stat |= SSB_ST_RESP;
49323 sp->id = fh->fh_seq_id;
49324 } else if (sp->id != fh->fh_seq_id) {
49325 - atomic_inc(&mp->stats.seq_not_found);
49326 + atomic_inc_unchecked(&mp->stats.seq_not_found);
49327 goto rel;
49328 }
49329
49330 @@ -1619,9 +1619,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
49331 sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */
49332
49333 if (!sp)
49334 - atomic_inc(&mp->stats.xid_not_found);
49335 + atomic_inc_unchecked(&mp->stats.xid_not_found);
49336 else
49337 - atomic_inc(&mp->stats.non_bls_resp);
49338 + atomic_inc_unchecked(&mp->stats.non_bls_resp);
49339
49340 fc_frame_free(fp);
49341 }
49342 @@ -2261,13 +2261,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
49343
49344 list_for_each_entry(ema, &lport->ema_list, ema_list) {
49345 mp = ema->mp;
49346 - st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
49347 + st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
49348 st->fc_no_free_exch_xid +=
49349 - atomic_read(&mp->stats.no_free_exch_xid);
49350 - st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
49351 - st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
49352 - st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
49353 - st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
49354 + atomic_read_unchecked(&mp->stats.no_free_exch_xid);
49355 + st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
49356 + st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
49357 + st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
49358 + st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
49359 }
49360 }
49361 EXPORT_SYMBOL(fc_exch_update_stats);
49362 diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
49363 index 766098a..1c6c971 100644
49364 --- a/drivers/scsi/libsas/sas_ata.c
49365 +++ b/drivers/scsi/libsas/sas_ata.c
49366 @@ -554,7 +554,7 @@ static struct ata_port_operations sas_sata_ops = {
49367 .postreset = ata_std_postreset,
49368 .error_handler = ata_std_error_handler,
49369 .post_internal_cmd = sas_ata_post_internal,
49370 - .qc_defer = ata_std_qc_defer,
49371 + .qc_defer = ata_std_qc_defer,
49372 .qc_prep = ata_noop_qc_prep,
49373 .qc_issue = sas_ata_qc_issue,
49374 .qc_fill_rtf = sas_ata_qc_fill_rtf,
49375 diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
49376 index 94a3caf..a118dec 100644
49377 --- a/drivers/scsi/lpfc/lpfc.h
49378 +++ b/drivers/scsi/lpfc/lpfc.h
49379 @@ -430,7 +430,7 @@ struct lpfc_vport {
49380 struct dentry *debug_nodelist;
49381 struct dentry *vport_debugfs_root;
49382 struct lpfc_debugfs_trc *disc_trc;
49383 - atomic_t disc_trc_cnt;
49384 + atomic_unchecked_t disc_trc_cnt;
49385 #endif
49386 uint8_t stat_data_enabled;
49387 uint8_t stat_data_blocked;
49388 @@ -879,8 +879,8 @@ struct lpfc_hba {
49389 struct timer_list fabric_block_timer;
49390 unsigned long bit_flags;
49391 #define FABRIC_COMANDS_BLOCKED 0
49392 - atomic_t num_rsrc_err;
49393 - atomic_t num_cmd_success;
49394 + atomic_unchecked_t num_rsrc_err;
49395 + atomic_unchecked_t num_cmd_success;
49396 unsigned long last_rsrc_error_time;
49397 unsigned long last_ramp_down_time;
49398 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
49399 @@ -915,7 +915,7 @@ struct lpfc_hba {
49400
49401 struct dentry *debug_slow_ring_trc;
49402 struct lpfc_debugfs_trc *slow_ring_trc;
49403 - atomic_t slow_ring_trc_cnt;
49404 + atomic_unchecked_t slow_ring_trc_cnt;
49405 /* iDiag debugfs sub-directory */
49406 struct dentry *idiag_root;
49407 struct dentry *idiag_pci_cfg;
49408 diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
49409 index 828c08e..e3378e0 100644
49410 --- a/drivers/scsi/lpfc/lpfc_debugfs.c
49411 +++ b/drivers/scsi/lpfc/lpfc_debugfs.c
49412 @@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
49413
49414 #include <linux/debugfs.h>
49415
49416 -static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
49417 +static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
49418 static unsigned long lpfc_debugfs_start_time = 0L;
49419
49420 /* iDiag */
49421 @@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
49422 lpfc_debugfs_enable = 0;
49423
49424 len = 0;
49425 - index = (atomic_read(&vport->disc_trc_cnt) + 1) &
49426 + index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
49427 (lpfc_debugfs_max_disc_trc - 1);
49428 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
49429 dtp = vport->disc_trc + i;
49430 @@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
49431 lpfc_debugfs_enable = 0;
49432
49433 len = 0;
49434 - index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
49435 + index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
49436 (lpfc_debugfs_max_slow_ring_trc - 1);
49437 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
49438 dtp = phba->slow_ring_trc + i;
49439 @@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
49440 !vport || !vport->disc_trc)
49441 return;
49442
49443 - index = atomic_inc_return(&vport->disc_trc_cnt) &
49444 + index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
49445 (lpfc_debugfs_max_disc_trc - 1);
49446 dtp = vport->disc_trc + index;
49447 dtp->fmt = fmt;
49448 dtp->data1 = data1;
49449 dtp->data2 = data2;
49450 dtp->data3 = data3;
49451 - dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
49452 + dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
49453 dtp->jif = jiffies;
49454 #endif
49455 return;
49456 @@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
49457 !phba || !phba->slow_ring_trc)
49458 return;
49459
49460 - index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
49461 + index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
49462 (lpfc_debugfs_max_slow_ring_trc - 1);
49463 dtp = phba->slow_ring_trc + index;
49464 dtp->fmt = fmt;
49465 dtp->data1 = data1;
49466 dtp->data2 = data2;
49467 dtp->data3 = data3;
49468 - dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
49469 + dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
49470 dtp->jif = jiffies;
49471 #endif
49472 return;
49473 @@ -4268,7 +4268,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
49474 "slow_ring buffer\n");
49475 goto debug_failed;
49476 }
49477 - atomic_set(&phba->slow_ring_trc_cnt, 0);
49478 + atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
49479 memset(phba->slow_ring_trc, 0,
49480 (sizeof(struct lpfc_debugfs_trc) *
49481 lpfc_debugfs_max_slow_ring_trc));
49482 @@ -4314,7 +4314,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
49483 "buffer\n");
49484 goto debug_failed;
49485 }
49486 - atomic_set(&vport->disc_trc_cnt, 0);
49487 + atomic_set_unchecked(&vport->disc_trc_cnt, 0);
49488
49489 snprintf(name, sizeof(name), "discovery_trace");
49490 vport->debug_disc_trc =
49491 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
49492 index 635eeb3..038aef6 100644
49493 --- a/drivers/scsi/lpfc/lpfc_init.c
49494 +++ b/drivers/scsi/lpfc/lpfc_init.c
49495 @@ -11194,8 +11194,10 @@ lpfc_init(void)
49496 "misc_register returned with status %d", error);
49497
49498 if (lpfc_enable_npiv) {
49499 - lpfc_transport_functions.vport_create = lpfc_vport_create;
49500 - lpfc_transport_functions.vport_delete = lpfc_vport_delete;
49501 + pax_open_kernel();
49502 + *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
49503 + *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
49504 + pax_close_kernel();
49505 }
49506 lpfc_transport_template =
49507 fc_attach_transport(&lpfc_transport_functions);
49508 diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
49509 index 462453e..c0023a6 100644
49510 --- a/drivers/scsi/lpfc/lpfc_scsi.c
49511 +++ b/drivers/scsi/lpfc/lpfc_scsi.c
49512 @@ -382,7 +382,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
49513 uint32_t evt_posted;
49514
49515 spin_lock_irqsave(&phba->hbalock, flags);
49516 - atomic_inc(&phba->num_rsrc_err);
49517 + atomic_inc_unchecked(&phba->num_rsrc_err);
49518 phba->last_rsrc_error_time = jiffies;
49519
49520 if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) {
49521 @@ -423,8 +423,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
49522 unsigned long num_rsrc_err, num_cmd_success;
49523 int i;
49524
49525 - num_rsrc_err = atomic_read(&phba->num_rsrc_err);
49526 - num_cmd_success = atomic_read(&phba->num_cmd_success);
49527 + num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
49528 + num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
49529
49530 /*
49531 * The error and success command counters are global per
49532 @@ -452,8 +452,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
49533 }
49534 }
49535 lpfc_destroy_vport_work_array(phba, vports);
49536 - atomic_set(&phba->num_rsrc_err, 0);
49537 - atomic_set(&phba->num_cmd_success, 0);
49538 + atomic_set_unchecked(&phba->num_rsrc_err, 0);
49539 + atomic_set_unchecked(&phba->num_cmd_success, 0);
49540 }
49541
49542 /**
49543 diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
49544 index 6fd7d40..b444223 100644
49545 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
49546 +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
49547 @@ -1557,7 +1557,7 @@ _scsih_get_resync(struct device *dev)
49548 {
49549 struct scsi_device *sdev = to_scsi_device(dev);
49550 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
49551 - static struct _raid_device *raid_device;
49552 + struct _raid_device *raid_device;
49553 unsigned long flags;
49554 Mpi2RaidVolPage0_t vol_pg0;
49555 Mpi2ConfigReply_t mpi_reply;
49556 @@ -1609,7 +1609,7 @@ _scsih_get_state(struct device *dev)
49557 {
49558 struct scsi_device *sdev = to_scsi_device(dev);
49559 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
49560 - static struct _raid_device *raid_device;
49561 + struct _raid_device *raid_device;
49562 unsigned long flags;
49563 Mpi2RaidVolPage0_t vol_pg0;
49564 Mpi2ConfigReply_t mpi_reply;
49565 @@ -6637,7 +6637,7 @@ _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
49566 struct fw_event_work *fw_event)
49567 {
49568 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
49569 - static struct _raid_device *raid_device;
49570 + struct _raid_device *raid_device;
49571 unsigned long flags;
49572 u16 handle;
49573
49574 @@ -7108,7 +7108,7 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
49575 u64 sas_address;
49576 struct _sas_device *sas_device;
49577 struct _sas_node *expander_device;
49578 - static struct _raid_device *raid_device;
49579 + struct _raid_device *raid_device;
49580 u8 retry_count;
49581 unsigned long flags;
49582
49583 diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
49584 index be8ce54..94ed33a 100644
49585 --- a/drivers/scsi/pmcraid.c
49586 +++ b/drivers/scsi/pmcraid.c
49587 @@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
49588 res->scsi_dev = scsi_dev;
49589 scsi_dev->hostdata = res;
49590 res->change_detected = 0;
49591 - atomic_set(&res->read_failures, 0);
49592 - atomic_set(&res->write_failures, 0);
49593 + atomic_set_unchecked(&res->read_failures, 0);
49594 + atomic_set_unchecked(&res->write_failures, 0);
49595 rc = 0;
49596 }
49597 spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
49598 @@ -2687,9 +2687,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
49599
49600 /* If this was a SCSI read/write command keep count of errors */
49601 if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
49602 - atomic_inc(&res->read_failures);
49603 + atomic_inc_unchecked(&res->read_failures);
49604 else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
49605 - atomic_inc(&res->write_failures);
49606 + atomic_inc_unchecked(&res->write_failures);
49607
49608 if (!RES_IS_GSCSI(res->cfg_entry) &&
49609 masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
49610 @@ -3545,7 +3545,7 @@ static int pmcraid_queuecommand_lck(
49611 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
49612 * hrrq_id assigned here in queuecommand
49613 */
49614 - ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
49615 + ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
49616 pinstance->num_hrrq;
49617 cmd->cmd_done = pmcraid_io_done;
49618
49619 @@ -3857,7 +3857,7 @@ static long pmcraid_ioctl_passthrough(
49620 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
49621 * hrrq_id assigned here in queuecommand
49622 */
49623 - ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
49624 + ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
49625 pinstance->num_hrrq;
49626
49627 if (request_size) {
49628 @@ -4495,7 +4495,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
49629
49630 pinstance = container_of(workp, struct pmcraid_instance, worker_q);
49631 /* add resources only after host is added into system */
49632 - if (!atomic_read(&pinstance->expose_resources))
49633 + if (!atomic_read_unchecked(&pinstance->expose_resources))
49634 return;
49635
49636 fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
49637 @@ -5322,8 +5322,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
49638 init_waitqueue_head(&pinstance->reset_wait_q);
49639
49640 atomic_set(&pinstance->outstanding_cmds, 0);
49641 - atomic_set(&pinstance->last_message_id, 0);
49642 - atomic_set(&pinstance->expose_resources, 0);
49643 + atomic_set_unchecked(&pinstance->last_message_id, 0);
49644 + atomic_set_unchecked(&pinstance->expose_resources, 0);
49645
49646 INIT_LIST_HEAD(&pinstance->free_res_q);
49647 INIT_LIST_HEAD(&pinstance->used_res_q);
49648 @@ -6036,7 +6036,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
49649 /* Schedule worker thread to handle CCN and take care of adding and
49650 * removing devices to OS
49651 */
49652 - atomic_set(&pinstance->expose_resources, 1);
49653 + atomic_set_unchecked(&pinstance->expose_resources, 1);
49654 schedule_work(&pinstance->worker_q);
49655 return rc;
49656
49657 diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
49658 index e1d150f..6c6df44 100644
49659 --- a/drivers/scsi/pmcraid.h
49660 +++ b/drivers/scsi/pmcraid.h
49661 @@ -748,7 +748,7 @@ struct pmcraid_instance {
49662 struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
49663
49664 /* Message id as filled in last fired IOARCB, used to identify HRRQ */
49665 - atomic_t last_message_id;
49666 + atomic_unchecked_t last_message_id;
49667
49668 /* configuration table */
49669 struct pmcraid_config_table *cfg_table;
49670 @@ -777,7 +777,7 @@ struct pmcraid_instance {
49671 atomic_t outstanding_cmds;
49672
49673 /* should add/delete resources to mid-layer now ?*/
49674 - atomic_t expose_resources;
49675 + atomic_unchecked_t expose_resources;
49676
49677
49678
49679 @@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
49680 struct pmcraid_config_table_entry_ext cfg_entry_ext;
49681 };
49682 struct scsi_device *scsi_dev; /* Link scsi_device structure */
49683 - atomic_t read_failures; /* count of failed READ commands */
49684 - atomic_t write_failures; /* count of failed WRITE commands */
49685 + atomic_unchecked_t read_failures; /* count of failed READ commands */
49686 + atomic_unchecked_t write_failures; /* count of failed WRITE commands */
49687
49688 /* To indicate add/delete/modify during CCN */
49689 u8 change_detected;
49690 diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
49691 index 07befcf..c0bff13 100644
49692 --- a/drivers/scsi/qla2xxx/qla_attr.c
49693 +++ b/drivers/scsi/qla2xxx/qla_attr.c
49694 @@ -2188,7 +2188,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
49695 return 0;
49696 }
49697
49698 -struct fc_function_template qla2xxx_transport_functions = {
49699 +fc_function_template_no_const qla2xxx_transport_functions = {
49700
49701 .show_host_node_name = 1,
49702 .show_host_port_name = 1,
49703 @@ -2236,7 +2236,7 @@ struct fc_function_template qla2xxx_transport_functions = {
49704 .bsg_timeout = qla24xx_bsg_timeout,
49705 };
49706
49707 -struct fc_function_template qla2xxx_transport_vport_functions = {
49708 +fc_function_template_no_const qla2xxx_transport_vport_functions = {
49709
49710 .show_host_node_name = 1,
49711 .show_host_port_name = 1,
49712 diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
49713 index e665e81..16e84e6 100644
49714 --- a/drivers/scsi/qla2xxx/qla_gbl.h
49715 +++ b/drivers/scsi/qla2xxx/qla_gbl.h
49716 @@ -557,8 +557,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *);
49717 struct device_attribute;
49718 extern struct device_attribute *qla2x00_host_attrs[];
49719 struct fc_function_template;
49720 -extern struct fc_function_template qla2xxx_transport_functions;
49721 -extern struct fc_function_template qla2xxx_transport_vport_functions;
49722 +extern fc_function_template_no_const qla2xxx_transport_functions;
49723 +extern fc_function_template_no_const qla2xxx_transport_vport_functions;
49724 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
49725 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
49726 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
49727 diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
49728 index 19e99cc..b3c0b7b 100644
49729 --- a/drivers/scsi/qla2xxx/qla_os.c
49730 +++ b/drivers/scsi/qla2xxx/qla_os.c
49731 @@ -1493,8 +1493,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
49732 !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
49733 /* Ok, a 64bit DMA mask is applicable. */
49734 ha->flags.enable_64bit_addressing = 1;
49735 - ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
49736 - ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
49737 + pax_open_kernel();
49738 + *(void **)&ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
49739 + *(void **)&ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
49740 + pax_close_kernel();
49741 return;
49742 }
49743 }
49744 diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
49745 index 73a5022..4e0797c 100644
49746 --- a/drivers/scsi/qla4xxx/ql4_def.h
49747 +++ b/drivers/scsi/qla4xxx/ql4_def.h
49748 @@ -305,7 +305,7 @@ struct ddb_entry {
49749 * (4000 only) */
49750 atomic_t relogin_timer; /* Max Time to wait for
49751 * relogin to complete */
49752 - atomic_t relogin_retry_count; /* Num of times relogin has been
49753 + atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been
49754 * retried */
49755 uint32_t default_time2wait; /* Default Min time between
49756 * relogins (+aens) */
49757 diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
49758 index 459b9f7..2930a68 100644
49759 --- a/drivers/scsi/qla4xxx/ql4_os.c
49760 +++ b/drivers/scsi/qla4xxx/ql4_os.c
49761 @@ -4499,12 +4499,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
49762 */
49763 if (!iscsi_is_session_online(cls_sess)) {
49764 /* Reset retry relogin timer */
49765 - atomic_inc(&ddb_entry->relogin_retry_count);
49766 + atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
49767 DEBUG2(ql4_printk(KERN_INFO, ha,
49768 "%s: index[%d] relogin timed out-retrying"
49769 " relogin (%d), retry (%d)\n", __func__,
49770 ddb_entry->fw_ddb_index,
49771 - atomic_read(&ddb_entry->relogin_retry_count),
49772 + atomic_read_unchecked(&ddb_entry->relogin_retry_count),
49773 ddb_entry->default_time2wait + 4));
49774 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
49775 atomic_set(&ddb_entry->retry_relogin_timer,
49776 @@ -6609,7 +6609,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
49777
49778 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
49779 atomic_set(&ddb_entry->relogin_timer, 0);
49780 - atomic_set(&ddb_entry->relogin_retry_count, 0);
49781 + atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
49782 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
49783 ddb_entry->default_relogin_timeout =
49784 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
49785 diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
49786 index 88d46fe..7351be5 100644
49787 --- a/drivers/scsi/scsi.c
49788 +++ b/drivers/scsi/scsi.c
49789 @@ -640,7 +640,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
49790 struct Scsi_Host *host = cmd->device->host;
49791 int rtn = 0;
49792
49793 - atomic_inc(&cmd->device->iorequest_cnt);
49794 + atomic_inc_unchecked(&cmd->device->iorequest_cnt);
49795
49796 /* check if the device is still usable */
49797 if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
49798 diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
49799 index 9db097a..ca5c291 100644
49800 --- a/drivers/scsi/scsi_lib.c
49801 +++ b/drivers/scsi/scsi_lib.c
49802 @@ -1464,7 +1464,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
49803 shost = sdev->host;
49804 scsi_init_cmd_errh(cmd);
49805 cmd->result = DID_NO_CONNECT << 16;
49806 - atomic_inc(&cmd->device->iorequest_cnt);
49807 + atomic_inc_unchecked(&cmd->device->iorequest_cnt);
49808
49809 /*
49810 * SCSI request completion path will do scsi_device_unbusy(),
49811 @@ -1490,9 +1490,9 @@ static void scsi_softirq_done(struct request *rq)
49812
49813 INIT_LIST_HEAD(&cmd->eh_entry);
49814
49815 - atomic_inc(&cmd->device->iodone_cnt);
49816 + atomic_inc_unchecked(&cmd->device->iodone_cnt);
49817 if (cmd->result)
49818 - atomic_inc(&cmd->device->ioerr_cnt);
49819 + atomic_inc_unchecked(&cmd->device->ioerr_cnt);
49820
49821 disposition = scsi_decide_disposition(cmd);
49822 if (disposition != SUCCESS &&
49823 diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
49824 index 074e8cc..f612e5c 100644
49825 --- a/drivers/scsi/scsi_sysfs.c
49826 +++ b/drivers/scsi/scsi_sysfs.c
49827 @@ -780,7 +780,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \
49828 char *buf) \
49829 { \
49830 struct scsi_device *sdev = to_scsi_device(dev); \
49831 - unsigned long long count = atomic_read(&sdev->field); \
49832 + unsigned long long count = atomic_read_unchecked(&sdev->field); \
49833 return snprintf(buf, 20, "0x%llx\n", count); \
49834 } \
49835 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
49836 diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
49837 index e51add0..1e06a96 100644
49838 --- a/drivers/scsi/scsi_tgt_lib.c
49839 +++ b/drivers/scsi/scsi_tgt_lib.c
49840 @@ -363,7 +363,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
49841 int err;
49842
49843 dprintk("%lx %u\n", uaddr, len);
49844 - err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL);
49845 + err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL);
49846 if (err) {
49847 /*
49848 * TODO: need to fixup sg_tablesize, max_segment_size,
49849 diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
49850 index f80908f..22aba76 100644
49851 --- a/drivers/scsi/scsi_transport_fc.c
49852 +++ b/drivers/scsi/scsi_transport_fc.c
49853 @@ -498,7 +498,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
49854 * Netlink Infrastructure
49855 */
49856
49857 -static atomic_t fc_event_seq;
49858 +static atomic_unchecked_t fc_event_seq;
49859
49860 /**
49861 * fc_get_event_number - Obtain the next sequential FC event number
49862 @@ -511,7 +511,7 @@ static atomic_t fc_event_seq;
49863 u32
49864 fc_get_event_number(void)
49865 {
49866 - return atomic_add_return(1, &fc_event_seq);
49867 + return atomic_add_return_unchecked(1, &fc_event_seq);
49868 }
49869 EXPORT_SYMBOL(fc_get_event_number);
49870
49871 @@ -655,7 +655,7 @@ static __init int fc_transport_init(void)
49872 {
49873 int error;
49874
49875 - atomic_set(&fc_event_seq, 0);
49876 + atomic_set_unchecked(&fc_event_seq, 0);
49877
49878 error = transport_class_register(&fc_host_class);
49879 if (error)
49880 @@ -845,7 +845,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
49881 char *cp;
49882
49883 *val = simple_strtoul(buf, &cp, 0);
49884 - if ((*cp && (*cp != '\n')) || (*val < 0))
49885 + if (*cp && (*cp != '\n'))
49886 return -EINVAL;
49887 /*
49888 * Check for overflow; dev_loss_tmo is u32
49889 diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
49890 index 0102a2d..cc3f8e9 100644
49891 --- a/drivers/scsi/scsi_transport_iscsi.c
49892 +++ b/drivers/scsi/scsi_transport_iscsi.c
49893 @@ -79,7 +79,7 @@ struct iscsi_internal {
49894 struct transport_container session_cont;
49895 };
49896
49897 -static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
49898 +static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
49899 static struct workqueue_struct *iscsi_eh_timer_workq;
49900
49901 static DEFINE_IDA(iscsi_sess_ida);
49902 @@ -2071,7 +2071,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
49903 int err;
49904
49905 ihost = shost->shost_data;
49906 - session->sid = atomic_add_return(1, &iscsi_session_nr);
49907 + session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
49908
49909 if (target_id == ISCSI_MAX_TARGET) {
49910 id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
49911 @@ -4511,7 +4511,7 @@ static __init int iscsi_transport_init(void)
49912 printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
49913 ISCSI_TRANSPORT_VERSION);
49914
49915 - atomic_set(&iscsi_session_nr, 0);
49916 + atomic_set_unchecked(&iscsi_session_nr, 0);
49917
49918 err = class_register(&iscsi_transport_class);
49919 if (err)
49920 diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
49921 index 13e8983..d306a68 100644
49922 --- a/drivers/scsi/scsi_transport_srp.c
49923 +++ b/drivers/scsi/scsi_transport_srp.c
49924 @@ -36,7 +36,7 @@
49925 #include "scsi_transport_srp_internal.h"
49926
49927 struct srp_host_attrs {
49928 - atomic_t next_port_id;
49929 + atomic_unchecked_t next_port_id;
49930 };
49931 #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
49932
49933 @@ -101,7 +101,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
49934 struct Scsi_Host *shost = dev_to_shost(dev);
49935 struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
49936
49937 - atomic_set(&srp_host->next_port_id, 0);
49938 + atomic_set_unchecked(&srp_host->next_port_id, 0);
49939 return 0;
49940 }
49941
49942 @@ -734,7 +734,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
49943 rport_fast_io_fail_timedout);
49944 INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
49945
49946 - id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
49947 + id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
49948 dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
49949
49950 transport_setup_device(&rport->dev);
49951 diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
49952 index bffbd4b..cb1b68a 100644
49953 --- a/drivers/scsi/sd.c
49954 +++ b/drivers/scsi/sd.c
49955 @@ -2971,7 +2971,7 @@ static int sd_probe(struct device *dev)
49956 sdkp->disk = gd;
49957 sdkp->index = index;
49958 atomic_set(&sdkp->openers, 0);
49959 - atomic_set(&sdkp->device->ioerr_cnt, 0);
49960 + atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
49961
49962 if (!sdp->request_queue->rq_timeout) {
49963 if (sdp->type != TYPE_MOD)
49964 diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
49965 index df5e961..df6b97f 100644
49966 --- a/drivers/scsi/sg.c
49967 +++ b/drivers/scsi/sg.c
49968 @@ -1102,7 +1102,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
49969 sdp->disk->disk_name,
49970 MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
49971 NULL,
49972 - (char *)arg);
49973 + (char __user *)arg);
49974 case BLKTRACESTART:
49975 return blk_trace_startstop(sdp->device->request_queue, 1);
49976 case BLKTRACESTOP:
49977 diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
49978 index 939edf4..3f50423 100644
49979 --- a/drivers/spi/spi.c
49980 +++ b/drivers/spi/spi.c
49981 @@ -2204,7 +2204,7 @@ int spi_bus_unlock(struct spi_master *master)
49982 EXPORT_SYMBOL_GPL(spi_bus_unlock);
49983
49984 /* portable code must never pass more than 32 bytes */
49985 -#define SPI_BUFSIZ max(32, SMP_CACHE_BYTES)
49986 +#define SPI_BUFSIZ max(32UL, SMP_CACHE_BYTES)
49987
49988 static u8 *buf;
49989
49990 diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
49991 index 2c61783..4d49e4e 100644
49992 --- a/drivers/staging/android/timed_output.c
49993 +++ b/drivers/staging/android/timed_output.c
49994 @@ -25,7 +25,7 @@
49995 #include "timed_output.h"
49996
49997 static struct class *timed_output_class;
49998 -static atomic_t device_count;
49999 +static atomic_unchecked_t device_count;
50000
50001 static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
50002 char *buf)
50003 @@ -63,7 +63,7 @@ static int create_timed_output_class(void)
50004 timed_output_class = class_create(THIS_MODULE, "timed_output");
50005 if (IS_ERR(timed_output_class))
50006 return PTR_ERR(timed_output_class);
50007 - atomic_set(&device_count, 0);
50008 + atomic_set_unchecked(&device_count, 0);
50009 timed_output_class->dev_groups = timed_output_groups;
50010 }
50011
50012 @@ -81,7 +81,7 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
50013 if (ret < 0)
50014 return ret;
50015
50016 - tdev->index = atomic_inc_return(&device_count);
50017 + tdev->index = atomic_inc_return_unchecked(&device_count);
50018 tdev->dev = device_create(timed_output_class, NULL,
50019 MKDEV(0, tdev->index), NULL, "%s", tdev->name);
50020 if (IS_ERR(tdev->dev))
50021 diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
50022 index fe47cd3..19a1bd1 100644
50023 --- a/drivers/staging/gdm724x/gdm_tty.c
50024 +++ b/drivers/staging/gdm724x/gdm_tty.c
50025 @@ -44,7 +44,7 @@
50026 #define gdm_tty_send_control(n, r, v, d, l) (\
50027 n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
50028
50029 -#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
50030 +#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && atomic_read(&gdm->port.count))
50031
50032 static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
50033 static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
50034 diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
50035 index c270c9a..94ddf82 100644
50036 --- a/drivers/staging/imx-drm/imx-drm-core.c
50037 +++ b/drivers/staging/imx-drm/imx-drm-core.c
50038 @@ -362,7 +362,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
50039 if (imxdrm->pipes >= MAX_CRTC)
50040 return -EINVAL;
50041
50042 - if (imxdrm->drm->open_count)
50043 + if (local_read(&imxdrm->drm->open_count))
50044 return -EBUSY;
50045
50046 imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL);
50047 diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
50048 index 3f8020c..649fded 100644
50049 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c
50050 +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
50051 @@ -488,13 +488,11 @@ brw_server_handle(struct srpc_server_rpc *rpc)
50052 return 0;
50053 }
50054
50055 -sfw_test_client_ops_t brw_test_client;
50056 -void brw_init_test_client(void)
50057 -{
50058 - brw_test_client.tso_init = brw_client_init;
50059 - brw_test_client.tso_fini = brw_client_fini;
50060 - brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
50061 - brw_test_client.tso_done_rpc = brw_client_done_rpc;
50062 +sfw_test_client_ops_t brw_test_client = {
50063 + .tso_init = brw_client_init,
50064 + .tso_fini = brw_client_fini,
50065 + .tso_prep_rpc = brw_client_prep_rpc,
50066 + .tso_done_rpc = brw_client_done_rpc,
50067 };
50068
50069 srpc_service_t brw_test_service;
50070 diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
50071 index 050723a..fa6fdf1 100644
50072 --- a/drivers/staging/lustre/lnet/selftest/framework.c
50073 +++ b/drivers/staging/lustre/lnet/selftest/framework.c
50074 @@ -1635,12 +1635,10 @@ static srpc_service_t sfw_services[] =
50075
50076 extern sfw_test_client_ops_t ping_test_client;
50077 extern srpc_service_t ping_test_service;
50078 -extern void ping_init_test_client(void);
50079 extern void ping_init_test_service(void);
50080
50081 extern sfw_test_client_ops_t brw_test_client;
50082 extern srpc_service_t brw_test_service;
50083 -extern void brw_init_test_client(void);
50084 extern void brw_init_test_service(void);
50085
50086
50087 @@ -1684,12 +1682,10 @@ sfw_startup (void)
50088 INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
50089 INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
50090
50091 - brw_init_test_client();
50092 brw_init_test_service();
50093 rc = sfw_register_test(&brw_test_service, &brw_test_client);
50094 LASSERT (rc == 0);
50095
50096 - ping_init_test_client();
50097 ping_init_test_service();
50098 rc = sfw_register_test(&ping_test_service, &ping_test_client);
50099 LASSERT (rc == 0);
50100 diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
50101 index 750cac4..e4d751f 100644
50102 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c
50103 +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
50104 @@ -211,14 +211,12 @@ ping_server_handle(struct srpc_server_rpc *rpc)
50105 return 0;
50106 }
50107
50108 -sfw_test_client_ops_t ping_test_client;
50109 -void ping_init_test_client(void)
50110 -{
50111 - ping_test_client.tso_init = ping_client_init;
50112 - ping_test_client.tso_fini = ping_client_fini;
50113 - ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
50114 - ping_test_client.tso_done_rpc = ping_client_done_rpc;
50115 -}
50116 +sfw_test_client_ops_t ping_test_client = {
50117 + .tso_init = ping_client_init,
50118 + .tso_fini = ping_client_fini,
50119 + .tso_prep_rpc = ping_client_prep_rpc,
50120 + .tso_done_rpc = ping_client_done_rpc,
50121 +};
50122
50123 srpc_service_t ping_test_service;
50124 void ping_init_test_service(void)
50125 diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
50126 index 3e25f00..0d59cf5 100644
50127 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
50128 +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
50129 @@ -1141,7 +1141,7 @@ struct ldlm_callback_suite {
50130 ldlm_completion_callback lcs_completion;
50131 ldlm_blocking_callback lcs_blocking;
50132 ldlm_glimpse_callback lcs_glimpse;
50133 -};
50134 +} __no_const;
50135
50136 /* ldlm_lockd.c */
50137 int ldlm_del_waiting_lock(struct ldlm_lock *lock);
50138 diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
50139 index 72cf3fe..4beac19 100644
50140 --- a/drivers/staging/lustre/lustre/include/obd.h
50141 +++ b/drivers/staging/lustre/lustre/include/obd.h
50142 @@ -1427,7 +1427,7 @@ struct md_ops {
50143 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
50144 * wrapper function in include/linux/obd_class.h.
50145 */
50146 -};
50147 +} __no_const;
50148
50149 struct lsm_operations {
50150 void (*lsm_free)(struct lov_stripe_md *);
50151 diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
50152 index 986bf38..eab2558f 100644
50153 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
50154 +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
50155 @@ -259,7 +259,7 @@ ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags, int first_enq,
50156 int added = (mode == LCK_NL);
50157 int overlaps = 0;
50158 int splitted = 0;
50159 - const struct ldlm_callback_suite null_cbs = { NULL };
50160 + const struct ldlm_callback_suite null_cbs = { };
50161
50162 CDEBUG(D_DLMTRACE, "flags %#llx owner "LPU64" pid %u mode %u start "
50163 LPU64" end "LPU64"\n", *flags,
50164 diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
50165 index e947b91..f408990 100644
50166 --- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
50167 +++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
50168 @@ -217,7 +217,7 @@ DECLARE_PROC_HANDLER(proc_debug_mb)
50169 int LL_PROC_PROTO(proc_console_max_delay_cs)
50170 {
50171 int rc, max_delay_cs;
50172 - ctl_table_t dummy = *table;
50173 + ctl_table_no_const dummy = *table;
50174 cfs_duration_t d;
50175
50176 dummy.data = &max_delay_cs;
50177 @@ -248,7 +248,7 @@ int LL_PROC_PROTO(proc_console_max_delay_cs)
50178 int LL_PROC_PROTO(proc_console_min_delay_cs)
50179 {
50180 int rc, min_delay_cs;
50181 - ctl_table_t dummy = *table;
50182 + ctl_table_no_const dummy = *table;
50183 cfs_duration_t d;
50184
50185 dummy.data = &min_delay_cs;
50186 @@ -279,7 +279,7 @@ int LL_PROC_PROTO(proc_console_min_delay_cs)
50187 int LL_PROC_PROTO(proc_console_backoff)
50188 {
50189 int rc, backoff;
50190 - ctl_table_t dummy = *table;
50191 + ctl_table_no_const dummy = *table;
50192
50193 dummy.data = &backoff;
50194 dummy.proc_handler = &proc_dointvec;
50195 diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
50196 index 24ae26d..9d09cab 100644
50197 --- a/drivers/staging/lustre/lustre/libcfs/module.c
50198 +++ b/drivers/staging/lustre/lustre/libcfs/module.c
50199 @@ -313,11 +313,11 @@ out:
50200
50201
50202 struct cfs_psdev_ops libcfs_psdev_ops = {
50203 - libcfs_psdev_open,
50204 - libcfs_psdev_release,
50205 - NULL,
50206 - NULL,
50207 - libcfs_ioctl
50208 + .p_open = libcfs_psdev_open,
50209 + .p_close = libcfs_psdev_release,
50210 + .p_read = NULL,
50211 + .p_write = NULL,
50212 + .p_ioctl = libcfs_ioctl
50213 };
50214
50215 extern int insert_proc(void);
50216 diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
50217 index 7fbc18e..f982071 100644
50218 --- a/drivers/staging/lustre/lustre/llite/dir.c
50219 +++ b/drivers/staging/lustre/lustre/llite/dir.c
50220 @@ -660,7 +660,7 @@ int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
50221 int mode;
50222 int err;
50223
50224 - mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
50225 + mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current_umask()) | S_IFDIR;
50226 op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
50227 strlen(filename), mode, LUSTRE_OPC_MKDIR,
50228 lump);
50229 diff --git a/drivers/staging/media/solo6x10/solo6x10-core.c b/drivers/staging/media/solo6x10/solo6x10-core.c
50230 index f670469..03b7438 100644
50231 --- a/drivers/staging/media/solo6x10/solo6x10-core.c
50232 +++ b/drivers/staging/media/solo6x10/solo6x10-core.c
50233 @@ -434,7 +434,7 @@ static void solo_device_release(struct device *dev)
50234
50235 static int solo_sysfs_init(struct solo_dev *solo_dev)
50236 {
50237 - struct bin_attribute *sdram_attr = &solo_dev->sdram_attr;
50238 + bin_attribute_no_const *sdram_attr = &solo_dev->sdram_attr;
50239 struct device *dev = &solo_dev->dev;
50240 const char *driver;
50241 int i;
50242 diff --git a/drivers/staging/media/solo6x10/solo6x10-g723.c b/drivers/staging/media/solo6x10/solo6x10-g723.c
50243 index 74f037b..5b5bb76 100644
50244 --- a/drivers/staging/media/solo6x10/solo6x10-g723.c
50245 +++ b/drivers/staging/media/solo6x10/solo6x10-g723.c
50246 @@ -355,7 +355,7 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
50247
50248 int solo_g723_init(struct solo_dev *solo_dev)
50249 {
50250 - static struct snd_device_ops ops = { NULL };
50251 + static struct snd_device_ops ops = { };
50252 struct snd_card *card;
50253 struct snd_kcontrol_new kctl;
50254 char name[32];
50255 diff --git a/drivers/staging/media/solo6x10/solo6x10-p2m.c b/drivers/staging/media/solo6x10/solo6x10-p2m.c
50256 index 7f2f247..d999137 100644
50257 --- a/drivers/staging/media/solo6x10/solo6x10-p2m.c
50258 +++ b/drivers/staging/media/solo6x10/solo6x10-p2m.c
50259 @@ -77,7 +77,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
50260
50261 /* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
50262 if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
50263 - p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
50264 + p2m_id = atomic_inc_return_unchecked(&solo_dev->p2m_count) % SOLO_NR_P2M;
50265 if (p2m_id < 0)
50266 p2m_id = -p2m_id;
50267 }
50268 diff --git a/drivers/staging/media/solo6x10/solo6x10.h b/drivers/staging/media/solo6x10/solo6x10.h
50269 index 8964f8b..36eb087 100644
50270 --- a/drivers/staging/media/solo6x10/solo6x10.h
50271 +++ b/drivers/staging/media/solo6x10/solo6x10.h
50272 @@ -237,7 +237,7 @@ struct solo_dev {
50273
50274 /* P2M DMA Engine */
50275 struct solo_p2m_dev p2m_dev[SOLO_NR_P2M];
50276 - atomic_t p2m_count;
50277 + atomic_unchecked_t p2m_count;
50278 int p2m_jiffies;
50279 unsigned int p2m_timeouts;
50280
50281 diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
50282 index a0f4868..139f1fb 100644
50283 --- a/drivers/staging/octeon/ethernet-rx.c
50284 +++ b/drivers/staging/octeon/ethernet-rx.c
50285 @@ -417,11 +417,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
50286 /* Increment RX stats for virtual ports */
50287 if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
50288 #ifdef CONFIG_64BIT
50289 - atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets);
50290 - atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes);
50291 + atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets);
50292 + atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes);
50293 #else
50294 - atomic_add(1, (atomic_t *)&priv->stats.rx_packets);
50295 - atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes);
50296 + atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets);
50297 + atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes);
50298 #endif
50299 }
50300 netif_receive_skb(skb);
50301 @@ -432,9 +432,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
50302 dev->name);
50303 */
50304 #ifdef CONFIG_64BIT
50305 - atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped);
50306 + atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped);
50307 #else
50308 - atomic_add(1, (atomic_t *)&priv->stats.rx_dropped);
50309 + atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped);
50310 #endif
50311 dev_kfree_skb_irq(skb);
50312 }
50313 diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
50314 index ff7214a..6dd90f0 100644
50315 --- a/drivers/staging/octeon/ethernet.c
50316 +++ b/drivers/staging/octeon/ethernet.c
50317 @@ -247,11 +247,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
50318 * since the RX tasklet also increments it.
50319 */
50320 #ifdef CONFIG_64BIT
50321 - atomic64_add(rx_status.dropped_packets,
50322 - (atomic64_t *)&priv->stats.rx_dropped);
50323 + atomic64_add_unchecked(rx_status.dropped_packets,
50324 + (atomic64_unchecked_t *)&priv->stats.rx_dropped);
50325 #else
50326 - atomic_add(rx_status.dropped_packets,
50327 - (atomic_t *)&priv->stats.rx_dropped);
50328 + atomic_add_unchecked(rx_status.dropped_packets,
50329 + (atomic_unchecked_t *)&priv->stats.rx_dropped);
50330 #endif
50331 }
50332
50333 diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
50334 index c274b34..f84de76 100644
50335 --- a/drivers/staging/rtl8188eu/include/hal_intf.h
50336 +++ b/drivers/staging/rtl8188eu/include/hal_intf.h
50337 @@ -271,7 +271,7 @@ struct hal_ops {
50338 s32 (*c2h_handler)(struct adapter *padapter,
50339 struct c2h_evt_hdr *c2h_evt);
50340 c2h_id_filter c2h_id_filter_ccx;
50341 -};
50342 +} __no_const;
50343
50344 enum rt_eeprom_type {
50345 EEPROM_93C46,
50346 diff --git a/drivers/staging/rtl8188eu/include/rtw_io.h b/drivers/staging/rtl8188eu/include/rtw_io.h
50347 index e8790f8..b4a5980 100644
50348 --- a/drivers/staging/rtl8188eu/include/rtw_io.h
50349 +++ b/drivers/staging/rtl8188eu/include/rtw_io.h
50350 @@ -124,7 +124,7 @@ struct _io_ops {
50351 u32 (*_write_scsi)(struct intf_hdl *pintfhdl, u32 cnt, u8 *pmem);
50352 void (*_read_port_cancel)(struct intf_hdl *pintfhdl);
50353 void (*_write_port_cancel)(struct intf_hdl *pintfhdl);
50354 -};
50355 +} __no_const;
50356
50357 struct io_req {
50358 struct list_head list;
50359 diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
50360 index dc23395..cf7e9b1 100644
50361 --- a/drivers/staging/rtl8712/rtl871x_io.h
50362 +++ b/drivers/staging/rtl8712/rtl871x_io.h
50363 @@ -108,7 +108,7 @@ struct _io_ops {
50364 u8 *pmem);
50365 u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
50366 u8 *pmem);
50367 -};
50368 +} __no_const;
50369
50370 struct io_req {
50371 struct list_head list;
50372 diff --git a/drivers/staging/rtl8723au/include/hal_intf.h b/drivers/staging/rtl8723au/include/hal_intf.h
50373 index d183f4b..3f4903d 100644
50374 --- a/drivers/staging/rtl8723au/include/hal_intf.h
50375 +++ b/drivers/staging/rtl8723au/include/hal_intf.h
50376 @@ -251,7 +251,7 @@ struct hal_ops {
50377 void (*hal_reset_security_engine)(struct rtw_adapter *adapter);
50378 s32 (*c2h_handler)(struct rtw_adapter *padapter, struct c2h_evt_hdr *c2h_evt);
50379 c2h_id_filter c2h_id_filter_ccx;
50380 -};
50381 +} __no_const;
50382
50383 enum rt_eeprom_type {
50384 EEPROM_93C46,
50385 diff --git a/drivers/staging/rtl8723au/include/rtw_io.h b/drivers/staging/rtl8723au/include/rtw_io.h
50386 index 8d39d800..3f21c0c 100644
50387 --- a/drivers/staging/rtl8723au/include/rtw_io.h
50388 +++ b/drivers/staging/rtl8723au/include/rtw_io.h
50389 @@ -130,7 +130,7 @@ struct _io_ops
50390 void (*_read_port_cancel)(struct intf_hdl *pintfhdl);
50391 void (*_write_port_cancel)(struct intf_hdl *pintfhdl);
50392
50393 -};
50394 +} __no_const;
50395
50396 struct io_req {
50397 struct list_head list;
50398 diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
50399 index fe6c951..72935ba 100644
50400 --- a/drivers/staging/sbe-2t3e3/netdev.c
50401 +++ b/drivers/staging/sbe-2t3e3/netdev.c
50402 @@ -51,7 +51,7 @@ static int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
50403 t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen);
50404
50405 if (rlen)
50406 - if (copy_to_user(data, &resp, rlen))
50407 + if (rlen > sizeof resp || copy_to_user(data, &resp, rlen))
50408 return -EFAULT;
50409
50410 return 0;
50411 diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h
50412 index a863a98..d272795 100644
50413 --- a/drivers/staging/usbip/vhci.h
50414 +++ b/drivers/staging/usbip/vhci.h
50415 @@ -83,7 +83,7 @@ struct vhci_hcd {
50416 unsigned resuming:1;
50417 unsigned long re_timeout;
50418
50419 - atomic_t seqnum;
50420 + atomic_unchecked_t seqnum;
50421
50422 /*
50423 * NOTE:
50424 diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
50425 index 70e1755..de41855 100644
50426 --- a/drivers/staging/usbip/vhci_hcd.c
50427 +++ b/drivers/staging/usbip/vhci_hcd.c
50428 @@ -439,7 +439,7 @@ static void vhci_tx_urb(struct urb *urb)
50429
50430 spin_lock(&vdev->priv_lock);
50431
50432 - priv->seqnum = atomic_inc_return(&the_controller->seqnum);
50433 + priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
50434 if (priv->seqnum == 0xffff)
50435 dev_info(&urb->dev->dev, "seqnum max\n");
50436
50437 @@ -685,7 +685,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
50438 return -ENOMEM;
50439 }
50440
50441 - unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
50442 + unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
50443 if (unlink->seqnum == 0xffff)
50444 pr_info("seqnum max\n");
50445
50446 @@ -889,7 +889,7 @@ static int vhci_start(struct usb_hcd *hcd)
50447 vdev->rhport = rhport;
50448 }
50449
50450 - atomic_set(&vhci->seqnum, 0);
50451 + atomic_set_unchecked(&vhci->seqnum, 0);
50452 spin_lock_init(&vhci->lock);
50453
50454 hcd->power_budget = 0; /* no limit */
50455 diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
50456 index d07fcb5..358e1e1 100644
50457 --- a/drivers/staging/usbip/vhci_rx.c
50458 +++ b/drivers/staging/usbip/vhci_rx.c
50459 @@ -80,7 +80,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
50460 if (!urb) {
50461 pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
50462 pr_info("max seqnum %d\n",
50463 - atomic_read(&the_controller->seqnum));
50464 + atomic_read_unchecked(&the_controller->seqnum));
50465 usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
50466 return;
50467 }
50468 diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
50469 index 6eecd53..29317c6 100644
50470 --- a/drivers/staging/vt6655/hostap.c
50471 +++ b/drivers/staging/vt6655/hostap.c
50472 @@ -69,14 +69,13 @@ static int msglevel = MSG_LEVEL_INFO;
50473 *
50474 */
50475
50476 +static net_device_ops_no_const apdev_netdev_ops;
50477 +
50478 static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
50479 {
50480 PSDevice apdev_priv;
50481 struct net_device *dev = pDevice->dev;
50482 int ret;
50483 - const struct net_device_ops apdev_netdev_ops = {
50484 - .ndo_start_xmit = pDevice->tx_80211,
50485 - };
50486
50487 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
50488
50489 @@ -88,6 +87,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
50490 *apdev_priv = *pDevice;
50491 eth_hw_addr_inherit(pDevice->apdev, dev);
50492
50493 + /* only half broken now */
50494 + apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
50495 pDevice->apdev->netdev_ops = &apdev_netdev_ops;
50496
50497 pDevice->apdev->type = ARPHRD_IEEE80211;
50498 diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
50499 index 67ba48b..24e602f 100644
50500 --- a/drivers/staging/vt6656/hostap.c
50501 +++ b/drivers/staging/vt6656/hostap.c
50502 @@ -60,14 +60,13 @@ static int msglevel =MSG_LEVEL_INFO;
50503 *
50504 */
50505
50506 +static net_device_ops_no_const apdev_netdev_ops;
50507 +
50508 static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
50509 {
50510 struct vnt_private *apdev_priv;
50511 struct net_device *dev = pDevice->dev;
50512 int ret;
50513 - const struct net_device_ops apdev_netdev_ops = {
50514 - .ndo_start_xmit = pDevice->tx_80211,
50515 - };
50516
50517 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
50518
50519 @@ -79,6 +78,8 @@ static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
50520 *apdev_priv = *pDevice;
50521 memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
50522
50523 + /* only half broken now */
50524 + apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
50525 pDevice->apdev->netdev_ops = &apdev_netdev_ops;
50526
50527 pDevice->apdev->type = ARPHRD_IEEE80211;
50528 diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
50529 index e7e9372..161f530 100644
50530 --- a/drivers/target/sbp/sbp_target.c
50531 +++ b/drivers/target/sbp/sbp_target.c
50532 @@ -62,7 +62,7 @@ static const u32 sbp_unit_directory_template[] = {
50533
50534 #define SESSION_MAINTENANCE_INTERVAL HZ
50535
50536 -static atomic_t login_id = ATOMIC_INIT(0);
50537 +static atomic_unchecked_t login_id = ATOMIC_INIT(0);
50538
50539 static void session_maintenance_work(struct work_struct *);
50540 static int sbp_run_transaction(struct fw_card *, int, int, int, int,
50541 @@ -444,7 +444,7 @@ static void sbp_management_request_login(
50542 login->lun = se_lun;
50543 login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
50544 login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
50545 - login->login_id = atomic_inc_return(&login_id);
50546 + login->login_id = atomic_inc_return_unchecked(&login_id);
50547
50548 login->tgt_agt = sbp_target_agent_register(login);
50549 if (IS_ERR(login->tgt_agt)) {
50550 diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
50551 index 6ea95d2..88607b4 100644
50552 --- a/drivers/target/target_core_device.c
50553 +++ b/drivers/target/target_core_device.c
50554 @@ -1525,7 +1525,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
50555 spin_lock_init(&dev->se_tmr_lock);
50556 spin_lock_init(&dev->qf_cmd_lock);
50557 sema_init(&dev->caw_sem, 1);
50558 - atomic_set(&dev->dev_ordered_id, 0);
50559 + atomic_set_unchecked(&dev->dev_ordered_id, 0);
50560 INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list);
50561 spin_lock_init(&dev->t10_wwn.t10_vpd_lock);
50562 INIT_LIST_HEAD(&dev->t10_pr.registration_list);
50563 diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
50564 index 14772e9..42d9f63 100644
50565 --- a/drivers/target/target_core_transport.c
50566 +++ b/drivers/target/target_core_transport.c
50567 @@ -1165,7 +1165,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
50568 * Used to determine when ORDERED commands should go from
50569 * Dormant to Active status.
50570 */
50571 - cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
50572 + cmd->se_ordered_id = atomic_inc_return_unchecked(&dev->dev_ordered_id);
50573 smp_mb__after_atomic_inc();
50574 pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
50575 cmd->se_ordered_id, cmd->sam_task_attr,
50576 diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
50577 index 04b1be7..5eff86d 100644
50578 --- a/drivers/thermal/of-thermal.c
50579 +++ b/drivers/thermal/of-thermal.c
50580 @@ -30,6 +30,7 @@
50581 #include <linux/err.h>
50582 #include <linux/export.h>
50583 #include <linux/string.h>
50584 +#include <linux/mm.h>
50585
50586 #include "thermal_core.h"
50587
50588 @@ -341,8 +342,10 @@ thermal_zone_of_add_sensor(struct device_node *zone,
50589 tz->get_trend = get_trend;
50590 tz->sensor_data = data;
50591
50592 - tzd->ops->get_temp = of_thermal_get_temp;
50593 - tzd->ops->get_trend = of_thermal_get_trend;
50594 + pax_open_kernel();
50595 + *(void **)&tzd->ops->get_temp = of_thermal_get_temp;
50596 + *(void **)&tzd->ops->get_trend = of_thermal_get_trend;
50597 + pax_close_kernel();
50598 mutex_unlock(&tzd->lock);
50599
50600 return tzd;
50601 @@ -461,8 +464,10 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
50602 return;
50603
50604 mutex_lock(&tzd->lock);
50605 - tzd->ops->get_temp = NULL;
50606 - tzd->ops->get_trend = NULL;
50607 + pax_open_kernel();
50608 + *(void **)&tzd->ops->get_temp = NULL;
50609 + *(void **)&tzd->ops->get_trend = NULL;
50610 + pax_close_kernel();
50611
50612 tz->get_temp = NULL;
50613 tz->get_trend = NULL;
50614 diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
50615 index a57bb5a..1f727d33 100644
50616 --- a/drivers/tty/cyclades.c
50617 +++ b/drivers/tty/cyclades.c
50618 @@ -1570,10 +1570,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
50619 printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
50620 info->port.count);
50621 #endif
50622 - info->port.count++;
50623 + atomic_inc(&info->port.count);
50624 #ifdef CY_DEBUG_COUNT
50625 printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
50626 - current->pid, info->port.count);
50627 + current->pid, atomic_read(&info->port.count));
50628 #endif
50629
50630 /*
50631 @@ -3974,7 +3974,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
50632 for (j = 0; j < cy_card[i].nports; j++) {
50633 info = &cy_card[i].ports[j];
50634
50635 - if (info->port.count) {
50636 + if (atomic_read(&info->port.count)) {
50637 /* XXX is the ldisc num worth this? */
50638 struct tty_struct *tty;
50639 struct tty_ldisc *ld;
50640 diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
50641 index 0ff7fda..dbc7d52 100644
50642 --- a/drivers/tty/hvc/hvc_console.c
50643 +++ b/drivers/tty/hvc/hvc_console.c
50644 @@ -342,7 +342,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
50645
50646 spin_lock_irqsave(&hp->port.lock, flags);
50647 /* Check and then increment for fast path open. */
50648 - if (hp->port.count++ > 0) {
50649 + if (atomic_inc_return(&hp->port.count) > 1) {
50650 spin_unlock_irqrestore(&hp->port.lock, flags);
50651 hvc_kick();
50652 return 0;
50653 @@ -397,7 +397,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
50654
50655 spin_lock_irqsave(&hp->port.lock, flags);
50656
50657 - if (--hp->port.count == 0) {
50658 + if (atomic_dec_return(&hp->port.count) == 0) {
50659 spin_unlock_irqrestore(&hp->port.lock, flags);
50660 /* We are done with the tty pointer now. */
50661 tty_port_tty_set(&hp->port, NULL);
50662 @@ -419,9 +419,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
50663 */
50664 tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
50665 } else {
50666 - if (hp->port.count < 0)
50667 + if (atomic_read(&hp->port.count) < 0)
50668 printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
50669 - hp->vtermno, hp->port.count);
50670 + hp->vtermno, atomic_read(&hp->port.count));
50671 spin_unlock_irqrestore(&hp->port.lock, flags);
50672 }
50673 }
50674 @@ -451,12 +451,12 @@ static void hvc_hangup(struct tty_struct *tty)
50675 * open->hangup case this can be called after the final close so prevent
50676 * that from happening for now.
50677 */
50678 - if (hp->port.count <= 0) {
50679 + if (atomic_read(&hp->port.count) <= 0) {
50680 spin_unlock_irqrestore(&hp->port.lock, flags);
50681 return;
50682 }
50683
50684 - hp->port.count = 0;
50685 + atomic_set(&hp->port.count, 0);
50686 spin_unlock_irqrestore(&hp->port.lock, flags);
50687 tty_port_tty_set(&hp->port, NULL);
50688
50689 @@ -504,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
50690 return -EPIPE;
50691
50692 /* FIXME what's this (unprotected) check for? */
50693 - if (hp->port.count <= 0)
50694 + if (atomic_read(&hp->port.count) <= 0)
50695 return -EIO;
50696
50697 spin_lock_irqsave(&hp->lock, flags);
50698 diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
50699 index 81e939e..95ead10 100644
50700 --- a/drivers/tty/hvc/hvcs.c
50701 +++ b/drivers/tty/hvc/hvcs.c
50702 @@ -83,6 +83,7 @@
50703 #include <asm/hvcserver.h>
50704 #include <asm/uaccess.h>
50705 #include <asm/vio.h>
50706 +#include <asm/local.h>
50707
50708 /*
50709 * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
50710 @@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
50711
50712 spin_lock_irqsave(&hvcsd->lock, flags);
50713
50714 - if (hvcsd->port.count > 0) {
50715 + if (atomic_read(&hvcsd->port.count) > 0) {
50716 spin_unlock_irqrestore(&hvcsd->lock, flags);
50717 printk(KERN_INFO "HVCS: vterm state unchanged. "
50718 "The hvcs device node is still in use.\n");
50719 @@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
50720 }
50721 }
50722
50723 - hvcsd->port.count = 0;
50724 + atomic_set(&hvcsd->port.count, 0);
50725 hvcsd->port.tty = tty;
50726 tty->driver_data = hvcsd;
50727
50728 @@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
50729 unsigned long flags;
50730
50731 spin_lock_irqsave(&hvcsd->lock, flags);
50732 - hvcsd->port.count++;
50733 + atomic_inc(&hvcsd->port.count);
50734 hvcsd->todo_mask |= HVCS_SCHED_READ;
50735 spin_unlock_irqrestore(&hvcsd->lock, flags);
50736
50737 @@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
50738 hvcsd = tty->driver_data;
50739
50740 spin_lock_irqsave(&hvcsd->lock, flags);
50741 - if (--hvcsd->port.count == 0) {
50742 + if (atomic_dec_and_test(&hvcsd->port.count)) {
50743
50744 vio_disable_interrupts(hvcsd->vdev);
50745
50746 @@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
50747
50748 free_irq(irq, hvcsd);
50749 return;
50750 - } else if (hvcsd->port.count < 0) {
50751 + } else if (atomic_read(&hvcsd->port.count) < 0) {
50752 printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
50753 " is missmanaged.\n",
50754 - hvcsd->vdev->unit_address, hvcsd->port.count);
50755 + hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
50756 }
50757
50758 spin_unlock_irqrestore(&hvcsd->lock, flags);
50759 @@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
50760
50761 spin_lock_irqsave(&hvcsd->lock, flags);
50762 /* Preserve this so that we know how many kref refs to put */
50763 - temp_open_count = hvcsd->port.count;
50764 + temp_open_count = atomic_read(&hvcsd->port.count);
50765
50766 /*
50767 * Don't kref put inside the spinlock because the destruction
50768 @@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
50769 tty->driver_data = NULL;
50770 hvcsd->port.tty = NULL;
50771
50772 - hvcsd->port.count = 0;
50773 + atomic_set(&hvcsd->port.count, 0);
50774
50775 /* This will drop any buffered data on the floor which is OK in a hangup
50776 * scenario. */
50777 @@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
50778 * the middle of a write operation? This is a crummy place to do this
50779 * but we want to keep it all in the spinlock.
50780 */
50781 - if (hvcsd->port.count <= 0) {
50782 + if (atomic_read(&hvcsd->port.count) <= 0) {
50783 spin_unlock_irqrestore(&hvcsd->lock, flags);
50784 return -ENODEV;
50785 }
50786 @@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
50787 {
50788 struct hvcs_struct *hvcsd = tty->driver_data;
50789
50790 - if (!hvcsd || hvcsd->port.count <= 0)
50791 + if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
50792 return 0;
50793
50794 return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
50795 diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
50796 index 4190199..06d5bfa 100644
50797 --- a/drivers/tty/hvc/hvsi.c
50798 +++ b/drivers/tty/hvc/hvsi.c
50799 @@ -85,7 +85,7 @@ struct hvsi_struct {
50800 int n_outbuf;
50801 uint32_t vtermno;
50802 uint32_t virq;
50803 - atomic_t seqno; /* HVSI packet sequence number */
50804 + atomic_unchecked_t seqno; /* HVSI packet sequence number */
50805 uint16_t mctrl;
50806 uint8_t state; /* HVSI protocol state */
50807 uint8_t flags;
50808 @@ -295,7 +295,7 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
50809
50810 packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
50811 packet.hdr.len = sizeof(struct hvsi_query_response);
50812 - packet.hdr.seqno = atomic_inc_return(&hp->seqno);
50813 + packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
50814 packet.verb = VSV_SEND_VERSION_NUMBER;
50815 packet.u.version = HVSI_VERSION;
50816 packet.query_seqno = query_seqno+1;
50817 @@ -555,7 +555,7 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
50818
50819 packet.hdr.type = VS_QUERY_PACKET_HEADER;
50820 packet.hdr.len = sizeof(struct hvsi_query);
50821 - packet.hdr.seqno = atomic_inc_return(&hp->seqno);
50822 + packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
50823 packet.verb = verb;
50824
50825 pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
50826 @@ -597,7 +597,7 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
50827 int wrote;
50828
50829 packet.hdr.type = VS_CONTROL_PACKET_HEADER,
50830 - packet.hdr.seqno = atomic_inc_return(&hp->seqno);
50831 + packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
50832 packet.hdr.len = sizeof(struct hvsi_control);
50833 packet.verb = VSV_SET_MODEM_CTL;
50834 packet.mask = HVSI_TSDTR;
50835 @@ -680,7 +680,7 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
50836 BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
50837
50838 packet.hdr.type = VS_DATA_PACKET_HEADER;
50839 - packet.hdr.seqno = atomic_inc_return(&hp->seqno);
50840 + packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
50841 packet.hdr.len = count + sizeof(struct hvsi_header);
50842 memcpy(&packet.data, buf, count);
50843
50844 @@ -697,7 +697,7 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
50845 struct hvsi_control packet __ALIGNED__;
50846
50847 packet.hdr.type = VS_CONTROL_PACKET_HEADER;
50848 - packet.hdr.seqno = atomic_inc_return(&hp->seqno);
50849 + packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
50850 packet.hdr.len = 6;
50851 packet.verb = VSV_CLOSE_PROTOCOL;
50852
50853 @@ -725,7 +725,7 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
50854
50855 tty_port_tty_set(&hp->port, tty);
50856 spin_lock_irqsave(&hp->lock, flags);
50857 - hp->port.count++;
50858 + atomic_inc(&hp->port.count);
50859 atomic_set(&hp->seqno, 0);
50860 h_vio_signal(hp->vtermno, VIO_IRQ_ENABLE);
50861 spin_unlock_irqrestore(&hp->lock, flags);
50862 @@ -782,7 +782,7 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
50863
50864 spin_lock_irqsave(&hp->lock, flags);
50865
50866 - if (--hp->port.count == 0) {
50867 + if (atomic_dec_return(&hp->port.count) == 0) {
50868 tty_port_tty_set(&hp->port, NULL);
50869 hp->inbuf_end = hp->inbuf; /* discard remaining partial packets */
50870
50871 @@ -815,9 +815,9 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
50872
50873 spin_lock_irqsave(&hp->lock, flags);
50874 }
50875 - } else if (hp->port.count < 0)
50876 + } else if (atomic_read(&hp->port.count) < 0)
50877 printk(KERN_ERR "hvsi_close %lu: oops, count is %d\n",
50878 - hp - hvsi_ports, hp->port.count);
50879 + hp - hvsi_ports, atomic_read(&hp->port.count));
50880
50881 spin_unlock_irqrestore(&hp->lock, flags);
50882 }
50883 @@ -832,7 +832,7 @@ static void hvsi_hangup(struct tty_struct *tty)
50884 tty_port_tty_set(&hp->port, NULL);
50885
50886 spin_lock_irqsave(&hp->lock, flags);
50887 - hp->port.count = 0;
50888 + atomic_set(&hp->port.count, 0);
50889 hp->n_outbuf = 0;
50890 spin_unlock_irqrestore(&hp->lock, flags);
50891 }
50892 diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
50893 index 7ae6c29..05c6dba 100644
50894 --- a/drivers/tty/hvc/hvsi_lib.c
50895 +++ b/drivers/tty/hvc/hvsi_lib.c
50896 @@ -8,7 +8,7 @@
50897
50898 static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
50899 {
50900 - packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
50901 + packet->seqno = cpu_to_be16(atomic_inc_return_unchecked(&pv->seqno));
50902
50903 /* Assumes that always succeeds, works in practice */
50904 return pv->put_chars(pv->termno, (char *)packet, packet->len);
50905 @@ -20,7 +20,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
50906
50907 /* Reset state */
50908 pv->established = 0;
50909 - atomic_set(&pv->seqno, 0);
50910 + atomic_set_unchecked(&pv->seqno, 0);
50911
50912 pr_devel("HVSI@%x: Handshaking started\n", pv->termno);
50913
50914 diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
50915 index 17ee3bf..8d2520d 100644
50916 --- a/drivers/tty/ipwireless/tty.c
50917 +++ b/drivers/tty/ipwireless/tty.c
50918 @@ -28,6 +28,7 @@
50919 #include <linux/tty_driver.h>
50920 #include <linux/tty_flip.h>
50921 #include <linux/uaccess.h>
50922 +#include <asm/local.h>
50923
50924 #include "tty.h"
50925 #include "network.h"
50926 @@ -98,10 +99,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
50927 mutex_unlock(&tty->ipw_tty_mutex);
50928 return -ENODEV;
50929 }
50930 - if (tty->port.count == 0)
50931 + if (atomic_read(&tty->port.count) == 0)
50932 tty->tx_bytes_queued = 0;
50933
50934 - tty->port.count++;
50935 + atomic_inc(&tty->port.count);
50936
50937 tty->port.tty = linux_tty;
50938 linux_tty->driver_data = tty;
50939 @@ -117,9 +118,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
50940
50941 static void do_ipw_close(struct ipw_tty *tty)
50942 {
50943 - tty->port.count--;
50944 -
50945 - if (tty->port.count == 0) {
50946 + if (atomic_dec_return(&tty->port.count) == 0) {
50947 struct tty_struct *linux_tty = tty->port.tty;
50948
50949 if (linux_tty != NULL) {
50950 @@ -140,7 +139,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
50951 return;
50952
50953 mutex_lock(&tty->ipw_tty_mutex);
50954 - if (tty->port.count == 0) {
50955 + if (atomic_read(&tty->port.count) == 0) {
50956 mutex_unlock(&tty->ipw_tty_mutex);
50957 return;
50958 }
50959 @@ -163,7 +162,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
50960
50961 mutex_lock(&tty->ipw_tty_mutex);
50962
50963 - if (!tty->port.count) {
50964 + if (!atomic_read(&tty->port.count)) {
50965 mutex_unlock(&tty->ipw_tty_mutex);
50966 return;
50967 }
50968 @@ -202,7 +201,7 @@ static int ipw_write(struct tty_struct *linux_tty,
50969 return -ENODEV;
50970
50971 mutex_lock(&tty->ipw_tty_mutex);
50972 - if (!tty->port.count) {
50973 + if (!atomic_read(&tty->port.count)) {
50974 mutex_unlock(&tty->ipw_tty_mutex);
50975 return -EINVAL;
50976 }
50977 @@ -242,7 +241,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
50978 if (!tty)
50979 return -ENODEV;
50980
50981 - if (!tty->port.count)
50982 + if (!atomic_read(&tty->port.count))
50983 return -EINVAL;
50984
50985 room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
50986 @@ -284,7 +283,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
50987 if (!tty)
50988 return 0;
50989
50990 - if (!tty->port.count)
50991 + if (!atomic_read(&tty->port.count))
50992 return 0;
50993
50994 return tty->tx_bytes_queued;
50995 @@ -365,7 +364,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
50996 if (!tty)
50997 return -ENODEV;
50998
50999 - if (!tty->port.count)
51000 + if (!atomic_read(&tty->port.count))
51001 return -EINVAL;
51002
51003 return get_control_lines(tty);
51004 @@ -381,7 +380,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
51005 if (!tty)
51006 return -ENODEV;
51007
51008 - if (!tty->port.count)
51009 + if (!atomic_read(&tty->port.count))
51010 return -EINVAL;
51011
51012 return set_control_lines(tty, set, clear);
51013 @@ -395,7 +394,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
51014 if (!tty)
51015 return -ENODEV;
51016
51017 - if (!tty->port.count)
51018 + if (!atomic_read(&tty->port.count))
51019 return -EINVAL;
51020
51021 /* FIXME: Exactly how is the tty object locked here .. */
51022 @@ -551,7 +550,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
51023 * are gone */
51024 mutex_lock(&ttyj->ipw_tty_mutex);
51025 }
51026 - while (ttyj->port.count)
51027 + while (atomic_read(&ttyj->port.count))
51028 do_ipw_close(ttyj);
51029 ipwireless_disassociate_network_ttys(network,
51030 ttyj->channel_idx);
51031 diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
51032 index 1deaca4..c8582d4 100644
51033 --- a/drivers/tty/moxa.c
51034 +++ b/drivers/tty/moxa.c
51035 @@ -1189,7 +1189,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
51036 }
51037
51038 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
51039 - ch->port.count++;
51040 + atomic_inc(&ch->port.count);
51041 tty->driver_data = ch;
51042 tty_port_tty_set(&ch->port, tty);
51043 mutex_lock(&ch->port.mutex);
51044 diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
51045 index 2ebe47b..3205833 100644
51046 --- a/drivers/tty/n_gsm.c
51047 +++ b/drivers/tty/n_gsm.c
51048 @@ -1644,7 +1644,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
51049 spin_lock_init(&dlci->lock);
51050 mutex_init(&dlci->mutex);
51051 dlci->fifo = &dlci->_fifo;
51052 - if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
51053 + if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
51054 kfree(dlci);
51055 return NULL;
51056 }
51057 @@ -2954,7 +2954,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
51058 struct gsm_dlci *dlci = tty->driver_data;
51059 struct tty_port *port = &dlci->port;
51060
51061 - port->count++;
51062 + atomic_inc(&port->count);
51063 tty_port_tty_set(port, tty);
51064
51065 dlci->modem_rx = 0;
51066 diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
51067 index 0391f17..31fa586 100644
51068 --- a/drivers/tty/n_tty.c
51069 +++ b/drivers/tty/n_tty.c
51070 @@ -115,7 +115,7 @@ struct n_tty_data {
51071 int minimum_to_wake;
51072
51073 /* consumer-published */
51074 - size_t read_tail;
51075 + size_t read_tail __intentional_overflow(-1);
51076 size_t line_start;
51077
51078 /* protected by output lock */
51079 @@ -2517,6 +2517,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
51080 {
51081 *ops = tty_ldisc_N_TTY;
51082 ops->owner = NULL;
51083 - ops->refcount = ops->flags = 0;
51084 + atomic_set(&ops->refcount, 0);
51085 + ops->flags = 0;
51086 }
51087 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
51088 diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
51089 index 25c9bc7..24077b7 100644
51090 --- a/drivers/tty/pty.c
51091 +++ b/drivers/tty/pty.c
51092 @@ -790,8 +790,10 @@ static void __init unix98_pty_init(void)
51093 panic("Couldn't register Unix98 pts driver");
51094
51095 /* Now create the /dev/ptmx special device */
51096 + pax_open_kernel();
51097 tty_default_fops(&ptmx_fops);
51098 - ptmx_fops.open = ptmx_open;
51099 + *(void **)&ptmx_fops.open = ptmx_open;
51100 + pax_close_kernel();
51101
51102 cdev_init(&ptmx_cdev, &ptmx_fops);
51103 if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
51104 diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
51105 index 383c4c7..d408e21 100644
51106 --- a/drivers/tty/rocket.c
51107 +++ b/drivers/tty/rocket.c
51108 @@ -914,7 +914,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
51109 tty->driver_data = info;
51110 tty_port_tty_set(port, tty);
51111
51112 - if (port->count++ == 0) {
51113 + if (atomic_inc_return(&port->count) == 1) {
51114 atomic_inc(&rp_num_ports_open);
51115
51116 #ifdef ROCKET_DEBUG_OPEN
51117 @@ -923,7 +923,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
51118 #endif
51119 }
51120 #ifdef ROCKET_DEBUG_OPEN
51121 - printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
51122 + printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
51123 #endif
51124
51125 /*
51126 @@ -1515,7 +1515,7 @@ static void rp_hangup(struct tty_struct *tty)
51127 spin_unlock_irqrestore(&info->port.lock, flags);
51128 return;
51129 }
51130 - if (info->port.count)
51131 + if (atomic_read(&info->port.count))
51132 atomic_dec(&rp_num_ports_open);
51133 clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
51134 spin_unlock_irqrestore(&info->port.lock, flags);
51135 diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
51136 index 1274499..f541382 100644
51137 --- a/drivers/tty/serial/ioc4_serial.c
51138 +++ b/drivers/tty/serial/ioc4_serial.c
51139 @@ -437,7 +437,7 @@ struct ioc4_soft {
51140 } is_intr_info[MAX_IOC4_INTR_ENTS];
51141
51142 /* Number of entries active in the above array */
51143 - atomic_t is_num_intrs;
51144 + atomic_unchecked_t is_num_intrs;
51145 } is_intr_type[IOC4_NUM_INTR_TYPES];
51146
51147 /* is_ir_lock must be held while
51148 @@ -974,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
51149 BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
51150 || (type == IOC4_OTHER_INTR_TYPE)));
51151
51152 - i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
51153 + i = atomic_inc_return_unchecked(&soft-> is_intr_type[type].is_num_intrs) - 1;
51154 BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
51155
51156 /* Save off the lower level interrupt handler */
51157 @@ -1001,7 +1001,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
51158
51159 soft = arg;
51160 for (intr_type = 0; intr_type < IOC4_NUM_INTR_TYPES; intr_type++) {
51161 - num_intrs = (int)atomic_read(
51162 + num_intrs = (int)atomic_read_unchecked(
51163 &soft->is_intr_type[intr_type].is_num_intrs);
51164
51165 this_mir = this_ir = pending_intrs(soft, intr_type);
51166 diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
51167 index a260cde..6b2b5ce 100644
51168 --- a/drivers/tty/serial/kgdboc.c
51169 +++ b/drivers/tty/serial/kgdboc.c
51170 @@ -24,8 +24,9 @@
51171 #define MAX_CONFIG_LEN 40
51172
51173 static struct kgdb_io kgdboc_io_ops;
51174 +static struct kgdb_io kgdboc_io_ops_console;
51175
51176 -/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
51177 +/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
51178 static int configured = -1;
51179
51180 static char config[MAX_CONFIG_LEN];
51181 @@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
51182 kgdboc_unregister_kbd();
51183 if (configured == 1)
51184 kgdb_unregister_io_module(&kgdboc_io_ops);
51185 + else if (configured == 2)
51186 + kgdb_unregister_io_module(&kgdboc_io_ops_console);
51187 }
51188
51189 static int configure_kgdboc(void)
51190 @@ -160,13 +163,13 @@ static int configure_kgdboc(void)
51191 int err;
51192 char *cptr = config;
51193 struct console *cons;
51194 + int is_console = 0;
51195
51196 err = kgdboc_option_setup(config);
51197 if (err || !strlen(config) || isspace(config[0]))
51198 goto noconfig;
51199
51200 err = -ENODEV;
51201 - kgdboc_io_ops.is_console = 0;
51202 kgdb_tty_driver = NULL;
51203
51204 kgdboc_use_kms = 0;
51205 @@ -187,7 +190,7 @@ static int configure_kgdboc(void)
51206 int idx;
51207 if (cons->device && cons->device(cons, &idx) == p &&
51208 idx == tty_line) {
51209 - kgdboc_io_ops.is_console = 1;
51210 + is_console = 1;
51211 break;
51212 }
51213 cons = cons->next;
51214 @@ -197,7 +200,13 @@ static int configure_kgdboc(void)
51215 kgdb_tty_line = tty_line;
51216
51217 do_register:
51218 - err = kgdb_register_io_module(&kgdboc_io_ops);
51219 + if (is_console) {
51220 + err = kgdb_register_io_module(&kgdboc_io_ops_console);
51221 + configured = 2;
51222 + } else {
51223 + err = kgdb_register_io_module(&kgdboc_io_ops);
51224 + configured = 1;
51225 + }
51226 if (err)
51227 goto noconfig;
51228
51229 @@ -205,8 +214,6 @@ do_register:
51230 if (err)
51231 goto nmi_con_failed;
51232
51233 - configured = 1;
51234 -
51235 return 0;
51236
51237 nmi_con_failed:
51238 @@ -223,7 +230,7 @@ noconfig:
51239 static int __init init_kgdboc(void)
51240 {
51241 /* Already configured? */
51242 - if (configured == 1)
51243 + if (configured >= 1)
51244 return 0;
51245
51246 return configure_kgdboc();
51247 @@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
51248 if (config[len - 1] == '\n')
51249 config[len - 1] = '\0';
51250
51251 - if (configured == 1)
51252 + if (configured >= 1)
51253 cleanup_kgdboc();
51254
51255 /* Go and configure with the new params. */
51256 @@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
51257 .post_exception = kgdboc_post_exp_handler,
51258 };
51259
51260 +static struct kgdb_io kgdboc_io_ops_console = {
51261 + .name = "kgdboc",
51262 + .read_char = kgdboc_get_char,
51263 + .write_char = kgdboc_put_char,
51264 + .pre_exception = kgdboc_pre_exp_handler,
51265 + .post_exception = kgdboc_post_exp_handler,
51266 + .is_console = 1
51267 +};
51268 +
51269 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
51270 /* This is only available if kgdboc is a built in for early debugging */
51271 static int __init kgdboc_early_init(char *opt)
51272 diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
51273 index 7307dc4..ce4fe90 100644
51274 --- a/drivers/tty/serial/msm_serial.c
51275 +++ b/drivers/tty/serial/msm_serial.c
51276 @@ -1026,7 +1026,7 @@ static struct uart_driver msm_uart_driver = {
51277 .cons = MSM_CONSOLE,
51278 };
51279
51280 -static atomic_t msm_uart_next_id = ATOMIC_INIT(0);
51281 +static atomic_unchecked_t msm_uart_next_id = ATOMIC_INIT(0);
51282
51283 static const struct of_device_id msm_uartdm_table[] = {
51284 { .compatible = "qcom,msm-uartdm-v1.1", .data = (void *)UARTDM_1P1 },
51285 @@ -1045,7 +1045,7 @@ static int __init msm_serial_probe(struct platform_device *pdev)
51286 int irq;
51287
51288 if (pdev->id == -1)
51289 - pdev->id = atomic_inc_return(&msm_uart_next_id) - 1;
51290 + pdev->id = atomic_inc_return_unchecked(&msm_uart_next_id) - 1;
51291
51292 if (unlikely(pdev->id < 0 || pdev->id >= UART_NR))
51293 return -ENXIO;
51294 diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
51295 index 1f5505e..a1a767d 100644
51296 --- a/drivers/tty/serial/samsung.c
51297 +++ b/drivers/tty/serial/samsung.c
51298 @@ -463,11 +463,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
51299 }
51300 }
51301
51302 +static int s3c64xx_serial_startup(struct uart_port *port);
51303 static int s3c24xx_serial_startup(struct uart_port *port)
51304 {
51305 struct s3c24xx_uart_port *ourport = to_ourport(port);
51306 int ret;
51307
51308 + /* Startup sequence is different for s3c64xx and higher SoC's */
51309 + if (s3c24xx_serial_has_interrupt_mask(port))
51310 + return s3c64xx_serial_startup(port);
51311 +
51312 dbg("s3c24xx_serial_startup: port=%p (%08lx,%p)\n",
51313 port->mapbase, port->membase);
51314
51315 @@ -1141,10 +1146,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
51316 /* setup info for port */
51317 port->dev = &platdev->dev;
51318
51319 - /* Startup sequence is different for s3c64xx and higher SoC's */
51320 - if (s3c24xx_serial_has_interrupt_mask(port))
51321 - s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
51322 -
51323 port->uartclk = 1;
51324
51325 if (cfg->uart_flags & UPF_CONS_FLOW) {
51326 diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
51327 index b68550d..a62d7f8 100644
51328 --- a/drivers/tty/serial/serial_core.c
51329 +++ b/drivers/tty/serial/serial_core.c
51330 @@ -1329,7 +1329,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
51331
51332 pr_debug("uart_close(%d) called\n", uport ? uport->line : -1);
51333
51334 - if (!port->count || tty_port_close_start(port, tty, filp) == 0)
51335 + if (!atomic_read(&port->count) || tty_port_close_start(port, tty, filp) == 0)
51336 return;
51337
51338 /*
51339 @@ -1456,7 +1456,7 @@ static void uart_hangup(struct tty_struct *tty)
51340 uart_flush_buffer(tty);
51341 uart_shutdown(tty, state);
51342 spin_lock_irqsave(&port->lock, flags);
51343 - port->count = 0;
51344 + atomic_set(&port->count, 0);
51345 clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
51346 spin_unlock_irqrestore(&port->lock, flags);
51347 tty_port_tty_set(port, NULL);
51348 @@ -1554,7 +1554,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
51349 goto end;
51350 }
51351
51352 - port->count++;
51353 + atomic_inc(&port->count);
51354 if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
51355 retval = -ENXIO;
51356 goto err_dec_count;
51357 @@ -1594,7 +1594,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
51358 end:
51359 return retval;
51360 err_dec_count:
51361 - port->count--;
51362 + atomic_inc(&port->count);
51363 mutex_unlock(&port->mutex);
51364 goto end;
51365 }
51366 diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
51367 index d48e040..0f52764 100644
51368 --- a/drivers/tty/synclink.c
51369 +++ b/drivers/tty/synclink.c
51370 @@ -3090,7 +3090,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
51371
51372 if (debug_level >= DEBUG_LEVEL_INFO)
51373 printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
51374 - __FILE__,__LINE__, info->device_name, info->port.count);
51375 + __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
51376
51377 if (tty_port_close_start(&info->port, tty, filp) == 0)
51378 goto cleanup;
51379 @@ -3108,7 +3108,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
51380 cleanup:
51381 if (debug_level >= DEBUG_LEVEL_INFO)
51382 printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
51383 - tty->driver->name, info->port.count);
51384 + tty->driver->name, atomic_read(&info->port.count));
51385
51386 } /* end of mgsl_close() */
51387
51388 @@ -3207,8 +3207,8 @@ static void mgsl_hangup(struct tty_struct *tty)
51389
51390 mgsl_flush_buffer(tty);
51391 shutdown(info);
51392 -
51393 - info->port.count = 0;
51394 +
51395 + atomic_set(&info->port.count, 0);
51396 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
51397 info->port.tty = NULL;
51398
51399 @@ -3297,12 +3297,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
51400
51401 if (debug_level >= DEBUG_LEVEL_INFO)
51402 printk("%s(%d):block_til_ready before block on %s count=%d\n",
51403 - __FILE__,__LINE__, tty->driver->name, port->count );
51404 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51405
51406 spin_lock_irqsave(&info->irq_spinlock, flags);
51407 if (!tty_hung_up_p(filp)) {
51408 extra_count = true;
51409 - port->count--;
51410 + atomic_dec(&port->count);
51411 }
51412 spin_unlock_irqrestore(&info->irq_spinlock, flags);
51413 port->blocked_open++;
51414 @@ -3331,7 +3331,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
51415
51416 if (debug_level >= DEBUG_LEVEL_INFO)
51417 printk("%s(%d):block_til_ready blocking on %s count=%d\n",
51418 - __FILE__,__LINE__, tty->driver->name, port->count );
51419 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51420
51421 tty_unlock(tty);
51422 schedule();
51423 @@ -3343,12 +3343,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
51424
51425 /* FIXME: Racy on hangup during close wait */
51426 if (extra_count)
51427 - port->count++;
51428 + atomic_inc(&port->count);
51429 port->blocked_open--;
51430
51431 if (debug_level >= DEBUG_LEVEL_INFO)
51432 printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
51433 - __FILE__,__LINE__, tty->driver->name, port->count );
51434 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51435
51436 if (!retval)
51437 port->flags |= ASYNC_NORMAL_ACTIVE;
51438 @@ -3400,7 +3400,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
51439
51440 if (debug_level >= DEBUG_LEVEL_INFO)
51441 printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
51442 - __FILE__,__LINE__,tty->driver->name, info->port.count);
51443 + __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
51444
51445 /* If port is closing, signal caller to try again */
51446 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
51447 @@ -3419,10 +3419,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
51448 spin_unlock_irqrestore(&info->netlock, flags);
51449 goto cleanup;
51450 }
51451 - info->port.count++;
51452 + atomic_inc(&info->port.count);
51453 spin_unlock_irqrestore(&info->netlock, flags);
51454
51455 - if (info->port.count == 1) {
51456 + if (atomic_read(&info->port.count) == 1) {
51457 /* 1st open on this device, init hardware */
51458 retval = startup(info);
51459 if (retval < 0)
51460 @@ -3446,8 +3446,8 @@ cleanup:
51461 if (retval) {
51462 if (tty->count == 1)
51463 info->port.tty = NULL; /* tty layer will release tty struct */
51464 - if(info->port.count)
51465 - info->port.count--;
51466 + if (atomic_read(&info->port.count))
51467 + atomic_dec(&info->port.count);
51468 }
51469
51470 return retval;
51471 @@ -7665,7 +7665,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
51472 unsigned short new_crctype;
51473
51474 /* return error if TTY interface open */
51475 - if (info->port.count)
51476 + if (atomic_read(&info->port.count))
51477 return -EBUSY;
51478
51479 switch (encoding)
51480 @@ -7760,7 +7760,7 @@ static int hdlcdev_open(struct net_device *dev)
51481
51482 /* arbitrate between network and tty opens */
51483 spin_lock_irqsave(&info->netlock, flags);
51484 - if (info->port.count != 0 || info->netcount != 0) {
51485 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
51486 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
51487 spin_unlock_irqrestore(&info->netlock, flags);
51488 return -EBUSY;
51489 @@ -7846,7 +7846,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
51490 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
51491
51492 /* return error if TTY interface open */
51493 - if (info->port.count)
51494 + if (atomic_read(&info->port.count))
51495 return -EBUSY;
51496
51497 if (cmd != SIOCWANDEV)
51498 diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
51499 index c359a91..959fc26 100644
51500 --- a/drivers/tty/synclink_gt.c
51501 +++ b/drivers/tty/synclink_gt.c
51502 @@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
51503 tty->driver_data = info;
51504 info->port.tty = tty;
51505
51506 - DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
51507 + DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
51508
51509 /* If port is closing, signal caller to try again */
51510 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
51511 @@ -691,10 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
51512 mutex_unlock(&info->port.mutex);
51513 goto cleanup;
51514 }
51515 - info->port.count++;
51516 + atomic_inc(&info->port.count);
51517 spin_unlock_irqrestore(&info->netlock, flags);
51518
51519 - if (info->port.count == 1) {
51520 + if (atomic_read(&info->port.count) == 1) {
51521 /* 1st open on this device, init hardware */
51522 retval = startup(info);
51523 if (retval < 0) {
51524 @@ -715,8 +715,8 @@ cleanup:
51525 if (retval) {
51526 if (tty->count == 1)
51527 info->port.tty = NULL; /* tty layer will release tty struct */
51528 - if(info->port.count)
51529 - info->port.count--;
51530 + if(atomic_read(&info->port.count))
51531 + atomic_dec(&info->port.count);
51532 }
51533
51534 DBGINFO(("%s open rc=%d\n", info->device_name, retval));
51535 @@ -729,7 +729,7 @@ static void close(struct tty_struct *tty, struct file *filp)
51536
51537 if (sanity_check(info, tty->name, "close"))
51538 return;
51539 - DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
51540 + DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
51541
51542 if (tty_port_close_start(&info->port, tty, filp) == 0)
51543 goto cleanup;
51544 @@ -746,7 +746,7 @@ static void close(struct tty_struct *tty, struct file *filp)
51545 tty_port_close_end(&info->port, tty);
51546 info->port.tty = NULL;
51547 cleanup:
51548 - DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
51549 + DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
51550 }
51551
51552 static void hangup(struct tty_struct *tty)
51553 @@ -764,7 +764,7 @@ static void hangup(struct tty_struct *tty)
51554 shutdown(info);
51555
51556 spin_lock_irqsave(&info->port.lock, flags);
51557 - info->port.count = 0;
51558 + atomic_set(&info->port.count, 0);
51559 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
51560 info->port.tty = NULL;
51561 spin_unlock_irqrestore(&info->port.lock, flags);
51562 @@ -1449,7 +1449,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
51563 unsigned short new_crctype;
51564
51565 /* return error if TTY interface open */
51566 - if (info->port.count)
51567 + if (atomic_read(&info->port.count))
51568 return -EBUSY;
51569
51570 DBGINFO(("%s hdlcdev_attach\n", info->device_name));
51571 @@ -1544,7 +1544,7 @@ static int hdlcdev_open(struct net_device *dev)
51572
51573 /* arbitrate between network and tty opens */
51574 spin_lock_irqsave(&info->netlock, flags);
51575 - if (info->port.count != 0 || info->netcount != 0) {
51576 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
51577 DBGINFO(("%s hdlc_open busy\n", dev->name));
51578 spin_unlock_irqrestore(&info->netlock, flags);
51579 return -EBUSY;
51580 @@ -1629,7 +1629,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
51581 DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
51582
51583 /* return error if TTY interface open */
51584 - if (info->port.count)
51585 + if (atomic_read(&info->port.count))
51586 return -EBUSY;
51587
51588 if (cmd != SIOCWANDEV)
51589 @@ -2413,7 +2413,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
51590 if (port == NULL)
51591 continue;
51592 spin_lock(&port->lock);
51593 - if ((port->port.count || port->netcount) &&
51594 + if ((atomic_read(&port->port.count) || port->netcount) &&
51595 port->pending_bh && !port->bh_running &&
51596 !port->bh_requested) {
51597 DBGISR(("%s bh queued\n", port->device_name));
51598 @@ -3302,7 +3302,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
51599 spin_lock_irqsave(&info->lock, flags);
51600 if (!tty_hung_up_p(filp)) {
51601 extra_count = true;
51602 - port->count--;
51603 + atomic_dec(&port->count);
51604 }
51605 spin_unlock_irqrestore(&info->lock, flags);
51606 port->blocked_open++;
51607 @@ -3339,7 +3339,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
51608 remove_wait_queue(&port->open_wait, &wait);
51609
51610 if (extra_count)
51611 - port->count++;
51612 + atomic_inc(&port->count);
51613 port->blocked_open--;
51614
51615 if (!retval)
51616 diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
51617 index 53ba853..3c30f6d 100644
51618 --- a/drivers/tty/synclinkmp.c
51619 +++ b/drivers/tty/synclinkmp.c
51620 @@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
51621
51622 if (debug_level >= DEBUG_LEVEL_INFO)
51623 printk("%s(%d):%s open(), old ref count = %d\n",
51624 - __FILE__,__LINE__,tty->driver->name, info->port.count);
51625 + __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
51626
51627 /* If port is closing, signal caller to try again */
51628 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
51629 @@ -769,10 +769,10 @@ static int open(struct tty_struct *tty, struct file *filp)
51630 spin_unlock_irqrestore(&info->netlock, flags);
51631 goto cleanup;
51632 }
51633 - info->port.count++;
51634 + atomic_inc(&info->port.count);
51635 spin_unlock_irqrestore(&info->netlock, flags);
51636
51637 - if (info->port.count == 1) {
51638 + if (atomic_read(&info->port.count) == 1) {
51639 /* 1st open on this device, init hardware */
51640 retval = startup(info);
51641 if (retval < 0)
51642 @@ -796,8 +796,8 @@ cleanup:
51643 if (retval) {
51644 if (tty->count == 1)
51645 info->port.tty = NULL; /* tty layer will release tty struct */
51646 - if(info->port.count)
51647 - info->port.count--;
51648 + if(atomic_read(&info->port.count))
51649 + atomic_dec(&info->port.count);
51650 }
51651
51652 return retval;
51653 @@ -815,7 +815,7 @@ static void close(struct tty_struct *tty, struct file *filp)
51654
51655 if (debug_level >= DEBUG_LEVEL_INFO)
51656 printk("%s(%d):%s close() entry, count=%d\n",
51657 - __FILE__,__LINE__, info->device_name, info->port.count);
51658 + __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
51659
51660 if (tty_port_close_start(&info->port, tty, filp) == 0)
51661 goto cleanup;
51662 @@ -834,7 +834,7 @@ static void close(struct tty_struct *tty, struct file *filp)
51663 cleanup:
51664 if (debug_level >= DEBUG_LEVEL_INFO)
51665 printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
51666 - tty->driver->name, info->port.count);
51667 + tty->driver->name, atomic_read(&info->port.count));
51668 }
51669
51670 /* Called by tty_hangup() when a hangup is signaled.
51671 @@ -857,7 +857,7 @@ static void hangup(struct tty_struct *tty)
51672 shutdown(info);
51673
51674 spin_lock_irqsave(&info->port.lock, flags);
51675 - info->port.count = 0;
51676 + atomic_set(&info->port.count, 0);
51677 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
51678 info->port.tty = NULL;
51679 spin_unlock_irqrestore(&info->port.lock, flags);
51680 @@ -1565,7 +1565,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
51681 unsigned short new_crctype;
51682
51683 /* return error if TTY interface open */
51684 - if (info->port.count)
51685 + if (atomic_read(&info->port.count))
51686 return -EBUSY;
51687
51688 switch (encoding)
51689 @@ -1660,7 +1660,7 @@ static int hdlcdev_open(struct net_device *dev)
51690
51691 /* arbitrate between network and tty opens */
51692 spin_lock_irqsave(&info->netlock, flags);
51693 - if (info->port.count != 0 || info->netcount != 0) {
51694 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
51695 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
51696 spin_unlock_irqrestore(&info->netlock, flags);
51697 return -EBUSY;
51698 @@ -1746,7 +1746,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
51699 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
51700
51701 /* return error if TTY interface open */
51702 - if (info->port.count)
51703 + if (atomic_read(&info->port.count))
51704 return -EBUSY;
51705
51706 if (cmd != SIOCWANDEV)
51707 @@ -2621,7 +2621,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
51708 * do not request bottom half processing if the
51709 * device is not open in a normal mode.
51710 */
51711 - if ( port && (port->port.count || port->netcount) &&
51712 + if ( port && (atomic_read(&port->port.count) || port->netcount) &&
51713 port->pending_bh && !port->bh_running &&
51714 !port->bh_requested ) {
51715 if ( debug_level >= DEBUG_LEVEL_ISR )
51716 @@ -3319,12 +3319,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
51717
51718 if (debug_level >= DEBUG_LEVEL_INFO)
51719 printk("%s(%d):%s block_til_ready() before block, count=%d\n",
51720 - __FILE__,__LINE__, tty->driver->name, port->count );
51721 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51722
51723 spin_lock_irqsave(&info->lock, flags);
51724 if (!tty_hung_up_p(filp)) {
51725 extra_count = true;
51726 - port->count--;
51727 + atomic_dec(&port->count);
51728 }
51729 spin_unlock_irqrestore(&info->lock, flags);
51730 port->blocked_open++;
51731 @@ -3353,7 +3353,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
51732
51733 if (debug_level >= DEBUG_LEVEL_INFO)
51734 printk("%s(%d):%s block_til_ready() count=%d\n",
51735 - __FILE__,__LINE__, tty->driver->name, port->count );
51736 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51737
51738 tty_unlock(tty);
51739 schedule();
51740 @@ -3364,12 +3364,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
51741 remove_wait_queue(&port->open_wait, &wait);
51742
51743 if (extra_count)
51744 - port->count++;
51745 + atomic_inc(&port->count);
51746 port->blocked_open--;
51747
51748 if (debug_level >= DEBUG_LEVEL_INFO)
51749 printk("%s(%d):%s block_til_ready() after, count=%d\n",
51750 - __FILE__,__LINE__, tty->driver->name, port->count );
51751 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
51752
51753 if (!retval)
51754 port->flags |= ASYNC_NORMAL_ACTIVE;
51755 diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
51756 index ce396ec..04a37be 100644
51757 --- a/drivers/tty/sysrq.c
51758 +++ b/drivers/tty/sysrq.c
51759 @@ -1075,7 +1075,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
51760 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
51761 size_t count, loff_t *ppos)
51762 {
51763 - if (count) {
51764 + if (count && capable(CAP_SYS_ADMIN)) {
51765 char c;
51766
51767 if (get_user(c, buf))
51768 diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
51769 index 3411071..86f2cf2 100644
51770 --- a/drivers/tty/tty_io.c
51771 +++ b/drivers/tty/tty_io.c
51772 @@ -3475,7 +3475,7 @@ EXPORT_SYMBOL_GPL(get_current_tty);
51773
51774 void tty_default_fops(struct file_operations *fops)
51775 {
51776 - *fops = tty_fops;
51777 + memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
51778 }
51779
51780 /*
51781 diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
51782 index 2d822aa..a566234 100644
51783 --- a/drivers/tty/tty_ldisc.c
51784 +++ b/drivers/tty/tty_ldisc.c
51785 @@ -71,7 +71,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
51786 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
51787 tty_ldiscs[disc] = new_ldisc;
51788 new_ldisc->num = disc;
51789 - new_ldisc->refcount = 0;
51790 + atomic_set(&new_ldisc->refcount, 0);
51791 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
51792
51793 return ret;
51794 @@ -99,7 +99,7 @@ int tty_unregister_ldisc(int disc)
51795 return -EINVAL;
51796
51797 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
51798 - if (tty_ldiscs[disc]->refcount)
51799 + if (atomic_read(&tty_ldiscs[disc]->refcount))
51800 ret = -EBUSY;
51801 else
51802 tty_ldiscs[disc] = NULL;
51803 @@ -120,7 +120,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
51804 if (ldops) {
51805 ret = ERR_PTR(-EAGAIN);
51806 if (try_module_get(ldops->owner)) {
51807 - ldops->refcount++;
51808 + atomic_inc(&ldops->refcount);
51809 ret = ldops;
51810 }
51811 }
51812 @@ -133,7 +133,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
51813 unsigned long flags;
51814
51815 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
51816 - ldops->refcount--;
51817 + atomic_dec(&ldops->refcount);
51818 module_put(ldops->owner);
51819 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
51820 }
51821 diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
51822 index 3f746c8..2f2fcaa 100644
51823 --- a/drivers/tty/tty_port.c
51824 +++ b/drivers/tty/tty_port.c
51825 @@ -235,7 +235,7 @@ void tty_port_hangup(struct tty_port *port)
51826 unsigned long flags;
51827
51828 spin_lock_irqsave(&port->lock, flags);
51829 - port->count = 0;
51830 + atomic_set(&port->count, 0);
51831 port->flags &= ~ASYNC_NORMAL_ACTIVE;
51832 tty = port->tty;
51833 if (tty)
51834 @@ -393,7 +393,7 @@ int tty_port_block_til_ready(struct tty_port *port,
51835 /* The port lock protects the port counts */
51836 spin_lock_irqsave(&port->lock, flags);
51837 if (!tty_hung_up_p(filp))
51838 - port->count--;
51839 + atomic_dec(&port->count);
51840 port->blocked_open++;
51841 spin_unlock_irqrestore(&port->lock, flags);
51842
51843 @@ -435,7 +435,7 @@ int tty_port_block_til_ready(struct tty_port *port,
51844 we must not mess that up further */
51845 spin_lock_irqsave(&port->lock, flags);
51846 if (!tty_hung_up_p(filp))
51847 - port->count++;
51848 + atomic_inc(&port->count);
51849 port->blocked_open--;
51850 if (retval == 0)
51851 port->flags |= ASYNC_NORMAL_ACTIVE;
51852 @@ -469,19 +469,19 @@ int tty_port_close_start(struct tty_port *port,
51853 return 0;
51854 }
51855
51856 - if (tty->count == 1 && port->count != 1) {
51857 + if (tty->count == 1 && atomic_read(&port->count) != 1) {
51858 printk(KERN_WARNING
51859 "tty_port_close_start: tty->count = 1 port count = %d.\n",
51860 - port->count);
51861 - port->count = 1;
51862 + atomic_read(&port->count));
51863 + atomic_set(&port->count, 1);
51864 }
51865 - if (--port->count < 0) {
51866 + if (atomic_dec_return(&port->count) < 0) {
51867 printk(KERN_WARNING "tty_port_close_start: count = %d\n",
51868 - port->count);
51869 - port->count = 0;
51870 + atomic_read(&port->count));
51871 + atomic_set(&port->count, 0);
51872 }
51873
51874 - if (port->count) {
51875 + if (atomic_read(&port->count)) {
51876 spin_unlock_irqrestore(&port->lock, flags);
51877 return 0;
51878 }
51879 @@ -563,7 +563,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
51880 {
51881 spin_lock_irq(&port->lock);
51882 if (!tty_hung_up_p(filp))
51883 - ++port->count;
51884 + atomic_inc(&port->count);
51885 spin_unlock_irq(&port->lock);
51886 tty_port_tty_set(port, tty);
51887
51888 diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
51889 index d0e3a44..5f8b754 100644
51890 --- a/drivers/tty/vt/keyboard.c
51891 +++ b/drivers/tty/vt/keyboard.c
51892 @@ -641,6 +641,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
51893 kbd->kbdmode == VC_OFF) &&
51894 value != KVAL(K_SAK))
51895 return; /* SAK is allowed even in raw mode */
51896 +
51897 +#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
51898 + {
51899 + void *func = fn_handler[value];
51900 + if (func == fn_show_state || func == fn_show_ptregs ||
51901 + func == fn_show_mem)
51902 + return;
51903 + }
51904 +#endif
51905 +
51906 fn_handler[value](vc);
51907 }
51908
51909 @@ -1776,9 +1786,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
51910 if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
51911 return -EFAULT;
51912
51913 - if (!capable(CAP_SYS_TTY_CONFIG))
51914 - perm = 0;
51915 -
51916 switch (cmd) {
51917 case KDGKBENT:
51918 /* Ensure another thread doesn't free it under us */
51919 @@ -1793,6 +1800,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
51920 spin_unlock_irqrestore(&kbd_event_lock, flags);
51921 return put_user(val, &user_kbe->kb_value);
51922 case KDSKBENT:
51923 + if (!capable(CAP_SYS_TTY_CONFIG))
51924 + perm = 0;
51925 +
51926 if (!perm)
51927 return -EPERM;
51928 if (!i && v == K_NOSUCHMAP) {
51929 @@ -1883,9 +1893,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
51930 int i, j, k;
51931 int ret;
51932
51933 - if (!capable(CAP_SYS_TTY_CONFIG))
51934 - perm = 0;
51935 -
51936 kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
51937 if (!kbs) {
51938 ret = -ENOMEM;
51939 @@ -1919,6 +1926,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
51940 kfree(kbs);
51941 return ((p && *p) ? -EOVERFLOW : 0);
51942 case KDSKBSENT:
51943 + if (!capable(CAP_SYS_TTY_CONFIG))
51944 + perm = 0;
51945 +
51946 if (!perm) {
51947 ret = -EPERM;
51948 goto reterr;
51949 diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
51950 index a673e5b..36e5d32 100644
51951 --- a/drivers/uio/uio.c
51952 +++ b/drivers/uio/uio.c
51953 @@ -25,6 +25,7 @@
51954 #include <linux/kobject.h>
51955 #include <linux/cdev.h>
51956 #include <linux/uio_driver.h>
51957 +#include <asm/local.h>
51958
51959 #define UIO_MAX_DEVICES (1U << MINORBITS)
51960
51961 @@ -32,7 +33,7 @@ struct uio_device {
51962 struct module *owner;
51963 struct device *dev;
51964 int minor;
51965 - atomic_t event;
51966 + atomic_unchecked_t event;
51967 struct fasync_struct *async_queue;
51968 wait_queue_head_t wait;
51969 struct uio_info *info;
51970 @@ -243,7 +244,7 @@ static ssize_t event_show(struct device *dev,
51971 struct device_attribute *attr, char *buf)
51972 {
51973 struct uio_device *idev = dev_get_drvdata(dev);
51974 - return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
51975 + return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
51976 }
51977 static DEVICE_ATTR_RO(event);
51978
51979 @@ -405,7 +406,7 @@ void uio_event_notify(struct uio_info *info)
51980 {
51981 struct uio_device *idev = info->uio_dev;
51982
51983 - atomic_inc(&idev->event);
51984 + atomic_inc_unchecked(&idev->event);
51985 wake_up_interruptible(&idev->wait);
51986 kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
51987 }
51988 @@ -458,7 +459,7 @@ static int uio_open(struct inode *inode, struct file *filep)
51989 }
51990
51991 listener->dev = idev;
51992 - listener->event_count = atomic_read(&idev->event);
51993 + listener->event_count = atomic_read_unchecked(&idev->event);
51994 filep->private_data = listener;
51995
51996 if (idev->info->open) {
51997 @@ -509,7 +510,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
51998 return -EIO;
51999
52000 poll_wait(filep, &idev->wait, wait);
52001 - if (listener->event_count != atomic_read(&idev->event))
52002 + if (listener->event_count != atomic_read_unchecked(&idev->event))
52003 return POLLIN | POLLRDNORM;
52004 return 0;
52005 }
52006 @@ -534,7 +535,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
52007 do {
52008 set_current_state(TASK_INTERRUPTIBLE);
52009
52010 - event_count = atomic_read(&idev->event);
52011 + event_count = atomic_read_unchecked(&idev->event);
52012 if (event_count != listener->event_count) {
52013 if (copy_to_user(buf, &event_count, count))
52014 retval = -EFAULT;
52015 @@ -591,9 +592,13 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
52016 static int uio_find_mem_index(struct vm_area_struct *vma)
52017 {
52018 struct uio_device *idev = vma->vm_private_data;
52019 + unsigned long size;
52020
52021 if (vma->vm_pgoff < MAX_UIO_MAPS) {
52022 - if (idev->info->mem[vma->vm_pgoff].size == 0)
52023 + size = idev->info->mem[vma->vm_pgoff].size;
52024 + if (size == 0)
52025 + return -1;
52026 + if (vma->vm_end - vma->vm_start > size)
52027 return -1;
52028 return (int)vma->vm_pgoff;
52029 }
52030 @@ -825,7 +830,7 @@ int __uio_register_device(struct module *owner,
52031 idev->owner = owner;
52032 idev->info = info;
52033 init_waitqueue_head(&idev->wait);
52034 - atomic_set(&idev->event, 0);
52035 + atomic_set_unchecked(&idev->event, 0);
52036
52037 ret = uio_get_minor(idev);
52038 if (ret)
52039 diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
52040 index 813d4d3..a71934f 100644
52041 --- a/drivers/usb/atm/cxacru.c
52042 +++ b/drivers/usb/atm/cxacru.c
52043 @@ -472,7 +472,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
52044 ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
52045 if (ret < 2)
52046 return -EINVAL;
52047 - if (index < 0 || index > 0x7f)
52048 + if (index > 0x7f)
52049 return -EINVAL;
52050 pos += tmp;
52051
52052 diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
52053 index dada014..1d0d517 100644
52054 --- a/drivers/usb/atm/usbatm.c
52055 +++ b/drivers/usb/atm/usbatm.c
52056 @@ -331,7 +331,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
52057 if (printk_ratelimit())
52058 atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
52059 __func__, vpi, vci);
52060 - atomic_inc(&vcc->stats->rx_err);
52061 + atomic_inc_unchecked(&vcc->stats->rx_err);
52062 return;
52063 }
52064
52065 @@ -358,7 +358,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
52066 if (length > ATM_MAX_AAL5_PDU) {
52067 atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
52068 __func__, length, vcc);
52069 - atomic_inc(&vcc->stats->rx_err);
52070 + atomic_inc_unchecked(&vcc->stats->rx_err);
52071 goto out;
52072 }
52073
52074 @@ -367,14 +367,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
52075 if (sarb->len < pdu_length) {
52076 atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
52077 __func__, pdu_length, sarb->len, vcc);
52078 - atomic_inc(&vcc->stats->rx_err);
52079 + atomic_inc_unchecked(&vcc->stats->rx_err);
52080 goto out;
52081 }
52082
52083 if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
52084 atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
52085 __func__, vcc);
52086 - atomic_inc(&vcc->stats->rx_err);
52087 + atomic_inc_unchecked(&vcc->stats->rx_err);
52088 goto out;
52089 }
52090
52091 @@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
52092 if (printk_ratelimit())
52093 atm_err(instance, "%s: no memory for skb (length: %u)!\n",
52094 __func__, length);
52095 - atomic_inc(&vcc->stats->rx_drop);
52096 + atomic_inc_unchecked(&vcc->stats->rx_drop);
52097 goto out;
52098 }
52099
52100 @@ -414,7 +414,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
52101
52102 vcc->push(vcc, skb);
52103
52104 - atomic_inc(&vcc->stats->rx);
52105 + atomic_inc_unchecked(&vcc->stats->rx);
52106 out:
52107 skb_trim(sarb, 0);
52108 }
52109 @@ -612,7 +612,7 @@ static void usbatm_tx_process(unsigned long data)
52110 struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
52111
52112 usbatm_pop(vcc, skb);
52113 - atomic_inc(&vcc->stats->tx);
52114 + atomic_inc_unchecked(&vcc->stats->tx);
52115
52116 skb = skb_dequeue(&instance->sndqueue);
52117 }
52118 @@ -756,11 +756,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page
52119 if (!left--)
52120 return sprintf(page,
52121 "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
52122 - atomic_read(&atm_dev->stats.aal5.tx),
52123 - atomic_read(&atm_dev->stats.aal5.tx_err),
52124 - atomic_read(&atm_dev->stats.aal5.rx),
52125 - atomic_read(&atm_dev->stats.aal5.rx_err),
52126 - atomic_read(&atm_dev->stats.aal5.rx_drop));
52127 + atomic_read_unchecked(&atm_dev->stats.aal5.tx),
52128 + atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
52129 + atomic_read_unchecked(&atm_dev->stats.aal5.rx),
52130 + atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
52131 + atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
52132
52133 if (!left--) {
52134 if (instance->disconnected)
52135 diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
52136 index 2a3bbdf..91d72cf 100644
52137 --- a/drivers/usb/core/devices.c
52138 +++ b/drivers/usb/core/devices.c
52139 @@ -126,7 +126,7 @@ static const char format_endpt[] =
52140 * time it gets called.
52141 */
52142 static struct device_connect_event {
52143 - atomic_t count;
52144 + atomic_unchecked_t count;
52145 wait_queue_head_t wait;
52146 } device_event = {
52147 .count = ATOMIC_INIT(1),
52148 @@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
52149
52150 void usbfs_conn_disc_event(void)
52151 {
52152 - atomic_add(2, &device_event.count);
52153 + atomic_add_unchecked(2, &device_event.count);
52154 wake_up(&device_event.wait);
52155 }
52156
52157 @@ -652,7 +652,7 @@ static unsigned int usb_device_poll(struct file *file,
52158
52159 poll_wait(file, &device_event.wait, wait);
52160
52161 - event_count = atomic_read(&device_event.count);
52162 + event_count = atomic_read_unchecked(&device_event.count);
52163 if (file->f_version != event_count) {
52164 file->f_version = event_count;
52165 return POLLIN | POLLRDNORM;
52166 diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
52167 index 257876e..4304364 100644
52168 --- a/drivers/usb/core/devio.c
52169 +++ b/drivers/usb/core/devio.c
52170 @@ -187,7 +187,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
52171 struct usb_dev_state *ps = file->private_data;
52172 struct usb_device *dev = ps->dev;
52173 ssize_t ret = 0;
52174 - unsigned len;
52175 + size_t len;
52176 loff_t pos;
52177 int i;
52178
52179 @@ -229,22 +229,22 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
52180 for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
52181 struct usb_config_descriptor *config =
52182 (struct usb_config_descriptor *)dev->rawdescriptors[i];
52183 - unsigned int length = le16_to_cpu(config->wTotalLength);
52184 + size_t length = le16_to_cpu(config->wTotalLength);
52185
52186 if (*ppos < pos + length) {
52187
52188 /* The descriptor may claim to be longer than it
52189 * really is. Here is the actual allocated length. */
52190 - unsigned alloclen =
52191 + size_t alloclen =
52192 le16_to_cpu(dev->config[i].desc.wTotalLength);
52193
52194 - len = length - (*ppos - pos);
52195 + len = length + pos - *ppos;
52196 if (len > nbytes)
52197 len = nbytes;
52198
52199 /* Simply don't write (skip over) unallocated parts */
52200 if (alloclen > (*ppos - pos)) {
52201 - alloclen -= (*ppos - pos);
52202 + alloclen = alloclen + pos - *ppos;
52203 if (copy_to_user(buf,
52204 dev->rawdescriptors[i] + (*ppos - pos),
52205 min(len, alloclen))) {
52206 diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
52207 index 9c4e292..b89877f 100644
52208 --- a/drivers/usb/core/hcd.c
52209 +++ b/drivers/usb/core/hcd.c
52210 @@ -1550,7 +1550,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
52211 */
52212 usb_get_urb(urb);
52213 atomic_inc(&urb->use_count);
52214 - atomic_inc(&urb->dev->urbnum);
52215 + atomic_inc_unchecked(&urb->dev->urbnum);
52216 usbmon_urb_submit(&hcd->self, urb);
52217
52218 /* NOTE requirements on root-hub callers (usbfs and the hub
52219 @@ -1577,7 +1577,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
52220 urb->hcpriv = NULL;
52221 INIT_LIST_HEAD(&urb->urb_list);
52222 atomic_dec(&urb->use_count);
52223 - atomic_dec(&urb->dev->urbnum);
52224 + atomic_dec_unchecked(&urb->dev->urbnum);
52225 if (atomic_read(&urb->reject))
52226 wake_up(&usb_kill_urb_queue);
52227 usb_put_urb(urb);
52228 diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
52229 index 229a73f..ef86f98 100644
52230 --- a/drivers/usb/core/hub.c
52231 +++ b/drivers/usb/core/hub.c
52232 @@ -27,6 +27,7 @@
52233 #include <linux/freezer.h>
52234 #include <linux/random.h>
52235 #include <linux/pm_qos.h>
52236 +#include <linux/grsecurity.h>
52237
52238 #include <asm/uaccess.h>
52239 #include <asm/byteorder.h>
52240 @@ -4512,6 +4513,10 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
52241 goto done;
52242 return;
52243 }
52244 +
52245 + if (gr_handle_new_usb())
52246 + goto done;
52247 +
52248 if (hub_is_superspeed(hub->hdev))
52249 unit_load = 150;
52250 else
52251 diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
52252 index 0c8a7fc..c45b40a 100644
52253 --- a/drivers/usb/core/message.c
52254 +++ b/drivers/usb/core/message.c
52255 @@ -128,7 +128,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
52256 * Return: If successful, the number of bytes transferred. Otherwise, a negative
52257 * error number.
52258 */
52259 -int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
52260 +int __intentional_overflow(-1) usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
52261 __u8 requesttype, __u16 value, __u16 index, void *data,
52262 __u16 size, int timeout)
52263 {
52264 @@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg);
52265 * If successful, 0. Otherwise a negative error number. The number of actual
52266 * bytes transferred will be stored in the @actual_length parameter.
52267 */
52268 -int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
52269 +int __intentional_overflow(-1) usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
52270 void *data, int len, int *actual_length, int timeout)
52271 {
52272 return usb_bulk_msg(usb_dev, pipe, data, len, actual_length, timeout);
52273 @@ -220,7 +220,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg);
52274 * bytes transferred will be stored in the @actual_length parameter.
52275 *
52276 */
52277 -int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
52278 +int __intentional_overflow(-1) usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
52279 void *data, int len, int *actual_length, int timeout)
52280 {
52281 struct urb *urb;
52282 diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
52283 index 1236c60..d47a51c 100644
52284 --- a/drivers/usb/core/sysfs.c
52285 +++ b/drivers/usb/core/sysfs.c
52286 @@ -244,7 +244,7 @@ static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr,
52287 struct usb_device *udev;
52288
52289 udev = to_usb_device(dev);
52290 - return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
52291 + return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
52292 }
52293 static DEVICE_ATTR_RO(urbnum);
52294
52295 diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
52296 index 4d11449..f4ccabf 100644
52297 --- a/drivers/usb/core/usb.c
52298 +++ b/drivers/usb/core/usb.c
52299 @@ -433,7 +433,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
52300 set_dev_node(&dev->dev, dev_to_node(bus->controller));
52301 dev->state = USB_STATE_ATTACHED;
52302 dev->lpm_disable_count = 1;
52303 - atomic_set(&dev->urbnum, 0);
52304 + atomic_set_unchecked(&dev->urbnum, 0);
52305
52306 INIT_LIST_HEAD(&dev->ep0.urb_list);
52307 dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
52308 diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
52309 index 85f398d..d375bbe 100644
52310 --- a/drivers/usb/dwc3/gadget.c
52311 +++ b/drivers/usb/dwc3/gadget.c
52312 @@ -550,8 +550,6 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
52313 if (!usb_endpoint_xfer_isoc(desc))
52314 return 0;
52315
52316 - memset(&trb_link, 0, sizeof(trb_link));
52317 -
52318 /* Link TRB for ISOC. The HWO bit is never reset */
52319 trb_st_hw = &dep->trb_pool[0];
52320
52321 diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
52322 index 8cfc319..4868255 100644
52323 --- a/drivers/usb/early/ehci-dbgp.c
52324 +++ b/drivers/usb/early/ehci-dbgp.c
52325 @@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
52326
52327 #ifdef CONFIG_KGDB
52328 static struct kgdb_io kgdbdbgp_io_ops;
52329 -#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
52330 +static struct kgdb_io kgdbdbgp_io_ops_console;
52331 +#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
52332 #else
52333 #define dbgp_kgdb_mode (0)
52334 #endif
52335 @@ -1043,6 +1044,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
52336 .write_char = kgdbdbgp_write_char,
52337 };
52338
52339 +static struct kgdb_io kgdbdbgp_io_ops_console = {
52340 + .name = "kgdbdbgp",
52341 + .read_char = kgdbdbgp_read_char,
52342 + .write_char = kgdbdbgp_write_char,
52343 + .is_console = 1
52344 +};
52345 +
52346 static int kgdbdbgp_wait_time;
52347
52348 static int __init kgdbdbgp_parse_config(char *str)
52349 @@ -1058,8 +1066,10 @@ static int __init kgdbdbgp_parse_config(char *str)
52350 ptr++;
52351 kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
52352 }
52353 - kgdb_register_io_module(&kgdbdbgp_io_ops);
52354 - kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
52355 + if (early_dbgp_console.index != -1)
52356 + kgdb_register_io_module(&kgdbdbgp_io_ops_console);
52357 + else
52358 + kgdb_register_io_module(&kgdbdbgp_io_ops);
52359
52360 return 0;
52361 }
52362 diff --git a/drivers/usb/gadget/f_uac1.c b/drivers/usb/gadget/f_uac1.c
52363 index 2b4c82d..06a8ee6 100644
52364 --- a/drivers/usb/gadget/f_uac1.c
52365 +++ b/drivers/usb/gadget/f_uac1.c
52366 @@ -13,6 +13,7 @@
52367 #include <linux/kernel.h>
52368 #include <linux/device.h>
52369 #include <linux/atomic.h>
52370 +#include <linux/module.h>
52371
52372 #include "u_uac1.h"
52373
52374 diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
52375 index ad0aca8..8ff84865 100644
52376 --- a/drivers/usb/gadget/u_serial.c
52377 +++ b/drivers/usb/gadget/u_serial.c
52378 @@ -733,9 +733,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
52379 spin_lock_irq(&port->port_lock);
52380
52381 /* already open? Great. */
52382 - if (port->port.count) {
52383 + if (atomic_read(&port->port.count)) {
52384 status = 0;
52385 - port->port.count++;
52386 + atomic_inc(&port->port.count);
52387
52388 /* currently opening/closing? wait ... */
52389 } else if (port->openclose) {
52390 @@ -794,7 +794,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
52391 tty->driver_data = port;
52392 port->port.tty = tty;
52393
52394 - port->port.count = 1;
52395 + atomic_set(&port->port.count, 1);
52396 port->openclose = false;
52397
52398 /* if connected, start the I/O stream */
52399 @@ -836,11 +836,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
52400
52401 spin_lock_irq(&port->port_lock);
52402
52403 - if (port->port.count != 1) {
52404 - if (port->port.count == 0)
52405 + if (atomic_read(&port->port.count) != 1) {
52406 + if (atomic_read(&port->port.count) == 0)
52407 WARN_ON(1);
52408 else
52409 - --port->port.count;
52410 + atomic_dec(&port->port.count);
52411 goto exit;
52412 }
52413
52414 @@ -850,7 +850,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
52415 * and sleep if necessary
52416 */
52417 port->openclose = true;
52418 - port->port.count = 0;
52419 + atomic_set(&port->port.count, 0);
52420
52421 gser = port->port_usb;
52422 if (gser && gser->disconnect)
52423 @@ -1066,7 +1066,7 @@ static int gs_closed(struct gs_port *port)
52424 int cond;
52425
52426 spin_lock_irq(&port->port_lock);
52427 - cond = (port->port.count == 0) && !port->openclose;
52428 + cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
52429 spin_unlock_irq(&port->port_lock);
52430 return cond;
52431 }
52432 @@ -1209,7 +1209,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
52433 /* if it's already open, start I/O ... and notify the serial
52434 * protocol about open/close status (connect/disconnect).
52435 */
52436 - if (port->port.count) {
52437 + if (atomic_read(&port->port.count)) {
52438 pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
52439 gs_start_io(port);
52440 if (gser->connect)
52441 @@ -1256,7 +1256,7 @@ void gserial_disconnect(struct gserial *gser)
52442
52443 port->port_usb = NULL;
52444 gser->ioport = NULL;
52445 - if (port->port.count > 0 || port->openclose) {
52446 + if (atomic_read(&port->port.count) > 0 || port->openclose) {
52447 wake_up_interruptible(&port->drain_wait);
52448 if (port->port.tty)
52449 tty_hangup(port->port.tty);
52450 @@ -1272,7 +1272,7 @@ void gserial_disconnect(struct gserial *gser)
52451
52452 /* finally, free any unused/unusable I/O buffers */
52453 spin_lock_irqsave(&port->port_lock, flags);
52454 - if (port->port.count == 0 && !port->openclose)
52455 + if (atomic_read(&port->port.count) == 0 && !port->openclose)
52456 gs_buf_free(&port->port_write_buf);
52457 gs_free_requests(gser->out, &port->read_pool, NULL);
52458 gs_free_requests(gser->out, &port->read_queue, NULL);
52459 diff --git a/drivers/usb/gadget/u_uac1.c b/drivers/usb/gadget/u_uac1.c
52460 index 7a55fea..cc0ed4f 100644
52461 --- a/drivers/usb/gadget/u_uac1.c
52462 +++ b/drivers/usb/gadget/u_uac1.c
52463 @@ -16,6 +16,7 @@
52464 #include <linux/ctype.h>
52465 #include <linux/random.h>
52466 #include <linux/syscalls.h>
52467 +#include <linux/module.h>
52468
52469 #include "u_uac1.h"
52470
52471 diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
52472 index 7ae0c4d..35521b7 100644
52473 --- a/drivers/usb/host/ehci-hub.c
52474 +++ b/drivers/usb/host/ehci-hub.c
52475 @@ -780,7 +780,7 @@ static struct urb *request_single_step_set_feature_urb(
52476 urb->transfer_flags = URB_DIR_IN;
52477 usb_get_urb(urb);
52478 atomic_inc(&urb->use_count);
52479 - atomic_inc(&urb->dev->urbnum);
52480 + atomic_inc_unchecked(&urb->dev->urbnum);
52481 urb->setup_dma = dma_map_single(
52482 hcd->self.controller,
52483 urb->setup_packet,
52484 @@ -847,7 +847,7 @@ static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
52485 urb->status = -EINPROGRESS;
52486 usb_get_urb(urb);
52487 atomic_inc(&urb->use_count);
52488 - atomic_inc(&urb->dev->urbnum);
52489 + atomic_inc_unchecked(&urb->dev->urbnum);
52490 retval = submit_single_step_set_feature(hcd, urb, 0);
52491 if (!retval && !wait_for_completion_timeout(&done,
52492 msecs_to_jiffies(2000))) {
52493 diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
52494 index d0d8fad..668ef7b 100644
52495 --- a/drivers/usb/host/hwa-hc.c
52496 +++ b/drivers/usb/host/hwa-hc.c
52497 @@ -337,7 +337,10 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
52498 struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
52499 struct wahc *wa = &hwahc->wa;
52500 struct device *dev = &wa->usb_iface->dev;
52501 - u8 mas_le[UWB_NUM_MAS/8];
52502 + u8 *mas_le = kmalloc(UWB_NUM_MAS/8, GFP_KERNEL);
52503 +
52504 + if (mas_le == NULL)
52505 + return -ENOMEM;
52506
52507 /* Set the stream index */
52508 result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
52509 @@ -356,10 +359,12 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
52510 WUSB_REQ_SET_WUSB_MAS,
52511 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
52512 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber,
52513 - mas_le, 32, USB_CTRL_SET_TIMEOUT);
52514 + mas_le, UWB_NUM_MAS/8, USB_CTRL_SET_TIMEOUT);
52515 if (result < 0)
52516 dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result);
52517 out:
52518 + kfree(mas_le);
52519 +
52520 return result;
52521 }
52522
52523 diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
52524 index ba6a5d6..f88f7f3 100644
52525 --- a/drivers/usb/misc/appledisplay.c
52526 +++ b/drivers/usb/misc/appledisplay.c
52527 @@ -83,7 +83,7 @@ struct appledisplay {
52528 spinlock_t lock;
52529 };
52530
52531 -static atomic_t count_displays = ATOMIC_INIT(0);
52532 +static atomic_unchecked_t count_displays = ATOMIC_INIT(0);
52533 static struct workqueue_struct *wq;
52534
52535 static void appledisplay_complete(struct urb *urb)
52536 @@ -281,7 +281,7 @@ static int appledisplay_probe(struct usb_interface *iface,
52537
52538 /* Register backlight device */
52539 snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
52540 - atomic_inc_return(&count_displays) - 1);
52541 + atomic_inc_return_unchecked(&count_displays) - 1);
52542 memset(&props, 0, sizeof(struct backlight_properties));
52543 props.type = BACKLIGHT_RAW;
52544 props.max_brightness = 0xff;
52545 diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
52546 index 8d7fc48..01c4986 100644
52547 --- a/drivers/usb/serial/console.c
52548 +++ b/drivers/usb/serial/console.c
52549 @@ -123,7 +123,7 @@ static int usb_console_setup(struct console *co, char *options)
52550
52551 info->port = port;
52552
52553 - ++port->port.count;
52554 + atomic_inc(&port->port.count);
52555 if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
52556 if (serial->type->set_termios) {
52557 /*
52558 @@ -167,7 +167,7 @@ static int usb_console_setup(struct console *co, char *options)
52559 }
52560 /* Now that any required fake tty operations are completed restore
52561 * the tty port count */
52562 - --port->port.count;
52563 + atomic_dec(&port->port.count);
52564 /* The console is special in terms of closing the device so
52565 * indicate this port is now acting as a system console. */
52566 port->port.console = 1;
52567 @@ -180,7 +180,7 @@ static int usb_console_setup(struct console *co, char *options)
52568 free_tty:
52569 kfree(tty);
52570 reset_open_count:
52571 - port->port.count = 0;
52572 + atomic_set(&port->port.count, 0);
52573 usb_autopm_put_interface(serial->interface);
52574 error_get_interface:
52575 usb_serial_put(serial);
52576 @@ -191,7 +191,7 @@ static int usb_console_setup(struct console *co, char *options)
52577 static void usb_console_write(struct console *co,
52578 const char *buf, unsigned count)
52579 {
52580 - static struct usbcons_info *info = &usbcons_info;
52581 + struct usbcons_info *info = &usbcons_info;
52582 struct usb_serial_port *port = info->port;
52583 struct usb_serial *serial;
52584 int retval = -ENODEV;
52585 diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
52586 index 307e339..6aa97cb 100644
52587 --- a/drivers/usb/storage/usb.h
52588 +++ b/drivers/usb/storage/usb.h
52589 @@ -63,7 +63,7 @@ struct us_unusual_dev {
52590 __u8 useProtocol;
52591 __u8 useTransport;
52592 int (*initFunction)(struct us_data *);
52593 -};
52594 +} __do_const;
52595
52596
52597 /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
52598 diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
52599 index f2a8d29..7bc3fe7 100644
52600 --- a/drivers/usb/wusbcore/wa-hc.h
52601 +++ b/drivers/usb/wusbcore/wa-hc.h
52602 @@ -240,7 +240,7 @@ struct wahc {
52603 spinlock_t xfer_list_lock;
52604 struct work_struct xfer_enqueue_work;
52605 struct work_struct xfer_error_work;
52606 - atomic_t xfer_id_count;
52607 + atomic_unchecked_t xfer_id_count;
52608
52609 kernel_ulong_t quirks;
52610 };
52611 @@ -305,7 +305,7 @@ static inline void wa_init(struct wahc *wa)
52612 INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
52613 INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
52614 wa->dto_in_use = 0;
52615 - atomic_set(&wa->xfer_id_count, 1);
52616 + atomic_set_unchecked(&wa->xfer_id_count, 1);
52617 /* init the buf in URBs */
52618 for (index = 0; index < WA_MAX_BUF_IN_URBS; ++index)
52619 usb_init_urb(&(wa->buf_in_urbs[index]));
52620 diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
52621 index 3e2e4ed..060c9b8 100644
52622 --- a/drivers/usb/wusbcore/wa-xfer.c
52623 +++ b/drivers/usb/wusbcore/wa-xfer.c
52624 @@ -314,7 +314,7 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
52625 */
52626 static void wa_xfer_id_init(struct wa_xfer *xfer)
52627 {
52628 - xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
52629 + xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
52630 }
52631
52632 /* Return the xfer's ID. */
52633 diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
52634 index 512f479..7e041d0 100644
52635 --- a/drivers/vfio/vfio.c
52636 +++ b/drivers/vfio/vfio.c
52637 @@ -487,7 +487,7 @@ static int vfio_group_nb_add_dev(struct vfio_group *group, struct device *dev)
52638 return 0;
52639
52640 /* TODO Prevent device auto probing */
52641 - WARN("Device %s added to live group %d!\n", dev_name(dev),
52642 + WARN(1, "Device %s added to live group %d!\n", dev_name(dev),
52643 iommu_group_id(group->iommu_group));
52644
52645 return 0;
52646 diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
52647 index 5174eba..451e6bc 100644
52648 --- a/drivers/vhost/vringh.c
52649 +++ b/drivers/vhost/vringh.c
52650 @@ -530,17 +530,17 @@ static inline void __vringh_notify_disable(struct vringh *vrh,
52651 /* Userspace access helpers: in this case, addresses are really userspace. */
52652 static inline int getu16_user(u16 *val, const u16 *p)
52653 {
52654 - return get_user(*val, (__force u16 __user *)p);
52655 + return get_user(*val, (u16 __force_user *)p);
52656 }
52657
52658 static inline int putu16_user(u16 *p, u16 val)
52659 {
52660 - return put_user(val, (__force u16 __user *)p);
52661 + return put_user(val, (u16 __force_user *)p);
52662 }
52663
52664 static inline int copydesc_user(void *dst, const void *src, size_t len)
52665 {
52666 - return copy_from_user(dst, (__force void __user *)src, len) ?
52667 + return copy_from_user(dst, (void __force_user *)src, len) ?
52668 -EFAULT : 0;
52669 }
52670
52671 @@ -548,19 +548,19 @@ static inline int putused_user(struct vring_used_elem *dst,
52672 const struct vring_used_elem *src,
52673 unsigned int num)
52674 {
52675 - return copy_to_user((__force void __user *)dst, src,
52676 + return copy_to_user((void __force_user *)dst, src,
52677 sizeof(*dst) * num) ? -EFAULT : 0;
52678 }
52679
52680 static inline int xfer_from_user(void *src, void *dst, size_t len)
52681 {
52682 - return copy_from_user(dst, (__force void __user *)src, len) ?
52683 + return copy_from_user(dst, (void __force_user *)src, len) ?
52684 -EFAULT : 0;
52685 }
52686
52687 static inline int xfer_to_user(void *dst, void *src, size_t len)
52688 {
52689 - return copy_to_user((__force void __user *)dst, src, len) ?
52690 + return copy_to_user((void __force_user *)dst, src, len) ?
52691 -EFAULT : 0;
52692 }
52693
52694 @@ -596,9 +596,9 @@ int vringh_init_user(struct vringh *vrh, u32 features,
52695 vrh->last_used_idx = 0;
52696 vrh->vring.num = num;
52697 /* vring expects kernel addresses, but only used via accessors. */
52698 - vrh->vring.desc = (__force struct vring_desc *)desc;
52699 - vrh->vring.avail = (__force struct vring_avail *)avail;
52700 - vrh->vring.used = (__force struct vring_used *)used;
52701 + vrh->vring.desc = (__force_kernel struct vring_desc *)desc;
52702 + vrh->vring.avail = (__force_kernel struct vring_avail *)avail;
52703 + vrh->vring.used = (__force_kernel struct vring_used *)used;
52704 return 0;
52705 }
52706 EXPORT_SYMBOL(vringh_init_user);
52707 @@ -800,7 +800,7 @@ static inline int getu16_kern(u16 *val, const u16 *p)
52708
52709 static inline int putu16_kern(u16 *p, u16 val)
52710 {
52711 - ACCESS_ONCE(*p) = val;
52712 + ACCESS_ONCE_RW(*p) = val;
52713 return 0;
52714 }
52715
52716 diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
52717 index 84a110a..96312c3 100644
52718 --- a/drivers/video/backlight/kb3886_bl.c
52719 +++ b/drivers/video/backlight/kb3886_bl.c
52720 @@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
52721 static unsigned long kb3886bl_flags;
52722 #define KB3886BL_SUSPENDED 0x01
52723
52724 -static struct dmi_system_id kb3886bl_device_table[] __initdata = {
52725 +static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
52726 {
52727 .ident = "Sahara Touch-iT",
52728 .matches = {
52729 diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c
52730 index 1b0b233..6f34c2c 100644
52731 --- a/drivers/video/fbdev/arcfb.c
52732 +++ b/drivers/video/fbdev/arcfb.c
52733 @@ -458,7 +458,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf,
52734 return -ENOSPC;
52735
52736 err = 0;
52737 - if ((count + p) > fbmemlength) {
52738 + if (count > (fbmemlength - p)) {
52739 count = fbmemlength - p;
52740 err = -ENOSPC;
52741 }
52742 diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
52743 index 52108be..c7c110d 100644
52744 --- a/drivers/video/fbdev/aty/aty128fb.c
52745 +++ b/drivers/video/fbdev/aty/aty128fb.c
52746 @@ -149,7 +149,7 @@ enum {
52747 };
52748
52749 /* Must match above enum */
52750 -static char * const r128_family[] = {
52751 +static const char * const r128_family[] = {
52752 "AGP",
52753 "PCI",
52754 "PRO AGP",
52755 diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
52756 index c3d0074..0b9077e 100644
52757 --- a/drivers/video/fbdev/aty/atyfb_base.c
52758 +++ b/drivers/video/fbdev/aty/atyfb_base.c
52759 @@ -1326,10 +1326,14 @@ static int atyfb_set_par(struct fb_info *info)
52760 par->accel_flags = var->accel_flags; /* hack */
52761
52762 if (var->accel_flags) {
52763 - info->fbops->fb_sync = atyfb_sync;
52764 + pax_open_kernel();
52765 + *(void **)&info->fbops->fb_sync = atyfb_sync;
52766 + pax_close_kernel();
52767 info->flags &= ~FBINFO_HWACCEL_DISABLED;
52768 } else {
52769 - info->fbops->fb_sync = NULL;
52770 + pax_open_kernel();
52771 + *(void **)&info->fbops->fb_sync = NULL;
52772 + pax_close_kernel();
52773 info->flags |= FBINFO_HWACCEL_DISABLED;
52774 }
52775
52776 diff --git a/drivers/video/fbdev/aty/mach64_cursor.c b/drivers/video/fbdev/aty/mach64_cursor.c
52777 index 2fa0317..4983f2a 100644
52778 --- a/drivers/video/fbdev/aty/mach64_cursor.c
52779 +++ b/drivers/video/fbdev/aty/mach64_cursor.c
52780 @@ -8,6 +8,7 @@
52781 #include "../core/fb_draw.h"
52782
52783 #include <asm/io.h>
52784 +#include <asm/pgtable.h>
52785
52786 #ifdef __sparc__
52787 #include <asm/fbio.h>
52788 @@ -218,7 +219,9 @@ int aty_init_cursor(struct fb_info *info)
52789 info->sprite.buf_align = 16; /* and 64 lines tall. */
52790 info->sprite.flags = FB_PIXMAP_IO;
52791
52792 - info->fbops->fb_cursor = atyfb_cursor;
52793 + pax_open_kernel();
52794 + *(void **)&info->fbops->fb_cursor = atyfb_cursor;
52795 + pax_close_kernel();
52796
52797 return 0;
52798 }
52799 diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
52800 index 900aa4e..6d49418 100644
52801 --- a/drivers/video/fbdev/core/fb_defio.c
52802 +++ b/drivers/video/fbdev/core/fb_defio.c
52803 @@ -206,7 +206,9 @@ void fb_deferred_io_init(struct fb_info *info)
52804
52805 BUG_ON(!fbdefio);
52806 mutex_init(&fbdefio->lock);
52807 - info->fbops->fb_mmap = fb_deferred_io_mmap;
52808 + pax_open_kernel();
52809 + *(void **)&info->fbops->fb_mmap = fb_deferred_io_mmap;
52810 + pax_close_kernel();
52811 INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
52812 INIT_LIST_HEAD(&fbdefio->pagelist);
52813 if (fbdefio->delay == 0) /* set a default of 1 s */
52814 @@ -237,7 +239,7 @@ void fb_deferred_io_cleanup(struct fb_info *info)
52815 page->mapping = NULL;
52816 }
52817
52818 - info->fbops->fb_mmap = NULL;
52819 + *(void **)&info->fbops->fb_mmap = NULL;
52820 mutex_destroy(&fbdefio->lock);
52821 }
52822 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
52823 diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
52824 index b6d5008..5bca7bf 100644
52825 --- a/drivers/video/fbdev/core/fbmem.c
52826 +++ b/drivers/video/fbdev/core/fbmem.c
52827 @@ -433,7 +433,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
52828 image->dx += image->width + 8;
52829 }
52830 } else if (rotate == FB_ROTATE_UD) {
52831 - for (x = 0; x < num && image->dx >= 0; x++) {
52832 + for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
52833 info->fbops->fb_imageblit(info, image);
52834 image->dx -= image->width + 8;
52835 }
52836 @@ -445,7 +445,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
52837 image->dy += image->height + 8;
52838 }
52839 } else if (rotate == FB_ROTATE_CCW) {
52840 - for (x = 0; x < num && image->dy >= 0; x++) {
52841 + for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
52842 info->fbops->fb_imageblit(info, image);
52843 image->dy -= image->height + 8;
52844 }
52845 @@ -1179,7 +1179,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
52846 return -EFAULT;
52847 if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES)
52848 return -EINVAL;
52849 - if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX)
52850 + if (con2fb.framebuffer >= FB_MAX)
52851 return -EINVAL;
52852 if (!registered_fb[con2fb.framebuffer])
52853 request_module("fb%d", con2fb.framebuffer);
52854 @@ -1300,7 +1300,7 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
52855 __u32 data;
52856 int err;
52857
52858 - err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
52859 + err = copy_to_user(fix32->id, &fix->id, sizeof(fix32->id));
52860
52861 data = (__u32) (unsigned long) fix->smem_start;
52862 err |= put_user(data, &fix32->smem_start);
52863 diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
52864 index e23392e..8a77540 100644
52865 --- a/drivers/video/fbdev/hyperv_fb.c
52866 +++ b/drivers/video/fbdev/hyperv_fb.c
52867 @@ -235,7 +235,7 @@ static uint screen_fb_size;
52868 static inline int synthvid_send(struct hv_device *hdev,
52869 struct synthvid_msg *msg)
52870 {
52871 - static atomic64_t request_id = ATOMIC64_INIT(0);
52872 + static atomic64_unchecked_t request_id = ATOMIC64_INIT(0);
52873 int ret;
52874
52875 msg->pipe_hdr.type = PIPE_MSG_DATA;
52876 @@ -243,7 +243,7 @@ static inline int synthvid_send(struct hv_device *hdev,
52877
52878 ret = vmbus_sendpacket(hdev->channel, msg,
52879 msg->vid_hdr.size + sizeof(struct pipe_msg_hdr),
52880 - atomic64_inc_return(&request_id),
52881 + atomic64_inc_return_unchecked(&request_id),
52882 VM_PKT_DATA_INBAND, 0);
52883
52884 if (ret)
52885 diff --git a/drivers/video/fbdev/i810/i810_accel.c b/drivers/video/fbdev/i810/i810_accel.c
52886 index 7672d2e..b56437f 100644
52887 --- a/drivers/video/fbdev/i810/i810_accel.c
52888 +++ b/drivers/video/fbdev/i810/i810_accel.c
52889 @@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
52890 }
52891 }
52892 printk("ringbuffer lockup!!!\n");
52893 + printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
52894 i810_report_error(mmio);
52895 par->dev_flags |= LOCKUP;
52896 info->pixmap.scan_align = 1;
52897 diff --git a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
52898 index a01147f..5d896f8 100644
52899 --- a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
52900 +++ b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
52901 @@ -1088,14 +1088,20 @@ static void MGAG100_restore(struct matrox_fb_info *minfo)
52902
52903 #ifdef CONFIG_FB_MATROX_MYSTIQUE
52904 struct matrox_switch matrox_mystique = {
52905 - MGA1064_preinit, MGA1064_reset, MGA1064_init, MGA1064_restore,
52906 + .preinit = MGA1064_preinit,
52907 + .reset = MGA1064_reset,
52908 + .init = MGA1064_init,
52909 + .restore = MGA1064_restore,
52910 };
52911 EXPORT_SYMBOL(matrox_mystique);
52912 #endif
52913
52914 #ifdef CONFIG_FB_MATROX_G
52915 struct matrox_switch matrox_G100 = {
52916 - MGAG100_preinit, MGAG100_reset, MGAG100_init, MGAG100_restore,
52917 + .preinit = MGAG100_preinit,
52918 + .reset = MGAG100_reset,
52919 + .init = MGAG100_init,
52920 + .restore = MGAG100_restore,
52921 };
52922 EXPORT_SYMBOL(matrox_G100);
52923 #endif
52924 diff --git a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
52925 index 195ad7c..09743fc 100644
52926 --- a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
52927 +++ b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
52928 @@ -738,7 +738,10 @@ static int Ti3026_preinit(struct matrox_fb_info *minfo)
52929 }
52930
52931 struct matrox_switch matrox_millennium = {
52932 - Ti3026_preinit, Ti3026_reset, Ti3026_init, Ti3026_restore
52933 + .preinit = Ti3026_preinit,
52934 + .reset = Ti3026_reset,
52935 + .init = Ti3026_init,
52936 + .restore = Ti3026_restore
52937 };
52938 EXPORT_SYMBOL(matrox_millennium);
52939 #endif
52940 diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
52941 index fe92eed..106e085 100644
52942 --- a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
52943 +++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
52944 @@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
52945 struct mb862xxfb_par *par = info->par;
52946
52947 if (info->var.bits_per_pixel == 32) {
52948 - info->fbops->fb_fillrect = cfb_fillrect;
52949 - info->fbops->fb_copyarea = cfb_copyarea;
52950 - info->fbops->fb_imageblit = cfb_imageblit;
52951 + pax_open_kernel();
52952 + *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
52953 + *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
52954 + *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
52955 + pax_close_kernel();
52956 } else {
52957 outreg(disp, GC_L0EM, 3);
52958 - info->fbops->fb_fillrect = mb86290fb_fillrect;
52959 - info->fbops->fb_copyarea = mb86290fb_copyarea;
52960 - info->fbops->fb_imageblit = mb86290fb_imageblit;
52961 + pax_open_kernel();
52962 + *(void **)&info->fbops->fb_fillrect = mb86290fb_fillrect;
52963 + *(void **)&info->fbops->fb_copyarea = mb86290fb_copyarea;
52964 + *(void **)&info->fbops->fb_imageblit = mb86290fb_imageblit;
52965 + pax_close_kernel();
52966 }
52967 outreg(draw, GDC_REG_DRAW_BASE, 0);
52968 outreg(draw, GDC_REG_MODE_MISC, 0x8000);
52969 diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
52970 index def0412..fed6529 100644
52971 --- a/drivers/video/fbdev/nvidia/nvidia.c
52972 +++ b/drivers/video/fbdev/nvidia/nvidia.c
52973 @@ -669,19 +669,23 @@ static int nvidiafb_set_par(struct fb_info *info)
52974 info->fix.line_length = (info->var.xres_virtual *
52975 info->var.bits_per_pixel) >> 3;
52976 if (info->var.accel_flags) {
52977 - info->fbops->fb_imageblit = nvidiafb_imageblit;
52978 - info->fbops->fb_fillrect = nvidiafb_fillrect;
52979 - info->fbops->fb_copyarea = nvidiafb_copyarea;
52980 - info->fbops->fb_sync = nvidiafb_sync;
52981 + pax_open_kernel();
52982 + *(void **)&info->fbops->fb_imageblit = nvidiafb_imageblit;
52983 + *(void **)&info->fbops->fb_fillrect = nvidiafb_fillrect;
52984 + *(void **)&info->fbops->fb_copyarea = nvidiafb_copyarea;
52985 + *(void **)&info->fbops->fb_sync = nvidiafb_sync;
52986 + pax_close_kernel();
52987 info->pixmap.scan_align = 4;
52988 info->flags &= ~FBINFO_HWACCEL_DISABLED;
52989 info->flags |= FBINFO_READS_FAST;
52990 NVResetGraphics(info);
52991 } else {
52992 - info->fbops->fb_imageblit = cfb_imageblit;
52993 - info->fbops->fb_fillrect = cfb_fillrect;
52994 - info->fbops->fb_copyarea = cfb_copyarea;
52995 - info->fbops->fb_sync = NULL;
52996 + pax_open_kernel();
52997 + *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
52998 + *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
52999 + *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
53000 + *(void **)&info->fbops->fb_sync = NULL;
53001 + pax_close_kernel();
53002 info->pixmap.scan_align = 1;
53003 info->flags |= FBINFO_HWACCEL_DISABLED;
53004 info->flags &= ~FBINFO_READS_FAST;
53005 @@ -1173,8 +1177,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
53006 info->pixmap.size = 8 * 1024;
53007 info->pixmap.flags = FB_PIXMAP_SYSTEM;
53008
53009 - if (!hwcur)
53010 - info->fbops->fb_cursor = NULL;
53011 + if (!hwcur) {
53012 + pax_open_kernel();
53013 + *(void **)&info->fbops->fb_cursor = NULL;
53014 + pax_close_kernel();
53015 + }
53016
53017 info->var.accel_flags = (!noaccel);
53018
53019 diff --git a/drivers/video/fbdev/omap2/dss/display.c b/drivers/video/fbdev/omap2/dss/display.c
53020 index 2412a0d..294215b 100644
53021 --- a/drivers/video/fbdev/omap2/dss/display.c
53022 +++ b/drivers/video/fbdev/omap2/dss/display.c
53023 @@ -161,12 +161,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
53024 if (dssdev->name == NULL)
53025 dssdev->name = dssdev->alias;
53026
53027 + pax_open_kernel();
53028 if (drv && drv->get_resolution == NULL)
53029 - drv->get_resolution = omapdss_default_get_resolution;
53030 + *(void **)&drv->get_resolution = omapdss_default_get_resolution;
53031 if (drv && drv->get_recommended_bpp == NULL)
53032 - drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
53033 + *(void **)&drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
53034 if (drv && drv->get_timings == NULL)
53035 - drv->get_timings = omapdss_default_get_timings;
53036 + *(void **)&drv->get_timings = omapdss_default_get_timings;
53037 + pax_close_kernel();
53038
53039 mutex_lock(&panel_list_mutex);
53040 list_add_tail(&dssdev->panel_list, &panel_list);
53041 diff --git a/drivers/video/fbdev/s1d13xxxfb.c b/drivers/video/fbdev/s1d13xxxfb.c
53042 index 83433cb..71e9b98 100644
53043 --- a/drivers/video/fbdev/s1d13xxxfb.c
53044 +++ b/drivers/video/fbdev/s1d13xxxfb.c
53045 @@ -881,8 +881,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
53046
53047 switch(prod_id) {
53048 case S1D13506_PROD_ID: /* activate acceleration */
53049 - s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
53050 - s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
53051 + pax_open_kernel();
53052 + *(void **)&s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
53053 + *(void **)&s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
53054 + pax_close_kernel();
53055 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
53056 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
53057 break;
53058 diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
53059 index 2bcc84a..29dd1ea 100644
53060 --- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
53061 +++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
53062 @@ -439,9 +439,9 @@ static unsigned long lcdc_sys_read_data(void *handle)
53063 }
53064
53065 static struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
53066 - lcdc_sys_write_index,
53067 - lcdc_sys_write_data,
53068 - lcdc_sys_read_data,
53069 + .write_index = lcdc_sys_write_index,
53070 + .write_data = lcdc_sys_write_data,
53071 + .read_data = lcdc_sys_read_data,
53072 };
53073
53074 static int sh_mobile_lcdc_sginit(struct fb_info *info,
53075 diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
53076 index d513ed6..90b0de9 100644
53077 --- a/drivers/video/fbdev/smscufx.c
53078 +++ b/drivers/video/fbdev/smscufx.c
53079 @@ -1175,7 +1175,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
53080 fb_deferred_io_cleanup(info);
53081 kfree(info->fbdefio);
53082 info->fbdefio = NULL;
53083 - info->fbops->fb_mmap = ufx_ops_mmap;
53084 + pax_open_kernel();
53085 + *(void **)&info->fbops->fb_mmap = ufx_ops_mmap;
53086 + pax_close_kernel();
53087 }
53088
53089 pr_debug("released /dev/fb%d user=%d count=%d",
53090 diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
53091 index 77b890e..458e666 100644
53092 --- a/drivers/video/fbdev/udlfb.c
53093 +++ b/drivers/video/fbdev/udlfb.c
53094 @@ -623,11 +623,11 @@ static int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
53095 dlfb_urb_completion(urb);
53096
53097 error:
53098 - atomic_add(bytes_sent, &dev->bytes_sent);
53099 - atomic_add(bytes_identical, &dev->bytes_identical);
53100 - atomic_add(width*height*2, &dev->bytes_rendered);
53101 + atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
53102 + atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
53103 + atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
53104 end_cycles = get_cycles();
53105 - atomic_add(((unsigned int) ((end_cycles - start_cycles)
53106 + atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
53107 >> 10)), /* Kcycles */
53108 &dev->cpu_kcycles_used);
53109
53110 @@ -748,11 +748,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
53111 dlfb_urb_completion(urb);
53112
53113 error:
53114 - atomic_add(bytes_sent, &dev->bytes_sent);
53115 - atomic_add(bytes_identical, &dev->bytes_identical);
53116 - atomic_add(bytes_rendered, &dev->bytes_rendered);
53117 + atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
53118 + atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
53119 + atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
53120 end_cycles = get_cycles();
53121 - atomic_add(((unsigned int) ((end_cycles - start_cycles)
53122 + atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
53123 >> 10)), /* Kcycles */
53124 &dev->cpu_kcycles_used);
53125 }
53126 @@ -993,7 +993,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
53127 fb_deferred_io_cleanup(info);
53128 kfree(info->fbdefio);
53129 info->fbdefio = NULL;
53130 - info->fbops->fb_mmap = dlfb_ops_mmap;
53131 + pax_open_kernel();
53132 + *(void **)&info->fbops->fb_mmap = dlfb_ops_mmap;
53133 + pax_close_kernel();
53134 }
53135
53136 pr_warn("released /dev/fb%d user=%d count=%d\n",
53137 @@ -1376,7 +1378,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
53138 struct fb_info *fb_info = dev_get_drvdata(fbdev);
53139 struct dlfb_data *dev = fb_info->par;
53140 return snprintf(buf, PAGE_SIZE, "%u\n",
53141 - atomic_read(&dev->bytes_rendered));
53142 + atomic_read_unchecked(&dev->bytes_rendered));
53143 }
53144
53145 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
53146 @@ -1384,7 +1386,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
53147 struct fb_info *fb_info = dev_get_drvdata(fbdev);
53148 struct dlfb_data *dev = fb_info->par;
53149 return snprintf(buf, PAGE_SIZE, "%u\n",
53150 - atomic_read(&dev->bytes_identical));
53151 + atomic_read_unchecked(&dev->bytes_identical));
53152 }
53153
53154 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
53155 @@ -1392,7 +1394,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
53156 struct fb_info *fb_info = dev_get_drvdata(fbdev);
53157 struct dlfb_data *dev = fb_info->par;
53158 return snprintf(buf, PAGE_SIZE, "%u\n",
53159 - atomic_read(&dev->bytes_sent));
53160 + atomic_read_unchecked(&dev->bytes_sent));
53161 }
53162
53163 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
53164 @@ -1400,7 +1402,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
53165 struct fb_info *fb_info = dev_get_drvdata(fbdev);
53166 struct dlfb_data *dev = fb_info->par;
53167 return snprintf(buf, PAGE_SIZE, "%u\n",
53168 - atomic_read(&dev->cpu_kcycles_used));
53169 + atomic_read_unchecked(&dev->cpu_kcycles_used));
53170 }
53171
53172 static ssize_t edid_show(
53173 @@ -1460,10 +1462,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
53174 struct fb_info *fb_info = dev_get_drvdata(fbdev);
53175 struct dlfb_data *dev = fb_info->par;
53176
53177 - atomic_set(&dev->bytes_rendered, 0);
53178 - atomic_set(&dev->bytes_identical, 0);
53179 - atomic_set(&dev->bytes_sent, 0);
53180 - atomic_set(&dev->cpu_kcycles_used, 0);
53181 + atomic_set_unchecked(&dev->bytes_rendered, 0);
53182 + atomic_set_unchecked(&dev->bytes_identical, 0);
53183 + atomic_set_unchecked(&dev->bytes_sent, 0);
53184 + atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
53185
53186 return count;
53187 }
53188 diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
53189 index 509d452..7c9d2de 100644
53190 --- a/drivers/video/fbdev/uvesafb.c
53191 +++ b/drivers/video/fbdev/uvesafb.c
53192 @@ -19,6 +19,7 @@
53193 #include <linux/io.h>
53194 #include <linux/mutex.h>
53195 #include <linux/slab.h>
53196 +#include <linux/moduleloader.h>
53197 #include <video/edid.h>
53198 #include <video/uvesafb.h>
53199 #ifdef CONFIG_X86
53200 @@ -565,10 +566,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
53201 if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
53202 par->pmi_setpal = par->ypan = 0;
53203 } else {
53204 +
53205 +#ifdef CONFIG_PAX_KERNEXEC
53206 +#ifdef CONFIG_MODULES
53207 + par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
53208 +#endif
53209 + if (!par->pmi_code) {
53210 + par->pmi_setpal = par->ypan = 0;
53211 + return 0;
53212 + }
53213 +#endif
53214 +
53215 par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
53216 + task->t.regs.edi);
53217 +
53218 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53219 + pax_open_kernel();
53220 + memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
53221 + pax_close_kernel();
53222 +
53223 + par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
53224 + par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
53225 +#else
53226 par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
53227 par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
53228 +#endif
53229 +
53230 printk(KERN_INFO "uvesafb: protected mode interface info at "
53231 "%04x:%04x\n",
53232 (u16)task->t.regs.es, (u16)task->t.regs.edi);
53233 @@ -813,13 +836,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
53234 par->ypan = ypan;
53235
53236 if (par->pmi_setpal || par->ypan) {
53237 +#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
53238 if (__supported_pte_mask & _PAGE_NX) {
53239 par->pmi_setpal = par->ypan = 0;
53240 printk(KERN_WARNING "uvesafb: NX protection is active, "
53241 "better not use the PMI.\n");
53242 - } else {
53243 + } else
53244 +#endif
53245 uvesafb_vbe_getpmi(task, par);
53246 - }
53247 }
53248 #else
53249 /* The protected mode interface is not available on non-x86. */
53250 @@ -1453,8 +1477,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
53251 info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
53252
53253 /* Disable blanking if the user requested so. */
53254 - if (!blank)
53255 - info->fbops->fb_blank = NULL;
53256 + if (!blank) {
53257 + pax_open_kernel();
53258 + *(void **)&info->fbops->fb_blank = NULL;
53259 + pax_close_kernel();
53260 + }
53261
53262 /*
53263 * Find out how much IO memory is required for the mode with
53264 @@ -1525,8 +1552,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
53265 info->flags = FBINFO_FLAG_DEFAULT |
53266 (par->ypan ? FBINFO_HWACCEL_YPAN : 0);
53267
53268 - if (!par->ypan)
53269 - info->fbops->fb_pan_display = NULL;
53270 + if (!par->ypan) {
53271 + pax_open_kernel();
53272 + *(void **)&info->fbops->fb_pan_display = NULL;
53273 + pax_close_kernel();
53274 + }
53275 }
53276
53277 static void uvesafb_init_mtrr(struct fb_info *info)
53278 @@ -1787,6 +1817,11 @@ out_mode:
53279 out:
53280 kfree(par->vbe_modes);
53281
53282 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53283 + if (par->pmi_code)
53284 + module_free_exec(NULL, par->pmi_code);
53285 +#endif
53286 +
53287 framebuffer_release(info);
53288 return err;
53289 }
53290 @@ -1811,6 +1846,11 @@ static int uvesafb_remove(struct platform_device *dev)
53291 kfree(par->vbe_state_orig);
53292 kfree(par->vbe_state_saved);
53293
53294 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53295 + if (par->pmi_code)
53296 + module_free_exec(NULL, par->pmi_code);
53297 +#endif
53298 +
53299 framebuffer_release(info);
53300 }
53301 return 0;
53302 diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
53303 index 6170e7f..dd63031 100644
53304 --- a/drivers/video/fbdev/vesafb.c
53305 +++ b/drivers/video/fbdev/vesafb.c
53306 @@ -9,6 +9,7 @@
53307 */
53308
53309 #include <linux/module.h>
53310 +#include <linux/moduleloader.h>
53311 #include <linux/kernel.h>
53312 #include <linux/errno.h>
53313 #include <linux/string.h>
53314 @@ -52,8 +53,8 @@ static int vram_remap; /* Set amount of memory to be used */
53315 static int vram_total; /* Set total amount of memory */
53316 static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
53317 static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
53318 -static void (*pmi_start)(void) __read_mostly;
53319 -static void (*pmi_pal) (void) __read_mostly;
53320 +static void (*pmi_start)(void) __read_only;
53321 +static void (*pmi_pal) (void) __read_only;
53322 static int depth __read_mostly;
53323 static int vga_compat __read_mostly;
53324 /* --------------------------------------------------------------------- */
53325 @@ -233,6 +234,7 @@ static int vesafb_probe(struct platform_device *dev)
53326 unsigned int size_remap;
53327 unsigned int size_total;
53328 char *option = NULL;
53329 + void *pmi_code = NULL;
53330
53331 /* ignore error return of fb_get_options */
53332 fb_get_options("vesafb", &option);
53333 @@ -279,10 +281,6 @@ static int vesafb_probe(struct platform_device *dev)
53334 size_remap = size_total;
53335 vesafb_fix.smem_len = size_remap;
53336
53337 -#ifndef __i386__
53338 - screen_info.vesapm_seg = 0;
53339 -#endif
53340 -
53341 if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
53342 printk(KERN_WARNING
53343 "vesafb: cannot reserve video memory at 0x%lx\n",
53344 @@ -312,9 +310,21 @@ static int vesafb_probe(struct platform_device *dev)
53345 printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
53346 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
53347
53348 +#ifdef __i386__
53349 +
53350 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53351 + pmi_code = module_alloc_exec(screen_info.vesapm_size);
53352 + if (!pmi_code)
53353 +#elif !defined(CONFIG_PAX_KERNEXEC)
53354 + if (0)
53355 +#endif
53356 +
53357 +#endif
53358 + screen_info.vesapm_seg = 0;
53359 +
53360 if (screen_info.vesapm_seg) {
53361 - printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
53362 - screen_info.vesapm_seg,screen_info.vesapm_off);
53363 + printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
53364 + screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
53365 }
53366
53367 if (screen_info.vesapm_seg < 0xc000)
53368 @@ -322,9 +332,25 @@ static int vesafb_probe(struct platform_device *dev)
53369
53370 if (ypan || pmi_setpal) {
53371 unsigned short *pmi_base;
53372 +
53373 pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
53374 - pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
53375 - pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
53376 +
53377 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53378 + pax_open_kernel();
53379 + memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
53380 +#else
53381 + pmi_code = pmi_base;
53382 +#endif
53383 +
53384 + pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
53385 + pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
53386 +
53387 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53388 + pmi_start = ktva_ktla(pmi_start);
53389 + pmi_pal = ktva_ktla(pmi_pal);
53390 + pax_close_kernel();
53391 +#endif
53392 +
53393 printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
53394 if (pmi_base[3]) {
53395 printk(KERN_INFO "vesafb: pmi: ports = ");
53396 @@ -477,8 +503,11 @@ static int vesafb_probe(struct platform_device *dev)
53397 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
53398 (ypan ? FBINFO_HWACCEL_YPAN : 0);
53399
53400 - if (!ypan)
53401 - info->fbops->fb_pan_display = NULL;
53402 + if (!ypan) {
53403 + pax_open_kernel();
53404 + *(void **)&info->fbops->fb_pan_display = NULL;
53405 + pax_close_kernel();
53406 + }
53407
53408 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
53409 err = -ENOMEM;
53410 @@ -492,6 +521,11 @@ static int vesafb_probe(struct platform_device *dev)
53411 fb_info(info, "%s frame buffer device\n", info->fix.id);
53412 return 0;
53413 err:
53414 +
53415 +#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
53416 + module_free_exec(NULL, pmi_code);
53417 +#endif
53418 +
53419 if (info->screen_base)
53420 iounmap(info->screen_base);
53421 framebuffer_release(info);
53422 diff --git a/drivers/video/fbdev/via/via_clock.h b/drivers/video/fbdev/via/via_clock.h
53423 index 88714ae..16c2e11 100644
53424 --- a/drivers/video/fbdev/via/via_clock.h
53425 +++ b/drivers/video/fbdev/via/via_clock.h
53426 @@ -56,7 +56,7 @@ struct via_clock {
53427
53428 void (*set_engine_pll_state)(u8 state);
53429 void (*set_engine_pll)(struct via_pll_config config);
53430 -};
53431 +} __no_const;
53432
53433
53434 static inline u32 get_pll_internal_frequency(u32 ref_freq,
53435 diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
53436 index 3c14e43..2630570 100644
53437 --- a/drivers/video/logo/logo_linux_clut224.ppm
53438 +++ b/drivers/video/logo/logo_linux_clut224.ppm
53439 @@ -2,1603 +2,1123 @@ P3
53440 # Standard 224-color Linux logo
53441 80 80
53442 255
53443 - 0 0 0 0 0 0 0 0 0 0 0 0
53444 - 0 0 0 0 0 0 0 0 0 0 0 0
53445 - 0 0 0 0 0 0 0 0 0 0 0 0
53446 - 0 0 0 0 0 0 0 0 0 0 0 0
53447 - 0 0 0 0 0 0 0 0 0 0 0 0
53448 - 0 0 0 0 0 0 0 0 0 0 0 0
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56025 +4 4 4 5 5 5 5 5 5 4 3 3 5 5 5 4 3 3
56026 +5 5 5 5 5 5 6 6 6 6 6 6 4 0 0 4 0 0
56027 +4 0 0 4 0 0 26 28 28 125 124 125 174 174 174 193 200 203
56028 +193 200 203 174 174 174 193 200 203 167 166 167 125 124 125 6 6 6
56029 +6 6 6 6 6 6 4 0 0 6 6 6 6 6 6 5 5 5
56030 +4 3 3 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4
56031 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56032 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56033 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56034 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56035 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56036 +4 4 4 4 4 4
56037 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56038 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56039 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5
56040 +4 3 3 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6
56041 +6 6 6 4 0 0 4 0 0 6 6 6 37 38 37 125 124 125
56042 +153 152 153 131 129 131 125 124 125 37 38 37 6 6 6 6 6 6
56043 +6 6 6 4 0 0 6 6 6 6 6 6 4 3 3 5 5 5
56044 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56045 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56046 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56047 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56048 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56049 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56050 +4 4 4 4 4 4
56051 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56052 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56053 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56054 +4 4 4 5 5 5 5 5 5 4 3 3 5 5 5 4 3 3
56055 +6 6 6 6 6 6 4 0 0 4 0 0 6 6 6 6 6 6
56056 +24 26 27 24 26 27 6 6 6 6 6 6 6 6 6 4 0 0
56057 +6 6 6 6 6 6 4 0 0 6 6 6 5 5 5 4 3 3
56058 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56059 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56060 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56061 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56062 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56063 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56064 +4 4 4 4 4 4
56065 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56066 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56067 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56068 +4 4 4 4 4 4 5 5 5 4 3 3 5 5 5 6 6 6
56069 +4 0 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
56070 +6 6 6 6 6 6 6 6 6 4 0 0 6 6 6 6 6 6
56071 +4 0 0 6 6 6 6 6 6 4 3 3 5 5 5 4 4 4
56072 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56073 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56074 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56075 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56076 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56077 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56078 +4 4 4 4 4 4
56079 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56080 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56081 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56082 +4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 5 5 5
56083 +5 5 5 5 5 5 4 0 0 6 6 6 4 0 0 6 6 6
56084 +6 6 6 6 6 6 6 6 6 4 0 0 6 6 6 4 0 0
56085 +6 6 6 4 3 3 5 5 5 4 3 3 5 5 5 4 4 4
56086 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56087 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56088 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56089 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56090 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56091 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56092 +4 4 4 4 4 4
56093 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56094 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56095 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56096 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5
56097 +4 3 3 6 6 6 4 3 3 6 6 6 6 6 6 6 6 6
56098 +4 0 0 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6
56099 +6 6 6 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4
56100 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56101 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56102 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56103 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56104 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56105 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56106 +4 4 4 4 4 4
56107 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56108 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56109 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56110 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56111 +4 4 4 5 5 5 4 3 3 5 5 5 4 0 0 6 6 6
56112 +6 6 6 4 0 0 6 6 6 6 6 6 4 0 0 6 6 6
56113 +4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4
56114 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56115 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56116 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56117 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56118 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56119 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56120 +4 4 4 4 4 4
56121 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56122 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56123 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56124 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56125 +4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 4 3 3
56126 +4 3 3 6 6 6 6 6 6 4 3 3 6 6 6 4 3 3
56127 +5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56128 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56129 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56130 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56131 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56132 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56133 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56134 +4 4 4 4 4 4
56135 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56136 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56137 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56138 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56139 +4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 6 6 6
56140 +5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 5 5 5
56141 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56142 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56143 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56144 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56145 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56146 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56147 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56148 +4 4 4 4 4 4
56149 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56150 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56151 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56152 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56153 +4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3
56154 +5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4
56155 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56156 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56157 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56158 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56159 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56160 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56161 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
56162 +4 4 4 4 4 4
56163 diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
56164 index fef20db..d28b1ab 100644
56165 --- a/drivers/xen/xenfs/xenstored.c
56166 +++ b/drivers/xen/xenfs/xenstored.c
56167 @@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
56168 static int xsd_kva_open(struct inode *inode, struct file *file)
56169 {
56170 file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
56171 +#ifdef CONFIG_GRKERNSEC_HIDESYM
56172 + NULL);
56173 +#else
56174 xen_store_interface);
56175 +#endif
56176 +
56177 if (!file->private_data)
56178 return -ENOMEM;
56179 return 0;
56180 diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
56181 index c71e886..61d3d44b 100644
56182 --- a/fs/9p/vfs_addr.c
56183 +++ b/fs/9p/vfs_addr.c
56184 @@ -187,7 +187,7 @@ static int v9fs_vfs_writepage_locked(struct page *page)
56185
56186 retval = v9fs_file_write_internal(inode,
56187 v9inode->writeback_fid,
56188 - (__force const char __user *)buffer,
56189 + (const char __force_user *)buffer,
56190 len, &offset, 0);
56191 if (retval > 0)
56192 retval = 0;
56193 diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
56194 index 53161ec..e261d8a 100644
56195 --- a/fs/9p/vfs_inode.c
56196 +++ b/fs/9p/vfs_inode.c
56197 @@ -1312,7 +1312,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
56198 void
56199 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
56200 {
56201 - char *s = nd_get_link(nd);
56202 + const char *s = nd_get_link(nd);
56203
56204 p9_debug(P9_DEBUG_VFS, " %s %s\n",
56205 dentry->d_name.name, IS_ERR(s) ? "<error>" : s);
56206 diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
56207 index 370b24c..ff0be7b 100644
56208 --- a/fs/Kconfig.binfmt
56209 +++ b/fs/Kconfig.binfmt
56210 @@ -103,7 +103,7 @@ config HAVE_AOUT
56211
56212 config BINFMT_AOUT
56213 tristate "Kernel support for a.out and ECOFF binaries"
56214 - depends on HAVE_AOUT
56215 + depends on HAVE_AOUT && BROKEN
56216 ---help---
56217 A.out (Assembler.OUTput) is a set of formats for libraries and
56218 executables used in the earliest versions of UNIX. Linux used
56219 diff --git a/fs/afs/inode.c b/fs/afs/inode.c
56220 index 2946712..f737435 100644
56221 --- a/fs/afs/inode.c
56222 +++ b/fs/afs/inode.c
56223 @@ -141,7 +141,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
56224 struct afs_vnode *vnode;
56225 struct super_block *sb;
56226 struct inode *inode;
56227 - static atomic_t afs_autocell_ino;
56228 + static atomic_unchecked_t afs_autocell_ino;
56229
56230 _enter("{%x:%u},%*.*s,",
56231 AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode,
56232 @@ -154,7 +154,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
56233 data.fid.unique = 0;
56234 data.fid.vnode = 0;
56235
56236 - inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino),
56237 + inode = iget5_locked(sb, atomic_inc_return_unchecked(&afs_autocell_ino),
56238 afs_iget5_autocell_test, afs_iget5_set,
56239 &data);
56240 if (!inode) {
56241 diff --git a/fs/aio.c b/fs/aio.c
56242 index e609e15..c9fcd97 100644
56243 --- a/fs/aio.c
56244 +++ b/fs/aio.c
56245 @@ -380,7 +380,7 @@ static int aio_setup_ring(struct kioctx *ctx)
56246 size += sizeof(struct io_event) * nr_events;
56247
56248 nr_pages = PFN_UP(size);
56249 - if (nr_pages < 0)
56250 + if (nr_pages <= 0)
56251 return -EINVAL;
56252
56253 file = aio_private_file(ctx, nr_pages);
56254 diff --git a/fs/attr.c b/fs/attr.c
56255 index 6530ced..4a827e2 100644
56256 --- a/fs/attr.c
56257 +++ b/fs/attr.c
56258 @@ -102,6 +102,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
56259 unsigned long limit;
56260
56261 limit = rlimit(RLIMIT_FSIZE);
56262 + gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
56263 if (limit != RLIM_INFINITY && offset > limit)
56264 goto out_sig;
56265 if (offset > inode->i_sb->s_maxbytes)
56266 diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
56267 index 116fd38..c04182da 100644
56268 --- a/fs/autofs4/waitq.c
56269 +++ b/fs/autofs4/waitq.c
56270 @@ -59,7 +59,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
56271 {
56272 unsigned long sigpipe, flags;
56273 mm_segment_t fs;
56274 - const char *data = (const char *)addr;
56275 + const char __user *data = (const char __force_user *)addr;
56276 ssize_t wr = 0;
56277
56278 sigpipe = sigismember(&current->pending.signal, SIGPIPE);
56279 @@ -340,6 +340,10 @@ static int validate_request(struct autofs_wait_queue **wait,
56280 return 1;
56281 }
56282
56283 +#ifdef CONFIG_GRKERNSEC_HIDESYM
56284 +static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
56285 +#endif
56286 +
56287 int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
56288 enum autofs_notify notify)
56289 {
56290 @@ -385,7 +389,12 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
56291
56292 /* If this is a direct mount request create a dummy name */
56293 if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
56294 +#ifdef CONFIG_GRKERNSEC_HIDESYM
56295 + /* this name does get written to userland via autofs4_write() */
56296 + qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
56297 +#else
56298 qstr.len = sprintf(name, "%p", dentry);
56299 +#endif
56300 else {
56301 qstr.len = autofs4_getpath(sbi, dentry, &name);
56302 if (!qstr.len) {
56303 diff --git a/fs/befs/endian.h b/fs/befs/endian.h
56304 index 2722387..56059b5 100644
56305 --- a/fs/befs/endian.h
56306 +++ b/fs/befs/endian.h
56307 @@ -11,7 +11,7 @@
56308
56309 #include <asm/byteorder.h>
56310
56311 -static inline u64
56312 +static inline u64 __intentional_overflow(-1)
56313 fs64_to_cpu(const struct super_block *sb, fs64 n)
56314 {
56315 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
56316 @@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
56317 return (__force fs64)cpu_to_be64(n);
56318 }
56319
56320 -static inline u32
56321 +static inline u32 __intentional_overflow(-1)
56322 fs32_to_cpu(const struct super_block *sb, fs32 n)
56323 {
56324 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
56325 @@ -47,7 +47,7 @@ cpu_to_fs32(const struct super_block *sb, u32 n)
56326 return (__force fs32)cpu_to_be32(n);
56327 }
56328
56329 -static inline u16
56330 +static inline u16 __intentional_overflow(-1)
56331 fs16_to_cpu(const struct super_block *sb, fs16 n)
56332 {
56333 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
56334 diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
56335 index ca0ba15..0fa3257 100644
56336 --- a/fs/binfmt_aout.c
56337 +++ b/fs/binfmt_aout.c
56338 @@ -16,6 +16,7 @@
56339 #include <linux/string.h>
56340 #include <linux/fs.h>
56341 #include <linux/file.h>
56342 +#include <linux/security.h>
56343 #include <linux/stat.h>
56344 #include <linux/fcntl.h>
56345 #include <linux/ptrace.h>
56346 @@ -58,6 +59,8 @@ static int aout_core_dump(struct coredump_params *cprm)
56347 #endif
56348 # define START_STACK(u) ((void __user *)u.start_stack)
56349
56350 + memset(&dump, 0, sizeof(dump));
56351 +
56352 fs = get_fs();
56353 set_fs(KERNEL_DS);
56354 has_dumped = 1;
56355 @@ -68,10 +71,12 @@ static int aout_core_dump(struct coredump_params *cprm)
56356
56357 /* If the size of the dump file exceeds the rlimit, then see what would happen
56358 if we wrote the stack, but not the data area. */
56359 + gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
56360 if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
56361 dump.u_dsize = 0;
56362
56363 /* Make sure we have enough room to write the stack and data areas. */
56364 + gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
56365 if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
56366 dump.u_ssize = 0;
56367
56368 @@ -232,6 +237,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
56369 rlim = rlimit(RLIMIT_DATA);
56370 if (rlim >= RLIM_INFINITY)
56371 rlim = ~0;
56372 +
56373 + gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
56374 if (ex.a_data + ex.a_bss > rlim)
56375 return -ENOMEM;
56376
56377 @@ -264,6 +271,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
56378
56379 install_exec_creds(bprm);
56380
56381 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
56382 + current->mm->pax_flags = 0UL;
56383 +#endif
56384 +
56385 +#ifdef CONFIG_PAX_PAGEEXEC
56386 + if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
56387 + current->mm->pax_flags |= MF_PAX_PAGEEXEC;
56388 +
56389 +#ifdef CONFIG_PAX_EMUTRAMP
56390 + if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
56391 + current->mm->pax_flags |= MF_PAX_EMUTRAMP;
56392 +#endif
56393 +
56394 +#ifdef CONFIG_PAX_MPROTECT
56395 + if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
56396 + current->mm->pax_flags |= MF_PAX_MPROTECT;
56397 +#endif
56398 +
56399 + }
56400 +#endif
56401 +
56402 if (N_MAGIC(ex) == OMAGIC) {
56403 unsigned long text_addr, map_size;
56404 loff_t pos;
56405 @@ -321,7 +349,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
56406 }
56407
56408 error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
56409 - PROT_READ | PROT_WRITE | PROT_EXEC,
56410 + PROT_READ | PROT_WRITE,
56411 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
56412 fd_offset + ex.a_text);
56413 if (error != N_DATADDR(ex)) {
56414 diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
56415 index aa3cb62..bc53934 100644
56416 --- a/fs/binfmt_elf.c
56417 +++ b/fs/binfmt_elf.c
56418 @@ -34,6 +34,7 @@
56419 #include <linux/utsname.h>
56420 #include <linux/coredump.h>
56421 #include <linux/sched.h>
56422 +#include <linux/xattr.h>
56423 #include <asm/uaccess.h>
56424 #include <asm/param.h>
56425 #include <asm/page.h>
56426 @@ -47,7 +48,7 @@
56427
56428 static int load_elf_binary(struct linux_binprm *bprm);
56429 static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
56430 - int, int, unsigned long);
56431 + int, int, unsigned long) __intentional_overflow(-1);
56432
56433 #ifdef CONFIG_USELIB
56434 static int load_elf_library(struct file *);
56435 @@ -65,6 +66,14 @@ static int elf_core_dump(struct coredump_params *cprm);
56436 #define elf_core_dump NULL
56437 #endif
56438
56439 +#ifdef CONFIG_PAX_MPROTECT
56440 +static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
56441 +#endif
56442 +
56443 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
56444 +static void elf_handle_mmap(struct file *file);
56445 +#endif
56446 +
56447 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
56448 #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
56449 #else
56450 @@ -84,6 +93,15 @@ static struct linux_binfmt elf_format = {
56451 .load_binary = load_elf_binary,
56452 .load_shlib = load_elf_library,
56453 .core_dump = elf_core_dump,
56454 +
56455 +#ifdef CONFIG_PAX_MPROTECT
56456 + .handle_mprotect= elf_handle_mprotect,
56457 +#endif
56458 +
56459 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
56460 + .handle_mmap = elf_handle_mmap,
56461 +#endif
56462 +
56463 .min_coredump = ELF_EXEC_PAGESIZE,
56464 };
56465
56466 @@ -91,6 +109,8 @@ static struct linux_binfmt elf_format = {
56467
56468 static int set_brk(unsigned long start, unsigned long end)
56469 {
56470 + unsigned long e = end;
56471 +
56472 start = ELF_PAGEALIGN(start);
56473 end = ELF_PAGEALIGN(end);
56474 if (end > start) {
56475 @@ -99,7 +119,7 @@ static int set_brk(unsigned long start, unsigned long end)
56476 if (BAD_ADDR(addr))
56477 return addr;
56478 }
56479 - current->mm->start_brk = current->mm->brk = end;
56480 + current->mm->start_brk = current->mm->brk = e;
56481 return 0;
56482 }
56483
56484 @@ -160,12 +180,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
56485 elf_addr_t __user *u_rand_bytes;
56486 const char *k_platform = ELF_PLATFORM;
56487 const char *k_base_platform = ELF_BASE_PLATFORM;
56488 - unsigned char k_rand_bytes[16];
56489 + u32 k_rand_bytes[4];
56490 int items;
56491 elf_addr_t *elf_info;
56492 int ei_index = 0;
56493 const struct cred *cred = current_cred();
56494 struct vm_area_struct *vma;
56495 + unsigned long saved_auxv[AT_VECTOR_SIZE];
56496
56497 /*
56498 * In some cases (e.g. Hyper-Threading), we want to avoid L1
56499 @@ -207,8 +228,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
56500 * Generate 16 random bytes for userspace PRNG seeding.
56501 */
56502 get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
56503 - u_rand_bytes = (elf_addr_t __user *)
56504 - STACK_ALLOC(p, sizeof(k_rand_bytes));
56505 + prandom_seed(k_rand_bytes[0] ^ prandom_u32());
56506 + prandom_seed(k_rand_bytes[1] ^ prandom_u32());
56507 + prandom_seed(k_rand_bytes[2] ^ prandom_u32());
56508 + prandom_seed(k_rand_bytes[3] ^ prandom_u32());
56509 + p = STACK_ROUND(p, sizeof(k_rand_bytes));
56510 + u_rand_bytes = (elf_addr_t __user *) p;
56511 if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
56512 return -EFAULT;
56513
56514 @@ -323,9 +348,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
56515 return -EFAULT;
56516 current->mm->env_end = p;
56517
56518 + memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
56519 +
56520 /* Put the elf_info on the stack in the right place. */
56521 sp = (elf_addr_t __user *)envp + 1;
56522 - if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
56523 + if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
56524 return -EFAULT;
56525 return 0;
56526 }
56527 @@ -393,15 +420,14 @@ static unsigned long total_mapping_size(struct elf_phdr *cmds, int nr)
56528 an ELF header */
56529
56530 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
56531 - struct file *interpreter, unsigned long *interp_map_addr,
56532 - unsigned long no_base)
56533 + struct file *interpreter, unsigned long no_base)
56534 {
56535 struct elf_phdr *elf_phdata;
56536 struct elf_phdr *eppnt;
56537 - unsigned long load_addr = 0;
56538 + unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
56539 int load_addr_set = 0;
56540 unsigned long last_bss = 0, elf_bss = 0;
56541 - unsigned long error = ~0UL;
56542 + unsigned long error = -EINVAL;
56543 unsigned long total_size;
56544 int retval, i, size;
56545
56546 @@ -447,6 +473,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
56547 goto out_close;
56548 }
56549
56550 +#ifdef CONFIG_PAX_SEGMEXEC
56551 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
56552 + pax_task_size = SEGMEXEC_TASK_SIZE;
56553 +#endif
56554 +
56555 eppnt = elf_phdata;
56556 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
56557 if (eppnt->p_type == PT_LOAD) {
56558 @@ -470,8 +501,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
56559 map_addr = elf_map(interpreter, load_addr + vaddr,
56560 eppnt, elf_prot, elf_type, total_size);
56561 total_size = 0;
56562 - if (!*interp_map_addr)
56563 - *interp_map_addr = map_addr;
56564 error = map_addr;
56565 if (BAD_ADDR(map_addr))
56566 goto out_close;
56567 @@ -490,8 +519,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
56568 k = load_addr + eppnt->p_vaddr;
56569 if (BAD_ADDR(k) ||
56570 eppnt->p_filesz > eppnt->p_memsz ||
56571 - eppnt->p_memsz > TASK_SIZE ||
56572 - TASK_SIZE - eppnt->p_memsz < k) {
56573 + eppnt->p_memsz > pax_task_size ||
56574 + pax_task_size - eppnt->p_memsz < k) {
56575 error = -ENOMEM;
56576 goto out_close;
56577 }
56578 @@ -530,9 +559,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
56579 elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
56580
56581 /* Map the last of the bss segment */
56582 - error = vm_brk(elf_bss, last_bss - elf_bss);
56583 - if (BAD_ADDR(error))
56584 - goto out_close;
56585 + if (last_bss > elf_bss) {
56586 + error = vm_brk(elf_bss, last_bss - elf_bss);
56587 + if (BAD_ADDR(error))
56588 + goto out_close;
56589 + }
56590 }
56591
56592 error = load_addr;
56593 @@ -543,6 +574,336 @@ out:
56594 return error;
56595 }
56596
56597 +#ifdef CONFIG_PAX_PT_PAX_FLAGS
56598 +#ifdef CONFIG_PAX_SOFTMODE
56599 +static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
56600 +{
56601 + unsigned long pax_flags = 0UL;
56602 +
56603 +#ifdef CONFIG_PAX_PAGEEXEC
56604 + if (elf_phdata->p_flags & PF_PAGEEXEC)
56605 + pax_flags |= MF_PAX_PAGEEXEC;
56606 +#endif
56607 +
56608 +#ifdef CONFIG_PAX_SEGMEXEC
56609 + if (elf_phdata->p_flags & PF_SEGMEXEC)
56610 + pax_flags |= MF_PAX_SEGMEXEC;
56611 +#endif
56612 +
56613 +#ifdef CONFIG_PAX_EMUTRAMP
56614 + if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
56615 + pax_flags |= MF_PAX_EMUTRAMP;
56616 +#endif
56617 +
56618 +#ifdef CONFIG_PAX_MPROTECT
56619 + if (elf_phdata->p_flags & PF_MPROTECT)
56620 + pax_flags |= MF_PAX_MPROTECT;
56621 +#endif
56622 +
56623 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
56624 + if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
56625 + pax_flags |= MF_PAX_RANDMMAP;
56626 +#endif
56627 +
56628 + return pax_flags;
56629 +}
56630 +#endif
56631 +
56632 +static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
56633 +{
56634 + unsigned long pax_flags = 0UL;
56635 +
56636 +#ifdef CONFIG_PAX_PAGEEXEC
56637 + if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
56638 + pax_flags |= MF_PAX_PAGEEXEC;
56639 +#endif
56640 +
56641 +#ifdef CONFIG_PAX_SEGMEXEC
56642 + if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
56643 + pax_flags |= MF_PAX_SEGMEXEC;
56644 +#endif
56645 +
56646 +#ifdef CONFIG_PAX_EMUTRAMP
56647 + if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
56648 + pax_flags |= MF_PAX_EMUTRAMP;
56649 +#endif
56650 +
56651 +#ifdef CONFIG_PAX_MPROTECT
56652 + if (!(elf_phdata->p_flags & PF_NOMPROTECT))
56653 + pax_flags |= MF_PAX_MPROTECT;
56654 +#endif
56655 +
56656 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
56657 + if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
56658 + pax_flags |= MF_PAX_RANDMMAP;
56659 +#endif
56660 +
56661 + return pax_flags;
56662 +}
56663 +#endif
56664 +
56665 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
56666 +#ifdef CONFIG_PAX_SOFTMODE
56667 +static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
56668 +{
56669 + unsigned long pax_flags = 0UL;
56670 +
56671 +#ifdef CONFIG_PAX_PAGEEXEC
56672 + if (pax_flags_softmode & MF_PAX_PAGEEXEC)
56673 + pax_flags |= MF_PAX_PAGEEXEC;
56674 +#endif
56675 +
56676 +#ifdef CONFIG_PAX_SEGMEXEC
56677 + if (pax_flags_softmode & MF_PAX_SEGMEXEC)
56678 + pax_flags |= MF_PAX_SEGMEXEC;
56679 +#endif
56680 +
56681 +#ifdef CONFIG_PAX_EMUTRAMP
56682 + if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
56683 + pax_flags |= MF_PAX_EMUTRAMP;
56684 +#endif
56685 +
56686 +#ifdef CONFIG_PAX_MPROTECT
56687 + if (pax_flags_softmode & MF_PAX_MPROTECT)
56688 + pax_flags |= MF_PAX_MPROTECT;
56689 +#endif
56690 +
56691 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
56692 + if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
56693 + pax_flags |= MF_PAX_RANDMMAP;
56694 +#endif
56695 +
56696 + return pax_flags;
56697 +}
56698 +#endif
56699 +
56700 +static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
56701 +{
56702 + unsigned long pax_flags = 0UL;
56703 +
56704 +#ifdef CONFIG_PAX_PAGEEXEC
56705 + if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
56706 + pax_flags |= MF_PAX_PAGEEXEC;
56707 +#endif
56708 +
56709 +#ifdef CONFIG_PAX_SEGMEXEC
56710 + if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
56711 + pax_flags |= MF_PAX_SEGMEXEC;
56712 +#endif
56713 +
56714 +#ifdef CONFIG_PAX_EMUTRAMP
56715 + if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
56716 + pax_flags |= MF_PAX_EMUTRAMP;
56717 +#endif
56718 +
56719 +#ifdef CONFIG_PAX_MPROTECT
56720 + if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
56721 + pax_flags |= MF_PAX_MPROTECT;
56722 +#endif
56723 +
56724 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
56725 + if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
56726 + pax_flags |= MF_PAX_RANDMMAP;
56727 +#endif
56728 +
56729 + return pax_flags;
56730 +}
56731 +#endif
56732 +
56733 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
56734 +static unsigned long pax_parse_defaults(void)
56735 +{
56736 + unsigned long pax_flags = 0UL;
56737 +
56738 +#ifdef CONFIG_PAX_SOFTMODE
56739 + if (pax_softmode)
56740 + return pax_flags;
56741 +#endif
56742 +
56743 +#ifdef CONFIG_PAX_PAGEEXEC
56744 + pax_flags |= MF_PAX_PAGEEXEC;
56745 +#endif
56746 +
56747 +#ifdef CONFIG_PAX_SEGMEXEC
56748 + pax_flags |= MF_PAX_SEGMEXEC;
56749 +#endif
56750 +
56751 +#ifdef CONFIG_PAX_MPROTECT
56752 + pax_flags |= MF_PAX_MPROTECT;
56753 +#endif
56754 +
56755 +#ifdef CONFIG_PAX_RANDMMAP
56756 + if (randomize_va_space)
56757 + pax_flags |= MF_PAX_RANDMMAP;
56758 +#endif
56759 +
56760 + return pax_flags;
56761 +}
56762 +
56763 +static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
56764 +{
56765 + unsigned long pax_flags = PAX_PARSE_FLAGS_FALLBACK;
56766 +
56767 +#ifdef CONFIG_PAX_EI_PAX
56768 +
56769 +#ifdef CONFIG_PAX_SOFTMODE
56770 + if (pax_softmode)
56771 + return pax_flags;
56772 +#endif
56773 +
56774 + pax_flags = 0UL;
56775 +
56776 +#ifdef CONFIG_PAX_PAGEEXEC
56777 + if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
56778 + pax_flags |= MF_PAX_PAGEEXEC;
56779 +#endif
56780 +
56781 +#ifdef CONFIG_PAX_SEGMEXEC
56782 + if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
56783 + pax_flags |= MF_PAX_SEGMEXEC;
56784 +#endif
56785 +
56786 +#ifdef CONFIG_PAX_EMUTRAMP
56787 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
56788 + pax_flags |= MF_PAX_EMUTRAMP;
56789 +#endif
56790 +
56791 +#ifdef CONFIG_PAX_MPROTECT
56792 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
56793 + pax_flags |= MF_PAX_MPROTECT;
56794 +#endif
56795 +
56796 +#ifdef CONFIG_PAX_ASLR
56797 + if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
56798 + pax_flags |= MF_PAX_RANDMMAP;
56799 +#endif
56800 +
56801 +#endif
56802 +
56803 + return pax_flags;
56804 +
56805 +}
56806 +
56807 +static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
56808 +{
56809 +
56810 +#ifdef CONFIG_PAX_PT_PAX_FLAGS
56811 + unsigned long i;
56812 +
56813 + for (i = 0UL; i < elf_ex->e_phnum; i++)
56814 + if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
56815 + if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
56816 + ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
56817 + ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
56818 + ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
56819 + ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
56820 + return PAX_PARSE_FLAGS_FALLBACK;
56821 +
56822 +#ifdef CONFIG_PAX_SOFTMODE
56823 + if (pax_softmode)
56824 + return pax_parse_pt_pax_softmode(&elf_phdata[i]);
56825 + else
56826 +#endif
56827 +
56828 + return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
56829 + break;
56830 + }
56831 +#endif
56832 +
56833 + return PAX_PARSE_FLAGS_FALLBACK;
56834 +}
56835 +
56836 +static unsigned long pax_parse_xattr_pax(struct file * const file)
56837 +{
56838 +
56839 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
56840 + ssize_t xattr_size, i;
56841 + unsigned char xattr_value[sizeof("pemrs") - 1];
56842 + unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
56843 +
56844 + xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
56845 + if (xattr_size < 0 || xattr_size > sizeof xattr_value)
56846 + return PAX_PARSE_FLAGS_FALLBACK;
56847 +
56848 + for (i = 0; i < xattr_size; i++)
56849 + switch (xattr_value[i]) {
56850 + default:
56851 + return PAX_PARSE_FLAGS_FALLBACK;
56852 +
56853 +#define parse_flag(option1, option2, flag) \
56854 + case option1: \
56855 + if (pax_flags_hardmode & MF_PAX_##flag) \
56856 + return PAX_PARSE_FLAGS_FALLBACK;\
56857 + pax_flags_hardmode |= MF_PAX_##flag; \
56858 + break; \
56859 + case option2: \
56860 + if (pax_flags_softmode & MF_PAX_##flag) \
56861 + return PAX_PARSE_FLAGS_FALLBACK;\
56862 + pax_flags_softmode |= MF_PAX_##flag; \
56863 + break;
56864 +
56865 + parse_flag('p', 'P', PAGEEXEC);
56866 + parse_flag('e', 'E', EMUTRAMP);
56867 + parse_flag('m', 'M', MPROTECT);
56868 + parse_flag('r', 'R', RANDMMAP);
56869 + parse_flag('s', 'S', SEGMEXEC);
56870 +
56871 +#undef parse_flag
56872 + }
56873 +
56874 + if (pax_flags_hardmode & pax_flags_softmode)
56875 + return PAX_PARSE_FLAGS_FALLBACK;
56876 +
56877 +#ifdef CONFIG_PAX_SOFTMODE
56878 + if (pax_softmode)
56879 + return pax_parse_xattr_pax_softmode(pax_flags_softmode);
56880 + else
56881 +#endif
56882 +
56883 + return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
56884 +#else
56885 + return PAX_PARSE_FLAGS_FALLBACK;
56886 +#endif
56887 +
56888 +}
56889 +
56890 +static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
56891 +{
56892 + unsigned long pax_flags, ei_pax_flags, pt_pax_flags, xattr_pax_flags;
56893 +
56894 + pax_flags = pax_parse_defaults();
56895 + ei_pax_flags = pax_parse_ei_pax(elf_ex);
56896 + pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
56897 + xattr_pax_flags = pax_parse_xattr_pax(file);
56898 +
56899 + if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
56900 + xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
56901 + pt_pax_flags != xattr_pax_flags)
56902 + return -EINVAL;
56903 + if (xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
56904 + pax_flags = xattr_pax_flags;
56905 + else if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
56906 + pax_flags = pt_pax_flags;
56907 + else if (ei_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
56908 + pax_flags = ei_pax_flags;
56909 +
56910 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
56911 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
56912 + if ((__supported_pte_mask & _PAGE_NX))
56913 + pax_flags &= ~MF_PAX_SEGMEXEC;
56914 + else
56915 + pax_flags &= ~MF_PAX_PAGEEXEC;
56916 + }
56917 +#endif
56918 +
56919 + if (0 > pax_check_flags(&pax_flags))
56920 + return -EINVAL;
56921 +
56922 + current->mm->pax_flags = pax_flags;
56923 + return 0;
56924 +}
56925 +#endif
56926 +
56927 /*
56928 * These are the functions used to load ELF style executables and shared
56929 * libraries. There is no binary dependent code anywhere else.
56930 @@ -556,6 +917,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
56931 {
56932 unsigned int random_variable = 0;
56933
56934 +#ifdef CONFIG_PAX_RANDUSTACK
56935 + if (current->mm->pax_flags & MF_PAX_RANDMMAP)
56936 + return stack_top - current->mm->delta_stack;
56937 +#endif
56938 +
56939 if ((current->flags & PF_RANDOMIZE) &&
56940 !(current->personality & ADDR_NO_RANDOMIZE)) {
56941 random_variable = get_random_int() & STACK_RND_MASK;
56942 @@ -574,7 +940,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
56943 unsigned long load_addr = 0, load_bias = 0;
56944 int load_addr_set = 0;
56945 char * elf_interpreter = NULL;
56946 - unsigned long error;
56947 + unsigned long error = 0;
56948 struct elf_phdr *elf_ppnt, *elf_phdata;
56949 unsigned long elf_bss, elf_brk;
56950 int retval, i;
56951 @@ -589,6 +955,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
56952 struct elfhdr elf_ex;
56953 struct elfhdr interp_elf_ex;
56954 } *loc;
56955 + unsigned long pax_task_size;
56956
56957 loc = kmalloc(sizeof(*loc), GFP_KERNEL);
56958 if (!loc) {
56959 @@ -726,6 +1093,77 @@ static int load_elf_binary(struct linux_binprm *bprm)
56960 /* Do this immediately, since STACK_TOP as used in setup_arg_pages
56961 may depend on the personality. */
56962 SET_PERSONALITY(loc->elf_ex);
56963 +
56964 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
56965 + current->mm->pax_flags = 0UL;
56966 +#endif
56967 +
56968 +#ifdef CONFIG_PAX_DLRESOLVE
56969 + current->mm->call_dl_resolve = 0UL;
56970 +#endif
56971 +
56972 +#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
56973 + current->mm->call_syscall = 0UL;
56974 +#endif
56975 +
56976 +#ifdef CONFIG_PAX_ASLR
56977 + current->mm->delta_mmap = 0UL;
56978 + current->mm->delta_stack = 0UL;
56979 +#endif
56980 +
56981 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
56982 + if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
56983 + send_sig(SIGKILL, current, 0);
56984 + goto out_free_dentry;
56985 + }
56986 +#endif
56987 +
56988 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
56989 + pax_set_initial_flags(bprm);
56990 +#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
56991 + if (pax_set_initial_flags_func)
56992 + (pax_set_initial_flags_func)(bprm);
56993 +#endif
56994 +
56995 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
56996 + if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
56997 + current->mm->context.user_cs_limit = PAGE_SIZE;
56998 + current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
56999 + }
57000 +#endif
57001 +
57002 +#ifdef CONFIG_PAX_SEGMEXEC
57003 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
57004 + current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
57005 + current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
57006 + pax_task_size = SEGMEXEC_TASK_SIZE;
57007 + current->mm->def_flags |= VM_NOHUGEPAGE;
57008 + } else
57009 +#endif
57010 +
57011 + pax_task_size = TASK_SIZE;
57012 +
57013 +#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
57014 + if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
57015 + set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
57016 + put_cpu();
57017 + }
57018 +#endif
57019 +
57020 +#ifdef CONFIG_PAX_ASLR
57021 + if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
57022 + current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
57023 + current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
57024 + }
57025 +#endif
57026 +
57027 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
57028 + if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
57029 + executable_stack = EXSTACK_DISABLE_X;
57030 + current->personality &= ~READ_IMPLIES_EXEC;
57031 + } else
57032 +#endif
57033 +
57034 if (elf_read_implies_exec(loc->elf_ex, executable_stack))
57035 current->personality |= READ_IMPLIES_EXEC;
57036
57037 @@ -815,6 +1253,20 @@ static int load_elf_binary(struct linux_binprm *bprm)
57038 #else
57039 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
57040 #endif
57041 +
57042 +#ifdef CONFIG_PAX_RANDMMAP
57043 + /* PaX: randomize base address at the default exe base if requested */
57044 + if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
57045 +#ifdef CONFIG_SPARC64
57046 + load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
57047 +#else
57048 + load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
57049 +#endif
57050 + load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
57051 + elf_flags |= MAP_FIXED;
57052 + }
57053 +#endif
57054 +
57055 }
57056
57057 error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
57058 @@ -847,9 +1299,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
57059 * allowed task size. Note that p_filesz must always be
57060 * <= p_memsz so it is only necessary to check p_memsz.
57061 */
57062 - if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
57063 - elf_ppnt->p_memsz > TASK_SIZE ||
57064 - TASK_SIZE - elf_ppnt->p_memsz < k) {
57065 + if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
57066 + elf_ppnt->p_memsz > pax_task_size ||
57067 + pax_task_size - elf_ppnt->p_memsz < k) {
57068 /* set_brk can never work. Avoid overflows. */
57069 send_sig(SIGKILL, current, 0);
57070 retval = -EINVAL;
57071 @@ -888,17 +1340,45 @@ static int load_elf_binary(struct linux_binprm *bprm)
57072 goto out_free_dentry;
57073 }
57074 if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
57075 - send_sig(SIGSEGV, current, 0);
57076 - retval = -EFAULT; /* Nobody gets to see this, but.. */
57077 - goto out_free_dentry;
57078 + /*
57079 + * This bss-zeroing can fail if the ELF
57080 + * file specifies odd protections. So
57081 + * we don't check the return value
57082 + */
57083 }
57084
57085 +#ifdef CONFIG_PAX_RANDMMAP
57086 + if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
57087 + unsigned long start, size, flags;
57088 + vm_flags_t vm_flags;
57089 +
57090 + start = ELF_PAGEALIGN(elf_brk);
57091 + size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
57092 + flags = MAP_FIXED | MAP_PRIVATE;
57093 + vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
57094 +
57095 + down_write(&current->mm->mmap_sem);
57096 + start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
57097 + retval = -ENOMEM;
57098 + if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
57099 +// if (current->personality & ADDR_NO_RANDOMIZE)
57100 +// vm_flags |= VM_READ | VM_MAYREAD;
57101 + start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
57102 + retval = IS_ERR_VALUE(start) ? start : 0;
57103 + }
57104 + up_write(&current->mm->mmap_sem);
57105 + if (retval == 0)
57106 + retval = set_brk(start + size, start + size + PAGE_SIZE);
57107 + if (retval < 0) {
57108 + send_sig(SIGKILL, current, 0);
57109 + goto out_free_dentry;
57110 + }
57111 + }
57112 +#endif
57113 +
57114 if (elf_interpreter) {
57115 - unsigned long interp_map_addr = 0;
57116 -
57117 elf_entry = load_elf_interp(&loc->interp_elf_ex,
57118 interpreter,
57119 - &interp_map_addr,
57120 load_bias);
57121 if (!IS_ERR((void *)elf_entry)) {
57122 /*
57123 @@ -1122,7 +1602,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
57124 * Decide what to dump of a segment, part, all or none.
57125 */
57126 static unsigned long vma_dump_size(struct vm_area_struct *vma,
57127 - unsigned long mm_flags)
57128 + unsigned long mm_flags, long signr)
57129 {
57130 #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
57131
57132 @@ -1160,7 +1640,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
57133 if (vma->vm_file == NULL)
57134 return 0;
57135
57136 - if (FILTER(MAPPED_PRIVATE))
57137 + if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
57138 goto whole;
57139
57140 /*
57141 @@ -1367,9 +1847,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
57142 {
57143 elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
57144 int i = 0;
57145 - do
57146 + do {
57147 i += 2;
57148 - while (auxv[i - 2] != AT_NULL);
57149 + } while (auxv[i - 2] != AT_NULL);
57150 fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
57151 }
57152
57153 @@ -1378,7 +1858,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
57154 {
57155 mm_segment_t old_fs = get_fs();
57156 set_fs(KERNEL_DS);
57157 - copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
57158 + copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
57159 set_fs(old_fs);
57160 fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
57161 }
57162 @@ -2002,14 +2482,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum,
57163 }
57164
57165 static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma,
57166 - unsigned long mm_flags)
57167 + struct coredump_params *cprm)
57168 {
57169 struct vm_area_struct *vma;
57170 size_t size = 0;
57171
57172 for (vma = first_vma(current, gate_vma); vma != NULL;
57173 vma = next_vma(vma, gate_vma))
57174 - size += vma_dump_size(vma, mm_flags);
57175 + size += vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
57176 return size;
57177 }
57178
57179 @@ -2100,7 +2580,7 @@ static int elf_core_dump(struct coredump_params *cprm)
57180
57181 dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
57182
57183 - offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags);
57184 + offset += elf_core_vma_data_size(gate_vma, cprm);
57185 offset += elf_core_extra_data_size();
57186 e_shoff = offset;
57187
57188 @@ -2128,7 +2608,7 @@ static int elf_core_dump(struct coredump_params *cprm)
57189 phdr.p_offset = offset;
57190 phdr.p_vaddr = vma->vm_start;
57191 phdr.p_paddr = 0;
57192 - phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags);
57193 + phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
57194 phdr.p_memsz = vma->vm_end - vma->vm_start;
57195 offset += phdr.p_filesz;
57196 phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
57197 @@ -2161,7 +2641,7 @@ static int elf_core_dump(struct coredump_params *cprm)
57198 unsigned long addr;
57199 unsigned long end;
57200
57201 - end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags);
57202 + end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
57203
57204 for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
57205 struct page *page;
57206 @@ -2202,6 +2682,167 @@ out:
57207
57208 #endif /* CONFIG_ELF_CORE */
57209
57210 +#ifdef CONFIG_PAX_MPROTECT
57211 +/* PaX: non-PIC ELF libraries need relocations on their executable segments
57212 + * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
57213 + * we'll remove VM_MAYWRITE for good on RELRO segments.
57214 + *
57215 + * The checks favour ld-linux.so behaviour which operates on a per ELF segment
57216 + * basis because we want to allow the common case and not the special ones.
57217 + */
57218 +static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
57219 +{
57220 + struct elfhdr elf_h;
57221 + struct elf_phdr elf_p;
57222 + unsigned long i;
57223 + unsigned long oldflags;
57224 + bool is_textrel_rw, is_textrel_rx, is_relro;
57225 +
57226 + if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT) || !vma->vm_file)
57227 + return;
57228 +
57229 + oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
57230 + newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
57231 +
57232 +#ifdef CONFIG_PAX_ELFRELOCS
57233 + /* possible TEXTREL */
57234 + is_textrel_rw = !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
57235 + is_textrel_rx = vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
57236 +#else
57237 + is_textrel_rw = false;
57238 + is_textrel_rx = false;
57239 +#endif
57240 +
57241 + /* possible RELRO */
57242 + is_relro = vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
57243 +
57244 + if (!is_textrel_rw && !is_textrel_rx && !is_relro)
57245 + return;
57246 +
57247 + if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
57248 + memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
57249 +
57250 +#ifdef CONFIG_PAX_ETEXECRELOCS
57251 + ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
57252 +#else
57253 + ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
57254 +#endif
57255 +
57256 + (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
57257 + !elf_check_arch(&elf_h) ||
57258 + elf_h.e_phentsize != sizeof(struct elf_phdr) ||
57259 + elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
57260 + return;
57261 +
57262 + for (i = 0UL; i < elf_h.e_phnum; i++) {
57263 + if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
57264 + return;
57265 + switch (elf_p.p_type) {
57266 + case PT_DYNAMIC:
57267 + if (!is_textrel_rw && !is_textrel_rx)
57268 + continue;
57269 + i = 0UL;
57270 + while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
57271 + elf_dyn dyn;
57272 +
57273 + if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
57274 + break;
57275 + if (dyn.d_tag == DT_NULL)
57276 + break;
57277 + if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
57278 + gr_log_textrel(vma);
57279 + if (is_textrel_rw)
57280 + vma->vm_flags |= VM_MAYWRITE;
57281 + else
57282 + /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
57283 + vma->vm_flags &= ~VM_MAYWRITE;
57284 + break;
57285 + }
57286 + i++;
57287 + }
57288 + is_textrel_rw = false;
57289 + is_textrel_rx = false;
57290 + continue;
57291 +
57292 + case PT_GNU_RELRO:
57293 + if (!is_relro)
57294 + continue;
57295 + if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
57296 + vma->vm_flags &= ~VM_MAYWRITE;
57297 + is_relro = false;
57298 + continue;
57299 +
57300 +#ifdef CONFIG_PAX_PT_PAX_FLAGS
57301 + case PT_PAX_FLAGS: {
57302 + const char *msg_mprotect = "", *msg_emutramp = "";
57303 + char *buffer_lib, *buffer_exe;
57304 +
57305 + if (elf_p.p_flags & PF_NOMPROTECT)
57306 + msg_mprotect = "MPROTECT disabled";
57307 +
57308 +#ifdef CONFIG_PAX_EMUTRAMP
57309 + if (!(vma->vm_mm->pax_flags & MF_PAX_EMUTRAMP) && !(elf_p.p_flags & PF_NOEMUTRAMP))
57310 + msg_emutramp = "EMUTRAMP enabled";
57311 +#endif
57312 +
57313 + if (!msg_mprotect[0] && !msg_emutramp[0])
57314 + continue;
57315 +
57316 + if (!printk_ratelimit())
57317 + continue;
57318 +
57319 + buffer_lib = (char *)__get_free_page(GFP_KERNEL);
57320 + buffer_exe = (char *)__get_free_page(GFP_KERNEL);
57321 + if (buffer_lib && buffer_exe) {
57322 + char *path_lib, *path_exe;
57323 +
57324 + path_lib = pax_get_path(&vma->vm_file->f_path, buffer_lib, PAGE_SIZE);
57325 + path_exe = pax_get_path(&vma->vm_mm->exe_file->f_path, buffer_exe, PAGE_SIZE);
57326 +
57327 + pr_info("PAX: %s wants %s%s%s on %s\n", path_lib, msg_mprotect,
57328 + (msg_mprotect[0] && msg_emutramp[0] ? " and " : ""), msg_emutramp, path_exe);
57329 +
57330 + }
57331 + free_page((unsigned long)buffer_exe);
57332 + free_page((unsigned long)buffer_lib);
57333 + continue;
57334 + }
57335 +#endif
57336 +
57337 + }
57338 + }
57339 +}
57340 +#endif
57341 +
57342 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
57343 +
57344 +extern int grsec_enable_log_rwxmaps;
57345 +
57346 +static void elf_handle_mmap(struct file *file)
57347 +{
57348 + struct elfhdr elf_h;
57349 + struct elf_phdr elf_p;
57350 + unsigned long i;
57351 +
57352 + if (!grsec_enable_log_rwxmaps)
57353 + return;
57354 +
57355 + if (sizeof(elf_h) != kernel_read(file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
57356 + memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
57357 + (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC) || !elf_check_arch(&elf_h) ||
57358 + elf_h.e_phentsize != sizeof(struct elf_phdr) ||
57359 + elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
57360 + return;
57361 +
57362 + for (i = 0UL; i < elf_h.e_phnum; i++) {
57363 + if (sizeof(elf_p) != kernel_read(file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
57364 + return;
57365 + if (elf_p.p_type == PT_GNU_STACK && (elf_p.p_flags & PF_X))
57366 + gr_log_ptgnustack(file);
57367 + }
57368 +}
57369 +#endif
57370 +
57371 static int __init init_elf_binfmt(void)
57372 {
57373 register_binfmt(&elf_format);
57374 diff --git a/fs/bio.c b/fs/bio.c
57375 index 6f0362b..26a7496 100644
57376 --- a/fs/bio.c
57377 +++ b/fs/bio.c
57378 @@ -1144,7 +1144,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
57379 /*
57380 * Overflow, abort
57381 */
57382 - if (end < start)
57383 + if (end < start || end - start > INT_MAX - nr_pages)
57384 return ERR_PTR(-EINVAL);
57385
57386 nr_pages += end - start;
57387 @@ -1278,7 +1278,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
57388 /*
57389 * Overflow, abort
57390 */
57391 - if (end < start)
57392 + if (end < start || end - start > INT_MAX - nr_pages)
57393 return ERR_PTR(-EINVAL);
57394
57395 nr_pages += end - start;
57396 @@ -1540,7 +1540,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
57397 const int read = bio_data_dir(bio) == READ;
57398 struct bio_map_data *bmd = bio->bi_private;
57399 int i;
57400 - char *p = bmd->sgvecs[0].iov_base;
57401 + char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base;
57402
57403 bio_for_each_segment_all(bvec, bio, i) {
57404 char *addr = page_address(bvec->bv_page);
57405 diff --git a/fs/block_dev.c b/fs/block_dev.c
57406 index 552a8d1..d51ccf3 100644
57407 --- a/fs/block_dev.c
57408 +++ b/fs/block_dev.c
57409 @@ -637,7 +637,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
57410 else if (bdev->bd_contains == bdev)
57411 return true; /* is a whole device which isn't held */
57412
57413 - else if (whole->bd_holder == bd_may_claim)
57414 + else if (whole->bd_holder == (void *)bd_may_claim)
57415 return true; /* is a partition of a device that is being partitioned */
57416 else if (whole->bd_holder != NULL)
57417 return false; /* is a partition of a held device */
57418 diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
57419 index 1bcfcdb..e942132 100644
57420 --- a/fs/btrfs/ctree.c
57421 +++ b/fs/btrfs/ctree.c
57422 @@ -1216,9 +1216,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
57423 free_extent_buffer(buf);
57424 add_root_to_dirty_list(root);
57425 } else {
57426 - if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
57427 - parent_start = parent->start;
57428 - else
57429 + if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
57430 + if (parent)
57431 + parent_start = parent->start;
57432 + else
57433 + parent_start = 0;
57434 + } else
57435 parent_start = 0;
57436
57437 WARN_ON(trans->transid != btrfs_header_generation(parent));
57438 diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
57439 index 33e561a..16df7ae 100644
57440 --- a/fs/btrfs/delayed-inode.c
57441 +++ b/fs/btrfs/delayed-inode.c
57442 @@ -459,7 +459,7 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
57443
57444 static void finish_one_item(struct btrfs_delayed_root *delayed_root)
57445 {
57446 - int seq = atomic_inc_return(&delayed_root->items_seq);
57447 + int seq = atomic_inc_return_unchecked(&delayed_root->items_seq);
57448 if ((atomic_dec_return(&delayed_root->items) <
57449 BTRFS_DELAYED_BACKGROUND || seq % BTRFS_DELAYED_BATCH == 0) &&
57450 waitqueue_active(&delayed_root->wait))
57451 @@ -1409,7 +1409,7 @@ void btrfs_assert_delayed_root_empty(struct btrfs_root *root)
57452
57453 static int could_end_wait(struct btrfs_delayed_root *delayed_root, int seq)
57454 {
57455 - int val = atomic_read(&delayed_root->items_seq);
57456 + int val = atomic_read_unchecked(&delayed_root->items_seq);
57457
57458 if (val < seq || val >= seq + BTRFS_DELAYED_BATCH)
57459 return 1;
57460 @@ -1433,7 +1433,7 @@ void btrfs_balance_delayed_items(struct btrfs_root *root)
57461 int seq;
57462 int ret;
57463
57464 - seq = atomic_read(&delayed_root->items_seq);
57465 + seq = atomic_read_unchecked(&delayed_root->items_seq);
57466
57467 ret = btrfs_wq_run_delayed_node(delayed_root, root, 0);
57468 if (ret)
57469 diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
57470 index f70119f..ab5894d 100644
57471 --- a/fs/btrfs/delayed-inode.h
57472 +++ b/fs/btrfs/delayed-inode.h
57473 @@ -43,7 +43,7 @@ struct btrfs_delayed_root {
57474 */
57475 struct list_head prepare_list;
57476 atomic_t items; /* for delayed items */
57477 - atomic_t items_seq; /* for delayed items */
57478 + atomic_unchecked_t items_seq; /* for delayed items */
57479 int nodes; /* for delayed nodes */
57480 wait_queue_head_t wait;
57481 };
57482 @@ -90,7 +90,7 @@ static inline void btrfs_init_delayed_root(
57483 struct btrfs_delayed_root *delayed_root)
57484 {
57485 atomic_set(&delayed_root->items, 0);
57486 - atomic_set(&delayed_root->items_seq, 0);
57487 + atomic_set_unchecked(&delayed_root->items_seq, 0);
57488 delayed_root->nodes = 0;
57489 spin_lock_init(&delayed_root->lock);
57490 init_waitqueue_head(&delayed_root->wait);
57491 diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
57492 index 2f6d7b1..f186382 100644
57493 --- a/fs/btrfs/ioctl.c
57494 +++ b/fs/btrfs/ioctl.c
57495 @@ -3575,9 +3575,12 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
57496 for (i = 0; i < num_types; i++) {
57497 struct btrfs_space_info *tmp;
57498
57499 + /* Don't copy in more than we allocated */
57500 if (!slot_count)
57501 break;
57502
57503 + slot_count--;
57504 +
57505 info = NULL;
57506 rcu_read_lock();
57507 list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
57508 @@ -3599,10 +3602,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
57509 memcpy(dest, &space, sizeof(space));
57510 dest++;
57511 space_args.total_spaces++;
57512 - slot_count--;
57513 }
57514 - if (!slot_count)
57515 - break;
57516 }
57517 up_read(&info->groups_sem);
57518 }
57519 diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
57520 index 9601d25..2896d6c 100644
57521 --- a/fs/btrfs/super.c
57522 +++ b/fs/btrfs/super.c
57523 @@ -270,7 +270,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
57524 function, line, errstr);
57525 return;
57526 }
57527 - ACCESS_ONCE(trans->transaction->aborted) = errno;
57528 + ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
57529 /* Wake up anybody who may be waiting on this transaction */
57530 wake_up(&root->fs_info->transaction_wait);
57531 wake_up(&root->fs_info->transaction_blocked_wait);
57532 diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
57533 index 4825cd2..b2fe768 100644
57534 --- a/fs/btrfs/sysfs.c
57535 +++ b/fs/btrfs/sysfs.c
57536 @@ -438,7 +438,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
57537 for (set = 0; set < FEAT_MAX; set++) {
57538 int i;
57539 struct attribute *attrs[2];
57540 - struct attribute_group agroup = {
57541 + attribute_group_no_const agroup = {
57542 .name = "features",
57543 .attrs = attrs,
57544 };
57545 diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
57546 index e2f45fc..b036909 100644
57547 --- a/fs/btrfs/tree-log.c
57548 +++ b/fs/btrfs/tree-log.c
57549 @@ -2533,7 +2533,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
57550 blk_finish_plug(&plug);
57551 btrfs_abort_transaction(trans, root, ret);
57552 btrfs_free_logged_extents(log, log_transid);
57553 - ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
57554 + ACCESS_ONCE_RW(root->fs_info->last_trans_log_full_commit) =
57555 trans->transid;
57556 mutex_unlock(&root->log_mutex);
57557 goto out;
57558 @@ -2577,7 +2577,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
57559 list_del_init(&root_log_ctx.list);
57560
57561 blk_finish_plug(&plug);
57562 - ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
57563 + ACCESS_ONCE_RW(root->fs_info->last_trans_log_full_commit) =
57564 trans->transid;
57565 if (ret != -ENOSPC) {
57566 btrfs_abort_transaction(trans, root, ret);
57567 @@ -2622,7 +2622,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
57568 * now that we've moved on to the tree of log tree roots,
57569 * check the full commit flag again
57570 */
57571 - if (ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) ==
57572 + if (ACCESS_ONCE_RW(root->fs_info->last_trans_log_full_commit) ==
57573 trans->transid) {
57574 blk_finish_plug(&plug);
57575 btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
57576 @@ -2637,7 +2637,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
57577 EXTENT_DIRTY | EXTENT_NEW);
57578 blk_finish_plug(&plug);
57579 if (ret) {
57580 - ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
57581 + ACCESS_ONCE_RW(root->fs_info->last_trans_log_full_commit) =
57582 trans->transid;
57583 btrfs_abort_transaction(trans, root, ret);
57584 btrfs_free_logged_extents(log, log_transid);
57585 @@ -2667,7 +2667,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
57586 */
57587 ret = write_ctree_super(trans, root->fs_info->tree_root, 1);
57588 if (ret) {
57589 - ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
57590 + ACCESS_ONCE_RW(root->fs_info->last_trans_log_full_commit) =
57591 trans->transid;
57592 btrfs_abort_transaction(trans, root, ret);
57593 goto out_wake_log_root;
57594 diff --git a/fs/buffer.c b/fs/buffer.c
57595 index 9ddb9fc..7aa2487 100644
57596 --- a/fs/buffer.c
57597 +++ b/fs/buffer.c
57598 @@ -3428,7 +3428,7 @@ void __init buffer_init(void)
57599 bh_cachep = kmem_cache_create("buffer_head",
57600 sizeof(struct buffer_head), 0,
57601 (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
57602 - SLAB_MEM_SPREAD),
57603 + SLAB_MEM_SPREAD|SLAB_NO_SANITIZE),
57604 NULL);
57605
57606 /*
57607 diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
57608 index 5b99baf..47fffb5 100644
57609 --- a/fs/cachefiles/bind.c
57610 +++ b/fs/cachefiles/bind.c
57611 @@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
57612 args);
57613
57614 /* start by checking things over */
57615 - ASSERT(cache->fstop_percent >= 0 &&
57616 - cache->fstop_percent < cache->fcull_percent &&
57617 + ASSERT(cache->fstop_percent < cache->fcull_percent &&
57618 cache->fcull_percent < cache->frun_percent &&
57619 cache->frun_percent < 100);
57620
57621 - ASSERT(cache->bstop_percent >= 0 &&
57622 - cache->bstop_percent < cache->bcull_percent &&
57623 + ASSERT(cache->bstop_percent < cache->bcull_percent &&
57624 cache->bcull_percent < cache->brun_percent &&
57625 cache->brun_percent < 100);
57626
57627 diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
57628 index 0a1467b..6a53245 100644
57629 --- a/fs/cachefiles/daemon.c
57630 +++ b/fs/cachefiles/daemon.c
57631 @@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
57632 if (n > buflen)
57633 return -EMSGSIZE;
57634
57635 - if (copy_to_user(_buffer, buffer, n) != 0)
57636 + if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
57637 return -EFAULT;
57638
57639 return n;
57640 @@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
57641 if (test_bit(CACHEFILES_DEAD, &cache->flags))
57642 return -EIO;
57643
57644 - if (datalen < 0 || datalen > PAGE_SIZE - 1)
57645 + if (datalen > PAGE_SIZE - 1)
57646 return -EOPNOTSUPP;
57647
57648 /* drag the command string into the kernel so we can parse it */
57649 @@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
57650 if (args[0] != '%' || args[1] != '\0')
57651 return -EINVAL;
57652
57653 - if (fstop < 0 || fstop >= cache->fcull_percent)
57654 + if (fstop >= cache->fcull_percent)
57655 return cachefiles_daemon_range_error(cache, args);
57656
57657 cache->fstop_percent = fstop;
57658 @@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
57659 if (args[0] != '%' || args[1] != '\0')
57660 return -EINVAL;
57661
57662 - if (bstop < 0 || bstop >= cache->bcull_percent)
57663 + if (bstop >= cache->bcull_percent)
57664 return cachefiles_daemon_range_error(cache, args);
57665
57666 cache->bstop_percent = bstop;
57667 diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
57668 index 5349473..d6c0b93 100644
57669 --- a/fs/cachefiles/internal.h
57670 +++ b/fs/cachefiles/internal.h
57671 @@ -59,7 +59,7 @@ struct cachefiles_cache {
57672 wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */
57673 struct rb_root active_nodes; /* active nodes (can't be culled) */
57674 rwlock_t active_lock; /* lock for active_nodes */
57675 - atomic_t gravecounter; /* graveyard uniquifier */
57676 + atomic_unchecked_t gravecounter; /* graveyard uniquifier */
57677 unsigned frun_percent; /* when to stop culling (% files) */
57678 unsigned fcull_percent; /* when to start culling (% files) */
57679 unsigned fstop_percent; /* when to stop allocating (% files) */
57680 @@ -171,19 +171,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
57681 * proc.c
57682 */
57683 #ifdef CONFIG_CACHEFILES_HISTOGRAM
57684 -extern atomic_t cachefiles_lookup_histogram[HZ];
57685 -extern atomic_t cachefiles_mkdir_histogram[HZ];
57686 -extern atomic_t cachefiles_create_histogram[HZ];
57687 +extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
57688 +extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
57689 +extern atomic_unchecked_t cachefiles_create_histogram[HZ];
57690
57691 extern int __init cachefiles_proc_init(void);
57692 extern void cachefiles_proc_cleanup(void);
57693 static inline
57694 -void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
57695 +void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
57696 {
57697 unsigned long jif = jiffies - start_jif;
57698 if (jif >= HZ)
57699 jif = HZ - 1;
57700 - atomic_inc(&histogram[jif]);
57701 + atomic_inc_unchecked(&histogram[jif]);
57702 }
57703
57704 #else
57705 diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
57706 index c0a6817..ea811166 100644
57707 --- a/fs/cachefiles/namei.c
57708 +++ b/fs/cachefiles/namei.c
57709 @@ -317,7 +317,7 @@ try_again:
57710 /* first step is to make up a grave dentry in the graveyard */
57711 sprintf(nbuffer, "%08x%08x",
57712 (uint32_t) get_seconds(),
57713 - (uint32_t) atomic_inc_return(&cache->gravecounter));
57714 + (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
57715
57716 /* do the multiway lock magic */
57717 trap = lock_rename(cache->graveyard, dir);
57718 diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
57719 index eccd339..4c1d995 100644
57720 --- a/fs/cachefiles/proc.c
57721 +++ b/fs/cachefiles/proc.c
57722 @@ -14,9 +14,9 @@
57723 #include <linux/seq_file.h>
57724 #include "internal.h"
57725
57726 -atomic_t cachefiles_lookup_histogram[HZ];
57727 -atomic_t cachefiles_mkdir_histogram[HZ];
57728 -atomic_t cachefiles_create_histogram[HZ];
57729 +atomic_unchecked_t cachefiles_lookup_histogram[HZ];
57730 +atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
57731 +atomic_unchecked_t cachefiles_create_histogram[HZ];
57732
57733 /*
57734 * display the latency histogram
57735 @@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
57736 return 0;
57737 default:
57738 index = (unsigned long) v - 3;
57739 - x = atomic_read(&cachefiles_lookup_histogram[index]);
57740 - y = atomic_read(&cachefiles_mkdir_histogram[index]);
57741 - z = atomic_read(&cachefiles_create_histogram[index]);
57742 + x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
57743 + y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
57744 + z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
57745 if (x == 0 && y == 0 && z == 0)
57746 return 0;
57747
57748 diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
57749 index 4b1fb5c..0d2a699 100644
57750 --- a/fs/cachefiles/rdwr.c
57751 +++ b/fs/cachefiles/rdwr.c
57752 @@ -943,7 +943,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
57753 old_fs = get_fs();
57754 set_fs(KERNEL_DS);
57755 ret = file->f_op->write(
57756 - file, (const void __user *) data, len, &pos);
57757 + file, (const void __force_user *) data, len, &pos);
57758 set_fs(old_fs);
57759 kunmap(page);
57760 file_end_write(file);
57761 diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
57762 index c29d6ae..a56c4ae 100644
57763 --- a/fs/ceph/dir.c
57764 +++ b/fs/ceph/dir.c
57765 @@ -250,7 +250,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
57766 struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
57767 struct ceph_mds_client *mdsc = fsc->mdsc;
57768 unsigned frag = fpos_frag(ctx->pos);
57769 - int off = fpos_off(ctx->pos);
57770 + unsigned int off = fpos_off(ctx->pos);
57771 int err;
57772 u32 ftype;
57773 struct ceph_mds_reply_info_parsed *rinfo;
57774 diff --git a/fs/ceph/super.c b/fs/ceph/super.c
57775 index 06150fd..192061b 100644
57776 --- a/fs/ceph/super.c
57777 +++ b/fs/ceph/super.c
57778 @@ -895,7 +895,7 @@ static int ceph_compare_super(struct super_block *sb, void *data)
57779 /*
57780 * construct our own bdi so we can control readahead, etc.
57781 */
57782 -static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
57783 +static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
57784
57785 static int ceph_register_bdi(struct super_block *sb,
57786 struct ceph_fs_client *fsc)
57787 @@ -912,7 +912,7 @@ static int ceph_register_bdi(struct super_block *sb,
57788 default_backing_dev_info.ra_pages;
57789
57790 err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",
57791 - atomic_long_inc_return(&bdi_seq));
57792 + atomic_long_inc_return_unchecked(&bdi_seq));
57793 if (!err)
57794 sb->s_bdi = &fsc->backing_dev_info;
57795 return err;
57796 diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
57797 index f3ac415..3d2420c 100644
57798 --- a/fs/cifs/cifs_debug.c
57799 +++ b/fs/cifs/cifs_debug.c
57800 @@ -286,8 +286,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
57801
57802 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
57803 #ifdef CONFIG_CIFS_STATS2
57804 - atomic_set(&totBufAllocCount, 0);
57805 - atomic_set(&totSmBufAllocCount, 0);
57806 + atomic_set_unchecked(&totBufAllocCount, 0);
57807 + atomic_set_unchecked(&totSmBufAllocCount, 0);
57808 #endif /* CONFIG_CIFS_STATS2 */
57809 spin_lock(&cifs_tcp_ses_lock);
57810 list_for_each(tmp1, &cifs_tcp_ses_list) {
57811 @@ -300,7 +300,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
57812 tcon = list_entry(tmp3,
57813 struct cifs_tcon,
57814 tcon_list);
57815 - atomic_set(&tcon->num_smbs_sent, 0);
57816 + atomic_set_unchecked(&tcon->num_smbs_sent, 0);
57817 if (server->ops->clear_stats)
57818 server->ops->clear_stats(tcon);
57819 }
57820 @@ -332,8 +332,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
57821 smBufAllocCount.counter, cifs_min_small);
57822 #ifdef CONFIG_CIFS_STATS2
57823 seq_printf(m, "Total Large %d Small %d Allocations\n",
57824 - atomic_read(&totBufAllocCount),
57825 - atomic_read(&totSmBufAllocCount));
57826 + atomic_read_unchecked(&totBufAllocCount),
57827 + atomic_read_unchecked(&totSmBufAllocCount));
57828 #endif /* CONFIG_CIFS_STATS2 */
57829
57830 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
57831 @@ -362,7 +362,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
57832 if (tcon->need_reconnect)
57833 seq_puts(m, "\tDISCONNECTED ");
57834 seq_printf(m, "\nSMBs: %d",
57835 - atomic_read(&tcon->num_smbs_sent));
57836 + atomic_read_unchecked(&tcon->num_smbs_sent));
57837 if (server->ops->print_stats)
57838 server->ops->print_stats(m, tcon);
57839 }
57840 diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
57841 index 5be1f997..fa1015a1 100644
57842 --- a/fs/cifs/cifsfs.c
57843 +++ b/fs/cifs/cifsfs.c
57844 @@ -1068,7 +1068,7 @@ cifs_init_request_bufs(void)
57845 */
57846 cifs_req_cachep = kmem_cache_create("cifs_request",
57847 CIFSMaxBufSize + max_hdr_size, 0,
57848 - SLAB_HWCACHE_ALIGN, NULL);
57849 + SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
57850 if (cifs_req_cachep == NULL)
57851 return -ENOMEM;
57852
57853 @@ -1095,7 +1095,7 @@ cifs_init_request_bufs(void)
57854 efficient to alloc 1 per page off the slab compared to 17K (5page)
57855 alloc of large cifs buffers even when page debugging is on */
57856 cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
57857 - MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
57858 + MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
57859 NULL);
57860 if (cifs_sm_req_cachep == NULL) {
57861 mempool_destroy(cifs_req_poolp);
57862 @@ -1180,8 +1180,8 @@ init_cifs(void)
57863 atomic_set(&bufAllocCount, 0);
57864 atomic_set(&smBufAllocCount, 0);
57865 #ifdef CONFIG_CIFS_STATS2
57866 - atomic_set(&totBufAllocCount, 0);
57867 - atomic_set(&totSmBufAllocCount, 0);
57868 + atomic_set_unchecked(&totBufAllocCount, 0);
57869 + atomic_set_unchecked(&totSmBufAllocCount, 0);
57870 #endif /* CONFIG_CIFS_STATS2 */
57871
57872 atomic_set(&midCount, 0);
57873 diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
57874 index 30f6e92..e915ba5 100644
57875 --- a/fs/cifs/cifsglob.h
57876 +++ b/fs/cifs/cifsglob.h
57877 @@ -806,35 +806,35 @@ struct cifs_tcon {
57878 __u16 Flags; /* optional support bits */
57879 enum statusEnum tidStatus;
57880 #ifdef CONFIG_CIFS_STATS
57881 - atomic_t num_smbs_sent;
57882 + atomic_unchecked_t num_smbs_sent;
57883 union {
57884 struct {
57885 - atomic_t num_writes;
57886 - atomic_t num_reads;
57887 - atomic_t num_flushes;
57888 - atomic_t num_oplock_brks;
57889 - atomic_t num_opens;
57890 - atomic_t num_closes;
57891 - atomic_t num_deletes;
57892 - atomic_t num_mkdirs;
57893 - atomic_t num_posixopens;
57894 - atomic_t num_posixmkdirs;
57895 - atomic_t num_rmdirs;
57896 - atomic_t num_renames;
57897 - atomic_t num_t2renames;
57898 - atomic_t num_ffirst;
57899 - atomic_t num_fnext;
57900 - atomic_t num_fclose;
57901 - atomic_t num_hardlinks;
57902 - atomic_t num_symlinks;
57903 - atomic_t num_locks;
57904 - atomic_t num_acl_get;
57905 - atomic_t num_acl_set;
57906 + atomic_unchecked_t num_writes;
57907 + atomic_unchecked_t num_reads;
57908 + atomic_unchecked_t num_flushes;
57909 + atomic_unchecked_t num_oplock_brks;
57910 + atomic_unchecked_t num_opens;
57911 + atomic_unchecked_t num_closes;
57912 + atomic_unchecked_t num_deletes;
57913 + atomic_unchecked_t num_mkdirs;
57914 + atomic_unchecked_t num_posixopens;
57915 + atomic_unchecked_t num_posixmkdirs;
57916 + atomic_unchecked_t num_rmdirs;
57917 + atomic_unchecked_t num_renames;
57918 + atomic_unchecked_t num_t2renames;
57919 + atomic_unchecked_t num_ffirst;
57920 + atomic_unchecked_t num_fnext;
57921 + atomic_unchecked_t num_fclose;
57922 + atomic_unchecked_t num_hardlinks;
57923 + atomic_unchecked_t num_symlinks;
57924 + atomic_unchecked_t num_locks;
57925 + atomic_unchecked_t num_acl_get;
57926 + atomic_unchecked_t num_acl_set;
57927 } cifs_stats;
57928 #ifdef CONFIG_CIFS_SMB2
57929 struct {
57930 - atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
57931 - atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
57932 + atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
57933 + atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
57934 } smb2_stats;
57935 #endif /* CONFIG_CIFS_SMB2 */
57936 } stats;
57937 @@ -1170,7 +1170,7 @@ convert_delimiter(char *path, char delim)
57938 }
57939
57940 #ifdef CONFIG_CIFS_STATS
57941 -#define cifs_stats_inc atomic_inc
57942 +#define cifs_stats_inc atomic_inc_unchecked
57943
57944 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
57945 unsigned int bytes)
57946 @@ -1536,8 +1536,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
57947 /* Various Debug counters */
57948 GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
57949 #ifdef CONFIG_CIFS_STATS2
57950 -GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
57951 -GLOBAL_EXTERN atomic_t totSmBufAllocCount;
57952 +GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
57953 +GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
57954 #endif
57955 GLOBAL_EXTERN atomic_t smBufAllocCount;
57956 GLOBAL_EXTERN atomic_t midCount;
57957 diff --git a/fs/cifs/file.c b/fs/cifs/file.c
57958 index 5ed03e0..e9a3a6c 100644
57959 --- a/fs/cifs/file.c
57960 +++ b/fs/cifs/file.c
57961 @@ -1900,10 +1900,14 @@ static int cifs_writepages(struct address_space *mapping,
57962 index = mapping->writeback_index; /* Start from prev offset */
57963 end = -1;
57964 } else {
57965 - index = wbc->range_start >> PAGE_CACHE_SHIFT;
57966 - end = wbc->range_end >> PAGE_CACHE_SHIFT;
57967 - if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
57968 + if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
57969 range_whole = true;
57970 + index = 0;
57971 + end = ULONG_MAX;
57972 + } else {
57973 + index = wbc->range_start >> PAGE_CACHE_SHIFT;
57974 + end = wbc->range_end >> PAGE_CACHE_SHIFT;
57975 + }
57976 scanned = true;
57977 }
57978 retry:
57979 diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
57980 index 3b0c62e..f7d090c 100644
57981 --- a/fs/cifs/misc.c
57982 +++ b/fs/cifs/misc.c
57983 @@ -170,7 +170,7 @@ cifs_buf_get(void)
57984 memset(ret_buf, 0, buf_size + 3);
57985 atomic_inc(&bufAllocCount);
57986 #ifdef CONFIG_CIFS_STATS2
57987 - atomic_inc(&totBufAllocCount);
57988 + atomic_inc_unchecked(&totBufAllocCount);
57989 #endif /* CONFIG_CIFS_STATS2 */
57990 }
57991
57992 @@ -205,7 +205,7 @@ cifs_small_buf_get(void)
57993 /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
57994 atomic_inc(&smBufAllocCount);
57995 #ifdef CONFIG_CIFS_STATS2
57996 - atomic_inc(&totSmBufAllocCount);
57997 + atomic_inc_unchecked(&totSmBufAllocCount);
57998 #endif /* CONFIG_CIFS_STATS2 */
57999
58000 }
58001 diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
58002 index d1fdfa8..94558f8 100644
58003 --- a/fs/cifs/smb1ops.c
58004 +++ b/fs/cifs/smb1ops.c
58005 @@ -626,27 +626,27 @@ static void
58006 cifs_clear_stats(struct cifs_tcon *tcon)
58007 {
58008 #ifdef CONFIG_CIFS_STATS
58009 - atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
58010 - atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
58011 - atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
58012 - atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
58013 - atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
58014 - atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
58015 - atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
58016 - atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
58017 - atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
58018 - atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
58019 - atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
58020 - atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
58021 - atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
58022 - atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
58023 - atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
58024 - atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
58025 - atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
58026 - atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
58027 - atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
58028 - atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
58029 - atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
58030 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
58031 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
58032 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
58033 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
58034 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
58035 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
58036 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
58037 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
58038 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
58039 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
58040 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
58041 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
58042 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
58043 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
58044 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
58045 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
58046 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
58047 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
58048 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
58049 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
58050 + atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
58051 #endif
58052 }
58053
58054 @@ -655,36 +655,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
58055 {
58056 #ifdef CONFIG_CIFS_STATS
58057 seq_printf(m, " Oplocks breaks: %d",
58058 - atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
58059 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
58060 seq_printf(m, "\nReads: %d Bytes: %llu",
58061 - atomic_read(&tcon->stats.cifs_stats.num_reads),
58062 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
58063 (long long)(tcon->bytes_read));
58064 seq_printf(m, "\nWrites: %d Bytes: %llu",
58065 - atomic_read(&tcon->stats.cifs_stats.num_writes),
58066 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
58067 (long long)(tcon->bytes_written));
58068 seq_printf(m, "\nFlushes: %d",
58069 - atomic_read(&tcon->stats.cifs_stats.num_flushes));
58070 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
58071 seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
58072 - atomic_read(&tcon->stats.cifs_stats.num_locks),
58073 - atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
58074 - atomic_read(&tcon->stats.cifs_stats.num_symlinks));
58075 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
58076 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
58077 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
58078 seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
58079 - atomic_read(&tcon->stats.cifs_stats.num_opens),
58080 - atomic_read(&tcon->stats.cifs_stats.num_closes),
58081 - atomic_read(&tcon->stats.cifs_stats.num_deletes));
58082 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
58083 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
58084 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
58085 seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
58086 - atomic_read(&tcon->stats.cifs_stats.num_posixopens),
58087 - atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
58088 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
58089 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
58090 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
58091 - atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
58092 - atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
58093 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
58094 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
58095 seq_printf(m, "\nRenames: %d T2 Renames %d",
58096 - atomic_read(&tcon->stats.cifs_stats.num_renames),
58097 - atomic_read(&tcon->stats.cifs_stats.num_t2renames));
58098 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
58099 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
58100 seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
58101 - atomic_read(&tcon->stats.cifs_stats.num_ffirst),
58102 - atomic_read(&tcon->stats.cifs_stats.num_fnext),
58103 - atomic_read(&tcon->stats.cifs_stats.num_fclose));
58104 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
58105 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
58106 + atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
58107 #endif
58108 }
58109
58110 diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
58111 index 35ddc3e..563e809 100644
58112 --- a/fs/cifs/smb2ops.c
58113 +++ b/fs/cifs/smb2ops.c
58114 @@ -364,8 +364,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
58115 #ifdef CONFIG_CIFS_STATS
58116 int i;
58117 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
58118 - atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
58119 - atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
58120 + atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
58121 + atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
58122 }
58123 #endif
58124 }
58125 @@ -405,65 +405,65 @@ static void
58126 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
58127 {
58128 #ifdef CONFIG_CIFS_STATS
58129 - atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
58130 - atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
58131 + atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
58132 + atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
58133 seq_printf(m, "\nNegotiates: %d sent %d failed",
58134 - atomic_read(&sent[SMB2_NEGOTIATE_HE]),
58135 - atomic_read(&failed[SMB2_NEGOTIATE_HE]));
58136 + atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
58137 + atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
58138 seq_printf(m, "\nSessionSetups: %d sent %d failed",
58139 - atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
58140 - atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
58141 + atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
58142 + atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
58143 seq_printf(m, "\nLogoffs: %d sent %d failed",
58144 - atomic_read(&sent[SMB2_LOGOFF_HE]),
58145 - atomic_read(&failed[SMB2_LOGOFF_HE]));
58146 + atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
58147 + atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
58148 seq_printf(m, "\nTreeConnects: %d sent %d failed",
58149 - atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
58150 - atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
58151 + atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
58152 + atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
58153 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
58154 - atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
58155 - atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
58156 + atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
58157 + atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
58158 seq_printf(m, "\nCreates: %d sent %d failed",
58159 - atomic_read(&sent[SMB2_CREATE_HE]),
58160 - atomic_read(&failed[SMB2_CREATE_HE]));
58161 + atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
58162 + atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
58163 seq_printf(m, "\nCloses: %d sent %d failed",
58164 - atomic_read(&sent[SMB2_CLOSE_HE]),
58165 - atomic_read(&failed[SMB2_CLOSE_HE]));
58166 + atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
58167 + atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
58168 seq_printf(m, "\nFlushes: %d sent %d failed",
58169 - atomic_read(&sent[SMB2_FLUSH_HE]),
58170 - atomic_read(&failed[SMB2_FLUSH_HE]));
58171 + atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
58172 + atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
58173 seq_printf(m, "\nReads: %d sent %d failed",
58174 - atomic_read(&sent[SMB2_READ_HE]),
58175 - atomic_read(&failed[SMB2_READ_HE]));
58176 + atomic_read_unchecked(&sent[SMB2_READ_HE]),
58177 + atomic_read_unchecked(&failed[SMB2_READ_HE]));
58178 seq_printf(m, "\nWrites: %d sent %d failed",
58179 - atomic_read(&sent[SMB2_WRITE_HE]),
58180 - atomic_read(&failed[SMB2_WRITE_HE]));
58181 + atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
58182 + atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
58183 seq_printf(m, "\nLocks: %d sent %d failed",
58184 - atomic_read(&sent[SMB2_LOCK_HE]),
58185 - atomic_read(&failed[SMB2_LOCK_HE]));
58186 + atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
58187 + atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
58188 seq_printf(m, "\nIOCTLs: %d sent %d failed",
58189 - atomic_read(&sent[SMB2_IOCTL_HE]),
58190 - atomic_read(&failed[SMB2_IOCTL_HE]));
58191 + atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
58192 + atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
58193 seq_printf(m, "\nCancels: %d sent %d failed",
58194 - atomic_read(&sent[SMB2_CANCEL_HE]),
58195 - atomic_read(&failed[SMB2_CANCEL_HE]));
58196 + atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
58197 + atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
58198 seq_printf(m, "\nEchos: %d sent %d failed",
58199 - atomic_read(&sent[SMB2_ECHO_HE]),
58200 - atomic_read(&failed[SMB2_ECHO_HE]));
58201 + atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
58202 + atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
58203 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
58204 - atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
58205 - atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
58206 + atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
58207 + atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
58208 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
58209 - atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
58210 - atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
58211 + atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
58212 + atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
58213 seq_printf(m, "\nQueryInfos: %d sent %d failed",
58214 - atomic_read(&sent[SMB2_QUERY_INFO_HE]),
58215 - atomic_read(&failed[SMB2_QUERY_INFO_HE]));
58216 + atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
58217 + atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
58218 seq_printf(m, "\nSetInfos: %d sent %d failed",
58219 - atomic_read(&sent[SMB2_SET_INFO_HE]),
58220 - atomic_read(&failed[SMB2_SET_INFO_HE]));
58221 + atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
58222 + atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
58223 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
58224 - atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
58225 - atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
58226 + atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
58227 + atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
58228 #endif
58229 }
58230
58231 diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
58232 index 1fb6ad2..758e171 100644
58233 --- a/fs/cifs/smb2pdu.c
58234 +++ b/fs/cifs/smb2pdu.c
58235 @@ -2097,8 +2097,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
58236 default:
58237 cifs_dbg(VFS, "info level %u isn't supported\n",
58238 srch_inf->info_level);
58239 - rc = -EINVAL;
58240 - goto qdir_exit;
58241 + return -EINVAL;
58242 }
58243
58244 req->FileIndex = cpu_to_le32(index);
58245 diff --git a/fs/coda/cache.c b/fs/coda/cache.c
58246 index 1da168c..8bc7ff6 100644
58247 --- a/fs/coda/cache.c
58248 +++ b/fs/coda/cache.c
58249 @@ -24,7 +24,7 @@
58250 #include "coda_linux.h"
58251 #include "coda_cache.h"
58252
58253 -static atomic_t permission_epoch = ATOMIC_INIT(0);
58254 +static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
58255
58256 /* replace or extend an acl cache hit */
58257 void coda_cache_enter(struct inode *inode, int mask)
58258 @@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
58259 struct coda_inode_info *cii = ITOC(inode);
58260
58261 spin_lock(&cii->c_lock);
58262 - cii->c_cached_epoch = atomic_read(&permission_epoch);
58263 + cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
58264 if (!uid_eq(cii->c_uid, current_fsuid())) {
58265 cii->c_uid = current_fsuid();
58266 cii->c_cached_perm = mask;
58267 @@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
58268 {
58269 struct coda_inode_info *cii = ITOC(inode);
58270 spin_lock(&cii->c_lock);
58271 - cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
58272 + cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
58273 spin_unlock(&cii->c_lock);
58274 }
58275
58276 /* remove all acl caches */
58277 void coda_cache_clear_all(struct super_block *sb)
58278 {
58279 - atomic_inc(&permission_epoch);
58280 + atomic_inc_unchecked(&permission_epoch);
58281 }
58282
58283
58284 @@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
58285 spin_lock(&cii->c_lock);
58286 hit = (mask & cii->c_cached_perm) == mask &&
58287 uid_eq(cii->c_uid, current_fsuid()) &&
58288 - cii->c_cached_epoch == atomic_read(&permission_epoch);
58289 + cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
58290 spin_unlock(&cii->c_lock);
58291
58292 return hit;
58293 diff --git a/fs/compat.c b/fs/compat.c
58294 index 66d3d3c..9c10175 100644
58295 --- a/fs/compat.c
58296 +++ b/fs/compat.c
58297 @@ -54,7 +54,7 @@
58298 #include <asm/ioctls.h>
58299 #include "internal.h"
58300
58301 -int compat_log = 1;
58302 +int compat_log = 0;
58303
58304 int compat_printk(const char *fmt, ...)
58305 {
58306 @@ -512,7 +512,7 @@ COMPAT_SYSCALL_DEFINE2(io_setup, unsigned, nr_reqs, u32 __user *, ctx32p)
58307
58308 set_fs(KERNEL_DS);
58309 /* The __user pointer cast is valid because of the set_fs() */
58310 - ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
58311 + ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
58312 set_fs(oldfs);
58313 /* truncating is ok because it's a user address */
58314 if (!ret)
58315 @@ -562,7 +562,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
58316 goto out;
58317
58318 ret = -EINVAL;
58319 - if (nr_segs > UIO_MAXIOV || nr_segs < 0)
58320 + if (nr_segs > UIO_MAXIOV)
58321 goto out;
58322 if (nr_segs > fast_segs) {
58323 ret = -ENOMEM;
58324 @@ -850,6 +850,7 @@ struct compat_old_linux_dirent {
58325 struct compat_readdir_callback {
58326 struct dir_context ctx;
58327 struct compat_old_linux_dirent __user *dirent;
58328 + struct file * file;
58329 int result;
58330 };
58331
58332 @@ -867,6 +868,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen,
58333 buf->result = -EOVERFLOW;
58334 return -EOVERFLOW;
58335 }
58336 +
58337 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
58338 + return 0;
58339 +
58340 buf->result++;
58341 dirent = buf->dirent;
58342 if (!access_ok(VERIFY_WRITE, dirent,
58343 @@ -898,6 +903,7 @@ COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
58344 if (!f.file)
58345 return -EBADF;
58346
58347 + buf.file = f.file;
58348 error = iterate_dir(f.file, &buf.ctx);
58349 if (buf.result)
58350 error = buf.result;
58351 @@ -917,6 +923,7 @@ struct compat_getdents_callback {
58352 struct dir_context ctx;
58353 struct compat_linux_dirent __user *current_dir;
58354 struct compat_linux_dirent __user *previous;
58355 + struct file * file;
58356 int count;
58357 int error;
58358 };
58359 @@ -938,6 +945,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
58360 buf->error = -EOVERFLOW;
58361 return -EOVERFLOW;
58362 }
58363 +
58364 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
58365 + return 0;
58366 +
58367 dirent = buf->previous;
58368 if (dirent) {
58369 if (__put_user(offset, &dirent->d_off))
58370 @@ -983,6 +994,7 @@ COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
58371 if (!f.file)
58372 return -EBADF;
58373
58374 + buf.file = f.file;
58375 error = iterate_dir(f.file, &buf.ctx);
58376 if (error >= 0)
58377 error = buf.error;
58378 @@ -1003,6 +1015,7 @@ struct compat_getdents_callback64 {
58379 struct dir_context ctx;
58380 struct linux_dirent64 __user *current_dir;
58381 struct linux_dirent64 __user *previous;
58382 + struct file * file;
58383 int count;
58384 int error;
58385 };
58386 @@ -1019,6 +1032,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t
58387 buf->error = -EINVAL; /* only used if we fail.. */
58388 if (reclen > buf->count)
58389 return -EINVAL;
58390 +
58391 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
58392 + return 0;
58393 +
58394 dirent = buf->previous;
58395
58396 if (dirent) {
58397 @@ -1068,6 +1085,7 @@ COMPAT_SYSCALL_DEFINE3(getdents64, unsigned int, fd,
58398 if (!f.file)
58399 return -EBADF;
58400
58401 + buf.file = f.file;
58402 error = iterate_dir(f.file, &buf.ctx);
58403 if (error >= 0)
58404 error = buf.error;
58405 diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
58406 index 4d24d17..4f8c09e 100644
58407 --- a/fs/compat_binfmt_elf.c
58408 +++ b/fs/compat_binfmt_elf.c
58409 @@ -30,11 +30,13 @@
58410 #undef elf_phdr
58411 #undef elf_shdr
58412 #undef elf_note
58413 +#undef elf_dyn
58414 #undef elf_addr_t
58415 #define elfhdr elf32_hdr
58416 #define elf_phdr elf32_phdr
58417 #define elf_shdr elf32_shdr
58418 #define elf_note elf32_note
58419 +#define elf_dyn Elf32_Dyn
58420 #define elf_addr_t Elf32_Addr
58421
58422 /*
58423 diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
58424 index e822890..59374d5 100644
58425 --- a/fs/compat_ioctl.c
58426 +++ b/fs/compat_ioctl.c
58427 @@ -621,7 +621,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
58428 return -EFAULT;
58429 if (__get_user(udata, &ss32->iomem_base))
58430 return -EFAULT;
58431 - ss.iomem_base = compat_ptr(udata);
58432 + ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
58433 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
58434 __get_user(ss.port_high, &ss32->port_high))
58435 return -EFAULT;
58436 @@ -703,8 +703,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
58437 for (i = 0; i < nmsgs; i++) {
58438 if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
58439 return -EFAULT;
58440 - if (get_user(datap, &umsgs[i].buf) ||
58441 - put_user(compat_ptr(datap), &tmsgs[i].buf))
58442 + if (get_user(datap, (u8 __user * __user *)&umsgs[i].buf) ||
58443 + put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
58444 return -EFAULT;
58445 }
58446 return sys_ioctl(fd, cmd, (unsigned long)tdata);
58447 @@ -797,7 +797,7 @@ static int compat_ioctl_preallocate(struct file *file,
58448 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
58449 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
58450 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
58451 - copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
58452 + copy_in_user(p->l_pad, p32->l_pad, 4*sizeof(u32)))
58453 return -EFAULT;
58454
58455 return ioctl_preallocate(file, p);
58456 @@ -1618,8 +1618,8 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
58457 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
58458 {
58459 unsigned int a, b;
58460 - a = *(unsigned int *)p;
58461 - b = *(unsigned int *)q;
58462 + a = *(const unsigned int *)p;
58463 + b = *(const unsigned int *)q;
58464 if (a > b)
58465 return 1;
58466 if (a < b)
58467 diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
58468 index e081acb..911df21 100644
58469 --- a/fs/configfs/dir.c
58470 +++ b/fs/configfs/dir.c
58471 @@ -1548,7 +1548,8 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
58472 }
58473 for (p = q->next; p != &parent_sd->s_children; p = p->next) {
58474 struct configfs_dirent *next;
58475 - const char *name;
58476 + const unsigned char * name;
58477 + char d_name[sizeof(next->s_dentry->d_iname)];
58478 int len;
58479 struct inode *inode = NULL;
58480
58481 @@ -1557,7 +1558,12 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
58482 continue;
58483
58484 name = configfs_get_name(next);
58485 - len = strlen(name);
58486 + if (next->s_dentry && name == next->s_dentry->d_iname) {
58487 + len = next->s_dentry->d_name.len;
58488 + memcpy(d_name, name, len);
58489 + name = d_name;
58490 + } else
58491 + len = strlen(name);
58492
58493 /*
58494 * We'll have a dentry and an inode for
58495 diff --git a/fs/coredump.c b/fs/coredump.c
58496 index 0b2528f..836c55f 100644
58497 --- a/fs/coredump.c
58498 +++ b/fs/coredump.c
58499 @@ -442,8 +442,8 @@ static void wait_for_dump_helpers(struct file *file)
58500 struct pipe_inode_info *pipe = file->private_data;
58501
58502 pipe_lock(pipe);
58503 - pipe->readers++;
58504 - pipe->writers--;
58505 + atomic_inc(&pipe->readers);
58506 + atomic_dec(&pipe->writers);
58507 wake_up_interruptible_sync(&pipe->wait);
58508 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
58509 pipe_unlock(pipe);
58510 @@ -452,11 +452,11 @@ static void wait_for_dump_helpers(struct file *file)
58511 * We actually want wait_event_freezable() but then we need
58512 * to clear TIF_SIGPENDING and improve dump_interrupted().
58513 */
58514 - wait_event_interruptible(pipe->wait, pipe->readers == 1);
58515 + wait_event_interruptible(pipe->wait, atomic_read(&pipe->readers) == 1);
58516
58517 pipe_lock(pipe);
58518 - pipe->readers--;
58519 - pipe->writers++;
58520 + atomic_dec(&pipe->readers);
58521 + atomic_inc(&pipe->writers);
58522 pipe_unlock(pipe);
58523 }
58524
58525 @@ -503,7 +503,9 @@ void do_coredump(const siginfo_t *siginfo)
58526 struct files_struct *displaced;
58527 bool need_nonrelative = false;
58528 bool core_dumped = false;
58529 - static atomic_t core_dump_count = ATOMIC_INIT(0);
58530 + static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
58531 + long signr = siginfo->si_signo;
58532 + int dumpable;
58533 struct coredump_params cprm = {
58534 .siginfo = siginfo,
58535 .regs = signal_pt_regs(),
58536 @@ -516,12 +518,17 @@ void do_coredump(const siginfo_t *siginfo)
58537 .mm_flags = mm->flags,
58538 };
58539
58540 - audit_core_dumps(siginfo->si_signo);
58541 + audit_core_dumps(signr);
58542 +
58543 + dumpable = __get_dumpable(cprm.mm_flags);
58544 +
58545 + if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
58546 + gr_handle_brute_attach(dumpable);
58547
58548 binfmt = mm->binfmt;
58549 if (!binfmt || !binfmt->core_dump)
58550 goto fail;
58551 - if (!__get_dumpable(cprm.mm_flags))
58552 + if (!dumpable)
58553 goto fail;
58554
58555 cred = prepare_creds();
58556 @@ -540,7 +547,7 @@ void do_coredump(const siginfo_t *siginfo)
58557 need_nonrelative = true;
58558 }
58559
58560 - retval = coredump_wait(siginfo->si_signo, &core_state);
58561 + retval = coredump_wait(signr, &core_state);
58562 if (retval < 0)
58563 goto fail_creds;
58564
58565 @@ -583,7 +590,7 @@ void do_coredump(const siginfo_t *siginfo)
58566 }
58567 cprm.limit = RLIM_INFINITY;
58568
58569 - dump_count = atomic_inc_return(&core_dump_count);
58570 + dump_count = atomic_inc_return_unchecked(&core_dump_count);
58571 if (core_pipe_limit && (core_pipe_limit < dump_count)) {
58572 printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
58573 task_tgid_vnr(current), current->comm);
58574 @@ -615,6 +622,8 @@ void do_coredump(const siginfo_t *siginfo)
58575 } else {
58576 struct inode *inode;
58577
58578 + gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
58579 +
58580 if (cprm.limit < binfmt->min_coredump)
58581 goto fail_unlock;
58582
58583 @@ -673,7 +682,7 @@ close_fail:
58584 filp_close(cprm.file, NULL);
58585 fail_dropcount:
58586 if (ispipe)
58587 - atomic_dec(&core_dump_count);
58588 + atomic_dec_unchecked(&core_dump_count);
58589 fail_unlock:
58590 kfree(cn.corename);
58591 coredump_finish(mm, core_dumped);
58592 @@ -694,6 +703,8 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
58593 struct file *file = cprm->file;
58594 loff_t pos = file->f_pos;
58595 ssize_t n;
58596 +
58597 + gr_learn_resource(current, RLIMIT_CORE, cprm->written + nr, 1);
58598 if (cprm->written + nr > cprm->limit)
58599 return 0;
58600 while (nr) {
58601 diff --git a/fs/dcache.c b/fs/dcache.c
58602 index e99c6f5..2838bf58 100644
58603 --- a/fs/dcache.c
58604 +++ b/fs/dcache.c
58605 @@ -1445,7 +1445,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
58606 */
58607 dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
58608 if (name->len > DNAME_INLINE_LEN-1) {
58609 - dname = kmalloc(name->len + 1, GFP_KERNEL);
58610 + dname = kmalloc(round_up(name->len + 1, sizeof(unsigned long)), GFP_KERNEL);
58611 if (!dname) {
58612 kmem_cache_free(dentry_cache, dentry);
58613 return NULL;
58614 @@ -3413,7 +3413,8 @@ void __init vfs_caches_init(unsigned long mempages)
58615 mempages -= reserve;
58616
58617 names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
58618 - SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
58619 + SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY|
58620 + SLAB_NO_SANITIZE, NULL);
58621
58622 dcache_init();
58623 inode_init();
58624 diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
58625 index 8c41b52..145b1b9 100644
58626 --- a/fs/debugfs/inode.c
58627 +++ b/fs/debugfs/inode.c
58628 @@ -416,7 +416,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file);
58629 */
58630 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
58631 {
58632 +#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
58633 + return __create_file(name, S_IFDIR | S_IRWXU,
58634 +#else
58635 return __create_file(name, S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
58636 +#endif
58637 parent, NULL, NULL);
58638 }
58639 EXPORT_SYMBOL_GPL(debugfs_create_dir);
58640 diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
58641 index d4a9431..77f9b2e 100644
58642 --- a/fs/ecryptfs/inode.c
58643 +++ b/fs/ecryptfs/inode.c
58644 @@ -673,7 +673,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
58645 old_fs = get_fs();
58646 set_fs(get_ds());
58647 rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
58648 - (char __user *)lower_buf,
58649 + (char __force_user *)lower_buf,
58650 PATH_MAX);
58651 set_fs(old_fs);
58652 if (rc < 0)
58653 diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
58654 index e4141f2..d8263e8 100644
58655 --- a/fs/ecryptfs/miscdev.c
58656 +++ b/fs/ecryptfs/miscdev.c
58657 @@ -304,7 +304,7 @@ check_list:
58658 goto out_unlock_msg_ctx;
58659 i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
58660 if (msg_ctx->msg) {
58661 - if (copy_to_user(&buf[i], packet_length, packet_length_size))
58662 + if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
58663 goto out_unlock_msg_ctx;
58664 i += packet_length_size;
58665 if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
58666 diff --git a/fs/exec.c b/fs/exec.c
58667 index 238b7aa..a421d91 100644
58668 --- a/fs/exec.c
58669 +++ b/fs/exec.c
58670 @@ -56,8 +56,20 @@
58671 #include <linux/pipe_fs_i.h>
58672 #include <linux/oom.h>
58673 #include <linux/compat.h>
58674 +#include <linux/random.h>
58675 +#include <linux/seq_file.h>
58676 +#include <linux/coredump.h>
58677 +#include <linux/mman.h>
58678 +
58679 +#ifdef CONFIG_PAX_REFCOUNT
58680 +#include <linux/kallsyms.h>
58681 +#include <linux/kdebug.h>
58682 +#endif
58683 +
58684 +#include <trace/events/fs.h>
58685
58686 #include <asm/uaccess.h>
58687 +#include <asm/sections.h>
58688 #include <asm/mmu_context.h>
58689 #include <asm/tlb.h>
58690
58691 @@ -66,19 +78,34 @@
58692
58693 #include <trace/events/sched.h>
58694
58695 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
58696 +void __weak pax_set_initial_flags(struct linux_binprm *bprm)
58697 +{
58698 + pr_warn_once("PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
58699 +}
58700 +#endif
58701 +
58702 +#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
58703 +void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
58704 +EXPORT_SYMBOL(pax_set_initial_flags_func);
58705 +#endif
58706 +
58707 int suid_dumpable = 0;
58708
58709 static LIST_HEAD(formats);
58710 static DEFINE_RWLOCK(binfmt_lock);
58711
58712 +extern int gr_process_kernel_exec_ban(void);
58713 +extern int gr_process_suid_exec_ban(const struct linux_binprm *bprm);
58714 +
58715 void __register_binfmt(struct linux_binfmt * fmt, int insert)
58716 {
58717 BUG_ON(!fmt);
58718 if (WARN_ON(!fmt->load_binary))
58719 return;
58720 write_lock(&binfmt_lock);
58721 - insert ? list_add(&fmt->lh, &formats) :
58722 - list_add_tail(&fmt->lh, &formats);
58723 + insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
58724 + pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
58725 write_unlock(&binfmt_lock);
58726 }
58727
58728 @@ -87,7 +114,7 @@ EXPORT_SYMBOL(__register_binfmt);
58729 void unregister_binfmt(struct linux_binfmt * fmt)
58730 {
58731 write_lock(&binfmt_lock);
58732 - list_del(&fmt->lh);
58733 + pax_list_del((struct list_head *)&fmt->lh);
58734 write_unlock(&binfmt_lock);
58735 }
58736
58737 @@ -183,18 +210,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
58738 int write)
58739 {
58740 struct page *page;
58741 - int ret;
58742
58743 -#ifdef CONFIG_STACK_GROWSUP
58744 - if (write) {
58745 - ret = expand_downwards(bprm->vma, pos);
58746 - if (ret < 0)
58747 - return NULL;
58748 - }
58749 -#endif
58750 - ret = get_user_pages(current, bprm->mm, pos,
58751 - 1, write, 1, &page, NULL);
58752 - if (ret <= 0)
58753 + if (0 > expand_downwards(bprm->vma, pos))
58754 + return NULL;
58755 + if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
58756 return NULL;
58757
58758 if (write) {
58759 @@ -210,6 +229,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
58760 if (size <= ARG_MAX)
58761 return page;
58762
58763 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
58764 + // only allow 512KB for argv+env on suid/sgid binaries
58765 + // to prevent easy ASLR exhaustion
58766 + if (((!uid_eq(bprm->cred->euid, current_euid())) ||
58767 + (!gid_eq(bprm->cred->egid, current_egid()))) &&
58768 + (size > (512 * 1024))) {
58769 + put_page(page);
58770 + return NULL;
58771 + }
58772 +#endif
58773 +
58774 /*
58775 * Limit to 1/4-th the stack size for the argv+env strings.
58776 * This ensures that:
58777 @@ -269,6 +299,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
58778 vma->vm_end = STACK_TOP_MAX;
58779 vma->vm_start = vma->vm_end - PAGE_SIZE;
58780 vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
58781 +
58782 +#ifdef CONFIG_PAX_SEGMEXEC
58783 + vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
58784 +#endif
58785 +
58786 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
58787 INIT_LIST_HEAD(&vma->anon_vma_chain);
58788
58789 @@ -279,6 +314,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
58790 mm->stack_vm = mm->total_vm = 1;
58791 up_write(&mm->mmap_sem);
58792 bprm->p = vma->vm_end - sizeof(void *);
58793 +
58794 +#ifdef CONFIG_PAX_RANDUSTACK
58795 + if (randomize_va_space)
58796 + bprm->p ^= prandom_u32() & ~PAGE_MASK;
58797 +#endif
58798 +
58799 return 0;
58800 err:
58801 up_write(&mm->mmap_sem);
58802 @@ -399,7 +440,7 @@ struct user_arg_ptr {
58803 } ptr;
58804 };
58805
58806 -static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
58807 +const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
58808 {
58809 const char __user *native;
58810
58811 @@ -408,14 +449,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
58812 compat_uptr_t compat;
58813
58814 if (get_user(compat, argv.ptr.compat + nr))
58815 - return ERR_PTR(-EFAULT);
58816 + return (const char __force_user *)ERR_PTR(-EFAULT);
58817
58818 return compat_ptr(compat);
58819 }
58820 #endif
58821
58822 if (get_user(native, argv.ptr.native + nr))
58823 - return ERR_PTR(-EFAULT);
58824 + return (const char __force_user *)ERR_PTR(-EFAULT);
58825
58826 return native;
58827 }
58828 @@ -434,7 +475,7 @@ static int count(struct user_arg_ptr argv, int max)
58829 if (!p)
58830 break;
58831
58832 - if (IS_ERR(p))
58833 + if (IS_ERR((const char __force_kernel *)p))
58834 return -EFAULT;
58835
58836 if (i >= max)
58837 @@ -469,7 +510,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
58838
58839 ret = -EFAULT;
58840 str = get_user_arg_ptr(argv, argc);
58841 - if (IS_ERR(str))
58842 + if (IS_ERR((const char __force_kernel *)str))
58843 goto out;
58844
58845 len = strnlen_user(str, MAX_ARG_STRLEN);
58846 @@ -551,7 +592,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
58847 int r;
58848 mm_segment_t oldfs = get_fs();
58849 struct user_arg_ptr argv = {
58850 - .ptr.native = (const char __user *const __user *)__argv,
58851 + .ptr.native = (const char __user * const __force_user *)__argv,
58852 };
58853
58854 set_fs(KERNEL_DS);
58855 @@ -586,7 +627,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
58856 unsigned long new_end = old_end - shift;
58857 struct mmu_gather tlb;
58858
58859 - BUG_ON(new_start > new_end);
58860 + if (new_start >= new_end || new_start < mmap_min_addr)
58861 + return -ENOMEM;
58862
58863 /*
58864 * ensure there are no vmas between where we want to go
58865 @@ -595,6 +637,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
58866 if (vma != find_vma(mm, new_start))
58867 return -EFAULT;
58868
58869 +#ifdef CONFIG_PAX_SEGMEXEC
58870 + BUG_ON(pax_find_mirror_vma(vma));
58871 +#endif
58872 +
58873 /*
58874 * cover the whole range: [new_start, old_end)
58875 */
58876 @@ -675,10 +721,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
58877 stack_top = arch_align_stack(stack_top);
58878 stack_top = PAGE_ALIGN(stack_top);
58879
58880 - if (unlikely(stack_top < mmap_min_addr) ||
58881 - unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
58882 - return -ENOMEM;
58883 -
58884 stack_shift = vma->vm_end - stack_top;
58885
58886 bprm->p -= stack_shift;
58887 @@ -690,8 +732,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
58888 bprm->exec -= stack_shift;
58889
58890 down_write(&mm->mmap_sem);
58891 +
58892 + /* Move stack pages down in memory. */
58893 + if (stack_shift) {
58894 + ret = shift_arg_pages(vma, stack_shift);
58895 + if (ret)
58896 + goto out_unlock;
58897 + }
58898 +
58899 vm_flags = VM_STACK_FLAGS;
58900
58901 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
58902 + if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
58903 + vm_flags &= ~VM_EXEC;
58904 +
58905 +#ifdef CONFIG_PAX_MPROTECT
58906 + if (mm->pax_flags & MF_PAX_MPROTECT)
58907 + vm_flags &= ~VM_MAYEXEC;
58908 +#endif
58909 +
58910 + }
58911 +#endif
58912 +
58913 /*
58914 * Adjust stack execute permissions; explicitly enable for
58915 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
58916 @@ -710,13 +772,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
58917 goto out_unlock;
58918 BUG_ON(prev != vma);
58919
58920 - /* Move stack pages down in memory. */
58921 - if (stack_shift) {
58922 - ret = shift_arg_pages(vma, stack_shift);
58923 - if (ret)
58924 - goto out_unlock;
58925 - }
58926 -
58927 /* mprotect_fixup is overkill to remove the temporary stack flags */
58928 vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
58929
58930 @@ -740,6 +795,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
58931 #endif
58932 current->mm->start_stack = bprm->p;
58933 ret = expand_stack(vma, stack_base);
58934 +
58935 +#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
58936 + if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
58937 + unsigned long size;
58938 + vm_flags_t vm_flags;
58939 +
58940 + size = STACK_TOP - vma->vm_end;
58941 + vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
58942 +
58943 + ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
58944 +
58945 +#ifdef CONFIG_X86
58946 + if (!ret) {
58947 + size = PAGE_SIZE + mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
58948 + ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
58949 + }
58950 +#endif
58951 +
58952 + }
58953 +#endif
58954 +
58955 if (ret)
58956 ret = -EFAULT;
58957
58958 @@ -775,6 +851,8 @@ static struct file *do_open_exec(struct filename *name)
58959
58960 fsnotify_open(file);
58961
58962 + trace_open_exec(name->name);
58963 +
58964 err = deny_write_access(file);
58965 if (err)
58966 goto exit;
58967 @@ -804,7 +882,7 @@ int kernel_read(struct file *file, loff_t offset,
58968 old_fs = get_fs();
58969 set_fs(get_ds());
58970 /* The cast to a user pointer is valid due to the set_fs() */
58971 - result = vfs_read(file, (void __user *)addr, count, &pos);
58972 + result = vfs_read(file, (void __force_user *)addr, count, &pos);
58973 set_fs(old_fs);
58974 return result;
58975 }
58976 @@ -849,6 +927,7 @@ static int exec_mmap(struct mm_struct *mm)
58977 tsk->mm = mm;
58978 tsk->active_mm = mm;
58979 activate_mm(active_mm, mm);
58980 + populate_stack();
58981 tsk->mm->vmacache_seqnum = 0;
58982 vmacache_flush(tsk);
58983 task_unlock(tsk);
58984 @@ -1246,7 +1325,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
58985 }
58986 rcu_read_unlock();
58987
58988 - if (p->fs->users > n_fs)
58989 + if (atomic_read(&p->fs->users) > n_fs)
58990 bprm->unsafe |= LSM_UNSAFE_SHARE;
58991 else
58992 p->fs->in_exec = 1;
58993 @@ -1422,6 +1501,31 @@ static int exec_binprm(struct linux_binprm *bprm)
58994 return ret;
58995 }
58996
58997 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
58998 +static DEFINE_PER_CPU(u64, exec_counter);
58999 +static int __init init_exec_counters(void)
59000 +{
59001 + unsigned int cpu;
59002 +
59003 + for_each_possible_cpu(cpu) {
59004 + per_cpu(exec_counter, cpu) = (u64)cpu;
59005 + }
59006 +
59007 + return 0;
59008 +}
59009 +early_initcall(init_exec_counters);
59010 +static inline void increment_exec_counter(void)
59011 +{
59012 + BUILD_BUG_ON(NR_CPUS > (1 << 16));
59013 + current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
59014 +}
59015 +#else
59016 +static inline void increment_exec_counter(void) {}
59017 +#endif
59018 +
59019 +extern void gr_handle_exec_args(struct linux_binprm *bprm,
59020 + struct user_arg_ptr argv);
59021 +
59022 /*
59023 * sys_execve() executes a new program.
59024 */
59025 @@ -1429,6 +1533,11 @@ static int do_execve_common(struct filename *filename,
59026 struct user_arg_ptr argv,
59027 struct user_arg_ptr envp)
59028 {
59029 +#ifdef CONFIG_GRKERNSEC
59030 + struct file *old_exec_file;
59031 + struct acl_subject_label *old_acl;
59032 + struct rlimit old_rlim[RLIM_NLIMITS];
59033 +#endif
59034 struct linux_binprm *bprm;
59035 struct file *file;
59036 struct files_struct *displaced;
59037 @@ -1437,6 +1546,8 @@ static int do_execve_common(struct filename *filename,
59038 if (IS_ERR(filename))
59039 return PTR_ERR(filename);
59040
59041 + gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current_user()->processes), 1);
59042 +
59043 /*
59044 * We move the actual failure in case of RLIMIT_NPROC excess from
59045 * set*uid() to execve() because too many poorly written programs
59046 @@ -1474,11 +1585,21 @@ static int do_execve_common(struct filename *filename,
59047 if (IS_ERR(file))
59048 goto out_unmark;
59049
59050 + if (gr_ptrace_readexec(file, bprm->unsafe)) {
59051 + retval = -EPERM;
59052 + goto out_unmark;
59053 + }
59054 +
59055 sched_exec();
59056
59057 bprm->file = file;
59058 bprm->filename = bprm->interp = filename->name;
59059
59060 + if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
59061 + retval = -EACCES;
59062 + goto out_unmark;
59063 + }
59064 +
59065 retval = bprm_mm_init(bprm);
59066 if (retval)
59067 goto out_unmark;
59068 @@ -1495,24 +1616,70 @@ static int do_execve_common(struct filename *filename,
59069 if (retval < 0)
59070 goto out;
59071
59072 +#ifdef CONFIG_GRKERNSEC
59073 + old_acl = current->acl;
59074 + memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
59075 + old_exec_file = current->exec_file;
59076 + get_file(file);
59077 + current->exec_file = file;
59078 +#endif
59079 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
59080 + /* limit suid stack to 8MB
59081 + * we saved the old limits above and will restore them if this exec fails
59082 + */
59083 + if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
59084 + (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
59085 + current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
59086 +#endif
59087 +
59088 + if (gr_process_kernel_exec_ban() || gr_process_suid_exec_ban(bprm)) {
59089 + retval = -EPERM;
59090 + goto out_fail;
59091 + }
59092 +
59093 + if (!gr_tpe_allow(file)) {
59094 + retval = -EACCES;
59095 + goto out_fail;
59096 + }
59097 +
59098 + if (gr_check_crash_exec(file)) {
59099 + retval = -EACCES;
59100 + goto out_fail;
59101 + }
59102 +
59103 + retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
59104 + bprm->unsafe);
59105 + if (retval < 0)
59106 + goto out_fail;
59107 +
59108 retval = copy_strings_kernel(1, &bprm->filename, bprm);
59109 if (retval < 0)
59110 - goto out;
59111 + goto out_fail;
59112
59113 bprm->exec = bprm->p;
59114 retval = copy_strings(bprm->envc, envp, bprm);
59115 if (retval < 0)
59116 - goto out;
59117 + goto out_fail;
59118
59119 retval = copy_strings(bprm->argc, argv, bprm);
59120 if (retval < 0)
59121 - goto out;
59122 + goto out_fail;
59123 +
59124 + gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
59125 +
59126 + gr_handle_exec_args(bprm, argv);
59127
59128 retval = exec_binprm(bprm);
59129 if (retval < 0)
59130 - goto out;
59131 + goto out_fail;
59132 +#ifdef CONFIG_GRKERNSEC
59133 + if (old_exec_file)
59134 + fput(old_exec_file);
59135 +#endif
59136
59137 /* execve succeeded */
59138 +
59139 + increment_exec_counter();
59140 current->fs->in_exec = 0;
59141 current->in_execve = 0;
59142 acct_update_integrals(current);
59143 @@ -1523,6 +1690,14 @@ static int do_execve_common(struct filename *filename,
59144 put_files_struct(displaced);
59145 return retval;
59146
59147 +out_fail:
59148 +#ifdef CONFIG_GRKERNSEC
59149 + current->acl = old_acl;
59150 + memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
59151 + fput(current->exec_file);
59152 + current->exec_file = old_exec_file;
59153 +#endif
59154 +
59155 out:
59156 if (bprm->mm) {
59157 acct_arg_size(bprm, 0);
59158 @@ -1614,3 +1789,312 @@ COMPAT_SYSCALL_DEFINE3(execve, const char __user *, filename,
59159 return compat_do_execve(getname(filename), argv, envp);
59160 }
59161 #endif
59162 +
59163 +int pax_check_flags(unsigned long *flags)
59164 +{
59165 + int retval = 0;
59166 +
59167 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
59168 + if (*flags & MF_PAX_SEGMEXEC)
59169 + {
59170 + *flags &= ~MF_PAX_SEGMEXEC;
59171 + retval = -EINVAL;
59172 + }
59173 +#endif
59174 +
59175 + if ((*flags & MF_PAX_PAGEEXEC)
59176 +
59177 +#ifdef CONFIG_PAX_PAGEEXEC
59178 + && (*flags & MF_PAX_SEGMEXEC)
59179 +#endif
59180 +
59181 + )
59182 + {
59183 + *flags &= ~MF_PAX_PAGEEXEC;
59184 + retval = -EINVAL;
59185 + }
59186 +
59187 + if ((*flags & MF_PAX_MPROTECT)
59188 +
59189 +#ifdef CONFIG_PAX_MPROTECT
59190 + && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
59191 +#endif
59192 +
59193 + )
59194 + {
59195 + *flags &= ~MF_PAX_MPROTECT;
59196 + retval = -EINVAL;
59197 + }
59198 +
59199 + if ((*flags & MF_PAX_EMUTRAMP)
59200 +
59201 +#ifdef CONFIG_PAX_EMUTRAMP
59202 + && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
59203 +#endif
59204 +
59205 + )
59206 + {
59207 + *flags &= ~MF_PAX_EMUTRAMP;
59208 + retval = -EINVAL;
59209 + }
59210 +
59211 + return retval;
59212 +}
59213 +
59214 +EXPORT_SYMBOL(pax_check_flags);
59215 +
59216 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
59217 +char *pax_get_path(const struct path *path, char *buf, int buflen)
59218 +{
59219 + char *pathname = d_path(path, buf, buflen);
59220 +
59221 + if (IS_ERR(pathname))
59222 + goto toolong;
59223 +
59224 + pathname = mangle_path(buf, pathname, "\t\n\\");
59225 + if (!pathname)
59226 + goto toolong;
59227 +
59228 + *pathname = 0;
59229 + return buf;
59230 +
59231 +toolong:
59232 + return "<path too long>";
59233 +}
59234 +EXPORT_SYMBOL(pax_get_path);
59235 +
59236 +void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
59237 +{
59238 + struct task_struct *tsk = current;
59239 + struct mm_struct *mm = current->mm;
59240 + char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
59241 + char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
59242 + char *path_exec = NULL;
59243 + char *path_fault = NULL;
59244 + unsigned long start = 0UL, end = 0UL, offset = 0UL;
59245 + siginfo_t info = { };
59246 +
59247 + if (buffer_exec && buffer_fault) {
59248 + struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
59249 +
59250 + down_read(&mm->mmap_sem);
59251 + vma = mm->mmap;
59252 + while (vma && (!vma_exec || !vma_fault)) {
59253 + if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
59254 + vma_exec = vma;
59255 + if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
59256 + vma_fault = vma;
59257 + vma = vma->vm_next;
59258 + }
59259 + if (vma_exec)
59260 + path_exec = pax_get_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
59261 + if (vma_fault) {
59262 + start = vma_fault->vm_start;
59263 + end = vma_fault->vm_end;
59264 + offset = vma_fault->vm_pgoff << PAGE_SHIFT;
59265 + if (vma_fault->vm_file)
59266 + path_fault = pax_get_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
59267 + else if ((unsigned long)pc >= mm->start_brk && (unsigned long)pc < mm->brk)
59268 + path_fault = "<heap>";
59269 + else if (vma_fault->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
59270 + path_fault = "<stack>";
59271 + else
59272 + path_fault = "<anonymous mapping>";
59273 + }
59274 + up_read(&mm->mmap_sem);
59275 + }
59276 + if (tsk->signal->curr_ip)
59277 + printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
59278 + else
59279 + printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
59280 + printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
59281 + from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
59282 + free_page((unsigned long)buffer_exec);
59283 + free_page((unsigned long)buffer_fault);
59284 + pax_report_insns(regs, pc, sp);
59285 + info.si_signo = SIGKILL;
59286 + info.si_errno = 0;
59287 + info.si_code = SI_KERNEL;
59288 + info.si_pid = 0;
59289 + info.si_uid = 0;
59290 + do_coredump(&info);
59291 +}
59292 +#endif
59293 +
59294 +#ifdef CONFIG_PAX_REFCOUNT
59295 +void pax_report_refcount_overflow(struct pt_regs *regs)
59296 +{
59297 + if (current->signal->curr_ip)
59298 + printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
59299 + &current->signal->curr_ip, current->comm, task_pid_nr(current),
59300 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
59301 + else
59302 + printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
59303 + from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
59304 + print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
59305 + preempt_disable();
59306 + show_regs(regs);
59307 + preempt_enable();
59308 + force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
59309 +}
59310 +#endif
59311 +
59312 +#ifdef CONFIG_PAX_USERCOPY
59313 +/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
59314 +static noinline int check_stack_object(const void *obj, unsigned long len)
59315 +{
59316 + const void * const stack = task_stack_page(current);
59317 + const void * const stackend = stack + THREAD_SIZE;
59318 +
59319 +#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
59320 + const void *frame = NULL;
59321 + const void *oldframe;
59322 +#endif
59323 +
59324 + if (obj + len < obj)
59325 + return -1;
59326 +
59327 + if (obj + len <= stack || stackend <= obj)
59328 + return 0;
59329 +
59330 + if (obj < stack || stackend < obj + len)
59331 + return -1;
59332 +
59333 +#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
59334 + oldframe = __builtin_frame_address(1);
59335 + if (oldframe)
59336 + frame = __builtin_frame_address(2);
59337 + /*
59338 + low ----------------------------------------------> high
59339 + [saved bp][saved ip][args][local vars][saved bp][saved ip]
59340 + ^----------------^
59341 + allow copies only within here
59342 + */
59343 + while (stack <= frame && frame < stackend) {
59344 + /* if obj + len extends past the last frame, this
59345 + check won't pass and the next frame will be 0,
59346 + causing us to bail out and correctly report
59347 + the copy as invalid
59348 + */
59349 + if (obj + len <= frame)
59350 + return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
59351 + oldframe = frame;
59352 + frame = *(const void * const *)frame;
59353 + }
59354 + return -1;
59355 +#else
59356 + return 1;
59357 +#endif
59358 +}
59359 +
59360 +static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
59361 +{
59362 + if (current->signal->curr_ip)
59363 + printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
59364 + &current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
59365 + else
59366 + printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
59367 + to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
59368 + dump_stack();
59369 + gr_handle_kernel_exploit();
59370 + do_group_exit(SIGKILL);
59371 +}
59372 +#endif
59373 +
59374 +#ifdef CONFIG_PAX_USERCOPY
59375 +
59376 +static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
59377 +{
59378 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
59379 + unsigned long textlow = ktla_ktva((unsigned long)_stext);
59380 +#ifdef CONFIG_MODULES
59381 + unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
59382 +#else
59383 + unsigned long texthigh = ktla_ktva((unsigned long)_etext);
59384 +#endif
59385 +
59386 +#else
59387 + unsigned long textlow = (unsigned long)_stext;
59388 + unsigned long texthigh = (unsigned long)_etext;
59389 +
59390 +#ifdef CONFIG_X86_64
59391 + /* check against linear mapping as well */
59392 + if (high > (unsigned long)__va(__pa(textlow)) &&
59393 + low < (unsigned long)__va(__pa(texthigh)))
59394 + return true;
59395 +#endif
59396 +
59397 +#endif
59398 +
59399 + if (high <= textlow || low >= texthigh)
59400 + return false;
59401 + else
59402 + return true;
59403 +}
59404 +#endif
59405 +
59406 +void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size)
59407 +{
59408 +#ifdef CONFIG_PAX_USERCOPY
59409 + const char *type;
59410 +#endif
59411 +
59412 +#ifndef CONFIG_STACK_GROWSUP
59413 + unsigned long stackstart = (unsigned long)task_stack_page(current);
59414 + unsigned long currentsp = (unsigned long)&stackstart;
59415 + if (unlikely((currentsp < stackstart + 512 ||
59416 + currentsp >= stackstart + THREAD_SIZE) && !in_interrupt()))
59417 + BUG();
59418 +#endif
59419 +
59420 +#ifndef CONFIG_PAX_USERCOPY_DEBUG
59421 + if (const_size)
59422 + return;
59423 +#endif
59424 +
59425 +#ifdef CONFIG_PAX_USERCOPY
59426 + if (!n)
59427 + return;
59428 +
59429 + type = check_heap_object(ptr, n);
59430 + if (!type) {
59431 + int ret = check_stack_object(ptr, n);
59432 + if (ret == 1 || ret == 2)
59433 + return;
59434 + if (ret == 0) {
59435 + if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
59436 + type = "<kernel text>";
59437 + else
59438 + return;
59439 + } else
59440 + type = "<process stack>";
59441 + }
59442 +
59443 + pax_report_usercopy(ptr, n, to_user, type);
59444 +#endif
59445 +
59446 +}
59447 +EXPORT_SYMBOL(__check_object_size);
59448 +
59449 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
59450 +void pax_track_stack(void)
59451 +{
59452 + unsigned long sp = (unsigned long)&sp;
59453 + if (sp < current_thread_info()->lowest_stack &&
59454 + sp > (unsigned long)task_stack_page(current))
59455 + current_thread_info()->lowest_stack = sp;
59456 + if (unlikely((sp & ~(THREAD_SIZE - 1)) < (THREAD_SIZE/16)))
59457 + BUG();
59458 +}
59459 +EXPORT_SYMBOL(pax_track_stack);
59460 +#endif
59461 +
59462 +#ifdef CONFIG_PAX_SIZE_OVERFLOW
59463 +void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
59464 +{
59465 + printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
59466 + dump_stack();
59467 + do_group_exit(SIGKILL);
59468 +}
59469 +EXPORT_SYMBOL(report_size_overflow);
59470 +#endif
59471 diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
59472 index 9f9992b..8b59411 100644
59473 --- a/fs/ext2/balloc.c
59474 +++ b/fs/ext2/balloc.c
59475 @@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
59476
59477 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
59478 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
59479 - if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
59480 + if (free_blocks < root_blocks + 1 &&
59481 !uid_eq(sbi->s_resuid, current_fsuid()) &&
59482 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
59483 - !in_group_p (sbi->s_resgid))) {
59484 + !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
59485 return 0;
59486 }
59487 return 1;
59488 diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
59489 index 9142614..97484fa 100644
59490 --- a/fs/ext2/xattr.c
59491 +++ b/fs/ext2/xattr.c
59492 @@ -247,7 +247,7 @@ ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
59493 struct buffer_head *bh = NULL;
59494 struct ext2_xattr_entry *entry;
59495 char *end;
59496 - size_t rest = buffer_size;
59497 + size_t rest = buffer_size, total_size = 0;
59498 int error;
59499
59500 ea_idebug(inode, "buffer=%p, buffer_size=%ld",
59501 @@ -305,9 +305,10 @@ bad_block: ext2_error(inode->i_sb, "ext2_xattr_list",
59502 buffer += size;
59503 }
59504 rest -= size;
59505 + total_size += size;
59506 }
59507 }
59508 - error = buffer_size - rest; /* total size */
59509 + error = total_size;
59510
59511 cleanup:
59512 brelse(bh);
59513 diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
59514 index 158b5d4..2432610 100644
59515 --- a/fs/ext3/balloc.c
59516 +++ b/fs/ext3/balloc.c
59517 @@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
59518
59519 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
59520 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
59521 - if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
59522 + if (free_blocks < root_blocks + 1 &&
59523 !use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
59524 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
59525 - !in_group_p (sbi->s_resgid))) {
59526 + !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
59527 return 0;
59528 }
59529 return 1;
59530 diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
59531 index c6874be..f8a6ae8 100644
59532 --- a/fs/ext3/xattr.c
59533 +++ b/fs/ext3/xattr.c
59534 @@ -330,7 +330,7 @@ static int
59535 ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
59536 char *buffer, size_t buffer_size)
59537 {
59538 - size_t rest = buffer_size;
59539 + size_t rest = buffer_size, total_size = 0;
59540
59541 for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
59542 const struct xattr_handler *handler =
59543 @@ -347,9 +347,10 @@ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
59544 buffer += size;
59545 }
59546 rest -= size;
59547 + total_size += size;
59548 }
59549 }
59550 - return buffer_size - rest;
59551 + return total_size;
59552 }
59553
59554 static int
59555 diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
59556 index 5c56785..77698a2 100644
59557 --- a/fs/ext4/balloc.c
59558 +++ b/fs/ext4/balloc.c
59559 @@ -534,8 +534,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
59560 /* Hm, nope. Are (enough) root reserved clusters available? */
59561 if (uid_eq(sbi->s_resuid, current_fsuid()) ||
59562 (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
59563 - capable(CAP_SYS_RESOURCE) ||
59564 - (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
59565 + (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
59566 + capable_nolog(CAP_SYS_RESOURCE)) {
59567
59568 if (free_clusters >= (nclusters + dirty_clusters +
59569 resv_clusters))
59570 diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
59571 index f542e48..c0275f5 100644
59572 --- a/fs/ext4/ext4.h
59573 +++ b/fs/ext4/ext4.h
59574 @@ -1274,19 +1274,19 @@ struct ext4_sb_info {
59575 unsigned long s_mb_last_start;
59576
59577 /* stats for buddy allocator */
59578 - atomic_t s_bal_reqs; /* number of reqs with len > 1 */
59579 - atomic_t s_bal_success; /* we found long enough chunks */
59580 - atomic_t s_bal_allocated; /* in blocks */
59581 - atomic_t s_bal_ex_scanned; /* total extents scanned */
59582 - atomic_t s_bal_goals; /* goal hits */
59583 - atomic_t s_bal_breaks; /* too long searches */
59584 - atomic_t s_bal_2orders; /* 2^order hits */
59585 + atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */
59586 + atomic_unchecked_t s_bal_success; /* we found long enough chunks */
59587 + atomic_unchecked_t s_bal_allocated; /* in blocks */
59588 + atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */
59589 + atomic_unchecked_t s_bal_goals; /* goal hits */
59590 + atomic_unchecked_t s_bal_breaks; /* too long searches */
59591 + atomic_unchecked_t s_bal_2orders; /* 2^order hits */
59592 spinlock_t s_bal_lock;
59593 unsigned long s_mb_buddies_generated;
59594 unsigned long long s_mb_generation_time;
59595 - atomic_t s_mb_lost_chunks;
59596 - atomic_t s_mb_preallocated;
59597 - atomic_t s_mb_discarded;
59598 + atomic_unchecked_t s_mb_lost_chunks;
59599 + atomic_unchecked_t s_mb_preallocated;
59600 + atomic_unchecked_t s_mb_discarded;
59601 atomic_t s_lock_busy;
59602
59603 /* locality groups */
59604 diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
59605 index e6574d7..c30cbe2 100644
59606 --- a/fs/ext4/indirect.c
59607 +++ b/fs/ext4/indirect.c
59608 @@ -1345,8 +1345,8 @@ static int free_hole_blocks(handle_t *handle, struct inode *inode,
59609 if (level == 0 ||
59610 (bh && all_zeroes((__le32 *)bh->b_data,
59611 (__le32 *)bh->b_data + addr_per_block))) {
59612 - ext4_free_data(handle, inode, parent_bh, &blk, &blk+1);
59613 - *i_data = 0;
59614 + ext4_free_data(handle, inode, parent_bh,
59615 + i_data, i_data + 1);
59616 }
59617 brelse(bh);
59618 bh = NULL;
59619 diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
59620 index fe4e668..f983538 100644
59621 --- a/fs/ext4/mballoc.c
59622 +++ b/fs/ext4/mballoc.c
59623 @@ -1889,7 +1889,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
59624 BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
59625
59626 if (EXT4_SB(sb)->s_mb_stats)
59627 - atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
59628 + atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
59629
59630 break;
59631 }
59632 @@ -2199,7 +2199,7 @@ repeat:
59633 ac->ac_status = AC_STATUS_CONTINUE;
59634 ac->ac_flags |= EXT4_MB_HINT_FIRST;
59635 cr = 3;
59636 - atomic_inc(&sbi->s_mb_lost_chunks);
59637 + atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
59638 goto repeat;
59639 }
59640 }
59641 @@ -2707,25 +2707,25 @@ int ext4_mb_release(struct super_block *sb)
59642 if (sbi->s_mb_stats) {
59643 ext4_msg(sb, KERN_INFO,
59644 "mballoc: %u blocks %u reqs (%u success)",
59645 - atomic_read(&sbi->s_bal_allocated),
59646 - atomic_read(&sbi->s_bal_reqs),
59647 - atomic_read(&sbi->s_bal_success));
59648 + atomic_read_unchecked(&sbi->s_bal_allocated),
59649 + atomic_read_unchecked(&sbi->s_bal_reqs),
59650 + atomic_read_unchecked(&sbi->s_bal_success));
59651 ext4_msg(sb, KERN_INFO,
59652 "mballoc: %u extents scanned, %u goal hits, "
59653 "%u 2^N hits, %u breaks, %u lost",
59654 - atomic_read(&sbi->s_bal_ex_scanned),
59655 - atomic_read(&sbi->s_bal_goals),
59656 - atomic_read(&sbi->s_bal_2orders),
59657 - atomic_read(&sbi->s_bal_breaks),
59658 - atomic_read(&sbi->s_mb_lost_chunks));
59659 + atomic_read_unchecked(&sbi->s_bal_ex_scanned),
59660 + atomic_read_unchecked(&sbi->s_bal_goals),
59661 + atomic_read_unchecked(&sbi->s_bal_2orders),
59662 + atomic_read_unchecked(&sbi->s_bal_breaks),
59663 + atomic_read_unchecked(&sbi->s_mb_lost_chunks));
59664 ext4_msg(sb, KERN_INFO,
59665 "mballoc: %lu generated and it took %Lu",
59666 sbi->s_mb_buddies_generated,
59667 sbi->s_mb_generation_time);
59668 ext4_msg(sb, KERN_INFO,
59669 "mballoc: %u preallocated, %u discarded",
59670 - atomic_read(&sbi->s_mb_preallocated),
59671 - atomic_read(&sbi->s_mb_discarded));
59672 + atomic_read_unchecked(&sbi->s_mb_preallocated),
59673 + atomic_read_unchecked(&sbi->s_mb_discarded));
59674 }
59675
59676 free_percpu(sbi->s_locality_groups);
59677 @@ -3179,16 +3179,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
59678 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
59679
59680 if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
59681 - atomic_inc(&sbi->s_bal_reqs);
59682 - atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
59683 + atomic_inc_unchecked(&sbi->s_bal_reqs);
59684 + atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
59685 if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
59686 - atomic_inc(&sbi->s_bal_success);
59687 - atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
59688 + atomic_inc_unchecked(&sbi->s_bal_success);
59689 + atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
59690 if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
59691 ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
59692 - atomic_inc(&sbi->s_bal_goals);
59693 + atomic_inc_unchecked(&sbi->s_bal_goals);
59694 if (ac->ac_found > sbi->s_mb_max_to_scan)
59695 - atomic_inc(&sbi->s_bal_breaks);
59696 + atomic_inc_unchecked(&sbi->s_bal_breaks);
59697 }
59698
59699 if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
59700 @@ -3593,7 +3593,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
59701 trace_ext4_mb_new_inode_pa(ac, pa);
59702
59703 ext4_mb_use_inode_pa(ac, pa);
59704 - atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
59705 + atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
59706
59707 ei = EXT4_I(ac->ac_inode);
59708 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
59709 @@ -3653,7 +3653,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
59710 trace_ext4_mb_new_group_pa(ac, pa);
59711
59712 ext4_mb_use_group_pa(ac, pa);
59713 - atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
59714 + atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
59715
59716 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
59717 lg = ac->ac_lg;
59718 @@ -3742,7 +3742,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
59719 * from the bitmap and continue.
59720 */
59721 }
59722 - atomic_add(free, &sbi->s_mb_discarded);
59723 + atomic_add_unchecked(free, &sbi->s_mb_discarded);
59724
59725 return err;
59726 }
59727 @@ -3760,7 +3760,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
59728 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
59729 BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
59730 mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
59731 - atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
59732 + atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
59733 trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
59734
59735 return 0;
59736 diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
59737 index 04434ad..6404663 100644
59738 --- a/fs/ext4/mmp.c
59739 +++ b/fs/ext4/mmp.c
59740 @@ -113,7 +113,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
59741 void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,
59742 const char *function, unsigned int line, const char *msg)
59743 {
59744 - __ext4_warning(sb, function, line, msg);
59745 + __ext4_warning(sb, function, line, "%s", msg);
59746 __ext4_warning(sb, function, line,
59747 "MMP failure info: last update time: %llu, last update "
59748 "node: %s, last update device: %s\n",
59749 diff --git a/fs/ext4/super.c b/fs/ext4/super.c
59750 index 6f9e6fa..d0ebdb7 100644
59751 --- a/fs/ext4/super.c
59752 +++ b/fs/ext4/super.c
59753 @@ -1275,7 +1275,7 @@ static ext4_fsblk_t get_sb_block(void **data)
59754 }
59755
59756 #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
59757 -static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
59758 +static const char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
59759 "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
59760
59761 #ifdef CONFIG_QUOTA
59762 @@ -2455,7 +2455,7 @@ struct ext4_attr {
59763 int offset;
59764 int deprecated_val;
59765 } u;
59766 -};
59767 +} __do_const;
59768
59769 static int parse_strtoull(const char *buf,
59770 unsigned long long max, unsigned long long *value)
59771 @@ -3869,38 +3869,19 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
59772 goto failed_mount2;
59773 }
59774 }
59775 -
59776 - /*
59777 - * set up enough so that it can read an inode,
59778 - * and create new inode for buddy allocator
59779 - */
59780 - sbi->s_gdb_count = db_count;
59781 - if (!test_opt(sb, NOLOAD) &&
59782 - EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL))
59783 - sb->s_op = &ext4_sops;
59784 - else
59785 - sb->s_op = &ext4_nojournal_sops;
59786 -
59787 - ext4_ext_init(sb);
59788 - err = ext4_mb_init(sb);
59789 - if (err) {
59790 - ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)",
59791 - err);
59792 - goto failed_mount2;
59793 - }
59794 -
59795 if (!ext4_check_descriptors(sb, &first_not_zeroed)) {
59796 ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
59797 - goto failed_mount2a;
59798 + goto failed_mount2;
59799 }
59800 if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG))
59801 if (!ext4_fill_flex_info(sb)) {
59802 ext4_msg(sb, KERN_ERR,
59803 "unable to initialize "
59804 "flex_bg meta info!");
59805 - goto failed_mount2a;
59806 + goto failed_mount2;
59807 }
59808
59809 + sbi->s_gdb_count = db_count;
59810 get_random_bytes(&sbi->s_next_generation, sizeof(u32));
59811 spin_lock_init(&sbi->s_next_gen_lock);
59812
59813 @@ -3935,6 +3916,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
59814 sbi->s_stripe = ext4_get_stripe_size(sbi);
59815 sbi->s_extent_max_zeroout_kb = 32;
59816
59817 + /*
59818 + * set up enough so that it can read an inode
59819 + */
59820 + if (!test_opt(sb, NOLOAD) &&
59821 + EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL))
59822 + sb->s_op = &ext4_sops;
59823 + else
59824 + sb->s_op = &ext4_nojournal_sops;
59825 sb->s_export_op = &ext4_export_ops;
59826 sb->s_xattr = ext4_xattr_handlers;
59827 #ifdef CONFIG_QUOTA
59828 @@ -4124,13 +4113,21 @@ no_journal:
59829 if (err) {
59830 ext4_msg(sb, KERN_ERR, "failed to reserve %llu clusters for "
59831 "reserved pool", ext4_calculate_resv_clusters(sb));
59832 - goto failed_mount5;
59833 + goto failed_mount4a;
59834 }
59835
59836 err = ext4_setup_system_zone(sb);
59837 if (err) {
59838 ext4_msg(sb, KERN_ERR, "failed to initialize system "
59839 "zone (%d)", err);
59840 + goto failed_mount4a;
59841 + }
59842 +
59843 + ext4_ext_init(sb);
59844 + err = ext4_mb_init(sb);
59845 + if (err) {
59846 + ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)",
59847 + err);
59848 goto failed_mount5;
59849 }
59850
59851 @@ -4207,8 +4204,11 @@ failed_mount8:
59852 failed_mount7:
59853 ext4_unregister_li_request(sb);
59854 failed_mount6:
59855 - ext4_release_system_zone(sb);
59856 + ext4_mb_release(sb);
59857 failed_mount5:
59858 + ext4_ext_release(sb);
59859 + ext4_release_system_zone(sb);
59860 +failed_mount4a:
59861 dput(sb->s_root);
59862 sb->s_root = NULL;
59863 failed_mount4:
59864 @@ -4232,14 +4232,11 @@ failed_mount3:
59865 percpu_counter_destroy(&sbi->s_extent_cache_cnt);
59866 if (sbi->s_mmp_tsk)
59867 kthread_stop(sbi->s_mmp_tsk);
59868 -failed_mount2a:
59869 - ext4_mb_release(sb);
59870 failed_mount2:
59871 for (i = 0; i < db_count; i++)
59872 brelse(sbi->s_group_desc[i]);
59873 ext4_kvfree(sbi->s_group_desc);
59874 failed_mount:
59875 - ext4_ext_release(sb);
59876 if (sbi->s_chksum_driver)
59877 crypto_free_shash(sbi->s_chksum_driver);
59878 if (sbi->s_proc) {
59879 diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
59880 index 4eec399..1d9444c 100644
59881 --- a/fs/ext4/xattr.c
59882 +++ b/fs/ext4/xattr.c
59883 @@ -383,7 +383,7 @@ static int
59884 ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
59885 char *buffer, size_t buffer_size)
59886 {
59887 - size_t rest = buffer_size;
59888 + size_t rest = buffer_size, total_size = 0;
59889
59890 for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
59891 const struct xattr_handler *handler =
59892 @@ -400,9 +400,10 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
59893 buffer += size;
59894 }
59895 rest -= size;
59896 + total_size += size;
59897 }
59898 }
59899 - return buffer_size - rest;
59900 + return total_size;
59901 }
59902
59903 static int
59904 diff --git a/fs/fcntl.c b/fs/fcntl.c
59905 index 72c82f6..a18b263 100644
59906 --- a/fs/fcntl.c
59907 +++ b/fs/fcntl.c
59908 @@ -106,6 +106,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
59909 if (err)
59910 return err;
59911
59912 + if (gr_handle_chroot_fowner(pid, type))
59913 + return -ENOENT;
59914 + if (gr_check_protected_task_fowner(pid, type))
59915 + return -EACCES;
59916 +
59917 f_modown(filp, pid, type, force);
59918 return 0;
59919 }
59920 diff --git a/fs/fhandle.c b/fs/fhandle.c
59921 index 999ff5c..ac037c9 100644
59922 --- a/fs/fhandle.c
59923 +++ b/fs/fhandle.c
59924 @@ -8,6 +8,7 @@
59925 #include <linux/fs_struct.h>
59926 #include <linux/fsnotify.h>
59927 #include <linux/personality.h>
59928 +#include <linux/grsecurity.h>
59929 #include <asm/uaccess.h>
59930 #include "internal.h"
59931 #include "mount.h"
59932 @@ -67,8 +68,7 @@ static long do_sys_name_to_handle(struct path *path,
59933 } else
59934 retval = 0;
59935 /* copy the mount id */
59936 - if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
59937 - sizeof(*mnt_id)) ||
59938 + if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
59939 copy_to_user(ufh, handle,
59940 sizeof(struct file_handle) + handle_bytes))
59941 retval = -EFAULT;
59942 @@ -175,7 +175,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
59943 * the directory. Ideally we would like CAP_DAC_SEARCH.
59944 * But we don't have that
59945 */
59946 - if (!capable(CAP_DAC_READ_SEARCH)) {
59947 + if (!capable(CAP_DAC_READ_SEARCH) || !gr_chroot_fhandle()) {
59948 retval = -EPERM;
59949 goto out_err;
59950 }
59951 diff --git a/fs/file.c b/fs/file.c
59952 index 8f294cf..d0f3872 100644
59953 --- a/fs/file.c
59954 +++ b/fs/file.c
59955 @@ -16,6 +16,7 @@
59956 #include <linux/slab.h>
59957 #include <linux/vmalloc.h>
59958 #include <linux/file.h>
59959 +#include <linux/security.h>
59960 #include <linux/fdtable.h>
59961 #include <linux/bitops.h>
59962 #include <linux/interrupt.h>
59963 @@ -144,7 +145,7 @@ out:
59964 * Return <0 error code on error; 1 on successful completion.
59965 * The files->file_lock should be held on entry, and will be held on exit.
59966 */
59967 -static int expand_fdtable(struct files_struct *files, int nr)
59968 +static int expand_fdtable(struct files_struct *files, unsigned int nr)
59969 __releases(files->file_lock)
59970 __acquires(files->file_lock)
59971 {
59972 @@ -189,7 +190,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
59973 * expanded and execution may have blocked.
59974 * The files->file_lock should be held on entry, and will be held on exit.
59975 */
59976 -static int expand_files(struct files_struct *files, int nr)
59977 +static int expand_files(struct files_struct *files, unsigned int nr)
59978 {
59979 struct fdtable *fdt;
59980
59981 @@ -804,6 +805,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
59982 if (!file)
59983 return __close_fd(files, fd);
59984
59985 + gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
59986 if (fd >= rlimit(RLIMIT_NOFILE))
59987 return -EBADF;
59988
59989 @@ -830,6 +832,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
59990 if (unlikely(oldfd == newfd))
59991 return -EINVAL;
59992
59993 + gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
59994 if (newfd >= rlimit(RLIMIT_NOFILE))
59995 return -EBADF;
59996
59997 @@ -885,6 +888,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
59998 int f_dupfd(unsigned int from, struct file *file, unsigned flags)
59999 {
60000 int err;
60001 + gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
60002 if (from >= rlimit(RLIMIT_NOFILE))
60003 return -EINVAL;
60004 err = alloc_fd(from, flags);
60005 diff --git a/fs/filesystems.c b/fs/filesystems.c
60006 index 5797d45..7d7d79a 100644
60007 --- a/fs/filesystems.c
60008 +++ b/fs/filesystems.c
60009 @@ -275,7 +275,11 @@ struct file_system_type *get_fs_type(const char *name)
60010 int len = dot ? dot - name : strlen(name);
60011
60012 fs = __get_fs_type(name, len);
60013 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
60014 + if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
60015 +#else
60016 if (!fs && (request_module("fs-%.*s", len, name) == 0))
60017 +#endif
60018 fs = __get_fs_type(name, len);
60019
60020 if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
60021 diff --git a/fs/fs_struct.c b/fs/fs_struct.c
60022 index 7dca743..543d620 100644
60023 --- a/fs/fs_struct.c
60024 +++ b/fs/fs_struct.c
60025 @@ -4,6 +4,7 @@
60026 #include <linux/path.h>
60027 #include <linux/slab.h>
60028 #include <linux/fs_struct.h>
60029 +#include <linux/grsecurity.h>
60030 #include "internal.h"
60031
60032 /*
60033 @@ -19,6 +20,7 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
60034 write_seqcount_begin(&fs->seq);
60035 old_root = fs->root;
60036 fs->root = *path;
60037 + gr_set_chroot_entries(current, path);
60038 write_seqcount_end(&fs->seq);
60039 spin_unlock(&fs->lock);
60040 if (old_root.dentry)
60041 @@ -67,6 +69,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
60042 int hits = 0;
60043 spin_lock(&fs->lock);
60044 write_seqcount_begin(&fs->seq);
60045 + /* this root replacement is only done by pivot_root,
60046 + leave grsec's chroot tagging alone for this task
60047 + so that a pivoted root isn't treated as a chroot
60048 + */
60049 hits += replace_path(&fs->root, old_root, new_root);
60050 hits += replace_path(&fs->pwd, old_root, new_root);
60051 write_seqcount_end(&fs->seq);
60052 @@ -99,7 +105,8 @@ void exit_fs(struct task_struct *tsk)
60053 task_lock(tsk);
60054 spin_lock(&fs->lock);
60055 tsk->fs = NULL;
60056 - kill = !--fs->users;
60057 + gr_clear_chroot_entries(tsk);
60058 + kill = !atomic_dec_return(&fs->users);
60059 spin_unlock(&fs->lock);
60060 task_unlock(tsk);
60061 if (kill)
60062 @@ -112,7 +119,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
60063 struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
60064 /* We don't need to lock fs - think why ;-) */
60065 if (fs) {
60066 - fs->users = 1;
60067 + atomic_set(&fs->users, 1);
60068 fs->in_exec = 0;
60069 spin_lock_init(&fs->lock);
60070 seqcount_init(&fs->seq);
60071 @@ -121,6 +128,9 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
60072 spin_lock(&old->lock);
60073 fs->root = old->root;
60074 path_get(&fs->root);
60075 + /* instead of calling gr_set_chroot_entries here,
60076 + we call it from every caller of this function
60077 + */
60078 fs->pwd = old->pwd;
60079 path_get(&fs->pwd);
60080 spin_unlock(&old->lock);
60081 @@ -139,8 +149,9 @@ int unshare_fs_struct(void)
60082
60083 task_lock(current);
60084 spin_lock(&fs->lock);
60085 - kill = !--fs->users;
60086 + kill = !atomic_dec_return(&fs->users);
60087 current->fs = new_fs;
60088 + gr_set_chroot_entries(current, &new_fs->root);
60089 spin_unlock(&fs->lock);
60090 task_unlock(current);
60091
60092 @@ -153,13 +164,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
60093
60094 int current_umask(void)
60095 {
60096 - return current->fs->umask;
60097 + return current->fs->umask | gr_acl_umask();
60098 }
60099 EXPORT_SYMBOL(current_umask);
60100
60101 /* to be mentioned only in INIT_TASK */
60102 struct fs_struct init_fs = {
60103 - .users = 1,
60104 + .users = ATOMIC_INIT(1),
60105 .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock),
60106 .seq = SEQCNT_ZERO(init_fs.seq),
60107 .umask = 0022,
60108 diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
60109 index 29d7feb..303644d 100644
60110 --- a/fs/fscache/cookie.c
60111 +++ b/fs/fscache/cookie.c
60112 @@ -19,7 +19,7 @@
60113
60114 struct kmem_cache *fscache_cookie_jar;
60115
60116 -static atomic_t fscache_object_debug_id = ATOMIC_INIT(0);
60117 +static atomic_unchecked_t fscache_object_debug_id = ATOMIC_INIT(0);
60118
60119 static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie);
60120 static int fscache_alloc_object(struct fscache_cache *cache,
60121 @@ -69,11 +69,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
60122 parent ? (char *) parent->def->name : "<no-parent>",
60123 def->name, netfs_data, enable);
60124
60125 - fscache_stat(&fscache_n_acquires);
60126 + fscache_stat_unchecked(&fscache_n_acquires);
60127
60128 /* if there's no parent cookie, then we don't create one here either */
60129 if (!parent) {
60130 - fscache_stat(&fscache_n_acquires_null);
60131 + fscache_stat_unchecked(&fscache_n_acquires_null);
60132 _leave(" [no parent]");
60133 return NULL;
60134 }
60135 @@ -88,7 +88,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
60136 /* allocate and initialise a cookie */
60137 cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
60138 if (!cookie) {
60139 - fscache_stat(&fscache_n_acquires_oom);
60140 + fscache_stat_unchecked(&fscache_n_acquires_oom);
60141 _leave(" [ENOMEM]");
60142 return NULL;
60143 }
60144 @@ -115,13 +115,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
60145
60146 switch (cookie->def->type) {
60147 case FSCACHE_COOKIE_TYPE_INDEX:
60148 - fscache_stat(&fscache_n_cookie_index);
60149 + fscache_stat_unchecked(&fscache_n_cookie_index);
60150 break;
60151 case FSCACHE_COOKIE_TYPE_DATAFILE:
60152 - fscache_stat(&fscache_n_cookie_data);
60153 + fscache_stat_unchecked(&fscache_n_cookie_data);
60154 break;
60155 default:
60156 - fscache_stat(&fscache_n_cookie_special);
60157 + fscache_stat_unchecked(&fscache_n_cookie_special);
60158 break;
60159 }
60160
60161 @@ -135,7 +135,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
60162 } else {
60163 atomic_dec(&parent->n_children);
60164 __fscache_cookie_put(cookie);
60165 - fscache_stat(&fscache_n_acquires_nobufs);
60166 + fscache_stat_unchecked(&fscache_n_acquires_nobufs);
60167 _leave(" = NULL");
60168 return NULL;
60169 }
60170 @@ -144,7 +144,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
60171 }
60172 }
60173
60174 - fscache_stat(&fscache_n_acquires_ok);
60175 + fscache_stat_unchecked(&fscache_n_acquires_ok);
60176 _leave(" = %p", cookie);
60177 return cookie;
60178 }
60179 @@ -213,7 +213,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
60180 cache = fscache_select_cache_for_object(cookie->parent);
60181 if (!cache) {
60182 up_read(&fscache_addremove_sem);
60183 - fscache_stat(&fscache_n_acquires_no_cache);
60184 + fscache_stat_unchecked(&fscache_n_acquires_no_cache);
60185 _leave(" = -ENOMEDIUM [no cache]");
60186 return -ENOMEDIUM;
60187 }
60188 @@ -297,14 +297,14 @@ static int fscache_alloc_object(struct fscache_cache *cache,
60189 object = cache->ops->alloc_object(cache, cookie);
60190 fscache_stat_d(&fscache_n_cop_alloc_object);
60191 if (IS_ERR(object)) {
60192 - fscache_stat(&fscache_n_object_no_alloc);
60193 + fscache_stat_unchecked(&fscache_n_object_no_alloc);
60194 ret = PTR_ERR(object);
60195 goto error;
60196 }
60197
60198 - fscache_stat(&fscache_n_object_alloc);
60199 + fscache_stat_unchecked(&fscache_n_object_alloc);
60200
60201 - object->debug_id = atomic_inc_return(&fscache_object_debug_id);
60202 + object->debug_id = atomic_inc_return_unchecked(&fscache_object_debug_id);
60203
60204 _debug("ALLOC OBJ%x: %s {%lx}",
60205 object->debug_id, cookie->def->name, object->events);
60206 @@ -418,7 +418,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
60207
60208 _enter("{%s}", cookie->def->name);
60209
60210 - fscache_stat(&fscache_n_invalidates);
60211 + fscache_stat_unchecked(&fscache_n_invalidates);
60212
60213 /* Only permit invalidation of data files. Invalidating an index will
60214 * require the caller to release all its attachments to the tree rooted
60215 @@ -477,10 +477,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
60216 {
60217 struct fscache_object *object;
60218
60219 - fscache_stat(&fscache_n_updates);
60220 + fscache_stat_unchecked(&fscache_n_updates);
60221
60222 if (!cookie) {
60223 - fscache_stat(&fscache_n_updates_null);
60224 + fscache_stat_unchecked(&fscache_n_updates_null);
60225 _leave(" [no cookie]");
60226 return;
60227 }
60228 @@ -581,12 +581,12 @@ EXPORT_SYMBOL(__fscache_disable_cookie);
60229 */
60230 void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
60231 {
60232 - fscache_stat(&fscache_n_relinquishes);
60233 + fscache_stat_unchecked(&fscache_n_relinquishes);
60234 if (retire)
60235 - fscache_stat(&fscache_n_relinquishes_retire);
60236 + fscache_stat_unchecked(&fscache_n_relinquishes_retire);
60237
60238 if (!cookie) {
60239 - fscache_stat(&fscache_n_relinquishes_null);
60240 + fscache_stat_unchecked(&fscache_n_relinquishes_null);
60241 _leave(" [no cookie]");
60242 return;
60243 }
60244 @@ -687,7 +687,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
60245 if (test_bit(FSCACHE_IOERROR, &object->cache->flags))
60246 goto inconsistent;
60247
60248 - op->debug_id = atomic_inc_return(&fscache_op_debug_id);
60249 + op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
60250
60251 __fscache_use_cookie(cookie);
60252 if (fscache_submit_op(object, op) < 0)
60253 diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
60254 index 4226f66..0fb3f45 100644
60255 --- a/fs/fscache/internal.h
60256 +++ b/fs/fscache/internal.h
60257 @@ -133,8 +133,8 @@ extern void fscache_operation_gc(struct work_struct *);
60258 extern int fscache_wait_for_deferred_lookup(struct fscache_cookie *);
60259 extern int fscache_wait_for_operation_activation(struct fscache_object *,
60260 struct fscache_operation *,
60261 - atomic_t *,
60262 - atomic_t *,
60263 + atomic_unchecked_t *,
60264 + atomic_unchecked_t *,
60265 void (*)(struct fscache_operation *));
60266 extern void fscache_invalidate_writes(struct fscache_cookie *);
60267
60268 @@ -153,101 +153,101 @@ extern void fscache_proc_cleanup(void);
60269 * stats.c
60270 */
60271 #ifdef CONFIG_FSCACHE_STATS
60272 -extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
60273 -extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
60274 +extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
60275 +extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
60276
60277 -extern atomic_t fscache_n_op_pend;
60278 -extern atomic_t fscache_n_op_run;
60279 -extern atomic_t fscache_n_op_enqueue;
60280 -extern atomic_t fscache_n_op_deferred_release;
60281 -extern atomic_t fscache_n_op_release;
60282 -extern atomic_t fscache_n_op_gc;
60283 -extern atomic_t fscache_n_op_cancelled;
60284 -extern atomic_t fscache_n_op_rejected;
60285 +extern atomic_unchecked_t fscache_n_op_pend;
60286 +extern atomic_unchecked_t fscache_n_op_run;
60287 +extern atomic_unchecked_t fscache_n_op_enqueue;
60288 +extern atomic_unchecked_t fscache_n_op_deferred_release;
60289 +extern atomic_unchecked_t fscache_n_op_release;
60290 +extern atomic_unchecked_t fscache_n_op_gc;
60291 +extern atomic_unchecked_t fscache_n_op_cancelled;
60292 +extern atomic_unchecked_t fscache_n_op_rejected;
60293
60294 -extern atomic_t fscache_n_attr_changed;
60295 -extern atomic_t fscache_n_attr_changed_ok;
60296 -extern atomic_t fscache_n_attr_changed_nobufs;
60297 -extern atomic_t fscache_n_attr_changed_nomem;
60298 -extern atomic_t fscache_n_attr_changed_calls;
60299 +extern atomic_unchecked_t fscache_n_attr_changed;
60300 +extern atomic_unchecked_t fscache_n_attr_changed_ok;
60301 +extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
60302 +extern atomic_unchecked_t fscache_n_attr_changed_nomem;
60303 +extern atomic_unchecked_t fscache_n_attr_changed_calls;
60304
60305 -extern atomic_t fscache_n_allocs;
60306 -extern atomic_t fscache_n_allocs_ok;
60307 -extern atomic_t fscache_n_allocs_wait;
60308 -extern atomic_t fscache_n_allocs_nobufs;
60309 -extern atomic_t fscache_n_allocs_intr;
60310 -extern atomic_t fscache_n_allocs_object_dead;
60311 -extern atomic_t fscache_n_alloc_ops;
60312 -extern atomic_t fscache_n_alloc_op_waits;
60313 +extern atomic_unchecked_t fscache_n_allocs;
60314 +extern atomic_unchecked_t fscache_n_allocs_ok;
60315 +extern atomic_unchecked_t fscache_n_allocs_wait;
60316 +extern atomic_unchecked_t fscache_n_allocs_nobufs;
60317 +extern atomic_unchecked_t fscache_n_allocs_intr;
60318 +extern atomic_unchecked_t fscache_n_allocs_object_dead;
60319 +extern atomic_unchecked_t fscache_n_alloc_ops;
60320 +extern atomic_unchecked_t fscache_n_alloc_op_waits;
60321
60322 -extern atomic_t fscache_n_retrievals;
60323 -extern atomic_t fscache_n_retrievals_ok;
60324 -extern atomic_t fscache_n_retrievals_wait;
60325 -extern atomic_t fscache_n_retrievals_nodata;
60326 -extern atomic_t fscache_n_retrievals_nobufs;
60327 -extern atomic_t fscache_n_retrievals_intr;
60328 -extern atomic_t fscache_n_retrievals_nomem;
60329 -extern atomic_t fscache_n_retrievals_object_dead;
60330 -extern atomic_t fscache_n_retrieval_ops;
60331 -extern atomic_t fscache_n_retrieval_op_waits;
60332 +extern atomic_unchecked_t fscache_n_retrievals;
60333 +extern atomic_unchecked_t fscache_n_retrievals_ok;
60334 +extern atomic_unchecked_t fscache_n_retrievals_wait;
60335 +extern atomic_unchecked_t fscache_n_retrievals_nodata;
60336 +extern atomic_unchecked_t fscache_n_retrievals_nobufs;
60337 +extern atomic_unchecked_t fscache_n_retrievals_intr;
60338 +extern atomic_unchecked_t fscache_n_retrievals_nomem;
60339 +extern atomic_unchecked_t fscache_n_retrievals_object_dead;
60340 +extern atomic_unchecked_t fscache_n_retrieval_ops;
60341 +extern atomic_unchecked_t fscache_n_retrieval_op_waits;
60342
60343 -extern atomic_t fscache_n_stores;
60344 -extern atomic_t fscache_n_stores_ok;
60345 -extern atomic_t fscache_n_stores_again;
60346 -extern atomic_t fscache_n_stores_nobufs;
60347 -extern atomic_t fscache_n_stores_oom;
60348 -extern atomic_t fscache_n_store_ops;
60349 -extern atomic_t fscache_n_store_calls;
60350 -extern atomic_t fscache_n_store_pages;
60351 -extern atomic_t fscache_n_store_radix_deletes;
60352 -extern atomic_t fscache_n_store_pages_over_limit;
60353 +extern atomic_unchecked_t fscache_n_stores;
60354 +extern atomic_unchecked_t fscache_n_stores_ok;
60355 +extern atomic_unchecked_t fscache_n_stores_again;
60356 +extern atomic_unchecked_t fscache_n_stores_nobufs;
60357 +extern atomic_unchecked_t fscache_n_stores_oom;
60358 +extern atomic_unchecked_t fscache_n_store_ops;
60359 +extern atomic_unchecked_t fscache_n_store_calls;
60360 +extern atomic_unchecked_t fscache_n_store_pages;
60361 +extern atomic_unchecked_t fscache_n_store_radix_deletes;
60362 +extern atomic_unchecked_t fscache_n_store_pages_over_limit;
60363
60364 -extern atomic_t fscache_n_store_vmscan_not_storing;
60365 -extern atomic_t fscache_n_store_vmscan_gone;
60366 -extern atomic_t fscache_n_store_vmscan_busy;
60367 -extern atomic_t fscache_n_store_vmscan_cancelled;
60368 -extern atomic_t fscache_n_store_vmscan_wait;
60369 +extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
60370 +extern atomic_unchecked_t fscache_n_store_vmscan_gone;
60371 +extern atomic_unchecked_t fscache_n_store_vmscan_busy;
60372 +extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
60373 +extern atomic_unchecked_t fscache_n_store_vmscan_wait;
60374
60375 -extern atomic_t fscache_n_marks;
60376 -extern atomic_t fscache_n_uncaches;
60377 +extern atomic_unchecked_t fscache_n_marks;
60378 +extern atomic_unchecked_t fscache_n_uncaches;
60379
60380 -extern atomic_t fscache_n_acquires;
60381 -extern atomic_t fscache_n_acquires_null;
60382 -extern atomic_t fscache_n_acquires_no_cache;
60383 -extern atomic_t fscache_n_acquires_ok;
60384 -extern atomic_t fscache_n_acquires_nobufs;
60385 -extern atomic_t fscache_n_acquires_oom;
60386 +extern atomic_unchecked_t fscache_n_acquires;
60387 +extern atomic_unchecked_t fscache_n_acquires_null;
60388 +extern atomic_unchecked_t fscache_n_acquires_no_cache;
60389 +extern atomic_unchecked_t fscache_n_acquires_ok;
60390 +extern atomic_unchecked_t fscache_n_acquires_nobufs;
60391 +extern atomic_unchecked_t fscache_n_acquires_oom;
60392
60393 -extern atomic_t fscache_n_invalidates;
60394 -extern atomic_t fscache_n_invalidates_run;
60395 +extern atomic_unchecked_t fscache_n_invalidates;
60396 +extern atomic_unchecked_t fscache_n_invalidates_run;
60397
60398 -extern atomic_t fscache_n_updates;
60399 -extern atomic_t fscache_n_updates_null;
60400 -extern atomic_t fscache_n_updates_run;
60401 +extern atomic_unchecked_t fscache_n_updates;
60402 +extern atomic_unchecked_t fscache_n_updates_null;
60403 +extern atomic_unchecked_t fscache_n_updates_run;
60404
60405 -extern atomic_t fscache_n_relinquishes;
60406 -extern atomic_t fscache_n_relinquishes_null;
60407 -extern atomic_t fscache_n_relinquishes_waitcrt;
60408 -extern atomic_t fscache_n_relinquishes_retire;
60409 +extern atomic_unchecked_t fscache_n_relinquishes;
60410 +extern atomic_unchecked_t fscache_n_relinquishes_null;
60411 +extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
60412 +extern atomic_unchecked_t fscache_n_relinquishes_retire;
60413
60414 -extern atomic_t fscache_n_cookie_index;
60415 -extern atomic_t fscache_n_cookie_data;
60416 -extern atomic_t fscache_n_cookie_special;
60417 +extern atomic_unchecked_t fscache_n_cookie_index;
60418 +extern atomic_unchecked_t fscache_n_cookie_data;
60419 +extern atomic_unchecked_t fscache_n_cookie_special;
60420
60421 -extern atomic_t fscache_n_object_alloc;
60422 -extern atomic_t fscache_n_object_no_alloc;
60423 -extern atomic_t fscache_n_object_lookups;
60424 -extern atomic_t fscache_n_object_lookups_negative;
60425 -extern atomic_t fscache_n_object_lookups_positive;
60426 -extern atomic_t fscache_n_object_lookups_timed_out;
60427 -extern atomic_t fscache_n_object_created;
60428 -extern atomic_t fscache_n_object_avail;
60429 -extern atomic_t fscache_n_object_dead;
60430 +extern atomic_unchecked_t fscache_n_object_alloc;
60431 +extern atomic_unchecked_t fscache_n_object_no_alloc;
60432 +extern atomic_unchecked_t fscache_n_object_lookups;
60433 +extern atomic_unchecked_t fscache_n_object_lookups_negative;
60434 +extern atomic_unchecked_t fscache_n_object_lookups_positive;
60435 +extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
60436 +extern atomic_unchecked_t fscache_n_object_created;
60437 +extern atomic_unchecked_t fscache_n_object_avail;
60438 +extern atomic_unchecked_t fscache_n_object_dead;
60439
60440 -extern atomic_t fscache_n_checkaux_none;
60441 -extern atomic_t fscache_n_checkaux_okay;
60442 -extern atomic_t fscache_n_checkaux_update;
60443 -extern atomic_t fscache_n_checkaux_obsolete;
60444 +extern atomic_unchecked_t fscache_n_checkaux_none;
60445 +extern atomic_unchecked_t fscache_n_checkaux_okay;
60446 +extern atomic_unchecked_t fscache_n_checkaux_update;
60447 +extern atomic_unchecked_t fscache_n_checkaux_obsolete;
60448
60449 extern atomic_t fscache_n_cop_alloc_object;
60450 extern atomic_t fscache_n_cop_lookup_object;
60451 @@ -272,6 +272,11 @@ static inline void fscache_stat(atomic_t *stat)
60452 atomic_inc(stat);
60453 }
60454
60455 +static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
60456 +{
60457 + atomic_inc_unchecked(stat);
60458 +}
60459 +
60460 static inline void fscache_stat_d(atomic_t *stat)
60461 {
60462 atomic_dec(stat);
60463 @@ -284,6 +289,7 @@ extern const struct file_operations fscache_stats_fops;
60464
60465 #define __fscache_stat(stat) (NULL)
60466 #define fscache_stat(stat) do {} while (0)
60467 +#define fscache_stat_unchecked(stat) do {} while (0)
60468 #define fscache_stat_d(stat) do {} while (0)
60469 #endif
60470
60471 diff --git a/fs/fscache/object.c b/fs/fscache/object.c
60472 index d3b4539..ed0c659 100644
60473 --- a/fs/fscache/object.c
60474 +++ b/fs/fscache/object.c
60475 @@ -454,7 +454,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
60476 _debug("LOOKUP \"%s\" in \"%s\"",
60477 cookie->def->name, object->cache->tag->name);
60478
60479 - fscache_stat(&fscache_n_object_lookups);
60480 + fscache_stat_unchecked(&fscache_n_object_lookups);
60481 fscache_stat(&fscache_n_cop_lookup_object);
60482 ret = object->cache->ops->lookup_object(object);
60483 fscache_stat_d(&fscache_n_cop_lookup_object);
60484 @@ -464,7 +464,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
60485 if (ret == -ETIMEDOUT) {
60486 /* probably stuck behind another object, so move this one to
60487 * the back of the queue */
60488 - fscache_stat(&fscache_n_object_lookups_timed_out);
60489 + fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
60490 _leave(" [timeout]");
60491 return NO_TRANSIT;
60492 }
60493 @@ -492,7 +492,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
60494 _enter("{OBJ%x,%s}", object->debug_id, object->state->name);
60495
60496 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
60497 - fscache_stat(&fscache_n_object_lookups_negative);
60498 + fscache_stat_unchecked(&fscache_n_object_lookups_negative);
60499
60500 /* Allow write requests to begin stacking up and read requests to begin
60501 * returning ENODATA.
60502 @@ -527,7 +527,7 @@ void fscache_obtained_object(struct fscache_object *object)
60503 /* if we were still looking up, then we must have a positive lookup
60504 * result, in which case there may be data available */
60505 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
60506 - fscache_stat(&fscache_n_object_lookups_positive);
60507 + fscache_stat_unchecked(&fscache_n_object_lookups_positive);
60508
60509 /* We do (presumably) have data */
60510 clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
60511 @@ -539,7 +539,7 @@ void fscache_obtained_object(struct fscache_object *object)
60512 clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
60513 wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
60514 } else {
60515 - fscache_stat(&fscache_n_object_created);
60516 + fscache_stat_unchecked(&fscache_n_object_created);
60517 }
60518
60519 set_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
60520 @@ -575,7 +575,7 @@ static const struct fscache_state *fscache_object_available(struct fscache_objec
60521 fscache_stat_d(&fscache_n_cop_lookup_complete);
60522
60523 fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
60524 - fscache_stat(&fscache_n_object_avail);
60525 + fscache_stat_unchecked(&fscache_n_object_avail);
60526
60527 _leave("");
60528 return transit_to(JUMPSTART_DEPS);
60529 @@ -722,7 +722,7 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
60530
60531 /* this just shifts the object release to the work processor */
60532 fscache_put_object(object);
60533 - fscache_stat(&fscache_n_object_dead);
60534 + fscache_stat_unchecked(&fscache_n_object_dead);
60535
60536 _leave("");
60537 return transit_to(OBJECT_DEAD);
60538 @@ -887,7 +887,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
60539 enum fscache_checkaux result;
60540
60541 if (!object->cookie->def->check_aux) {
60542 - fscache_stat(&fscache_n_checkaux_none);
60543 + fscache_stat_unchecked(&fscache_n_checkaux_none);
60544 return FSCACHE_CHECKAUX_OKAY;
60545 }
60546
60547 @@ -896,17 +896,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
60548 switch (result) {
60549 /* entry okay as is */
60550 case FSCACHE_CHECKAUX_OKAY:
60551 - fscache_stat(&fscache_n_checkaux_okay);
60552 + fscache_stat_unchecked(&fscache_n_checkaux_okay);
60553 break;
60554
60555 /* entry requires update */
60556 case FSCACHE_CHECKAUX_NEEDS_UPDATE:
60557 - fscache_stat(&fscache_n_checkaux_update);
60558 + fscache_stat_unchecked(&fscache_n_checkaux_update);
60559 break;
60560
60561 /* entry requires deletion */
60562 case FSCACHE_CHECKAUX_OBSOLETE:
60563 - fscache_stat(&fscache_n_checkaux_obsolete);
60564 + fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
60565 break;
60566
60567 default:
60568 @@ -992,7 +992,7 @@ static const struct fscache_state *fscache_invalidate_object(struct fscache_obje
60569 {
60570 const struct fscache_state *s;
60571
60572 - fscache_stat(&fscache_n_invalidates_run);
60573 + fscache_stat_unchecked(&fscache_n_invalidates_run);
60574 fscache_stat(&fscache_n_cop_invalidate_object);
60575 s = _fscache_invalidate_object(object, event);
60576 fscache_stat_d(&fscache_n_cop_invalidate_object);
60577 @@ -1007,7 +1007,7 @@ static const struct fscache_state *fscache_update_object(struct fscache_object *
60578 {
60579 _enter("{OBJ%x},%d", object->debug_id, event);
60580
60581 - fscache_stat(&fscache_n_updates_run);
60582 + fscache_stat_unchecked(&fscache_n_updates_run);
60583 fscache_stat(&fscache_n_cop_update_object);
60584 object->cache->ops->update_object(object);
60585 fscache_stat_d(&fscache_n_cop_update_object);
60586 diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
60587 index 318071a..379938b 100644
60588 --- a/fs/fscache/operation.c
60589 +++ b/fs/fscache/operation.c
60590 @@ -17,7 +17,7 @@
60591 #include <linux/slab.h>
60592 #include "internal.h"
60593
60594 -atomic_t fscache_op_debug_id;
60595 +atomic_unchecked_t fscache_op_debug_id;
60596 EXPORT_SYMBOL(fscache_op_debug_id);
60597
60598 /**
60599 @@ -39,7 +39,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
60600 ASSERTCMP(atomic_read(&op->usage), >, 0);
60601 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
60602
60603 - fscache_stat(&fscache_n_op_enqueue);
60604 + fscache_stat_unchecked(&fscache_n_op_enqueue);
60605 switch (op->flags & FSCACHE_OP_TYPE) {
60606 case FSCACHE_OP_ASYNC:
60607 _debug("queue async");
60608 @@ -73,7 +73,7 @@ static void fscache_run_op(struct fscache_object *object,
60609 wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
60610 if (op->processor)
60611 fscache_enqueue_operation(op);
60612 - fscache_stat(&fscache_n_op_run);
60613 + fscache_stat_unchecked(&fscache_n_op_run);
60614 }
60615
60616 /*
60617 @@ -105,11 +105,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
60618 if (object->n_in_progress > 0) {
60619 atomic_inc(&op->usage);
60620 list_add_tail(&op->pend_link, &object->pending_ops);
60621 - fscache_stat(&fscache_n_op_pend);
60622 + fscache_stat_unchecked(&fscache_n_op_pend);
60623 } else if (!list_empty(&object->pending_ops)) {
60624 atomic_inc(&op->usage);
60625 list_add_tail(&op->pend_link, &object->pending_ops);
60626 - fscache_stat(&fscache_n_op_pend);
60627 + fscache_stat_unchecked(&fscache_n_op_pend);
60628 fscache_start_operations(object);
60629 } else {
60630 ASSERTCMP(object->n_in_progress, ==, 0);
60631 @@ -125,7 +125,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
60632 object->n_exclusive++; /* reads and writes must wait */
60633 atomic_inc(&op->usage);
60634 list_add_tail(&op->pend_link, &object->pending_ops);
60635 - fscache_stat(&fscache_n_op_pend);
60636 + fscache_stat_unchecked(&fscache_n_op_pend);
60637 ret = 0;
60638 } else {
60639 /* If we're in any other state, there must have been an I/O
60640 @@ -212,11 +212,11 @@ int fscache_submit_op(struct fscache_object *object,
60641 if (object->n_exclusive > 0) {
60642 atomic_inc(&op->usage);
60643 list_add_tail(&op->pend_link, &object->pending_ops);
60644 - fscache_stat(&fscache_n_op_pend);
60645 + fscache_stat_unchecked(&fscache_n_op_pend);
60646 } else if (!list_empty(&object->pending_ops)) {
60647 atomic_inc(&op->usage);
60648 list_add_tail(&op->pend_link, &object->pending_ops);
60649 - fscache_stat(&fscache_n_op_pend);
60650 + fscache_stat_unchecked(&fscache_n_op_pend);
60651 fscache_start_operations(object);
60652 } else {
60653 ASSERTCMP(object->n_exclusive, ==, 0);
60654 @@ -228,10 +228,10 @@ int fscache_submit_op(struct fscache_object *object,
60655 object->n_ops++;
60656 atomic_inc(&op->usage);
60657 list_add_tail(&op->pend_link, &object->pending_ops);
60658 - fscache_stat(&fscache_n_op_pend);
60659 + fscache_stat_unchecked(&fscache_n_op_pend);
60660 ret = 0;
60661 } else if (fscache_object_is_dying(object)) {
60662 - fscache_stat(&fscache_n_op_rejected);
60663 + fscache_stat_unchecked(&fscache_n_op_rejected);
60664 op->state = FSCACHE_OP_ST_CANCELLED;
60665 ret = -ENOBUFS;
60666 } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
60667 @@ -310,7 +310,7 @@ int fscache_cancel_op(struct fscache_operation *op,
60668 ret = -EBUSY;
60669 if (op->state == FSCACHE_OP_ST_PENDING) {
60670 ASSERT(!list_empty(&op->pend_link));
60671 - fscache_stat(&fscache_n_op_cancelled);
60672 + fscache_stat_unchecked(&fscache_n_op_cancelled);
60673 list_del_init(&op->pend_link);
60674 if (do_cancel)
60675 do_cancel(op);
60676 @@ -342,7 +342,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
60677 while (!list_empty(&object->pending_ops)) {
60678 op = list_entry(object->pending_ops.next,
60679 struct fscache_operation, pend_link);
60680 - fscache_stat(&fscache_n_op_cancelled);
60681 + fscache_stat_unchecked(&fscache_n_op_cancelled);
60682 list_del_init(&op->pend_link);
60683
60684 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
60685 @@ -414,7 +414,7 @@ void fscache_put_operation(struct fscache_operation *op)
60686 op->state, ==, FSCACHE_OP_ST_CANCELLED);
60687 op->state = FSCACHE_OP_ST_DEAD;
60688
60689 - fscache_stat(&fscache_n_op_release);
60690 + fscache_stat_unchecked(&fscache_n_op_release);
60691
60692 if (op->release) {
60693 op->release(op);
60694 @@ -433,7 +433,7 @@ void fscache_put_operation(struct fscache_operation *op)
60695 * lock, and defer it otherwise */
60696 if (!spin_trylock(&object->lock)) {
60697 _debug("defer put");
60698 - fscache_stat(&fscache_n_op_deferred_release);
60699 + fscache_stat_unchecked(&fscache_n_op_deferred_release);
60700
60701 cache = object->cache;
60702 spin_lock(&cache->op_gc_list_lock);
60703 @@ -486,7 +486,7 @@ void fscache_operation_gc(struct work_struct *work)
60704
60705 _debug("GC DEFERRED REL OBJ%x OP%x",
60706 object->debug_id, op->debug_id);
60707 - fscache_stat(&fscache_n_op_gc);
60708 + fscache_stat_unchecked(&fscache_n_op_gc);
60709
60710 ASSERTCMP(atomic_read(&op->usage), ==, 0);
60711 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
60712 diff --git a/fs/fscache/page.c b/fs/fscache/page.c
60713 index 7f5c658..6c1e164 100644
60714 --- a/fs/fscache/page.c
60715 +++ b/fs/fscache/page.c
60716 @@ -61,7 +61,7 @@ try_again:
60717 val = radix_tree_lookup(&cookie->stores, page->index);
60718 if (!val) {
60719 rcu_read_unlock();
60720 - fscache_stat(&fscache_n_store_vmscan_not_storing);
60721 + fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
60722 __fscache_uncache_page(cookie, page);
60723 return true;
60724 }
60725 @@ -91,11 +91,11 @@ try_again:
60726 spin_unlock(&cookie->stores_lock);
60727
60728 if (xpage) {
60729 - fscache_stat(&fscache_n_store_vmscan_cancelled);
60730 - fscache_stat(&fscache_n_store_radix_deletes);
60731 + fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
60732 + fscache_stat_unchecked(&fscache_n_store_radix_deletes);
60733 ASSERTCMP(xpage, ==, page);
60734 } else {
60735 - fscache_stat(&fscache_n_store_vmscan_gone);
60736 + fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
60737 }
60738
60739 wake_up_bit(&cookie->flags, 0);
60740 @@ -110,11 +110,11 @@ page_busy:
60741 * sleeping on memory allocation, so we may need to impose a timeout
60742 * too. */
60743 if (!(gfp & __GFP_WAIT) || !(gfp & __GFP_FS)) {
60744 - fscache_stat(&fscache_n_store_vmscan_busy);
60745 + fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
60746 return false;
60747 }
60748
60749 - fscache_stat(&fscache_n_store_vmscan_wait);
60750 + fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
60751 __fscache_wait_on_page_write(cookie, page);
60752 gfp &= ~__GFP_WAIT;
60753 goto try_again;
60754 @@ -140,7 +140,7 @@ static void fscache_end_page_write(struct fscache_object *object,
60755 FSCACHE_COOKIE_STORING_TAG);
60756 if (!radix_tree_tag_get(&cookie->stores, page->index,
60757 FSCACHE_COOKIE_PENDING_TAG)) {
60758 - fscache_stat(&fscache_n_store_radix_deletes);
60759 + fscache_stat_unchecked(&fscache_n_store_radix_deletes);
60760 xpage = radix_tree_delete(&cookie->stores, page->index);
60761 }
60762 spin_unlock(&cookie->stores_lock);
60763 @@ -161,7 +161,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
60764
60765 _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
60766
60767 - fscache_stat(&fscache_n_attr_changed_calls);
60768 + fscache_stat_unchecked(&fscache_n_attr_changed_calls);
60769
60770 if (fscache_object_is_active(object)) {
60771 fscache_stat(&fscache_n_cop_attr_changed);
60772 @@ -188,11 +188,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
60773
60774 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
60775
60776 - fscache_stat(&fscache_n_attr_changed);
60777 + fscache_stat_unchecked(&fscache_n_attr_changed);
60778
60779 op = kzalloc(sizeof(*op), GFP_KERNEL);
60780 if (!op) {
60781 - fscache_stat(&fscache_n_attr_changed_nomem);
60782 + fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
60783 _leave(" = -ENOMEM");
60784 return -ENOMEM;
60785 }
60786 @@ -214,7 +214,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
60787 if (fscache_submit_exclusive_op(object, op) < 0)
60788 goto nobufs;
60789 spin_unlock(&cookie->lock);
60790 - fscache_stat(&fscache_n_attr_changed_ok);
60791 + fscache_stat_unchecked(&fscache_n_attr_changed_ok);
60792 fscache_put_operation(op);
60793 _leave(" = 0");
60794 return 0;
60795 @@ -225,7 +225,7 @@ nobufs:
60796 kfree(op);
60797 if (wake_cookie)
60798 __fscache_wake_unused_cookie(cookie);
60799 - fscache_stat(&fscache_n_attr_changed_nobufs);
60800 + fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
60801 _leave(" = %d", -ENOBUFS);
60802 return -ENOBUFS;
60803 }
60804 @@ -264,7 +264,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
60805 /* allocate a retrieval operation and attempt to submit it */
60806 op = kzalloc(sizeof(*op), GFP_NOIO);
60807 if (!op) {
60808 - fscache_stat(&fscache_n_retrievals_nomem);
60809 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
60810 return NULL;
60811 }
60812
60813 @@ -294,13 +294,13 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
60814 return 0;
60815 }
60816
60817 - fscache_stat(&fscache_n_retrievals_wait);
60818 + fscache_stat_unchecked(&fscache_n_retrievals_wait);
60819
60820 jif = jiffies;
60821 if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
60822 fscache_wait_bit_interruptible,
60823 TASK_INTERRUPTIBLE) != 0) {
60824 - fscache_stat(&fscache_n_retrievals_intr);
60825 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
60826 _leave(" = -ERESTARTSYS");
60827 return -ERESTARTSYS;
60828 }
60829 @@ -329,8 +329,8 @@ static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
60830 */
60831 int fscache_wait_for_operation_activation(struct fscache_object *object,
60832 struct fscache_operation *op,
60833 - atomic_t *stat_op_waits,
60834 - atomic_t *stat_object_dead,
60835 + atomic_unchecked_t *stat_op_waits,
60836 + atomic_unchecked_t *stat_object_dead,
60837 void (*do_cancel)(struct fscache_operation *))
60838 {
60839 int ret;
60840 @@ -340,7 +340,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
60841
60842 _debug(">>> WT");
60843 if (stat_op_waits)
60844 - fscache_stat(stat_op_waits);
60845 + fscache_stat_unchecked(stat_op_waits);
60846 if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
60847 fscache_wait_bit_interruptible,
60848 TASK_INTERRUPTIBLE) != 0) {
60849 @@ -358,7 +358,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
60850 check_if_dead:
60851 if (op->state == FSCACHE_OP_ST_CANCELLED) {
60852 if (stat_object_dead)
60853 - fscache_stat(stat_object_dead);
60854 + fscache_stat_unchecked(stat_object_dead);
60855 _leave(" = -ENOBUFS [cancelled]");
60856 return -ENOBUFS;
60857 }
60858 @@ -366,7 +366,7 @@ check_if_dead:
60859 pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->state);
60860 fscache_cancel_op(op, do_cancel);
60861 if (stat_object_dead)
60862 - fscache_stat(stat_object_dead);
60863 + fscache_stat_unchecked(stat_object_dead);
60864 return -ENOBUFS;
60865 }
60866 return 0;
60867 @@ -394,7 +394,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
60868
60869 _enter("%p,%p,,,", cookie, page);
60870
60871 - fscache_stat(&fscache_n_retrievals);
60872 + fscache_stat_unchecked(&fscache_n_retrievals);
60873
60874 if (hlist_empty(&cookie->backing_objects))
60875 goto nobufs;
60876 @@ -436,7 +436,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
60877 goto nobufs_unlock_dec;
60878 spin_unlock(&cookie->lock);
60879
60880 - fscache_stat(&fscache_n_retrieval_ops);
60881 + fscache_stat_unchecked(&fscache_n_retrieval_ops);
60882
60883 /* pin the netfs read context in case we need to do the actual netfs
60884 * read because we've encountered a cache read failure */
60885 @@ -467,15 +467,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
60886
60887 error:
60888 if (ret == -ENOMEM)
60889 - fscache_stat(&fscache_n_retrievals_nomem);
60890 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
60891 else if (ret == -ERESTARTSYS)
60892 - fscache_stat(&fscache_n_retrievals_intr);
60893 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
60894 else if (ret == -ENODATA)
60895 - fscache_stat(&fscache_n_retrievals_nodata);
60896 + fscache_stat_unchecked(&fscache_n_retrievals_nodata);
60897 else if (ret < 0)
60898 - fscache_stat(&fscache_n_retrievals_nobufs);
60899 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
60900 else
60901 - fscache_stat(&fscache_n_retrievals_ok);
60902 + fscache_stat_unchecked(&fscache_n_retrievals_ok);
60903
60904 fscache_put_retrieval(op);
60905 _leave(" = %d", ret);
60906 @@ -490,7 +490,7 @@ nobufs_unlock:
60907 __fscache_wake_unused_cookie(cookie);
60908 kfree(op);
60909 nobufs:
60910 - fscache_stat(&fscache_n_retrievals_nobufs);
60911 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
60912 _leave(" = -ENOBUFS");
60913 return -ENOBUFS;
60914 }
60915 @@ -529,7 +529,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
60916
60917 _enter("%p,,%d,,,", cookie, *nr_pages);
60918
60919 - fscache_stat(&fscache_n_retrievals);
60920 + fscache_stat_unchecked(&fscache_n_retrievals);
60921
60922 if (hlist_empty(&cookie->backing_objects))
60923 goto nobufs;
60924 @@ -567,7 +567,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
60925 goto nobufs_unlock_dec;
60926 spin_unlock(&cookie->lock);
60927
60928 - fscache_stat(&fscache_n_retrieval_ops);
60929 + fscache_stat_unchecked(&fscache_n_retrieval_ops);
60930
60931 /* pin the netfs read context in case we need to do the actual netfs
60932 * read because we've encountered a cache read failure */
60933 @@ -598,15 +598,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
60934
60935 error:
60936 if (ret == -ENOMEM)
60937 - fscache_stat(&fscache_n_retrievals_nomem);
60938 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
60939 else if (ret == -ERESTARTSYS)
60940 - fscache_stat(&fscache_n_retrievals_intr);
60941 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
60942 else if (ret == -ENODATA)
60943 - fscache_stat(&fscache_n_retrievals_nodata);
60944 + fscache_stat_unchecked(&fscache_n_retrievals_nodata);
60945 else if (ret < 0)
60946 - fscache_stat(&fscache_n_retrievals_nobufs);
60947 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
60948 else
60949 - fscache_stat(&fscache_n_retrievals_ok);
60950 + fscache_stat_unchecked(&fscache_n_retrievals_ok);
60951
60952 fscache_put_retrieval(op);
60953 _leave(" = %d", ret);
60954 @@ -621,7 +621,7 @@ nobufs_unlock:
60955 if (wake_cookie)
60956 __fscache_wake_unused_cookie(cookie);
60957 nobufs:
60958 - fscache_stat(&fscache_n_retrievals_nobufs);
60959 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
60960 _leave(" = -ENOBUFS");
60961 return -ENOBUFS;
60962 }
60963 @@ -646,7 +646,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
60964
60965 _enter("%p,%p,,,", cookie, page);
60966
60967 - fscache_stat(&fscache_n_allocs);
60968 + fscache_stat_unchecked(&fscache_n_allocs);
60969
60970 if (hlist_empty(&cookie->backing_objects))
60971 goto nobufs;
60972 @@ -680,7 +680,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
60973 goto nobufs_unlock_dec;
60974 spin_unlock(&cookie->lock);
60975
60976 - fscache_stat(&fscache_n_alloc_ops);
60977 + fscache_stat_unchecked(&fscache_n_alloc_ops);
60978
60979 ret = fscache_wait_for_operation_activation(
60980 object, &op->op,
60981 @@ -697,11 +697,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
60982
60983 error:
60984 if (ret == -ERESTARTSYS)
60985 - fscache_stat(&fscache_n_allocs_intr);
60986 + fscache_stat_unchecked(&fscache_n_allocs_intr);
60987 else if (ret < 0)
60988 - fscache_stat(&fscache_n_allocs_nobufs);
60989 + fscache_stat_unchecked(&fscache_n_allocs_nobufs);
60990 else
60991 - fscache_stat(&fscache_n_allocs_ok);
60992 + fscache_stat_unchecked(&fscache_n_allocs_ok);
60993
60994 fscache_put_retrieval(op);
60995 _leave(" = %d", ret);
60996 @@ -715,7 +715,7 @@ nobufs_unlock:
60997 if (wake_cookie)
60998 __fscache_wake_unused_cookie(cookie);
60999 nobufs:
61000 - fscache_stat(&fscache_n_allocs_nobufs);
61001 + fscache_stat_unchecked(&fscache_n_allocs_nobufs);
61002 _leave(" = -ENOBUFS");
61003 return -ENOBUFS;
61004 }
61005 @@ -791,7 +791,7 @@ static void fscache_write_op(struct fscache_operation *_op)
61006
61007 spin_lock(&cookie->stores_lock);
61008
61009 - fscache_stat(&fscache_n_store_calls);
61010 + fscache_stat_unchecked(&fscache_n_store_calls);
61011
61012 /* find a page to store */
61013 page = NULL;
61014 @@ -802,7 +802,7 @@ static void fscache_write_op(struct fscache_operation *_op)
61015 page = results[0];
61016 _debug("gang %d [%lx]", n, page->index);
61017 if (page->index > op->store_limit) {
61018 - fscache_stat(&fscache_n_store_pages_over_limit);
61019 + fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
61020 goto superseded;
61021 }
61022
61023 @@ -814,7 +814,7 @@ static void fscache_write_op(struct fscache_operation *_op)
61024 spin_unlock(&cookie->stores_lock);
61025 spin_unlock(&object->lock);
61026
61027 - fscache_stat(&fscache_n_store_pages);
61028 + fscache_stat_unchecked(&fscache_n_store_pages);
61029 fscache_stat(&fscache_n_cop_write_page);
61030 ret = object->cache->ops->write_page(op, page);
61031 fscache_stat_d(&fscache_n_cop_write_page);
61032 @@ -918,7 +918,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
61033 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
61034 ASSERT(PageFsCache(page));
61035
61036 - fscache_stat(&fscache_n_stores);
61037 + fscache_stat_unchecked(&fscache_n_stores);
61038
61039 if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
61040 _leave(" = -ENOBUFS [invalidating]");
61041 @@ -977,7 +977,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
61042 spin_unlock(&cookie->stores_lock);
61043 spin_unlock(&object->lock);
61044
61045 - op->op.debug_id = atomic_inc_return(&fscache_op_debug_id);
61046 + op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
61047 op->store_limit = object->store_limit;
61048
61049 __fscache_use_cookie(cookie);
61050 @@ -986,8 +986,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
61051
61052 spin_unlock(&cookie->lock);
61053 radix_tree_preload_end();
61054 - fscache_stat(&fscache_n_store_ops);
61055 - fscache_stat(&fscache_n_stores_ok);
61056 + fscache_stat_unchecked(&fscache_n_store_ops);
61057 + fscache_stat_unchecked(&fscache_n_stores_ok);
61058
61059 /* the work queue now carries its own ref on the object */
61060 fscache_put_operation(&op->op);
61061 @@ -995,14 +995,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
61062 return 0;
61063
61064 already_queued:
61065 - fscache_stat(&fscache_n_stores_again);
61066 + fscache_stat_unchecked(&fscache_n_stores_again);
61067 already_pending:
61068 spin_unlock(&cookie->stores_lock);
61069 spin_unlock(&object->lock);
61070 spin_unlock(&cookie->lock);
61071 radix_tree_preload_end();
61072 kfree(op);
61073 - fscache_stat(&fscache_n_stores_ok);
61074 + fscache_stat_unchecked(&fscache_n_stores_ok);
61075 _leave(" = 0");
61076 return 0;
61077
61078 @@ -1024,14 +1024,14 @@ nobufs:
61079 kfree(op);
61080 if (wake_cookie)
61081 __fscache_wake_unused_cookie(cookie);
61082 - fscache_stat(&fscache_n_stores_nobufs);
61083 + fscache_stat_unchecked(&fscache_n_stores_nobufs);
61084 _leave(" = -ENOBUFS");
61085 return -ENOBUFS;
61086
61087 nomem_free:
61088 kfree(op);
61089 nomem:
61090 - fscache_stat(&fscache_n_stores_oom);
61091 + fscache_stat_unchecked(&fscache_n_stores_oom);
61092 _leave(" = -ENOMEM");
61093 return -ENOMEM;
61094 }
61095 @@ -1049,7 +1049,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
61096 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
61097 ASSERTCMP(page, !=, NULL);
61098
61099 - fscache_stat(&fscache_n_uncaches);
61100 + fscache_stat_unchecked(&fscache_n_uncaches);
61101
61102 /* cache withdrawal may beat us to it */
61103 if (!PageFsCache(page))
61104 @@ -1100,7 +1100,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
61105 struct fscache_cookie *cookie = op->op.object->cookie;
61106
61107 #ifdef CONFIG_FSCACHE_STATS
61108 - atomic_inc(&fscache_n_marks);
61109 + atomic_inc_unchecked(&fscache_n_marks);
61110 #endif
61111
61112 _debug("- mark %p{%lx}", page, page->index);
61113 diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
61114 index 40d13c7..ddf52b9 100644
61115 --- a/fs/fscache/stats.c
61116 +++ b/fs/fscache/stats.c
61117 @@ -18,99 +18,99 @@
61118 /*
61119 * operation counters
61120 */
61121 -atomic_t fscache_n_op_pend;
61122 -atomic_t fscache_n_op_run;
61123 -atomic_t fscache_n_op_enqueue;
61124 -atomic_t fscache_n_op_requeue;
61125 -atomic_t fscache_n_op_deferred_release;
61126 -atomic_t fscache_n_op_release;
61127 -atomic_t fscache_n_op_gc;
61128 -atomic_t fscache_n_op_cancelled;
61129 -atomic_t fscache_n_op_rejected;
61130 +atomic_unchecked_t fscache_n_op_pend;
61131 +atomic_unchecked_t fscache_n_op_run;
61132 +atomic_unchecked_t fscache_n_op_enqueue;
61133 +atomic_unchecked_t fscache_n_op_requeue;
61134 +atomic_unchecked_t fscache_n_op_deferred_release;
61135 +atomic_unchecked_t fscache_n_op_release;
61136 +atomic_unchecked_t fscache_n_op_gc;
61137 +atomic_unchecked_t fscache_n_op_cancelled;
61138 +atomic_unchecked_t fscache_n_op_rejected;
61139
61140 -atomic_t fscache_n_attr_changed;
61141 -atomic_t fscache_n_attr_changed_ok;
61142 -atomic_t fscache_n_attr_changed_nobufs;
61143 -atomic_t fscache_n_attr_changed_nomem;
61144 -atomic_t fscache_n_attr_changed_calls;
61145 +atomic_unchecked_t fscache_n_attr_changed;
61146 +atomic_unchecked_t fscache_n_attr_changed_ok;
61147 +atomic_unchecked_t fscache_n_attr_changed_nobufs;
61148 +atomic_unchecked_t fscache_n_attr_changed_nomem;
61149 +atomic_unchecked_t fscache_n_attr_changed_calls;
61150
61151 -atomic_t fscache_n_allocs;
61152 -atomic_t fscache_n_allocs_ok;
61153 -atomic_t fscache_n_allocs_wait;
61154 -atomic_t fscache_n_allocs_nobufs;
61155 -atomic_t fscache_n_allocs_intr;
61156 -atomic_t fscache_n_allocs_object_dead;
61157 -atomic_t fscache_n_alloc_ops;
61158 -atomic_t fscache_n_alloc_op_waits;
61159 +atomic_unchecked_t fscache_n_allocs;
61160 +atomic_unchecked_t fscache_n_allocs_ok;
61161 +atomic_unchecked_t fscache_n_allocs_wait;
61162 +atomic_unchecked_t fscache_n_allocs_nobufs;
61163 +atomic_unchecked_t fscache_n_allocs_intr;
61164 +atomic_unchecked_t fscache_n_allocs_object_dead;
61165 +atomic_unchecked_t fscache_n_alloc_ops;
61166 +atomic_unchecked_t fscache_n_alloc_op_waits;
61167
61168 -atomic_t fscache_n_retrievals;
61169 -atomic_t fscache_n_retrievals_ok;
61170 -atomic_t fscache_n_retrievals_wait;
61171 -atomic_t fscache_n_retrievals_nodata;
61172 -atomic_t fscache_n_retrievals_nobufs;
61173 -atomic_t fscache_n_retrievals_intr;
61174 -atomic_t fscache_n_retrievals_nomem;
61175 -atomic_t fscache_n_retrievals_object_dead;
61176 -atomic_t fscache_n_retrieval_ops;
61177 -atomic_t fscache_n_retrieval_op_waits;
61178 +atomic_unchecked_t fscache_n_retrievals;
61179 +atomic_unchecked_t fscache_n_retrievals_ok;
61180 +atomic_unchecked_t fscache_n_retrievals_wait;
61181 +atomic_unchecked_t fscache_n_retrievals_nodata;
61182 +atomic_unchecked_t fscache_n_retrievals_nobufs;
61183 +atomic_unchecked_t fscache_n_retrievals_intr;
61184 +atomic_unchecked_t fscache_n_retrievals_nomem;
61185 +atomic_unchecked_t fscache_n_retrievals_object_dead;
61186 +atomic_unchecked_t fscache_n_retrieval_ops;
61187 +atomic_unchecked_t fscache_n_retrieval_op_waits;
61188
61189 -atomic_t fscache_n_stores;
61190 -atomic_t fscache_n_stores_ok;
61191 -atomic_t fscache_n_stores_again;
61192 -atomic_t fscache_n_stores_nobufs;
61193 -atomic_t fscache_n_stores_oom;
61194 -atomic_t fscache_n_store_ops;
61195 -atomic_t fscache_n_store_calls;
61196 -atomic_t fscache_n_store_pages;
61197 -atomic_t fscache_n_store_radix_deletes;
61198 -atomic_t fscache_n_store_pages_over_limit;
61199 +atomic_unchecked_t fscache_n_stores;
61200 +atomic_unchecked_t fscache_n_stores_ok;
61201 +atomic_unchecked_t fscache_n_stores_again;
61202 +atomic_unchecked_t fscache_n_stores_nobufs;
61203 +atomic_unchecked_t fscache_n_stores_oom;
61204 +atomic_unchecked_t fscache_n_store_ops;
61205 +atomic_unchecked_t fscache_n_store_calls;
61206 +atomic_unchecked_t fscache_n_store_pages;
61207 +atomic_unchecked_t fscache_n_store_radix_deletes;
61208 +atomic_unchecked_t fscache_n_store_pages_over_limit;
61209
61210 -atomic_t fscache_n_store_vmscan_not_storing;
61211 -atomic_t fscache_n_store_vmscan_gone;
61212 -atomic_t fscache_n_store_vmscan_busy;
61213 -atomic_t fscache_n_store_vmscan_cancelled;
61214 -atomic_t fscache_n_store_vmscan_wait;
61215 +atomic_unchecked_t fscache_n_store_vmscan_not_storing;
61216 +atomic_unchecked_t fscache_n_store_vmscan_gone;
61217 +atomic_unchecked_t fscache_n_store_vmscan_busy;
61218 +atomic_unchecked_t fscache_n_store_vmscan_cancelled;
61219 +atomic_unchecked_t fscache_n_store_vmscan_wait;
61220
61221 -atomic_t fscache_n_marks;
61222 -atomic_t fscache_n_uncaches;
61223 +atomic_unchecked_t fscache_n_marks;
61224 +atomic_unchecked_t fscache_n_uncaches;
61225
61226 -atomic_t fscache_n_acquires;
61227 -atomic_t fscache_n_acquires_null;
61228 -atomic_t fscache_n_acquires_no_cache;
61229 -atomic_t fscache_n_acquires_ok;
61230 -atomic_t fscache_n_acquires_nobufs;
61231 -atomic_t fscache_n_acquires_oom;
61232 +atomic_unchecked_t fscache_n_acquires;
61233 +atomic_unchecked_t fscache_n_acquires_null;
61234 +atomic_unchecked_t fscache_n_acquires_no_cache;
61235 +atomic_unchecked_t fscache_n_acquires_ok;
61236 +atomic_unchecked_t fscache_n_acquires_nobufs;
61237 +atomic_unchecked_t fscache_n_acquires_oom;
61238
61239 -atomic_t fscache_n_invalidates;
61240 -atomic_t fscache_n_invalidates_run;
61241 +atomic_unchecked_t fscache_n_invalidates;
61242 +atomic_unchecked_t fscache_n_invalidates_run;
61243
61244 -atomic_t fscache_n_updates;
61245 -atomic_t fscache_n_updates_null;
61246 -atomic_t fscache_n_updates_run;
61247 +atomic_unchecked_t fscache_n_updates;
61248 +atomic_unchecked_t fscache_n_updates_null;
61249 +atomic_unchecked_t fscache_n_updates_run;
61250
61251 -atomic_t fscache_n_relinquishes;
61252 -atomic_t fscache_n_relinquishes_null;
61253 -atomic_t fscache_n_relinquishes_waitcrt;
61254 -atomic_t fscache_n_relinquishes_retire;
61255 +atomic_unchecked_t fscache_n_relinquishes;
61256 +atomic_unchecked_t fscache_n_relinquishes_null;
61257 +atomic_unchecked_t fscache_n_relinquishes_waitcrt;
61258 +atomic_unchecked_t fscache_n_relinquishes_retire;
61259
61260 -atomic_t fscache_n_cookie_index;
61261 -atomic_t fscache_n_cookie_data;
61262 -atomic_t fscache_n_cookie_special;
61263 +atomic_unchecked_t fscache_n_cookie_index;
61264 +atomic_unchecked_t fscache_n_cookie_data;
61265 +atomic_unchecked_t fscache_n_cookie_special;
61266
61267 -atomic_t fscache_n_object_alloc;
61268 -atomic_t fscache_n_object_no_alloc;
61269 -atomic_t fscache_n_object_lookups;
61270 -atomic_t fscache_n_object_lookups_negative;
61271 -atomic_t fscache_n_object_lookups_positive;
61272 -atomic_t fscache_n_object_lookups_timed_out;
61273 -atomic_t fscache_n_object_created;
61274 -atomic_t fscache_n_object_avail;
61275 -atomic_t fscache_n_object_dead;
61276 +atomic_unchecked_t fscache_n_object_alloc;
61277 +atomic_unchecked_t fscache_n_object_no_alloc;
61278 +atomic_unchecked_t fscache_n_object_lookups;
61279 +atomic_unchecked_t fscache_n_object_lookups_negative;
61280 +atomic_unchecked_t fscache_n_object_lookups_positive;
61281 +atomic_unchecked_t fscache_n_object_lookups_timed_out;
61282 +atomic_unchecked_t fscache_n_object_created;
61283 +atomic_unchecked_t fscache_n_object_avail;
61284 +atomic_unchecked_t fscache_n_object_dead;
61285
61286 -atomic_t fscache_n_checkaux_none;
61287 -atomic_t fscache_n_checkaux_okay;
61288 -atomic_t fscache_n_checkaux_update;
61289 -atomic_t fscache_n_checkaux_obsolete;
61290 +atomic_unchecked_t fscache_n_checkaux_none;
61291 +atomic_unchecked_t fscache_n_checkaux_okay;
61292 +atomic_unchecked_t fscache_n_checkaux_update;
61293 +atomic_unchecked_t fscache_n_checkaux_obsolete;
61294
61295 atomic_t fscache_n_cop_alloc_object;
61296 atomic_t fscache_n_cop_lookup_object;
61297 @@ -138,118 +138,118 @@ static int fscache_stats_show(struct seq_file *m, void *v)
61298 seq_puts(m, "FS-Cache statistics\n");
61299
61300 seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
61301 - atomic_read(&fscache_n_cookie_index),
61302 - atomic_read(&fscache_n_cookie_data),
61303 - atomic_read(&fscache_n_cookie_special));
61304 + atomic_read_unchecked(&fscache_n_cookie_index),
61305 + atomic_read_unchecked(&fscache_n_cookie_data),
61306 + atomic_read_unchecked(&fscache_n_cookie_special));
61307
61308 seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
61309 - atomic_read(&fscache_n_object_alloc),
61310 - atomic_read(&fscache_n_object_no_alloc),
61311 - atomic_read(&fscache_n_object_avail),
61312 - atomic_read(&fscache_n_object_dead));
61313 + atomic_read_unchecked(&fscache_n_object_alloc),
61314 + atomic_read_unchecked(&fscache_n_object_no_alloc),
61315 + atomic_read_unchecked(&fscache_n_object_avail),
61316 + atomic_read_unchecked(&fscache_n_object_dead));
61317 seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
61318 - atomic_read(&fscache_n_checkaux_none),
61319 - atomic_read(&fscache_n_checkaux_okay),
61320 - atomic_read(&fscache_n_checkaux_update),
61321 - atomic_read(&fscache_n_checkaux_obsolete));
61322 + atomic_read_unchecked(&fscache_n_checkaux_none),
61323 + atomic_read_unchecked(&fscache_n_checkaux_okay),
61324 + atomic_read_unchecked(&fscache_n_checkaux_update),
61325 + atomic_read_unchecked(&fscache_n_checkaux_obsolete));
61326
61327 seq_printf(m, "Pages : mrk=%u unc=%u\n",
61328 - atomic_read(&fscache_n_marks),
61329 - atomic_read(&fscache_n_uncaches));
61330 + atomic_read_unchecked(&fscache_n_marks),
61331 + atomic_read_unchecked(&fscache_n_uncaches));
61332
61333 seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
61334 " oom=%u\n",
61335 - atomic_read(&fscache_n_acquires),
61336 - atomic_read(&fscache_n_acquires_null),
61337 - atomic_read(&fscache_n_acquires_no_cache),
61338 - atomic_read(&fscache_n_acquires_ok),
61339 - atomic_read(&fscache_n_acquires_nobufs),
61340 - atomic_read(&fscache_n_acquires_oom));
61341 + atomic_read_unchecked(&fscache_n_acquires),
61342 + atomic_read_unchecked(&fscache_n_acquires_null),
61343 + atomic_read_unchecked(&fscache_n_acquires_no_cache),
61344 + atomic_read_unchecked(&fscache_n_acquires_ok),
61345 + atomic_read_unchecked(&fscache_n_acquires_nobufs),
61346 + atomic_read_unchecked(&fscache_n_acquires_oom));
61347
61348 seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
61349 - atomic_read(&fscache_n_object_lookups),
61350 - atomic_read(&fscache_n_object_lookups_negative),
61351 - atomic_read(&fscache_n_object_lookups_positive),
61352 - atomic_read(&fscache_n_object_created),
61353 - atomic_read(&fscache_n_object_lookups_timed_out));
61354 + atomic_read_unchecked(&fscache_n_object_lookups),
61355 + atomic_read_unchecked(&fscache_n_object_lookups_negative),
61356 + atomic_read_unchecked(&fscache_n_object_lookups_positive),
61357 + atomic_read_unchecked(&fscache_n_object_created),
61358 + atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
61359
61360 seq_printf(m, "Invals : n=%u run=%u\n",
61361 - atomic_read(&fscache_n_invalidates),
61362 - atomic_read(&fscache_n_invalidates_run));
61363 + atomic_read_unchecked(&fscache_n_invalidates),
61364 + atomic_read_unchecked(&fscache_n_invalidates_run));
61365
61366 seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
61367 - atomic_read(&fscache_n_updates),
61368 - atomic_read(&fscache_n_updates_null),
61369 - atomic_read(&fscache_n_updates_run));
61370 + atomic_read_unchecked(&fscache_n_updates),
61371 + atomic_read_unchecked(&fscache_n_updates_null),
61372 + atomic_read_unchecked(&fscache_n_updates_run));
61373
61374 seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
61375 - atomic_read(&fscache_n_relinquishes),
61376 - atomic_read(&fscache_n_relinquishes_null),
61377 - atomic_read(&fscache_n_relinquishes_waitcrt),
61378 - atomic_read(&fscache_n_relinquishes_retire));
61379 + atomic_read_unchecked(&fscache_n_relinquishes),
61380 + atomic_read_unchecked(&fscache_n_relinquishes_null),
61381 + atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
61382 + atomic_read_unchecked(&fscache_n_relinquishes_retire));
61383
61384 seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
61385 - atomic_read(&fscache_n_attr_changed),
61386 - atomic_read(&fscache_n_attr_changed_ok),
61387 - atomic_read(&fscache_n_attr_changed_nobufs),
61388 - atomic_read(&fscache_n_attr_changed_nomem),
61389 - atomic_read(&fscache_n_attr_changed_calls));
61390 + atomic_read_unchecked(&fscache_n_attr_changed),
61391 + atomic_read_unchecked(&fscache_n_attr_changed_ok),
61392 + atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
61393 + atomic_read_unchecked(&fscache_n_attr_changed_nomem),
61394 + atomic_read_unchecked(&fscache_n_attr_changed_calls));
61395
61396 seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
61397 - atomic_read(&fscache_n_allocs),
61398 - atomic_read(&fscache_n_allocs_ok),
61399 - atomic_read(&fscache_n_allocs_wait),
61400 - atomic_read(&fscache_n_allocs_nobufs),
61401 - atomic_read(&fscache_n_allocs_intr));
61402 + atomic_read_unchecked(&fscache_n_allocs),
61403 + atomic_read_unchecked(&fscache_n_allocs_ok),
61404 + atomic_read_unchecked(&fscache_n_allocs_wait),
61405 + atomic_read_unchecked(&fscache_n_allocs_nobufs),
61406 + atomic_read_unchecked(&fscache_n_allocs_intr));
61407 seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
61408 - atomic_read(&fscache_n_alloc_ops),
61409 - atomic_read(&fscache_n_alloc_op_waits),
61410 - atomic_read(&fscache_n_allocs_object_dead));
61411 + atomic_read_unchecked(&fscache_n_alloc_ops),
61412 + atomic_read_unchecked(&fscache_n_alloc_op_waits),
61413 + atomic_read_unchecked(&fscache_n_allocs_object_dead));
61414
61415 seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
61416 " int=%u oom=%u\n",
61417 - atomic_read(&fscache_n_retrievals),
61418 - atomic_read(&fscache_n_retrievals_ok),
61419 - atomic_read(&fscache_n_retrievals_wait),
61420 - atomic_read(&fscache_n_retrievals_nodata),
61421 - atomic_read(&fscache_n_retrievals_nobufs),
61422 - atomic_read(&fscache_n_retrievals_intr),
61423 - atomic_read(&fscache_n_retrievals_nomem));
61424 + atomic_read_unchecked(&fscache_n_retrievals),
61425 + atomic_read_unchecked(&fscache_n_retrievals_ok),
61426 + atomic_read_unchecked(&fscache_n_retrievals_wait),
61427 + atomic_read_unchecked(&fscache_n_retrievals_nodata),
61428 + atomic_read_unchecked(&fscache_n_retrievals_nobufs),
61429 + atomic_read_unchecked(&fscache_n_retrievals_intr),
61430 + atomic_read_unchecked(&fscache_n_retrievals_nomem));
61431 seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
61432 - atomic_read(&fscache_n_retrieval_ops),
61433 - atomic_read(&fscache_n_retrieval_op_waits),
61434 - atomic_read(&fscache_n_retrievals_object_dead));
61435 + atomic_read_unchecked(&fscache_n_retrieval_ops),
61436 + atomic_read_unchecked(&fscache_n_retrieval_op_waits),
61437 + atomic_read_unchecked(&fscache_n_retrievals_object_dead));
61438
61439 seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
61440 - atomic_read(&fscache_n_stores),
61441 - atomic_read(&fscache_n_stores_ok),
61442 - atomic_read(&fscache_n_stores_again),
61443 - atomic_read(&fscache_n_stores_nobufs),
61444 - atomic_read(&fscache_n_stores_oom));
61445 + atomic_read_unchecked(&fscache_n_stores),
61446 + atomic_read_unchecked(&fscache_n_stores_ok),
61447 + atomic_read_unchecked(&fscache_n_stores_again),
61448 + atomic_read_unchecked(&fscache_n_stores_nobufs),
61449 + atomic_read_unchecked(&fscache_n_stores_oom));
61450 seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
61451 - atomic_read(&fscache_n_store_ops),
61452 - atomic_read(&fscache_n_store_calls),
61453 - atomic_read(&fscache_n_store_pages),
61454 - atomic_read(&fscache_n_store_radix_deletes),
61455 - atomic_read(&fscache_n_store_pages_over_limit));
61456 + atomic_read_unchecked(&fscache_n_store_ops),
61457 + atomic_read_unchecked(&fscache_n_store_calls),
61458 + atomic_read_unchecked(&fscache_n_store_pages),
61459 + atomic_read_unchecked(&fscache_n_store_radix_deletes),
61460 + atomic_read_unchecked(&fscache_n_store_pages_over_limit));
61461
61462 seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
61463 - atomic_read(&fscache_n_store_vmscan_not_storing),
61464 - atomic_read(&fscache_n_store_vmscan_gone),
61465 - atomic_read(&fscache_n_store_vmscan_busy),
61466 - atomic_read(&fscache_n_store_vmscan_cancelled),
61467 - atomic_read(&fscache_n_store_vmscan_wait));
61468 + atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
61469 + atomic_read_unchecked(&fscache_n_store_vmscan_gone),
61470 + atomic_read_unchecked(&fscache_n_store_vmscan_busy),
61471 + atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
61472 + atomic_read_unchecked(&fscache_n_store_vmscan_wait));
61473
61474 seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n",
61475 - atomic_read(&fscache_n_op_pend),
61476 - atomic_read(&fscache_n_op_run),
61477 - atomic_read(&fscache_n_op_enqueue),
61478 - atomic_read(&fscache_n_op_cancelled),
61479 - atomic_read(&fscache_n_op_rejected));
61480 + atomic_read_unchecked(&fscache_n_op_pend),
61481 + atomic_read_unchecked(&fscache_n_op_run),
61482 + atomic_read_unchecked(&fscache_n_op_enqueue),
61483 + atomic_read_unchecked(&fscache_n_op_cancelled),
61484 + atomic_read_unchecked(&fscache_n_op_rejected));
61485 seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n",
61486 - atomic_read(&fscache_n_op_deferred_release),
61487 - atomic_read(&fscache_n_op_release),
61488 - atomic_read(&fscache_n_op_gc));
61489 + atomic_read_unchecked(&fscache_n_op_deferred_release),
61490 + atomic_read_unchecked(&fscache_n_op_release),
61491 + atomic_read_unchecked(&fscache_n_op_gc));
61492
61493 seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
61494 atomic_read(&fscache_n_cop_alloc_object),
61495 diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
61496 index 13b691a..1ffca5ae 100644
61497 --- a/fs/fuse/cuse.c
61498 +++ b/fs/fuse/cuse.c
61499 @@ -607,10 +607,12 @@ static int __init cuse_init(void)
61500 INIT_LIST_HEAD(&cuse_conntbl[i]);
61501
61502 /* inherit and extend fuse_dev_operations */
61503 - cuse_channel_fops = fuse_dev_operations;
61504 - cuse_channel_fops.owner = THIS_MODULE;
61505 - cuse_channel_fops.open = cuse_channel_open;
61506 - cuse_channel_fops.release = cuse_channel_release;
61507 + pax_open_kernel();
61508 + memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
61509 + *(void **)&cuse_channel_fops.owner = THIS_MODULE;
61510 + *(void **)&cuse_channel_fops.open = cuse_channel_open;
61511 + *(void **)&cuse_channel_fops.release = cuse_channel_release;
61512 + pax_close_kernel();
61513
61514 cuse_class = class_create(THIS_MODULE, "cuse");
61515 if (IS_ERR(cuse_class))
61516 diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
61517 index aac71ce..fcd6a1b 100644
61518 --- a/fs/fuse/dev.c
61519 +++ b/fs/fuse/dev.c
61520 @@ -1323,7 +1323,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
61521 ret = 0;
61522 pipe_lock(pipe);
61523
61524 - if (!pipe->readers) {
61525 + if (!atomic_read(&pipe->readers)) {
61526 send_sig(SIGPIPE, current, 0);
61527 if (!ret)
61528 ret = -EPIPE;
61529 @@ -1352,7 +1352,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
61530 page_nr++;
61531 ret += buf->len;
61532
61533 - if (pipe->files)
61534 + if (atomic_read(&pipe->files))
61535 do_wakeup = 1;
61536 }
61537
61538 diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
61539 index 4219835..3473b7e 100644
61540 --- a/fs/fuse/dir.c
61541 +++ b/fs/fuse/dir.c
61542 @@ -1478,7 +1478,7 @@ static char *read_link(struct dentry *dentry)
61543 return link;
61544 }
61545
61546 -static void free_link(char *link)
61547 +static void free_link(const char *link)
61548 {
61549 if (!IS_ERR(link))
61550 free_page((unsigned long) link);
61551 diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
61552 index 9c470fd..aae410e 100644
61553 --- a/fs/hostfs/hostfs_kern.c
61554 +++ b/fs/hostfs/hostfs_kern.c
61555 @@ -898,7 +898,7 @@ static void *hostfs_follow_link(struct dentry *dentry, struct nameidata *nd)
61556
61557 static void hostfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
61558 {
61559 - char *s = nd_get_link(nd);
61560 + const char *s = nd_get_link(nd);
61561 if (!IS_ERR(s))
61562 __putname(s);
61563 }
61564 diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
61565 index e19d4c0..8a357a9 100644
61566 --- a/fs/hugetlbfs/inode.c
61567 +++ b/fs/hugetlbfs/inode.c
61568 @@ -152,6 +152,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
61569 struct mm_struct *mm = current->mm;
61570 struct vm_area_struct *vma;
61571 struct hstate *h = hstate_file(file);
61572 + unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
61573 struct vm_unmapped_area_info info;
61574
61575 if (len & ~huge_page_mask(h))
61576 @@ -165,17 +166,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
61577 return addr;
61578 }
61579
61580 +#ifdef CONFIG_PAX_RANDMMAP
61581 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
61582 +#endif
61583 +
61584 if (addr) {
61585 addr = ALIGN(addr, huge_page_size(h));
61586 vma = find_vma(mm, addr);
61587 - if (TASK_SIZE - len >= addr &&
61588 - (!vma || addr + len <= vma->vm_start))
61589 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
61590 return addr;
61591 }
61592
61593 info.flags = 0;
61594 info.length = len;
61595 info.low_limit = TASK_UNMAPPED_BASE;
61596 +
61597 +#ifdef CONFIG_PAX_RANDMMAP
61598 + if (mm->pax_flags & MF_PAX_RANDMMAP)
61599 + info.low_limit += mm->delta_mmap;
61600 +#endif
61601 +
61602 info.high_limit = TASK_SIZE;
61603 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
61604 info.align_offset = 0;
61605 @@ -921,7 +931,7 @@ static struct file_system_type hugetlbfs_fs_type = {
61606 };
61607 MODULE_ALIAS_FS("hugetlbfs");
61608
61609 -static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
61610 +struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
61611
61612 static int can_do_hugetlb_shm(void)
61613 {
61614 diff --git a/fs/inode.c b/fs/inode.c
61615 index d2fb2f2..a6444b0 100644
61616 --- a/fs/inode.c
61617 +++ b/fs/inode.c
61618 @@ -839,16 +839,20 @@ unsigned int get_next_ino(void)
61619 unsigned int *p = &get_cpu_var(last_ino);
61620 unsigned int res = *p;
61621
61622 +start:
61623 +
61624 #ifdef CONFIG_SMP
61625 if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
61626 - static atomic_t shared_last_ino;
61627 - int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
61628 + static atomic_unchecked_t shared_last_ino;
61629 + int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
61630
61631 res = next - LAST_INO_BATCH;
61632 }
61633 #endif
61634
61635 - *p = ++res;
61636 + if (unlikely(!++res))
61637 + goto start; /* never zero */
61638 + *p = res;
61639 put_cpu_var(last_ino);
61640 return res;
61641 }
61642 diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
61643 index 4a6cf28..d3a29d3 100644
61644 --- a/fs/jffs2/erase.c
61645 +++ b/fs/jffs2/erase.c
61646 @@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
61647 struct jffs2_unknown_node marker = {
61648 .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
61649 .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
61650 - .totlen = cpu_to_je32(c->cleanmarker_size)
61651 + .totlen = cpu_to_je32(c->cleanmarker_size),
61652 + .hdr_crc = cpu_to_je32(0)
61653 };
61654
61655 jffs2_prealloc_raw_node_refs(c, jeb, 1);
61656 diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
61657 index a6597d6..41b30ec 100644
61658 --- a/fs/jffs2/wbuf.c
61659 +++ b/fs/jffs2/wbuf.c
61660 @@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
61661 {
61662 .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
61663 .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
61664 - .totlen = constant_cpu_to_je32(8)
61665 + .totlen = constant_cpu_to_je32(8),
61666 + .hdr_crc = constant_cpu_to_je32(0)
61667 };
61668
61669 /*
61670 diff --git a/fs/jfs/super.c b/fs/jfs/super.c
61671 index 97f7fda..09bd33d 100644
61672 --- a/fs/jfs/super.c
61673 +++ b/fs/jfs/super.c
61674 @@ -885,7 +885,7 @@ static int __init init_jfs_fs(void)
61675
61676 jfs_inode_cachep =
61677 kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
61678 - SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
61679 + SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
61680 init_once);
61681 if (jfs_inode_cachep == NULL)
61682 return -ENOMEM;
61683 diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
61684 index ac127cd..d8079db 100644
61685 --- a/fs/kernfs/dir.c
61686 +++ b/fs/kernfs/dir.c
61687 @@ -182,7 +182,7 @@ struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn)
61688 *
61689 * Returns 31 bit hash of ns + name (so it fits in an off_t )
61690 */
61691 -static unsigned int kernfs_name_hash(const char *name, const void *ns)
61692 +static unsigned int kernfs_name_hash(const unsigned char *name, const void *ns)
61693 {
61694 unsigned long hash = init_name_hash();
61695 unsigned int len = strlen(name);
61696 diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
61697 index 5e9a80c..3853a24 100644
61698 --- a/fs/kernfs/file.c
61699 +++ b/fs/kernfs/file.c
61700 @@ -33,7 +33,7 @@ static DEFINE_MUTEX(kernfs_open_file_mutex);
61701
61702 struct kernfs_open_node {
61703 atomic_t refcnt;
61704 - atomic_t event;
61705 + atomic_unchecked_t event;
61706 wait_queue_head_t poll;
61707 struct list_head files; /* goes through kernfs_open_file.list */
61708 };
61709 @@ -149,7 +149,7 @@ static int kernfs_seq_show(struct seq_file *sf, void *v)
61710 {
61711 struct kernfs_open_file *of = sf->private;
61712
61713 - of->event = atomic_read(&of->kn->attr.open->event);
61714 + of->event = atomic_read_unchecked(&of->kn->attr.open->event);
61715
61716 return of->kn->attr.ops->seq_show(sf, v);
61717 }
61718 @@ -361,12 +361,12 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
61719 return ret;
61720 }
61721
61722 -static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
61723 - void *buf, int len, int write)
61724 +static ssize_t kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
61725 + void *buf, size_t len, int write)
61726 {
61727 struct file *file = vma->vm_file;
61728 struct kernfs_open_file *of = kernfs_of(file);
61729 - int ret;
61730 + ssize_t ret;
61731
61732 if (!of->vm_ops)
61733 return -EINVAL;
61734 @@ -567,7 +567,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
61735 return -ENOMEM;
61736
61737 atomic_set(&new_on->refcnt, 0);
61738 - atomic_set(&new_on->event, 1);
61739 + atomic_set_unchecked(&new_on->event, 1);
61740 init_waitqueue_head(&new_on->poll);
61741 INIT_LIST_HEAD(&new_on->files);
61742 goto retry;
61743 @@ -773,7 +773,7 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
61744
61745 kernfs_put_active(kn);
61746
61747 - if (of->event != atomic_read(&on->event))
61748 + if (of->event != atomic_read_unchecked(&on->event))
61749 goto trigger;
61750
61751 return DEFAULT_POLLMASK;
61752 @@ -798,7 +798,7 @@ void kernfs_notify(struct kernfs_node *kn)
61753 if (!WARN_ON(kernfs_type(kn) != KERNFS_FILE)) {
61754 on = kn->attr.open;
61755 if (on) {
61756 - atomic_inc(&on->event);
61757 + atomic_inc_unchecked(&on->event);
61758 wake_up_interruptible(&on->poll);
61759 }
61760 }
61761 diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
61762 index 8a19889..4c3069a 100644
61763 --- a/fs/kernfs/symlink.c
61764 +++ b/fs/kernfs/symlink.c
61765 @@ -128,7 +128,7 @@ static void *kernfs_iop_follow_link(struct dentry *dentry, struct nameidata *nd)
61766 static void kernfs_iop_put_link(struct dentry *dentry, struct nameidata *nd,
61767 void *cookie)
61768 {
61769 - char *page = nd_get_link(nd);
61770 + const char *page = nd_get_link(nd);
61771 if (!IS_ERR(page))
61772 free_page((unsigned long)page);
61773 }
61774 diff --git a/fs/libfs.c b/fs/libfs.c
61775 index a184424..944ddce 100644
61776 --- a/fs/libfs.c
61777 +++ b/fs/libfs.c
61778 @@ -159,6 +159,9 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
61779
61780 for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
61781 struct dentry *next = list_entry(p, struct dentry, d_u.d_child);
61782 + char d_name[sizeof(next->d_iname)];
61783 + const unsigned char *name;
61784 +
61785 spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
61786 if (!simple_positive(next)) {
61787 spin_unlock(&next->d_lock);
61788 @@ -167,7 +170,12 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
61789
61790 spin_unlock(&next->d_lock);
61791 spin_unlock(&dentry->d_lock);
61792 - if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
61793 + name = next->d_name.name;
61794 + if (name == next->d_iname) {
61795 + memcpy(d_name, name, next->d_name.len);
61796 + name = d_name;
61797 + }
61798 + if (!dir_emit(ctx, name, next->d_name.len,
61799 next->d_inode->i_ino, dt_type(next->d_inode)))
61800 return 0;
61801 spin_lock(&dentry->d_lock);
61802 @@ -999,7 +1007,7 @@ EXPORT_SYMBOL(noop_fsync);
61803 void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
61804 void *cookie)
61805 {
61806 - char *s = nd_get_link(nd);
61807 + const char *s = nd_get_link(nd);
61808 if (!IS_ERR(s))
61809 kfree(s);
61810 }
61811 diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
61812 index acd3947..1f896e2 100644
61813 --- a/fs/lockd/clntproc.c
61814 +++ b/fs/lockd/clntproc.c
61815 @@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
61816 /*
61817 * Cookie counter for NLM requests
61818 */
61819 -static atomic_t nlm_cookie = ATOMIC_INIT(0x1234);
61820 +static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234);
61821
61822 void nlmclnt_next_cookie(struct nlm_cookie *c)
61823 {
61824 - u32 cookie = atomic_inc_return(&nlm_cookie);
61825 + u32 cookie = atomic_inc_return_unchecked(&nlm_cookie);
61826
61827 memcpy(c->data, &cookie, 4);
61828 c->len=4;
61829 diff --git a/fs/locks.c b/fs/locks.c
61830 index e390bd9..c79870e 100644
61831 --- a/fs/locks.c
61832 +++ b/fs/locks.c
61833 @@ -2315,16 +2315,16 @@ void locks_remove_file(struct file *filp)
61834 locks_remove_posix(filp, (fl_owner_t)filp);
61835
61836 if (filp->f_op->flock) {
61837 - struct file_lock fl = {
61838 + struct file_lock flock = {
61839 .fl_pid = current->tgid,
61840 .fl_file = filp,
61841 .fl_flags = FL_FLOCK,
61842 .fl_type = F_UNLCK,
61843 .fl_end = OFFSET_MAX,
61844 };
61845 - filp->f_op->flock(filp, F_SETLKW, &fl);
61846 - if (fl.fl_ops && fl.fl_ops->fl_release_private)
61847 - fl.fl_ops->fl_release_private(&fl);
61848 + filp->f_op->flock(filp, F_SETLKW, &flock);
61849 + if (flock.fl_ops && flock.fl_ops->fl_release_private)
61850 + flock.fl_ops->fl_release_private(&flock);
61851 }
61852
61853 spin_lock(&inode->i_lock);
61854 diff --git a/fs/mount.h b/fs/mount.h
61855 index d55297f..f5b28c5 100644
61856 --- a/fs/mount.h
61857 +++ b/fs/mount.h
61858 @@ -11,7 +11,7 @@ struct mnt_namespace {
61859 u64 seq; /* Sequence number to prevent loops */
61860 wait_queue_head_t poll;
61861 u64 event;
61862 -};
61863 +} __randomize_layout;
61864
61865 struct mnt_pcp {
61866 int mnt_count;
61867 @@ -57,7 +57,7 @@ struct mount {
61868 int mnt_expiry_mark; /* true if marked for expiry */
61869 int mnt_pinned;
61870 struct path mnt_ex_mountpoint;
61871 -};
61872 +} __randomize_layout;
61873
61874 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
61875
61876 diff --git a/fs/namei.c b/fs/namei.c
61877 index 985c6f3..f67a0f8 100644
61878 --- a/fs/namei.c
61879 +++ b/fs/namei.c
61880 @@ -330,17 +330,32 @@ int generic_permission(struct inode *inode, int mask)
61881 if (ret != -EACCES)
61882 return ret;
61883
61884 +#ifdef CONFIG_GRKERNSEC
61885 + /* we'll block if we have to log due to a denied capability use */
61886 + if (mask & MAY_NOT_BLOCK)
61887 + return -ECHILD;
61888 +#endif
61889 +
61890 if (S_ISDIR(inode->i_mode)) {
61891 /* DACs are overridable for directories */
61892 - if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
61893 - return 0;
61894 if (!(mask & MAY_WRITE))
61895 - if (capable_wrt_inode_uidgid(inode,
61896 - CAP_DAC_READ_SEARCH))
61897 + if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
61898 + capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
61899 return 0;
61900 + if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
61901 + return 0;
61902 return -EACCES;
61903 }
61904 /*
61905 + * Searching includes executable on directories, else just read.
61906 + */
61907 + mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
61908 + if (mask == MAY_READ)
61909 + if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
61910 + capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
61911 + return 0;
61912 +
61913 + /*
61914 * Read/write DACs are always overridable.
61915 * Executable DACs are overridable when there is
61916 * at least one exec bit set.
61917 @@ -349,14 +364,6 @@ int generic_permission(struct inode *inode, int mask)
61918 if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
61919 return 0;
61920
61921 - /*
61922 - * Searching includes executable on directories, else just read.
61923 - */
61924 - mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
61925 - if (mask == MAY_READ)
61926 - if (capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
61927 - return 0;
61928 -
61929 return -EACCES;
61930 }
61931 EXPORT_SYMBOL(generic_permission);
61932 @@ -824,7 +831,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
61933 {
61934 struct dentry *dentry = link->dentry;
61935 int error;
61936 - char *s;
61937 + const char *s;
61938
61939 BUG_ON(nd->flags & LOOKUP_RCU);
61940
61941 @@ -845,6 +852,12 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
61942 if (error)
61943 goto out_put_nd_path;
61944
61945 + if (gr_handle_follow_link(dentry->d_parent->d_inode,
61946 + dentry->d_inode, dentry, nd->path.mnt)) {
61947 + error = -EACCES;
61948 + goto out_put_nd_path;
61949 + }
61950 +
61951 nd->last_type = LAST_BIND;
61952 *p = dentry->d_inode->i_op->follow_link(dentry, nd);
61953 error = PTR_ERR(*p);
61954 @@ -1596,6 +1609,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
61955 if (res)
61956 break;
61957 res = walk_component(nd, path, LOOKUP_FOLLOW);
61958 + if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
61959 + res = -EACCES;
61960 put_link(nd, &link, cookie);
61961 } while (res > 0);
61962
61963 @@ -1669,7 +1684,7 @@ EXPORT_SYMBOL(full_name_hash);
61964 static inline unsigned long hash_name(const char *name, unsigned int *hashp)
61965 {
61966 unsigned long a, b, adata, bdata, mask, hash, len;
61967 - const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
61968 + static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
61969
61970 hash = a = 0;
61971 len = -sizeof(unsigned long);
61972 @@ -1953,6 +1968,8 @@ static int path_lookupat(int dfd, const char *name,
61973 if (err)
61974 break;
61975 err = lookup_last(nd, &path);
61976 + if (!err && gr_handle_symlink_owner(&link, nd->inode))
61977 + err = -EACCES;
61978 put_link(nd, &link, cookie);
61979 }
61980 }
61981 @@ -1960,6 +1977,13 @@ static int path_lookupat(int dfd, const char *name,
61982 if (!err)
61983 err = complete_walk(nd);
61984
61985 + if (!err && !(nd->flags & LOOKUP_PARENT)) {
61986 + if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
61987 + path_put(&nd->path);
61988 + err = -ENOENT;
61989 + }
61990 + }
61991 +
61992 if (!err && nd->flags & LOOKUP_DIRECTORY) {
61993 if (!d_can_lookup(nd->path.dentry)) {
61994 path_put(&nd->path);
61995 @@ -1987,8 +2011,15 @@ static int filename_lookup(int dfd, struct filename *name,
61996 retval = path_lookupat(dfd, name->name,
61997 flags | LOOKUP_REVAL, nd);
61998
61999 - if (likely(!retval))
62000 + if (likely(!retval)) {
62001 audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT);
62002 + if (name->name[0] != '/' && nd->path.dentry && nd->inode) {
62003 + if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) {
62004 + path_put(&nd->path);
62005 + return -ENOENT;
62006 + }
62007 + }
62008 + }
62009 return retval;
62010 }
62011
62012 @@ -2569,6 +2600,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
62013 if (flag & O_NOATIME && !inode_owner_or_capable(inode))
62014 return -EPERM;
62015
62016 + if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
62017 + return -EPERM;
62018 + if (gr_handle_rawio(inode))
62019 + return -EPERM;
62020 + if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
62021 + return -EACCES;
62022 +
62023 return 0;
62024 }
62025
62026 @@ -2800,7 +2838,7 @@ looked_up:
62027 * cleared otherwise prior to returning.
62028 */
62029 static int lookup_open(struct nameidata *nd, struct path *path,
62030 - struct file *file,
62031 + struct path *link, struct file *file,
62032 const struct open_flags *op,
62033 bool got_write, int *opened)
62034 {
62035 @@ -2835,6 +2873,17 @@ static int lookup_open(struct nameidata *nd, struct path *path,
62036 /* Negative dentry, just create the file */
62037 if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
62038 umode_t mode = op->mode;
62039 +
62040 + if (link && gr_handle_symlink_owner(link, dir->d_inode)) {
62041 + error = -EACCES;
62042 + goto out_dput;
62043 + }
62044 +
62045 + if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
62046 + error = -EACCES;
62047 + goto out_dput;
62048 + }
62049 +
62050 if (!IS_POSIXACL(dir->d_inode))
62051 mode &= ~current_umask();
62052 /*
62053 @@ -2856,6 +2905,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
62054 nd->flags & LOOKUP_EXCL);
62055 if (error)
62056 goto out_dput;
62057 + else
62058 + gr_handle_create(dentry, nd->path.mnt);
62059 }
62060 out_no_open:
62061 path->dentry = dentry;
62062 @@ -2870,7 +2921,7 @@ out_dput:
62063 /*
62064 * Handle the last step of open()
62065 */
62066 -static int do_last(struct nameidata *nd, struct path *path,
62067 +static int do_last(struct nameidata *nd, struct path *path, struct path *link,
62068 struct file *file, const struct open_flags *op,
62069 int *opened, struct filename *name)
62070 {
62071 @@ -2920,6 +2971,15 @@ static int do_last(struct nameidata *nd, struct path *path,
62072 if (error)
62073 return error;
62074
62075 + if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
62076 + error = -ENOENT;
62077 + goto out;
62078 + }
62079 + if (link && gr_handle_symlink_owner(link, nd->inode)) {
62080 + error = -EACCES;
62081 + goto out;
62082 + }
62083 +
62084 audit_inode(name, dir, LOOKUP_PARENT);
62085 error = -EISDIR;
62086 /* trailing slashes? */
62087 @@ -2939,7 +2999,7 @@ retry_lookup:
62088 */
62089 }
62090 mutex_lock(&dir->d_inode->i_mutex);
62091 - error = lookup_open(nd, path, file, op, got_write, opened);
62092 + error = lookup_open(nd, path, link, file, op, got_write, opened);
62093 mutex_unlock(&dir->d_inode->i_mutex);
62094
62095 if (error <= 0) {
62096 @@ -2963,11 +3023,28 @@ retry_lookup:
62097 goto finish_open_created;
62098 }
62099
62100 + if (!gr_acl_handle_hidden_file(path->dentry, nd->path.mnt)) {
62101 + error = -ENOENT;
62102 + goto exit_dput;
62103 + }
62104 + if (link && gr_handle_symlink_owner(link, path->dentry->d_inode)) {
62105 + error = -EACCES;
62106 + goto exit_dput;
62107 + }
62108 +
62109 /*
62110 * create/update audit record if it already exists.
62111 */
62112 - if (d_is_positive(path->dentry))
62113 + if (d_is_positive(path->dentry)) {
62114 + /* only check if O_CREAT is specified, all other checks need to go
62115 + into may_open */
62116 + if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
62117 + error = -EACCES;
62118 + goto exit_dput;
62119 + }
62120 +
62121 audit_inode(name, path->dentry, 0);
62122 + }
62123
62124 /*
62125 * If atomic_open() acquired write access it is dropped now due to
62126 @@ -3008,6 +3085,11 @@ finish_lookup:
62127 }
62128 }
62129 BUG_ON(inode != path->dentry->d_inode);
62130 + /* if we're resolving a symlink to another symlink */
62131 + if (link && gr_handle_symlink_owner(link, inode)) {
62132 + error = -EACCES;
62133 + goto out;
62134 + }
62135 return 1;
62136 }
62137
62138 @@ -3017,7 +3099,6 @@ finish_lookup:
62139 save_parent.dentry = nd->path.dentry;
62140 save_parent.mnt = mntget(path->mnt);
62141 nd->path.dentry = path->dentry;
62142 -
62143 }
62144 nd->inode = inode;
62145 /* Why this, you ask? _Now_ we might have grown LOOKUP_JUMPED... */
62146 @@ -3027,7 +3108,18 @@ finish_open:
62147 path_put(&save_parent);
62148 return error;
62149 }
62150 +
62151 + if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
62152 + error = -ENOENT;
62153 + goto out;
62154 + }
62155 + if (link && gr_handle_symlink_owner(link, nd->inode)) {
62156 + error = -EACCES;
62157 + goto out;
62158 + }
62159 +
62160 audit_inode(name, nd->path.dentry, 0);
62161 +
62162 error = -EISDIR;
62163 if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
62164 goto out;
62165 @@ -3190,7 +3282,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
62166 if (unlikely(error))
62167 goto out;
62168
62169 - error = do_last(nd, &path, file, op, &opened, pathname);
62170 + error = do_last(nd, &path, NULL, file, op, &opened, pathname);
62171 while (unlikely(error > 0)) { /* trailing symlink */
62172 struct path link = path;
62173 void *cookie;
62174 @@ -3208,7 +3300,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
62175 error = follow_link(&link, nd, &cookie);
62176 if (unlikely(error))
62177 break;
62178 - error = do_last(nd, &path, file, op, &opened, pathname);
62179 + error = do_last(nd, &path, &link, file, op, &opened, pathname);
62180 put_link(nd, &link, cookie);
62181 }
62182 out:
62183 @@ -3308,9 +3400,11 @@ struct dentry *kern_path_create(int dfd, const char *pathname,
62184 goto unlock;
62185
62186 error = -EEXIST;
62187 - if (d_is_positive(dentry))
62188 + if (d_is_positive(dentry)) {
62189 + if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt))
62190 + error = -ENOENT;
62191 goto fail;
62192 -
62193 + }
62194 /*
62195 * Special case - lookup gave negative, but... we had foo/bar/
62196 * From the vfs_mknod() POV we just have a negative dentry -
62197 @@ -3362,6 +3456,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
62198 }
62199 EXPORT_SYMBOL(user_path_create);
62200
62201 +static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
62202 +{
62203 + struct filename *tmp = getname(pathname);
62204 + struct dentry *res;
62205 + if (IS_ERR(tmp))
62206 + return ERR_CAST(tmp);
62207 + res = kern_path_create(dfd, tmp->name, path, lookup_flags);
62208 + if (IS_ERR(res))
62209 + putname(tmp);
62210 + else
62211 + *to = tmp;
62212 + return res;
62213 +}
62214 +
62215 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
62216 {
62217 int error = may_create(dir, dentry);
62218 @@ -3425,6 +3533,17 @@ retry:
62219
62220 if (!IS_POSIXACL(path.dentry->d_inode))
62221 mode &= ~current_umask();
62222 +
62223 + if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
62224 + error = -EPERM;
62225 + goto out;
62226 + }
62227 +
62228 + if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
62229 + error = -EACCES;
62230 + goto out;
62231 + }
62232 +
62233 error = security_path_mknod(&path, dentry, mode, dev);
62234 if (error)
62235 goto out;
62236 @@ -3441,6 +3560,8 @@ retry:
62237 break;
62238 }
62239 out:
62240 + if (!error)
62241 + gr_handle_create(dentry, path.mnt);
62242 done_path_create(&path, dentry);
62243 if (retry_estale(error, lookup_flags)) {
62244 lookup_flags |= LOOKUP_REVAL;
62245 @@ -3494,9 +3615,16 @@ retry:
62246
62247 if (!IS_POSIXACL(path.dentry->d_inode))
62248 mode &= ~current_umask();
62249 + if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
62250 + error = -EACCES;
62251 + goto out;
62252 + }
62253 error = security_path_mkdir(&path, dentry, mode);
62254 if (!error)
62255 error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
62256 + if (!error)
62257 + gr_handle_create(dentry, path.mnt);
62258 +out:
62259 done_path_create(&path, dentry);
62260 if (retry_estale(error, lookup_flags)) {
62261 lookup_flags |= LOOKUP_REVAL;
62262 @@ -3579,6 +3707,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
62263 struct filename *name;
62264 struct dentry *dentry;
62265 struct nameidata nd;
62266 + ino_t saved_ino = 0;
62267 + dev_t saved_dev = 0;
62268 unsigned int lookup_flags = 0;
62269 retry:
62270 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
62271 @@ -3611,10 +3741,21 @@ retry:
62272 error = -ENOENT;
62273 goto exit3;
62274 }
62275 +
62276 + saved_ino = dentry->d_inode->i_ino;
62277 + saved_dev = gr_get_dev_from_dentry(dentry);
62278 +
62279 + if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
62280 + error = -EACCES;
62281 + goto exit3;
62282 + }
62283 +
62284 error = security_path_rmdir(&nd.path, dentry);
62285 if (error)
62286 goto exit3;
62287 error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
62288 + if (!error && (saved_dev || saved_ino))
62289 + gr_handle_delete(saved_ino, saved_dev);
62290 exit3:
62291 dput(dentry);
62292 exit2:
62293 @@ -3705,6 +3846,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
62294 struct nameidata nd;
62295 struct inode *inode = NULL;
62296 struct inode *delegated_inode = NULL;
62297 + ino_t saved_ino = 0;
62298 + dev_t saved_dev = 0;
62299 unsigned int lookup_flags = 0;
62300 retry:
62301 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
62302 @@ -3731,10 +3874,22 @@ retry_deleg:
62303 if (d_is_negative(dentry))
62304 goto slashes;
62305 ihold(inode);
62306 +
62307 + if (inode->i_nlink <= 1) {
62308 + saved_ino = inode->i_ino;
62309 + saved_dev = gr_get_dev_from_dentry(dentry);
62310 + }
62311 + if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
62312 + error = -EACCES;
62313 + goto exit2;
62314 + }
62315 +
62316 error = security_path_unlink(&nd.path, dentry);
62317 if (error)
62318 goto exit2;
62319 error = vfs_unlink(nd.path.dentry->d_inode, dentry, &delegated_inode);
62320 + if (!error && (saved_ino || saved_dev))
62321 + gr_handle_delete(saved_ino, saved_dev);
62322 exit2:
62323 dput(dentry);
62324 }
62325 @@ -3823,9 +3978,17 @@ retry:
62326 if (IS_ERR(dentry))
62327 goto out_putname;
62328
62329 + if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
62330 + error = -EACCES;
62331 + goto out;
62332 + }
62333 +
62334 error = security_path_symlink(&path, dentry, from->name);
62335 if (!error)
62336 error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
62337 + if (!error)
62338 + gr_handle_create(dentry, path.mnt);
62339 +out:
62340 done_path_create(&path, dentry);
62341 if (retry_estale(error, lookup_flags)) {
62342 lookup_flags |= LOOKUP_REVAL;
62343 @@ -3929,6 +4092,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
62344 struct dentry *new_dentry;
62345 struct path old_path, new_path;
62346 struct inode *delegated_inode = NULL;
62347 + struct filename *to = NULL;
62348 int how = 0;
62349 int error;
62350
62351 @@ -3952,7 +4116,7 @@ retry:
62352 if (error)
62353 return error;
62354
62355 - new_dentry = user_path_create(newdfd, newname, &new_path,
62356 + new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
62357 (how & LOOKUP_REVAL));
62358 error = PTR_ERR(new_dentry);
62359 if (IS_ERR(new_dentry))
62360 @@ -3964,11 +4128,28 @@ retry:
62361 error = may_linkat(&old_path);
62362 if (unlikely(error))
62363 goto out_dput;
62364 +
62365 + if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
62366 + old_path.dentry->d_inode,
62367 + old_path.dentry->d_inode->i_mode, to)) {
62368 + error = -EACCES;
62369 + goto out_dput;
62370 + }
62371 +
62372 + if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
62373 + old_path.dentry, old_path.mnt, to)) {
62374 + error = -EACCES;
62375 + goto out_dput;
62376 + }
62377 +
62378 error = security_path_link(old_path.dentry, &new_path, new_dentry);
62379 if (error)
62380 goto out_dput;
62381 error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
62382 + if (!error)
62383 + gr_handle_create(new_dentry, new_path.mnt);
62384 out_dput:
62385 + putname(to);
62386 done_path_create(&new_path, new_dentry);
62387 if (delegated_inode) {
62388 error = break_deleg_wait(&delegated_inode);
62389 @@ -4278,6 +4459,12 @@ retry_deleg:
62390 if (new_dentry == trap)
62391 goto exit5;
62392
62393 + error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
62394 + old_dentry, old_dir->d_inode, oldnd.path.mnt,
62395 + to, flags);
62396 + if (error)
62397 + goto exit5;
62398 +
62399 error = security_path_rename(&oldnd.path, old_dentry,
62400 &newnd.path, new_dentry, flags);
62401 if (error)
62402 @@ -4285,6 +4472,9 @@ retry_deleg:
62403 error = vfs_rename(old_dir->d_inode, old_dentry,
62404 new_dir->d_inode, new_dentry,
62405 &delegated_inode, flags);
62406 + if (!error)
62407 + gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
62408 + new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0, flags);
62409 exit5:
62410 dput(new_dentry);
62411 exit4:
62412 @@ -4327,14 +4517,24 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
62413
62414 int readlink_copy(char __user *buffer, int buflen, const char *link)
62415 {
62416 + char tmpbuf[64];
62417 + const char *newlink;
62418 int len = PTR_ERR(link);
62419 +
62420 if (IS_ERR(link))
62421 goto out;
62422
62423 len = strlen(link);
62424 if (len > (unsigned) buflen)
62425 len = buflen;
62426 - if (copy_to_user(buffer, link, len))
62427 +
62428 + if (len < sizeof(tmpbuf)) {
62429 + memcpy(tmpbuf, link, len);
62430 + newlink = tmpbuf;
62431 + } else
62432 + newlink = link;
62433 +
62434 + if (copy_to_user(buffer, newlink, len))
62435 len = -EFAULT;
62436 out:
62437 return len;
62438 diff --git a/fs/namespace.c b/fs/namespace.c
62439 index 182bc41..72e3cf1 100644
62440 --- a/fs/namespace.c
62441 +++ b/fs/namespace.c
62442 @@ -1348,6 +1348,9 @@ static int do_umount(struct mount *mnt, int flags)
62443 if (!(sb->s_flags & MS_RDONLY))
62444 retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
62445 up_write(&sb->s_umount);
62446 +
62447 + gr_log_remount(mnt->mnt_devname, retval);
62448 +
62449 return retval;
62450 }
62451
62452 @@ -1370,6 +1373,9 @@ static int do_umount(struct mount *mnt, int flags)
62453 }
62454 unlock_mount_hash();
62455 namespace_unlock();
62456 +
62457 + gr_log_unmount(mnt->mnt_devname, retval);
62458 +
62459 return retval;
62460 }
62461
62462 @@ -1389,7 +1395,7 @@ static inline bool may_mount(void)
62463 * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
62464 */
62465
62466 -SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
62467 +SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
62468 {
62469 struct path path;
62470 struct mount *mnt;
62471 @@ -1431,7 +1437,7 @@ out:
62472 /*
62473 * The 2.0 compatible umount. No flags.
62474 */
62475 -SYSCALL_DEFINE1(oldumount, char __user *, name)
62476 +SYSCALL_DEFINE1(oldumount, const char __user *, name)
62477 {
62478 return sys_umount(name, 0);
62479 }
62480 @@ -2440,6 +2446,16 @@ long do_mount(const char *dev_name, const char *dir_name,
62481 MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
62482 MS_STRICTATIME);
62483
62484 + if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
62485 + retval = -EPERM;
62486 + goto dput_out;
62487 + }
62488 +
62489 + if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
62490 + retval = -EPERM;
62491 + goto dput_out;
62492 + }
62493 +
62494 if (flags & MS_REMOUNT)
62495 retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
62496 data_page);
62497 @@ -2454,6 +2470,9 @@ long do_mount(const char *dev_name, const char *dir_name,
62498 dev_name, data_page);
62499 dput_out:
62500 path_put(&path);
62501 +
62502 + gr_log_mount(dev_name, dir_name, retval);
62503 +
62504 return retval;
62505 }
62506
62507 @@ -2471,7 +2490,7 @@ static void free_mnt_ns(struct mnt_namespace *ns)
62508 * number incrementing at 10Ghz will take 12,427 years to wrap which
62509 * is effectively never, so we can ignore the possibility.
62510 */
62511 -static atomic64_t mnt_ns_seq = ATOMIC64_INIT(1);
62512 +static atomic64_unchecked_t mnt_ns_seq = ATOMIC64_INIT(1);
62513
62514 static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
62515 {
62516 @@ -2486,7 +2505,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
62517 kfree(new_ns);
62518 return ERR_PTR(ret);
62519 }
62520 - new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
62521 + new_ns->seq = atomic64_inc_return_unchecked(&mnt_ns_seq);
62522 atomic_set(&new_ns->count, 1);
62523 new_ns->root = NULL;
62524 INIT_LIST_HEAD(&new_ns->list);
62525 @@ -2496,7 +2515,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
62526 return new_ns;
62527 }
62528
62529 -struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
62530 +__latent_entropy struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
62531 struct user_namespace *user_ns, struct fs_struct *new_fs)
62532 {
62533 struct mnt_namespace *new_ns;
62534 @@ -2617,8 +2636,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
62535 }
62536 EXPORT_SYMBOL(mount_subtree);
62537
62538 -SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
62539 - char __user *, type, unsigned long, flags, void __user *, data)
62540 +SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
62541 + const char __user *, type, unsigned long, flags, void __user *, data)
62542 {
62543 int ret;
62544 char *kernel_type;
62545 @@ -2731,6 +2750,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
62546 if (error)
62547 goto out2;
62548
62549 + if (gr_handle_chroot_pivot()) {
62550 + error = -EPERM;
62551 + goto out2;
62552 + }
62553 +
62554 get_fs_root(current->fs, &root);
62555 old_mp = lock_mount(&old);
62556 error = PTR_ERR(old_mp);
62557 @@ -2999,7 +3023,7 @@ static int mntns_install(struct nsproxy *nsproxy, void *ns)
62558 !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
62559 return -EPERM;
62560
62561 - if (fs->users != 1)
62562 + if (atomic_read(&fs->users) != 1)
62563 return -EINVAL;
62564
62565 get_mnt_ns(mnt_ns);
62566 diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
62567 index f4ccfe6..a5cf064 100644
62568 --- a/fs/nfs/callback_xdr.c
62569 +++ b/fs/nfs/callback_xdr.c
62570 @@ -51,7 +51,7 @@ struct callback_op {
62571 callback_decode_arg_t decode_args;
62572 callback_encode_res_t encode_res;
62573 long res_maxsize;
62574 -};
62575 +} __do_const;
62576
62577 static struct callback_op callback_ops[];
62578
62579 diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
62580 index c79f3e7..d61d671 100644
62581 --- a/fs/nfs/inode.c
62582 +++ b/fs/nfs/inode.c
62583 @@ -1209,16 +1209,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt
62584 return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
62585 }
62586
62587 -static atomic_long_t nfs_attr_generation_counter;
62588 +static atomic_long_unchecked_t nfs_attr_generation_counter;
62589
62590 static unsigned long nfs_read_attr_generation_counter(void)
62591 {
62592 - return atomic_long_read(&nfs_attr_generation_counter);
62593 + return atomic_long_read_unchecked(&nfs_attr_generation_counter);
62594 }
62595
62596 unsigned long nfs_inc_attr_generation_counter(void)
62597 {
62598 - return atomic_long_inc_return(&nfs_attr_generation_counter);
62599 + return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
62600 }
62601
62602 void nfs_fattr_init(struct nfs_fattr *fattr)
62603 diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
62604 index 95e3720..46c23fa 100644
62605 --- a/fs/nfsd/nfs4proc.c
62606 +++ b/fs/nfsd/nfs4proc.c
62607 @@ -1169,7 +1169,7 @@ struct nfsd4_operation {
62608 nfsd4op_rsize op_rsize_bop;
62609 stateid_getter op_get_currentstateid;
62610 stateid_setter op_set_currentstateid;
62611 -};
62612 +} __do_const;
62613
62614 static struct nfsd4_operation nfsd4_ops[];
62615
62616 diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
62617 index 3297158..7bb8436 100644
62618 --- a/fs/nfsd/nfs4xdr.c
62619 +++ b/fs/nfsd/nfs4xdr.c
62620 @@ -1541,7 +1541,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
62621
62622 typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
62623
62624 -static nfsd4_dec nfsd4_dec_ops[] = {
62625 +static const nfsd4_dec nfsd4_dec_ops[] = {
62626 [OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access,
62627 [OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close,
62628 [OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit,
62629 diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
62630 index f8f060f..c4ba09a 100644
62631 --- a/fs/nfsd/nfscache.c
62632 +++ b/fs/nfsd/nfscache.c
62633 @@ -519,14 +519,17 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
62634 {
62635 struct svc_cacherep *rp = rqstp->rq_cacherep;
62636 struct kvec *resv = &rqstp->rq_res.head[0], *cachv;
62637 - int len;
62638 + long len;
62639 size_t bufsize = 0;
62640
62641 if (!rp)
62642 return;
62643
62644 - len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
62645 - len >>= 2;
62646 + if (statp) {
62647 + len = (char*)statp - (char*)resv->iov_base;
62648 + len = resv->iov_len - len;
62649 + len >>= 2;
62650 + }
62651
62652 /* Don't cache excessive amounts of data and XDR failures */
62653 if (!statp || len > (256 >> 2)) {
62654 diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
62655 index 16f0673..1c2c30ab 100644
62656 --- a/fs/nfsd/vfs.c
62657 +++ b/fs/nfsd/vfs.c
62658 @@ -843,7 +843,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
62659 } else {
62660 oldfs = get_fs();
62661 set_fs(KERNEL_DS);
62662 - host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
62663 + host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
62664 set_fs(oldfs);
62665 }
62666
62667 @@ -934,7 +934,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
62668
62669 /* Write the data. */
62670 oldfs = get_fs(); set_fs(KERNEL_DS);
62671 - host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
62672 + host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos);
62673 set_fs(oldfs);
62674 if (host_err < 0)
62675 goto out_nfserr;
62676 @@ -1479,7 +1479,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
62677 */
62678
62679 oldfs = get_fs(); set_fs(KERNEL_DS);
62680 - host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
62681 + host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
62682 set_fs(oldfs);
62683
62684 if (host_err < 0)
62685 diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
62686 index 52ccd34..43a53b1 100644
62687 --- a/fs/nls/nls_base.c
62688 +++ b/fs/nls/nls_base.c
62689 @@ -234,21 +234,25 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
62690
62691 int __register_nls(struct nls_table *nls, struct module *owner)
62692 {
62693 - struct nls_table ** tmp = &tables;
62694 + struct nls_table *tmp = tables;
62695
62696 if (nls->next)
62697 return -EBUSY;
62698
62699 - nls->owner = owner;
62700 + pax_open_kernel();
62701 + *(void **)&nls->owner = owner;
62702 + pax_close_kernel();
62703 spin_lock(&nls_lock);
62704 - while (*tmp) {
62705 - if (nls == *tmp) {
62706 + while (tmp) {
62707 + if (nls == tmp) {
62708 spin_unlock(&nls_lock);
62709 return -EBUSY;
62710 }
62711 - tmp = &(*tmp)->next;
62712 + tmp = tmp->next;
62713 }
62714 - nls->next = tables;
62715 + pax_open_kernel();
62716 + *(struct nls_table **)&nls->next = tables;
62717 + pax_close_kernel();
62718 tables = nls;
62719 spin_unlock(&nls_lock);
62720 return 0;
62721 @@ -257,12 +261,14 @@ EXPORT_SYMBOL(__register_nls);
62722
62723 int unregister_nls(struct nls_table * nls)
62724 {
62725 - struct nls_table ** tmp = &tables;
62726 + struct nls_table * const * tmp = &tables;
62727
62728 spin_lock(&nls_lock);
62729 while (*tmp) {
62730 if (nls == *tmp) {
62731 - *tmp = nls->next;
62732 + pax_open_kernel();
62733 + *(struct nls_table **)tmp = nls->next;
62734 + pax_close_kernel();
62735 spin_unlock(&nls_lock);
62736 return 0;
62737 }
62738 diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
62739 index 162b3f1..6076a7c 100644
62740 --- a/fs/nls/nls_euc-jp.c
62741 +++ b/fs/nls/nls_euc-jp.c
62742 @@ -560,8 +560,10 @@ static int __init init_nls_euc_jp(void)
62743 p_nls = load_nls("cp932");
62744
62745 if (p_nls) {
62746 - table.charset2upper = p_nls->charset2upper;
62747 - table.charset2lower = p_nls->charset2lower;
62748 + pax_open_kernel();
62749 + *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
62750 + *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
62751 + pax_close_kernel();
62752 return register_nls(&table);
62753 }
62754
62755 diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
62756 index a80a741..7b96e1b 100644
62757 --- a/fs/nls/nls_koi8-ru.c
62758 +++ b/fs/nls/nls_koi8-ru.c
62759 @@ -62,8 +62,10 @@ static int __init init_nls_koi8_ru(void)
62760 p_nls = load_nls("koi8-u");
62761
62762 if (p_nls) {
62763 - table.charset2upper = p_nls->charset2upper;
62764 - table.charset2lower = p_nls->charset2lower;
62765 + pax_open_kernel();
62766 + *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
62767 + *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
62768 + pax_close_kernel();
62769 return register_nls(&table);
62770 }
62771
62772 diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
62773 index 732648b..d3b017f 100644
62774 --- a/fs/notify/fanotify/fanotify_user.c
62775 +++ b/fs/notify/fanotify/fanotify_user.c
62776 @@ -203,8 +203,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
62777
62778 fd = fanotify_event_metadata.fd;
62779 ret = -EFAULT;
62780 - if (copy_to_user(buf, &fanotify_event_metadata,
62781 - fanotify_event_metadata.event_len))
62782 + if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
62783 + copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
62784 goto out_close_fd;
62785
62786 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
62787 diff --git a/fs/notify/notification.c b/fs/notify/notification.c
62788 index 1e58402..bb2d6f4 100644
62789 --- a/fs/notify/notification.c
62790 +++ b/fs/notify/notification.c
62791 @@ -48,7 +48,7 @@
62792 #include <linux/fsnotify_backend.h>
62793 #include "fsnotify.h"
62794
62795 -static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
62796 +static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
62797
62798 /**
62799 * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
62800 @@ -56,7 +56,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
62801 */
62802 u32 fsnotify_get_cookie(void)
62803 {
62804 - return atomic_inc_return(&fsnotify_sync_cookie);
62805 + return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
62806 }
62807 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
62808
62809 diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
62810 index 9e38daf..5727cae 100644
62811 --- a/fs/ntfs/dir.c
62812 +++ b/fs/ntfs/dir.c
62813 @@ -1310,7 +1310,7 @@ find_next_index_buffer:
62814 ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
62815 ~(s64)(ndir->itype.index.block_size - 1)));
62816 /* Bounds checks. */
62817 - if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
62818 + if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
62819 ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
62820 "inode 0x%lx or driver bug.", vdir->i_ino);
62821 goto err_out;
62822 diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
62823 index db9bd8a..8338fb6 100644
62824 --- a/fs/ntfs/file.c
62825 +++ b/fs/ntfs/file.c
62826 @@ -1282,7 +1282,7 @@ static inline size_t ntfs_copy_from_user(struct page **pages,
62827 char *addr;
62828 size_t total = 0;
62829 unsigned len;
62830 - int left;
62831 + unsigned left;
62832
62833 do {
62834 len = PAGE_CACHE_SIZE - ofs;
62835 diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
62836 index 9de2491..3306095 100644
62837 --- a/fs/ntfs/super.c
62838 +++ b/fs/ntfs/super.c
62839 @@ -688,7 +688,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
62840 if (!silent)
62841 ntfs_error(sb, "Primary boot sector is invalid.");
62842 } else if (!silent)
62843 - ntfs_error(sb, read_err_str, "primary");
62844 + ntfs_error(sb, read_err_str, "%s", "primary");
62845 if (!(NTFS_SB(sb)->on_errors & ON_ERRORS_RECOVER)) {
62846 if (bh_primary)
62847 brelse(bh_primary);
62848 @@ -704,7 +704,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
62849 goto hotfix_primary_boot_sector;
62850 brelse(bh_backup);
62851 } else if (!silent)
62852 - ntfs_error(sb, read_err_str, "backup");
62853 + ntfs_error(sb, read_err_str, "%s", "backup");
62854 /* Try to read NT3.51- backup boot sector. */
62855 if ((bh_backup = sb_bread(sb, nr_blocks >> 1))) {
62856 if (is_boot_sector_ntfs(sb, (NTFS_BOOT_SECTOR*)
62857 @@ -715,7 +715,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
62858 "sector.");
62859 brelse(bh_backup);
62860 } else if (!silent)
62861 - ntfs_error(sb, read_err_str, "backup");
62862 + ntfs_error(sb, read_err_str, "%s", "backup");
62863 /* We failed. Cleanup and return. */
62864 if (bh_primary)
62865 brelse(bh_primary);
62866 diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
62867 index 0440134..d52c93a 100644
62868 --- a/fs/ocfs2/localalloc.c
62869 +++ b/fs/ocfs2/localalloc.c
62870 @@ -1320,7 +1320,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
62871 goto bail;
62872 }
62873
62874 - atomic_inc(&osb->alloc_stats.moves);
62875 + atomic_inc_unchecked(&osb->alloc_stats.moves);
62876
62877 bail:
62878 if (handle)
62879 diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
62880 index 8d64a97..c37665d 100644
62881 --- a/fs/ocfs2/ocfs2.h
62882 +++ b/fs/ocfs2/ocfs2.h
62883 @@ -236,11 +236,11 @@ enum ocfs2_vol_state
62884
62885 struct ocfs2_alloc_stats
62886 {
62887 - atomic_t moves;
62888 - atomic_t local_data;
62889 - atomic_t bitmap_data;
62890 - atomic_t bg_allocs;
62891 - atomic_t bg_extends;
62892 + atomic_unchecked_t moves;
62893 + atomic_unchecked_t local_data;
62894 + atomic_unchecked_t bitmap_data;
62895 + atomic_unchecked_t bg_allocs;
62896 + atomic_unchecked_t bg_extends;
62897 };
62898
62899 enum ocfs2_local_alloc_state
62900 diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
62901 index 0cb889a..6a26b24 100644
62902 --- a/fs/ocfs2/suballoc.c
62903 +++ b/fs/ocfs2/suballoc.c
62904 @@ -867,7 +867,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
62905 mlog_errno(status);
62906 goto bail;
62907 }
62908 - atomic_inc(&osb->alloc_stats.bg_extends);
62909 + atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
62910
62911 /* You should never ask for this much metadata */
62912 BUG_ON(bits_wanted >
62913 @@ -2014,7 +2014,7 @@ int ocfs2_claim_metadata(handle_t *handle,
62914 mlog_errno(status);
62915 goto bail;
62916 }
62917 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62918 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62919
62920 *suballoc_loc = res.sr_bg_blkno;
62921 *suballoc_bit_start = res.sr_bit_offset;
62922 @@ -2180,7 +2180,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
62923 trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
62924 res->sr_bits);
62925
62926 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62927 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62928
62929 BUG_ON(res->sr_bits != 1);
62930
62931 @@ -2222,7 +2222,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
62932 mlog_errno(status);
62933 goto bail;
62934 }
62935 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62936 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
62937
62938 BUG_ON(res.sr_bits != 1);
62939
62940 @@ -2326,7 +2326,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
62941 cluster_start,
62942 num_clusters);
62943 if (!status)
62944 - atomic_inc(&osb->alloc_stats.local_data);
62945 + atomic_inc_unchecked(&osb->alloc_stats.local_data);
62946 } else {
62947 if (min_clusters > (osb->bitmap_cpg - 1)) {
62948 /* The only paths asking for contiguousness
62949 @@ -2352,7 +2352,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
62950 ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
62951 res.sr_bg_blkno,
62952 res.sr_bit_offset);
62953 - atomic_inc(&osb->alloc_stats.bitmap_data);
62954 + atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
62955 *num_clusters = res.sr_bits;
62956 }
62957 }
62958 diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
62959 index a7cdd56..c583144 100644
62960 --- a/fs/ocfs2/super.c
62961 +++ b/fs/ocfs2/super.c
62962 @@ -300,11 +300,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
62963 "%10s => GlobalAllocs: %d LocalAllocs: %d "
62964 "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n",
62965 "Stats",
62966 - atomic_read(&osb->alloc_stats.bitmap_data),
62967 - atomic_read(&osb->alloc_stats.local_data),
62968 - atomic_read(&osb->alloc_stats.bg_allocs),
62969 - atomic_read(&osb->alloc_stats.moves),
62970 - atomic_read(&osb->alloc_stats.bg_extends));
62971 + atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
62972 + atomic_read_unchecked(&osb->alloc_stats.local_data),
62973 + atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
62974 + atomic_read_unchecked(&osb->alloc_stats.moves),
62975 + atomic_read_unchecked(&osb->alloc_stats.bg_extends));
62976
62977 out += snprintf(buf + out, len - out,
62978 "%10s => State: %u Descriptor: %llu Size: %u bits "
62979 @@ -2104,11 +2104,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
62980
62981 mutex_init(&osb->system_file_mutex);
62982
62983 - atomic_set(&osb->alloc_stats.moves, 0);
62984 - atomic_set(&osb->alloc_stats.local_data, 0);
62985 - atomic_set(&osb->alloc_stats.bitmap_data, 0);
62986 - atomic_set(&osb->alloc_stats.bg_allocs, 0);
62987 - atomic_set(&osb->alloc_stats.bg_extends, 0);
62988 + atomic_set_unchecked(&osb->alloc_stats.moves, 0);
62989 + atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
62990 + atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
62991 + atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
62992 + atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
62993
62994 /* Copy the blockcheck stats from the superblock probe */
62995 osb->osb_ecc_stats = *stats;
62996 diff --git a/fs/open.c b/fs/open.c
62997 index 9d64679..75f925c 100644
62998 --- a/fs/open.c
62999 +++ b/fs/open.c
63000 @@ -32,6 +32,8 @@
63001 #include <linux/dnotify.h>
63002 #include <linux/compat.h>
63003
63004 +#define CREATE_TRACE_POINTS
63005 +#include <trace/events/fs.h>
63006 #include "internal.h"
63007
63008 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
63009 @@ -103,6 +105,8 @@ long vfs_truncate(struct path *path, loff_t length)
63010 error = locks_verify_truncate(inode, NULL, length);
63011 if (!error)
63012 error = security_path_truncate(path);
63013 + if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
63014 + error = -EACCES;
63015 if (!error)
63016 error = do_truncate(path->dentry, length, 0, NULL);
63017
63018 @@ -187,6 +191,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
63019 error = locks_verify_truncate(inode, f.file, length);
63020 if (!error)
63021 error = security_path_truncate(&f.file->f_path);
63022 + if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
63023 + error = -EACCES;
63024 if (!error)
63025 error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
63026 sb_end_write(inode->i_sb);
63027 @@ -381,6 +387,9 @@ retry:
63028 if (__mnt_is_readonly(path.mnt))
63029 res = -EROFS;
63030
63031 + if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
63032 + res = -EACCES;
63033 +
63034 out_path_release:
63035 path_put(&path);
63036 if (retry_estale(res, lookup_flags)) {
63037 @@ -412,6 +421,8 @@ retry:
63038 if (error)
63039 goto dput_and_out;
63040
63041 + gr_log_chdir(path.dentry, path.mnt);
63042 +
63043 set_fs_pwd(current->fs, &path);
63044
63045 dput_and_out:
63046 @@ -441,6 +452,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
63047 goto out_putf;
63048
63049 error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
63050 +
63051 + if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
63052 + error = -EPERM;
63053 +
63054 + if (!error)
63055 + gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
63056 +
63057 if (!error)
63058 set_fs_pwd(current->fs, &f.file->f_path);
63059 out_putf:
63060 @@ -470,7 +488,13 @@ retry:
63061 if (error)
63062 goto dput_and_out;
63063
63064 + if (gr_handle_chroot_chroot(path.dentry, path.mnt))
63065 + goto dput_and_out;
63066 +
63067 set_fs_root(current->fs, &path);
63068 +
63069 + gr_handle_chroot_chdir(&path);
63070 +
63071 error = 0;
63072 dput_and_out:
63073 path_put(&path);
63074 @@ -494,6 +518,16 @@ static int chmod_common(struct path *path, umode_t mode)
63075 return error;
63076 retry_deleg:
63077 mutex_lock(&inode->i_mutex);
63078 +
63079 + if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
63080 + error = -EACCES;
63081 + goto out_unlock;
63082 + }
63083 + if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
63084 + error = -EACCES;
63085 + goto out_unlock;
63086 + }
63087 +
63088 error = security_path_chmod(path, mode);
63089 if (error)
63090 goto out_unlock;
63091 @@ -559,6 +593,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
63092 uid = make_kuid(current_user_ns(), user);
63093 gid = make_kgid(current_user_ns(), group);
63094
63095 + if (!gr_acl_handle_chown(path->dentry, path->mnt))
63096 + return -EACCES;
63097 +
63098 newattrs.ia_valid = ATTR_CTIME;
63099 if (user != (uid_t) -1) {
63100 if (!uid_valid(uid))
63101 @@ -978,6 +1015,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
63102 } else {
63103 fsnotify_open(f);
63104 fd_install(fd, f);
63105 + trace_do_sys_open(tmp->name, flags, mode);
63106 }
63107 }
63108 putname(tmp);
63109 diff --git a/fs/pipe.c b/fs/pipe.c
63110 index 034bffa..6c6b522 100644
63111 --- a/fs/pipe.c
63112 +++ b/fs/pipe.c
63113 @@ -56,7 +56,7 @@ unsigned int pipe_min_size = PAGE_SIZE;
63114
63115 static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
63116 {
63117 - if (pipe->files)
63118 + if (atomic_read(&pipe->files))
63119 mutex_lock_nested(&pipe->mutex, subclass);
63120 }
63121
63122 @@ -71,7 +71,7 @@ EXPORT_SYMBOL(pipe_lock);
63123
63124 void pipe_unlock(struct pipe_inode_info *pipe)
63125 {
63126 - if (pipe->files)
63127 + if (atomic_read(&pipe->files))
63128 mutex_unlock(&pipe->mutex);
63129 }
63130 EXPORT_SYMBOL(pipe_unlock);
63131 @@ -342,9 +342,9 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
63132 }
63133 if (bufs) /* More to do? */
63134 continue;
63135 - if (!pipe->writers)
63136 + if (!atomic_read(&pipe->writers))
63137 break;
63138 - if (!pipe->waiting_writers) {
63139 + if (!atomic_read(&pipe->waiting_writers)) {
63140 /* syscall merging: Usually we must not sleep
63141 * if O_NONBLOCK is set, or if we got some data.
63142 * But if a writer sleeps in kernel space, then
63143 @@ -406,7 +406,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
63144 ret = 0;
63145 __pipe_lock(pipe);
63146
63147 - if (!pipe->readers) {
63148 + if (!atomic_read(&pipe->readers)) {
63149 send_sig(SIGPIPE, current, 0);
63150 ret = -EPIPE;
63151 goto out;
63152 @@ -461,7 +461,7 @@ redo1:
63153 for (;;) {
63154 int bufs;
63155
63156 - if (!pipe->readers) {
63157 + if (!atomic_read(&pipe->readers)) {
63158 send_sig(SIGPIPE, current, 0);
63159 if (!ret)
63160 ret = -EPIPE;
63161 @@ -552,9 +552,9 @@ redo2:
63162 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
63163 do_wakeup = 0;
63164 }
63165 - pipe->waiting_writers++;
63166 + atomic_inc(&pipe->waiting_writers);
63167 pipe_wait(pipe);
63168 - pipe->waiting_writers--;
63169 + atomic_dec(&pipe->waiting_writers);
63170 }
63171 out:
63172 __pipe_unlock(pipe);
63173 @@ -609,7 +609,7 @@ pipe_poll(struct file *filp, poll_table *wait)
63174 mask = 0;
63175 if (filp->f_mode & FMODE_READ) {
63176 mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
63177 - if (!pipe->writers && filp->f_version != pipe->w_counter)
63178 + if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
63179 mask |= POLLHUP;
63180 }
63181
63182 @@ -619,7 +619,7 @@ pipe_poll(struct file *filp, poll_table *wait)
63183 * Most Unices do not set POLLERR for FIFOs but on Linux they
63184 * behave exactly like pipes for poll().
63185 */
63186 - if (!pipe->readers)
63187 + if (!atomic_read(&pipe->readers))
63188 mask |= POLLERR;
63189 }
63190
63191 @@ -631,7 +631,7 @@ static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
63192 int kill = 0;
63193
63194 spin_lock(&inode->i_lock);
63195 - if (!--pipe->files) {
63196 + if (atomic_dec_and_test(&pipe->files)) {
63197 inode->i_pipe = NULL;
63198 kill = 1;
63199 }
63200 @@ -648,11 +648,11 @@ pipe_release(struct inode *inode, struct file *file)
63201
63202 __pipe_lock(pipe);
63203 if (file->f_mode & FMODE_READ)
63204 - pipe->readers--;
63205 + atomic_dec(&pipe->readers);
63206 if (file->f_mode & FMODE_WRITE)
63207 - pipe->writers--;
63208 + atomic_dec(&pipe->writers);
63209
63210 - if (pipe->readers || pipe->writers) {
63211 + if (atomic_read(&pipe->readers) || atomic_read(&pipe->writers)) {
63212 wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
63213 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
63214 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
63215 @@ -717,7 +717,7 @@ void free_pipe_info(struct pipe_inode_info *pipe)
63216 kfree(pipe);
63217 }
63218
63219 -static struct vfsmount *pipe_mnt __read_mostly;
63220 +struct vfsmount *pipe_mnt __read_mostly;
63221
63222 /*
63223 * pipefs_dname() is called from d_path().
63224 @@ -747,8 +747,9 @@ static struct inode * get_pipe_inode(void)
63225 goto fail_iput;
63226
63227 inode->i_pipe = pipe;
63228 - pipe->files = 2;
63229 - pipe->readers = pipe->writers = 1;
63230 + atomic_set(&pipe->files, 2);
63231 + atomic_set(&pipe->readers, 1);
63232 + atomic_set(&pipe->writers, 1);
63233 inode->i_fop = &pipefifo_fops;
63234
63235 /*
63236 @@ -927,17 +928,17 @@ static int fifo_open(struct inode *inode, struct file *filp)
63237 spin_lock(&inode->i_lock);
63238 if (inode->i_pipe) {
63239 pipe = inode->i_pipe;
63240 - pipe->files++;
63241 + atomic_inc(&pipe->files);
63242 spin_unlock(&inode->i_lock);
63243 } else {
63244 spin_unlock(&inode->i_lock);
63245 pipe = alloc_pipe_info();
63246 if (!pipe)
63247 return -ENOMEM;
63248 - pipe->files = 1;
63249 + atomic_set(&pipe->files, 1);
63250 spin_lock(&inode->i_lock);
63251 if (unlikely(inode->i_pipe)) {
63252 - inode->i_pipe->files++;
63253 + atomic_inc(&inode->i_pipe->files);
63254 spin_unlock(&inode->i_lock);
63255 free_pipe_info(pipe);
63256 pipe = inode->i_pipe;
63257 @@ -962,10 +963,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
63258 * opened, even when there is no process writing the FIFO.
63259 */
63260 pipe->r_counter++;
63261 - if (pipe->readers++ == 0)
63262 + if (atomic_inc_return(&pipe->readers) == 1)
63263 wake_up_partner(pipe);
63264
63265 - if (!is_pipe && !pipe->writers) {
63266 + if (!is_pipe && !atomic_read(&pipe->writers)) {
63267 if ((filp->f_flags & O_NONBLOCK)) {
63268 /* suppress POLLHUP until we have
63269 * seen a writer */
63270 @@ -984,14 +985,14 @@ static int fifo_open(struct inode *inode, struct file *filp)
63271 * errno=ENXIO when there is no process reading the FIFO.
63272 */
63273 ret = -ENXIO;
63274 - if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers)
63275 + if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
63276 goto err;
63277
63278 pipe->w_counter++;
63279 - if (!pipe->writers++)
63280 + if (atomic_inc_return(&pipe->writers) == 1)
63281 wake_up_partner(pipe);
63282
63283 - if (!is_pipe && !pipe->readers) {
63284 + if (!is_pipe && !atomic_read(&pipe->readers)) {
63285 if (wait_for_partner(pipe, &pipe->r_counter))
63286 goto err_wr;
63287 }
63288 @@ -1005,11 +1006,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
63289 * the process can at least talk to itself.
63290 */
63291
63292 - pipe->readers++;
63293 - pipe->writers++;
63294 + atomic_inc(&pipe->readers);
63295 + atomic_inc(&pipe->writers);
63296 pipe->r_counter++;
63297 pipe->w_counter++;
63298 - if (pipe->readers == 1 || pipe->writers == 1)
63299 + if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
63300 wake_up_partner(pipe);
63301 break;
63302
63303 @@ -1023,13 +1024,13 @@ static int fifo_open(struct inode *inode, struct file *filp)
63304 return 0;
63305
63306 err_rd:
63307 - if (!--pipe->readers)
63308 + if (atomic_dec_and_test(&pipe->readers))
63309 wake_up_interruptible(&pipe->wait);
63310 ret = -ERESTARTSYS;
63311 goto err;
63312
63313 err_wr:
63314 - if (!--pipe->writers)
63315 + if (atomic_dec_and_test(&pipe->writers))
63316 wake_up_interruptible(&pipe->wait);
63317 ret = -ERESTARTSYS;
63318 goto err;
63319 diff --git a/fs/posix_acl.c b/fs/posix_acl.c
63320 index 0855f77..6787d50 100644
63321 --- a/fs/posix_acl.c
63322 +++ b/fs/posix_acl.c
63323 @@ -20,6 +20,7 @@
63324 #include <linux/xattr.h>
63325 #include <linux/export.h>
63326 #include <linux/user_namespace.h>
63327 +#include <linux/grsecurity.h>
63328
63329 struct posix_acl **acl_by_type(struct inode *inode, int type)
63330 {
63331 @@ -277,7 +278,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
63332 }
63333 }
63334 if (mode_p)
63335 - *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
63336 + *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
63337 return not_equiv;
63338 }
63339 EXPORT_SYMBOL(posix_acl_equiv_mode);
63340 @@ -427,7 +428,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
63341 mode &= (group_obj->e_perm << 3) | ~S_IRWXG;
63342 }
63343
63344 - *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
63345 + *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
63346 return not_equiv;
63347 }
63348
63349 @@ -485,6 +486,8 @@ __posix_acl_create(struct posix_acl **acl, gfp_t gfp, umode_t *mode_p)
63350 struct posix_acl *clone = posix_acl_clone(*acl, gfp);
63351 int err = -ENOMEM;
63352 if (clone) {
63353 + *mode_p &= ~gr_acl_umask();
63354 +
63355 err = posix_acl_create_masq(clone, mode_p);
63356 if (err < 0) {
63357 posix_acl_release(clone);
63358 @@ -659,11 +662,12 @@ struct posix_acl *
63359 posix_acl_from_xattr(struct user_namespace *user_ns,
63360 const void *value, size_t size)
63361 {
63362 - posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
63363 - posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
63364 + const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
63365 + const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
63366 int count;
63367 struct posix_acl *acl;
63368 struct posix_acl_entry *acl_e;
63369 + umode_t umask = gr_acl_umask();
63370
63371 if (!value)
63372 return NULL;
63373 @@ -689,12 +693,18 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
63374
63375 switch(acl_e->e_tag) {
63376 case ACL_USER_OBJ:
63377 + acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
63378 + break;
63379 case ACL_GROUP_OBJ:
63380 case ACL_MASK:
63381 + acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
63382 + break;
63383 case ACL_OTHER:
63384 + acl_e->e_perm &= ~(umask & S_IRWXO);
63385 break;
63386
63387 case ACL_USER:
63388 + acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
63389 acl_e->e_uid =
63390 make_kuid(user_ns,
63391 le32_to_cpu(entry->e_id));
63392 @@ -702,6 +712,7 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
63393 goto fail;
63394 break;
63395 case ACL_GROUP:
63396 + acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
63397 acl_e->e_gid =
63398 make_kgid(user_ns,
63399 le32_to_cpu(entry->e_id));
63400 diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
63401 index 2183fcf..3c32a98 100644
63402 --- a/fs/proc/Kconfig
63403 +++ b/fs/proc/Kconfig
63404 @@ -30,7 +30,7 @@ config PROC_FS
63405
63406 config PROC_KCORE
63407 bool "/proc/kcore support" if !ARM
63408 - depends on PROC_FS && MMU
63409 + depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
63410 help
63411 Provides a virtual ELF core file of the live kernel. This can
63412 be read with gdb and other ELF tools. No modifications can be
63413 @@ -38,8 +38,8 @@ config PROC_KCORE
63414
63415 config PROC_VMCORE
63416 bool "/proc/vmcore support"
63417 - depends on PROC_FS && CRASH_DUMP
63418 - default y
63419 + depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
63420 + default n
63421 help
63422 Exports the dump image of crashed kernel in ELF format.
63423
63424 @@ -63,8 +63,8 @@ config PROC_SYSCTL
63425 limited in memory.
63426
63427 config PROC_PAGE_MONITOR
63428 - default y
63429 - depends on PROC_FS && MMU
63430 + default n
63431 + depends on PROC_FS && MMU && !GRKERNSEC
63432 bool "Enable /proc page monitoring" if EXPERT
63433 help
63434 Various /proc files exist to monitor process memory utilization:
63435 diff --git a/fs/proc/array.c b/fs/proc/array.c
63436 index 64db2bc..a8185d6 100644
63437 --- a/fs/proc/array.c
63438 +++ b/fs/proc/array.c
63439 @@ -60,6 +60,7 @@
63440 #include <linux/tty.h>
63441 #include <linux/string.h>
63442 #include <linux/mman.h>
63443 +#include <linux/grsecurity.h>
63444 #include <linux/proc_fs.h>
63445 #include <linux/ioport.h>
63446 #include <linux/uaccess.h>
63447 @@ -356,6 +357,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
63448 seq_putc(m, '\n');
63449 }
63450
63451 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
63452 +static inline void task_pax(struct seq_file *m, struct task_struct *p)
63453 +{
63454 + if (p->mm)
63455 + seq_printf(m, "PaX:\t%c%c%c%c%c\n",
63456 + p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
63457 + p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
63458 + p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
63459 + p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
63460 + p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
63461 + else
63462 + seq_printf(m, "PaX:\t-----\n");
63463 +}
63464 +#endif
63465 +
63466 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
63467 struct pid *pid, struct task_struct *task)
63468 {
63469 @@ -374,9 +390,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
63470 task_cpus_allowed(m, task);
63471 cpuset_task_status_allowed(m, task);
63472 task_context_switch_counts(m, task);
63473 +
63474 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
63475 + task_pax(m, task);
63476 +#endif
63477 +
63478 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
63479 + task_grsec_rbac(m, task);
63480 +#endif
63481 +
63482 return 0;
63483 }
63484
63485 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63486 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
63487 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
63488 + _mm->pax_flags & MF_PAX_SEGMEXEC))
63489 +#endif
63490 +
63491 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
63492 struct pid *pid, struct task_struct *task, int whole)
63493 {
63494 @@ -398,6 +429,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
63495 char tcomm[sizeof(task->comm)];
63496 unsigned long flags;
63497
63498 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63499 + if (current->exec_id != m->exec_id) {
63500 + gr_log_badprocpid("stat");
63501 + return 0;
63502 + }
63503 +#endif
63504 +
63505 state = *get_task_state(task);
63506 vsize = eip = esp = 0;
63507 permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
63508 @@ -468,6 +506,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
63509 gtime = task_gtime(task);
63510 }
63511
63512 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63513 + if (PAX_RAND_FLAGS(mm)) {
63514 + eip = 0;
63515 + esp = 0;
63516 + wchan = 0;
63517 + }
63518 +#endif
63519 +#ifdef CONFIG_GRKERNSEC_HIDESYM
63520 + wchan = 0;
63521 + eip =0;
63522 + esp =0;
63523 +#endif
63524 +
63525 /* scale priority and nice values from timeslices to -20..20 */
63526 /* to make it look like a "normal" Unix priority/nice value */
63527 priority = task_prio(task);
63528 @@ -504,9 +555,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
63529 seq_put_decimal_ull(m, ' ', vsize);
63530 seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
63531 seq_put_decimal_ull(m, ' ', rsslim);
63532 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63533 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
63534 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
63535 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
63536 +#else
63537 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
63538 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
63539 seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
63540 +#endif
63541 seq_put_decimal_ull(m, ' ', esp);
63542 seq_put_decimal_ull(m, ' ', eip);
63543 /* The signal information here is obsolete.
63544 @@ -528,7 +585,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
63545 seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
63546 seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
63547
63548 - if (mm && permitted) {
63549 + if (mm && permitted
63550 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63551 + && !PAX_RAND_FLAGS(mm)
63552 +#endif
63553 + ) {
63554 seq_put_decimal_ull(m, ' ', mm->start_data);
63555 seq_put_decimal_ull(m, ' ', mm->end_data);
63556 seq_put_decimal_ull(m, ' ', mm->start_brk);
63557 @@ -566,8 +627,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
63558 struct pid *pid, struct task_struct *task)
63559 {
63560 unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
63561 - struct mm_struct *mm = get_task_mm(task);
63562 + struct mm_struct *mm;
63563
63564 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63565 + if (current->exec_id != m->exec_id) {
63566 + gr_log_badprocpid("statm");
63567 + return 0;
63568 + }
63569 +#endif
63570 + mm = get_task_mm(task);
63571 if (mm) {
63572 size = task_statm(mm, &shared, &text, &data, &resident);
63573 mmput(mm);
63574 @@ -590,6 +658,13 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
63575 return 0;
63576 }
63577
63578 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
63579 +int proc_pid_ipaddr(struct task_struct *task, char *buffer)
63580 +{
63581 + return sprintf(buffer, "%pI4\n", &task->signal->curr_ip);
63582 +}
63583 +#endif
63584 +
63585 #ifdef CONFIG_CHECKPOINT_RESTORE
63586 static struct pid *
63587 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
63588 diff --git a/fs/proc/base.c b/fs/proc/base.c
63589 index 2d696b0..b9da447 100644
63590 --- a/fs/proc/base.c
63591 +++ b/fs/proc/base.c
63592 @@ -113,6 +113,14 @@ struct pid_entry {
63593 union proc_op op;
63594 };
63595
63596 +struct getdents_callback {
63597 + struct linux_dirent __user * current_dir;
63598 + struct linux_dirent __user * previous;
63599 + struct file * file;
63600 + int count;
63601 + int error;
63602 +};
63603 +
63604 #define NOD(NAME, MODE, IOP, FOP, OP) { \
63605 .name = (NAME), \
63606 .len = sizeof(NAME) - 1, \
63607 @@ -205,12 +213,28 @@ static int proc_pid_cmdline(struct task_struct *task, char *buffer)
63608 return get_cmdline(task, buffer, PAGE_SIZE);
63609 }
63610
63611 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63612 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
63613 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
63614 + _mm->pax_flags & MF_PAX_SEGMEXEC))
63615 +#endif
63616 +
63617 static int proc_pid_auxv(struct task_struct *task, char *buffer)
63618 {
63619 struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
63620 int res = PTR_ERR(mm);
63621 if (mm && !IS_ERR(mm)) {
63622 unsigned int nwords = 0;
63623 +
63624 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63625 + /* allow if we're currently ptracing this task */
63626 + if (PAX_RAND_FLAGS(mm) &&
63627 + (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
63628 + mmput(mm);
63629 + return 0;
63630 + }
63631 +#endif
63632 +
63633 do {
63634 nwords += 2;
63635 } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
63636 @@ -224,7 +248,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
63637 }
63638
63639
63640 -#ifdef CONFIG_KALLSYMS
63641 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63642 /*
63643 * Provides a wchan file via kallsyms in a proper one-value-per-file format.
63644 * Returns the resolved symbol. If that fails, simply return the address.
63645 @@ -263,7 +287,7 @@ static void unlock_trace(struct task_struct *task)
63646 mutex_unlock(&task->signal->cred_guard_mutex);
63647 }
63648
63649 -#ifdef CONFIG_STACKTRACE
63650 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63651
63652 #define MAX_STACK_TRACE_DEPTH 64
63653
63654 @@ -486,7 +510,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer)
63655 return count;
63656 }
63657
63658 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
63659 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
63660 static int proc_pid_syscall(struct task_struct *task, char *buffer)
63661 {
63662 long nr;
63663 @@ -515,7 +539,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
63664 /************************************************************************/
63665
63666 /* permission checks */
63667 -static int proc_fd_access_allowed(struct inode *inode)
63668 +static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
63669 {
63670 struct task_struct *task;
63671 int allowed = 0;
63672 @@ -525,7 +549,10 @@ static int proc_fd_access_allowed(struct inode *inode)
63673 */
63674 task = get_proc_task(inode);
63675 if (task) {
63676 - allowed = ptrace_may_access(task, PTRACE_MODE_READ);
63677 + if (log)
63678 + allowed = ptrace_may_access(task, PTRACE_MODE_READ);
63679 + else
63680 + allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
63681 put_task_struct(task);
63682 }
63683 return allowed;
63684 @@ -556,10 +583,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
63685 struct task_struct *task,
63686 int hide_pid_min)
63687 {
63688 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
63689 + return false;
63690 +
63691 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63692 + rcu_read_lock();
63693 + {
63694 + const struct cred *tmpcred = current_cred();
63695 + const struct cred *cred = __task_cred(task);
63696 +
63697 + if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
63698 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
63699 + || in_group_p(grsec_proc_gid)
63700 +#endif
63701 + ) {
63702 + rcu_read_unlock();
63703 + return true;
63704 + }
63705 + }
63706 + rcu_read_unlock();
63707 +
63708 + if (!pid->hide_pid)
63709 + return false;
63710 +#endif
63711 +
63712 if (pid->hide_pid < hide_pid_min)
63713 return true;
63714 if (in_group_p(pid->pid_gid))
63715 return true;
63716 +
63717 return ptrace_may_access(task, PTRACE_MODE_READ);
63718 }
63719
63720 @@ -577,7 +629,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
63721 put_task_struct(task);
63722
63723 if (!has_perms) {
63724 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63725 + {
63726 +#else
63727 if (pid->hide_pid == 2) {
63728 +#endif
63729 /*
63730 * Let's make getdents(), stat(), and open()
63731 * consistent with each other. If a process
63732 @@ -675,6 +731,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
63733 if (!task)
63734 return -ESRCH;
63735
63736 + if (gr_acl_handle_procpidmem(task)) {
63737 + put_task_struct(task);
63738 + return -EPERM;
63739 + }
63740 +
63741 mm = mm_access(task, mode);
63742 put_task_struct(task);
63743
63744 @@ -690,6 +751,10 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
63745
63746 file->private_data = mm;
63747
63748 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63749 + file->f_version = current->exec_id;
63750 +#endif
63751 +
63752 return 0;
63753 }
63754
63755 @@ -711,6 +776,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
63756 ssize_t copied;
63757 char *page;
63758
63759 +#ifdef CONFIG_GRKERNSEC
63760 + if (write)
63761 + return -EPERM;
63762 +#endif
63763 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63764 + if (file->f_version != current->exec_id) {
63765 + gr_log_badprocpid("mem");
63766 + return 0;
63767 + }
63768 +#endif
63769 +
63770 if (!mm)
63771 return 0;
63772
63773 @@ -723,7 +799,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
63774 goto free;
63775
63776 while (count > 0) {
63777 - int this_len = min_t(int, count, PAGE_SIZE);
63778 + ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
63779
63780 if (write && copy_from_user(page, buf, this_len)) {
63781 copied = -EFAULT;
63782 @@ -815,6 +891,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
63783 if (!mm)
63784 return 0;
63785
63786 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63787 + if (file->f_version != current->exec_id) {
63788 + gr_log_badprocpid("environ");
63789 + return 0;
63790 + }
63791 +#endif
63792 +
63793 page = (char *)__get_free_page(GFP_TEMPORARY);
63794 if (!page)
63795 return -ENOMEM;
63796 @@ -824,7 +907,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
63797 goto free;
63798 while (count > 0) {
63799 size_t this_len, max_len;
63800 - int retval;
63801 + ssize_t retval;
63802
63803 if (src >= (mm->env_end - mm->env_start))
63804 break;
63805 @@ -1438,7 +1521,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
63806 int error = -EACCES;
63807
63808 /* Are we allowed to snoop on the tasks file descriptors? */
63809 - if (!proc_fd_access_allowed(inode))
63810 + if (!proc_fd_access_allowed(inode, 0))
63811 goto out;
63812
63813 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
63814 @@ -1482,8 +1565,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
63815 struct path path;
63816
63817 /* Are we allowed to snoop on the tasks file descriptors? */
63818 - if (!proc_fd_access_allowed(inode))
63819 - goto out;
63820 + /* logging this is needed for learning on chromium to work properly,
63821 + but we don't want to flood the logs from 'ps' which does a readlink
63822 + on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
63823 + CAP_SYS_PTRACE as it's not necessary for its basic functionality
63824 + */
63825 + if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
63826 + if (!proc_fd_access_allowed(inode,0))
63827 + goto out;
63828 + } else {
63829 + if (!proc_fd_access_allowed(inode,1))
63830 + goto out;
63831 + }
63832
63833 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
63834 if (error)
63835 @@ -1533,7 +1626,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
63836 rcu_read_lock();
63837 cred = __task_cred(task);
63838 inode->i_uid = cred->euid;
63839 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
63840 + inode->i_gid = grsec_proc_gid;
63841 +#else
63842 inode->i_gid = cred->egid;
63843 +#endif
63844 rcu_read_unlock();
63845 }
63846 security_task_to_inode(task, inode);
63847 @@ -1569,10 +1666,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
63848 return -ENOENT;
63849 }
63850 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
63851 +#ifdef CONFIG_GRKERNSEC_PROC_USER
63852 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
63853 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63854 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
63855 +#endif
63856 task_dumpable(task)) {
63857 cred = __task_cred(task);
63858 stat->uid = cred->euid;
63859 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
63860 + stat->gid = grsec_proc_gid;
63861 +#else
63862 stat->gid = cred->egid;
63863 +#endif
63864 }
63865 }
63866 rcu_read_unlock();
63867 @@ -1610,11 +1716,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
63868
63869 if (task) {
63870 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
63871 +#ifdef CONFIG_GRKERNSEC_PROC_USER
63872 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
63873 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63874 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
63875 +#endif
63876 task_dumpable(task)) {
63877 rcu_read_lock();
63878 cred = __task_cred(task);
63879 inode->i_uid = cred->euid;
63880 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
63881 + inode->i_gid = grsec_proc_gid;
63882 +#else
63883 inode->i_gid = cred->egid;
63884 +#endif
63885 rcu_read_unlock();
63886 } else {
63887 inode->i_uid = GLOBAL_ROOT_UID;
63888 @@ -2149,6 +2264,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
63889 if (!task)
63890 goto out_no_task;
63891
63892 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
63893 + goto out;
63894 +
63895 /*
63896 * Yes, it does not scale. And it should not. Don't add
63897 * new entries into /proc/<tgid>/ without very good reasons.
63898 @@ -2179,6 +2297,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
63899 if (!task)
63900 return -ENOENT;
63901
63902 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
63903 + goto out;
63904 +
63905 if (!dir_emit_dots(file, ctx))
63906 goto out;
63907
63908 @@ -2568,7 +2689,7 @@ static const struct pid_entry tgid_base_stuff[] = {
63909 REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
63910 #endif
63911 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
63912 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
63913 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
63914 INF("syscall", S_IRUSR, proc_pid_syscall),
63915 #endif
63916 INF("cmdline", S_IRUGO, proc_pid_cmdline),
63917 @@ -2593,10 +2714,10 @@ static const struct pid_entry tgid_base_stuff[] = {
63918 #ifdef CONFIG_SECURITY
63919 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
63920 #endif
63921 -#ifdef CONFIG_KALLSYMS
63922 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63923 INF("wchan", S_IRUGO, proc_pid_wchan),
63924 #endif
63925 -#ifdef CONFIG_STACKTRACE
63926 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63927 ONE("stack", S_IRUSR, proc_pid_stack),
63928 #endif
63929 #ifdef CONFIG_SCHEDSTATS
63930 @@ -2630,6 +2751,9 @@ static const struct pid_entry tgid_base_stuff[] = {
63931 #ifdef CONFIG_HARDWALL
63932 INF("hardwall", S_IRUGO, proc_pid_hardwall),
63933 #endif
63934 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
63935 + INF("ipaddr", S_IRUSR, proc_pid_ipaddr),
63936 +#endif
63937 #ifdef CONFIG_USER_NS
63938 REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
63939 REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
63940 @@ -2760,7 +2884,14 @@ static int proc_pid_instantiate(struct inode *dir,
63941 if (!inode)
63942 goto out;
63943
63944 +#ifdef CONFIG_GRKERNSEC_PROC_USER
63945 + inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
63946 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63947 + inode->i_gid = grsec_proc_gid;
63948 + inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
63949 +#else
63950 inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
63951 +#endif
63952 inode->i_op = &proc_tgid_base_inode_operations;
63953 inode->i_fop = &proc_tgid_base_operations;
63954 inode->i_flags|=S_IMMUTABLE;
63955 @@ -2798,7 +2929,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
63956 if (!task)
63957 goto out;
63958
63959 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
63960 + goto out_put_task;
63961 +
63962 result = proc_pid_instantiate(dir, dentry, task, NULL);
63963 +out_put_task:
63964 put_task_struct(task);
63965 out:
63966 return ERR_PTR(result);
63967 @@ -2904,7 +3039,7 @@ static const struct pid_entry tid_base_stuff[] = {
63968 REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
63969 #endif
63970 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
63971 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
63972 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
63973 INF("syscall", S_IRUSR, proc_pid_syscall),
63974 #endif
63975 INF("cmdline", S_IRUGO, proc_pid_cmdline),
63976 @@ -2931,10 +3066,10 @@ static const struct pid_entry tid_base_stuff[] = {
63977 #ifdef CONFIG_SECURITY
63978 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
63979 #endif
63980 -#ifdef CONFIG_KALLSYMS
63981 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63982 INF("wchan", S_IRUGO, proc_pid_wchan),
63983 #endif
63984 -#ifdef CONFIG_STACKTRACE
63985 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
63986 ONE("stack", S_IRUSR, proc_pid_stack),
63987 #endif
63988 #ifdef CONFIG_SCHEDSTATS
63989 diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
63990 index cbd82df..c0407d2 100644
63991 --- a/fs/proc/cmdline.c
63992 +++ b/fs/proc/cmdline.c
63993 @@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
63994
63995 static int __init proc_cmdline_init(void)
63996 {
63997 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
63998 + proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
63999 +#else
64000 proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
64001 +#endif
64002 return 0;
64003 }
64004 fs_initcall(proc_cmdline_init);
64005 diff --git a/fs/proc/devices.c b/fs/proc/devices.c
64006 index 50493ed..248166b 100644
64007 --- a/fs/proc/devices.c
64008 +++ b/fs/proc/devices.c
64009 @@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
64010
64011 static int __init proc_devices_init(void)
64012 {
64013 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
64014 + proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
64015 +#else
64016 proc_create("devices", 0, NULL, &proc_devinfo_operations);
64017 +#endif
64018 return 0;
64019 }
64020 fs_initcall(proc_devices_init);
64021 diff --git a/fs/proc/fd.c b/fs/proc/fd.c
64022 index 0788d09..9cc1385 100644
64023 --- a/fs/proc/fd.c
64024 +++ b/fs/proc/fd.c
64025 @@ -26,7 +26,8 @@ static int seq_show(struct seq_file *m, void *v)
64026 if (!task)
64027 return -ENOENT;
64028
64029 - files = get_files_struct(task);
64030 + if (!gr_acl_handle_procpidmem(task))
64031 + files = get_files_struct(task);
64032 put_task_struct(task);
64033
64034 if (files) {
64035 @@ -285,11 +286,21 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
64036 */
64037 int proc_fd_permission(struct inode *inode, int mask)
64038 {
64039 + struct task_struct *task;
64040 int rv = generic_permission(inode, mask);
64041 - if (rv == 0)
64042 - return 0;
64043 +
64044 if (task_tgid(current) == proc_pid(inode))
64045 rv = 0;
64046 +
64047 + task = get_proc_task(inode);
64048 + if (task == NULL)
64049 + return rv;
64050 +
64051 + if (gr_acl_handle_procpidmem(task))
64052 + rv = -EACCES;
64053 +
64054 + put_task_struct(task);
64055 +
64056 return rv;
64057 }
64058
64059 diff --git a/fs/proc/generic.c b/fs/proc/generic.c
64060 index b7f268e..3bea6b7 100644
64061 --- a/fs/proc/generic.c
64062 +++ b/fs/proc/generic.c
64063 @@ -23,6 +23,7 @@
64064 #include <linux/bitops.h>
64065 #include <linux/spinlock.h>
64066 #include <linux/completion.h>
64067 +#include <linux/grsecurity.h>
64068 #include <asm/uaccess.h>
64069
64070 #include "internal.h"
64071 @@ -207,6 +208,15 @@ struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,
64072 return proc_lookup_de(PDE(dir), dir, dentry);
64073 }
64074
64075 +struct dentry *proc_lookup_restrict(struct inode *dir, struct dentry *dentry,
64076 + unsigned int flags)
64077 +{
64078 + if (gr_proc_is_restricted())
64079 + return ERR_PTR(-EACCES);
64080 +
64081 + return proc_lookup_de(PDE(dir), dir, dentry);
64082 +}
64083 +
64084 /*
64085 * This returns non-zero if at EOF, so that the /proc
64086 * root directory can use this and check if it should
64087 @@ -264,6 +274,16 @@ int proc_readdir(struct file *file, struct dir_context *ctx)
64088 return proc_readdir_de(PDE(inode), file, ctx);
64089 }
64090
64091 +int proc_readdir_restrict(struct file *file, struct dir_context *ctx)
64092 +{
64093 + struct inode *inode = file_inode(file);
64094 +
64095 + if (gr_proc_is_restricted())
64096 + return -EACCES;
64097 +
64098 + return proc_readdir_de(PDE(inode), file, ctx);
64099 +}
64100 +
64101 /*
64102 * These are the generic /proc directory operations. They
64103 * use the in-memory "struct proc_dir_entry" tree to parse
64104 @@ -275,6 +295,12 @@ static const struct file_operations proc_dir_operations = {
64105 .iterate = proc_readdir,
64106 };
64107
64108 +static const struct file_operations proc_dir_restricted_operations = {
64109 + .llseek = generic_file_llseek,
64110 + .read = generic_read_dir,
64111 + .iterate = proc_readdir_restrict,
64112 +};
64113 +
64114 /*
64115 * proc directories can do almost nothing..
64116 */
64117 @@ -284,6 +310,12 @@ static const struct inode_operations proc_dir_inode_operations = {
64118 .setattr = proc_notify_change,
64119 };
64120
64121 +static const struct inode_operations proc_dir_restricted_inode_operations = {
64122 + .lookup = proc_lookup_restrict,
64123 + .getattr = proc_getattr,
64124 + .setattr = proc_notify_change,
64125 +};
64126 +
64127 static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
64128 {
64129 struct proc_dir_entry *tmp;
64130 @@ -294,8 +326,13 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
64131 return ret;
64132
64133 if (S_ISDIR(dp->mode)) {
64134 - dp->proc_fops = &proc_dir_operations;
64135 - dp->proc_iops = &proc_dir_inode_operations;
64136 + if (dp->restricted) {
64137 + dp->proc_fops = &proc_dir_restricted_operations;
64138 + dp->proc_iops = &proc_dir_restricted_inode_operations;
64139 + } else {
64140 + dp->proc_fops = &proc_dir_operations;
64141 + dp->proc_iops = &proc_dir_inode_operations;
64142 + }
64143 dir->nlink++;
64144 } else if (S_ISLNK(dp->mode)) {
64145 dp->proc_iops = &proc_link_inode_operations;
64146 @@ -407,6 +444,27 @@ struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode,
64147 }
64148 EXPORT_SYMBOL_GPL(proc_mkdir_data);
64149
64150 +struct proc_dir_entry *proc_mkdir_data_restrict(const char *name, umode_t mode,
64151 + struct proc_dir_entry *parent, void *data)
64152 +{
64153 + struct proc_dir_entry *ent;
64154 +
64155 + if (mode == 0)
64156 + mode = S_IRUGO | S_IXUGO;
64157 +
64158 + ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
64159 + if (ent) {
64160 + ent->data = data;
64161 + ent->restricted = 1;
64162 + if (proc_register(parent, ent) < 0) {
64163 + kfree(ent);
64164 + ent = NULL;
64165 + }
64166 + }
64167 + return ent;
64168 +}
64169 +EXPORT_SYMBOL_GPL(proc_mkdir_data_restrict);
64170 +
64171 struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
64172 struct proc_dir_entry *parent)
64173 {
64174 @@ -421,6 +479,13 @@ struct proc_dir_entry *proc_mkdir(const char *name,
64175 }
64176 EXPORT_SYMBOL(proc_mkdir);
64177
64178 +struct proc_dir_entry *proc_mkdir_restrict(const char *name,
64179 + struct proc_dir_entry *parent)
64180 +{
64181 + return proc_mkdir_data_restrict(name, 0, parent, NULL);
64182 +}
64183 +EXPORT_SYMBOL(proc_mkdir_restrict);
64184 +
64185 struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
64186 struct proc_dir_entry *parent,
64187 const struct file_operations *proc_fops,
64188 diff --git a/fs/proc/inode.c b/fs/proc/inode.c
64189 index 0adbc02..bee4d0b 100644
64190 --- a/fs/proc/inode.c
64191 +++ b/fs/proc/inode.c
64192 @@ -23,11 +23,17 @@
64193 #include <linux/slab.h>
64194 #include <linux/mount.h>
64195 #include <linux/magic.h>
64196 +#include <linux/grsecurity.h>
64197
64198 #include <asm/uaccess.h>
64199
64200 #include "internal.h"
64201
64202 +#ifdef CONFIG_PROC_SYSCTL
64203 +extern const struct inode_operations proc_sys_inode_operations;
64204 +extern const struct inode_operations proc_sys_dir_operations;
64205 +#endif
64206 +
64207 static void proc_evict_inode(struct inode *inode)
64208 {
64209 struct proc_dir_entry *de;
64210 @@ -55,6 +61,13 @@ static void proc_evict_inode(struct inode *inode)
64211 ns = PROC_I(inode)->ns.ns;
64212 if (ns_ops && ns)
64213 ns_ops->put(ns);
64214 +
64215 +#ifdef CONFIG_PROC_SYSCTL
64216 + if (inode->i_op == &proc_sys_inode_operations ||
64217 + inode->i_op == &proc_sys_dir_operations)
64218 + gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
64219 +#endif
64220 +
64221 }
64222
64223 static struct kmem_cache * proc_inode_cachep;
64224 @@ -413,7 +426,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
64225 if (de->mode) {
64226 inode->i_mode = de->mode;
64227 inode->i_uid = de->uid;
64228 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
64229 + inode->i_gid = grsec_proc_gid;
64230 +#else
64231 inode->i_gid = de->gid;
64232 +#endif
64233 }
64234 if (de->size)
64235 inode->i_size = de->size;
64236 diff --git a/fs/proc/internal.h b/fs/proc/internal.h
64237 index 3ab6d14..b26174e 100644
64238 --- a/fs/proc/internal.h
64239 +++ b/fs/proc/internal.h
64240 @@ -46,9 +46,10 @@ struct proc_dir_entry {
64241 struct completion *pde_unload_completion;
64242 struct list_head pde_openers; /* who did ->open, but not ->release */
64243 spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
64244 + u8 restricted; /* a directory in /proc/net that should be restricted via GRKERNSEC_PROC */
64245 u8 namelen;
64246 char name[];
64247 -};
64248 +} __randomize_layout;
64249
64250 union proc_op {
64251 int (*proc_get_link)(struct dentry *, struct path *);
64252 @@ -67,7 +68,7 @@ struct proc_inode {
64253 struct ctl_table *sysctl_entry;
64254 struct proc_ns ns;
64255 struct inode vfs_inode;
64256 -};
64257 +} __randomize_layout;
64258
64259 /*
64260 * General functions
64261 @@ -155,6 +156,9 @@ extern int proc_pid_status(struct seq_file *, struct pid_namespace *,
64262 struct pid *, struct task_struct *);
64263 extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
64264 struct pid *, struct task_struct *);
64265 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
64266 +extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
64267 +#endif
64268
64269 /*
64270 * base.c
64271 @@ -181,9 +185,11 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
64272 extern spinlock_t proc_subdir_lock;
64273
64274 extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
64275 +extern struct dentry *proc_lookup_restrict(struct inode *, struct dentry *, unsigned int);
64276 extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
64277 struct dentry *);
64278 extern int proc_readdir(struct file *, struct dir_context *);
64279 +extern int proc_readdir_restrict(struct file *, struct dir_context *);
64280 extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *);
64281
64282 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
64283 diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
64284 index a352d57..cb94a5c 100644
64285 --- a/fs/proc/interrupts.c
64286 +++ b/fs/proc/interrupts.c
64287 @@ -47,7 +47,11 @@ static const struct file_operations proc_interrupts_operations = {
64288
64289 static int __init proc_interrupts_init(void)
64290 {
64291 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
64292 + proc_create_grsec("interrupts", 0, NULL, &proc_interrupts_operations);
64293 +#else
64294 proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
64295 +#endif
64296 return 0;
64297 }
64298 fs_initcall(proc_interrupts_init);
64299 diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
64300 index 39e6ef3..2f9cb5e 100644
64301 --- a/fs/proc/kcore.c
64302 +++ b/fs/proc/kcore.c
64303 @@ -483,9 +483,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
64304 * the addresses in the elf_phdr on our list.
64305 */
64306 start = kc_offset_to_vaddr(*fpos - elf_buflen);
64307 - if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
64308 + tsz = PAGE_SIZE - (start & ~PAGE_MASK);
64309 + if (tsz > buflen)
64310 tsz = buflen;
64311 -
64312 +
64313 while (buflen) {
64314 struct kcore_list *m;
64315
64316 @@ -514,20 +515,23 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
64317 kfree(elf_buf);
64318 } else {
64319 if (kern_addr_valid(start)) {
64320 - unsigned long n;
64321 + char *elf_buf;
64322 + mm_segment_t oldfs;
64323
64324 - n = copy_to_user(buffer, (char *)start, tsz);
64325 - /*
64326 - * We cannot distinguish between fault on source
64327 - * and fault on destination. When this happens
64328 - * we clear too and hope it will trigger the
64329 - * EFAULT again.
64330 - */
64331 - if (n) {
64332 - if (clear_user(buffer + tsz - n,
64333 - n))
64334 + elf_buf = kmalloc(tsz, GFP_KERNEL);
64335 + if (!elf_buf)
64336 + return -ENOMEM;
64337 + oldfs = get_fs();
64338 + set_fs(KERNEL_DS);
64339 + if (!__copy_from_user(elf_buf, (const void __user *)start, tsz)) {
64340 + set_fs(oldfs);
64341 + if (copy_to_user(buffer, elf_buf, tsz)) {
64342 + kfree(elf_buf);
64343 return -EFAULT;
64344 + }
64345 }
64346 + set_fs(oldfs);
64347 + kfree(elf_buf);
64348 } else {
64349 if (clear_user(buffer, tsz))
64350 return -EFAULT;
64351 @@ -547,6 +551,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
64352
64353 static int open_kcore(struct inode *inode, struct file *filp)
64354 {
64355 +#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
64356 + return -EPERM;
64357 +#endif
64358 if (!capable(CAP_SYS_RAWIO))
64359 return -EPERM;
64360 if (kcore_need_update)
64361 diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
64362 index 7445af0..7c5113c 100644
64363 --- a/fs/proc/meminfo.c
64364 +++ b/fs/proc/meminfo.c
64365 @@ -187,7 +187,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
64366 vmi.used >> 10,
64367 vmi.largest_chunk >> 10
64368 #ifdef CONFIG_MEMORY_FAILURE
64369 - ,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
64370 + ,atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
64371 #endif
64372 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
64373 ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
64374 diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
64375 index d4a3574..b421ce9 100644
64376 --- a/fs/proc/nommu.c
64377 +++ b/fs/proc/nommu.c
64378 @@ -64,7 +64,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
64379
64380 if (file) {
64381 seq_pad(m, ' ');
64382 - seq_path(m, &file->f_path, "");
64383 + seq_path(m, &file->f_path, "\n\\");
64384 }
64385
64386 seq_putc(m, '\n');
64387 diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
64388 index 4677bb7..dad3045 100644
64389 --- a/fs/proc/proc_net.c
64390 +++ b/fs/proc/proc_net.c
64391 @@ -23,9 +23,27 @@
64392 #include <linux/nsproxy.h>
64393 #include <net/net_namespace.h>
64394 #include <linux/seq_file.h>
64395 +#include <linux/grsecurity.h>
64396
64397 #include "internal.h"
64398
64399 +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
64400 +static struct seq_operations *ipv6_seq_ops_addr;
64401 +
64402 +void register_ipv6_seq_ops_addr(struct seq_operations *addr)
64403 +{
64404 + ipv6_seq_ops_addr = addr;
64405 +}
64406 +
64407 +void unregister_ipv6_seq_ops_addr(void)
64408 +{
64409 + ipv6_seq_ops_addr = NULL;
64410 +}
64411 +
64412 +EXPORT_SYMBOL_GPL(register_ipv6_seq_ops_addr);
64413 +EXPORT_SYMBOL_GPL(unregister_ipv6_seq_ops_addr);
64414 +#endif
64415 +
64416 static inline struct net *PDE_NET(struct proc_dir_entry *pde)
64417 {
64418 return pde->parent->data;
64419 @@ -36,6 +54,8 @@ static struct net *get_proc_net(const struct inode *inode)
64420 return maybe_get_net(PDE_NET(PDE(inode)));
64421 }
64422
64423 +extern const struct seq_operations dev_seq_ops;
64424 +
64425 int seq_open_net(struct inode *ino, struct file *f,
64426 const struct seq_operations *ops, int size)
64427 {
64428 @@ -44,6 +64,14 @@ int seq_open_net(struct inode *ino, struct file *f,
64429
64430 BUG_ON(size < sizeof(*p));
64431
64432 + /* only permit access to /proc/net/dev */
64433 + if (
64434 +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
64435 + ops != ipv6_seq_ops_addr &&
64436 +#endif
64437 + ops != &dev_seq_ops && gr_proc_is_restricted())
64438 + return -EACCES;
64439 +
64440 net = get_proc_net(ino);
64441 if (net == NULL)
64442 return -ENXIO;
64443 @@ -66,6 +94,9 @@ int single_open_net(struct inode *inode, struct file *file,
64444 int err;
64445 struct net *net;
64446
64447 + if (gr_proc_is_restricted())
64448 + return -EACCES;
64449 +
64450 err = -ENXIO;
64451 net = get_proc_net(inode);
64452 if (net == NULL)
64453 diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
64454 index 7129046..6914844 100644
64455 --- a/fs/proc/proc_sysctl.c
64456 +++ b/fs/proc/proc_sysctl.c
64457 @@ -11,13 +11,21 @@
64458 #include <linux/namei.h>
64459 #include <linux/mm.h>
64460 #include <linux/module.h>
64461 +#include <linux/nsproxy.h>
64462 +#ifdef CONFIG_GRKERNSEC
64463 +#include <net/net_namespace.h>
64464 +#endif
64465 #include "internal.h"
64466
64467 +extern int gr_handle_chroot_sysctl(const int op);
64468 +extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
64469 + const int op);
64470 +
64471 static const struct dentry_operations proc_sys_dentry_operations;
64472 static const struct file_operations proc_sys_file_operations;
64473 -static const struct inode_operations proc_sys_inode_operations;
64474 +const struct inode_operations proc_sys_inode_operations;
64475 static const struct file_operations proc_sys_dir_file_operations;
64476 -static const struct inode_operations proc_sys_dir_operations;
64477 +const struct inode_operations proc_sys_dir_operations;
64478
64479 void proc_sys_poll_notify(struct ctl_table_poll *poll)
64480 {
64481 @@ -467,6 +475,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
64482
64483 err = NULL;
64484 d_set_d_op(dentry, &proc_sys_dentry_operations);
64485 +
64486 + gr_handle_proc_create(dentry, inode);
64487 +
64488 d_add(dentry, inode);
64489
64490 out:
64491 @@ -482,6 +493,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
64492 struct inode *inode = file_inode(filp);
64493 struct ctl_table_header *head = grab_header(inode);
64494 struct ctl_table *table = PROC_I(inode)->sysctl_entry;
64495 + int op = write ? MAY_WRITE : MAY_READ;
64496 ssize_t error;
64497 size_t res;
64498
64499 @@ -493,7 +505,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
64500 * and won't be until we finish.
64501 */
64502 error = -EPERM;
64503 - if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
64504 + if (sysctl_perm(head, table, op))
64505 goto out;
64506
64507 /* if that can happen at all, it should be -EINVAL, not -EISDIR */
64508 @@ -501,6 +513,27 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
64509 if (!table->proc_handler)
64510 goto out;
64511
64512 +#ifdef CONFIG_GRKERNSEC
64513 + error = -EPERM;
64514 + if (gr_handle_chroot_sysctl(op))
64515 + goto out;
64516 + dget(filp->f_path.dentry);
64517 + if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
64518 + dput(filp->f_path.dentry);
64519 + goto out;
64520 + }
64521 + dput(filp->f_path.dentry);
64522 + if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
64523 + goto out;
64524 + if (write) {
64525 + if (current->nsproxy->net_ns != table->extra2) {
64526 + if (!capable(CAP_SYS_ADMIN))
64527 + goto out;
64528 + } else if (!ns_capable(current->nsproxy->net_ns->user_ns, CAP_NET_ADMIN))
64529 + goto out;
64530 + }
64531 +#endif
64532 +
64533 /* careful: calling conventions are nasty here */
64534 res = count;
64535 error = table->proc_handler(table, write, buf, &res, ppos);
64536 @@ -598,6 +631,9 @@ static bool proc_sys_fill_cache(struct file *file,
64537 return false;
64538 } else {
64539 d_set_d_op(child, &proc_sys_dentry_operations);
64540 +
64541 + gr_handle_proc_create(child, inode);
64542 +
64543 d_add(child, inode);
64544 }
64545 } else {
64546 @@ -641,6 +677,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
64547 if ((*pos)++ < ctx->pos)
64548 return true;
64549
64550 + if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
64551 + return 0;
64552 +
64553 if (unlikely(S_ISLNK(table->mode)))
64554 res = proc_sys_link_fill_cache(file, ctx, head, table);
64555 else
64556 @@ -734,6 +773,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
64557 if (IS_ERR(head))
64558 return PTR_ERR(head);
64559
64560 + if (table && !gr_acl_handle_hidden_file(dentry, mnt))
64561 + return -ENOENT;
64562 +
64563 generic_fillattr(inode, stat);
64564 if (table)
64565 stat->mode = (stat->mode & S_IFMT) | table->mode;
64566 @@ -756,13 +798,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
64567 .llseek = generic_file_llseek,
64568 };
64569
64570 -static const struct inode_operations proc_sys_inode_operations = {
64571 +const struct inode_operations proc_sys_inode_operations = {
64572 .permission = proc_sys_permission,
64573 .setattr = proc_sys_setattr,
64574 .getattr = proc_sys_getattr,
64575 };
64576
64577 -static const struct inode_operations proc_sys_dir_operations = {
64578 +const struct inode_operations proc_sys_dir_operations = {
64579 .lookup = proc_sys_lookup,
64580 .permission = proc_sys_permission,
64581 .setattr = proc_sys_setattr,
64582 @@ -839,7 +881,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
64583 static struct ctl_dir *new_dir(struct ctl_table_set *set,
64584 const char *name, int namelen)
64585 {
64586 - struct ctl_table *table;
64587 + ctl_table_no_const *table;
64588 struct ctl_dir *new;
64589 struct ctl_node *node;
64590 char *new_name;
64591 @@ -851,7 +893,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
64592 return NULL;
64593
64594 node = (struct ctl_node *)(new + 1);
64595 - table = (struct ctl_table *)(node + 1);
64596 + table = (ctl_table_no_const *)(node + 1);
64597 new_name = (char *)(table + 2);
64598 memcpy(new_name, name, namelen);
64599 new_name[namelen] = '\0';
64600 @@ -1020,7 +1062,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
64601 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
64602 struct ctl_table_root *link_root)
64603 {
64604 - struct ctl_table *link_table, *entry, *link;
64605 + ctl_table_no_const *link_table, *link;
64606 + struct ctl_table *entry;
64607 struct ctl_table_header *links;
64608 struct ctl_node *node;
64609 char *link_name;
64610 @@ -1043,7 +1086,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
64611 return NULL;
64612
64613 node = (struct ctl_node *)(links + 1);
64614 - link_table = (struct ctl_table *)(node + nr_entries);
64615 + link_table = (ctl_table_no_const *)(node + nr_entries);
64616 link_name = (char *)&link_table[nr_entries + 1];
64617
64618 for (link = link_table, entry = table; entry->procname; link++, entry++) {
64619 @@ -1291,8 +1334,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
64620 struct ctl_table_header ***subheader, struct ctl_table_set *set,
64621 struct ctl_table *table)
64622 {
64623 - struct ctl_table *ctl_table_arg = NULL;
64624 - struct ctl_table *entry, *files;
64625 + ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
64626 + struct ctl_table *entry;
64627 int nr_files = 0;
64628 int nr_dirs = 0;
64629 int err = -ENOMEM;
64630 @@ -1304,10 +1347,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
64631 nr_files++;
64632 }
64633
64634 - files = table;
64635 /* If there are mixed files and directories we need a new table */
64636 if (nr_dirs && nr_files) {
64637 - struct ctl_table *new;
64638 + ctl_table_no_const *new;
64639 files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
64640 GFP_KERNEL);
64641 if (!files)
64642 @@ -1325,7 +1367,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
64643 /* Register everything except a directory full of subdirectories */
64644 if (nr_files || !nr_dirs) {
64645 struct ctl_table_header *header;
64646 - header = __register_sysctl_table(set, path, files);
64647 + header = __register_sysctl_table(set, path, files ? files : table);
64648 if (!header) {
64649 kfree(ctl_table_arg);
64650 goto out;
64651 diff --git a/fs/proc/root.c b/fs/proc/root.c
64652 index 5dbadec..473af2f 100644
64653 --- a/fs/proc/root.c
64654 +++ b/fs/proc/root.c
64655 @@ -185,7 +185,15 @@ void __init proc_root_init(void)
64656 proc_mkdir("openprom", NULL);
64657 #endif
64658 proc_tty_init();
64659 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
64660 +#ifdef CONFIG_GRKERNSEC_PROC_USER
64661 + proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
64662 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
64663 + proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
64664 +#endif
64665 +#else
64666 proc_mkdir("bus", NULL);
64667 +#endif
64668 proc_sys_init();
64669 }
64670
64671 diff --git a/fs/proc/stat.c b/fs/proc/stat.c
64672 index 9d231e9..2e1b51a 100644
64673 --- a/fs/proc/stat.c
64674 +++ b/fs/proc/stat.c
64675 @@ -11,6 +11,7 @@
64676 #include <linux/irqnr.h>
64677 #include <linux/cputime.h>
64678 #include <linux/tick.h>
64679 +#include <linux/grsecurity.h>
64680
64681 #ifndef arch_irq_stat_cpu
64682 #define arch_irq_stat_cpu(cpu) 0
64683 @@ -87,6 +88,18 @@ static int show_stat(struct seq_file *p, void *v)
64684 u64 sum_softirq = 0;
64685 unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
64686 struct timespec boottime;
64687 + int unrestricted = 1;
64688 +
64689 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
64690 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
64691 + if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
64692 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
64693 + && !in_group_p(grsec_proc_gid)
64694 +#endif
64695 + )
64696 + unrestricted = 0;
64697 +#endif
64698 +#endif
64699
64700 user = nice = system = idle = iowait =
64701 irq = softirq = steal = 0;
64702 @@ -99,23 +112,25 @@ static int show_stat(struct seq_file *p, void *v)
64703 nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
64704 system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
64705 idle += get_idle_time(i);
64706 - iowait += get_iowait_time(i);
64707 - irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
64708 - softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
64709 - steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
64710 - guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
64711 - guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
64712 - sum += kstat_cpu_irqs_sum(i);
64713 - sum += arch_irq_stat_cpu(i);
64714 + if (unrestricted) {
64715 + iowait += get_iowait_time(i);
64716 + irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
64717 + softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
64718 + steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
64719 + guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
64720 + guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
64721 + sum += kstat_cpu_irqs_sum(i);
64722 + sum += arch_irq_stat_cpu(i);
64723 + for (j = 0; j < NR_SOFTIRQS; j++) {
64724 + unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
64725
64726 - for (j = 0; j < NR_SOFTIRQS; j++) {
64727 - unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
64728 -
64729 - per_softirq_sums[j] += softirq_stat;
64730 - sum_softirq += softirq_stat;
64731 + per_softirq_sums[j] += softirq_stat;
64732 + sum_softirq += softirq_stat;
64733 + }
64734 }
64735 }
64736 - sum += arch_irq_stat();
64737 + if (unrestricted)
64738 + sum += arch_irq_stat();
64739
64740 seq_puts(p, "cpu ");
64741 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
64742 @@ -136,12 +151,14 @@ static int show_stat(struct seq_file *p, void *v)
64743 nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
64744 system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
64745 idle = get_idle_time(i);
64746 - iowait = get_iowait_time(i);
64747 - irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
64748 - softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
64749 - steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
64750 - guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
64751 - guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
64752 + if (unrestricted) {
64753 + iowait = get_iowait_time(i);
64754 + irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
64755 + softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
64756 + steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
64757 + guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
64758 + guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
64759 + }
64760 seq_printf(p, "cpu%d", i);
64761 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
64762 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
64763 @@ -159,7 +176,7 @@ static int show_stat(struct seq_file *p, void *v)
64764
64765 /* sum again ? it could be updated? */
64766 for_each_irq_nr(j)
64767 - seq_put_decimal_ull(p, ' ', kstat_irqs(j));
64768 + seq_put_decimal_ull(p, ' ', unrestricted ? kstat_irqs(j) : 0ULL);
64769
64770 seq_printf(p,
64771 "\nctxt %llu\n"
64772 @@ -167,11 +184,11 @@ static int show_stat(struct seq_file *p, void *v)
64773 "processes %lu\n"
64774 "procs_running %lu\n"
64775 "procs_blocked %lu\n",
64776 - nr_context_switches(),
64777 + unrestricted ? nr_context_switches() : 0ULL,
64778 (unsigned long)jif,
64779 - total_forks,
64780 - nr_running(),
64781 - nr_iowait());
64782 + unrestricted ? total_forks : 0UL,
64783 + unrestricted ? nr_running() : 0UL,
64784 + unrestricted ? nr_iowait() : 0UL);
64785
64786 seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
64787
64788 diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
64789 index c4b2646..84f0d7b 100644
64790 --- a/fs/proc/task_mmu.c
64791 +++ b/fs/proc/task_mmu.c
64792 @@ -13,12 +13,19 @@
64793 #include <linux/swap.h>
64794 #include <linux/swapops.h>
64795 #include <linux/mmu_notifier.h>
64796 +#include <linux/grsecurity.h>
64797
64798 #include <asm/elf.h>
64799 #include <asm/uaccess.h>
64800 #include <asm/tlbflush.h>
64801 #include "internal.h"
64802
64803 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64804 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
64805 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
64806 + _mm->pax_flags & MF_PAX_SEGMEXEC))
64807 +#endif
64808 +
64809 void task_mem(struct seq_file *m, struct mm_struct *mm)
64810 {
64811 unsigned long data, text, lib, swap;
64812 @@ -54,8 +61,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
64813 "VmExe:\t%8lu kB\n"
64814 "VmLib:\t%8lu kB\n"
64815 "VmPTE:\t%8lu kB\n"
64816 - "VmSwap:\t%8lu kB\n",
64817 - hiwater_vm << (PAGE_SHIFT-10),
64818 + "VmSwap:\t%8lu kB\n"
64819 +
64820 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
64821 + "CsBase:\t%8lx\nCsLim:\t%8lx\n"
64822 +#endif
64823 +
64824 + ,hiwater_vm << (PAGE_SHIFT-10),
64825 total_vm << (PAGE_SHIFT-10),
64826 mm->locked_vm << (PAGE_SHIFT-10),
64827 mm->pinned_vm << (PAGE_SHIFT-10),
64828 @@ -65,7 +77,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
64829 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
64830 (PTRS_PER_PTE * sizeof(pte_t) *
64831 atomic_long_read(&mm->nr_ptes)) >> 10,
64832 - swap << (PAGE_SHIFT-10));
64833 + swap << (PAGE_SHIFT-10)
64834 +
64835 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
64836 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64837 + , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
64838 + , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
64839 +#else
64840 + , mm->context.user_cs_base
64841 + , mm->context.user_cs_limit
64842 +#endif
64843 +#endif
64844 +
64845 + );
64846 }
64847
64848 unsigned long task_vsize(struct mm_struct *mm)
64849 @@ -271,13 +295,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
64850 pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
64851 }
64852
64853 - /* We don't show the stack guard page in /proc/maps */
64854 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64855 + start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
64856 + end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
64857 +#else
64858 start = vma->vm_start;
64859 - if (stack_guard_page_start(vma, start))
64860 - start += PAGE_SIZE;
64861 end = vma->vm_end;
64862 - if (stack_guard_page_end(vma, end))
64863 - end -= PAGE_SIZE;
64864 +#endif
64865
64866 seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
64867 seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
64868 @@ -287,7 +311,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
64869 flags & VM_WRITE ? 'w' : '-',
64870 flags & VM_EXEC ? 'x' : '-',
64871 flags & VM_MAYSHARE ? 's' : 'p',
64872 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64873 + PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
64874 +#else
64875 pgoff,
64876 +#endif
64877 MAJOR(dev), MINOR(dev), ino);
64878
64879 /*
64880 @@ -296,7 +324,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
64881 */
64882 if (file) {
64883 seq_pad(m, ' ');
64884 - seq_path(m, &file->f_path, "\n");
64885 + seq_path(m, &file->f_path, "\n\\");
64886 goto done;
64887 }
64888
64889 @@ -322,8 +350,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
64890 * Thread stack in /proc/PID/task/TID/maps or
64891 * the main process stack.
64892 */
64893 - if (!is_pid || (vma->vm_start <= mm->start_stack &&
64894 - vma->vm_end >= mm->start_stack)) {
64895 + if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
64896 + (vma->vm_start <= mm->start_stack &&
64897 + vma->vm_end >= mm->start_stack)) {
64898 name = "[stack]";
64899 } else {
64900 /* Thread stack in /proc/PID/maps */
64901 @@ -347,6 +376,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid)
64902 struct proc_maps_private *priv = m->private;
64903 struct task_struct *task = priv->task;
64904
64905 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64906 + if (current->exec_id != m->exec_id) {
64907 + gr_log_badprocpid("maps");
64908 + return 0;
64909 + }
64910 +#endif
64911 +
64912 show_map_vma(m, vma, is_pid);
64913
64914 if (m->count < m->size) /* vma is copied successfully */
64915 @@ -587,12 +623,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
64916 .private = &mss,
64917 };
64918
64919 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64920 + if (current->exec_id != m->exec_id) {
64921 + gr_log_badprocpid("smaps");
64922 + return 0;
64923 + }
64924 +#endif
64925 memset(&mss, 0, sizeof mss);
64926 - mss.vma = vma;
64927 - /* mmap_sem is held in m_start */
64928 - if (vma->vm_mm && !is_vm_hugetlb_page(vma))
64929 - walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
64930 -
64931 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64932 + if (!PAX_RAND_FLAGS(vma->vm_mm)) {
64933 +#endif
64934 + mss.vma = vma;
64935 + /* mmap_sem is held in m_start */
64936 + if (vma->vm_mm && !is_vm_hugetlb_page(vma))
64937 + walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
64938 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64939 + }
64940 +#endif
64941 show_map_vma(m, vma, is_pid);
64942
64943 seq_printf(m,
64944 @@ -610,7 +657,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
64945 "KernelPageSize: %8lu kB\n"
64946 "MMUPageSize: %8lu kB\n"
64947 "Locked: %8lu kB\n",
64948 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64949 + PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
64950 +#else
64951 (vma->vm_end - vma->vm_start) >> 10,
64952 +#endif
64953 mss.resident >> 10,
64954 (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
64955 mss.shared_clean >> 10,
64956 @@ -1388,6 +1439,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
64957 char buffer[64];
64958 int nid;
64959
64960 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64961 + if (current->exec_id != m->exec_id) {
64962 + gr_log_badprocpid("numa_maps");
64963 + return 0;
64964 + }
64965 +#endif
64966 +
64967 if (!mm)
64968 return 0;
64969
64970 @@ -1405,11 +1463,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
64971 mpol_to_str(buffer, sizeof(buffer), pol);
64972 mpol_cond_put(pol);
64973
64974 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
64975 + seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
64976 +#else
64977 seq_printf(m, "%08lx %s", vma->vm_start, buffer);
64978 +#endif
64979
64980 if (file) {
64981 seq_printf(m, " file=");
64982 - seq_path(m, &file->f_path, "\n\t= ");
64983 + seq_path(m, &file->f_path, "\n\t\\= ");
64984 } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
64985 seq_printf(m, " heap");
64986 } else {
64987 diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
64988 index 678455d..ebd3245 100644
64989 --- a/fs/proc/task_nommu.c
64990 +++ b/fs/proc/task_nommu.c
64991 @@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
64992 else
64993 bytes += kobjsize(mm);
64994
64995 - if (current->fs && current->fs->users > 1)
64996 + if (current->fs && atomic_read(&current->fs->users) > 1)
64997 sbytes += kobjsize(current->fs);
64998 else
64999 bytes += kobjsize(current->fs);
65000 @@ -161,7 +161,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
65001
65002 if (file) {
65003 seq_pad(m, ' ');
65004 - seq_path(m, &file->f_path, "");
65005 + seq_path(m, &file->f_path, "\n\\");
65006 } else if (mm) {
65007 pid_t tid = vm_is_stack(priv->task, vma, is_pid);
65008
65009 diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
65010 index 6a8e785..41f2a6c 100644
65011 --- a/fs/proc/vmcore.c
65012 +++ b/fs/proc/vmcore.c
65013 @@ -105,9 +105,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
65014 nr_bytes = count;
65015
65016 /* If pfn is not ram, return zeros for sparse dump files */
65017 - if (pfn_is_ram(pfn) == 0)
65018 - memset(buf, 0, nr_bytes);
65019 - else {
65020 + if (pfn_is_ram(pfn) == 0) {
65021 + if (userbuf) {
65022 + if (clear_user((char __force_user *)buf, nr_bytes))
65023 + return -EFAULT;
65024 + } else
65025 + memset(buf, 0, nr_bytes);
65026 + } else {
65027 tmp = copy_oldmem_page(pfn, buf, nr_bytes,
65028 offset, userbuf);
65029 if (tmp < 0)
65030 @@ -170,7 +174,7 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
65031 static int copy_to(void *target, void *src, size_t size, int userbuf)
65032 {
65033 if (userbuf) {
65034 - if (copy_to_user((char __user *) target, src, size))
65035 + if (copy_to_user((char __force_user *) target, src, size))
65036 return -EFAULT;
65037 } else {
65038 memcpy(target, src, size);
65039 @@ -233,7 +237,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
65040 if (*fpos < m->offset + m->size) {
65041 tsz = min_t(size_t, m->offset + m->size - *fpos, buflen);
65042 start = m->paddr + *fpos - m->offset;
65043 - tmp = read_from_oldmem(buffer, tsz, &start, userbuf);
65044 + tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, userbuf);
65045 if (tmp < 0)
65046 return tmp;
65047 buflen -= tsz;
65048 @@ -253,7 +257,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
65049 static ssize_t read_vmcore(struct file *file, char __user *buffer,
65050 size_t buflen, loff_t *fpos)
65051 {
65052 - return __read_vmcore((__force char *) buffer, buflen, fpos, 1);
65053 + return __read_vmcore((__force_kernel char *) buffer, buflen, fpos, 1);
65054 }
65055
65056 /*
65057 diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
65058 index b00fcc9..e0c6381 100644
65059 --- a/fs/qnx6/qnx6.h
65060 +++ b/fs/qnx6/qnx6.h
65061 @@ -74,7 +74,7 @@ enum {
65062 BYTESEX_BE,
65063 };
65064
65065 -static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
65066 +static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
65067 {
65068 if (sbi->s_bytesex == BYTESEX_LE)
65069 return le64_to_cpu((__force __le64)n);
65070 @@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
65071 return (__force __fs64)cpu_to_be64(n);
65072 }
65073
65074 -static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
65075 +static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
65076 {
65077 if (sbi->s_bytesex == BYTESEX_LE)
65078 return le32_to_cpu((__force __le32)n);
65079 diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
65080 index 72d2917..c917c12 100644
65081 --- a/fs/quota/netlink.c
65082 +++ b/fs/quota/netlink.c
65083 @@ -45,7 +45,7 @@ static struct genl_family quota_genl_family = {
65084 void quota_send_warning(struct kqid qid, dev_t dev,
65085 const char warntype)
65086 {
65087 - static atomic_t seq;
65088 + static atomic_unchecked_t seq;
65089 struct sk_buff *skb;
65090 void *msg_head;
65091 int ret;
65092 @@ -61,7 +61,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
65093 "VFS: Not enough memory to send quota warning.\n");
65094 return;
65095 }
65096 - msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
65097 + msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
65098 &quota_genl_family, 0, QUOTA_NL_C_WARNING);
65099 if (!msg_head) {
65100 printk(KERN_ERR
65101 diff --git a/fs/read_write.c b/fs/read_write.c
65102 index 31c6efa..a068805 100644
65103 --- a/fs/read_write.c
65104 +++ b/fs/read_write.c
65105 @@ -450,7 +450,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
65106
65107 old_fs = get_fs();
65108 set_fs(get_ds());
65109 - p = (__force const char __user *)buf;
65110 + p = (const char __force_user *)buf;
65111 if (count > MAX_RW_COUNT)
65112 count = MAX_RW_COUNT;
65113 if (file->f_op->write)
65114 diff --git a/fs/readdir.c b/fs/readdir.c
65115 index 5b53d99..a6c3049 100644
65116 --- a/fs/readdir.c
65117 +++ b/fs/readdir.c
65118 @@ -17,6 +17,7 @@
65119 #include <linux/security.h>
65120 #include <linux/syscalls.h>
65121 #include <linux/unistd.h>
65122 +#include <linux/namei.h>
65123
65124 #include <asm/uaccess.h>
65125
65126 @@ -69,6 +70,7 @@ struct old_linux_dirent {
65127 struct readdir_callback {
65128 struct dir_context ctx;
65129 struct old_linux_dirent __user * dirent;
65130 + struct file * file;
65131 int result;
65132 };
65133
65134 @@ -86,6 +88,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
65135 buf->result = -EOVERFLOW;
65136 return -EOVERFLOW;
65137 }
65138 +
65139 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
65140 + return 0;
65141 +
65142 buf->result++;
65143 dirent = buf->dirent;
65144 if (!access_ok(VERIFY_WRITE, dirent,
65145 @@ -117,6 +123,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
65146 if (!f.file)
65147 return -EBADF;
65148
65149 + buf.file = f.file;
65150 error = iterate_dir(f.file, &buf.ctx);
65151 if (buf.result)
65152 error = buf.result;
65153 @@ -142,6 +149,7 @@ struct getdents_callback {
65154 struct dir_context ctx;
65155 struct linux_dirent __user * current_dir;
65156 struct linux_dirent __user * previous;
65157 + struct file * file;
65158 int count;
65159 int error;
65160 };
65161 @@ -163,6 +171,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
65162 buf->error = -EOVERFLOW;
65163 return -EOVERFLOW;
65164 }
65165 +
65166 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
65167 + return 0;
65168 +
65169 dirent = buf->previous;
65170 if (dirent) {
65171 if (__put_user(offset, &dirent->d_off))
65172 @@ -208,6 +220,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
65173 if (!f.file)
65174 return -EBADF;
65175
65176 + buf.file = f.file;
65177 error = iterate_dir(f.file, &buf.ctx);
65178 if (error >= 0)
65179 error = buf.error;
65180 @@ -226,6 +239,7 @@ struct getdents_callback64 {
65181 struct dir_context ctx;
65182 struct linux_dirent64 __user * current_dir;
65183 struct linux_dirent64 __user * previous;
65184 + struct file *file;
65185 int count;
65186 int error;
65187 };
65188 @@ -241,6 +255,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
65189 buf->error = -EINVAL; /* only used if we fail.. */
65190 if (reclen > buf->count)
65191 return -EINVAL;
65192 +
65193 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
65194 + return 0;
65195 +
65196 dirent = buf->previous;
65197 if (dirent) {
65198 if (__put_user(offset, &dirent->d_off))
65199 @@ -288,6 +306,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
65200 if (!f.file)
65201 return -EBADF;
65202
65203 + buf.file = f.file;
65204 error = iterate_dir(f.file, &buf.ctx);
65205 if (error >= 0)
65206 error = buf.error;
65207 diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
65208 index 9a3c68c..767933e 100644
65209 --- a/fs/reiserfs/do_balan.c
65210 +++ b/fs/reiserfs/do_balan.c
65211 @@ -1546,7 +1546,7 @@ void do_balance(struct tree_balance *tb, /* tree_balance structure */
65212 return;
65213 }
65214
65215 - atomic_inc(&(fs_generation(tb->tb_sb)));
65216 + atomic_inc_unchecked(&(fs_generation(tb->tb_sb)));
65217 do_balance_starts(tb);
65218
65219 /* balance leaf returns 0 except if combining L R and S into
65220 diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
65221 index ee382ef..f4eb6eb5 100644
65222 --- a/fs/reiserfs/item_ops.c
65223 +++ b/fs/reiserfs/item_ops.c
65224 @@ -725,18 +725,18 @@ static void errcatch_print_vi(struct virtual_item *vi)
65225 }
65226
65227 static struct item_operations errcatch_ops = {
65228 - errcatch_bytes_number,
65229 - errcatch_decrement_key,
65230 - errcatch_is_left_mergeable,
65231 - errcatch_print_item,
65232 - errcatch_check_item,
65233 + .bytes_number = errcatch_bytes_number,
65234 + .decrement_key = errcatch_decrement_key,
65235 + .is_left_mergeable = errcatch_is_left_mergeable,
65236 + .print_item = errcatch_print_item,
65237 + .check_item = errcatch_check_item,
65238
65239 - errcatch_create_vi,
65240 - errcatch_check_left,
65241 - errcatch_check_right,
65242 - errcatch_part_size,
65243 - errcatch_unit_num,
65244 - errcatch_print_vi
65245 + .create_vi = errcatch_create_vi,
65246 + .check_left = errcatch_check_left,
65247 + .check_right = errcatch_check_right,
65248 + .part_size = errcatch_part_size,
65249 + .unit_num = errcatch_unit_num,
65250 + .print_vi = errcatch_print_vi
65251 };
65252
65253 //////////////////////////////////////////////////////////////////////////////
65254 diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
65255 index 02b0b7d..c85018b 100644
65256 --- a/fs/reiserfs/procfs.c
65257 +++ b/fs/reiserfs/procfs.c
65258 @@ -114,7 +114,7 @@ static int show_super(struct seq_file *m, void *unused)
65259 "SMALL_TAILS " : "NO_TAILS ",
65260 replay_only(sb) ? "REPLAY_ONLY " : "",
65261 convert_reiserfs(sb) ? "CONV " : "",
65262 - atomic_read(&r->s_generation_counter),
65263 + atomic_read_unchecked(&r->s_generation_counter),
65264 SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
65265 SF(s_do_balance), SF(s_unneeded_left_neighbor),
65266 SF(s_good_search_by_key_reada), SF(s_bmaps),
65267 diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
65268 index 83d4eac..04e39a7 100644
65269 --- a/fs/reiserfs/reiserfs.h
65270 +++ b/fs/reiserfs/reiserfs.h
65271 @@ -453,7 +453,7 @@ struct reiserfs_sb_info {
65272 /* Comment? -Hans */
65273 wait_queue_head_t s_wait;
65274 /* To be obsoleted soon by per buffer seals.. -Hans */
65275 - atomic_t s_generation_counter; // increased by one every time the
65276 + atomic_unchecked_t s_generation_counter; // increased by one every time the
65277 // tree gets re-balanced
65278 unsigned long s_properties; /* File system properties. Currently holds
65279 on-disk FS format */
65280 @@ -1972,7 +1972,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
65281 #define REISERFS_USER_MEM 1 /* reiserfs user memory mode */
65282
65283 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
65284 -#define get_generation(s) atomic_read (&fs_generation(s))
65285 +#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
65286 #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen)
65287 #define __fs_changed(gen,s) (gen != get_generation (s))
65288 #define fs_changed(gen,s) \
65289 diff --git a/fs/select.c b/fs/select.c
65290 index 467bb1c..cf9d65a 100644
65291 --- a/fs/select.c
65292 +++ b/fs/select.c
65293 @@ -20,6 +20,7 @@
65294 #include <linux/export.h>
65295 #include <linux/slab.h>
65296 #include <linux/poll.h>
65297 +#include <linux/security.h>
65298 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
65299 #include <linux/file.h>
65300 #include <linux/fdtable.h>
65301 @@ -880,6 +881,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
65302 struct poll_list *walk = head;
65303 unsigned long todo = nfds;
65304
65305 + gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
65306 if (nfds > rlimit(RLIMIT_NOFILE))
65307 return -EINVAL;
65308
65309 diff --git a/fs/seq_file.c b/fs/seq_file.c
65310 index 1d641bb..c2f4743 100644
65311 --- a/fs/seq_file.c
65312 +++ b/fs/seq_file.c
65313 @@ -10,6 +10,8 @@
65314 #include <linux/seq_file.h>
65315 #include <linux/slab.h>
65316 #include <linux/cred.h>
65317 +#include <linux/sched.h>
65318 +#include <linux/grsecurity.h>
65319
65320 #include <asm/uaccess.h>
65321 #include <asm/page.h>
65322 @@ -60,6 +62,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
65323 #ifdef CONFIG_USER_NS
65324 p->user_ns = file->f_cred->user_ns;
65325 #endif
65326 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
65327 + p->exec_id = current->exec_id;
65328 +#endif
65329
65330 /*
65331 * Wrappers around seq_open(e.g. swaps_open) need to be
65332 @@ -82,6 +87,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
65333 }
65334 EXPORT_SYMBOL(seq_open);
65335
65336 +
65337 +int seq_open_restrict(struct file *file, const struct seq_operations *op)
65338 +{
65339 + if (gr_proc_is_restricted())
65340 + return -EACCES;
65341 +
65342 + return seq_open(file, op);
65343 +}
65344 +EXPORT_SYMBOL(seq_open_restrict);
65345 +
65346 static int traverse(struct seq_file *m, loff_t offset)
65347 {
65348 loff_t pos = 0, index;
65349 @@ -96,7 +111,7 @@ static int traverse(struct seq_file *m, loff_t offset)
65350 return 0;
65351 }
65352 if (!m->buf) {
65353 - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
65354 + m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
65355 if (!m->buf)
65356 return -ENOMEM;
65357 }
65358 @@ -137,7 +152,7 @@ Eoverflow:
65359 m->op->stop(m, p);
65360 kfree(m->buf);
65361 m->count = 0;
65362 - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
65363 + m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
65364 return !m->buf ? -ENOMEM : -EAGAIN;
65365 }
65366
65367 @@ -153,7 +168,7 @@ Eoverflow:
65368 ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
65369 {
65370 struct seq_file *m = file->private_data;
65371 - size_t copied = 0;
65372 + ssize_t copied = 0;
65373 loff_t pos;
65374 size_t n;
65375 void *p;
65376 @@ -192,7 +207,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
65377
65378 /* grab buffer if we didn't have one */
65379 if (!m->buf) {
65380 - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
65381 + m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
65382 if (!m->buf)
65383 goto Enomem;
65384 }
65385 @@ -234,7 +249,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
65386 m->op->stop(m, p);
65387 kfree(m->buf);
65388 m->count = 0;
65389 - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
65390 + m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
65391 if (!m->buf)
65392 goto Enomem;
65393 m->version = 0;
65394 @@ -584,7 +599,7 @@ static void single_stop(struct seq_file *p, void *v)
65395 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
65396 void *data)
65397 {
65398 - struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
65399 + seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
65400 int res = -ENOMEM;
65401
65402 if (op) {
65403 @@ -620,6 +635,17 @@ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
65404 }
65405 EXPORT_SYMBOL(single_open_size);
65406
65407 +int single_open_restrict(struct file *file, int (*show)(struct seq_file *, void *),
65408 + void *data)
65409 +{
65410 + if (gr_proc_is_restricted())
65411 + return -EACCES;
65412 +
65413 + return single_open(file, show, data);
65414 +}
65415 +EXPORT_SYMBOL(single_open_restrict);
65416 +
65417 +
65418 int single_release(struct inode *inode, struct file *file)
65419 {
65420 const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
65421 diff --git a/fs/splice.c b/fs/splice.c
65422 index e246954..bd4f5b5 100644
65423 --- a/fs/splice.c
65424 +++ b/fs/splice.c
65425 @@ -192,7 +192,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
65426 pipe_lock(pipe);
65427
65428 for (;;) {
65429 - if (!pipe->readers) {
65430 + if (!atomic_read(&pipe->readers)) {
65431 send_sig(SIGPIPE, current, 0);
65432 if (!ret)
65433 ret = -EPIPE;
65434 @@ -215,7 +215,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
65435 page_nr++;
65436 ret += buf->len;
65437
65438 - if (pipe->files)
65439 + if (atomic_read(&pipe->files))
65440 do_wakeup = 1;
65441
65442 if (!--spd->nr_pages)
65443 @@ -246,9 +246,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
65444 do_wakeup = 0;
65445 }
65446
65447 - pipe->waiting_writers++;
65448 + atomic_inc(&pipe->waiting_writers);
65449 pipe_wait(pipe);
65450 - pipe->waiting_writers--;
65451 + atomic_dec(&pipe->waiting_writers);
65452 }
65453
65454 pipe_unlock(pipe);
65455 @@ -575,7 +575,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
65456 old_fs = get_fs();
65457 set_fs(get_ds());
65458 /* The cast to a user pointer is valid due to the set_fs() */
65459 - res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
65460 + res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
65461 set_fs(old_fs);
65462
65463 return res;
65464 @@ -590,7 +590,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
65465 old_fs = get_fs();
65466 set_fs(get_ds());
65467 /* The cast to a user pointer is valid due to the set_fs() */
65468 - res = vfs_write(file, (__force const char __user *)buf, count, &pos);
65469 + res = vfs_write(file, (const char __force_user *)buf, count, &pos);
65470 set_fs(old_fs);
65471
65472 return res;
65473 @@ -643,7 +643,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
65474 goto err;
65475
65476 this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
65477 - vec[i].iov_base = (void __user *) page_address(page);
65478 + vec[i].iov_base = (void __force_user *) page_address(page);
65479 vec[i].iov_len = this_len;
65480 spd.pages[i] = page;
65481 spd.nr_pages++;
65482 @@ -839,7 +839,7 @@ int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_desc *sd,
65483 ops->release(pipe, buf);
65484 pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
65485 pipe->nrbufs--;
65486 - if (pipe->files)
65487 + if (atomic_read(&pipe->files))
65488 sd->need_wakeup = true;
65489 }
65490
65491 @@ -864,10 +864,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed);
65492 int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
65493 {
65494 while (!pipe->nrbufs) {
65495 - if (!pipe->writers)
65496 + if (!atomic_read(&pipe->writers))
65497 return 0;
65498
65499 - if (!pipe->waiting_writers && sd->num_spliced)
65500 + if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
65501 return 0;
65502
65503 if (sd->flags & SPLICE_F_NONBLOCK)
65504 @@ -1189,7 +1189,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
65505 * out of the pipe right after the splice_to_pipe(). So set
65506 * PIPE_READERS appropriately.
65507 */
65508 - pipe->readers = 1;
65509 + atomic_set(&pipe->readers, 1);
65510
65511 current->splice_pipe = pipe;
65512 }
65513 @@ -1485,6 +1485,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
65514
65515 partial[buffers].offset = off;
65516 partial[buffers].len = plen;
65517 + partial[buffers].private = 0;
65518
65519 off = 0;
65520 len -= plen;
65521 @@ -1721,9 +1722,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
65522 ret = -ERESTARTSYS;
65523 break;
65524 }
65525 - if (!pipe->writers)
65526 + if (!atomic_read(&pipe->writers))
65527 break;
65528 - if (!pipe->waiting_writers) {
65529 + if (!atomic_read(&pipe->waiting_writers)) {
65530 if (flags & SPLICE_F_NONBLOCK) {
65531 ret = -EAGAIN;
65532 break;
65533 @@ -1755,7 +1756,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
65534 pipe_lock(pipe);
65535
65536 while (pipe->nrbufs >= pipe->buffers) {
65537 - if (!pipe->readers) {
65538 + if (!atomic_read(&pipe->readers)) {
65539 send_sig(SIGPIPE, current, 0);
65540 ret = -EPIPE;
65541 break;
65542 @@ -1768,9 +1769,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
65543 ret = -ERESTARTSYS;
65544 break;
65545 }
65546 - pipe->waiting_writers++;
65547 + atomic_inc(&pipe->waiting_writers);
65548 pipe_wait(pipe);
65549 - pipe->waiting_writers--;
65550 + atomic_dec(&pipe->waiting_writers);
65551 }
65552
65553 pipe_unlock(pipe);
65554 @@ -1806,14 +1807,14 @@ retry:
65555 pipe_double_lock(ipipe, opipe);
65556
65557 do {
65558 - if (!opipe->readers) {
65559 + if (!atomic_read(&opipe->readers)) {
65560 send_sig(SIGPIPE, current, 0);
65561 if (!ret)
65562 ret = -EPIPE;
65563 break;
65564 }
65565
65566 - if (!ipipe->nrbufs && !ipipe->writers)
65567 + if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
65568 break;
65569
65570 /*
65571 @@ -1910,7 +1911,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
65572 pipe_double_lock(ipipe, opipe);
65573
65574 do {
65575 - if (!opipe->readers) {
65576 + if (!atomic_read(&opipe->readers)) {
65577 send_sig(SIGPIPE, current, 0);
65578 if (!ret)
65579 ret = -EPIPE;
65580 @@ -1955,7 +1956,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
65581 * return EAGAIN if we have the potential of some data in the
65582 * future, otherwise just return 0
65583 */
65584 - if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
65585 + if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
65586 ret = -EAGAIN;
65587
65588 pipe_unlock(ipipe);
65589 diff --git a/fs/stat.c b/fs/stat.c
65590 index ae0c3ce..9ee641c 100644
65591 --- a/fs/stat.c
65592 +++ b/fs/stat.c
65593 @@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
65594 stat->gid = inode->i_gid;
65595 stat->rdev = inode->i_rdev;
65596 stat->size = i_size_read(inode);
65597 - stat->atime = inode->i_atime;
65598 - stat->mtime = inode->i_mtime;
65599 + if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
65600 + stat->atime = inode->i_ctime;
65601 + stat->mtime = inode->i_ctime;
65602 + } else {
65603 + stat->atime = inode->i_atime;
65604 + stat->mtime = inode->i_mtime;
65605 + }
65606 stat->ctime = inode->i_ctime;
65607 stat->blksize = (1 << inode->i_blkbits);
65608 stat->blocks = inode->i_blocks;
65609 @@ -52,9 +57,16 @@ EXPORT_SYMBOL(generic_fillattr);
65610 int vfs_getattr_nosec(struct path *path, struct kstat *stat)
65611 {
65612 struct inode *inode = path->dentry->d_inode;
65613 + int retval;
65614
65615 - if (inode->i_op->getattr)
65616 - return inode->i_op->getattr(path->mnt, path->dentry, stat);
65617 + if (inode->i_op->getattr) {
65618 + retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
65619 + if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
65620 + stat->atime = stat->ctime;
65621 + stat->mtime = stat->ctime;
65622 + }
65623 + return retval;
65624 + }
65625
65626 generic_fillattr(inode, stat);
65627 return 0;
65628 diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
65629 index 0b45ff4..847de5b 100644
65630 --- a/fs/sysfs/dir.c
65631 +++ b/fs/sysfs/dir.c
65632 @@ -41,9 +41,16 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
65633 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
65634 {
65635 struct kernfs_node *parent, *kn;
65636 + const char *name;
65637 + umode_t mode = S_IRWXU | S_IRUGO | S_IXUGO;
65638 +#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
65639 + const char *parent_name;
65640 +#endif
65641
65642 BUG_ON(!kobj);
65643
65644 + name = kobject_name(kobj);
65645 +
65646 if (kobj->parent)
65647 parent = kobj->parent->sd;
65648 else
65649 @@ -52,11 +59,22 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
65650 if (!parent)
65651 return -ENOENT;
65652
65653 - kn = kernfs_create_dir_ns(parent, kobject_name(kobj),
65654 - S_IRWXU | S_IRUGO | S_IXUGO, kobj, ns);
65655 +#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
65656 + parent_name = parent->name;
65657 + mode = S_IRWXU;
65658 +
65659 + if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
65660 + (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
65661 + (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse") || !strcmp(name, "ecryptfs"))) ||
65662 + (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
65663 + mode = S_IRWXU | S_IRUGO | S_IXUGO;
65664 +#endif
65665 +
65666 + kn = kernfs_create_dir_ns(parent, name,
65667 + mode, kobj, ns);
65668 if (IS_ERR(kn)) {
65669 if (PTR_ERR(kn) == -EEXIST)
65670 - sysfs_warn_dup(parent, kobject_name(kobj));
65671 + sysfs_warn_dup(parent, name);
65672 return PTR_ERR(kn);
65673 }
65674
65675 diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
65676 index 69d4889..a810bd4 100644
65677 --- a/fs/sysv/sysv.h
65678 +++ b/fs/sysv/sysv.h
65679 @@ -188,7 +188,7 @@ static inline u32 PDP_swab(u32 x)
65680 #endif
65681 }
65682
65683 -static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
65684 +static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
65685 {
65686 if (sbi->s_bytesex == BYTESEX_PDP)
65687 return PDP_swab((__force __u32)n);
65688 diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
65689 index e18b988..f1d4ad0f 100644
65690 --- a/fs/ubifs/io.c
65691 +++ b/fs/ubifs/io.c
65692 @@ -155,7 +155,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
65693 return err;
65694 }
65695
65696 -int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
65697 +int __intentional_overflow(-1) ubifs_leb_unmap(struct ubifs_info *c, int lnum)
65698 {
65699 int err;
65700
65701 diff --git a/fs/udf/misc.c b/fs/udf/misc.c
65702 index c175b4d..8f36a16 100644
65703 --- a/fs/udf/misc.c
65704 +++ b/fs/udf/misc.c
65705 @@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
65706
65707 u8 udf_tag_checksum(const struct tag *t)
65708 {
65709 - u8 *data = (u8 *)t;
65710 + const u8 *data = (const u8 *)t;
65711 u8 checksum = 0;
65712 int i;
65713 for (i = 0; i < sizeof(struct tag); ++i)
65714 diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
65715 index 8d974c4..b82f6ec 100644
65716 --- a/fs/ufs/swab.h
65717 +++ b/fs/ufs/swab.h
65718 @@ -22,7 +22,7 @@ enum {
65719 BYTESEX_BE
65720 };
65721
65722 -static inline u64
65723 +static inline u64 __intentional_overflow(-1)
65724 fs64_to_cpu(struct super_block *sbp, __fs64 n)
65725 {
65726 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
65727 @@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
65728 return (__force __fs64)cpu_to_be64(n);
65729 }
65730
65731 -static inline u32
65732 +static inline u32 __intentional_overflow(-1)
65733 fs32_to_cpu(struct super_block *sbp, __fs32 n)
65734 {
65735 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
65736 diff --git a/fs/utimes.c b/fs/utimes.c
65737 index aa138d6..5f3a811 100644
65738 --- a/fs/utimes.c
65739 +++ b/fs/utimes.c
65740 @@ -1,6 +1,7 @@
65741 #include <linux/compiler.h>
65742 #include <linux/file.h>
65743 #include <linux/fs.h>
65744 +#include <linux/security.h>
65745 #include <linux/linkage.h>
65746 #include <linux/mount.h>
65747 #include <linux/namei.h>
65748 @@ -103,6 +104,12 @@ static int utimes_common(struct path *path, struct timespec *times)
65749 }
65750 }
65751 retry_deleg:
65752 +
65753 + if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
65754 + error = -EACCES;
65755 + goto mnt_drop_write_and_out;
65756 + }
65757 +
65758 mutex_lock(&inode->i_mutex);
65759 error = notify_change(path->dentry, &newattrs, &delegated_inode);
65760 mutex_unlock(&inode->i_mutex);
65761 diff --git a/fs/xattr.c b/fs/xattr.c
65762 index 3377dff..f394815 100644
65763 --- a/fs/xattr.c
65764 +++ b/fs/xattr.c
65765 @@ -227,6 +227,27 @@ int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
65766 return rc;
65767 }
65768
65769 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
65770 +ssize_t
65771 +pax_getxattr(struct dentry *dentry, void *value, size_t size)
65772 +{
65773 + struct inode *inode = dentry->d_inode;
65774 + ssize_t error;
65775 +
65776 + error = inode_permission(inode, MAY_EXEC);
65777 + if (error)
65778 + return error;
65779 +
65780 + if (inode->i_op->getxattr)
65781 + error = inode->i_op->getxattr(dentry, XATTR_NAME_PAX_FLAGS, value, size);
65782 + else
65783 + error = -EOPNOTSUPP;
65784 +
65785 + return error;
65786 +}
65787 +EXPORT_SYMBOL(pax_getxattr);
65788 +#endif
65789 +
65790 ssize_t
65791 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
65792 {
65793 @@ -319,7 +340,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
65794 * Extended attribute SET operations
65795 */
65796 static long
65797 -setxattr(struct dentry *d, const char __user *name, const void __user *value,
65798 +setxattr(struct path *path, const char __user *name, const void __user *value,
65799 size_t size, int flags)
65800 {
65801 int error;
65802 @@ -355,7 +376,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
65803 posix_acl_fix_xattr_from_user(kvalue, size);
65804 }
65805
65806 - error = vfs_setxattr(d, kname, kvalue, size, flags);
65807 + if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
65808 + error = -EACCES;
65809 + goto out;
65810 + }
65811 +
65812 + error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
65813 out:
65814 if (vvalue)
65815 vfree(vvalue);
65816 @@ -377,7 +403,7 @@ retry:
65817 return error;
65818 error = mnt_want_write(path.mnt);
65819 if (!error) {
65820 - error = setxattr(path.dentry, name, value, size, flags);
65821 + error = setxattr(&path, name, value, size, flags);
65822 mnt_drop_write(path.mnt);
65823 }
65824 path_put(&path);
65825 @@ -401,7 +427,7 @@ retry:
65826 return error;
65827 error = mnt_want_write(path.mnt);
65828 if (!error) {
65829 - error = setxattr(path.dentry, name, value, size, flags);
65830 + error = setxattr(&path, name, value, size, flags);
65831 mnt_drop_write(path.mnt);
65832 }
65833 path_put(&path);
65834 @@ -416,16 +442,14 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
65835 const void __user *,value, size_t, size, int, flags)
65836 {
65837 struct fd f = fdget(fd);
65838 - struct dentry *dentry;
65839 int error = -EBADF;
65840
65841 if (!f.file)
65842 return error;
65843 - dentry = f.file->f_path.dentry;
65844 - audit_inode(NULL, dentry, 0);
65845 + audit_inode(NULL, f.file->f_path.dentry, 0);
65846 error = mnt_want_write_file(f.file);
65847 if (!error) {
65848 - error = setxattr(dentry, name, value, size, flags);
65849 + error = setxattr(&f.file->f_path, name, value, size, flags);
65850 mnt_drop_write_file(f.file);
65851 }
65852 fdput(f);
65853 @@ -626,7 +650,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
65854 * Extended attribute REMOVE operations
65855 */
65856 static long
65857 -removexattr(struct dentry *d, const char __user *name)
65858 +removexattr(struct path *path, const char __user *name)
65859 {
65860 int error;
65861 char kname[XATTR_NAME_MAX + 1];
65862 @@ -637,7 +661,10 @@ removexattr(struct dentry *d, const char __user *name)
65863 if (error < 0)
65864 return error;
65865
65866 - return vfs_removexattr(d, kname);
65867 + if (!gr_acl_handle_removexattr(path->dentry, path->mnt))
65868 + return -EACCES;
65869 +
65870 + return vfs_removexattr(path->dentry, kname);
65871 }
65872
65873 SYSCALL_DEFINE2(removexattr, const char __user *, pathname,
65874 @@ -652,7 +679,7 @@ retry:
65875 return error;
65876 error = mnt_want_write(path.mnt);
65877 if (!error) {
65878 - error = removexattr(path.dentry, name);
65879 + error = removexattr(&path, name);
65880 mnt_drop_write(path.mnt);
65881 }
65882 path_put(&path);
65883 @@ -675,7 +702,7 @@ retry:
65884 return error;
65885 error = mnt_want_write(path.mnt);
65886 if (!error) {
65887 - error = removexattr(path.dentry, name);
65888 + error = removexattr(&path, name);
65889 mnt_drop_write(path.mnt);
65890 }
65891 path_put(&path);
65892 @@ -689,16 +716,16 @@ retry:
65893 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
65894 {
65895 struct fd f = fdget(fd);
65896 - struct dentry *dentry;
65897 + struct path *path;
65898 int error = -EBADF;
65899
65900 if (!f.file)
65901 return error;
65902 - dentry = f.file->f_path.dentry;
65903 - audit_inode(NULL, dentry, 0);
65904 + path = &f.file->f_path;
65905 + audit_inode(NULL, path->dentry, 0);
65906 error = mnt_want_write_file(f.file);
65907 if (!error) {
65908 - error = removexattr(dentry, name);
65909 + error = removexattr(path, name);
65910 mnt_drop_write_file(f.file);
65911 }
65912 fdput(f);
65913 diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
65914 index f0efc7e..ba72910 100644
65915 --- a/fs/xfs/xfs_bmap.c
65916 +++ b/fs/xfs/xfs_bmap.c
65917 @@ -584,7 +584,7 @@ xfs_bmap_validate_ret(
65918
65919 #else
65920 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork) do { } while (0)
65921 -#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
65922 +#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do { } while (0)
65923 #endif /* DEBUG */
65924
65925 /*
65926 diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
65927 index aead369..0dfecfd 100644
65928 --- a/fs/xfs/xfs_dir2_readdir.c
65929 +++ b/fs/xfs/xfs_dir2_readdir.c
65930 @@ -160,7 +160,12 @@ xfs_dir2_sf_getdents(
65931 ino = dp->d_ops->sf_get_ino(sfp, sfep);
65932 filetype = dp->d_ops->sf_get_ftype(sfep);
65933 ctx->pos = off & 0x7fffffff;
65934 - if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
65935 + if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
65936 + char name[sfep->namelen];
65937 + memcpy(name, sfep->name, sfep->namelen);
65938 + if (!dir_emit(ctx, name, sfep->namelen, ino, xfs_dir3_get_dtype(mp, filetype)))
65939 + return 0;
65940 + } else if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
65941 xfs_dir3_get_dtype(mp, filetype)))
65942 return 0;
65943 sfep = dp->d_ops->sf_nextentry(sfp, sfep);
65944 diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
65945 index 6152cbe..f0f9eaa 100644
65946 --- a/fs/xfs/xfs_ioctl.c
65947 +++ b/fs/xfs/xfs_ioctl.c
65948 @@ -122,7 +122,7 @@ xfs_find_handle(
65949 }
65950
65951 error = -EFAULT;
65952 - if (copy_to_user(hreq->ohandle, &handle, hsize) ||
65953 + if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
65954 copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
65955 goto out_put;
65956
65957 diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
65958 new file mode 100644
65959 index 0000000..bfd482c
65960 --- /dev/null
65961 +++ b/grsecurity/Kconfig
65962 @@ -0,0 +1,1176 @@
65963 +#
65964 +# grecurity configuration
65965 +#
65966 +menu "Memory Protections"
65967 +depends on GRKERNSEC
65968 +
65969 +config GRKERNSEC_KMEM
65970 + bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
65971 + default y if GRKERNSEC_CONFIG_AUTO
65972 + select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
65973 + help
65974 + If you say Y here, /dev/kmem and /dev/mem won't be allowed to
65975 + be written to or read from to modify or leak the contents of the running
65976 + kernel. /dev/port will also not be allowed to be opened, writing to
65977 + /dev/cpu/*/msr will be prevented, and support for kexec will be removed.
65978 + If you have module support disabled, enabling this will close up several
65979 + ways that are currently used to insert malicious code into the running
65980 + kernel.
65981 +
65982 + Even with this feature enabled, we still highly recommend that
65983 + you use the RBAC system, as it is still possible for an attacker to
65984 + modify the running kernel through other more obscure methods.
65985 +
65986 + It is highly recommended that you say Y here if you meet all the
65987 + conditions above.
65988 +
65989 +config GRKERNSEC_VM86
65990 + bool "Restrict VM86 mode"
65991 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
65992 + depends on X86_32
65993 +
65994 + help
65995 + If you say Y here, only processes with CAP_SYS_RAWIO will be able to
65996 + make use of a special execution mode on 32bit x86 processors called
65997 + Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain
65998 + video cards and will still work with this option enabled. The purpose
65999 + of the option is to prevent exploitation of emulation errors in
66000 + virtualization of vm86 mode like the one discovered in VMWare in 2009.
66001 + Nearly all users should be able to enable this option.
66002 +
66003 +config GRKERNSEC_IO
66004 + bool "Disable privileged I/O"
66005 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
66006 + depends on X86
66007 + select RTC_CLASS
66008 + select RTC_INTF_DEV
66009 + select RTC_DRV_CMOS
66010 +
66011 + help
66012 + If you say Y here, all ioperm and iopl calls will return an error.
66013 + Ioperm and iopl can be used to modify the running kernel.
66014 + Unfortunately, some programs need this access to operate properly,
66015 + the most notable of which are XFree86 and hwclock. hwclock can be
66016 + remedied by having RTC support in the kernel, so real-time
66017 + clock support is enabled if this option is enabled, to ensure
66018 + that hwclock operates correctly. If hwclock still does not work,
66019 + either update udev or symlink /dev/rtc to /dev/rtc0.
66020 +
66021 + If you're using XFree86 or a version of Xorg from 2012 or earlier,
66022 + you may not be able to boot into a graphical environment with this
66023 + option enabled. In this case, you should use the RBAC system instead.
66024 +
66025 +config GRKERNSEC_JIT_HARDEN
66026 + bool "Harden BPF JIT against spray attacks"
66027 + default y if GRKERNSEC_CONFIG_AUTO
66028 + depends on BPF_JIT && X86
66029 + help
66030 + If you say Y here, the native code generated by the kernel's Berkeley
66031 + Packet Filter (BPF) JIT engine will be hardened against JIT-spraying
66032 + attacks that attempt to fit attacker-beneficial instructions in
66033 + 32bit immediate fields of JIT-generated native instructions. The
66034 + attacker will generally aim to cause an unintended instruction sequence
66035 + of JIT-generated native code to execute by jumping into the middle of
66036 + a generated instruction. This feature effectively randomizes the 32bit
66037 + immediate constants present in the generated code to thwart such attacks.
66038 +
66039 + If you're using KERNEXEC, it's recommended that you enable this option
66040 + to supplement the hardening of the kernel.
66041 +
66042 +config GRKERNSEC_PERF_HARDEN
66043 + bool "Disable unprivileged PERF_EVENTS usage by default"
66044 + default y if GRKERNSEC_CONFIG_AUTO
66045 + depends on PERF_EVENTS
66046 + help
66047 + If you say Y here, the range of acceptable values for the
66048 + /proc/sys/kernel/perf_event_paranoid sysctl will be expanded to allow and
66049 + default to a new value: 3. When the sysctl is set to this value, no
66050 + unprivileged use of the PERF_EVENTS syscall interface will be permitted.
66051 +
66052 + Though PERF_EVENTS can be used legitimately for performance monitoring
66053 + and low-level application profiling, it is forced on regardless of
66054 + configuration, has been at fault for several vulnerabilities, and
66055 + creates new opportunities for side channels and other information leaks.
66056 +
66057 + This feature puts PERF_EVENTS into a secure default state and permits
66058 + the administrator to change out of it temporarily if unprivileged
66059 + application profiling is needed.
66060 +
66061 +config GRKERNSEC_RAND_THREADSTACK
66062 + bool "Insert random gaps between thread stacks"
66063 + default y if GRKERNSEC_CONFIG_AUTO
66064 + depends on PAX_RANDMMAP && !PPC
66065 + help
66066 + If you say Y here, a random-sized gap will be enforced between allocated
66067 + thread stacks. Glibc's NPTL and other threading libraries that
66068 + pass MAP_STACK to the kernel for thread stack allocation are supported.
66069 + The implementation currently provides 8 bits of entropy for the gap.
66070 +
66071 + Many distributions do not compile threaded remote services with the
66072 + -fstack-check argument to GCC, causing the variable-sized stack-based
66073 + allocator, alloca(), to not probe the stack on allocation. This
66074 + permits an unbounded alloca() to skip over any guard page and potentially
66075 + modify another thread's stack reliably. An enforced random gap
66076 + reduces the reliability of such an attack and increases the chance
66077 + that such a read/write to another thread's stack instead lands in
66078 + an unmapped area, causing a crash and triggering grsecurity's
66079 + anti-bruteforcing logic.
66080 +
66081 +config GRKERNSEC_PROC_MEMMAP
66082 + bool "Harden ASLR against information leaks and entropy reduction"
66083 + default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
66084 + depends on PAX_NOEXEC || PAX_ASLR
66085 + help
66086 + If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
66087 + give no information about the addresses of its mappings if
66088 + PaX features that rely on random addresses are enabled on the task.
66089 + In addition to sanitizing this information and disabling other
66090 + dangerous sources of information, this option causes reads of sensitive
66091 + /proc/<pid> entries where the file descriptor was opened in a different
66092 + task than the one performing the read. Such attempts are logged.
66093 + This option also limits argv/env strings for suid/sgid binaries
66094 + to 512KB to prevent a complete exhaustion of the stack entropy provided
66095 + by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid
66096 + binaries to prevent alternative mmap layouts from being abused.
66097 +
66098 + If you use PaX it is essential that you say Y here as it closes up
66099 + several holes that make full ASLR useless locally.
66100 +
66101 +
66102 +config GRKERNSEC_KSTACKOVERFLOW
66103 + bool "Prevent kernel stack overflows"
66104 + default y if GRKERNSEC_CONFIG_AUTO
66105 + depends on !IA64 && 64BIT
66106 + help
66107 + If you say Y here, the kernel's process stacks will be allocated
66108 + with vmalloc instead of the kernel's default allocator. This
66109 + introduces guard pages that in combination with the alloca checking
66110 + of the STACKLEAK feature prevents all forms of kernel process stack
66111 + overflow abuse. Note that this is different from kernel stack
66112 + buffer overflows.
66113 +
66114 +config GRKERNSEC_BRUTE
66115 + bool "Deter exploit bruteforcing"
66116 + default y if GRKERNSEC_CONFIG_AUTO
66117 + help
66118 + If you say Y here, attempts to bruteforce exploits against forking
66119 + daemons such as apache or sshd, as well as against suid/sgid binaries
66120 + will be deterred. When a child of a forking daemon is killed by PaX
66121 + or crashes due to an illegal instruction or other suspicious signal,
66122 + the parent process will be delayed 30 seconds upon every subsequent
66123 + fork until the administrator is able to assess the situation and
66124 + restart the daemon.
66125 + In the suid/sgid case, the attempt is logged, the user has all their
66126 + existing instances of the suid/sgid binary terminated and will
66127 + be unable to execute any suid/sgid binaries for 15 minutes.
66128 +
66129 + It is recommended that you also enable signal logging in the auditing
66130 + section so that logs are generated when a process triggers a suspicious
66131 + signal.
66132 + If the sysctl option is enabled, a sysctl option with name
66133 + "deter_bruteforce" is created.
66134 +
66135 +config GRKERNSEC_MODHARDEN
66136 + bool "Harden module auto-loading"
66137 + default y if GRKERNSEC_CONFIG_AUTO
66138 + depends on MODULES
66139 + help
66140 + If you say Y here, module auto-loading in response to use of some
66141 + feature implemented by an unloaded module will be restricted to
66142 + root users. Enabling this option helps defend against attacks
66143 + by unprivileged users who abuse the auto-loading behavior to
66144 + cause a vulnerable module to load that is then exploited.
66145 +
66146 + If this option prevents a legitimate use of auto-loading for a
66147 + non-root user, the administrator can execute modprobe manually
66148 + with the exact name of the module mentioned in the alert log.
66149 + Alternatively, the administrator can add the module to the list
66150 + of modules loaded at boot by modifying init scripts.
66151 +
66152 + Modification of init scripts will most likely be needed on
66153 + Ubuntu servers with encrypted home directory support enabled,
66154 + as the first non-root user logging in will cause the ecb(aes),
66155 + ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded.
66156 +
66157 +config GRKERNSEC_HIDESYM
66158 + bool "Hide kernel symbols"
66159 + default y if GRKERNSEC_CONFIG_AUTO
66160 + select PAX_USERCOPY_SLABS
66161 + help
66162 + If you say Y here, getting information on loaded modules, and
66163 + displaying all kernel symbols through a syscall will be restricted
66164 + to users with CAP_SYS_MODULE. For software compatibility reasons,
66165 + /proc/kallsyms will be restricted to the root user. The RBAC
66166 + system can hide that entry even from root.
66167 +
66168 + This option also prevents leaking of kernel addresses through
66169 + several /proc entries.
66170 +
66171 + Note that this option is only effective provided the following
66172 + conditions are met:
66173 + 1) The kernel using grsecurity is not precompiled by some distribution
66174 + 2) You have also enabled GRKERNSEC_DMESG
66175 + 3) You are using the RBAC system and hiding other files such as your
66176 + kernel image and System.map. Alternatively, enabling this option
66177 + causes the permissions on /boot, /lib/modules, and the kernel
66178 + source directory to change at compile time to prevent
66179 + reading by non-root users.
66180 + If the above conditions are met, this option will aid in providing a
66181 + useful protection against local kernel exploitation of overflows
66182 + and arbitrary read/write vulnerabilities.
66183 +
66184 + It is highly recommended that you enable GRKERNSEC_PERF_HARDEN
66185 + in addition to this feature.
66186 +
66187 +config GRKERNSEC_RANDSTRUCT
66188 + bool "Randomize layout of sensitive kernel structures"
66189 + default y if GRKERNSEC_CONFIG_AUTO
66190 + select GRKERNSEC_HIDESYM
66191 + select MODVERSIONS if MODULES
66192 + help
66193 + If you say Y here, the layouts of a number of sensitive kernel
66194 + structures (task, fs, cred, etc) and all structures composed entirely
66195 + of function pointers (aka "ops" structs) will be randomized at compile-time.
66196 + This can introduce the requirement of an additional infoleak
66197 + vulnerability for exploits targeting these structure types.
66198 +
66199 + Enabling this feature will introduce some performance impact, slightly
66200 + increase memory usage, and prevent the use of forensic tools like
66201 + Volatility against the system (unless the kernel source tree isn't
66202 + cleaned after kernel installation).
66203 +
66204 + The seed used for compilation is located at tools/gcc/randomize_layout_seed.h.
66205 + It remains after a make clean to allow for external modules to be compiled
66206 + with the existing seed and will be removed by a make mrproper or
66207 + make distclean.
66208 +
66209 + Note that the implementation requires gcc 4.6.4. or newer. You may need
66210 + to install the supporting headers explicitly in addition to the normal
66211 + gcc package.
66212 +
66213 +config GRKERNSEC_RANDSTRUCT_PERFORMANCE
66214 + bool "Use cacheline-aware structure randomization"
66215 + depends on GRKERNSEC_RANDSTRUCT
66216 + default y if GRKERNSEC_CONFIG_PRIORITY_PERF
66217 + help
66218 + If you say Y here, the RANDSTRUCT randomization will make a best effort
66219 + at restricting randomization to cacheline-sized groups of elements. It
66220 + will further not randomize bitfields in structures. This reduces the
66221 + performance hit of RANDSTRUCT at the cost of weakened randomization.
66222 +
66223 +config GRKERNSEC_KERN_LOCKOUT
66224 + bool "Active kernel exploit response"
66225 + default y if GRKERNSEC_CONFIG_AUTO
66226 + depends on X86 || ARM || PPC || SPARC
66227 + help
66228 + If you say Y here, when a PaX alert is triggered due to suspicious
66229 + activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
66230 + or an OOPS occurs due to bad memory accesses, instead of just
66231 + terminating the offending process (and potentially allowing
66232 + a subsequent exploit from the same user), we will take one of two
66233 + actions:
66234 + If the user was root, we will panic the system
66235 + If the user was non-root, we will log the attempt, terminate
66236 + all processes owned by the user, then prevent them from creating
66237 + any new processes until the system is restarted
66238 + This deters repeated kernel exploitation/bruteforcing attempts
66239 + and is useful for later forensics.
66240 +
66241 +config GRKERNSEC_OLD_ARM_USERLAND
66242 + bool "Old ARM userland compatibility"
66243 + depends on ARM && (CPU_V6 || CPU_V6K || CPU_V7)
66244 + help
66245 + If you say Y here, stubs of executable code to perform such operations
66246 + as "compare-exchange" will be placed at fixed locations in the ARM vector
66247 + table. This is unfortunately needed for old ARM userland meant to run
66248 + across a wide range of processors. Without this option enabled,
66249 + the get_tls and data memory barrier stubs will be emulated by the kernel,
66250 + which is enough for Linaro userlands or other userlands designed for v6
66251 + and newer ARM CPUs. It's recommended that you try without this option enabled
66252 + first, and only enable it if your userland does not boot (it will likely fail
66253 + at init time).
66254 +
66255 +endmenu
66256 +menu "Role Based Access Control Options"
66257 +depends on GRKERNSEC
66258 +
66259 +config GRKERNSEC_RBAC_DEBUG
66260 + bool
66261 +
66262 +config GRKERNSEC_NO_RBAC
66263 + bool "Disable RBAC system"
66264 + help
66265 + If you say Y here, the /dev/grsec device will be removed from the kernel,
66266 + preventing the RBAC system from being enabled. You should only say Y
66267 + here if you have no intention of using the RBAC system, so as to prevent
66268 + an attacker with root access from misusing the RBAC system to hide files
66269 + and processes when loadable module support and /dev/[k]mem have been
66270 + locked down.
66271 +
66272 +config GRKERNSEC_ACL_HIDEKERN
66273 + bool "Hide kernel processes"
66274 + help
66275 + If you say Y here, all kernel threads will be hidden to all
66276 + processes but those whose subject has the "view hidden processes"
66277 + flag.
66278 +
66279 +config GRKERNSEC_ACL_MAXTRIES
66280 + int "Maximum tries before password lockout"
66281 + default 3
66282 + help
66283 + This option enforces the maximum number of times a user can attempt
66284 + to authorize themselves with the grsecurity RBAC system before being
66285 + denied the ability to attempt authorization again for a specified time.
66286 + The lower the number, the harder it will be to brute-force a password.
66287 +
66288 +config GRKERNSEC_ACL_TIMEOUT
66289 + int "Time to wait after max password tries, in seconds"
66290 + default 30
66291 + help
66292 + This option specifies the time the user must wait after attempting to
66293 + authorize to the RBAC system with the maximum number of invalid
66294 + passwords. The higher the number, the harder it will be to brute-force
66295 + a password.
66296 +
66297 +endmenu
66298 +menu "Filesystem Protections"
66299 +depends on GRKERNSEC
66300 +
66301 +config GRKERNSEC_PROC
66302 + bool "Proc restrictions"
66303 + default y if GRKERNSEC_CONFIG_AUTO
66304 + help
66305 + If you say Y here, the permissions of the /proc filesystem
66306 + will be altered to enhance system security and privacy. You MUST
66307 + choose either a user only restriction or a user and group restriction.
66308 + Depending upon the option you choose, you can either restrict users to
66309 + see only the processes they themselves run, or choose a group that can
66310 + view all processes and files normally restricted to root if you choose
66311 + the "restrict to user only" option. NOTE: If you're running identd or
66312 + ntpd as a non-root user, you will have to run it as the group you
66313 + specify here.
66314 +
66315 +config GRKERNSEC_PROC_USER
66316 + bool "Restrict /proc to user only"
66317 + depends on GRKERNSEC_PROC
66318 + help
66319 + If you say Y here, non-root users will only be able to view their own
66320 + processes, and restricts them from viewing network-related information,
66321 + and viewing kernel symbol and module information.
66322 +
66323 +config GRKERNSEC_PROC_USERGROUP
66324 + bool "Allow special group"
66325 + default y if GRKERNSEC_CONFIG_AUTO
66326 + depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
66327 + help
66328 + If you say Y here, you will be able to select a group that will be
66329 + able to view all processes and network-related information. If you've
66330 + enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
66331 + remain hidden. This option is useful if you want to run identd as
66332 + a non-root user. The group you select may also be chosen at boot time
66333 + via "grsec_proc_gid=" on the kernel commandline.
66334 +
66335 +config GRKERNSEC_PROC_GID
66336 + int "GID for special group"
66337 + depends on GRKERNSEC_PROC_USERGROUP
66338 + default 1001
66339 +
66340 +config GRKERNSEC_PROC_ADD
66341 + bool "Additional restrictions"
66342 + default y if GRKERNSEC_CONFIG_AUTO
66343 + depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
66344 + help
66345 + If you say Y here, additional restrictions will be placed on
66346 + /proc that keep normal users from viewing device information and
66347 + slabinfo information that could be useful for exploits.
66348 +
66349 +config GRKERNSEC_LINK
66350 + bool "Linking restrictions"
66351 + default y if GRKERNSEC_CONFIG_AUTO
66352 + help
66353 + If you say Y here, /tmp race exploits will be prevented, since users
66354 + will no longer be able to follow symlinks owned by other users in
66355 + world-writable +t directories (e.g. /tmp), unless the owner of the
66356 + symlink is the owner of the directory. users will also not be
66357 + able to hardlink to files they do not own. If the sysctl option is
66358 + enabled, a sysctl option with name "linking_restrictions" is created.
66359 +
66360 +config GRKERNSEC_SYMLINKOWN
66361 + bool "Kernel-enforced SymlinksIfOwnerMatch"
66362 + default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
66363 + help
66364 + Apache's SymlinksIfOwnerMatch option has an inherent race condition
66365 + that prevents it from being used as a security feature. As Apache
66366 + verifies the symlink by performing a stat() against the target of
66367 + the symlink before it is followed, an attacker can setup a symlink
66368 + to point to a same-owned file, then replace the symlink with one
66369 + that targets another user's file just after Apache "validates" the
66370 + symlink -- a classic TOCTOU race. If you say Y here, a complete,
66371 + race-free replacement for Apache's "SymlinksIfOwnerMatch" option
66372 + will be in place for the group you specify. If the sysctl option
66373 + is enabled, a sysctl option with name "enforce_symlinksifowner" is
66374 + created.
66375 +
66376 +config GRKERNSEC_SYMLINKOWN_GID
66377 + int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
66378 + depends on GRKERNSEC_SYMLINKOWN
66379 + default 1006
66380 + help
66381 + Setting this GID determines what group kernel-enforced
66382 + SymlinksIfOwnerMatch will be enabled for. If the sysctl option
66383 + is enabled, a sysctl option with name "symlinkown_gid" is created.
66384 +
66385 +config GRKERNSEC_FIFO
66386 + bool "FIFO restrictions"
66387 + default y if GRKERNSEC_CONFIG_AUTO
66388 + help
66389 + If you say Y here, users will not be able to write to FIFOs they don't
66390 + own in world-writable +t directories (e.g. /tmp), unless the owner of
66391 + the FIFO is the same owner of the directory it's held in. If the sysctl
66392 + option is enabled, a sysctl option with name "fifo_restrictions" is
66393 + created.
66394 +
66395 +config GRKERNSEC_SYSFS_RESTRICT
66396 + bool "Sysfs/debugfs restriction"
66397 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
66398 + depends on SYSFS
66399 + help
66400 + If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
66401 + any filesystem normally mounted under it (e.g. debugfs) will be
66402 + mostly accessible only by root. These filesystems generally provide access
66403 + to hardware and debug information that isn't appropriate for unprivileged
66404 + users of the system. Sysfs and debugfs have also become a large source
66405 + of new vulnerabilities, ranging from infoleaks to local compromise.
66406 + There has been very little oversight with an eye toward security involved
66407 + in adding new exporters of information to these filesystems, so their
66408 + use is discouraged.
66409 + For reasons of compatibility, a few directories have been whitelisted
66410 + for access by non-root users:
66411 + /sys/fs/selinux
66412 + /sys/fs/fuse
66413 + /sys/devices/system/cpu
66414 +
66415 +config GRKERNSEC_ROFS
66416 + bool "Runtime read-only mount protection"
66417 + depends on SYSCTL
66418 + help
66419 + If you say Y here, a sysctl option with name "romount_protect" will
66420 + be created. By setting this option to 1 at runtime, filesystems
66421 + will be protected in the following ways:
66422 + * No new writable mounts will be allowed
66423 + * Existing read-only mounts won't be able to be remounted read/write
66424 + * Write operations will be denied on all block devices
66425 + This option acts independently of grsec_lock: once it is set to 1,
66426 + it cannot be turned off. Therefore, please be mindful of the resulting
66427 + behavior if this option is enabled in an init script on a read-only
66428 + filesystem.
66429 + Also be aware that as with other root-focused features, GRKERNSEC_KMEM
66430 + and GRKERNSEC_IO should be enabled and module loading disabled via
66431 + config or at runtime.
66432 + This feature is mainly intended for secure embedded systems.
66433 +
66434 +
66435 +config GRKERNSEC_DEVICE_SIDECHANNEL
66436 + bool "Eliminate stat/notify-based device sidechannels"
66437 + default y if GRKERNSEC_CONFIG_AUTO
66438 + help
66439 + If you say Y here, timing analyses on block or character
66440 + devices like /dev/ptmx using stat or inotify/dnotify/fanotify
66441 + will be thwarted for unprivileged users. If a process without
66442 + CAP_MKNOD stats such a device, the last access and last modify times
66443 + will match the device's create time. No access or modify events
66444 + will be triggered through inotify/dnotify/fanotify for such devices.
66445 + This feature will prevent attacks that may at a minimum
66446 + allow an attacker to determine the administrator's password length.
66447 +
66448 +config GRKERNSEC_CHROOT
66449 + bool "Chroot jail restrictions"
66450 + default y if GRKERNSEC_CONFIG_AUTO
66451 + help
66452 + If you say Y here, you will be able to choose several options that will
66453 + make breaking out of a chrooted jail much more difficult. If you
66454 + encounter no software incompatibilities with the following options, it
66455 + is recommended that you enable each one.
66456 +
66457 + Note that the chroot restrictions are not intended to apply to "chroots"
66458 + to directories that are simple bind mounts of the global root filesystem.
66459 + For several other reasons, a user shouldn't expect any significant
66460 + security by performing such a chroot.
66461 +
66462 +config GRKERNSEC_CHROOT_MOUNT
66463 + bool "Deny mounts"
66464 + default y if GRKERNSEC_CONFIG_AUTO
66465 + depends on GRKERNSEC_CHROOT
66466 + help
66467 + If you say Y here, processes inside a chroot will not be able to
66468 + mount or remount filesystems. If the sysctl option is enabled, a
66469 + sysctl option with name "chroot_deny_mount" is created.
66470 +
66471 +config GRKERNSEC_CHROOT_DOUBLE
66472 + bool "Deny double-chroots"
66473 + default y if GRKERNSEC_CONFIG_AUTO
66474 + depends on GRKERNSEC_CHROOT
66475 + help
66476 + If you say Y here, processes inside a chroot will not be able to chroot
66477 + again outside the chroot. This is a widely used method of breaking
66478 + out of a chroot jail and should not be allowed. If the sysctl
66479 + option is enabled, a sysctl option with name
66480 + "chroot_deny_chroot" is created.
66481 +
66482 +config GRKERNSEC_CHROOT_PIVOT
66483 + bool "Deny pivot_root in chroot"
66484 + default y if GRKERNSEC_CONFIG_AUTO
66485 + depends on GRKERNSEC_CHROOT
66486 + help
66487 + If you say Y here, processes inside a chroot will not be able to use
66488 + a function called pivot_root() that was introduced in Linux 2.3.41. It
66489 + works similar to chroot in that it changes the root filesystem. This
66490 + function could be misused in a chrooted process to attempt to break out
66491 + of the chroot, and therefore should not be allowed. If the sysctl
66492 + option is enabled, a sysctl option with name "chroot_deny_pivot" is
66493 + created.
66494 +
66495 +config GRKERNSEC_CHROOT_CHDIR
66496 + bool "Enforce chdir(\"/\") on all chroots"
66497 + default y if GRKERNSEC_CONFIG_AUTO
66498 + depends on GRKERNSEC_CHROOT
66499 + help
66500 + If you say Y here, the current working directory of all newly-chrooted
66501 + applications will be set to the the root directory of the chroot.
66502 + The man page on chroot(2) states:
66503 + Note that this call does not change the current working
66504 + directory, so that `.' can be outside the tree rooted at
66505 + `/'. In particular, the super-user can escape from a
66506 + `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
66507 +
66508 + It is recommended that you say Y here, since it's not known to break
66509 + any software. If the sysctl option is enabled, a sysctl option with
66510 + name "chroot_enforce_chdir" is created.
66511 +
66512 +config GRKERNSEC_CHROOT_CHMOD
66513 + bool "Deny (f)chmod +s"
66514 + default y if GRKERNSEC_CONFIG_AUTO
66515 + depends on GRKERNSEC_CHROOT
66516 + help
66517 + If you say Y here, processes inside a chroot will not be able to chmod
66518 + or fchmod files to make them have suid or sgid bits. This protects
66519 + against another published method of breaking a chroot. If the sysctl
66520 + option is enabled, a sysctl option with name "chroot_deny_chmod" is
66521 + created.
66522 +
66523 +config GRKERNSEC_CHROOT_FCHDIR
66524 + bool "Deny fchdir and fhandle out of chroot"
66525 + default y if GRKERNSEC_CONFIG_AUTO
66526 + depends on GRKERNSEC_CHROOT
66527 + help
66528 + If you say Y here, a well-known method of breaking chroots by fchdir'ing
66529 + to a file descriptor of the chrooting process that points to a directory
66530 + outside the filesystem will be stopped. Additionally, this option prevents
66531 + use of the recently-created syscall for opening files by a guessable "file
66532 + handle" inside a chroot. If the sysctl option is enabled, a sysctl option
66533 + with name "chroot_deny_fchdir" is created.
66534 +
66535 +config GRKERNSEC_CHROOT_MKNOD
66536 + bool "Deny mknod"
66537 + default y if GRKERNSEC_CONFIG_AUTO
66538 + depends on GRKERNSEC_CHROOT
66539 + help
66540 + If you say Y here, processes inside a chroot will not be allowed to
66541 + mknod. The problem with using mknod inside a chroot is that it
66542 + would allow an attacker to create a device entry that is the same
66543 + as one on the physical root of your system, which could range from
66544 + anything from the console device to a device for your harddrive (which
66545 + they could then use to wipe the drive or steal data). It is recommended
66546 + that you say Y here, unless you run into software incompatibilities.
66547 + If the sysctl option is enabled, a sysctl option with name
66548 + "chroot_deny_mknod" is created.
66549 +
66550 +config GRKERNSEC_CHROOT_SHMAT
66551 + bool "Deny shmat() out of chroot"
66552 + default y if GRKERNSEC_CONFIG_AUTO
66553 + depends on GRKERNSEC_CHROOT
66554 + help
66555 + If you say Y here, processes inside a chroot will not be able to attach
66556 + to shared memory segments that were created outside of the chroot jail.
66557 + It is recommended that you say Y here. If the sysctl option is enabled,
66558 + a sysctl option with name "chroot_deny_shmat" is created.
66559 +
66560 +config GRKERNSEC_CHROOT_UNIX
66561 + bool "Deny access to abstract AF_UNIX sockets out of chroot"
66562 + default y if GRKERNSEC_CONFIG_AUTO
66563 + depends on GRKERNSEC_CHROOT
66564 + help
66565 + If you say Y here, processes inside a chroot will not be able to
66566 + connect to abstract (meaning not belonging to a filesystem) Unix
66567 + domain sockets that were bound outside of a chroot. It is recommended
66568 + that you say Y here. If the sysctl option is enabled, a sysctl option
66569 + with name "chroot_deny_unix" is created.
66570 +
66571 +config GRKERNSEC_CHROOT_FINDTASK
66572 + bool "Protect outside processes"
66573 + default y if GRKERNSEC_CONFIG_AUTO
66574 + depends on GRKERNSEC_CHROOT
66575 + help
66576 + If you say Y here, processes inside a chroot will not be able to
66577 + kill, send signals with fcntl, ptrace, capget, getpgid, setpgid,
66578 + getsid, or view any process outside of the chroot. If the sysctl
66579 + option is enabled, a sysctl option with name "chroot_findtask" is
66580 + created.
66581 +
66582 +config GRKERNSEC_CHROOT_NICE
66583 + bool "Restrict priority changes"
66584 + default y if GRKERNSEC_CONFIG_AUTO
66585 + depends on GRKERNSEC_CHROOT
66586 + help
66587 + If you say Y here, processes inside a chroot will not be able to raise
66588 + the priority of processes in the chroot, or alter the priority of
66589 + processes outside the chroot. This provides more security than simply
66590 + removing CAP_SYS_NICE from the process' capability set. If the
66591 + sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
66592 + is created.
66593 +
66594 +config GRKERNSEC_CHROOT_SYSCTL
66595 + bool "Deny sysctl writes"
66596 + default y if GRKERNSEC_CONFIG_AUTO
66597 + depends on GRKERNSEC_CHROOT
66598 + help
66599 + If you say Y here, an attacker in a chroot will not be able to
66600 + write to sysctl entries, either by sysctl(2) or through a /proc
66601 + interface. It is strongly recommended that you say Y here. If the
66602 + sysctl option is enabled, a sysctl option with name
66603 + "chroot_deny_sysctl" is created.
66604 +
66605 +config GRKERNSEC_CHROOT_CAPS
66606 + bool "Capability restrictions"
66607 + default y if GRKERNSEC_CONFIG_AUTO
66608 + depends on GRKERNSEC_CHROOT
66609 + help
66610 + If you say Y here, the capabilities on all processes within a
66611 + chroot jail will be lowered to stop module insertion, raw i/o,
66612 + system and net admin tasks, rebooting the system, modifying immutable
66613 + files, modifying IPC owned by another, and changing the system time.
66614 + This is left an option because it can break some apps. Disable this
66615 + if your chrooted apps are having problems performing those kinds of
66616 + tasks. If the sysctl option is enabled, a sysctl option with
66617 + name "chroot_caps" is created.
66618 +
66619 +config GRKERNSEC_CHROOT_INITRD
66620 + bool "Exempt initrd tasks from restrictions"
66621 + default y if GRKERNSEC_CONFIG_AUTO
66622 + depends on GRKERNSEC_CHROOT && BLK_DEV_INITRD
66623 + help
66624 + If you say Y here, tasks started prior to init will be exempted from
66625 + grsecurity's chroot restrictions. This option is mainly meant to
66626 + resolve Plymouth's performing privileged operations unnecessarily
66627 + in a chroot.
66628 +
66629 +endmenu
66630 +menu "Kernel Auditing"
66631 +depends on GRKERNSEC
66632 +
66633 +config GRKERNSEC_AUDIT_GROUP
66634 + bool "Single group for auditing"
66635 + help
66636 + If you say Y here, the exec and chdir logging features will only operate
66637 + on a group you specify. This option is recommended if you only want to
66638 + watch certain users instead of having a large amount of logs from the
66639 + entire system. If the sysctl option is enabled, a sysctl option with
66640 + name "audit_group" is created.
66641 +
66642 +config GRKERNSEC_AUDIT_GID
66643 + int "GID for auditing"
66644 + depends on GRKERNSEC_AUDIT_GROUP
66645 + default 1007
66646 +
66647 +config GRKERNSEC_EXECLOG
66648 + bool "Exec logging"
66649 + help
66650 + If you say Y here, all execve() calls will be logged (since the
66651 + other exec*() calls are frontends to execve(), all execution
66652 + will be logged). Useful for shell-servers that like to keep track
66653 + of their users. If the sysctl option is enabled, a sysctl option with
66654 + name "exec_logging" is created.
66655 + WARNING: This option when enabled will produce a LOT of logs, especially
66656 + on an active system.
66657 +
66658 +config GRKERNSEC_RESLOG
66659 + bool "Resource logging"
66660 + default y if GRKERNSEC_CONFIG_AUTO
66661 + help
66662 + If you say Y here, all attempts to overstep resource limits will
66663 + be logged with the resource name, the requested size, and the current
66664 + limit. It is highly recommended that you say Y here. If the sysctl
66665 + option is enabled, a sysctl option with name "resource_logging" is
66666 + created. If the RBAC system is enabled, the sysctl value is ignored.
66667 +
66668 +config GRKERNSEC_CHROOT_EXECLOG
66669 + bool "Log execs within chroot"
66670 + help
66671 + If you say Y here, all executions inside a chroot jail will be logged
66672 + to syslog. This can cause a large amount of logs if certain
66673 + applications (eg. djb's daemontools) are installed on the system, and
66674 + is therefore left as an option. If the sysctl option is enabled, a
66675 + sysctl option with name "chroot_execlog" is created.
66676 +
66677 +config GRKERNSEC_AUDIT_PTRACE
66678 + bool "Ptrace logging"
66679 + help
66680 + If you say Y here, all attempts to attach to a process via ptrace
66681 + will be logged. If the sysctl option is enabled, a sysctl option
66682 + with name "audit_ptrace" is created.
66683 +
66684 +config GRKERNSEC_AUDIT_CHDIR
66685 + bool "Chdir logging"
66686 + help
66687 + If you say Y here, all chdir() calls will be logged. If the sysctl
66688 + option is enabled, a sysctl option with name "audit_chdir" is created.
66689 +
66690 +config GRKERNSEC_AUDIT_MOUNT
66691 + bool "(Un)Mount logging"
66692 + help
66693 + If you say Y here, all mounts and unmounts will be logged. If the
66694 + sysctl option is enabled, a sysctl option with name "audit_mount" is
66695 + created.
66696 +
66697 +config GRKERNSEC_SIGNAL
66698 + bool "Signal logging"
66699 + default y if GRKERNSEC_CONFIG_AUTO
66700 + help
66701 + If you say Y here, certain important signals will be logged, such as
66702 + SIGSEGV, which will as a result inform you of when a error in a program
66703 + occurred, which in some cases could mean a possible exploit attempt.
66704 + If the sysctl option is enabled, a sysctl option with name
66705 + "signal_logging" is created.
66706 +
66707 +config GRKERNSEC_FORKFAIL
66708 + bool "Fork failure logging"
66709 + help
66710 + If you say Y here, all failed fork() attempts will be logged.
66711 + This could suggest a fork bomb, or someone attempting to overstep
66712 + their process limit. If the sysctl option is enabled, a sysctl option
66713 + with name "forkfail_logging" is created.
66714 +
66715 +config GRKERNSEC_TIME
66716 + bool "Time change logging"
66717 + default y if GRKERNSEC_CONFIG_AUTO
66718 + help
66719 + If you say Y here, any changes of the system clock will be logged.
66720 + If the sysctl option is enabled, a sysctl option with name
66721 + "timechange_logging" is created.
66722 +
66723 +config GRKERNSEC_PROC_IPADDR
66724 + bool "/proc/<pid>/ipaddr support"
66725 + default y if GRKERNSEC_CONFIG_AUTO
66726 + help
66727 + If you say Y here, a new entry will be added to each /proc/<pid>
66728 + directory that contains the IP address of the person using the task.
66729 + The IP is carried across local TCP and AF_UNIX stream sockets.
66730 + This information can be useful for IDS/IPSes to perform remote response
66731 + to a local attack. The entry is readable by only the owner of the
66732 + process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
66733 + the RBAC system), and thus does not create privacy concerns.
66734 +
66735 +config GRKERNSEC_RWXMAP_LOG
66736 + bool 'Denied RWX mmap/mprotect logging'
66737 + default y if GRKERNSEC_CONFIG_AUTO
66738 + depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
66739 + help
66740 + If you say Y here, calls to mmap() and mprotect() with explicit
66741 + usage of PROT_WRITE and PROT_EXEC together will be logged when
66742 + denied by the PAX_MPROTECT feature. This feature will also
66743 + log other problematic scenarios that can occur when PAX_MPROTECT
66744 + is enabled on a binary, like textrels and PT_GNU_STACK. If the
66745 + sysctl option is enabled, a sysctl option with name "rwxmap_logging"
66746 + is created.
66747 +
66748 +endmenu
66749 +
66750 +menu "Executable Protections"
66751 +depends on GRKERNSEC
66752 +
66753 +config GRKERNSEC_DMESG
66754 + bool "Dmesg(8) restriction"
66755 + default y if GRKERNSEC_CONFIG_AUTO
66756 + help
66757 + If you say Y here, non-root users will not be able to use dmesg(8)
66758 + to view the contents of the kernel's circular log buffer.
66759 + The kernel's log buffer often contains kernel addresses and other
66760 + identifying information useful to an attacker in fingerprinting a
66761 + system for a targeted exploit.
66762 + If the sysctl option is enabled, a sysctl option with name "dmesg" is
66763 + created.
66764 +
66765 +config GRKERNSEC_HARDEN_PTRACE
66766 + bool "Deter ptrace-based process snooping"
66767 + default y if GRKERNSEC_CONFIG_AUTO
66768 + help
66769 + If you say Y here, TTY sniffers and other malicious monitoring
66770 + programs implemented through ptrace will be defeated. If you
66771 + have been using the RBAC system, this option has already been
66772 + enabled for several years for all users, with the ability to make
66773 + fine-grained exceptions.
66774 +
66775 + This option only affects the ability of non-root users to ptrace
66776 + processes that are not a descendent of the ptracing process.
66777 + This means that strace ./binary and gdb ./binary will still work,
66778 + but attaching to arbitrary processes will not. If the sysctl
66779 + option is enabled, a sysctl option with name "harden_ptrace" is
66780 + created.
66781 +
66782 +config GRKERNSEC_PTRACE_READEXEC
66783 + bool "Require read access to ptrace sensitive binaries"
66784 + default y if GRKERNSEC_CONFIG_AUTO
66785 + help
66786 + If you say Y here, unprivileged users will not be able to ptrace unreadable
66787 + binaries. This option is useful in environments that
66788 + remove the read bits (e.g. file mode 4711) from suid binaries to
66789 + prevent infoleaking of their contents. This option adds
66790 + consistency to the use of that file mode, as the binary could normally
66791 + be read out when run without privileges while ptracing.
66792 +
66793 + If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
66794 + is created.
66795 +
66796 +config GRKERNSEC_SETXID
66797 + bool "Enforce consistent multithreaded privileges"
66798 + default y if GRKERNSEC_CONFIG_AUTO
66799 + depends on (X86 || SPARC64 || PPC || ARM || MIPS)
66800 + help
66801 + If you say Y here, a change from a root uid to a non-root uid
66802 + in a multithreaded application will cause the resulting uids,
66803 + gids, supplementary groups, and capabilities in that thread
66804 + to be propagated to the other threads of the process. In most
66805 + cases this is unnecessary, as glibc will emulate this behavior
66806 + on behalf of the application. Other libcs do not act in the
66807 + same way, allowing the other threads of the process to continue
66808 + running with root privileges. If the sysctl option is enabled,
66809 + a sysctl option with name "consistent_setxid" is created.
66810 +
66811 +config GRKERNSEC_HARDEN_IPC
66812 + bool "Disallow access to overly-permissive IPC objects"
66813 + default y if GRKERNSEC_CONFIG_AUTO
66814 + depends on SYSVIPC
66815 + help
66816 + If you say Y here, access to overly-permissive IPC objects (shared
66817 + memory, message queues, and semaphores) will be denied for processes
66818 + given the following criteria beyond normal permission checks:
66819 + 1) If the IPC object is world-accessible and the euid doesn't match
66820 + that of the creator or current uid for the IPC object
66821 + 2) If the IPC object is group-accessible and the egid doesn't
66822 + match that of the creator or current gid for the IPC object
66823 + It's a common error to grant too much permission to these objects,
66824 + with impact ranging from denial of service and information leaking to
66825 + privilege escalation. This feature was developed in response to
66826 + research by Tim Brown:
66827 + http://labs.portcullis.co.uk/whitepapers/memory-squatting-attacks-on-system-v-shared-memory/
66828 + who found hundreds of such insecure usages. Processes with
66829 + CAP_IPC_OWNER are still permitted to access these IPC objects.
66830 + If the sysctl option is enabled, a sysctl option with name
66831 + "harden_ipc" is created.
66832 +
66833 +config GRKERNSEC_TPE
66834 + bool "Trusted Path Execution (TPE)"
66835 + default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
66836 + help
66837 + If you say Y here, you will be able to choose a gid to add to the
66838 + supplementary groups of users you want to mark as "untrusted."
66839 + These users will not be able to execute any files that are not in
66840 + root-owned directories writable only by root. If the sysctl option
66841 + is enabled, a sysctl option with name "tpe" is created.
66842 +
66843 +config GRKERNSEC_TPE_ALL
66844 + bool "Partially restrict all non-root users"
66845 + depends on GRKERNSEC_TPE
66846 + help
66847 + If you say Y here, all non-root users will be covered under
66848 + a weaker TPE restriction. This is separate from, and in addition to,
66849 + the main TPE options that you have selected elsewhere. Thus, if a
66850 + "trusted" GID is chosen, this restriction applies to even that GID.
66851 + Under this restriction, all non-root users will only be allowed to
66852 + execute files in directories they own that are not group or
66853 + world-writable, or in directories owned by root and writable only by
66854 + root. If the sysctl option is enabled, a sysctl option with name
66855 + "tpe_restrict_all" is created.
66856 +
66857 +config GRKERNSEC_TPE_INVERT
66858 + bool "Invert GID option"
66859 + depends on GRKERNSEC_TPE
66860 + help
66861 + If you say Y here, the group you specify in the TPE configuration will
66862 + decide what group TPE restrictions will be *disabled* for. This
66863 + option is useful if you want TPE restrictions to be applied to most
66864 + users on the system. If the sysctl option is enabled, a sysctl option
66865 + with name "tpe_invert" is created. Unlike other sysctl options, this
66866 + entry will default to on for backward-compatibility.
66867 +
66868 +config GRKERNSEC_TPE_GID
66869 + int
66870 + default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
66871 + default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
66872 +
66873 +config GRKERNSEC_TPE_UNTRUSTED_GID
66874 + int "GID for TPE-untrusted users"
66875 + depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
66876 + default 1005
66877 + help
66878 + Setting this GID determines what group TPE restrictions will be
66879 + *enabled* for. If the sysctl option is enabled, a sysctl option
66880 + with name "tpe_gid" is created.
66881 +
66882 +config GRKERNSEC_TPE_TRUSTED_GID
66883 + int "GID for TPE-trusted users"
66884 + depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
66885 + default 1005
66886 + help
66887 + Setting this GID determines what group TPE restrictions will be
66888 + *disabled* for. If the sysctl option is enabled, a sysctl option
66889 + with name "tpe_gid" is created.
66890 +
66891 +endmenu
66892 +menu "Network Protections"
66893 +depends on GRKERNSEC
66894 +
66895 +config GRKERNSEC_RANDNET
66896 + bool "Larger entropy pools"
66897 + default y if GRKERNSEC_CONFIG_AUTO
66898 + help
66899 + If you say Y here, the entropy pools used for many features of Linux
66900 + and grsecurity will be doubled in size. Since several grsecurity
66901 + features use additional randomness, it is recommended that you say Y
66902 + here. Saying Y here has a similar effect as modifying
66903 + /proc/sys/kernel/random/poolsize.
66904 +
66905 +config GRKERNSEC_BLACKHOLE
66906 + bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
66907 + default y if GRKERNSEC_CONFIG_AUTO
66908 + depends on NET
66909 + help
66910 + If you say Y here, neither TCP resets nor ICMP
66911 + destination-unreachable packets will be sent in response to packets
66912 + sent to ports for which no associated listening process exists.
66913 + This feature supports both IPV4 and IPV6 and exempts the
66914 + loopback interface from blackholing. Enabling this feature
66915 + makes a host more resilient to DoS attacks and reduces network
66916 + visibility against scanners.
66917 +
66918 + The blackhole feature as-implemented is equivalent to the FreeBSD
66919 + blackhole feature, as it prevents RST responses to all packets, not
66920 + just SYNs. Under most application behavior this causes no
66921 + problems, but applications (like haproxy) may not close certain
66922 + connections in a way that cleanly terminates them on the remote
66923 + end, leaving the remote host in LAST_ACK state. Because of this
66924 + side-effect and to prevent intentional LAST_ACK DoSes, this
66925 + feature also adds automatic mitigation against such attacks.
66926 + The mitigation drastically reduces the amount of time a socket
66927 + can spend in LAST_ACK state. If you're using haproxy and not
66928 + all servers it connects to have this option enabled, consider
66929 + disabling this feature on the haproxy host.
66930 +
66931 + If the sysctl option is enabled, two sysctl options with names
66932 + "ip_blackhole" and "lastack_retries" will be created.
66933 + While "ip_blackhole" takes the standard zero/non-zero on/off
66934 + toggle, "lastack_retries" uses the same kinds of values as
66935 + "tcp_retries1" and "tcp_retries2". The default value of 4
66936 + prevents a socket from lasting more than 45 seconds in LAST_ACK
66937 + state.
66938 +
66939 +config GRKERNSEC_NO_SIMULT_CONNECT
66940 + bool "Disable TCP Simultaneous Connect"
66941 + default y if GRKERNSEC_CONFIG_AUTO
66942 + depends on NET
66943 + help
66944 + If you say Y here, a feature by Willy Tarreau will be enabled that
66945 + removes a weakness in Linux's strict implementation of TCP that
66946 + allows two clients to connect to each other without either entering
66947 + a listening state. The weakness allows an attacker to easily prevent
66948 + a client from connecting to a known server provided the source port
66949 + for the connection is guessed correctly.
66950 +
66951 + As the weakness could be used to prevent an antivirus or IPS from
66952 + fetching updates, or prevent an SSL gateway from fetching a CRL,
66953 + it should be eliminated by enabling this option. Though Linux is
66954 + one of few operating systems supporting simultaneous connect, it
66955 + has no legitimate use in practice and is rarely supported by firewalls.
66956 +
66957 +config GRKERNSEC_SOCKET
66958 + bool "Socket restrictions"
66959 + depends on NET
66960 + help
66961 + If you say Y here, you will be able to choose from several options.
66962 + If you assign a GID on your system and add it to the supplementary
66963 + groups of users you want to restrict socket access to, this patch
66964 + will perform up to three things, based on the option(s) you choose.
66965 +
66966 +config GRKERNSEC_SOCKET_ALL
66967 + bool "Deny any sockets to group"
66968 + depends on GRKERNSEC_SOCKET
66969 + help
66970 + If you say Y here, you will be able to choose a GID of whose users will
66971 + be unable to connect to other hosts from your machine or run server
66972 + applications from your machine. If the sysctl option is enabled, a
66973 + sysctl option with name "socket_all" is created.
66974 +
66975 +config GRKERNSEC_SOCKET_ALL_GID
66976 + int "GID to deny all sockets for"
66977 + depends on GRKERNSEC_SOCKET_ALL
66978 + default 1004
66979 + help
66980 + Here you can choose the GID to disable socket access for. Remember to
66981 + add the users you want socket access disabled for to the GID
66982 + specified here. If the sysctl option is enabled, a sysctl option
66983 + with name "socket_all_gid" is created.
66984 +
66985 +config GRKERNSEC_SOCKET_CLIENT
66986 + bool "Deny client sockets to group"
66987 + depends on GRKERNSEC_SOCKET
66988 + help
66989 + If you say Y here, you will be able to choose a GID of whose users will
66990 + be unable to connect to other hosts from your machine, but will be
66991 + able to run servers. If this option is enabled, all users in the group
66992 + you specify will have to use passive mode when initiating ftp transfers
66993 + from the shell on your machine. If the sysctl option is enabled, a
66994 + sysctl option with name "socket_client" is created.
66995 +
66996 +config GRKERNSEC_SOCKET_CLIENT_GID
66997 + int "GID to deny client sockets for"
66998 + depends on GRKERNSEC_SOCKET_CLIENT
66999 + default 1003
67000 + help
67001 + Here you can choose the GID to disable client socket access for.
67002 + Remember to add the users you want client socket access disabled for to
67003 + the GID specified here. If the sysctl option is enabled, a sysctl
67004 + option with name "socket_client_gid" is created.
67005 +
67006 +config GRKERNSEC_SOCKET_SERVER
67007 + bool "Deny server sockets to group"
67008 + depends on GRKERNSEC_SOCKET
67009 + help
67010 + If you say Y here, you will be able to choose a GID of whose users will
67011 + be unable to run server applications from your machine. If the sysctl
67012 + option is enabled, a sysctl option with name "socket_server" is created.
67013 +
67014 +config GRKERNSEC_SOCKET_SERVER_GID
67015 + int "GID to deny server sockets for"
67016 + depends on GRKERNSEC_SOCKET_SERVER
67017 + default 1002
67018 + help
67019 + Here you can choose the GID to disable server socket access for.
67020 + Remember to add the users you want server socket access disabled for to
67021 + the GID specified here. If the sysctl option is enabled, a sysctl
67022 + option with name "socket_server_gid" is created.
67023 +
67024 +endmenu
67025 +
67026 +menu "Physical Protections"
67027 +depends on GRKERNSEC
67028 +
67029 +config GRKERNSEC_DENYUSB
67030 + bool "Deny new USB connections after toggle"
67031 + default y if GRKERNSEC_CONFIG_AUTO
67032 + depends on SYSCTL && USB_SUPPORT
67033 + help
67034 + If you say Y here, a new sysctl option with name "deny_new_usb"
67035 + will be created. Setting its value to 1 will prevent any new
67036 + USB devices from being recognized by the OS. Any attempted USB
67037 + device insertion will be logged. This option is intended to be
67038 + used against custom USB devices designed to exploit vulnerabilities
67039 + in various USB device drivers.
67040 +
67041 + For greatest effectiveness, this sysctl should be set after any
67042 + relevant init scripts. This option is safe to enable in distros
67043 + as each user can choose whether or not to toggle the sysctl.
67044 +
67045 +config GRKERNSEC_DENYUSB_FORCE
67046 + bool "Reject all USB devices not connected at boot"
67047 + select USB
67048 + depends on GRKERNSEC_DENYUSB
67049 + help
67050 + If you say Y here, a variant of GRKERNSEC_DENYUSB will be enabled
67051 + that doesn't involve a sysctl entry. This option should only be
67052 + enabled if you're sure you want to deny all new USB connections
67053 + at runtime and don't want to modify init scripts. This should not
67054 + be enabled by distros. It forces the core USB code to be built
67055 + into the kernel image so that all devices connected at boot time
67056 + can be recognized and new USB device connections can be prevented
67057 + prior to init running.
67058 +
67059 +endmenu
67060 +
67061 +menu "Sysctl Support"
67062 +depends on GRKERNSEC && SYSCTL
67063 +
67064 +config GRKERNSEC_SYSCTL
67065 + bool "Sysctl support"
67066 + default y if GRKERNSEC_CONFIG_AUTO
67067 + help
67068 + If you say Y here, you will be able to change the options that
67069 + grsecurity runs with at bootup, without having to recompile your
67070 + kernel. You can echo values to files in /proc/sys/kernel/grsecurity
67071 + to enable (1) or disable (0) various features. All the sysctl entries
67072 + are mutable until the "grsec_lock" entry is set to a non-zero value.
67073 + All features enabled in the kernel configuration are disabled at boot
67074 + if you do not say Y to the "Turn on features by default" option.
67075 + All options should be set at startup, and the grsec_lock entry should
67076 + be set to a non-zero value after all the options are set.
67077 + *THIS IS EXTREMELY IMPORTANT*
67078 +
67079 +config GRKERNSEC_SYSCTL_DISTRO
67080 + bool "Extra sysctl support for distro makers (READ HELP)"
67081 + depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
67082 + help
67083 + If you say Y here, additional sysctl options will be created
67084 + for features that affect processes running as root. Therefore,
67085 + it is critical when using this option that the grsec_lock entry be
67086 + enabled after boot. Only distros with prebuilt kernel packages
67087 + with this option enabled that can ensure grsec_lock is enabled
67088 + after boot should use this option.
67089 + *Failure to set grsec_lock after boot makes all grsec features
67090 + this option covers useless*
67091 +
67092 + Currently this option creates the following sysctl entries:
67093 + "Disable Privileged I/O": "disable_priv_io"
67094 +
67095 +config GRKERNSEC_SYSCTL_ON
67096 + bool "Turn on features by default"
67097 + default y if GRKERNSEC_CONFIG_AUTO
67098 + depends on GRKERNSEC_SYSCTL
67099 + help
67100 + If you say Y here, instead of having all features enabled in the
67101 + kernel configuration disabled at boot time, the features will be
67102 + enabled at boot time. It is recommended you say Y here unless
67103 + there is some reason you would want all sysctl-tunable features to
67104 + be disabled by default. As mentioned elsewhere, it is important
67105 + to enable the grsec_lock entry once you have finished modifying
67106 + the sysctl entries.
67107 +
67108 +endmenu
67109 +menu "Logging Options"
67110 +depends on GRKERNSEC
67111 +
67112 +config GRKERNSEC_FLOODTIME
67113 + int "Seconds in between log messages (minimum)"
67114 + default 10
67115 + help
67116 + This option allows you to enforce the number of seconds between
67117 + grsecurity log messages. The default should be suitable for most
67118 + people, however, if you choose to change it, choose a value small enough
67119 + to allow informative logs to be produced, but large enough to
67120 + prevent flooding.
67121 +
67122 + Setting both this value and GRKERNSEC_FLOODBURST to 0 will disable
67123 + any rate limiting on grsecurity log messages.
67124 +
67125 +config GRKERNSEC_FLOODBURST
67126 + int "Number of messages in a burst (maximum)"
67127 + default 6
67128 + help
67129 + This option allows you to choose the maximum number of messages allowed
67130 + within the flood time interval you chose in a separate option. The
67131 + default should be suitable for most people, however if you find that
67132 + many of your logs are being interpreted as flooding, you may want to
67133 + raise this value.
67134 +
67135 + Setting both this value and GRKERNSEC_FLOODTIME to 0 will disable
67136 + any rate limiting on grsecurity log messages.
67137 +
67138 +endmenu
67139 diff --git a/grsecurity/Makefile b/grsecurity/Makefile
67140 new file mode 100644
67141 index 0000000..30ababb
67142 --- /dev/null
67143 +++ b/grsecurity/Makefile
67144 @@ -0,0 +1,54 @@
67145 +# grsecurity – access control and security hardening for Linux
67146 +# All code in this directory and various hooks located throughout the Linux kernel are
67147 +# Copyright (C) 2001-2014 Bradley Spengler, Open Source Security, Inc.
67148 +# http://www.grsecurity.net spender@grsecurity.net
67149 +#
67150 +# This program is free software; you can redistribute it and/or
67151 +# modify it under the terms of the GNU General Public License version 2
67152 +# as published by the Free Software Foundation.
67153 +#
67154 +# This program is distributed in the hope that it will be useful,
67155 +# but WITHOUT ANY WARRANTY; without even the implied warranty of
67156 +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
67157 +# GNU General Public License for more details.
67158 +#
67159 +# You should have received a copy of the GNU General Public License
67160 +# along with this program; if not, write to the Free Software
67161 +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
67162 +
67163 +KBUILD_CFLAGS += -Werror
67164 +
67165 +obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
67166 + grsec_mount.o grsec_sig.o grsec_sysctl.o \
67167 + grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o \
67168 + grsec_usb.o grsec_ipc.o grsec_proc.o
67169 +
67170 +obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
67171 + gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
67172 + gracl_learn.o grsec_log.o gracl_policy.o
67173 +ifdef CONFIG_COMPAT
67174 +obj-$(CONFIG_GRKERNSEC) += gracl_compat.o
67175 +endif
67176 +
67177 +obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
67178 +
67179 +ifdef CONFIG_NET
67180 +obj-y += grsec_sock.o
67181 +obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
67182 +endif
67183 +
67184 +ifndef CONFIG_GRKERNSEC
67185 +obj-y += grsec_disabled.o
67186 +endif
67187 +
67188 +ifdef CONFIG_GRKERNSEC_HIDESYM
67189 +extra-y := grsec_hidesym.o
67190 +$(obj)/grsec_hidesym.o:
67191 + @-chmod -f 500 /boot
67192 + @-chmod -f 500 /lib/modules
67193 + @-chmod -f 500 /lib64/modules
67194 + @-chmod -f 500 /lib32/modules
67195 + @-chmod -f 700 .
67196 + @-chmod -f 700 $(objtree)
67197 + @echo ' grsec: protected kernel image paths'
67198 +endif
67199 diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
67200 new file mode 100644
67201 index 0000000..58223f6
67202 --- /dev/null
67203 +++ b/grsecurity/gracl.c
67204 @@ -0,0 +1,2702 @@
67205 +#include <linux/kernel.h>
67206 +#include <linux/module.h>
67207 +#include <linux/sched.h>
67208 +#include <linux/mm.h>
67209 +#include <linux/file.h>
67210 +#include <linux/fs.h>
67211 +#include <linux/namei.h>
67212 +#include <linux/mount.h>
67213 +#include <linux/tty.h>
67214 +#include <linux/proc_fs.h>
67215 +#include <linux/lglock.h>
67216 +#include <linux/slab.h>
67217 +#include <linux/vmalloc.h>
67218 +#include <linux/types.h>
67219 +#include <linux/sysctl.h>
67220 +#include <linux/netdevice.h>
67221 +#include <linux/ptrace.h>
67222 +#include <linux/gracl.h>
67223 +#include <linux/gralloc.h>
67224 +#include <linux/security.h>
67225 +#include <linux/grinternal.h>
67226 +#include <linux/pid_namespace.h>
67227 +#include <linux/stop_machine.h>
67228 +#include <linux/fdtable.h>
67229 +#include <linux/percpu.h>
67230 +#include <linux/lglock.h>
67231 +#include <linux/hugetlb.h>
67232 +#include <linux/posix-timers.h>
67233 +#include <linux/prefetch.h>
67234 +#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
67235 +#include <linux/magic.h>
67236 +#include <linux/pagemap.h>
67237 +#include "../fs/btrfs/async-thread.h"
67238 +#include "../fs/btrfs/ctree.h"
67239 +#include "../fs/btrfs/btrfs_inode.h"
67240 +#endif
67241 +#include "../fs/mount.h"
67242 +
67243 +#include <asm/uaccess.h>
67244 +#include <asm/errno.h>
67245 +#include <asm/mman.h>
67246 +
67247 +#define FOR_EACH_ROLE_START(role) \
67248 + role = running_polstate.role_list; \
67249 + while (role) {
67250 +
67251 +#define FOR_EACH_ROLE_END(role) \
67252 + role = role->prev; \
67253 + }
67254 +
67255 +extern struct path gr_real_root;
67256 +
67257 +static struct gr_policy_state running_polstate;
67258 +struct gr_policy_state *polstate = &running_polstate;
67259 +extern struct gr_alloc_state *current_alloc_state;
67260 +
67261 +extern char *gr_shared_page[4];
67262 +DEFINE_RWLOCK(gr_inode_lock);
67263 +
67264 +static unsigned int gr_status __read_only = GR_STATUS_INIT;
67265 +
67266 +#ifdef CONFIG_NET
67267 +extern struct vfsmount *sock_mnt;
67268 +#endif
67269 +
67270 +extern struct vfsmount *pipe_mnt;
67271 +extern struct vfsmount *shm_mnt;
67272 +
67273 +#ifdef CONFIG_HUGETLBFS
67274 +extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
67275 +#endif
67276 +
67277 +extern u16 acl_sp_role_value;
67278 +extern struct acl_object_label *fakefs_obj_rw;
67279 +extern struct acl_object_label *fakefs_obj_rwx;
67280 +
67281 +int gr_acl_is_enabled(void)
67282 +{
67283 + return (gr_status & GR_READY);
67284 +}
67285 +
67286 +void gr_enable_rbac_system(void)
67287 +{
67288 + pax_open_kernel();
67289 + gr_status |= GR_READY;
67290 + pax_close_kernel();
67291 +}
67292 +
67293 +int gr_rbac_disable(void *unused)
67294 +{
67295 + pax_open_kernel();
67296 + gr_status &= ~GR_READY;
67297 + pax_close_kernel();
67298 +
67299 + return 0;
67300 +}
67301 +
67302 +static inline dev_t __get_dev(const struct dentry *dentry)
67303 +{
67304 +#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
67305 + if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
67306 + return BTRFS_I(dentry->d_inode)->root->anon_dev;
67307 + else
67308 +#endif
67309 + return dentry->d_sb->s_dev;
67310 +}
67311 +
67312 +dev_t gr_get_dev_from_dentry(struct dentry *dentry)
67313 +{
67314 + return __get_dev(dentry);
67315 +}
67316 +
67317 +static char gr_task_roletype_to_char(struct task_struct *task)
67318 +{
67319 + switch (task->role->roletype &
67320 + (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
67321 + GR_ROLE_SPECIAL)) {
67322 + case GR_ROLE_DEFAULT:
67323 + return 'D';
67324 + case GR_ROLE_USER:
67325 + return 'U';
67326 + case GR_ROLE_GROUP:
67327 + return 'G';
67328 + case GR_ROLE_SPECIAL:
67329 + return 'S';
67330 + }
67331 +
67332 + return 'X';
67333 +}
67334 +
67335 +char gr_roletype_to_char(void)
67336 +{
67337 + return gr_task_roletype_to_char(current);
67338 +}
67339 +
67340 +__inline__ int
67341 +gr_acl_tpe_check(void)
67342 +{
67343 + if (unlikely(!(gr_status & GR_READY)))
67344 + return 0;
67345 + if (current->role->roletype & GR_ROLE_TPE)
67346 + return 1;
67347 + else
67348 + return 0;
67349 +}
67350 +
67351 +int
67352 +gr_handle_rawio(const struct inode *inode)
67353 +{
67354 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
67355 + if (inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR)) &&
67356 + grsec_enable_chroot_caps && proc_is_chrooted(current) &&
67357 + !capable(CAP_SYS_RAWIO))
67358 + return 1;
67359 +#endif
67360 + return 0;
67361 +}
67362 +
67363 +int
67364 +gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
67365 +{
67366 + if (likely(lena != lenb))
67367 + return 0;
67368 +
67369 + return !memcmp(a, b, lena);
67370 +}
67371 +
67372 +static int prepend(char **buffer, int *buflen, const char *str, int namelen)
67373 +{
67374 + *buflen -= namelen;
67375 + if (*buflen < 0)
67376 + return -ENAMETOOLONG;
67377 + *buffer -= namelen;
67378 + memcpy(*buffer, str, namelen);
67379 + return 0;
67380 +}
67381 +
67382 +static int prepend_name(char **buffer, int *buflen, struct qstr *name)
67383 +{
67384 + return prepend(buffer, buflen, name->name, name->len);
67385 +}
67386 +
67387 +static int prepend_path(const struct path *path, struct path *root,
67388 + char **buffer, int *buflen)
67389 +{
67390 + struct dentry *dentry = path->dentry;
67391 + struct vfsmount *vfsmnt = path->mnt;
67392 + struct mount *mnt = real_mount(vfsmnt);
67393 + bool slash = false;
67394 + int error = 0;
67395 +
67396 + while (dentry != root->dentry || vfsmnt != root->mnt) {
67397 + struct dentry * parent;
67398 +
67399 + if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
67400 + /* Global root? */
67401 + if (!mnt_has_parent(mnt)) {
67402 + goto out;
67403 + }
67404 + dentry = mnt->mnt_mountpoint;
67405 + mnt = mnt->mnt_parent;
67406 + vfsmnt = &mnt->mnt;
67407 + continue;
67408 + }
67409 + parent = dentry->d_parent;
67410 + prefetch(parent);
67411 + spin_lock(&dentry->d_lock);
67412 + error = prepend_name(buffer, buflen, &dentry->d_name);
67413 + spin_unlock(&dentry->d_lock);
67414 + if (!error)
67415 + error = prepend(buffer, buflen, "/", 1);
67416 + if (error)
67417 + break;
67418 +
67419 + slash = true;
67420 + dentry = parent;
67421 + }
67422 +
67423 +out:
67424 + if (!error && !slash)
67425 + error = prepend(buffer, buflen, "/", 1);
67426 +
67427 + return error;
67428 +}
67429 +
67430 +/* this must be called with mount_lock and rename_lock held */
67431 +
67432 +static char *__our_d_path(const struct path *path, struct path *root,
67433 + char *buf, int buflen)
67434 +{
67435 + char *res = buf + buflen;
67436 + int error;
67437 +
67438 + prepend(&res, &buflen, "\0", 1);
67439 + error = prepend_path(path, root, &res, &buflen);
67440 + if (error)
67441 + return ERR_PTR(error);
67442 +
67443 + return res;
67444 +}
67445 +
67446 +static char *
67447 +gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
67448 +{
67449 + char *retval;
67450 +
67451 + retval = __our_d_path(path, root, buf, buflen);
67452 + if (unlikely(IS_ERR(retval)))
67453 + retval = strcpy(buf, "<path too long>");
67454 + else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
67455 + retval[1] = '\0';
67456 +
67457 + return retval;
67458 +}
67459 +
67460 +static char *
67461 +__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
67462 + char *buf, int buflen)
67463 +{
67464 + struct path path;
67465 + char *res;
67466 +
67467 + path.dentry = (struct dentry *)dentry;
67468 + path.mnt = (struct vfsmount *)vfsmnt;
67469 +
67470 + /* we can use gr_real_root.dentry, gr_real_root.mnt, because this is only called
67471 + by the RBAC system */
67472 + res = gen_full_path(&path, &gr_real_root, buf, buflen);
67473 +
67474 + return res;
67475 +}
67476 +
67477 +static char *
67478 +d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
67479 + char *buf, int buflen)
67480 +{
67481 + char *res;
67482 + struct path path;
67483 + struct path root;
67484 + struct task_struct *reaper = init_pid_ns.child_reaper;
67485 +
67486 + path.dentry = (struct dentry *)dentry;
67487 + path.mnt = (struct vfsmount *)vfsmnt;
67488 +
67489 + /* we can't use gr_real_root.dentry, gr_real_root.mnt, because they belong only to the RBAC system */
67490 + get_fs_root(reaper->fs, &root);
67491 +
67492 + read_seqlock_excl(&mount_lock);
67493 + write_seqlock(&rename_lock);
67494 + res = gen_full_path(&path, &root, buf, buflen);
67495 + write_sequnlock(&rename_lock);
67496 + read_sequnlock_excl(&mount_lock);
67497 +
67498 + path_put(&root);
67499 + return res;
67500 +}
67501 +
67502 +char *
67503 +gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
67504 +{
67505 + char *ret;
67506 + read_seqlock_excl(&mount_lock);
67507 + write_seqlock(&rename_lock);
67508 + ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
67509 + PAGE_SIZE);
67510 + write_sequnlock(&rename_lock);
67511 + read_sequnlock_excl(&mount_lock);
67512 + return ret;
67513 +}
67514 +
67515 +static char *
67516 +gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
67517 +{
67518 + char *ret;
67519 + char *buf;
67520 + int buflen;
67521 +
67522 + read_seqlock_excl(&mount_lock);
67523 + write_seqlock(&rename_lock);
67524 + buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
67525 + ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
67526 + buflen = (int)(ret - buf);
67527 + if (buflen >= 5)
67528 + prepend(&ret, &buflen, "/proc", 5);
67529 + else
67530 + ret = strcpy(buf, "<path too long>");
67531 + write_sequnlock(&rename_lock);
67532 + read_sequnlock_excl(&mount_lock);
67533 + return ret;
67534 +}
67535 +
67536 +char *
67537 +gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
67538 +{
67539 + return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
67540 + PAGE_SIZE);
67541 +}
67542 +
67543 +char *
67544 +gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
67545 +{
67546 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
67547 + PAGE_SIZE);
67548 +}
67549 +
67550 +char *
67551 +gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
67552 +{
67553 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
67554 + PAGE_SIZE);
67555 +}
67556 +
67557 +char *
67558 +gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
67559 +{
67560 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
67561 + PAGE_SIZE);
67562 +}
67563 +
67564 +char *
67565 +gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
67566 +{
67567 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
67568 + PAGE_SIZE);
67569 +}
67570 +
67571 +__inline__ __u32
67572 +to_gr_audit(const __u32 reqmode)
67573 +{
67574 + /* masks off auditable permission flags, then shifts them to create
67575 + auditing flags, and adds the special case of append auditing if
67576 + we're requesting write */
67577 + return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
67578 +}
67579 +
67580 +struct acl_role_label *
67581 +__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid,
67582 + const gid_t gid)
67583 +{
67584 + unsigned int index = gr_rhash(uid, GR_ROLE_USER, state->acl_role_set.r_size);
67585 + struct acl_role_label *match;
67586 + struct role_allowed_ip *ipp;
67587 + unsigned int x;
67588 + u32 curr_ip = task->signal->saved_ip;
67589 +
67590 + match = state->acl_role_set.r_hash[index];
67591 +
67592 + while (match) {
67593 + if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
67594 + for (x = 0; x < match->domain_child_num; x++) {
67595 + if (match->domain_children[x] == uid)
67596 + goto found;
67597 + }
67598 + } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
67599 + break;
67600 + match = match->next;
67601 + }
67602 +found:
67603 + if (match == NULL) {
67604 + try_group:
67605 + index = gr_rhash(gid, GR_ROLE_GROUP, state->acl_role_set.r_size);
67606 + match = state->acl_role_set.r_hash[index];
67607 +
67608 + while (match) {
67609 + if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
67610 + for (x = 0; x < match->domain_child_num; x++) {
67611 + if (match->domain_children[x] == gid)
67612 + goto found2;
67613 + }
67614 + } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
67615 + break;
67616 + match = match->next;
67617 + }
67618 +found2:
67619 + if (match == NULL)
67620 + match = state->default_role;
67621 + if (match->allowed_ips == NULL)
67622 + return match;
67623 + else {
67624 + for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
67625 + if (likely
67626 + ((ntohl(curr_ip) & ipp->netmask) ==
67627 + (ntohl(ipp->addr) & ipp->netmask)))
67628 + return match;
67629 + }
67630 + match = state->default_role;
67631 + }
67632 + } else if (match->allowed_ips == NULL) {
67633 + return match;
67634 + } else {
67635 + for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
67636 + if (likely
67637 + ((ntohl(curr_ip) & ipp->netmask) ==
67638 + (ntohl(ipp->addr) & ipp->netmask)))
67639 + return match;
67640 + }
67641 + goto try_group;
67642 + }
67643 +
67644 + return match;
67645 +}
67646 +
67647 +static struct acl_role_label *
67648 +lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
67649 + const gid_t gid)
67650 +{
67651 + return __lookup_acl_role_label(&running_polstate, task, uid, gid);
67652 +}
67653 +
67654 +struct acl_subject_label *
67655 +lookup_acl_subj_label(const ino_t ino, const dev_t dev,
67656 + const struct acl_role_label *role)
67657 +{
67658 + unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
67659 + struct acl_subject_label *match;
67660 +
67661 + match = role->subj_hash[index];
67662 +
67663 + while (match && (match->inode != ino || match->device != dev ||
67664 + (match->mode & GR_DELETED))) {
67665 + match = match->next;
67666 + }
67667 +
67668 + if (match && !(match->mode & GR_DELETED))
67669 + return match;
67670 + else
67671 + return NULL;
67672 +}
67673 +
67674 +struct acl_subject_label *
67675 +lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev,
67676 + const struct acl_role_label *role)
67677 +{
67678 + unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
67679 + struct acl_subject_label *match;
67680 +
67681 + match = role->subj_hash[index];
67682 +
67683 + while (match && (match->inode != ino || match->device != dev ||
67684 + !(match->mode & GR_DELETED))) {
67685 + match = match->next;
67686 + }
67687 +
67688 + if (match && (match->mode & GR_DELETED))
67689 + return match;
67690 + else
67691 + return NULL;
67692 +}
67693 +
67694 +static struct acl_object_label *
67695 +lookup_acl_obj_label(const ino_t ino, const dev_t dev,
67696 + const struct acl_subject_label *subj)
67697 +{
67698 + unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
67699 + struct acl_object_label *match;
67700 +
67701 + match = subj->obj_hash[index];
67702 +
67703 + while (match && (match->inode != ino || match->device != dev ||
67704 + (match->mode & GR_DELETED))) {
67705 + match = match->next;
67706 + }
67707 +
67708 + if (match && !(match->mode & GR_DELETED))
67709 + return match;
67710 + else
67711 + return NULL;
67712 +}
67713 +
67714 +static struct acl_object_label *
67715 +lookup_acl_obj_label_create(const ino_t ino, const dev_t dev,
67716 + const struct acl_subject_label *subj)
67717 +{
67718 + unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
67719 + struct acl_object_label *match;
67720 +
67721 + match = subj->obj_hash[index];
67722 +
67723 + while (match && (match->inode != ino || match->device != dev ||
67724 + !(match->mode & GR_DELETED))) {
67725 + match = match->next;
67726 + }
67727 +
67728 + if (match && (match->mode & GR_DELETED))
67729 + return match;
67730 +
67731 + match = subj->obj_hash[index];
67732 +
67733 + while (match && (match->inode != ino || match->device != dev ||
67734 + (match->mode & GR_DELETED))) {
67735 + match = match->next;
67736 + }
67737 +
67738 + if (match && !(match->mode & GR_DELETED))
67739 + return match;
67740 + else
67741 + return NULL;
67742 +}
67743 +
67744 +struct name_entry *
67745 +__lookup_name_entry(const struct gr_policy_state *state, const char *name)
67746 +{
67747 + unsigned int len = strlen(name);
67748 + unsigned int key = full_name_hash(name, len);
67749 + unsigned int index = key % state->name_set.n_size;
67750 + struct name_entry *match;
67751 +
67752 + match = state->name_set.n_hash[index];
67753 +
67754 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
67755 + match = match->next;
67756 +
67757 + return match;
67758 +}
67759 +
67760 +static struct name_entry *
67761 +lookup_name_entry(const char *name)
67762 +{
67763 + return __lookup_name_entry(&running_polstate, name);
67764 +}
67765 +
67766 +static struct name_entry *
67767 +lookup_name_entry_create(const char *name)
67768 +{
67769 + unsigned int len = strlen(name);
67770 + unsigned int key = full_name_hash(name, len);
67771 + unsigned int index = key % running_polstate.name_set.n_size;
67772 + struct name_entry *match;
67773 +
67774 + match = running_polstate.name_set.n_hash[index];
67775 +
67776 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
67777 + !match->deleted))
67778 + match = match->next;
67779 +
67780 + if (match && match->deleted)
67781 + return match;
67782 +
67783 + match = running_polstate.name_set.n_hash[index];
67784 +
67785 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
67786 + match->deleted))
67787 + match = match->next;
67788 +
67789 + if (match && !match->deleted)
67790 + return match;
67791 + else
67792 + return NULL;
67793 +}
67794 +
67795 +static struct inodev_entry *
67796 +lookup_inodev_entry(const ino_t ino, const dev_t dev)
67797 +{
67798 + unsigned int index = gr_fhash(ino, dev, running_polstate.inodev_set.i_size);
67799 + struct inodev_entry *match;
67800 +
67801 + match = running_polstate.inodev_set.i_hash[index];
67802 +
67803 + while (match && (match->nentry->inode != ino || match->nentry->device != dev))
67804 + match = match->next;
67805 +
67806 + return match;
67807 +}
67808 +
67809 +void
67810 +__insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry)
67811 +{
67812 + unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
67813 + state->inodev_set.i_size);
67814 + struct inodev_entry **curr;
67815 +
67816 + entry->prev = NULL;
67817 +
67818 + curr = &state->inodev_set.i_hash[index];
67819 + if (*curr != NULL)
67820 + (*curr)->prev = entry;
67821 +
67822 + entry->next = *curr;
67823 + *curr = entry;
67824 +
67825 + return;
67826 +}
67827 +
67828 +static void
67829 +insert_inodev_entry(struct inodev_entry *entry)
67830 +{
67831 + __insert_inodev_entry(&running_polstate, entry);
67832 +}
67833 +
67834 +void
67835 +insert_acl_obj_label(struct acl_object_label *obj,
67836 + struct acl_subject_label *subj)
67837 +{
67838 + unsigned int index =
67839 + gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
67840 + struct acl_object_label **curr;
67841 +
67842 + obj->prev = NULL;
67843 +
67844 + curr = &subj->obj_hash[index];
67845 + if (*curr != NULL)
67846 + (*curr)->prev = obj;
67847 +
67848 + obj->next = *curr;
67849 + *curr = obj;
67850 +
67851 + return;
67852 +}
67853 +
67854 +void
67855 +insert_acl_subj_label(struct acl_subject_label *obj,
67856 + struct acl_role_label *role)
67857 +{
67858 + unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
67859 + struct acl_subject_label **curr;
67860 +
67861 + obj->prev = NULL;
67862 +
67863 + curr = &role->subj_hash[index];
67864 + if (*curr != NULL)
67865 + (*curr)->prev = obj;
67866 +
67867 + obj->next = *curr;
67868 + *curr = obj;
67869 +
67870 + return;
67871 +}
67872 +
67873 +/* derived from glibc fnmatch() 0: match, 1: no match*/
67874 +
67875 +static int
67876 +glob_match(const char *p, const char *n)
67877 +{
67878 + char c;
67879 +
67880 + while ((c = *p++) != '\0') {
67881 + switch (c) {
67882 + case '?':
67883 + if (*n == '\0')
67884 + return 1;
67885 + else if (*n == '/')
67886 + return 1;
67887 + break;
67888 + case '\\':
67889 + if (*n != c)
67890 + return 1;
67891 + break;
67892 + case '*':
67893 + for (c = *p++; c == '?' || c == '*'; c = *p++) {
67894 + if (*n == '/')
67895 + return 1;
67896 + else if (c == '?') {
67897 + if (*n == '\0')
67898 + return 1;
67899 + else
67900 + ++n;
67901 + }
67902 + }
67903 + if (c == '\0') {
67904 + return 0;
67905 + } else {
67906 + const char *endp;
67907 +
67908 + if ((endp = strchr(n, '/')) == NULL)
67909 + endp = n + strlen(n);
67910 +
67911 + if (c == '[') {
67912 + for (--p; n < endp; ++n)
67913 + if (!glob_match(p, n))
67914 + return 0;
67915 + } else if (c == '/') {
67916 + while (*n != '\0' && *n != '/')
67917 + ++n;
67918 + if (*n == '/' && !glob_match(p, n + 1))
67919 + return 0;
67920 + } else {
67921 + for (--p; n < endp; ++n)
67922 + if (*n == c && !glob_match(p, n))
67923 + return 0;
67924 + }
67925 +
67926 + return 1;
67927 + }
67928 + case '[':
67929 + {
67930 + int not;
67931 + char cold;
67932 +
67933 + if (*n == '\0' || *n == '/')
67934 + return 1;
67935 +
67936 + not = (*p == '!' || *p == '^');
67937 + if (not)
67938 + ++p;
67939 +
67940 + c = *p++;
67941 + for (;;) {
67942 + unsigned char fn = (unsigned char)*n;
67943 +
67944 + if (c == '\0')
67945 + return 1;
67946 + else {
67947 + if (c == fn)
67948 + goto matched;
67949 + cold = c;
67950 + c = *p++;
67951 +
67952 + if (c == '-' && *p != ']') {
67953 + unsigned char cend = *p++;
67954 +
67955 + if (cend == '\0')
67956 + return 1;
67957 +
67958 + if (cold <= fn && fn <= cend)
67959 + goto matched;
67960 +
67961 + c = *p++;
67962 + }
67963 + }
67964 +
67965 + if (c == ']')
67966 + break;
67967 + }
67968 + if (!not)
67969 + return 1;
67970 + break;
67971 + matched:
67972 + while (c != ']') {
67973 + if (c == '\0')
67974 + return 1;
67975 +
67976 + c = *p++;
67977 + }
67978 + if (not)
67979 + return 1;
67980 + }
67981 + break;
67982 + default:
67983 + if (c != *n)
67984 + return 1;
67985 + }
67986 +
67987 + ++n;
67988 + }
67989 +
67990 + if (*n == '\0')
67991 + return 0;
67992 +
67993 + if (*n == '/')
67994 + return 0;
67995 +
67996 + return 1;
67997 +}
67998 +
67999 +static struct acl_object_label *
68000 +chk_glob_label(struct acl_object_label *globbed,
68001 + const struct dentry *dentry, const struct vfsmount *mnt, char **path)
68002 +{
68003 + struct acl_object_label *tmp;
68004 +
68005 + if (*path == NULL)
68006 + *path = gr_to_filename_nolock(dentry, mnt);
68007 +
68008 + tmp = globbed;
68009 +
68010 + while (tmp) {
68011 + if (!glob_match(tmp->filename, *path))
68012 + return tmp;
68013 + tmp = tmp->next;
68014 + }
68015 +
68016 + return NULL;
68017 +}
68018 +
68019 +static struct acl_object_label *
68020 +__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
68021 + const ino_t curr_ino, const dev_t curr_dev,
68022 + const struct acl_subject_label *subj, char **path, const int checkglob)
68023 +{
68024 + struct acl_subject_label *tmpsubj;
68025 + struct acl_object_label *retval;
68026 + struct acl_object_label *retval2;
68027 +
68028 + tmpsubj = (struct acl_subject_label *) subj;
68029 + read_lock(&gr_inode_lock);
68030 + do {
68031 + retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
68032 + if (retval) {
68033 + if (checkglob && retval->globbed) {
68034 + retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
68035 + if (retval2)
68036 + retval = retval2;
68037 + }
68038 + break;
68039 + }
68040 + } while ((tmpsubj = tmpsubj->parent_subject));
68041 + read_unlock(&gr_inode_lock);
68042 +
68043 + return retval;
68044 +}
68045 +
68046 +static __inline__ struct acl_object_label *
68047 +full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
68048 + struct dentry *curr_dentry,
68049 + const struct acl_subject_label *subj, char **path, const int checkglob)
68050 +{
68051 + int newglob = checkglob;
68052 + ino_t inode;
68053 + dev_t device;
68054 +
68055 + /* if we aren't checking a subdirectory of the original path yet, don't do glob checking
68056 + as we don't want a / * rule to match instead of the / object
68057 + don't do this for create lookups that call this function though, since they're looking up
68058 + on the parent and thus need globbing checks on all paths
68059 + */
68060 + if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
68061 + newglob = GR_NO_GLOB;
68062 +
68063 + spin_lock(&curr_dentry->d_lock);
68064 + inode = curr_dentry->d_inode->i_ino;
68065 + device = __get_dev(curr_dentry);
68066 + spin_unlock(&curr_dentry->d_lock);
68067 +
68068 + return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
68069 +}
68070 +
68071 +#ifdef CONFIG_HUGETLBFS
68072 +static inline bool
68073 +is_hugetlbfs_mnt(const struct vfsmount *mnt)
68074 +{
68075 + int i;
68076 + for (i = 0; i < HUGE_MAX_HSTATE; i++) {
68077 + if (unlikely(hugetlbfs_vfsmount[i] == mnt))
68078 + return true;
68079 + }
68080 +
68081 + return false;
68082 +}
68083 +#endif
68084 +
68085 +static struct acl_object_label *
68086 +__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
68087 + const struct acl_subject_label *subj, char *path, const int checkglob)
68088 +{
68089 + struct dentry *dentry = (struct dentry *) l_dentry;
68090 + struct vfsmount *mnt = (struct vfsmount *) l_mnt;
68091 + struct mount *real_mnt = real_mount(mnt);
68092 + struct acl_object_label *retval;
68093 + struct dentry *parent;
68094 +
68095 + read_seqlock_excl(&mount_lock);
68096 + write_seqlock(&rename_lock);
68097 +
68098 + if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
68099 +#ifdef CONFIG_NET
68100 + mnt == sock_mnt ||
68101 +#endif
68102 +#ifdef CONFIG_HUGETLBFS
68103 + (is_hugetlbfs_mnt(mnt) && dentry->d_inode->i_nlink == 0) ||
68104 +#endif
68105 + /* ignore Eric Biederman */
68106 + IS_PRIVATE(l_dentry->d_inode))) {
68107 + retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
68108 + goto out;
68109 + }
68110 +
68111 + for (;;) {
68112 + if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
68113 + break;
68114 +
68115 + if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
68116 + if (!mnt_has_parent(real_mnt))
68117 + break;
68118 +
68119 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
68120 + if (retval != NULL)
68121 + goto out;
68122 +
68123 + dentry = real_mnt->mnt_mountpoint;
68124 + real_mnt = real_mnt->mnt_parent;
68125 + mnt = &real_mnt->mnt;
68126 + continue;
68127 + }
68128 +
68129 + parent = dentry->d_parent;
68130 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
68131 + if (retval != NULL)
68132 + goto out;
68133 +
68134 + dentry = parent;
68135 + }
68136 +
68137 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
68138 +
68139 + /* gr_real_root is pinned so we don't have to hold a reference */
68140 + if (retval == NULL)
68141 + retval = full_lookup(l_dentry, l_mnt, gr_real_root.dentry, subj, &path, checkglob);
68142 +out:
68143 + write_sequnlock(&rename_lock);
68144 + read_sequnlock_excl(&mount_lock);
68145 +
68146 + BUG_ON(retval == NULL);
68147 +
68148 + return retval;
68149 +}
68150 +
68151 +static __inline__ struct acl_object_label *
68152 +chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
68153 + const struct acl_subject_label *subj)
68154 +{
68155 + char *path = NULL;
68156 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
68157 +}
68158 +
68159 +static __inline__ struct acl_object_label *
68160 +chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
68161 + const struct acl_subject_label *subj)
68162 +{
68163 + char *path = NULL;
68164 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
68165 +}
68166 +
68167 +static __inline__ struct acl_object_label *
68168 +chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
68169 + const struct acl_subject_label *subj, char *path)
68170 +{
68171 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
68172 +}
68173 +
68174 +struct acl_subject_label *
68175 +chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
68176 + const struct acl_role_label *role)
68177 +{
68178 + struct dentry *dentry = (struct dentry *) l_dentry;
68179 + struct vfsmount *mnt = (struct vfsmount *) l_mnt;
68180 + struct mount *real_mnt = real_mount(mnt);
68181 + struct acl_subject_label *retval;
68182 + struct dentry *parent;
68183 +
68184 + read_seqlock_excl(&mount_lock);
68185 + write_seqlock(&rename_lock);
68186 +
68187 + for (;;) {
68188 + if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
68189 + break;
68190 + if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
68191 + if (!mnt_has_parent(real_mnt))
68192 + break;
68193 +
68194 + spin_lock(&dentry->d_lock);
68195 + read_lock(&gr_inode_lock);
68196 + retval =
68197 + lookup_acl_subj_label(dentry->d_inode->i_ino,
68198 + __get_dev(dentry), role);
68199 + read_unlock(&gr_inode_lock);
68200 + spin_unlock(&dentry->d_lock);
68201 + if (retval != NULL)
68202 + goto out;
68203 +
68204 + dentry = real_mnt->mnt_mountpoint;
68205 + real_mnt = real_mnt->mnt_parent;
68206 + mnt = &real_mnt->mnt;
68207 + continue;
68208 + }
68209 +
68210 + spin_lock(&dentry->d_lock);
68211 + read_lock(&gr_inode_lock);
68212 + retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
68213 + __get_dev(dentry), role);
68214 + read_unlock(&gr_inode_lock);
68215 + parent = dentry->d_parent;
68216 + spin_unlock(&dentry->d_lock);
68217 +
68218 + if (retval != NULL)
68219 + goto out;
68220 +
68221 + dentry = parent;
68222 + }
68223 +
68224 + spin_lock(&dentry->d_lock);
68225 + read_lock(&gr_inode_lock);
68226 + retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
68227 + __get_dev(dentry), role);
68228 + read_unlock(&gr_inode_lock);
68229 + spin_unlock(&dentry->d_lock);
68230 +
68231 + if (unlikely(retval == NULL)) {
68232 + /* gr_real_root is pinned, we don't need to hold a reference */
68233 + read_lock(&gr_inode_lock);
68234 + retval = lookup_acl_subj_label(gr_real_root.dentry->d_inode->i_ino,
68235 + __get_dev(gr_real_root.dentry), role);
68236 + read_unlock(&gr_inode_lock);
68237 + }
68238 +out:
68239 + write_sequnlock(&rename_lock);
68240 + read_sequnlock_excl(&mount_lock);
68241 +
68242 + BUG_ON(retval == NULL);
68243 +
68244 + return retval;
68245 +}
68246 +
68247 +void
68248 +assign_special_role(const char *rolename)
68249 +{
68250 + struct acl_object_label *obj;
68251 + struct acl_role_label *r;
68252 + struct acl_role_label *assigned = NULL;
68253 + struct task_struct *tsk;
68254 + struct file *filp;
68255 +
68256 + FOR_EACH_ROLE_START(r)
68257 + if (!strcmp(rolename, r->rolename) &&
68258 + (r->roletype & GR_ROLE_SPECIAL)) {
68259 + assigned = r;
68260 + break;
68261 + }
68262 + FOR_EACH_ROLE_END(r)
68263 +
68264 + if (!assigned)
68265 + return;
68266 +
68267 + read_lock(&tasklist_lock);
68268 + read_lock(&grsec_exec_file_lock);
68269 +
68270 + tsk = current->real_parent;
68271 + if (tsk == NULL)
68272 + goto out_unlock;
68273 +
68274 + filp = tsk->exec_file;
68275 + if (filp == NULL)
68276 + goto out_unlock;
68277 +
68278 + tsk->is_writable = 0;
68279 + tsk->inherited = 0;
68280 +
68281 + tsk->acl_sp_role = 1;
68282 + tsk->acl_role_id = ++acl_sp_role_value;
68283 + tsk->role = assigned;
68284 + tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
68285 +
68286 + /* ignore additional mmap checks for processes that are writable
68287 + by the default ACL */
68288 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
68289 + if (unlikely(obj->mode & GR_WRITE))
68290 + tsk->is_writable = 1;
68291 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
68292 + if (unlikely(obj->mode & GR_WRITE))
68293 + tsk->is_writable = 1;
68294 +
68295 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
68296 + printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename,
68297 + tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
68298 +#endif
68299 +
68300 +out_unlock:
68301 + read_unlock(&grsec_exec_file_lock);
68302 + read_unlock(&tasklist_lock);
68303 + return;
68304 +}
68305 +
68306 +
68307 +static void
68308 +gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
68309 +{
68310 + struct task_struct *task = current;
68311 + const struct cred *cred = current_cred();
68312 +
68313 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
68314 + GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
68315 + task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
68316 + 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
68317 +
68318 + return;
68319 +}
68320 +
68321 +static void
68322 +gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
68323 +{
68324 + struct task_struct *task = current;
68325 + const struct cred *cred = current_cred();
68326 +
68327 + security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
68328 + GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
68329 + task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
68330 + 'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
68331 +
68332 + return;
68333 +}
68334 +
68335 +static void
68336 +gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
68337 +{
68338 + struct task_struct *task = current;
68339 + const struct cred *cred = current_cred();
68340 +
68341 + security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
68342 + GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
68343 + task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
68344 + 'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
68345 +
68346 + return;
68347 +}
68348 +
68349 +static void
68350 +gr_set_proc_res(struct task_struct *task)
68351 +{
68352 + struct acl_subject_label *proc;
68353 + unsigned short i;
68354 +
68355 + proc = task->acl;
68356 +
68357 + if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
68358 + return;
68359 +
68360 + for (i = 0; i < RLIM_NLIMITS; i++) {
68361 + if (!(proc->resmask & (1U << i)))
68362 + continue;
68363 +
68364 + task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur;
68365 + task->signal->rlim[i].rlim_max = proc->res[i].rlim_max;
68366 +
68367 + if (i == RLIMIT_CPU)
68368 + update_rlimit_cpu(task, proc->res[i].rlim_cur);
68369 + }
68370 +
68371 + return;
68372 +}
68373 +
68374 +/* both of the below must be called with
68375 + rcu_read_lock();
68376 + read_lock(&tasklist_lock);
68377 + read_lock(&grsec_exec_file_lock);
68378 +*/
68379 +
68380 +struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename)
68381 +{
68382 + char *tmpname;
68383 + struct acl_subject_label *tmpsubj;
68384 + struct file *filp;
68385 + struct name_entry *nmatch;
68386 +
68387 + filp = task->exec_file;
68388 + if (filp == NULL)
68389 + return NULL;
68390 +
68391 + /* the following is to apply the correct subject
68392 + on binaries running when the RBAC system
68393 + is enabled, when the binaries have been
68394 + replaced or deleted since their execution
68395 + -----
68396 + when the RBAC system starts, the inode/dev
68397 + from exec_file will be one the RBAC system
68398 + is unaware of. It only knows the inode/dev
68399 + of the present file on disk, or the absence
68400 + of it.
68401 + */
68402 +
68403 + if (filename)
68404 + nmatch = __lookup_name_entry(state, filename);
68405 + else {
68406 + preempt_disable();
68407 + tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
68408 +
68409 + nmatch = __lookup_name_entry(state, tmpname);
68410 + preempt_enable();
68411 + }
68412 + tmpsubj = NULL;
68413 + if (nmatch) {
68414 + if (nmatch->deleted)
68415 + tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
68416 + else
68417 + tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
68418 + }
68419 + /* this also works for the reload case -- if we don't match a potentially inherited subject
68420 + then we fall back to a normal lookup based on the binary's ino/dev
68421 + */
68422 + if (tmpsubj == NULL)
68423 + tmpsubj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, task->role);
68424 +
68425 + return tmpsubj;
68426 +}
68427 +
68428 +static struct acl_subject_label *gr_get_subject_for_task(struct task_struct *task, const char *filename)
68429 +{
68430 + return __gr_get_subject_for_task(&running_polstate, task, filename);
68431 +}
68432 +
68433 +void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj)
68434 +{
68435 + struct acl_object_label *obj;
68436 + struct file *filp;
68437 +
68438 + filp = task->exec_file;
68439 +
68440 + task->acl = subj;
68441 + task->is_writable = 0;
68442 + /* ignore additional mmap checks for processes that are writable
68443 + by the default ACL */
68444 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, state->default_role->root_label);
68445 + if (unlikely(obj->mode & GR_WRITE))
68446 + task->is_writable = 1;
68447 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
68448 + if (unlikely(obj->mode & GR_WRITE))
68449 + task->is_writable = 1;
68450 +
68451 + gr_set_proc_res(task);
68452 +
68453 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
68454 + printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
68455 +#endif
68456 +}
68457 +
68458 +static void gr_apply_subject_to_task(struct task_struct *task, struct acl_subject_label *subj)
68459 +{
68460 + __gr_apply_subject_to_task(&running_polstate, task, subj);
68461 +}
68462 +
68463 +__u32
68464 +gr_search_file(const struct dentry * dentry, const __u32 mode,
68465 + const struct vfsmount * mnt)
68466 +{
68467 + __u32 retval = mode;
68468 + struct acl_subject_label *curracl;
68469 + struct acl_object_label *currobj;
68470 +
68471 + if (unlikely(!(gr_status & GR_READY)))
68472 + return (mode & ~GR_AUDITS);
68473 +
68474 + curracl = current->acl;
68475 +
68476 + currobj = chk_obj_label(dentry, mnt, curracl);
68477 + retval = currobj->mode & mode;
68478 +
68479 + /* if we're opening a specified transfer file for writing
68480 + (e.g. /dev/initctl), then transfer our role to init
68481 + */
68482 + if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
68483 + current->role->roletype & GR_ROLE_PERSIST)) {
68484 + struct task_struct *task = init_pid_ns.child_reaper;
68485 +
68486 + if (task->role != current->role) {
68487 + struct acl_subject_label *subj;
68488 +
68489 + task->acl_sp_role = 0;
68490 + task->acl_role_id = current->acl_role_id;
68491 + task->role = current->role;
68492 + rcu_read_lock();
68493 + read_lock(&grsec_exec_file_lock);
68494 + subj = gr_get_subject_for_task(task, NULL);
68495 + gr_apply_subject_to_task(task, subj);
68496 + read_unlock(&grsec_exec_file_lock);
68497 + rcu_read_unlock();
68498 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
68499 + }
68500 + }
68501 +
68502 + if (unlikely
68503 + ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
68504 + && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
68505 + __u32 new_mode = mode;
68506 +
68507 + new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
68508 +
68509 + retval = new_mode;
68510 +
68511 + if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
68512 + new_mode |= GR_INHERIT;
68513 +
68514 + if (!(mode & GR_NOLEARN))
68515 + gr_log_learn(dentry, mnt, new_mode);
68516 + }
68517 +
68518 + return retval;
68519 +}
68520 +
68521 +struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
68522 + const struct dentry *parent,
68523 + const struct vfsmount *mnt)
68524 +{
68525 + struct name_entry *match;
68526 + struct acl_object_label *matchpo;
68527 + struct acl_subject_label *curracl;
68528 + char *path;
68529 +
68530 + if (unlikely(!(gr_status & GR_READY)))
68531 + return NULL;
68532 +
68533 + preempt_disable();
68534 + path = gr_to_filename_rbac(new_dentry, mnt);
68535 + match = lookup_name_entry_create(path);
68536 +
68537 + curracl = current->acl;
68538 +
68539 + if (match) {
68540 + read_lock(&gr_inode_lock);
68541 + matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
68542 + read_unlock(&gr_inode_lock);
68543 +
68544 + if (matchpo) {
68545 + preempt_enable();
68546 + return matchpo;
68547 + }
68548 + }
68549 +
68550 + // lookup parent
68551 +
68552 + matchpo = chk_obj_create_label(parent, mnt, curracl, path);
68553 +
68554 + preempt_enable();
68555 + return matchpo;
68556 +}
68557 +
68558 +__u32
68559 +gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
68560 + const struct vfsmount * mnt, const __u32 mode)
68561 +{
68562 + struct acl_object_label *matchpo;
68563 + __u32 retval;
68564 +
68565 + if (unlikely(!(gr_status & GR_READY)))
68566 + return (mode & ~GR_AUDITS);
68567 +
68568 + matchpo = gr_get_create_object(new_dentry, parent, mnt);
68569 +
68570 + retval = matchpo->mode & mode;
68571 +
68572 + if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
68573 + && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
68574 + __u32 new_mode = mode;
68575 +
68576 + new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
68577 +
68578 + gr_log_learn(new_dentry, mnt, new_mode);
68579 + return new_mode;
68580 + }
68581 +
68582 + return retval;
68583 +}
68584 +
68585 +__u32
68586 +gr_check_link(const struct dentry * new_dentry,
68587 + const struct dentry * parent_dentry,
68588 + const struct vfsmount * parent_mnt,
68589 + const struct dentry * old_dentry, const struct vfsmount * old_mnt)
68590 +{
68591 + struct acl_object_label *obj;
68592 + __u32 oldmode, newmode;
68593 + __u32 needmode;
68594 + __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
68595 + GR_DELETE | GR_INHERIT;
68596 +
68597 + if (unlikely(!(gr_status & GR_READY)))
68598 + return (GR_CREATE | GR_LINK);
68599 +
68600 + obj = chk_obj_label(old_dentry, old_mnt, current->acl);
68601 + oldmode = obj->mode;
68602 +
68603 + obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
68604 + newmode = obj->mode;
68605 +
68606 + needmode = newmode & checkmodes;
68607 +
68608 + // old name for hardlink must have at least the permissions of the new name
68609 + if ((oldmode & needmode) != needmode)
68610 + goto bad;
68611 +
68612 + // if old name had restrictions/auditing, make sure the new name does as well
68613 + needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
68614 +
68615 + // don't allow hardlinking of suid/sgid/fcapped files without permission
68616 + if (is_privileged_binary(old_dentry))
68617 + needmode |= GR_SETID;
68618 +
68619 + if ((newmode & needmode) != needmode)
68620 + goto bad;
68621 +
68622 + // enforce minimum permissions
68623 + if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
68624 + return newmode;
68625 +bad:
68626 + needmode = oldmode;
68627 + if (is_privileged_binary(old_dentry))
68628 + needmode |= GR_SETID;
68629 +
68630 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
68631 + gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
68632 + return (GR_CREATE | GR_LINK);
68633 + } else if (newmode & GR_SUPPRESS)
68634 + return GR_SUPPRESS;
68635 + else
68636 + return 0;
68637 +}
68638 +
68639 +int
68640 +gr_check_hidden_task(const struct task_struct *task)
68641 +{
68642 + if (unlikely(!(gr_status & GR_READY)))
68643 + return 0;
68644 +
68645 + if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
68646 + return 1;
68647 +
68648 + return 0;
68649 +}
68650 +
68651 +int
68652 +gr_check_protected_task(const struct task_struct *task)
68653 +{
68654 + if (unlikely(!(gr_status & GR_READY) || !task))
68655 + return 0;
68656 +
68657 + if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
68658 + task->acl != current->acl)
68659 + return 1;
68660 +
68661 + return 0;
68662 +}
68663 +
68664 +int
68665 +gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
68666 +{
68667 + struct task_struct *p;
68668 + int ret = 0;
68669 +
68670 + if (unlikely(!(gr_status & GR_READY) || !pid))
68671 + return ret;
68672 +
68673 + read_lock(&tasklist_lock);
68674 + do_each_pid_task(pid, type, p) {
68675 + if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
68676 + p->acl != current->acl) {
68677 + ret = 1;
68678 + goto out;
68679 + }
68680 + } while_each_pid_task(pid, type, p);
68681 +out:
68682 + read_unlock(&tasklist_lock);
68683 +
68684 + return ret;
68685 +}
68686 +
68687 +void
68688 +gr_copy_label(struct task_struct *tsk)
68689 +{
68690 + struct task_struct *p = current;
68691 +
68692 + tsk->inherited = p->inherited;
68693 + tsk->acl_sp_role = 0;
68694 + tsk->acl_role_id = p->acl_role_id;
68695 + tsk->acl = p->acl;
68696 + tsk->role = p->role;
68697 + tsk->signal->used_accept = 0;
68698 + tsk->signal->curr_ip = p->signal->curr_ip;
68699 + tsk->signal->saved_ip = p->signal->saved_ip;
68700 + if (p->exec_file)
68701 + get_file(p->exec_file);
68702 + tsk->exec_file = p->exec_file;
68703 + tsk->is_writable = p->is_writable;
68704 + if (unlikely(p->signal->used_accept)) {
68705 + p->signal->curr_ip = 0;
68706 + p->signal->saved_ip = 0;
68707 + }
68708 +
68709 + return;
68710 +}
68711 +
68712 +extern int gr_process_kernel_setuid_ban(struct user_struct *user);
68713 +
68714 +int
68715 +gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
68716 +{
68717 + unsigned int i;
68718 + __u16 num;
68719 + uid_t *uidlist;
68720 + uid_t curuid;
68721 + int realok = 0;
68722 + int effectiveok = 0;
68723 + int fsok = 0;
68724 + uid_t globalreal, globaleffective, globalfs;
68725 +
68726 +#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT)
68727 + struct user_struct *user;
68728 +
68729 + if (!uid_valid(real))
68730 + goto skipit;
68731 +
68732 + /* find user based on global namespace */
68733 +
68734 + globalreal = GR_GLOBAL_UID(real);
68735 +
68736 + user = find_user(make_kuid(&init_user_ns, globalreal));
68737 + if (user == NULL)
68738 + goto skipit;
68739 +
68740 + if (gr_process_kernel_setuid_ban(user)) {
68741 + /* for find_user */
68742 + free_uid(user);
68743 + return 1;
68744 + }
68745 +
68746 + /* for find_user */
68747 + free_uid(user);
68748 +
68749 +skipit:
68750 +#endif
68751 +
68752 + if (unlikely(!(gr_status & GR_READY)))
68753 + return 0;
68754 +
68755 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
68756 + gr_log_learn_uid_change(real, effective, fs);
68757 +
68758 + num = current->acl->user_trans_num;
68759 + uidlist = current->acl->user_transitions;
68760 +
68761 + if (uidlist == NULL)
68762 + return 0;
68763 +
68764 + if (!uid_valid(real)) {
68765 + realok = 1;
68766 + globalreal = (uid_t)-1;
68767 + } else {
68768 + globalreal = GR_GLOBAL_UID(real);
68769 + }
68770 + if (!uid_valid(effective)) {
68771 + effectiveok = 1;
68772 + globaleffective = (uid_t)-1;
68773 + } else {
68774 + globaleffective = GR_GLOBAL_UID(effective);
68775 + }
68776 + if (!uid_valid(fs)) {
68777 + fsok = 1;
68778 + globalfs = (uid_t)-1;
68779 + } else {
68780 + globalfs = GR_GLOBAL_UID(fs);
68781 + }
68782 +
68783 + if (current->acl->user_trans_type & GR_ID_ALLOW) {
68784 + for (i = 0; i < num; i++) {
68785 + curuid = uidlist[i];
68786 + if (globalreal == curuid)
68787 + realok = 1;
68788 + if (globaleffective == curuid)
68789 + effectiveok = 1;
68790 + if (globalfs == curuid)
68791 + fsok = 1;
68792 + }
68793 + } else if (current->acl->user_trans_type & GR_ID_DENY) {
68794 + for (i = 0; i < num; i++) {
68795 + curuid = uidlist[i];
68796 + if (globalreal == curuid)
68797 + break;
68798 + if (globaleffective == curuid)
68799 + break;
68800 + if (globalfs == curuid)
68801 + break;
68802 + }
68803 + /* not in deny list */
68804 + if (i == num) {
68805 + realok = 1;
68806 + effectiveok = 1;
68807 + fsok = 1;
68808 + }
68809 + }
68810 +
68811 + if (realok && effectiveok && fsok)
68812 + return 0;
68813 + else {
68814 + gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
68815 + return 1;
68816 + }
68817 +}
68818 +
68819 +int
68820 +gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
68821 +{
68822 + unsigned int i;
68823 + __u16 num;
68824 + gid_t *gidlist;
68825 + gid_t curgid;
68826 + int realok = 0;
68827 + int effectiveok = 0;
68828 + int fsok = 0;
68829 + gid_t globalreal, globaleffective, globalfs;
68830 +
68831 + if (unlikely(!(gr_status & GR_READY)))
68832 + return 0;
68833 +
68834 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
68835 + gr_log_learn_gid_change(real, effective, fs);
68836 +
68837 + num = current->acl->group_trans_num;
68838 + gidlist = current->acl->group_transitions;
68839 +
68840 + if (gidlist == NULL)
68841 + return 0;
68842 +
68843 + if (!gid_valid(real)) {
68844 + realok = 1;
68845 + globalreal = (gid_t)-1;
68846 + } else {
68847 + globalreal = GR_GLOBAL_GID(real);
68848 + }
68849 + if (!gid_valid(effective)) {
68850 + effectiveok = 1;
68851 + globaleffective = (gid_t)-1;
68852 + } else {
68853 + globaleffective = GR_GLOBAL_GID(effective);
68854 + }
68855 + if (!gid_valid(fs)) {
68856 + fsok = 1;
68857 + globalfs = (gid_t)-1;
68858 + } else {
68859 + globalfs = GR_GLOBAL_GID(fs);
68860 + }
68861 +
68862 + if (current->acl->group_trans_type & GR_ID_ALLOW) {
68863 + for (i = 0; i < num; i++) {
68864 + curgid = gidlist[i];
68865 + if (globalreal == curgid)
68866 + realok = 1;
68867 + if (globaleffective == curgid)
68868 + effectiveok = 1;
68869 + if (globalfs == curgid)
68870 + fsok = 1;
68871 + }
68872 + } else if (current->acl->group_trans_type & GR_ID_DENY) {
68873 + for (i = 0; i < num; i++) {
68874 + curgid = gidlist[i];
68875 + if (globalreal == curgid)
68876 + break;
68877 + if (globaleffective == curgid)
68878 + break;
68879 + if (globalfs == curgid)
68880 + break;
68881 + }
68882 + /* not in deny list */
68883 + if (i == num) {
68884 + realok = 1;
68885 + effectiveok = 1;
68886 + fsok = 1;
68887 + }
68888 + }
68889 +
68890 + if (realok && effectiveok && fsok)
68891 + return 0;
68892 + else {
68893 + gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
68894 + return 1;
68895 + }
68896 +}
68897 +
68898 +extern int gr_acl_is_capable(const int cap);
68899 +
68900 +void
68901 +gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
68902 +{
68903 + struct acl_role_label *role = task->role;
68904 + struct acl_subject_label *subj = NULL;
68905 + struct acl_object_label *obj;
68906 + struct file *filp;
68907 + uid_t uid;
68908 + gid_t gid;
68909 +
68910 + if (unlikely(!(gr_status & GR_READY)))
68911 + return;
68912 +
68913 + uid = GR_GLOBAL_UID(kuid);
68914 + gid = GR_GLOBAL_GID(kgid);
68915 +
68916 + filp = task->exec_file;
68917 +
68918 + /* kernel process, we'll give them the kernel role */
68919 + if (unlikely(!filp)) {
68920 + task->role = running_polstate.kernel_role;
68921 + task->acl = running_polstate.kernel_role->root_label;
68922 + return;
68923 + } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) {
68924 + /* save the current ip at time of role lookup so that the proper
68925 + IP will be learned for role_allowed_ip */
68926 + task->signal->saved_ip = task->signal->curr_ip;
68927 + role = lookup_acl_role_label(task, uid, gid);
68928 + }
68929 +
68930 + /* don't change the role if we're not a privileged process */
68931 + if (role && task->role != role &&
68932 + (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
68933 + ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
68934 + return;
68935 +
68936 + /* perform subject lookup in possibly new role
68937 + we can use this result below in the case where role == task->role
68938 + */
68939 + subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
68940 +
68941 + /* if we changed uid/gid, but result in the same role
68942 + and are using inheritance, don't lose the inherited subject
68943 + if current subject is other than what normal lookup
68944 + would result in, we arrived via inheritance, don't
68945 + lose subject
68946 + */
68947 + if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) &&
68948 + (subj == task->acl)))
68949 + task->acl = subj;
68950 +
68951 + /* leave task->inherited unaffected */
68952 +
68953 + task->role = role;
68954 +
68955 + task->is_writable = 0;
68956 +
68957 + /* ignore additional mmap checks for processes that are writable
68958 + by the default ACL */
68959 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
68960 + if (unlikely(obj->mode & GR_WRITE))
68961 + task->is_writable = 1;
68962 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
68963 + if (unlikely(obj->mode & GR_WRITE))
68964 + task->is_writable = 1;
68965 +
68966 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
68967 + printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
68968 +#endif
68969 +
68970 + gr_set_proc_res(task);
68971 +
68972 + return;
68973 +}
68974 +
68975 +int
68976 +gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
68977 + const int unsafe_flags)
68978 +{
68979 + struct task_struct *task = current;
68980 + struct acl_subject_label *newacl;
68981 + struct acl_object_label *obj;
68982 + __u32 retmode;
68983 +
68984 + if (unlikely(!(gr_status & GR_READY)))
68985 + return 0;
68986 +
68987 + newacl = chk_subj_label(dentry, mnt, task->role);
68988 +
68989 + /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
68990 + did an exec
68991 + */
68992 + rcu_read_lock();
68993 + read_lock(&tasklist_lock);
68994 + if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
68995 + (task->parent->acl->mode & GR_POVERRIDE))) {
68996 + read_unlock(&tasklist_lock);
68997 + rcu_read_unlock();
68998 + goto skip_check;
68999 + }
69000 + read_unlock(&tasklist_lock);
69001 + rcu_read_unlock();
69002 +
69003 + if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
69004 + !(task->role->roletype & GR_ROLE_GOD) &&
69005 + !gr_search_file(dentry, GR_PTRACERD, mnt) &&
69006 + !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
69007 + if (unsafe_flags & LSM_UNSAFE_SHARE)
69008 + gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
69009 + else
69010 + gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
69011 + return -EACCES;
69012 + }
69013 +
69014 +skip_check:
69015 +
69016 + obj = chk_obj_label(dentry, mnt, task->acl);
69017 + retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
69018 +
69019 + if (!(task->acl->mode & GR_INHERITLEARN) &&
69020 + ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
69021 + if (obj->nested)
69022 + task->acl = obj->nested;
69023 + else
69024 + task->acl = newacl;
69025 + task->inherited = 0;
69026 + } else {
69027 + task->inherited = 1;
69028 + if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
69029 + gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
69030 + }
69031 +
69032 + task->is_writable = 0;
69033 +
69034 + /* ignore additional mmap checks for processes that are writable
69035 + by the default ACL */
69036 + obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
69037 + if (unlikely(obj->mode & GR_WRITE))
69038 + task->is_writable = 1;
69039 + obj = chk_obj_label(dentry, mnt, task->role->root_label);
69040 + if (unlikely(obj->mode & GR_WRITE))
69041 + task->is_writable = 1;
69042 +
69043 + gr_set_proc_res(task);
69044 +
69045 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
69046 + printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
69047 +#endif
69048 + return 0;
69049 +}
69050 +
69051 +/* always called with valid inodev ptr */
69052 +static void
69053 +do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev)
69054 +{
69055 + struct acl_object_label *matchpo;
69056 + struct acl_subject_label *matchps;
69057 + struct acl_subject_label *subj;
69058 + struct acl_role_label *role;
69059 + unsigned int x;
69060 +
69061 + FOR_EACH_ROLE_START(role)
69062 + FOR_EACH_SUBJECT_START(role, subj, x)
69063 + if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
69064 + matchpo->mode |= GR_DELETED;
69065 + FOR_EACH_SUBJECT_END(subj,x)
69066 + FOR_EACH_NESTED_SUBJECT_START(role, subj)
69067 + /* nested subjects aren't in the role's subj_hash table */
69068 + if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
69069 + matchpo->mode |= GR_DELETED;
69070 + FOR_EACH_NESTED_SUBJECT_END(subj)
69071 + if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
69072 + matchps->mode |= GR_DELETED;
69073 + FOR_EACH_ROLE_END(role)
69074 +
69075 + inodev->nentry->deleted = 1;
69076 +
69077 + return;
69078 +}
69079 +
69080 +void
69081 +gr_handle_delete(const ino_t ino, const dev_t dev)
69082 +{
69083 + struct inodev_entry *inodev;
69084 +
69085 + if (unlikely(!(gr_status & GR_READY)))
69086 + return;
69087 +
69088 + write_lock(&gr_inode_lock);
69089 + inodev = lookup_inodev_entry(ino, dev);
69090 + if (inodev != NULL)
69091 + do_handle_delete(inodev, ino, dev);
69092 + write_unlock(&gr_inode_lock);
69093 +
69094 + return;
69095 +}
69096 +
69097 +static void
69098 +update_acl_obj_label(const ino_t oldinode, const dev_t olddevice,
69099 + const ino_t newinode, const dev_t newdevice,
69100 + struct acl_subject_label *subj)
69101 +{
69102 + unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
69103 + struct acl_object_label *match;
69104 +
69105 + match = subj->obj_hash[index];
69106 +
69107 + while (match && (match->inode != oldinode ||
69108 + match->device != olddevice ||
69109 + !(match->mode & GR_DELETED)))
69110 + match = match->next;
69111 +
69112 + if (match && (match->inode == oldinode)
69113 + && (match->device == olddevice)
69114 + && (match->mode & GR_DELETED)) {
69115 + if (match->prev == NULL) {
69116 + subj->obj_hash[index] = match->next;
69117 + if (match->next != NULL)
69118 + match->next->prev = NULL;
69119 + } else {
69120 + match->prev->next = match->next;
69121 + if (match->next != NULL)
69122 + match->next->prev = match->prev;
69123 + }
69124 + match->prev = NULL;
69125 + match->next = NULL;
69126 + match->inode = newinode;
69127 + match->device = newdevice;
69128 + match->mode &= ~GR_DELETED;
69129 +
69130 + insert_acl_obj_label(match, subj);
69131 + }
69132 +
69133 + return;
69134 +}
69135 +
69136 +static void
69137 +update_acl_subj_label(const ino_t oldinode, const dev_t olddevice,
69138 + const ino_t newinode, const dev_t newdevice,
69139 + struct acl_role_label *role)
69140 +{
69141 + unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
69142 + struct acl_subject_label *match;
69143 +
69144 + match = role->subj_hash[index];
69145 +
69146 + while (match && (match->inode != oldinode ||
69147 + match->device != olddevice ||
69148 + !(match->mode & GR_DELETED)))
69149 + match = match->next;
69150 +
69151 + if (match && (match->inode == oldinode)
69152 + && (match->device == olddevice)
69153 + && (match->mode & GR_DELETED)) {
69154 + if (match->prev == NULL) {
69155 + role->subj_hash[index] = match->next;
69156 + if (match->next != NULL)
69157 + match->next->prev = NULL;
69158 + } else {
69159 + match->prev->next = match->next;
69160 + if (match->next != NULL)
69161 + match->next->prev = match->prev;
69162 + }
69163 + match->prev = NULL;
69164 + match->next = NULL;
69165 + match->inode = newinode;
69166 + match->device = newdevice;
69167 + match->mode &= ~GR_DELETED;
69168 +
69169 + insert_acl_subj_label(match, role);
69170 + }
69171 +
69172 + return;
69173 +}
69174 +
69175 +static void
69176 +update_inodev_entry(const ino_t oldinode, const dev_t olddevice,
69177 + const ino_t newinode, const dev_t newdevice)
69178 +{
69179 + unsigned int index = gr_fhash(oldinode, olddevice, running_polstate.inodev_set.i_size);
69180 + struct inodev_entry *match;
69181 +
69182 + match = running_polstate.inodev_set.i_hash[index];
69183 +
69184 + while (match && (match->nentry->inode != oldinode ||
69185 + match->nentry->device != olddevice || !match->nentry->deleted))
69186 + match = match->next;
69187 +
69188 + if (match && (match->nentry->inode == oldinode)
69189 + && (match->nentry->device == olddevice) &&
69190 + match->nentry->deleted) {
69191 + if (match->prev == NULL) {
69192 + running_polstate.inodev_set.i_hash[index] = match->next;
69193 + if (match->next != NULL)
69194 + match->next->prev = NULL;
69195 + } else {
69196 + match->prev->next = match->next;
69197 + if (match->next != NULL)
69198 + match->next->prev = match->prev;
69199 + }
69200 + match->prev = NULL;
69201 + match->next = NULL;
69202 + match->nentry->inode = newinode;
69203 + match->nentry->device = newdevice;
69204 + match->nentry->deleted = 0;
69205 +
69206 + insert_inodev_entry(match);
69207 + }
69208 +
69209 + return;
69210 +}
69211 +
69212 +static void
69213 +__do_handle_create(const struct name_entry *matchn, ino_t ino, dev_t dev)
69214 +{
69215 + struct acl_subject_label *subj;
69216 + struct acl_role_label *role;
69217 + unsigned int x;
69218 +
69219 + FOR_EACH_ROLE_START(role)
69220 + update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
69221 +
69222 + FOR_EACH_NESTED_SUBJECT_START(role, subj)
69223 + if ((subj->inode == ino) && (subj->device == dev)) {
69224 + subj->inode = ino;
69225 + subj->device = dev;
69226 + }
69227 + /* nested subjects aren't in the role's subj_hash table */
69228 + update_acl_obj_label(matchn->inode, matchn->device,
69229 + ino, dev, subj);
69230 + FOR_EACH_NESTED_SUBJECT_END(subj)
69231 + FOR_EACH_SUBJECT_START(role, subj, x)
69232 + update_acl_obj_label(matchn->inode, matchn->device,
69233 + ino, dev, subj);
69234 + FOR_EACH_SUBJECT_END(subj,x)
69235 + FOR_EACH_ROLE_END(role)
69236 +
69237 + update_inodev_entry(matchn->inode, matchn->device, ino, dev);
69238 +
69239 + return;
69240 +}
69241 +
69242 +static void
69243 +do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
69244 + const struct vfsmount *mnt)
69245 +{
69246 + ino_t ino = dentry->d_inode->i_ino;
69247 + dev_t dev = __get_dev(dentry);
69248 +
69249 + __do_handle_create(matchn, ino, dev);
69250 +
69251 + return;
69252 +}
69253 +
69254 +void
69255 +gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
69256 +{
69257 + struct name_entry *matchn;
69258 +
69259 + if (unlikely(!(gr_status & GR_READY)))
69260 + return;
69261 +
69262 + preempt_disable();
69263 + matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
69264 +
69265 + if (unlikely((unsigned long)matchn)) {
69266 + write_lock(&gr_inode_lock);
69267 + do_handle_create(matchn, dentry, mnt);
69268 + write_unlock(&gr_inode_lock);
69269 + }
69270 + preempt_enable();
69271 +
69272 + return;
69273 +}
69274 +
69275 +void
69276 +gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
69277 +{
69278 + struct name_entry *matchn;
69279 +
69280 + if (unlikely(!(gr_status & GR_READY)))
69281 + return;
69282 +
69283 + preempt_disable();
69284 + matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
69285 +
69286 + if (unlikely((unsigned long)matchn)) {
69287 + write_lock(&gr_inode_lock);
69288 + __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
69289 + write_unlock(&gr_inode_lock);
69290 + }
69291 + preempt_enable();
69292 +
69293 + return;
69294 +}
69295 +
69296 +void
69297 +gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
69298 + struct dentry *old_dentry,
69299 + struct dentry *new_dentry,
69300 + struct vfsmount *mnt, const __u8 replace, unsigned int flags)
69301 +{
69302 + struct name_entry *matchn;
69303 + struct name_entry *matchn2 = NULL;
69304 + struct inodev_entry *inodev;
69305 + struct inode *inode = new_dentry->d_inode;
69306 + ino_t old_ino = old_dentry->d_inode->i_ino;
69307 + dev_t old_dev = __get_dev(old_dentry);
69308 + unsigned int exchange = flags & RENAME_EXCHANGE;
69309 +
69310 + /* vfs_rename swaps the name and parent link for old_dentry and
69311 + new_dentry
69312 + at this point, old_dentry has the new name, parent link, and inode
69313 + for the renamed file
69314 + if a file is being replaced by a rename, new_dentry has the inode
69315 + and name for the replaced file
69316 + */
69317 +
69318 + if (unlikely(!(gr_status & GR_READY)))
69319 + return;
69320 +
69321 + preempt_disable();
69322 + matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
69323 +
69324 + /* exchange cases:
69325 + a filename exists for the source, but not dest
69326 + do a recreate on source
69327 + a filename exists for the dest, but not source
69328 + do a recreate on dest
69329 + a filename exists for both source and dest
69330 + delete source and dest, then create source and dest
69331 + a filename exists for neither source nor dest
69332 + no updates needed
69333 +
69334 + the name entry lookups get us the old inode/dev associated with
69335 + each name, so do the deletes first (if possible) so that when
69336 + we do the create, we pick up on the right entries
69337 + */
69338 +
69339 + if (exchange)
69340 + matchn2 = lookup_name_entry(gr_to_filename_rbac(new_dentry, mnt));
69341 +
69342 + /* we wouldn't have to check d_inode if it weren't for
69343 + NFS silly-renaming
69344 + */
69345 +
69346 + write_lock(&gr_inode_lock);
69347 + if (unlikely((replace || exchange) && inode)) {
69348 + ino_t new_ino = inode->i_ino;
69349 + dev_t new_dev = __get_dev(new_dentry);
69350 +
69351 + inodev = lookup_inodev_entry(new_ino, new_dev);
69352 + if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
69353 + do_handle_delete(inodev, new_ino, new_dev);
69354 + }
69355 +
69356 + inodev = lookup_inodev_entry(old_ino, old_dev);
69357 + if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
69358 + do_handle_delete(inodev, old_ino, old_dev);
69359 +
69360 + if (unlikely(matchn != NULL))
69361 + do_handle_create(matchn, old_dentry, mnt);
69362 +
69363 + if (unlikely(matchn2 != NULL))
69364 + do_handle_create(matchn2, new_dentry, mnt);
69365 +
69366 + write_unlock(&gr_inode_lock);
69367 + preempt_enable();
69368 +
69369 + return;
69370 +}
69371 +
69372 +#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
69373 +static const unsigned long res_learn_bumps[GR_NLIMITS] = {
69374 + [RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
69375 + [RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
69376 + [RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
69377 + [RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
69378 + [RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
69379 + [RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
69380 + [RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
69381 + [RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
69382 + [RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
69383 + [RLIMIT_AS] = GR_RLIM_AS_BUMP,
69384 + [RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
69385 + [RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
69386 + [RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
69387 + [RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
69388 + [RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
69389 + [RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
69390 +};
69391 +
69392 +void
69393 +gr_learn_resource(const struct task_struct *task,
69394 + const int res, const unsigned long wanted, const int gt)
69395 +{
69396 + struct acl_subject_label *acl;
69397 + const struct cred *cred;
69398 +
69399 + if (unlikely((gr_status & GR_READY) &&
69400 + task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
69401 + goto skip_reslog;
69402 +
69403 + gr_log_resource(task, res, wanted, gt);
69404 +skip_reslog:
69405 +
69406 + if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
69407 + return;
69408 +
69409 + acl = task->acl;
69410 +
69411 + if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
69412 + !(acl->resmask & (1U << (unsigned short) res))))
69413 + return;
69414 +
69415 + if (wanted >= acl->res[res].rlim_cur) {
69416 + unsigned long res_add;
69417 +
69418 + res_add = wanted + res_learn_bumps[res];
69419 +
69420 + acl->res[res].rlim_cur = res_add;
69421 +
69422 + if (wanted > acl->res[res].rlim_max)
69423 + acl->res[res].rlim_max = res_add;
69424 +
69425 + /* only log the subject filename, since resource logging is supported for
69426 + single-subject learning only */
69427 + rcu_read_lock();
69428 + cred = __task_cred(task);
69429 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
69430 + task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
69431 + acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
69432 + "", (unsigned long) res, &task->signal->saved_ip);
69433 + rcu_read_unlock();
69434 + }
69435 +
69436 + return;
69437 +}
69438 +EXPORT_SYMBOL_GPL(gr_learn_resource);
69439 +#endif
69440 +
69441 +#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
69442 +void
69443 +pax_set_initial_flags(struct linux_binprm *bprm)
69444 +{
69445 + struct task_struct *task = current;
69446 + struct acl_subject_label *proc;
69447 + unsigned long flags;
69448 +
69449 + if (unlikely(!(gr_status & GR_READY)))
69450 + return;
69451 +
69452 + flags = pax_get_flags(task);
69453 +
69454 + proc = task->acl;
69455 +
69456 + if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
69457 + flags &= ~MF_PAX_PAGEEXEC;
69458 + if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
69459 + flags &= ~MF_PAX_SEGMEXEC;
69460 + if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
69461 + flags &= ~MF_PAX_RANDMMAP;
69462 + if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
69463 + flags &= ~MF_PAX_EMUTRAMP;
69464 + if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
69465 + flags &= ~MF_PAX_MPROTECT;
69466 +
69467 + if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
69468 + flags |= MF_PAX_PAGEEXEC;
69469 + if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
69470 + flags |= MF_PAX_SEGMEXEC;
69471 + if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
69472 + flags |= MF_PAX_RANDMMAP;
69473 + if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
69474 + flags |= MF_PAX_EMUTRAMP;
69475 + if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
69476 + flags |= MF_PAX_MPROTECT;
69477 +
69478 + pax_set_flags(task, flags);
69479 +
69480 + return;
69481 +}
69482 +#endif
69483 +
69484 +int
69485 +gr_handle_proc_ptrace(struct task_struct *task)
69486 +{
69487 + struct file *filp;
69488 + struct task_struct *tmp = task;
69489 + struct task_struct *curtemp = current;
69490 + __u32 retmode;
69491 +
69492 +#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
69493 + if (unlikely(!(gr_status & GR_READY)))
69494 + return 0;
69495 +#endif
69496 +
69497 + read_lock(&tasklist_lock);
69498 + read_lock(&grsec_exec_file_lock);
69499 + filp = task->exec_file;
69500 +
69501 + while (task_pid_nr(tmp) > 0) {
69502 + if (tmp == curtemp)
69503 + break;
69504 + tmp = tmp->real_parent;
69505 + }
69506 +
69507 + if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
69508 + ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) {
69509 + read_unlock(&grsec_exec_file_lock);
69510 + read_unlock(&tasklist_lock);
69511 + return 1;
69512 + }
69513 +
69514 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
69515 + if (!(gr_status & GR_READY)) {
69516 + read_unlock(&grsec_exec_file_lock);
69517 + read_unlock(&tasklist_lock);
69518 + return 0;
69519 + }
69520 +#endif
69521 +
69522 + retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
69523 + read_unlock(&grsec_exec_file_lock);
69524 + read_unlock(&tasklist_lock);
69525 +
69526 + if (retmode & GR_NOPTRACE)
69527 + return 1;
69528 +
69529 + if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
69530 + && (current->acl != task->acl || (current->acl != current->role->root_label
69531 + && task_pid_nr(current) != task_pid_nr(task))))
69532 + return 1;
69533 +
69534 + return 0;
69535 +}
69536 +
69537 +void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
69538 +{
69539 + if (unlikely(!(gr_status & GR_READY)))
69540 + return;
69541 +
69542 + if (!(current->role->roletype & GR_ROLE_GOD))
69543 + return;
69544 +
69545 + seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
69546 + p->role->rolename, gr_task_roletype_to_char(p),
69547 + p->acl->filename);
69548 +}
69549 +
69550 +int
69551 +gr_handle_ptrace(struct task_struct *task, const long request)
69552 +{
69553 + struct task_struct *tmp = task;
69554 + struct task_struct *curtemp = current;
69555 + __u32 retmode;
69556 +
69557 +#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
69558 + if (unlikely(!(gr_status & GR_READY)))
69559 + return 0;
69560 +#endif
69561 + if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
69562 + read_lock(&tasklist_lock);
69563 + while (task_pid_nr(tmp) > 0) {
69564 + if (tmp == curtemp)
69565 + break;
69566 + tmp = tmp->real_parent;
69567 + }
69568 +
69569 + if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
69570 + ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) {
69571 + read_unlock(&tasklist_lock);
69572 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
69573 + return 1;
69574 + }
69575 + read_unlock(&tasklist_lock);
69576 + }
69577 +
69578 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
69579 + if (!(gr_status & GR_READY))
69580 + return 0;
69581 +#endif
69582 +
69583 + read_lock(&grsec_exec_file_lock);
69584 + if (unlikely(!task->exec_file)) {
69585 + read_unlock(&grsec_exec_file_lock);
69586 + return 0;
69587 + }
69588 +
69589 + retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
69590 + read_unlock(&grsec_exec_file_lock);
69591 +
69592 + if (retmode & GR_NOPTRACE) {
69593 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
69594 + return 1;
69595 + }
69596 +
69597 + if (retmode & GR_PTRACERD) {
69598 + switch (request) {
69599 + case PTRACE_SEIZE:
69600 + case PTRACE_POKETEXT:
69601 + case PTRACE_POKEDATA:
69602 + case PTRACE_POKEUSR:
69603 +#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
69604 + case PTRACE_SETREGS:
69605 + case PTRACE_SETFPREGS:
69606 +#endif
69607 +#ifdef CONFIG_X86
69608 + case PTRACE_SETFPXREGS:
69609 +#endif
69610 +#ifdef CONFIG_ALTIVEC
69611 + case PTRACE_SETVRREGS:
69612 +#endif
69613 + return 1;
69614 + default:
69615 + return 0;
69616 + }
69617 + } else if (!(current->acl->mode & GR_POVERRIDE) &&
69618 + !(current->role->roletype & GR_ROLE_GOD) &&
69619 + (current->acl != task->acl)) {
69620 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
69621 + return 1;
69622 + }
69623 +
69624 + return 0;
69625 +}
69626 +
69627 +static int is_writable_mmap(const struct file *filp)
69628 +{
69629 + struct task_struct *task = current;
69630 + struct acl_object_label *obj, *obj2;
69631 +
69632 + if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
69633 + !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode) && (filp->f_path.mnt != shm_mnt || (filp->f_path.dentry->d_inode->i_nlink > 0))) {
69634 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
69635 + obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
69636 + task->role->root_label);
69637 + if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
69638 + gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
69639 + return 1;
69640 + }
69641 + }
69642 + return 0;
69643 +}
69644 +
69645 +int
69646 +gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
69647 +{
69648 + __u32 mode;
69649 +
69650 + if (unlikely(!file || !(prot & PROT_EXEC)))
69651 + return 1;
69652 +
69653 + if (is_writable_mmap(file))
69654 + return 0;
69655 +
69656 + mode =
69657 + gr_search_file(file->f_path.dentry,
69658 + GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
69659 + file->f_path.mnt);
69660 +
69661 + if (!gr_tpe_allow(file))
69662 + return 0;
69663 +
69664 + if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
69665 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
69666 + return 0;
69667 + } else if (unlikely(!(mode & GR_EXEC))) {
69668 + return 0;
69669 + } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
69670 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
69671 + return 1;
69672 + }
69673 +
69674 + return 1;
69675 +}
69676 +
69677 +int
69678 +gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
69679 +{
69680 + __u32 mode;
69681 +
69682 + if (unlikely(!file || !(prot & PROT_EXEC)))
69683 + return 1;
69684 +
69685 + if (is_writable_mmap(file))
69686 + return 0;
69687 +
69688 + mode =
69689 + gr_search_file(file->f_path.dentry,
69690 + GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
69691 + file->f_path.mnt);
69692 +
69693 + if (!gr_tpe_allow(file))
69694 + return 0;
69695 +
69696 + if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
69697 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
69698 + return 0;
69699 + } else if (unlikely(!(mode & GR_EXEC))) {
69700 + return 0;
69701 + } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
69702 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
69703 + return 1;
69704 + }
69705 +
69706 + return 1;
69707 +}
69708 +
69709 +void
69710 +gr_acl_handle_psacct(struct task_struct *task, const long code)
69711 +{
69712 + unsigned long runtime, cputime;
69713 + cputime_t utime, stime;
69714 + unsigned int wday, cday;
69715 + __u8 whr, chr;
69716 + __u8 wmin, cmin;
69717 + __u8 wsec, csec;
69718 + struct timespec timeval;
69719 +
69720 + if (unlikely(!(gr_status & GR_READY) || !task->acl ||
69721 + !(task->acl->mode & GR_PROCACCT)))
69722 + return;
69723 +
69724 + do_posix_clock_monotonic_gettime(&timeval);
69725 + runtime = timeval.tv_sec - task->start_time.tv_sec;
69726 + wday = runtime / (60 * 60 * 24);
69727 + runtime -= wday * (60 * 60 * 24);
69728 + whr = runtime / (60 * 60);
69729 + runtime -= whr * (60 * 60);
69730 + wmin = runtime / 60;
69731 + runtime -= wmin * 60;
69732 + wsec = runtime;
69733 +
69734 + task_cputime(task, &utime, &stime);
69735 + cputime = cputime_to_secs(utime + stime);
69736 + cday = cputime / (60 * 60 * 24);
69737 + cputime -= cday * (60 * 60 * 24);
69738 + chr = cputime / (60 * 60);
69739 + cputime -= chr * (60 * 60);
69740 + cmin = cputime / 60;
69741 + cputime -= cmin * 60;
69742 + csec = cputime;
69743 +
69744 + gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
69745 +
69746 + return;
69747 +}
69748 +
69749 +#ifdef CONFIG_TASKSTATS
69750 +int gr_is_taskstats_denied(int pid)
69751 +{
69752 + struct task_struct *task;
69753 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
69754 + const struct cred *cred;
69755 +#endif
69756 + int ret = 0;
69757 +
69758 + /* restrict taskstats viewing to un-chrooted root users
69759 + who have the 'view' subject flag if the RBAC system is enabled
69760 + */
69761 +
69762 + rcu_read_lock();
69763 + read_lock(&tasklist_lock);
69764 + task = find_task_by_vpid(pid);
69765 + if (task) {
69766 +#ifdef CONFIG_GRKERNSEC_CHROOT
69767 + if (proc_is_chrooted(task))
69768 + ret = -EACCES;
69769 +#endif
69770 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
69771 + cred = __task_cred(task);
69772 +#ifdef CONFIG_GRKERNSEC_PROC_USER
69773 + if (gr_is_global_nonroot(cred->uid))
69774 + ret = -EACCES;
69775 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
69776 + if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
69777 + ret = -EACCES;
69778 +#endif
69779 +#endif
69780 + if (gr_status & GR_READY) {
69781 + if (!(task->acl->mode & GR_VIEW))
69782 + ret = -EACCES;
69783 + }
69784 + } else
69785 + ret = -ENOENT;
69786 +
69787 + read_unlock(&tasklist_lock);
69788 + rcu_read_unlock();
69789 +
69790 + return ret;
69791 +}
69792 +#endif
69793 +
69794 +/* AUXV entries are filled via a descendant of search_binary_handler
69795 + after we've already applied the subject for the target
69796 +*/
69797 +int gr_acl_enable_at_secure(void)
69798 +{
69799 + if (unlikely(!(gr_status & GR_READY)))
69800 + return 0;
69801 +
69802 + if (current->acl->mode & GR_ATSECURE)
69803 + return 1;
69804 +
69805 + return 0;
69806 +}
69807 +
69808 +int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino)
69809 +{
69810 + struct task_struct *task = current;
69811 + struct dentry *dentry = file->f_path.dentry;
69812 + struct vfsmount *mnt = file->f_path.mnt;
69813 + struct acl_object_label *obj, *tmp;
69814 + struct acl_subject_label *subj;
69815 + unsigned int bufsize;
69816 + int is_not_root;
69817 + char *path;
69818 + dev_t dev = __get_dev(dentry);
69819 +
69820 + if (unlikely(!(gr_status & GR_READY)))
69821 + return 1;
69822 +
69823 + if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
69824 + return 1;
69825 +
69826 + /* ignore Eric Biederman */
69827 + if (IS_PRIVATE(dentry->d_inode))
69828 + return 1;
69829 +
69830 + subj = task->acl;
69831 + read_lock(&gr_inode_lock);
69832 + do {
69833 + obj = lookup_acl_obj_label(ino, dev, subj);
69834 + if (obj != NULL) {
69835 + read_unlock(&gr_inode_lock);
69836 + return (obj->mode & GR_FIND) ? 1 : 0;
69837 + }
69838 + } while ((subj = subj->parent_subject));
69839 + read_unlock(&gr_inode_lock);
69840 +
69841 + /* this is purely an optimization since we're looking for an object
69842 + for the directory we're doing a readdir on
69843 + if it's possible for any globbed object to match the entry we're
69844 + filling into the directory, then the object we find here will be
69845 + an anchor point with attached globbed objects
69846 + */
69847 + obj = chk_obj_label_noglob(dentry, mnt, task->acl);
69848 + if (obj->globbed == NULL)
69849 + return (obj->mode & GR_FIND) ? 1 : 0;
69850 +
69851 + is_not_root = ((obj->filename[0] == '/') &&
69852 + (obj->filename[1] == '\0')) ? 0 : 1;
69853 + bufsize = PAGE_SIZE - namelen - is_not_root;
69854 +
69855 + /* check bufsize > PAGE_SIZE || bufsize == 0 */
69856 + if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
69857 + return 1;
69858 +
69859 + preempt_disable();
69860 + path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
69861 + bufsize);
69862 +
69863 + bufsize = strlen(path);
69864 +
69865 + /* if base is "/", don't append an additional slash */
69866 + if (is_not_root)
69867 + *(path + bufsize) = '/';
69868 + memcpy(path + bufsize + is_not_root, name, namelen);
69869 + *(path + bufsize + namelen + is_not_root) = '\0';
69870 +
69871 + tmp = obj->globbed;
69872 + while (tmp) {
69873 + if (!glob_match(tmp->filename, path)) {
69874 + preempt_enable();
69875 + return (tmp->mode & GR_FIND) ? 1 : 0;
69876 + }
69877 + tmp = tmp->next;
69878 + }
69879 + preempt_enable();
69880 + return (obj->mode & GR_FIND) ? 1 : 0;
69881 +}
69882 +
69883 +void gr_put_exec_file(struct task_struct *task)
69884 +{
69885 + struct file *filp;
69886 +
69887 + write_lock(&grsec_exec_file_lock);
69888 + filp = task->exec_file;
69889 + task->exec_file = NULL;
69890 + write_unlock(&grsec_exec_file_lock);
69891 +
69892 + if (filp)
69893 + fput(filp);
69894 +
69895 + return;
69896 +}
69897 +
69898 +
69899 +#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
69900 +EXPORT_SYMBOL_GPL(gr_acl_is_enabled);
69901 +#endif
69902 +#ifdef CONFIG_SECURITY
69903 +EXPORT_SYMBOL_GPL(gr_check_user_change);
69904 +EXPORT_SYMBOL_GPL(gr_check_group_change);
69905 +#endif
69906 +
69907 diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
69908 new file mode 100644
69909 index 0000000..18ffbbd
69910 --- /dev/null
69911 +++ b/grsecurity/gracl_alloc.c
69912 @@ -0,0 +1,105 @@
69913 +#include <linux/kernel.h>
69914 +#include <linux/mm.h>
69915 +#include <linux/slab.h>
69916 +#include <linux/vmalloc.h>
69917 +#include <linux/gracl.h>
69918 +#include <linux/grsecurity.h>
69919 +
69920 +static struct gr_alloc_state __current_alloc_state = { 1, 1, NULL };
69921 +struct gr_alloc_state *current_alloc_state = &__current_alloc_state;
69922 +
69923 +static __inline__ int
69924 +alloc_pop(void)
69925 +{
69926 + if (current_alloc_state->alloc_stack_next == 1)
69927 + return 0;
69928 +
69929 + kfree(current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 2]);
69930 +
69931 + current_alloc_state->alloc_stack_next--;
69932 +
69933 + return 1;
69934 +}
69935 +
69936 +static __inline__ int
69937 +alloc_push(void *buf)
69938 +{
69939 + if (current_alloc_state->alloc_stack_next >= current_alloc_state->alloc_stack_size)
69940 + return 1;
69941 +
69942 + current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 1] = buf;
69943 +
69944 + current_alloc_state->alloc_stack_next++;
69945 +
69946 + return 0;
69947 +}
69948 +
69949 +void *
69950 +acl_alloc(unsigned long len)
69951 +{
69952 + void *ret = NULL;
69953 +
69954 + if (!len || len > PAGE_SIZE)
69955 + goto out;
69956 +
69957 + ret = kmalloc(len, GFP_KERNEL);
69958 +
69959 + if (ret) {
69960 + if (alloc_push(ret)) {
69961 + kfree(ret);
69962 + ret = NULL;
69963 + }
69964 + }
69965 +
69966 +out:
69967 + return ret;
69968 +}
69969 +
69970 +void *
69971 +acl_alloc_num(unsigned long num, unsigned long len)
69972 +{
69973 + if (!len || (num > (PAGE_SIZE / len)))
69974 + return NULL;
69975 +
69976 + return acl_alloc(num * len);
69977 +}
69978 +
69979 +void
69980 +acl_free_all(void)
69981 +{
69982 + if (!current_alloc_state->alloc_stack)
69983 + return;
69984 +
69985 + while (alloc_pop()) ;
69986 +
69987 + if (current_alloc_state->alloc_stack) {
69988 + if ((current_alloc_state->alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
69989 + kfree(current_alloc_state->alloc_stack);
69990 + else
69991 + vfree(current_alloc_state->alloc_stack);
69992 + }
69993 +
69994 + current_alloc_state->alloc_stack = NULL;
69995 + current_alloc_state->alloc_stack_size = 1;
69996 + current_alloc_state->alloc_stack_next = 1;
69997 +
69998 + return;
69999 +}
70000 +
70001 +int
70002 +acl_alloc_stack_init(unsigned long size)
70003 +{
70004 + if ((size * sizeof (void *)) <= PAGE_SIZE)
70005 + current_alloc_state->alloc_stack =
70006 + (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
70007 + else
70008 + current_alloc_state->alloc_stack = (void **) vmalloc(size * sizeof (void *));
70009 +
70010 + current_alloc_state->alloc_stack_size = size;
70011 + current_alloc_state->alloc_stack_next = 1;
70012 +
70013 + if (!current_alloc_state->alloc_stack)
70014 + return 0;
70015 + else
70016 + return 1;
70017 +}
70018 diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
70019 new file mode 100644
70020 index 0000000..bdd51ea
70021 --- /dev/null
70022 +++ b/grsecurity/gracl_cap.c
70023 @@ -0,0 +1,110 @@
70024 +#include <linux/kernel.h>
70025 +#include <linux/module.h>
70026 +#include <linux/sched.h>
70027 +#include <linux/gracl.h>
70028 +#include <linux/grsecurity.h>
70029 +#include <linux/grinternal.h>
70030 +
70031 +extern const char *captab_log[];
70032 +extern int captab_log_entries;
70033 +
70034 +int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
70035 +{
70036 + struct acl_subject_label *curracl;
70037 + kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
70038 + kernel_cap_t cap_audit = __cap_empty_set;
70039 +
70040 + if (!gr_acl_is_enabled())
70041 + return 1;
70042 +
70043 + curracl = task->acl;
70044 +
70045 + cap_drop = curracl->cap_lower;
70046 + cap_mask = curracl->cap_mask;
70047 + cap_audit = curracl->cap_invert_audit;
70048 +
70049 + while ((curracl = curracl->parent_subject)) {
70050 + /* if the cap isn't specified in the current computed mask but is specified in the
70051 + current level subject, and is lowered in the current level subject, then add
70052 + it to the set of dropped capabilities
70053 + otherwise, add the current level subject's mask to the current computed mask
70054 + */
70055 + if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
70056 + cap_raise(cap_mask, cap);
70057 + if (cap_raised(curracl->cap_lower, cap))
70058 + cap_raise(cap_drop, cap);
70059 + if (cap_raised(curracl->cap_invert_audit, cap))
70060 + cap_raise(cap_audit, cap);
70061 + }
70062 + }
70063 +
70064 + if (!cap_raised(cap_drop, cap)) {
70065 + if (cap_raised(cap_audit, cap))
70066 + gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
70067 + return 1;
70068 + }
70069 +
70070 + curracl = task->acl;
70071 +
70072 + if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN))
70073 + && cap_raised(cred->cap_effective, cap)) {
70074 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
70075 + task->role->roletype, GR_GLOBAL_UID(cred->uid),
70076 + GR_GLOBAL_GID(cred->gid), task->exec_file ?
70077 + gr_to_filename(task->exec_file->f_path.dentry,
70078 + task->exec_file->f_path.mnt) : curracl->filename,
70079 + curracl->filename, 0UL,
70080 + 0UL, "", (unsigned long) cap, &task->signal->saved_ip);
70081 + return 1;
70082 + }
70083 +
70084 + if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
70085 + gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
70086 +
70087 + return 0;
70088 +}
70089 +
70090 +int
70091 +gr_acl_is_capable(const int cap)
70092 +{
70093 + return gr_task_acl_is_capable(current, current_cred(), cap);
70094 +}
70095 +
70096 +int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
70097 +{
70098 + struct acl_subject_label *curracl;
70099 + kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
70100 +
70101 + if (!gr_acl_is_enabled())
70102 + return 1;
70103 +
70104 + curracl = task->acl;
70105 +
70106 + cap_drop = curracl->cap_lower;
70107 + cap_mask = curracl->cap_mask;
70108 +
70109 + while ((curracl = curracl->parent_subject)) {
70110 + /* if the cap isn't specified in the current computed mask but is specified in the
70111 + current level subject, and is lowered in the current level subject, then add
70112 + it to the set of dropped capabilities
70113 + otherwise, add the current level subject's mask to the current computed mask
70114 + */
70115 + if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
70116 + cap_raise(cap_mask, cap);
70117 + if (cap_raised(curracl->cap_lower, cap))
70118 + cap_raise(cap_drop, cap);
70119 + }
70120 + }
70121 +
70122 + if (!cap_raised(cap_drop, cap))
70123 + return 1;
70124 +
70125 + return 0;
70126 +}
70127 +
70128 +int
70129 +gr_acl_is_capable_nolog(const int cap)
70130 +{
70131 + return gr_task_acl_is_capable_nolog(current, cap);
70132 +}
70133 +
70134 diff --git a/grsecurity/gracl_compat.c b/grsecurity/gracl_compat.c
70135 new file mode 100644
70136 index 0000000..ca25605
70137 --- /dev/null
70138 +++ b/grsecurity/gracl_compat.c
70139 @@ -0,0 +1,270 @@
70140 +#include <linux/kernel.h>
70141 +#include <linux/gracl.h>
70142 +#include <linux/compat.h>
70143 +#include <linux/gracl_compat.h>
70144 +
70145 +#include <asm/uaccess.h>
70146 +
70147 +int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap)
70148 +{
70149 + struct gr_arg_wrapper_compat uwrapcompat;
70150 +
70151 + if (copy_from_user(&uwrapcompat, buf, sizeof(uwrapcompat)))
70152 + return -EFAULT;
70153 +
70154 + if (((uwrapcompat.version != GRSECURITY_VERSION) &&
70155 + (uwrapcompat.version != 0x2901)) ||
70156 + (uwrapcompat.size != sizeof(struct gr_arg_compat)))
70157 + return -EINVAL;
70158 +
70159 + uwrap->arg = compat_ptr(uwrapcompat.arg);
70160 + uwrap->version = uwrapcompat.version;
70161 + uwrap->size = sizeof(struct gr_arg);
70162 +
70163 + return 0;
70164 +}
70165 +
70166 +int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg)
70167 +{
70168 + struct gr_arg_compat argcompat;
70169 +
70170 + if (copy_from_user(&argcompat, buf, sizeof(argcompat)))
70171 + return -EFAULT;
70172 +
70173 + arg->role_db.r_table = compat_ptr(argcompat.role_db.r_table);
70174 + arg->role_db.num_pointers = argcompat.role_db.num_pointers;
70175 + arg->role_db.num_roles = argcompat.role_db.num_roles;
70176 + arg->role_db.num_domain_children = argcompat.role_db.num_domain_children;
70177 + arg->role_db.num_subjects = argcompat.role_db.num_subjects;
70178 + arg->role_db.num_objects = argcompat.role_db.num_objects;
70179 +
70180 + memcpy(&arg->pw, &argcompat.pw, sizeof(arg->pw));
70181 + memcpy(&arg->salt, &argcompat.salt, sizeof(arg->salt));
70182 + memcpy(&arg->sum, &argcompat.sum, sizeof(arg->sum));
70183 + memcpy(&arg->sp_role, &argcompat.sp_role, sizeof(arg->sp_role));
70184 + arg->sprole_pws = compat_ptr(argcompat.sprole_pws);
70185 + arg->segv_device = argcompat.segv_device;
70186 + arg->segv_inode = argcompat.segv_inode;
70187 + arg->segv_uid = argcompat.segv_uid;
70188 + arg->num_sprole_pws = argcompat.num_sprole_pws;
70189 + arg->mode = argcompat.mode;
70190 +
70191 + return 0;
70192 +}
70193 +
70194 +int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp)
70195 +{
70196 + struct acl_object_label_compat objcompat;
70197 +
70198 + if (copy_from_user(&objcompat, userp, sizeof(objcompat)))
70199 + return -EFAULT;
70200 +
70201 + obj->filename = compat_ptr(objcompat.filename);
70202 + obj->inode = objcompat.inode;
70203 + obj->device = objcompat.device;
70204 + obj->mode = objcompat.mode;
70205 +
70206 + obj->nested = compat_ptr(objcompat.nested);
70207 + obj->globbed = compat_ptr(objcompat.globbed);
70208 +
70209 + obj->prev = compat_ptr(objcompat.prev);
70210 + obj->next = compat_ptr(objcompat.next);
70211 +
70212 + return 0;
70213 +}
70214 +
70215 +int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp)
70216 +{
70217 + unsigned int i;
70218 + struct acl_subject_label_compat subjcompat;
70219 +
70220 + if (copy_from_user(&subjcompat, userp, sizeof(subjcompat)))
70221 + return -EFAULT;
70222 +
70223 + subj->filename = compat_ptr(subjcompat.filename);
70224 + subj->inode = subjcompat.inode;
70225 + subj->device = subjcompat.device;
70226 + subj->mode = subjcompat.mode;
70227 + subj->cap_mask = subjcompat.cap_mask;
70228 + subj->cap_lower = subjcompat.cap_lower;
70229 + subj->cap_invert_audit = subjcompat.cap_invert_audit;
70230 +
70231 + for (i = 0; i < GR_NLIMITS; i++) {
70232 + if (subjcompat.res[i].rlim_cur == COMPAT_RLIM_INFINITY)
70233 + subj->res[i].rlim_cur = RLIM_INFINITY;
70234 + else
70235 + subj->res[i].rlim_cur = subjcompat.res[i].rlim_cur;
70236 + if (subjcompat.res[i].rlim_max == COMPAT_RLIM_INFINITY)
70237 + subj->res[i].rlim_max = RLIM_INFINITY;
70238 + else
70239 + subj->res[i].rlim_max = subjcompat.res[i].rlim_max;
70240 + }
70241 + subj->resmask = subjcompat.resmask;
70242 +
70243 + subj->user_trans_type = subjcompat.user_trans_type;
70244 + subj->group_trans_type = subjcompat.group_trans_type;
70245 + subj->user_transitions = compat_ptr(subjcompat.user_transitions);
70246 + subj->group_transitions = compat_ptr(subjcompat.group_transitions);
70247 + subj->user_trans_num = subjcompat.user_trans_num;
70248 + subj->group_trans_num = subjcompat.group_trans_num;
70249 +
70250 + memcpy(&subj->sock_families, &subjcompat.sock_families, sizeof(subj->sock_families));
70251 + memcpy(&subj->ip_proto, &subjcompat.ip_proto, sizeof(subj->ip_proto));
70252 + subj->ip_type = subjcompat.ip_type;
70253 + subj->ips = compat_ptr(subjcompat.ips);
70254 + subj->ip_num = subjcompat.ip_num;
70255 + subj->inaddr_any_override = subjcompat.inaddr_any_override;
70256 +
70257 + subj->crashes = subjcompat.crashes;
70258 + subj->expires = subjcompat.expires;
70259 +
70260 + subj->parent_subject = compat_ptr(subjcompat.parent_subject);
70261 + subj->hash = compat_ptr(subjcompat.hash);
70262 + subj->prev = compat_ptr(subjcompat.prev);
70263 + subj->next = compat_ptr(subjcompat.next);
70264 +
70265 + subj->obj_hash = compat_ptr(subjcompat.obj_hash);
70266 + subj->obj_hash_size = subjcompat.obj_hash_size;
70267 + subj->pax_flags = subjcompat.pax_flags;
70268 +
70269 + return 0;
70270 +}
70271 +
70272 +int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp)
70273 +{
70274 + struct acl_role_label_compat rolecompat;
70275 +
70276 + if (copy_from_user(&rolecompat, userp, sizeof(rolecompat)))
70277 + return -EFAULT;
70278 +
70279 + role->rolename = compat_ptr(rolecompat.rolename);
70280 + role->uidgid = rolecompat.uidgid;
70281 + role->roletype = rolecompat.roletype;
70282 +
70283 + role->auth_attempts = rolecompat.auth_attempts;
70284 + role->expires = rolecompat.expires;
70285 +
70286 + role->root_label = compat_ptr(rolecompat.root_label);
70287 + role->hash = compat_ptr(rolecompat.hash);
70288 +
70289 + role->prev = compat_ptr(rolecompat.prev);
70290 + role->next = compat_ptr(rolecompat.next);
70291 +
70292 + role->transitions = compat_ptr(rolecompat.transitions);
70293 + role->allowed_ips = compat_ptr(rolecompat.allowed_ips);
70294 + role->domain_children = compat_ptr(rolecompat.domain_children);
70295 + role->domain_child_num = rolecompat.domain_child_num;
70296 +
70297 + role->umask = rolecompat.umask;
70298 +
70299 + role->subj_hash = compat_ptr(rolecompat.subj_hash);
70300 + role->subj_hash_size = rolecompat.subj_hash_size;
70301 +
70302 + return 0;
70303 +}
70304 +
70305 +int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
70306 +{
70307 + struct role_allowed_ip_compat roleip_compat;
70308 +
70309 + if (copy_from_user(&roleip_compat, userp, sizeof(roleip_compat)))
70310 + return -EFAULT;
70311 +
70312 + roleip->addr = roleip_compat.addr;
70313 + roleip->netmask = roleip_compat.netmask;
70314 +
70315 + roleip->prev = compat_ptr(roleip_compat.prev);
70316 + roleip->next = compat_ptr(roleip_compat.next);
70317 +
70318 + return 0;
70319 +}
70320 +
70321 +int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp)
70322 +{
70323 + struct role_transition_compat trans_compat;
70324 +
70325 + if (copy_from_user(&trans_compat, userp, sizeof(trans_compat)))
70326 + return -EFAULT;
70327 +
70328 + trans->rolename = compat_ptr(trans_compat.rolename);
70329 +
70330 + trans->prev = compat_ptr(trans_compat.prev);
70331 + trans->next = compat_ptr(trans_compat.next);
70332 +
70333 + return 0;
70334 +
70335 +}
70336 +
70337 +int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
70338 +{
70339 + struct gr_hash_struct_compat hash_compat;
70340 +
70341 + if (copy_from_user(&hash_compat, userp, sizeof(hash_compat)))
70342 + return -EFAULT;
70343 +
70344 + hash->table = compat_ptr(hash_compat.table);
70345 + hash->nametable = compat_ptr(hash_compat.nametable);
70346 + hash->first = compat_ptr(hash_compat.first);
70347 +
70348 + hash->table_size = hash_compat.table_size;
70349 + hash->used_size = hash_compat.used_size;
70350 +
70351 + hash->type = hash_compat.type;
70352 +
70353 + return 0;
70354 +}
70355 +
70356 +int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp)
70357 +{
70358 + compat_uptr_t ptrcompat;
70359 +
70360 + if (copy_from_user(&ptrcompat, userp + (idx * sizeof(ptrcompat)), sizeof(ptrcompat)))
70361 + return -EFAULT;
70362 +
70363 + *(void **)ptr = compat_ptr(ptrcompat);
70364 +
70365 + return 0;
70366 +}
70367 +
70368 +int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp)
70369 +{
70370 + struct acl_ip_label_compat ip_compat;
70371 +
70372 + if (copy_from_user(&ip_compat, userp, sizeof(ip_compat)))
70373 + return -EFAULT;
70374 +
70375 + ip->iface = compat_ptr(ip_compat.iface);
70376 + ip->addr = ip_compat.addr;
70377 + ip->netmask = ip_compat.netmask;
70378 + ip->low = ip_compat.low;
70379 + ip->high = ip_compat.high;
70380 + ip->mode = ip_compat.mode;
70381 + ip->type = ip_compat.type;
70382 +
70383 + memcpy(&ip->proto, &ip_compat.proto, sizeof(ip->proto));
70384 +
70385 + ip->prev = compat_ptr(ip_compat.prev);
70386 + ip->next = compat_ptr(ip_compat.next);
70387 +
70388 + return 0;
70389 +}
70390 +
70391 +int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
70392 +{
70393 + struct sprole_pw_compat pw_compat;
70394 +
70395 + if (copy_from_user(&pw_compat, (const void *)userp + (sizeof(pw_compat) * idx), sizeof(pw_compat)))
70396 + return -EFAULT;
70397 +
70398 + pw->rolename = compat_ptr(pw_compat.rolename);
70399 + memcpy(&pw->salt, pw_compat.salt, sizeof(pw->salt));
70400 + memcpy(&pw->sum, pw_compat.sum, sizeof(pw->sum));
70401 +
70402 + return 0;
70403 +}
70404 +
70405 +size_t get_gr_arg_wrapper_size_compat(void)
70406 +{
70407 + return sizeof(struct gr_arg_wrapper_compat);
70408 +}
70409 +
70410 diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
70411 new file mode 100644
70412 index 0000000..4008fdc
70413 --- /dev/null
70414 +++ b/grsecurity/gracl_fs.c
70415 @@ -0,0 +1,445 @@
70416 +#include <linux/kernel.h>
70417 +#include <linux/sched.h>
70418 +#include <linux/types.h>
70419 +#include <linux/fs.h>
70420 +#include <linux/file.h>
70421 +#include <linux/stat.h>
70422 +#include <linux/grsecurity.h>
70423 +#include <linux/grinternal.h>
70424 +#include <linux/gracl.h>
70425 +
70426 +umode_t
70427 +gr_acl_umask(void)
70428 +{
70429 + if (unlikely(!gr_acl_is_enabled()))
70430 + return 0;
70431 +
70432 + return current->role->umask;
70433 +}
70434 +
70435 +__u32
70436 +gr_acl_handle_hidden_file(const struct dentry * dentry,
70437 + const struct vfsmount * mnt)
70438 +{
70439 + __u32 mode;
70440 +
70441 + if (unlikely(d_is_negative(dentry)))
70442 + return GR_FIND;
70443 +
70444 + mode =
70445 + gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
70446 +
70447 + if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
70448 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
70449 + return mode;
70450 + } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
70451 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
70452 + return 0;
70453 + } else if (unlikely(!(mode & GR_FIND)))
70454 + return 0;
70455 +
70456 + return GR_FIND;
70457 +}
70458 +
70459 +__u32
70460 +gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
70461 + int acc_mode)
70462 +{
70463 + __u32 reqmode = GR_FIND;
70464 + __u32 mode;
70465 +
70466 + if (unlikely(d_is_negative(dentry)))
70467 + return reqmode;
70468 +
70469 + if (acc_mode & MAY_APPEND)
70470 + reqmode |= GR_APPEND;
70471 + else if (acc_mode & MAY_WRITE)
70472 + reqmode |= GR_WRITE;
70473 + if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
70474 + reqmode |= GR_READ;
70475 +
70476 + mode =
70477 + gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
70478 + mnt);
70479 +
70480 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
70481 + gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
70482 + reqmode & GR_READ ? " reading" : "",
70483 + reqmode & GR_WRITE ? " writing" : reqmode &
70484 + GR_APPEND ? " appending" : "");
70485 + return reqmode;
70486 + } else
70487 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
70488 + {
70489 + gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
70490 + reqmode & GR_READ ? " reading" : "",
70491 + reqmode & GR_WRITE ? " writing" : reqmode &
70492 + GR_APPEND ? " appending" : "");
70493 + return 0;
70494 + } else if (unlikely((mode & reqmode) != reqmode))
70495 + return 0;
70496 +
70497 + return reqmode;
70498 +}
70499 +
70500 +__u32
70501 +gr_acl_handle_creat(const struct dentry * dentry,
70502 + const struct dentry * p_dentry,
70503 + const struct vfsmount * p_mnt, int open_flags, int acc_mode,
70504 + const int imode)
70505 +{
70506 + __u32 reqmode = GR_WRITE | GR_CREATE;
70507 + __u32 mode;
70508 +
70509 + if (acc_mode & MAY_APPEND)
70510 + reqmode |= GR_APPEND;
70511 + // if a directory was required or the directory already exists, then
70512 + // don't count this open as a read
70513 + if ((acc_mode & MAY_READ) &&
70514 + !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
70515 + reqmode |= GR_READ;
70516 + if ((open_flags & O_CREAT) &&
70517 + ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
70518 + reqmode |= GR_SETID;
70519 +
70520 + mode =
70521 + gr_check_create(dentry, p_dentry, p_mnt,
70522 + reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
70523 +
70524 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
70525 + gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
70526 + reqmode & GR_READ ? " reading" : "",
70527 + reqmode & GR_WRITE ? " writing" : reqmode &
70528 + GR_APPEND ? " appending" : "");
70529 + return reqmode;
70530 + } else
70531 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
70532 + {
70533 + gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
70534 + reqmode & GR_READ ? " reading" : "",
70535 + reqmode & GR_WRITE ? " writing" : reqmode &
70536 + GR_APPEND ? " appending" : "");
70537 + return 0;
70538 + } else if (unlikely((mode & reqmode) != reqmode))
70539 + return 0;
70540 +
70541 + return reqmode;
70542 +}
70543 +
70544 +__u32
70545 +gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
70546 + const int fmode)
70547 +{
70548 + __u32 mode, reqmode = GR_FIND;
70549 +
70550 + if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
70551 + reqmode |= GR_EXEC;
70552 + if (fmode & S_IWOTH)
70553 + reqmode |= GR_WRITE;
70554 + if (fmode & S_IROTH)
70555 + reqmode |= GR_READ;
70556 +
70557 + mode =
70558 + gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
70559 + mnt);
70560 +
70561 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
70562 + gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
70563 + reqmode & GR_READ ? " reading" : "",
70564 + reqmode & GR_WRITE ? " writing" : "",
70565 + reqmode & GR_EXEC ? " executing" : "");
70566 + return reqmode;
70567 + } else
70568 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
70569 + {
70570 + gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
70571 + reqmode & GR_READ ? " reading" : "",
70572 + reqmode & GR_WRITE ? " writing" : "",
70573 + reqmode & GR_EXEC ? " executing" : "");
70574 + return 0;
70575 + } else if (unlikely((mode & reqmode) != reqmode))
70576 + return 0;
70577 +
70578 + return reqmode;
70579 +}
70580 +
70581 +static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
70582 +{
70583 + __u32 mode;
70584 +
70585 + mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
70586 +
70587 + if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
70588 + gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
70589 + return mode;
70590 + } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
70591 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
70592 + return 0;
70593 + } else if (unlikely((mode & (reqmode)) != (reqmode)))
70594 + return 0;
70595 +
70596 + return (reqmode);
70597 +}
70598 +
70599 +__u32
70600 +gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
70601 +{
70602 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
70603 +}
70604 +
70605 +__u32
70606 +gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
70607 +{
70608 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
70609 +}
70610 +
70611 +__u32
70612 +gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
70613 +{
70614 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
70615 +}
70616 +
70617 +__u32
70618 +gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
70619 +{
70620 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
70621 +}
70622 +
70623 +__u32
70624 +gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
70625 + umode_t *modeptr)
70626 +{
70627 + umode_t mode;
70628 +
70629 + *modeptr &= ~gr_acl_umask();
70630 + mode = *modeptr;
70631 +
70632 + if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
70633 + return 1;
70634 +
70635 + if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
70636 + ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
70637 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
70638 + GR_CHMOD_ACL_MSG);
70639 + } else {
70640 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
70641 + }
70642 +}
70643 +
70644 +__u32
70645 +gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
70646 +{
70647 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
70648 +}
70649 +
70650 +__u32
70651 +gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
70652 +{
70653 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
70654 +}
70655 +
70656 +__u32
70657 +gr_acl_handle_removexattr(const struct dentry *dentry, const struct vfsmount *mnt)
70658 +{
70659 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_REMOVEXATTR_ACL_MSG);
70660 +}
70661 +
70662 +__u32
70663 +gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
70664 +{
70665 + return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
70666 +}
70667 +
70668 +__u32
70669 +gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
70670 +{
70671 + return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
70672 + GR_UNIXCONNECT_ACL_MSG);
70673 +}
70674 +
70675 +/* hardlinks require at minimum create and link permission,
70676 + any additional privilege required is based on the
70677 + privilege of the file being linked to
70678 +*/
70679 +__u32
70680 +gr_acl_handle_link(const struct dentry * new_dentry,
70681 + const struct dentry * parent_dentry,
70682 + const struct vfsmount * parent_mnt,
70683 + const struct dentry * old_dentry,
70684 + const struct vfsmount * old_mnt, const struct filename *to)
70685 +{
70686 + __u32 mode;
70687 + __u32 needmode = GR_CREATE | GR_LINK;
70688 + __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
70689 +
70690 + mode =
70691 + gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
70692 + old_mnt);
70693 +
70694 + if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
70695 + gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
70696 + return mode;
70697 + } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
70698 + gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
70699 + return 0;
70700 + } else if (unlikely((mode & needmode) != needmode))
70701 + return 0;
70702 +
70703 + return 1;
70704 +}
70705 +
70706 +__u32
70707 +gr_acl_handle_symlink(const struct dentry * new_dentry,
70708 + const struct dentry * parent_dentry,
70709 + const struct vfsmount * parent_mnt, const struct filename *from)
70710 +{
70711 + __u32 needmode = GR_WRITE | GR_CREATE;
70712 + __u32 mode;
70713 +
70714 + mode =
70715 + gr_check_create(new_dentry, parent_dentry, parent_mnt,
70716 + GR_CREATE | GR_AUDIT_CREATE |
70717 + GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
70718 +
70719 + if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
70720 + gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
70721 + return mode;
70722 + } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
70723 + gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
70724 + return 0;
70725 + } else if (unlikely((mode & needmode) != needmode))
70726 + return 0;
70727 +
70728 + return (GR_WRITE | GR_CREATE);
70729 +}
70730 +
70731 +static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
70732 +{
70733 + __u32 mode;
70734 +
70735 + mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
70736 +
70737 + if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
70738 + gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
70739 + return mode;
70740 + } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
70741 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
70742 + return 0;
70743 + } else if (unlikely((mode & (reqmode)) != (reqmode)))
70744 + return 0;
70745 +
70746 + return (reqmode);
70747 +}
70748 +
70749 +__u32
70750 +gr_acl_handle_mknod(const struct dentry * new_dentry,
70751 + const struct dentry * parent_dentry,
70752 + const struct vfsmount * parent_mnt,
70753 + const int mode)
70754 +{
70755 + __u32 reqmode = GR_WRITE | GR_CREATE;
70756 + if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
70757 + reqmode |= GR_SETID;
70758 +
70759 + return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
70760 + reqmode, GR_MKNOD_ACL_MSG);
70761 +}
70762 +
70763 +__u32
70764 +gr_acl_handle_mkdir(const struct dentry *new_dentry,
70765 + const struct dentry *parent_dentry,
70766 + const struct vfsmount *parent_mnt)
70767 +{
70768 + return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
70769 + GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
70770 +}
70771 +
70772 +#define RENAME_CHECK_SUCCESS(old, new) \
70773 + (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
70774 + ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
70775 +
70776 +int
70777 +gr_acl_handle_rename(struct dentry *new_dentry,
70778 + struct dentry *parent_dentry,
70779 + const struct vfsmount *parent_mnt,
70780 + struct dentry *old_dentry,
70781 + struct inode *old_parent_inode,
70782 + struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags)
70783 +{
70784 + __u32 comp1, comp2;
70785 + int error = 0;
70786 +
70787 + if (unlikely(!gr_acl_is_enabled()))
70788 + return 0;
70789 +
70790 + if (flags & RENAME_EXCHANGE) {
70791 + comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
70792 + GR_AUDIT_READ | GR_AUDIT_WRITE |
70793 + GR_SUPPRESS, parent_mnt);
70794 + comp2 =
70795 + gr_search_file(old_dentry,
70796 + GR_READ | GR_WRITE | GR_AUDIT_READ |
70797 + GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
70798 + } else if (d_is_negative(new_dentry)) {
70799 + comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
70800 + GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
70801 + GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
70802 + comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
70803 + GR_DELETE | GR_AUDIT_DELETE |
70804 + GR_AUDIT_READ | GR_AUDIT_WRITE |
70805 + GR_SUPPRESS, old_mnt);
70806 + } else {
70807 + comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
70808 + GR_CREATE | GR_DELETE |
70809 + GR_AUDIT_CREATE | GR_AUDIT_DELETE |
70810 + GR_AUDIT_READ | GR_AUDIT_WRITE |
70811 + GR_SUPPRESS, parent_mnt);
70812 + comp2 =
70813 + gr_search_file(old_dentry,
70814 + GR_READ | GR_WRITE | GR_AUDIT_READ |
70815 + GR_DELETE | GR_AUDIT_DELETE |
70816 + GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
70817 + }
70818 +
70819 + if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
70820 + ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
70821 + gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
70822 + else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
70823 + && !(comp2 & GR_SUPPRESS)) {
70824 + gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
70825 + error = -EACCES;
70826 + } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
70827 + error = -EACCES;
70828 +
70829 + return error;
70830 +}
70831 +
70832 +void
70833 +gr_acl_handle_exit(void)
70834 +{
70835 + u16 id;
70836 + char *rolename;
70837 +
70838 + if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
70839 + !(current->role->roletype & GR_ROLE_PERSIST))) {
70840 + id = current->acl_role_id;
70841 + rolename = current->role->rolename;
70842 + gr_set_acls(1);
70843 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
70844 + }
70845 +
70846 + gr_put_exec_file(current);
70847 + return;
70848 +}
70849 +
70850 +int
70851 +gr_acl_handle_procpidmem(const struct task_struct *task)
70852 +{
70853 + if (unlikely(!gr_acl_is_enabled()))
70854 + return 0;
70855 +
70856 + if (task != current && task->acl->mode & GR_PROTPROCFD)
70857 + return -EACCES;
70858 +
70859 + return 0;
70860 +}
70861 diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
70862 new file mode 100644
70863 index 0000000..f056b81
70864 --- /dev/null
70865 +++ b/grsecurity/gracl_ip.c
70866 @@ -0,0 +1,386 @@
70867 +#include <linux/kernel.h>
70868 +#include <asm/uaccess.h>
70869 +#include <asm/errno.h>
70870 +#include <net/sock.h>
70871 +#include <linux/file.h>
70872 +#include <linux/fs.h>
70873 +#include <linux/net.h>
70874 +#include <linux/in.h>
70875 +#include <linux/skbuff.h>
70876 +#include <linux/ip.h>
70877 +#include <linux/udp.h>
70878 +#include <linux/types.h>
70879 +#include <linux/sched.h>
70880 +#include <linux/netdevice.h>
70881 +#include <linux/inetdevice.h>
70882 +#include <linux/gracl.h>
70883 +#include <linux/grsecurity.h>
70884 +#include <linux/grinternal.h>
70885 +
70886 +#define GR_BIND 0x01
70887 +#define GR_CONNECT 0x02
70888 +#define GR_INVERT 0x04
70889 +#define GR_BINDOVERRIDE 0x08
70890 +#define GR_CONNECTOVERRIDE 0x10
70891 +#define GR_SOCK_FAMILY 0x20
70892 +
70893 +static const char * gr_protocols[IPPROTO_MAX] = {
70894 + "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
70895 + "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
70896 + "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
70897 + "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
70898 + "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
70899 + "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
70900 + "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
70901 + "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
70902 + "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
70903 + "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
70904 + "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
70905 + "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
70906 + "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
70907 + "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
70908 + "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
70909 + "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
70910 + "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
70911 + "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
70912 + "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
70913 + "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
70914 + "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
70915 + "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
70916 + "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
70917 + "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
70918 + "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
70919 + "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
70920 + "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
70921 + "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
70922 + "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
70923 + "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
70924 + "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
70925 + "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
70926 + };
70927 +
70928 +static const char * gr_socktypes[SOCK_MAX] = {
70929 + "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
70930 + "unknown:7", "unknown:8", "unknown:9", "packet"
70931 + };
70932 +
70933 +static const char * gr_sockfamilies[AF_MAX+1] = {
70934 + "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
70935 + "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
70936 + "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
70937 + "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
70938 + };
70939 +
70940 +const char *
70941 +gr_proto_to_name(unsigned char proto)
70942 +{
70943 + return gr_protocols[proto];
70944 +}
70945 +
70946 +const char *
70947 +gr_socktype_to_name(unsigned char type)
70948 +{
70949 + return gr_socktypes[type];
70950 +}
70951 +
70952 +const char *
70953 +gr_sockfamily_to_name(unsigned char family)
70954 +{
70955 + return gr_sockfamilies[family];
70956 +}
70957 +
70958 +extern const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
70959 +
70960 +int
70961 +gr_search_socket(const int domain, const int type, const int protocol)
70962 +{
70963 + struct acl_subject_label *curr;
70964 + const struct cred *cred = current_cred();
70965 +
70966 + if (unlikely(!gr_acl_is_enabled()))
70967 + goto exit;
70968 +
70969 + if ((domain < 0) || (type < 0) || (protocol < 0) ||
70970 + (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
70971 + goto exit; // let the kernel handle it
70972 +
70973 + curr = current->acl;
70974 +
70975 + if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
70976 + /* the family is allowed, if this is PF_INET allow it only if
70977 + the extra sock type/protocol checks pass */
70978 + if (domain == PF_INET)
70979 + goto inet_check;
70980 + goto exit;
70981 + } else {
70982 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
70983 + __u32 fakeip = 0;
70984 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
70985 + current->role->roletype, GR_GLOBAL_UID(cred->uid),
70986 + GR_GLOBAL_GID(cred->gid), current->exec_file ?
70987 + gr_to_filename(current->exec_file->f_path.dentry,
70988 + current->exec_file->f_path.mnt) :
70989 + curr->filename, curr->filename,
70990 + &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
70991 + &current->signal->saved_ip);
70992 + goto exit;
70993 + }
70994 + goto exit_fail;
70995 + }
70996 +
70997 +inet_check:
70998 + /* the rest of this checking is for IPv4 only */
70999 + if (!curr->ips)
71000 + goto exit;
71001 +
71002 + if ((curr->ip_type & (1U << type)) &&
71003 + (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
71004 + goto exit;
71005 +
71006 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
71007 + /* we don't place acls on raw sockets , and sometimes
71008 + dgram/ip sockets are opened for ioctl and not
71009 + bind/connect, so we'll fake a bind learn log */
71010 + if (type == SOCK_RAW || type == SOCK_PACKET) {
71011 + __u32 fakeip = 0;
71012 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
71013 + current->role->roletype, GR_GLOBAL_UID(cred->uid),
71014 + GR_GLOBAL_GID(cred->gid), current->exec_file ?
71015 + gr_to_filename(current->exec_file->f_path.dentry,
71016 + current->exec_file->f_path.mnt) :
71017 + curr->filename, curr->filename,
71018 + &fakeip, 0, type,
71019 + protocol, GR_CONNECT, &current->signal->saved_ip);
71020 + } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
71021 + __u32 fakeip = 0;
71022 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
71023 + current->role->roletype, GR_GLOBAL_UID(cred->uid),
71024 + GR_GLOBAL_GID(cred->gid), current->exec_file ?
71025 + gr_to_filename(current->exec_file->f_path.dentry,
71026 + current->exec_file->f_path.mnt) :
71027 + curr->filename, curr->filename,
71028 + &fakeip, 0, type,
71029 + protocol, GR_BIND, &current->signal->saved_ip);
71030 + }
71031 + /* we'll log when they use connect or bind */
71032 + goto exit;
71033 + }
71034 +
71035 +exit_fail:
71036 + if (domain == PF_INET)
71037 + gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain),
71038 + gr_socktype_to_name(type), gr_proto_to_name(protocol));
71039 + else if (rcu_access_pointer(net_families[domain]) != NULL)
71040 + gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain),
71041 + gr_socktype_to_name(type), protocol);
71042 +
71043 + return 0;
71044 +exit:
71045 + return 1;
71046 +}
71047 +
71048 +int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
71049 +{
71050 + if ((ip->mode & mode) &&
71051 + (ip_port >= ip->low) &&
71052 + (ip_port <= ip->high) &&
71053 + ((ntohl(ip_addr) & our_netmask) ==
71054 + (ntohl(our_addr) & our_netmask))
71055 + && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
71056 + && (ip->type & (1U << type))) {
71057 + if (ip->mode & GR_INVERT)
71058 + return 2; // specifically denied
71059 + else
71060 + return 1; // allowed
71061 + }
71062 +
71063 + return 0; // not specifically allowed, may continue parsing
71064 +}
71065 +
71066 +static int
71067 +gr_search_connectbind(const int full_mode, struct sock *sk,
71068 + struct sockaddr_in *addr, const int type)
71069 +{
71070 + char iface[IFNAMSIZ] = {0};
71071 + struct acl_subject_label *curr;
71072 + struct acl_ip_label *ip;
71073 + struct inet_sock *isk;
71074 + struct net_device *dev;
71075 + struct in_device *idev;
71076 + unsigned long i;
71077 + int ret;
71078 + int mode = full_mode & (GR_BIND | GR_CONNECT);
71079 + __u32 ip_addr = 0;
71080 + __u32 our_addr;
71081 + __u32 our_netmask;
71082 + char *p;
71083 + __u16 ip_port = 0;
71084 + const struct cred *cred = current_cred();
71085 +
71086 + if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
71087 + return 0;
71088 +
71089 + curr = current->acl;
71090 + isk = inet_sk(sk);
71091 +
71092 + /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
71093 + if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
71094 + addr->sin_addr.s_addr = curr->inaddr_any_override;
71095 + if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
71096 + struct sockaddr_in saddr;
71097 + int err;
71098 +
71099 + saddr.sin_family = AF_INET;
71100 + saddr.sin_addr.s_addr = curr->inaddr_any_override;
71101 + saddr.sin_port = isk->inet_sport;
71102 +
71103 + err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
71104 + if (err)
71105 + return err;
71106 +
71107 + err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
71108 + if (err)
71109 + return err;
71110 + }
71111 +
71112 + if (!curr->ips)
71113 + return 0;
71114 +
71115 + ip_addr = addr->sin_addr.s_addr;
71116 + ip_port = ntohs(addr->sin_port);
71117 +
71118 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
71119 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
71120 + current->role->roletype, GR_GLOBAL_UID(cred->uid),
71121 + GR_GLOBAL_GID(cred->gid), current->exec_file ?
71122 + gr_to_filename(current->exec_file->f_path.dentry,
71123 + current->exec_file->f_path.mnt) :
71124 + curr->filename, curr->filename,
71125 + &ip_addr, ip_port, type,
71126 + sk->sk_protocol, mode, &current->signal->saved_ip);
71127 + return 0;
71128 + }
71129 +
71130 + for (i = 0; i < curr->ip_num; i++) {
71131 + ip = *(curr->ips + i);
71132 + if (ip->iface != NULL) {
71133 + strncpy(iface, ip->iface, IFNAMSIZ - 1);
71134 + p = strchr(iface, ':');
71135 + if (p != NULL)
71136 + *p = '\0';
71137 + dev = dev_get_by_name(sock_net(sk), iface);
71138 + if (dev == NULL)
71139 + continue;
71140 + idev = in_dev_get(dev);
71141 + if (idev == NULL) {
71142 + dev_put(dev);
71143 + continue;
71144 + }
71145 + rcu_read_lock();
71146 + for_ifa(idev) {
71147 + if (!strcmp(ip->iface, ifa->ifa_label)) {
71148 + our_addr = ifa->ifa_address;
71149 + our_netmask = 0xffffffff;
71150 + ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
71151 + if (ret == 1) {
71152 + rcu_read_unlock();
71153 + in_dev_put(idev);
71154 + dev_put(dev);
71155 + return 0;
71156 + } else if (ret == 2) {
71157 + rcu_read_unlock();
71158 + in_dev_put(idev);
71159 + dev_put(dev);
71160 + goto denied;
71161 + }
71162 + }
71163 + } endfor_ifa(idev);
71164 + rcu_read_unlock();
71165 + in_dev_put(idev);
71166 + dev_put(dev);
71167 + } else {
71168 + our_addr = ip->addr;
71169 + our_netmask = ip->netmask;
71170 + ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
71171 + if (ret == 1)
71172 + return 0;
71173 + else if (ret == 2)
71174 + goto denied;
71175 + }
71176 + }
71177 +
71178 +denied:
71179 + if (mode == GR_BIND)
71180 + gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
71181 + else if (mode == GR_CONNECT)
71182 + gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
71183 +
71184 + return -EACCES;
71185 +}
71186 +
71187 +int
71188 +gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
71189 +{
71190 + /* always allow disconnection of dgram sockets with connect */
71191 + if (addr->sin_family == AF_UNSPEC)
71192 + return 0;
71193 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
71194 +}
71195 +
71196 +int
71197 +gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
71198 +{
71199 + return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
71200 +}
71201 +
71202 +int gr_search_listen(struct socket *sock)
71203 +{
71204 + struct sock *sk = sock->sk;
71205 + struct sockaddr_in addr;
71206 +
71207 + addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
71208 + addr.sin_port = inet_sk(sk)->inet_sport;
71209 +
71210 + return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
71211 +}
71212 +
71213 +int gr_search_accept(struct socket *sock)
71214 +{
71215 + struct sock *sk = sock->sk;
71216 + struct sockaddr_in addr;
71217 +
71218 + addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
71219 + addr.sin_port = inet_sk(sk)->inet_sport;
71220 +
71221 + return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
71222 +}
71223 +
71224 +int
71225 +gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
71226 +{
71227 + if (addr)
71228 + return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
71229 + else {
71230 + struct sockaddr_in sin;
71231 + const struct inet_sock *inet = inet_sk(sk);
71232 +
71233 + sin.sin_addr.s_addr = inet->inet_daddr;
71234 + sin.sin_port = inet->inet_dport;
71235 +
71236 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
71237 + }
71238 +}
71239 +
71240 +int
71241 +gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
71242 +{
71243 + struct sockaddr_in sin;
71244 +
71245 + if (unlikely(skb->len < sizeof (struct udphdr)))
71246 + return 0; // skip this packet
71247 +
71248 + sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
71249 + sin.sin_port = udp_hdr(skb)->source;
71250 +
71251 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
71252 +}
71253 diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
71254 new file mode 100644
71255 index 0000000..25f54ef
71256 --- /dev/null
71257 +++ b/grsecurity/gracl_learn.c
71258 @@ -0,0 +1,207 @@
71259 +#include <linux/kernel.h>
71260 +#include <linux/mm.h>
71261 +#include <linux/sched.h>
71262 +#include <linux/poll.h>
71263 +#include <linux/string.h>
71264 +#include <linux/file.h>
71265 +#include <linux/types.h>
71266 +#include <linux/vmalloc.h>
71267 +#include <linux/grinternal.h>
71268 +
71269 +extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
71270 + size_t count, loff_t *ppos);
71271 +extern int gr_acl_is_enabled(void);
71272 +
71273 +static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
71274 +static int gr_learn_attached;
71275 +
71276 +/* use a 512k buffer */
71277 +#define LEARN_BUFFER_SIZE (512 * 1024)
71278 +
71279 +static DEFINE_SPINLOCK(gr_learn_lock);
71280 +static DEFINE_MUTEX(gr_learn_user_mutex);
71281 +
71282 +/* we need to maintain two buffers, so that the kernel context of grlearn
71283 + uses a semaphore around the userspace copying, and the other kernel contexts
71284 + use a spinlock when copying into the buffer, since they cannot sleep
71285 +*/
71286 +static char *learn_buffer;
71287 +static char *learn_buffer_user;
71288 +static int learn_buffer_len;
71289 +static int learn_buffer_user_len;
71290 +
71291 +static ssize_t
71292 +read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
71293 +{
71294 + DECLARE_WAITQUEUE(wait, current);
71295 + ssize_t retval = 0;
71296 +
71297 + add_wait_queue(&learn_wait, &wait);
71298 + set_current_state(TASK_INTERRUPTIBLE);
71299 + do {
71300 + mutex_lock(&gr_learn_user_mutex);
71301 + spin_lock(&gr_learn_lock);
71302 + if (learn_buffer_len)
71303 + break;
71304 + spin_unlock(&gr_learn_lock);
71305 + mutex_unlock(&gr_learn_user_mutex);
71306 + if (file->f_flags & O_NONBLOCK) {
71307 + retval = -EAGAIN;
71308 + goto out;
71309 + }
71310 + if (signal_pending(current)) {
71311 + retval = -ERESTARTSYS;
71312 + goto out;
71313 + }
71314 +
71315 + schedule();
71316 + } while (1);
71317 +
71318 + memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
71319 + learn_buffer_user_len = learn_buffer_len;
71320 + retval = learn_buffer_len;
71321 + learn_buffer_len = 0;
71322 +
71323 + spin_unlock(&gr_learn_lock);
71324 +
71325 + if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
71326 + retval = -EFAULT;
71327 +
71328 + mutex_unlock(&gr_learn_user_mutex);
71329 +out:
71330 + set_current_state(TASK_RUNNING);
71331 + remove_wait_queue(&learn_wait, &wait);
71332 + return retval;
71333 +}
71334 +
71335 +static unsigned int
71336 +poll_learn(struct file * file, poll_table * wait)
71337 +{
71338 + poll_wait(file, &learn_wait, wait);
71339 +
71340 + if (learn_buffer_len)
71341 + return (POLLIN | POLLRDNORM);
71342 +
71343 + return 0;
71344 +}
71345 +
71346 +void
71347 +gr_clear_learn_entries(void)
71348 +{
71349 + char *tmp;
71350 +
71351 + mutex_lock(&gr_learn_user_mutex);
71352 + spin_lock(&gr_learn_lock);
71353 + tmp = learn_buffer;
71354 + learn_buffer = NULL;
71355 + spin_unlock(&gr_learn_lock);
71356 + if (tmp)
71357 + vfree(tmp);
71358 + if (learn_buffer_user != NULL) {
71359 + vfree(learn_buffer_user);
71360 + learn_buffer_user = NULL;
71361 + }
71362 + learn_buffer_len = 0;
71363 + mutex_unlock(&gr_learn_user_mutex);
71364 +
71365 + return;
71366 +}
71367 +
71368 +void
71369 +gr_add_learn_entry(const char *fmt, ...)
71370 +{
71371 + va_list args;
71372 + unsigned int len;
71373 +
71374 + if (!gr_learn_attached)
71375 + return;
71376 +
71377 + spin_lock(&gr_learn_lock);
71378 +
71379 + /* leave a gap at the end so we know when it's "full" but don't have to
71380 + compute the exact length of the string we're trying to append
71381 + */
71382 + if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
71383 + spin_unlock(&gr_learn_lock);
71384 + wake_up_interruptible(&learn_wait);
71385 + return;
71386 + }
71387 + if (learn_buffer == NULL) {
71388 + spin_unlock(&gr_learn_lock);
71389 + return;
71390 + }
71391 +
71392 + va_start(args, fmt);
71393 + len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
71394 + va_end(args);
71395 +
71396 + learn_buffer_len += len + 1;
71397 +
71398 + spin_unlock(&gr_learn_lock);
71399 + wake_up_interruptible(&learn_wait);
71400 +
71401 + return;
71402 +}
71403 +
71404 +static int
71405 +open_learn(struct inode *inode, struct file *file)
71406 +{
71407 + if (file->f_mode & FMODE_READ && gr_learn_attached)
71408 + return -EBUSY;
71409 + if (file->f_mode & FMODE_READ) {
71410 + int retval = 0;
71411 + mutex_lock(&gr_learn_user_mutex);
71412 + if (learn_buffer == NULL)
71413 + learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
71414 + if (learn_buffer_user == NULL)
71415 + learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
71416 + if (learn_buffer == NULL) {
71417 + retval = -ENOMEM;
71418 + goto out_error;
71419 + }
71420 + if (learn_buffer_user == NULL) {
71421 + retval = -ENOMEM;
71422 + goto out_error;
71423 + }
71424 + learn_buffer_len = 0;
71425 + learn_buffer_user_len = 0;
71426 + gr_learn_attached = 1;
71427 +out_error:
71428 + mutex_unlock(&gr_learn_user_mutex);
71429 + return retval;
71430 + }
71431 + return 0;
71432 +}
71433 +
71434 +static int
71435 +close_learn(struct inode *inode, struct file *file)
71436 +{
71437 + if (file->f_mode & FMODE_READ) {
71438 + char *tmp = NULL;
71439 + mutex_lock(&gr_learn_user_mutex);
71440 + spin_lock(&gr_learn_lock);
71441 + tmp = learn_buffer;
71442 + learn_buffer = NULL;
71443 + spin_unlock(&gr_learn_lock);
71444 + if (tmp)
71445 + vfree(tmp);
71446 + if (learn_buffer_user != NULL) {
71447 + vfree(learn_buffer_user);
71448 + learn_buffer_user = NULL;
71449 + }
71450 + learn_buffer_len = 0;
71451 + learn_buffer_user_len = 0;
71452 + gr_learn_attached = 0;
71453 + mutex_unlock(&gr_learn_user_mutex);
71454 + }
71455 +
71456 + return 0;
71457 +}
71458 +
71459 +const struct file_operations grsec_fops = {
71460 + .read = read_learn,
71461 + .write = write_grsec_handler,
71462 + .open = open_learn,
71463 + .release = close_learn,
71464 + .poll = poll_learn,
71465 +};
71466 diff --git a/grsecurity/gracl_policy.c b/grsecurity/gracl_policy.c
71467 new file mode 100644
71468 index 0000000..361a099
71469 --- /dev/null
71470 +++ b/grsecurity/gracl_policy.c
71471 @@ -0,0 +1,1782 @@
71472 +#include <linux/kernel.h>
71473 +#include <linux/module.h>
71474 +#include <linux/sched.h>
71475 +#include <linux/mm.h>
71476 +#include <linux/file.h>
71477 +#include <linux/fs.h>
71478 +#include <linux/namei.h>
71479 +#include <linux/mount.h>
71480 +#include <linux/tty.h>
71481 +#include <linux/proc_fs.h>
71482 +#include <linux/lglock.h>
71483 +#include <linux/slab.h>
71484 +#include <linux/vmalloc.h>
71485 +#include <linux/types.h>
71486 +#include <linux/sysctl.h>
71487 +#include <linux/netdevice.h>
71488 +#include <linux/ptrace.h>
71489 +#include <linux/gracl.h>
71490 +#include <linux/gralloc.h>
71491 +#include <linux/security.h>
71492 +#include <linux/grinternal.h>
71493 +#include <linux/pid_namespace.h>
71494 +#include <linux/stop_machine.h>
71495 +#include <linux/fdtable.h>
71496 +#include <linux/percpu.h>
71497 +#include <linux/lglock.h>
71498 +#include <linux/hugetlb.h>
71499 +#include <linux/posix-timers.h>
71500 +#include "../fs/mount.h"
71501 +
71502 +#include <asm/uaccess.h>
71503 +#include <asm/errno.h>
71504 +#include <asm/mman.h>
71505 +
71506 +extern struct gr_policy_state *polstate;
71507 +
71508 +#define FOR_EACH_ROLE_START(role) \
71509 + role = polstate->role_list; \
71510 + while (role) {
71511 +
71512 +#define FOR_EACH_ROLE_END(role) \
71513 + role = role->prev; \
71514 + }
71515 +
71516 +struct path gr_real_root;
71517 +
71518 +extern struct gr_alloc_state *current_alloc_state;
71519 +
71520 +u16 acl_sp_role_value;
71521 +
71522 +static DEFINE_MUTEX(gr_dev_mutex);
71523 +
71524 +extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
71525 +extern void gr_clear_learn_entries(void);
71526 +
71527 +static struct gr_arg gr_usermode;
71528 +static unsigned char gr_system_salt[GR_SALT_LEN];
71529 +static unsigned char gr_system_sum[GR_SHA_LEN];
71530 +
71531 +static unsigned int gr_auth_attempts = 0;
71532 +static unsigned long gr_auth_expires = 0UL;
71533 +
71534 +struct acl_object_label *fakefs_obj_rw;
71535 +struct acl_object_label *fakefs_obj_rwx;
71536 +
71537 +extern int gr_init_uidset(void);
71538 +extern void gr_free_uidset(void);
71539 +extern void gr_remove_uid(uid_t uid);
71540 +extern int gr_find_uid(uid_t uid);
71541 +
71542 +extern struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename);
71543 +extern void __gr_apply_subject_to_task(struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj);
71544 +extern int gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb);
71545 +extern void __insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry);
71546 +extern struct acl_role_label *__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid, const gid_t gid);
71547 +extern void insert_acl_obj_label(struct acl_object_label *obj, struct acl_subject_label *subj);
71548 +extern void insert_acl_subj_label(struct acl_subject_label *obj, struct acl_role_label *role);
71549 +extern struct name_entry * __lookup_name_entry(const struct gr_policy_state *state, const char *name);
71550 +extern char *gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt);
71551 +extern struct acl_subject_label *lookup_acl_subj_label(const ino_t ino, const dev_t dev, const struct acl_role_label *role);
71552 +extern struct acl_subject_label *lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev, const struct acl_role_label *role);
71553 +extern void assign_special_role(const char *rolename);
71554 +extern struct acl_subject_label *chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, const struct acl_role_label *role);
71555 +extern int gr_rbac_disable(void *unused);
71556 +extern void gr_enable_rbac_system(void);
71557 +
71558 +static int copy_acl_object_label_normal(struct acl_object_label *obj, const struct acl_object_label *userp)
71559 +{
71560 + if (copy_from_user(obj, userp, sizeof(struct acl_object_label)))
71561 + return -EFAULT;
71562 +
71563 + return 0;
71564 +}
71565 +
71566 +static int copy_acl_ip_label_normal(struct acl_ip_label *ip, const struct acl_ip_label *userp)
71567 +{
71568 + if (copy_from_user(ip, userp, sizeof(struct acl_ip_label)))
71569 + return -EFAULT;
71570 +
71571 + return 0;
71572 +}
71573 +
71574 +static int copy_acl_subject_label_normal(struct acl_subject_label *subj, const struct acl_subject_label *userp)
71575 +{
71576 + if (copy_from_user(subj, userp, sizeof(struct acl_subject_label)))
71577 + return -EFAULT;
71578 +
71579 + return 0;
71580 +}
71581 +
71582 +static int copy_acl_role_label_normal(struct acl_role_label *role, const struct acl_role_label *userp)
71583 +{
71584 + if (copy_from_user(role, userp, sizeof(struct acl_role_label)))
71585 + return -EFAULT;
71586 +
71587 + return 0;
71588 +}
71589 +
71590 +static int copy_role_allowed_ip_normal(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
71591 +{
71592 + if (copy_from_user(roleip, userp, sizeof(struct role_allowed_ip)))
71593 + return -EFAULT;
71594 +
71595 + return 0;
71596 +}
71597 +
71598 +static int copy_sprole_pw_normal(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
71599 +{
71600 + if (copy_from_user(pw, userp + idx, sizeof(struct sprole_pw)))
71601 + return -EFAULT;
71602 +
71603 + return 0;
71604 +}
71605 +
71606 +static int copy_gr_hash_struct_normal(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
71607 +{
71608 + if (copy_from_user(hash, userp, sizeof(struct gr_hash_struct)))
71609 + return -EFAULT;
71610 +
71611 + return 0;
71612 +}
71613 +
71614 +static int copy_role_transition_normal(struct role_transition *trans, const struct role_transition *userp)
71615 +{
71616 + if (copy_from_user(trans, userp, sizeof(struct role_transition)))
71617 + return -EFAULT;
71618 +
71619 + return 0;
71620 +}
71621 +
71622 +int copy_pointer_from_array_normal(void *ptr, unsigned long idx, const void *userp)
71623 +{
71624 + if (copy_from_user(ptr, userp + (idx * sizeof(void *)), sizeof(void *)))
71625 + return -EFAULT;
71626 +
71627 + return 0;
71628 +}
71629 +
71630 +static int copy_gr_arg_wrapper_normal(const char __user *buf, struct gr_arg_wrapper *uwrap)
71631 +{
71632 + if (copy_from_user(uwrap, buf, sizeof (struct gr_arg_wrapper)))
71633 + return -EFAULT;
71634 +
71635 + if (((uwrap->version != GRSECURITY_VERSION) &&
71636 + (uwrap->version != 0x2901)) ||
71637 + (uwrap->size != sizeof(struct gr_arg)))
71638 + return -EINVAL;
71639 +
71640 + return 0;
71641 +}
71642 +
71643 +static int copy_gr_arg_normal(const struct gr_arg __user *buf, struct gr_arg *arg)
71644 +{
71645 + if (copy_from_user(arg, buf, sizeof (struct gr_arg)))
71646 + return -EFAULT;
71647 +
71648 + return 0;
71649 +}
71650 +
71651 +static size_t get_gr_arg_wrapper_size_normal(void)
71652 +{
71653 + return sizeof(struct gr_arg_wrapper);
71654 +}
71655 +
71656 +#ifdef CONFIG_COMPAT
71657 +extern int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap);
71658 +extern int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg);
71659 +extern int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp);
71660 +extern int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp);
71661 +extern int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp);
71662 +extern int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp);
71663 +extern int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp);
71664 +extern int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp);
71665 +extern int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp);
71666 +extern int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp);
71667 +extern int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp);
71668 +extern size_t get_gr_arg_wrapper_size_compat(void);
71669 +
71670 +int (* copy_gr_arg_wrapper)(const char *buf, struct gr_arg_wrapper *uwrap) __read_only;
71671 +int (* copy_gr_arg)(const struct gr_arg *buf, struct gr_arg *arg) __read_only;
71672 +int (* copy_acl_object_label)(struct acl_object_label *obj, const struct acl_object_label *userp) __read_only;
71673 +int (* copy_acl_subject_label)(struct acl_subject_label *subj, const struct acl_subject_label *userp) __read_only;
71674 +int (* copy_acl_role_label)(struct acl_role_label *role, const struct acl_role_label *userp) __read_only;
71675 +int (* copy_acl_ip_label)(struct acl_ip_label *ip, const struct acl_ip_label *userp) __read_only;
71676 +int (* copy_pointer_from_array)(void *ptr, unsigned long idx, const void *userp) __read_only;
71677 +int (* copy_sprole_pw)(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp) __read_only;
71678 +int (* copy_gr_hash_struct)(struct gr_hash_struct *hash, const struct gr_hash_struct *userp) __read_only;
71679 +int (* copy_role_transition)(struct role_transition *trans, const struct role_transition *userp) __read_only;
71680 +int (* copy_role_allowed_ip)(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp) __read_only;
71681 +size_t (* get_gr_arg_wrapper_size)(void) __read_only;
71682 +
71683 +#else
71684 +#define copy_gr_arg_wrapper copy_gr_arg_wrapper_normal
71685 +#define copy_gr_arg copy_gr_arg_normal
71686 +#define copy_gr_hash_struct copy_gr_hash_struct_normal
71687 +#define copy_acl_object_label copy_acl_object_label_normal
71688 +#define copy_acl_subject_label copy_acl_subject_label_normal
71689 +#define copy_acl_role_label copy_acl_role_label_normal
71690 +#define copy_acl_ip_label copy_acl_ip_label_normal
71691 +#define copy_pointer_from_array copy_pointer_from_array_normal
71692 +#define copy_sprole_pw copy_sprole_pw_normal
71693 +#define copy_role_transition copy_role_transition_normal
71694 +#define copy_role_allowed_ip copy_role_allowed_ip_normal
71695 +#define get_gr_arg_wrapper_size get_gr_arg_wrapper_size_normal
71696 +#endif
71697 +
71698 +static struct acl_subject_label *
71699 +lookup_subject_map(const struct acl_subject_label *userp)
71700 +{
71701 + unsigned int index = gr_shash(userp, polstate->subj_map_set.s_size);
71702 + struct subject_map *match;
71703 +
71704 + match = polstate->subj_map_set.s_hash[index];
71705 +
71706 + while (match && match->user != userp)
71707 + match = match->next;
71708 +
71709 + if (match != NULL)
71710 + return match->kernel;
71711 + else
71712 + return NULL;
71713 +}
71714 +
71715 +static void
71716 +insert_subj_map_entry(struct subject_map *subjmap)
71717 +{
71718 + unsigned int index = gr_shash(subjmap->user, polstate->subj_map_set.s_size);
71719 + struct subject_map **curr;
71720 +
71721 + subjmap->prev = NULL;
71722 +
71723 + curr = &polstate->subj_map_set.s_hash[index];
71724 + if (*curr != NULL)
71725 + (*curr)->prev = subjmap;
71726 +
71727 + subjmap->next = *curr;
71728 + *curr = subjmap;
71729 +
71730 + return;
71731 +}
71732 +
71733 +static void
71734 +__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
71735 +{
71736 + unsigned int index =
71737 + gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), polstate->acl_role_set.r_size);
71738 + struct acl_role_label **curr;
71739 + struct acl_role_label *tmp, *tmp2;
71740 +
71741 + curr = &polstate->acl_role_set.r_hash[index];
71742 +
71743 + /* simple case, slot is empty, just set it to our role */
71744 + if (*curr == NULL) {
71745 + *curr = role;
71746 + } else {
71747 + /* example:
71748 + 1 -> 2 -> 3 (adding 2 -> 3 to here)
71749 + 2 -> 3
71750 + */
71751 + /* first check to see if we can already be reached via this slot */
71752 + tmp = *curr;
71753 + while (tmp && tmp != role)
71754 + tmp = tmp->next;
71755 + if (tmp == role) {
71756 + /* we don't need to add ourselves to this slot's chain */
71757 + return;
71758 + }
71759 + /* we need to add ourselves to this chain, two cases */
71760 + if (role->next == NULL) {
71761 + /* simple case, append the current chain to our role */
71762 + role->next = *curr;
71763 + *curr = role;
71764 + } else {
71765 + /* 1 -> 2 -> 3 -> 4
71766 + 2 -> 3 -> 4
71767 + 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
71768 + */
71769 + /* trickier case: walk our role's chain until we find
71770 + the role for the start of the current slot's chain */
71771 + tmp = role;
71772 + tmp2 = *curr;
71773 + while (tmp->next && tmp->next != tmp2)
71774 + tmp = tmp->next;
71775 + if (tmp->next == tmp2) {
71776 + /* from example above, we found 3, so just
71777 + replace this slot's chain with ours */
71778 + *curr = role;
71779 + } else {
71780 + /* we didn't find a subset of our role's chain
71781 + in the current slot's chain, so append their
71782 + chain to ours, and set us as the first role in
71783 + the slot's chain
71784 +
71785 + we could fold this case with the case above,
71786 + but making it explicit for clarity
71787 + */
71788 + tmp->next = tmp2;
71789 + *curr = role;
71790 + }
71791 + }
71792 + }
71793 +
71794 + return;
71795 +}
71796 +
71797 +static void
71798 +insert_acl_role_label(struct acl_role_label *role)
71799 +{
71800 + int i;
71801 +
71802 + if (polstate->role_list == NULL) {
71803 + polstate->role_list = role;
71804 + role->prev = NULL;
71805 + } else {
71806 + role->prev = polstate->role_list;
71807 + polstate->role_list = role;
71808 + }
71809 +
71810 + /* used for hash chains */
71811 + role->next = NULL;
71812 +
71813 + if (role->roletype & GR_ROLE_DOMAIN) {
71814 + for (i = 0; i < role->domain_child_num; i++)
71815 + __insert_acl_role_label(role, role->domain_children[i]);
71816 + } else
71817 + __insert_acl_role_label(role, role->uidgid);
71818 +}
71819 +
71820 +static int
71821 +insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted)
71822 +{
71823 + struct name_entry **curr, *nentry;
71824 + struct inodev_entry *ientry;
71825 + unsigned int len = strlen(name);
71826 + unsigned int key = full_name_hash(name, len);
71827 + unsigned int index = key % polstate->name_set.n_size;
71828 +
71829 + curr = &polstate->name_set.n_hash[index];
71830 +
71831 + while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
71832 + curr = &((*curr)->next);
71833 +
71834 + if (*curr != NULL)
71835 + return 1;
71836 +
71837 + nentry = acl_alloc(sizeof (struct name_entry));
71838 + if (nentry == NULL)
71839 + return 0;
71840 + ientry = acl_alloc(sizeof (struct inodev_entry));
71841 + if (ientry == NULL)
71842 + return 0;
71843 + ientry->nentry = nentry;
71844 +
71845 + nentry->key = key;
71846 + nentry->name = name;
71847 + nentry->inode = inode;
71848 + nentry->device = device;
71849 + nentry->len = len;
71850 + nentry->deleted = deleted;
71851 +
71852 + nentry->prev = NULL;
71853 + curr = &polstate->name_set.n_hash[index];
71854 + if (*curr != NULL)
71855 + (*curr)->prev = nentry;
71856 + nentry->next = *curr;
71857 + *curr = nentry;
71858 +
71859 + /* insert us into the table searchable by inode/dev */
71860 + __insert_inodev_entry(polstate, ientry);
71861 +
71862 + return 1;
71863 +}
71864 +
71865 +/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
71866 +
71867 +static void *
71868 +create_table(__u32 * len, int elementsize)
71869 +{
71870 + unsigned int table_sizes[] = {
71871 + 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
71872 + 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
71873 + 4194301, 8388593, 16777213, 33554393, 67108859
71874 + };
71875 + void *newtable = NULL;
71876 + unsigned int pwr = 0;
71877 +
71878 + while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
71879 + table_sizes[pwr] <= *len)
71880 + pwr++;
71881 +
71882 + if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
71883 + return newtable;
71884 +
71885 + if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
71886 + newtable =
71887 + kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
71888 + else
71889 + newtable = vmalloc(table_sizes[pwr] * elementsize);
71890 +
71891 + *len = table_sizes[pwr];
71892 +
71893 + return newtable;
71894 +}
71895 +
71896 +static int
71897 +init_variables(const struct gr_arg *arg, bool reload)
71898 +{
71899 + struct task_struct *reaper = init_pid_ns.child_reaper;
71900 + unsigned int stacksize;
71901 +
71902 + polstate->subj_map_set.s_size = arg->role_db.num_subjects;
71903 + polstate->acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
71904 + polstate->name_set.n_size = arg->role_db.num_objects;
71905 + polstate->inodev_set.i_size = arg->role_db.num_objects;
71906 +
71907 + if (!polstate->subj_map_set.s_size || !polstate->acl_role_set.r_size ||
71908 + !polstate->name_set.n_size || !polstate->inodev_set.i_size)
71909 + return 1;
71910 +
71911 + if (!reload) {
71912 + if (!gr_init_uidset())
71913 + return 1;
71914 + }
71915 +
71916 + /* set up the stack that holds allocation info */
71917 +
71918 + stacksize = arg->role_db.num_pointers + 5;
71919 +
71920 + if (!acl_alloc_stack_init(stacksize))
71921 + return 1;
71922 +
71923 + if (!reload) {
71924 + /* grab reference for the real root dentry and vfsmount */
71925 + get_fs_root(reaper->fs, &gr_real_root);
71926 +
71927 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
71928 + printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(gr_real_root.dentry), gr_real_root.dentry->d_inode->i_ino);
71929 +#endif
71930 +
71931 + fakefs_obj_rw = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
71932 + if (fakefs_obj_rw == NULL)
71933 + return 1;
71934 + fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
71935 +
71936 + fakefs_obj_rwx = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
71937 + if (fakefs_obj_rwx == NULL)
71938 + return 1;
71939 + fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
71940 + }
71941 +
71942 + polstate->subj_map_set.s_hash =
71943 + (struct subject_map **) create_table(&polstate->subj_map_set.s_size, sizeof(void *));
71944 + polstate->acl_role_set.r_hash =
71945 + (struct acl_role_label **) create_table(&polstate->acl_role_set.r_size, sizeof(void *));
71946 + polstate->name_set.n_hash = (struct name_entry **) create_table(&polstate->name_set.n_size, sizeof(void *));
71947 + polstate->inodev_set.i_hash =
71948 + (struct inodev_entry **) create_table(&polstate->inodev_set.i_size, sizeof(void *));
71949 +
71950 + if (!polstate->subj_map_set.s_hash || !polstate->acl_role_set.r_hash ||
71951 + !polstate->name_set.n_hash || !polstate->inodev_set.i_hash)
71952 + return 1;
71953 +
71954 + memset(polstate->subj_map_set.s_hash, 0,
71955 + sizeof(struct subject_map *) * polstate->subj_map_set.s_size);
71956 + memset(polstate->acl_role_set.r_hash, 0,
71957 + sizeof (struct acl_role_label *) * polstate->acl_role_set.r_size);
71958 + memset(polstate->name_set.n_hash, 0,
71959 + sizeof (struct name_entry *) * polstate->name_set.n_size);
71960 + memset(polstate->inodev_set.i_hash, 0,
71961 + sizeof (struct inodev_entry *) * polstate->inodev_set.i_size);
71962 +
71963 + return 0;
71964 +}
71965 +
71966 +/* free information not needed after startup
71967 + currently contains user->kernel pointer mappings for subjects
71968 +*/
71969 +
71970 +static void
71971 +free_init_variables(void)
71972 +{
71973 + __u32 i;
71974 +
71975 + if (polstate->subj_map_set.s_hash) {
71976 + for (i = 0; i < polstate->subj_map_set.s_size; i++) {
71977 + if (polstate->subj_map_set.s_hash[i]) {
71978 + kfree(polstate->subj_map_set.s_hash[i]);
71979 + polstate->subj_map_set.s_hash[i] = NULL;
71980 + }
71981 + }
71982 +
71983 + if ((polstate->subj_map_set.s_size * sizeof (struct subject_map *)) <=
71984 + PAGE_SIZE)
71985 + kfree(polstate->subj_map_set.s_hash);
71986 + else
71987 + vfree(polstate->subj_map_set.s_hash);
71988 + }
71989 +
71990 + return;
71991 +}
71992 +
71993 +static void
71994 +free_variables(bool reload)
71995 +{
71996 + struct acl_subject_label *s;
71997 + struct acl_role_label *r;
71998 + struct task_struct *task, *task2;
71999 + unsigned int x;
72000 +
72001 + if (!reload) {
72002 + gr_clear_learn_entries();
72003 +
72004 + read_lock(&tasklist_lock);
72005 + do_each_thread(task2, task) {
72006 + task->acl_sp_role = 0;
72007 + task->acl_role_id = 0;
72008 + task->inherited = 0;
72009 + task->acl = NULL;
72010 + task->role = NULL;
72011 + } while_each_thread(task2, task);
72012 + read_unlock(&tasklist_lock);
72013 +
72014 + kfree(fakefs_obj_rw);
72015 + fakefs_obj_rw = NULL;
72016 + kfree(fakefs_obj_rwx);
72017 + fakefs_obj_rwx = NULL;
72018 +
72019 + /* release the reference to the real root dentry and vfsmount */
72020 + path_put(&gr_real_root);
72021 + memset(&gr_real_root, 0, sizeof(gr_real_root));
72022 + }
72023 +
72024 + /* free all object hash tables */
72025 +
72026 + FOR_EACH_ROLE_START(r)
72027 + if (r->subj_hash == NULL)
72028 + goto next_role;
72029 + FOR_EACH_SUBJECT_START(r, s, x)
72030 + if (s->obj_hash == NULL)
72031 + break;
72032 + if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
72033 + kfree(s->obj_hash);
72034 + else
72035 + vfree(s->obj_hash);
72036 + FOR_EACH_SUBJECT_END(s, x)
72037 + FOR_EACH_NESTED_SUBJECT_START(r, s)
72038 + if (s->obj_hash == NULL)
72039 + break;
72040 + if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
72041 + kfree(s->obj_hash);
72042 + else
72043 + vfree(s->obj_hash);
72044 + FOR_EACH_NESTED_SUBJECT_END(s)
72045 + if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
72046 + kfree(r->subj_hash);
72047 + else
72048 + vfree(r->subj_hash);
72049 + r->subj_hash = NULL;
72050 +next_role:
72051 + FOR_EACH_ROLE_END(r)
72052 +
72053 + acl_free_all();
72054 +
72055 + if (polstate->acl_role_set.r_hash) {
72056 + if ((polstate->acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
72057 + PAGE_SIZE)
72058 + kfree(polstate->acl_role_set.r_hash);
72059 + else
72060 + vfree(polstate->acl_role_set.r_hash);
72061 + }
72062 + if (polstate->name_set.n_hash) {
72063 + if ((polstate->name_set.n_size * sizeof (struct name_entry *)) <=
72064 + PAGE_SIZE)
72065 + kfree(polstate->name_set.n_hash);
72066 + else
72067 + vfree(polstate->name_set.n_hash);
72068 + }
72069 +
72070 + if (polstate->inodev_set.i_hash) {
72071 + if ((polstate->inodev_set.i_size * sizeof (struct inodev_entry *)) <=
72072 + PAGE_SIZE)
72073 + kfree(polstate->inodev_set.i_hash);
72074 + else
72075 + vfree(polstate->inodev_set.i_hash);
72076 + }
72077 +
72078 + if (!reload)
72079 + gr_free_uidset();
72080 +
72081 + memset(&polstate->name_set, 0, sizeof (struct name_db));
72082 + memset(&polstate->inodev_set, 0, sizeof (struct inodev_db));
72083 + memset(&polstate->acl_role_set, 0, sizeof (struct acl_role_db));
72084 + memset(&polstate->subj_map_set, 0, sizeof (struct acl_subj_map_db));
72085 +
72086 + polstate->default_role = NULL;
72087 + polstate->kernel_role = NULL;
72088 + polstate->role_list = NULL;
72089 +
72090 + return;
72091 +}
72092 +
72093 +static struct acl_subject_label *
72094 +do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
72095 +
72096 +static int alloc_and_copy_string(char **name, unsigned int maxlen)
72097 +{
72098 + unsigned int len = strnlen_user(*name, maxlen);
72099 + char *tmp;
72100 +
72101 + if (!len || len >= maxlen)
72102 + return -EINVAL;
72103 +
72104 + if ((tmp = (char *) acl_alloc(len)) == NULL)
72105 + return -ENOMEM;
72106 +
72107 + if (copy_from_user(tmp, *name, len))
72108 + return -EFAULT;
72109 +
72110 + tmp[len-1] = '\0';
72111 + *name = tmp;
72112 +
72113 + return 0;
72114 +}
72115 +
72116 +static int
72117 +copy_user_glob(struct acl_object_label *obj)
72118 +{
72119 + struct acl_object_label *g_tmp, **guser;
72120 + int error;
72121 +
72122 + if (obj->globbed == NULL)
72123 + return 0;
72124 +
72125 + guser = &obj->globbed;
72126 + while (*guser) {
72127 + g_tmp = (struct acl_object_label *)
72128 + acl_alloc(sizeof (struct acl_object_label));
72129 + if (g_tmp == NULL)
72130 + return -ENOMEM;
72131 +
72132 + if (copy_acl_object_label(g_tmp, *guser))
72133 + return -EFAULT;
72134 +
72135 + error = alloc_and_copy_string(&g_tmp->filename, PATH_MAX);
72136 + if (error)
72137 + return error;
72138 +
72139 + *guser = g_tmp;
72140 + guser = &(g_tmp->next);
72141 + }
72142 +
72143 + return 0;
72144 +}
72145 +
72146 +static int
72147 +copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
72148 + struct acl_role_label *role)
72149 +{
72150 + struct acl_object_label *o_tmp;
72151 + int ret;
72152 +
72153 + while (userp) {
72154 + if ((o_tmp = (struct acl_object_label *)
72155 + acl_alloc(sizeof (struct acl_object_label))) == NULL)
72156 + return -ENOMEM;
72157 +
72158 + if (copy_acl_object_label(o_tmp, userp))
72159 + return -EFAULT;
72160 +
72161 + userp = o_tmp->prev;
72162 +
72163 + ret = alloc_and_copy_string(&o_tmp->filename, PATH_MAX);
72164 + if (ret)
72165 + return ret;
72166 +
72167 + insert_acl_obj_label(o_tmp, subj);
72168 + if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
72169 + o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
72170 + return -ENOMEM;
72171 +
72172 + ret = copy_user_glob(o_tmp);
72173 + if (ret)
72174 + return ret;
72175 +
72176 + if (o_tmp->nested) {
72177 + int already_copied;
72178 +
72179 + o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
72180 + if (IS_ERR(o_tmp->nested))
72181 + return PTR_ERR(o_tmp->nested);
72182 +
72183 + /* insert into nested subject list if we haven't copied this one yet
72184 + to prevent duplicate entries */
72185 + if (!already_copied) {
72186 + o_tmp->nested->next = role->hash->first;
72187 + role->hash->first = o_tmp->nested;
72188 + }
72189 + }
72190 + }
72191 +
72192 + return 0;
72193 +}
72194 +
72195 +static __u32
72196 +count_user_subjs(struct acl_subject_label *userp)
72197 +{
72198 + struct acl_subject_label s_tmp;
72199 + __u32 num = 0;
72200 +
72201 + while (userp) {
72202 + if (copy_acl_subject_label(&s_tmp, userp))
72203 + break;
72204 +
72205 + userp = s_tmp.prev;
72206 + }
72207 +
72208 + return num;
72209 +}
72210 +
72211 +static int
72212 +copy_user_allowedips(struct acl_role_label *rolep)
72213 +{
72214 + struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
72215 +
72216 + ruserip = rolep->allowed_ips;
72217 +
72218 + while (ruserip) {
72219 + rlast = rtmp;
72220 +
72221 + if ((rtmp = (struct role_allowed_ip *)
72222 + acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
72223 + return -ENOMEM;
72224 +
72225 + if (copy_role_allowed_ip(rtmp, ruserip))
72226 + return -EFAULT;
72227 +
72228 + ruserip = rtmp->prev;
72229 +
72230 + if (!rlast) {
72231 + rtmp->prev = NULL;
72232 + rolep->allowed_ips = rtmp;
72233 + } else {
72234 + rlast->next = rtmp;
72235 + rtmp->prev = rlast;
72236 + }
72237 +
72238 + if (!ruserip)
72239 + rtmp->next = NULL;
72240 + }
72241 +
72242 + return 0;
72243 +}
72244 +
72245 +static int
72246 +copy_user_transitions(struct acl_role_label *rolep)
72247 +{
72248 + struct role_transition *rusertp, *rtmp = NULL, *rlast;
72249 + int error;
72250 +
72251 + rusertp = rolep->transitions;
72252 +
72253 + while (rusertp) {
72254 + rlast = rtmp;
72255 +
72256 + if ((rtmp = (struct role_transition *)
72257 + acl_alloc(sizeof (struct role_transition))) == NULL)
72258 + return -ENOMEM;
72259 +
72260 + if (copy_role_transition(rtmp, rusertp))
72261 + return -EFAULT;
72262 +
72263 + rusertp = rtmp->prev;
72264 +
72265 + error = alloc_and_copy_string(&rtmp->rolename, GR_SPROLE_LEN);
72266 + if (error)
72267 + return error;
72268 +
72269 + if (!rlast) {
72270 + rtmp->prev = NULL;
72271 + rolep->transitions = rtmp;
72272 + } else {
72273 + rlast->next = rtmp;
72274 + rtmp->prev = rlast;
72275 + }
72276 +
72277 + if (!rusertp)
72278 + rtmp->next = NULL;
72279 + }
72280 +
72281 + return 0;
72282 +}
72283 +
72284 +static __u32 count_user_objs(const struct acl_object_label __user *userp)
72285 +{
72286 + struct acl_object_label o_tmp;
72287 + __u32 num = 0;
72288 +
72289 + while (userp) {
72290 + if (copy_acl_object_label(&o_tmp, userp))
72291 + break;
72292 +
72293 + userp = o_tmp.prev;
72294 + num++;
72295 + }
72296 +
72297 + return num;
72298 +}
72299 +
72300 +static struct acl_subject_label *
72301 +do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
72302 +{
72303 + struct acl_subject_label *s_tmp = NULL, *s_tmp2;
72304 + __u32 num_objs;
72305 + struct acl_ip_label **i_tmp, *i_utmp2;
72306 + struct gr_hash_struct ghash;
72307 + struct subject_map *subjmap;
72308 + unsigned int i_num;
72309 + int err;
72310 +
72311 + if (already_copied != NULL)
72312 + *already_copied = 0;
72313 +
72314 + s_tmp = lookup_subject_map(userp);
72315 +
72316 + /* we've already copied this subject into the kernel, just return
72317 + the reference to it, and don't copy it over again
72318 + */
72319 + if (s_tmp) {
72320 + if (already_copied != NULL)
72321 + *already_copied = 1;
72322 + return(s_tmp);
72323 + }
72324 +
72325 + if ((s_tmp = (struct acl_subject_label *)
72326 + acl_alloc(sizeof (struct acl_subject_label))) == NULL)
72327 + return ERR_PTR(-ENOMEM);
72328 +
72329 + subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
72330 + if (subjmap == NULL)
72331 + return ERR_PTR(-ENOMEM);
72332 +
72333 + subjmap->user = userp;
72334 + subjmap->kernel = s_tmp;
72335 + insert_subj_map_entry(subjmap);
72336 +
72337 + if (copy_acl_subject_label(s_tmp, userp))
72338 + return ERR_PTR(-EFAULT);
72339 +
72340 + err = alloc_and_copy_string(&s_tmp->filename, PATH_MAX);
72341 + if (err)
72342 + return ERR_PTR(err);
72343 +
72344 + if (!strcmp(s_tmp->filename, "/"))
72345 + role->root_label = s_tmp;
72346 +
72347 + if (copy_gr_hash_struct(&ghash, s_tmp->hash))
72348 + return ERR_PTR(-EFAULT);
72349 +
72350 + /* copy user and group transition tables */
72351 +
72352 + if (s_tmp->user_trans_num) {
72353 + uid_t *uidlist;
72354 +
72355 + uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
72356 + if (uidlist == NULL)
72357 + return ERR_PTR(-ENOMEM);
72358 + if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
72359 + return ERR_PTR(-EFAULT);
72360 +
72361 + s_tmp->user_transitions = uidlist;
72362 + }
72363 +
72364 + if (s_tmp->group_trans_num) {
72365 + gid_t *gidlist;
72366 +
72367 + gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
72368 + if (gidlist == NULL)
72369 + return ERR_PTR(-ENOMEM);
72370 + if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
72371 + return ERR_PTR(-EFAULT);
72372 +
72373 + s_tmp->group_transitions = gidlist;
72374 + }
72375 +
72376 + /* set up object hash table */
72377 + num_objs = count_user_objs(ghash.first);
72378 +
72379 + s_tmp->obj_hash_size = num_objs;
72380 + s_tmp->obj_hash =
72381 + (struct acl_object_label **)
72382 + create_table(&(s_tmp->obj_hash_size), sizeof(void *));
72383 +
72384 + if (!s_tmp->obj_hash)
72385 + return ERR_PTR(-ENOMEM);
72386 +
72387 + memset(s_tmp->obj_hash, 0,
72388 + s_tmp->obj_hash_size *
72389 + sizeof (struct acl_object_label *));
72390 +
72391 + /* add in objects */
72392 + err = copy_user_objs(ghash.first, s_tmp, role);
72393 +
72394 + if (err)
72395 + return ERR_PTR(err);
72396 +
72397 + /* set pointer for parent subject */
72398 + if (s_tmp->parent_subject) {
72399 + s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
72400 +
72401 + if (IS_ERR(s_tmp2))
72402 + return s_tmp2;
72403 +
72404 + s_tmp->parent_subject = s_tmp2;
72405 + }
72406 +
72407 + /* add in ip acls */
72408 +
72409 + if (!s_tmp->ip_num) {
72410 + s_tmp->ips = NULL;
72411 + goto insert;
72412 + }
72413 +
72414 + i_tmp =
72415 + (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
72416 + sizeof (struct acl_ip_label *));
72417 +
72418 + if (!i_tmp)
72419 + return ERR_PTR(-ENOMEM);
72420 +
72421 + for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
72422 + *(i_tmp + i_num) =
72423 + (struct acl_ip_label *)
72424 + acl_alloc(sizeof (struct acl_ip_label));
72425 + if (!*(i_tmp + i_num))
72426 + return ERR_PTR(-ENOMEM);
72427 +
72428 + if (copy_pointer_from_array(&i_utmp2, i_num, s_tmp->ips))
72429 + return ERR_PTR(-EFAULT);
72430 +
72431 + if (copy_acl_ip_label(*(i_tmp + i_num), i_utmp2))
72432 + return ERR_PTR(-EFAULT);
72433 +
72434 + if ((*(i_tmp + i_num))->iface == NULL)
72435 + continue;
72436 +
72437 + err = alloc_and_copy_string(&(*(i_tmp + i_num))->iface, IFNAMSIZ);
72438 + if (err)
72439 + return ERR_PTR(err);
72440 + }
72441 +
72442 + s_tmp->ips = i_tmp;
72443 +
72444 +insert:
72445 + if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
72446 + s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
72447 + return ERR_PTR(-ENOMEM);
72448 +
72449 + return s_tmp;
72450 +}
72451 +
72452 +static int
72453 +copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
72454 +{
72455 + struct acl_subject_label s_pre;
72456 + struct acl_subject_label * ret;
72457 + int err;
72458 +
72459 + while (userp) {
72460 + if (copy_acl_subject_label(&s_pre, userp))
72461 + return -EFAULT;
72462 +
72463 + ret = do_copy_user_subj(userp, role, NULL);
72464 +
72465 + err = PTR_ERR(ret);
72466 + if (IS_ERR(ret))
72467 + return err;
72468 +
72469 + insert_acl_subj_label(ret, role);
72470 +
72471 + userp = s_pre.prev;
72472 + }
72473 +
72474 + return 0;
72475 +}
72476 +
72477 +static int
72478 +copy_user_acl(struct gr_arg *arg)
72479 +{
72480 + struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
72481 + struct acl_subject_label *subj_list;
72482 + struct sprole_pw *sptmp;
72483 + struct gr_hash_struct *ghash;
72484 + uid_t *domainlist;
72485 + unsigned int r_num;
72486 + int err = 0;
72487 + __u16 i;
72488 + __u32 num_subjs;
72489 +
72490 + /* we need a default and kernel role */
72491 + if (arg->role_db.num_roles < 2)
72492 + return -EINVAL;
72493 +
72494 + /* copy special role authentication info from userspace */
72495 +
72496 + polstate->num_sprole_pws = arg->num_sprole_pws;
72497 + polstate->acl_special_roles = (struct sprole_pw **) acl_alloc_num(polstate->num_sprole_pws, sizeof(struct sprole_pw *));
72498 +
72499 + if (!polstate->acl_special_roles && polstate->num_sprole_pws)
72500 + return -ENOMEM;
72501 +
72502 + for (i = 0; i < polstate->num_sprole_pws; i++) {
72503 + sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
72504 + if (!sptmp)
72505 + return -ENOMEM;
72506 + if (copy_sprole_pw(sptmp, i, arg->sprole_pws))
72507 + return -EFAULT;
72508 +
72509 + err = alloc_and_copy_string((char **)&sptmp->rolename, GR_SPROLE_LEN);
72510 + if (err)
72511 + return err;
72512 +
72513 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
72514 + printk(KERN_ALERT "Copying special role %s\n", sptmp->rolename);
72515 +#endif
72516 +
72517 + polstate->acl_special_roles[i] = sptmp;
72518 + }
72519 +
72520 + r_utmp = (struct acl_role_label **) arg->role_db.r_table;
72521 +
72522 + for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
72523 + r_tmp = acl_alloc(sizeof (struct acl_role_label));
72524 +
72525 + if (!r_tmp)
72526 + return -ENOMEM;
72527 +
72528 + if (copy_pointer_from_array(&r_utmp2, r_num, r_utmp))
72529 + return -EFAULT;
72530 +
72531 + if (copy_acl_role_label(r_tmp, r_utmp2))
72532 + return -EFAULT;
72533 +
72534 + err = alloc_and_copy_string(&r_tmp->rolename, GR_SPROLE_LEN);
72535 + if (err)
72536 + return err;
72537 +
72538 + if (!strcmp(r_tmp->rolename, "default")
72539 + && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
72540 + polstate->default_role = r_tmp;
72541 + } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
72542 + polstate->kernel_role = r_tmp;
72543 + }
72544 +
72545 + if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
72546 + return -ENOMEM;
72547 +
72548 + if (copy_gr_hash_struct(ghash, r_tmp->hash))
72549 + return -EFAULT;
72550 +
72551 + r_tmp->hash = ghash;
72552 +
72553 + num_subjs = count_user_subjs(r_tmp->hash->first);
72554 +
72555 + r_tmp->subj_hash_size = num_subjs;
72556 + r_tmp->subj_hash =
72557 + (struct acl_subject_label **)
72558 + create_table(&(r_tmp->subj_hash_size), sizeof(void *));
72559 +
72560 + if (!r_tmp->subj_hash)
72561 + return -ENOMEM;
72562 +
72563 + err = copy_user_allowedips(r_tmp);
72564 + if (err)
72565 + return err;
72566 +
72567 + /* copy domain info */
72568 + if (r_tmp->domain_children != NULL) {
72569 + domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
72570 + if (domainlist == NULL)
72571 + return -ENOMEM;
72572 +
72573 + if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
72574 + return -EFAULT;
72575 +
72576 + r_tmp->domain_children = domainlist;
72577 + }
72578 +
72579 + err = copy_user_transitions(r_tmp);
72580 + if (err)
72581 + return err;
72582 +
72583 + memset(r_tmp->subj_hash, 0,
72584 + r_tmp->subj_hash_size *
72585 + sizeof (struct acl_subject_label *));
72586 +
72587 + /* acquire the list of subjects, then NULL out
72588 + the list prior to parsing the subjects for this role,
72589 + as during this parsing the list is replaced with a list
72590 + of *nested* subjects for the role
72591 + */
72592 + subj_list = r_tmp->hash->first;
72593 +
72594 + /* set nested subject list to null */
72595 + r_tmp->hash->first = NULL;
72596 +
72597 + err = copy_user_subjs(subj_list, r_tmp);
72598 +
72599 + if (err)
72600 + return err;
72601 +
72602 + insert_acl_role_label(r_tmp);
72603 + }
72604 +
72605 + if (polstate->default_role == NULL || polstate->kernel_role == NULL)
72606 + return -EINVAL;
72607 +
72608 + return err;
72609 +}
72610 +
72611 +static int gracl_reload_apply_policies(void *reload)
72612 +{
72613 + struct gr_reload_state *reload_state = (struct gr_reload_state *)reload;
72614 + struct task_struct *task, *task2;
72615 + struct acl_role_label *role, *rtmp;
72616 + struct acl_subject_label *subj;
72617 + const struct cred *cred;
72618 + int role_applied;
72619 + int ret = 0;
72620 +
72621 + memcpy(&reload_state->oldpolicy, reload_state->oldpolicy_ptr, sizeof(struct gr_policy_state));
72622 + memcpy(&reload_state->oldalloc, reload_state->oldalloc_ptr, sizeof(struct gr_alloc_state));
72623 +
72624 + /* first make sure we'll be able to apply the new policy cleanly */
72625 + do_each_thread(task2, task) {
72626 + if (task->exec_file == NULL)
72627 + continue;
72628 + role_applied = 0;
72629 + if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
72630 + /* preserve special roles */
72631 + FOR_EACH_ROLE_START(role)
72632 + if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
72633 + rtmp = task->role;
72634 + task->role = role;
72635 + role_applied = 1;
72636 + break;
72637 + }
72638 + FOR_EACH_ROLE_END(role)
72639 + }
72640 + if (!role_applied) {
72641 + cred = __task_cred(task);
72642 + rtmp = task->role;
72643 + task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
72644 + }
72645 + /* this handles non-nested inherited subjects, nested subjects will still
72646 + be dropped currently */
72647 + subj = __gr_get_subject_for_task(polstate, task, task->acl->filename);
72648 + task->tmpacl = __gr_get_subject_for_task(polstate, task, NULL);
72649 + /* change the role back so that we've made no modifications to the policy */
72650 + task->role = rtmp;
72651 +
72652 + if (subj == NULL || task->tmpacl == NULL) {
72653 + ret = -EINVAL;
72654 + goto out;
72655 + }
72656 + } while_each_thread(task2, task);
72657 +
72658 + /* now actually apply the policy */
72659 +
72660 + do_each_thread(task2, task) {
72661 + if (task->exec_file) {
72662 + role_applied = 0;
72663 + if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
72664 + /* preserve special roles */
72665 + FOR_EACH_ROLE_START(role)
72666 + if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
72667 + task->role = role;
72668 + role_applied = 1;
72669 + break;
72670 + }
72671 + FOR_EACH_ROLE_END(role)
72672 + }
72673 + if (!role_applied) {
72674 + cred = __task_cred(task);
72675 + task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
72676 + }
72677 + /* this handles non-nested inherited subjects, nested subjects will still
72678 + be dropped currently */
72679 + if (!reload_state->oldmode && task->inherited)
72680 + subj = __gr_get_subject_for_task(polstate, task, task->acl->filename);
72681 + else {
72682 + /* looked up and tagged to the task previously */
72683 + subj = task->tmpacl;
72684 + }
72685 + /* subj will be non-null */
72686 + __gr_apply_subject_to_task(polstate, task, subj);
72687 + if (reload_state->oldmode) {
72688 + task->acl_role_id = 0;
72689 + task->acl_sp_role = 0;
72690 + task->inherited = 0;
72691 + }
72692 + } else {
72693 + // it's a kernel process
72694 + task->role = polstate->kernel_role;
72695 + task->acl = polstate->kernel_role->root_label;
72696 +#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
72697 + task->acl->mode &= ~GR_PROCFIND;
72698 +#endif
72699 + }
72700 + } while_each_thread(task2, task);
72701 +
72702 + memcpy(reload_state->oldpolicy_ptr, &reload_state->newpolicy, sizeof(struct gr_policy_state));
72703 + memcpy(reload_state->oldalloc_ptr, &reload_state->newalloc, sizeof(struct gr_alloc_state));
72704 +
72705 +out:
72706 +
72707 + return ret;
72708 +}
72709 +
72710 +static int gracl_reload(struct gr_arg *args, unsigned char oldmode)
72711 +{
72712 + struct gr_reload_state new_reload_state = { };
72713 + int err;
72714 +
72715 + new_reload_state.oldpolicy_ptr = polstate;
72716 + new_reload_state.oldalloc_ptr = current_alloc_state;
72717 + new_reload_state.oldmode = oldmode;
72718 +
72719 + current_alloc_state = &new_reload_state.newalloc;
72720 + polstate = &new_reload_state.newpolicy;
72721 +
72722 + /* everything relevant is now saved off, copy in the new policy */
72723 + if (init_variables(args, true)) {
72724 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
72725 + err = -ENOMEM;
72726 + goto error;
72727 + }
72728 +
72729 + err = copy_user_acl(args);
72730 + free_init_variables();
72731 + if (err)
72732 + goto error;
72733 + /* the new policy is copied in, with the old policy available via saved_state
72734 + first go through applying roles, making sure to preserve special roles
72735 + then apply new subjects, making sure to preserve inherited and nested subjects,
72736 + though currently only inherited subjects will be preserved
72737 + */
72738 + err = stop_machine(gracl_reload_apply_policies, &new_reload_state, NULL);
72739 + if (err)
72740 + goto error;
72741 +
72742 + /* we've now applied the new policy, so restore the old policy state to free it */
72743 + polstate = &new_reload_state.oldpolicy;
72744 + current_alloc_state = &new_reload_state.oldalloc;
72745 + free_variables(true);
72746 +
72747 + /* oldpolicy/oldalloc_ptr point to the new policy/alloc states as they were copied
72748 + to running_polstate/current_alloc_state inside stop_machine
72749 + */
72750 + err = 0;
72751 + goto out;
72752 +error:
72753 + /* on error of loading the new policy, we'll just keep the previous
72754 + policy set around
72755 + */
72756 + free_variables(true);
72757 +
72758 + /* doesn't affect runtime, but maintains consistent state */
72759 +out:
72760 + polstate = new_reload_state.oldpolicy_ptr;
72761 + current_alloc_state = new_reload_state.oldalloc_ptr;
72762 +
72763 + return err;
72764 +}
72765 +
72766 +static int
72767 +gracl_init(struct gr_arg *args)
72768 +{
72769 + int error = 0;
72770 +
72771 + memcpy(&gr_system_salt, args->salt, sizeof(gr_system_salt));
72772 + memcpy(&gr_system_sum, args->sum, sizeof(gr_system_sum));
72773 +
72774 + if (init_variables(args, false)) {
72775 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
72776 + error = -ENOMEM;
72777 + goto out;
72778 + }
72779 +
72780 + error = copy_user_acl(args);
72781 + free_init_variables();
72782 + if (error)
72783 + goto out;
72784 +
72785 + error = gr_set_acls(0);
72786 + if (error)
72787 + goto out;
72788 +
72789 + gr_enable_rbac_system();
72790 +
72791 + return 0;
72792 +
72793 +out:
72794 + free_variables(false);
72795 + return error;
72796 +}
72797 +
72798 +static int
72799 +lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
72800 + unsigned char **sum)
72801 +{
72802 + struct acl_role_label *r;
72803 + struct role_allowed_ip *ipp;
72804 + struct role_transition *trans;
72805 + unsigned int i;
72806 + int found = 0;
72807 + u32 curr_ip = current->signal->curr_ip;
72808 +
72809 + current->signal->saved_ip = curr_ip;
72810 +
72811 + /* check transition table */
72812 +
72813 + for (trans = current->role->transitions; trans; trans = trans->next) {
72814 + if (!strcmp(rolename, trans->rolename)) {
72815 + found = 1;
72816 + break;
72817 + }
72818 + }
72819 +
72820 + if (!found)
72821 + return 0;
72822 +
72823 + /* handle special roles that do not require authentication
72824 + and check ip */
72825 +
72826 + FOR_EACH_ROLE_START(r)
72827 + if (!strcmp(rolename, r->rolename) &&
72828 + (r->roletype & GR_ROLE_SPECIAL)) {
72829 + found = 0;
72830 + if (r->allowed_ips != NULL) {
72831 + for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
72832 + if ((ntohl(curr_ip) & ipp->netmask) ==
72833 + (ntohl(ipp->addr) & ipp->netmask))
72834 + found = 1;
72835 + }
72836 + } else
72837 + found = 2;
72838 + if (!found)
72839 + return 0;
72840 +
72841 + if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
72842 + ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
72843 + *salt = NULL;
72844 + *sum = NULL;
72845 + return 1;
72846 + }
72847 + }
72848 + FOR_EACH_ROLE_END(r)
72849 +
72850 + for (i = 0; i < polstate->num_sprole_pws; i++) {
72851 + if (!strcmp(rolename, polstate->acl_special_roles[i]->rolename)) {
72852 + *salt = polstate->acl_special_roles[i]->salt;
72853 + *sum = polstate->acl_special_roles[i]->sum;
72854 + return 1;
72855 + }
72856 + }
72857 +
72858 + return 0;
72859 +}
72860 +
72861 +int gr_check_secure_terminal(struct task_struct *task)
72862 +{
72863 + struct task_struct *p, *p2, *p3;
72864 + struct files_struct *files;
72865 + struct fdtable *fdt;
72866 + struct file *our_file = NULL, *file;
72867 + int i;
72868 +
72869 + if (task->signal->tty == NULL)
72870 + return 1;
72871 +
72872 + files = get_files_struct(task);
72873 + if (files != NULL) {
72874 + rcu_read_lock();
72875 + fdt = files_fdtable(files);
72876 + for (i=0; i < fdt->max_fds; i++) {
72877 + file = fcheck_files(files, i);
72878 + if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
72879 + get_file(file);
72880 + our_file = file;
72881 + }
72882 + }
72883 + rcu_read_unlock();
72884 + put_files_struct(files);
72885 + }
72886 +
72887 + if (our_file == NULL)
72888 + return 1;
72889 +
72890 + read_lock(&tasklist_lock);
72891 + do_each_thread(p2, p) {
72892 + files = get_files_struct(p);
72893 + if (files == NULL ||
72894 + (p->signal && p->signal->tty == task->signal->tty)) {
72895 + if (files != NULL)
72896 + put_files_struct(files);
72897 + continue;
72898 + }
72899 + rcu_read_lock();
72900 + fdt = files_fdtable(files);
72901 + for (i=0; i < fdt->max_fds; i++) {
72902 + file = fcheck_files(files, i);
72903 + if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
72904 + file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
72905 + p3 = task;
72906 + while (task_pid_nr(p3) > 0) {
72907 + if (p3 == p)
72908 + break;
72909 + p3 = p3->real_parent;
72910 + }
72911 + if (p3 == p)
72912 + break;
72913 + gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
72914 + gr_handle_alertkill(p);
72915 + rcu_read_unlock();
72916 + put_files_struct(files);
72917 + read_unlock(&tasklist_lock);
72918 + fput(our_file);
72919 + return 0;
72920 + }
72921 + }
72922 + rcu_read_unlock();
72923 + put_files_struct(files);
72924 + } while_each_thread(p2, p);
72925 + read_unlock(&tasklist_lock);
72926 +
72927 + fput(our_file);
72928 + return 1;
72929 +}
72930 +
72931 +ssize_t
72932 +write_grsec_handler(struct file *file, const char __user * buf, size_t count, loff_t *ppos)
72933 +{
72934 + struct gr_arg_wrapper uwrap;
72935 + unsigned char *sprole_salt = NULL;
72936 + unsigned char *sprole_sum = NULL;
72937 + int error = 0;
72938 + int error2 = 0;
72939 + size_t req_count = 0;
72940 + unsigned char oldmode = 0;
72941 +
72942 + mutex_lock(&gr_dev_mutex);
72943 +
72944 + if (gr_acl_is_enabled() && !(current->acl->mode & GR_KERNELAUTH)) {
72945 + error = -EPERM;
72946 + goto out;
72947 + }
72948 +
72949 +#ifdef CONFIG_COMPAT
72950 + pax_open_kernel();
72951 + if (is_compat_task()) {
72952 + copy_gr_arg_wrapper = &copy_gr_arg_wrapper_compat;
72953 + copy_gr_arg = &copy_gr_arg_compat;
72954 + copy_acl_object_label = &copy_acl_object_label_compat;
72955 + copy_acl_subject_label = &copy_acl_subject_label_compat;
72956 + copy_acl_role_label = &copy_acl_role_label_compat;
72957 + copy_acl_ip_label = &copy_acl_ip_label_compat;
72958 + copy_role_allowed_ip = &copy_role_allowed_ip_compat;
72959 + copy_role_transition = &copy_role_transition_compat;
72960 + copy_sprole_pw = &copy_sprole_pw_compat;
72961 + copy_gr_hash_struct = &copy_gr_hash_struct_compat;
72962 + copy_pointer_from_array = &copy_pointer_from_array_compat;
72963 + get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_compat;
72964 + } else {
72965 + copy_gr_arg_wrapper = &copy_gr_arg_wrapper_normal;
72966 + copy_gr_arg = &copy_gr_arg_normal;
72967 + copy_acl_object_label = &copy_acl_object_label_normal;
72968 + copy_acl_subject_label = &copy_acl_subject_label_normal;
72969 + copy_acl_role_label = &copy_acl_role_label_normal;
72970 + copy_acl_ip_label = &copy_acl_ip_label_normal;
72971 + copy_role_allowed_ip = &copy_role_allowed_ip_normal;
72972 + copy_role_transition = &copy_role_transition_normal;
72973 + copy_sprole_pw = &copy_sprole_pw_normal;
72974 + copy_gr_hash_struct = &copy_gr_hash_struct_normal;
72975 + copy_pointer_from_array = &copy_pointer_from_array_normal;
72976 + get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_normal;
72977 + }
72978 + pax_close_kernel();
72979 +#endif
72980 +
72981 + req_count = get_gr_arg_wrapper_size();
72982 +
72983 + if (count != req_count) {
72984 + gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)req_count);
72985 + error = -EINVAL;
72986 + goto out;
72987 + }
72988 +
72989 +
72990 + if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
72991 + gr_auth_expires = 0;
72992 + gr_auth_attempts = 0;
72993 + }
72994 +
72995 + error = copy_gr_arg_wrapper(buf, &uwrap);
72996 + if (error)
72997 + goto out;
72998 +
72999 + error = copy_gr_arg(uwrap.arg, &gr_usermode);
73000 + if (error)
73001 + goto out;
73002 +
73003 + if (gr_usermode.mode != GR_SPROLE && gr_usermode.mode != GR_SPROLEPAM &&
73004 + gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
73005 + time_after(gr_auth_expires, get_seconds())) {
73006 + error = -EBUSY;
73007 + goto out;
73008 + }
73009 +
73010 + /* if non-root trying to do anything other than use a special role,
73011 + do not attempt authentication, do not count towards authentication
73012 + locking
73013 + */
73014 +
73015 + if (gr_usermode.mode != GR_SPROLE && gr_usermode.mode != GR_STATUS &&
73016 + gr_usermode.mode != GR_UNSPROLE && gr_usermode.mode != GR_SPROLEPAM &&
73017 + gr_is_global_nonroot(current_uid())) {
73018 + error = -EPERM;
73019 + goto out;
73020 + }
73021 +
73022 + /* ensure pw and special role name are null terminated */
73023 +
73024 + gr_usermode.pw[GR_PW_LEN - 1] = '\0';
73025 + gr_usermode.sp_role[GR_SPROLE_LEN - 1] = '\0';
73026 +
73027 + /* Okay.
73028 + * We have our enough of the argument structure..(we have yet
73029 + * to copy_from_user the tables themselves) . Copy the tables
73030 + * only if we need them, i.e. for loading operations. */
73031 +
73032 + switch (gr_usermode.mode) {
73033 + case GR_STATUS:
73034 + if (gr_acl_is_enabled()) {
73035 + error = 1;
73036 + if (!gr_check_secure_terminal(current))
73037 + error = 3;
73038 + } else
73039 + error = 2;
73040 + goto out;
73041 + case GR_SHUTDOWN:
73042 + if (gr_acl_is_enabled() && !(chkpw(&gr_usermode, (unsigned char *)&gr_system_salt, (unsigned char *)&gr_system_sum))) {
73043 + stop_machine(gr_rbac_disable, NULL, NULL);
73044 + free_variables(false);
73045 + memset(&gr_usermode, 0, sizeof(gr_usermode));
73046 + memset(&gr_system_salt, 0, sizeof(gr_system_salt));
73047 + memset(&gr_system_sum, 0, sizeof(gr_system_sum));
73048 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
73049 + } else if (gr_acl_is_enabled()) {
73050 + gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
73051 + error = -EPERM;
73052 + } else {
73053 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
73054 + error = -EAGAIN;
73055 + }
73056 + break;
73057 + case GR_ENABLE:
73058 + if (!gr_acl_is_enabled() && !(error2 = gracl_init(&gr_usermode)))
73059 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
73060 + else {
73061 + if (gr_acl_is_enabled())
73062 + error = -EAGAIN;
73063 + else
73064 + error = error2;
73065 + gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
73066 + }
73067 + break;
73068 + case GR_OLDRELOAD:
73069 + oldmode = 1;
73070 + case GR_RELOAD:
73071 + if (!gr_acl_is_enabled()) {
73072 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
73073 + error = -EAGAIN;
73074 + } else if (!(chkpw(&gr_usermode, (unsigned char *)&gr_system_salt, (unsigned char *)&gr_system_sum))) {
73075 + error2 = gracl_reload(&gr_usermode, oldmode);
73076 + if (!error2)
73077 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
73078 + else {
73079 + gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
73080 + error = error2;
73081 + }
73082 + } else {
73083 + gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
73084 + error = -EPERM;
73085 + }
73086 + break;
73087 + case GR_SEGVMOD:
73088 + if (unlikely(!gr_acl_is_enabled())) {
73089 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
73090 + error = -EAGAIN;
73091 + break;
73092 + }
73093 +
73094 + if (!(chkpw(&gr_usermode, (unsigned char *)&gr_system_salt, (unsigned char *)&gr_system_sum))) {
73095 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
73096 + if (gr_usermode.segv_device && gr_usermode.segv_inode) {
73097 + struct acl_subject_label *segvacl;
73098 + segvacl =
73099 + lookup_acl_subj_label(gr_usermode.segv_inode,
73100 + gr_usermode.segv_device,
73101 + current->role);
73102 + if (segvacl) {
73103 + segvacl->crashes = 0;
73104 + segvacl->expires = 0;
73105 + }
73106 + } else if (gr_find_uid(gr_usermode.segv_uid) >= 0) {
73107 + gr_remove_uid(gr_usermode.segv_uid);
73108 + }
73109 + } else {
73110 + gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
73111 + error = -EPERM;
73112 + }
73113 + break;
73114 + case GR_SPROLE:
73115 + case GR_SPROLEPAM:
73116 + if (unlikely(!gr_acl_is_enabled())) {
73117 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
73118 + error = -EAGAIN;
73119 + break;
73120 + }
73121 +
73122 + if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
73123 + current->role->expires = 0;
73124 + current->role->auth_attempts = 0;
73125 + }
73126 +
73127 + if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
73128 + time_after(current->role->expires, get_seconds())) {
73129 + error = -EBUSY;
73130 + goto out;
73131 + }
73132 +
73133 + if (lookup_special_role_auth
73134 + (gr_usermode.mode, gr_usermode.sp_role, &sprole_salt, &sprole_sum)
73135 + && ((!sprole_salt && !sprole_sum)
73136 + || !(chkpw(&gr_usermode, sprole_salt, sprole_sum)))) {
73137 + char *p = "";
73138 + assign_special_role(gr_usermode.sp_role);
73139 + read_lock(&tasklist_lock);
73140 + if (current->real_parent)
73141 + p = current->real_parent->role->rolename;
73142 + read_unlock(&tasklist_lock);
73143 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
73144 + p, acl_sp_role_value);
73145 + } else {
73146 + gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode.sp_role);
73147 + error = -EPERM;
73148 + if(!(current->role->auth_attempts++))
73149 + current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
73150 +
73151 + goto out;
73152 + }
73153 + break;
73154 + case GR_UNSPROLE:
73155 + if (unlikely(!gr_acl_is_enabled())) {
73156 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
73157 + error = -EAGAIN;
73158 + break;
73159 + }
73160 +
73161 + if (current->role->roletype & GR_ROLE_SPECIAL) {
73162 + char *p = "";
73163 + int i = 0;
73164 +
73165 + read_lock(&tasklist_lock);
73166 + if (current->real_parent) {
73167 + p = current->real_parent->role->rolename;
73168 + i = current->real_parent->acl_role_id;
73169 + }
73170 + read_unlock(&tasklist_lock);
73171 +
73172 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
73173 + gr_set_acls(1);
73174 + } else {
73175 + error = -EPERM;
73176 + goto out;
73177 + }
73178 + break;
73179 + default:
73180 + gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode.mode);
73181 + error = -EINVAL;
73182 + break;
73183 + }
73184 +
73185 + if (error != -EPERM)
73186 + goto out;
73187 +
73188 + if(!(gr_auth_attempts++))
73189 + gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
73190 +
73191 + out:
73192 + mutex_unlock(&gr_dev_mutex);
73193 +
73194 + if (!error)
73195 + error = req_count;
73196 +
73197 + return error;
73198 +}
73199 +
73200 +int
73201 +gr_set_acls(const int type)
73202 +{
73203 + struct task_struct *task, *task2;
73204 + struct acl_role_label *role = current->role;
73205 + struct acl_subject_label *subj;
73206 + __u16 acl_role_id = current->acl_role_id;
73207 + const struct cred *cred;
73208 + int ret;
73209 +
73210 + rcu_read_lock();
73211 + read_lock(&tasklist_lock);
73212 + read_lock(&grsec_exec_file_lock);
73213 + do_each_thread(task2, task) {
73214 + /* check to see if we're called from the exit handler,
73215 + if so, only replace ACLs that have inherited the admin
73216 + ACL */
73217 +
73218 + if (type && (task->role != role ||
73219 + task->acl_role_id != acl_role_id))
73220 + continue;
73221 +
73222 + task->acl_role_id = 0;
73223 + task->acl_sp_role = 0;
73224 + task->inherited = 0;
73225 +
73226 + if (task->exec_file) {
73227 + cred = __task_cred(task);
73228 + task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
73229 + subj = __gr_get_subject_for_task(polstate, task, NULL);
73230 + if (subj == NULL) {
73231 + ret = -EINVAL;
73232 + read_unlock(&grsec_exec_file_lock);
73233 + read_unlock(&tasklist_lock);
73234 + rcu_read_unlock();
73235 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
73236 + return ret;
73237 + }
73238 + __gr_apply_subject_to_task(polstate, task, subj);
73239 + } else {
73240 + // it's a kernel process
73241 + task->role = polstate->kernel_role;
73242 + task->acl = polstate->kernel_role->root_label;
73243 +#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
73244 + task->acl->mode &= ~GR_PROCFIND;
73245 +#endif
73246 + }
73247 + } while_each_thread(task2, task);
73248 + read_unlock(&grsec_exec_file_lock);
73249 + read_unlock(&tasklist_lock);
73250 + rcu_read_unlock();
73251 +
73252 + return 0;
73253 +}
73254 diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
73255 new file mode 100644
73256 index 0000000..39645c9
73257 --- /dev/null
73258 +++ b/grsecurity/gracl_res.c
73259 @@ -0,0 +1,68 @@
73260 +#include <linux/kernel.h>
73261 +#include <linux/sched.h>
73262 +#include <linux/gracl.h>
73263 +#include <linux/grinternal.h>
73264 +
73265 +static const char *restab_log[] = {
73266 + [RLIMIT_CPU] = "RLIMIT_CPU",
73267 + [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
73268 + [RLIMIT_DATA] = "RLIMIT_DATA",
73269 + [RLIMIT_STACK] = "RLIMIT_STACK",
73270 + [RLIMIT_CORE] = "RLIMIT_CORE",
73271 + [RLIMIT_RSS] = "RLIMIT_RSS",
73272 + [RLIMIT_NPROC] = "RLIMIT_NPROC",
73273 + [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
73274 + [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
73275 + [RLIMIT_AS] = "RLIMIT_AS",
73276 + [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
73277 + [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
73278 + [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
73279 + [RLIMIT_NICE] = "RLIMIT_NICE",
73280 + [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
73281 + [RLIMIT_RTTIME] = "RLIMIT_RTTIME",
73282 + [GR_CRASH_RES] = "RLIMIT_CRASH"
73283 +};
73284 +
73285 +void
73286 +gr_log_resource(const struct task_struct *task,
73287 + const int res, const unsigned long wanted, const int gt)
73288 +{
73289 + const struct cred *cred;
73290 + unsigned long rlim;
73291 +
73292 + if (!gr_acl_is_enabled() && !grsec_resource_logging)
73293 + return;
73294 +
73295 + // not yet supported resource
73296 + if (unlikely(!restab_log[res]))
73297 + return;
73298 +
73299 + if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
73300 + rlim = task_rlimit_max(task, res);
73301 + else
73302 + rlim = task_rlimit(task, res);
73303 +
73304 + if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
73305 + return;
73306 +
73307 + rcu_read_lock();
73308 + cred = __task_cred(task);
73309 +
73310 + if (res == RLIMIT_NPROC &&
73311 + (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) ||
73312 + cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
73313 + goto out_rcu_unlock;
73314 + else if (res == RLIMIT_MEMLOCK &&
73315 + cap_raised(cred->cap_effective, CAP_IPC_LOCK))
73316 + goto out_rcu_unlock;
73317 + else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
73318 + goto out_rcu_unlock;
73319 + rcu_read_unlock();
73320 +
73321 + gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
73322 +
73323 + return;
73324 +out_rcu_unlock:
73325 + rcu_read_unlock();
73326 + return;
73327 +}
73328 diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
73329 new file mode 100644
73330 index 0000000..2040e61
73331 --- /dev/null
73332 +++ b/grsecurity/gracl_segv.c
73333 @@ -0,0 +1,313 @@
73334 +#include <linux/kernel.h>
73335 +#include <linux/mm.h>
73336 +#include <asm/uaccess.h>
73337 +#include <asm/errno.h>
73338 +#include <asm/mman.h>
73339 +#include <net/sock.h>
73340 +#include <linux/file.h>
73341 +#include <linux/fs.h>
73342 +#include <linux/net.h>
73343 +#include <linux/in.h>
73344 +#include <linux/slab.h>
73345 +#include <linux/types.h>
73346 +#include <linux/sched.h>
73347 +#include <linux/timer.h>
73348 +#include <linux/gracl.h>
73349 +#include <linux/grsecurity.h>
73350 +#include <linux/grinternal.h>
73351 +#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
73352 +#include <linux/magic.h>
73353 +#include <linux/pagemap.h>
73354 +#include "../fs/btrfs/async-thread.h"
73355 +#include "../fs/btrfs/ctree.h"
73356 +#include "../fs/btrfs/btrfs_inode.h"
73357 +#endif
73358 +
73359 +static struct crash_uid *uid_set;
73360 +static unsigned short uid_used;
73361 +static DEFINE_SPINLOCK(gr_uid_lock);
73362 +extern rwlock_t gr_inode_lock;
73363 +extern struct acl_subject_label *
73364 + lookup_acl_subj_label(const ino_t inode, const dev_t dev,
73365 + struct acl_role_label *role);
73366 +
73367 +static inline dev_t __get_dev(const struct dentry *dentry)
73368 +{
73369 +#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
73370 + if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
73371 + return BTRFS_I(dentry->d_inode)->root->anon_dev;
73372 + else
73373 +#endif
73374 + return dentry->d_sb->s_dev;
73375 +}
73376 +
73377 +int
73378 +gr_init_uidset(void)
73379 +{
73380 + uid_set =
73381 + kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
73382 + uid_used = 0;
73383 +
73384 + return uid_set ? 1 : 0;
73385 +}
73386 +
73387 +void
73388 +gr_free_uidset(void)
73389 +{
73390 + if (uid_set) {
73391 + struct crash_uid *tmpset;
73392 + spin_lock(&gr_uid_lock);
73393 + tmpset = uid_set;
73394 + uid_set = NULL;
73395 + uid_used = 0;
73396 + spin_unlock(&gr_uid_lock);
73397 + if (tmpset)
73398 + kfree(tmpset);
73399 + }
73400 +
73401 + return;
73402 +}
73403 +
73404 +int
73405 +gr_find_uid(const uid_t uid)
73406 +{
73407 + struct crash_uid *tmp = uid_set;
73408 + uid_t buid;
73409 + int low = 0, high = uid_used - 1, mid;
73410 +
73411 + while (high >= low) {
73412 + mid = (low + high) >> 1;
73413 + buid = tmp[mid].uid;
73414 + if (buid == uid)
73415 + return mid;
73416 + if (buid > uid)
73417 + high = mid - 1;
73418 + if (buid < uid)
73419 + low = mid + 1;
73420 + }
73421 +
73422 + return -1;
73423 +}
73424 +
73425 +static __inline__ void
73426 +gr_insertsort(void)
73427 +{
73428 + unsigned short i, j;
73429 + struct crash_uid index;
73430 +
73431 + for (i = 1; i < uid_used; i++) {
73432 + index = uid_set[i];
73433 + j = i;
73434 + while ((j > 0) && uid_set[j - 1].uid > index.uid) {
73435 + uid_set[j] = uid_set[j - 1];
73436 + j--;
73437 + }
73438 + uid_set[j] = index;
73439 + }
73440 +
73441 + return;
73442 +}
73443 +
73444 +static __inline__ void
73445 +gr_insert_uid(const kuid_t kuid, const unsigned long expires)
73446 +{
73447 + int loc;
73448 + uid_t uid = GR_GLOBAL_UID(kuid);
73449 +
73450 + if (uid_used == GR_UIDTABLE_MAX)
73451 + return;
73452 +
73453 + loc = gr_find_uid(uid);
73454 +
73455 + if (loc >= 0) {
73456 + uid_set[loc].expires = expires;
73457 + return;
73458 + }
73459 +
73460 + uid_set[uid_used].uid = uid;
73461 + uid_set[uid_used].expires = expires;
73462 + uid_used++;
73463 +
73464 + gr_insertsort();
73465 +
73466 + return;
73467 +}
73468 +
73469 +void
73470 +gr_remove_uid(const unsigned short loc)
73471 +{
73472 + unsigned short i;
73473 +
73474 + for (i = loc + 1; i < uid_used; i++)
73475 + uid_set[i - 1] = uid_set[i];
73476 +
73477 + uid_used--;
73478 +
73479 + return;
73480 +}
73481 +
73482 +int
73483 +gr_check_crash_uid(const kuid_t kuid)
73484 +{
73485 + int loc;
73486 + int ret = 0;
73487 + uid_t uid;
73488 +
73489 + if (unlikely(!gr_acl_is_enabled()))
73490 + return 0;
73491 +
73492 + uid = GR_GLOBAL_UID(kuid);
73493 +
73494 + spin_lock(&gr_uid_lock);
73495 + loc = gr_find_uid(uid);
73496 +
73497 + if (loc < 0)
73498 + goto out_unlock;
73499 +
73500 + if (time_before_eq(uid_set[loc].expires, get_seconds()))
73501 + gr_remove_uid(loc);
73502 + else
73503 + ret = 1;
73504 +
73505 +out_unlock:
73506 + spin_unlock(&gr_uid_lock);
73507 + return ret;
73508 +}
73509 +
73510 +static __inline__ int
73511 +proc_is_setxid(const struct cred *cred)
73512 +{
73513 + if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
73514 + !uid_eq(cred->uid, cred->fsuid))
73515 + return 1;
73516 + if (!gid_eq(cred->gid, cred->egid) || !gid_eq(cred->gid, cred->sgid) ||
73517 + !gid_eq(cred->gid, cred->fsgid))
73518 + return 1;
73519 +
73520 + return 0;
73521 +}
73522 +
73523 +extern int gr_fake_force_sig(int sig, struct task_struct *t);
73524 +
73525 +void
73526 +gr_handle_crash(struct task_struct *task, const int sig)
73527 +{
73528 + struct acl_subject_label *curr;
73529 + struct task_struct *tsk, *tsk2;
73530 + const struct cred *cred;
73531 + const struct cred *cred2;
73532 +
73533 + if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
73534 + return;
73535 +
73536 + if (unlikely(!gr_acl_is_enabled()))
73537 + return;
73538 +
73539 + curr = task->acl;
73540 +
73541 + if (!(curr->resmask & (1U << GR_CRASH_RES)))
73542 + return;
73543 +
73544 + if (time_before_eq(curr->expires, get_seconds())) {
73545 + curr->expires = 0;
73546 + curr->crashes = 0;
73547 + }
73548 +
73549 + curr->crashes++;
73550 +
73551 + if (!curr->expires)
73552 + curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
73553 +
73554 + if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
73555 + time_after(curr->expires, get_seconds())) {
73556 + rcu_read_lock();
73557 + cred = __task_cred(task);
73558 + if (gr_is_global_nonroot(cred->uid) && proc_is_setxid(cred)) {
73559 + gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
73560 + spin_lock(&gr_uid_lock);
73561 + gr_insert_uid(cred->uid, curr->expires);
73562 + spin_unlock(&gr_uid_lock);
73563 + curr->expires = 0;
73564 + curr->crashes = 0;
73565 + read_lock(&tasklist_lock);
73566 + do_each_thread(tsk2, tsk) {
73567 + cred2 = __task_cred(tsk);
73568 + if (tsk != task && uid_eq(cred2->uid, cred->uid))
73569 + gr_fake_force_sig(SIGKILL, tsk);
73570 + } while_each_thread(tsk2, tsk);
73571 + read_unlock(&tasklist_lock);
73572 + } else {
73573 + gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
73574 + read_lock(&tasklist_lock);
73575 + read_lock(&grsec_exec_file_lock);
73576 + do_each_thread(tsk2, tsk) {
73577 + if (likely(tsk != task)) {
73578 + // if this thread has the same subject as the one that triggered
73579 + // RES_CRASH and it's the same binary, kill it
73580 + if (tsk->acl == task->acl && gr_is_same_file(tsk->exec_file, task->exec_file))
73581 + gr_fake_force_sig(SIGKILL, tsk);
73582 + }
73583 + } while_each_thread(tsk2, tsk);
73584 + read_unlock(&grsec_exec_file_lock);
73585 + read_unlock(&tasklist_lock);
73586 + }
73587 + rcu_read_unlock();
73588 + }
73589 +
73590 + return;
73591 +}
73592 +
73593 +int
73594 +gr_check_crash_exec(const struct file *filp)
73595 +{
73596 + struct acl_subject_label *curr;
73597 +
73598 + if (unlikely(!gr_acl_is_enabled()))
73599 + return 0;
73600 +
73601 + read_lock(&gr_inode_lock);
73602 + curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino,
73603 + __get_dev(filp->f_path.dentry),
73604 + current->role);
73605 + read_unlock(&gr_inode_lock);
73606 +
73607 + if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
73608 + (!curr->crashes && !curr->expires))
73609 + return 0;
73610 +
73611 + if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
73612 + time_after(curr->expires, get_seconds()))
73613 + return 1;
73614 + else if (time_before_eq(curr->expires, get_seconds())) {
73615 + curr->crashes = 0;
73616 + curr->expires = 0;
73617 + }
73618 +
73619 + return 0;
73620 +}
73621 +
73622 +void
73623 +gr_handle_alertkill(struct task_struct *task)
73624 +{
73625 + struct acl_subject_label *curracl;
73626 + __u32 curr_ip;
73627 + struct task_struct *p, *p2;
73628 +
73629 + if (unlikely(!gr_acl_is_enabled()))
73630 + return;
73631 +
73632 + curracl = task->acl;
73633 + curr_ip = task->signal->curr_ip;
73634 +
73635 + if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
73636 + read_lock(&tasklist_lock);
73637 + do_each_thread(p2, p) {
73638 + if (p->signal->curr_ip == curr_ip)
73639 + gr_fake_force_sig(SIGKILL, p);
73640 + } while_each_thread(p2, p);
73641 + read_unlock(&tasklist_lock);
73642 + } else if (curracl->mode & GR_KILLPROC)
73643 + gr_fake_force_sig(SIGKILL, task);
73644 +
73645 + return;
73646 +}
73647 diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
73648 new file mode 100644
73649 index 0000000..98011b0
73650 --- /dev/null
73651 +++ b/grsecurity/gracl_shm.c
73652 @@ -0,0 +1,40 @@
73653 +#include <linux/kernel.h>
73654 +#include <linux/mm.h>
73655 +#include <linux/sched.h>
73656 +#include <linux/file.h>
73657 +#include <linux/ipc.h>
73658 +#include <linux/gracl.h>
73659 +#include <linux/grsecurity.h>
73660 +#include <linux/grinternal.h>
73661 +
73662 +int
73663 +gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
73664 + const time_t shm_createtime, const kuid_t cuid, const int shmid)
73665 +{
73666 + struct task_struct *task;
73667 +
73668 + if (!gr_acl_is_enabled())
73669 + return 1;
73670 +
73671 + rcu_read_lock();
73672 + read_lock(&tasklist_lock);
73673 +
73674 + task = find_task_by_vpid(shm_cprid);
73675 +
73676 + if (unlikely(!task))
73677 + task = find_task_by_vpid(shm_lapid);
73678 +
73679 + if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
73680 + (task_pid_nr(task) == shm_lapid)) &&
73681 + (task->acl->mode & GR_PROTSHM) &&
73682 + (task->acl != current->acl))) {
73683 + read_unlock(&tasklist_lock);
73684 + rcu_read_unlock();
73685 + gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
73686 + return 0;
73687 + }
73688 + read_unlock(&tasklist_lock);
73689 + rcu_read_unlock();
73690 +
73691 + return 1;
73692 +}
73693 diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
73694 new file mode 100644
73695 index 0000000..bc0be01
73696 --- /dev/null
73697 +++ b/grsecurity/grsec_chdir.c
73698 @@ -0,0 +1,19 @@
73699 +#include <linux/kernel.h>
73700 +#include <linux/sched.h>
73701 +#include <linux/fs.h>
73702 +#include <linux/file.h>
73703 +#include <linux/grsecurity.h>
73704 +#include <linux/grinternal.h>
73705 +
73706 +void
73707 +gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
73708 +{
73709 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
73710 + if ((grsec_enable_chdir && grsec_enable_group &&
73711 + in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
73712 + !grsec_enable_group)) {
73713 + gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
73714 + }
73715 +#endif
73716 + return;
73717 +}
73718 diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
73719 new file mode 100644
73720 index 0000000..baa635c
73721 --- /dev/null
73722 +++ b/grsecurity/grsec_chroot.c
73723 @@ -0,0 +1,387 @@
73724 +#include <linux/kernel.h>
73725 +#include <linux/module.h>
73726 +#include <linux/sched.h>
73727 +#include <linux/file.h>
73728 +#include <linux/fs.h>
73729 +#include <linux/mount.h>
73730 +#include <linux/types.h>
73731 +#include "../fs/mount.h"
73732 +#include <linux/grsecurity.h>
73733 +#include <linux/grinternal.h>
73734 +
73735 +#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
73736 +int gr_init_ran;
73737 +#endif
73738 +
73739 +void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
73740 +{
73741 +#ifdef CONFIG_GRKERNSEC
73742 + if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
73743 + path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
73744 +#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
73745 + && gr_init_ran
73746 +#endif
73747 + )
73748 + task->gr_is_chrooted = 1;
73749 + else {
73750 +#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
73751 + if (task_pid_nr(task) == 1 && !gr_init_ran)
73752 + gr_init_ran = 1;
73753 +#endif
73754 + task->gr_is_chrooted = 0;
73755 + }
73756 +
73757 + task->gr_chroot_dentry = path->dentry;
73758 +#endif
73759 + return;
73760 +}
73761 +
73762 +void gr_clear_chroot_entries(struct task_struct *task)
73763 +{
73764 +#ifdef CONFIG_GRKERNSEC
73765 + task->gr_is_chrooted = 0;
73766 + task->gr_chroot_dentry = NULL;
73767 +#endif
73768 + return;
73769 +}
73770 +
73771 +int
73772 +gr_handle_chroot_unix(const pid_t pid)
73773 +{
73774 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
73775 + struct task_struct *p;
73776 +
73777 + if (unlikely(!grsec_enable_chroot_unix))
73778 + return 1;
73779 +
73780 + if (likely(!proc_is_chrooted(current)))
73781 + return 1;
73782 +
73783 + rcu_read_lock();
73784 + read_lock(&tasklist_lock);
73785 + p = find_task_by_vpid_unrestricted(pid);
73786 + if (unlikely(p && !have_same_root(current, p))) {
73787 + read_unlock(&tasklist_lock);
73788 + rcu_read_unlock();
73789 + gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
73790 + return 0;
73791 + }
73792 + read_unlock(&tasklist_lock);
73793 + rcu_read_unlock();
73794 +#endif
73795 + return 1;
73796 +}
73797 +
73798 +int
73799 +gr_handle_chroot_nice(void)
73800 +{
73801 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
73802 + if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
73803 + gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
73804 + return -EPERM;
73805 + }
73806 +#endif
73807 + return 0;
73808 +}
73809 +
73810 +int
73811 +gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
73812 +{
73813 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
73814 + if (grsec_enable_chroot_nice && (niceval < task_nice(p))
73815 + && proc_is_chrooted(current)) {
73816 + gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
73817 + return -EACCES;
73818 + }
73819 +#endif
73820 + return 0;
73821 +}
73822 +
73823 +int
73824 +gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
73825 +{
73826 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
73827 + struct task_struct *p;
73828 + int ret = 0;
73829 + if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
73830 + return ret;
73831 +
73832 + read_lock(&tasklist_lock);
73833 + do_each_pid_task(pid, type, p) {
73834 + if (!have_same_root(current, p)) {
73835 + ret = 1;
73836 + goto out;
73837 + }
73838 + } while_each_pid_task(pid, type, p);
73839 +out:
73840 + read_unlock(&tasklist_lock);
73841 + return ret;
73842 +#endif
73843 + return 0;
73844 +}
73845 +
73846 +int
73847 +gr_pid_is_chrooted(struct task_struct *p)
73848 +{
73849 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
73850 + if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
73851 + return 0;
73852 +
73853 + if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
73854 + !have_same_root(current, p)) {
73855 + return 1;
73856 + }
73857 +#endif
73858 + return 0;
73859 +}
73860 +
73861 +EXPORT_SYMBOL_GPL(gr_pid_is_chrooted);
73862 +
73863 +#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
73864 +int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
73865 +{
73866 + struct path path, currentroot;
73867 + int ret = 0;
73868 +
73869 + path.dentry = (struct dentry *)u_dentry;
73870 + path.mnt = (struct vfsmount *)u_mnt;
73871 + get_fs_root(current->fs, &currentroot);
73872 + if (path_is_under(&path, &currentroot))
73873 + ret = 1;
73874 + path_put(&currentroot);
73875 +
73876 + return ret;
73877 +}
73878 +#endif
73879 +
73880 +int
73881 +gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
73882 +{
73883 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
73884 + if (!grsec_enable_chroot_fchdir)
73885 + return 1;
73886 +
73887 + if (!proc_is_chrooted(current))
73888 + return 1;
73889 + else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
73890 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
73891 + return 0;
73892 + }
73893 +#endif
73894 + return 1;
73895 +}
73896 +
73897 +int
73898 +gr_chroot_fhandle(void)
73899 +{
73900 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
73901 + if (!grsec_enable_chroot_fchdir)
73902 + return 1;
73903 +
73904 + if (!proc_is_chrooted(current))
73905 + return 1;
73906 + else {
73907 + gr_log_noargs(GR_DONT_AUDIT, GR_CHROOT_FHANDLE_MSG);
73908 + return 0;
73909 + }
73910 +#endif
73911 + return 1;
73912 +}
73913 +
73914 +int
73915 +gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
73916 + const time_t shm_createtime)
73917 +{
73918 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
73919 + struct task_struct *p;
73920 + time_t starttime;
73921 +
73922 + if (unlikely(!grsec_enable_chroot_shmat))
73923 + return 1;
73924 +
73925 + if (likely(!proc_is_chrooted(current)))
73926 + return 1;
73927 +
73928 + rcu_read_lock();
73929 + read_lock(&tasklist_lock);
73930 +
73931 + if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
73932 + starttime = p->start_time.tv_sec;
73933 + if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) {
73934 + if (have_same_root(current, p)) {
73935 + goto allow;
73936 + } else {
73937 + read_unlock(&tasklist_lock);
73938 + rcu_read_unlock();
73939 + gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
73940 + return 0;
73941 + }
73942 + }
73943 + /* creator exited, pid reuse, fall through to next check */
73944 + }
73945 + if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
73946 + if (unlikely(!have_same_root(current, p))) {
73947 + read_unlock(&tasklist_lock);
73948 + rcu_read_unlock();
73949 + gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
73950 + return 0;
73951 + }
73952 + }
73953 +
73954 +allow:
73955 + read_unlock(&tasklist_lock);
73956 + rcu_read_unlock();
73957 +#endif
73958 + return 1;
73959 +}
73960 +
73961 +void
73962 +gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
73963 +{
73964 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
73965 + if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
73966 + gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
73967 +#endif
73968 + return;
73969 +}
73970 +
73971 +int
73972 +gr_handle_chroot_mknod(const struct dentry *dentry,
73973 + const struct vfsmount *mnt, const int mode)
73974 +{
73975 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
73976 + if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
73977 + proc_is_chrooted(current)) {
73978 + gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
73979 + return -EPERM;
73980 + }
73981 +#endif
73982 + return 0;
73983 +}
73984 +
73985 +int
73986 +gr_handle_chroot_mount(const struct dentry *dentry,
73987 + const struct vfsmount *mnt, const char *dev_name)
73988 +{
73989 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
73990 + if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
73991 + gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
73992 + return -EPERM;
73993 + }
73994 +#endif
73995 + return 0;
73996 +}
73997 +
73998 +int
73999 +gr_handle_chroot_pivot(void)
74000 +{
74001 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
74002 + if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
74003 + gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
74004 + return -EPERM;
74005 + }
74006 +#endif
74007 + return 0;
74008 +}
74009 +
74010 +int
74011 +gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
74012 +{
74013 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
74014 + if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
74015 + !gr_is_outside_chroot(dentry, mnt)) {
74016 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
74017 + return -EPERM;
74018 + }
74019 +#endif
74020 + return 0;
74021 +}
74022 +
74023 +extern const char *captab_log[];
74024 +extern int captab_log_entries;
74025 +
74026 +int
74027 +gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
74028 +{
74029 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
74030 + if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
74031 + kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
74032 + if (cap_raised(chroot_caps, cap)) {
74033 + if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
74034 + gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
74035 + }
74036 + return 0;
74037 + }
74038 + }
74039 +#endif
74040 + return 1;
74041 +}
74042 +
74043 +int
74044 +gr_chroot_is_capable(const int cap)
74045 +{
74046 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
74047 + return gr_task_chroot_is_capable(current, current_cred(), cap);
74048 +#endif
74049 + return 1;
74050 +}
74051 +
74052 +int
74053 +gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
74054 +{
74055 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
74056 + if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
74057 + kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
74058 + if (cap_raised(chroot_caps, cap)) {
74059 + return 0;
74060 + }
74061 + }
74062 +#endif
74063 + return 1;
74064 +}
74065 +
74066 +int
74067 +gr_chroot_is_capable_nolog(const int cap)
74068 +{
74069 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
74070 + return gr_task_chroot_is_capable_nolog(current, cap);
74071 +#endif
74072 + return 1;
74073 +}
74074 +
74075 +int
74076 +gr_handle_chroot_sysctl(const int op)
74077 +{
74078 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
74079 + if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
74080 + proc_is_chrooted(current))
74081 + return -EACCES;
74082 +#endif
74083 + return 0;
74084 +}
74085 +
74086 +void
74087 +gr_handle_chroot_chdir(const struct path *path)
74088 +{
74089 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
74090 + if (grsec_enable_chroot_chdir)
74091 + set_fs_pwd(current->fs, path);
74092 +#endif
74093 + return;
74094 +}
74095 +
74096 +int
74097 +gr_handle_chroot_chmod(const struct dentry *dentry,
74098 + const struct vfsmount *mnt, const int mode)
74099 +{
74100 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
74101 + /* allow chmod +s on directories, but not files */
74102 + if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
74103 + ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
74104 + proc_is_chrooted(current)) {
74105 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
74106 + return -EPERM;
74107 + }
74108 +#endif
74109 + return 0;
74110 +}
74111 diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
74112 new file mode 100644
74113 index 0000000..de31e65
74114 --- /dev/null
74115 +++ b/grsecurity/grsec_disabled.c
74116 @@ -0,0 +1,434 @@
74117 +#include <linux/kernel.h>
74118 +#include <linux/module.h>
74119 +#include <linux/sched.h>
74120 +#include <linux/file.h>
74121 +#include <linux/fs.h>
74122 +#include <linux/kdev_t.h>
74123 +#include <linux/net.h>
74124 +#include <linux/in.h>
74125 +#include <linux/ip.h>
74126 +#include <linux/skbuff.h>
74127 +#include <linux/sysctl.h>
74128 +
74129 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
74130 +void
74131 +pax_set_initial_flags(struct linux_binprm *bprm)
74132 +{
74133 + return;
74134 +}
74135 +#endif
74136 +
74137 +#ifdef CONFIG_SYSCTL
74138 +__u32
74139 +gr_handle_sysctl(const struct ctl_table * table, const int op)
74140 +{
74141 + return 0;
74142 +}
74143 +#endif
74144 +
74145 +#ifdef CONFIG_TASKSTATS
74146 +int gr_is_taskstats_denied(int pid)
74147 +{
74148 + return 0;
74149 +}
74150 +#endif
74151 +
74152 +int
74153 +gr_acl_is_enabled(void)
74154 +{
74155 + return 0;
74156 +}
74157 +
74158 +void
74159 +gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
74160 +{
74161 + return;
74162 +}
74163 +
74164 +int
74165 +gr_handle_rawio(const struct inode *inode)
74166 +{
74167 + return 0;
74168 +}
74169 +
74170 +void
74171 +gr_acl_handle_psacct(struct task_struct *task, const long code)
74172 +{
74173 + return;
74174 +}
74175 +
74176 +int
74177 +gr_handle_ptrace(struct task_struct *task, const long request)
74178 +{
74179 + return 0;
74180 +}
74181 +
74182 +int
74183 +gr_handle_proc_ptrace(struct task_struct *task)
74184 +{
74185 + return 0;
74186 +}
74187 +
74188 +int
74189 +gr_set_acls(const int type)
74190 +{
74191 + return 0;
74192 +}
74193 +
74194 +int
74195 +gr_check_hidden_task(const struct task_struct *tsk)
74196 +{
74197 + return 0;
74198 +}
74199 +
74200 +int
74201 +gr_check_protected_task(const struct task_struct *task)
74202 +{
74203 + return 0;
74204 +}
74205 +
74206 +int
74207 +gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
74208 +{
74209 + return 0;
74210 +}
74211 +
74212 +void
74213 +gr_copy_label(struct task_struct *tsk)
74214 +{
74215 + return;
74216 +}
74217 +
74218 +void
74219 +gr_set_pax_flags(struct task_struct *task)
74220 +{
74221 + return;
74222 +}
74223 +
74224 +int
74225 +gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
74226 + const int unsafe_share)
74227 +{
74228 + return 0;
74229 +}
74230 +
74231 +void
74232 +gr_handle_delete(const ino_t ino, const dev_t dev)
74233 +{
74234 + return;
74235 +}
74236 +
74237 +void
74238 +gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
74239 +{
74240 + return;
74241 +}
74242 +
74243 +void
74244 +gr_handle_crash(struct task_struct *task, const int sig)
74245 +{
74246 + return;
74247 +}
74248 +
74249 +int
74250 +gr_check_crash_exec(const struct file *filp)
74251 +{
74252 + return 0;
74253 +}
74254 +
74255 +int
74256 +gr_check_crash_uid(const kuid_t uid)
74257 +{
74258 + return 0;
74259 +}
74260 +
74261 +void
74262 +gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
74263 + struct dentry *old_dentry,
74264 + struct dentry *new_dentry,
74265 + struct vfsmount *mnt, const __u8 replace, unsigned int flags)
74266 +{
74267 + return;
74268 +}
74269 +
74270 +int
74271 +gr_search_socket(const int family, const int type, const int protocol)
74272 +{
74273 + return 1;
74274 +}
74275 +
74276 +int
74277 +gr_search_connectbind(const int mode, const struct socket *sock,
74278 + const struct sockaddr_in *addr)
74279 +{
74280 + return 0;
74281 +}
74282 +
74283 +void
74284 +gr_handle_alertkill(struct task_struct *task)
74285 +{
74286 + return;
74287 +}
74288 +
74289 +__u32
74290 +gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
74291 +{
74292 + return 1;
74293 +}
74294 +
74295 +__u32
74296 +gr_acl_handle_hidden_file(const struct dentry * dentry,
74297 + const struct vfsmount * mnt)
74298 +{
74299 + return 1;
74300 +}
74301 +
74302 +__u32
74303 +gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
74304 + int acc_mode)
74305 +{
74306 + return 1;
74307 +}
74308 +
74309 +__u32
74310 +gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
74311 +{
74312 + return 1;
74313 +}
74314 +
74315 +__u32
74316 +gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
74317 +{
74318 + return 1;
74319 +}
74320 +
74321 +int
74322 +gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
74323 + unsigned int *vm_flags)
74324 +{
74325 + return 1;
74326 +}
74327 +
74328 +__u32
74329 +gr_acl_handle_truncate(const struct dentry * dentry,
74330 + const struct vfsmount * mnt)
74331 +{
74332 + return 1;
74333 +}
74334 +
74335 +__u32
74336 +gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
74337 +{
74338 + return 1;
74339 +}
74340 +
74341 +__u32
74342 +gr_acl_handle_access(const struct dentry * dentry,
74343 + const struct vfsmount * mnt, const int fmode)
74344 +{
74345 + return 1;
74346 +}
74347 +
74348 +__u32
74349 +gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
74350 + umode_t *mode)
74351 +{
74352 + return 1;
74353 +}
74354 +
74355 +__u32
74356 +gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
74357 +{
74358 + return 1;
74359 +}
74360 +
74361 +__u32
74362 +gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
74363 +{
74364 + return 1;
74365 +}
74366 +
74367 +__u32
74368 +gr_acl_handle_removexattr(const struct dentry * dentry, const struct vfsmount * mnt)
74369 +{
74370 + return 1;
74371 +}
74372 +
74373 +void
74374 +grsecurity_init(void)
74375 +{
74376 + return;
74377 +}
74378 +
74379 +umode_t gr_acl_umask(void)
74380 +{
74381 + return 0;
74382 +}
74383 +
74384 +__u32
74385 +gr_acl_handle_mknod(const struct dentry * new_dentry,
74386 + const struct dentry * parent_dentry,
74387 + const struct vfsmount * parent_mnt,
74388 + const int mode)
74389 +{
74390 + return 1;
74391 +}
74392 +
74393 +__u32
74394 +gr_acl_handle_mkdir(const struct dentry * new_dentry,
74395 + const struct dentry * parent_dentry,
74396 + const struct vfsmount * parent_mnt)
74397 +{
74398 + return 1;
74399 +}
74400 +
74401 +__u32
74402 +gr_acl_handle_symlink(const struct dentry * new_dentry,
74403 + const struct dentry * parent_dentry,
74404 + const struct vfsmount * parent_mnt, const struct filename *from)
74405 +{
74406 + return 1;
74407 +}
74408 +
74409 +__u32
74410 +gr_acl_handle_link(const struct dentry * new_dentry,
74411 + const struct dentry * parent_dentry,
74412 + const struct vfsmount * parent_mnt,
74413 + const struct dentry * old_dentry,
74414 + const struct vfsmount * old_mnt, const struct filename *to)
74415 +{
74416 + return 1;
74417 +}
74418 +
74419 +int
74420 +gr_acl_handle_rename(const struct dentry *new_dentry,
74421 + const struct dentry *parent_dentry,
74422 + const struct vfsmount *parent_mnt,
74423 + const struct dentry *old_dentry,
74424 + const struct inode *old_parent_inode,
74425 + const struct vfsmount *old_mnt, const struct filename *newname,
74426 + unsigned int flags)
74427 +{
74428 + return 0;
74429 +}
74430 +
74431 +int
74432 +gr_acl_handle_filldir(const struct file *file, const char *name,
74433 + const int namelen, const ino_t ino)
74434 +{
74435 + return 1;
74436 +}
74437 +
74438 +int
74439 +gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
74440 + const time_t shm_createtime, const kuid_t cuid, const int shmid)
74441 +{
74442 + return 1;
74443 +}
74444 +
74445 +int
74446 +gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
74447 +{
74448 + return 0;
74449 +}
74450 +
74451 +int
74452 +gr_search_accept(const struct socket *sock)
74453 +{
74454 + return 0;
74455 +}
74456 +
74457 +int
74458 +gr_search_listen(const struct socket *sock)
74459 +{
74460 + return 0;
74461 +}
74462 +
74463 +int
74464 +gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
74465 +{
74466 + return 0;
74467 +}
74468 +
74469 +__u32
74470 +gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
74471 +{
74472 + return 1;
74473 +}
74474 +
74475 +__u32
74476 +gr_acl_handle_creat(const struct dentry * dentry,
74477 + const struct dentry * p_dentry,
74478 + const struct vfsmount * p_mnt, int open_flags, int acc_mode,
74479 + const int imode)
74480 +{
74481 + return 1;
74482 +}
74483 +
74484 +void
74485 +gr_acl_handle_exit(void)
74486 +{
74487 + return;
74488 +}
74489 +
74490 +int
74491 +gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
74492 +{
74493 + return 1;
74494 +}
74495 +
74496 +void
74497 +gr_set_role_label(const kuid_t uid, const kgid_t gid)
74498 +{
74499 + return;
74500 +}
74501 +
74502 +int
74503 +gr_acl_handle_procpidmem(const struct task_struct *task)
74504 +{
74505 + return 0;
74506 +}
74507 +
74508 +int
74509 +gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
74510 +{
74511 + return 0;
74512 +}
74513 +
74514 +int
74515 +gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
74516 +{
74517 + return 0;
74518 +}
74519 +
74520 +int
74521 +gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
74522 +{
74523 + return 0;
74524 +}
74525 +
74526 +int
74527 +gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
74528 +{
74529 + return 0;
74530 +}
74531 +
74532 +int gr_acl_enable_at_secure(void)
74533 +{
74534 + return 0;
74535 +}
74536 +
74537 +dev_t gr_get_dev_from_dentry(struct dentry *dentry)
74538 +{
74539 + return dentry->d_sb->s_dev;
74540 +}
74541 +
74542 +void gr_put_exec_file(struct task_struct *task)
74543 +{
74544 + return;
74545 +}
74546 +
74547 +#ifdef CONFIG_SECURITY
74548 +EXPORT_SYMBOL_GPL(gr_check_user_change);
74549 +EXPORT_SYMBOL_GPL(gr_check_group_change);
74550 +#endif
74551 diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
74552 new file mode 100644
74553 index 0000000..f35f454
74554 --- /dev/null
74555 +++ b/grsecurity/grsec_exec.c
74556 @@ -0,0 +1,187 @@
74557 +#include <linux/kernel.h>
74558 +#include <linux/sched.h>
74559 +#include <linux/file.h>
74560 +#include <linux/binfmts.h>
74561 +#include <linux/fs.h>
74562 +#include <linux/types.h>
74563 +#include <linux/grdefs.h>
74564 +#include <linux/grsecurity.h>
74565 +#include <linux/grinternal.h>
74566 +#include <linux/capability.h>
74567 +#include <linux/module.h>
74568 +#include <linux/compat.h>
74569 +
74570 +#include <asm/uaccess.h>
74571 +
74572 +#ifdef CONFIG_GRKERNSEC_EXECLOG
74573 +static char gr_exec_arg_buf[132];
74574 +static DEFINE_MUTEX(gr_exec_arg_mutex);
74575 +#endif
74576 +
74577 +struct user_arg_ptr {
74578 +#ifdef CONFIG_COMPAT
74579 + bool is_compat;
74580 +#endif
74581 + union {
74582 + const char __user *const __user *native;
74583 +#ifdef CONFIG_COMPAT
74584 + const compat_uptr_t __user *compat;
74585 +#endif
74586 + } ptr;
74587 +};
74588 +
74589 +extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
74590 +
74591 +void
74592 +gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
74593 +{
74594 +#ifdef CONFIG_GRKERNSEC_EXECLOG
74595 + char *grarg = gr_exec_arg_buf;
74596 + unsigned int i, x, execlen = 0;
74597 + char c;
74598 +
74599 + if (!((grsec_enable_execlog && grsec_enable_group &&
74600 + in_group_p(grsec_audit_gid))
74601 + || (grsec_enable_execlog && !grsec_enable_group)))
74602 + return;
74603 +
74604 + mutex_lock(&gr_exec_arg_mutex);
74605 + memset(grarg, 0, sizeof(gr_exec_arg_buf));
74606 +
74607 + for (i = 0; i < bprm->argc && execlen < 128; i++) {
74608 + const char __user *p;
74609 + unsigned int len;
74610 +
74611 + p = get_user_arg_ptr(argv, i);
74612 + if (IS_ERR(p))
74613 + goto log;
74614 +
74615 + len = strnlen_user(p, 128 - execlen);
74616 + if (len > 128 - execlen)
74617 + len = 128 - execlen;
74618 + else if (len > 0)
74619 + len--;
74620 + if (copy_from_user(grarg + execlen, p, len))
74621 + goto log;
74622 +
74623 + /* rewrite unprintable characters */
74624 + for (x = 0; x < len; x++) {
74625 + c = *(grarg + execlen + x);
74626 + if (c < 32 || c > 126)
74627 + *(grarg + execlen + x) = ' ';
74628 + }
74629 +
74630 + execlen += len;
74631 + *(grarg + execlen) = ' ';
74632 + *(grarg + execlen + 1) = '\0';
74633 + execlen++;
74634 + }
74635 +
74636 + log:
74637 + gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
74638 + bprm->file->f_path.mnt, grarg);
74639 + mutex_unlock(&gr_exec_arg_mutex);
74640 +#endif
74641 + return;
74642 +}
74643 +
74644 +#ifdef CONFIG_GRKERNSEC
74645 +extern int gr_acl_is_capable(const int cap);
74646 +extern int gr_acl_is_capable_nolog(const int cap);
74647 +extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
74648 +extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
74649 +extern int gr_chroot_is_capable(const int cap);
74650 +extern int gr_chroot_is_capable_nolog(const int cap);
74651 +extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
74652 +extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
74653 +#endif
74654 +
74655 +const char *captab_log[] = {
74656 + "CAP_CHOWN",
74657 + "CAP_DAC_OVERRIDE",
74658 + "CAP_DAC_READ_SEARCH",
74659 + "CAP_FOWNER",
74660 + "CAP_FSETID",
74661 + "CAP_KILL",
74662 + "CAP_SETGID",
74663 + "CAP_SETUID",
74664 + "CAP_SETPCAP",
74665 + "CAP_LINUX_IMMUTABLE",
74666 + "CAP_NET_BIND_SERVICE",
74667 + "CAP_NET_BROADCAST",
74668 + "CAP_NET_ADMIN",
74669 + "CAP_NET_RAW",
74670 + "CAP_IPC_LOCK",
74671 + "CAP_IPC_OWNER",
74672 + "CAP_SYS_MODULE",
74673 + "CAP_SYS_RAWIO",
74674 + "CAP_SYS_CHROOT",
74675 + "CAP_SYS_PTRACE",
74676 + "CAP_SYS_PACCT",
74677 + "CAP_SYS_ADMIN",
74678 + "CAP_SYS_BOOT",
74679 + "CAP_SYS_NICE",
74680 + "CAP_SYS_RESOURCE",
74681 + "CAP_SYS_TIME",
74682 + "CAP_SYS_TTY_CONFIG",
74683 + "CAP_MKNOD",
74684 + "CAP_LEASE",
74685 + "CAP_AUDIT_WRITE",
74686 + "CAP_AUDIT_CONTROL",
74687 + "CAP_SETFCAP",
74688 + "CAP_MAC_OVERRIDE",
74689 + "CAP_MAC_ADMIN",
74690 + "CAP_SYSLOG",
74691 + "CAP_WAKE_ALARM"
74692 +};
74693 +
74694 +int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
74695 +
74696 +int gr_is_capable(const int cap)
74697 +{
74698 +#ifdef CONFIG_GRKERNSEC
74699 + if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
74700 + return 1;
74701 + return 0;
74702 +#else
74703 + return 1;
74704 +#endif
74705 +}
74706 +
74707 +int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
74708 +{
74709 +#ifdef CONFIG_GRKERNSEC
74710 + if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
74711 + return 1;
74712 + return 0;
74713 +#else
74714 + return 1;
74715 +#endif
74716 +}
74717 +
74718 +int gr_is_capable_nolog(const int cap)
74719 +{
74720 +#ifdef CONFIG_GRKERNSEC
74721 + if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
74722 + return 1;
74723 + return 0;
74724 +#else
74725 + return 1;
74726 +#endif
74727 +}
74728 +
74729 +int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
74730 +{
74731 +#ifdef CONFIG_GRKERNSEC
74732 + if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
74733 + return 1;
74734 + return 0;
74735 +#else
74736 + return 1;
74737 +#endif
74738 +}
74739 +
74740 +EXPORT_SYMBOL_GPL(gr_is_capable);
74741 +EXPORT_SYMBOL_GPL(gr_is_capable_nolog);
74742 +EXPORT_SYMBOL_GPL(gr_task_is_capable);
74743 +EXPORT_SYMBOL_GPL(gr_task_is_capable_nolog);
74744 diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
74745 new file mode 100644
74746 index 0000000..06cc6ea
74747 --- /dev/null
74748 +++ b/grsecurity/grsec_fifo.c
74749 @@ -0,0 +1,24 @@
74750 +#include <linux/kernel.h>
74751 +#include <linux/sched.h>
74752 +#include <linux/fs.h>
74753 +#include <linux/file.h>
74754 +#include <linux/grinternal.h>
74755 +
74756 +int
74757 +gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
74758 + const struct dentry *dir, const int flag, const int acc_mode)
74759 +{
74760 +#ifdef CONFIG_GRKERNSEC_FIFO
74761 + const struct cred *cred = current_cred();
74762 +
74763 + if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
74764 + !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
74765 + !uid_eq(dentry->d_inode->i_uid, dir->d_inode->i_uid) &&
74766 + !uid_eq(cred->fsuid, dentry->d_inode->i_uid)) {
74767 + if (!inode_permission(dentry->d_inode, acc_mode))
74768 + gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, GR_GLOBAL_UID(dentry->d_inode->i_uid), GR_GLOBAL_GID(dentry->d_inode->i_gid));
74769 + return -EACCES;
74770 + }
74771 +#endif
74772 + return 0;
74773 +}
74774 diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
74775 new file mode 100644
74776 index 0000000..8ca18bf
74777 --- /dev/null
74778 +++ b/grsecurity/grsec_fork.c
74779 @@ -0,0 +1,23 @@
74780 +#include <linux/kernel.h>
74781 +#include <linux/sched.h>
74782 +#include <linux/grsecurity.h>
74783 +#include <linux/grinternal.h>
74784 +#include <linux/errno.h>
74785 +
74786 +void
74787 +gr_log_forkfail(const int retval)
74788 +{
74789 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
74790 + if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
74791 + switch (retval) {
74792 + case -EAGAIN:
74793 + gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
74794 + break;
74795 + case -ENOMEM:
74796 + gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
74797 + break;
74798 + }
74799 + }
74800 +#endif
74801 + return;
74802 +}
74803 diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
74804 new file mode 100644
74805 index 0000000..ae6c028
74806 --- /dev/null
74807 +++ b/grsecurity/grsec_init.c
74808 @@ -0,0 +1,272 @@
74809 +#include <linux/kernel.h>
74810 +#include <linux/sched.h>
74811 +#include <linux/mm.h>
74812 +#include <linux/gracl.h>
74813 +#include <linux/slab.h>
74814 +#include <linux/vmalloc.h>
74815 +#include <linux/percpu.h>
74816 +#include <linux/module.h>
74817 +
74818 +int grsec_enable_ptrace_readexec;
74819 +int grsec_enable_setxid;
74820 +int grsec_enable_symlinkown;
74821 +kgid_t grsec_symlinkown_gid;
74822 +int grsec_enable_brute;
74823 +int grsec_enable_link;
74824 +int grsec_enable_dmesg;
74825 +int grsec_enable_harden_ptrace;
74826 +int grsec_enable_harden_ipc;
74827 +int grsec_enable_fifo;
74828 +int grsec_enable_execlog;
74829 +int grsec_enable_signal;
74830 +int grsec_enable_forkfail;
74831 +int grsec_enable_audit_ptrace;
74832 +int grsec_enable_time;
74833 +int grsec_enable_group;
74834 +kgid_t grsec_audit_gid;
74835 +int grsec_enable_chdir;
74836 +int grsec_enable_mount;
74837 +int grsec_enable_rofs;
74838 +int grsec_deny_new_usb;
74839 +int grsec_enable_chroot_findtask;
74840 +int grsec_enable_chroot_mount;
74841 +int grsec_enable_chroot_shmat;
74842 +int grsec_enable_chroot_fchdir;
74843 +int grsec_enable_chroot_double;
74844 +int grsec_enable_chroot_pivot;
74845 +int grsec_enable_chroot_chdir;
74846 +int grsec_enable_chroot_chmod;
74847 +int grsec_enable_chroot_mknod;
74848 +int grsec_enable_chroot_nice;
74849 +int grsec_enable_chroot_execlog;
74850 +int grsec_enable_chroot_caps;
74851 +int grsec_enable_chroot_sysctl;
74852 +int grsec_enable_chroot_unix;
74853 +int grsec_enable_tpe;
74854 +kgid_t grsec_tpe_gid;
74855 +int grsec_enable_blackhole;
74856 +#ifdef CONFIG_IPV6_MODULE
74857 +EXPORT_SYMBOL_GPL(grsec_enable_blackhole);
74858 +#endif
74859 +int grsec_lastack_retries;
74860 +int grsec_enable_tpe_all;
74861 +int grsec_enable_tpe_invert;
74862 +int grsec_enable_socket_all;
74863 +kgid_t grsec_socket_all_gid;
74864 +int grsec_enable_socket_client;
74865 +kgid_t grsec_socket_client_gid;
74866 +int grsec_enable_socket_server;
74867 +kgid_t grsec_socket_server_gid;
74868 +int grsec_resource_logging;
74869 +int grsec_disable_privio;
74870 +int grsec_enable_log_rwxmaps;
74871 +int grsec_lock;
74872 +
74873 +DEFINE_SPINLOCK(grsec_alert_lock);
74874 +unsigned long grsec_alert_wtime = 0;
74875 +unsigned long grsec_alert_fyet = 0;
74876 +
74877 +DEFINE_SPINLOCK(grsec_audit_lock);
74878 +
74879 +DEFINE_RWLOCK(grsec_exec_file_lock);
74880 +
74881 +char *gr_shared_page[4];
74882 +
74883 +char *gr_alert_log_fmt;
74884 +char *gr_audit_log_fmt;
74885 +char *gr_alert_log_buf;
74886 +char *gr_audit_log_buf;
74887 +
74888 +void __init
74889 +grsecurity_init(void)
74890 +{
74891 + int j;
74892 + /* create the per-cpu shared pages */
74893 +
74894 +#ifdef CONFIG_X86
74895 + memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
74896 +#endif
74897 +
74898 + for (j = 0; j < 4; j++) {
74899 + gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
74900 + if (gr_shared_page[j] == NULL) {
74901 + panic("Unable to allocate grsecurity shared page");
74902 + return;
74903 + }
74904 + }
74905 +
74906 + /* allocate log buffers */
74907 + gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
74908 + if (!gr_alert_log_fmt) {
74909 + panic("Unable to allocate grsecurity alert log format buffer");
74910 + return;
74911 + }
74912 + gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
74913 + if (!gr_audit_log_fmt) {
74914 + panic("Unable to allocate grsecurity audit log format buffer");
74915 + return;
74916 + }
74917 + gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
74918 + if (!gr_alert_log_buf) {
74919 + panic("Unable to allocate grsecurity alert log buffer");
74920 + return;
74921 + }
74922 + gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
74923 + if (!gr_audit_log_buf) {
74924 + panic("Unable to allocate grsecurity audit log buffer");
74925 + return;
74926 + }
74927 +
74928 +#ifdef CONFIG_GRKERNSEC_IO
74929 +#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
74930 + grsec_disable_privio = 1;
74931 +#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
74932 + grsec_disable_privio = 1;
74933 +#else
74934 + grsec_disable_privio = 0;
74935 +#endif
74936 +#endif
74937 +
74938 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
74939 + /* for backward compatibility, tpe_invert always defaults to on if
74940 + enabled in the kernel
74941 + */
74942 + grsec_enable_tpe_invert = 1;
74943 +#endif
74944 +
74945 +#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
74946 +#ifndef CONFIG_GRKERNSEC_SYSCTL
74947 + grsec_lock = 1;
74948 +#endif
74949 +
74950 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
74951 + grsec_enable_log_rwxmaps = 1;
74952 +#endif
74953 +#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
74954 + grsec_enable_group = 1;
74955 + grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
74956 +#endif
74957 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
74958 + grsec_enable_ptrace_readexec = 1;
74959 +#endif
74960 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
74961 + grsec_enable_chdir = 1;
74962 +#endif
74963 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
74964 + grsec_enable_harden_ptrace = 1;
74965 +#endif
74966 +#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
74967 + grsec_enable_harden_ipc = 1;
74968 +#endif
74969 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
74970 + grsec_enable_mount = 1;
74971 +#endif
74972 +#ifdef CONFIG_GRKERNSEC_LINK
74973 + grsec_enable_link = 1;
74974 +#endif
74975 +#ifdef CONFIG_GRKERNSEC_BRUTE
74976 + grsec_enable_brute = 1;
74977 +#endif
74978 +#ifdef CONFIG_GRKERNSEC_DMESG
74979 + grsec_enable_dmesg = 1;
74980 +#endif
74981 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
74982 + grsec_enable_blackhole = 1;
74983 + grsec_lastack_retries = 4;
74984 +#endif
74985 +#ifdef CONFIG_GRKERNSEC_FIFO
74986 + grsec_enable_fifo = 1;
74987 +#endif
74988 +#ifdef CONFIG_GRKERNSEC_EXECLOG
74989 + grsec_enable_execlog = 1;
74990 +#endif
74991 +#ifdef CONFIG_GRKERNSEC_SETXID
74992 + grsec_enable_setxid = 1;
74993 +#endif
74994 +#ifdef CONFIG_GRKERNSEC_SIGNAL
74995 + grsec_enable_signal = 1;
74996 +#endif
74997 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
74998 + grsec_enable_forkfail = 1;
74999 +#endif
75000 +#ifdef CONFIG_GRKERNSEC_TIME
75001 + grsec_enable_time = 1;
75002 +#endif
75003 +#ifdef CONFIG_GRKERNSEC_RESLOG
75004 + grsec_resource_logging = 1;
75005 +#endif
75006 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
75007 + grsec_enable_chroot_findtask = 1;
75008 +#endif
75009 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
75010 + grsec_enable_chroot_unix = 1;
75011 +#endif
75012 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
75013 + grsec_enable_chroot_mount = 1;
75014 +#endif
75015 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
75016 + grsec_enable_chroot_fchdir = 1;
75017 +#endif
75018 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
75019 + grsec_enable_chroot_shmat = 1;
75020 +#endif
75021 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
75022 + grsec_enable_audit_ptrace = 1;
75023 +#endif
75024 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
75025 + grsec_enable_chroot_double = 1;
75026 +#endif
75027 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
75028 + grsec_enable_chroot_pivot = 1;
75029 +#endif
75030 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
75031 + grsec_enable_chroot_chdir = 1;
75032 +#endif
75033 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
75034 + grsec_enable_chroot_chmod = 1;
75035 +#endif
75036 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
75037 + grsec_enable_chroot_mknod = 1;
75038 +#endif
75039 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
75040 + grsec_enable_chroot_nice = 1;
75041 +#endif
75042 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
75043 + grsec_enable_chroot_execlog = 1;
75044 +#endif
75045 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
75046 + grsec_enable_chroot_caps = 1;
75047 +#endif
75048 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
75049 + grsec_enable_chroot_sysctl = 1;
75050 +#endif
75051 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
75052 + grsec_enable_symlinkown = 1;
75053 + grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
75054 +#endif
75055 +#ifdef CONFIG_GRKERNSEC_TPE
75056 + grsec_enable_tpe = 1;
75057 + grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
75058 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
75059 + grsec_enable_tpe_all = 1;
75060 +#endif
75061 +#endif
75062 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
75063 + grsec_enable_socket_all = 1;
75064 + grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
75065 +#endif
75066 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
75067 + grsec_enable_socket_client = 1;
75068 + grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
75069 +#endif
75070 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
75071 + grsec_enable_socket_server = 1;
75072 + grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
75073 +#endif
75074 +#endif
75075 +#ifdef CONFIG_GRKERNSEC_DENYUSB_FORCE
75076 + grsec_deny_new_usb = 1;
75077 +#endif
75078 +
75079 + return;
75080 +}
75081 diff --git a/grsecurity/grsec_ipc.c b/grsecurity/grsec_ipc.c
75082 new file mode 100644
75083 index 0000000..1773300
75084 --- /dev/null
75085 +++ b/grsecurity/grsec_ipc.c
75086 @@ -0,0 +1,48 @@
75087 +#include <linux/kernel.h>
75088 +#include <linux/mm.h>
75089 +#include <linux/sched.h>
75090 +#include <linux/file.h>
75091 +#include <linux/ipc.h>
75092 +#include <linux/ipc_namespace.h>
75093 +#include <linux/grsecurity.h>
75094 +#include <linux/grinternal.h>
75095 +
75096 +int
75097 +gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode)
75098 +{
75099 +#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
75100 + int write;
75101 + int orig_granted_mode;
75102 + kuid_t euid;
75103 + kgid_t egid;
75104 +
75105 + if (!grsec_enable_harden_ipc)
75106 + return 1;
75107 +
75108 + euid = current_euid();
75109 + egid = current_egid();
75110 +
75111 + write = requested_mode & 00002;
75112 + orig_granted_mode = ipcp->mode;
75113 +
75114 + if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid))
75115 + orig_granted_mode >>= 6;
75116 + else {
75117 + /* if likely wrong permissions, lock to user */
75118 + if (orig_granted_mode & 0007)
75119 + orig_granted_mode = 0;
75120 + /* otherwise do a egid-only check */
75121 + else if (gid_eq(egid, ipcp->cgid) || gid_eq(egid, ipcp->gid))
75122 + orig_granted_mode >>= 3;
75123 + /* otherwise, no access */
75124 + else
75125 + orig_granted_mode = 0;
75126 + }
75127 + if (!(requested_mode & ~granted_mode & 0007) && (requested_mode & ~orig_granted_mode & 0007) &&
75128 + !ns_capable_nolog(ns->user_ns, CAP_IPC_OWNER)) {
75129 + gr_log_str_int(GR_DONT_AUDIT, GR_IPC_DENIED_MSG, write ? "write" : "read", GR_GLOBAL_UID(ipcp->cuid));
75130 + return 0;
75131 + }
75132 +#endif
75133 + return 1;
75134 +}
75135 diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
75136 new file mode 100644
75137 index 0000000..5e05e20
75138 --- /dev/null
75139 +++ b/grsecurity/grsec_link.c
75140 @@ -0,0 +1,58 @@
75141 +#include <linux/kernel.h>
75142 +#include <linux/sched.h>
75143 +#include <linux/fs.h>
75144 +#include <linux/file.h>
75145 +#include <linux/grinternal.h>
75146 +
75147 +int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
75148 +{
75149 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
75150 + const struct inode *link_inode = link->dentry->d_inode;
75151 +
75152 + if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
75153 + /* ignore root-owned links, e.g. /proc/self */
75154 + gr_is_global_nonroot(link_inode->i_uid) && target &&
75155 + !uid_eq(link_inode->i_uid, target->i_uid)) {
75156 + gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
75157 + return 1;
75158 + }
75159 +#endif
75160 + return 0;
75161 +}
75162 +
75163 +int
75164 +gr_handle_follow_link(const struct inode *parent,
75165 + const struct inode *inode,
75166 + const struct dentry *dentry, const struct vfsmount *mnt)
75167 +{
75168 +#ifdef CONFIG_GRKERNSEC_LINK
75169 + const struct cred *cred = current_cred();
75170 +
75171 + if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
75172 + (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
75173 + (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
75174 + gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
75175 + return -EACCES;
75176 + }
75177 +#endif
75178 + return 0;
75179 +}
75180 +
75181 +int
75182 +gr_handle_hardlink(const struct dentry *dentry,
75183 + const struct vfsmount *mnt,
75184 + struct inode *inode, const int mode, const struct filename *to)
75185 +{
75186 +#ifdef CONFIG_GRKERNSEC_LINK
75187 + const struct cred *cred = current_cred();
75188 +
75189 + if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
75190 + (!S_ISREG(mode) || is_privileged_binary(dentry) ||
75191 + (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
75192 + !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
75193 + gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to->name);
75194 + return -EPERM;
75195 + }
75196 +#endif
75197 + return 0;
75198 +}
75199 diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
75200 new file mode 100644
75201 index 0000000..dbe0a6b
75202 --- /dev/null
75203 +++ b/grsecurity/grsec_log.c
75204 @@ -0,0 +1,341 @@
75205 +#include <linux/kernel.h>
75206 +#include <linux/sched.h>
75207 +#include <linux/file.h>
75208 +#include <linux/tty.h>
75209 +#include <linux/fs.h>
75210 +#include <linux/mm.h>
75211 +#include <linux/grinternal.h>
75212 +
75213 +#ifdef CONFIG_TREE_PREEMPT_RCU
75214 +#define DISABLE_PREEMPT() preempt_disable()
75215 +#define ENABLE_PREEMPT() preempt_enable()
75216 +#else
75217 +#define DISABLE_PREEMPT()
75218 +#define ENABLE_PREEMPT()
75219 +#endif
75220 +
75221 +#define BEGIN_LOCKS(x) \
75222 + DISABLE_PREEMPT(); \
75223 + rcu_read_lock(); \
75224 + read_lock(&tasklist_lock); \
75225 + read_lock(&grsec_exec_file_lock); \
75226 + if (x != GR_DO_AUDIT) \
75227 + spin_lock(&grsec_alert_lock); \
75228 + else \
75229 + spin_lock(&grsec_audit_lock)
75230 +
75231 +#define END_LOCKS(x) \
75232 + if (x != GR_DO_AUDIT) \
75233 + spin_unlock(&grsec_alert_lock); \
75234 + else \
75235 + spin_unlock(&grsec_audit_lock); \
75236 + read_unlock(&grsec_exec_file_lock); \
75237 + read_unlock(&tasklist_lock); \
75238 + rcu_read_unlock(); \
75239 + ENABLE_PREEMPT(); \
75240 + if (x == GR_DONT_AUDIT) \
75241 + gr_handle_alertkill(current)
75242 +
75243 +enum {
75244 + FLOODING,
75245 + NO_FLOODING
75246 +};
75247 +
75248 +extern char *gr_alert_log_fmt;
75249 +extern char *gr_audit_log_fmt;
75250 +extern char *gr_alert_log_buf;
75251 +extern char *gr_audit_log_buf;
75252 +
75253 +static int gr_log_start(int audit)
75254 +{
75255 + char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
75256 + char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
75257 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
75258 +#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
75259 + unsigned long curr_secs = get_seconds();
75260 +
75261 + if (audit == GR_DO_AUDIT)
75262 + goto set_fmt;
75263 +
75264 + if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
75265 + grsec_alert_wtime = curr_secs;
75266 + grsec_alert_fyet = 0;
75267 + } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
75268 + && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
75269 + grsec_alert_fyet++;
75270 + } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
75271 + grsec_alert_wtime = curr_secs;
75272 + grsec_alert_fyet++;
75273 + printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
75274 + return FLOODING;
75275 + }
75276 + else return FLOODING;
75277 +
75278 +set_fmt:
75279 +#endif
75280 + memset(buf, 0, PAGE_SIZE);
75281 + if (current->signal->curr_ip && gr_acl_is_enabled()) {
75282 + sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
75283 + snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
75284 + } else if (current->signal->curr_ip) {
75285 + sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
75286 + snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
75287 + } else if (gr_acl_is_enabled()) {
75288 + sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
75289 + snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
75290 + } else {
75291 + sprintf(fmt, "%s%s", loglevel, "grsec: ");
75292 + strcpy(buf, fmt);
75293 + }
75294 +
75295 + return NO_FLOODING;
75296 +}
75297 +
75298 +static void gr_log_middle(int audit, const char *msg, va_list ap)
75299 + __attribute__ ((format (printf, 2, 0)));
75300 +
75301 +static void gr_log_middle(int audit, const char *msg, va_list ap)
75302 +{
75303 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
75304 + unsigned int len = strlen(buf);
75305 +
75306 + vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
75307 +
75308 + return;
75309 +}
75310 +
75311 +static void gr_log_middle_varargs(int audit, const char *msg, ...)
75312 + __attribute__ ((format (printf, 2, 3)));
75313 +
75314 +static void gr_log_middle_varargs(int audit, const char *msg, ...)
75315 +{
75316 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
75317 + unsigned int len = strlen(buf);
75318 + va_list ap;
75319 +
75320 + va_start(ap, msg);
75321 + vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
75322 + va_end(ap);
75323 +
75324 + return;
75325 +}
75326 +
75327 +static void gr_log_end(int audit, int append_default)
75328 +{
75329 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
75330 + if (append_default) {
75331 + struct task_struct *task = current;
75332 + struct task_struct *parent = task->real_parent;
75333 + const struct cred *cred = __task_cred(task);
75334 + const struct cred *pcred = __task_cred(parent);
75335 + unsigned int len = strlen(buf);
75336 +
75337 + snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
75338 + }
75339 +
75340 + printk("%s\n", buf);
75341 +
75342 + return;
75343 +}
75344 +
75345 +void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
75346 +{
75347 + int logtype;
75348 + char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
75349 + char *str1 = NULL, *str2 = NULL, *str3 = NULL;
75350 + void *voidptr = NULL;
75351 + int num1 = 0, num2 = 0;
75352 + unsigned long ulong1 = 0, ulong2 = 0;
75353 + struct dentry *dentry = NULL;
75354 + struct vfsmount *mnt = NULL;
75355 + struct file *file = NULL;
75356 + struct task_struct *task = NULL;
75357 + struct vm_area_struct *vma = NULL;
75358 + const struct cred *cred, *pcred;
75359 + va_list ap;
75360 +
75361 + BEGIN_LOCKS(audit);
75362 + logtype = gr_log_start(audit);
75363 + if (logtype == FLOODING) {
75364 + END_LOCKS(audit);
75365 + return;
75366 + }
75367 + va_start(ap, argtypes);
75368 + switch (argtypes) {
75369 + case GR_TTYSNIFF:
75370 + task = va_arg(ap, struct task_struct *);
75371 + gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task_pid_nr(task), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent));
75372 + break;
75373 + case GR_SYSCTL_HIDDEN:
75374 + str1 = va_arg(ap, char *);
75375 + gr_log_middle_varargs(audit, msg, result, str1);
75376 + break;
75377 + case GR_RBAC:
75378 + dentry = va_arg(ap, struct dentry *);
75379 + mnt = va_arg(ap, struct vfsmount *);
75380 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
75381 + break;
75382 + case GR_RBAC_STR:
75383 + dentry = va_arg(ap, struct dentry *);
75384 + mnt = va_arg(ap, struct vfsmount *);
75385 + str1 = va_arg(ap, char *);
75386 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
75387 + break;
75388 + case GR_STR_RBAC:
75389 + str1 = va_arg(ap, char *);
75390 + dentry = va_arg(ap, struct dentry *);
75391 + mnt = va_arg(ap, struct vfsmount *);
75392 + gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
75393 + break;
75394 + case GR_RBAC_MODE2:
75395 + dentry = va_arg(ap, struct dentry *);
75396 + mnt = va_arg(ap, struct vfsmount *);
75397 + str1 = va_arg(ap, char *);
75398 + str2 = va_arg(ap, char *);
75399 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
75400 + break;
75401 + case GR_RBAC_MODE3:
75402 + dentry = va_arg(ap, struct dentry *);
75403 + mnt = va_arg(ap, struct vfsmount *);
75404 + str1 = va_arg(ap, char *);
75405 + str2 = va_arg(ap, char *);
75406 + str3 = va_arg(ap, char *);
75407 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
75408 + break;
75409 + case GR_FILENAME:
75410 + dentry = va_arg(ap, struct dentry *);
75411 + mnt = va_arg(ap, struct vfsmount *);
75412 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
75413 + break;
75414 + case GR_STR_FILENAME:
75415 + str1 = va_arg(ap, char *);
75416 + dentry = va_arg(ap, struct dentry *);
75417 + mnt = va_arg(ap, struct vfsmount *);
75418 + gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
75419 + break;
75420 + case GR_FILENAME_STR:
75421 + dentry = va_arg(ap, struct dentry *);
75422 + mnt = va_arg(ap, struct vfsmount *);
75423 + str1 = va_arg(ap, char *);
75424 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
75425 + break;
75426 + case GR_FILENAME_TWO_INT:
75427 + dentry = va_arg(ap, struct dentry *);
75428 + mnt = va_arg(ap, struct vfsmount *);
75429 + num1 = va_arg(ap, int);
75430 + num2 = va_arg(ap, int);
75431 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
75432 + break;
75433 + case GR_FILENAME_TWO_INT_STR:
75434 + dentry = va_arg(ap, struct dentry *);
75435 + mnt = va_arg(ap, struct vfsmount *);
75436 + num1 = va_arg(ap, int);
75437 + num2 = va_arg(ap, int);
75438 + str1 = va_arg(ap, char *);
75439 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
75440 + break;
75441 + case GR_TEXTREL:
75442 + file = va_arg(ap, struct file *);
75443 + ulong1 = va_arg(ap, unsigned long);
75444 + ulong2 = va_arg(ap, unsigned long);
75445 + gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
75446 + break;
75447 + case GR_PTRACE:
75448 + task = va_arg(ap, struct task_struct *);
75449 + gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task_pid_nr(task));
75450 + break;
75451 + case GR_RESOURCE:
75452 + task = va_arg(ap, struct task_struct *);
75453 + cred = __task_cred(task);
75454 + pcred = __task_cred(task->real_parent);
75455 + ulong1 = va_arg(ap, unsigned long);
75456 + str1 = va_arg(ap, char *);
75457 + ulong2 = va_arg(ap, unsigned long);
75458 + gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
75459 + break;
75460 + case GR_CAP:
75461 + task = va_arg(ap, struct task_struct *);
75462 + cred = __task_cred(task);
75463 + pcred = __task_cred(task->real_parent);
75464 + str1 = va_arg(ap, char *);
75465 + gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
75466 + break;
75467 + case GR_SIG:
75468 + str1 = va_arg(ap, char *);
75469 + voidptr = va_arg(ap, void *);
75470 + gr_log_middle_varargs(audit, msg, str1, voidptr);
75471 + break;
75472 + case GR_SIG2:
75473 + task = va_arg(ap, struct task_struct *);
75474 + cred = __task_cred(task);
75475 + pcred = __task_cred(task->real_parent);
75476 + num1 = va_arg(ap, int);
75477 + gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
75478 + break;
75479 + case GR_CRASH1:
75480 + task = va_arg(ap, struct task_struct *);
75481 + cred = __task_cred(task);
75482 + pcred = __task_cred(task->real_parent);
75483 + ulong1 = va_arg(ap, unsigned long);
75484 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), GR_GLOBAL_UID(cred->uid), ulong1);
75485 + break;
75486 + case GR_CRASH2:
75487 + task = va_arg(ap, struct task_struct *);
75488 + cred = __task_cred(task);
75489 + pcred = __task_cred(task->real_parent);
75490 + ulong1 = va_arg(ap, unsigned long);
75491 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), ulong1);
75492 + break;
75493 + case GR_RWXMAP:
75494 + file = va_arg(ap, struct file *);
75495 + gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
75496 + break;
75497 + case GR_RWXMAPVMA:
75498 + vma = va_arg(ap, struct vm_area_struct *);
75499 + if (vma->vm_file)
75500 + str1 = gr_to_filename(vma->vm_file->f_path.dentry, vma->vm_file->f_path.mnt);
75501 + else if (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
75502 + str1 = "<stack>";
75503 + else if (vma->vm_start <= current->mm->brk &&
75504 + vma->vm_end >= current->mm->start_brk)
75505 + str1 = "<heap>";
75506 + else
75507 + str1 = "<anonymous mapping>";
75508 + gr_log_middle_varargs(audit, msg, str1);
75509 + break;
75510 + case GR_PSACCT:
75511 + {
75512 + unsigned int wday, cday;
75513 + __u8 whr, chr;
75514 + __u8 wmin, cmin;
75515 + __u8 wsec, csec;
75516 + char cur_tty[64] = { 0 };
75517 + char parent_tty[64] = { 0 };
75518 +
75519 + task = va_arg(ap, struct task_struct *);
75520 + wday = va_arg(ap, unsigned int);
75521 + cday = va_arg(ap, unsigned int);
75522 + whr = va_arg(ap, int);
75523 + chr = va_arg(ap, int);
75524 + wmin = va_arg(ap, int);
75525 + cmin = va_arg(ap, int);
75526 + wsec = va_arg(ap, int);
75527 + csec = va_arg(ap, int);
75528 + ulong1 = va_arg(ap, unsigned long);
75529 + cred = __task_cred(task);
75530 + pcred = __task_cred(task->real_parent);
75531 +
75532 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
75533 + }
75534 + break;
75535 + default:
75536 + gr_log_middle(audit, msg, ap);
75537 + }
75538 + va_end(ap);
75539 + // these don't need DEFAULTSECARGS printed on the end
75540 + if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
75541 + gr_log_end(audit, 0);
75542 + else
75543 + gr_log_end(audit, 1);
75544 + END_LOCKS(audit);
75545 +}
75546 diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
75547 new file mode 100644
75548 index 0000000..0e39d8c
75549 --- /dev/null
75550 +++ b/grsecurity/grsec_mem.c
75551 @@ -0,0 +1,48 @@
75552 +#include <linux/kernel.h>
75553 +#include <linux/sched.h>
75554 +#include <linux/mm.h>
75555 +#include <linux/mman.h>
75556 +#include <linux/module.h>
75557 +#include <linux/grinternal.h>
75558 +
75559 +void gr_handle_msr_write(void)
75560 +{
75561 + gr_log_noargs(GR_DONT_AUDIT, GR_MSRWRITE_MSG);
75562 + return;
75563 +}
75564 +EXPORT_SYMBOL_GPL(gr_handle_msr_write);
75565 +
75566 +void
75567 +gr_handle_ioperm(void)
75568 +{
75569 + gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
75570 + return;
75571 +}
75572 +
75573 +void
75574 +gr_handle_iopl(void)
75575 +{
75576 + gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
75577 + return;
75578 +}
75579 +
75580 +void
75581 +gr_handle_mem_readwrite(u64 from, u64 to)
75582 +{
75583 + gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
75584 + return;
75585 +}
75586 +
75587 +void
75588 +gr_handle_vm86(void)
75589 +{
75590 + gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
75591 + return;
75592 +}
75593 +
75594 +void
75595 +gr_log_badprocpid(const char *entry)
75596 +{
75597 + gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
75598 + return;
75599 +}
75600 diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
75601 new file mode 100644
75602 index 0000000..cd9e124
75603 --- /dev/null
75604 +++ b/grsecurity/grsec_mount.c
75605 @@ -0,0 +1,65 @@
75606 +#include <linux/kernel.h>
75607 +#include <linux/sched.h>
75608 +#include <linux/mount.h>
75609 +#include <linux/major.h>
75610 +#include <linux/grsecurity.h>
75611 +#include <linux/grinternal.h>
75612 +
75613 +void
75614 +gr_log_remount(const char *devname, const int retval)
75615 +{
75616 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
75617 + if (grsec_enable_mount && (retval >= 0))
75618 + gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
75619 +#endif
75620 + return;
75621 +}
75622 +
75623 +void
75624 +gr_log_unmount(const char *devname, const int retval)
75625 +{
75626 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
75627 + if (grsec_enable_mount && (retval >= 0))
75628 + gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
75629 +#endif
75630 + return;
75631 +}
75632 +
75633 +void
75634 +gr_log_mount(const char *from, const char *to, const int retval)
75635 +{
75636 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
75637 + if (grsec_enable_mount && (retval >= 0))
75638 + gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to);
75639 +#endif
75640 + return;
75641 +}
75642 +
75643 +int
75644 +gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
75645 +{
75646 +#ifdef CONFIG_GRKERNSEC_ROFS
75647 + if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
75648 + gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
75649 + return -EPERM;
75650 + } else
75651 + return 0;
75652 +#endif
75653 + return 0;
75654 +}
75655 +
75656 +int
75657 +gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
75658 +{
75659 +#ifdef CONFIG_GRKERNSEC_ROFS
75660 + struct inode *inode = dentry->d_inode;
75661 +
75662 + if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
75663 + inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR))) {
75664 + gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
75665 + return -EPERM;
75666 + } else
75667 + return 0;
75668 +#endif
75669 + return 0;
75670 +}
75671 diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
75672 new file mode 100644
75673 index 0000000..6ee9d50
75674 --- /dev/null
75675 +++ b/grsecurity/grsec_pax.c
75676 @@ -0,0 +1,45 @@
75677 +#include <linux/kernel.h>
75678 +#include <linux/sched.h>
75679 +#include <linux/mm.h>
75680 +#include <linux/file.h>
75681 +#include <linux/grinternal.h>
75682 +#include <linux/grsecurity.h>
75683 +
75684 +void
75685 +gr_log_textrel(struct vm_area_struct * vma)
75686 +{
75687 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
75688 + if (grsec_enable_log_rwxmaps)
75689 + gr_log_textrel_ulong_ulong(GR_DONT_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
75690 +#endif
75691 + return;
75692 +}
75693 +
75694 +void gr_log_ptgnustack(struct file *file)
75695 +{
75696 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
75697 + if (grsec_enable_log_rwxmaps)
75698 + gr_log_rwxmap(GR_DONT_AUDIT, GR_PTGNUSTACK_MSG, file);
75699 +#endif
75700 + return;
75701 +}
75702 +
75703 +void
75704 +gr_log_rwxmmap(struct file *file)
75705 +{
75706 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
75707 + if (grsec_enable_log_rwxmaps)
75708 + gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
75709 +#endif
75710 + return;
75711 +}
75712 +
75713 +void
75714 +gr_log_rwxmprotect(struct vm_area_struct *vma)
75715 +{
75716 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
75717 + if (grsec_enable_log_rwxmaps)
75718 + gr_log_rwxmap_vma(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, vma);
75719 +#endif
75720 + return;
75721 +}
75722 diff --git a/grsecurity/grsec_proc.c b/grsecurity/grsec_proc.c
75723 new file mode 100644
75724 index 0000000..2005a3a
75725 --- /dev/null
75726 +++ b/grsecurity/grsec_proc.c
75727 @@ -0,0 +1,20 @@
75728 +#include <linux/kernel.h>
75729 +#include <linux/sched.h>
75730 +#include <linux/grsecurity.h>
75731 +#include <linux/grinternal.h>
75732 +
75733 +int gr_proc_is_restricted(void)
75734 +{
75735 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
75736 + const struct cred *cred = current_cred();
75737 +#endif
75738 +
75739 +#ifdef CONFIG_GRKERNSEC_PROC_USER
75740 + if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
75741 + return -EACCES;
75742 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
75743 + if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
75744 + return -EACCES;
75745 +#endif
75746 + return 0;
75747 +}
75748 diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
75749 new file mode 100644
75750 index 0000000..f7f29aa
75751 --- /dev/null
75752 +++ b/grsecurity/grsec_ptrace.c
75753 @@ -0,0 +1,30 @@
75754 +#include <linux/kernel.h>
75755 +#include <linux/sched.h>
75756 +#include <linux/grinternal.h>
75757 +#include <linux/security.h>
75758 +
75759 +void
75760 +gr_audit_ptrace(struct task_struct *task)
75761 +{
75762 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
75763 + if (grsec_enable_audit_ptrace)
75764 + gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
75765 +#endif
75766 + return;
75767 +}
75768 +
75769 +int
75770 +gr_ptrace_readexec(struct file *file, int unsafe_flags)
75771 +{
75772 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
75773 + const struct dentry *dentry = file->f_path.dentry;
75774 + const struct vfsmount *mnt = file->f_path.mnt;
75775 +
75776 + if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) &&
75777 + (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
75778 + gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
75779 + return -EACCES;
75780 + }
75781 +#endif
75782 + return 0;
75783 +}
75784 diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
75785 new file mode 100644
75786 index 0000000..3860c7e
75787 --- /dev/null
75788 +++ b/grsecurity/grsec_sig.c
75789 @@ -0,0 +1,236 @@
75790 +#include <linux/kernel.h>
75791 +#include <linux/sched.h>
75792 +#include <linux/fs.h>
75793 +#include <linux/delay.h>
75794 +#include <linux/grsecurity.h>
75795 +#include <linux/grinternal.h>
75796 +#include <linux/hardirq.h>
75797 +
75798 +char *signames[] = {
75799 + [SIGSEGV] = "Segmentation fault",
75800 + [SIGILL] = "Illegal instruction",
75801 + [SIGABRT] = "Abort",
75802 + [SIGBUS] = "Invalid alignment/Bus error"
75803 +};
75804 +
75805 +void
75806 +gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
75807 +{
75808 +#ifdef CONFIG_GRKERNSEC_SIGNAL
75809 + if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
75810 + (sig == SIGABRT) || (sig == SIGBUS))) {
75811 + if (task_pid_nr(t) == task_pid_nr(current)) {
75812 + gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
75813 + } else {
75814 + gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
75815 + }
75816 + }
75817 +#endif
75818 + return;
75819 +}
75820 +
75821 +int
75822 +gr_handle_signal(const struct task_struct *p, const int sig)
75823 +{
75824 +#ifdef CONFIG_GRKERNSEC
75825 + /* ignore the 0 signal for protected task checks */
75826 + if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
75827 + gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
75828 + return -EPERM;
75829 + } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
75830 + return -EPERM;
75831 + }
75832 +#endif
75833 + return 0;
75834 +}
75835 +
75836 +#ifdef CONFIG_GRKERNSEC
75837 +extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
75838 +
75839 +int gr_fake_force_sig(int sig, struct task_struct *t)
75840 +{
75841 + unsigned long int flags;
75842 + int ret, blocked, ignored;
75843 + struct k_sigaction *action;
75844 +
75845 + spin_lock_irqsave(&t->sighand->siglock, flags);
75846 + action = &t->sighand->action[sig-1];
75847 + ignored = action->sa.sa_handler == SIG_IGN;
75848 + blocked = sigismember(&t->blocked, sig);
75849 + if (blocked || ignored) {
75850 + action->sa.sa_handler = SIG_DFL;
75851 + if (blocked) {
75852 + sigdelset(&t->blocked, sig);
75853 + recalc_sigpending_and_wake(t);
75854 + }
75855 + }
75856 + if (action->sa.sa_handler == SIG_DFL)
75857 + t->signal->flags &= ~SIGNAL_UNKILLABLE;
75858 + ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
75859 +
75860 + spin_unlock_irqrestore(&t->sighand->siglock, flags);
75861 +
75862 + return ret;
75863 +}
75864 +#endif
75865 +
75866 +#define GR_USER_BAN_TIME (15 * 60)
75867 +#define GR_DAEMON_BRUTE_TIME (30 * 60)
75868 +
75869 +void gr_handle_brute_attach(int dumpable)
75870 +{
75871 +#ifdef CONFIG_GRKERNSEC_BRUTE
75872 + struct task_struct *p = current;
75873 + kuid_t uid = GLOBAL_ROOT_UID;
75874 + int daemon = 0;
75875 +
75876 + if (!grsec_enable_brute)
75877 + return;
75878 +
75879 + rcu_read_lock();
75880 + read_lock(&tasklist_lock);
75881 + read_lock(&grsec_exec_file_lock);
75882 + if (p->real_parent && gr_is_same_file(p->real_parent->exec_file, p->exec_file)) {
75883 + p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
75884 + p->real_parent->brute = 1;
75885 + daemon = 1;
75886 + } else {
75887 + const struct cred *cred = __task_cred(p), *cred2;
75888 + struct task_struct *tsk, *tsk2;
75889 +
75890 + if (dumpable != SUID_DUMP_USER && gr_is_global_nonroot(cred->uid)) {
75891 + struct user_struct *user;
75892 +
75893 + uid = cred->uid;
75894 +
75895 + /* this is put upon execution past expiration */
75896 + user = find_user(uid);
75897 + if (user == NULL)
75898 + goto unlock;
75899 + user->suid_banned = 1;
75900 + user->suid_ban_expires = get_seconds() + GR_USER_BAN_TIME;
75901 + if (user->suid_ban_expires == ~0UL)
75902 + user->suid_ban_expires--;
75903 +
75904 + /* only kill other threads of the same binary, from the same user */
75905 + do_each_thread(tsk2, tsk) {
75906 + cred2 = __task_cred(tsk);
75907 + if (tsk != p && uid_eq(cred2->uid, uid) && gr_is_same_file(tsk->exec_file, p->exec_file))
75908 + gr_fake_force_sig(SIGKILL, tsk);
75909 + } while_each_thread(tsk2, tsk);
75910 + }
75911 + }
75912 +unlock:
75913 + read_unlock(&grsec_exec_file_lock);
75914 + read_unlock(&tasklist_lock);
75915 + rcu_read_unlock();
75916 +
75917 + if (gr_is_global_nonroot(uid))
75918 + gr_log_fs_int2(GR_DONT_AUDIT, GR_BRUTE_SUID_MSG, p->exec_file->f_path.dentry, p->exec_file->f_path.mnt, GR_GLOBAL_UID(uid), GR_USER_BAN_TIME / 60);
75919 + else if (daemon)
75920 + gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
75921 +
75922 +#endif
75923 + return;
75924 +}
75925 +
75926 +void gr_handle_brute_check(void)
75927 +{
75928 +#ifdef CONFIG_GRKERNSEC_BRUTE
75929 + struct task_struct *p = current;
75930 +
75931 + if (unlikely(p->brute)) {
75932 + if (!grsec_enable_brute)
75933 + p->brute = 0;
75934 + else if (time_before(get_seconds(), p->brute_expires))
75935 + msleep(30 * 1000);
75936 + }
75937 +#endif
75938 + return;
75939 +}
75940 +
75941 +void gr_handle_kernel_exploit(void)
75942 +{
75943 +#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
75944 + const struct cred *cred;
75945 + struct task_struct *tsk, *tsk2;
75946 + struct user_struct *user;
75947 + kuid_t uid;
75948 +
75949 + if (in_irq() || in_serving_softirq() || in_nmi())
75950 + panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
75951 +
75952 + uid = current_uid();
75953 +
75954 + if (gr_is_global_root(uid))
75955 + panic("grsec: halting the system due to suspicious kernel crash caused by root");
75956 + else {
75957 + /* kill all the processes of this user, hold a reference
75958 + to their creds struct, and prevent them from creating
75959 + another process until system reset
75960 + */
75961 + printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
75962 + GR_GLOBAL_UID(uid));
75963 + /* we intentionally leak this ref */
75964 + user = get_uid(current->cred->user);
75965 + if (user)
75966 + user->kernel_banned = 1;
75967 +
75968 + /* kill all processes of this user */
75969 + read_lock(&tasklist_lock);
75970 + do_each_thread(tsk2, tsk) {
75971 + cred = __task_cred(tsk);
75972 + if (uid_eq(cred->uid, uid))
75973 + gr_fake_force_sig(SIGKILL, tsk);
75974 + } while_each_thread(tsk2, tsk);
75975 + read_unlock(&tasklist_lock);
75976 + }
75977 +#endif
75978 +}
75979 +
75980 +#ifdef CONFIG_GRKERNSEC_BRUTE
75981 +static bool suid_ban_expired(struct user_struct *user)
75982 +{
75983 + if (user->suid_ban_expires != ~0UL && time_after_eq(get_seconds(), user->suid_ban_expires)) {
75984 + user->suid_banned = 0;
75985 + user->suid_ban_expires = 0;
75986 + free_uid(user);
75987 + return true;
75988 + }
75989 +
75990 + return false;
75991 +}
75992 +#endif
75993 +
75994 +int gr_process_kernel_exec_ban(void)
75995 +{
75996 +#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
75997 + if (unlikely(current->cred->user->kernel_banned))
75998 + return -EPERM;
75999 +#endif
76000 + return 0;
76001 +}
76002 +
76003 +int gr_process_kernel_setuid_ban(struct user_struct *user)
76004 +{
76005 +#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
76006 + if (unlikely(user->kernel_banned))
76007 + gr_fake_force_sig(SIGKILL, current);
76008 +#endif
76009 + return 0;
76010 +}
76011 +
76012 +int gr_process_suid_exec_ban(const struct linux_binprm *bprm)
76013 +{
76014 +#ifdef CONFIG_GRKERNSEC_BRUTE
76015 + struct user_struct *user = current->cred->user;
76016 + if (unlikely(user->suid_banned)) {
76017 + if (suid_ban_expired(user))
76018 + return 0;
76019 + /* disallow execution of suid binaries only */
76020 + else if (!uid_eq(bprm->cred->euid, current->cred->uid))
76021 + return -EPERM;
76022 + }
76023 +#endif
76024 + return 0;
76025 +}
76026 diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
76027 new file mode 100644
76028 index 0000000..c0aef3a
76029 --- /dev/null
76030 +++ b/grsecurity/grsec_sock.c
76031 @@ -0,0 +1,244 @@
76032 +#include <linux/kernel.h>
76033 +#include <linux/module.h>
76034 +#include <linux/sched.h>
76035 +#include <linux/file.h>
76036 +#include <linux/net.h>
76037 +#include <linux/in.h>
76038 +#include <linux/ip.h>
76039 +#include <net/sock.h>
76040 +#include <net/inet_sock.h>
76041 +#include <linux/grsecurity.h>
76042 +#include <linux/grinternal.h>
76043 +#include <linux/gracl.h>
76044 +
76045 +extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
76046 +extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
76047 +
76048 +EXPORT_SYMBOL_GPL(gr_search_udp_recvmsg);
76049 +EXPORT_SYMBOL_GPL(gr_search_udp_sendmsg);
76050 +
76051 +#ifdef CONFIG_UNIX_MODULE
76052 +EXPORT_SYMBOL_GPL(gr_acl_handle_unix);
76053 +EXPORT_SYMBOL_GPL(gr_acl_handle_mknod);
76054 +EXPORT_SYMBOL_GPL(gr_handle_chroot_unix);
76055 +EXPORT_SYMBOL_GPL(gr_handle_create);
76056 +#endif
76057 +
76058 +#ifdef CONFIG_GRKERNSEC
76059 +#define gr_conn_table_size 32749
76060 +struct conn_table_entry {
76061 + struct conn_table_entry *next;
76062 + struct signal_struct *sig;
76063 +};
76064 +
76065 +struct conn_table_entry *gr_conn_table[gr_conn_table_size];
76066 +DEFINE_SPINLOCK(gr_conn_table_lock);
76067 +
76068 +extern const char * gr_socktype_to_name(unsigned char type);
76069 +extern const char * gr_proto_to_name(unsigned char proto);
76070 +extern const char * gr_sockfamily_to_name(unsigned char family);
76071 +
76072 +static __inline__ int
76073 +conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
76074 +{
76075 + return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
76076 +}
76077 +
76078 +static __inline__ int
76079 +conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
76080 + __u16 sport, __u16 dport)
76081 +{
76082 + if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
76083 + sig->gr_sport == sport && sig->gr_dport == dport))
76084 + return 1;
76085 + else
76086 + return 0;
76087 +}
76088 +
76089 +static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
76090 +{
76091 + struct conn_table_entry **match;
76092 + unsigned int index;
76093 +
76094 + index = conn_hash(sig->gr_saddr, sig->gr_daddr,
76095 + sig->gr_sport, sig->gr_dport,
76096 + gr_conn_table_size);
76097 +
76098 + newent->sig = sig;
76099 +
76100 + match = &gr_conn_table[index];
76101 + newent->next = *match;
76102 + *match = newent;
76103 +
76104 + return;
76105 +}
76106 +
76107 +static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
76108 +{
76109 + struct conn_table_entry *match, *last = NULL;
76110 + unsigned int index;
76111 +
76112 + index = conn_hash(sig->gr_saddr, sig->gr_daddr,
76113 + sig->gr_sport, sig->gr_dport,
76114 + gr_conn_table_size);
76115 +
76116 + match = gr_conn_table[index];
76117 + while (match && !conn_match(match->sig,
76118 + sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
76119 + sig->gr_dport)) {
76120 + last = match;
76121 + match = match->next;
76122 + }
76123 +
76124 + if (match) {
76125 + if (last)
76126 + last->next = match->next;
76127 + else
76128 + gr_conn_table[index] = NULL;
76129 + kfree(match);
76130 + }
76131 +
76132 + return;
76133 +}
76134 +
76135 +static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
76136 + __u16 sport, __u16 dport)
76137 +{
76138 + struct conn_table_entry *match;
76139 + unsigned int index;
76140 +
76141 + index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
76142 +
76143 + match = gr_conn_table[index];
76144 + while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
76145 + match = match->next;
76146 +
76147 + if (match)
76148 + return match->sig;
76149 + else
76150 + return NULL;
76151 +}
76152 +
76153 +#endif
76154 +
76155 +void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet)
76156 +{
76157 +#ifdef CONFIG_GRKERNSEC
76158 + struct signal_struct *sig = task->signal;
76159 + struct conn_table_entry *newent;
76160 +
76161 + newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
76162 + if (newent == NULL)
76163 + return;
76164 + /* no bh lock needed since we are called with bh disabled */
76165 + spin_lock(&gr_conn_table_lock);
76166 + gr_del_task_from_ip_table_nolock(sig);
76167 + sig->gr_saddr = inet->inet_rcv_saddr;
76168 + sig->gr_daddr = inet->inet_daddr;
76169 + sig->gr_sport = inet->inet_sport;
76170 + sig->gr_dport = inet->inet_dport;
76171 + gr_add_to_task_ip_table_nolock(sig, newent);
76172 + spin_unlock(&gr_conn_table_lock);
76173 +#endif
76174 + return;
76175 +}
76176 +
76177 +void gr_del_task_from_ip_table(struct task_struct *task)
76178 +{
76179 +#ifdef CONFIG_GRKERNSEC
76180 + spin_lock_bh(&gr_conn_table_lock);
76181 + gr_del_task_from_ip_table_nolock(task->signal);
76182 + spin_unlock_bh(&gr_conn_table_lock);
76183 +#endif
76184 + return;
76185 +}
76186 +
76187 +void
76188 +gr_attach_curr_ip(const struct sock *sk)
76189 +{
76190 +#ifdef CONFIG_GRKERNSEC
76191 + struct signal_struct *p, *set;
76192 + const struct inet_sock *inet = inet_sk(sk);
76193 +
76194 + if (unlikely(sk->sk_protocol != IPPROTO_TCP))
76195 + return;
76196 +
76197 + set = current->signal;
76198 +
76199 + spin_lock_bh(&gr_conn_table_lock);
76200 + p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
76201 + inet->inet_dport, inet->inet_sport);
76202 + if (unlikely(p != NULL)) {
76203 + set->curr_ip = p->curr_ip;
76204 + set->used_accept = 1;
76205 + gr_del_task_from_ip_table_nolock(p);
76206 + spin_unlock_bh(&gr_conn_table_lock);
76207 + return;
76208 + }
76209 + spin_unlock_bh(&gr_conn_table_lock);
76210 +
76211 + set->curr_ip = inet->inet_daddr;
76212 + set->used_accept = 1;
76213 +#endif
76214 + return;
76215 +}
76216 +
76217 +int
76218 +gr_handle_sock_all(const int family, const int type, const int protocol)
76219 +{
76220 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
76221 + if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
76222 + (family != AF_UNIX)) {
76223 + if (family == AF_INET)
76224 + gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
76225 + else
76226 + gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
76227 + return -EACCES;
76228 + }
76229 +#endif
76230 + return 0;
76231 +}
76232 +
76233 +int
76234 +gr_handle_sock_server(const struct sockaddr *sck)
76235 +{
76236 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
76237 + if (grsec_enable_socket_server &&
76238 + in_group_p(grsec_socket_server_gid) &&
76239 + sck && (sck->sa_family != AF_UNIX) &&
76240 + (sck->sa_family != AF_LOCAL)) {
76241 + gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
76242 + return -EACCES;
76243 + }
76244 +#endif
76245 + return 0;
76246 +}
76247 +
76248 +int
76249 +gr_handle_sock_server_other(const struct sock *sck)
76250 +{
76251 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
76252 + if (grsec_enable_socket_server &&
76253 + in_group_p(grsec_socket_server_gid) &&
76254 + sck && (sck->sk_family != AF_UNIX) &&
76255 + (sck->sk_family != AF_LOCAL)) {
76256 + gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
76257 + return -EACCES;
76258 + }
76259 +#endif
76260 + return 0;
76261 +}
76262 +
76263 +int
76264 +gr_handle_sock_client(const struct sockaddr *sck)
76265 +{
76266 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
76267 + if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
76268 + sck && (sck->sa_family != AF_UNIX) &&
76269 + (sck->sa_family != AF_LOCAL)) {
76270 + gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
76271 + return -EACCES;
76272 + }
76273 +#endif
76274 + return 0;
76275 +}
76276 diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
76277 new file mode 100644
76278 index 0000000..8159888
76279 --- /dev/null
76280 +++ b/grsecurity/grsec_sysctl.c
76281 @@ -0,0 +1,479 @@
76282 +#include <linux/kernel.h>
76283 +#include <linux/sched.h>
76284 +#include <linux/sysctl.h>
76285 +#include <linux/grsecurity.h>
76286 +#include <linux/grinternal.h>
76287 +
76288 +int
76289 +gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
76290 +{
76291 +#ifdef CONFIG_GRKERNSEC_SYSCTL
76292 + if (dirname == NULL || name == NULL)
76293 + return 0;
76294 + if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
76295 + gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
76296 + return -EACCES;
76297 + }
76298 +#endif
76299 + return 0;
76300 +}
76301 +
76302 +#if defined(CONFIG_GRKERNSEC_ROFS) || defined(CONFIG_GRKERNSEC_DENYUSB)
76303 +static int __maybe_unused __read_only one = 1;
76304 +#endif
76305 +
76306 +#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) || \
76307 + defined(CONFIG_GRKERNSEC_DENYUSB)
76308 +struct ctl_table grsecurity_table[] = {
76309 +#ifdef CONFIG_GRKERNSEC_SYSCTL
76310 +#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
76311 +#ifdef CONFIG_GRKERNSEC_IO
76312 + {
76313 + .procname = "disable_priv_io",
76314 + .data = &grsec_disable_privio,
76315 + .maxlen = sizeof(int),
76316 + .mode = 0600,
76317 + .proc_handler = &proc_dointvec,
76318 + },
76319 +#endif
76320 +#endif
76321 +#ifdef CONFIG_GRKERNSEC_LINK
76322 + {
76323 + .procname = "linking_restrictions",
76324 + .data = &grsec_enable_link,
76325 + .maxlen = sizeof(int),
76326 + .mode = 0600,
76327 + .proc_handler = &proc_dointvec,
76328 + },
76329 +#endif
76330 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
76331 + {
76332 + .procname = "enforce_symlinksifowner",
76333 + .data = &grsec_enable_symlinkown,
76334 + .maxlen = sizeof(int),
76335 + .mode = 0600,
76336 + .proc_handler = &proc_dointvec,
76337 + },
76338 + {
76339 + .procname = "symlinkown_gid",
76340 + .data = &grsec_symlinkown_gid,
76341 + .maxlen = sizeof(int),
76342 + .mode = 0600,
76343 + .proc_handler = &proc_dointvec,
76344 + },
76345 +#endif
76346 +#ifdef CONFIG_GRKERNSEC_BRUTE
76347 + {
76348 + .procname = "deter_bruteforce",
76349 + .data = &grsec_enable_brute,
76350 + .maxlen = sizeof(int),
76351 + .mode = 0600,
76352 + .proc_handler = &proc_dointvec,
76353 + },
76354 +#endif
76355 +#ifdef CONFIG_GRKERNSEC_FIFO
76356 + {
76357 + .procname = "fifo_restrictions",
76358 + .data = &grsec_enable_fifo,
76359 + .maxlen = sizeof(int),
76360 + .mode = 0600,
76361 + .proc_handler = &proc_dointvec,
76362 + },
76363 +#endif
76364 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
76365 + {
76366 + .procname = "ptrace_readexec",
76367 + .data = &grsec_enable_ptrace_readexec,
76368 + .maxlen = sizeof(int),
76369 + .mode = 0600,
76370 + .proc_handler = &proc_dointvec,
76371 + },
76372 +#endif
76373 +#ifdef CONFIG_GRKERNSEC_SETXID
76374 + {
76375 + .procname = "consistent_setxid",
76376 + .data = &grsec_enable_setxid,
76377 + .maxlen = sizeof(int),
76378 + .mode = 0600,
76379 + .proc_handler = &proc_dointvec,
76380 + },
76381 +#endif
76382 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76383 + {
76384 + .procname = "ip_blackhole",
76385 + .data = &grsec_enable_blackhole,
76386 + .maxlen = sizeof(int),
76387 + .mode = 0600,
76388 + .proc_handler = &proc_dointvec,
76389 + },
76390 + {
76391 + .procname = "lastack_retries",
76392 + .data = &grsec_lastack_retries,
76393 + .maxlen = sizeof(int),
76394 + .mode = 0600,
76395 + .proc_handler = &proc_dointvec,
76396 + },
76397 +#endif
76398 +#ifdef CONFIG_GRKERNSEC_EXECLOG
76399 + {
76400 + .procname = "exec_logging",
76401 + .data = &grsec_enable_execlog,
76402 + .maxlen = sizeof(int),
76403 + .mode = 0600,
76404 + .proc_handler = &proc_dointvec,
76405 + },
76406 +#endif
76407 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
76408 + {
76409 + .procname = "rwxmap_logging",
76410 + .data = &grsec_enable_log_rwxmaps,
76411 + .maxlen = sizeof(int),
76412 + .mode = 0600,
76413 + .proc_handler = &proc_dointvec,
76414 + },
76415 +#endif
76416 +#ifdef CONFIG_GRKERNSEC_SIGNAL
76417 + {
76418 + .procname = "signal_logging",
76419 + .data = &grsec_enable_signal,
76420 + .maxlen = sizeof(int),
76421 + .mode = 0600,
76422 + .proc_handler = &proc_dointvec,
76423 + },
76424 +#endif
76425 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
76426 + {
76427 + .procname = "forkfail_logging",
76428 + .data = &grsec_enable_forkfail,
76429 + .maxlen = sizeof(int),
76430 + .mode = 0600,
76431 + .proc_handler = &proc_dointvec,
76432 + },
76433 +#endif
76434 +#ifdef CONFIG_GRKERNSEC_TIME
76435 + {
76436 + .procname = "timechange_logging",
76437 + .data = &grsec_enable_time,
76438 + .maxlen = sizeof(int),
76439 + .mode = 0600,
76440 + .proc_handler = &proc_dointvec,
76441 + },
76442 +#endif
76443 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
76444 + {
76445 + .procname = "chroot_deny_shmat",
76446 + .data = &grsec_enable_chroot_shmat,
76447 + .maxlen = sizeof(int),
76448 + .mode = 0600,
76449 + .proc_handler = &proc_dointvec,
76450 + },
76451 +#endif
76452 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
76453 + {
76454 + .procname = "chroot_deny_unix",
76455 + .data = &grsec_enable_chroot_unix,
76456 + .maxlen = sizeof(int),
76457 + .mode = 0600,
76458 + .proc_handler = &proc_dointvec,
76459 + },
76460 +#endif
76461 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
76462 + {
76463 + .procname = "chroot_deny_mount",
76464 + .data = &grsec_enable_chroot_mount,
76465 + .maxlen = sizeof(int),
76466 + .mode = 0600,
76467 + .proc_handler = &proc_dointvec,
76468 + },
76469 +#endif
76470 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
76471 + {
76472 + .procname = "chroot_deny_fchdir",
76473 + .data = &grsec_enable_chroot_fchdir,
76474 + .maxlen = sizeof(int),
76475 + .mode = 0600,
76476 + .proc_handler = &proc_dointvec,
76477 + },
76478 +#endif
76479 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
76480 + {
76481 + .procname = "chroot_deny_chroot",
76482 + .data = &grsec_enable_chroot_double,
76483 + .maxlen = sizeof(int),
76484 + .mode = 0600,
76485 + .proc_handler = &proc_dointvec,
76486 + },
76487 +#endif
76488 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
76489 + {
76490 + .procname = "chroot_deny_pivot",
76491 + .data = &grsec_enable_chroot_pivot,
76492 + .maxlen = sizeof(int),
76493 + .mode = 0600,
76494 + .proc_handler = &proc_dointvec,
76495 + },
76496 +#endif
76497 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
76498 + {
76499 + .procname = "chroot_enforce_chdir",
76500 + .data = &grsec_enable_chroot_chdir,
76501 + .maxlen = sizeof(int),
76502 + .mode = 0600,
76503 + .proc_handler = &proc_dointvec,
76504 + },
76505 +#endif
76506 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
76507 + {
76508 + .procname = "chroot_deny_chmod",
76509 + .data = &grsec_enable_chroot_chmod,
76510 + .maxlen = sizeof(int),
76511 + .mode = 0600,
76512 + .proc_handler = &proc_dointvec,
76513 + },
76514 +#endif
76515 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
76516 + {
76517 + .procname = "chroot_deny_mknod",
76518 + .data = &grsec_enable_chroot_mknod,
76519 + .maxlen = sizeof(int),
76520 + .mode = 0600,
76521 + .proc_handler = &proc_dointvec,
76522 + },
76523 +#endif
76524 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
76525 + {
76526 + .procname = "chroot_restrict_nice",
76527 + .data = &grsec_enable_chroot_nice,
76528 + .maxlen = sizeof(int),
76529 + .mode = 0600,
76530 + .proc_handler = &proc_dointvec,
76531 + },
76532 +#endif
76533 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
76534 + {
76535 + .procname = "chroot_execlog",
76536 + .data = &grsec_enable_chroot_execlog,
76537 + .maxlen = sizeof(int),
76538 + .mode = 0600,
76539 + .proc_handler = &proc_dointvec,
76540 + },
76541 +#endif
76542 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
76543 + {
76544 + .procname = "chroot_caps",
76545 + .data = &grsec_enable_chroot_caps,
76546 + .maxlen = sizeof(int),
76547 + .mode = 0600,
76548 + .proc_handler = &proc_dointvec,
76549 + },
76550 +#endif
76551 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
76552 + {
76553 + .procname = "chroot_deny_sysctl",
76554 + .data = &grsec_enable_chroot_sysctl,
76555 + .maxlen = sizeof(int),
76556 + .mode = 0600,
76557 + .proc_handler = &proc_dointvec,
76558 + },
76559 +#endif
76560 +#ifdef CONFIG_GRKERNSEC_TPE
76561 + {
76562 + .procname = "tpe",
76563 + .data = &grsec_enable_tpe,
76564 + .maxlen = sizeof(int),
76565 + .mode = 0600,
76566 + .proc_handler = &proc_dointvec,
76567 + },
76568 + {
76569 + .procname = "tpe_gid",
76570 + .data = &grsec_tpe_gid,
76571 + .maxlen = sizeof(int),
76572 + .mode = 0600,
76573 + .proc_handler = &proc_dointvec,
76574 + },
76575 +#endif
76576 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
76577 + {
76578 + .procname = "tpe_invert",
76579 + .data = &grsec_enable_tpe_invert,
76580 + .maxlen = sizeof(int),
76581 + .mode = 0600,
76582 + .proc_handler = &proc_dointvec,
76583 + },
76584 +#endif
76585 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
76586 + {
76587 + .procname = "tpe_restrict_all",
76588 + .data = &grsec_enable_tpe_all,
76589 + .maxlen = sizeof(int),
76590 + .mode = 0600,
76591 + .proc_handler = &proc_dointvec,
76592 + },
76593 +#endif
76594 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
76595 + {
76596 + .procname = "socket_all",
76597 + .data = &grsec_enable_socket_all,
76598 + .maxlen = sizeof(int),
76599 + .mode = 0600,
76600 + .proc_handler = &proc_dointvec,
76601 + },
76602 + {
76603 + .procname = "socket_all_gid",
76604 + .data = &grsec_socket_all_gid,
76605 + .maxlen = sizeof(int),
76606 + .mode = 0600,
76607 + .proc_handler = &proc_dointvec,
76608 + },
76609 +#endif
76610 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
76611 + {
76612 + .procname = "socket_client",
76613 + .data = &grsec_enable_socket_client,
76614 + .maxlen = sizeof(int),
76615 + .mode = 0600,
76616 + .proc_handler = &proc_dointvec,
76617 + },
76618 + {
76619 + .procname = "socket_client_gid",
76620 + .data = &grsec_socket_client_gid,
76621 + .maxlen = sizeof(int),
76622 + .mode = 0600,
76623 + .proc_handler = &proc_dointvec,
76624 + },
76625 +#endif
76626 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
76627 + {
76628 + .procname = "socket_server",
76629 + .data = &grsec_enable_socket_server,
76630 + .maxlen = sizeof(int),
76631 + .mode = 0600,
76632 + .proc_handler = &proc_dointvec,
76633 + },
76634 + {
76635 + .procname = "socket_server_gid",
76636 + .data = &grsec_socket_server_gid,
76637 + .maxlen = sizeof(int),
76638 + .mode = 0600,
76639 + .proc_handler = &proc_dointvec,
76640 + },
76641 +#endif
76642 +#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
76643 + {
76644 + .procname = "audit_group",
76645 + .data = &grsec_enable_group,
76646 + .maxlen = sizeof(int),
76647 + .mode = 0600,
76648 + .proc_handler = &proc_dointvec,
76649 + },
76650 + {
76651 + .procname = "audit_gid",
76652 + .data = &grsec_audit_gid,
76653 + .maxlen = sizeof(int),
76654 + .mode = 0600,
76655 + .proc_handler = &proc_dointvec,
76656 + },
76657 +#endif
76658 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
76659 + {
76660 + .procname = "audit_chdir",
76661 + .data = &grsec_enable_chdir,
76662 + .maxlen = sizeof(int),
76663 + .mode = 0600,
76664 + .proc_handler = &proc_dointvec,
76665 + },
76666 +#endif
76667 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
76668 + {
76669 + .procname = "audit_mount",
76670 + .data = &grsec_enable_mount,
76671 + .maxlen = sizeof(int),
76672 + .mode = 0600,
76673 + .proc_handler = &proc_dointvec,
76674 + },
76675 +#endif
76676 +#ifdef CONFIG_GRKERNSEC_DMESG
76677 + {
76678 + .procname = "dmesg",
76679 + .data = &grsec_enable_dmesg,
76680 + .maxlen = sizeof(int),
76681 + .mode = 0600,
76682 + .proc_handler = &proc_dointvec,
76683 + },
76684 +#endif
76685 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
76686 + {
76687 + .procname = "chroot_findtask",
76688 + .data = &grsec_enable_chroot_findtask,
76689 + .maxlen = sizeof(int),
76690 + .mode = 0600,
76691 + .proc_handler = &proc_dointvec,
76692 + },
76693 +#endif
76694 +#ifdef CONFIG_GRKERNSEC_RESLOG
76695 + {
76696 + .procname = "resource_logging",
76697 + .data = &grsec_resource_logging,
76698 + .maxlen = sizeof(int),
76699 + .mode = 0600,
76700 + .proc_handler = &proc_dointvec,
76701 + },
76702 +#endif
76703 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
76704 + {
76705 + .procname = "audit_ptrace",
76706 + .data = &grsec_enable_audit_ptrace,
76707 + .maxlen = sizeof(int),
76708 + .mode = 0600,
76709 + .proc_handler = &proc_dointvec,
76710 + },
76711 +#endif
76712 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
76713 + {
76714 + .procname = "harden_ptrace",
76715 + .data = &grsec_enable_harden_ptrace,
76716 + .maxlen = sizeof(int),
76717 + .mode = 0600,
76718 + .proc_handler = &proc_dointvec,
76719 + },
76720 +#endif
76721 +#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
76722 + {
76723 + .procname = "harden_ipc",
76724 + .data = &grsec_enable_harden_ipc,
76725 + .maxlen = sizeof(int),
76726 + .mode = 0600,
76727 + .proc_handler = &proc_dointvec,
76728 + },
76729 +#endif
76730 + {
76731 + .procname = "grsec_lock",
76732 + .data = &grsec_lock,
76733 + .maxlen = sizeof(int),
76734 + .mode = 0600,
76735 + .proc_handler = &proc_dointvec,
76736 + },
76737 +#endif
76738 +#ifdef CONFIG_GRKERNSEC_ROFS
76739 + {
76740 + .procname = "romount_protect",
76741 + .data = &grsec_enable_rofs,
76742 + .maxlen = sizeof(int),
76743 + .mode = 0600,
76744 + .proc_handler = &proc_dointvec_minmax,
76745 + .extra1 = &one,
76746 + .extra2 = &one,
76747 + },
76748 +#endif
76749 +#if defined(CONFIG_GRKERNSEC_DENYUSB) && !defined(CONFIG_GRKERNSEC_DENYUSB_FORCE)
76750 + {
76751 + .procname = "deny_new_usb",
76752 + .data = &grsec_deny_new_usb,
76753 + .maxlen = sizeof(int),
76754 + .mode = 0600,
76755 + .proc_handler = &proc_dointvec,
76756 + },
76757 +#endif
76758 + { }
76759 +};
76760 +#endif
76761 diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
76762 new file mode 100644
76763 index 0000000..61b514e
76764 --- /dev/null
76765 +++ b/grsecurity/grsec_time.c
76766 @@ -0,0 +1,16 @@
76767 +#include <linux/kernel.h>
76768 +#include <linux/sched.h>
76769 +#include <linux/grinternal.h>
76770 +#include <linux/module.h>
76771 +
76772 +void
76773 +gr_log_timechange(void)
76774 +{
76775 +#ifdef CONFIG_GRKERNSEC_TIME
76776 + if (grsec_enable_time)
76777 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
76778 +#endif
76779 + return;
76780 +}
76781 +
76782 +EXPORT_SYMBOL_GPL(gr_log_timechange);
76783 diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
76784 new file mode 100644
76785 index 0000000..d1953de
76786 --- /dev/null
76787 +++ b/grsecurity/grsec_tpe.c
76788 @@ -0,0 +1,78 @@
76789 +#include <linux/kernel.h>
76790 +#include <linux/sched.h>
76791 +#include <linux/file.h>
76792 +#include <linux/fs.h>
76793 +#include <linux/grinternal.h>
76794 +
76795 +extern int gr_acl_tpe_check(void);
76796 +
76797 +int
76798 +gr_tpe_allow(const struct file *file)
76799 +{
76800 +#ifdef CONFIG_GRKERNSEC
76801 + struct inode *inode = file->f_path.dentry->d_parent->d_inode;
76802 + struct inode *file_inode = file->f_path.dentry->d_inode;
76803 + const struct cred *cred = current_cred();
76804 + char *msg = NULL;
76805 + char *msg2 = NULL;
76806 +
76807 + // never restrict root
76808 + if (gr_is_global_root(cred->uid))
76809 + return 1;
76810 +
76811 + if (grsec_enable_tpe) {
76812 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
76813 + if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
76814 + msg = "not being in trusted group";
76815 + else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
76816 + msg = "being in untrusted group";
76817 +#else
76818 + if (in_group_p(grsec_tpe_gid))
76819 + msg = "being in untrusted group";
76820 +#endif
76821 + }
76822 + if (!msg && gr_acl_tpe_check())
76823 + msg = "being in untrusted role";
76824 +
76825 + // not in any affected group/role
76826 + if (!msg)
76827 + goto next_check;
76828 +
76829 + if (gr_is_global_nonroot(inode->i_uid))
76830 + msg2 = "file in non-root-owned directory";
76831 + else if (inode->i_mode & S_IWOTH)
76832 + msg2 = "file in world-writable directory";
76833 + else if (inode->i_mode & S_IWGRP)
76834 + msg2 = "file in group-writable directory";
76835 + else if (file_inode->i_mode & S_IWOTH)
76836 + msg2 = "file is world-writable";
76837 +
76838 + if (msg && msg2) {
76839 + char fullmsg[70] = {0};
76840 + snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
76841 + gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
76842 + return 0;
76843 + }
76844 + msg = NULL;
76845 +next_check:
76846 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
76847 + if (!grsec_enable_tpe || !grsec_enable_tpe_all)
76848 + return 1;
76849 +
76850 + if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
76851 + msg = "directory not owned by user";
76852 + else if (inode->i_mode & S_IWOTH)
76853 + msg = "file in world-writable directory";
76854 + else if (inode->i_mode & S_IWGRP)
76855 + msg = "file in group-writable directory";
76856 + else if (file_inode->i_mode & S_IWOTH)
76857 + msg = "file is world-writable";
76858 +
76859 + if (msg) {
76860 + gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
76861 + return 0;
76862 + }
76863 +#endif
76864 +#endif
76865 + return 1;
76866 +}
76867 diff --git a/grsecurity/grsec_usb.c b/grsecurity/grsec_usb.c
76868 new file mode 100644
76869 index 0000000..ae02d8e
76870 --- /dev/null
76871 +++ b/grsecurity/grsec_usb.c
76872 @@ -0,0 +1,15 @@
76873 +#include <linux/kernel.h>
76874 +#include <linux/grinternal.h>
76875 +#include <linux/module.h>
76876 +
76877 +int gr_handle_new_usb(void)
76878 +{
76879 +#ifdef CONFIG_GRKERNSEC_DENYUSB
76880 + if (grsec_deny_new_usb) {
76881 + printk(KERN_ALERT "grsec: denied insert of new USB device\n");
76882 + return 1;
76883 + }
76884 +#endif
76885 + return 0;
76886 +}
76887 +EXPORT_SYMBOL_GPL(gr_handle_new_usb);
76888 diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
76889 new file mode 100644
76890 index 0000000..9f7b1ac
76891 --- /dev/null
76892 +++ b/grsecurity/grsum.c
76893 @@ -0,0 +1,61 @@
76894 +#include <linux/err.h>
76895 +#include <linux/kernel.h>
76896 +#include <linux/sched.h>
76897 +#include <linux/mm.h>
76898 +#include <linux/scatterlist.h>
76899 +#include <linux/crypto.h>
76900 +#include <linux/gracl.h>
76901 +
76902 +
76903 +#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
76904 +#error "crypto and sha256 must be built into the kernel"
76905 +#endif
76906 +
76907 +int
76908 +chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
76909 +{
76910 + char *p;
76911 + struct crypto_hash *tfm;
76912 + struct hash_desc desc;
76913 + struct scatterlist sg;
76914 + unsigned char temp_sum[GR_SHA_LEN];
76915 + volatile int retval = 0;
76916 + volatile int dummy = 0;
76917 + unsigned int i;
76918 +
76919 + sg_init_table(&sg, 1);
76920 +
76921 + tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
76922 + if (IS_ERR(tfm)) {
76923 + /* should never happen, since sha256 should be built in */
76924 + return 1;
76925 + }
76926 +
76927 + desc.tfm = tfm;
76928 + desc.flags = 0;
76929 +
76930 + crypto_hash_init(&desc);
76931 +
76932 + p = salt;
76933 + sg_set_buf(&sg, p, GR_SALT_LEN);
76934 + crypto_hash_update(&desc, &sg, sg.length);
76935 +
76936 + p = entry->pw;
76937 + sg_set_buf(&sg, p, strlen(p));
76938 +
76939 + crypto_hash_update(&desc, &sg, sg.length);
76940 +
76941 + crypto_hash_final(&desc, temp_sum);
76942 +
76943 + memset(entry->pw, 0, GR_PW_LEN);
76944 +
76945 + for (i = 0; i < GR_SHA_LEN; i++)
76946 + if (sum[i] != temp_sum[i])
76947 + retval = 1;
76948 + else
76949 + dummy = 1; // waste a cycle
76950 +
76951 + crypto_free_hash(tfm);
76952 +
76953 + return retval;
76954 +}
76955 diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
76956 index 77ff547..181834f 100644
76957 --- a/include/asm-generic/4level-fixup.h
76958 +++ b/include/asm-generic/4level-fixup.h
76959 @@ -13,8 +13,10 @@
76960 #define pmd_alloc(mm, pud, address) \
76961 ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
76962 NULL: pmd_offset(pud, address))
76963 +#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
76964
76965 #define pud_alloc(mm, pgd, address) (pgd)
76966 +#define pud_alloc_kernel(mm, pgd, address) pud_alloc((mm), (pgd), (address))
76967 #define pud_offset(pgd, start) (pgd)
76968 #define pud_none(pud) 0
76969 #define pud_bad(pud) 0
76970 diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
76971 index b7babf0..97f4c4f 100644
76972 --- a/include/asm-generic/atomic-long.h
76973 +++ b/include/asm-generic/atomic-long.h
76974 @@ -22,6 +22,12 @@
76975
76976 typedef atomic64_t atomic_long_t;
76977
76978 +#ifdef CONFIG_PAX_REFCOUNT
76979 +typedef atomic64_unchecked_t atomic_long_unchecked_t;
76980 +#else
76981 +typedef atomic64_t atomic_long_unchecked_t;
76982 +#endif
76983 +
76984 #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i)
76985
76986 static inline long atomic_long_read(atomic_long_t *l)
76987 @@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
76988 return (long)atomic64_read(v);
76989 }
76990
76991 +#ifdef CONFIG_PAX_REFCOUNT
76992 +static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
76993 +{
76994 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
76995 +
76996 + return (long)atomic64_read_unchecked(v);
76997 +}
76998 +#endif
76999 +
77000 static inline void atomic_long_set(atomic_long_t *l, long i)
77001 {
77002 atomic64_t *v = (atomic64_t *)l;
77003 @@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
77004 atomic64_set(v, i);
77005 }
77006
77007 +#ifdef CONFIG_PAX_REFCOUNT
77008 +static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
77009 +{
77010 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77011 +
77012 + atomic64_set_unchecked(v, i);
77013 +}
77014 +#endif
77015 +
77016 static inline void atomic_long_inc(atomic_long_t *l)
77017 {
77018 atomic64_t *v = (atomic64_t *)l;
77019 @@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
77020 atomic64_inc(v);
77021 }
77022
77023 +#ifdef CONFIG_PAX_REFCOUNT
77024 +static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
77025 +{
77026 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77027 +
77028 + atomic64_inc_unchecked(v);
77029 +}
77030 +#endif
77031 +
77032 static inline void atomic_long_dec(atomic_long_t *l)
77033 {
77034 atomic64_t *v = (atomic64_t *)l;
77035 @@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
77036 atomic64_dec(v);
77037 }
77038
77039 +#ifdef CONFIG_PAX_REFCOUNT
77040 +static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
77041 +{
77042 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77043 +
77044 + atomic64_dec_unchecked(v);
77045 +}
77046 +#endif
77047 +
77048 static inline void atomic_long_add(long i, atomic_long_t *l)
77049 {
77050 atomic64_t *v = (atomic64_t *)l;
77051 @@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
77052 atomic64_add(i, v);
77053 }
77054
77055 +#ifdef CONFIG_PAX_REFCOUNT
77056 +static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
77057 +{
77058 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77059 +
77060 + atomic64_add_unchecked(i, v);
77061 +}
77062 +#endif
77063 +
77064 static inline void atomic_long_sub(long i, atomic_long_t *l)
77065 {
77066 atomic64_t *v = (atomic64_t *)l;
77067 @@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
77068 atomic64_sub(i, v);
77069 }
77070
77071 +#ifdef CONFIG_PAX_REFCOUNT
77072 +static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
77073 +{
77074 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77075 +
77076 + atomic64_sub_unchecked(i, v);
77077 +}
77078 +#endif
77079 +
77080 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
77081 {
77082 atomic64_t *v = (atomic64_t *)l;
77083 @@ -94,13 +154,22 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
77084 return atomic64_add_negative(i, v);
77085 }
77086
77087 -static inline long atomic_long_add_return(long i, atomic_long_t *l)
77088 +static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
77089 {
77090 atomic64_t *v = (atomic64_t *)l;
77091
77092 return (long)atomic64_add_return(i, v);
77093 }
77094
77095 +#ifdef CONFIG_PAX_REFCOUNT
77096 +static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
77097 +{
77098 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77099 +
77100 + return (long)atomic64_add_return_unchecked(i, v);
77101 +}
77102 +#endif
77103 +
77104 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
77105 {
77106 atomic64_t *v = (atomic64_t *)l;
77107 @@ -115,6 +184,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
77108 return (long)atomic64_inc_return(v);
77109 }
77110
77111 +#ifdef CONFIG_PAX_REFCOUNT
77112 +static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
77113 +{
77114 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
77115 +
77116 + return (long)atomic64_inc_return_unchecked(v);
77117 +}
77118 +#endif
77119 +
77120 static inline long atomic_long_dec_return(atomic_long_t *l)
77121 {
77122 atomic64_t *v = (atomic64_t *)l;
77123 @@ -140,6 +218,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
77124
77125 typedef atomic_t atomic_long_t;
77126
77127 +#ifdef CONFIG_PAX_REFCOUNT
77128 +typedef atomic_unchecked_t atomic_long_unchecked_t;
77129 +#else
77130 +typedef atomic_t atomic_long_unchecked_t;
77131 +#endif
77132 +
77133 #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i)
77134 static inline long atomic_long_read(atomic_long_t *l)
77135 {
77136 @@ -148,6 +232,15 @@ static inline long atomic_long_read(atomic_long_t *l)
77137 return (long)atomic_read(v);
77138 }
77139
77140 +#ifdef CONFIG_PAX_REFCOUNT
77141 +static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
77142 +{
77143 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77144 +
77145 + return (long)atomic_read_unchecked(v);
77146 +}
77147 +#endif
77148 +
77149 static inline void atomic_long_set(atomic_long_t *l, long i)
77150 {
77151 atomic_t *v = (atomic_t *)l;
77152 @@ -155,6 +248,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
77153 atomic_set(v, i);
77154 }
77155
77156 +#ifdef CONFIG_PAX_REFCOUNT
77157 +static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
77158 +{
77159 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77160 +
77161 + atomic_set_unchecked(v, i);
77162 +}
77163 +#endif
77164 +
77165 static inline void atomic_long_inc(atomic_long_t *l)
77166 {
77167 atomic_t *v = (atomic_t *)l;
77168 @@ -162,6 +264,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
77169 atomic_inc(v);
77170 }
77171
77172 +#ifdef CONFIG_PAX_REFCOUNT
77173 +static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
77174 +{
77175 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77176 +
77177 + atomic_inc_unchecked(v);
77178 +}
77179 +#endif
77180 +
77181 static inline void atomic_long_dec(atomic_long_t *l)
77182 {
77183 atomic_t *v = (atomic_t *)l;
77184 @@ -169,6 +280,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
77185 atomic_dec(v);
77186 }
77187
77188 +#ifdef CONFIG_PAX_REFCOUNT
77189 +static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
77190 +{
77191 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77192 +
77193 + atomic_dec_unchecked(v);
77194 +}
77195 +#endif
77196 +
77197 static inline void atomic_long_add(long i, atomic_long_t *l)
77198 {
77199 atomic_t *v = (atomic_t *)l;
77200 @@ -176,6 +296,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
77201 atomic_add(i, v);
77202 }
77203
77204 +#ifdef CONFIG_PAX_REFCOUNT
77205 +static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
77206 +{
77207 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77208 +
77209 + atomic_add_unchecked(i, v);
77210 +}
77211 +#endif
77212 +
77213 static inline void atomic_long_sub(long i, atomic_long_t *l)
77214 {
77215 atomic_t *v = (atomic_t *)l;
77216 @@ -183,6 +312,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
77217 atomic_sub(i, v);
77218 }
77219
77220 +#ifdef CONFIG_PAX_REFCOUNT
77221 +static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
77222 +{
77223 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77224 +
77225 + atomic_sub_unchecked(i, v);
77226 +}
77227 +#endif
77228 +
77229 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
77230 {
77231 atomic_t *v = (atomic_t *)l;
77232 @@ -218,6 +356,16 @@ static inline long atomic_long_add_return(long i, atomic_long_t *l)
77233 return (long)atomic_add_return(i, v);
77234 }
77235
77236 +#ifdef CONFIG_PAX_REFCOUNT
77237 +static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
77238 +{
77239 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77240 +
77241 + return (long)atomic_add_return_unchecked(i, v);
77242 +}
77243 +
77244 +#endif
77245 +
77246 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
77247 {
77248 atomic_t *v = (atomic_t *)l;
77249 @@ -232,6 +380,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
77250 return (long)atomic_inc_return(v);
77251 }
77252
77253 +#ifdef CONFIG_PAX_REFCOUNT
77254 +static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
77255 +{
77256 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
77257 +
77258 + return (long)atomic_inc_return_unchecked(v);
77259 +}
77260 +#endif
77261 +
77262 static inline long atomic_long_dec_return(atomic_long_t *l)
77263 {
77264 atomic_t *v = (atomic_t *)l;
77265 @@ -255,4 +412,57 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
77266
77267 #endif /* BITS_PER_LONG == 64 */
77268
77269 +#ifdef CONFIG_PAX_REFCOUNT
77270 +static inline void pax_refcount_needs_these_functions(void)
77271 +{
77272 + atomic_read_unchecked((atomic_unchecked_t *)NULL);
77273 + atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
77274 + atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
77275 + atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
77276 + atomic_inc_unchecked((atomic_unchecked_t *)NULL);
77277 + (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
77278 + atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
77279 + atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
77280 + atomic_dec_unchecked((atomic_unchecked_t *)NULL);
77281 + atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
77282 + (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
77283 +#ifdef CONFIG_X86
77284 + atomic_clear_mask_unchecked(0, NULL);
77285 + atomic_set_mask_unchecked(0, NULL);
77286 +#endif
77287 +
77288 + atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
77289 + atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
77290 + atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
77291 + atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
77292 + atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
77293 + atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
77294 + atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
77295 + atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
77296 +}
77297 +#else
77298 +#define atomic_read_unchecked(v) atomic_read(v)
77299 +#define atomic_set_unchecked(v, i) atomic_set((v), (i))
77300 +#define atomic_add_unchecked(i, v) atomic_add((i), (v))
77301 +#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
77302 +#define atomic_inc_unchecked(v) atomic_inc(v)
77303 +#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
77304 +#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
77305 +#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
77306 +#define atomic_dec_unchecked(v) atomic_dec(v)
77307 +#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
77308 +#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
77309 +#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
77310 +#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
77311 +
77312 +#define atomic_long_read_unchecked(v) atomic_long_read(v)
77313 +#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
77314 +#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
77315 +#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
77316 +#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
77317 +#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
77318 +#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
77319 +#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
77320 +#endif
77321 +
77322 #endif /* _ASM_GENERIC_ATOMIC_LONG_H */
77323 diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
77324 index 33bd2de..f31bff97 100644
77325 --- a/include/asm-generic/atomic.h
77326 +++ b/include/asm-generic/atomic.h
77327 @@ -153,7 +153,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
77328 * Atomically clears the bits set in @mask from @v
77329 */
77330 #ifndef atomic_clear_mask
77331 -static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
77332 +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
77333 {
77334 unsigned long flags;
77335
77336 diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
77337 index b18ce4f..2ee2843 100644
77338 --- a/include/asm-generic/atomic64.h
77339 +++ b/include/asm-generic/atomic64.h
77340 @@ -16,6 +16,8 @@ typedef struct {
77341 long long counter;
77342 } atomic64_t;
77343
77344 +typedef atomic64_t atomic64_unchecked_t;
77345 +
77346 #define ATOMIC64_INIT(i) { (i) }
77347
77348 extern long long atomic64_read(const atomic64_t *v);
77349 @@ -39,4 +41,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u);
77350 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
77351 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
77352
77353 +#define atomic64_read_unchecked(v) atomic64_read(v)
77354 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
77355 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
77356 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
77357 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
77358 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
77359 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
77360 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
77361 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
77362 +
77363 #endif /* _ASM_GENERIC_ATOMIC64_H */
77364 diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
77365 index 6f692f8..2ad9dd2 100644
77366 --- a/include/asm-generic/barrier.h
77367 +++ b/include/asm-generic/barrier.h
77368 @@ -66,7 +66,7 @@
77369 do { \
77370 compiletime_assert_atomic_type(*p); \
77371 smp_mb(); \
77372 - ACCESS_ONCE(*p) = (v); \
77373 + ACCESS_ONCE_RW(*p) = (v); \
77374 } while (0)
77375
77376 #define smp_load_acquire(p) \
77377 diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
77378 index a60a7cc..0fe12f2 100644
77379 --- a/include/asm-generic/bitops/__fls.h
77380 +++ b/include/asm-generic/bitops/__fls.h
77381 @@ -9,7 +9,7 @@
77382 *
77383 * Undefined if no set bit exists, so code should check against 0 first.
77384 */
77385 -static __always_inline unsigned long __fls(unsigned long word)
77386 +static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
77387 {
77388 int num = BITS_PER_LONG - 1;
77389
77390 diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
77391 index 0576d1f..dad6c71 100644
77392 --- a/include/asm-generic/bitops/fls.h
77393 +++ b/include/asm-generic/bitops/fls.h
77394 @@ -9,7 +9,7 @@
77395 * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
77396 */
77397
77398 -static __always_inline int fls(int x)
77399 +static __always_inline int __intentional_overflow(-1) fls(int x)
77400 {
77401 int r = 32;
77402
77403 diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
77404 index b097cf8..3d40e14 100644
77405 --- a/include/asm-generic/bitops/fls64.h
77406 +++ b/include/asm-generic/bitops/fls64.h
77407 @@ -15,7 +15,7 @@
77408 * at position 64.
77409 */
77410 #if BITS_PER_LONG == 32
77411 -static __always_inline int fls64(__u64 x)
77412 +static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
77413 {
77414 __u32 h = x >> 32;
77415 if (h)
77416 @@ -23,7 +23,7 @@ static __always_inline int fls64(__u64 x)
77417 return fls(x);
77418 }
77419 #elif BITS_PER_LONG == 64
77420 -static __always_inline int fls64(__u64 x)
77421 +static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
77422 {
77423 if (x == 0)
77424 return 0;
77425 diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
77426 index 1bfcfe5..e04c5c9 100644
77427 --- a/include/asm-generic/cache.h
77428 +++ b/include/asm-generic/cache.h
77429 @@ -6,7 +6,7 @@
77430 * cache lines need to provide their own cache.h.
77431 */
77432
77433 -#define L1_CACHE_SHIFT 5
77434 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
77435 +#define L1_CACHE_SHIFT 5UL
77436 +#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT)
77437
77438 #endif /* __ASM_GENERIC_CACHE_H */
77439 diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
77440 index 0d68a1e..b74a761 100644
77441 --- a/include/asm-generic/emergency-restart.h
77442 +++ b/include/asm-generic/emergency-restart.h
77443 @@ -1,7 +1,7 @@
77444 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
77445 #define _ASM_GENERIC_EMERGENCY_RESTART_H
77446
77447 -static inline void machine_emergency_restart(void)
77448 +static inline __noreturn void machine_emergency_restart(void)
77449 {
77450 machine_restart(NULL);
77451 }
77452 diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
77453 index 975e1cc..0b8a083 100644
77454 --- a/include/asm-generic/io.h
77455 +++ b/include/asm-generic/io.h
77456 @@ -289,7 +289,7 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
77457 * These are pretty trivial
77458 */
77459 #ifndef virt_to_phys
77460 -static inline unsigned long virt_to_phys(volatile void *address)
77461 +static inline unsigned long __intentional_overflow(-1) virt_to_phys(volatile void *address)
77462 {
77463 return __pa((unsigned long)address);
77464 }
77465 diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
77466 index 90f99c7..00ce236 100644
77467 --- a/include/asm-generic/kmap_types.h
77468 +++ b/include/asm-generic/kmap_types.h
77469 @@ -2,9 +2,9 @@
77470 #define _ASM_GENERIC_KMAP_TYPES_H
77471
77472 #ifdef __WITH_KM_FENCE
77473 -# define KM_TYPE_NR 41
77474 +# define KM_TYPE_NR 42
77475 #else
77476 -# define KM_TYPE_NR 20
77477 +# define KM_TYPE_NR 21
77478 #endif
77479
77480 #endif
77481 diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
77482 index 9ceb03b..62b0b8f 100644
77483 --- a/include/asm-generic/local.h
77484 +++ b/include/asm-generic/local.h
77485 @@ -23,24 +23,37 @@ typedef struct
77486 atomic_long_t a;
77487 } local_t;
77488
77489 +typedef struct {
77490 + atomic_long_unchecked_t a;
77491 +} local_unchecked_t;
77492 +
77493 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
77494
77495 #define local_read(l) atomic_long_read(&(l)->a)
77496 +#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
77497 #define local_set(l,i) atomic_long_set((&(l)->a),(i))
77498 +#define local_set_unchecked(l,i) atomic_long_set_unchecked((&(l)->a),(i))
77499 #define local_inc(l) atomic_long_inc(&(l)->a)
77500 +#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
77501 #define local_dec(l) atomic_long_dec(&(l)->a)
77502 +#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
77503 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
77504 +#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
77505 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
77506 +#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
77507
77508 #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
77509 #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
77510 #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
77511 #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
77512 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
77513 +#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
77514 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
77515 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
77516 +#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
77517
77518 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
77519 +#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
77520 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
77521 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
77522 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
77523 diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
77524 index 725612b..9cc513a 100644
77525 --- a/include/asm-generic/pgtable-nopmd.h
77526 +++ b/include/asm-generic/pgtable-nopmd.h
77527 @@ -1,14 +1,19 @@
77528 #ifndef _PGTABLE_NOPMD_H
77529 #define _PGTABLE_NOPMD_H
77530
77531 -#ifndef __ASSEMBLY__
77532 -
77533 #include <asm-generic/pgtable-nopud.h>
77534
77535 -struct mm_struct;
77536 -
77537 #define __PAGETABLE_PMD_FOLDED
77538
77539 +#define PMD_SHIFT PUD_SHIFT
77540 +#define PTRS_PER_PMD 1
77541 +#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT)
77542 +#define PMD_MASK (~(PMD_SIZE-1))
77543 +
77544 +#ifndef __ASSEMBLY__
77545 +
77546 +struct mm_struct;
77547 +
77548 /*
77549 * Having the pmd type consist of a pud gets the size right, and allows
77550 * us to conceptually access the pud entry that this pmd is folded into
77551 @@ -16,11 +21,6 @@ struct mm_struct;
77552 */
77553 typedef struct { pud_t pud; } pmd_t;
77554
77555 -#define PMD_SHIFT PUD_SHIFT
77556 -#define PTRS_PER_PMD 1
77557 -#define PMD_SIZE (1UL << PMD_SHIFT)
77558 -#define PMD_MASK (~(PMD_SIZE-1))
77559 -
77560 /*
77561 * The "pud_xxx()" functions here are trivial for a folded two-level
77562 * setup: the pmd is never bad, and a pmd always exists (as it's folded
77563 diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
77564 index 810431d..0ec4804f 100644
77565 --- a/include/asm-generic/pgtable-nopud.h
77566 +++ b/include/asm-generic/pgtable-nopud.h
77567 @@ -1,10 +1,15 @@
77568 #ifndef _PGTABLE_NOPUD_H
77569 #define _PGTABLE_NOPUD_H
77570
77571 -#ifndef __ASSEMBLY__
77572 -
77573 #define __PAGETABLE_PUD_FOLDED
77574
77575 +#define PUD_SHIFT PGDIR_SHIFT
77576 +#define PTRS_PER_PUD 1
77577 +#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT)
77578 +#define PUD_MASK (~(PUD_SIZE-1))
77579 +
77580 +#ifndef __ASSEMBLY__
77581 +
77582 /*
77583 * Having the pud type consist of a pgd gets the size right, and allows
77584 * us to conceptually access the pgd entry that this pud is folded into
77585 @@ -12,11 +17,6 @@
77586 */
77587 typedef struct { pgd_t pgd; } pud_t;
77588
77589 -#define PUD_SHIFT PGDIR_SHIFT
77590 -#define PTRS_PER_PUD 1
77591 -#define PUD_SIZE (1UL << PUD_SHIFT)
77592 -#define PUD_MASK (~(PUD_SIZE-1))
77593 -
77594 /*
77595 * The "pgd_xxx()" functions here are trivial for a folded two-level
77596 * setup: the pud is never bad, and a pud always exists (as it's folded
77597 @@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { }
77598 #define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
77599
77600 #define pgd_populate(mm, pgd, pud) do { } while (0)
77601 +#define pgd_populate_kernel(mm, pgd, pud) do { } while (0)
77602 /*
77603 * (puds are folded into pgds so this doesn't get actually called,
77604 * but the define is needed for a generic inline function.)
77605 diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
77606 index a8015a7..7a4407b 100644
77607 --- a/include/asm-generic/pgtable.h
77608 +++ b/include/asm-generic/pgtable.h
77609 @@ -815,6 +815,22 @@ static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr,
77610 }
77611 #endif /* CONFIG_NUMA_BALANCING */
77612
77613 +#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
77614 +#ifdef CONFIG_PAX_KERNEXEC
77615 +#error KERNEXEC requires pax_open_kernel
77616 +#else
77617 +static inline unsigned long pax_open_kernel(void) { return 0; }
77618 +#endif
77619 +#endif
77620 +
77621 +#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
77622 +#ifdef CONFIG_PAX_KERNEXEC
77623 +#error KERNEXEC requires pax_close_kernel
77624 +#else
77625 +static inline unsigned long pax_close_kernel(void) { return 0; }
77626 +#endif
77627 +#endif
77628 +
77629 #endif /* CONFIG_MMU */
77630
77631 #endif /* !__ASSEMBLY__ */
77632 diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
77633 index 72d8803..cb9749c 100644
77634 --- a/include/asm-generic/uaccess.h
77635 +++ b/include/asm-generic/uaccess.h
77636 @@ -343,4 +343,20 @@ clear_user(void __user *to, unsigned long n)
77637 return __clear_user(to, n);
77638 }
77639
77640 +#ifndef __HAVE_ARCH_PAX_OPEN_USERLAND
77641 +#ifdef CONFIG_PAX_MEMORY_UDEREF
77642 +#error UDEREF requires pax_open_userland
77643 +#else
77644 +static inline unsigned long pax_open_userland(void) { return 0; }
77645 +#endif
77646 +#endif
77647 +
77648 +#ifndef __HAVE_ARCH_PAX_CLOSE_USERLAND
77649 +#ifdef CONFIG_PAX_MEMORY_UDEREF
77650 +#error UDEREF requires pax_close_userland
77651 +#else
77652 +static inline unsigned long pax_close_userland(void) { return 0; }
77653 +#endif
77654 +#endif
77655 +
77656 #endif /* __ASM_GENERIC_UACCESS_H */
77657 diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
77658 index 146e4ff..f4f9609 100644
77659 --- a/include/asm-generic/vmlinux.lds.h
77660 +++ b/include/asm-generic/vmlinux.lds.h
77661 @@ -251,6 +251,7 @@
77662 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
77663 VMLINUX_SYMBOL(__start_rodata) = .; \
77664 *(.rodata) *(.rodata.*) \
77665 + *(.data..read_only) \
77666 *(__vermagic) /* Kernel version magic */ \
77667 . = ALIGN(8); \
77668 VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \
77669 @@ -737,17 +738,18 @@
77670 * section in the linker script will go there too. @phdr should have
77671 * a leading colon.
77672 *
77673 - * Note that this macros defines __per_cpu_load as an absolute symbol.
77674 + * Note that this macros defines per_cpu_load as an absolute symbol.
77675 * If there is no need to put the percpu section at a predetermined
77676 * address, use PERCPU_SECTION.
77677 */
77678 #define PERCPU_VADDR(cacheline, vaddr, phdr) \
77679 - VMLINUX_SYMBOL(__per_cpu_load) = .; \
77680 - .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
77681 + per_cpu_load = .; \
77682 + .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \
77683 - LOAD_OFFSET) { \
77684 + VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \
77685 PERCPU_INPUT(cacheline) \
77686 } phdr \
77687 - . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
77688 + . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
77689
77690 /**
77691 * PERCPU_SECTION - define output section for percpu area, simple version
77692 diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
77693 index 016c2f1..c4baa98 100644
77694 --- a/include/crypto/algapi.h
77695 +++ b/include/crypto/algapi.h
77696 @@ -34,7 +34,7 @@ struct crypto_type {
77697 unsigned int maskclear;
77698 unsigned int maskset;
77699 unsigned int tfmsize;
77700 -};
77701 +} __do_const;
77702
77703 struct crypto_instance {
77704 struct crypto_alg alg;
77705 diff --git a/include/drm/drmP.h b/include/drm/drmP.h
77706 index a7c2a86..078f1b6 100644
77707 --- a/include/drm/drmP.h
77708 +++ b/include/drm/drmP.h
77709 @@ -68,6 +68,7 @@
77710 #include <linux/workqueue.h>
77711 #include <linux/poll.h>
77712 #include <asm/pgalloc.h>
77713 +#include <asm/local.h>
77714 #include <drm/drm.h>
77715 #include <drm/drm_sarea.h>
77716 #include <drm/drm_vma_manager.h>
77717 @@ -268,10 +269,12 @@ do { \
77718 * \param cmd command.
77719 * \param arg argument.
77720 */
77721 -typedef int drm_ioctl_t(struct drm_device *dev, void *data,
77722 +typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
77723 + struct drm_file *file_priv);
77724 +typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
77725 struct drm_file *file_priv);
77726
77727 -typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
77728 +typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
77729 unsigned long arg);
77730
77731 #define DRM_IOCTL_NR(n) _IOC_NR(n)
77732 @@ -287,10 +290,10 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
77733 struct drm_ioctl_desc {
77734 unsigned int cmd;
77735 int flags;
77736 - drm_ioctl_t *func;
77737 + drm_ioctl_t func;
77738 unsigned int cmd_drv;
77739 const char *name;
77740 -};
77741 +} __do_const;
77742
77743 /**
77744 * Creates a driver or general drm_ioctl_desc array entry for the given
77745 @@ -1001,7 +1004,8 @@ struct drm_info_list {
77746 int (*show)(struct seq_file*, void*); /** show callback */
77747 u32 driver_features; /**< Required driver features for this entry */
77748 void *data;
77749 -};
77750 +} __do_const;
77751 +typedef struct drm_info_list __no_const drm_info_list_no_const;
77752
77753 /**
77754 * debugfs node structure. This structure represents a debugfs file.
77755 @@ -1083,7 +1087,7 @@ struct drm_device {
77756
77757 /** \name Usage Counters */
77758 /*@{ */
77759 - int open_count; /**< Outstanding files open */
77760 + local_t open_count; /**< Outstanding files open */
77761 int buf_use; /**< Buffers in use -- cannot alloc */
77762 atomic_t buf_alloc; /**< Buffer allocation in progress */
77763 /*@} */
77764 diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
77765 index 36a5feb..d9f01aa 100644
77766 --- a/include/drm/drm_crtc_helper.h
77767 +++ b/include/drm/drm_crtc_helper.h
77768 @@ -109,7 +109,7 @@ struct drm_encoder_helper_funcs {
77769 struct drm_connector *connector);
77770 /* disable encoder when not in use - more explicit than dpms off */
77771 void (*disable)(struct drm_encoder *encoder);
77772 -};
77773 +} __no_const;
77774
77775 /**
77776 * drm_connector_helper_funcs - helper operations for connectors
77777 diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
77778 index 012d58f..d0a0642 100644
77779 --- a/include/drm/i915_pciids.h
77780 +++ b/include/drm/i915_pciids.h
77781 @@ -37,7 +37,7 @@
77782 */
77783 #define INTEL_VGA_DEVICE(id, info) { \
77784 0x8086, id, \
77785 - ~0, ~0, \
77786 + PCI_ANY_ID, PCI_ANY_ID, \
77787 0x030000, 0xff0000, \
77788 (unsigned long) info }
77789
77790 diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
77791 index 72dcbe8..8db58d7 100644
77792 --- a/include/drm/ttm/ttm_memory.h
77793 +++ b/include/drm/ttm/ttm_memory.h
77794 @@ -48,7 +48,7 @@
77795
77796 struct ttm_mem_shrink {
77797 int (*do_shrink) (struct ttm_mem_shrink *);
77798 -};
77799 +} __no_const;
77800
77801 /**
77802 * struct ttm_mem_global - Global memory accounting structure.
77803 diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
77804 index 49a8284..9643967 100644
77805 --- a/include/drm/ttm/ttm_page_alloc.h
77806 +++ b/include/drm/ttm/ttm_page_alloc.h
77807 @@ -80,6 +80,7 @@ void ttm_dma_page_alloc_fini(void);
77808 */
77809 extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
77810
77811 +struct device;
77812 extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
77813 extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
77814
77815 diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
77816 index 4b840e8..155d235 100644
77817 --- a/include/keys/asymmetric-subtype.h
77818 +++ b/include/keys/asymmetric-subtype.h
77819 @@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
77820 /* Verify the signature on a key of this subtype (optional) */
77821 int (*verify_signature)(const struct key *key,
77822 const struct public_key_signature *sig);
77823 -};
77824 +} __do_const;
77825
77826 /**
77827 * asymmetric_key_subtype - Get the subtype from an asymmetric key
77828 diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
77829 index c1da539..1dcec55 100644
77830 --- a/include/linux/atmdev.h
77831 +++ b/include/linux/atmdev.h
77832 @@ -28,7 +28,7 @@ struct compat_atm_iobuf {
77833 #endif
77834
77835 struct k_atm_aal_stats {
77836 -#define __HANDLE_ITEM(i) atomic_t i
77837 +#define __HANDLE_ITEM(i) atomic_unchecked_t i
77838 __AAL_STAT_ITEMS
77839 #undef __HANDLE_ITEM
77840 };
77841 @@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
77842 int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
77843 int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
77844 struct module *owner;
77845 -};
77846 +} __do_const ;
77847
77848 struct atmphy_ops {
77849 int (*start)(struct atm_dev *dev);
77850 diff --git a/include/linux/audit.h b/include/linux/audit.h
77851 index 22cfddb..ab759e8 100644
77852 --- a/include/linux/audit.h
77853 +++ b/include/linux/audit.h
77854 @@ -210,7 +210,7 @@ static inline void audit_ptrace(struct task_struct *t)
77855 extern unsigned int audit_serial(void);
77856 extern int auditsc_get_stamp(struct audit_context *ctx,
77857 struct timespec *t, unsigned int *serial);
77858 -extern int audit_set_loginuid(kuid_t loginuid);
77859 +extern int __intentional_overflow(-1) audit_set_loginuid(kuid_t loginuid);
77860
77861 static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
77862 {
77863 diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
77864 index 61f29e5..e67c658 100644
77865 --- a/include/linux/binfmts.h
77866 +++ b/include/linux/binfmts.h
77867 @@ -44,7 +44,7 @@ struct linux_binprm {
77868 unsigned interp_flags;
77869 unsigned interp_data;
77870 unsigned long loader, exec;
77871 -};
77872 +} __randomize_layout;
77873
77874 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
77875 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
77876 @@ -73,8 +73,10 @@ struct linux_binfmt {
77877 int (*load_binary)(struct linux_binprm *);
77878 int (*load_shlib)(struct file *);
77879 int (*core_dump)(struct coredump_params *cprm);
77880 + void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
77881 + void (*handle_mmap)(struct file *);
77882 unsigned long min_coredump; /* minimal dump size */
77883 -};
77884 +} __do_const __randomize_layout;
77885
77886 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
77887
77888 diff --git a/include/linux/bitops.h b/include/linux/bitops.h
77889 index be5fd38..d71192a 100644
77890 --- a/include/linux/bitops.h
77891 +++ b/include/linux/bitops.h
77892 @@ -102,7 +102,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
77893 * @word: value to rotate
77894 * @shift: bits to roll
77895 */
77896 -static inline __u32 rol32(__u32 word, unsigned int shift)
77897 +static inline __u32 __intentional_overflow(-1) rol32(__u32 word, unsigned int shift)
77898 {
77899 return (word << shift) | (word >> (32 - shift));
77900 }
77901 @@ -112,7 +112,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
77902 * @word: value to rotate
77903 * @shift: bits to roll
77904 */
77905 -static inline __u32 ror32(__u32 word, unsigned int shift)
77906 +static inline __u32 __intentional_overflow(-1) ror32(__u32 word, unsigned int shift)
77907 {
77908 return (word >> shift) | (word << (32 - shift));
77909 }
77910 @@ -168,7 +168,7 @@ static inline __s32 sign_extend32(__u32 value, int index)
77911 return (__s32)(value << shift) >> shift;
77912 }
77913
77914 -static inline unsigned fls_long(unsigned long l)
77915 +static inline unsigned __intentional_overflow(-1) fls_long(unsigned long l)
77916 {
77917 if (sizeof(l) == 4)
77918 return fls(l);
77919 diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
77920 index 0d84981..bb741c0 100644
77921 --- a/include/linux/blkdev.h
77922 +++ b/include/linux/blkdev.h
77923 @@ -1584,7 +1584,7 @@ struct block_device_operations {
77924 /* this callback is with swap_lock and sometimes page table lock held */
77925 void (*swap_slot_free_notify) (struct block_device *, unsigned long);
77926 struct module *owner;
77927 -};
77928 +} __do_const;
77929
77930 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
77931 unsigned long);
77932 diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
77933 index afc1343..9735539 100644
77934 --- a/include/linux/blktrace_api.h
77935 +++ b/include/linux/blktrace_api.h
77936 @@ -25,7 +25,7 @@ struct blk_trace {
77937 struct dentry *dropped_file;
77938 struct dentry *msg_file;
77939 struct list_head running_list;
77940 - atomic_t dropped;
77941 + atomic_unchecked_t dropped;
77942 };
77943
77944 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
77945 diff --git a/include/linux/cache.h b/include/linux/cache.h
77946 index 17e7e82..1d7da26 100644
77947 --- a/include/linux/cache.h
77948 +++ b/include/linux/cache.h
77949 @@ -16,6 +16,14 @@
77950 #define __read_mostly
77951 #endif
77952
77953 +#ifndef __read_only
77954 +#ifdef CONFIG_PAX_KERNEXEC
77955 +#error KERNEXEC requires __read_only
77956 +#else
77957 +#define __read_only __read_mostly
77958 +#endif
77959 +#endif
77960 +
77961 #ifndef ____cacheline_aligned
77962 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
77963 #endif
77964 diff --git a/include/linux/capability.h b/include/linux/capability.h
77965 index 84b13ad..172cdee 100644
77966 --- a/include/linux/capability.h
77967 +++ b/include/linux/capability.h
77968 @@ -211,9 +211,14 @@ extern bool has_ns_capability_noaudit(struct task_struct *t,
77969 extern bool capable(int cap);
77970 extern bool ns_capable(struct user_namespace *ns, int cap);
77971 extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
77972 +extern bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap);
77973 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
77974 +extern bool capable_nolog(int cap);
77975 +extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
77976
77977 /* audit system wants to get cap info from files as well */
77978 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
77979
77980 +extern int is_privileged_binary(const struct dentry *dentry);
77981 +
77982 #endif /* !_LINUX_CAPABILITY_H */
77983 diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
77984 index 8609d57..86e4d79 100644
77985 --- a/include/linux/cdrom.h
77986 +++ b/include/linux/cdrom.h
77987 @@ -87,7 +87,6 @@ struct cdrom_device_ops {
77988
77989 /* driver specifications */
77990 const int capability; /* capability flags */
77991 - int n_minors; /* number of active minor devices */
77992 /* handle uniform packets for scsi type devices (scsi,atapi) */
77993 int (*generic_packet) (struct cdrom_device_info *,
77994 struct packet_command *);
77995 diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
77996 index 4ce9056..86caac6 100644
77997 --- a/include/linux/cleancache.h
77998 +++ b/include/linux/cleancache.h
77999 @@ -31,7 +31,7 @@ struct cleancache_ops {
78000 void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
78001 void (*invalidate_inode)(int, struct cleancache_filekey);
78002 void (*invalidate_fs)(int);
78003 -};
78004 +} __no_const;
78005
78006 extern struct cleancache_ops *
78007 cleancache_register_ops(struct cleancache_ops *ops);
78008 diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
78009 index 5119174..8e264f8 100644
78010 --- a/include/linux/clk-provider.h
78011 +++ b/include/linux/clk-provider.h
78012 @@ -174,6 +174,7 @@ struct clk_ops {
78013 void (*init)(struct clk_hw *hw);
78014 int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
78015 };
78016 +typedef struct clk_ops __no_const clk_ops_no_const;
78017
78018 /**
78019 * struct clk_init_data - holds init data that's common to all clocks and is
78020 diff --git a/include/linux/compat.h b/include/linux/compat.h
78021 index e649426..a74047b 100644
78022 --- a/include/linux/compat.h
78023 +++ b/include/linux/compat.h
78024 @@ -316,7 +316,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
78025 compat_size_t __user *len_ptr);
78026
78027 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
78028 -asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
78029 +asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
78030 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
78031 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
78032 compat_ssize_t msgsz, int msgflg);
78033 @@ -436,7 +436,7 @@ extern int compat_ptrace_request(struct task_struct *child,
78034 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
78035 compat_ulong_t addr, compat_ulong_t data);
78036 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
78037 - compat_long_t addr, compat_long_t data);
78038 + compat_ulong_t addr, compat_ulong_t data);
78039
78040 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
78041 /*
78042 diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
78043 index 2507fd2..55203f8 100644
78044 --- a/include/linux/compiler-gcc4.h
78045 +++ b/include/linux/compiler-gcc4.h
78046 @@ -39,9 +39,34 @@
78047 # define __compiletime_warning(message) __attribute__((warning(message)))
78048 # define __compiletime_error(message) __attribute__((error(message)))
78049 #endif /* __CHECKER__ */
78050 +
78051 +#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
78052 +#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
78053 +#define __bos0(ptr) __bos((ptr), 0)
78054 +#define __bos1(ptr) __bos((ptr), 1)
78055 #endif /* GCC_VERSION >= 40300 */
78056
78057 #if GCC_VERSION >= 40500
78058 +
78059 +#ifdef RANDSTRUCT_PLUGIN
78060 +#define __randomize_layout __attribute__((randomize_layout))
78061 +#define __no_randomize_layout __attribute__((no_randomize_layout))
78062 +#endif
78063 +
78064 +#ifdef CONSTIFY_PLUGIN
78065 +#define __no_const __attribute__((no_const))
78066 +#define __do_const __attribute__((do_const))
78067 +#endif
78068 +
78069 +#ifdef SIZE_OVERFLOW_PLUGIN
78070 +#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
78071 +#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
78072 +#endif
78073 +
78074 +#ifdef LATENT_ENTROPY_PLUGIN
78075 +#define __latent_entropy __attribute__((latent_entropy))
78076 +#endif
78077 +
78078 /*
78079 * Mark a position in code as unreachable. This can be used to
78080 * suppress control flow warnings after asm blocks that transfer
78081 diff --git a/include/linux/compiler.h b/include/linux/compiler.h
78082 index ee7239e..7c11769 100644
78083 --- a/include/linux/compiler.h
78084 +++ b/include/linux/compiler.h
78085 @@ -5,11 +5,14 @@
78086
78087 #ifdef __CHECKER__
78088 # define __user __attribute__((noderef, address_space(1)))
78089 +# define __force_user __force __user
78090 # define __kernel __attribute__((address_space(0)))
78091 +# define __force_kernel __force __kernel
78092 # define __safe __attribute__((safe))
78093 # define __force __attribute__((force))
78094 # define __nocast __attribute__((nocast))
78095 # define __iomem __attribute__((noderef, address_space(2)))
78096 +# define __force_iomem __force __iomem
78097 # define __must_hold(x) __attribute__((context(x,1,1)))
78098 # define __acquires(x) __attribute__((context(x,0,1)))
78099 # define __releases(x) __attribute__((context(x,1,0)))
78100 @@ -17,20 +20,37 @@
78101 # define __release(x) __context__(x,-1)
78102 # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
78103 # define __percpu __attribute__((noderef, address_space(3)))
78104 +# define __force_percpu __force __percpu
78105 #ifdef CONFIG_SPARSE_RCU_POINTER
78106 # define __rcu __attribute__((noderef, address_space(4)))
78107 +# define __force_rcu __force __rcu
78108 #else
78109 # define __rcu
78110 +# define __force_rcu
78111 #endif
78112 extern void __chk_user_ptr(const volatile void __user *);
78113 extern void __chk_io_ptr(const volatile void __iomem *);
78114 #else
78115 -# define __user
78116 -# define __kernel
78117 +# ifdef CHECKER_PLUGIN
78118 +//# define __user
78119 +//# define __force_user
78120 +//# define __kernel
78121 +//# define __force_kernel
78122 +# else
78123 +# ifdef STRUCTLEAK_PLUGIN
78124 +# define __user __attribute__((user))
78125 +# else
78126 +# define __user
78127 +# endif
78128 +# define __force_user
78129 +# define __kernel
78130 +# define __force_kernel
78131 +# endif
78132 # define __safe
78133 # define __force
78134 # define __nocast
78135 # define __iomem
78136 +# define __force_iomem
78137 # define __chk_user_ptr(x) (void)0
78138 # define __chk_io_ptr(x) (void)0
78139 # define __builtin_warning(x, y...) (1)
78140 @@ -41,7 +61,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
78141 # define __release(x) (void)0
78142 # define __cond_lock(x,c) (c)
78143 # define __percpu
78144 +# define __force_percpu
78145 # define __rcu
78146 +# define __force_rcu
78147 #endif
78148
78149 /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
78150 @@ -286,6 +308,34 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
78151 # define __attribute_const__ /* unimplemented */
78152 #endif
78153
78154 +#ifndef __randomize_layout
78155 +# define __randomize_layout
78156 +#endif
78157 +
78158 +#ifndef __no_randomize_layout
78159 +# define __no_randomize_layout
78160 +#endif
78161 +
78162 +#ifndef __no_const
78163 +# define __no_const
78164 +#endif
78165 +
78166 +#ifndef __do_const
78167 +# define __do_const
78168 +#endif
78169 +
78170 +#ifndef __size_overflow
78171 +# define __size_overflow(...)
78172 +#endif
78173 +
78174 +#ifndef __intentional_overflow
78175 +# define __intentional_overflow(...)
78176 +#endif
78177 +
78178 +#ifndef __latent_entropy
78179 +# define __latent_entropy
78180 +#endif
78181 +
78182 /*
78183 * Tell gcc if a function is cold. The compiler will assume any path
78184 * directly leading to the call is unlikely.
78185 @@ -295,6 +345,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
78186 #define __cold
78187 #endif
78188
78189 +#ifndef __alloc_size
78190 +#define __alloc_size(...)
78191 +#endif
78192 +
78193 +#ifndef __bos
78194 +#define __bos(ptr, arg)
78195 +#endif
78196 +
78197 +#ifndef __bos0
78198 +#define __bos0(ptr)
78199 +#endif
78200 +
78201 +#ifndef __bos1
78202 +#define __bos1(ptr)
78203 +#endif
78204 +
78205 /* Simple shorthand for a section definition */
78206 #ifndef __section
78207 # define __section(S) __attribute__ ((__section__(#S)))
78208 @@ -369,7 +435,8 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
78209 * use is to mediate communication between process-level code and irq/NMI
78210 * handlers, all running on the same CPU.
78211 */
78212 -#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
78213 +#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x))
78214 +#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
78215
78216 /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
78217 #ifdef CONFIG_KPROBES
78218 diff --git a/include/linux/completion.h b/include/linux/completion.h
78219 index 5d5aaae..0ea9b84 100644
78220 --- a/include/linux/completion.h
78221 +++ b/include/linux/completion.h
78222 @@ -90,16 +90,16 @@ static inline void reinit_completion(struct completion *x)
78223
78224 extern void wait_for_completion(struct completion *);
78225 extern void wait_for_completion_io(struct completion *);
78226 -extern int wait_for_completion_interruptible(struct completion *x);
78227 -extern int wait_for_completion_killable(struct completion *x);
78228 +extern int wait_for_completion_interruptible(struct completion *x) __intentional_overflow(-1);
78229 +extern int wait_for_completion_killable(struct completion *x) __intentional_overflow(-1);
78230 extern unsigned long wait_for_completion_timeout(struct completion *x,
78231 - unsigned long timeout);
78232 + unsigned long timeout) __intentional_overflow(-1);
78233 extern unsigned long wait_for_completion_io_timeout(struct completion *x,
78234 - unsigned long timeout);
78235 + unsigned long timeout) __intentional_overflow(-1);
78236 extern long wait_for_completion_interruptible_timeout(
78237 - struct completion *x, unsigned long timeout);
78238 + struct completion *x, unsigned long timeout) __intentional_overflow(-1);
78239 extern long wait_for_completion_killable_timeout(
78240 - struct completion *x, unsigned long timeout);
78241 + struct completion *x, unsigned long timeout) __intentional_overflow(-1);
78242 extern bool try_wait_for_completion(struct completion *x);
78243 extern bool completion_done(struct completion *x);
78244
78245 diff --git a/include/linux/configfs.h b/include/linux/configfs.h
78246 index 34025df..d94bbbc 100644
78247 --- a/include/linux/configfs.h
78248 +++ b/include/linux/configfs.h
78249 @@ -125,7 +125,7 @@ struct configfs_attribute {
78250 const char *ca_name;
78251 struct module *ca_owner;
78252 umode_t ca_mode;
78253 -};
78254 +} __do_const;
78255
78256 /*
78257 * Users often need to create attribute structures for their configurable
78258 diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
78259 index 5ae5100..b809662 100644
78260 --- a/include/linux/cpufreq.h
78261 +++ b/include/linux/cpufreq.h
78262 @@ -200,6 +200,7 @@ struct global_attr {
78263 ssize_t (*store)(struct kobject *a, struct attribute *b,
78264 const char *c, size_t count);
78265 };
78266 +typedef struct global_attr __no_const global_attr_no_const;
78267
78268 #define define_one_global_ro(_name) \
78269 static struct global_attr _name = \
78270 @@ -242,7 +243,7 @@ struct cpufreq_driver {
78271 bool boost_supported;
78272 bool boost_enabled;
78273 int (*set_boost) (int state);
78274 -};
78275 +} __do_const;
78276
78277 /* flags */
78278 #define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
78279 diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
78280 index b0238cb..db89e1e 100644
78281 --- a/include/linux/cpuidle.h
78282 +++ b/include/linux/cpuidle.h
78283 @@ -50,7 +50,8 @@ struct cpuidle_state {
78284 int index);
78285
78286 int (*enter_dead) (struct cpuidle_device *dev, int index);
78287 -};
78288 +} __do_const;
78289 +typedef struct cpuidle_state __no_const cpuidle_state_no_const;
78290
78291 /* Idle State Flags */
78292 #define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */
78293 @@ -211,7 +212,7 @@ struct cpuidle_governor {
78294 void (*reflect) (struct cpuidle_device *dev, int index);
78295
78296 struct module *owner;
78297 -};
78298 +} __do_const;
78299
78300 #ifdef CONFIG_CPU_IDLE
78301 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
78302 diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
78303 index d08e4d2..95fad61 100644
78304 --- a/include/linux/cpumask.h
78305 +++ b/include/linux/cpumask.h
78306 @@ -118,17 +118,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
78307 }
78308
78309 /* Valid inputs for n are -1 and 0. */
78310 -static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
78311 +static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
78312 {
78313 return n+1;
78314 }
78315
78316 -static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
78317 +static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
78318 {
78319 return n+1;
78320 }
78321
78322 -static inline unsigned int cpumask_next_and(int n,
78323 +static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
78324 const struct cpumask *srcp,
78325 const struct cpumask *andp)
78326 {
78327 @@ -167,7 +167,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
78328 *
78329 * Returns >= nr_cpu_ids if no further cpus set.
78330 */
78331 -static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
78332 +static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
78333 {
78334 /* -1 is a legal arg here. */
78335 if (n != -1)
78336 @@ -182,7 +182,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
78337 *
78338 * Returns >= nr_cpu_ids if no further cpus unset.
78339 */
78340 -static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
78341 +static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
78342 {
78343 /* -1 is a legal arg here. */
78344 if (n != -1)
78345 @@ -190,7 +190,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
78346 return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
78347 }
78348
78349 -int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
78350 +int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
78351 int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
78352
78353 /**
78354 diff --git a/include/linux/cred.h b/include/linux/cred.h
78355 index f61d6c8..d372d95 100644
78356 --- a/include/linux/cred.h
78357 +++ b/include/linux/cred.h
78358 @@ -35,7 +35,7 @@ struct group_info {
78359 int nblocks;
78360 kgid_t small_block[NGROUPS_SMALL];
78361 kgid_t *blocks[0];
78362 -};
78363 +} __randomize_layout;
78364
78365 /**
78366 * get_group_info - Get a reference to a group info structure
78367 @@ -136,7 +136,7 @@ struct cred {
78368 struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
78369 struct group_info *group_info; /* supplementary groups for euid/fsgid */
78370 struct rcu_head rcu; /* RCU deletion hook */
78371 -};
78372 +} __randomize_layout;
78373
78374 extern void __put_cred(struct cred *);
78375 extern void exit_creds(struct task_struct *);
78376 @@ -194,6 +194,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
78377 static inline void validate_process_creds(void)
78378 {
78379 }
78380 +static inline void validate_task_creds(struct task_struct *task)
78381 +{
78382 +}
78383 #endif
78384
78385 /**
78386 @@ -322,6 +325,7 @@ static inline void put_cred(const struct cred *_cred)
78387
78388 #define task_uid(task) (task_cred_xxx((task), uid))
78389 #define task_euid(task) (task_cred_xxx((task), euid))
78390 +#define task_securebits(task) (task_cred_xxx((task), securebits))
78391
78392 #define current_cred_xxx(xxx) \
78393 ({ \
78394 diff --git a/include/linux/crypto.h b/include/linux/crypto.h
78395 index b92eadf..b4ecdc1 100644
78396 --- a/include/linux/crypto.h
78397 +++ b/include/linux/crypto.h
78398 @@ -373,7 +373,7 @@ struct cipher_tfm {
78399 const u8 *key, unsigned int keylen);
78400 void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
78401 void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
78402 -};
78403 +} __no_const;
78404
78405 struct hash_tfm {
78406 int (*init)(struct hash_desc *desc);
78407 @@ -394,13 +394,13 @@ struct compress_tfm {
78408 int (*cot_decompress)(struct crypto_tfm *tfm,
78409 const u8 *src, unsigned int slen,
78410 u8 *dst, unsigned int *dlen);
78411 -};
78412 +} __no_const;
78413
78414 struct rng_tfm {
78415 int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
78416 unsigned int dlen);
78417 int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
78418 -};
78419 +} __no_const;
78420
78421 #define crt_ablkcipher crt_u.ablkcipher
78422 #define crt_aead crt_u.aead
78423 diff --git a/include/linux/ctype.h b/include/linux/ctype.h
78424 index 653589e..4ef254a 100644
78425 --- a/include/linux/ctype.h
78426 +++ b/include/linux/ctype.h
78427 @@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
78428 * Fast implementation of tolower() for internal usage. Do not use in your
78429 * code.
78430 */
78431 -static inline char _tolower(const char c)
78432 +static inline unsigned char _tolower(const unsigned char c)
78433 {
78434 return c | 0x20;
78435 }
78436 diff --git a/include/linux/dcache.h b/include/linux/dcache.h
78437 index 3c7ec32..4ca97cc 100644
78438 --- a/include/linux/dcache.h
78439 +++ b/include/linux/dcache.h
78440 @@ -133,7 +133,7 @@ struct dentry {
78441 } d_u;
78442 struct list_head d_subdirs; /* our children */
78443 struct hlist_node d_alias; /* inode alias list */
78444 -};
78445 +} __randomize_layout;
78446
78447 /*
78448 * dentry->d_lock spinlock nesting subclasses:
78449 diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
78450 index 7925bf0..d5143d2 100644
78451 --- a/include/linux/decompress/mm.h
78452 +++ b/include/linux/decompress/mm.h
78453 @@ -77,7 +77,7 @@ static void free(void *where)
78454 * warnings when not needed (indeed large_malloc / large_free are not
78455 * needed by inflate */
78456
78457 -#define malloc(a) kmalloc(a, GFP_KERNEL)
78458 +#define malloc(a) kmalloc((a), GFP_KERNEL)
78459 #define free(a) kfree(a)
78460
78461 #define large_malloc(a) vmalloc(a)
78462 diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
78463 index d48dc00..211ee54 100644
78464 --- a/include/linux/devfreq.h
78465 +++ b/include/linux/devfreq.h
78466 @@ -114,7 +114,7 @@ struct devfreq_governor {
78467 int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
78468 int (*event_handler)(struct devfreq *devfreq,
78469 unsigned int event, void *data);
78470 -};
78471 +} __do_const;
78472
78473 /**
78474 * struct devfreq - Device devfreq structure
78475 diff --git a/include/linux/device.h b/include/linux/device.h
78476 index d1d1c05..a90fdb0 100644
78477 --- a/include/linux/device.h
78478 +++ b/include/linux/device.h
78479 @@ -310,7 +310,7 @@ struct subsys_interface {
78480 struct list_head node;
78481 int (*add_dev)(struct device *dev, struct subsys_interface *sif);
78482 int (*remove_dev)(struct device *dev, struct subsys_interface *sif);
78483 -};
78484 +} __do_const;
78485
78486 int subsys_interface_register(struct subsys_interface *sif);
78487 void subsys_interface_unregister(struct subsys_interface *sif);
78488 @@ -506,7 +506,7 @@ struct device_type {
78489 void (*release)(struct device *dev);
78490
78491 const struct dev_pm_ops *pm;
78492 -};
78493 +} __do_const;
78494
78495 /* interface for exporting device attributes */
78496 struct device_attribute {
78497 @@ -516,11 +516,12 @@ struct device_attribute {
78498 ssize_t (*store)(struct device *dev, struct device_attribute *attr,
78499 const char *buf, size_t count);
78500 };
78501 +typedef struct device_attribute __no_const device_attribute_no_const;
78502
78503 struct dev_ext_attribute {
78504 struct device_attribute attr;
78505 void *var;
78506 -};
78507 +} __do_const;
78508
78509 ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
78510 char *buf);
78511 diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
78512 index fd4aee2..1f28db9 100644
78513 --- a/include/linux/dma-mapping.h
78514 +++ b/include/linux/dma-mapping.h
78515 @@ -54,7 +54,7 @@ struct dma_map_ops {
78516 u64 (*get_required_mask)(struct device *dev);
78517 #endif
78518 int is_phys;
78519 -};
78520 +} __do_const;
78521
78522 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
78523
78524 diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
78525 index 72cb0dd..7fe9a4b 100644
78526 --- a/include/linux/dmaengine.h
78527 +++ b/include/linux/dmaengine.h
78528 @@ -1147,9 +1147,9 @@ struct dma_pinned_list {
78529 struct dma_pinned_list *dma_pin_iovec_pages(struct iovec *iov, size_t len);
78530 void dma_unpin_iovec_pages(struct dma_pinned_list* pinned_list);
78531
78532 -dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
78533 +dma_cookie_t __intentional_overflow(0) dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
78534 struct dma_pinned_list *pinned_list, unsigned char *kdata, size_t len);
78535 -dma_cookie_t dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
78536 +dma_cookie_t __intentional_overflow(0) dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
78537 struct dma_pinned_list *pinned_list, struct page *page,
78538 unsigned int offset, size_t len);
78539
78540 diff --git a/include/linux/efi.h b/include/linux/efi.h
78541 index 6c100ff..e3289b4 100644
78542 --- a/include/linux/efi.h
78543 +++ b/include/linux/efi.h
78544 @@ -1009,6 +1009,7 @@ struct efivar_operations {
78545 efi_set_variable_t *set_variable;
78546 efi_query_variable_store_t *query_variable_store;
78547 };
78548 +typedef struct efivar_operations __no_const efivar_operations_no_const;
78549
78550 struct efivars {
78551 /*
78552 diff --git a/include/linux/elf.h b/include/linux/elf.h
78553 index 67a5fa7..b817372 100644
78554 --- a/include/linux/elf.h
78555 +++ b/include/linux/elf.h
78556 @@ -24,6 +24,7 @@ extern Elf32_Dyn _DYNAMIC [];
78557 #define elf_note elf32_note
78558 #define elf_addr_t Elf32_Off
78559 #define Elf_Half Elf32_Half
78560 +#define elf_dyn Elf32_Dyn
78561
78562 #else
78563
78564 @@ -34,6 +35,7 @@ extern Elf64_Dyn _DYNAMIC [];
78565 #define elf_note elf64_note
78566 #define elf_addr_t Elf64_Off
78567 #define Elf_Half Elf64_Half
78568 +#define elf_dyn Elf64_Dyn
78569
78570 #endif
78571
78572 diff --git a/include/linux/err.h b/include/linux/err.h
78573 index a729120..6ede2c9 100644
78574 --- a/include/linux/err.h
78575 +++ b/include/linux/err.h
78576 @@ -20,12 +20,12 @@
78577
78578 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
78579
78580 -static inline void * __must_check ERR_PTR(long error)
78581 +static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
78582 {
78583 return (void *) error;
78584 }
78585
78586 -static inline long __must_check PTR_ERR(__force const void *ptr)
78587 +static inline long __must_check __intentional_overflow(-1) PTR_ERR(__force const void *ptr)
78588 {
78589 return (long) ptr;
78590 }
78591 diff --git a/include/linux/extcon.h b/include/linux/extcon.h
78592 index f488145..3b6b04e 100644
78593 --- a/include/linux/extcon.h
78594 +++ b/include/linux/extcon.h
78595 @@ -135,7 +135,7 @@ struct extcon_dev {
78596 /* /sys/class/extcon/.../mutually_exclusive/... */
78597 struct attribute_group attr_g_muex;
78598 struct attribute **attrs_muex;
78599 - struct device_attribute *d_attrs_muex;
78600 + device_attribute_no_const *d_attrs_muex;
78601 };
78602
78603 /**
78604 diff --git a/include/linux/fb.h b/include/linux/fb.h
78605 index fe6ac95..898d41d 100644
78606 --- a/include/linux/fb.h
78607 +++ b/include/linux/fb.h
78608 @@ -304,7 +304,7 @@ struct fb_ops {
78609 /* called at KDB enter and leave time to prepare the console */
78610 int (*fb_debug_enter)(struct fb_info *info);
78611 int (*fb_debug_leave)(struct fb_info *info);
78612 -};
78613 +} __do_const;
78614
78615 #ifdef CONFIG_FB_TILEBLITTING
78616 #define FB_TILE_CURSOR_NONE 0
78617 diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
78618 index 230f87b..1fd0485 100644
78619 --- a/include/linux/fdtable.h
78620 +++ b/include/linux/fdtable.h
78621 @@ -100,7 +100,7 @@ struct files_struct *get_files_struct(struct task_struct *);
78622 void put_files_struct(struct files_struct *fs);
78623 void reset_files_struct(struct files_struct *);
78624 int unshare_files(struct files_struct **);
78625 -struct files_struct *dup_fd(struct files_struct *, int *);
78626 +struct files_struct *dup_fd(struct files_struct *, int *) __latent_entropy;
78627 void do_close_on_exec(struct files_struct *);
78628 int iterate_fd(struct files_struct *, unsigned,
78629 int (*)(const void *, struct file *, unsigned),
78630 diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
78631 index 8293262..2b3b8bd 100644
78632 --- a/include/linux/frontswap.h
78633 +++ b/include/linux/frontswap.h
78634 @@ -11,7 +11,7 @@ struct frontswap_ops {
78635 int (*load)(unsigned, pgoff_t, struct page *);
78636 void (*invalidate_page)(unsigned, pgoff_t);
78637 void (*invalidate_area)(unsigned);
78638 -};
78639 +} __no_const;
78640
78641 extern bool frontswap_enabled;
78642 extern struct frontswap_ops *
78643 diff --git a/include/linux/fs.h b/include/linux/fs.h
78644 index 8780312..425cc22 100644
78645 --- a/include/linux/fs.h
78646 +++ b/include/linux/fs.h
78647 @@ -398,7 +398,7 @@ struct address_space {
78648 spinlock_t private_lock; /* for use by the address_space */
78649 struct list_head private_list; /* ditto */
78650 void *private_data; /* ditto */
78651 -} __attribute__((aligned(sizeof(long))));
78652 +} __attribute__((aligned(sizeof(long)))) __randomize_layout;
78653 /*
78654 * On most architectures that alignment is already the case; but
78655 * must be enforced here for CRIS, to let the least significant bit
78656 @@ -441,7 +441,7 @@ struct block_device {
78657 int bd_fsfreeze_count;
78658 /* Mutex for freeze */
78659 struct mutex bd_fsfreeze_mutex;
78660 -};
78661 +} __randomize_layout;
78662
78663 /*
78664 * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
78665 @@ -585,7 +585,7 @@ struct inode {
78666 #endif
78667
78668 void *i_private; /* fs or device private pointer */
78669 -};
78670 +} __randomize_layout;
78671
78672 static inline int inode_unhashed(struct inode *inode)
78673 {
78674 @@ -778,7 +778,7 @@ struct file {
78675 struct list_head f_tfile_llink;
78676 #endif /* #ifdef CONFIG_EPOLL */
78677 struct address_space *f_mapping;
78678 -} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
78679 +} __attribute__((aligned(4))) __randomize_layout; /* lest something weird decides that 2 is OK */
78680
78681 struct file_handle {
78682 __u32 handle_bytes;
78683 @@ -906,7 +906,7 @@ struct file_lock {
78684 int state; /* state of grant or error if -ve */
78685 } afs;
78686 } fl_u;
78687 -};
78688 +} __randomize_layout;
78689
78690 /* The following constant reflects the upper bound of the file/locking space */
78691 #ifndef OFFSET_MAX
78692 @@ -1255,7 +1255,7 @@ struct super_block {
78693 struct list_lru s_dentry_lru ____cacheline_aligned_in_smp;
78694 struct list_lru s_inode_lru ____cacheline_aligned_in_smp;
78695 struct rcu_head rcu;
78696 -};
78697 +} __randomize_layout;
78698
78699 extern struct timespec current_fs_time(struct super_block *sb);
78700
78701 @@ -1477,7 +1477,8 @@ struct file_operations {
78702 long (*fallocate)(struct file *file, int mode, loff_t offset,
78703 loff_t len);
78704 int (*show_fdinfo)(struct seq_file *m, struct file *f);
78705 -};
78706 +} __do_const __randomize_layout;
78707 +typedef struct file_operations __no_const file_operations_no_const;
78708
78709 struct inode_operations {
78710 struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
78711 @@ -2757,4 +2758,14 @@ static inline bool dir_relax(struct inode *inode)
78712 return !IS_DEADDIR(inode);
78713 }
78714
78715 +static inline bool is_sidechannel_device(const struct inode *inode)
78716 +{
78717 +#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
78718 + umode_t mode = inode->i_mode;
78719 + return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
78720 +#else
78721 + return false;
78722 +#endif
78723 +}
78724 +
78725 #endif /* _LINUX_FS_H */
78726 diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
78727 index 0efc3e6..fd23610 100644
78728 --- a/include/linux/fs_struct.h
78729 +++ b/include/linux/fs_struct.h
78730 @@ -6,13 +6,13 @@
78731 #include <linux/seqlock.h>
78732
78733 struct fs_struct {
78734 - int users;
78735 + atomic_t users;
78736 spinlock_t lock;
78737 seqcount_t seq;
78738 int umask;
78739 int in_exec;
78740 struct path root, pwd;
78741 -};
78742 +} __randomize_layout;
78743
78744 extern struct kmem_cache *fs_cachep;
78745
78746 diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
78747 index 7714849..a4a5c7a 100644
78748 --- a/include/linux/fscache-cache.h
78749 +++ b/include/linux/fscache-cache.h
78750 @@ -113,7 +113,7 @@ struct fscache_operation {
78751 fscache_operation_release_t release;
78752 };
78753
78754 -extern atomic_t fscache_op_debug_id;
78755 +extern atomic_unchecked_t fscache_op_debug_id;
78756 extern void fscache_op_work_func(struct work_struct *work);
78757
78758 extern void fscache_enqueue_operation(struct fscache_operation *);
78759 @@ -135,7 +135,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
78760 INIT_WORK(&op->work, fscache_op_work_func);
78761 atomic_set(&op->usage, 1);
78762 op->state = FSCACHE_OP_ST_INITIALISED;
78763 - op->debug_id = atomic_inc_return(&fscache_op_debug_id);
78764 + op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
78765 op->processor = processor;
78766 op->release = release;
78767 INIT_LIST_HEAD(&op->pend_link);
78768 diff --git a/include/linux/fscache.h b/include/linux/fscache.h
78769 index 115bb81..e7b812b 100644
78770 --- a/include/linux/fscache.h
78771 +++ b/include/linux/fscache.h
78772 @@ -152,7 +152,7 @@ struct fscache_cookie_def {
78773 * - this is mandatory for any object that may have data
78774 */
78775 void (*now_uncached)(void *cookie_netfs_data);
78776 -};
78777 +} __do_const;
78778
78779 /*
78780 * fscache cached network filesystem type
78781 diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
78782 index 1c804b0..1432c2b 100644
78783 --- a/include/linux/fsnotify.h
78784 +++ b/include/linux/fsnotify.h
78785 @@ -195,6 +195,9 @@ static inline void fsnotify_access(struct file *file)
78786 struct inode *inode = file_inode(file);
78787 __u32 mask = FS_ACCESS;
78788
78789 + if (is_sidechannel_device(inode))
78790 + return;
78791 +
78792 if (S_ISDIR(inode->i_mode))
78793 mask |= FS_ISDIR;
78794
78795 @@ -213,6 +216,9 @@ static inline void fsnotify_modify(struct file *file)
78796 struct inode *inode = file_inode(file);
78797 __u32 mask = FS_MODIFY;
78798
78799 + if (is_sidechannel_device(inode))
78800 + return;
78801 +
78802 if (S_ISDIR(inode->i_mode))
78803 mask |= FS_ISDIR;
78804
78805 @@ -315,7 +321,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
78806 */
78807 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
78808 {
78809 - return kstrdup(name, GFP_KERNEL);
78810 + return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
78811 }
78812
78813 /*
78814 diff --git a/include/linux/genhd.h b/include/linux/genhd.h
78815 index 9f3c275..8bdff5d 100644
78816 --- a/include/linux/genhd.h
78817 +++ b/include/linux/genhd.h
78818 @@ -194,7 +194,7 @@ struct gendisk {
78819 struct kobject *slave_dir;
78820
78821 struct timer_rand_state *random;
78822 - atomic_t sync_io; /* RAID */
78823 + atomic_unchecked_t sync_io; /* RAID */
78824 struct disk_events *ev;
78825 #ifdef CONFIG_BLK_DEV_INTEGRITY
78826 struct blk_integrity *integrity;
78827 @@ -435,7 +435,7 @@ extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
78828 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
78829
78830 /* drivers/char/random.c */
78831 -extern void add_disk_randomness(struct gendisk *disk);
78832 +extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
78833 extern void rand_initialize_disk(struct gendisk *disk);
78834
78835 static inline sector_t get_start_sect(struct block_device *bdev)
78836 diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
78837 index c0894dd..2fbf10c 100644
78838 --- a/include/linux/genl_magic_func.h
78839 +++ b/include/linux/genl_magic_func.h
78840 @@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
78841 },
78842
78843 #define ZZZ_genl_ops CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
78844 -static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
78845 +static struct genl_ops ZZZ_genl_ops[] = {
78846 #include GENL_MAGIC_INCLUDE_FILE
78847 };
78848
78849 diff --git a/include/linux/gfp.h b/include/linux/gfp.h
78850 index 39b81dc..819dc51 100644
78851 --- a/include/linux/gfp.h
78852 +++ b/include/linux/gfp.h
78853 @@ -36,6 +36,13 @@ struct vm_area_struct;
78854 #define ___GFP_NO_KSWAPD 0x400000u
78855 #define ___GFP_OTHER_NODE 0x800000u
78856 #define ___GFP_WRITE 0x1000000u
78857 +
78858 +#ifdef CONFIG_PAX_USERCOPY_SLABS
78859 +#define ___GFP_USERCOPY 0x2000000u
78860 +#else
78861 +#define ___GFP_USERCOPY 0
78862 +#endif
78863 +
78864 /* If the above are modified, __GFP_BITS_SHIFT may need updating */
78865
78866 /*
78867 @@ -93,6 +100,7 @@ struct vm_area_struct;
78868 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
78869 #define __GFP_KMEMCG ((__force gfp_t)___GFP_KMEMCG) /* Allocation comes from a memcg-accounted resource */
78870 #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */
78871 +#define __GFP_USERCOPY ((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
78872
78873 /*
78874 * This may seem redundant, but it's a way of annotating false positives vs.
78875 @@ -100,7 +108,7 @@ struct vm_area_struct;
78876 */
78877 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
78878
78879 -#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */
78880 +#define __GFP_BITS_SHIFT 26 /* Room for N __GFP_FOO bits */
78881 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
78882
78883 /* This equals 0, but use constants in case they ever change */
78884 @@ -158,6 +166,8 @@ struct vm_area_struct;
78885 /* 4GB DMA on some platforms */
78886 #define GFP_DMA32 __GFP_DMA32
78887
78888 +#define GFP_USERCOPY __GFP_USERCOPY
78889 +
78890 /* Convert GFP flags to their corresponding migrate type */
78891 static inline int allocflags_to_migratetype(gfp_t gfp_flags)
78892 {
78893 diff --git a/include/linux/gracl.h b/include/linux/gracl.h
78894 new file mode 100644
78895 index 0000000..edb2cb6
78896 --- /dev/null
78897 +++ b/include/linux/gracl.h
78898 @@ -0,0 +1,340 @@
78899 +#ifndef GR_ACL_H
78900 +#define GR_ACL_H
78901 +
78902 +#include <linux/grdefs.h>
78903 +#include <linux/resource.h>
78904 +#include <linux/capability.h>
78905 +#include <linux/dcache.h>
78906 +#include <asm/resource.h>
78907 +
78908 +/* Major status information */
78909 +
78910 +#define GR_VERSION "grsecurity 3.0"
78911 +#define GRSECURITY_VERSION 0x3000
78912 +
78913 +enum {
78914 + GR_SHUTDOWN = 0,
78915 + GR_ENABLE = 1,
78916 + GR_SPROLE = 2,
78917 + GR_OLDRELOAD = 3,
78918 + GR_SEGVMOD = 4,
78919 + GR_STATUS = 5,
78920 + GR_UNSPROLE = 6,
78921 + GR_PASSSET = 7,
78922 + GR_SPROLEPAM = 8,
78923 + GR_RELOAD = 9,
78924 +};
78925 +
78926 +/* Password setup definitions
78927 + * kernel/grhash.c */
78928 +enum {
78929 + GR_PW_LEN = 128,
78930 + GR_SALT_LEN = 16,
78931 + GR_SHA_LEN = 32,
78932 +};
78933 +
78934 +enum {
78935 + GR_SPROLE_LEN = 64,
78936 +};
78937 +
78938 +enum {
78939 + GR_NO_GLOB = 0,
78940 + GR_REG_GLOB,
78941 + GR_CREATE_GLOB
78942 +};
78943 +
78944 +#define GR_NLIMITS 32
78945 +
78946 +/* Begin Data Structures */
78947 +
78948 +struct sprole_pw {
78949 + unsigned char *rolename;
78950 + unsigned char salt[GR_SALT_LEN];
78951 + unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
78952 +};
78953 +
78954 +struct name_entry {
78955 + __u32 key;
78956 + ino_t inode;
78957 + dev_t device;
78958 + char *name;
78959 + __u16 len;
78960 + __u8 deleted;
78961 + struct name_entry *prev;
78962 + struct name_entry *next;
78963 +};
78964 +
78965 +struct inodev_entry {
78966 + struct name_entry *nentry;
78967 + struct inodev_entry *prev;
78968 + struct inodev_entry *next;
78969 +};
78970 +
78971 +struct acl_role_db {
78972 + struct acl_role_label **r_hash;
78973 + __u32 r_size;
78974 +};
78975 +
78976 +struct inodev_db {
78977 + struct inodev_entry **i_hash;
78978 + __u32 i_size;
78979 +};
78980 +
78981 +struct name_db {
78982 + struct name_entry **n_hash;
78983 + __u32 n_size;
78984 +};
78985 +
78986 +struct crash_uid {
78987 + uid_t uid;
78988 + unsigned long expires;
78989 +};
78990 +
78991 +struct gr_hash_struct {
78992 + void **table;
78993 + void **nametable;
78994 + void *first;
78995 + __u32 table_size;
78996 + __u32 used_size;
78997 + int type;
78998 +};
78999 +
79000 +/* Userspace Grsecurity ACL data structures */
79001 +
79002 +struct acl_subject_label {
79003 + char *filename;
79004 + ino_t inode;
79005 + dev_t device;
79006 + __u32 mode;
79007 + kernel_cap_t cap_mask;
79008 + kernel_cap_t cap_lower;
79009 + kernel_cap_t cap_invert_audit;
79010 +
79011 + struct rlimit res[GR_NLIMITS];
79012 + __u32 resmask;
79013 +
79014 + __u8 user_trans_type;
79015 + __u8 group_trans_type;
79016 + uid_t *user_transitions;
79017 + gid_t *group_transitions;
79018 + __u16 user_trans_num;
79019 + __u16 group_trans_num;
79020 +
79021 + __u32 sock_families[2];
79022 + __u32 ip_proto[8];
79023 + __u32 ip_type;
79024 + struct acl_ip_label **ips;
79025 + __u32 ip_num;
79026 + __u32 inaddr_any_override;
79027 +
79028 + __u32 crashes;
79029 + unsigned long expires;
79030 +
79031 + struct acl_subject_label *parent_subject;
79032 + struct gr_hash_struct *hash;
79033 + struct acl_subject_label *prev;
79034 + struct acl_subject_label *next;
79035 +
79036 + struct acl_object_label **obj_hash;
79037 + __u32 obj_hash_size;
79038 + __u16 pax_flags;
79039 +};
79040 +
79041 +struct role_allowed_ip {
79042 + __u32 addr;
79043 + __u32 netmask;
79044 +
79045 + struct role_allowed_ip *prev;
79046 + struct role_allowed_ip *next;
79047 +};
79048 +
79049 +struct role_transition {
79050 + char *rolename;
79051 +
79052 + struct role_transition *prev;
79053 + struct role_transition *next;
79054 +};
79055 +
79056 +struct acl_role_label {
79057 + char *rolename;
79058 + uid_t uidgid;
79059 + __u16 roletype;
79060 +
79061 + __u16 auth_attempts;
79062 + unsigned long expires;
79063 +
79064 + struct acl_subject_label *root_label;
79065 + struct gr_hash_struct *hash;
79066 +
79067 + struct acl_role_label *prev;
79068 + struct acl_role_label *next;
79069 +
79070 + struct role_transition *transitions;
79071 + struct role_allowed_ip *allowed_ips;
79072 + uid_t *domain_children;
79073 + __u16 domain_child_num;
79074 +
79075 + umode_t umask;
79076 +
79077 + struct acl_subject_label **subj_hash;
79078 + __u32 subj_hash_size;
79079 +};
79080 +
79081 +struct user_acl_role_db {
79082 + struct acl_role_label **r_table;
79083 + __u32 num_pointers; /* Number of allocations to track */
79084 + __u32 num_roles; /* Number of roles */
79085 + __u32 num_domain_children; /* Number of domain children */
79086 + __u32 num_subjects; /* Number of subjects */
79087 + __u32 num_objects; /* Number of objects */
79088 +};
79089 +
79090 +struct acl_object_label {
79091 + char *filename;
79092 + ino_t inode;
79093 + dev_t device;
79094 + __u32 mode;
79095 +
79096 + struct acl_subject_label *nested;
79097 + struct acl_object_label *globbed;
79098 +
79099 + /* next two structures not used */
79100 +
79101 + struct acl_object_label *prev;
79102 + struct acl_object_label *next;
79103 +};
79104 +
79105 +struct acl_ip_label {
79106 + char *iface;
79107 + __u32 addr;
79108 + __u32 netmask;
79109 + __u16 low, high;
79110 + __u8 mode;
79111 + __u32 type;
79112 + __u32 proto[8];
79113 +
79114 + /* next two structures not used */
79115 +
79116 + struct acl_ip_label *prev;
79117 + struct acl_ip_label *next;
79118 +};
79119 +
79120 +struct gr_arg {
79121 + struct user_acl_role_db role_db;
79122 + unsigned char pw[GR_PW_LEN];
79123 + unsigned char salt[GR_SALT_LEN];
79124 + unsigned char sum[GR_SHA_LEN];
79125 + unsigned char sp_role[GR_SPROLE_LEN];
79126 + struct sprole_pw *sprole_pws;
79127 + dev_t segv_device;
79128 + ino_t segv_inode;
79129 + uid_t segv_uid;
79130 + __u16 num_sprole_pws;
79131 + __u16 mode;
79132 +};
79133 +
79134 +struct gr_arg_wrapper {
79135 + struct gr_arg *arg;
79136 + __u32 version;
79137 + __u32 size;
79138 +};
79139 +
79140 +struct subject_map {
79141 + struct acl_subject_label *user;
79142 + struct acl_subject_label *kernel;
79143 + struct subject_map *prev;
79144 + struct subject_map *next;
79145 +};
79146 +
79147 +struct acl_subj_map_db {
79148 + struct subject_map **s_hash;
79149 + __u32 s_size;
79150 +};
79151 +
79152 +struct gr_policy_state {
79153 + struct sprole_pw **acl_special_roles;
79154 + __u16 num_sprole_pws;
79155 + struct acl_role_label *kernel_role;
79156 + struct acl_role_label *role_list;
79157 + struct acl_role_label *default_role;
79158 + struct acl_role_db acl_role_set;
79159 + struct acl_subj_map_db subj_map_set;
79160 + struct name_db name_set;
79161 + struct inodev_db inodev_set;
79162 +};
79163 +
79164 +struct gr_alloc_state {
79165 + unsigned long alloc_stack_next;
79166 + unsigned long alloc_stack_size;
79167 + void **alloc_stack;
79168 +};
79169 +
79170 +struct gr_reload_state {
79171 + struct gr_policy_state oldpolicy;
79172 + struct gr_alloc_state oldalloc;
79173 + struct gr_policy_state newpolicy;
79174 + struct gr_alloc_state newalloc;
79175 + struct gr_policy_state *oldpolicy_ptr;
79176 + struct gr_alloc_state *oldalloc_ptr;
79177 + unsigned char oldmode;
79178 +};
79179 +
79180 +/* End Data Structures Section */
79181 +
79182 +/* Hash functions generated by empirical testing by Brad Spengler
79183 + Makes good use of the low bits of the inode. Generally 0-1 times
79184 + in loop for successful match. 0-3 for unsuccessful match.
79185 + Shift/add algorithm with modulus of table size and an XOR*/
79186 +
79187 +static __inline__ unsigned int
79188 +gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
79189 +{
79190 + return ((((uid + type) << (16 + type)) ^ uid) % sz);
79191 +}
79192 +
79193 + static __inline__ unsigned int
79194 +gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
79195 +{
79196 + return ((const unsigned long)userp % sz);
79197 +}
79198 +
79199 +static __inline__ unsigned int
79200 +gr_fhash(const ino_t ino, const dev_t dev, const unsigned int sz)
79201 +{
79202 + return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz);
79203 +}
79204 +
79205 +static __inline__ unsigned int
79206 +gr_nhash(const char *name, const __u16 len, const unsigned int sz)
79207 +{
79208 + return full_name_hash((const unsigned char *)name, len) % sz;
79209 +}
79210 +
79211 +#define FOR_EACH_SUBJECT_START(role,subj,iter) \
79212 + subj = NULL; \
79213 + iter = 0; \
79214 + while (iter < role->subj_hash_size) { \
79215 + if (subj == NULL) \
79216 + subj = role->subj_hash[iter]; \
79217 + if (subj == NULL) { \
79218 + iter++; \
79219 + continue; \
79220 + }
79221 +
79222 +#define FOR_EACH_SUBJECT_END(subj,iter) \
79223 + subj = subj->next; \
79224 + if (subj == NULL) \
79225 + iter++; \
79226 + }
79227 +
79228 +
79229 +#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
79230 + subj = role->hash->first; \
79231 + while (subj != NULL) {
79232 +
79233 +#define FOR_EACH_NESTED_SUBJECT_END(subj) \
79234 + subj = subj->next; \
79235 + }
79236 +
79237 +#endif
79238 +
79239 diff --git a/include/linux/gracl_compat.h b/include/linux/gracl_compat.h
79240 new file mode 100644
79241 index 0000000..33ebd1f
79242 --- /dev/null
79243 +++ b/include/linux/gracl_compat.h
79244 @@ -0,0 +1,156 @@
79245 +#ifndef GR_ACL_COMPAT_H
79246 +#define GR_ACL_COMPAT_H
79247 +
79248 +#include <linux/resource.h>
79249 +#include <asm/resource.h>
79250 +
79251 +struct sprole_pw_compat {
79252 + compat_uptr_t rolename;
79253 + unsigned char salt[GR_SALT_LEN];
79254 + unsigned char sum[GR_SHA_LEN];
79255 +};
79256 +
79257 +struct gr_hash_struct_compat {
79258 + compat_uptr_t table;
79259 + compat_uptr_t nametable;
79260 + compat_uptr_t first;
79261 + __u32 table_size;
79262 + __u32 used_size;
79263 + int type;
79264 +};
79265 +
79266 +struct acl_subject_label_compat {
79267 + compat_uptr_t filename;
79268 + compat_ino_t inode;
79269 + __u32 device;
79270 + __u32 mode;
79271 + kernel_cap_t cap_mask;
79272 + kernel_cap_t cap_lower;
79273 + kernel_cap_t cap_invert_audit;
79274 +
79275 + struct compat_rlimit res[GR_NLIMITS];
79276 + __u32 resmask;
79277 +
79278 + __u8 user_trans_type;
79279 + __u8 group_trans_type;
79280 + compat_uptr_t user_transitions;
79281 + compat_uptr_t group_transitions;
79282 + __u16 user_trans_num;
79283 + __u16 group_trans_num;
79284 +
79285 + __u32 sock_families[2];
79286 + __u32 ip_proto[8];
79287 + __u32 ip_type;
79288 + compat_uptr_t ips;
79289 + __u32 ip_num;
79290 + __u32 inaddr_any_override;
79291 +
79292 + __u32 crashes;
79293 + compat_ulong_t expires;
79294 +
79295 + compat_uptr_t parent_subject;
79296 + compat_uptr_t hash;
79297 + compat_uptr_t prev;
79298 + compat_uptr_t next;
79299 +
79300 + compat_uptr_t obj_hash;
79301 + __u32 obj_hash_size;
79302 + __u16 pax_flags;
79303 +};
79304 +
79305 +struct role_allowed_ip_compat {
79306 + __u32 addr;
79307 + __u32 netmask;
79308 +
79309 + compat_uptr_t prev;
79310 + compat_uptr_t next;
79311 +};
79312 +
79313 +struct role_transition_compat {
79314 + compat_uptr_t rolename;
79315 +
79316 + compat_uptr_t prev;
79317 + compat_uptr_t next;
79318 +};
79319 +
79320 +struct acl_role_label_compat {
79321 + compat_uptr_t rolename;
79322 + uid_t uidgid;
79323 + __u16 roletype;
79324 +
79325 + __u16 auth_attempts;
79326 + compat_ulong_t expires;
79327 +
79328 + compat_uptr_t root_label;
79329 + compat_uptr_t hash;
79330 +
79331 + compat_uptr_t prev;
79332 + compat_uptr_t next;
79333 +
79334 + compat_uptr_t transitions;
79335 + compat_uptr_t allowed_ips;
79336 + compat_uptr_t domain_children;
79337 + __u16 domain_child_num;
79338 +
79339 + umode_t umask;
79340 +
79341 + compat_uptr_t subj_hash;
79342 + __u32 subj_hash_size;
79343 +};
79344 +
79345 +struct user_acl_role_db_compat {
79346 + compat_uptr_t r_table;
79347 + __u32 num_pointers;
79348 + __u32 num_roles;
79349 + __u32 num_domain_children;
79350 + __u32 num_subjects;
79351 + __u32 num_objects;
79352 +};
79353 +
79354 +struct acl_object_label_compat {
79355 + compat_uptr_t filename;
79356 + compat_ino_t inode;
79357 + __u32 device;
79358 + __u32 mode;
79359 +
79360 + compat_uptr_t nested;
79361 + compat_uptr_t globbed;
79362 +
79363 + compat_uptr_t prev;
79364 + compat_uptr_t next;
79365 +};
79366 +
79367 +struct acl_ip_label_compat {
79368 + compat_uptr_t iface;
79369 + __u32 addr;
79370 + __u32 netmask;
79371 + __u16 low, high;
79372 + __u8 mode;
79373 + __u32 type;
79374 + __u32 proto[8];
79375 +
79376 + compat_uptr_t prev;
79377 + compat_uptr_t next;
79378 +};
79379 +
79380 +struct gr_arg_compat {
79381 + struct user_acl_role_db_compat role_db;
79382 + unsigned char pw[GR_PW_LEN];
79383 + unsigned char salt[GR_SALT_LEN];
79384 + unsigned char sum[GR_SHA_LEN];
79385 + unsigned char sp_role[GR_SPROLE_LEN];
79386 + compat_uptr_t sprole_pws;
79387 + __u32 segv_device;
79388 + compat_ino_t segv_inode;
79389 + uid_t segv_uid;
79390 + __u16 num_sprole_pws;
79391 + __u16 mode;
79392 +};
79393 +
79394 +struct gr_arg_wrapper_compat {
79395 + compat_uptr_t arg;
79396 + __u32 version;
79397 + __u32 size;
79398 +};
79399 +
79400 +#endif
79401 diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
79402 new file mode 100644
79403 index 0000000..323ecf2
79404 --- /dev/null
79405 +++ b/include/linux/gralloc.h
79406 @@ -0,0 +1,9 @@
79407 +#ifndef __GRALLOC_H
79408 +#define __GRALLOC_H
79409 +
79410 +void acl_free_all(void);
79411 +int acl_alloc_stack_init(unsigned long size);
79412 +void *acl_alloc(unsigned long len);
79413 +void *acl_alloc_num(unsigned long num, unsigned long len);
79414 +
79415 +#endif
79416 diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
79417 new file mode 100644
79418 index 0000000..be66033
79419 --- /dev/null
79420 +++ b/include/linux/grdefs.h
79421 @@ -0,0 +1,140 @@
79422 +#ifndef GRDEFS_H
79423 +#define GRDEFS_H
79424 +
79425 +/* Begin grsecurity status declarations */
79426 +
79427 +enum {
79428 + GR_READY = 0x01,
79429 + GR_STATUS_INIT = 0x00 // disabled state
79430 +};
79431 +
79432 +/* Begin ACL declarations */
79433 +
79434 +/* Role flags */
79435 +
79436 +enum {
79437 + GR_ROLE_USER = 0x0001,
79438 + GR_ROLE_GROUP = 0x0002,
79439 + GR_ROLE_DEFAULT = 0x0004,
79440 + GR_ROLE_SPECIAL = 0x0008,
79441 + GR_ROLE_AUTH = 0x0010,
79442 + GR_ROLE_NOPW = 0x0020,
79443 + GR_ROLE_GOD = 0x0040,
79444 + GR_ROLE_LEARN = 0x0080,
79445 + GR_ROLE_TPE = 0x0100,
79446 + GR_ROLE_DOMAIN = 0x0200,
79447 + GR_ROLE_PAM = 0x0400,
79448 + GR_ROLE_PERSIST = 0x0800
79449 +};
79450 +
79451 +/* ACL Subject and Object mode flags */
79452 +enum {
79453 + GR_DELETED = 0x80000000
79454 +};
79455 +
79456 +/* ACL Object-only mode flags */
79457 +enum {
79458 + GR_READ = 0x00000001,
79459 + GR_APPEND = 0x00000002,
79460 + GR_WRITE = 0x00000004,
79461 + GR_EXEC = 0x00000008,
79462 + GR_FIND = 0x00000010,
79463 + GR_INHERIT = 0x00000020,
79464 + GR_SETID = 0x00000040,
79465 + GR_CREATE = 0x00000080,
79466 + GR_DELETE = 0x00000100,
79467 + GR_LINK = 0x00000200,
79468 + GR_AUDIT_READ = 0x00000400,
79469 + GR_AUDIT_APPEND = 0x00000800,
79470 + GR_AUDIT_WRITE = 0x00001000,
79471 + GR_AUDIT_EXEC = 0x00002000,
79472 + GR_AUDIT_FIND = 0x00004000,
79473 + GR_AUDIT_INHERIT= 0x00008000,
79474 + GR_AUDIT_SETID = 0x00010000,
79475 + GR_AUDIT_CREATE = 0x00020000,
79476 + GR_AUDIT_DELETE = 0x00040000,
79477 + GR_AUDIT_LINK = 0x00080000,
79478 + GR_PTRACERD = 0x00100000,
79479 + GR_NOPTRACE = 0x00200000,
79480 + GR_SUPPRESS = 0x00400000,
79481 + GR_NOLEARN = 0x00800000,
79482 + GR_INIT_TRANSFER= 0x01000000
79483 +};
79484 +
79485 +#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
79486 + GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
79487 + GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
79488 +
79489 +/* ACL subject-only mode flags */
79490 +enum {
79491 + GR_KILL = 0x00000001,
79492 + GR_VIEW = 0x00000002,
79493 + GR_PROTECTED = 0x00000004,
79494 + GR_LEARN = 0x00000008,
79495 + GR_OVERRIDE = 0x00000010,
79496 + /* just a placeholder, this mode is only used in userspace */
79497 + GR_DUMMY = 0x00000020,
79498 + GR_PROTSHM = 0x00000040,
79499 + GR_KILLPROC = 0x00000080,
79500 + GR_KILLIPPROC = 0x00000100,
79501 + /* just a placeholder, this mode is only used in userspace */
79502 + GR_NOTROJAN = 0x00000200,
79503 + GR_PROTPROCFD = 0x00000400,
79504 + GR_PROCACCT = 0x00000800,
79505 + GR_RELAXPTRACE = 0x00001000,
79506 + //GR_NESTED = 0x00002000,
79507 + GR_INHERITLEARN = 0x00004000,
79508 + GR_PROCFIND = 0x00008000,
79509 + GR_POVERRIDE = 0x00010000,
79510 + GR_KERNELAUTH = 0x00020000,
79511 + GR_ATSECURE = 0x00040000,
79512 + GR_SHMEXEC = 0x00080000
79513 +};
79514 +
79515 +enum {
79516 + GR_PAX_ENABLE_SEGMEXEC = 0x0001,
79517 + GR_PAX_ENABLE_PAGEEXEC = 0x0002,
79518 + GR_PAX_ENABLE_MPROTECT = 0x0004,
79519 + GR_PAX_ENABLE_RANDMMAP = 0x0008,
79520 + GR_PAX_ENABLE_EMUTRAMP = 0x0010,
79521 + GR_PAX_DISABLE_SEGMEXEC = 0x0100,
79522 + GR_PAX_DISABLE_PAGEEXEC = 0x0200,
79523 + GR_PAX_DISABLE_MPROTECT = 0x0400,
79524 + GR_PAX_DISABLE_RANDMMAP = 0x0800,
79525 + GR_PAX_DISABLE_EMUTRAMP = 0x1000,
79526 +};
79527 +
79528 +enum {
79529 + GR_ID_USER = 0x01,
79530 + GR_ID_GROUP = 0x02,
79531 +};
79532 +
79533 +enum {
79534 + GR_ID_ALLOW = 0x01,
79535 + GR_ID_DENY = 0x02,
79536 +};
79537 +
79538 +#define GR_CRASH_RES 31
79539 +#define GR_UIDTABLE_MAX 500
79540 +
79541 +/* begin resource learning section */
79542 +enum {
79543 + GR_RLIM_CPU_BUMP = 60,
79544 + GR_RLIM_FSIZE_BUMP = 50000,
79545 + GR_RLIM_DATA_BUMP = 10000,
79546 + GR_RLIM_STACK_BUMP = 1000,
79547 + GR_RLIM_CORE_BUMP = 10000,
79548 + GR_RLIM_RSS_BUMP = 500000,
79549 + GR_RLIM_NPROC_BUMP = 1,
79550 + GR_RLIM_NOFILE_BUMP = 5,
79551 + GR_RLIM_MEMLOCK_BUMP = 50000,
79552 + GR_RLIM_AS_BUMP = 500000,
79553 + GR_RLIM_LOCKS_BUMP = 2,
79554 + GR_RLIM_SIGPENDING_BUMP = 5,
79555 + GR_RLIM_MSGQUEUE_BUMP = 10000,
79556 + GR_RLIM_NICE_BUMP = 1,
79557 + GR_RLIM_RTPRIO_BUMP = 1,
79558 + GR_RLIM_RTTIME_BUMP = 1000000
79559 +};
79560 +
79561 +#endif
79562 diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
79563 new file mode 100644
79564 index 0000000..d25522e
79565 --- /dev/null
79566 +++ b/include/linux/grinternal.h
79567 @@ -0,0 +1,229 @@
79568 +#ifndef __GRINTERNAL_H
79569 +#define __GRINTERNAL_H
79570 +
79571 +#ifdef CONFIG_GRKERNSEC
79572 +
79573 +#include <linux/fs.h>
79574 +#include <linux/mnt_namespace.h>
79575 +#include <linux/nsproxy.h>
79576 +#include <linux/gracl.h>
79577 +#include <linux/grdefs.h>
79578 +#include <linux/grmsg.h>
79579 +
79580 +void gr_add_learn_entry(const char *fmt, ...)
79581 + __attribute__ ((format (printf, 1, 2)));
79582 +__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
79583 + const struct vfsmount *mnt);
79584 +__u32 gr_check_create(const struct dentry *new_dentry,
79585 + const struct dentry *parent,
79586 + const struct vfsmount *mnt, const __u32 mode);
79587 +int gr_check_protected_task(const struct task_struct *task);
79588 +__u32 to_gr_audit(const __u32 reqmode);
79589 +int gr_set_acls(const int type);
79590 +int gr_acl_is_enabled(void);
79591 +char gr_roletype_to_char(void);
79592 +
79593 +void gr_handle_alertkill(struct task_struct *task);
79594 +char *gr_to_filename(const struct dentry *dentry,
79595 + const struct vfsmount *mnt);
79596 +char *gr_to_filename1(const struct dentry *dentry,
79597 + const struct vfsmount *mnt);
79598 +char *gr_to_filename2(const struct dentry *dentry,
79599 + const struct vfsmount *mnt);
79600 +char *gr_to_filename3(const struct dentry *dentry,
79601 + const struct vfsmount *mnt);
79602 +
79603 +extern int grsec_enable_ptrace_readexec;
79604 +extern int grsec_enable_harden_ptrace;
79605 +extern int grsec_enable_link;
79606 +extern int grsec_enable_fifo;
79607 +extern int grsec_enable_execve;
79608 +extern int grsec_enable_shm;
79609 +extern int grsec_enable_execlog;
79610 +extern int grsec_enable_signal;
79611 +extern int grsec_enable_audit_ptrace;
79612 +extern int grsec_enable_forkfail;
79613 +extern int grsec_enable_time;
79614 +extern int grsec_enable_rofs;
79615 +extern int grsec_deny_new_usb;
79616 +extern int grsec_enable_chroot_shmat;
79617 +extern int grsec_enable_chroot_mount;
79618 +extern int grsec_enable_chroot_double;
79619 +extern int grsec_enable_chroot_pivot;
79620 +extern int grsec_enable_chroot_chdir;
79621 +extern int grsec_enable_chroot_chmod;
79622 +extern int grsec_enable_chroot_mknod;
79623 +extern int grsec_enable_chroot_fchdir;
79624 +extern int grsec_enable_chroot_nice;
79625 +extern int grsec_enable_chroot_execlog;
79626 +extern int grsec_enable_chroot_caps;
79627 +extern int grsec_enable_chroot_sysctl;
79628 +extern int grsec_enable_chroot_unix;
79629 +extern int grsec_enable_symlinkown;
79630 +extern kgid_t grsec_symlinkown_gid;
79631 +extern int grsec_enable_tpe;
79632 +extern kgid_t grsec_tpe_gid;
79633 +extern int grsec_enable_tpe_all;
79634 +extern int grsec_enable_tpe_invert;
79635 +extern int grsec_enable_socket_all;
79636 +extern kgid_t grsec_socket_all_gid;
79637 +extern int grsec_enable_socket_client;
79638 +extern kgid_t grsec_socket_client_gid;
79639 +extern int grsec_enable_socket_server;
79640 +extern kgid_t grsec_socket_server_gid;
79641 +extern kgid_t grsec_audit_gid;
79642 +extern int grsec_enable_group;
79643 +extern int grsec_enable_log_rwxmaps;
79644 +extern int grsec_enable_mount;
79645 +extern int grsec_enable_chdir;
79646 +extern int grsec_resource_logging;
79647 +extern int grsec_enable_blackhole;
79648 +extern int grsec_lastack_retries;
79649 +extern int grsec_enable_brute;
79650 +extern int grsec_enable_harden_ipc;
79651 +extern int grsec_lock;
79652 +
79653 +extern spinlock_t grsec_alert_lock;
79654 +extern unsigned long grsec_alert_wtime;
79655 +extern unsigned long grsec_alert_fyet;
79656 +
79657 +extern spinlock_t grsec_audit_lock;
79658 +
79659 +extern rwlock_t grsec_exec_file_lock;
79660 +
79661 +#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
79662 + gr_to_filename2((tsk)->exec_file->f_path.dentry, \
79663 + (tsk)->exec_file->f_path.mnt) : "/")
79664 +
79665 +#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
79666 + gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
79667 + (tsk)->real_parent->exec_file->f_path.mnt) : "/")
79668 +
79669 +#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
79670 + gr_to_filename((tsk)->exec_file->f_path.dentry, \
79671 + (tsk)->exec_file->f_path.mnt) : "/")
79672 +
79673 +#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
79674 + gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
79675 + (tsk)->real_parent->exec_file->f_path.mnt) : "/")
79676 +
79677 +#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted)
79678 +
79679 +#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
79680 +
79681 +static inline bool gr_is_same_file(const struct file *file1, const struct file *file2)
79682 +{
79683 + if (file1 && file2) {
79684 + const struct inode *inode1 = file1->f_path.dentry->d_inode;
79685 + const struct inode *inode2 = file2->f_path.dentry->d_inode;
79686 + if (inode1->i_ino == inode2->i_ino && inode1->i_sb->s_dev == inode2->i_sb->s_dev)
79687 + return true;
79688 + }
79689 +
79690 + return false;
79691 +}
79692 +
79693 +#define GR_CHROOT_CAPS {{ \
79694 + CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
79695 + CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
79696 + CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
79697 + CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
79698 + CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
79699 + CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
79700 + CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
79701 +
79702 +#define security_learn(normal_msg,args...) \
79703 +({ \
79704 + read_lock(&grsec_exec_file_lock); \
79705 + gr_add_learn_entry(normal_msg "\n", ## args); \
79706 + read_unlock(&grsec_exec_file_lock); \
79707 +})
79708 +
79709 +enum {
79710 + GR_DO_AUDIT,
79711 + GR_DONT_AUDIT,
79712 + /* used for non-audit messages that we shouldn't kill the task on */
79713 + GR_DONT_AUDIT_GOOD
79714 +};
79715 +
79716 +enum {
79717 + GR_TTYSNIFF,
79718 + GR_RBAC,
79719 + GR_RBAC_STR,
79720 + GR_STR_RBAC,
79721 + GR_RBAC_MODE2,
79722 + GR_RBAC_MODE3,
79723 + GR_FILENAME,
79724 + GR_SYSCTL_HIDDEN,
79725 + GR_NOARGS,
79726 + GR_ONE_INT,
79727 + GR_ONE_INT_TWO_STR,
79728 + GR_ONE_STR,
79729 + GR_STR_INT,
79730 + GR_TWO_STR_INT,
79731 + GR_TWO_INT,
79732 + GR_TWO_U64,
79733 + GR_THREE_INT,
79734 + GR_FIVE_INT_TWO_STR,
79735 + GR_TWO_STR,
79736 + GR_THREE_STR,
79737 + GR_FOUR_STR,
79738 + GR_STR_FILENAME,
79739 + GR_FILENAME_STR,
79740 + GR_FILENAME_TWO_INT,
79741 + GR_FILENAME_TWO_INT_STR,
79742 + GR_TEXTREL,
79743 + GR_PTRACE,
79744 + GR_RESOURCE,
79745 + GR_CAP,
79746 + GR_SIG,
79747 + GR_SIG2,
79748 + GR_CRASH1,
79749 + GR_CRASH2,
79750 + GR_PSACCT,
79751 + GR_RWXMAP,
79752 + GR_RWXMAPVMA
79753 +};
79754 +
79755 +#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
79756 +#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
79757 +#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
79758 +#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
79759 +#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
79760 +#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
79761 +#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
79762 +#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
79763 +#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
79764 +#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
79765 +#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
79766 +#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
79767 +#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
79768 +#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
79769 +#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
79770 +#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
79771 +#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
79772 +#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
79773 +#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
79774 +#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
79775 +#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
79776 +#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
79777 +#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
79778 +#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
79779 +#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
79780 +#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
79781 +#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
79782 +#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
79783 +#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
79784 +#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
79785 +#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
79786 +#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
79787 +#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
79788 +#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
79789 +#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
79790 +#define gr_log_rwxmap_vma(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAPVMA, str)
79791 +
79792 +void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
79793 +
79794 +#endif
79795 +
79796 +#endif
79797 diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
79798 new file mode 100644
79799 index 0000000..b02ba9d
79800 --- /dev/null
79801 +++ b/include/linux/grmsg.h
79802 @@ -0,0 +1,117 @@
79803 +#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
79804 +#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
79805 +#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
79806 +#define GR_STOPMOD_MSG "denied modification of module state by "
79807 +#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
79808 +#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
79809 +#define GR_IOPERM_MSG "denied use of ioperm() by "
79810 +#define GR_IOPL_MSG "denied use of iopl() by "
79811 +#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
79812 +#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
79813 +#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
79814 +#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
79815 +#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
79816 +#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4"
79817 +#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4"
79818 +#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
79819 +#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
79820 +#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
79821 +#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
79822 +#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
79823 +#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
79824 +#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
79825 +#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
79826 +#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
79827 +#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
79828 +#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
79829 +#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
79830 +#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
79831 +#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
79832 +#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
79833 +#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
79834 +#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
79835 +#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
79836 +#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
79837 +#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
79838 +#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
79839 +#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
79840 +#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
79841 +#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
79842 +#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
79843 +#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
79844 +#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
79845 +#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
79846 +#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
79847 +#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
79848 +#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
79849 +#define GR_CHROOT_FHANDLE_MSG "denied use of file handles inside chroot by "
79850 +#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
79851 +#define GR_SETXATTR_ACL_MSG "%s setting extended attribute of %.950s by "
79852 +#define GR_REMOVEXATTR_ACL_MSG "%s removing extended attribute of %.950s by "
79853 +#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
79854 +#define GR_INITF_ACL_MSG "init_variables() failed %s by "
79855 +#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
79856 +#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
79857 +#define GR_SHUTS_ACL_MSG "shutdown auth success for "
79858 +#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
79859 +#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
79860 +#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
79861 +#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
79862 +#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
79863 +#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
79864 +#define GR_ENABLEF_ACL_MSG "unable to load %s for "
79865 +#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
79866 +#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
79867 +#define GR_RELOADF_ACL_MSG "failed reload of %s for "
79868 +#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
79869 +#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
79870 +#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
79871 +#define GR_SPROLEF_ACL_MSG "special role %s failure for "
79872 +#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
79873 +#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
79874 +#define GR_INVMODE_ACL_MSG "invalid mode %d by "
79875 +#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
79876 +#define GR_FAILFORK_MSG "failed fork with errno %s by "
79877 +#define GR_NICE_CHROOT_MSG "denied priority change by "
79878 +#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
79879 +#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
79880 +#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
79881 +#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
79882 +#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
79883 +#define GR_TIME_MSG "time set by "
79884 +#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
79885 +#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
79886 +#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
79887 +#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
79888 +#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
79889 +#define GR_BIND_MSG "denied bind() by "
79890 +#define GR_CONNECT_MSG "denied connect() by "
79891 +#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
79892 +#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
79893 +#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4"
79894 +#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
79895 +#define GR_CAP_ACL_MSG "use of %s denied for "
79896 +#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
79897 +#define GR_CAP_ACL_MSG2 "use of %s permitted for "
79898 +#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
79899 +#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
79900 +#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
79901 +#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
79902 +#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
79903 +#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
79904 +#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
79905 +#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
79906 +#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
79907 +#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
79908 +#define GR_TEXTREL_AUDIT_MSG "denied text relocation in %.950s, VMA:0x%08lx 0x%08lx by "
79909 +#define GR_PTGNUSTACK_MSG "denied marking stack executable as requested by PT_GNU_STACK marking in %.950s by "
79910 +#define GR_VM86_MSG "denied use of vm86 by "
79911 +#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
79912 +#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
79913 +#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
79914 +#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
79915 +#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
79916 +#define GR_BRUTE_DAEMON_MSG "bruteforce prevention initiated for the next 30 minutes or until service restarted, stalling each fork 30 seconds. Please investigate the crash report for "
79917 +#define GR_BRUTE_SUID_MSG "bruteforce prevention initiated due to crash of %.950s against uid %u, banning suid/sgid execs for %u minutes. Please investigate the crash report for "
79918 +#define GR_IPC_DENIED_MSG "denied %s of overly-permissive IPC object with creator uid %u by "
79919 +#define GR_MSRWRITE_MSG "denied write to CPU MSR by "
79920 diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
79921 new file mode 100644
79922 index 0000000..13ac2e2
79923 --- /dev/null
79924 +++ b/include/linux/grsecurity.h
79925 @@ -0,0 +1,249 @@
79926 +#ifndef GR_SECURITY_H
79927 +#define GR_SECURITY_H
79928 +#include <linux/fs.h>
79929 +#include <linux/fs_struct.h>
79930 +#include <linux/binfmts.h>
79931 +#include <linux/gracl.h>
79932 +
79933 +/* notify of brain-dead configs */
79934 +#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
79935 +#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
79936 +#endif
79937 +#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
79938 +#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
79939 +#endif
79940 +#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
79941 +#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
79942 +#endif
79943 +#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
79944 +#error "CONFIG_PAX enabled, but no PaX options are enabled."
79945 +#endif
79946 +
79947 +int gr_handle_new_usb(void);
79948 +
79949 +void gr_handle_brute_attach(int dumpable);
79950 +void gr_handle_brute_check(void);
79951 +void gr_handle_kernel_exploit(void);
79952 +
79953 +char gr_roletype_to_char(void);
79954 +
79955 +int gr_proc_is_restricted(void);
79956 +
79957 +int gr_acl_enable_at_secure(void);
79958 +
79959 +int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
79960 +int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
79961 +
79962 +void gr_del_task_from_ip_table(struct task_struct *p);
79963 +
79964 +int gr_pid_is_chrooted(struct task_struct *p);
79965 +int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
79966 +int gr_handle_chroot_nice(void);
79967 +int gr_handle_chroot_sysctl(const int op);
79968 +int gr_handle_chroot_setpriority(struct task_struct *p,
79969 + const int niceval);
79970 +int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
79971 +int gr_chroot_fhandle(void);
79972 +int gr_handle_chroot_chroot(const struct dentry *dentry,
79973 + const struct vfsmount *mnt);
79974 +void gr_handle_chroot_chdir(const struct path *path);
79975 +int gr_handle_chroot_chmod(const struct dentry *dentry,
79976 + const struct vfsmount *mnt, const int mode);
79977 +int gr_handle_chroot_mknod(const struct dentry *dentry,
79978 + const struct vfsmount *mnt, const int mode);
79979 +int gr_handle_chroot_mount(const struct dentry *dentry,
79980 + const struct vfsmount *mnt,
79981 + const char *dev_name);
79982 +int gr_handle_chroot_pivot(void);
79983 +int gr_handle_chroot_unix(const pid_t pid);
79984 +
79985 +int gr_handle_rawio(const struct inode *inode);
79986 +
79987 +void gr_handle_ioperm(void);
79988 +void gr_handle_iopl(void);
79989 +void gr_handle_msr_write(void);
79990 +
79991 +umode_t gr_acl_umask(void);
79992 +
79993 +int gr_tpe_allow(const struct file *file);
79994 +
79995 +void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
79996 +void gr_clear_chroot_entries(struct task_struct *task);
79997 +
79998 +void gr_log_forkfail(const int retval);
79999 +void gr_log_timechange(void);
80000 +void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
80001 +void gr_log_chdir(const struct dentry *dentry,
80002 + const struct vfsmount *mnt);
80003 +void gr_log_chroot_exec(const struct dentry *dentry,
80004 + const struct vfsmount *mnt);
80005 +void gr_log_remount(const char *devname, const int retval);
80006 +void gr_log_unmount(const char *devname, const int retval);
80007 +void gr_log_mount(const char *from, const char *to, const int retval);
80008 +void gr_log_textrel(struct vm_area_struct *vma);
80009 +void gr_log_ptgnustack(struct file *file);
80010 +void gr_log_rwxmmap(struct file *file);
80011 +void gr_log_rwxmprotect(struct vm_area_struct *vma);
80012 +
80013 +int gr_handle_follow_link(const struct inode *parent,
80014 + const struct inode *inode,
80015 + const struct dentry *dentry,
80016 + const struct vfsmount *mnt);
80017 +int gr_handle_fifo(const struct dentry *dentry,
80018 + const struct vfsmount *mnt,
80019 + const struct dentry *dir, const int flag,
80020 + const int acc_mode);
80021 +int gr_handle_hardlink(const struct dentry *dentry,
80022 + const struct vfsmount *mnt,
80023 + struct inode *inode,
80024 + const int mode, const struct filename *to);
80025 +
80026 +int gr_is_capable(const int cap);
80027 +int gr_is_capable_nolog(const int cap);
80028 +int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
80029 +int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
80030 +
80031 +void gr_copy_label(struct task_struct *tsk);
80032 +void gr_handle_crash(struct task_struct *task, const int sig);
80033 +int gr_handle_signal(const struct task_struct *p, const int sig);
80034 +int gr_check_crash_uid(const kuid_t uid);
80035 +int gr_check_protected_task(const struct task_struct *task);
80036 +int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
80037 +int gr_acl_handle_mmap(const struct file *file,
80038 + const unsigned long prot);
80039 +int gr_acl_handle_mprotect(const struct file *file,
80040 + const unsigned long prot);
80041 +int gr_check_hidden_task(const struct task_struct *tsk);
80042 +__u32 gr_acl_handle_truncate(const struct dentry *dentry,
80043 + const struct vfsmount *mnt);
80044 +__u32 gr_acl_handle_utime(const struct dentry *dentry,
80045 + const struct vfsmount *mnt);
80046 +__u32 gr_acl_handle_access(const struct dentry *dentry,
80047 + const struct vfsmount *mnt, const int fmode);
80048 +__u32 gr_acl_handle_chmod(const struct dentry *dentry,
80049 + const struct vfsmount *mnt, umode_t *mode);
80050 +__u32 gr_acl_handle_chown(const struct dentry *dentry,
80051 + const struct vfsmount *mnt);
80052 +__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
80053 + const struct vfsmount *mnt);
80054 +__u32 gr_acl_handle_removexattr(const struct dentry *dentry,
80055 + const struct vfsmount *mnt);
80056 +int gr_handle_ptrace(struct task_struct *task, const long request);
80057 +int gr_handle_proc_ptrace(struct task_struct *task);
80058 +__u32 gr_acl_handle_execve(const struct dentry *dentry,
80059 + const struct vfsmount *mnt);
80060 +int gr_check_crash_exec(const struct file *filp);
80061 +int gr_acl_is_enabled(void);
80062 +void gr_set_role_label(struct task_struct *task, const kuid_t uid,
80063 + const kgid_t gid);
80064 +int gr_set_proc_label(const struct dentry *dentry,
80065 + const struct vfsmount *mnt,
80066 + const int unsafe_flags);
80067 +__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
80068 + const struct vfsmount *mnt);
80069 +__u32 gr_acl_handle_open(const struct dentry *dentry,
80070 + const struct vfsmount *mnt, int acc_mode);
80071 +__u32 gr_acl_handle_creat(const struct dentry *dentry,
80072 + const struct dentry *p_dentry,
80073 + const struct vfsmount *p_mnt,
80074 + int open_flags, int acc_mode, const int imode);
80075 +void gr_handle_create(const struct dentry *dentry,
80076 + const struct vfsmount *mnt);
80077 +void gr_handle_proc_create(const struct dentry *dentry,
80078 + const struct inode *inode);
80079 +__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
80080 + const struct dentry *parent_dentry,
80081 + const struct vfsmount *parent_mnt,
80082 + const int mode);
80083 +__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
80084 + const struct dentry *parent_dentry,
80085 + const struct vfsmount *parent_mnt);
80086 +__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
80087 + const struct vfsmount *mnt);
80088 +void gr_handle_delete(const ino_t ino, const dev_t dev);
80089 +__u32 gr_acl_handle_unlink(const struct dentry *dentry,
80090 + const struct vfsmount *mnt);
80091 +__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
80092 + const struct dentry *parent_dentry,
80093 + const struct vfsmount *parent_mnt,
80094 + const struct filename *from);
80095 +__u32 gr_acl_handle_link(const struct dentry *new_dentry,
80096 + const struct dentry *parent_dentry,
80097 + const struct vfsmount *parent_mnt,
80098 + const struct dentry *old_dentry,
80099 + const struct vfsmount *old_mnt, const struct filename *to);
80100 +int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
80101 +int gr_acl_handle_rename(struct dentry *new_dentry,
80102 + struct dentry *parent_dentry,
80103 + const struct vfsmount *parent_mnt,
80104 + struct dentry *old_dentry,
80105 + struct inode *old_parent_inode,
80106 + struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags);
80107 +void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
80108 + struct dentry *old_dentry,
80109 + struct dentry *new_dentry,
80110 + struct vfsmount *mnt, const __u8 replace, unsigned int flags);
80111 +__u32 gr_check_link(const struct dentry *new_dentry,
80112 + const struct dentry *parent_dentry,
80113 + const struct vfsmount *parent_mnt,
80114 + const struct dentry *old_dentry,
80115 + const struct vfsmount *old_mnt);
80116 +int gr_acl_handle_filldir(const struct file *file, const char *name,
80117 + const unsigned int namelen, const ino_t ino);
80118 +
80119 +__u32 gr_acl_handle_unix(const struct dentry *dentry,
80120 + const struct vfsmount *mnt);
80121 +void gr_acl_handle_exit(void);
80122 +void gr_acl_handle_psacct(struct task_struct *task, const long code);
80123 +int gr_acl_handle_procpidmem(const struct task_struct *task);
80124 +int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
80125 +int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
80126 +void gr_audit_ptrace(struct task_struct *task);
80127 +dev_t gr_get_dev_from_dentry(struct dentry *dentry);
80128 +void gr_put_exec_file(struct task_struct *task);
80129 +
80130 +int gr_ptrace_readexec(struct file *file, int unsafe_flags);
80131 +
80132 +#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
80133 +extern void gr_learn_resource(const struct task_struct *task, const int res,
80134 + const unsigned long wanted, const int gt);
80135 +#else
80136 +static inline void gr_learn_resource(const struct task_struct *task, const int res,
80137 + const unsigned long wanted, const int gt)
80138 +{
80139 +}
80140 +#endif
80141 +
80142 +#ifdef CONFIG_GRKERNSEC_RESLOG
80143 +extern void gr_log_resource(const struct task_struct *task, const int res,
80144 + const unsigned long wanted, const int gt);
80145 +#else
80146 +static inline void gr_log_resource(const struct task_struct *task, const int res,
80147 + const unsigned long wanted, const int gt)
80148 +{
80149 +}
80150 +#endif
80151 +
80152 +#ifdef CONFIG_GRKERNSEC
80153 +void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
80154 +void gr_handle_vm86(void);
80155 +void gr_handle_mem_readwrite(u64 from, u64 to);
80156 +
80157 +void gr_log_badprocpid(const char *entry);
80158 +
80159 +extern int grsec_enable_dmesg;
80160 +extern int grsec_disable_privio;
80161 +
80162 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
80163 +extern kgid_t grsec_proc_gid;
80164 +#endif
80165 +
80166 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
80167 +extern int grsec_enable_chroot_findtask;
80168 +#endif
80169 +#ifdef CONFIG_GRKERNSEC_SETXID
80170 +extern int grsec_enable_setxid;
80171 +#endif
80172 +#endif
80173 +
80174 +#endif
80175 diff --git a/include/linux/grsock.h b/include/linux/grsock.h
80176 new file mode 100644
80177 index 0000000..e7ffaaf
80178 --- /dev/null
80179 +++ b/include/linux/grsock.h
80180 @@ -0,0 +1,19 @@
80181 +#ifndef __GRSOCK_H
80182 +#define __GRSOCK_H
80183 +
80184 +extern void gr_attach_curr_ip(const struct sock *sk);
80185 +extern int gr_handle_sock_all(const int family, const int type,
80186 + const int protocol);
80187 +extern int gr_handle_sock_server(const struct sockaddr *sck);
80188 +extern int gr_handle_sock_server_other(const struct sock *sck);
80189 +extern int gr_handle_sock_client(const struct sockaddr *sck);
80190 +extern int gr_search_connect(struct socket * sock,
80191 + struct sockaddr_in * addr);
80192 +extern int gr_search_bind(struct socket * sock,
80193 + struct sockaddr_in * addr);
80194 +extern int gr_search_listen(struct socket * sock);
80195 +extern int gr_search_accept(struct socket * sock);
80196 +extern int gr_search_socket(const int domain, const int type,
80197 + const int protocol);
80198 +
80199 +#endif
80200 diff --git a/include/linux/hash.h b/include/linux/hash.h
80201 index bd1754c..8240892 100644
80202 --- a/include/linux/hash.h
80203 +++ b/include/linux/hash.h
80204 @@ -83,7 +83,7 @@ static inline u32 hash32_ptr(const void *ptr)
80205 struct fast_hash_ops {
80206 u32 (*hash)(const void *data, u32 len, u32 seed);
80207 u32 (*hash2)(const u32 *data, u32 len, u32 seed);
80208 -};
80209 +} __no_const;
80210
80211 /**
80212 * arch_fast_hash - Caclulates a hash over a given buffer that can have
80213 diff --git a/include/linux/highmem.h b/include/linux/highmem.h
80214 index 7fb31da..08b5114 100644
80215 --- a/include/linux/highmem.h
80216 +++ b/include/linux/highmem.h
80217 @@ -189,6 +189,18 @@ static inline void clear_highpage(struct page *page)
80218 kunmap_atomic(kaddr);
80219 }
80220
80221 +static inline void sanitize_highpage(struct page *page)
80222 +{
80223 + void *kaddr;
80224 + unsigned long flags;
80225 +
80226 + local_irq_save(flags);
80227 + kaddr = kmap_atomic(page);
80228 + clear_page(kaddr);
80229 + kunmap_atomic(kaddr);
80230 + local_irq_restore(flags);
80231 +}
80232 +
80233 static inline void zero_user_segments(struct page *page,
80234 unsigned start1, unsigned end1,
80235 unsigned start2, unsigned end2)
80236 diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
80237 index 1c7b89a..7dda400 100644
80238 --- a/include/linux/hwmon-sysfs.h
80239 +++ b/include/linux/hwmon-sysfs.h
80240 @@ -25,7 +25,8 @@
80241 struct sensor_device_attribute{
80242 struct device_attribute dev_attr;
80243 int index;
80244 -};
80245 +} __do_const;
80246 +typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
80247 #define to_sensor_dev_attr(_dev_attr) \
80248 container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
80249
80250 @@ -41,7 +42,8 @@ struct sensor_device_attribute_2 {
80251 struct device_attribute dev_attr;
80252 u8 index;
80253 u8 nr;
80254 -};
80255 +} __do_const;
80256 +typedef struct sensor_device_attribute_2 __no_const sensor_device_attribute_2_no_const;
80257 #define to_sensor_dev_attr_2(_dev_attr) \
80258 container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
80259
80260 diff --git a/include/linux/i2c.h b/include/linux/i2c.h
80261 index b556e0a..c10a515 100644
80262 --- a/include/linux/i2c.h
80263 +++ b/include/linux/i2c.h
80264 @@ -378,6 +378,7 @@ struct i2c_algorithm {
80265 /* To determine what the adapter supports */
80266 u32 (*functionality) (struct i2c_adapter *);
80267 };
80268 +typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
80269
80270 /**
80271 * struct i2c_bus_recovery_info - I2C bus recovery information
80272 diff --git a/include/linux/i2o.h b/include/linux/i2o.h
80273 index d23c3c2..eb63c81 100644
80274 --- a/include/linux/i2o.h
80275 +++ b/include/linux/i2o.h
80276 @@ -565,7 +565,7 @@ struct i2o_controller {
80277 struct i2o_device *exec; /* Executive */
80278 #if BITS_PER_LONG == 64
80279 spinlock_t context_list_lock; /* lock for context_list */
80280 - atomic_t context_list_counter; /* needed for unique contexts */
80281 + atomic_unchecked_t context_list_counter; /* needed for unique contexts */
80282 struct list_head context_list; /* list of context id's
80283 and pointers */
80284 #endif
80285 diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
80286 index aff7ad8..3942bbd 100644
80287 --- a/include/linux/if_pppox.h
80288 +++ b/include/linux/if_pppox.h
80289 @@ -76,7 +76,7 @@ struct pppox_proto {
80290 int (*ioctl)(struct socket *sock, unsigned int cmd,
80291 unsigned long arg);
80292 struct module *owner;
80293 -};
80294 +} __do_const;
80295
80296 extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
80297 extern void unregister_pppox_proto(int proto_num);
80298 diff --git a/include/linux/init.h b/include/linux/init.h
80299 index a3ba270..a1b6604 100644
80300 --- a/include/linux/init.h
80301 +++ b/include/linux/init.h
80302 @@ -37,9 +37,17 @@
80303 * section.
80304 */
80305
80306 +#define add_init_latent_entropy __latent_entropy
80307 +
80308 +#ifdef CONFIG_MEMORY_HOTPLUG
80309 +#define add_meminit_latent_entropy
80310 +#else
80311 +#define add_meminit_latent_entropy __latent_entropy
80312 +#endif
80313 +
80314 /* These are for everybody (although not all archs will actually
80315 discard it in modules) */
80316 -#define __init __section(.init.text) __cold notrace
80317 +#define __init __section(.init.text) __cold notrace add_init_latent_entropy
80318 #define __initdata __section(.init.data)
80319 #define __initconst __constsection(.init.rodata)
80320 #define __exitdata __section(.exit.data)
80321 @@ -100,7 +108,7 @@
80322 #define __cpuexitconst
80323
80324 /* Used for MEMORY_HOTPLUG */
80325 -#define __meminit __section(.meminit.text) __cold notrace
80326 +#define __meminit __section(.meminit.text) __cold notrace add_meminit_latent_entropy
80327 #define __meminitdata __section(.meminit.data)
80328 #define __meminitconst __constsection(.meminit.rodata)
80329 #define __memexit __section(.memexit.text) __exitused __cold notrace
80330 diff --git a/include/linux/init_task.h b/include/linux/init_task.h
80331 index 6df7f9f..d0bf699 100644
80332 --- a/include/linux/init_task.h
80333 +++ b/include/linux/init_task.h
80334 @@ -156,6 +156,12 @@ extern struct task_group root_task_group;
80335
80336 #define INIT_TASK_COMM "swapper"
80337
80338 +#ifdef CONFIG_X86
80339 +#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
80340 +#else
80341 +#define INIT_TASK_THREAD_INFO
80342 +#endif
80343 +
80344 #ifdef CONFIG_RT_MUTEXES
80345 # define INIT_RT_MUTEXES(tsk) \
80346 .pi_waiters = RB_ROOT, \
80347 @@ -203,6 +209,7 @@ extern struct task_group root_task_group;
80348 RCU_POINTER_INITIALIZER(cred, &init_cred), \
80349 .comm = INIT_TASK_COMM, \
80350 .thread = INIT_THREAD, \
80351 + INIT_TASK_THREAD_INFO \
80352 .fs = &init_fs, \
80353 .files = &init_files, \
80354 .signal = &init_signals, \
80355 diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
80356 index 051c850..431f83a 100644
80357 --- a/include/linux/interrupt.h
80358 +++ b/include/linux/interrupt.h
80359 @@ -412,8 +412,8 @@ extern const char * const softirq_to_name[NR_SOFTIRQS];
80360
80361 struct softirq_action
80362 {
80363 - void (*action)(struct softirq_action *);
80364 -};
80365 + void (*action)(void);
80366 +} __no_const;
80367
80368 asmlinkage void do_softirq(void);
80369 asmlinkage void __do_softirq(void);
80370 @@ -427,7 +427,7 @@ static inline void do_softirq_own_stack(void)
80371 }
80372 #endif
80373
80374 -extern void open_softirq(int nr, void (*action)(struct softirq_action *));
80375 +extern void open_softirq(int nr, void (*action)(void));
80376 extern void softirq_init(void);
80377 extern void __raise_softirq_irqoff(unsigned int nr);
80378
80379 diff --git a/include/linux/iommu.h b/include/linux/iommu.h
80380 index b96a5b2..2732d1c 100644
80381 --- a/include/linux/iommu.h
80382 +++ b/include/linux/iommu.h
80383 @@ -131,7 +131,7 @@ struct iommu_ops {
80384 u32 (*domain_get_windows)(struct iommu_domain *domain);
80385
80386 unsigned long pgsize_bitmap;
80387 -};
80388 +} __do_const;
80389
80390 #define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
80391 #define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */
80392 diff --git a/include/linux/ioport.h b/include/linux/ioport.h
80393 index 5e3a906..3131d0f 100644
80394 --- a/include/linux/ioport.h
80395 +++ b/include/linux/ioport.h
80396 @@ -161,7 +161,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
80397 int adjust_resource(struct resource *res, resource_size_t start,
80398 resource_size_t size);
80399 resource_size_t resource_alignment(struct resource *res);
80400 -static inline resource_size_t resource_size(const struct resource *res)
80401 +static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
80402 {
80403 return res->end - res->start + 1;
80404 }
80405 diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
80406 index 35e7eca..6afb7ad 100644
80407 --- a/include/linux/ipc_namespace.h
80408 +++ b/include/linux/ipc_namespace.h
80409 @@ -69,7 +69,7 @@ struct ipc_namespace {
80410 struct user_namespace *user_ns;
80411
80412 unsigned int proc_inum;
80413 -};
80414 +} __randomize_layout;
80415
80416 extern struct ipc_namespace init_ipc_ns;
80417 extern atomic_t nr_ipc_ns;
80418 diff --git a/include/linux/irq.h b/include/linux/irq.h
80419 index 5c57efb..965a62b 100644
80420 --- a/include/linux/irq.h
80421 +++ b/include/linux/irq.h
80422 @@ -344,7 +344,8 @@ struct irq_chip {
80423 void (*irq_release_resources)(struct irq_data *data);
80424
80425 unsigned long flags;
80426 -};
80427 +} __do_const;
80428 +typedef struct irq_chip __no_const irq_chip_no_const;
80429
80430 /*
80431 * irq_chip specific flags
80432 diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
80433 index 7ed92d0..589abf5 100644
80434 --- a/include/linux/irqchip/arm-gic.h
80435 +++ b/include/linux/irqchip/arm-gic.h
80436 @@ -73,9 +73,11 @@
80437
80438 #ifndef __ASSEMBLY__
80439
80440 +#include <linux/irq.h>
80441 +
80442 struct device_node;
80443
80444 -extern struct irq_chip gic_arch_extn;
80445 +extern irq_chip_no_const gic_arch_extn;
80446
80447 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
80448 u32 offset, struct device_node *);
80449 diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
80450 index 1f44466..b481806 100644
80451 --- a/include/linux/jiffies.h
80452 +++ b/include/linux/jiffies.h
80453 @@ -292,20 +292,20 @@ extern unsigned long preset_lpj;
80454 /*
80455 * Convert various time units to each other:
80456 */
80457 -extern unsigned int jiffies_to_msecs(const unsigned long j);
80458 -extern unsigned int jiffies_to_usecs(const unsigned long j);
80459 +extern unsigned int jiffies_to_msecs(const unsigned long j) __intentional_overflow(-1);
80460 +extern unsigned int jiffies_to_usecs(const unsigned long j) __intentional_overflow(-1);
80461
80462 -static inline u64 jiffies_to_nsecs(const unsigned long j)
80463 +static inline u64 __intentional_overflow(-1) jiffies_to_nsecs(const unsigned long j)
80464 {
80465 return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
80466 }
80467
80468 -extern unsigned long msecs_to_jiffies(const unsigned int m);
80469 -extern unsigned long usecs_to_jiffies(const unsigned int u);
80470 +extern unsigned long msecs_to_jiffies(const unsigned int m) __intentional_overflow(-1);
80471 +extern unsigned long usecs_to_jiffies(const unsigned int u) __intentional_overflow(-1);
80472 extern unsigned long timespec_to_jiffies(const struct timespec *value);
80473 extern void jiffies_to_timespec(const unsigned long jiffies,
80474 - struct timespec *value);
80475 -extern unsigned long timeval_to_jiffies(const struct timeval *value);
80476 + struct timespec *value) __intentional_overflow(-1);
80477 +extern unsigned long timeval_to_jiffies(const struct timeval *value) __intentional_overflow(-1);
80478 extern void jiffies_to_timeval(const unsigned long jiffies,
80479 struct timeval *value);
80480
80481 diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
80482 index 6883e19..e854fcb 100644
80483 --- a/include/linux/kallsyms.h
80484 +++ b/include/linux/kallsyms.h
80485 @@ -15,7 +15,8 @@
80486
80487 struct module;
80488
80489 -#ifdef CONFIG_KALLSYMS
80490 +#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
80491 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
80492 /* Lookup the address for a symbol. Returns 0 if not found. */
80493 unsigned long kallsyms_lookup_name(const char *name);
80494
80495 @@ -106,6 +107,21 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
80496 /* Stupid that this does nothing, but I didn't create this mess. */
80497 #define __print_symbol(fmt, addr)
80498 #endif /*CONFIG_KALLSYMS*/
80499 +#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or
80500 + arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
80501 +extern unsigned long kallsyms_lookup_name(const char *name);
80502 +extern void __print_symbol(const char *fmt, unsigned long address);
80503 +extern int sprint_backtrace(char *buffer, unsigned long address);
80504 +extern int sprint_symbol(char *buffer, unsigned long address);
80505 +extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
80506 +const char *kallsyms_lookup(unsigned long addr,
80507 + unsigned long *symbolsize,
80508 + unsigned long *offset,
80509 + char **modname, char *namebuf);
80510 +extern int kallsyms_lookup_size_offset(unsigned long addr,
80511 + unsigned long *symbolsize,
80512 + unsigned long *offset);
80513 +#endif
80514
80515 /* This macro allows us to keep printk typechecking */
80516 static __printf(1, 2)
80517 diff --git a/include/linux/key-type.h b/include/linux/key-type.h
80518 index a74c3a8..28d3f21 100644
80519 --- a/include/linux/key-type.h
80520 +++ b/include/linux/key-type.h
80521 @@ -131,7 +131,7 @@ struct key_type {
80522 /* internal fields */
80523 struct list_head link; /* link in types list */
80524 struct lock_class_key lock_class; /* key->sem lock class */
80525 -};
80526 +} __do_const;
80527
80528 extern struct key_type key_type_keyring;
80529
80530 diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
80531 index 6b06d37..c134867 100644
80532 --- a/include/linux/kgdb.h
80533 +++ b/include/linux/kgdb.h
80534 @@ -52,7 +52,7 @@ extern int kgdb_connected;
80535 extern int kgdb_io_module_registered;
80536
80537 extern atomic_t kgdb_setting_breakpoint;
80538 -extern atomic_t kgdb_cpu_doing_single_step;
80539 +extern atomic_unchecked_t kgdb_cpu_doing_single_step;
80540
80541 extern struct task_struct *kgdb_usethread;
80542 extern struct task_struct *kgdb_contthread;
80543 @@ -254,7 +254,7 @@ struct kgdb_arch {
80544 void (*correct_hw_break)(void);
80545
80546 void (*enable_nmi)(bool on);
80547 -};
80548 +} __do_const;
80549
80550 /**
80551 * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
80552 @@ -279,7 +279,7 @@ struct kgdb_io {
80553 void (*pre_exception) (void);
80554 void (*post_exception) (void);
80555 int is_console;
80556 -};
80557 +} __do_const;
80558
80559 extern struct kgdb_arch arch_kgdb_ops;
80560
80561 diff --git a/include/linux/kmod.h b/include/linux/kmod.h
80562 index 0555cc6..40116ce 100644
80563 --- a/include/linux/kmod.h
80564 +++ b/include/linux/kmod.h
80565 @@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
80566 * usually useless though. */
80567 extern __printf(2, 3)
80568 int __request_module(bool wait, const char *name, ...);
80569 +extern __printf(3, 4)
80570 +int ___request_module(bool wait, char *param_name, const char *name, ...);
80571 #define request_module(mod...) __request_module(true, mod)
80572 #define request_module_nowait(mod...) __request_module(false, mod)
80573 #define try_then_request_module(x, mod...) \
80574 @@ -57,6 +59,9 @@ struct subprocess_info {
80575 struct work_struct work;
80576 struct completion *complete;
80577 char *path;
80578 +#ifdef CONFIG_GRKERNSEC
80579 + char *origpath;
80580 +#endif
80581 char **argv;
80582 char **envp;
80583 int wait;
80584 diff --git a/include/linux/kobject.h b/include/linux/kobject.h
80585 index f896a33..f2eb10f 100644
80586 --- a/include/linux/kobject.h
80587 +++ b/include/linux/kobject.h
80588 @@ -116,7 +116,7 @@ struct kobj_type {
80589 struct attribute **default_attrs;
80590 const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
80591 const void *(*namespace)(struct kobject *kobj);
80592 -};
80593 +} __do_const;
80594
80595 struct kobj_uevent_env {
80596 char *argv[3];
80597 @@ -140,6 +140,7 @@ struct kobj_attribute {
80598 ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
80599 const char *buf, size_t count);
80600 };
80601 +typedef struct kobj_attribute __no_const kobj_attribute_no_const;
80602
80603 extern const struct sysfs_ops kobj_sysfs_ops;
80604
80605 @@ -167,7 +168,7 @@ struct kset {
80606 spinlock_t list_lock;
80607 struct kobject kobj;
80608 const struct kset_uevent_ops *uevent_ops;
80609 -};
80610 +} __randomize_layout;
80611
80612 extern void kset_init(struct kset *kset);
80613 extern int __must_check kset_register(struct kset *kset);
80614 diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
80615 index df32d25..fb52e27 100644
80616 --- a/include/linux/kobject_ns.h
80617 +++ b/include/linux/kobject_ns.h
80618 @@ -44,7 +44,7 @@ struct kobj_ns_type_operations {
80619 const void *(*netlink_ns)(struct sock *sk);
80620 const void *(*initial_ns)(void);
80621 void (*drop_ns)(void *);
80622 -};
80623 +} __do_const;
80624
80625 int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
80626 int kobj_ns_type_registered(enum kobj_ns_type type);
80627 diff --git a/include/linux/kref.h b/include/linux/kref.h
80628 index 484604d..0f6c5b6 100644
80629 --- a/include/linux/kref.h
80630 +++ b/include/linux/kref.h
80631 @@ -68,7 +68,7 @@ static inline void kref_get(struct kref *kref)
80632 static inline int kref_sub(struct kref *kref, unsigned int count,
80633 void (*release)(struct kref *kref))
80634 {
80635 - WARN_ON(release == NULL);
80636 + BUG_ON(release == NULL);
80637
80638 if (atomic_sub_and_test((int) count, &kref->refcount)) {
80639 release(kref);
80640 diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
80641 index 7d21cf9..bc0c81f 100644
80642 --- a/include/linux/kvm_host.h
80643 +++ b/include/linux/kvm_host.h
80644 @@ -466,7 +466,7 @@ static inline void kvm_irqfd_exit(void)
80645 {
80646 }
80647 #endif
80648 -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
80649 +int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
80650 struct module *module);
80651 void kvm_exit(void);
80652
80653 @@ -632,7 +632,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
80654 struct kvm_guest_debug *dbg);
80655 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
80656
80657 -int kvm_arch_init(void *opaque);
80658 +int kvm_arch_init(const void *opaque);
80659 void kvm_arch_exit(void);
80660
80661 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
80662 diff --git a/include/linux/libata.h b/include/linux/libata.h
80663 index 5ab4e3a..2fe237b 100644
80664 --- a/include/linux/libata.h
80665 +++ b/include/linux/libata.h
80666 @@ -975,7 +975,7 @@ struct ata_port_operations {
80667 * fields must be pointers.
80668 */
80669 const struct ata_port_operations *inherits;
80670 -};
80671 +} __do_const;
80672
80673 struct ata_port_info {
80674 unsigned long flags;
80675 diff --git a/include/linux/linkage.h b/include/linux/linkage.h
80676 index a6a42dd..6c5ebce 100644
80677 --- a/include/linux/linkage.h
80678 +++ b/include/linux/linkage.h
80679 @@ -36,6 +36,7 @@
80680 #endif
80681
80682 #define __page_aligned_data __section(.data..page_aligned) __aligned(PAGE_SIZE)
80683 +#define __page_aligned_rodata __read_only __aligned(PAGE_SIZE)
80684 #define __page_aligned_bss __section(.bss..page_aligned) __aligned(PAGE_SIZE)
80685
80686 /*
80687 diff --git a/include/linux/list.h b/include/linux/list.h
80688 index ef95941..82db65a 100644
80689 --- a/include/linux/list.h
80690 +++ b/include/linux/list.h
80691 @@ -112,6 +112,19 @@ extern void __list_del_entry(struct list_head *entry);
80692 extern void list_del(struct list_head *entry);
80693 #endif
80694
80695 +extern void __pax_list_add(struct list_head *new,
80696 + struct list_head *prev,
80697 + struct list_head *next);
80698 +static inline void pax_list_add(struct list_head *new, struct list_head *head)
80699 +{
80700 + __pax_list_add(new, head, head->next);
80701 +}
80702 +static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
80703 +{
80704 + __pax_list_add(new, head->prev, head);
80705 +}
80706 +extern void pax_list_del(struct list_head *entry);
80707 +
80708 /**
80709 * list_replace - replace old entry by new one
80710 * @old : the element to be replaced
80711 @@ -145,6 +158,8 @@ static inline void list_del_init(struct list_head *entry)
80712 INIT_LIST_HEAD(entry);
80713 }
80714
80715 +extern void pax_list_del_init(struct list_head *entry);
80716 +
80717 /**
80718 * list_move - delete from one list and add as another's head
80719 * @list: the entry to move
80720 diff --git a/include/linux/math64.h b/include/linux/math64.h
80721 index c45c089..298841c 100644
80722 --- a/include/linux/math64.h
80723 +++ b/include/linux/math64.h
80724 @@ -15,7 +15,7 @@
80725 * This is commonly provided by 32bit archs to provide an optimized 64bit
80726 * divide.
80727 */
80728 -static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
80729 +static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
80730 {
80731 *remainder = dividend % divisor;
80732 return dividend / divisor;
80733 @@ -42,7 +42,7 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
80734 /**
80735 * div64_u64 - unsigned 64bit divide with 64bit divisor
80736 */
80737 -static inline u64 div64_u64(u64 dividend, u64 divisor)
80738 +static inline u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
80739 {
80740 return dividend / divisor;
80741 }
80742 @@ -61,7 +61,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
80743 #define div64_ul(x, y) div_u64((x), (y))
80744
80745 #ifndef div_u64_rem
80746 -static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
80747 +static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
80748 {
80749 *remainder = do_div(dividend, divisor);
80750 return dividend;
80751 @@ -77,7 +77,7 @@ extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder);
80752 #endif
80753
80754 #ifndef div64_u64
80755 -extern u64 div64_u64(u64 dividend, u64 divisor);
80756 +extern u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor);
80757 #endif
80758
80759 #ifndef div64_s64
80760 @@ -94,7 +94,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
80761 * divide.
80762 */
80763 #ifndef div_u64
80764 -static inline u64 div_u64(u64 dividend, u32 divisor)
80765 +static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
80766 {
80767 u32 remainder;
80768 return div_u64_rem(dividend, divisor, &remainder);
80769 diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
80770 index f230a97..714c006 100644
80771 --- a/include/linux/mempolicy.h
80772 +++ b/include/linux/mempolicy.h
80773 @@ -91,6 +91,10 @@ static inline struct mempolicy *mpol_dup(struct mempolicy *pol)
80774 }
80775
80776 #define vma_policy(vma) ((vma)->vm_policy)
80777 +static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
80778 +{
80779 + vma->vm_policy = pol;
80780 +}
80781
80782 static inline void mpol_get(struct mempolicy *pol)
80783 {
80784 @@ -228,6 +232,9 @@ static inline void mpol_free_shared_policy(struct shared_policy *p)
80785 }
80786
80787 #define vma_policy(vma) NULL
80788 +static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
80789 +{
80790 +}
80791
80792 static inline int
80793 vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
80794 diff --git a/include/linux/mm.h b/include/linux/mm.h
80795 index d677706..673408c 100644
80796 --- a/include/linux/mm.h
80797 +++ b/include/linux/mm.h
80798 @@ -127,6 +127,11 @@ extern unsigned int kobjsize(const void *objp);
80799 #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
80800 #define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */
80801 #define VM_ARCH_1 0x01000000 /* Architecture-specific flag */
80802 +
80803 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
80804 +#define VM_PAGEEXEC 0x02000000 /* vma->vm_page_prot needs special handling */
80805 +#endif
80806 +
80807 #define VM_DONTDUMP 0x04000000 /* Do not include in the core dump */
80808
80809 #ifdef CONFIG_MEM_SOFT_DIRTY
80810 @@ -237,8 +242,8 @@ struct vm_operations_struct {
80811 /* called by access_process_vm when get_user_pages() fails, typically
80812 * for use by special VMAs that can switch between memory and hardware
80813 */
80814 - int (*access)(struct vm_area_struct *vma, unsigned long addr,
80815 - void *buf, int len, int write);
80816 + ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
80817 + void *buf, size_t len, int write);
80818 #ifdef CONFIG_NUMA
80819 /*
80820 * set_policy() op must add a reference to any non-NULL @new mempolicy
80821 @@ -268,6 +273,7 @@ struct vm_operations_struct {
80822 int (*remap_pages)(struct vm_area_struct *vma, unsigned long addr,
80823 unsigned long size, pgoff_t pgoff);
80824 };
80825 +typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
80826
80827 struct mmu_gather;
80828 struct inode;
80829 @@ -1133,8 +1139,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
80830 unsigned long *pfn);
80831 int follow_phys(struct vm_area_struct *vma, unsigned long address,
80832 unsigned int flags, unsigned long *prot, resource_size_t *phys);
80833 -int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
80834 - void *buf, int len, int write);
80835 +ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
80836 + void *buf, size_t len, int write);
80837
80838 static inline void unmap_shared_mapping_range(struct address_space *mapping,
80839 loff_t const holebegin, loff_t const holelen)
80840 @@ -1173,9 +1179,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
80841 }
80842 #endif
80843
80844 -extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
80845 -extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
80846 - void *buf, int len, int write);
80847 +extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
80848 +extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
80849 + void *buf, size_t len, int write);
80850
80851 long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
80852 unsigned long start, unsigned long nr_pages,
80853 @@ -1208,34 +1214,6 @@ int set_page_dirty_lock(struct page *page);
80854 int clear_page_dirty_for_io(struct page *page);
80855 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
80856
80857 -/* Is the vma a continuation of the stack vma above it? */
80858 -static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
80859 -{
80860 - return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
80861 -}
80862 -
80863 -static inline int stack_guard_page_start(struct vm_area_struct *vma,
80864 - unsigned long addr)
80865 -{
80866 - return (vma->vm_flags & VM_GROWSDOWN) &&
80867 - (vma->vm_start == addr) &&
80868 - !vma_growsdown(vma->vm_prev, addr);
80869 -}
80870 -
80871 -/* Is the vma a continuation of the stack vma below it? */
80872 -static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
80873 -{
80874 - return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
80875 -}
80876 -
80877 -static inline int stack_guard_page_end(struct vm_area_struct *vma,
80878 - unsigned long addr)
80879 -{
80880 - return (vma->vm_flags & VM_GROWSUP) &&
80881 - (vma->vm_end == addr) &&
80882 - !vma_growsup(vma->vm_next, addr);
80883 -}
80884 -
80885 extern pid_t
80886 vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
80887
80888 @@ -1335,6 +1313,15 @@ static inline void sync_mm_rss(struct mm_struct *mm)
80889 }
80890 #endif
80891
80892 +#ifdef CONFIG_MMU
80893 +pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
80894 +#else
80895 +static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
80896 +{
80897 + return __pgprot(0);
80898 +}
80899 +#endif
80900 +
80901 int vma_wants_writenotify(struct vm_area_struct *vma);
80902
80903 extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
80904 @@ -1353,8 +1340,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
80905 {
80906 return 0;
80907 }
80908 +
80909 +static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
80910 + unsigned long address)
80911 +{
80912 + return 0;
80913 +}
80914 #else
80915 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
80916 +int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
80917 #endif
80918
80919 #ifdef __PAGETABLE_PMD_FOLDED
80920 @@ -1363,8 +1357,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
80921 {
80922 return 0;
80923 }
80924 +
80925 +static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
80926 + unsigned long address)
80927 +{
80928 + return 0;
80929 +}
80930 #else
80931 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
80932 +int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
80933 #endif
80934
80935 int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
80936 @@ -1382,11 +1383,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
80937 NULL: pud_offset(pgd, address);
80938 }
80939
80940 +static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
80941 +{
80942 + return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
80943 + NULL: pud_offset(pgd, address);
80944 +}
80945 +
80946 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
80947 {
80948 return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
80949 NULL: pmd_offset(pud, address);
80950 }
80951 +
80952 +static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
80953 +{
80954 + return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
80955 + NULL: pmd_offset(pud, address);
80956 +}
80957 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
80958
80959 #if USE_SPLIT_PTE_PTLOCKS
80960 @@ -1783,7 +1796,7 @@ extern int install_special_mapping(struct mm_struct *mm,
80961 unsigned long addr, unsigned long len,
80962 unsigned long flags, struct page **pages);
80963
80964 -extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
80965 +extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) __intentional_overflow(-1);
80966
80967 extern unsigned long mmap_region(struct file *file, unsigned long addr,
80968 unsigned long len, vm_flags_t vm_flags, unsigned long pgoff);
80969 @@ -1791,6 +1804,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
80970 unsigned long len, unsigned long prot, unsigned long flags,
80971 unsigned long pgoff, unsigned long *populate);
80972 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
80973 +extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
80974
80975 #ifdef CONFIG_MMU
80976 extern int __mm_populate(unsigned long addr, unsigned long len,
80977 @@ -1819,10 +1833,11 @@ struct vm_unmapped_area_info {
80978 unsigned long high_limit;
80979 unsigned long align_mask;
80980 unsigned long align_offset;
80981 + unsigned long threadstack_offset;
80982 };
80983
80984 -extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
80985 -extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
80986 +extern unsigned long unmapped_area(const struct vm_unmapped_area_info *info);
80987 +extern unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info);
80988
80989 /*
80990 * Search for an unmapped address range.
80991 @@ -1834,7 +1849,7 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
80992 * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
80993 */
80994 static inline unsigned long
80995 -vm_unmapped_area(struct vm_unmapped_area_info *info)
80996 +vm_unmapped_area(const struct vm_unmapped_area_info *info)
80997 {
80998 if (!(info->flags & VM_UNMAPPED_AREA_TOPDOWN))
80999 return unmapped_area(info);
81000 @@ -1896,6 +1911,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
81001 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
81002 struct vm_area_struct **pprev);
81003
81004 +extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
81005 +extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
81006 +extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
81007 +
81008 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
81009 NULL if none. Assume start_addr < end_addr. */
81010 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
81011 @@ -1924,15 +1943,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
81012 return vma;
81013 }
81014
81015 -#ifdef CONFIG_MMU
81016 -pgprot_t vm_get_page_prot(unsigned long vm_flags);
81017 -#else
81018 -static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
81019 -{
81020 - return __pgprot(0);
81021 -}
81022 -#endif
81023 -
81024 #ifdef CONFIG_NUMA_BALANCING
81025 unsigned long change_prot_numa(struct vm_area_struct *vma,
81026 unsigned long start, unsigned long end);
81027 @@ -1984,6 +1994,11 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
81028 static inline void vm_stat_account(struct mm_struct *mm,
81029 unsigned long flags, struct file *file, long pages)
81030 {
81031 +
81032 +#ifdef CONFIG_PAX_RANDMMAP
81033 + if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
81034 +#endif
81035 +
81036 mm->total_vm += pages;
81037 }
81038 #endif /* CONFIG_PROC_FS */
81039 @@ -2065,7 +2080,7 @@ extern int unpoison_memory(unsigned long pfn);
81040 extern int sysctl_memory_failure_early_kill;
81041 extern int sysctl_memory_failure_recovery;
81042 extern void shake_page(struct page *p, int access);
81043 -extern atomic_long_t num_poisoned_pages;
81044 +extern atomic_long_unchecked_t num_poisoned_pages;
81045 extern int soft_offline_page(struct page *page, int flags);
81046
81047 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
81048 @@ -2100,5 +2115,11 @@ void __init setup_nr_node_ids(void);
81049 static inline void setup_nr_node_ids(void) {}
81050 #endif
81051
81052 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
81053 +extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
81054 +#else
81055 +static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
81056 +#endif
81057 +
81058 #endif /* __KERNEL__ */
81059 #endif /* _LINUX_MM_H */
81060 diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
81061 index 8967e20..61f7900 100644
81062 --- a/include/linux/mm_types.h
81063 +++ b/include/linux/mm_types.h
81064 @@ -308,7 +308,9 @@ struct vm_area_struct {
81065 #ifdef CONFIG_NUMA
81066 struct mempolicy *vm_policy; /* NUMA policy for the VMA */
81067 #endif
81068 -};
81069 +
81070 + struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
81071 +} __randomize_layout;
81072
81073 struct core_thread {
81074 struct task_struct *task;
81075 @@ -454,7 +456,25 @@ struct mm_struct {
81076 bool tlb_flush_pending;
81077 #endif
81078 struct uprobes_state uprobes_state;
81079 -};
81080 +
81081 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
81082 + unsigned long pax_flags;
81083 +#endif
81084 +
81085 +#ifdef CONFIG_PAX_DLRESOLVE
81086 + unsigned long call_dl_resolve;
81087 +#endif
81088 +
81089 +#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
81090 + unsigned long call_syscall;
81091 +#endif
81092 +
81093 +#ifdef CONFIG_PAX_ASLR
81094 + unsigned long delta_mmap; /* randomized offset */
81095 + unsigned long delta_stack; /* randomized offset */
81096 +#endif
81097 +
81098 +} __randomize_layout;
81099
81100 static inline void mm_init_cpumask(struct mm_struct *mm)
81101 {
81102 diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
81103 index c5d5278..f0b68c8 100644
81104 --- a/include/linux/mmiotrace.h
81105 +++ b/include/linux/mmiotrace.h
81106 @@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
81107 /* Called from ioremap.c */
81108 extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
81109 void __iomem *addr);
81110 -extern void mmiotrace_iounmap(volatile void __iomem *addr);
81111 +extern void mmiotrace_iounmap(const volatile void __iomem *addr);
81112
81113 /* For anyone to insert markers. Remember trailing newline. */
81114 extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
81115 @@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
81116 {
81117 }
81118
81119 -static inline void mmiotrace_iounmap(volatile void __iomem *addr)
81120 +static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
81121 {
81122 }
81123
81124 diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
81125 index 835aa3d..676b387 100644
81126 --- a/include/linux/mmzone.h
81127 +++ b/include/linux/mmzone.h
81128 @@ -406,7 +406,7 @@ struct zone {
81129 unsigned long flags; /* zone flags, see below */
81130
81131 /* Zone statistics */
81132 - atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
81133 + atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
81134
81135 /*
81136 * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on
81137 diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
81138 index 44eeef0..a92d3f9 100644
81139 --- a/include/linux/mod_devicetable.h
81140 +++ b/include/linux/mod_devicetable.h
81141 @@ -139,7 +139,7 @@ struct usb_device_id {
81142 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
81143 #define USB_DEVICE_ID_MATCH_INT_NUMBER 0x0400
81144
81145 -#define HID_ANY_ID (~0)
81146 +#define HID_ANY_ID (~0U)
81147 #define HID_BUS_ANY 0xffff
81148 #define HID_GROUP_ANY 0x0000
81149
81150 @@ -475,7 +475,7 @@ struct dmi_system_id {
81151 const char *ident;
81152 struct dmi_strmatch matches[4];
81153 void *driver_data;
81154 -};
81155 +} __do_const;
81156 /*
81157 * struct dmi_device_id appears during expansion of
81158 * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
81159 diff --git a/include/linux/module.h b/include/linux/module.h
81160 index f520a76..5f898ef 100644
81161 --- a/include/linux/module.h
81162 +++ b/include/linux/module.h
81163 @@ -17,9 +17,11 @@
81164 #include <linux/moduleparam.h>
81165 #include <linux/jump_label.h>
81166 #include <linux/export.h>
81167 +#include <linux/fs.h>
81168
81169 #include <linux/percpu.h>
81170 #include <asm/module.h>
81171 +#include <asm/pgtable.h>
81172
81173 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
81174 #define MODULE_SIG_STRING "~Module signature appended~\n"
81175 @@ -42,7 +44,7 @@ struct module_kobject {
81176 struct kobject *drivers_dir;
81177 struct module_param_attrs *mp;
81178 struct completion *kobj_completion;
81179 -};
81180 +} __randomize_layout;
81181
81182 struct module_attribute {
81183 struct attribute attr;
81184 @@ -54,12 +56,13 @@ struct module_attribute {
81185 int (*test)(struct module *);
81186 void (*free)(struct module *);
81187 };
81188 +typedef struct module_attribute __no_const module_attribute_no_const;
81189
81190 struct module_version_attribute {
81191 struct module_attribute mattr;
81192 const char *module_name;
81193 const char *version;
81194 -} __attribute__ ((__aligned__(sizeof(void *))));
81195 +} __do_const __attribute__ ((__aligned__(sizeof(void *))));
81196
81197 extern ssize_t __modver_version_show(struct module_attribute *,
81198 struct module_kobject *, char *);
81199 @@ -235,7 +238,7 @@ struct module {
81200
81201 /* Sysfs stuff. */
81202 struct module_kobject mkobj;
81203 - struct module_attribute *modinfo_attrs;
81204 + module_attribute_no_const *modinfo_attrs;
81205 const char *version;
81206 const char *srcversion;
81207 struct kobject *holders_dir;
81208 @@ -284,19 +287,16 @@ struct module {
81209 int (*init)(void);
81210
81211 /* If this is non-NULL, vfree after init() returns */
81212 - void *module_init;
81213 + void *module_init_rx, *module_init_rw;
81214
81215 /* Here is the actual code + data, vfree'd on unload. */
81216 - void *module_core;
81217 + void *module_core_rx, *module_core_rw;
81218
81219 /* Here are the sizes of the init and core sections */
81220 - unsigned int init_size, core_size;
81221 + unsigned int init_size_rw, core_size_rw;
81222
81223 /* The size of the executable code in each section. */
81224 - unsigned int init_text_size, core_text_size;
81225 -
81226 - /* Size of RO sections of the module (text+rodata) */
81227 - unsigned int init_ro_size, core_ro_size;
81228 + unsigned int init_size_rx, core_size_rx;
81229
81230 /* Arch-specific module values */
81231 struct mod_arch_specific arch;
81232 @@ -352,6 +352,10 @@ struct module {
81233 #ifdef CONFIG_EVENT_TRACING
81234 struct ftrace_event_call **trace_events;
81235 unsigned int num_trace_events;
81236 + struct file_operations trace_id;
81237 + struct file_operations trace_enable;
81238 + struct file_operations trace_format;
81239 + struct file_operations trace_filter;
81240 #endif
81241 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
81242 unsigned int num_ftrace_callsites;
81243 @@ -375,7 +379,7 @@ struct module {
81244 ctor_fn_t *ctors;
81245 unsigned int num_ctors;
81246 #endif
81247 -};
81248 +} __randomize_layout;
81249 #ifndef MODULE_ARCH_INIT
81250 #define MODULE_ARCH_INIT {}
81251 #endif
81252 @@ -396,16 +400,46 @@ bool is_module_address(unsigned long addr);
81253 bool is_module_percpu_address(unsigned long addr);
81254 bool is_module_text_address(unsigned long addr);
81255
81256 +static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
81257 +{
81258 +
81259 +#ifdef CONFIG_PAX_KERNEXEC
81260 + if (ktla_ktva(addr) >= (unsigned long)start &&
81261 + ktla_ktva(addr) < (unsigned long)start + size)
81262 + return 1;
81263 +#endif
81264 +
81265 + return ((void *)addr >= start && (void *)addr < start + size);
81266 +}
81267 +
81268 +static inline int within_module_core_rx(unsigned long addr, const struct module *mod)
81269 +{
81270 + return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
81271 +}
81272 +
81273 +static inline int within_module_core_rw(unsigned long addr, const struct module *mod)
81274 +{
81275 + return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
81276 +}
81277 +
81278 +static inline int within_module_init_rx(unsigned long addr, const struct module *mod)
81279 +{
81280 + return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
81281 +}
81282 +
81283 +static inline int within_module_init_rw(unsigned long addr, const struct module *mod)
81284 +{
81285 + return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
81286 +}
81287 +
81288 static inline int within_module_core(unsigned long addr, const struct module *mod)
81289 {
81290 - return (unsigned long)mod->module_core <= addr &&
81291 - addr < (unsigned long)mod->module_core + mod->core_size;
81292 + return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
81293 }
81294
81295 static inline int within_module_init(unsigned long addr, const struct module *mod)
81296 {
81297 - return (unsigned long)mod->module_init <= addr &&
81298 - addr < (unsigned long)mod->module_init + mod->init_size;
81299 + return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
81300 }
81301
81302 /* Search for module by name: must hold module_mutex. */
81303 diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
81304 index 560ca53..ef621ef 100644
81305 --- a/include/linux/moduleloader.h
81306 +++ b/include/linux/moduleloader.h
81307 @@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
81308 sections. Returns NULL on failure. */
81309 void *module_alloc(unsigned long size);
81310
81311 +#ifdef CONFIG_PAX_KERNEXEC
81312 +void *module_alloc_exec(unsigned long size);
81313 +#else
81314 +#define module_alloc_exec(x) module_alloc(x)
81315 +#endif
81316 +
81317 /* Free memory returned from module_alloc. */
81318 void module_free(struct module *mod, void *module_region);
81319
81320 +#ifdef CONFIG_PAX_KERNEXEC
81321 +void module_free_exec(struct module *mod, void *module_region);
81322 +#else
81323 +#define module_free_exec(x, y) module_free((x), (y))
81324 +#endif
81325 +
81326 /*
81327 * Apply the given relocation to the (simplified) ELF. Return -error
81328 * or 0.
81329 @@ -45,7 +57,9 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
81330 unsigned int relsec,
81331 struct module *me)
81332 {
81333 +#ifdef CONFIG_MODULES
81334 printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
81335 +#endif
81336 return -ENOEXEC;
81337 }
81338 #endif
81339 @@ -67,7 +81,9 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
81340 unsigned int relsec,
81341 struct module *me)
81342 {
81343 +#ifdef CONFIG_MODULES
81344 printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
81345 +#endif
81346 return -ENOEXEC;
81347 }
81348 #endif
81349 diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
81350 index 204a677..e9b486a 100644
81351 --- a/include/linux/moduleparam.h
81352 +++ b/include/linux/moduleparam.h
81353 @@ -293,7 +293,7 @@ static inline void __kernel_param_unlock(void)
81354 * @len is usually just sizeof(string).
81355 */
81356 #define module_param_string(name, string, len, perm) \
81357 - static const struct kparam_string __param_string_##name \
81358 + static const struct kparam_string __param_string_##name __used \
81359 = { len, string }; \
81360 __module_param_call(MODULE_PARAM_PREFIX, name, \
81361 &param_ops_string, \
81362 @@ -432,7 +432,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
81363 */
81364 #define module_param_array_named(name, array, type, nump, perm) \
81365 param_check_##type(name, &(array)[0]); \
81366 - static const struct kparam_array __param_arr_##name \
81367 + static const struct kparam_array __param_arr_##name __used \
81368 = { .max = ARRAY_SIZE(array), .num = nump, \
81369 .ops = &param_ops_##type, \
81370 .elemsize = sizeof(array[0]), .elem = array }; \
81371 diff --git a/include/linux/mount.h b/include/linux/mount.h
81372 index 839bac2..a96b37c 100644
81373 --- a/include/linux/mount.h
81374 +++ b/include/linux/mount.h
81375 @@ -59,7 +59,7 @@ struct vfsmount {
81376 struct dentry *mnt_root; /* root of the mounted tree */
81377 struct super_block *mnt_sb; /* pointer to superblock */
81378 int mnt_flags;
81379 -};
81380 +} __randomize_layout;
81381
81382 struct file; /* forward dec */
81383
81384 diff --git a/include/linux/namei.h b/include/linux/namei.h
81385 index 492de72..1bddcd4 100644
81386 --- a/include/linux/namei.h
81387 +++ b/include/linux/namei.h
81388 @@ -19,7 +19,7 @@ struct nameidata {
81389 unsigned seq, m_seq;
81390 int last_type;
81391 unsigned depth;
81392 - char *saved_names[MAX_NESTED_LINKS + 1];
81393 + const char *saved_names[MAX_NESTED_LINKS + 1];
81394 };
81395
81396 /*
81397 @@ -83,12 +83,12 @@ extern void unlock_rename(struct dentry *, struct dentry *);
81398
81399 extern void nd_jump_link(struct nameidata *nd, struct path *path);
81400
81401 -static inline void nd_set_link(struct nameidata *nd, char *path)
81402 +static inline void nd_set_link(struct nameidata *nd, const char *path)
81403 {
81404 nd->saved_names[nd->depth] = path;
81405 }
81406
81407 -static inline char *nd_get_link(struct nameidata *nd)
81408 +static inline const char *nd_get_link(const struct nameidata *nd)
81409 {
81410 return nd->saved_names[nd->depth];
81411 }
81412 diff --git a/include/linux/net.h b/include/linux/net.h
81413 index 17d8339..81656c0 100644
81414 --- a/include/linux/net.h
81415 +++ b/include/linux/net.h
81416 @@ -192,7 +192,7 @@ struct net_proto_family {
81417 int (*create)(struct net *net, struct socket *sock,
81418 int protocol, int kern);
81419 struct module *owner;
81420 -};
81421 +} __do_const;
81422
81423 struct iovec;
81424 struct kvec;
81425 diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
81426 index b42d07b..7f45ae2 100644
81427 --- a/include/linux/netdevice.h
81428 +++ b/include/linux/netdevice.h
81429 @@ -1146,6 +1146,7 @@ struct net_device_ops {
81430 void *priv);
81431 int (*ndo_get_lock_subclass)(struct net_device *dev);
81432 };
81433 +typedef struct net_device_ops __no_const net_device_ops_no_const;
81434
81435 /**
81436 * enum net_device_priv_flags - &struct net_device priv_flags
81437 @@ -1313,11 +1314,11 @@ struct net_device {
81438 struct net_device_stats stats;
81439
81440 /* dropped packets by core network, Do not use this in drivers */
81441 - atomic_long_t rx_dropped;
81442 - atomic_long_t tx_dropped;
81443 + atomic_long_unchecked_t rx_dropped;
81444 + atomic_long_unchecked_t tx_dropped;
81445
81446 /* Stats to monitor carrier on<->off transitions */
81447 - atomic_t carrier_changes;
81448 + atomic_unchecked_t carrier_changes;
81449
81450 #ifdef CONFIG_WIRELESS_EXT
81451 /* List of functions to handle Wireless Extensions (instead of ioctl).
81452 diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
81453 index 2077489..a15e561 100644
81454 --- a/include/linux/netfilter.h
81455 +++ b/include/linux/netfilter.h
81456 @@ -84,7 +84,7 @@ struct nf_sockopt_ops {
81457 #endif
81458 /* Use the module struct to lock set/get code in place */
81459 struct module *owner;
81460 -};
81461 +} __do_const;
81462
81463 /* Function to register/unregister hook points. */
81464 int nf_register_hook(struct nf_hook_ops *reg);
81465 diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
81466 index e955d47..04a5338 100644
81467 --- a/include/linux/netfilter/nfnetlink.h
81468 +++ b/include/linux/netfilter/nfnetlink.h
81469 @@ -19,7 +19,7 @@ struct nfnl_callback {
81470 const struct nlattr * const cda[]);
81471 const struct nla_policy *policy; /* netlink attribute policy */
81472 const u_int16_t attr_count; /* number of nlattr's */
81473 -};
81474 +} __do_const;
81475
81476 struct nfnetlink_subsystem {
81477 const char *name;
81478 diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
81479 new file mode 100644
81480 index 0000000..33f4af8
81481 --- /dev/null
81482 +++ b/include/linux/netfilter/xt_gradm.h
81483 @@ -0,0 +1,9 @@
81484 +#ifndef _LINUX_NETFILTER_XT_GRADM_H
81485 +#define _LINUX_NETFILTER_XT_GRADM_H 1
81486 +
81487 +struct xt_gradm_mtinfo {
81488 + __u16 flags;
81489 + __u16 invflags;
81490 +};
81491 +
81492 +#endif
81493 diff --git a/include/linux/nls.h b/include/linux/nls.h
81494 index 520681b..1d67ed2 100644
81495 --- a/include/linux/nls.h
81496 +++ b/include/linux/nls.h
81497 @@ -31,7 +31,7 @@ struct nls_table {
81498 const unsigned char *charset2upper;
81499 struct module *owner;
81500 struct nls_table *next;
81501 -};
81502 +} __do_const;
81503
81504 /* this value hold the maximum octet of charset */
81505 #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
81506 diff --git a/include/linux/notifier.h b/include/linux/notifier.h
81507 index d14a4c3..a078786 100644
81508 --- a/include/linux/notifier.h
81509 +++ b/include/linux/notifier.h
81510 @@ -54,7 +54,8 @@ struct notifier_block {
81511 notifier_fn_t notifier_call;
81512 struct notifier_block __rcu *next;
81513 int priority;
81514 -};
81515 +} __do_const;
81516 +typedef struct notifier_block __no_const notifier_block_no_const;
81517
81518 struct atomic_notifier_head {
81519 spinlock_t lock;
81520 diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
81521 index b2a0f15..4d7da32 100644
81522 --- a/include/linux/oprofile.h
81523 +++ b/include/linux/oprofile.h
81524 @@ -138,9 +138,9 @@ int oprofilefs_create_ulong(struct dentry * root,
81525 int oprofilefs_create_ro_ulong(struct dentry * root,
81526 char const * name, ulong * val);
81527
81528 -/** Create a file for read-only access to an atomic_t. */
81529 +/** Create a file for read-only access to an atomic_unchecked_t. */
81530 int oprofilefs_create_ro_atomic(struct dentry * root,
81531 - char const * name, atomic_t * val);
81532 + char const * name, atomic_unchecked_t * val);
81533
81534 /** create a directory */
81535 struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name);
81536 diff --git a/include/linux/padata.h b/include/linux/padata.h
81537 index 4386946..f50c615 100644
81538 --- a/include/linux/padata.h
81539 +++ b/include/linux/padata.h
81540 @@ -129,7 +129,7 @@ struct parallel_data {
81541 struct padata_serial_queue __percpu *squeue;
81542 atomic_t reorder_objects;
81543 atomic_t refcnt;
81544 - atomic_t seq_nr;
81545 + atomic_unchecked_t seq_nr;
81546 struct padata_cpumask cpumask;
81547 spinlock_t lock ____cacheline_aligned;
81548 unsigned int processed;
81549 diff --git a/include/linux/path.h b/include/linux/path.h
81550 index d137218..be0c176 100644
81551 --- a/include/linux/path.h
81552 +++ b/include/linux/path.h
81553 @@ -1,13 +1,15 @@
81554 #ifndef _LINUX_PATH_H
81555 #define _LINUX_PATH_H
81556
81557 +#include <linux/compiler.h>
81558 +
81559 struct dentry;
81560 struct vfsmount;
81561
81562 struct path {
81563 struct vfsmount *mnt;
81564 struct dentry *dentry;
81565 -};
81566 +} __randomize_layout;
81567
81568 extern void path_get(const struct path *);
81569 extern void path_put(const struct path *);
81570 diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
81571 index 5f2e559..7d59314 100644
81572 --- a/include/linux/pci_hotplug.h
81573 +++ b/include/linux/pci_hotplug.h
81574 @@ -71,7 +71,8 @@ struct hotplug_slot_ops {
81575 int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
81576 int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
81577 int (*reset_slot) (struct hotplug_slot *slot, int probe);
81578 -};
81579 +} __do_const;
81580 +typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
81581
81582 /**
81583 * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
81584 diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
81585 index 3ef6ea1..ed1a248 100644
81586 --- a/include/linux/perf_event.h
81587 +++ b/include/linux/perf_event.h
81588 @@ -328,8 +328,8 @@ struct perf_event {
81589
81590 enum perf_event_active_state state;
81591 unsigned int attach_state;
81592 - local64_t count;
81593 - atomic64_t child_count;
81594 + local64_t count; /* PaX: fix it one day */
81595 + atomic64_unchecked_t child_count;
81596
81597 /*
81598 * These are the total time in nanoseconds that the event
81599 @@ -380,8 +380,8 @@ struct perf_event {
81600 * These accumulate total time (in nanoseconds) that children
81601 * events have been enabled and running, respectively.
81602 */
81603 - atomic64_t child_total_time_enabled;
81604 - atomic64_t child_total_time_running;
81605 + atomic64_unchecked_t child_total_time_enabled;
81606 + atomic64_unchecked_t child_total_time_running;
81607
81608 /*
81609 * Protect attach/detach and child_list:
81610 @@ -710,7 +710,7 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
81611 entry->ip[entry->nr++] = ip;
81612 }
81613
81614 -extern int sysctl_perf_event_paranoid;
81615 +extern int sysctl_perf_event_legitimately_concerned;
81616 extern int sysctl_perf_event_mlock;
81617 extern int sysctl_perf_event_sample_rate;
81618 extern int sysctl_perf_cpu_time_max_percent;
81619 @@ -725,19 +725,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
81620 loff_t *ppos);
81621
81622
81623 +static inline bool perf_paranoid_any(void)
81624 +{
81625 + return sysctl_perf_event_legitimately_concerned > 2;
81626 +}
81627 +
81628 static inline bool perf_paranoid_tracepoint_raw(void)
81629 {
81630 - return sysctl_perf_event_paranoid > -1;
81631 + return sysctl_perf_event_legitimately_concerned > -1;
81632 }
81633
81634 static inline bool perf_paranoid_cpu(void)
81635 {
81636 - return sysctl_perf_event_paranoid > 0;
81637 + return sysctl_perf_event_legitimately_concerned > 0;
81638 }
81639
81640 static inline bool perf_paranoid_kernel(void)
81641 {
81642 - return sysctl_perf_event_paranoid > 1;
81643 + return sysctl_perf_event_legitimately_concerned > 1;
81644 }
81645
81646 extern void perf_event_init(void);
81647 @@ -867,7 +872,7 @@ struct perf_pmu_events_attr {
81648 struct device_attribute attr;
81649 u64 id;
81650 const char *event_str;
81651 -};
81652 +} __do_const;
81653
81654 #define PMU_EVENT_ATTR(_name, _var, _id, _show) \
81655 static struct perf_pmu_events_attr _var = { \
81656 diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
81657 index 7246ef3..1539ea4 100644
81658 --- a/include/linux/pid_namespace.h
81659 +++ b/include/linux/pid_namespace.h
81660 @@ -43,7 +43,7 @@ struct pid_namespace {
81661 int hide_pid;
81662 int reboot; /* group exit code if this pidns was rebooted */
81663 unsigned int proc_inum;
81664 -};
81665 +} __randomize_layout;
81666
81667 extern struct pid_namespace init_pid_ns;
81668
81669 diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
81670 index eb8b8ac..62649e1 100644
81671 --- a/include/linux/pipe_fs_i.h
81672 +++ b/include/linux/pipe_fs_i.h
81673 @@ -47,10 +47,10 @@ struct pipe_inode_info {
81674 struct mutex mutex;
81675 wait_queue_head_t wait;
81676 unsigned int nrbufs, curbuf, buffers;
81677 - unsigned int readers;
81678 - unsigned int writers;
81679 - unsigned int files;
81680 - unsigned int waiting_writers;
81681 + atomic_t readers;
81682 + atomic_t writers;
81683 + atomic_t files;
81684 + atomic_t waiting_writers;
81685 unsigned int r_counter;
81686 unsigned int w_counter;
81687 struct page *tmp_page;
81688 diff --git a/include/linux/pm.h b/include/linux/pm.h
81689 index d915d03..0531037 100644
81690 --- a/include/linux/pm.h
81691 +++ b/include/linux/pm.h
81692 @@ -600,6 +600,7 @@ extern int dev_pm_put_subsys_data(struct device *dev);
81693 struct dev_pm_domain {
81694 struct dev_pm_ops ops;
81695 };
81696 +typedef struct dev_pm_domain __no_const dev_pm_domain_no_const;
81697
81698 /*
81699 * The PM_EVENT_ messages are also used by drivers implementing the legacy
81700 diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
81701 index 7c1d252..0e7061d 100644
81702 --- a/include/linux/pm_domain.h
81703 +++ b/include/linux/pm_domain.h
81704 @@ -44,11 +44,11 @@ struct gpd_dev_ops {
81705 int (*thaw_early)(struct device *dev);
81706 int (*thaw)(struct device *dev);
81707 bool (*active_wakeup)(struct device *dev);
81708 -};
81709 +} __no_const;
81710
81711 struct gpd_cpu_data {
81712 unsigned int saved_exit_latency;
81713 - struct cpuidle_state *idle_state;
81714 + cpuidle_state_no_const *idle_state;
81715 };
81716
81717 struct generic_pm_domain {
81718 diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
81719 index 2a5897a..4f9af63 100644
81720 --- a/include/linux/pm_runtime.h
81721 +++ b/include/linux/pm_runtime.h
81722 @@ -113,7 +113,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
81723
81724 static inline void pm_runtime_mark_last_busy(struct device *dev)
81725 {
81726 - ACCESS_ONCE(dev->power.last_busy) = jiffies;
81727 + ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
81728 }
81729
81730 #else /* !CONFIG_PM_RUNTIME */
81731 diff --git a/include/linux/pnp.h b/include/linux/pnp.h
81732 index 195aafc..49a7bc2 100644
81733 --- a/include/linux/pnp.h
81734 +++ b/include/linux/pnp.h
81735 @@ -297,7 +297,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
81736 struct pnp_fixup {
81737 char id[7];
81738 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
81739 -};
81740 +} __do_const;
81741
81742 /* config parameters */
81743 #define PNP_CONFIG_NORMAL 0x0001
81744 diff --git a/include/linux/poison.h b/include/linux/poison.h
81745 index 2110a81..13a11bb 100644
81746 --- a/include/linux/poison.h
81747 +++ b/include/linux/poison.h
81748 @@ -19,8 +19,8 @@
81749 * under normal circumstances, used to verify that nobody uses
81750 * non-initialized list entries.
81751 */
81752 -#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
81753 -#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
81754 +#define LIST_POISON1 ((void *) (long)0xFFFFFF01)
81755 +#define LIST_POISON2 ((void *) (long)0xFFFFFF02)
81756
81757 /********** include/linux/timer.h **********/
81758 /*
81759 diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
81760 index d8b187c3..9a9257a 100644
81761 --- a/include/linux/power/smartreflex.h
81762 +++ b/include/linux/power/smartreflex.h
81763 @@ -238,7 +238,7 @@ struct omap_sr_class_data {
81764 int (*notify)(struct omap_sr *sr, u32 status);
81765 u8 notify_flags;
81766 u8 class_type;
81767 -};
81768 +} __do_const;
81769
81770 /**
81771 * struct omap_sr_nvalue_table - Smartreflex n-target value info
81772 diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
81773 index 4ea1d37..80f4b33 100644
81774 --- a/include/linux/ppp-comp.h
81775 +++ b/include/linux/ppp-comp.h
81776 @@ -84,7 +84,7 @@ struct compressor {
81777 struct module *owner;
81778 /* Extra skb space needed by the compressor algorithm */
81779 unsigned int comp_extra;
81780 -};
81781 +} __do_const;
81782
81783 /*
81784 * The return value from decompress routine is the length of the
81785 diff --git a/include/linux/preempt.h b/include/linux/preempt.h
81786 index de83b4e..c4b997d 100644
81787 --- a/include/linux/preempt.h
81788 +++ b/include/linux/preempt.h
81789 @@ -27,11 +27,16 @@ extern void preempt_count_sub(int val);
81790 #define preempt_count_dec_and_test() __preempt_count_dec_and_test()
81791 #endif
81792
81793 +#define raw_preempt_count_add(val) __preempt_count_add(val)
81794 +#define raw_preempt_count_sub(val) __preempt_count_sub(val)
81795 +
81796 #define __preempt_count_inc() __preempt_count_add(1)
81797 #define __preempt_count_dec() __preempt_count_sub(1)
81798
81799 #define preempt_count_inc() preempt_count_add(1)
81800 +#define raw_preempt_count_inc() raw_preempt_count_add(1)
81801 #define preempt_count_dec() preempt_count_sub(1)
81802 +#define raw_preempt_count_dec() raw_preempt_count_sub(1)
81803
81804 #ifdef CONFIG_PREEMPT_COUNT
81805
81806 @@ -41,6 +46,12 @@ do { \
81807 barrier(); \
81808 } while (0)
81809
81810 +#define raw_preempt_disable() \
81811 +do { \
81812 + raw_preempt_count_inc(); \
81813 + barrier(); \
81814 +} while (0)
81815 +
81816 #define sched_preempt_enable_no_resched() \
81817 do { \
81818 barrier(); \
81819 @@ -49,6 +60,12 @@ do { \
81820
81821 #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
81822
81823 +#define raw_preempt_enable_no_resched() \
81824 +do { \
81825 + barrier(); \
81826 + raw_preempt_count_dec(); \
81827 +} while (0)
81828 +
81829 #ifdef CONFIG_PREEMPT
81830 #define preempt_enable() \
81831 do { \
81832 @@ -113,8 +130,10 @@ do { \
81833 * region.
81834 */
81835 #define preempt_disable() barrier()
81836 +#define raw_preempt_disable() barrier()
81837 #define sched_preempt_enable_no_resched() barrier()
81838 #define preempt_enable_no_resched() barrier()
81839 +#define raw_preempt_enable_no_resched() barrier()
81840 #define preempt_enable() barrier()
81841 #define preempt_check_resched() do { } while (0)
81842
81843 @@ -128,11 +147,13 @@ do { \
81844 /*
81845 * Modules have no business playing preemption tricks.
81846 */
81847 +#ifndef CONFIG_PAX_KERNEXEC
81848 #undef sched_preempt_enable_no_resched
81849 #undef preempt_enable_no_resched
81850 #undef preempt_enable_no_resched_notrace
81851 #undef preempt_check_resched
81852 #endif
81853 +#endif
81854
81855 #define preempt_set_need_resched() \
81856 do { \
81857 diff --git a/include/linux/printk.h b/include/linux/printk.h
81858 index 8752f75..2b80c0f 100644
81859 --- a/include/linux/printk.h
81860 +++ b/include/linux/printk.h
81861 @@ -110,6 +110,8 @@ static inline __printf(1, 2) __cold
81862 void early_printk(const char *s, ...) { }
81863 #endif
81864
81865 +extern int kptr_restrict;
81866 +
81867 #ifdef CONFIG_PRINTK
81868 asmlinkage __printf(5, 0)
81869 int vprintk_emit(int facility, int level,
81870 @@ -144,7 +146,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
81871
81872 extern int printk_delay_msec;
81873 extern int dmesg_restrict;
81874 -extern int kptr_restrict;
81875
81876 extern void wake_up_klogd(void);
81877
81878 diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
81879 index 608e60a..79cfb18 100644
81880 --- a/include/linux/proc_fs.h
81881 +++ b/include/linux/proc_fs.h
81882 @@ -17,8 +17,11 @@ extern void proc_flush_task(struct task_struct *);
81883 extern struct proc_dir_entry *proc_symlink(const char *,
81884 struct proc_dir_entry *, const char *);
81885 extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
81886 +extern struct proc_dir_entry *proc_mkdir_restrict(const char *, struct proc_dir_entry *);
81887 extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
81888 struct proc_dir_entry *, void *);
81889 +extern struct proc_dir_entry *proc_mkdir_data_restrict(const char *, umode_t,
81890 + struct proc_dir_entry *, void *);
81891 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
81892 struct proc_dir_entry *);
81893
81894 @@ -34,6 +37,19 @@ static inline struct proc_dir_entry *proc_create(
81895 return proc_create_data(name, mode, parent, proc_fops, NULL);
81896 }
81897
81898 +static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
81899 + struct proc_dir_entry *parent, const struct file_operations *proc_fops)
81900 +{
81901 +#ifdef CONFIG_GRKERNSEC_PROC_USER
81902 + return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
81903 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
81904 + return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
81905 +#else
81906 + return proc_create_data(name, mode, parent, proc_fops, NULL);
81907 +#endif
81908 +}
81909 +
81910 +
81911 extern void proc_set_size(struct proc_dir_entry *, loff_t);
81912 extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
81913 extern void *PDE_DATA(const struct inode *);
81914 @@ -52,8 +68,12 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
81915 struct proc_dir_entry *parent,const char *dest) { return NULL;}
81916 static inline struct proc_dir_entry *proc_mkdir(const char *name,
81917 struct proc_dir_entry *parent) {return NULL;}
81918 +static inline struct proc_dir_entry *proc_mkdir_restrict(const char *name,
81919 + struct proc_dir_entry *parent) { return NULL; }
81920 static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
81921 umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
81922 +static inline struct proc_dir_entry *proc_mkdir_data_restrict(const char *name,
81923 + umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
81924 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
81925 umode_t mode, struct proc_dir_entry *parent) { return NULL; }
81926 #define proc_create(name, mode, parent, proc_fops) ({NULL;})
81927 @@ -73,7 +93,7 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
81928 static inline struct proc_dir_entry *proc_net_mkdir(
81929 struct net *net, const char *name, struct proc_dir_entry *parent)
81930 {
81931 - return proc_mkdir_data(name, 0, parent, net);
81932 + return proc_mkdir_data_restrict(name, 0, parent, net);
81933 }
81934
81935 #endif /* _LINUX_PROC_FS_H */
81936 diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
81937 index 34a1e10..70f6bde 100644
81938 --- a/include/linux/proc_ns.h
81939 +++ b/include/linux/proc_ns.h
81940 @@ -14,7 +14,7 @@ struct proc_ns_operations {
81941 void (*put)(void *ns);
81942 int (*install)(struct nsproxy *nsproxy, void *ns);
81943 unsigned int (*inum)(void *ns);
81944 -};
81945 +} __do_const __randomize_layout;
81946
81947 struct proc_ns {
81948 void *ns;
81949 diff --git a/include/linux/quota.h b/include/linux/quota.h
81950 index cc7494a..1e27036 100644
81951 --- a/include/linux/quota.h
81952 +++ b/include/linux/quota.h
81953 @@ -70,7 +70,7 @@ struct kqid { /* Type in which we store the quota identifier */
81954
81955 extern bool qid_eq(struct kqid left, struct kqid right);
81956 extern bool qid_lt(struct kqid left, struct kqid right);
81957 -extern qid_t from_kqid(struct user_namespace *to, struct kqid qid);
81958 +extern qid_t from_kqid(struct user_namespace *to, struct kqid qid) __intentional_overflow(-1);
81959 extern qid_t from_kqid_munged(struct user_namespace *to, struct kqid qid);
81960 extern bool qid_valid(struct kqid qid);
81961
81962 diff --git a/include/linux/random.h b/include/linux/random.h
81963 index 57fbbff..2331f3f 100644
81964 --- a/include/linux/random.h
81965 +++ b/include/linux/random.h
81966 @@ -9,9 +9,19 @@
81967 #include <uapi/linux/random.h>
81968
81969 extern void add_device_randomness(const void *, unsigned int);
81970 +
81971 +static inline void add_latent_entropy(void)
81972 +{
81973 +
81974 +#ifdef LATENT_ENTROPY_PLUGIN
81975 + add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
81976 +#endif
81977 +
81978 +}
81979 +
81980 extern void add_input_randomness(unsigned int type, unsigned int code,
81981 - unsigned int value);
81982 -extern void add_interrupt_randomness(int irq, int irq_flags);
81983 + unsigned int value) __latent_entropy;
81984 +extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
81985
81986 extern void get_random_bytes(void *buf, int nbytes);
81987 extern void get_random_bytes_arch(void *buf, int nbytes);
81988 @@ -22,10 +32,10 @@ extern int random_int_secret_init(void);
81989 extern const struct file_operations random_fops, urandom_fops;
81990 #endif
81991
81992 -unsigned int get_random_int(void);
81993 +unsigned int __intentional_overflow(-1) get_random_int(void);
81994 unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
81995
81996 -u32 prandom_u32(void);
81997 +u32 prandom_u32(void) __intentional_overflow(-1);
81998 void prandom_bytes(void *buf, int nbytes);
81999 void prandom_seed(u32 seed);
82000 void prandom_reseed_late(void);
82001 @@ -37,6 +47,11 @@ struct rnd_state {
82002 u32 prandom_u32_state(struct rnd_state *state);
82003 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
82004
82005 +static inline unsigned long __intentional_overflow(-1) pax_get_random_long(void)
82006 +{
82007 + return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
82008 +}
82009 +
82010 /**
82011 * prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
82012 * @ep_ro: right open interval endpoint
82013 diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
82014 index fea49b5..2ac22bb 100644
82015 --- a/include/linux/rbtree_augmented.h
82016 +++ b/include/linux/rbtree_augmented.h
82017 @@ -80,7 +80,9 @@ rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new) \
82018 old->rbaugmented = rbcompute(old); \
82019 } \
82020 rbstatic const struct rb_augment_callbacks rbname = { \
82021 - rbname ## _propagate, rbname ## _copy, rbname ## _rotate \
82022 + .propagate = rbname ## _propagate, \
82023 + .copy = rbname ## _copy, \
82024 + .rotate = rbname ## _rotate \
82025 };
82026
82027
82028 diff --git a/include/linux/rculist.h b/include/linux/rculist.h
82029 index 8183b46..a388711 100644
82030 --- a/include/linux/rculist.h
82031 +++ b/include/linux/rculist.h
82032 @@ -29,8 +29,8 @@
82033 */
82034 static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
82035 {
82036 - ACCESS_ONCE(list->next) = list;
82037 - ACCESS_ONCE(list->prev) = list;
82038 + ACCESS_ONCE_RW(list->next) = list;
82039 + ACCESS_ONCE_RW(list->prev) = list;
82040 }
82041
82042 /*
82043 @@ -59,6 +59,9 @@ void __list_add_rcu(struct list_head *new,
82044 struct list_head *prev, struct list_head *next);
82045 #endif
82046
82047 +void __pax_list_add_rcu(struct list_head *new,
82048 + struct list_head *prev, struct list_head *next);
82049 +
82050 /**
82051 * list_add_rcu - add a new entry to rcu-protected list
82052 * @new: new entry to be added
82053 @@ -80,6 +83,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
82054 __list_add_rcu(new, head, head->next);
82055 }
82056
82057 +static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
82058 +{
82059 + __pax_list_add_rcu(new, head, head->next);
82060 +}
82061 +
82062 /**
82063 * list_add_tail_rcu - add a new entry to rcu-protected list
82064 * @new: new entry to be added
82065 @@ -102,6 +110,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
82066 __list_add_rcu(new, head->prev, head);
82067 }
82068
82069 +static inline void pax_list_add_tail_rcu(struct list_head *new,
82070 + struct list_head *head)
82071 +{
82072 + __pax_list_add_rcu(new, head->prev, head);
82073 +}
82074 +
82075 /**
82076 * list_del_rcu - deletes entry from list without re-initialization
82077 * @entry: the element to delete from the list.
82078 @@ -132,6 +146,8 @@ static inline void list_del_rcu(struct list_head *entry)
82079 entry->prev = LIST_POISON2;
82080 }
82081
82082 +extern void pax_list_del_rcu(struct list_head *entry);
82083 +
82084 /**
82085 * hlist_del_init_rcu - deletes entry from hash list with re-initialization
82086 * @n: the element to delete from the hash list.
82087 diff --git a/include/linux/reboot.h b/include/linux/reboot.h
82088 index 48bf152..d38b785 100644
82089 --- a/include/linux/reboot.h
82090 +++ b/include/linux/reboot.h
82091 @@ -44,9 +44,9 @@ extern int unregister_reboot_notifier(struct notifier_block *);
82092 */
82093
82094 extern void migrate_to_reboot_cpu(void);
82095 -extern void machine_restart(char *cmd);
82096 -extern void machine_halt(void);
82097 -extern void machine_power_off(void);
82098 +extern void machine_restart(char *cmd) __noreturn;
82099 +extern void machine_halt(void) __noreturn;
82100 +extern void machine_power_off(void) __noreturn;
82101
82102 extern void machine_shutdown(void);
82103 struct pt_regs;
82104 @@ -57,9 +57,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
82105 */
82106
82107 extern void kernel_restart_prepare(char *cmd);
82108 -extern void kernel_restart(char *cmd);
82109 -extern void kernel_halt(void);
82110 -extern void kernel_power_off(void);
82111 +extern void kernel_restart(char *cmd) __noreturn;
82112 +extern void kernel_halt(void) __noreturn;
82113 +extern void kernel_power_off(void) __noreturn;
82114
82115 extern int C_A_D; /* for sysctl */
82116 void ctrl_alt_del(void);
82117 @@ -73,7 +73,7 @@ extern int orderly_poweroff(bool force);
82118 * Emergency restart, callable from an interrupt handler.
82119 */
82120
82121 -extern void emergency_restart(void);
82122 +extern void emergency_restart(void) __noreturn;
82123 #include <asm/emergency-restart.h>
82124
82125 #endif /* _LINUX_REBOOT_H */
82126 diff --git a/include/linux/regset.h b/include/linux/regset.h
82127 index 8e0c9fe..ac4d221 100644
82128 --- a/include/linux/regset.h
82129 +++ b/include/linux/regset.h
82130 @@ -161,7 +161,8 @@ struct user_regset {
82131 unsigned int align;
82132 unsigned int bias;
82133 unsigned int core_note_type;
82134 -};
82135 +} __do_const;
82136 +typedef struct user_regset __no_const user_regset_no_const;
82137
82138 /**
82139 * struct user_regset_view - available regsets
82140 diff --git a/include/linux/relay.h b/include/linux/relay.h
82141 index d7c8359..818daf5 100644
82142 --- a/include/linux/relay.h
82143 +++ b/include/linux/relay.h
82144 @@ -157,7 +157,7 @@ struct rchan_callbacks
82145 * The callback should return 0 if successful, negative if not.
82146 */
82147 int (*remove_buf_file)(struct dentry *dentry);
82148 -};
82149 +} __no_const;
82150
82151 /*
82152 * CONFIG_RELAY kernel API, kernel/relay.c
82153 diff --git a/include/linux/rio.h b/include/linux/rio.h
82154 index 6bda06f..bf39a9b 100644
82155 --- a/include/linux/rio.h
82156 +++ b/include/linux/rio.h
82157 @@ -358,7 +358,7 @@ struct rio_ops {
82158 int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart,
82159 u64 rstart, u32 size, u32 flags);
82160 void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
82161 -};
82162 +} __no_const;
82163
82164 #define RIO_RESOURCE_MEM 0x00000100
82165 #define RIO_RESOURCE_DOORBELL 0x00000200
82166 diff --git a/include/linux/rmap.h b/include/linux/rmap.h
82167 index b66c211..13d2915 100644
82168 --- a/include/linux/rmap.h
82169 +++ b/include/linux/rmap.h
82170 @@ -145,8 +145,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
82171 void anon_vma_init(void); /* create anon_vma_cachep */
82172 int anon_vma_prepare(struct vm_area_struct *);
82173 void unlink_anon_vmas(struct vm_area_struct *);
82174 -int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
82175 -int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
82176 +int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
82177 +int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
82178
82179 static inline void anon_vma_merge(struct vm_area_struct *vma,
82180 struct vm_area_struct *next)
82181 diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
82182 index a964f72..b475afb 100644
82183 --- a/include/linux/scatterlist.h
82184 +++ b/include/linux/scatterlist.h
82185 @@ -1,6 +1,7 @@
82186 #ifndef _LINUX_SCATTERLIST_H
82187 #define _LINUX_SCATTERLIST_H
82188
82189 +#include <linux/sched.h>
82190 #include <linux/string.h>
82191 #include <linux/bug.h>
82192 #include <linux/mm.h>
82193 @@ -114,6 +115,12 @@ static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
82194 #ifdef CONFIG_DEBUG_SG
82195 BUG_ON(!virt_addr_valid(buf));
82196 #endif
82197 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
82198 + if (object_starts_on_stack(buf)) {
82199 + void *adjbuf = buf - current->stack + current->lowmem_stack;
82200 + sg_set_page(sg, virt_to_page(adjbuf), buflen, offset_in_page(adjbuf));
82201 + } else
82202 +#endif
82203 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
82204 }
82205
82206 diff --git a/include/linux/sched.h b/include/linux/sched.h
82207 index 221b2bd..e2e5f82 100644
82208 --- a/include/linux/sched.h
82209 +++ b/include/linux/sched.h
82210 @@ -131,6 +131,7 @@ struct fs_struct;
82211 struct perf_event_context;
82212 struct blk_plug;
82213 struct filename;
82214 +struct linux_binprm;
82215
82216 #define VMACACHE_BITS 2
82217 #define VMACACHE_SIZE (1U << VMACACHE_BITS)
82218 @@ -380,7 +381,7 @@ extern char __sched_text_start[], __sched_text_end[];
82219 extern int in_sched_functions(unsigned long addr);
82220
82221 #define MAX_SCHEDULE_TIMEOUT LONG_MAX
82222 -extern signed long schedule_timeout(signed long timeout);
82223 +extern signed long schedule_timeout(signed long timeout) __intentional_overflow(-1);
82224 extern signed long schedule_timeout_interruptible(signed long timeout);
82225 extern signed long schedule_timeout_killable(signed long timeout);
82226 extern signed long schedule_timeout_uninterruptible(signed long timeout);
82227 @@ -391,6 +392,19 @@ struct nsproxy;
82228 struct user_namespace;
82229
82230 #ifdef CONFIG_MMU
82231 +
82232 +#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
82233 +extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
82234 +#else
82235 +static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
82236 +{
82237 + return 0;
82238 +}
82239 +#endif
82240 +
82241 +extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
82242 +extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
82243 +
82244 extern void arch_pick_mmap_layout(struct mm_struct *mm);
82245 extern unsigned long
82246 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
82247 @@ -688,6 +702,17 @@ struct signal_struct {
82248 #ifdef CONFIG_TASKSTATS
82249 struct taskstats *stats;
82250 #endif
82251 +
82252 +#ifdef CONFIG_GRKERNSEC
82253 + u32 curr_ip;
82254 + u32 saved_ip;
82255 + u32 gr_saddr;
82256 + u32 gr_daddr;
82257 + u16 gr_sport;
82258 + u16 gr_dport;
82259 + u8 used_accept:1;
82260 +#endif
82261 +
82262 #ifdef CONFIG_AUDIT
82263 unsigned audit_tty;
82264 unsigned audit_tty_log_passwd;
82265 @@ -714,7 +739,7 @@ struct signal_struct {
82266 struct mutex cred_guard_mutex; /* guard against foreign influences on
82267 * credential calculations
82268 * (notably. ptrace) */
82269 -};
82270 +} __randomize_layout;
82271
82272 /*
82273 * Bits in flags field of signal_struct.
82274 @@ -768,6 +793,14 @@ struct user_struct {
82275 struct key *session_keyring; /* UID's default session keyring */
82276 #endif
82277
82278 +#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
82279 + unsigned char kernel_banned;
82280 +#endif
82281 +#ifdef CONFIG_GRKERNSEC_BRUTE
82282 + unsigned char suid_banned;
82283 + unsigned long suid_ban_expires;
82284 +#endif
82285 +
82286 /* Hash table maintenance information */
82287 struct hlist_node uidhash_node;
82288 kuid_t uid;
82289 @@ -775,7 +808,7 @@ struct user_struct {
82290 #ifdef CONFIG_PERF_EVENTS
82291 atomic_long_t locked_vm;
82292 #endif
82293 -};
82294 +} __randomize_layout;
82295
82296 extern int uids_sysfs_init(void);
82297
82298 @@ -1179,6 +1212,9 @@ enum perf_event_task_context {
82299 struct task_struct {
82300 volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
82301 void *stack;
82302 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
82303 + void *lowmem_stack;
82304 +#endif
82305 atomic_t usage;
82306 unsigned int flags; /* per process flags, defined below */
82307 unsigned int ptrace;
82308 @@ -1304,8 +1340,8 @@ struct task_struct {
82309 struct list_head thread_node;
82310
82311 struct completion *vfork_done; /* for vfork() */
82312 - int __user *set_child_tid; /* CLONE_CHILD_SETTID */
82313 - int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
82314 + pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
82315 + pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
82316
82317 cputime_t utime, stime, utimescaled, stimescaled;
82318 cputime_t gtime;
82319 @@ -1330,11 +1366,6 @@ struct task_struct {
82320 struct task_cputime cputime_expires;
82321 struct list_head cpu_timers[3];
82322
82323 -/* process credentials */
82324 - const struct cred __rcu *real_cred; /* objective and real subjective task
82325 - * credentials (COW) */
82326 - const struct cred __rcu *cred; /* effective (overridable) subjective task
82327 - * credentials (COW) */
82328 char comm[TASK_COMM_LEN]; /* executable name excluding path
82329 - access with [gs]et_task_comm (which lock
82330 it with task_lock())
82331 @@ -1351,6 +1382,10 @@ struct task_struct {
82332 #endif
82333 /* CPU-specific state of this task */
82334 struct thread_struct thread;
82335 +/* thread_info moved to task_struct */
82336 +#ifdef CONFIG_X86
82337 + struct thread_info tinfo;
82338 +#endif
82339 /* filesystem information */
82340 struct fs_struct *fs;
82341 /* open file information */
82342 @@ -1427,6 +1462,10 @@ struct task_struct {
82343 gfp_t lockdep_reclaim_gfp;
82344 #endif
82345
82346 +/* process credentials */
82347 + const struct cred __rcu *real_cred; /* objective and real subjective task
82348 + * credentials (COW) */
82349 +
82350 /* journalling filesystem info */
82351 void *journal_info;
82352
82353 @@ -1465,6 +1504,10 @@ struct task_struct {
82354 /* cg_list protected by css_set_lock and tsk->alloc_lock */
82355 struct list_head cg_list;
82356 #endif
82357 +
82358 + const struct cred __rcu *cred; /* effective (overridable) subjective task
82359 + * credentials (COW) */
82360 +
82361 #ifdef CONFIG_FUTEX
82362 struct robust_list_head __user *robust_list;
82363 #ifdef CONFIG_COMPAT
82364 @@ -1610,7 +1653,78 @@ struct task_struct {
82365 unsigned int sequential_io;
82366 unsigned int sequential_io_avg;
82367 #endif
82368 -};
82369 +
82370 +#ifdef CONFIG_GRKERNSEC
82371 + /* grsecurity */
82372 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
82373 + u64 exec_id;
82374 +#endif
82375 +#ifdef CONFIG_GRKERNSEC_SETXID
82376 + const struct cred *delayed_cred;
82377 +#endif
82378 + struct dentry *gr_chroot_dentry;
82379 + struct acl_subject_label *acl;
82380 + struct acl_subject_label *tmpacl;
82381 + struct acl_role_label *role;
82382 + struct file *exec_file;
82383 + unsigned long brute_expires;
82384 + u16 acl_role_id;
82385 + u8 inherited;
82386 + /* is this the task that authenticated to the special role */
82387 + u8 acl_sp_role;
82388 + u8 is_writable;
82389 + u8 brute;
82390 + u8 gr_is_chrooted;
82391 +#endif
82392 +
82393 +} __randomize_layout;
82394 +
82395 +#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
82396 +#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
82397 +#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
82398 +#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
82399 +/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
82400 +#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
82401 +
82402 +#ifdef CONFIG_PAX_SOFTMODE
82403 +extern int pax_softmode;
82404 +#endif
82405 +
82406 +extern int pax_check_flags(unsigned long *);
82407 +#define PAX_PARSE_FLAGS_FALLBACK (~0UL)
82408 +
82409 +/* if tsk != current then task_lock must be held on it */
82410 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
82411 +static inline unsigned long pax_get_flags(struct task_struct *tsk)
82412 +{
82413 + if (likely(tsk->mm))
82414 + return tsk->mm->pax_flags;
82415 + else
82416 + return 0UL;
82417 +}
82418 +
82419 +/* if tsk != current then task_lock must be held on it */
82420 +static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
82421 +{
82422 + if (likely(tsk->mm)) {
82423 + tsk->mm->pax_flags = flags;
82424 + return 0;
82425 + }
82426 + return -EINVAL;
82427 +}
82428 +#endif
82429 +
82430 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
82431 +extern void pax_set_initial_flags(struct linux_binprm *bprm);
82432 +#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
82433 +extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
82434 +#endif
82435 +
82436 +struct path;
82437 +extern char *pax_get_path(const struct path *path, char *buf, int buflen);
82438 +extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
82439 +extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
82440 +extern void pax_report_refcount_overflow(struct pt_regs *regs);
82441
82442 /* Future-safe accessor for struct task_struct's cpus_allowed. */
82443 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
82444 @@ -1692,7 +1806,7 @@ struct pid_namespace;
82445 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
82446 struct pid_namespace *ns);
82447
82448 -static inline pid_t task_pid_nr(struct task_struct *tsk)
82449 +static inline pid_t task_pid_nr(const struct task_struct *tsk)
82450 {
82451 return tsk->pid;
82452 }
82453 @@ -2039,6 +2153,25 @@ extern u64 sched_clock_cpu(int cpu);
82454
82455 extern void sched_clock_init(void);
82456
82457 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
82458 +static inline void populate_stack(void)
82459 +{
82460 + struct task_struct *curtask = current;
82461 + int c;
82462 + int *ptr = curtask->stack;
82463 + int *end = curtask->stack + THREAD_SIZE;
82464 +
82465 + while (ptr < end) {
82466 + c = *(volatile int *)ptr;
82467 + ptr += PAGE_SIZE/sizeof(int);
82468 + }
82469 +}
82470 +#else
82471 +static inline void populate_stack(void)
82472 +{
82473 +}
82474 +#endif
82475 +
82476 #ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
82477 static inline void sched_clock_tick(void)
82478 {
82479 @@ -2172,7 +2305,9 @@ void yield(void);
82480 extern struct exec_domain default_exec_domain;
82481
82482 union thread_union {
82483 +#ifndef CONFIG_X86
82484 struct thread_info thread_info;
82485 +#endif
82486 unsigned long stack[THREAD_SIZE/sizeof(long)];
82487 };
82488
82489 @@ -2205,6 +2340,7 @@ extern struct pid_namespace init_pid_ns;
82490 */
82491
82492 extern struct task_struct *find_task_by_vpid(pid_t nr);
82493 +extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
82494 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
82495 struct pid_namespace *ns);
82496
82497 @@ -2367,7 +2503,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
82498 extern void exit_itimers(struct signal_struct *);
82499 extern void flush_itimer_signals(void);
82500
82501 -extern void do_group_exit(int);
82502 +extern __noreturn void do_group_exit(int);
82503
82504 extern int allow_signal(int);
82505 extern int disallow_signal(int);
82506 @@ -2568,9 +2704,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
82507
82508 #endif
82509
82510 -static inline int object_is_on_stack(void *obj)
82511 +static inline int object_starts_on_stack(const void *obj)
82512 {
82513 - void *stack = task_stack_page(current);
82514 + const void *stack = task_stack_page(current);
82515
82516 return (obj >= stack) && (obj < (stack + THREAD_SIZE));
82517 }
82518 diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
82519 index 8045a55..c959cd5 100644
82520 --- a/include/linux/sched/sysctl.h
82521 +++ b/include/linux/sched/sysctl.h
82522 @@ -30,6 +30,7 @@ enum { sysctl_hung_task_timeout_secs = 0 };
82523 #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
82524
82525 extern int sysctl_max_map_count;
82526 +extern unsigned long sysctl_heap_stack_gap;
82527
82528 extern unsigned int sysctl_sched_latency;
82529 extern unsigned int sysctl_sched_min_granularity;
82530 diff --git a/include/linux/security.h b/include/linux/security.h
82531 index 6478ce3..5e6ad6e 100644
82532 --- a/include/linux/security.h
82533 +++ b/include/linux/security.h
82534 @@ -27,6 +27,7 @@
82535 #include <linux/slab.h>
82536 #include <linux/err.h>
82537 #include <linux/string.h>
82538 +#include <linux/grsecurity.h>
82539
82540 struct linux_binprm;
82541 struct cred;
82542 @@ -116,8 +117,6 @@ struct seq_file;
82543
82544 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
82545
82546 -void reset_security_ops(void);
82547 -
82548 #ifdef CONFIG_MMU
82549 extern unsigned long mmap_min_addr;
82550 extern unsigned long dac_mmap_min_addr;
82551 @@ -1719,7 +1718,7 @@ struct security_operations {
82552 struct audit_context *actx);
82553 void (*audit_rule_free) (void *lsmrule);
82554 #endif /* CONFIG_AUDIT */
82555 -};
82556 +} __randomize_layout;
82557
82558 /* prototypes */
82559 extern int security_init(void);
82560 diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
82561 index dc368b8..e895209 100644
82562 --- a/include/linux/semaphore.h
82563 +++ b/include/linux/semaphore.h
82564 @@ -37,7 +37,7 @@ static inline void sema_init(struct semaphore *sem, int val)
82565 }
82566
82567 extern void down(struct semaphore *sem);
82568 -extern int __must_check down_interruptible(struct semaphore *sem);
82569 +extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
82570 extern int __must_check down_killable(struct semaphore *sem);
82571 extern int __must_check down_trylock(struct semaphore *sem);
82572 extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
82573 diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
82574 index 52e0097..383f21d 100644
82575 --- a/include/linux/seq_file.h
82576 +++ b/include/linux/seq_file.h
82577 @@ -27,6 +27,9 @@ struct seq_file {
82578 struct mutex lock;
82579 const struct seq_operations *op;
82580 int poll_event;
82581 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
82582 + u64 exec_id;
82583 +#endif
82584 #ifdef CONFIG_USER_NS
82585 struct user_namespace *user_ns;
82586 #endif
82587 @@ -39,6 +42,7 @@ struct seq_operations {
82588 void * (*next) (struct seq_file *m, void *v, loff_t *pos);
82589 int (*show) (struct seq_file *m, void *v);
82590 };
82591 +typedef struct seq_operations __no_const seq_operations_no_const;
82592
82593 #define SEQ_SKIP 1
82594
82595 @@ -96,6 +100,7 @@ void seq_pad(struct seq_file *m, char c);
82596
82597 char *mangle_path(char *s, const char *p, const char *esc);
82598 int seq_open(struct file *, const struct seq_operations *);
82599 +int seq_open_restrict(struct file *, const struct seq_operations *);
82600 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
82601 loff_t seq_lseek(struct file *, loff_t, int);
82602 int seq_release(struct inode *, struct file *);
82603 @@ -138,6 +143,7 @@ static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask)
82604 }
82605
82606 int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
82607 +int single_open_restrict(struct file *, int (*)(struct seq_file *, void *), void *);
82608 int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
82609 int single_release(struct inode *, struct file *);
82610 void *__seq_open_private(struct file *, const struct seq_operations *, int);
82611 diff --git a/include/linux/shm.h b/include/linux/shm.h
82612 index 1e2cd2e..0288750 100644
82613 --- a/include/linux/shm.h
82614 +++ b/include/linux/shm.h
82615 @@ -21,6 +21,10 @@ struct shmid_kernel /* private to the kernel */
82616
82617 /* The task created the shm object. NULL if the task is dead. */
82618 struct task_struct *shm_creator;
82619 +#ifdef CONFIG_GRKERNSEC
82620 + time_t shm_createtime;
82621 + pid_t shm_lapid;
82622 +#endif
82623 };
82624
82625 /* shm_mode upper byte flags */
82626 diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
82627 index 08074a8..e2ae280 100644
82628 --- a/include/linux/skbuff.h
82629 +++ b/include/linux/skbuff.h
82630 @@ -717,7 +717,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
82631 struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
82632 int node);
82633 struct sk_buff *build_skb(void *data, unsigned int frag_size);
82634 -static inline struct sk_buff *alloc_skb(unsigned int size,
82635 +static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
82636 gfp_t priority)
82637 {
82638 return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
82639 @@ -1825,7 +1825,7 @@ static inline u32 skb_inner_network_header_len(const struct sk_buff *skb)
82640 return skb->inner_transport_header - skb->inner_network_header;
82641 }
82642
82643 -static inline int skb_network_offset(const struct sk_buff *skb)
82644 +static inline int __intentional_overflow(0) skb_network_offset(const struct sk_buff *skb)
82645 {
82646 return skb_network_header(skb) - skb->data;
82647 }
82648 @@ -1885,7 +1885,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
82649 * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
82650 */
82651 #ifndef NET_SKB_PAD
82652 -#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
82653 +#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES)
82654 #endif
82655
82656 int ___pskb_trim(struct sk_buff *skb, unsigned int len);
82657 @@ -2484,7 +2484,7 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
82658 int *err);
82659 unsigned int datagram_poll(struct file *file, struct socket *sock,
82660 struct poll_table_struct *wait);
82661 -int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
82662 +int __intentional_overflow(0) skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
82663 struct iovec *to, int size);
82664 int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
82665 struct iovec *iov);
82666 @@ -2776,6 +2776,9 @@ static inline void nf_reset(struct sk_buff *skb)
82667 nf_bridge_put(skb->nf_bridge);
82668 skb->nf_bridge = NULL;
82669 #endif
82670 +#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
82671 + skb->nf_trace = 0;
82672 +#endif
82673 }
82674
82675 static inline void nf_reset_trace(struct sk_buff *skb)
82676 diff --git a/include/linux/slab.h b/include/linux/slab.h
82677 index 307bfbe..a999cf3 100644
82678 --- a/include/linux/slab.h
82679 +++ b/include/linux/slab.h
82680 @@ -14,15 +14,29 @@
82681 #include <linux/gfp.h>
82682 #include <linux/types.h>
82683 #include <linux/workqueue.h>
82684 -
82685 +#include <linux/err.h>
82686
82687 /*
82688 * Flags to pass to kmem_cache_create().
82689 * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
82690 */
82691 #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */
82692 +
82693 +#ifdef CONFIG_PAX_USERCOPY_SLABS
82694 +#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */
82695 +#else
82696 +#define SLAB_USERCOPY 0x00000000UL
82697 +#endif
82698 +
82699 #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */
82700 #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */
82701 +
82702 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
82703 +#define SLAB_NO_SANITIZE 0x00001000UL /* PaX: Do not sanitize objs on free */
82704 +#else
82705 +#define SLAB_NO_SANITIZE 0x00000000UL
82706 +#endif
82707 +
82708 #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */
82709 #define SLAB_CACHE_DMA 0x00004000UL /* Use GFP_DMA memory */
82710 #define SLAB_STORE_USER 0x00010000UL /* DEBUG: Store the last owner for bug hunting */
82711 @@ -98,10 +112,13 @@
82712 * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
82713 * Both make kfree a no-op.
82714 */
82715 -#define ZERO_SIZE_PTR ((void *)16)
82716 +#define ZERO_SIZE_PTR \
82717 +({ \
82718 + BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
82719 + (void *)(-MAX_ERRNO-1L); \
82720 +})
82721
82722 -#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
82723 - (unsigned long)ZERO_SIZE_PTR)
82724 +#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
82725
82726 #include <linux/kmemleak.h>
82727
82728 @@ -142,6 +159,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
82729 void kfree(const void *);
82730 void kzfree(const void *);
82731 size_t ksize(const void *);
82732 +const char *check_heap_object(const void *ptr, unsigned long n);
82733 +bool is_usercopy_object(const void *ptr);
82734
82735 /*
82736 * Some archs want to perform DMA into kmalloc caches and need a guaranteed
82737 @@ -174,7 +193,7 @@ struct kmem_cache {
82738 unsigned int align; /* Alignment as calculated */
82739 unsigned long flags; /* Active flags on the slab */
82740 const char *name; /* Slab name for sysfs */
82741 - int refcount; /* Use counter */
82742 + atomic_t refcount; /* Use counter */
82743 void (*ctor)(void *); /* Called on object slot creation */
82744 struct list_head list; /* List of all slab caches on the system */
82745 };
82746 @@ -259,6 +278,10 @@ extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
82747 extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
82748 #endif
82749
82750 +#ifdef CONFIG_PAX_USERCOPY_SLABS
82751 +extern struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
82752 +#endif
82753 +
82754 /*
82755 * Figure out which kmalloc slab an allocation of a certain size
82756 * belongs to.
82757 @@ -267,7 +290,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
82758 * 2 = 120 .. 192 bytes
82759 * n = 2^(n-1) .. 2^n -1
82760 */
82761 -static __always_inline int kmalloc_index(size_t size)
82762 +static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
82763 {
82764 if (!size)
82765 return 0;
82766 @@ -310,11 +333,11 @@ static __always_inline int kmalloc_index(size_t size)
82767 }
82768 #endif /* !CONFIG_SLOB */
82769
82770 -void *__kmalloc(size_t size, gfp_t flags);
82771 +void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1);
82772 void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags);
82773
82774 #ifdef CONFIG_NUMA
82775 -void *__kmalloc_node(size_t size, gfp_t flags, int node);
82776 +void *__kmalloc_node(size_t size, gfp_t flags, int node) __alloc_size(1);
82777 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
82778 #else
82779 static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
82780 diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
82781 index 8235dfb..47ce586 100644
82782 --- a/include/linux/slab_def.h
82783 +++ b/include/linux/slab_def.h
82784 @@ -38,7 +38,7 @@ struct kmem_cache {
82785 /* 4) cache creation/removal */
82786 const char *name;
82787 struct list_head list;
82788 - int refcount;
82789 + atomic_t refcount;
82790 int object_size;
82791 int align;
82792
82793 @@ -54,10 +54,14 @@ struct kmem_cache {
82794 unsigned long node_allocs;
82795 unsigned long node_frees;
82796 unsigned long node_overflow;
82797 - atomic_t allochit;
82798 - atomic_t allocmiss;
82799 - atomic_t freehit;
82800 - atomic_t freemiss;
82801 + atomic_unchecked_t allochit;
82802 + atomic_unchecked_t allocmiss;
82803 + atomic_unchecked_t freehit;
82804 + atomic_unchecked_t freemiss;
82805 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
82806 + atomic_unchecked_t sanitized;
82807 + atomic_unchecked_t not_sanitized;
82808 +#endif
82809
82810 /*
82811 * If debugging is enabled, then the allocator can add additional
82812 diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
82813 index d82abd4..408c3a0 100644
82814 --- a/include/linux/slub_def.h
82815 +++ b/include/linux/slub_def.h
82816 @@ -74,7 +74,7 @@ struct kmem_cache {
82817 struct kmem_cache_order_objects max;
82818 struct kmem_cache_order_objects min;
82819 gfp_t allocflags; /* gfp flags to use on each alloc */
82820 - int refcount; /* Refcount for slab cache destroy */
82821 + atomic_t refcount; /* Refcount for slab cache destroy */
82822 void (*ctor)(void *);
82823 int inuse; /* Offset to metadata */
82824 int align; /* Alignment */
82825 diff --git a/include/linux/smp.h b/include/linux/smp.h
82826 index 633f5ed..6c3dc3f 100644
82827 --- a/include/linux/smp.h
82828 +++ b/include/linux/smp.h
82829 @@ -176,7 +176,9 @@ static inline void kick_all_cpus_sync(void) { }
82830 #endif
82831
82832 #define get_cpu() ({ preempt_disable(); smp_processor_id(); })
82833 +#define raw_get_cpu() ({ raw_preempt_disable(); raw_smp_processor_id(); })
82834 #define put_cpu() preempt_enable()
82835 +#define raw_put_cpu_no_resched() raw_preempt_enable_no_resched()
82836
82837 /*
82838 * Callback to arch code if there's nosmp or maxcpus=0 on the
82839 diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
82840 index 46cca4c..3323536 100644
82841 --- a/include/linux/sock_diag.h
82842 +++ b/include/linux/sock_diag.h
82843 @@ -11,7 +11,7 @@ struct sock;
82844 struct sock_diag_handler {
82845 __u8 family;
82846 int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
82847 -};
82848 +} __do_const;
82849
82850 int sock_diag_register(const struct sock_diag_handler *h);
82851 void sock_diag_unregister(const struct sock_diag_handler *h);
82852 diff --git a/include/linux/sonet.h b/include/linux/sonet.h
82853 index 680f9a3..f13aeb0 100644
82854 --- a/include/linux/sonet.h
82855 +++ b/include/linux/sonet.h
82856 @@ -7,7 +7,7 @@
82857 #include <uapi/linux/sonet.h>
82858
82859 struct k_sonet_stats {
82860 -#define __HANDLE_ITEM(i) atomic_t i
82861 +#define __HANDLE_ITEM(i) atomic_unchecked_t i
82862 __SONET_ITEMS
82863 #undef __HANDLE_ITEM
82864 };
82865 diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
82866 index 07d8e53..dc934c9 100644
82867 --- a/include/linux/sunrpc/addr.h
82868 +++ b/include/linux/sunrpc/addr.h
82869 @@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
82870 {
82871 switch (sap->sa_family) {
82872 case AF_INET:
82873 - return ntohs(((struct sockaddr_in *)sap)->sin_port);
82874 + return ntohs(((const struct sockaddr_in *)sap)->sin_port);
82875 case AF_INET6:
82876 - return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
82877 + return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
82878 }
82879 return 0;
82880 }
82881 @@ -58,7 +58,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
82882 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
82883 const struct sockaddr *src)
82884 {
82885 - const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
82886 + const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
82887 struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
82888
82889 dsin->sin_family = ssin->sin_family;
82890 @@ -164,7 +164,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
82891 if (sa->sa_family != AF_INET6)
82892 return 0;
82893
82894 - return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
82895 + return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
82896 }
82897
82898 #endif /* _LINUX_SUNRPC_ADDR_H */
82899 diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
82900 index 70736b9..37f33db 100644
82901 --- a/include/linux/sunrpc/clnt.h
82902 +++ b/include/linux/sunrpc/clnt.h
82903 @@ -97,7 +97,7 @@ struct rpc_procinfo {
82904 unsigned int p_timer; /* Which RTT timer to use */
82905 u32 p_statidx; /* Which procedure to account */
82906 const char * p_name; /* name of procedure */
82907 -};
82908 +} __do_const;
82909
82910 #ifdef __KERNEL__
82911
82912 diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
82913 index 04e7632..2e2a8a3 100644
82914 --- a/include/linux/sunrpc/svc.h
82915 +++ b/include/linux/sunrpc/svc.h
82916 @@ -412,7 +412,7 @@ struct svc_procedure {
82917 unsigned int pc_count; /* call count */
82918 unsigned int pc_cachetype; /* cache info (NFS) */
82919 unsigned int pc_xdrressize; /* maximum size of XDR reply */
82920 -};
82921 +} __do_const;
82922
82923 /*
82924 * Function prototypes.
82925 diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
82926 index 0b8e3e6..33e0a01 100644
82927 --- a/include/linux/sunrpc/svc_rdma.h
82928 +++ b/include/linux/sunrpc/svc_rdma.h
82929 @@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
82930 extern unsigned int svcrdma_max_requests;
82931 extern unsigned int svcrdma_max_req_size;
82932
82933 -extern atomic_t rdma_stat_recv;
82934 -extern atomic_t rdma_stat_read;
82935 -extern atomic_t rdma_stat_write;
82936 -extern atomic_t rdma_stat_sq_starve;
82937 -extern atomic_t rdma_stat_rq_starve;
82938 -extern atomic_t rdma_stat_rq_poll;
82939 -extern atomic_t rdma_stat_rq_prod;
82940 -extern atomic_t rdma_stat_sq_poll;
82941 -extern atomic_t rdma_stat_sq_prod;
82942 +extern atomic_unchecked_t rdma_stat_recv;
82943 +extern atomic_unchecked_t rdma_stat_read;
82944 +extern atomic_unchecked_t rdma_stat_write;
82945 +extern atomic_unchecked_t rdma_stat_sq_starve;
82946 +extern atomic_unchecked_t rdma_stat_rq_starve;
82947 +extern atomic_unchecked_t rdma_stat_rq_poll;
82948 +extern atomic_unchecked_t rdma_stat_rq_prod;
82949 +extern atomic_unchecked_t rdma_stat_sq_poll;
82950 +extern atomic_unchecked_t rdma_stat_sq_prod;
82951
82952 #define RPCRDMA_VERSION 1
82953
82954 diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
82955 index 8d71d65..f79586e 100644
82956 --- a/include/linux/sunrpc/svcauth.h
82957 +++ b/include/linux/sunrpc/svcauth.h
82958 @@ -120,7 +120,7 @@ struct auth_ops {
82959 int (*release)(struct svc_rqst *rq);
82960 void (*domain_release)(struct auth_domain *);
82961 int (*set_client)(struct svc_rqst *rq);
82962 -};
82963 +} __do_const;
82964
82965 #define SVC_GARBAGE 1
82966 #define SVC_SYSERR 2
82967 diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
82968 index a5ffd32..0935dea 100644
82969 --- a/include/linux/swiotlb.h
82970 +++ b/include/linux/swiotlb.h
82971 @@ -60,7 +60,8 @@ extern void
82972
82973 extern void
82974 swiotlb_free_coherent(struct device *hwdev, size_t size,
82975 - void *vaddr, dma_addr_t dma_handle);
82976 + void *vaddr, dma_addr_t dma_handle,
82977 + struct dma_attrs *attrs);
82978
82979 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
82980 unsigned long offset, size_t size,
82981 diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
82982 index a4a0588..752870e 100644
82983 --- a/include/linux/syscalls.h
82984 +++ b/include/linux/syscalls.h
82985 @@ -98,10 +98,16 @@ struct sigaltstack;
82986 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
82987
82988 #define __SC_DECL(t, a) t a
82989 +#define __TYPE_IS_U(t) (__same_type((t)0, 0UL) || __same_type((t)0, 0U) || __same_type((t)0, (unsigned short)0) || __same_type((t)0, (unsigned char)0))
82990 #define __TYPE_IS_L(t) (__same_type((t)0, 0L))
82991 #define __TYPE_IS_UL(t) (__same_type((t)0, 0UL))
82992 #define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
82993 -#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
82994 +#define __SC_LONG(t, a) __typeof( \
82995 + __builtin_choose_expr( \
82996 + sizeof(t) > sizeof(int), \
82997 + (t) 0, \
82998 + __builtin_choose_expr(__TYPE_IS_U(t), 0UL, 0L) \
82999 + )) a
83000 #define __SC_CAST(t, a) (t) a
83001 #define __SC_ARGS(t, a) a
83002 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
83003 @@ -379,11 +385,11 @@ asmlinkage long sys_sync(void);
83004 asmlinkage long sys_fsync(unsigned int fd);
83005 asmlinkage long sys_fdatasync(unsigned int fd);
83006 asmlinkage long sys_bdflush(int func, long data);
83007 -asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
83008 - char __user *type, unsigned long flags,
83009 +asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
83010 + const char __user *type, unsigned long flags,
83011 void __user *data);
83012 -asmlinkage long sys_umount(char __user *name, int flags);
83013 -asmlinkage long sys_oldumount(char __user *name);
83014 +asmlinkage long sys_umount(const char __user *name, int flags);
83015 +asmlinkage long sys_oldumount(const char __user *name);
83016 asmlinkage long sys_truncate(const char __user *path, long length);
83017 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
83018 asmlinkage long sys_stat(const char __user *filename,
83019 @@ -595,7 +601,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
83020 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
83021 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
83022 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
83023 - struct sockaddr __user *, int);
83024 + struct sockaddr __user *, int) __intentional_overflow(0);
83025 asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
83026 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
83027 unsigned int vlen, unsigned flags);
83028 diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
83029 index 27b3b0b..e093dd9 100644
83030 --- a/include/linux/syscore_ops.h
83031 +++ b/include/linux/syscore_ops.h
83032 @@ -16,7 +16,7 @@ struct syscore_ops {
83033 int (*suspend)(void);
83034 void (*resume)(void);
83035 void (*shutdown)(void);
83036 -};
83037 +} __do_const;
83038
83039 extern void register_syscore_ops(struct syscore_ops *ops);
83040 extern void unregister_syscore_ops(struct syscore_ops *ops);
83041 diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
83042 index 14a8ff2..fa95f3a 100644
83043 --- a/include/linux/sysctl.h
83044 +++ b/include/linux/sysctl.h
83045 @@ -34,13 +34,13 @@ struct ctl_table_root;
83046 struct ctl_table_header;
83047 struct ctl_dir;
83048
83049 -typedef struct ctl_table ctl_table;
83050 -
83051 typedef int proc_handler (struct ctl_table *ctl, int write,
83052 void __user *buffer, size_t *lenp, loff_t *ppos);
83053
83054 extern int proc_dostring(struct ctl_table *, int,
83055 void __user *, size_t *, loff_t *);
83056 +extern int proc_dostring_modpriv(struct ctl_table *, int,
83057 + void __user *, size_t *, loff_t *);
83058 extern int proc_dointvec(struct ctl_table *, int,
83059 void __user *, size_t *, loff_t *);
83060 extern int proc_dointvec_minmax(struct ctl_table *, int,
83061 @@ -115,7 +115,9 @@ struct ctl_table
83062 struct ctl_table_poll *poll;
83063 void *extra1;
83064 void *extra2;
83065 -};
83066 +} __do_const __randomize_layout;
83067 +typedef struct ctl_table __no_const ctl_table_no_const;
83068 +typedef struct ctl_table ctl_table;
83069
83070 struct ctl_node {
83071 struct rb_node node;
83072 diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
83073 index 5ffaa34..fe3e31c 100644
83074 --- a/include/linux/sysfs.h
83075 +++ b/include/linux/sysfs.h
83076 @@ -34,7 +34,8 @@ struct attribute {
83077 struct lock_class_key *key;
83078 struct lock_class_key skey;
83079 #endif
83080 -};
83081 +} __do_const;
83082 +typedef struct attribute __no_const attribute_no_const;
83083
83084 /**
83085 * sysfs_attr_init - initialize a dynamically allocated sysfs attribute
83086 @@ -63,7 +64,8 @@ struct attribute_group {
83087 struct attribute *, int);
83088 struct attribute **attrs;
83089 struct bin_attribute **bin_attrs;
83090 -};
83091 +} __do_const;
83092 +typedef struct attribute_group __no_const attribute_group_no_const;
83093
83094 /**
83095 * Use these macros to make defining attributes easier. See include/linux/device.h
83096 @@ -128,7 +130,8 @@ struct bin_attribute {
83097 char *, loff_t, size_t);
83098 int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
83099 struct vm_area_struct *vma);
83100 -};
83101 +} __do_const;
83102 +typedef struct bin_attribute __no_const bin_attribute_no_const;
83103
83104 /**
83105 * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
83106 diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
83107 index 387fa7d..3fcde6b 100644
83108 --- a/include/linux/sysrq.h
83109 +++ b/include/linux/sysrq.h
83110 @@ -16,6 +16,7 @@
83111
83112 #include <linux/errno.h>
83113 #include <linux/types.h>
83114 +#include <linux/compiler.h>
83115
83116 /* Possible values of bitmask for enabling sysrq functions */
83117 /* 0x0001 is reserved for enable everything */
83118 @@ -33,7 +34,7 @@ struct sysrq_key_op {
83119 char *help_msg;
83120 char *action_msg;
83121 int enable_mask;
83122 -};
83123 +} __do_const;
83124
83125 #ifdef CONFIG_MAGIC_SYSRQ
83126
83127 diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
83128 index fddbe20..a0e76ab 100644
83129 --- a/include/linux/thread_info.h
83130 +++ b/include/linux/thread_info.h
83131 @@ -161,6 +161,13 @@ static inline bool test_and_clear_restore_sigmask(void)
83132 #error "no set_restore_sigmask() provided and default one won't work"
83133 #endif
83134
83135 +extern void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size);
83136 +
83137 +static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
83138 +{
83139 + __check_object_size(ptr, n, to_user, __builtin_constant_p(n));
83140 +}
83141 +
83142 #endif /* __KERNEL__ */
83143
83144 #endif /* _LINUX_THREAD_INFO_H */
83145 diff --git a/include/linux/tty.h b/include/linux/tty.h
83146 index 1c3316a..ae83b9f 100644
83147 --- a/include/linux/tty.h
83148 +++ b/include/linux/tty.h
83149 @@ -202,7 +202,7 @@ struct tty_port {
83150 const struct tty_port_operations *ops; /* Port operations */
83151 spinlock_t lock; /* Lock protecting tty field */
83152 int blocked_open; /* Waiting to open */
83153 - int count; /* Usage count */
83154 + atomic_t count; /* Usage count */
83155 wait_queue_head_t open_wait; /* Open waiters */
83156 wait_queue_head_t close_wait; /* Close waiters */
83157 wait_queue_head_t delta_msr_wait; /* Modem status change */
83158 @@ -284,7 +284,7 @@ struct tty_struct {
83159 /* If the tty has a pending do_SAK, queue it here - akpm */
83160 struct work_struct SAK_work;
83161 struct tty_port *port;
83162 -};
83163 +} __randomize_layout;
83164
83165 /* Each of a tty's open files has private_data pointing to tty_file_private */
83166 struct tty_file_private {
83167 @@ -550,7 +550,7 @@ extern int tty_port_open(struct tty_port *port,
83168 struct tty_struct *tty, struct file *filp);
83169 static inline int tty_port_users(struct tty_port *port)
83170 {
83171 - return port->count + port->blocked_open;
83172 + return atomic_read(&port->count) + port->blocked_open;
83173 }
83174
83175 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
83176 diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
83177 index 756a609..89db85e 100644
83178 --- a/include/linux/tty_driver.h
83179 +++ b/include/linux/tty_driver.h
83180 @@ -285,7 +285,7 @@ struct tty_operations {
83181 void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
83182 #endif
83183 const struct file_operations *proc_fops;
83184 -};
83185 +} __do_const __randomize_layout;
83186
83187 struct tty_driver {
83188 int magic; /* magic number for this structure */
83189 @@ -319,7 +319,7 @@ struct tty_driver {
83190
83191 const struct tty_operations *ops;
83192 struct list_head tty_drivers;
83193 -};
83194 +} __randomize_layout;
83195
83196 extern struct list_head tty_drivers;
83197
83198 diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
83199 index add26da..22c00bef 100644
83200 --- a/include/linux/tty_ldisc.h
83201 +++ b/include/linux/tty_ldisc.h
83202 @@ -212,7 +212,7 @@ struct tty_ldisc_ops {
83203
83204 struct module *owner;
83205
83206 - int refcount;
83207 + atomic_t refcount;
83208 };
83209
83210 struct tty_ldisc {
83211 diff --git a/include/linux/types.h b/include/linux/types.h
83212 index 4d118ba..c3ee9bf 100644
83213 --- a/include/linux/types.h
83214 +++ b/include/linux/types.h
83215 @@ -176,10 +176,26 @@ typedef struct {
83216 int counter;
83217 } atomic_t;
83218
83219 +#ifdef CONFIG_PAX_REFCOUNT
83220 +typedef struct {
83221 + int counter;
83222 +} atomic_unchecked_t;
83223 +#else
83224 +typedef atomic_t atomic_unchecked_t;
83225 +#endif
83226 +
83227 #ifdef CONFIG_64BIT
83228 typedef struct {
83229 long counter;
83230 } atomic64_t;
83231 +
83232 +#ifdef CONFIG_PAX_REFCOUNT
83233 +typedef struct {
83234 + long counter;
83235 +} atomic64_unchecked_t;
83236 +#else
83237 +typedef atomic64_t atomic64_unchecked_t;
83238 +#endif
83239 #endif
83240
83241 struct list_head {
83242 diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
83243 index ecd3319..8a36ded 100644
83244 --- a/include/linux/uaccess.h
83245 +++ b/include/linux/uaccess.h
83246 @@ -75,11 +75,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
83247 long ret; \
83248 mm_segment_t old_fs = get_fs(); \
83249 \
83250 - set_fs(KERNEL_DS); \
83251 pagefault_disable(); \
83252 - ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \
83253 - pagefault_enable(); \
83254 + set_fs(KERNEL_DS); \
83255 + ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \
83256 set_fs(old_fs); \
83257 + pagefault_enable(); \
83258 ret; \
83259 })
83260
83261 diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
83262 index 2d1f9b6..d7a9fce 100644
83263 --- a/include/linux/uidgid.h
83264 +++ b/include/linux/uidgid.h
83265 @@ -175,4 +175,9 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
83266
83267 #endif /* CONFIG_USER_NS */
83268
83269 +#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
83270 +#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
83271 +#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
83272 +#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
83273 +
83274 #endif /* _LINUX_UIDGID_H */
83275 diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
83276 index 99c1b4d..562e6f3 100644
83277 --- a/include/linux/unaligned/access_ok.h
83278 +++ b/include/linux/unaligned/access_ok.h
83279 @@ -4,34 +4,34 @@
83280 #include <linux/kernel.h>
83281 #include <asm/byteorder.h>
83282
83283 -static inline u16 get_unaligned_le16(const void *p)
83284 +static inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
83285 {
83286 - return le16_to_cpup((__le16 *)p);
83287 + return le16_to_cpup((const __le16 *)p);
83288 }
83289
83290 -static inline u32 get_unaligned_le32(const void *p)
83291 +static inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
83292 {
83293 - return le32_to_cpup((__le32 *)p);
83294 + return le32_to_cpup((const __le32 *)p);
83295 }
83296
83297 -static inline u64 get_unaligned_le64(const void *p)
83298 +static inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
83299 {
83300 - return le64_to_cpup((__le64 *)p);
83301 + return le64_to_cpup((const __le64 *)p);
83302 }
83303
83304 -static inline u16 get_unaligned_be16(const void *p)
83305 +static inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
83306 {
83307 - return be16_to_cpup((__be16 *)p);
83308 + return be16_to_cpup((const __be16 *)p);
83309 }
83310
83311 -static inline u32 get_unaligned_be32(const void *p)
83312 +static inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
83313 {
83314 - return be32_to_cpup((__be32 *)p);
83315 + return be32_to_cpup((const __be32 *)p);
83316 }
83317
83318 -static inline u64 get_unaligned_be64(const void *p)
83319 +static inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
83320 {
83321 - return be64_to_cpup((__be64 *)p);
83322 + return be64_to_cpup((const __be64 *)p);
83323 }
83324
83325 static inline void put_unaligned_le16(u16 val, void *p)
83326 diff --git a/include/linux/usb.h b/include/linux/usb.h
83327 index 6b7ec37..4428419 100644
83328 --- a/include/linux/usb.h
83329 +++ b/include/linux/usb.h
83330 @@ -569,7 +569,7 @@ struct usb_device {
83331 int maxchild;
83332
83333 u32 quirks;
83334 - atomic_t urbnum;
83335 + atomic_unchecked_t urbnum;
83336
83337 unsigned long active_duration;
83338
83339 @@ -1653,7 +1653,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
83340
83341 extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
83342 __u8 request, __u8 requesttype, __u16 value, __u16 index,
83343 - void *data, __u16 size, int timeout);
83344 + void *data, __u16 size, int timeout) __intentional_overflow(-1);
83345 extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
83346 void *data, int len, int *actual_length, int timeout);
83347 extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
83348 diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
83349 index e452ba6..78f8e80 100644
83350 --- a/include/linux/usb/renesas_usbhs.h
83351 +++ b/include/linux/usb/renesas_usbhs.h
83352 @@ -39,7 +39,7 @@ enum {
83353 */
83354 struct renesas_usbhs_driver_callback {
83355 int (*notify_hotplug)(struct platform_device *pdev);
83356 -};
83357 +} __no_const;
83358
83359 /*
83360 * callback functions for platform
83361 diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
83362 index 4836ba3..603f6ee 100644
83363 --- a/include/linux/user_namespace.h
83364 +++ b/include/linux/user_namespace.h
83365 @@ -33,7 +33,7 @@ struct user_namespace {
83366 struct key *persistent_keyring_register;
83367 struct rw_semaphore persistent_keyring_register_sem;
83368 #endif
83369 -};
83370 +} __randomize_layout;
83371
83372 extern struct user_namespace init_user_ns;
83373
83374 diff --git a/include/linux/utsname.h b/include/linux/utsname.h
83375 index 239e277..22a5cf5 100644
83376 --- a/include/linux/utsname.h
83377 +++ b/include/linux/utsname.h
83378 @@ -24,7 +24,7 @@ struct uts_namespace {
83379 struct new_utsname name;
83380 struct user_namespace *user_ns;
83381 unsigned int proc_inum;
83382 -};
83383 +} __randomize_layout;
83384 extern struct uts_namespace init_uts_ns;
83385
83386 #ifdef CONFIG_UTS_NS
83387 diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
83388 index 6f8fbcf..4efc177 100644
83389 --- a/include/linux/vermagic.h
83390 +++ b/include/linux/vermagic.h
83391 @@ -25,9 +25,42 @@
83392 #define MODULE_ARCH_VERMAGIC ""
83393 #endif
83394
83395 +#ifdef CONFIG_PAX_REFCOUNT
83396 +#define MODULE_PAX_REFCOUNT "REFCOUNT "
83397 +#else
83398 +#define MODULE_PAX_REFCOUNT ""
83399 +#endif
83400 +
83401 +#ifdef CONSTIFY_PLUGIN
83402 +#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
83403 +#else
83404 +#define MODULE_CONSTIFY_PLUGIN ""
83405 +#endif
83406 +
83407 +#ifdef STACKLEAK_PLUGIN
83408 +#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
83409 +#else
83410 +#define MODULE_STACKLEAK_PLUGIN ""
83411 +#endif
83412 +
83413 +#ifdef RANDSTRUCT_PLUGIN
83414 +#include <generated/randomize_layout_hash.h>
83415 +#define MODULE_RANDSTRUCT_PLUGIN "RANDSTRUCT_PLUGIN_" RANDSTRUCT_HASHED_SEED
83416 +#else
83417 +#define MODULE_RANDSTRUCT_PLUGIN
83418 +#endif
83419 +
83420 +#ifdef CONFIG_GRKERNSEC
83421 +#define MODULE_GRSEC "GRSEC "
83422 +#else
83423 +#define MODULE_GRSEC ""
83424 +#endif
83425 +
83426 #define VERMAGIC_STRING \
83427 UTS_RELEASE " " \
83428 MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
83429 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
83430 - MODULE_ARCH_VERMAGIC
83431 + MODULE_ARCH_VERMAGIC \
83432 + MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
83433 + MODULE_GRSEC MODULE_RANDSTRUCT_PLUGIN
83434
83435 diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
83436 index 502073a..a7de024 100644
83437 --- a/include/linux/vga_switcheroo.h
83438 +++ b/include/linux/vga_switcheroo.h
83439 @@ -63,8 +63,8 @@ int vga_switcheroo_get_client_state(struct pci_dev *dev);
83440
83441 void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic);
83442
83443 -int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain);
83444 -int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain);
83445 +int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain);
83446 +int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain);
83447 #else
83448
83449 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
83450 @@ -81,8 +81,8 @@ static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return
83451
83452 static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}
83453
83454 -static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
83455 -static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
83456 +static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
83457 +static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
83458
83459 #endif
83460 #endif /* _LINUX_VGA_SWITCHEROO_H_ */
83461 diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
83462 index 4b8a891..e9a2863 100644
83463 --- a/include/linux/vmalloc.h
83464 +++ b/include/linux/vmalloc.h
83465 @@ -16,6 +16,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
83466 #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
83467 #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
83468 #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
83469 +
83470 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
83471 +#define VM_KERNEXEC 0x00000040 /* allocate from executable kernel memory range */
83472 +#endif
83473 +
83474 /* bits [20..32] reserved for arch specific ioremap internals */
83475
83476 /*
83477 @@ -82,6 +87,10 @@ extern void *vmap(struct page **pages, unsigned int count,
83478 unsigned long flags, pgprot_t prot);
83479 extern void vunmap(const void *addr);
83480
83481 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
83482 +extern void unmap_process_stacks(struct task_struct *task);
83483 +#endif
83484 +
83485 extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
83486 unsigned long uaddr, void *kaddr,
83487 unsigned long size);
83488 @@ -142,7 +151,7 @@ extern void free_vm_area(struct vm_struct *area);
83489
83490 /* for /dev/kmem */
83491 extern long vread(char *buf, char *addr, unsigned long count);
83492 -extern long vwrite(char *buf, char *addr, unsigned long count);
83493 +extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
83494
83495 /*
83496 * Internals. Dont't use..
83497 diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
83498 index 45c9cd1..20bd0bf 100644
83499 --- a/include/linux/vmstat.h
83500 +++ b/include/linux/vmstat.h
83501 @@ -102,18 +102,18 @@ static inline void vm_events_fold_cpu(int cpu)
83502 /*
83503 * Zone based page accounting with per cpu differentials.
83504 */
83505 -extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
83506 +extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
83507
83508 static inline void zone_page_state_add(long x, struct zone *zone,
83509 enum zone_stat_item item)
83510 {
83511 - atomic_long_add(x, &zone->vm_stat[item]);
83512 - atomic_long_add(x, &vm_stat[item]);
83513 + atomic_long_add_unchecked(x, &zone->vm_stat[item]);
83514 + atomic_long_add_unchecked(x, &vm_stat[item]);
83515 }
83516
83517 -static inline unsigned long global_page_state(enum zone_stat_item item)
83518 +static inline unsigned long __intentional_overflow(-1) global_page_state(enum zone_stat_item item)
83519 {
83520 - long x = atomic_long_read(&vm_stat[item]);
83521 + long x = atomic_long_read_unchecked(&vm_stat[item]);
83522 #ifdef CONFIG_SMP
83523 if (x < 0)
83524 x = 0;
83525 @@ -121,10 +121,10 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
83526 return x;
83527 }
83528
83529 -static inline unsigned long zone_page_state(struct zone *zone,
83530 +static inline unsigned long __intentional_overflow(-1) zone_page_state(struct zone *zone,
83531 enum zone_stat_item item)
83532 {
83533 - long x = atomic_long_read(&zone->vm_stat[item]);
83534 + long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
83535 #ifdef CONFIG_SMP
83536 if (x < 0)
83537 x = 0;
83538 @@ -141,7 +141,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
83539 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
83540 enum zone_stat_item item)
83541 {
83542 - long x = atomic_long_read(&zone->vm_stat[item]);
83543 + long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
83544
83545 #ifdef CONFIG_SMP
83546 int cpu;
83547 @@ -228,14 +228,14 @@ static inline void __mod_zone_page_state(struct zone *zone,
83548
83549 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
83550 {
83551 - atomic_long_inc(&zone->vm_stat[item]);
83552 - atomic_long_inc(&vm_stat[item]);
83553 + atomic_long_inc_unchecked(&zone->vm_stat[item]);
83554 + atomic_long_inc_unchecked(&vm_stat[item]);
83555 }
83556
83557 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
83558 {
83559 - atomic_long_dec(&zone->vm_stat[item]);
83560 - atomic_long_dec(&vm_stat[item]);
83561 + atomic_long_dec_unchecked(&zone->vm_stat[item]);
83562 + atomic_long_dec_unchecked(&vm_stat[item]);
83563 }
83564
83565 static inline void __inc_zone_page_state(struct page *page,
83566 diff --git a/include/linux/xattr.h b/include/linux/xattr.h
83567 index 91b0a68..0e9adf6 100644
83568 --- a/include/linux/xattr.h
83569 +++ b/include/linux/xattr.h
83570 @@ -28,7 +28,7 @@ struct xattr_handler {
83571 size_t size, int handler_flags);
83572 int (*set)(struct dentry *dentry, const char *name, const void *buffer,
83573 size_t size, int flags, int handler_flags);
83574 -};
83575 +} __do_const;
83576
83577 struct xattr {
83578 const char *name;
83579 @@ -37,6 +37,9 @@ struct xattr {
83580 };
83581
83582 ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
83583 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
83584 +ssize_t pax_getxattr(struct dentry *, void *, size_t);
83585 +#endif
83586 ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
83587 ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
83588 int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
83589 diff --git a/include/linux/zlib.h b/include/linux/zlib.h
83590 index 9c5a6b4..09c9438 100644
83591 --- a/include/linux/zlib.h
83592 +++ b/include/linux/zlib.h
83593 @@ -31,6 +31,7 @@
83594 #define _ZLIB_H
83595
83596 #include <linux/zconf.h>
83597 +#include <linux/compiler.h>
83598
83599 /* zlib deflate based on ZLIB_VERSION "1.1.3" */
83600 /* zlib inflate based on ZLIB_VERSION "1.2.3" */
83601 @@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
83602
83603 /* basic functions */
83604
83605 -extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
83606 +extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
83607 /*
83608 Returns the number of bytes that needs to be allocated for a per-
83609 stream workspace with the specified parameters. A pointer to this
83610 diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
83611 index eec6e46..82d5641 100644
83612 --- a/include/media/v4l2-dev.h
83613 +++ b/include/media/v4l2-dev.h
83614 @@ -77,7 +77,7 @@ struct v4l2_file_operations {
83615 int (*mmap) (struct file *, struct vm_area_struct *);
83616 int (*open) (struct file *);
83617 int (*release) (struct file *);
83618 -};
83619 +} __do_const;
83620
83621 /*
83622 * Newer version of video_device, handled by videodev2.c
83623 diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
83624 index c9b1593..a572459 100644
83625 --- a/include/media/v4l2-device.h
83626 +++ b/include/media/v4l2-device.h
83627 @@ -95,7 +95,7 @@ int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4
83628 this function returns 0. If the name ends with a digit (e.g. cx18),
83629 then the name will be set to cx18-0 since cx180 looks really odd. */
83630 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
83631 - atomic_t *instance);
83632 + atomic_unchecked_t *instance);
83633
83634 /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
83635 Since the parent disappears this ensures that v4l2_dev doesn't have an
83636 diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
83637 index d9fa68f..45c88d1 100644
83638 --- a/include/net/9p/transport.h
83639 +++ b/include/net/9p/transport.h
83640 @@ -63,7 +63,7 @@ struct p9_trans_module {
83641 int (*cancelled)(struct p9_client *, struct p9_req_t *req);
83642 int (*zc_request)(struct p9_client *, struct p9_req_t *,
83643 char *, char *, int , int, int, int);
83644 -};
83645 +} __do_const;
83646
83647 void v9fs_register_trans(struct p9_trans_module *m);
83648 void v9fs_unregister_trans(struct p9_trans_module *m);
83649 diff --git a/include/net/af_unix.h b/include/net/af_unix.h
83650 index a175ba4..196eb82 100644
83651 --- a/include/net/af_unix.h
83652 +++ b/include/net/af_unix.h
83653 @@ -36,7 +36,7 @@ struct unix_skb_parms {
83654 u32 secid; /* Security ID */
83655 #endif
83656 u32 consumed;
83657 -};
83658 +} __randomize_layout;
83659
83660 #define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb))
83661 #define UNIXSID(skb) (&UNIXCB((skb)).secid)
83662 diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
83663 index 4abdcb2..945c5cc 100644
83664 --- a/include/net/bluetooth/l2cap.h
83665 +++ b/include/net/bluetooth/l2cap.h
83666 @@ -601,7 +601,7 @@ struct l2cap_ops {
83667 long (*get_sndtimeo) (struct l2cap_chan *chan);
83668 struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
83669 unsigned long len, int nb);
83670 -};
83671 +} __do_const;
83672
83673 struct l2cap_conn {
83674 struct hci_conn *hcon;
83675 diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
83676 index f2ae33d..c457cf0 100644
83677 --- a/include/net/caif/cfctrl.h
83678 +++ b/include/net/caif/cfctrl.h
83679 @@ -52,7 +52,7 @@ struct cfctrl_rsp {
83680 void (*radioset_rsp)(void);
83681 void (*reject_rsp)(struct cflayer *layer, u8 linkid,
83682 struct cflayer *client_layer);
83683 -};
83684 +} __no_const;
83685
83686 /* Link Setup Parameters for CAIF-Links. */
83687 struct cfctrl_link_param {
83688 @@ -101,8 +101,8 @@ struct cfctrl_request_info {
83689 struct cfctrl {
83690 struct cfsrvl serv;
83691 struct cfctrl_rsp res;
83692 - atomic_t req_seq_no;
83693 - atomic_t rsp_seq_no;
83694 + atomic_unchecked_t req_seq_no;
83695 + atomic_unchecked_t rsp_seq_no;
83696 struct list_head list;
83697 /* Protects from simultaneous access to first_req list */
83698 spinlock_t info_list_lock;
83699 diff --git a/include/net/flow.h b/include/net/flow.h
83700 index 8109a15..504466d 100644
83701 --- a/include/net/flow.h
83702 +++ b/include/net/flow.h
83703 @@ -231,6 +231,6 @@ void flow_cache_fini(struct net *net);
83704
83705 void flow_cache_flush(struct net *net);
83706 void flow_cache_flush_deferred(struct net *net);
83707 -extern atomic_t flow_cache_genid;
83708 +extern atomic_unchecked_t flow_cache_genid;
83709
83710 #endif
83711 diff --git a/include/net/genetlink.h b/include/net/genetlink.h
83712 index 93695f0..766d71c 100644
83713 --- a/include/net/genetlink.h
83714 +++ b/include/net/genetlink.h
83715 @@ -120,7 +120,7 @@ struct genl_ops {
83716 u8 cmd;
83717 u8 internal_flags;
83718 u8 flags;
83719 -};
83720 +} __do_const;
83721
83722 int __genl_register_family(struct genl_family *family);
83723
83724 diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
83725 index 734d9b5..48a9a4b 100644
83726 --- a/include/net/gro_cells.h
83727 +++ b/include/net/gro_cells.h
83728 @@ -29,7 +29,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
83729 cell += skb_get_rx_queue(skb) & gcells->gro_cells_mask;
83730
83731 if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
83732 - atomic_long_inc(&dev->rx_dropped);
83733 + atomic_long_inc_unchecked(&dev->rx_dropped);
83734 kfree_skb(skb);
83735 return;
83736 }
83737 diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
83738 index 7a43138..bc76865 100644
83739 --- a/include/net/inet_connection_sock.h
83740 +++ b/include/net/inet_connection_sock.h
83741 @@ -62,7 +62,7 @@ struct inet_connection_sock_af_ops {
83742 void (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
83743 int (*bind_conflict)(const struct sock *sk,
83744 const struct inet_bind_bucket *tb, bool relax);
83745 -};
83746 +} __do_const;
83747
83748 /** inet_connection_sock - INET connection oriented sock
83749 *
83750 diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
83751 index 058271b..1a44af7 100644
83752 --- a/include/net/inetpeer.h
83753 +++ b/include/net/inetpeer.h
83754 @@ -47,8 +47,8 @@ struct inet_peer {
83755 */
83756 union {
83757 struct {
83758 - atomic_t rid; /* Frag reception counter */
83759 - atomic_t ip_id_count; /* IP ID for the next packet */
83760 + atomic_unchecked_t rid; /* Frag reception counter */
83761 + atomic_unchecked_t ip_id_count; /* IP ID for the next packet */
83762 };
83763 struct rcu_head rcu;
83764 struct inet_peer *gc_next;
83765 @@ -179,7 +179,7 @@ static inline int inet_getid(struct inet_peer *p, int more)
83766 {
83767 more++;
83768 inet_peer_refcheck(p);
83769 - return atomic_add_return(more, &p->ip_id_count) - more;
83770 + return atomic_add_return_unchecked(more, &p->ip_id_count) - more;
83771 }
83772
83773 #endif /* _NET_INETPEER_H */
83774 diff --git a/include/net/ip.h b/include/net/ip.h
83775 index 3ec2b0f..72435b6 100644
83776 --- a/include/net/ip.h
83777 +++ b/include/net/ip.h
83778 @@ -220,7 +220,7 @@ static inline void snmp_mib_free(void __percpu *ptr[SNMP_ARRAY_SZ])
83779
83780 void inet_get_local_port_range(struct net *net, int *low, int *high);
83781
83782 -extern unsigned long *sysctl_local_reserved_ports;
83783 +extern unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
83784 static inline int inet_is_reserved_local_port(int port)
83785 {
83786 return test_bit(port, sysctl_local_reserved_ports);
83787 diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
83788 index 9922093..a1755d6 100644
83789 --- a/include/net/ip_fib.h
83790 +++ b/include/net/ip_fib.h
83791 @@ -169,7 +169,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
83792
83793 #define FIB_RES_SADDR(net, res) \
83794 ((FIB_RES_NH(res).nh_saddr_genid == \
83795 - atomic_read(&(net)->ipv4.dev_addr_genid)) ? \
83796 + atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \
83797 FIB_RES_NH(res).nh_saddr : \
83798 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
83799 #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
83800 diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
83801 index 5679d92..2e7a690 100644
83802 --- a/include/net/ip_vs.h
83803 +++ b/include/net/ip_vs.h
83804 @@ -558,7 +558,7 @@ struct ip_vs_conn {
83805 struct ip_vs_conn *control; /* Master control connection */
83806 atomic_t n_control; /* Number of controlled ones */
83807 struct ip_vs_dest *dest; /* real server */
83808 - atomic_t in_pkts; /* incoming packet counter */
83809 + atomic_unchecked_t in_pkts; /* incoming packet counter */
83810
83811 /* packet transmitter for different forwarding methods. If it
83812 mangles the packet, it must return NF_DROP or better NF_STOLEN,
83813 @@ -705,7 +705,7 @@ struct ip_vs_dest {
83814 __be16 port; /* port number of the server */
83815 union nf_inet_addr addr; /* IP address of the server */
83816 volatile unsigned int flags; /* dest status flags */
83817 - atomic_t conn_flags; /* flags to copy to conn */
83818 + atomic_unchecked_t conn_flags; /* flags to copy to conn */
83819 atomic_t weight; /* server weight */
83820
83821 atomic_t refcnt; /* reference counter */
83822 @@ -960,11 +960,11 @@ struct netns_ipvs {
83823 /* ip_vs_lblc */
83824 int sysctl_lblc_expiration;
83825 struct ctl_table_header *lblc_ctl_header;
83826 - struct ctl_table *lblc_ctl_table;
83827 + ctl_table_no_const *lblc_ctl_table;
83828 /* ip_vs_lblcr */
83829 int sysctl_lblcr_expiration;
83830 struct ctl_table_header *lblcr_ctl_header;
83831 - struct ctl_table *lblcr_ctl_table;
83832 + ctl_table_no_const *lblcr_ctl_table;
83833 /* ip_vs_est */
83834 struct list_head est_list; /* estimator list */
83835 spinlock_t est_lock;
83836 diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
83837 index 8d4f588..2e37ad2 100644
83838 --- a/include/net/irda/ircomm_tty.h
83839 +++ b/include/net/irda/ircomm_tty.h
83840 @@ -33,6 +33,7 @@
83841 #include <linux/termios.h>
83842 #include <linux/timer.h>
83843 #include <linux/tty.h> /* struct tty_struct */
83844 +#include <asm/local.h>
83845
83846 #include <net/irda/irias_object.h>
83847 #include <net/irda/ircomm_core.h>
83848 diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
83849 index 714cc9a..ea05f3e 100644
83850 --- a/include/net/iucv/af_iucv.h
83851 +++ b/include/net/iucv/af_iucv.h
83852 @@ -149,7 +149,7 @@ struct iucv_skb_cb {
83853 struct iucv_sock_list {
83854 struct hlist_head head;
83855 rwlock_t lock;
83856 - atomic_t autobind_name;
83857 + atomic_unchecked_t autobind_name;
83858 };
83859
83860 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
83861 diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
83862 index f3be818..bf46196 100644
83863 --- a/include/net/llc_c_ac.h
83864 +++ b/include/net/llc_c_ac.h
83865 @@ -87,7 +87,7 @@
83866 #define LLC_CONN_AC_STOP_SENDACK_TMR 70
83867 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING 71
83868
83869 -typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
83870 +typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
83871
83872 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
83873 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
83874 diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
83875 index 3948cf1..83b28c4 100644
83876 --- a/include/net/llc_c_ev.h
83877 +++ b/include/net/llc_c_ev.h
83878 @@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
83879 return (struct llc_conn_state_ev *)skb->cb;
83880 }
83881
83882 -typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
83883 -typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
83884 +typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
83885 +typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
83886
83887 int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
83888 int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
83889 diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
83890 index 0e79cfb..f46db31 100644
83891 --- a/include/net/llc_c_st.h
83892 +++ b/include/net/llc_c_st.h
83893 @@ -37,7 +37,7 @@ struct llc_conn_state_trans {
83894 u8 next_state;
83895 llc_conn_ev_qfyr_t *ev_qualifiers;
83896 llc_conn_action_t *ev_actions;
83897 -};
83898 +} __do_const;
83899
83900 struct llc_conn_state {
83901 u8 current_state;
83902 diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
83903 index a61b98c..aade1eb 100644
83904 --- a/include/net/llc_s_ac.h
83905 +++ b/include/net/llc_s_ac.h
83906 @@ -23,7 +23,7 @@
83907 #define SAP_ACT_TEST_IND 9
83908
83909 /* All action functions must look like this */
83910 -typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
83911 +typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
83912
83913 int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
83914 int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
83915 diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
83916 index 567c681..cd73ac02 100644
83917 --- a/include/net/llc_s_st.h
83918 +++ b/include/net/llc_s_st.h
83919 @@ -20,7 +20,7 @@ struct llc_sap_state_trans {
83920 llc_sap_ev_t ev;
83921 u8 next_state;
83922 llc_sap_action_t *ev_actions;
83923 -};
83924 +} __do_const;
83925
83926 struct llc_sap_state {
83927 u8 curr_state;
83928 diff --git a/include/net/mac80211.h b/include/net/mac80211.h
83929 index 8248e39..7610eec 100644
83930 --- a/include/net/mac80211.h
83931 +++ b/include/net/mac80211.h
83932 @@ -4467,7 +4467,7 @@ struct rate_control_ops {
83933 void (*add_sta_debugfs)(void *priv, void *priv_sta,
83934 struct dentry *dir);
83935 void (*remove_sta_debugfs)(void *priv, void *priv_sta);
83936 -};
83937 +} __do_const;
83938
83939 static inline int rate_supported(struct ieee80211_sta *sta,
83940 enum ieee80211_band band,
83941 diff --git a/include/net/neighbour.h b/include/net/neighbour.h
83942 index 7277caf..fd095bc 100644
83943 --- a/include/net/neighbour.h
83944 +++ b/include/net/neighbour.h
83945 @@ -163,7 +163,7 @@ struct neigh_ops {
83946 void (*error_report)(struct neighbour *, struct sk_buff *);
83947 int (*output)(struct neighbour *, struct sk_buff *);
83948 int (*connected_output)(struct neighbour *, struct sk_buff *);
83949 -};
83950 +} __do_const;
83951
83952 struct pneigh_entry {
83953 struct pneigh_entry *next;
83954 @@ -203,7 +203,6 @@ struct neigh_table {
83955 void (*proxy_redo)(struct sk_buff *skb);
83956 char *id;
83957 struct neigh_parms parms;
83958 - /* HACK. gc_* should follow parms without a gap! */
83959 int gc_interval;
83960 int gc_thresh1;
83961 int gc_thresh2;
83962 @@ -218,7 +217,7 @@ struct neigh_table {
83963 struct neigh_statistics __percpu *stats;
83964 struct neigh_hash_table __rcu *nht;
83965 struct pneigh_entry **phash_buckets;
83966 -};
83967 +} __randomize_layout;
83968
83969 static inline int neigh_parms_family(struct neigh_parms *p)
83970 {
83971 diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
83972 index 5f9eb26..85699c4 100644
83973 --- a/include/net/net_namespace.h
83974 +++ b/include/net/net_namespace.h
83975 @@ -129,8 +129,8 @@ struct net {
83976 struct netns_ipvs *ipvs;
83977 #endif
83978 struct sock *diag_nlsk;
83979 - atomic_t fnhe_genid;
83980 -};
83981 + atomic_unchecked_t fnhe_genid;
83982 +} __randomize_layout;
83983
83984 #include <linux/seq_file_net.h>
83985
83986 @@ -286,7 +286,11 @@ static inline struct net *read_pnet(struct net * const *pnet)
83987 #define __net_init __init
83988 #define __net_exit __exit_refok
83989 #define __net_initdata __initdata
83990 +#ifdef CONSTIFY_PLUGIN
83991 #define __net_initconst __initconst
83992 +#else
83993 +#define __net_initconst __initdata
83994 +#endif
83995 #endif
83996
83997 struct pernet_operations {
83998 @@ -296,7 +300,7 @@ struct pernet_operations {
83999 void (*exit_batch)(struct list_head *net_exit_list);
84000 int *id;
84001 size_t size;
84002 -};
84003 +} __do_const;
84004
84005 /*
84006 * Use these carefully. If you implement a network device and it
84007 @@ -344,23 +348,23 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
84008
84009 static inline int rt_genid_ipv4(struct net *net)
84010 {
84011 - return atomic_read(&net->ipv4.rt_genid);
84012 + return atomic_read_unchecked(&net->ipv4.rt_genid);
84013 }
84014
84015 static inline void rt_genid_bump_ipv4(struct net *net)
84016 {
84017 - atomic_inc(&net->ipv4.rt_genid);
84018 + atomic_inc_unchecked(&net->ipv4.rt_genid);
84019 }
84020
84021 #if IS_ENABLED(CONFIG_IPV6)
84022 static inline int rt_genid_ipv6(struct net *net)
84023 {
84024 - return atomic_read(&net->ipv6.rt_genid);
84025 + return atomic_read_unchecked(&net->ipv6.rt_genid);
84026 }
84027
84028 static inline void rt_genid_bump_ipv6(struct net *net)
84029 {
84030 - atomic_inc(&net->ipv6.rt_genid);
84031 + atomic_inc_unchecked(&net->ipv6.rt_genid);
84032 }
84033 #else
84034 static inline int rt_genid_ipv6(struct net *net)
84035 @@ -382,12 +386,12 @@ static inline void rt_genid_bump_all(struct net *net)
84036
84037 static inline int fnhe_genid(struct net *net)
84038 {
84039 - return atomic_read(&net->fnhe_genid);
84040 + return atomic_read_unchecked(&net->fnhe_genid);
84041 }
84042
84043 static inline void fnhe_genid_bump(struct net *net)
84044 {
84045 - atomic_inc(&net->fnhe_genid);
84046 + atomic_inc_unchecked(&net->fnhe_genid);
84047 }
84048
84049 #endif /* __NET_NET_NAMESPACE_H */
84050 diff --git a/include/net/netdma.h b/include/net/netdma.h
84051 index 8ba8ce2..99b7fff 100644
84052 --- a/include/net/netdma.h
84053 +++ b/include/net/netdma.h
84054 @@ -24,7 +24,7 @@
84055 #include <linux/dmaengine.h>
84056 #include <linux/skbuff.h>
84057
84058 -int dma_skb_copy_datagram_iovec(struct dma_chan* chan,
84059 +int __intentional_overflow(3,5) dma_skb_copy_datagram_iovec(struct dma_chan* chan,
84060 struct sk_buff *skb, int offset, struct iovec *to,
84061 size_t len, struct dma_pinned_list *pinned_list);
84062
84063 diff --git a/include/net/netlink.h b/include/net/netlink.h
84064 index 2b47eaa..6d5bcc2 100644
84065 --- a/include/net/netlink.h
84066 +++ b/include/net/netlink.h
84067 @@ -521,7 +521,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb)
84068 static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
84069 {
84070 if (mark)
84071 - skb_trim(skb, (unsigned char *) mark - skb->data);
84072 + skb_trim(skb, (const unsigned char *) mark - skb->data);
84073 }
84074
84075 /**
84076 diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
84077 index 773cce3..6a11852 100644
84078 --- a/include/net/netns/conntrack.h
84079 +++ b/include/net/netns/conntrack.h
84080 @@ -13,10 +13,10 @@ struct nf_conntrack_ecache;
84081 struct nf_proto_net {
84082 #ifdef CONFIG_SYSCTL
84083 struct ctl_table_header *ctl_table_header;
84084 - struct ctl_table *ctl_table;
84085 + ctl_table_no_const *ctl_table;
84086 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
84087 struct ctl_table_header *ctl_compat_header;
84088 - struct ctl_table *ctl_compat_table;
84089 + ctl_table_no_const *ctl_compat_table;
84090 #endif
84091 #endif
84092 unsigned int users;
84093 @@ -59,7 +59,7 @@ struct nf_ip_net {
84094 struct nf_icmp_net icmpv6;
84095 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
84096 struct ctl_table_header *ctl_table_header;
84097 - struct ctl_table *ctl_table;
84098 + ctl_table_no_const *ctl_table;
84099 #endif
84100 };
84101
84102 diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
84103 index b2704fd0..421d717 100644
84104 --- a/include/net/netns/ipv4.h
84105 +++ b/include/net/netns/ipv4.h
84106 @@ -79,7 +79,7 @@ struct netns_ipv4 {
84107
84108 struct ping_group_range ping_group_range;
84109
84110 - atomic_t dev_addr_genid;
84111 + atomic_unchecked_t dev_addr_genid;
84112
84113 #ifdef CONFIG_IP_MROUTE
84114 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
84115 @@ -89,6 +89,6 @@ struct netns_ipv4 {
84116 struct fib_rules_ops *mr_rules_ops;
84117 #endif
84118 #endif
84119 - atomic_t rt_genid;
84120 + atomic_unchecked_t rt_genid;
84121 };
84122 #endif
84123 diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
84124 index 21edaf1..4c5faae 100644
84125 --- a/include/net/netns/ipv6.h
84126 +++ b/include/net/netns/ipv6.h
84127 @@ -73,8 +73,8 @@ struct netns_ipv6 {
84128 struct fib_rules_ops *mr6_rules_ops;
84129 #endif
84130 #endif
84131 - atomic_t dev_addr_genid;
84132 - atomic_t rt_genid;
84133 + atomic_unchecked_t dev_addr_genid;
84134 + atomic_unchecked_t rt_genid;
84135 };
84136
84137 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
84138 diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
84139 index 3492434..209f58c 100644
84140 --- a/include/net/netns/xfrm.h
84141 +++ b/include/net/netns/xfrm.h
84142 @@ -64,7 +64,7 @@ struct netns_xfrm {
84143
84144 /* flow cache part */
84145 struct flow_cache flow_cache_global;
84146 - atomic_t flow_cache_genid;
84147 + atomic_unchecked_t flow_cache_genid;
84148 struct list_head flow_cache_gc_list;
84149 spinlock_t flow_cache_gc_lock;
84150 struct work_struct flow_cache_gc_work;
84151 diff --git a/include/net/ping.h b/include/net/ping.h
84152 index 026479b..d9b2829 100644
84153 --- a/include/net/ping.h
84154 +++ b/include/net/ping.h
84155 @@ -54,7 +54,7 @@ struct ping_iter_state {
84156
84157 extern struct proto ping_prot;
84158 #if IS_ENABLED(CONFIG_IPV6)
84159 -extern struct pingv6_ops pingv6_ops;
84160 +extern struct pingv6_ops *pingv6_ops;
84161 #endif
84162
84163 struct pingfakehdr {
84164 diff --git a/include/net/protocol.h b/include/net/protocol.h
84165 index a7e986b..dc67bce 100644
84166 --- a/include/net/protocol.h
84167 +++ b/include/net/protocol.h
84168 @@ -49,7 +49,7 @@ struct net_protocol {
84169 * socket lookup?
84170 */
84171 icmp_strict_tag_validation:1;
84172 -};
84173 +} __do_const;
84174
84175 #if IS_ENABLED(CONFIG_IPV6)
84176 struct inet6_protocol {
84177 @@ -62,7 +62,7 @@ struct inet6_protocol {
84178 u8 type, u8 code, int offset,
84179 __be32 info);
84180 unsigned int flags; /* INET6_PROTO_xxx */
84181 -};
84182 +} __do_const;
84183
84184 #define INET6_PROTO_NOPOLICY 0x1
84185 #define INET6_PROTO_FINAL 0x2
84186 diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
84187 index 72240e5..8c14bef 100644
84188 --- a/include/net/rtnetlink.h
84189 +++ b/include/net/rtnetlink.h
84190 @@ -93,7 +93,7 @@ struct rtnl_link_ops {
84191 int (*fill_slave_info)(struct sk_buff *skb,
84192 const struct net_device *dev,
84193 const struct net_device *slave_dev);
84194 -};
84195 +} __do_const;
84196
84197 int __rtnl_link_register(struct rtnl_link_ops *ops);
84198 void __rtnl_link_unregister(struct rtnl_link_ops *ops);
84199 diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
84200 index 4a5b9a3..ca27d73 100644
84201 --- a/include/net/sctp/checksum.h
84202 +++ b/include/net/sctp/checksum.h
84203 @@ -61,8 +61,8 @@ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
84204 unsigned int offset)
84205 {
84206 struct sctphdr *sh = sctp_hdr(skb);
84207 - __le32 ret, old = sh->checksum;
84208 - const struct skb_checksum_ops ops = {
84209 + __le32 ret, old = sh->checksum;
84210 + static const struct skb_checksum_ops ops = {
84211 .update = sctp_csum_update,
84212 .combine = sctp_csum_combine,
84213 };
84214 diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
84215 index 7f4eeb3..37e8fe1 100644
84216 --- a/include/net/sctp/sm.h
84217 +++ b/include/net/sctp/sm.h
84218 @@ -80,7 +80,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
84219 typedef struct {
84220 sctp_state_fn_t *fn;
84221 const char *name;
84222 -} sctp_sm_table_entry_t;
84223 +} __do_const sctp_sm_table_entry_t;
84224
84225 /* A naming convention of "sctp_sf_xxx" applies to all the state functions
84226 * currently in use.
84227 @@ -292,7 +292,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
84228 __u32 sctp_generate_tsn(const struct sctp_endpoint *);
84229
84230 /* Extern declarations for major data structures. */
84231 -extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
84232 +extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
84233
84234
84235 /* Get the size of a DATA chunk payload. */
84236 diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
84237 index 0dfcc92..7967849 100644
84238 --- a/include/net/sctp/structs.h
84239 +++ b/include/net/sctp/structs.h
84240 @@ -507,7 +507,7 @@ struct sctp_pf {
84241 struct sctp_association *asoc);
84242 void (*addr_v4map) (struct sctp_sock *, union sctp_addr *);
84243 struct sctp_af *af;
84244 -};
84245 +} __do_const;
84246
84247
84248 /* Structure to track chunk fragments that have been acked, but peer
84249 diff --git a/include/net/sock.h b/include/net/sock.h
84250 index 21569cf..dd60300 100644
84251 --- a/include/net/sock.h
84252 +++ b/include/net/sock.h
84253 @@ -348,7 +348,7 @@ struct sock {
84254 unsigned int sk_napi_id;
84255 unsigned int sk_ll_usec;
84256 #endif
84257 - atomic_t sk_drops;
84258 + atomic_unchecked_t sk_drops;
84259 int sk_rcvbuf;
84260
84261 struct sk_filter __rcu *sk_filter;
84262 @@ -1036,7 +1036,7 @@ struct proto {
84263 void (*destroy_cgroup)(struct mem_cgroup *memcg);
84264 struct cg_proto *(*proto_cgroup)(struct mem_cgroup *memcg);
84265 #endif
84266 -};
84267 +} __randomize_layout;
84268
84269 /*
84270 * Bits in struct cg_proto.flags
84271 @@ -1223,7 +1223,7 @@ static inline u64 memcg_memory_allocated_read(struct cg_proto *prot)
84272 return ret >> PAGE_SHIFT;
84273 }
84274
84275 -static inline long
84276 +static inline long __intentional_overflow(-1)
84277 sk_memory_allocated(const struct sock *sk)
84278 {
84279 struct proto *prot = sk->sk_prot;
84280 @@ -1368,7 +1368,7 @@ struct sock_iocb {
84281 struct scm_cookie *scm;
84282 struct msghdr *msg, async_msg;
84283 struct kiocb *kiocb;
84284 -};
84285 +} __randomize_layout;
84286
84287 static inline struct sock_iocb *kiocb_to_siocb(struct kiocb *iocb)
84288 {
84289 @@ -1728,8 +1728,8 @@ sk_dst_get(struct sock *sk)
84290
84291 rcu_read_lock();
84292 dst = rcu_dereference(sk->sk_dst_cache);
84293 - if (dst)
84294 - dst_hold(dst);
84295 + if (dst && !atomic_inc_not_zero(&dst->__refcnt))
84296 + dst = NULL;
84297 rcu_read_unlock();
84298 return dst;
84299 }
84300 @@ -1803,7 +1803,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
84301 }
84302
84303 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
84304 - char __user *from, char *to,
84305 + char __user *from, unsigned char *to,
84306 int copy, int offset)
84307 {
84308 if (skb->ip_summed == CHECKSUM_NONE) {
84309 @@ -2065,7 +2065,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
84310 }
84311 }
84312
84313 -struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
84314 +struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
84315
84316 /**
84317 * sk_page_frag - return an appropriate page_frag
84318 diff --git a/include/net/tcp.h b/include/net/tcp.h
84319 index 87d8774..cf214f8 100644
84320 --- a/include/net/tcp.h
84321 +++ b/include/net/tcp.h
84322 @@ -541,7 +541,7 @@ void tcp_retransmit_timer(struct sock *sk);
84323 void tcp_xmit_retransmit_queue(struct sock *);
84324 void tcp_simple_retransmit(struct sock *);
84325 int tcp_trim_head(struct sock *, struct sk_buff *, u32);
84326 -int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
84327 +int __intentional_overflow(3) tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
84328
84329 void tcp_send_probe0(struct sock *);
84330 void tcp_send_partial(struct sock *);
84331 @@ -715,8 +715,8 @@ struct tcp_skb_cb {
84332 struct inet6_skb_parm h6;
84333 #endif
84334 } header; /* For incoming frames */
84335 - __u32 seq; /* Starting sequence number */
84336 - __u32 end_seq; /* SEQ + FIN + SYN + datalen */
84337 + __u32 seq __intentional_overflow(0); /* Starting sequence number */
84338 + __u32 end_seq __intentional_overflow(0); /* SEQ + FIN + SYN + datalen */
84339 __u32 when; /* used to compute rtt's */
84340 __u8 tcp_flags; /* TCP header flags. (tcp[13]) */
84341
84342 @@ -730,7 +730,7 @@ struct tcp_skb_cb {
84343
84344 __u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */
84345 /* 1 byte hole */
84346 - __u32 ack_seq; /* Sequence number ACK'd */
84347 + __u32 ack_seq __intentional_overflow(0); /* Sequence number ACK'd */
84348 };
84349
84350 #define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
84351 diff --git a/include/net/xfrm.h b/include/net/xfrm.h
84352 index 116e9c7..3070537 100644
84353 --- a/include/net/xfrm.h
84354 +++ b/include/net/xfrm.h
84355 @@ -285,7 +285,6 @@ struct xfrm_dst;
84356 struct xfrm_policy_afinfo {
84357 unsigned short family;
84358 struct dst_ops *dst_ops;
84359 - void (*garbage_collect)(struct net *net);
84360 struct dst_entry *(*dst_lookup)(struct net *net, int tos,
84361 const xfrm_address_t *saddr,
84362 const xfrm_address_t *daddr);
84363 @@ -303,7 +302,7 @@ struct xfrm_policy_afinfo {
84364 struct net_device *dev,
84365 const struct flowi *fl);
84366 struct dst_entry *(*blackhole_route)(struct net *net, struct dst_entry *orig);
84367 -};
84368 +} __do_const;
84369
84370 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
84371 int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
84372 @@ -342,7 +341,7 @@ struct xfrm_state_afinfo {
84373 int (*transport_finish)(struct sk_buff *skb,
84374 int async);
84375 void (*local_error)(struct sk_buff *skb, u32 mtu);
84376 -};
84377 +} __do_const;
84378
84379 int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
84380 int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
84381 @@ -437,7 +436,7 @@ struct xfrm_mode {
84382 struct module *owner;
84383 unsigned int encap;
84384 int flags;
84385 -};
84386 +} __do_const;
84387
84388 /* Flags for xfrm_mode. */
84389 enum {
84390 @@ -534,7 +533,7 @@ struct xfrm_policy {
84391 struct timer_list timer;
84392
84393 struct flow_cache_object flo;
84394 - atomic_t genid;
84395 + atomic_unchecked_t genid;
84396 u32 priority;
84397 u32 index;
84398 struct xfrm_mark mark;
84399 @@ -1180,6 +1179,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
84400 }
84401
84402 void xfrm_garbage_collect(struct net *net);
84403 +void xfrm_garbage_collect_deferred(struct net *net);
84404
84405 #else
84406
84407 @@ -1218,6 +1218,9 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
84408 static inline void xfrm_garbage_collect(struct net *net)
84409 {
84410 }
84411 +static inline void xfrm_garbage_collect_deferred(struct net *net)
84412 +{
84413 +}
84414 #endif
84415
84416 static __inline__
84417 diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
84418 index 1017e0b..227aa4d 100644
84419 --- a/include/rdma/iw_cm.h
84420 +++ b/include/rdma/iw_cm.h
84421 @@ -122,7 +122,7 @@ struct iw_cm_verbs {
84422 int backlog);
84423
84424 int (*destroy_listen)(struct iw_cm_id *cm_id);
84425 -};
84426 +} __no_const;
84427
84428 /**
84429 * iw_create_cm_id - Create an IW CM identifier.
84430 diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
84431 index 52beadf..598734c 100644
84432 --- a/include/scsi/libfc.h
84433 +++ b/include/scsi/libfc.h
84434 @@ -771,6 +771,7 @@ struct libfc_function_template {
84435 */
84436 void (*disc_stop_final) (struct fc_lport *);
84437 };
84438 +typedef struct libfc_function_template __no_const libfc_function_template_no_const;
84439
84440 /**
84441 * struct fc_disc - Discovery context
84442 @@ -875,7 +876,7 @@ struct fc_lport {
84443 struct fc_vport *vport;
84444
84445 /* Operational Information */
84446 - struct libfc_function_template tt;
84447 + libfc_function_template_no_const tt;
84448 u8 link_up;
84449 u8 qfull;
84450 enum fc_lport_state state;
84451 diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
84452 index 27ab310..60dc245 100644
84453 --- a/include/scsi/scsi_device.h
84454 +++ b/include/scsi/scsi_device.h
84455 @@ -187,9 +187,9 @@ struct scsi_device {
84456 unsigned int max_device_blocked; /* what device_blocked counts down from */
84457 #define SCSI_DEFAULT_DEVICE_BLOCKED 3
84458
84459 - atomic_t iorequest_cnt;
84460 - atomic_t iodone_cnt;
84461 - atomic_t ioerr_cnt;
84462 + atomic_unchecked_t iorequest_cnt;
84463 + atomic_unchecked_t iodone_cnt;
84464 + atomic_unchecked_t ioerr_cnt;
84465
84466 struct device sdev_gendev,
84467 sdev_dev;
84468 diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
84469 index 8c79980..723f6f9 100644
84470 --- a/include/scsi/scsi_transport_fc.h
84471 +++ b/include/scsi/scsi_transport_fc.h
84472 @@ -752,7 +752,8 @@ struct fc_function_template {
84473 unsigned long show_host_system_hostname:1;
84474
84475 unsigned long disable_target_scan:1;
84476 -};
84477 +} __do_const;
84478 +typedef struct fc_function_template __no_const fc_function_template_no_const;
84479
84480
84481 /**
84482 diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
84483 index ae6c3b8..fd748ac 100644
84484 --- a/include/sound/compress_driver.h
84485 +++ b/include/sound/compress_driver.h
84486 @@ -128,7 +128,7 @@ struct snd_compr_ops {
84487 struct snd_compr_caps *caps);
84488 int (*get_codec_caps) (struct snd_compr_stream *stream,
84489 struct snd_compr_codec_caps *codec);
84490 -};
84491 +} __no_const;
84492
84493 /**
84494 * struct snd_compr: Compressed device
84495 diff --git a/include/sound/soc.h b/include/sound/soc.h
84496 index 0b83168..d67280a 100644
84497 --- a/include/sound/soc.h
84498 +++ b/include/sound/soc.h
84499 @@ -782,7 +782,7 @@ struct snd_soc_codec_driver {
84500 /* probe ordering - for components with runtime dependencies */
84501 int probe_order;
84502 int remove_order;
84503 -};
84504 +} __do_const;
84505
84506 /* SoC platform interface */
84507 struct snd_soc_platform_driver {
84508 @@ -828,7 +828,7 @@ struct snd_soc_platform_driver {
84509 unsigned int (*read)(struct snd_soc_platform *, unsigned int);
84510 int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
84511 int (*bespoke_trigger)(struct snd_pcm_substream *, int);
84512 -};
84513 +} __do_const;
84514
84515 struct snd_soc_platform {
84516 const char *name;
84517 diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
84518 index 9ec9864..e2ee1ee 100644
84519 --- a/include/target/target_core_base.h
84520 +++ b/include/target/target_core_base.h
84521 @@ -761,7 +761,7 @@ struct se_device {
84522 atomic_long_t write_bytes;
84523 /* Active commands on this virtual SE device */
84524 atomic_t simple_cmds;
84525 - atomic_t dev_ordered_id;
84526 + atomic_unchecked_t dev_ordered_id;
84527 atomic_t dev_ordered_sync;
84528 atomic_t dev_qf_count;
84529 int export_count;
84530 diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
84531 new file mode 100644
84532 index 0000000..fb634b7
84533 --- /dev/null
84534 +++ b/include/trace/events/fs.h
84535 @@ -0,0 +1,53 @@
84536 +#undef TRACE_SYSTEM
84537 +#define TRACE_SYSTEM fs
84538 +
84539 +#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
84540 +#define _TRACE_FS_H
84541 +
84542 +#include <linux/fs.h>
84543 +#include <linux/tracepoint.h>
84544 +
84545 +TRACE_EVENT(do_sys_open,
84546 +
84547 + TP_PROTO(const char *filename, int flags, int mode),
84548 +
84549 + TP_ARGS(filename, flags, mode),
84550 +
84551 + TP_STRUCT__entry(
84552 + __string( filename, filename )
84553 + __field( int, flags )
84554 + __field( int, mode )
84555 + ),
84556 +
84557 + TP_fast_assign(
84558 + __assign_str(filename, filename);
84559 + __entry->flags = flags;
84560 + __entry->mode = mode;
84561 + ),
84562 +
84563 + TP_printk("\"%s\" %x %o",
84564 + __get_str(filename), __entry->flags, __entry->mode)
84565 +);
84566 +
84567 +TRACE_EVENT(open_exec,
84568 +
84569 + TP_PROTO(const char *filename),
84570 +
84571 + TP_ARGS(filename),
84572 +
84573 + TP_STRUCT__entry(
84574 + __string( filename, filename )
84575 + ),
84576 +
84577 + TP_fast_assign(
84578 + __assign_str(filename, filename);
84579 + ),
84580 +
84581 + TP_printk("\"%s\"",
84582 + __get_str(filename))
84583 +);
84584 +
84585 +#endif /* _TRACE_FS_H */
84586 +
84587 +/* This part must be outside protection */
84588 +#include <trace/define_trace.h>
84589 diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
84590 index 1c09820..7f5ec79 100644
84591 --- a/include/trace/events/irq.h
84592 +++ b/include/trace/events/irq.h
84593 @@ -36,7 +36,7 @@ struct softirq_action;
84594 */
84595 TRACE_EVENT(irq_handler_entry,
84596
84597 - TP_PROTO(int irq, struct irqaction *action),
84598 + TP_PROTO(int irq, const struct irqaction *action),
84599
84600 TP_ARGS(irq, action),
84601
84602 @@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
84603 */
84604 TRACE_EVENT(irq_handler_exit,
84605
84606 - TP_PROTO(int irq, struct irqaction *action, int ret),
84607 + TP_PROTO(int irq, const struct irqaction *action, int ret),
84608
84609 TP_ARGS(irq, action, ret),
84610
84611 diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
84612 index 7caf44c..23c6f27 100644
84613 --- a/include/uapi/linux/a.out.h
84614 +++ b/include/uapi/linux/a.out.h
84615 @@ -39,6 +39,14 @@ enum machine_type {
84616 M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
84617 };
84618
84619 +/* Constants for the N_FLAGS field */
84620 +#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
84621 +#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
84622 +#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
84623 +#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
84624 +/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
84625 +#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
84626 +
84627 #if !defined (N_MAGIC)
84628 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
84629 #endif
84630 diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
84631 index 22b6ad3..aeba37e 100644
84632 --- a/include/uapi/linux/bcache.h
84633 +++ b/include/uapi/linux/bcache.h
84634 @@ -5,6 +5,7 @@
84635 * Bcache on disk data structures
84636 */
84637
84638 +#include <linux/compiler.h>
84639 #include <asm/types.h>
84640
84641 #define BITMASK(name, type, field, offset, size) \
84642 @@ -20,8 +21,8 @@ static inline void SET_##name(type *k, __u64 v) \
84643 /* Btree keys - all units are in sectors */
84644
84645 struct bkey {
84646 - __u64 high;
84647 - __u64 low;
84648 + __u64 high __intentional_overflow(-1);
84649 + __u64 low __intentional_overflow(-1);
84650 __u64 ptr[];
84651 };
84652
84653 diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
84654 index d876736..ccce5c0 100644
84655 --- a/include/uapi/linux/byteorder/little_endian.h
84656 +++ b/include/uapi/linux/byteorder/little_endian.h
84657 @@ -42,51 +42,51 @@
84658
84659 static inline __le64 __cpu_to_le64p(const __u64 *p)
84660 {
84661 - return (__force __le64)*p;
84662 + return (__force const __le64)*p;
84663 }
84664 -static inline __u64 __le64_to_cpup(const __le64 *p)
84665 +static inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
84666 {
84667 - return (__force __u64)*p;
84668 + return (__force const __u64)*p;
84669 }
84670 static inline __le32 __cpu_to_le32p(const __u32 *p)
84671 {
84672 - return (__force __le32)*p;
84673 + return (__force const __le32)*p;
84674 }
84675 static inline __u32 __le32_to_cpup(const __le32 *p)
84676 {
84677 - return (__force __u32)*p;
84678 + return (__force const __u32)*p;
84679 }
84680 static inline __le16 __cpu_to_le16p(const __u16 *p)
84681 {
84682 - return (__force __le16)*p;
84683 + return (__force const __le16)*p;
84684 }
84685 static inline __u16 __le16_to_cpup(const __le16 *p)
84686 {
84687 - return (__force __u16)*p;
84688 + return (__force const __u16)*p;
84689 }
84690 static inline __be64 __cpu_to_be64p(const __u64 *p)
84691 {
84692 - return (__force __be64)__swab64p(p);
84693 + return (__force const __be64)__swab64p(p);
84694 }
84695 static inline __u64 __be64_to_cpup(const __be64 *p)
84696 {
84697 - return __swab64p((__u64 *)p);
84698 + return __swab64p((const __u64 *)p);
84699 }
84700 static inline __be32 __cpu_to_be32p(const __u32 *p)
84701 {
84702 - return (__force __be32)__swab32p(p);
84703 + return (__force const __be32)__swab32p(p);
84704 }
84705 -static inline __u32 __be32_to_cpup(const __be32 *p)
84706 +static inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
84707 {
84708 - return __swab32p((__u32 *)p);
84709 + return __swab32p((const __u32 *)p);
84710 }
84711 static inline __be16 __cpu_to_be16p(const __u16 *p)
84712 {
84713 - return (__force __be16)__swab16p(p);
84714 + return (__force const __be16)__swab16p(p);
84715 }
84716 static inline __u16 __be16_to_cpup(const __be16 *p)
84717 {
84718 - return __swab16p((__u16 *)p);
84719 + return __swab16p((const __u16 *)p);
84720 }
84721 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
84722 #define __le64_to_cpus(x) do { (void)(x); } while (0)
84723 diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
84724 index ef6103b..d4e65dd 100644
84725 --- a/include/uapi/linux/elf.h
84726 +++ b/include/uapi/linux/elf.h
84727 @@ -37,6 +37,17 @@ typedef __s64 Elf64_Sxword;
84728 #define PT_GNU_EH_FRAME 0x6474e550
84729
84730 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
84731 +#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
84732 +
84733 +#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
84734 +
84735 +/* Constants for the e_flags field */
84736 +#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
84737 +#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
84738 +#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
84739 +#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
84740 +/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
84741 +#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
84742
84743 /*
84744 * Extended Numbering
84745 @@ -94,6 +105,8 @@ typedef __s64 Elf64_Sxword;
84746 #define DT_DEBUG 21
84747 #define DT_TEXTREL 22
84748 #define DT_JMPREL 23
84749 +#define DT_FLAGS 30
84750 + #define DF_TEXTREL 0x00000004
84751 #define DT_ENCODING 32
84752 #define OLD_DT_LOOS 0x60000000
84753 #define DT_LOOS 0x6000000d
84754 @@ -240,6 +253,19 @@ typedef struct elf64_hdr {
84755 #define PF_W 0x2
84756 #define PF_X 0x1
84757
84758 +#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
84759 +#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
84760 +#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
84761 +#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
84762 +#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
84763 +#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
84764 +/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
84765 +/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
84766 +#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
84767 +#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
84768 +#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
84769 +#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
84770 +
84771 typedef struct elf32_phdr{
84772 Elf32_Word p_type;
84773 Elf32_Off p_offset;
84774 @@ -332,6 +358,8 @@ typedef struct elf64_shdr {
84775 #define EI_OSABI 7
84776 #define EI_PAD 8
84777
84778 +#define EI_PAX 14
84779 +
84780 #define ELFMAG0 0x7f /* EI_MAG */
84781 #define ELFMAG1 'E'
84782 #define ELFMAG2 'L'
84783 diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
84784 index aa169c4..6a2771d 100644
84785 --- a/include/uapi/linux/personality.h
84786 +++ b/include/uapi/linux/personality.h
84787 @@ -30,6 +30,7 @@ enum {
84788 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
84789 ADDR_NO_RANDOMIZE | \
84790 ADDR_COMPAT_LAYOUT | \
84791 + ADDR_LIMIT_3GB | \
84792 MMAP_PAGE_ZERO)
84793
84794 /*
84795 diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
84796 index 7530e74..e714828 100644
84797 --- a/include/uapi/linux/screen_info.h
84798 +++ b/include/uapi/linux/screen_info.h
84799 @@ -43,7 +43,8 @@ struct screen_info {
84800 __u16 pages; /* 0x32 */
84801 __u16 vesa_attributes; /* 0x34 */
84802 __u32 capabilities; /* 0x36 */
84803 - __u8 _reserved[6]; /* 0x3a */
84804 + __u16 vesapm_size; /* 0x3a */
84805 + __u8 _reserved[4]; /* 0x3c */
84806 } __attribute__((packed));
84807
84808 #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
84809 diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
84810 index 0e011eb..82681b1 100644
84811 --- a/include/uapi/linux/swab.h
84812 +++ b/include/uapi/linux/swab.h
84813 @@ -43,7 +43,7 @@
84814 * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
84815 */
84816
84817 -static inline __attribute_const__ __u16 __fswab16(__u16 val)
84818 +static inline __intentional_overflow(-1) __attribute_const__ __u16 __fswab16(__u16 val)
84819 {
84820 #ifdef __HAVE_BUILTIN_BSWAP16__
84821 return __builtin_bswap16(val);
84822 @@ -54,7 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
84823 #endif
84824 }
84825
84826 -static inline __attribute_const__ __u32 __fswab32(__u32 val)
84827 +static inline __intentional_overflow(-1) __attribute_const__ __u32 __fswab32(__u32 val)
84828 {
84829 #ifdef __HAVE_BUILTIN_BSWAP32__
84830 return __builtin_bswap32(val);
84831 @@ -65,7 +65,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
84832 #endif
84833 }
84834
84835 -static inline __attribute_const__ __u64 __fswab64(__u64 val)
84836 +static inline __intentional_overflow(-1) __attribute_const__ __u64 __fswab64(__u64 val)
84837 {
84838 #ifdef __HAVE_BUILTIN_BSWAP64__
84839 return __builtin_bswap64(val);
84840 diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h
84841 index 6d67213..552fdd9 100644
84842 --- a/include/uapi/linux/sysctl.h
84843 +++ b/include/uapi/linux/sysctl.h
84844 @@ -155,8 +155,6 @@ enum
84845 KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
84846 };
84847
84848 -
84849 -
84850 /* CTL_VM names: */
84851 enum
84852 {
84853 diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
84854 index ea468ee..4d367a5 100644
84855 --- a/include/uapi/linux/videodev2.h
84856 +++ b/include/uapi/linux/videodev2.h
84857 @@ -1248,7 +1248,7 @@ struct v4l2_ext_control {
84858 union {
84859 __s32 value;
84860 __s64 value64;
84861 - char *string;
84862 + char __user *string;
84863 };
84864 } __attribute__ ((packed));
84865
84866 diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
84867 index c38355c..17a57bc 100644
84868 --- a/include/uapi/linux/xattr.h
84869 +++ b/include/uapi/linux/xattr.h
84870 @@ -73,5 +73,9 @@
84871 #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default"
84872 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
84873
84874 +/* User namespace */
84875 +#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
84876 +#define XATTR_PAX_FLAGS_SUFFIX "flags"
84877 +#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
84878
84879 #endif /* _UAPI_LINUX_XATTR_H */
84880 diff --git a/include/video/udlfb.h b/include/video/udlfb.h
84881 index f9466fa..f4e2b81 100644
84882 --- a/include/video/udlfb.h
84883 +++ b/include/video/udlfb.h
84884 @@ -53,10 +53,10 @@ struct dlfb_data {
84885 u32 pseudo_palette[256];
84886 int blank_mode; /*one of FB_BLANK_ */
84887 /* blit-only rendering path metrics, exposed through sysfs */
84888 - atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
84889 - atomic_t bytes_identical; /* saved effort with backbuffer comparison */
84890 - atomic_t bytes_sent; /* to usb, after compression including overhead */
84891 - atomic_t cpu_kcycles_used; /* transpired during pixel processing */
84892 + atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
84893 + atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
84894 + atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
84895 + atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
84896 };
84897
84898 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
84899 diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
84900 index 30f5362..8ed8ac9 100644
84901 --- a/include/video/uvesafb.h
84902 +++ b/include/video/uvesafb.h
84903 @@ -122,6 +122,7 @@ struct uvesafb_par {
84904 u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
84905 u8 pmi_setpal; /* PMI for palette changes */
84906 u16 *pmi_base; /* protected mode interface location */
84907 + u8 *pmi_code; /* protected mode code location */
84908 void *pmi_start;
84909 void *pmi_pal;
84910 u8 *vbe_state_orig; /*
84911 diff --git a/init/Kconfig b/init/Kconfig
84912 index 9d3585b..ad45d34 100644
84913 --- a/init/Kconfig
84914 +++ b/init/Kconfig
84915 @@ -1093,6 +1093,7 @@ endif # CGROUPS
84916
84917 config CHECKPOINT_RESTORE
84918 bool "Checkpoint/restore support" if EXPERT
84919 + depends on !GRKERNSEC
84920 default n
84921 help
84922 Enables additional kernel features in a sake of checkpoint/restore.
84923 @@ -1570,7 +1571,7 @@ config SLUB_DEBUG
84924
84925 config COMPAT_BRK
84926 bool "Disable heap randomization"
84927 - default y
84928 + default n
84929 help
84930 Randomizing heap placement makes heap exploits harder, but it
84931 also breaks ancient binaries (including anything libc5 based).
84932 @@ -1858,7 +1859,7 @@ config INIT_ALL_POSSIBLE
84933 config STOP_MACHINE
84934 bool
84935 default y
84936 - depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
84937 + depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
84938 help
84939 Need stop_machine() primitive.
84940
84941 diff --git a/init/Makefile b/init/Makefile
84942 index 7bc47ee..6da2dc7 100644
84943 --- a/init/Makefile
84944 +++ b/init/Makefile
84945 @@ -2,6 +2,9 @@
84946 # Makefile for the linux kernel.
84947 #
84948
84949 +ccflags-y := $(GCC_PLUGINS_CFLAGS)
84950 +asflags-y := $(GCC_PLUGINS_AFLAGS)
84951 +
84952 obj-y := main.o version.o mounts.o
84953 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
84954 obj-y += noinitramfs.o
84955 diff --git a/init/do_mounts.c b/init/do_mounts.c
84956 index 82f2288..ea1430a 100644
84957 --- a/init/do_mounts.c
84958 +++ b/init/do_mounts.c
84959 @@ -359,11 +359,11 @@ static void __init get_fs_names(char *page)
84960 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
84961 {
84962 struct super_block *s;
84963 - int err = sys_mount(name, "/root", fs, flags, data);
84964 + int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
84965 if (err)
84966 return err;
84967
84968 - sys_chdir("/root");
84969 + sys_chdir((const char __force_user *)"/root");
84970 s = current->fs->pwd.dentry->d_sb;
84971 ROOT_DEV = s->s_dev;
84972 printk(KERN_INFO
84973 @@ -484,18 +484,18 @@ void __init change_floppy(char *fmt, ...)
84974 va_start(args, fmt);
84975 vsprintf(buf, fmt, args);
84976 va_end(args);
84977 - fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
84978 + fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
84979 if (fd >= 0) {
84980 sys_ioctl(fd, FDEJECT, 0);
84981 sys_close(fd);
84982 }
84983 printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
84984 - fd = sys_open("/dev/console", O_RDWR, 0);
84985 + fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
84986 if (fd >= 0) {
84987 sys_ioctl(fd, TCGETS, (long)&termios);
84988 termios.c_lflag &= ~ICANON;
84989 sys_ioctl(fd, TCSETSF, (long)&termios);
84990 - sys_read(fd, &c, 1);
84991 + sys_read(fd, (char __user *)&c, 1);
84992 termios.c_lflag |= ICANON;
84993 sys_ioctl(fd, TCSETSF, (long)&termios);
84994 sys_close(fd);
84995 @@ -589,8 +589,8 @@ void __init prepare_namespace(void)
84996 mount_root();
84997 out:
84998 devtmpfs_mount("dev");
84999 - sys_mount(".", "/", NULL, MS_MOVE, NULL);
85000 - sys_chroot(".");
85001 + sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
85002 + sys_chroot((const char __force_user *)".");
85003 }
85004
85005 static bool is_tmpfs;
85006 diff --git a/init/do_mounts.h b/init/do_mounts.h
85007 index f5b978a..69dbfe8 100644
85008 --- a/init/do_mounts.h
85009 +++ b/init/do_mounts.h
85010 @@ -15,15 +15,15 @@ extern int root_mountflags;
85011
85012 static inline int create_dev(char *name, dev_t dev)
85013 {
85014 - sys_unlink(name);
85015 - return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
85016 + sys_unlink((char __force_user *)name);
85017 + return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
85018 }
85019
85020 #if BITS_PER_LONG == 32
85021 static inline u32 bstat(char *name)
85022 {
85023 struct stat64 stat;
85024 - if (sys_stat64(name, &stat) != 0)
85025 + if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
85026 return 0;
85027 if (!S_ISBLK(stat.st_mode))
85028 return 0;
85029 @@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
85030 static inline u32 bstat(char *name)
85031 {
85032 struct stat stat;
85033 - if (sys_newstat(name, &stat) != 0)
85034 + if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
85035 return 0;
85036 if (!S_ISBLK(stat.st_mode))
85037 return 0;
85038 diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
85039 index 3e0878e..8a9d7a0 100644
85040 --- a/init/do_mounts_initrd.c
85041 +++ b/init/do_mounts_initrd.c
85042 @@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
85043 {
85044 sys_unshare(CLONE_FS | CLONE_FILES);
85045 /* stdin/stdout/stderr for /linuxrc */
85046 - sys_open("/dev/console", O_RDWR, 0);
85047 + sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
85048 sys_dup(0);
85049 sys_dup(0);
85050 /* move initrd over / and chdir/chroot in initrd root */
85051 - sys_chdir("/root");
85052 - sys_mount(".", "/", NULL, MS_MOVE, NULL);
85053 - sys_chroot(".");
85054 + sys_chdir((const char __force_user *)"/root");
85055 + sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
85056 + sys_chroot((const char __force_user *)".");
85057 sys_setsid();
85058 return 0;
85059 }
85060 @@ -59,8 +59,8 @@ static void __init handle_initrd(void)
85061 create_dev("/dev/root.old", Root_RAM0);
85062 /* mount initrd on rootfs' /root */
85063 mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
85064 - sys_mkdir("/old", 0700);
85065 - sys_chdir("/old");
85066 + sys_mkdir((const char __force_user *)"/old", 0700);
85067 + sys_chdir((const char __force_user *)"/old");
85068
85069 /* try loading default modules from initrd */
85070 load_default_modules();
85071 @@ -80,31 +80,31 @@ static void __init handle_initrd(void)
85072 current->flags &= ~PF_FREEZER_SKIP;
85073
85074 /* move initrd to rootfs' /old */
85075 - sys_mount("..", ".", NULL, MS_MOVE, NULL);
85076 + sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
85077 /* switch root and cwd back to / of rootfs */
85078 - sys_chroot("..");
85079 + sys_chroot((const char __force_user *)"..");
85080
85081 if (new_decode_dev(real_root_dev) == Root_RAM0) {
85082 - sys_chdir("/old");
85083 + sys_chdir((const char __force_user *)"/old");
85084 return;
85085 }
85086
85087 - sys_chdir("/");
85088 + sys_chdir((const char __force_user *)"/");
85089 ROOT_DEV = new_decode_dev(real_root_dev);
85090 mount_root();
85091
85092 printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
85093 - error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
85094 + error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
85095 if (!error)
85096 printk("okay\n");
85097 else {
85098 - int fd = sys_open("/dev/root.old", O_RDWR, 0);
85099 + int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
85100 if (error == -ENOENT)
85101 printk("/initrd does not exist. Ignored.\n");
85102 else
85103 printk("failed\n");
85104 printk(KERN_NOTICE "Unmounting old root\n");
85105 - sys_umount("/old", MNT_DETACH);
85106 + sys_umount((char __force_user *)"/old", MNT_DETACH);
85107 printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
85108 if (fd < 0) {
85109 error = fd;
85110 @@ -127,11 +127,11 @@ int __init initrd_load(void)
85111 * mounted in the normal path.
85112 */
85113 if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
85114 - sys_unlink("/initrd.image");
85115 + sys_unlink((const char __force_user *)"/initrd.image");
85116 handle_initrd();
85117 return 1;
85118 }
85119 }
85120 - sys_unlink("/initrd.image");
85121 + sys_unlink((const char __force_user *)"/initrd.image");
85122 return 0;
85123 }
85124 diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
85125 index 8cb6db5..d729f50 100644
85126 --- a/init/do_mounts_md.c
85127 +++ b/init/do_mounts_md.c
85128 @@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
85129 partitioned ? "_d" : "", minor,
85130 md_setup_args[ent].device_names);
85131
85132 - fd = sys_open(name, 0, 0);
85133 + fd = sys_open((char __force_user *)name, 0, 0);
85134 if (fd < 0) {
85135 printk(KERN_ERR "md: open failed - cannot start "
85136 "array %s\n", name);
85137 @@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
85138 * array without it
85139 */
85140 sys_close(fd);
85141 - fd = sys_open(name, 0, 0);
85142 + fd = sys_open((char __force_user *)name, 0, 0);
85143 sys_ioctl(fd, BLKRRPART, 0);
85144 }
85145 sys_close(fd);
85146 @@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
85147
85148 wait_for_device_probe();
85149
85150 - fd = sys_open("/dev/md0", 0, 0);
85151 + fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
85152 if (fd >= 0) {
85153 sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
85154 sys_close(fd);
85155 diff --git a/init/init_task.c b/init/init_task.c
85156 index ba0a7f36..2bcf1d5 100644
85157 --- a/init/init_task.c
85158 +++ b/init/init_task.c
85159 @@ -22,5 +22,9 @@ EXPORT_SYMBOL(init_task);
85160 * Initial thread structure. Alignment of this is handled by a special
85161 * linker map entry.
85162 */
85163 +#ifdef CONFIG_X86
85164 +union thread_union init_thread_union __init_task_data;
85165 +#else
85166 union thread_union init_thread_union __init_task_data =
85167 { INIT_THREAD_INFO(init_task) };
85168 +#endif
85169 diff --git a/init/initramfs.c b/init/initramfs.c
85170 index a8497fa..35b3c90 100644
85171 --- a/init/initramfs.c
85172 +++ b/init/initramfs.c
85173 @@ -84,7 +84,7 @@ static void __init free_hash(void)
85174 }
85175 }
85176
85177 -static long __init do_utime(char *filename, time_t mtime)
85178 +static long __init do_utime(char __force_user *filename, time_t mtime)
85179 {
85180 struct timespec t[2];
85181
85182 @@ -119,7 +119,7 @@ static void __init dir_utime(void)
85183 struct dir_entry *de, *tmp;
85184 list_for_each_entry_safe(de, tmp, &dir_list, list) {
85185 list_del(&de->list);
85186 - do_utime(de->name, de->mtime);
85187 + do_utime((char __force_user *)de->name, de->mtime);
85188 kfree(de->name);
85189 kfree(de);
85190 }
85191 @@ -281,7 +281,7 @@ static int __init maybe_link(void)
85192 if (nlink >= 2) {
85193 char *old = find_link(major, minor, ino, mode, collected);
85194 if (old)
85195 - return (sys_link(old, collected) < 0) ? -1 : 1;
85196 + return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
85197 }
85198 return 0;
85199 }
85200 @@ -290,11 +290,11 @@ static void __init clean_path(char *path, umode_t mode)
85201 {
85202 struct stat st;
85203
85204 - if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
85205 + if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) {
85206 if (S_ISDIR(st.st_mode))
85207 - sys_rmdir(path);
85208 + sys_rmdir((char __force_user *)path);
85209 else
85210 - sys_unlink(path);
85211 + sys_unlink((char __force_user *)path);
85212 }
85213 }
85214
85215 @@ -315,7 +315,7 @@ static int __init do_name(void)
85216 int openflags = O_WRONLY|O_CREAT;
85217 if (ml != 1)
85218 openflags |= O_TRUNC;
85219 - wfd = sys_open(collected, openflags, mode);
85220 + wfd = sys_open((char __force_user *)collected, openflags, mode);
85221
85222 if (wfd >= 0) {
85223 sys_fchown(wfd, uid, gid);
85224 @@ -327,17 +327,17 @@ static int __init do_name(void)
85225 }
85226 }
85227 } else if (S_ISDIR(mode)) {
85228 - sys_mkdir(collected, mode);
85229 - sys_chown(collected, uid, gid);
85230 - sys_chmod(collected, mode);
85231 + sys_mkdir((char __force_user *)collected, mode);
85232 + sys_chown((char __force_user *)collected, uid, gid);
85233 + sys_chmod((char __force_user *)collected, mode);
85234 dir_add(collected, mtime);
85235 } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
85236 S_ISFIFO(mode) || S_ISSOCK(mode)) {
85237 if (maybe_link() == 0) {
85238 - sys_mknod(collected, mode, rdev);
85239 - sys_chown(collected, uid, gid);
85240 - sys_chmod(collected, mode);
85241 - do_utime(collected, mtime);
85242 + sys_mknod((char __force_user *)collected, mode, rdev);
85243 + sys_chown((char __force_user *)collected, uid, gid);
85244 + sys_chmod((char __force_user *)collected, mode);
85245 + do_utime((char __force_user *)collected, mtime);
85246 }
85247 }
85248 return 0;
85249 @@ -346,15 +346,15 @@ static int __init do_name(void)
85250 static int __init do_copy(void)
85251 {
85252 if (count >= body_len) {
85253 - sys_write(wfd, victim, body_len);
85254 + sys_write(wfd, (char __force_user *)victim, body_len);
85255 sys_close(wfd);
85256 - do_utime(vcollected, mtime);
85257 + do_utime((char __force_user *)vcollected, mtime);
85258 kfree(vcollected);
85259 eat(body_len);
85260 state = SkipIt;
85261 return 0;
85262 } else {
85263 - sys_write(wfd, victim, count);
85264 + sys_write(wfd, (char __force_user *)victim, count);
85265 body_len -= count;
85266 eat(count);
85267 return 1;
85268 @@ -365,9 +365,9 @@ static int __init do_symlink(void)
85269 {
85270 collected[N_ALIGN(name_len) + body_len] = '\0';
85271 clean_path(collected, 0);
85272 - sys_symlink(collected + N_ALIGN(name_len), collected);
85273 - sys_lchown(collected, uid, gid);
85274 - do_utime(collected, mtime);
85275 + sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
85276 + sys_lchown((char __force_user *)collected, uid, gid);
85277 + do_utime((char __force_user *)collected, mtime);
85278 state = SkipIt;
85279 next_state = Reset;
85280 return 0;
85281 diff --git a/init/main.c b/init/main.c
85282 index 48655ce..d0113e4 100644
85283 --- a/init/main.c
85284 +++ b/init/main.c
85285 @@ -97,6 +97,8 @@ extern void radix_tree_init(void);
85286 static inline void mark_rodata_ro(void) { }
85287 #endif
85288
85289 +extern void grsecurity_init(void);
85290 +
85291 /*
85292 * Debug helper: via this flag we know that we are in 'early bootup code'
85293 * where only the boot processor is running with IRQ disabled. This means
85294 @@ -158,6 +160,75 @@ static int __init set_reset_devices(char *str)
85295
85296 __setup("reset_devices", set_reset_devices);
85297
85298 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
85299 +kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
85300 +static int __init setup_grsec_proc_gid(char *str)
85301 +{
85302 + grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
85303 + return 1;
85304 +}
85305 +__setup("grsec_proc_gid=", setup_grsec_proc_gid);
85306 +#endif
85307 +
85308 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
85309 +unsigned long pax_user_shadow_base __read_only;
85310 +EXPORT_SYMBOL(pax_user_shadow_base);
85311 +extern char pax_enter_kernel_user[];
85312 +extern char pax_exit_kernel_user[];
85313 +#endif
85314 +
85315 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
85316 +static int __init setup_pax_nouderef(char *str)
85317 +{
85318 +#ifdef CONFIG_X86_32
85319 + unsigned int cpu;
85320 + struct desc_struct *gdt;
85321 +
85322 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
85323 + gdt = get_cpu_gdt_table(cpu);
85324 + gdt[GDT_ENTRY_KERNEL_DS].type = 3;
85325 + gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
85326 + gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
85327 + gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
85328 + }
85329 + loadsegment(ds, __KERNEL_DS);
85330 + loadsegment(es, __KERNEL_DS);
85331 + loadsegment(ss, __KERNEL_DS);
85332 +#else
85333 + memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
85334 + memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
85335 + clone_pgd_mask = ~(pgdval_t)0UL;
85336 + pax_user_shadow_base = 0UL;
85337 + setup_clear_cpu_cap(X86_FEATURE_PCID);
85338 + setup_clear_cpu_cap(X86_FEATURE_INVPCID);
85339 +#endif
85340 +
85341 + return 0;
85342 +}
85343 +early_param("pax_nouderef", setup_pax_nouderef);
85344 +
85345 +#ifdef CONFIG_X86_64
85346 +static int __init setup_pax_weakuderef(char *str)
85347 +{
85348 + if (clone_pgd_mask != ~(pgdval_t)0UL)
85349 + pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
85350 + return 1;
85351 +}
85352 +__setup("pax_weakuderef", setup_pax_weakuderef);
85353 +#endif
85354 +#endif
85355 +
85356 +#ifdef CONFIG_PAX_SOFTMODE
85357 +int pax_softmode;
85358 +
85359 +static int __init setup_pax_softmode(char *str)
85360 +{
85361 + get_option(&str, &pax_softmode);
85362 + return 1;
85363 +}
85364 +__setup("pax_softmode=", setup_pax_softmode);
85365 +#endif
85366 +
85367 static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
85368 const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
85369 static const char *panic_later, *panic_param;
85370 @@ -688,25 +759,24 @@ int __init_or_module do_one_initcall(initcall_t fn)
85371 {
85372 int count = preempt_count();
85373 int ret;
85374 - char msgbuf[64];
85375 + const char *msg1 = "", *msg2 = "";
85376
85377 if (initcall_debug)
85378 ret = do_one_initcall_debug(fn);
85379 else
85380 ret = fn();
85381
85382 - msgbuf[0] = 0;
85383 -
85384 if (preempt_count() != count) {
85385 - sprintf(msgbuf, "preemption imbalance ");
85386 + msg1 = " preemption imbalance";
85387 preempt_count_set(count);
85388 }
85389 if (irqs_disabled()) {
85390 - strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
85391 + msg2 = " disabled interrupts";
85392 local_irq_enable();
85393 }
85394 - WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);
85395 + WARN(*msg1 || *msg2, "initcall %pF returned with%s%s\n", fn, msg1, msg2);
85396
85397 + add_latent_entropy();
85398 return ret;
85399 }
85400
85401 @@ -813,8 +883,8 @@ static int run_init_process(const char *init_filename)
85402 {
85403 argv_init[0] = init_filename;
85404 return do_execve(getname_kernel(init_filename),
85405 - (const char __user *const __user *)argv_init,
85406 - (const char __user *const __user *)envp_init);
85407 + (const char __user *const __force_user *)argv_init,
85408 + (const char __user *const __force_user *)envp_init);
85409 }
85410
85411 static int try_to_run_init_process(const char *init_filename)
85412 @@ -831,6 +901,10 @@ static int try_to_run_init_process(const char *init_filename)
85413 return ret;
85414 }
85415
85416 +#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
85417 +extern int gr_init_ran;
85418 +#endif
85419 +
85420 static noinline void __init kernel_init_freeable(void);
85421
85422 static int __ref kernel_init(void *unused)
85423 @@ -855,6 +929,11 @@ static int __ref kernel_init(void *unused)
85424 ramdisk_execute_command, ret);
85425 }
85426
85427 +#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
85428 + /* if no initrd was used, be extra sure we enforce chroot restrictions */
85429 + gr_init_ran = 1;
85430 +#endif
85431 +
85432 /*
85433 * We try each of these until one succeeds.
85434 *
85435 @@ -910,7 +989,7 @@ static noinline void __init kernel_init_freeable(void)
85436 do_basic_setup();
85437
85438 /* Open the /dev/console on the rootfs, this should never fail */
85439 - if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
85440 + if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
85441 pr_err("Warning: unable to open an initial console.\n");
85442
85443 (void) sys_dup(0);
85444 @@ -923,11 +1002,13 @@ static noinline void __init kernel_init_freeable(void)
85445 if (!ramdisk_execute_command)
85446 ramdisk_execute_command = "/init";
85447
85448 - if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
85449 + if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
85450 ramdisk_execute_command = NULL;
85451 prepare_namespace();
85452 }
85453
85454 + grsecurity_init();
85455 +
85456 /*
85457 * Ok, we have completed the initial bootup, and
85458 * we're essentially up and running. Get rid of the
85459 diff --git a/ipc/compat.c b/ipc/compat.c
85460 index 45d035d..e4a7f99 100644
85461 --- a/ipc/compat.c
85462 +++ b/ipc/compat.c
85463 @@ -396,7 +396,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
85464 COMPAT_SHMLBA);
85465 if (err < 0)
85466 return err;
85467 - return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
85468 + return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
85469 }
85470 case SHMDT:
85471 return sys_shmdt(compat_ptr(ptr));
85472 diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
85473 index 998d31b..30c24df 100644
85474 --- a/ipc/ipc_sysctl.c
85475 +++ b/ipc/ipc_sysctl.c
85476 @@ -30,7 +30,7 @@ static void *get_ipc(ctl_table *table)
85477 static int proc_ipc_dointvec(ctl_table *table, int write,
85478 void __user *buffer, size_t *lenp, loff_t *ppos)
85479 {
85480 - struct ctl_table ipc_table;
85481 + ctl_table_no_const ipc_table;
85482
85483 memcpy(&ipc_table, table, sizeof(ipc_table));
85484 ipc_table.data = get_ipc(table);
85485 @@ -41,7 +41,7 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
85486 static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
85487 void __user *buffer, size_t *lenp, loff_t *ppos)
85488 {
85489 - struct ctl_table ipc_table;
85490 + ctl_table_no_const ipc_table;
85491
85492 memcpy(&ipc_table, table, sizeof(ipc_table));
85493 ipc_table.data = get_ipc(table);
85494 @@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
85495 static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
85496 void __user *buffer, size_t *lenp, loff_t *ppos)
85497 {
85498 - struct ctl_table ipc_table;
85499 + ctl_table_no_const ipc_table;
85500 size_t lenp_bef = *lenp;
85501 int rc;
85502
85503 @@ -88,7 +88,7 @@ static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
85504 static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
85505 void __user *buffer, size_t *lenp, loff_t *ppos)
85506 {
85507 - struct ctl_table ipc_table;
85508 + ctl_table_no_const ipc_table;
85509 memcpy(&ipc_table, table, sizeof(ipc_table));
85510 ipc_table.data = get_ipc(table);
85511
85512 @@ -122,7 +122,7 @@ static void ipc_auto_callback(int val)
85513 static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
85514 void __user *buffer, size_t *lenp, loff_t *ppos)
85515 {
85516 - struct ctl_table ipc_table;
85517 + ctl_table_no_const ipc_table;
85518 size_t lenp_bef = *lenp;
85519 int oldval;
85520 int rc;
85521 diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
85522 index 5bb8bfe..a38ec05 100644
85523 --- a/ipc/mq_sysctl.c
85524 +++ b/ipc/mq_sysctl.c
85525 @@ -25,7 +25,7 @@ static void *get_mq(ctl_table *table)
85526 static int proc_mq_dointvec(ctl_table *table, int write,
85527 void __user *buffer, size_t *lenp, loff_t *ppos)
85528 {
85529 - struct ctl_table mq_table;
85530 + ctl_table_no_const mq_table;
85531 memcpy(&mq_table, table, sizeof(mq_table));
85532 mq_table.data = get_mq(table);
85533
85534 @@ -35,7 +35,7 @@ static int proc_mq_dointvec(ctl_table *table, int write,
85535 static int proc_mq_dointvec_minmax(ctl_table *table, int write,
85536 void __user *buffer, size_t *lenp, loff_t *ppos)
85537 {
85538 - struct ctl_table mq_table;
85539 + ctl_table_no_const mq_table;
85540 memcpy(&mq_table, table, sizeof(mq_table));
85541 mq_table.data = get_mq(table);
85542
85543 diff --git a/ipc/mqueue.c b/ipc/mqueue.c
85544 index 4fcf39a..d3cc2ec 100644
85545 --- a/ipc/mqueue.c
85546 +++ b/ipc/mqueue.c
85547 @@ -278,6 +278,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
85548 mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
85549 info->attr.mq_msgsize);
85550
85551 + gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
85552 spin_lock(&mq_lock);
85553 if (u->mq_bytes + mq_bytes < u->mq_bytes ||
85554 u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
85555 diff --git a/ipc/msg.c b/ipc/msg.c
85556 index 6498531..b0ff3c8 100644
85557 --- a/ipc/msg.c
85558 +++ b/ipc/msg.c
85559 @@ -303,18 +303,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
85560 return security_msg_queue_associate(msq, msgflg);
85561 }
85562
85563 +static struct ipc_ops msg_ops = {
85564 + .getnew = newque,
85565 + .associate = msg_security,
85566 + .more_checks = NULL
85567 +};
85568 +
85569 SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
85570 {
85571 struct ipc_namespace *ns;
85572 - struct ipc_ops msg_ops;
85573 struct ipc_params msg_params;
85574
85575 ns = current->nsproxy->ipc_ns;
85576
85577 - msg_ops.getnew = newque;
85578 - msg_ops.associate = msg_security;
85579 - msg_ops.more_checks = NULL;
85580 -
85581 msg_params.key = key;
85582 msg_params.flg = msgflg;
85583
85584 diff --git a/ipc/sem.c b/ipc/sem.c
85585 index bee5554..e9af81dd 100644
85586 --- a/ipc/sem.c
85587 +++ b/ipc/sem.c
85588 @@ -561,10 +561,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
85589 return 0;
85590 }
85591
85592 +static struct ipc_ops sem_ops = {
85593 + .getnew = newary,
85594 + .associate = sem_security,
85595 + .more_checks = sem_more_checks
85596 +};
85597 +
85598 SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
85599 {
85600 struct ipc_namespace *ns;
85601 - struct ipc_ops sem_ops;
85602 struct ipc_params sem_params;
85603
85604 ns = current->nsproxy->ipc_ns;
85605 @@ -572,10 +577,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
85606 if (nsems < 0 || nsems > ns->sc_semmsl)
85607 return -EINVAL;
85608
85609 - sem_ops.getnew = newary;
85610 - sem_ops.associate = sem_security;
85611 - sem_ops.more_checks = sem_more_checks;
85612 -
85613 sem_params.key = key;
85614 sem_params.flg = semflg;
85615 sem_params.u.nsems = nsems;
85616 diff --git a/ipc/shm.c b/ipc/shm.c
85617 index 7645961..afc7f02 100644
85618 --- a/ipc/shm.c
85619 +++ b/ipc/shm.c
85620 @@ -72,6 +72,14 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
85621 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
85622 #endif
85623
85624 +#ifdef CONFIG_GRKERNSEC
85625 +extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
85626 + const time_t shm_createtime, const kuid_t cuid,
85627 + const int shmid);
85628 +extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
85629 + const time_t shm_createtime);
85630 +#endif
85631 +
85632 void shm_init_ns(struct ipc_namespace *ns)
85633 {
85634 ns->shm_ctlmax = SHMMAX;
85635 @@ -553,6 +561,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
85636 shp->shm_lprid = 0;
85637 shp->shm_atim = shp->shm_dtim = 0;
85638 shp->shm_ctim = get_seconds();
85639 +#ifdef CONFIG_GRKERNSEC
85640 + {
85641 + struct timespec timeval;
85642 + do_posix_clock_monotonic_gettime(&timeval);
85643 +
85644 + shp->shm_createtime = timeval.tv_sec;
85645 + }
85646 +#endif
85647 shp->shm_segsz = size;
85648 shp->shm_nattch = 0;
85649 shp->shm_file = file;
85650 @@ -606,18 +622,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
85651 return 0;
85652 }
85653
85654 +static struct ipc_ops shm_ops = {
85655 + .getnew = newseg,
85656 + .associate = shm_security,
85657 + .more_checks = shm_more_checks
85658 +};
85659 +
85660 SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
85661 {
85662 struct ipc_namespace *ns;
85663 - struct ipc_ops shm_ops;
85664 struct ipc_params shm_params;
85665
85666 ns = current->nsproxy->ipc_ns;
85667
85668 - shm_ops.getnew = newseg;
85669 - shm_ops.associate = shm_security;
85670 - shm_ops.more_checks = shm_more_checks;
85671 -
85672 shm_params.key = key;
85673 shm_params.flg = shmflg;
85674 shm_params.u.size = size;
85675 @@ -1088,6 +1105,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
85676 f_mode = FMODE_READ | FMODE_WRITE;
85677 }
85678 if (shmflg & SHM_EXEC) {
85679 +
85680 +#ifdef CONFIG_PAX_MPROTECT
85681 + if (current->mm->pax_flags & MF_PAX_MPROTECT)
85682 + goto out;
85683 +#endif
85684 +
85685 prot |= PROT_EXEC;
85686 acc_mode |= S_IXUGO;
85687 }
85688 @@ -1112,6 +1135,15 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
85689 if (err)
85690 goto out_unlock;
85691
85692 +#ifdef CONFIG_GRKERNSEC
85693 + if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
85694 + shp->shm_perm.cuid, shmid) ||
85695 + !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
85696 + err = -EACCES;
85697 + goto out_unlock;
85698 + }
85699 +#endif
85700 +
85701 ipc_lock_object(&shp->shm_perm);
85702
85703 /* check if shm_destroy() is tearing down shp */
85704 @@ -1124,6 +1156,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
85705 path = shp->shm_file->f_path;
85706 path_get(&path);
85707 shp->shm_nattch++;
85708 +#ifdef CONFIG_GRKERNSEC
85709 + shp->shm_lapid = current->pid;
85710 +#endif
85711 size = i_size_read(path.dentry->d_inode);
85712 ipc_unlock_object(&shp->shm_perm);
85713 rcu_read_unlock();
85714 diff --git a/ipc/util.c b/ipc/util.c
85715 index 2eb0d1e..0308564 100644
85716 --- a/ipc/util.c
85717 +++ b/ipc/util.c
85718 @@ -71,6 +71,8 @@ struct ipc_proc_iface {
85719 int (*show)(struct seq_file *, void *);
85720 };
85721
85722 +extern int gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode);
85723 +
85724 static void ipc_memory_notifier(struct work_struct *work)
85725 {
85726 ipcns_notify(IPCNS_MEMCHANGED);
85727 @@ -537,6 +539,10 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
85728 granted_mode >>= 6;
85729 else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
85730 granted_mode >>= 3;
85731 +
85732 + if (!gr_ipc_permitted(ns, ipcp, requested_mode, granted_mode))
85733 + return -1;
85734 +
85735 /* is there some bit set in requested_mode but not in granted_mode? */
85736 if ((requested_mode & ~granted_mode & 0007) &&
85737 !ns_capable(ns->user_ns, CAP_IPC_OWNER))
85738 diff --git a/kernel/acct.c b/kernel/acct.c
85739 index 8d6e145..33e0b1e 100644
85740 --- a/kernel/acct.c
85741 +++ b/kernel/acct.c
85742 @@ -556,7 +556,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
85743 */
85744 flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
85745 current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
85746 - file->f_op->write(file, (char *)&ac,
85747 + file->f_op->write(file, (char __force_user *)&ac,
85748 sizeof(acct_t), &file->f_pos);
85749 current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
85750 set_fs(fs);
85751 diff --git a/kernel/audit.c b/kernel/audit.c
85752 index 47845c5..bd9dd5b 100644
85753 --- a/kernel/audit.c
85754 +++ b/kernel/audit.c
85755 @@ -122,7 +122,7 @@ u32 audit_sig_sid = 0;
85756 3) suppressed due to audit_rate_limit
85757 4) suppressed due to audit_backlog_limit
85758 */
85759 -static atomic_t audit_lost = ATOMIC_INIT(0);
85760 +static atomic_unchecked_t audit_lost = ATOMIC_INIT(0);
85761
85762 /* The netlink socket. */
85763 static struct sock *audit_sock;
85764 @@ -256,7 +256,7 @@ void audit_log_lost(const char *message)
85765 unsigned long now;
85766 int print;
85767
85768 - atomic_inc(&audit_lost);
85769 + atomic_inc_unchecked(&audit_lost);
85770
85771 print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
85772
85773 @@ -273,7 +273,7 @@ void audit_log_lost(const char *message)
85774 if (print) {
85775 if (printk_ratelimit())
85776 pr_warn("audit_lost=%u audit_rate_limit=%u audit_backlog_limit=%u\n",
85777 - atomic_read(&audit_lost),
85778 + atomic_read_unchecked(&audit_lost),
85779 audit_rate_limit,
85780 audit_backlog_limit);
85781 audit_panic(message);
85782 @@ -808,7 +808,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
85783 s.pid = audit_pid;
85784 s.rate_limit = audit_rate_limit;
85785 s.backlog_limit = audit_backlog_limit;
85786 - s.lost = atomic_read(&audit_lost);
85787 + s.lost = atomic_read_unchecked(&audit_lost);
85788 s.backlog = skb_queue_len(&audit_skb_queue);
85789 s.version = AUDIT_VERSION_LATEST;
85790 s.backlog_wait_time = audit_backlog_wait_time;
85791 diff --git a/kernel/auditsc.c b/kernel/auditsc.c
85792 index 21eae3c..66db239 100644
85793 --- a/kernel/auditsc.c
85794 +++ b/kernel/auditsc.c
85795 @@ -2023,7 +2023,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
85796 }
85797
85798 /* global counter which is incremented every time something logs in */
85799 -static atomic_t session_id = ATOMIC_INIT(0);
85800 +static atomic_unchecked_t session_id = ATOMIC_INIT(0);
85801
85802 static int audit_set_loginuid_perm(kuid_t loginuid)
85803 {
85804 @@ -2090,7 +2090,7 @@ int audit_set_loginuid(kuid_t loginuid)
85805
85806 /* are we setting or clearing? */
85807 if (uid_valid(loginuid))
85808 - sessionid = (unsigned int)atomic_inc_return(&session_id);
85809 + sessionid = (unsigned int)atomic_inc_return_unchecked(&session_id);
85810
85811 task->sessionid = sessionid;
85812 task->loginuid = loginuid;
85813 diff --git a/kernel/capability.c b/kernel/capability.c
85814 index 24663b3..b926ae1 100644
85815 --- a/kernel/capability.c
85816 +++ b/kernel/capability.c
85817 @@ -193,6 +193,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
85818 * before modification is attempted and the application
85819 * fails.
85820 */
85821 + if (tocopy > ARRAY_SIZE(kdata))
85822 + return -EFAULT;
85823 +
85824 if (copy_to_user(dataptr, kdata, tocopy
85825 * sizeof(struct __user_cap_data_struct))) {
85826 return -EFAULT;
85827 @@ -294,10 +297,11 @@ bool has_ns_capability(struct task_struct *t,
85828 int ret;
85829
85830 rcu_read_lock();
85831 - ret = security_capable(__task_cred(t), ns, cap);
85832 + ret = security_capable(__task_cred(t), ns, cap) == 0 &&
85833 + gr_task_is_capable(t, __task_cred(t), cap);
85834 rcu_read_unlock();
85835
85836 - return (ret == 0);
85837 + return ret;
85838 }
85839
85840 /**
85841 @@ -334,10 +338,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
85842 int ret;
85843
85844 rcu_read_lock();
85845 - ret = security_capable_noaudit(__task_cred(t), ns, cap);
85846 + ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
85847 rcu_read_unlock();
85848
85849 - return (ret == 0);
85850 + return ret;
85851 }
85852
85853 /**
85854 @@ -375,7 +379,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
85855 BUG();
85856 }
85857
85858 - if (security_capable(current_cred(), ns, cap) == 0) {
85859 + if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
85860 current->flags |= PF_SUPERPRIV;
85861 return true;
85862 }
85863 @@ -383,6 +387,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
85864 }
85865 EXPORT_SYMBOL(ns_capable);
85866
85867 +bool ns_capable_nolog(struct user_namespace *ns, int cap)
85868 +{
85869 + if (unlikely(!cap_valid(cap))) {
85870 + printk(KERN_CRIT "capable_nolog() called with invalid cap=%u\n", cap);
85871 + BUG();
85872 + }
85873 +
85874 + if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
85875 + current->flags |= PF_SUPERPRIV;
85876 + return true;
85877 + }
85878 + return false;
85879 +}
85880 +EXPORT_SYMBOL(ns_capable_nolog);
85881 +
85882 /**
85883 * file_ns_capable - Determine if the file's opener had a capability in effect
85884 * @file: The file we want to check
85885 @@ -423,6 +442,12 @@ bool capable(int cap)
85886 }
85887 EXPORT_SYMBOL(capable);
85888
85889 +bool capable_nolog(int cap)
85890 +{
85891 + return ns_capable_nolog(&init_user_ns, cap);
85892 +}
85893 +EXPORT_SYMBOL(capable_nolog);
85894 +
85895 /**
85896 * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
85897 * @inode: The inode in question
85898 @@ -440,3 +465,12 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
85899 kgid_has_mapping(ns, inode->i_gid);
85900 }
85901 EXPORT_SYMBOL(capable_wrt_inode_uidgid);
85902 +
85903 +bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap)
85904 +{
85905 + struct user_namespace *ns = current_user_ns();
85906 +
85907 + return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
85908 + kgid_has_mapping(ns, inode->i_gid);
85909 +}
85910 +EXPORT_SYMBOL(capable_wrt_inode_uidgid_nolog);
85911 diff --git a/kernel/cgroup.c b/kernel/cgroup.c
85912 index ceee0c5..d6f81dd 100644
85913 --- a/kernel/cgroup.c
85914 +++ b/kernel/cgroup.c
85915 @@ -4757,7 +4757,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
85916 struct task_struct *task;
85917 int count = 0;
85918
85919 - seq_printf(seq, "css_set %p\n", cset);
85920 + seq_printf(seq, "css_set %pK\n", cset);
85921
85922 list_for_each_entry(task, &cset->tasks, cg_list) {
85923 if (count++ > MAX_TASKS_SHOWN_PER_CSS)
85924 diff --git a/kernel/compat.c b/kernel/compat.c
85925 index e40b043..3da8f51 100644
85926 --- a/kernel/compat.c
85927 +++ b/kernel/compat.c
85928 @@ -13,6 +13,7 @@
85929
85930 #include <linux/linkage.h>
85931 #include <linux/compat.h>
85932 +#include <linux/module.h>
85933 #include <linux/errno.h>
85934 #include <linux/time.h>
85935 #include <linux/signal.h>
85936 @@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
85937 mm_segment_t oldfs;
85938 long ret;
85939
85940 - restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
85941 + restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
85942 oldfs = get_fs();
85943 set_fs(KERNEL_DS);
85944 ret = hrtimer_nanosleep_restart(restart);
85945 @@ -252,7 +253,7 @@ COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
85946 oldfs = get_fs();
85947 set_fs(KERNEL_DS);
85948 ret = hrtimer_nanosleep(&tu,
85949 - rmtp ? (struct timespec __user *)&rmt : NULL,
85950 + rmtp ? (struct timespec __force_user *)&rmt : NULL,
85951 HRTIMER_MODE_REL, CLOCK_MONOTONIC);
85952 set_fs(oldfs);
85953
85954 @@ -361,7 +362,7 @@ COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set)
85955 mm_segment_t old_fs = get_fs();
85956
85957 set_fs(KERNEL_DS);
85958 - ret = sys_sigpending((old_sigset_t __user *) &s);
85959 + ret = sys_sigpending((old_sigset_t __force_user *) &s);
85960 set_fs(old_fs);
85961 if (ret == 0)
85962 ret = put_user(s, set);
85963 @@ -451,7 +452,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
85964 mm_segment_t old_fs = get_fs();
85965
85966 set_fs(KERNEL_DS);
85967 - ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r);
85968 + ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
85969 set_fs(old_fs);
85970
85971 if (!ret) {
85972 @@ -533,8 +534,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
85973 set_fs (KERNEL_DS);
85974 ret = sys_wait4(pid,
85975 (stat_addr ?
85976 - (unsigned int __user *) &status : NULL),
85977 - options, (struct rusage __user *) &r);
85978 + (unsigned int __force_user *) &status : NULL),
85979 + options, (struct rusage __force_user *) &r);
85980 set_fs (old_fs);
85981
85982 if (ret > 0) {
85983 @@ -560,8 +561,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
85984 memset(&info, 0, sizeof(info));
85985
85986 set_fs(KERNEL_DS);
85987 - ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
85988 - uru ? (struct rusage __user *)&ru : NULL);
85989 + ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
85990 + uru ? (struct rusage __force_user *)&ru : NULL);
85991 set_fs(old_fs);
85992
85993 if ((ret < 0) || (info.si_signo == 0))
85994 @@ -695,8 +696,8 @@ COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
85995 oldfs = get_fs();
85996 set_fs(KERNEL_DS);
85997 err = sys_timer_settime(timer_id, flags,
85998 - (struct itimerspec __user *) &newts,
85999 - (struct itimerspec __user *) &oldts);
86000 + (struct itimerspec __force_user *) &newts,
86001 + (struct itimerspec __force_user *) &oldts);
86002 set_fs(oldfs);
86003 if (!err && old && put_compat_itimerspec(old, &oldts))
86004 return -EFAULT;
86005 @@ -713,7 +714,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
86006 oldfs = get_fs();
86007 set_fs(KERNEL_DS);
86008 err = sys_timer_gettime(timer_id,
86009 - (struct itimerspec __user *) &ts);
86010 + (struct itimerspec __force_user *) &ts);
86011 set_fs(oldfs);
86012 if (!err && put_compat_itimerspec(setting, &ts))
86013 return -EFAULT;
86014 @@ -732,7 +733,7 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
86015 oldfs = get_fs();
86016 set_fs(KERNEL_DS);
86017 err = sys_clock_settime(which_clock,
86018 - (struct timespec __user *) &ts);
86019 + (struct timespec __force_user *) &ts);
86020 set_fs(oldfs);
86021 return err;
86022 }
86023 @@ -747,7 +748,7 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
86024 oldfs = get_fs();
86025 set_fs(KERNEL_DS);
86026 err = sys_clock_gettime(which_clock,
86027 - (struct timespec __user *) &ts);
86028 + (struct timespec __force_user *) &ts);
86029 set_fs(oldfs);
86030 if (!err && compat_put_timespec(&ts, tp))
86031 return -EFAULT;
86032 @@ -767,7 +768,7 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
86033
86034 oldfs = get_fs();
86035 set_fs(KERNEL_DS);
86036 - ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
86037 + ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
86038 set_fs(oldfs);
86039
86040 err = compat_put_timex(utp, &txc);
86041 @@ -787,7 +788,7 @@ COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
86042 oldfs = get_fs();
86043 set_fs(KERNEL_DS);
86044 err = sys_clock_getres(which_clock,
86045 - (struct timespec __user *) &ts);
86046 + (struct timespec __force_user *) &ts);
86047 set_fs(oldfs);
86048 if (!err && tp && compat_put_timespec(&ts, tp))
86049 return -EFAULT;
86050 @@ -801,7 +802,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
86051 struct timespec tu;
86052 struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
86053
86054 - restart->nanosleep.rmtp = (struct timespec __user *) &tu;
86055 + restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
86056 oldfs = get_fs();
86057 set_fs(KERNEL_DS);
86058 err = clock_nanosleep_restart(restart);
86059 @@ -833,8 +834,8 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
86060 oldfs = get_fs();
86061 set_fs(KERNEL_DS);
86062 err = sys_clock_nanosleep(which_clock, flags,
86063 - (struct timespec __user *) &in,
86064 - (struct timespec __user *) &out);
86065 + (struct timespec __force_user *) &in,
86066 + (struct timespec __force_user *) &out);
86067 set_fs(oldfs);
86068
86069 if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
86070 @@ -1128,7 +1129,7 @@ COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
86071 mm_segment_t old_fs = get_fs();
86072
86073 set_fs(KERNEL_DS);
86074 - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
86075 + ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
86076 set_fs(old_fs);
86077 if (compat_put_timespec(&t, interval))
86078 return -EFAULT;
86079 diff --git a/kernel/configs.c b/kernel/configs.c
86080 index c18b1f1..b9a0132 100644
86081 --- a/kernel/configs.c
86082 +++ b/kernel/configs.c
86083 @@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
86084 struct proc_dir_entry *entry;
86085
86086 /* create the current config file */
86087 +#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
86088 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
86089 + entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
86090 + &ikconfig_file_ops);
86091 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
86092 + entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
86093 + &ikconfig_file_ops);
86094 +#endif
86095 +#else
86096 entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
86097 &ikconfig_file_ops);
86098 +#endif
86099 +
86100 if (!entry)
86101 return -ENOMEM;
86102
86103 diff --git a/kernel/cred.c b/kernel/cred.c
86104 index e0573a4..26c0fd3 100644
86105 --- a/kernel/cred.c
86106 +++ b/kernel/cred.c
86107 @@ -164,6 +164,16 @@ void exit_creds(struct task_struct *tsk)
86108 validate_creds(cred);
86109 alter_cred_subscribers(cred, -1);
86110 put_cred(cred);
86111 +
86112 +#ifdef CONFIG_GRKERNSEC_SETXID
86113 + cred = (struct cred *) tsk->delayed_cred;
86114 + if (cred != NULL) {
86115 + tsk->delayed_cred = NULL;
86116 + validate_creds(cred);
86117 + alter_cred_subscribers(cred, -1);
86118 + put_cred(cred);
86119 + }
86120 +#endif
86121 }
86122
86123 /**
86124 @@ -411,7 +421,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
86125 * Always returns 0 thus allowing this function to be tail-called at the end
86126 * of, say, sys_setgid().
86127 */
86128 -int commit_creds(struct cred *new)
86129 +static int __commit_creds(struct cred *new)
86130 {
86131 struct task_struct *task = current;
86132 const struct cred *old = task->real_cred;
86133 @@ -430,6 +440,8 @@ int commit_creds(struct cred *new)
86134
86135 get_cred(new); /* we will require a ref for the subj creds too */
86136
86137 + gr_set_role_label(task, new->uid, new->gid);
86138 +
86139 /* dumpability changes */
86140 if (!uid_eq(old->euid, new->euid) ||
86141 !gid_eq(old->egid, new->egid) ||
86142 @@ -479,6 +491,105 @@ int commit_creds(struct cred *new)
86143 put_cred(old);
86144 return 0;
86145 }
86146 +#ifdef CONFIG_GRKERNSEC_SETXID
86147 +extern int set_user(struct cred *new);
86148 +
86149 +void gr_delayed_cred_worker(void)
86150 +{
86151 + const struct cred *new = current->delayed_cred;
86152 + struct cred *ncred;
86153 +
86154 + current->delayed_cred = NULL;
86155 +
86156 + if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
86157 + // from doing get_cred on it when queueing this
86158 + put_cred(new);
86159 + return;
86160 + } else if (new == NULL)
86161 + return;
86162 +
86163 + ncred = prepare_creds();
86164 + if (!ncred)
86165 + goto die;
86166 + // uids
86167 + ncred->uid = new->uid;
86168 + ncred->euid = new->euid;
86169 + ncred->suid = new->suid;
86170 + ncred->fsuid = new->fsuid;
86171 + // gids
86172 + ncred->gid = new->gid;
86173 + ncred->egid = new->egid;
86174 + ncred->sgid = new->sgid;
86175 + ncred->fsgid = new->fsgid;
86176 + // groups
86177 + set_groups(ncred, new->group_info);
86178 + // caps
86179 + ncred->securebits = new->securebits;
86180 + ncred->cap_inheritable = new->cap_inheritable;
86181 + ncred->cap_permitted = new->cap_permitted;
86182 + ncred->cap_effective = new->cap_effective;
86183 + ncred->cap_bset = new->cap_bset;
86184 +
86185 + if (set_user(ncred)) {
86186 + abort_creds(ncred);
86187 + goto die;
86188 + }
86189 +
86190 + // from doing get_cred on it when queueing this
86191 + put_cred(new);
86192 +
86193 + __commit_creds(ncred);
86194 + return;
86195 +die:
86196 + // from doing get_cred on it when queueing this
86197 + put_cred(new);
86198 + do_group_exit(SIGKILL);
86199 +}
86200 +#endif
86201 +
86202 +int commit_creds(struct cred *new)
86203 +{
86204 +#ifdef CONFIG_GRKERNSEC_SETXID
86205 + int ret;
86206 + int schedule_it = 0;
86207 + struct task_struct *t;
86208 + unsigned oldsecurebits = current_cred()->securebits;
86209 +
86210 + /* we won't get called with tasklist_lock held for writing
86211 + and interrupts disabled as the cred struct in that case is
86212 + init_cred
86213 + */
86214 + if (grsec_enable_setxid && !current_is_single_threaded() &&
86215 + uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
86216 + !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
86217 + schedule_it = 1;
86218 + }
86219 + ret = __commit_creds(new);
86220 + if (schedule_it) {
86221 + rcu_read_lock();
86222 + read_lock(&tasklist_lock);
86223 + for (t = next_thread(current); t != current;
86224 + t = next_thread(t)) {
86225 + /* we'll check if the thread has uid 0 in
86226 + * the delayed worker routine
86227 + */
86228 + if (task_securebits(t) == oldsecurebits &&
86229 + t->delayed_cred == NULL) {
86230 + t->delayed_cred = get_cred(new);
86231 + set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
86232 + set_tsk_need_resched(t);
86233 + }
86234 + }
86235 + read_unlock(&tasklist_lock);
86236 + rcu_read_unlock();
86237 + }
86238 +
86239 + return ret;
86240 +#else
86241 + return __commit_creds(new);
86242 +#endif
86243 +}
86244 +
86245 EXPORT_SYMBOL(commit_creds);
86246
86247 /**
86248 diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
86249 index 2956c8d..cfe1e2e 100644
86250 --- a/kernel/debug/debug_core.c
86251 +++ b/kernel/debug/debug_core.c
86252 @@ -124,7 +124,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
86253 */
86254 static atomic_t masters_in_kgdb;
86255 static atomic_t slaves_in_kgdb;
86256 -static atomic_t kgdb_break_tasklet_var;
86257 +static atomic_unchecked_t kgdb_break_tasklet_var;
86258 atomic_t kgdb_setting_breakpoint;
86259
86260 struct task_struct *kgdb_usethread;
86261 @@ -134,7 +134,7 @@ int kgdb_single_step;
86262 static pid_t kgdb_sstep_pid;
86263
86264 /* to keep track of the CPU which is doing the single stepping*/
86265 -atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
86266 +atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
86267
86268 /*
86269 * If you are debugging a problem where roundup (the collection of
86270 @@ -549,7 +549,7 @@ return_normal:
86271 * kernel will only try for the value of sstep_tries before
86272 * giving up and continuing on.
86273 */
86274 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
86275 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
86276 (kgdb_info[cpu].task &&
86277 kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
86278 atomic_set(&kgdb_active, -1);
86279 @@ -647,8 +647,8 @@ cpu_master_loop:
86280 }
86281
86282 kgdb_restore:
86283 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
86284 - int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
86285 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
86286 + int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
86287 if (kgdb_info[sstep_cpu].task)
86288 kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
86289 else
86290 @@ -925,18 +925,18 @@ static void kgdb_unregister_callbacks(void)
86291 static void kgdb_tasklet_bpt(unsigned long ing)
86292 {
86293 kgdb_breakpoint();
86294 - atomic_set(&kgdb_break_tasklet_var, 0);
86295 + atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
86296 }
86297
86298 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
86299
86300 void kgdb_schedule_breakpoint(void)
86301 {
86302 - if (atomic_read(&kgdb_break_tasklet_var) ||
86303 + if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
86304 atomic_read(&kgdb_active) != -1 ||
86305 atomic_read(&kgdb_setting_breakpoint))
86306 return;
86307 - atomic_inc(&kgdb_break_tasklet_var);
86308 + atomic_inc_unchecked(&kgdb_break_tasklet_var);
86309 tasklet_schedule(&kgdb_tasklet_breakpoint);
86310 }
86311 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
86312 diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
86313 index 0b097c8..11dd5c5 100644
86314 --- a/kernel/debug/kdb/kdb_main.c
86315 +++ b/kernel/debug/kdb/kdb_main.c
86316 @@ -1977,7 +1977,7 @@ static int kdb_lsmod(int argc, const char **argv)
86317 continue;
86318
86319 kdb_printf("%-20s%8u 0x%p ", mod->name,
86320 - mod->core_size, (void *)mod);
86321 + mod->core_size_rx + mod->core_size_rw, (void *)mod);
86322 #ifdef CONFIG_MODULE_UNLOAD
86323 kdb_printf("%4ld ", module_refcount(mod));
86324 #endif
86325 @@ -1987,7 +1987,7 @@ static int kdb_lsmod(int argc, const char **argv)
86326 kdb_printf(" (Loading)");
86327 else
86328 kdb_printf(" (Live)");
86329 - kdb_printf(" 0x%p", mod->module_core);
86330 + kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
86331
86332 #ifdef CONFIG_MODULE_UNLOAD
86333 {
86334 diff --git a/kernel/events/core.c b/kernel/events/core.c
86335 index 440eefc..0909f02 100644
86336 --- a/kernel/events/core.c
86337 +++ b/kernel/events/core.c
86338 @@ -158,8 +158,15 @@ static struct srcu_struct pmus_srcu;
86339 * 0 - disallow raw tracepoint access for unpriv
86340 * 1 - disallow cpu events for unpriv
86341 * 2 - disallow kernel profiling for unpriv
86342 + * 3 - disallow all unpriv perf event use
86343 */
86344 -int sysctl_perf_event_paranoid __read_mostly = 1;
86345 +#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
86346 +int sysctl_perf_event_legitimately_concerned __read_mostly = 3;
86347 +#elif defined(CONFIG_GRKERNSEC_HIDESYM)
86348 +int sysctl_perf_event_legitimately_concerned __read_mostly = 2;
86349 +#else
86350 +int sysctl_perf_event_legitimately_concerned __read_mostly = 1;
86351 +#endif
86352
86353 /* Minimum for 512 kiB + 1 user control page */
86354 int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
86355 @@ -185,7 +192,7 @@ void update_perf_cpu_limits(void)
86356
86357 tmp *= sysctl_perf_cpu_time_max_percent;
86358 do_div(tmp, 100);
86359 - ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
86360 + ACCESS_ONCE_RW(perf_sample_allowed_ns) = tmp;
86361 }
86362
86363 static int perf_rotate_context(struct perf_cpu_context *cpuctx);
86364 @@ -291,7 +298,7 @@ void perf_sample_event_took(u64 sample_len_ns)
86365 }
86366 }
86367
86368 -static atomic64_t perf_event_id;
86369 +static atomic64_unchecked_t perf_event_id;
86370
86371 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
86372 enum event_type_t event_type);
86373 @@ -3002,7 +3009,7 @@ static void __perf_event_read(void *info)
86374
86375 static inline u64 perf_event_count(struct perf_event *event)
86376 {
86377 - return local64_read(&event->count) + atomic64_read(&event->child_count);
86378 + return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
86379 }
86380
86381 static u64 perf_event_read(struct perf_event *event)
86382 @@ -3361,9 +3368,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
86383 mutex_lock(&event->child_mutex);
86384 total += perf_event_read(event);
86385 *enabled += event->total_time_enabled +
86386 - atomic64_read(&event->child_total_time_enabled);
86387 + atomic64_read_unchecked(&event->child_total_time_enabled);
86388 *running += event->total_time_running +
86389 - atomic64_read(&event->child_total_time_running);
86390 + atomic64_read_unchecked(&event->child_total_time_running);
86391
86392 list_for_each_entry(child, &event->child_list, child_list) {
86393 total += perf_event_read(child);
86394 @@ -3792,10 +3799,10 @@ void perf_event_update_userpage(struct perf_event *event)
86395 userpg->offset -= local64_read(&event->hw.prev_count);
86396
86397 userpg->time_enabled = enabled +
86398 - atomic64_read(&event->child_total_time_enabled);
86399 + atomic64_read_unchecked(&event->child_total_time_enabled);
86400
86401 userpg->time_running = running +
86402 - atomic64_read(&event->child_total_time_running);
86403 + atomic64_read_unchecked(&event->child_total_time_running);
86404
86405 arch_perf_update_userpage(userpg, now);
86406
86407 @@ -4359,7 +4366,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
86408
86409 /* Data. */
86410 sp = perf_user_stack_pointer(regs);
86411 - rem = __output_copy_user(handle, (void *) sp, dump_size);
86412 + rem = __output_copy_user(handle, (void __user *) sp, dump_size);
86413 dyn_size = dump_size - rem;
86414
86415 perf_output_skip(handle, rem);
86416 @@ -4450,11 +4457,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
86417 values[n++] = perf_event_count(event);
86418 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
86419 values[n++] = enabled +
86420 - atomic64_read(&event->child_total_time_enabled);
86421 + atomic64_read_unchecked(&event->child_total_time_enabled);
86422 }
86423 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
86424 values[n++] = running +
86425 - atomic64_read(&event->child_total_time_running);
86426 + atomic64_read_unchecked(&event->child_total_time_running);
86427 }
86428 if (read_format & PERF_FORMAT_ID)
86429 values[n++] = primary_event_id(event);
86430 @@ -6733,7 +6740,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
86431 event->parent = parent_event;
86432
86433 event->ns = get_pid_ns(task_active_pid_ns(current));
86434 - event->id = atomic64_inc_return(&perf_event_id);
86435 + event->id = atomic64_inc_return_unchecked(&perf_event_id);
86436
86437 event->state = PERF_EVENT_STATE_INACTIVE;
86438
86439 @@ -7015,6 +7022,11 @@ SYSCALL_DEFINE5(perf_event_open,
86440 if (flags & ~PERF_FLAG_ALL)
86441 return -EINVAL;
86442
86443 +#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
86444 + if (perf_paranoid_any() && !capable(CAP_SYS_ADMIN))
86445 + return -EACCES;
86446 +#endif
86447 +
86448 err = perf_copy_attr(attr_uptr, &attr);
86449 if (err)
86450 return err;
86451 @@ -7353,10 +7365,10 @@ static void sync_child_event(struct perf_event *child_event,
86452 /*
86453 * Add back the child's count to the parent's count:
86454 */
86455 - atomic64_add(child_val, &parent_event->child_count);
86456 - atomic64_add(child_event->total_time_enabled,
86457 + atomic64_add_unchecked(child_val, &parent_event->child_count);
86458 + atomic64_add_unchecked(child_event->total_time_enabled,
86459 &parent_event->child_total_time_enabled);
86460 - atomic64_add(child_event->total_time_running,
86461 + atomic64_add_unchecked(child_event->total_time_running,
86462 &parent_event->child_total_time_running);
86463
86464 /*
86465 diff --git a/kernel/events/internal.h b/kernel/events/internal.h
86466 index 569b2187..19940d9 100644
86467 --- a/kernel/events/internal.h
86468 +++ b/kernel/events/internal.h
86469 @@ -81,10 +81,10 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
86470 return rb->nr_pages << (PAGE_SHIFT + page_order(rb));
86471 }
86472
86473 -#define DEFINE_OUTPUT_COPY(func_name, memcpy_func) \
86474 +#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user) \
86475 static inline unsigned long \
86476 func_name(struct perf_output_handle *handle, \
86477 - const void *buf, unsigned long len) \
86478 + const void user *buf, unsigned long len) \
86479 { \
86480 unsigned long size, written; \
86481 \
86482 @@ -117,7 +117,7 @@ memcpy_common(void *dst, const void *src, unsigned long n)
86483 return 0;
86484 }
86485
86486 -DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
86487 +DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
86488
86489 static inline unsigned long
86490 memcpy_skip(void *dst, const void *src, unsigned long n)
86491 @@ -125,7 +125,7 @@ memcpy_skip(void *dst, const void *src, unsigned long n)
86492 return 0;
86493 }
86494
86495 -DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
86496 +DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip, )
86497
86498 #ifndef arch_perf_out_copy_user
86499 #define arch_perf_out_copy_user arch_perf_out_copy_user
86500 @@ -143,7 +143,7 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
86501 }
86502 #endif
86503
86504 -DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
86505 +DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
86506
86507 /* Callchain handling */
86508 extern struct perf_callchain_entry *
86509 diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
86510 index 04709b6..d330828 100644
86511 --- a/kernel/events/uprobes.c
86512 +++ b/kernel/events/uprobes.c
86513 @@ -1666,7 +1666,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr)
86514 {
86515 struct page *page;
86516 uprobe_opcode_t opcode;
86517 - int result;
86518 + long result;
86519
86520 pagefault_disable();
86521 result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
86522 diff --git a/kernel/exit.c b/kernel/exit.c
86523 index 6ed6a1d..edecb0e 100644
86524 --- a/kernel/exit.c
86525 +++ b/kernel/exit.c
86526 @@ -173,6 +173,10 @@ void release_task(struct task_struct * p)
86527 struct task_struct *leader;
86528 int zap_leader;
86529 repeat:
86530 +#ifdef CONFIG_NET
86531 + gr_del_task_from_ip_table(p);
86532 +#endif
86533 +
86534 /* don't need to get the RCU readlock here - the process is dead and
86535 * can't be modifying its own credentials. But shut RCU-lockdep up */
86536 rcu_read_lock();
86537 @@ -330,7 +334,7 @@ int allow_signal(int sig)
86538 * know it'll be handled, so that they don't get converted to
86539 * SIGKILL or just silently dropped.
86540 */
86541 - current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2;
86542 + current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2;
86543 recalc_sigpending();
86544 spin_unlock_irq(&current->sighand->siglock);
86545 return 0;
86546 @@ -699,6 +703,8 @@ void do_exit(long code)
86547 struct task_struct *tsk = current;
86548 int group_dead;
86549
86550 + set_fs(USER_DS);
86551 +
86552 profile_task_exit(tsk);
86553
86554 WARN_ON(blk_needs_flush_plug(tsk));
86555 @@ -715,7 +721,6 @@ void do_exit(long code)
86556 * mm_release()->clear_child_tid() from writing to a user-controlled
86557 * kernel address.
86558 */
86559 - set_fs(USER_DS);
86560
86561 ptrace_event(PTRACE_EVENT_EXIT, code);
86562
86563 @@ -774,6 +779,9 @@ void do_exit(long code)
86564 tsk->exit_code = code;
86565 taskstats_exit(tsk, group_dead);
86566
86567 + gr_acl_handle_psacct(tsk, code);
86568 + gr_acl_handle_exit();
86569 +
86570 exit_mm(tsk);
86571
86572 if (group_dead)
86573 @@ -893,7 +901,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
86574 * Take down every thread in the group. This is called by fatal signals
86575 * as well as by sys_exit_group (below).
86576 */
86577 -void
86578 +__noreturn void
86579 do_group_exit(int exit_code)
86580 {
86581 struct signal_struct *sig = current->signal;
86582 diff --git a/kernel/fork.c b/kernel/fork.c
86583 index 68b9226..0700bf6 100644
86584 --- a/kernel/fork.c
86585 +++ b/kernel/fork.c
86586 @@ -183,6 +183,48 @@ void thread_info_cache_init(void)
86587 # endif
86588 #endif
86589
86590 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
86591 +static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
86592 + int node, void **lowmem_stack)
86593 +{
86594 + struct page *pages[THREAD_SIZE / PAGE_SIZE];
86595 + void *ret = NULL;
86596 + unsigned int i;
86597 +
86598 + *lowmem_stack = alloc_thread_info_node(tsk, node);
86599 + if (*lowmem_stack == NULL)
86600 + goto out;
86601 +
86602 + for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
86603 + pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
86604 +
86605 + /* use VM_IOREMAP to gain THREAD_SIZE alignment */
86606 + ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
86607 + if (ret == NULL) {
86608 + free_thread_info(*lowmem_stack);
86609 + *lowmem_stack = NULL;
86610 + }
86611 +
86612 +out:
86613 + return ret;
86614 +}
86615 +
86616 +static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
86617 +{
86618 + unmap_process_stacks(tsk);
86619 +}
86620 +#else
86621 +static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
86622 + int node, void **lowmem_stack)
86623 +{
86624 + return alloc_thread_info_node(tsk, node);
86625 +}
86626 +static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
86627 +{
86628 + free_thread_info(ti);
86629 +}
86630 +#endif
86631 +
86632 /* SLAB cache for signal_struct structures (tsk->signal) */
86633 static struct kmem_cache *signal_cachep;
86634
86635 @@ -201,18 +243,22 @@ struct kmem_cache *vm_area_cachep;
86636 /* SLAB cache for mm_struct structures (tsk->mm) */
86637 static struct kmem_cache *mm_cachep;
86638
86639 -static void account_kernel_stack(struct thread_info *ti, int account)
86640 +static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
86641 {
86642 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
86643 + struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
86644 +#else
86645 struct zone *zone = page_zone(virt_to_page(ti));
86646 +#endif
86647
86648 mod_zone_page_state(zone, NR_KERNEL_STACK, account);
86649 }
86650
86651 void free_task(struct task_struct *tsk)
86652 {
86653 - account_kernel_stack(tsk->stack, -1);
86654 + account_kernel_stack(tsk, tsk->stack, -1);
86655 arch_release_thread_info(tsk->stack);
86656 - free_thread_info(tsk->stack);
86657 + gr_free_thread_info(tsk, tsk->stack);
86658 rt_mutex_debug_task_free(tsk);
86659 ftrace_graph_exit_task(tsk);
86660 put_seccomp_filter(tsk);
86661 @@ -299,6 +345,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
86662 struct task_struct *tsk;
86663 struct thread_info *ti;
86664 unsigned long *stackend;
86665 + void *lowmem_stack;
86666 int node = tsk_fork_get_node(orig);
86667 int err;
86668
86669 @@ -306,7 +353,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
86670 if (!tsk)
86671 return NULL;
86672
86673 - ti = alloc_thread_info_node(tsk, node);
86674 + ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
86675 if (!ti)
86676 goto free_tsk;
86677
86678 @@ -315,6 +362,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
86679 goto free_ti;
86680
86681 tsk->stack = ti;
86682 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
86683 + tsk->lowmem_stack = lowmem_stack;
86684 +#endif
86685
86686 setup_thread_stack(tsk, orig);
86687 clear_user_return_notifier(tsk);
86688 @@ -323,7 +373,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
86689 *stackend = STACK_END_MAGIC; /* for overflow detection */
86690
86691 #ifdef CONFIG_CC_STACKPROTECTOR
86692 - tsk->stack_canary = get_random_int();
86693 + tsk->stack_canary = pax_get_random_long();
86694 #endif
86695
86696 /*
86697 @@ -337,24 +387,92 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
86698 tsk->splice_pipe = NULL;
86699 tsk->task_frag.page = NULL;
86700
86701 - account_kernel_stack(ti, 1);
86702 + account_kernel_stack(tsk, ti, 1);
86703
86704 return tsk;
86705
86706 free_ti:
86707 - free_thread_info(ti);
86708 + gr_free_thread_info(tsk, ti);
86709 free_tsk:
86710 free_task_struct(tsk);
86711 return NULL;
86712 }
86713
86714 #ifdef CONFIG_MMU
86715 -static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
86716 +static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
86717 +{
86718 + struct vm_area_struct *tmp;
86719 + unsigned long charge;
86720 + struct file *file;
86721 + int retval;
86722 +
86723 + charge = 0;
86724 + if (mpnt->vm_flags & VM_ACCOUNT) {
86725 + unsigned long len = vma_pages(mpnt);
86726 +
86727 + if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
86728 + goto fail_nomem;
86729 + charge = len;
86730 + }
86731 + tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
86732 + if (!tmp)
86733 + goto fail_nomem;
86734 + *tmp = *mpnt;
86735 + tmp->vm_mm = mm;
86736 + INIT_LIST_HEAD(&tmp->anon_vma_chain);
86737 + retval = vma_dup_policy(mpnt, tmp);
86738 + if (retval)
86739 + goto fail_nomem_policy;
86740 + if (anon_vma_fork(tmp, mpnt))
86741 + goto fail_nomem_anon_vma_fork;
86742 + tmp->vm_flags &= ~VM_LOCKED;
86743 + tmp->vm_next = tmp->vm_prev = NULL;
86744 + tmp->vm_mirror = NULL;
86745 + file = tmp->vm_file;
86746 + if (file) {
86747 + struct inode *inode = file_inode(file);
86748 + struct address_space *mapping = file->f_mapping;
86749 +
86750 + get_file(file);
86751 + if (tmp->vm_flags & VM_DENYWRITE)
86752 + atomic_dec(&inode->i_writecount);
86753 + mutex_lock(&mapping->i_mmap_mutex);
86754 + if (tmp->vm_flags & VM_SHARED)
86755 + mapping->i_mmap_writable++;
86756 + flush_dcache_mmap_lock(mapping);
86757 + /* insert tmp into the share list, just after mpnt */
86758 + if (unlikely(tmp->vm_flags & VM_NONLINEAR))
86759 + vma_nonlinear_insert(tmp, &mapping->i_mmap_nonlinear);
86760 + else
86761 + vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
86762 + flush_dcache_mmap_unlock(mapping);
86763 + mutex_unlock(&mapping->i_mmap_mutex);
86764 + }
86765 +
86766 + /*
86767 + * Clear hugetlb-related page reserves for children. This only
86768 + * affects MAP_PRIVATE mappings. Faults generated by the child
86769 + * are not guaranteed to succeed, even if read-only
86770 + */
86771 + if (is_vm_hugetlb_page(tmp))
86772 + reset_vma_resv_huge_pages(tmp);
86773 +
86774 + return tmp;
86775 +
86776 +fail_nomem_anon_vma_fork:
86777 + mpol_put(vma_policy(tmp));
86778 +fail_nomem_policy:
86779 + kmem_cache_free(vm_area_cachep, tmp);
86780 +fail_nomem:
86781 + vm_unacct_memory(charge);
86782 + return NULL;
86783 +}
86784 +
86785 +static __latent_entropy int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
86786 {
86787 struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
86788 struct rb_node **rb_link, *rb_parent;
86789 int retval;
86790 - unsigned long charge;
86791
86792 uprobe_start_dup_mmap();
86793 down_write(&oldmm->mmap_sem);
86794 @@ -383,55 +501,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
86795
86796 prev = NULL;
86797 for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
86798 - struct file *file;
86799 -
86800 if (mpnt->vm_flags & VM_DONTCOPY) {
86801 vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
86802 -vma_pages(mpnt));
86803 continue;
86804 }
86805 - charge = 0;
86806 - if (mpnt->vm_flags & VM_ACCOUNT) {
86807 - unsigned long len = vma_pages(mpnt);
86808 -
86809 - if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
86810 - goto fail_nomem;
86811 - charge = len;
86812 - }
86813 - tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
86814 - if (!tmp)
86815 - goto fail_nomem;
86816 - *tmp = *mpnt;
86817 - INIT_LIST_HEAD(&tmp->anon_vma_chain);
86818 - retval = vma_dup_policy(mpnt, tmp);
86819 - if (retval)
86820 - goto fail_nomem_policy;
86821 - tmp->vm_mm = mm;
86822 - if (anon_vma_fork(tmp, mpnt))
86823 - goto fail_nomem_anon_vma_fork;
86824 - tmp->vm_flags &= ~VM_LOCKED;
86825 - tmp->vm_next = tmp->vm_prev = NULL;
86826 - file = tmp->vm_file;
86827 - if (file) {
86828 - struct inode *inode = file_inode(file);
86829 - struct address_space *mapping = file->f_mapping;
86830 -
86831 - get_file(file);
86832 - if (tmp->vm_flags & VM_DENYWRITE)
86833 - atomic_dec(&inode->i_writecount);
86834 - mutex_lock(&mapping->i_mmap_mutex);
86835 - if (tmp->vm_flags & VM_SHARED)
86836 - mapping->i_mmap_writable++;
86837 - flush_dcache_mmap_lock(mapping);
86838 - /* insert tmp into the share list, just after mpnt */
86839 - if (unlikely(tmp->vm_flags & VM_NONLINEAR))
86840 - vma_nonlinear_insert(tmp,
86841 - &mapping->i_mmap_nonlinear);
86842 - else
86843 - vma_interval_tree_insert_after(tmp, mpnt,
86844 - &mapping->i_mmap);
86845 - flush_dcache_mmap_unlock(mapping);
86846 - mutex_unlock(&mapping->i_mmap_mutex);
86847 + tmp = dup_vma(mm, oldmm, mpnt);
86848 + if (!tmp) {
86849 + retval = -ENOMEM;
86850 + goto out;
86851 }
86852
86853 /*
86854 @@ -463,6 +541,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
86855 if (retval)
86856 goto out;
86857 }
86858 +
86859 +#ifdef CONFIG_PAX_SEGMEXEC
86860 + if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
86861 + struct vm_area_struct *mpnt_m;
86862 +
86863 + for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
86864 + BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
86865 +
86866 + if (!mpnt->vm_mirror)
86867 + continue;
86868 +
86869 + if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
86870 + BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
86871 + mpnt->vm_mirror = mpnt_m;
86872 + } else {
86873 + BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
86874 + mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
86875 + mpnt_m->vm_mirror->vm_mirror = mpnt_m;
86876 + mpnt->vm_mirror->vm_mirror = mpnt;
86877 + }
86878 + }
86879 + BUG_ON(mpnt_m);
86880 + }
86881 +#endif
86882 +
86883 /* a new mm has just been created */
86884 arch_dup_mmap(oldmm, mm);
86885 retval = 0;
86886 @@ -472,14 +575,6 @@ out:
86887 up_write(&oldmm->mmap_sem);
86888 uprobe_end_dup_mmap();
86889 return retval;
86890 -fail_nomem_anon_vma_fork:
86891 - mpol_put(vma_policy(tmp));
86892 -fail_nomem_policy:
86893 - kmem_cache_free(vm_area_cachep, tmp);
86894 -fail_nomem:
86895 - retval = -ENOMEM;
86896 - vm_unacct_memory(charge);
86897 - goto out;
86898 }
86899
86900 static inline int mm_alloc_pgd(struct mm_struct *mm)
86901 @@ -698,8 +793,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
86902 return ERR_PTR(err);
86903
86904 mm = get_task_mm(task);
86905 - if (mm && mm != current->mm &&
86906 - !ptrace_may_access(task, mode)) {
86907 + if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
86908 + (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
86909 mmput(mm);
86910 mm = ERR_PTR(-EACCES);
86911 }
86912 @@ -918,13 +1013,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
86913 spin_unlock(&fs->lock);
86914 return -EAGAIN;
86915 }
86916 - fs->users++;
86917 + atomic_inc(&fs->users);
86918 spin_unlock(&fs->lock);
86919 return 0;
86920 }
86921 tsk->fs = copy_fs_struct(fs);
86922 if (!tsk->fs)
86923 return -ENOMEM;
86924 + /* Carry through gr_chroot_dentry and is_chrooted instead
86925 + of recomputing it here. Already copied when the task struct
86926 + is duplicated. This allows pivot_root to not be treated as
86927 + a chroot
86928 + */
86929 + //gr_set_chroot_entries(tsk, &tsk->fs->root);
86930 +
86931 return 0;
86932 }
86933
86934 @@ -1133,7 +1235,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
86935 * parts of the process environment (as per the clone
86936 * flags). The actual kick-off is left to the caller.
86937 */
86938 -static struct task_struct *copy_process(unsigned long clone_flags,
86939 +static __latent_entropy struct task_struct *copy_process(unsigned long clone_flags,
86940 unsigned long stack_start,
86941 unsigned long stack_size,
86942 int __user *child_tidptr,
86943 @@ -1205,6 +1307,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
86944 DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
86945 #endif
86946 retval = -EAGAIN;
86947 +
86948 + gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
86949 +
86950 if (atomic_read(&p->real_cred->user->processes) >=
86951 task_rlimit(p, RLIMIT_NPROC)) {
86952 if (p->real_cred->user != INIT_USER &&
86953 @@ -1452,6 +1557,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
86954 goto bad_fork_free_pid;
86955 }
86956
86957 + /* synchronizes with gr_set_acls()
86958 + we need to call this past the point of no return for fork()
86959 + */
86960 + gr_copy_label(p);
86961 +
86962 if (likely(p->pid)) {
86963 ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
86964
86965 @@ -1541,6 +1651,8 @@ bad_fork_cleanup_count:
86966 bad_fork_free:
86967 free_task(p);
86968 fork_out:
86969 + gr_log_forkfail(retval);
86970 +
86971 return ERR_PTR(retval);
86972 }
86973
86974 @@ -1602,6 +1714,7 @@ long do_fork(unsigned long clone_flags,
86975
86976 p = copy_process(clone_flags, stack_start, stack_size,
86977 child_tidptr, NULL, trace);
86978 + add_latent_entropy();
86979 /*
86980 * Do this prior waking up the new thread - the thread pointer
86981 * might get invalid after that point, if the thread exits quickly.
86982 @@ -1618,6 +1731,8 @@ long do_fork(unsigned long clone_flags,
86983 if (clone_flags & CLONE_PARENT_SETTID)
86984 put_user(nr, parent_tidptr);
86985
86986 + gr_handle_brute_check();
86987 +
86988 if (clone_flags & CLONE_VFORK) {
86989 p->vfork_done = &vfork;
86990 init_completion(&vfork);
86991 @@ -1736,7 +1851,7 @@ void __init proc_caches_init(void)
86992 mm_cachep = kmem_cache_create("mm_struct",
86993 sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
86994 SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL);
86995 - vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC);
86996 + vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC | SLAB_NO_SANITIZE);
86997 mmap_init();
86998 nsproxy_cache_init();
86999 }
87000 @@ -1776,7 +1891,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
87001 return 0;
87002
87003 /* don't need lock here; in the worst case we'll do useless copy */
87004 - if (fs->users == 1)
87005 + if (atomic_read(&fs->users) == 1)
87006 return 0;
87007
87008 *new_fsp = copy_fs_struct(fs);
87009 @@ -1883,7 +1998,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
87010 fs = current->fs;
87011 spin_lock(&fs->lock);
87012 current->fs = new_fs;
87013 - if (--fs->users)
87014 + gr_set_chroot_entries(current, &current->fs->root);
87015 + if (atomic_dec_return(&fs->users))
87016 new_fs = NULL;
87017 else
87018 new_fs = fs;
87019 diff --git a/kernel/futex.c b/kernel/futex.c
87020 index de938d2..c566038 100644
87021 --- a/kernel/futex.c
87022 +++ b/kernel/futex.c
87023 @@ -202,7 +202,7 @@ struct futex_pi_state {
87024 atomic_t refcount;
87025
87026 union futex_key key;
87027 -};
87028 +} __randomize_layout;
87029
87030 /**
87031 * struct futex_q - The hashed futex queue entry, one per waiting task
87032 @@ -236,7 +236,7 @@ struct futex_q {
87033 struct rt_mutex_waiter *rt_waiter;
87034 union futex_key *requeue_pi_key;
87035 u32 bitset;
87036 -};
87037 +} __randomize_layout;
87038
87039 static const struct futex_q futex_q_init = {
87040 /* list gets initialized in queue_me()*/
87041 @@ -394,6 +394,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
87042 struct page *page, *page_head;
87043 int err, ro = 0;
87044
87045 +#ifdef CONFIG_PAX_SEGMEXEC
87046 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
87047 + return -EFAULT;
87048 +#endif
87049 +
87050 /*
87051 * The futex address must be "naturally" aligned.
87052 */
87053 @@ -593,7 +598,7 @@ static int cmpxchg_futex_value_locked(u32 *curval, u32 __user *uaddr,
87054
87055 static int get_futex_value_locked(u32 *dest, u32 __user *from)
87056 {
87057 - int ret;
87058 + unsigned long ret;
87059
87060 pagefault_disable();
87061 ret = __copy_from_user_inatomic(dest, from, sizeof(u32));
87062 @@ -3033,6 +3038,7 @@ static void __init futex_detect_cmpxchg(void)
87063 {
87064 #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
87065 u32 curval;
87066 + mm_segment_t oldfs;
87067
87068 /*
87069 * This will fail and we want it. Some arch implementations do
87070 @@ -3044,8 +3050,11 @@ static void __init futex_detect_cmpxchg(void)
87071 * implementation, the non-functional ones will return
87072 * -ENOSYS.
87073 */
87074 + oldfs = get_fs();
87075 + set_fs(USER_DS);
87076 if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
87077 futex_cmpxchg_enabled = 1;
87078 + set_fs(oldfs);
87079 #endif
87080 }
87081
87082 diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
87083 index 55c8c93..9ba7ad6 100644
87084 --- a/kernel/futex_compat.c
87085 +++ b/kernel/futex_compat.c
87086 @@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
87087 return 0;
87088 }
87089
87090 -static void __user *futex_uaddr(struct robust_list __user *entry,
87091 +static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
87092 compat_long_t futex_offset)
87093 {
87094 compat_uptr_t base = ptr_to_compat(entry);
87095 diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
87096 index f45b75b..bfac6d5 100644
87097 --- a/kernel/gcov/base.c
87098 +++ b/kernel/gcov/base.c
87099 @@ -108,11 +108,6 @@ void gcov_enable_events(void)
87100 }
87101
87102 #ifdef CONFIG_MODULES
87103 -static inline int within(void *addr, void *start, unsigned long size)
87104 -{
87105 - return ((addr >= start) && (addr < start + size));
87106 -}
87107 -
87108 /* Update list and generate events when modules are unloaded. */
87109 static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
87110 void *data)
87111 @@ -127,7 +122,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
87112
87113 /* Remove entries located in module from linked list. */
87114 while ((info = gcov_info_next(info))) {
87115 - if (within(info, mod->module_core, mod->core_size)) {
87116 + if (within_module_core_rw((unsigned long)info, mod)) {
87117 gcov_info_unlink(prev, info);
87118 if (gcov_events_enabled)
87119 gcov_event(GCOV_REMOVE, info);
87120 diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
87121 index e0501fe..312edd6 100644
87122 --- a/kernel/hrtimer.c
87123 +++ b/kernel/hrtimer.c
87124 @@ -1448,7 +1448,7 @@ void hrtimer_peek_ahead_timers(void)
87125 local_irq_restore(flags);
87126 }
87127
87128 -static void run_hrtimer_softirq(struct softirq_action *h)
87129 +static __latent_entropy void run_hrtimer_softirq(void)
87130 {
87131 hrtimer_peek_ahead_timers();
87132 }
87133 diff --git a/kernel/irq_work.c b/kernel/irq_work.c
87134 index a82170e..5b01e7f 100644
87135 --- a/kernel/irq_work.c
87136 +++ b/kernel/irq_work.c
87137 @@ -191,12 +191,13 @@ static int irq_work_cpu_notify(struct notifier_block *self,
87138 return NOTIFY_OK;
87139 }
87140
87141 -static struct notifier_block cpu_notify;
87142 +static struct notifier_block cpu_notify = {
87143 + .notifier_call = irq_work_cpu_notify,
87144 + .priority = 0,
87145 +};
87146
87147 static __init int irq_work_init_cpu_notifier(void)
87148 {
87149 - cpu_notify.notifier_call = irq_work_cpu_notify;
87150 - cpu_notify.priority = 0;
87151 register_cpu_notifier(&cpu_notify);
87152 return 0;
87153 }
87154 diff --git a/kernel/jump_label.c b/kernel/jump_label.c
87155 index 9019f15..9a3c42e 100644
87156 --- a/kernel/jump_label.c
87157 +++ b/kernel/jump_label.c
87158 @@ -14,6 +14,7 @@
87159 #include <linux/err.h>
87160 #include <linux/static_key.h>
87161 #include <linux/jump_label_ratelimit.h>
87162 +#include <linux/mm.h>
87163
87164 #ifdef HAVE_JUMP_LABEL
87165
87166 @@ -51,7 +52,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
87167
87168 size = (((unsigned long)stop - (unsigned long)start)
87169 / sizeof(struct jump_entry));
87170 + pax_open_kernel();
87171 sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
87172 + pax_close_kernel();
87173 }
87174
87175 static void jump_label_update(struct static_key *key, int enable);
87176 @@ -363,10 +366,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
87177 struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
87178 struct jump_entry *iter;
87179
87180 + pax_open_kernel();
87181 for (iter = iter_start; iter < iter_stop; iter++) {
87182 if (within_module_init(iter->code, mod))
87183 iter->code = 0;
87184 }
87185 + pax_close_kernel();
87186 }
87187
87188 static int
87189 diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
87190 index cb0cf37..b69e161 100644
87191 --- a/kernel/kallsyms.c
87192 +++ b/kernel/kallsyms.c
87193 @@ -11,6 +11,9 @@
87194 * Changed the compression method from stem compression to "table lookup"
87195 * compression (see scripts/kallsyms.c for a more complete description)
87196 */
87197 +#ifdef CONFIG_GRKERNSEC_HIDESYM
87198 +#define __INCLUDED_BY_HIDESYM 1
87199 +#endif
87200 #include <linux/kallsyms.h>
87201 #include <linux/module.h>
87202 #include <linux/init.h>
87203 @@ -54,12 +57,33 @@ extern const unsigned long kallsyms_markers[] __weak;
87204
87205 static inline int is_kernel_inittext(unsigned long addr)
87206 {
87207 + if (system_state != SYSTEM_BOOTING)
87208 + return 0;
87209 +
87210 if (addr >= (unsigned long)_sinittext
87211 && addr <= (unsigned long)_einittext)
87212 return 1;
87213 return 0;
87214 }
87215
87216 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
87217 +#ifdef CONFIG_MODULES
87218 +static inline int is_module_text(unsigned long addr)
87219 +{
87220 + if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
87221 + return 1;
87222 +
87223 + addr = ktla_ktva(addr);
87224 + return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
87225 +}
87226 +#else
87227 +static inline int is_module_text(unsigned long addr)
87228 +{
87229 + return 0;
87230 +}
87231 +#endif
87232 +#endif
87233 +
87234 static inline int is_kernel_text(unsigned long addr)
87235 {
87236 if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
87237 @@ -70,13 +94,28 @@ static inline int is_kernel_text(unsigned long addr)
87238
87239 static inline int is_kernel(unsigned long addr)
87240 {
87241 +
87242 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
87243 + if (is_kernel_text(addr) || is_kernel_inittext(addr))
87244 + return 1;
87245 +
87246 + if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
87247 +#else
87248 if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
87249 +#endif
87250 +
87251 return 1;
87252 return in_gate_area_no_mm(addr);
87253 }
87254
87255 static int is_ksym_addr(unsigned long addr)
87256 {
87257 +
87258 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
87259 + if (is_module_text(addr))
87260 + return 0;
87261 +#endif
87262 +
87263 if (all_var)
87264 return is_kernel(addr);
87265
87266 @@ -481,7 +520,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
87267
87268 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
87269 {
87270 - iter->name[0] = '\0';
87271 iter->nameoff = get_symbol_offset(new_pos);
87272 iter->pos = new_pos;
87273 }
87274 @@ -529,6 +567,11 @@ static int s_show(struct seq_file *m, void *p)
87275 {
87276 struct kallsym_iter *iter = m->private;
87277
87278 +#ifdef CONFIG_GRKERNSEC_HIDESYM
87279 + if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
87280 + return 0;
87281 +#endif
87282 +
87283 /* Some debugging symbols have no name. Ignore them. */
87284 if (!iter->name[0])
87285 return 0;
87286 @@ -542,6 +585,7 @@ static int s_show(struct seq_file *m, void *p)
87287 */
87288 type = iter->exported ? toupper(iter->type) :
87289 tolower(iter->type);
87290 +
87291 seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
87292 type, iter->name, iter->module_name);
87293 } else
87294 @@ -567,7 +611,7 @@ static int kallsyms_open(struct inode *inode, struct file *file)
87295 struct kallsym_iter *iter;
87296 int ret;
87297
87298 - iter = kmalloc(sizeof(*iter), GFP_KERNEL);
87299 + iter = kzalloc(sizeof(*iter), GFP_KERNEL);
87300 if (!iter)
87301 return -ENOMEM;
87302 reset_iter(iter, 0);
87303 diff --git a/kernel/kcmp.c b/kernel/kcmp.c
87304 index e30ac0f..3528cac 100644
87305 --- a/kernel/kcmp.c
87306 +++ b/kernel/kcmp.c
87307 @@ -99,6 +99,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
87308 struct task_struct *task1, *task2;
87309 int ret;
87310
87311 +#ifdef CONFIG_GRKERNSEC
87312 + return -ENOSYS;
87313 +#endif
87314 +
87315 rcu_read_lock();
87316
87317 /*
87318 diff --git a/kernel/kexec.c b/kernel/kexec.c
87319 index 28c5706..bfc8388 100644
87320 --- a/kernel/kexec.c
87321 +++ b/kernel/kexec.c
87322 @@ -1046,7 +1046,8 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
87323 compat_ulong_t, flags)
87324 {
87325 struct compat_kexec_segment in;
87326 - struct kexec_segment out, __user *ksegments;
87327 + struct kexec_segment out;
87328 + struct kexec_segment __user *ksegments;
87329 unsigned long i, result;
87330
87331 /* Don't allow clients that don't understand the native
87332 diff --git a/kernel/kmod.c b/kernel/kmod.c
87333 index 6b375af..eaff670 100644
87334 --- a/kernel/kmod.c
87335 +++ b/kernel/kmod.c
87336 @@ -75,7 +75,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
87337 kfree(info->argv);
87338 }
87339
87340 -static int call_modprobe(char *module_name, int wait)
87341 +static int call_modprobe(char *module_name, char *module_param, int wait)
87342 {
87343 struct subprocess_info *info;
87344 static char *envp[] = {
87345 @@ -85,7 +85,7 @@ static int call_modprobe(char *module_name, int wait)
87346 NULL
87347 };
87348
87349 - char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
87350 + char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
87351 if (!argv)
87352 goto out;
87353
87354 @@ -97,7 +97,8 @@ static int call_modprobe(char *module_name, int wait)
87355 argv[1] = "-q";
87356 argv[2] = "--";
87357 argv[3] = module_name; /* check free_modprobe_argv() */
87358 - argv[4] = NULL;
87359 + argv[4] = module_param;
87360 + argv[5] = NULL;
87361
87362 info = call_usermodehelper_setup(modprobe_path, argv, envp, GFP_KERNEL,
87363 NULL, free_modprobe_argv, NULL);
87364 @@ -129,9 +130,8 @@ out:
87365 * If module auto-loading support is disabled then this function
87366 * becomes a no-operation.
87367 */
87368 -int __request_module(bool wait, const char *fmt, ...)
87369 +static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
87370 {
87371 - va_list args;
87372 char module_name[MODULE_NAME_LEN];
87373 unsigned int max_modprobes;
87374 int ret;
87375 @@ -150,9 +150,7 @@ int __request_module(bool wait, const char *fmt, ...)
87376 if (!modprobe_path[0])
87377 return 0;
87378
87379 - va_start(args, fmt);
87380 - ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
87381 - va_end(args);
87382 + ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
87383 if (ret >= MODULE_NAME_LEN)
87384 return -ENAMETOOLONG;
87385
87386 @@ -160,6 +158,20 @@ int __request_module(bool wait, const char *fmt, ...)
87387 if (ret)
87388 return ret;
87389
87390 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
87391 + if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
87392 + /* hack to workaround consolekit/udisks stupidity */
87393 + read_lock(&tasklist_lock);
87394 + if (!strcmp(current->comm, "mount") &&
87395 + current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
87396 + read_unlock(&tasklist_lock);
87397 + printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
87398 + return -EPERM;
87399 + }
87400 + read_unlock(&tasklist_lock);
87401 + }
87402 +#endif
87403 +
87404 /* If modprobe needs a service that is in a module, we get a recursive
87405 * loop. Limit the number of running kmod threads to max_threads/2 or
87406 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method
87407 @@ -188,11 +200,52 @@ int __request_module(bool wait, const char *fmt, ...)
87408
87409 trace_module_request(module_name, wait, _RET_IP_);
87410
87411 - ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
87412 + ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
87413
87414 atomic_dec(&kmod_concurrent);
87415 return ret;
87416 }
87417 +
87418 +int ___request_module(bool wait, char *module_param, const char *fmt, ...)
87419 +{
87420 + va_list args;
87421 + int ret;
87422 +
87423 + va_start(args, fmt);
87424 + ret = ____request_module(wait, module_param, fmt, args);
87425 + va_end(args);
87426 +
87427 + return ret;
87428 +}
87429 +
87430 +int __request_module(bool wait, const char *fmt, ...)
87431 +{
87432 + va_list args;
87433 + int ret;
87434 +
87435 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
87436 + if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
87437 + char module_param[MODULE_NAME_LEN];
87438 +
87439 + memset(module_param, 0, sizeof(module_param));
87440 +
87441 + snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
87442 +
87443 + va_start(args, fmt);
87444 + ret = ____request_module(wait, module_param, fmt, args);
87445 + va_end(args);
87446 +
87447 + return ret;
87448 + }
87449 +#endif
87450 +
87451 + va_start(args, fmt);
87452 + ret = ____request_module(wait, NULL, fmt, args);
87453 + va_end(args);
87454 +
87455 + return ret;
87456 +}
87457 +
87458 EXPORT_SYMBOL(__request_module);
87459 #endif /* CONFIG_MODULES */
87460
87461 @@ -218,6 +271,20 @@ static int ____call_usermodehelper(void *data)
87462 */
87463 set_user_nice(current, 0);
87464
87465 +#ifdef CONFIG_GRKERNSEC
87466 + /* this is race-free as far as userland is concerned as we copied
87467 + out the path to be used prior to this point and are now operating
87468 + on that copy
87469 + */
87470 + if ((strncmp(sub_info->path, "/sbin/", 6) && strncmp(sub_info->path, "/usr/lib/", 9) &&
87471 + strncmp(sub_info->path, "/lib/", 5) && strncmp(sub_info->path, "/lib64/", 7) &&
87472 + strcmp(sub_info->path, "/usr/share/apport/apport")) || strstr(sub_info->path, "..")) {
87473 + printk(KERN_ALERT "grsec: denied exec of usermode helper binary %.950s located outside of /sbin and system library paths\n", sub_info->path);
87474 + retval = -EPERM;
87475 + goto fail;
87476 + }
87477 +#endif
87478 +
87479 retval = -ENOMEM;
87480 new = prepare_kernel_cred(current);
87481 if (!new)
87482 @@ -240,8 +307,8 @@ static int ____call_usermodehelper(void *data)
87483 commit_creds(new);
87484
87485 retval = do_execve(getname_kernel(sub_info->path),
87486 - (const char __user *const __user *)sub_info->argv,
87487 - (const char __user *const __user *)sub_info->envp);
87488 + (const char __user *const __force_user *)sub_info->argv,
87489 + (const char __user *const __force_user *)sub_info->envp);
87490 if (!retval)
87491 return 0;
87492
87493 @@ -260,6 +327,10 @@ static int call_helper(void *data)
87494
87495 static void call_usermodehelper_freeinfo(struct subprocess_info *info)
87496 {
87497 +#ifdef CONFIG_GRKERNSEC
87498 + kfree(info->path);
87499 + info->path = info->origpath;
87500 +#endif
87501 if (info->cleanup)
87502 (*info->cleanup)(info);
87503 kfree(info);
87504 @@ -303,7 +374,7 @@ static int wait_for_helper(void *data)
87505 *
87506 * Thus the __user pointer cast is valid here.
87507 */
87508 - sys_wait4(pid, (int __user *)&ret, 0, NULL);
87509 + sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
87510
87511 /*
87512 * If ret is 0, either ____call_usermodehelper failed and the
87513 @@ -542,7 +613,12 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
87514 goto out;
87515
87516 INIT_WORK(&sub_info->work, __call_usermodehelper);
87517 +#ifdef CONFIG_GRKERNSEC
87518 + sub_info->origpath = path;
87519 + sub_info->path = kstrdup(path, gfp_mask);
87520 +#else
87521 sub_info->path = path;
87522 +#endif
87523 sub_info->argv = argv;
87524 sub_info->envp = envp;
87525
87526 @@ -650,7 +726,7 @@ EXPORT_SYMBOL(call_usermodehelper);
87527 static int proc_cap_handler(struct ctl_table *table, int write,
87528 void __user *buffer, size_t *lenp, loff_t *ppos)
87529 {
87530 - struct ctl_table t;
87531 + ctl_table_no_const t;
87532 unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
87533 kernel_cap_t new_cap;
87534 int err, i;
87535 diff --git a/kernel/kprobes.c b/kernel/kprobes.c
87536 index ceeadfc..11c18b6 100644
87537 --- a/kernel/kprobes.c
87538 +++ b/kernel/kprobes.c
87539 @@ -31,6 +31,9 @@
87540 * <jkenisto@us.ibm.com> and Prasanna S Panchamukhi
87541 * <prasanna@in.ibm.com> added function-return probes.
87542 */
87543 +#ifdef CONFIG_GRKERNSEC_HIDESYM
87544 +#define __INCLUDED_BY_HIDESYM 1
87545 +#endif
87546 #include <linux/kprobes.h>
87547 #include <linux/hash.h>
87548 #include <linux/init.h>
87549 @@ -135,12 +138,12 @@ enum kprobe_slot_state {
87550
87551 static void *alloc_insn_page(void)
87552 {
87553 - return module_alloc(PAGE_SIZE);
87554 + return module_alloc_exec(PAGE_SIZE);
87555 }
87556
87557 static void free_insn_page(void *page)
87558 {
87559 - module_free(NULL, page);
87560 + module_free_exec(NULL, page);
87561 }
87562
87563 struct kprobe_insn_cache kprobe_insn_slots = {
87564 @@ -2151,11 +2154,11 @@ static void __kprobes report_probe(struct seq_file *pi, struct kprobe *p,
87565 kprobe_type = "k";
87566
87567 if (sym)
87568 - seq_printf(pi, "%p %s %s+0x%x %s ",
87569 + seq_printf(pi, "%pK %s %s+0x%x %s ",
87570 p->addr, kprobe_type, sym, offset,
87571 (modname ? modname : " "));
87572 else
87573 - seq_printf(pi, "%p %s %p ",
87574 + seq_printf(pi, "%pK %s %pK ",
87575 p->addr, kprobe_type, p->addr);
87576
87577 if (!pp)
87578 diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
87579 index 2495a9b..071b906 100644
87580 --- a/kernel/ksysfs.c
87581 +++ b/kernel/ksysfs.c
87582 @@ -49,6 +49,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
87583 {
87584 if (count+1 > UEVENT_HELPER_PATH_LEN)
87585 return -ENOENT;
87586 + if (!capable(CAP_SYS_ADMIN))
87587 + return -EPERM;
87588 memcpy(uevent_helper, buf, count);
87589 uevent_helper[count] = '\0';
87590 if (count && uevent_helper[count-1] == '\n')
87591 @@ -175,7 +177,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
87592 return count;
87593 }
87594
87595 -static struct bin_attribute notes_attr = {
87596 +static bin_attribute_no_const notes_attr __read_only = {
87597 .attr = {
87598 .name = "notes",
87599 .mode = S_IRUGO,
87600 diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
87601 index d24e433..fa04fb8 100644
87602 --- a/kernel/locking/lockdep.c
87603 +++ b/kernel/locking/lockdep.c
87604 @@ -597,6 +597,10 @@ static int static_obj(void *obj)
87605 end = (unsigned long) &_end,
87606 addr = (unsigned long) obj;
87607
87608 +#ifdef CONFIG_PAX_KERNEXEC
87609 + start = ktla_ktva(start);
87610 +#endif
87611 +
87612 /*
87613 * static variable?
87614 */
87615 @@ -738,6 +742,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
87616 if (!static_obj(lock->key)) {
87617 debug_locks_off();
87618 printk("INFO: trying to register non-static key.\n");
87619 + printk("lock:%pS key:%pS.\n", lock, lock->key);
87620 printk("the code is fine but needs lockdep annotation.\n");
87621 printk("turning off the locking correctness validator.\n");
87622 dump_stack();
87623 @@ -3079,7 +3084,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
87624 if (!class)
87625 return 0;
87626 }
87627 - atomic_inc((atomic_t *)&class->ops);
87628 + atomic_long_inc_unchecked((atomic_long_unchecked_t *)&class->ops);
87629 if (very_verbose(class)) {
87630 printk("\nacquire class [%p] %s", class->key, class->name);
87631 if (class->name_version > 1)
87632 diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
87633 index ef43ac4..2720dfa 100644
87634 --- a/kernel/locking/lockdep_proc.c
87635 +++ b/kernel/locking/lockdep_proc.c
87636 @@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
87637 return 0;
87638 }
87639
87640 - seq_printf(m, "%p", class->key);
87641 + seq_printf(m, "%pK", class->key);
87642 #ifdef CONFIG_DEBUG_LOCKDEP
87643 seq_printf(m, " OPS:%8ld", class->ops);
87644 #endif
87645 @@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
87646
87647 list_for_each_entry(entry, &class->locks_after, entry) {
87648 if (entry->distance == 1) {
87649 - seq_printf(m, " -> [%p] ", entry->class->key);
87650 + seq_printf(m, " -> [%pK] ", entry->class->key);
87651 print_name(m, entry->class);
87652 seq_puts(m, "\n");
87653 }
87654 @@ -152,7 +152,7 @@ static int lc_show(struct seq_file *m, void *v)
87655 if (!class->key)
87656 continue;
87657
87658 - seq_printf(m, "[%p] ", class->key);
87659 + seq_printf(m, "[%pK] ", class->key);
87660 print_name(m, class);
87661 seq_puts(m, "\n");
87662 }
87663 @@ -496,7 +496,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
87664 if (!i)
87665 seq_line(m, '-', 40-namelen, namelen);
87666
87667 - snprintf(ip, sizeof(ip), "[<%p>]",
87668 + snprintf(ip, sizeof(ip), "[<%pK>]",
87669 (void *)class->contention_point[i]);
87670 seq_printf(m, "%40s %14lu %29s %pS\n",
87671 name, stats->contention_point[i],
87672 @@ -511,7 +511,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
87673 if (!i)
87674 seq_line(m, '-', 40-namelen, namelen);
87675
87676 - snprintf(ip, sizeof(ip), "[<%p>]",
87677 + snprintf(ip, sizeof(ip), "[<%pK>]",
87678 (void *)class->contending_point[i]);
87679 seq_printf(m, "%40s %14lu %29s %pS\n",
87680 name, stats->contending_point[i],
87681 diff --git a/kernel/locking/mcs_spinlock.c b/kernel/locking/mcs_spinlock.c
87682 index 838dc9e..760e158 100644
87683 --- a/kernel/locking/mcs_spinlock.c
87684 +++ b/kernel/locking/mcs_spinlock.c
87685 @@ -71,7 +71,7 @@ bool osq_lock(struct optimistic_spin_queue **lock)
87686 if (likely(prev == NULL))
87687 return true;
87688
87689 - ACCESS_ONCE(prev->next) = node;
87690 + ACCESS_ONCE_RW(prev->next) = node;
87691
87692 /*
87693 * Normally @prev is untouchable after the above store; because at that
87694 @@ -143,8 +143,8 @@ unqueue:
87695 * it will wait in Step-A.
87696 */
87697
87698 - ACCESS_ONCE(next->prev) = prev;
87699 - ACCESS_ONCE(prev->next) = next;
87700 + ACCESS_ONCE_RW(next->prev) = prev;
87701 + ACCESS_ONCE_RW(prev->next) = next;
87702
87703 return false;
87704 }
87705 @@ -165,13 +165,13 @@ void osq_unlock(struct optimistic_spin_queue **lock)
87706 */
87707 next = xchg(&node->next, NULL);
87708 if (next) {
87709 - ACCESS_ONCE(next->locked) = 1;
87710 + ACCESS_ONCE_RW(next->locked) = 1;
87711 return;
87712 }
87713
87714 next = osq_wait_next(lock, node, NULL);
87715 if (next)
87716 - ACCESS_ONCE(next->locked) = 1;
87717 + ACCESS_ONCE_RW(next->locked) = 1;
87718 }
87719
87720 #endif
87721 diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
87722 index a2dbac4..e02a34a 100644
87723 --- a/kernel/locking/mcs_spinlock.h
87724 +++ b/kernel/locking/mcs_spinlock.h
87725 @@ -81,7 +81,7 @@ void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
87726 */
87727 return;
87728 }
87729 - ACCESS_ONCE(prev->next) = node;
87730 + ACCESS_ONCE_RW(prev->next) = node;
87731
87732 /* Wait until the lock holder passes the lock down. */
87733 arch_mcs_spin_lock_contended(&node->locked);
87734 diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
87735 index 5cf6731..ce3bc5a 100644
87736 --- a/kernel/locking/mutex-debug.c
87737 +++ b/kernel/locking/mutex-debug.c
87738 @@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
87739 }
87740
87741 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
87742 - struct thread_info *ti)
87743 + struct task_struct *task)
87744 {
87745 SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
87746
87747 /* Mark the current thread as blocked on the lock: */
87748 - ti->task->blocked_on = waiter;
87749 + task->blocked_on = waiter;
87750 }
87751
87752 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
87753 - struct thread_info *ti)
87754 + struct task_struct *task)
87755 {
87756 DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
87757 - DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
87758 - DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
87759 - ti->task->blocked_on = NULL;
87760 + DEBUG_LOCKS_WARN_ON(waiter->task != task);
87761 + DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
87762 + task->blocked_on = NULL;
87763
87764 list_del_init(&waiter->list);
87765 waiter->task = NULL;
87766 diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
87767 index 0799fd3..d06ae3b 100644
87768 --- a/kernel/locking/mutex-debug.h
87769 +++ b/kernel/locking/mutex-debug.h
87770 @@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
87771 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
87772 extern void debug_mutex_add_waiter(struct mutex *lock,
87773 struct mutex_waiter *waiter,
87774 - struct thread_info *ti);
87775 + struct task_struct *task);
87776 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
87777 - struct thread_info *ti);
87778 + struct task_struct *task);
87779 extern void debug_mutex_unlock(struct mutex *lock);
87780 extern void debug_mutex_init(struct mutex *lock, const char *name,
87781 struct lock_class_key *key);
87782 diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
87783 index bc73d33..6f308aa 100644
87784 --- a/kernel/locking/mutex.c
87785 +++ b/kernel/locking/mutex.c
87786 @@ -490,7 +490,7 @@ slowpath:
87787 goto skip_wait;
87788
87789 debug_mutex_lock_common(lock, &waiter);
87790 - debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
87791 + debug_mutex_add_waiter(lock, &waiter, task);
87792
87793 /* add waiting tasks to the end of the waitqueue (FIFO): */
87794 list_add_tail(&waiter.list, &lock->wait_list);
87795 @@ -534,7 +534,7 @@ slowpath:
87796 schedule_preempt_disabled();
87797 spin_lock_mutex(&lock->wait_lock, flags);
87798 }
87799 - mutex_remove_waiter(lock, &waiter, current_thread_info());
87800 + mutex_remove_waiter(lock, &waiter, task);
87801 /* set it to 0 if there are no waiters left: */
87802 if (likely(list_empty(&lock->wait_list)))
87803 atomic_set(&lock->count, 0);
87804 @@ -571,7 +571,7 @@ skip_wait:
87805 return 0;
87806
87807 err:
87808 - mutex_remove_waiter(lock, &waiter, task_thread_info(task));
87809 + mutex_remove_waiter(lock, &waiter, task);
87810 spin_unlock_mutex(&lock->wait_lock, flags);
87811 debug_mutex_free_waiter(&waiter);
87812 mutex_release(&lock->dep_map, 1, ip);
87813 diff --git a/kernel/locking/rtmutex-tester.c b/kernel/locking/rtmutex-tester.c
87814 index 1d96dd0..994ff19 100644
87815 --- a/kernel/locking/rtmutex-tester.c
87816 +++ b/kernel/locking/rtmutex-tester.c
87817 @@ -22,7 +22,7 @@
87818 #define MAX_RT_TEST_MUTEXES 8
87819
87820 static spinlock_t rttest_lock;
87821 -static atomic_t rttest_event;
87822 +static atomic_unchecked_t rttest_event;
87823
87824 struct test_thread_data {
87825 int opcode;
87826 @@ -63,7 +63,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
87827
87828 case RTTEST_LOCKCONT:
87829 td->mutexes[td->opdata] = 1;
87830 - td->event = atomic_add_return(1, &rttest_event);
87831 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87832 return 0;
87833
87834 case RTTEST_RESET:
87835 @@ -76,7 +76,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
87836 return 0;
87837
87838 case RTTEST_RESETEVENT:
87839 - atomic_set(&rttest_event, 0);
87840 + atomic_set_unchecked(&rttest_event, 0);
87841 return 0;
87842
87843 default:
87844 @@ -93,9 +93,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
87845 return ret;
87846
87847 td->mutexes[id] = 1;
87848 - td->event = atomic_add_return(1, &rttest_event);
87849 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87850 rt_mutex_lock(&mutexes[id]);
87851 - td->event = atomic_add_return(1, &rttest_event);
87852 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87853 td->mutexes[id] = 4;
87854 return 0;
87855
87856 @@ -106,9 +106,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
87857 return ret;
87858
87859 td->mutexes[id] = 1;
87860 - td->event = atomic_add_return(1, &rttest_event);
87861 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87862 ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
87863 - td->event = atomic_add_return(1, &rttest_event);
87864 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87865 td->mutexes[id] = ret ? 0 : 4;
87866 return ret ? -EINTR : 0;
87867
87868 @@ -117,9 +117,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
87869 if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
87870 return ret;
87871
87872 - td->event = atomic_add_return(1, &rttest_event);
87873 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87874 rt_mutex_unlock(&mutexes[id]);
87875 - td->event = atomic_add_return(1, &rttest_event);
87876 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87877 td->mutexes[id] = 0;
87878 return 0;
87879
87880 @@ -166,7 +166,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
87881 break;
87882
87883 td->mutexes[dat] = 2;
87884 - td->event = atomic_add_return(1, &rttest_event);
87885 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87886 break;
87887
87888 default:
87889 @@ -186,7 +186,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
87890 return;
87891
87892 td->mutexes[dat] = 3;
87893 - td->event = atomic_add_return(1, &rttest_event);
87894 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87895 break;
87896
87897 case RTTEST_LOCKNOWAIT:
87898 @@ -198,7 +198,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
87899 return;
87900
87901 td->mutexes[dat] = 1;
87902 - td->event = atomic_add_return(1, &rttest_event);
87903 + td->event = atomic_add_return_unchecked(1, &rttest_event);
87904 return;
87905
87906 default:
87907 diff --git a/kernel/module.c b/kernel/module.c
87908 index 079c461..741f79c 100644
87909 --- a/kernel/module.c
87910 +++ b/kernel/module.c
87911 @@ -61,6 +61,7 @@
87912 #include <linux/pfn.h>
87913 #include <linux/bsearch.h>
87914 #include <linux/fips.h>
87915 +#include <linux/grsecurity.h>
87916 #include <uapi/linux/module.h>
87917 #include "module-internal.h"
87918
87919 @@ -157,7 +158,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
87920
87921 /* Bounds of module allocation, for speeding __module_address.
87922 * Protected by module_mutex. */
87923 -static unsigned long module_addr_min = -1UL, module_addr_max = 0;
87924 +static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
87925 +static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
87926
87927 int register_module_notifier(struct notifier_block * nb)
87928 {
87929 @@ -324,7 +326,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
87930 return true;
87931
87932 list_for_each_entry_rcu(mod, &modules, list) {
87933 - struct symsearch arr[] = {
87934 + struct symsearch modarr[] = {
87935 { mod->syms, mod->syms + mod->num_syms, mod->crcs,
87936 NOT_GPL_ONLY, false },
87937 { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
87938 @@ -349,7 +351,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
87939 if (mod->state == MODULE_STATE_UNFORMED)
87940 continue;
87941
87942 - if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
87943 + if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
87944 return true;
87945 }
87946 return false;
87947 @@ -489,7 +491,7 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
87948 if (!pcpusec->sh_size)
87949 return 0;
87950
87951 - if (align > PAGE_SIZE) {
87952 + if (align-1 >= PAGE_SIZE) {
87953 pr_warn("%s: per-cpu alignment %li > %li\n",
87954 mod->name, align, PAGE_SIZE);
87955 align = PAGE_SIZE;
87956 @@ -1061,7 +1063,7 @@ struct module_attribute module_uevent =
87957 static ssize_t show_coresize(struct module_attribute *mattr,
87958 struct module_kobject *mk, char *buffer)
87959 {
87960 - return sprintf(buffer, "%u\n", mk->mod->core_size);
87961 + return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
87962 }
87963
87964 static struct module_attribute modinfo_coresize =
87965 @@ -1070,7 +1072,7 @@ static struct module_attribute modinfo_coresize =
87966 static ssize_t show_initsize(struct module_attribute *mattr,
87967 struct module_kobject *mk, char *buffer)
87968 {
87969 - return sprintf(buffer, "%u\n", mk->mod->init_size);
87970 + return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw);
87971 }
87972
87973 static struct module_attribute modinfo_initsize =
87974 @@ -1162,12 +1164,29 @@ static int check_version(Elf_Shdr *sechdrs,
87975 goto bad_version;
87976 }
87977
87978 +#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
87979 + /*
87980 + * avoid potentially printing jibberish on attempted load
87981 + * of a module randomized with a different seed
87982 + */
87983 + pr_warn("no symbol version for %s\n", symname);
87984 +#else
87985 pr_warn("%s: no symbol version for %s\n", mod->name, symname);
87986 +#endif
87987 return 0;
87988
87989 bad_version:
87990 +#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
87991 + /*
87992 + * avoid potentially printing jibberish on attempted load
87993 + * of a module randomized with a different seed
87994 + */
87995 + printk("attempted module disagrees about version of symbol %s\n",
87996 + symname);
87997 +#else
87998 printk("%s: disagrees about version of symbol %s\n",
87999 mod->name, symname);
88000 +#endif
88001 return 0;
88002 }
88003
88004 @@ -1283,7 +1302,7 @@ resolve_symbol_wait(struct module *mod,
88005 */
88006 #ifdef CONFIG_SYSFS
88007
88008 -#ifdef CONFIG_KALLSYMS
88009 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
88010 static inline bool sect_empty(const Elf_Shdr *sect)
88011 {
88012 return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
88013 @@ -1423,7 +1442,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
88014 {
88015 unsigned int notes, loaded, i;
88016 struct module_notes_attrs *notes_attrs;
88017 - struct bin_attribute *nattr;
88018 + bin_attribute_no_const *nattr;
88019
88020 /* failed to create section attributes, so can't create notes */
88021 if (!mod->sect_attrs)
88022 @@ -1535,7 +1554,7 @@ static void del_usage_links(struct module *mod)
88023 static int module_add_modinfo_attrs(struct module *mod)
88024 {
88025 struct module_attribute *attr;
88026 - struct module_attribute *temp_attr;
88027 + module_attribute_no_const *temp_attr;
88028 int error = 0;
88029 int i;
88030
88031 @@ -1756,21 +1775,21 @@ static void set_section_ro_nx(void *base,
88032
88033 static void unset_module_core_ro_nx(struct module *mod)
88034 {
88035 - set_page_attributes(mod->module_core + mod->core_text_size,
88036 - mod->module_core + mod->core_size,
88037 + set_page_attributes(mod->module_core_rw,
88038 + mod->module_core_rw + mod->core_size_rw,
88039 set_memory_x);
88040 - set_page_attributes(mod->module_core,
88041 - mod->module_core + mod->core_ro_size,
88042 + set_page_attributes(mod->module_core_rx,
88043 + mod->module_core_rx + mod->core_size_rx,
88044 set_memory_rw);
88045 }
88046
88047 static void unset_module_init_ro_nx(struct module *mod)
88048 {
88049 - set_page_attributes(mod->module_init + mod->init_text_size,
88050 - mod->module_init + mod->init_size,
88051 + set_page_attributes(mod->module_init_rw,
88052 + mod->module_init_rw + mod->init_size_rw,
88053 set_memory_x);
88054 - set_page_attributes(mod->module_init,
88055 - mod->module_init + mod->init_ro_size,
88056 + set_page_attributes(mod->module_init_rx,
88057 + mod->module_init_rx + mod->init_size_rx,
88058 set_memory_rw);
88059 }
88060
88061 @@ -1783,14 +1802,14 @@ void set_all_modules_text_rw(void)
88062 list_for_each_entry_rcu(mod, &modules, list) {
88063 if (mod->state == MODULE_STATE_UNFORMED)
88064 continue;
88065 - if ((mod->module_core) && (mod->core_text_size)) {
88066 - set_page_attributes(mod->module_core,
88067 - mod->module_core + mod->core_text_size,
88068 + if ((mod->module_core_rx) && (mod->core_size_rx)) {
88069 + set_page_attributes(mod->module_core_rx,
88070 + mod->module_core_rx + mod->core_size_rx,
88071 set_memory_rw);
88072 }
88073 - if ((mod->module_init) && (mod->init_text_size)) {
88074 - set_page_attributes(mod->module_init,
88075 - mod->module_init + mod->init_text_size,
88076 + if ((mod->module_init_rx) && (mod->init_size_rx)) {
88077 + set_page_attributes(mod->module_init_rx,
88078 + mod->module_init_rx + mod->init_size_rx,
88079 set_memory_rw);
88080 }
88081 }
88082 @@ -1806,14 +1825,14 @@ void set_all_modules_text_ro(void)
88083 list_for_each_entry_rcu(mod, &modules, list) {
88084 if (mod->state == MODULE_STATE_UNFORMED)
88085 continue;
88086 - if ((mod->module_core) && (mod->core_text_size)) {
88087 - set_page_attributes(mod->module_core,
88088 - mod->module_core + mod->core_text_size,
88089 + if ((mod->module_core_rx) && (mod->core_size_rx)) {
88090 + set_page_attributes(mod->module_core_rx,
88091 + mod->module_core_rx + mod->core_size_rx,
88092 set_memory_ro);
88093 }
88094 - if ((mod->module_init) && (mod->init_text_size)) {
88095 - set_page_attributes(mod->module_init,
88096 - mod->module_init + mod->init_text_size,
88097 + if ((mod->module_init_rx) && (mod->init_size_rx)) {
88098 + set_page_attributes(mod->module_init_rx,
88099 + mod->module_init_rx + mod->init_size_rx,
88100 set_memory_ro);
88101 }
88102 }
88103 @@ -1864,16 +1883,19 @@ static void free_module(struct module *mod)
88104
88105 /* This may be NULL, but that's OK */
88106 unset_module_init_ro_nx(mod);
88107 - module_free(mod, mod->module_init);
88108 + module_free(mod, mod->module_init_rw);
88109 + module_free_exec(mod, mod->module_init_rx);
88110 kfree(mod->args);
88111 percpu_modfree(mod);
88112
88113 /* Free lock-classes: */
88114 - lockdep_free_key_range(mod->module_core, mod->core_size);
88115 + lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
88116 + lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
88117
88118 /* Finally, free the core (containing the module structure) */
88119 unset_module_core_ro_nx(mod);
88120 - module_free(mod, mod->module_core);
88121 + module_free_exec(mod, mod->module_core_rx);
88122 + module_free(mod, mod->module_core_rw);
88123
88124 #ifdef CONFIG_MPU
88125 update_protections(current->mm);
88126 @@ -1942,9 +1964,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
88127 int ret = 0;
88128 const struct kernel_symbol *ksym;
88129
88130 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
88131 + int is_fs_load = 0;
88132 + int register_filesystem_found = 0;
88133 + char *p;
88134 +
88135 + p = strstr(mod->args, "grsec_modharden_fs");
88136 + if (p) {
88137 + char *endptr = p + sizeof("grsec_modharden_fs") - 1;
88138 + /* copy \0 as well */
88139 + memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
88140 + is_fs_load = 1;
88141 + }
88142 +#endif
88143 +
88144 for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
88145 const char *name = info->strtab + sym[i].st_name;
88146
88147 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
88148 + /* it's a real shame this will never get ripped and copied
88149 + upstream! ;(
88150 + */
88151 + if (is_fs_load && !strcmp(name, "register_filesystem"))
88152 + register_filesystem_found = 1;
88153 +#endif
88154 +
88155 switch (sym[i].st_shndx) {
88156 case SHN_COMMON:
88157 /* Ignore common symbols */
88158 @@ -1969,7 +2013,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
88159 ksym = resolve_symbol_wait(mod, info, name);
88160 /* Ok if resolved. */
88161 if (ksym && !IS_ERR(ksym)) {
88162 + pax_open_kernel();
88163 sym[i].st_value = ksym->value;
88164 + pax_close_kernel();
88165 break;
88166 }
88167
88168 @@ -1988,11 +2034,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
88169 secbase = (unsigned long)mod_percpu(mod);
88170 else
88171 secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
88172 + pax_open_kernel();
88173 sym[i].st_value += secbase;
88174 + pax_close_kernel();
88175 break;
88176 }
88177 }
88178
88179 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
88180 + if (is_fs_load && !register_filesystem_found) {
88181 + printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
88182 + ret = -EPERM;
88183 + }
88184 +#endif
88185 +
88186 return ret;
88187 }
88188
88189 @@ -2076,22 +2131,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
88190 || s->sh_entsize != ~0UL
88191 || strstarts(sname, ".init"))
88192 continue;
88193 - s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
88194 + if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
88195 + s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
88196 + else
88197 + s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
88198 pr_debug("\t%s\n", sname);
88199 }
88200 - switch (m) {
88201 - case 0: /* executable */
88202 - mod->core_size = debug_align(mod->core_size);
88203 - mod->core_text_size = mod->core_size;
88204 - break;
88205 - case 1: /* RO: text and ro-data */
88206 - mod->core_size = debug_align(mod->core_size);
88207 - mod->core_ro_size = mod->core_size;
88208 - break;
88209 - case 3: /* whole core */
88210 - mod->core_size = debug_align(mod->core_size);
88211 - break;
88212 - }
88213 }
88214
88215 pr_debug("Init section allocation order:\n");
88216 @@ -2105,23 +2150,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
88217 || s->sh_entsize != ~0UL
88218 || !strstarts(sname, ".init"))
88219 continue;
88220 - s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
88221 - | INIT_OFFSET_MASK);
88222 + if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
88223 + s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
88224 + else
88225 + s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
88226 + s->sh_entsize |= INIT_OFFSET_MASK;
88227 pr_debug("\t%s\n", sname);
88228 }
88229 - switch (m) {
88230 - case 0: /* executable */
88231 - mod->init_size = debug_align(mod->init_size);
88232 - mod->init_text_size = mod->init_size;
88233 - break;
88234 - case 1: /* RO: text and ro-data */
88235 - mod->init_size = debug_align(mod->init_size);
88236 - mod->init_ro_size = mod->init_size;
88237 - break;
88238 - case 3: /* whole init */
88239 - mod->init_size = debug_align(mod->init_size);
88240 - break;
88241 - }
88242 }
88243 }
88244
88245 @@ -2294,7 +2329,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
88246
88247 /* Put symbol section at end of init part of module. */
88248 symsect->sh_flags |= SHF_ALLOC;
88249 - symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
88250 + symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
88251 info->index.sym) | INIT_OFFSET_MASK;
88252 pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
88253
88254 @@ -2311,13 +2346,13 @@ static void layout_symtab(struct module *mod, struct load_info *info)
88255 }
88256
88257 /* Append room for core symbols at end of core part. */
88258 - info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
88259 - info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
88260 - mod->core_size += strtab_size;
88261 + info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
88262 + info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
88263 + mod->core_size_rx += strtab_size;
88264
88265 /* Put string table section at end of init part of module. */
88266 strsect->sh_flags |= SHF_ALLOC;
88267 - strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
88268 + strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
88269 info->index.str) | INIT_OFFSET_MASK;
88270 pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
88271 }
88272 @@ -2335,12 +2370,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
88273 /* Make sure we get permanent strtab: don't use info->strtab. */
88274 mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
88275
88276 + pax_open_kernel();
88277 +
88278 /* Set types up while we still have access to sections. */
88279 for (i = 0; i < mod->num_symtab; i++)
88280 mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
88281
88282 - mod->core_symtab = dst = mod->module_core + info->symoffs;
88283 - mod->core_strtab = s = mod->module_core + info->stroffs;
88284 + mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
88285 + mod->core_strtab = s = mod->module_core_rx + info->stroffs;
88286 src = mod->symtab;
88287 for (ndst = i = 0; i < mod->num_symtab; i++) {
88288 if (i == 0 ||
88289 @@ -2352,6 +2389,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
88290 }
88291 }
88292 mod->core_num_syms = ndst;
88293 +
88294 + pax_close_kernel();
88295 }
88296 #else
88297 static inline void layout_symtab(struct module *mod, struct load_info *info)
88298 @@ -2385,17 +2424,33 @@ void * __weak module_alloc(unsigned long size)
88299 return vmalloc_exec(size);
88300 }
88301
88302 -static void *module_alloc_update_bounds(unsigned long size)
88303 +static void *module_alloc_update_bounds_rw(unsigned long size)
88304 {
88305 void *ret = module_alloc(size);
88306
88307 if (ret) {
88308 mutex_lock(&module_mutex);
88309 /* Update module bounds. */
88310 - if ((unsigned long)ret < module_addr_min)
88311 - module_addr_min = (unsigned long)ret;
88312 - if ((unsigned long)ret + size > module_addr_max)
88313 - module_addr_max = (unsigned long)ret + size;
88314 + if ((unsigned long)ret < module_addr_min_rw)
88315 + module_addr_min_rw = (unsigned long)ret;
88316 + if ((unsigned long)ret + size > module_addr_max_rw)
88317 + module_addr_max_rw = (unsigned long)ret + size;
88318 + mutex_unlock(&module_mutex);
88319 + }
88320 + return ret;
88321 +}
88322 +
88323 +static void *module_alloc_update_bounds_rx(unsigned long size)
88324 +{
88325 + void *ret = module_alloc_exec(size);
88326 +
88327 + if (ret) {
88328 + mutex_lock(&module_mutex);
88329 + /* Update module bounds. */
88330 + if ((unsigned long)ret < module_addr_min_rx)
88331 + module_addr_min_rx = (unsigned long)ret;
88332 + if ((unsigned long)ret + size > module_addr_max_rx)
88333 + module_addr_max_rx = (unsigned long)ret + size;
88334 mutex_unlock(&module_mutex);
88335 }
88336 return ret;
88337 @@ -2652,7 +2707,15 @@ static struct module *setup_load_info(struct load_info *info, int flags)
88338 mod = (void *)info->sechdrs[info->index.mod].sh_addr;
88339
88340 if (info->index.sym == 0) {
88341 +#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
88342 + /*
88343 + * avoid potentially printing jibberish on attempted load
88344 + * of a module randomized with a different seed
88345 + */
88346 + pr_warn("module has no symbols (stripped?)\n");
88347 +#else
88348 pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
88349 +#endif
88350 return ERR_PTR(-ENOEXEC);
88351 }
88352
88353 @@ -2668,8 +2731,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
88354 static int check_modinfo(struct module *mod, struct load_info *info, int flags)
88355 {
88356 const char *modmagic = get_modinfo(info, "vermagic");
88357 + const char *license = get_modinfo(info, "license");
88358 int err;
88359
88360 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
88361 + if (!license || !license_is_gpl_compatible(license))
88362 + return -ENOEXEC;
88363 +#endif
88364 +
88365 if (flags & MODULE_INIT_IGNORE_VERMAGIC)
88366 modmagic = NULL;
88367
88368 @@ -2694,7 +2763,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
88369 }
88370
88371 /* Set up license info based on the info section */
88372 - set_license(mod, get_modinfo(info, "license"));
88373 + set_license(mod, license);
88374
88375 return 0;
88376 }
88377 @@ -2788,7 +2857,7 @@ static int move_module(struct module *mod, struct load_info *info)
88378 void *ptr;
88379
88380 /* Do the allocs. */
88381 - ptr = module_alloc_update_bounds(mod->core_size);
88382 + ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
88383 /*
88384 * The pointer to this block is stored in the module structure
88385 * which is inside the block. Just mark it as not being a
88386 @@ -2798,11 +2867,11 @@ static int move_module(struct module *mod, struct load_info *info)
88387 if (!ptr)
88388 return -ENOMEM;
88389
88390 - memset(ptr, 0, mod->core_size);
88391 - mod->module_core = ptr;
88392 + memset(ptr, 0, mod->core_size_rw);
88393 + mod->module_core_rw = ptr;
88394
88395 - if (mod->init_size) {
88396 - ptr = module_alloc_update_bounds(mod->init_size);
88397 + if (mod->init_size_rw) {
88398 + ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
88399 /*
88400 * The pointer to this block is stored in the module structure
88401 * which is inside the block. This block doesn't need to be
88402 @@ -2811,13 +2880,45 @@ static int move_module(struct module *mod, struct load_info *info)
88403 */
88404 kmemleak_ignore(ptr);
88405 if (!ptr) {
88406 - module_free(mod, mod->module_core);
88407 + module_free(mod, mod->module_core_rw);
88408 return -ENOMEM;
88409 }
88410 - memset(ptr, 0, mod->init_size);
88411 - mod->module_init = ptr;
88412 + memset(ptr, 0, mod->init_size_rw);
88413 + mod->module_init_rw = ptr;
88414 } else
88415 - mod->module_init = NULL;
88416 + mod->module_init_rw = NULL;
88417 +
88418 + ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
88419 + kmemleak_not_leak(ptr);
88420 + if (!ptr) {
88421 + if (mod->module_init_rw)
88422 + module_free(mod, mod->module_init_rw);
88423 + module_free(mod, mod->module_core_rw);
88424 + return -ENOMEM;
88425 + }
88426 +
88427 + pax_open_kernel();
88428 + memset(ptr, 0, mod->core_size_rx);
88429 + pax_close_kernel();
88430 + mod->module_core_rx = ptr;
88431 +
88432 + if (mod->init_size_rx) {
88433 + ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
88434 + kmemleak_ignore(ptr);
88435 + if (!ptr && mod->init_size_rx) {
88436 + module_free_exec(mod, mod->module_core_rx);
88437 + if (mod->module_init_rw)
88438 + module_free(mod, mod->module_init_rw);
88439 + module_free(mod, mod->module_core_rw);
88440 + return -ENOMEM;
88441 + }
88442 +
88443 + pax_open_kernel();
88444 + memset(ptr, 0, mod->init_size_rx);
88445 + pax_close_kernel();
88446 + mod->module_init_rx = ptr;
88447 + } else
88448 + mod->module_init_rx = NULL;
88449
88450 /* Transfer each section which specifies SHF_ALLOC */
88451 pr_debug("final section addresses:\n");
88452 @@ -2828,16 +2929,45 @@ static int move_module(struct module *mod, struct load_info *info)
88453 if (!(shdr->sh_flags & SHF_ALLOC))
88454 continue;
88455
88456 - if (shdr->sh_entsize & INIT_OFFSET_MASK)
88457 - dest = mod->module_init
88458 - + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
88459 - else
88460 - dest = mod->module_core + shdr->sh_entsize;
88461 + if (shdr->sh_entsize & INIT_OFFSET_MASK) {
88462 + if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
88463 + dest = mod->module_init_rw
88464 + + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
88465 + else
88466 + dest = mod->module_init_rx
88467 + + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
88468 + } else {
88469 + if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
88470 + dest = mod->module_core_rw + shdr->sh_entsize;
88471 + else
88472 + dest = mod->module_core_rx + shdr->sh_entsize;
88473 + }
88474 +
88475 + if (shdr->sh_type != SHT_NOBITS) {
88476 +
88477 +#ifdef CONFIG_PAX_KERNEXEC
88478 +#ifdef CONFIG_X86_64
88479 + if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
88480 + set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
88481 +#endif
88482 + if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
88483 + pax_open_kernel();
88484 + memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
88485 + pax_close_kernel();
88486 + } else
88487 +#endif
88488
88489 - if (shdr->sh_type != SHT_NOBITS)
88490 memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
88491 + }
88492 /* Update sh_addr to point to copy in image. */
88493 - shdr->sh_addr = (unsigned long)dest;
88494 +
88495 +#ifdef CONFIG_PAX_KERNEXEC
88496 + if (shdr->sh_flags & SHF_EXECINSTR)
88497 + shdr->sh_addr = ktva_ktla((unsigned long)dest);
88498 + else
88499 +#endif
88500 +
88501 + shdr->sh_addr = (unsigned long)dest;
88502 pr_debug("\t0x%lx %s\n",
88503 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
88504 }
88505 @@ -2894,12 +3024,12 @@ static void flush_module_icache(const struct module *mod)
88506 * Do it before processing of module parameters, so the module
88507 * can provide parameter accessor functions of its own.
88508 */
88509 - if (mod->module_init)
88510 - flush_icache_range((unsigned long)mod->module_init,
88511 - (unsigned long)mod->module_init
88512 - + mod->init_size);
88513 - flush_icache_range((unsigned long)mod->module_core,
88514 - (unsigned long)mod->module_core + mod->core_size);
88515 + if (mod->module_init_rx)
88516 + flush_icache_range((unsigned long)mod->module_init_rx,
88517 + (unsigned long)mod->module_init_rx
88518 + + mod->init_size_rx);
88519 + flush_icache_range((unsigned long)mod->module_core_rx,
88520 + (unsigned long)mod->module_core_rx + mod->core_size_rx);
88521
88522 set_fs(old_fs);
88523 }
88524 @@ -2956,8 +3086,10 @@ static struct module *layout_and_allocate(struct load_info *info, int flags)
88525 static void module_deallocate(struct module *mod, struct load_info *info)
88526 {
88527 percpu_modfree(mod);
88528 - module_free(mod, mod->module_init);
88529 - module_free(mod, mod->module_core);
88530 + module_free_exec(mod, mod->module_init_rx);
88531 + module_free_exec(mod, mod->module_core_rx);
88532 + module_free(mod, mod->module_init_rw);
88533 + module_free(mod, mod->module_core_rw);
88534 }
88535
88536 int __weak module_finalize(const Elf_Ehdr *hdr,
88537 @@ -2970,7 +3102,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
88538 static int post_relocation(struct module *mod, const struct load_info *info)
88539 {
88540 /* Sort exception table now relocations are done. */
88541 + pax_open_kernel();
88542 sort_extable(mod->extable, mod->extable + mod->num_exentries);
88543 + pax_close_kernel();
88544
88545 /* Copy relocated percpu area over. */
88546 percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
88547 @@ -3024,16 +3158,16 @@ static int do_init_module(struct module *mod)
88548 MODULE_STATE_COMING, mod);
88549
88550 /* Set RO and NX regions for core */
88551 - set_section_ro_nx(mod->module_core,
88552 - mod->core_text_size,
88553 - mod->core_ro_size,
88554 - mod->core_size);
88555 + set_section_ro_nx(mod->module_core_rx,
88556 + mod->core_size_rx,
88557 + mod->core_size_rx,
88558 + mod->core_size_rx);
88559
88560 /* Set RO and NX regions for init */
88561 - set_section_ro_nx(mod->module_init,
88562 - mod->init_text_size,
88563 - mod->init_ro_size,
88564 - mod->init_size);
88565 + set_section_ro_nx(mod->module_init_rx,
88566 + mod->init_size_rx,
88567 + mod->init_size_rx,
88568 + mod->init_size_rx);
88569
88570 do_mod_ctors(mod);
88571 /* Start the module */
88572 @@ -3094,11 +3228,12 @@ static int do_init_module(struct module *mod)
88573 mod->strtab = mod->core_strtab;
88574 #endif
88575 unset_module_init_ro_nx(mod);
88576 - module_free(mod, mod->module_init);
88577 - mod->module_init = NULL;
88578 - mod->init_size = 0;
88579 - mod->init_ro_size = 0;
88580 - mod->init_text_size = 0;
88581 + module_free(mod, mod->module_init_rw);
88582 + module_free_exec(mod, mod->module_init_rx);
88583 + mod->module_init_rw = NULL;
88584 + mod->module_init_rx = NULL;
88585 + mod->init_size_rw = 0;
88586 + mod->init_size_rx = 0;
88587 mutex_unlock(&module_mutex);
88588 wake_up_all(&module_wq);
88589
88590 @@ -3241,9 +3376,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
88591 if (err)
88592 goto free_unload;
88593
88594 + /* Now copy in args */
88595 + mod->args = strndup_user(uargs, ~0UL >> 1);
88596 + if (IS_ERR(mod->args)) {
88597 + err = PTR_ERR(mod->args);
88598 + goto free_unload;
88599 + }
88600 +
88601 /* Set up MODINFO_ATTR fields */
88602 setup_modinfo(mod, info);
88603
88604 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
88605 + {
88606 + char *p, *p2;
88607 +
88608 + if (strstr(mod->args, "grsec_modharden_netdev")) {
88609 + printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name);
88610 + err = -EPERM;
88611 + goto free_modinfo;
88612 + } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
88613 + p += sizeof("grsec_modharden_normal") - 1;
88614 + p2 = strstr(p, "_");
88615 + if (p2) {
88616 + *p2 = '\0';
88617 + printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
88618 + *p2 = '_';
88619 + }
88620 + err = -EPERM;
88621 + goto free_modinfo;
88622 + }
88623 + }
88624 +#endif
88625 +
88626 /* Fix up syms, so that st_value is a pointer to location. */
88627 err = simplify_symbols(mod, info);
88628 if (err < 0)
88629 @@ -3259,13 +3423,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
88630
88631 flush_module_icache(mod);
88632
88633 - /* Now copy in args */
88634 - mod->args = strndup_user(uargs, ~0UL >> 1);
88635 - if (IS_ERR(mod->args)) {
88636 - err = PTR_ERR(mod->args);
88637 - goto free_arch_cleanup;
88638 - }
88639 -
88640 dynamic_debug_setup(info->debug, info->num_debug);
88641
88642 /* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
88643 @@ -3303,11 +3460,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
88644 ddebug_cleanup:
88645 dynamic_debug_remove(info->debug);
88646 synchronize_sched();
88647 - kfree(mod->args);
88648 - free_arch_cleanup:
88649 module_arch_cleanup(mod);
88650 free_modinfo:
88651 free_modinfo(mod);
88652 + kfree(mod->args);
88653 free_unload:
88654 module_unload_free(mod);
88655 unlink_mod:
88656 @@ -3390,10 +3546,16 @@ static const char *get_ksymbol(struct module *mod,
88657 unsigned long nextval;
88658
88659 /* At worse, next value is at end of module */
88660 - if (within_module_init(addr, mod))
88661 - nextval = (unsigned long)mod->module_init+mod->init_text_size;
88662 + if (within_module_init_rx(addr, mod))
88663 + nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
88664 + else if (within_module_init_rw(addr, mod))
88665 + nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
88666 + else if (within_module_core_rx(addr, mod))
88667 + nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
88668 + else if (within_module_core_rw(addr, mod))
88669 + nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
88670 else
88671 - nextval = (unsigned long)mod->module_core+mod->core_text_size;
88672 + return NULL;
88673
88674 /* Scan for closest preceding symbol, and next symbol. (ELF
88675 starts real symbols at 1). */
88676 @@ -3644,7 +3806,7 @@ static int m_show(struct seq_file *m, void *p)
88677 return 0;
88678
88679 seq_printf(m, "%s %u",
88680 - mod->name, mod->init_size + mod->core_size);
88681 + mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
88682 print_unload_info(m, mod);
88683
88684 /* Informative for users. */
88685 @@ -3653,7 +3815,7 @@ static int m_show(struct seq_file *m, void *p)
88686 mod->state == MODULE_STATE_COMING ? "Loading":
88687 "Live");
88688 /* Used by oprofile and other similar tools. */
88689 - seq_printf(m, " 0x%pK", mod->module_core);
88690 + seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
88691
88692 /* Taints info */
88693 if (mod->taints)
88694 @@ -3689,7 +3851,17 @@ static const struct file_operations proc_modules_operations = {
88695
88696 static int __init proc_modules_init(void)
88697 {
88698 +#ifndef CONFIG_GRKERNSEC_HIDESYM
88699 +#ifdef CONFIG_GRKERNSEC_PROC_USER
88700 + proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
88701 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
88702 + proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
88703 +#else
88704 proc_create("modules", 0, NULL, &proc_modules_operations);
88705 +#endif
88706 +#else
88707 + proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
88708 +#endif
88709 return 0;
88710 }
88711 module_init(proc_modules_init);
88712 @@ -3750,14 +3922,14 @@ struct module *__module_address(unsigned long addr)
88713 {
88714 struct module *mod;
88715
88716 - if (addr < module_addr_min || addr > module_addr_max)
88717 + if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
88718 + (addr < module_addr_min_rw || addr > module_addr_max_rw))
88719 return NULL;
88720
88721 list_for_each_entry_rcu(mod, &modules, list) {
88722 if (mod->state == MODULE_STATE_UNFORMED)
88723 continue;
88724 - if (within_module_core(addr, mod)
88725 - || within_module_init(addr, mod))
88726 + if (within_module_init(addr, mod) || within_module_core(addr, mod))
88727 return mod;
88728 }
88729 return NULL;
88730 @@ -3792,11 +3964,20 @@ bool is_module_text_address(unsigned long addr)
88731 */
88732 struct module *__module_text_address(unsigned long addr)
88733 {
88734 - struct module *mod = __module_address(addr);
88735 + struct module *mod;
88736 +
88737 +#ifdef CONFIG_X86_32
88738 + addr = ktla_ktva(addr);
88739 +#endif
88740 +
88741 + if (addr < module_addr_min_rx || addr > module_addr_max_rx)
88742 + return NULL;
88743 +
88744 + mod = __module_address(addr);
88745 +
88746 if (mod) {
88747 /* Make sure it's within the text section. */
88748 - if (!within(addr, mod->module_init, mod->init_text_size)
88749 - && !within(addr, mod->module_core, mod->core_text_size))
88750 + if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
88751 mod = NULL;
88752 }
88753 return mod;
88754 diff --git a/kernel/notifier.c b/kernel/notifier.c
88755 index db4c8b0..ad011c5 100644
88756 --- a/kernel/notifier.c
88757 +++ b/kernel/notifier.c
88758 @@ -5,6 +5,7 @@
88759 #include <linux/rcupdate.h>
88760 #include <linux/vmalloc.h>
88761 #include <linux/reboot.h>
88762 +#include <linux/mm.h>
88763
88764 /*
88765 * Notifier list for kernel code which wants to be called
88766 @@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
88767 while ((*nl) != NULL) {
88768 if (n->priority > (*nl)->priority)
88769 break;
88770 - nl = &((*nl)->next);
88771 + nl = (struct notifier_block **)&((*nl)->next);
88772 }
88773 - n->next = *nl;
88774 + pax_open_kernel();
88775 + *(const void **)&n->next = *nl;
88776 rcu_assign_pointer(*nl, n);
88777 + pax_close_kernel();
88778 return 0;
88779 }
88780
88781 @@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
88782 return 0;
88783 if (n->priority > (*nl)->priority)
88784 break;
88785 - nl = &((*nl)->next);
88786 + nl = (struct notifier_block **)&((*nl)->next);
88787 }
88788 - n->next = *nl;
88789 + pax_open_kernel();
88790 + *(const void **)&n->next = *nl;
88791 rcu_assign_pointer(*nl, n);
88792 + pax_close_kernel();
88793 return 0;
88794 }
88795
88796 @@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
88797 {
88798 while ((*nl) != NULL) {
88799 if ((*nl) == n) {
88800 + pax_open_kernel();
88801 rcu_assign_pointer(*nl, n->next);
88802 + pax_close_kernel();
88803 return 0;
88804 }
88805 - nl = &((*nl)->next);
88806 + nl = (struct notifier_block **)&((*nl)->next);
88807 }
88808 return -ENOENT;
88809 }
88810 diff --git a/kernel/padata.c b/kernel/padata.c
88811 index 161402f..598814c 100644
88812 --- a/kernel/padata.c
88813 +++ b/kernel/padata.c
88814 @@ -54,7 +54,7 @@ static int padata_cpu_hash(struct parallel_data *pd)
88815 * seq_nr mod. number of cpus in use.
88816 */
88817
88818 - seq_nr = atomic_inc_return(&pd->seq_nr);
88819 + seq_nr = atomic_inc_return_unchecked(&pd->seq_nr);
88820 cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
88821
88822 return padata_index_to_cpu(pd, cpu_index);
88823 @@ -428,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
88824 padata_init_pqueues(pd);
88825 padata_init_squeues(pd);
88826 setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
88827 - atomic_set(&pd->seq_nr, -1);
88828 + atomic_set_unchecked(&pd->seq_nr, -1);
88829 atomic_set(&pd->reorder_objects, 0);
88830 atomic_set(&pd->refcnt, 0);
88831 pd->pinst = pinst;
88832 diff --git a/kernel/panic.c b/kernel/panic.c
88833 index d02fa9f..9faec0a 100644
88834 --- a/kernel/panic.c
88835 +++ b/kernel/panic.c
88836 @@ -52,7 +52,7 @@ EXPORT_SYMBOL(panic_blink);
88837 /*
88838 * Stop ourself in panic -- architecture code may override this
88839 */
88840 -void __weak panic_smp_self_stop(void)
88841 +void __weak __noreturn panic_smp_self_stop(void)
88842 {
88843 while (1)
88844 cpu_relax();
88845 @@ -408,7 +408,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
88846 disable_trace_on_warning();
88847
88848 pr_warn("------------[ cut here ]------------\n");
88849 - pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS()\n",
88850 + pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pA()\n",
88851 raw_smp_processor_id(), current->pid, file, line, caller);
88852
88853 if (args)
88854 @@ -462,7 +462,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
88855 */
88856 __visible void __stack_chk_fail(void)
88857 {
88858 - panic("stack-protector: Kernel stack is corrupted in: %p\n",
88859 + dump_stack();
88860 + panic("stack-protector: Kernel stack is corrupted in: %pA\n",
88861 __builtin_return_address(0));
88862 }
88863 EXPORT_SYMBOL(__stack_chk_fail);
88864 diff --git a/kernel/pid.c b/kernel/pid.c
88865 index 9b9a266..c20ef80 100644
88866 --- a/kernel/pid.c
88867 +++ b/kernel/pid.c
88868 @@ -33,6 +33,7 @@
88869 #include <linux/rculist.h>
88870 #include <linux/bootmem.h>
88871 #include <linux/hash.h>
88872 +#include <linux/security.h>
88873 #include <linux/pid_namespace.h>
88874 #include <linux/init_task.h>
88875 #include <linux/syscalls.h>
88876 @@ -47,7 +48,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
88877
88878 int pid_max = PID_MAX_DEFAULT;
88879
88880 -#define RESERVED_PIDS 300
88881 +#define RESERVED_PIDS 500
88882
88883 int pid_max_min = RESERVED_PIDS + 1;
88884 int pid_max_max = PID_MAX_LIMIT;
88885 @@ -445,10 +446,18 @@ EXPORT_SYMBOL(pid_task);
88886 */
88887 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
88888 {
88889 + struct task_struct *task;
88890 +
88891 rcu_lockdep_assert(rcu_read_lock_held(),
88892 "find_task_by_pid_ns() needs rcu_read_lock()"
88893 " protection");
88894 - return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
88895 +
88896 + task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
88897 +
88898 + if (gr_pid_is_chrooted(task))
88899 + return NULL;
88900 +
88901 + return task;
88902 }
88903
88904 struct task_struct *find_task_by_vpid(pid_t vnr)
88905 @@ -456,6 +465,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
88906 return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
88907 }
88908
88909 +struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
88910 +{
88911 + rcu_lockdep_assert(rcu_read_lock_held(),
88912 + "find_task_by_pid_ns() needs rcu_read_lock()"
88913 + " protection");
88914 + return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
88915 +}
88916 +
88917 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
88918 {
88919 struct pid *pid;
88920 diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
88921 index db95d8e..a0ca23f 100644
88922 --- a/kernel/pid_namespace.c
88923 +++ b/kernel/pid_namespace.c
88924 @@ -253,7 +253,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
88925 void __user *buffer, size_t *lenp, loff_t *ppos)
88926 {
88927 struct pid_namespace *pid_ns = task_active_pid_ns(current);
88928 - struct ctl_table tmp = *table;
88929 + ctl_table_no_const tmp = *table;
88930
88931 if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
88932 return -EPERM;
88933 diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
88934 index 3b89464..5e38379 100644
88935 --- a/kernel/posix-cpu-timers.c
88936 +++ b/kernel/posix-cpu-timers.c
88937 @@ -1464,14 +1464,14 @@ struct k_clock clock_posix_cpu = {
88938
88939 static __init int init_posix_cpu_timers(void)
88940 {
88941 - struct k_clock process = {
88942 + static struct k_clock process = {
88943 .clock_getres = process_cpu_clock_getres,
88944 .clock_get = process_cpu_clock_get,
88945 .timer_create = process_cpu_timer_create,
88946 .nsleep = process_cpu_nsleep,
88947 .nsleep_restart = process_cpu_nsleep_restart,
88948 };
88949 - struct k_clock thread = {
88950 + static struct k_clock thread = {
88951 .clock_getres = thread_cpu_clock_getres,
88952 .clock_get = thread_cpu_clock_get,
88953 .timer_create = thread_cpu_timer_create,
88954 diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
88955 index 424c2d4..679242f 100644
88956 --- a/kernel/posix-timers.c
88957 +++ b/kernel/posix-timers.c
88958 @@ -43,6 +43,7 @@
88959 #include <linux/hash.h>
88960 #include <linux/posix-clock.h>
88961 #include <linux/posix-timers.h>
88962 +#include <linux/grsecurity.h>
88963 #include <linux/syscalls.h>
88964 #include <linux/wait.h>
88965 #include <linux/workqueue.h>
88966 @@ -122,7 +123,7 @@ static DEFINE_SPINLOCK(hash_lock);
88967 * which we beg off on and pass to do_sys_settimeofday().
88968 */
88969
88970 -static struct k_clock posix_clocks[MAX_CLOCKS];
88971 +static struct k_clock *posix_clocks[MAX_CLOCKS];
88972
88973 /*
88974 * These ones are defined below.
88975 @@ -275,7 +276,7 @@ static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
88976 */
88977 static __init int init_posix_timers(void)
88978 {
88979 - struct k_clock clock_realtime = {
88980 + static struct k_clock clock_realtime = {
88981 .clock_getres = hrtimer_get_res,
88982 .clock_get = posix_clock_realtime_get,
88983 .clock_set = posix_clock_realtime_set,
88984 @@ -287,7 +288,7 @@ static __init int init_posix_timers(void)
88985 .timer_get = common_timer_get,
88986 .timer_del = common_timer_del,
88987 };
88988 - struct k_clock clock_monotonic = {
88989 + static struct k_clock clock_monotonic = {
88990 .clock_getres = hrtimer_get_res,
88991 .clock_get = posix_ktime_get_ts,
88992 .nsleep = common_nsleep,
88993 @@ -297,19 +298,19 @@ static __init int init_posix_timers(void)
88994 .timer_get = common_timer_get,
88995 .timer_del = common_timer_del,
88996 };
88997 - struct k_clock clock_monotonic_raw = {
88998 + static struct k_clock clock_monotonic_raw = {
88999 .clock_getres = hrtimer_get_res,
89000 .clock_get = posix_get_monotonic_raw,
89001 };
89002 - struct k_clock clock_realtime_coarse = {
89003 + static struct k_clock clock_realtime_coarse = {
89004 .clock_getres = posix_get_coarse_res,
89005 .clock_get = posix_get_realtime_coarse,
89006 };
89007 - struct k_clock clock_monotonic_coarse = {
89008 + static struct k_clock clock_monotonic_coarse = {
89009 .clock_getres = posix_get_coarse_res,
89010 .clock_get = posix_get_monotonic_coarse,
89011 };
89012 - struct k_clock clock_tai = {
89013 + static struct k_clock clock_tai = {
89014 .clock_getres = hrtimer_get_res,
89015 .clock_get = posix_get_tai,
89016 .nsleep = common_nsleep,
89017 @@ -319,7 +320,7 @@ static __init int init_posix_timers(void)
89018 .timer_get = common_timer_get,
89019 .timer_del = common_timer_del,
89020 };
89021 - struct k_clock clock_boottime = {
89022 + static struct k_clock clock_boottime = {
89023 .clock_getres = hrtimer_get_res,
89024 .clock_get = posix_get_boottime,
89025 .nsleep = common_nsleep,
89026 @@ -531,7 +532,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
89027 return;
89028 }
89029
89030 - posix_clocks[clock_id] = *new_clock;
89031 + posix_clocks[clock_id] = new_clock;
89032 }
89033 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
89034
89035 @@ -577,9 +578,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
89036 return (id & CLOCKFD_MASK) == CLOCKFD ?
89037 &clock_posix_dynamic : &clock_posix_cpu;
89038
89039 - if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
89040 + if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
89041 return NULL;
89042 - return &posix_clocks[id];
89043 + return posix_clocks[id];
89044 }
89045
89046 static int common_timer_create(struct k_itimer *new_timer)
89047 @@ -597,7 +598,7 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
89048 struct k_clock *kc = clockid_to_kclock(which_clock);
89049 struct k_itimer *new_timer;
89050 int error, new_timer_id;
89051 - sigevent_t event;
89052 + sigevent_t event = { };
89053 int it_id_set = IT_ID_NOT_SET;
89054
89055 if (!kc)
89056 @@ -1011,6 +1012,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
89057 if (copy_from_user(&new_tp, tp, sizeof (*tp)))
89058 return -EFAULT;
89059
89060 + /* only the CLOCK_REALTIME clock can be set, all other clocks
89061 + have their clock_set fptr set to a nosettime dummy function
89062 + CLOCK_REALTIME has a NULL clock_set fptr which causes it to
89063 + call common_clock_set, which calls do_sys_settimeofday, which
89064 + we hook
89065 + */
89066 +
89067 return kc->clock_set(which_clock, &new_tp);
89068 }
89069
89070 diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
89071 index 2fac9cc..56fef29 100644
89072 --- a/kernel/power/Kconfig
89073 +++ b/kernel/power/Kconfig
89074 @@ -24,6 +24,8 @@ config HIBERNATE_CALLBACKS
89075 config HIBERNATION
89076 bool "Hibernation (aka 'suspend to disk')"
89077 depends on SWAP && ARCH_HIBERNATION_POSSIBLE
89078 + depends on !GRKERNSEC_KMEM
89079 + depends on !PAX_MEMORY_SANITIZE
89080 select HIBERNATE_CALLBACKS
89081 select LZO_COMPRESS
89082 select LZO_DECOMPRESS
89083 diff --git a/kernel/power/process.c b/kernel/power/process.c
89084 index 06ec886..9dba35e 100644
89085 --- a/kernel/power/process.c
89086 +++ b/kernel/power/process.c
89087 @@ -34,6 +34,7 @@ static int try_to_freeze_tasks(bool user_only)
89088 unsigned int elapsed_msecs;
89089 bool wakeup = false;
89090 int sleep_usecs = USEC_PER_MSEC;
89091 + bool timedout = false;
89092
89093 do_gettimeofday(&start);
89094
89095 @@ -44,13 +45,20 @@ static int try_to_freeze_tasks(bool user_only)
89096
89097 while (true) {
89098 todo = 0;
89099 + if (time_after(jiffies, end_time))
89100 + timedout = true;
89101 read_lock(&tasklist_lock);
89102 do_each_thread(g, p) {
89103 if (p == current || !freeze_task(p))
89104 continue;
89105
89106 - if (!freezer_should_skip(p))
89107 + if (!freezer_should_skip(p)) {
89108 todo++;
89109 + if (timedout) {
89110 + printk(KERN_ERR "Task refusing to freeze:\n");
89111 + sched_show_task(p);
89112 + }
89113 + }
89114 } while_each_thread(g, p);
89115 read_unlock(&tasklist_lock);
89116
89117 @@ -59,7 +67,7 @@ static int try_to_freeze_tasks(bool user_only)
89118 todo += wq_busy;
89119 }
89120
89121 - if (!todo || time_after(jiffies, end_time))
89122 + if (!todo || timedout)
89123 break;
89124
89125 if (pm_wakeup_pending()) {
89126 diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
89127 index 221229c..c76ca0a 100644
89128 --- a/kernel/printk/printk.c
89129 +++ b/kernel/printk/printk.c
89130 @@ -385,6 +385,11 @@ static int check_syslog_permissions(int type, bool from_file)
89131 if (from_file && type != SYSLOG_ACTION_OPEN)
89132 return 0;
89133
89134 +#ifdef CONFIG_GRKERNSEC_DMESG
89135 + if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
89136 + return -EPERM;
89137 +#endif
89138 +
89139 if (syslog_action_restricted(type)) {
89140 if (capable(CAP_SYSLOG))
89141 return 0;
89142 diff --git a/kernel/profile.c b/kernel/profile.c
89143 index cb980f0..ccd8782 100644
89144 --- a/kernel/profile.c
89145 +++ b/kernel/profile.c
89146 @@ -37,7 +37,7 @@ struct profile_hit {
89147 #define NR_PROFILE_HIT (PAGE_SIZE/sizeof(struct profile_hit))
89148 #define NR_PROFILE_GRP (NR_PROFILE_HIT/PROFILE_GRPSZ)
89149
89150 -static atomic_t *prof_buffer;
89151 +static atomic_unchecked_t *prof_buffer;
89152 static unsigned long prof_len, prof_shift;
89153
89154 int prof_on __read_mostly;
89155 @@ -260,7 +260,7 @@ static void profile_flip_buffers(void)
89156 hits[i].pc = 0;
89157 continue;
89158 }
89159 - atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
89160 + atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
89161 hits[i].hits = hits[i].pc = 0;
89162 }
89163 }
89164 @@ -321,9 +321,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
89165 * Add the current hit(s) and flush the write-queue out
89166 * to the global buffer:
89167 */
89168 - atomic_add(nr_hits, &prof_buffer[pc]);
89169 + atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
89170 for (i = 0; i < NR_PROFILE_HIT; ++i) {
89171 - atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
89172 + atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
89173 hits[i].pc = hits[i].hits = 0;
89174 }
89175 out:
89176 @@ -398,7 +398,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
89177 {
89178 unsigned long pc;
89179 pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
89180 - atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
89181 + atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
89182 }
89183 #endif /* !CONFIG_SMP */
89184
89185 @@ -494,7 +494,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
89186 return -EFAULT;
89187 buf++; p++; count--; read++;
89188 }
89189 - pnt = (char *)prof_buffer + p - sizeof(atomic_t);
89190 + pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
89191 if (copy_to_user(buf, (void *)pnt, count))
89192 return -EFAULT;
89193 read += count;
89194 @@ -525,7 +525,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
89195 }
89196 #endif
89197 profile_discard_flip_buffers();
89198 - memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
89199 + memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
89200 return count;
89201 }
89202
89203 diff --git a/kernel/ptrace.c b/kernel/ptrace.c
89204 index adf9862..9d86345 100644
89205 --- a/kernel/ptrace.c
89206 +++ b/kernel/ptrace.c
89207 @@ -327,7 +327,7 @@ static int ptrace_attach(struct task_struct *task, long request,
89208 if (seize)
89209 flags |= PT_SEIZED;
89210 rcu_read_lock();
89211 - if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
89212 + if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
89213 flags |= PT_PTRACE_CAP;
89214 rcu_read_unlock();
89215 task->ptrace = flags;
89216 @@ -538,7 +538,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
89217 break;
89218 return -EIO;
89219 }
89220 - if (copy_to_user(dst, buf, retval))
89221 + if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
89222 return -EFAULT;
89223 copied += retval;
89224 src += retval;
89225 @@ -806,7 +806,7 @@ int ptrace_request(struct task_struct *child, long request,
89226 bool seized = child->ptrace & PT_SEIZED;
89227 int ret = -EIO;
89228 siginfo_t siginfo, *si;
89229 - void __user *datavp = (void __user *) data;
89230 + void __user *datavp = (__force void __user *) data;
89231 unsigned long __user *datalp = datavp;
89232 unsigned long flags;
89233
89234 @@ -1052,14 +1052,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
89235 goto out;
89236 }
89237
89238 + if (gr_handle_ptrace(child, request)) {
89239 + ret = -EPERM;
89240 + goto out_put_task_struct;
89241 + }
89242 +
89243 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
89244 ret = ptrace_attach(child, request, addr, data);
89245 /*
89246 * Some architectures need to do book-keeping after
89247 * a ptrace attach.
89248 */
89249 - if (!ret)
89250 + if (!ret) {
89251 arch_ptrace_attach(child);
89252 + gr_audit_ptrace(child);
89253 + }
89254 goto out_put_task_struct;
89255 }
89256
89257 @@ -1087,7 +1094,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
89258 copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
89259 if (copied != sizeof(tmp))
89260 return -EIO;
89261 - return put_user(tmp, (unsigned long __user *)data);
89262 + return put_user(tmp, (__force unsigned long __user *)data);
89263 }
89264
89265 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
89266 @@ -1181,7 +1188,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
89267 }
89268
89269 COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
89270 - compat_long_t, addr, compat_long_t, data)
89271 + compat_ulong_t, addr, compat_ulong_t, data)
89272 {
89273 struct task_struct *child;
89274 long ret;
89275 @@ -1197,14 +1204,21 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
89276 goto out;
89277 }
89278
89279 + if (gr_handle_ptrace(child, request)) {
89280 + ret = -EPERM;
89281 + goto out_put_task_struct;
89282 + }
89283 +
89284 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
89285 ret = ptrace_attach(child, request, addr, data);
89286 /*
89287 * Some architectures need to do book-keeping after
89288 * a ptrace attach.
89289 */
89290 - if (!ret)
89291 + if (!ret) {
89292 arch_ptrace_attach(child);
89293 + gr_audit_ptrace(child);
89294 + }
89295 goto out_put_task_struct;
89296 }
89297
89298 diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
89299 index bd30bc6..dce23da 100644
89300 --- a/kernel/rcu/rcutorture.c
89301 +++ b/kernel/rcu/rcutorture.c
89302 @@ -122,12 +122,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
89303 rcu_torture_count) = { 0 };
89304 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
89305 rcu_torture_batch) = { 0 };
89306 -static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
89307 -static atomic_t n_rcu_torture_alloc;
89308 -static atomic_t n_rcu_torture_alloc_fail;
89309 -static atomic_t n_rcu_torture_free;
89310 -static atomic_t n_rcu_torture_mberror;
89311 -static atomic_t n_rcu_torture_error;
89312 +static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
89313 +static atomic_unchecked_t n_rcu_torture_alloc;
89314 +static atomic_unchecked_t n_rcu_torture_alloc_fail;
89315 +static atomic_unchecked_t n_rcu_torture_free;
89316 +static atomic_unchecked_t n_rcu_torture_mberror;
89317 +static atomic_unchecked_t n_rcu_torture_error;
89318 static long n_rcu_torture_barrier_error;
89319 static long n_rcu_torture_boost_ktrerror;
89320 static long n_rcu_torture_boost_rterror;
89321 @@ -186,11 +186,11 @@ rcu_torture_alloc(void)
89322
89323 spin_lock_bh(&rcu_torture_lock);
89324 if (list_empty(&rcu_torture_freelist)) {
89325 - atomic_inc(&n_rcu_torture_alloc_fail);
89326 + atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
89327 spin_unlock_bh(&rcu_torture_lock);
89328 return NULL;
89329 }
89330 - atomic_inc(&n_rcu_torture_alloc);
89331 + atomic_inc_unchecked(&n_rcu_torture_alloc);
89332 p = rcu_torture_freelist.next;
89333 list_del_init(p);
89334 spin_unlock_bh(&rcu_torture_lock);
89335 @@ -203,7 +203,7 @@ rcu_torture_alloc(void)
89336 static void
89337 rcu_torture_free(struct rcu_torture *p)
89338 {
89339 - atomic_inc(&n_rcu_torture_free);
89340 + atomic_inc_unchecked(&n_rcu_torture_free);
89341 spin_lock_bh(&rcu_torture_lock);
89342 list_add_tail(&p->rtort_free, &rcu_torture_freelist);
89343 spin_unlock_bh(&rcu_torture_lock);
89344 @@ -287,7 +287,7 @@ rcu_torture_cb(struct rcu_head *p)
89345 i = rp->rtort_pipe_count;
89346 if (i > RCU_TORTURE_PIPE_LEN)
89347 i = RCU_TORTURE_PIPE_LEN;
89348 - atomic_inc(&rcu_torture_wcount[i]);
89349 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
89350 if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
89351 rp->rtort_mbtest = 0;
89352 rcu_torture_free(rp);
89353 @@ -714,7 +714,7 @@ rcu_torture_writer(void *arg)
89354 i = old_rp->rtort_pipe_count;
89355 if (i > RCU_TORTURE_PIPE_LEN)
89356 i = RCU_TORTURE_PIPE_LEN;
89357 - atomic_inc(&rcu_torture_wcount[i]);
89358 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
89359 old_rp->rtort_pipe_count++;
89360 if (gp_normal == gp_exp)
89361 exp = !!(torture_random(&rand) & 0x80);
89362 @@ -732,7 +732,7 @@ rcu_torture_writer(void *arg)
89363 i = rp->rtort_pipe_count;
89364 if (i > RCU_TORTURE_PIPE_LEN)
89365 i = RCU_TORTURE_PIPE_LEN;
89366 - atomic_inc(&rcu_torture_wcount[i]);
89367 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
89368 if (++rp->rtort_pipe_count >=
89369 RCU_TORTURE_PIPE_LEN) {
89370 rp->rtort_mbtest = 0;
89371 @@ -825,7 +825,7 @@ static void rcu_torture_timer(unsigned long unused)
89372 return;
89373 }
89374 if (p->rtort_mbtest == 0)
89375 - atomic_inc(&n_rcu_torture_mberror);
89376 + atomic_inc_unchecked(&n_rcu_torture_mberror);
89377 spin_lock(&rand_lock);
89378 cur_ops->read_delay(&rand);
89379 n_rcu_torture_timers++;
89380 @@ -895,7 +895,7 @@ rcu_torture_reader(void *arg)
89381 continue;
89382 }
89383 if (p->rtort_mbtest == 0)
89384 - atomic_inc(&n_rcu_torture_mberror);
89385 + atomic_inc_unchecked(&n_rcu_torture_mberror);
89386 cur_ops->read_delay(&rand);
89387 preempt_disable();
89388 pipe_count = p->rtort_pipe_count;
89389 @@ -950,15 +950,15 @@ rcu_torture_printk(char *page)
89390 }
89391 page += sprintf(page, "%s%s ", torture_type, TORTURE_FLAG);
89392 page += sprintf(page,
89393 - "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
89394 + "rtc: %pP ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
89395 rcu_torture_current,
89396 rcu_torture_current_version,
89397 list_empty(&rcu_torture_freelist),
89398 - atomic_read(&n_rcu_torture_alloc),
89399 - atomic_read(&n_rcu_torture_alloc_fail),
89400 - atomic_read(&n_rcu_torture_free));
89401 + atomic_read_unchecked(&n_rcu_torture_alloc),
89402 + atomic_read_unchecked(&n_rcu_torture_alloc_fail),
89403 + atomic_read_unchecked(&n_rcu_torture_free));
89404 page += sprintf(page, "rtmbe: %d rtbke: %ld rtbre: %ld ",
89405 - atomic_read(&n_rcu_torture_mberror),
89406 + atomic_read_unchecked(&n_rcu_torture_mberror),
89407 n_rcu_torture_boost_ktrerror,
89408 n_rcu_torture_boost_rterror);
89409 page += sprintf(page, "rtbf: %ld rtb: %ld nt: %ld ",
89410 @@ -971,14 +971,14 @@ rcu_torture_printk(char *page)
89411 n_barrier_attempts,
89412 n_rcu_torture_barrier_error);
89413 page += sprintf(page, "\n%s%s ", torture_type, TORTURE_FLAG);
89414 - if (atomic_read(&n_rcu_torture_mberror) != 0 ||
89415 + if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
89416 n_rcu_torture_barrier_error != 0 ||
89417 n_rcu_torture_boost_ktrerror != 0 ||
89418 n_rcu_torture_boost_rterror != 0 ||
89419 n_rcu_torture_boost_failure != 0 ||
89420 i > 1) {
89421 page += sprintf(page, "!!! ");
89422 - atomic_inc(&n_rcu_torture_error);
89423 + atomic_inc_unchecked(&n_rcu_torture_error);
89424 WARN_ON_ONCE(1);
89425 }
89426 page += sprintf(page, "Reader Pipe: ");
89427 @@ -992,7 +992,7 @@ rcu_torture_printk(char *page)
89428 page += sprintf(page, "Free-Block Circulation: ");
89429 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
89430 page += sprintf(page, " %d",
89431 - atomic_read(&rcu_torture_wcount[i]));
89432 + atomic_read_unchecked(&rcu_torture_wcount[i]));
89433 }
89434 page += sprintf(page, "\n");
89435 if (cur_ops->stats)
89436 @@ -1341,7 +1341,7 @@ rcu_torture_cleanup(void)
89437
89438 rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
89439
89440 - if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
89441 + if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
89442 rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
89443 else if (torture_onoff_failures())
89444 rcu_torture_print_module_parms(cur_ops,
89445 @@ -1460,18 +1460,18 @@ rcu_torture_init(void)
89446
89447 rcu_torture_current = NULL;
89448 rcu_torture_current_version = 0;
89449 - atomic_set(&n_rcu_torture_alloc, 0);
89450 - atomic_set(&n_rcu_torture_alloc_fail, 0);
89451 - atomic_set(&n_rcu_torture_free, 0);
89452 - atomic_set(&n_rcu_torture_mberror, 0);
89453 - atomic_set(&n_rcu_torture_error, 0);
89454 + atomic_set_unchecked(&n_rcu_torture_alloc, 0);
89455 + atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
89456 + atomic_set_unchecked(&n_rcu_torture_free, 0);
89457 + atomic_set_unchecked(&n_rcu_torture_mberror, 0);
89458 + atomic_set_unchecked(&n_rcu_torture_error, 0);
89459 n_rcu_torture_barrier_error = 0;
89460 n_rcu_torture_boost_ktrerror = 0;
89461 n_rcu_torture_boost_rterror = 0;
89462 n_rcu_torture_boost_failure = 0;
89463 n_rcu_torture_boosts = 0;
89464 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
89465 - atomic_set(&rcu_torture_wcount[i], 0);
89466 + atomic_set_unchecked(&rcu_torture_wcount[i], 0);
89467 for_each_possible_cpu(cpu) {
89468 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
89469 per_cpu(rcu_torture_count, cpu)[i] = 0;
89470 diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
89471 index c639556..cf0a0d5 100644
89472 --- a/kernel/rcu/srcu.c
89473 +++ b/kernel/rcu/srcu.c
89474 @@ -298,9 +298,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
89475
89476 idx = ACCESS_ONCE(sp->completed) & 0x1;
89477 preempt_disable();
89478 - ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
89479 + ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
89480 smp_mb(); /* B */ /* Avoid leaking the critical section. */
89481 - ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
89482 + ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
89483 preempt_enable();
89484 return idx;
89485 }
89486 diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
89487 index d9efcc1..ea543e9 100644
89488 --- a/kernel/rcu/tiny.c
89489 +++ b/kernel/rcu/tiny.c
89490 @@ -42,7 +42,7 @@
89491 /* Forward declarations for tiny_plugin.h. */
89492 struct rcu_ctrlblk;
89493 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
89494 -static void rcu_process_callbacks(struct softirq_action *unused);
89495 +static void rcu_process_callbacks(void);
89496 static void __call_rcu(struct rcu_head *head,
89497 void (*func)(struct rcu_head *rcu),
89498 struct rcu_ctrlblk *rcp);
89499 @@ -308,7 +308,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
89500 false));
89501 }
89502
89503 -static void rcu_process_callbacks(struct softirq_action *unused)
89504 +static __latent_entropy void rcu_process_callbacks(void)
89505 {
89506 __rcu_process_callbacks(&rcu_sched_ctrlblk);
89507 __rcu_process_callbacks(&rcu_bh_ctrlblk);
89508 diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
89509 index 0c47e30..a084591 100644
89510 --- a/kernel/rcu/tree.c
89511 +++ b/kernel/rcu/tree.c
89512 @@ -388,9 +388,9 @@ static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
89513 rcu_prepare_for_idle(smp_processor_id());
89514 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
89515 smp_mb__before_atomic_inc(); /* See above. */
89516 - atomic_inc(&rdtp->dynticks);
89517 + atomic_inc_unchecked(&rdtp->dynticks);
89518 smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */
89519 - WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
89520 + WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
89521
89522 /*
89523 * It is illegal to enter an extended quiescent state while
89524 @@ -508,10 +508,10 @@ static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
89525 int user)
89526 {
89527 smp_mb__before_atomic_inc(); /* Force ordering w/previous sojourn. */
89528 - atomic_inc(&rdtp->dynticks);
89529 + atomic_inc_unchecked(&rdtp->dynticks);
89530 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
89531 smp_mb__after_atomic_inc(); /* See above. */
89532 - WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
89533 + WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
89534 rcu_cleanup_after_idle(smp_processor_id());
89535 trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
89536 if (!user && !is_idle_task(current)) {
89537 @@ -632,14 +632,14 @@ void rcu_nmi_enter(void)
89538 struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
89539
89540 if (rdtp->dynticks_nmi_nesting == 0 &&
89541 - (atomic_read(&rdtp->dynticks) & 0x1))
89542 + (atomic_read_unchecked(&rdtp->dynticks) & 0x1))
89543 return;
89544 rdtp->dynticks_nmi_nesting++;
89545 smp_mb__before_atomic_inc(); /* Force delay from prior write. */
89546 - atomic_inc(&rdtp->dynticks);
89547 + atomic_inc_unchecked(&rdtp->dynticks);
89548 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
89549 smp_mb__after_atomic_inc(); /* See above. */
89550 - WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
89551 + WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
89552 }
89553
89554 /**
89555 @@ -658,9 +658,9 @@ void rcu_nmi_exit(void)
89556 return;
89557 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
89558 smp_mb__before_atomic_inc(); /* See above. */
89559 - atomic_inc(&rdtp->dynticks);
89560 + atomic_inc_unchecked(&rdtp->dynticks);
89561 smp_mb__after_atomic_inc(); /* Force delay to next write. */
89562 - WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
89563 + WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
89564 }
89565
89566 /**
89567 @@ -673,7 +673,7 @@ void rcu_nmi_exit(void)
89568 */
89569 bool notrace __rcu_is_watching(void)
89570 {
89571 - return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
89572 + return atomic_read_unchecked(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
89573 }
89574
89575 /**
89576 @@ -756,7 +756,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
89577 static int dyntick_save_progress_counter(struct rcu_data *rdp,
89578 bool *isidle, unsigned long *maxj)
89579 {
89580 - rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
89581 + rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
89582 rcu_sysidle_check_cpu(rdp, isidle, maxj);
89583 return (rdp->dynticks_snap & 0x1) == 0;
89584 }
89585 @@ -779,7 +779,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
89586 unsigned int curr;
89587 unsigned int snap;
89588
89589 - curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
89590 + curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
89591 snap = (unsigned int)rdp->dynticks_snap;
89592
89593 /*
89594 @@ -1449,9 +1449,9 @@ static int rcu_gp_init(struct rcu_state *rsp)
89595 rdp = this_cpu_ptr(rsp->rda);
89596 rcu_preempt_check_blocked_tasks(rnp);
89597 rnp->qsmask = rnp->qsmaskinit;
89598 - ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
89599 + ACCESS_ONCE_RW(rnp->gpnum) = rsp->gpnum;
89600 WARN_ON_ONCE(rnp->completed != rsp->completed);
89601 - ACCESS_ONCE(rnp->completed) = rsp->completed;
89602 + ACCESS_ONCE_RW(rnp->completed) = rsp->completed;
89603 if (rnp == rdp->mynode)
89604 __note_gp_changes(rsp, rnp, rdp);
89605 rcu_preempt_boost_start_gp(rnp);
89606 @@ -1545,7 +1545,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
89607 rcu_for_each_node_breadth_first(rsp, rnp) {
89608 raw_spin_lock_irq(&rnp->lock);
89609 smp_mb__after_unlock_lock();
89610 - ACCESS_ONCE(rnp->completed) = rsp->gpnum;
89611 + ACCESS_ONCE_RW(rnp->completed) = rsp->gpnum;
89612 rdp = this_cpu_ptr(rsp->rda);
89613 if (rnp == rdp->mynode)
89614 __note_gp_changes(rsp, rnp, rdp);
89615 @@ -1560,7 +1560,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
89616 rcu_nocb_gp_set(rnp, nocb);
89617
89618 /* Declare grace period done. */
89619 - ACCESS_ONCE(rsp->completed) = rsp->gpnum;
89620 + ACCESS_ONCE_RW(rsp->completed) = rsp->gpnum;
89621 trace_rcu_grace_period(rsp->name, rsp->completed, TPS("end"));
89622 rsp->fqs_state = RCU_GP_IDLE;
89623 rdp = this_cpu_ptr(rsp->rda);
89624 @@ -1912,7 +1912,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
89625 rsp->qlen += rdp->qlen;
89626 rdp->n_cbs_orphaned += rdp->qlen;
89627 rdp->qlen_lazy = 0;
89628 - ACCESS_ONCE(rdp->qlen) = 0;
89629 + ACCESS_ONCE_RW(rdp->qlen) = 0;
89630 }
89631
89632 /*
89633 @@ -2159,7 +2159,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
89634 }
89635 smp_mb(); /* List handling before counting for rcu_barrier(). */
89636 rdp->qlen_lazy -= count_lazy;
89637 - ACCESS_ONCE(rdp->qlen) -= count;
89638 + ACCESS_ONCE_RW(rdp->qlen) -= count;
89639 rdp->n_cbs_invoked += count;
89640
89641 /* Reinstate batch limit if we have worked down the excess. */
89642 @@ -2304,7 +2304,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
89643 if (rnp_old != NULL)
89644 raw_spin_unlock(&rnp_old->fqslock);
89645 if (ret) {
89646 - ACCESS_ONCE(rsp->n_force_qs_lh)++;
89647 + ACCESS_ONCE_RW(rsp->n_force_qs_lh)++;
89648 return;
89649 }
89650 rnp_old = rnp;
89651 @@ -2316,7 +2316,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
89652 smp_mb__after_unlock_lock();
89653 raw_spin_unlock(&rnp_old->fqslock);
89654 if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
89655 - ACCESS_ONCE(rsp->n_force_qs_lh)++;
89656 + ACCESS_ONCE_RW(rsp->n_force_qs_lh)++;
89657 raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
89658 return; /* Someone beat us to it. */
89659 }
89660 @@ -2362,7 +2362,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
89661 /*
89662 * Do RCU core processing for the current CPU.
89663 */
89664 -static void rcu_process_callbacks(struct softirq_action *unused)
89665 +static void rcu_process_callbacks(void)
89666 {
89667 struct rcu_state *rsp;
89668
89669 @@ -2470,7 +2470,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
89670 WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
89671 if (debug_rcu_head_queue(head)) {
89672 /* Probable double call_rcu(), so leak the callback. */
89673 - ACCESS_ONCE(head->func) = rcu_leak_callback;
89674 + ACCESS_ONCE_RW(head->func) = rcu_leak_callback;
89675 WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
89676 return;
89677 }
89678 @@ -2498,7 +2498,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
89679 local_irq_restore(flags);
89680 return;
89681 }
89682 - ACCESS_ONCE(rdp->qlen)++;
89683 + ACCESS_ONCE_RW(rdp->qlen)++;
89684 if (lazy)
89685 rdp->qlen_lazy++;
89686 else
89687 @@ -2759,11 +2759,11 @@ void synchronize_sched_expedited(void)
89688 * counter wrap on a 32-bit system. Quite a few more CPUs would of
89689 * course be required on a 64-bit system.
89690 */
89691 - if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
89692 + if (ULONG_CMP_GE((ulong)atomic_long_read_unchecked(&rsp->expedited_start),
89693 (ulong)atomic_long_read(&rsp->expedited_done) +
89694 ULONG_MAX / 8)) {
89695 synchronize_sched();
89696 - atomic_long_inc(&rsp->expedited_wrap);
89697 + atomic_long_inc_unchecked(&rsp->expedited_wrap);
89698 return;
89699 }
89700
89701 @@ -2771,7 +2771,7 @@ void synchronize_sched_expedited(void)
89702 * Take a ticket. Note that atomic_inc_return() implies a
89703 * full memory barrier.
89704 */
89705 - snap = atomic_long_inc_return(&rsp->expedited_start);
89706 + snap = atomic_long_inc_return_unchecked(&rsp->expedited_start);
89707 firstsnap = snap;
89708 get_online_cpus();
89709 WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
89710 @@ -2784,14 +2784,14 @@ void synchronize_sched_expedited(void)
89711 synchronize_sched_expedited_cpu_stop,
89712 NULL) == -EAGAIN) {
89713 put_online_cpus();
89714 - atomic_long_inc(&rsp->expedited_tryfail);
89715 + atomic_long_inc_unchecked(&rsp->expedited_tryfail);
89716
89717 /* Check to see if someone else did our work for us. */
89718 s = atomic_long_read(&rsp->expedited_done);
89719 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
89720 /* ensure test happens before caller kfree */
89721 smp_mb__before_atomic_inc(); /* ^^^ */
89722 - atomic_long_inc(&rsp->expedited_workdone1);
89723 + atomic_long_inc_unchecked(&rsp->expedited_workdone1);
89724 return;
89725 }
89726
89727 @@ -2800,7 +2800,7 @@ void synchronize_sched_expedited(void)
89728 udelay(trycount * num_online_cpus());
89729 } else {
89730 wait_rcu_gp(call_rcu_sched);
89731 - atomic_long_inc(&rsp->expedited_normal);
89732 + atomic_long_inc_unchecked(&rsp->expedited_normal);
89733 return;
89734 }
89735
89736 @@ -2809,7 +2809,7 @@ void synchronize_sched_expedited(void)
89737 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
89738 /* ensure test happens before caller kfree */
89739 smp_mb__before_atomic_inc(); /* ^^^ */
89740 - atomic_long_inc(&rsp->expedited_workdone2);
89741 + atomic_long_inc_unchecked(&rsp->expedited_workdone2);
89742 return;
89743 }
89744
89745 @@ -2821,10 +2821,10 @@ void synchronize_sched_expedited(void)
89746 * period works for us.
89747 */
89748 get_online_cpus();
89749 - snap = atomic_long_read(&rsp->expedited_start);
89750 + snap = atomic_long_read_unchecked(&rsp->expedited_start);
89751 smp_mb(); /* ensure read is before try_stop_cpus(). */
89752 }
89753 - atomic_long_inc(&rsp->expedited_stoppedcpus);
89754 + atomic_long_inc_unchecked(&rsp->expedited_stoppedcpus);
89755
89756 /*
89757 * Everyone up to our most recent fetch is covered by our grace
89758 @@ -2833,16 +2833,16 @@ void synchronize_sched_expedited(void)
89759 * than we did already did their update.
89760 */
89761 do {
89762 - atomic_long_inc(&rsp->expedited_done_tries);
89763 + atomic_long_inc_unchecked(&rsp->expedited_done_tries);
89764 s = atomic_long_read(&rsp->expedited_done);
89765 if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
89766 /* ensure test happens before caller kfree */
89767 smp_mb__before_atomic_inc(); /* ^^^ */
89768 - atomic_long_inc(&rsp->expedited_done_lost);
89769 + atomic_long_inc_unchecked(&rsp->expedited_done_lost);
89770 break;
89771 }
89772 } while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
89773 - atomic_long_inc(&rsp->expedited_done_exit);
89774 + atomic_long_inc_unchecked(&rsp->expedited_done_exit);
89775
89776 put_online_cpus();
89777 }
89778 @@ -3048,7 +3048,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
89779 * ACCESS_ONCE() to prevent the compiler from speculating
89780 * the increment to precede the early-exit check.
89781 */
89782 - ACCESS_ONCE(rsp->n_barrier_done)++;
89783 + ACCESS_ONCE_RW(rsp->n_barrier_done)++;
89784 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
89785 _rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
89786 smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
89787 @@ -3098,7 +3098,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
89788
89789 /* Increment ->n_barrier_done to prevent duplicate work. */
89790 smp_mb(); /* Keep increment after above mechanism. */
89791 - ACCESS_ONCE(rsp->n_barrier_done)++;
89792 + ACCESS_ONCE_RW(rsp->n_barrier_done)++;
89793 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
89794 _rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
89795 smp_mb(); /* Keep increment before caller's subsequent code. */
89796 @@ -3143,10 +3143,10 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
89797 rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
89798 init_callback_list(rdp);
89799 rdp->qlen_lazy = 0;
89800 - ACCESS_ONCE(rdp->qlen) = 0;
89801 + ACCESS_ONCE_RW(rdp->qlen) = 0;
89802 rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
89803 WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
89804 - WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
89805 + WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
89806 rdp->cpu = cpu;
89807 rdp->rsp = rsp;
89808 rcu_boot_init_nocb_percpu_data(rdp);
89809 @@ -3180,8 +3180,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
89810 init_callback_list(rdp); /* Re-enable callbacks on this CPU. */
89811 rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
89812 rcu_sysidle_init_percpu_data(rdp->dynticks);
89813 - atomic_set(&rdp->dynticks->dynticks,
89814 - (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
89815 + atomic_set_unchecked(&rdp->dynticks->dynticks,
89816 + (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
89817 raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
89818
89819 /* Add CPU to rcu_node bitmasks. */
89820 diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
89821 index 75dc3c3..b95d624 100644
89822 --- a/kernel/rcu/tree.h
89823 +++ b/kernel/rcu/tree.h
89824 @@ -87,11 +87,11 @@ struct rcu_dynticks {
89825 long long dynticks_nesting; /* Track irq/process nesting level. */
89826 /* Process level is worth LLONG_MAX/2. */
89827 int dynticks_nmi_nesting; /* Track NMI nesting level. */
89828 - atomic_t dynticks; /* Even value for idle, else odd. */
89829 + atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
89830 #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
89831 long long dynticks_idle_nesting;
89832 /* irq/process nesting level from idle. */
89833 - atomic_t dynticks_idle; /* Even value for idle, else odd. */
89834 + atomic_unchecked_t dynticks_idle;/* Even value for idle, else odd. */
89835 /* "Idle" excludes userspace execution. */
89836 unsigned long dynticks_idle_jiffies;
89837 /* End of last non-NMI non-idle period. */
89838 @@ -431,17 +431,17 @@ struct rcu_state {
89839 /* _rcu_barrier(). */
89840 /* End of fields guarded by barrier_mutex. */
89841
89842 - atomic_long_t expedited_start; /* Starting ticket. */
89843 - atomic_long_t expedited_done; /* Done ticket. */
89844 - atomic_long_t expedited_wrap; /* # near-wrap incidents. */
89845 - atomic_long_t expedited_tryfail; /* # acquisition failures. */
89846 - atomic_long_t expedited_workdone1; /* # done by others #1. */
89847 - atomic_long_t expedited_workdone2; /* # done by others #2. */
89848 - atomic_long_t expedited_normal; /* # fallbacks to normal. */
89849 - atomic_long_t expedited_stoppedcpus; /* # successful stop_cpus. */
89850 - atomic_long_t expedited_done_tries; /* # tries to update _done. */
89851 - atomic_long_t expedited_done_lost; /* # times beaten to _done. */
89852 - atomic_long_t expedited_done_exit; /* # times exited _done loop. */
89853 + atomic_long_unchecked_t expedited_start; /* Starting ticket. */
89854 + atomic_long_t expedited_done; /* Done ticket. */
89855 + atomic_long_unchecked_t expedited_wrap; /* # near-wrap incidents. */
89856 + atomic_long_unchecked_t expedited_tryfail; /* # acquisition failures. */
89857 + atomic_long_unchecked_t expedited_workdone1; /* # done by others #1. */
89858 + atomic_long_unchecked_t expedited_workdone2; /* # done by others #2. */
89859 + atomic_long_unchecked_t expedited_normal; /* # fallbacks to normal. */
89860 + atomic_long_unchecked_t expedited_stoppedcpus; /* # successful stop_cpus. */
89861 + atomic_long_unchecked_t expedited_done_tries; /* # tries to update _done. */
89862 + atomic_long_unchecked_t expedited_done_lost; /* # times beaten to _done. */
89863 + atomic_long_unchecked_t expedited_done_exit; /* # times exited _done loop. */
89864
89865 unsigned long jiffies_force_qs; /* Time at which to invoke */
89866 /* force_quiescent_state(). */
89867 diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
89868 index 962d1d5..c6c62d12d 100644
89869 --- a/kernel/rcu/tree_plugin.h
89870 +++ b/kernel/rcu/tree_plugin.h
89871 @@ -758,7 +758,7 @@ static int rcu_preempted_readers_exp(struct rcu_node *rnp)
89872 static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
89873 {
89874 return !rcu_preempted_readers_exp(rnp) &&
89875 - ACCESS_ONCE(rnp->expmask) == 0;
89876 + ACCESS_ONCE_RW(rnp->expmask) == 0;
89877 }
89878
89879 /*
89880 @@ -920,7 +920,7 @@ void synchronize_rcu_expedited(void)
89881
89882 /* Clean up and exit. */
89883 smp_mb(); /* ensure expedited GP seen before counter increment. */
89884 - ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
89885 + ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++;
89886 unlock_mb_ret:
89887 mutex_unlock(&sync_rcu_preempt_exp_mutex);
89888 mb_ret:
89889 @@ -1496,7 +1496,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
89890 free_cpumask_var(cm);
89891 }
89892
89893 -static struct smp_hotplug_thread rcu_cpu_thread_spec = {
89894 +static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
89895 .store = &rcu_cpu_kthread_task,
89896 .thread_should_run = rcu_cpu_kthread_should_run,
89897 .thread_fn = rcu_cpu_kthread,
89898 @@ -1972,7 +1972,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
89899 print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
89900 pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u %s\n",
89901 cpu, ticks_value, ticks_title,
89902 - atomic_read(&rdtp->dynticks) & 0xfff,
89903 + atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
89904 rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
89905 rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
89906 fast_no_hz);
89907 @@ -2138,7 +2138,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
89908
89909 /* Enqueue the callback on the nocb list and update counts. */
89910 old_rhpp = xchg(&rdp->nocb_tail, rhtp);
89911 - ACCESS_ONCE(*old_rhpp) = rhp;
89912 + ACCESS_ONCE_RW(*old_rhpp) = rhp;
89913 atomic_long_add(rhcount, &rdp->nocb_q_count);
89914 atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
89915
89916 @@ -2311,12 +2311,12 @@ static int rcu_nocb_kthread(void *arg)
89917 * Extract queued callbacks, update counts, and wait
89918 * for a grace period to elapse.
89919 */
89920 - ACCESS_ONCE(rdp->nocb_head) = NULL;
89921 + ACCESS_ONCE_RW(rdp->nocb_head) = NULL;
89922 tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
89923 c = atomic_long_xchg(&rdp->nocb_q_count, 0);
89924 cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
89925 - ACCESS_ONCE(rdp->nocb_p_count) += c;
89926 - ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
89927 + ACCESS_ONCE_RW(rdp->nocb_p_count) += c;
89928 + ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) += cl;
89929 rcu_nocb_wait_gp(rdp);
89930
89931 /* Each pass through the following loop invokes a callback. */
89932 @@ -2342,8 +2342,8 @@ static int rcu_nocb_kthread(void *arg)
89933 list = next;
89934 }
89935 trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
89936 - ACCESS_ONCE(rdp->nocb_p_count) -= c;
89937 - ACCESS_ONCE(rdp->nocb_p_count_lazy) -= cl;
89938 + ACCESS_ONCE_RW(rdp->nocb_p_count) -= c;
89939 + ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) -= cl;
89940 rdp->n_nocbs_invoked += c;
89941 }
89942 return 0;
89943 @@ -2360,7 +2360,7 @@ static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
89944 {
89945 if (!rcu_nocb_need_deferred_wakeup(rdp))
89946 return;
89947 - ACCESS_ONCE(rdp->nocb_defer_wakeup) = false;
89948 + ACCESS_ONCE_RW(rdp->nocb_defer_wakeup) = false;
89949 wake_up(&rdp->nocb_wq);
89950 trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWakeEmpty"));
89951 }
89952 @@ -2386,7 +2386,7 @@ static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
89953 t = kthread_run(rcu_nocb_kthread, rdp,
89954 "rcuo%c/%d", rsp->abbr, cpu);
89955 BUG_ON(IS_ERR(t));
89956 - ACCESS_ONCE(rdp->nocb_kthread) = t;
89957 + ACCESS_ONCE_RW(rdp->nocb_kthread) = t;
89958 }
89959 }
89960
89961 @@ -2522,11 +2522,11 @@ static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
89962
89963 /* Record start of fully idle period. */
89964 j = jiffies;
89965 - ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
89966 + ACCESS_ONCE_RW(rdtp->dynticks_idle_jiffies) = j;
89967 smp_mb__before_atomic_inc();
89968 - atomic_inc(&rdtp->dynticks_idle);
89969 + atomic_inc_unchecked(&rdtp->dynticks_idle);
89970 smp_mb__after_atomic_inc();
89971 - WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
89972 + WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1);
89973 }
89974
89975 /*
89976 @@ -2591,9 +2591,9 @@ static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
89977
89978 /* Record end of idle period. */
89979 smp_mb__before_atomic_inc();
89980 - atomic_inc(&rdtp->dynticks_idle);
89981 + atomic_inc_unchecked(&rdtp->dynticks_idle);
89982 smp_mb__after_atomic_inc();
89983 - WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
89984 + WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1));
89985
89986 /*
89987 * If we are the timekeeping CPU, we are permitted to be non-idle
89988 @@ -2634,7 +2634,7 @@ static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
89989 WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
89990
89991 /* Pick up current idle and NMI-nesting counter and check. */
89992 - cur = atomic_read(&rdtp->dynticks_idle);
89993 + cur = atomic_read_unchecked(&rdtp->dynticks_idle);
89994 if (cur & 0x1) {
89995 *isidle = false; /* We are not idle! */
89996 return;
89997 @@ -2697,7 +2697,7 @@ static void rcu_sysidle(unsigned long j)
89998 case RCU_SYSIDLE_NOT:
89999
90000 /* First time all are idle, so note a short idle period. */
90001 - ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
90002 + ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_SHORT;
90003 break;
90004
90005 case RCU_SYSIDLE_SHORT:
90006 @@ -2734,7 +2734,7 @@ static void rcu_sysidle(unsigned long j)
90007 static void rcu_sysidle_cancel(void)
90008 {
90009 smp_mb();
90010 - ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
90011 + ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_NOT;
90012 }
90013
90014 /*
90015 @@ -2782,7 +2782,7 @@ static void rcu_sysidle_cb(struct rcu_head *rhp)
90016 smp_mb(); /* grace period precedes setting inuse. */
90017
90018 rshp = container_of(rhp, struct rcu_sysidle_head, rh);
90019 - ACCESS_ONCE(rshp->inuse) = 0;
90020 + ACCESS_ONCE_RW(rshp->inuse) = 0;
90021 }
90022
90023 /*
90024 diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
90025 index 5cdc62e..cc52e88 100644
90026 --- a/kernel/rcu/tree_trace.c
90027 +++ b/kernel/rcu/tree_trace.c
90028 @@ -121,7 +121,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
90029 ulong2long(rdp->completed), ulong2long(rdp->gpnum),
90030 rdp->passed_quiesce, rdp->qs_pending);
90031 seq_printf(m, " dt=%d/%llx/%d df=%lu",
90032 - atomic_read(&rdp->dynticks->dynticks),
90033 + atomic_read_unchecked(&rdp->dynticks->dynticks),
90034 rdp->dynticks->dynticks_nesting,
90035 rdp->dynticks->dynticks_nmi_nesting,
90036 rdp->dynticks_fqs);
90037 @@ -182,17 +182,17 @@ static int show_rcuexp(struct seq_file *m, void *v)
90038 struct rcu_state *rsp = (struct rcu_state *)m->private;
90039
90040 seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
90041 - atomic_long_read(&rsp->expedited_start),
90042 + atomic_long_read_unchecked(&rsp->expedited_start),
90043 atomic_long_read(&rsp->expedited_done),
90044 - atomic_long_read(&rsp->expedited_wrap),
90045 - atomic_long_read(&rsp->expedited_tryfail),
90046 - atomic_long_read(&rsp->expedited_workdone1),
90047 - atomic_long_read(&rsp->expedited_workdone2),
90048 - atomic_long_read(&rsp->expedited_normal),
90049 - atomic_long_read(&rsp->expedited_stoppedcpus),
90050 - atomic_long_read(&rsp->expedited_done_tries),
90051 - atomic_long_read(&rsp->expedited_done_lost),
90052 - atomic_long_read(&rsp->expedited_done_exit));
90053 + atomic_long_read_unchecked(&rsp->expedited_wrap),
90054 + atomic_long_read_unchecked(&rsp->expedited_tryfail),
90055 + atomic_long_read_unchecked(&rsp->expedited_workdone1),
90056 + atomic_long_read_unchecked(&rsp->expedited_workdone2),
90057 + atomic_long_read_unchecked(&rsp->expedited_normal),
90058 + atomic_long_read_unchecked(&rsp->expedited_stoppedcpus),
90059 + atomic_long_read_unchecked(&rsp->expedited_done_tries),
90060 + atomic_long_read_unchecked(&rsp->expedited_done_lost),
90061 + atomic_long_read_unchecked(&rsp->expedited_done_exit));
90062 return 0;
90063 }
90064
90065 diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
90066 index 4c0a9b0..7e81362 100644
90067 --- a/kernel/rcu/update.c
90068 +++ b/kernel/rcu/update.c
90069 @@ -311,10 +311,10 @@ int rcu_jiffies_till_stall_check(void)
90070 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
90071 */
90072 if (till_stall_check < 3) {
90073 - ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
90074 + ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
90075 till_stall_check = 3;
90076 } else if (till_stall_check > 300) {
90077 - ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
90078 + ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
90079 till_stall_check = 300;
90080 }
90081 return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
90082 diff --git a/kernel/resource.c b/kernel/resource.c
90083 index 8957d68..770cbe4 100644
90084 --- a/kernel/resource.c
90085 +++ b/kernel/resource.c
90086 @@ -152,8 +152,18 @@ static const struct file_operations proc_iomem_operations = {
90087
90088 static int __init ioresources_init(void)
90089 {
90090 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
90091 +#ifdef CONFIG_GRKERNSEC_PROC_USER
90092 + proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
90093 + proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
90094 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
90095 + proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
90096 + proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
90097 +#endif
90098 +#else
90099 proc_create("ioports", 0, NULL, &proc_ioports_operations);
90100 proc_create("iomem", 0, NULL, &proc_iomem_operations);
90101 +#endif
90102 return 0;
90103 }
90104 __initcall(ioresources_init);
90105 diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
90106 index e73efba..c9bfbd4 100644
90107 --- a/kernel/sched/auto_group.c
90108 +++ b/kernel/sched/auto_group.c
90109 @@ -11,7 +11,7 @@
90110
90111 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
90112 static struct autogroup autogroup_default;
90113 -static atomic_t autogroup_seq_nr;
90114 +static atomic_unchecked_t autogroup_seq_nr;
90115
90116 void __init autogroup_init(struct task_struct *init_task)
90117 {
90118 @@ -79,7 +79,7 @@ static inline struct autogroup *autogroup_create(void)
90119
90120 kref_init(&ag->kref);
90121 init_rwsem(&ag->lock);
90122 - ag->id = atomic_inc_return(&autogroup_seq_nr);
90123 + ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
90124 ag->tg = tg;
90125 #ifdef CONFIG_RT_GROUP_SCHED
90126 /*
90127 diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
90128 index a63f4dc..349bbb0 100644
90129 --- a/kernel/sched/completion.c
90130 +++ b/kernel/sched/completion.c
90131 @@ -204,7 +204,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible);
90132 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
90133 * or number of jiffies left till timeout) if completed.
90134 */
90135 -long __sched
90136 +long __sched __intentional_overflow(-1)
90137 wait_for_completion_interruptible_timeout(struct completion *x,
90138 unsigned long timeout)
90139 {
90140 @@ -221,7 +221,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
90141 *
90142 * Return: -ERESTARTSYS if interrupted, 0 if completed.
90143 */
90144 -int __sched wait_for_completion_killable(struct completion *x)
90145 +int __sched __intentional_overflow(-1) wait_for_completion_killable(struct completion *x)
90146 {
90147 long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
90148 if (t == -ERESTARTSYS)
90149 @@ -242,7 +242,7 @@ EXPORT_SYMBOL(wait_for_completion_killable);
90150 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
90151 * or number of jiffies left till timeout) if completed.
90152 */
90153 -long __sched
90154 +long __sched __intentional_overflow(-1)
90155 wait_for_completion_killable_timeout(struct completion *x,
90156 unsigned long timeout)
90157 {
90158 diff --git a/kernel/sched/core.c b/kernel/sched/core.c
90159 index 084d17f..e416b9f 100644
90160 --- a/kernel/sched/core.c
90161 +++ b/kernel/sched/core.c
90162 @@ -1775,7 +1775,7 @@ void set_numabalancing_state(bool enabled)
90163 int sysctl_numa_balancing(struct ctl_table *table, int write,
90164 void __user *buffer, size_t *lenp, loff_t *ppos)
90165 {
90166 - struct ctl_table t;
90167 + ctl_table_no_const t;
90168 int err;
90169 int state = numabalancing_enabled;
90170
90171 @@ -2238,8 +2238,10 @@ context_switch(struct rq *rq, struct task_struct *prev,
90172 next->active_mm = oldmm;
90173 atomic_inc(&oldmm->mm_count);
90174 enter_lazy_tlb(oldmm, next);
90175 - } else
90176 + } else {
90177 switch_mm(oldmm, mm, next);
90178 + populate_stack();
90179 + }
90180
90181 if (!prev->mm) {
90182 prev->active_mm = NULL;
90183 @@ -3004,6 +3006,8 @@ int can_nice(const struct task_struct *p, const int nice)
90184 /* convert nice value [19,-20] to rlimit style value [1,40] */
90185 int nice_rlim = 20 - nice;
90186
90187 + gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
90188 +
90189 return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
90190 capable(CAP_SYS_NICE));
90191 }
90192 @@ -3037,7 +3041,8 @@ SYSCALL_DEFINE1(nice, int, increment)
90193 if (nice > MAX_NICE)
90194 nice = MAX_NICE;
90195
90196 - if (increment < 0 && !can_nice(current, nice))
90197 + if (increment < 0 && (!can_nice(current, nice) ||
90198 + gr_handle_chroot_nice()))
90199 return -EPERM;
90200
90201 retval = security_task_setnice(current, nice);
90202 @@ -3310,6 +3315,7 @@ recheck:
90203 if (policy != p->policy && !rlim_rtprio)
90204 return -EPERM;
90205
90206 + gr_learn_resource(p, RLIMIT_RTPRIO, attr->sched_priority, 1);
90207 /* can't increase priority */
90208 if (attr->sched_priority > p->rt_priority &&
90209 attr->sched_priority > rlim_rtprio)
90210 @@ -4708,6 +4714,7 @@ void idle_task_exit(void)
90211
90212 if (mm != &init_mm) {
90213 switch_mm(mm, &init_mm, current);
90214 + populate_stack();
90215 finish_arch_post_lock_switch();
90216 }
90217 mmdrop(mm);
90218 @@ -4803,7 +4810,7 @@ static void migrate_tasks(unsigned int dead_cpu)
90219
90220 #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL)
90221
90222 -static struct ctl_table sd_ctl_dir[] = {
90223 +static ctl_table_no_const sd_ctl_dir[] __read_only = {
90224 {
90225 .procname = "sched_domain",
90226 .mode = 0555,
90227 @@ -4820,17 +4827,17 @@ static struct ctl_table sd_ctl_root[] = {
90228 {}
90229 };
90230
90231 -static struct ctl_table *sd_alloc_ctl_entry(int n)
90232 +static ctl_table_no_const *sd_alloc_ctl_entry(int n)
90233 {
90234 - struct ctl_table *entry =
90235 + ctl_table_no_const *entry =
90236 kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
90237
90238 return entry;
90239 }
90240
90241 -static void sd_free_ctl_entry(struct ctl_table **tablep)
90242 +static void sd_free_ctl_entry(ctl_table_no_const *tablep)
90243 {
90244 - struct ctl_table *entry;
90245 + ctl_table_no_const *entry;
90246
90247 /*
90248 * In the intermediate directories, both the child directory and
90249 @@ -4838,22 +4845,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
90250 * will always be set. In the lowest directory the names are
90251 * static strings and all have proc handlers.
90252 */
90253 - for (entry = *tablep; entry->mode; entry++) {
90254 - if (entry->child)
90255 - sd_free_ctl_entry(&entry->child);
90256 + for (entry = tablep; entry->mode; entry++) {
90257 + if (entry->child) {
90258 + sd_free_ctl_entry(entry->child);
90259 + pax_open_kernel();
90260 + entry->child = NULL;
90261 + pax_close_kernel();
90262 + }
90263 if (entry->proc_handler == NULL)
90264 kfree(entry->procname);
90265 }
90266
90267 - kfree(*tablep);
90268 - *tablep = NULL;
90269 + kfree(tablep);
90270 }
90271
90272 static int min_load_idx = 0;
90273 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
90274
90275 static void
90276 -set_table_entry(struct ctl_table *entry,
90277 +set_table_entry(ctl_table_no_const *entry,
90278 const char *procname, void *data, int maxlen,
90279 umode_t mode, proc_handler *proc_handler,
90280 bool load_idx)
90281 @@ -4873,7 +4883,7 @@ set_table_entry(struct ctl_table *entry,
90282 static struct ctl_table *
90283 sd_alloc_ctl_domain_table(struct sched_domain *sd)
90284 {
90285 - struct ctl_table *table = sd_alloc_ctl_entry(14);
90286 + ctl_table_no_const *table = sd_alloc_ctl_entry(14);
90287
90288 if (table == NULL)
90289 return NULL;
90290 @@ -4911,9 +4921,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
90291 return table;
90292 }
90293
90294 -static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
90295 +static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
90296 {
90297 - struct ctl_table *entry, *table;
90298 + ctl_table_no_const *entry, *table;
90299 struct sched_domain *sd;
90300 int domain_num = 0, i;
90301 char buf[32];
90302 @@ -4940,11 +4950,13 @@ static struct ctl_table_header *sd_sysctl_header;
90303 static void register_sched_domain_sysctl(void)
90304 {
90305 int i, cpu_num = num_possible_cpus();
90306 - struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
90307 + ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
90308 char buf[32];
90309
90310 WARN_ON(sd_ctl_dir[0].child);
90311 + pax_open_kernel();
90312 sd_ctl_dir[0].child = entry;
90313 + pax_close_kernel();
90314
90315 if (entry == NULL)
90316 return;
90317 @@ -4967,8 +4979,12 @@ static void unregister_sched_domain_sysctl(void)
90318 if (sd_sysctl_header)
90319 unregister_sysctl_table(sd_sysctl_header);
90320 sd_sysctl_header = NULL;
90321 - if (sd_ctl_dir[0].child)
90322 - sd_free_ctl_entry(&sd_ctl_dir[0].child);
90323 + if (sd_ctl_dir[0].child) {
90324 + sd_free_ctl_entry(sd_ctl_dir[0].child);
90325 + pax_open_kernel();
90326 + sd_ctl_dir[0].child = NULL;
90327 + pax_close_kernel();
90328 + }
90329 }
90330 #else
90331 static void register_sched_domain_sysctl(void)
90332 diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
90333 index 8cbe2d2..61f20a1 100644
90334 --- a/kernel/sched/fair.c
90335 +++ b/kernel/sched/fair.c
90336 @@ -1806,7 +1806,7 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
90337
90338 static void reset_ptenuma_scan(struct task_struct *p)
90339 {
90340 - ACCESS_ONCE(p->mm->numa_scan_seq)++;
90341 + ACCESS_ONCE_RW(p->mm->numa_scan_seq)++;
90342 p->mm->numa_scan_offset = 0;
90343 }
90344
90345 @@ -7181,7 +7181,7 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
90346 * run_rebalance_domains is triggered when needed from the scheduler tick.
90347 * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
90348 */
90349 -static void run_rebalance_domains(struct softirq_action *h)
90350 +static __latent_entropy void run_rebalance_domains(void)
90351 {
90352 struct rq *this_rq = this_rq();
90353 enum cpu_idle_type idle = this_rq->idle_balance ?
90354 diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
90355 index 369b4d6..fa4eb3b 100644
90356 --- a/kernel/sched/sched.h
90357 +++ b/kernel/sched/sched.h
90358 @@ -1157,7 +1157,7 @@ struct sched_class {
90359 #ifdef CONFIG_FAIR_GROUP_SCHED
90360 void (*task_move_group) (struct task_struct *p, int on_rq);
90361 #endif
90362 -};
90363 +} __do_const;
90364
90365 static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
90366 {
90367 diff --git a/kernel/signal.c b/kernel/signal.c
90368 index 6ea13c0..31e3b25 100644
90369 --- a/kernel/signal.c
90370 +++ b/kernel/signal.c
90371 @@ -53,12 +53,12 @@ static struct kmem_cache *sigqueue_cachep;
90372
90373 int print_fatal_signals __read_mostly;
90374
90375 -static void __user *sig_handler(struct task_struct *t, int sig)
90376 +static __sighandler_t sig_handler(struct task_struct *t, int sig)
90377 {
90378 return t->sighand->action[sig - 1].sa.sa_handler;
90379 }
90380
90381 -static int sig_handler_ignored(void __user *handler, int sig)
90382 +static int sig_handler_ignored(__sighandler_t handler, int sig)
90383 {
90384 /* Is it explicitly or implicitly ignored? */
90385 return handler == SIG_IGN ||
90386 @@ -67,7 +67,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
90387
90388 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
90389 {
90390 - void __user *handler;
90391 + __sighandler_t handler;
90392
90393 handler = sig_handler(t, sig);
90394
90395 @@ -371,6 +371,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
90396 atomic_inc(&user->sigpending);
90397 rcu_read_unlock();
90398
90399 + if (!override_rlimit)
90400 + gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
90401 +
90402 if (override_rlimit ||
90403 atomic_read(&user->sigpending) <=
90404 task_rlimit(t, RLIMIT_SIGPENDING)) {
90405 @@ -498,7 +501,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
90406
90407 int unhandled_signal(struct task_struct *tsk, int sig)
90408 {
90409 - void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
90410 + __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
90411 if (is_global_init(tsk))
90412 return 1;
90413 if (handler != SIG_IGN && handler != SIG_DFL)
90414 @@ -818,6 +821,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
90415 }
90416 }
90417
90418 + /* allow glibc communication via tgkill to other threads in our
90419 + thread group */
90420 + if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
90421 + sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
90422 + && gr_handle_signal(t, sig))
90423 + return -EPERM;
90424 +
90425 return security_task_kill(t, info, sig, 0);
90426 }
90427
90428 @@ -1201,7 +1211,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
90429 return send_signal(sig, info, p, 1);
90430 }
90431
90432 -static int
90433 +int
90434 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
90435 {
90436 return send_signal(sig, info, t, 0);
90437 @@ -1238,6 +1248,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
90438 unsigned long int flags;
90439 int ret, blocked, ignored;
90440 struct k_sigaction *action;
90441 + int is_unhandled = 0;
90442
90443 spin_lock_irqsave(&t->sighand->siglock, flags);
90444 action = &t->sighand->action[sig-1];
90445 @@ -1252,9 +1263,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
90446 }
90447 if (action->sa.sa_handler == SIG_DFL)
90448 t->signal->flags &= ~SIGNAL_UNKILLABLE;
90449 + if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
90450 + is_unhandled = 1;
90451 ret = specific_send_sig_info(sig, info, t);
90452 spin_unlock_irqrestore(&t->sighand->siglock, flags);
90453
90454 + /* only deal with unhandled signals, java etc trigger SIGSEGV during
90455 + normal operation */
90456 + if (is_unhandled) {
90457 + gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
90458 + gr_handle_crash(t, sig);
90459 + }
90460 +
90461 return ret;
90462 }
90463
90464 @@ -1321,8 +1341,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
90465 ret = check_kill_permission(sig, info, p);
90466 rcu_read_unlock();
90467
90468 - if (!ret && sig)
90469 + if (!ret && sig) {
90470 ret = do_send_sig_info(sig, info, p, true);
90471 + if (!ret)
90472 + gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
90473 + }
90474
90475 return ret;
90476 }
90477 @@ -2928,7 +2951,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
90478 int error = -ESRCH;
90479
90480 rcu_read_lock();
90481 - p = find_task_by_vpid(pid);
90482 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
90483 + /* allow glibc communication via tgkill to other threads in our
90484 + thread group */
90485 + if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
90486 + sig == (SIGRTMIN+1) && tgid == info->si_pid)
90487 + p = find_task_by_vpid_unrestricted(pid);
90488 + else
90489 +#endif
90490 + p = find_task_by_vpid(pid);
90491 if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
90492 error = check_kill_permission(sig, info, p);
90493 /*
90494 @@ -3241,8 +3272,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
90495 }
90496 seg = get_fs();
90497 set_fs(KERNEL_DS);
90498 - ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
90499 - (stack_t __force __user *) &uoss,
90500 + ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
90501 + (stack_t __force_user *) &uoss,
90502 compat_user_stack_pointer());
90503 set_fs(seg);
90504 if (ret >= 0 && uoss_ptr) {
90505 diff --git a/kernel/smpboot.c b/kernel/smpboot.c
90506 index eb89e18..a4e6792 100644
90507 --- a/kernel/smpboot.c
90508 +++ b/kernel/smpboot.c
90509 @@ -288,7 +288,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
90510 }
90511 smpboot_unpark_thread(plug_thread, cpu);
90512 }
90513 - list_add(&plug_thread->list, &hotplug_threads);
90514 + pax_list_add(&plug_thread->list, &hotplug_threads);
90515 out:
90516 mutex_unlock(&smpboot_threads_lock);
90517 return ret;
90518 @@ -305,7 +305,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
90519 {
90520 get_online_cpus();
90521 mutex_lock(&smpboot_threads_lock);
90522 - list_del(&plug_thread->list);
90523 + pax_list_del(&plug_thread->list);
90524 smpboot_destroy_threads(plug_thread);
90525 mutex_unlock(&smpboot_threads_lock);
90526 put_online_cpus();
90527 diff --git a/kernel/softirq.c b/kernel/softirq.c
90528 index 92f24f5..db41501 100644
90529 --- a/kernel/softirq.c
90530 +++ b/kernel/softirq.c
90531 @@ -53,7 +53,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
90532 EXPORT_SYMBOL(irq_stat);
90533 #endif
90534
90535 -static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
90536 +static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
90537
90538 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
90539
90540 @@ -268,7 +268,7 @@ restart:
90541 kstat_incr_softirqs_this_cpu(vec_nr);
90542
90543 trace_softirq_entry(vec_nr);
90544 - h->action(h);
90545 + h->action();
90546 trace_softirq_exit(vec_nr);
90547 if (unlikely(prev_count != preempt_count())) {
90548 pr_err("huh, entered softirq %u %s %p with preempt_count %08x, exited with %08x?\n",
90549 @@ -428,7 +428,7 @@ void __raise_softirq_irqoff(unsigned int nr)
90550 or_softirq_pending(1UL << nr);
90551 }
90552
90553 -void open_softirq(int nr, void (*action)(struct softirq_action *))
90554 +void __init open_softirq(int nr, void (*action)(void))
90555 {
90556 softirq_vec[nr].action = action;
90557 }
90558 @@ -480,7 +480,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
90559 }
90560 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
90561
90562 -static void tasklet_action(struct softirq_action *a)
90563 +static void tasklet_action(void)
90564 {
90565 struct tasklet_struct *list;
90566
90567 @@ -516,7 +516,7 @@ static void tasklet_action(struct softirq_action *a)
90568 }
90569 }
90570
90571 -static void tasklet_hi_action(struct softirq_action *a)
90572 +static __latent_entropy void tasklet_hi_action(void)
90573 {
90574 struct tasklet_struct *list;
90575
90576 @@ -743,7 +743,7 @@ static struct notifier_block cpu_nfb = {
90577 .notifier_call = cpu_callback
90578 };
90579
90580 -static struct smp_hotplug_thread softirq_threads = {
90581 +static struct smp_hotplug_thread softirq_threads __read_only = {
90582 .store = &ksoftirqd,
90583 .thread_should_run = ksoftirqd_should_run,
90584 .thread_fn = run_ksoftirqd,
90585 diff --git a/kernel/sys.c b/kernel/sys.c
90586 index fba0f29..84400e2 100644
90587 --- a/kernel/sys.c
90588 +++ b/kernel/sys.c
90589 @@ -148,6 +148,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
90590 error = -EACCES;
90591 goto out;
90592 }
90593 +
90594 + if (gr_handle_chroot_setpriority(p, niceval)) {
90595 + error = -EACCES;
90596 + goto out;
90597 + }
90598 +
90599 no_nice = security_task_setnice(p, niceval);
90600 if (no_nice) {
90601 error = no_nice;
90602 @@ -351,6 +357,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
90603 goto error;
90604 }
90605
90606 + if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
90607 + goto error;
90608 +
90609 if (rgid != (gid_t) -1 ||
90610 (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
90611 new->sgid = new->egid;
90612 @@ -386,6 +395,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
90613 old = current_cred();
90614
90615 retval = -EPERM;
90616 +
90617 + if (gr_check_group_change(kgid, kgid, kgid))
90618 + goto error;
90619 +
90620 if (ns_capable(old->user_ns, CAP_SETGID))
90621 new->gid = new->egid = new->sgid = new->fsgid = kgid;
90622 else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
90623 @@ -403,7 +416,7 @@ error:
90624 /*
90625 * change the user struct in a credentials set to match the new UID
90626 */
90627 -static int set_user(struct cred *new)
90628 +int set_user(struct cred *new)
90629 {
90630 struct user_struct *new_user;
90631
90632 @@ -483,6 +496,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
90633 goto error;
90634 }
90635
90636 + if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
90637 + goto error;
90638 +
90639 if (!uid_eq(new->uid, old->uid)) {
90640 retval = set_user(new);
90641 if (retval < 0)
90642 @@ -533,6 +549,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
90643 old = current_cred();
90644
90645 retval = -EPERM;
90646 +
90647 + if (gr_check_crash_uid(kuid))
90648 + goto error;
90649 + if (gr_check_user_change(kuid, kuid, kuid))
90650 + goto error;
90651 +
90652 if (ns_capable(old->user_ns, CAP_SETUID)) {
90653 new->suid = new->uid = kuid;
90654 if (!uid_eq(kuid, old->uid)) {
90655 @@ -602,6 +624,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
90656 goto error;
90657 }
90658
90659 + if (gr_check_user_change(kruid, keuid, INVALID_UID))
90660 + goto error;
90661 +
90662 if (ruid != (uid_t) -1) {
90663 new->uid = kruid;
90664 if (!uid_eq(kruid, old->uid)) {
90665 @@ -684,6 +709,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
90666 goto error;
90667 }
90668
90669 + if (gr_check_group_change(krgid, kegid, INVALID_GID))
90670 + goto error;
90671 +
90672 if (rgid != (gid_t) -1)
90673 new->gid = krgid;
90674 if (egid != (gid_t) -1)
90675 @@ -745,12 +773,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
90676 uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
90677 ns_capable(old->user_ns, CAP_SETUID)) {
90678 if (!uid_eq(kuid, old->fsuid)) {
90679 + if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
90680 + goto error;
90681 +
90682 new->fsuid = kuid;
90683 if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
90684 goto change_okay;
90685 }
90686 }
90687
90688 +error:
90689 abort_creds(new);
90690 return old_fsuid;
90691
90692 @@ -783,12 +815,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
90693 if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->egid) ||
90694 gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
90695 ns_capable(old->user_ns, CAP_SETGID)) {
90696 + if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
90697 + goto error;
90698 +
90699 if (!gid_eq(kgid, old->fsgid)) {
90700 new->fsgid = kgid;
90701 goto change_okay;
90702 }
90703 }
90704
90705 +error:
90706 abort_creds(new);
90707 return old_fsgid;
90708
90709 @@ -1167,19 +1203,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
90710 return -EFAULT;
90711
90712 down_read(&uts_sem);
90713 - error = __copy_to_user(&name->sysname, &utsname()->sysname,
90714 + error = __copy_to_user(name->sysname, &utsname()->sysname,
90715 __OLD_UTS_LEN);
90716 error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
90717 - error |= __copy_to_user(&name->nodename, &utsname()->nodename,
90718 + error |= __copy_to_user(name->nodename, &utsname()->nodename,
90719 __OLD_UTS_LEN);
90720 error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
90721 - error |= __copy_to_user(&name->release, &utsname()->release,
90722 + error |= __copy_to_user(name->release, &utsname()->release,
90723 __OLD_UTS_LEN);
90724 error |= __put_user(0, name->release + __OLD_UTS_LEN);
90725 - error |= __copy_to_user(&name->version, &utsname()->version,
90726 + error |= __copy_to_user(name->version, &utsname()->version,
90727 __OLD_UTS_LEN);
90728 error |= __put_user(0, name->version + __OLD_UTS_LEN);
90729 - error |= __copy_to_user(&name->machine, &utsname()->machine,
90730 + error |= __copy_to_user(name->machine, &utsname()->machine,
90731 __OLD_UTS_LEN);
90732 error |= __put_user(0, name->machine + __OLD_UTS_LEN);
90733 up_read(&uts_sem);
90734 @@ -1381,6 +1417,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
90735 */
90736 new_rlim->rlim_cur = 1;
90737 }
90738 + /* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
90739 + is changed to a lower value. Since tasks can be created by the same
90740 + user in between this limit change and an execve by this task, force
90741 + a recheck only for this task by setting PF_NPROC_EXCEEDED
90742 + */
90743 + if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
90744 + tsk->flags |= PF_NPROC_EXCEEDED;
90745 }
90746 if (!retval) {
90747 if (old_rlim)
90748 diff --git a/kernel/sysctl.c b/kernel/sysctl.c
90749 index 0e0373f..69f5181 100644
90750 --- a/kernel/sysctl.c
90751 +++ b/kernel/sysctl.c
90752 @@ -94,7 +94,6 @@
90753
90754
90755 #if defined(CONFIG_SYSCTL)
90756 -
90757 /* External variables not in a header file. */
90758 extern int max_threads;
90759 extern int suid_dumpable;
90760 @@ -115,19 +114,20 @@ extern int sysctl_nr_trim_pages;
90761
90762 /* Constants used for minimum and maximum */
90763 #ifdef CONFIG_LOCKUP_DETECTOR
90764 -static int sixty = 60;
90765 +static int sixty __read_only = 60;
90766 #endif
90767
90768 -static int __maybe_unused neg_one = -1;
90769 +static int __maybe_unused neg_one __read_only = -1;
90770
90771 -static int zero;
90772 -static int __maybe_unused one = 1;
90773 -static int __maybe_unused two = 2;
90774 -static int __maybe_unused four = 4;
90775 -static unsigned long one_ul = 1;
90776 -static int one_hundred = 100;
90777 +static int zero __read_only = 0;
90778 +static int __maybe_unused one __read_only = 1;
90779 +static int __maybe_unused two __read_only = 2;
90780 +static int __maybe_unused three __read_only = 3;
90781 +static int __maybe_unused four __read_only = 4;
90782 +static unsigned long one_ul __read_only = 1;
90783 +static int one_hundred __read_only = 100;
90784 #ifdef CONFIG_PRINTK
90785 -static int ten_thousand = 10000;
90786 +static int ten_thousand __read_only = 10000;
90787 #endif
90788
90789 /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
90790 @@ -178,10 +178,8 @@ static int proc_taint(struct ctl_table *table, int write,
90791 void __user *buffer, size_t *lenp, loff_t *ppos);
90792 #endif
90793
90794 -#ifdef CONFIG_PRINTK
90795 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
90796 void __user *buffer, size_t *lenp, loff_t *ppos);
90797 -#endif
90798
90799 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
90800 void __user *buffer, size_t *lenp, loff_t *ppos);
90801 @@ -212,6 +210,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write,
90802
90803 #endif
90804
90805 +extern struct ctl_table grsecurity_table[];
90806 +
90807 static struct ctl_table kern_table[];
90808 static struct ctl_table vm_table[];
90809 static struct ctl_table fs_table[];
90810 @@ -226,6 +226,20 @@ extern struct ctl_table epoll_table[];
90811 int sysctl_legacy_va_layout;
90812 #endif
90813
90814 +#ifdef CONFIG_PAX_SOFTMODE
90815 +static ctl_table pax_table[] = {
90816 + {
90817 + .procname = "softmode",
90818 + .data = &pax_softmode,
90819 + .maxlen = sizeof(unsigned int),
90820 + .mode = 0600,
90821 + .proc_handler = &proc_dointvec,
90822 + },
90823 +
90824 + { }
90825 +};
90826 +#endif
90827 +
90828 /* The default sysctl tables: */
90829
90830 static struct ctl_table sysctl_base_table[] = {
90831 @@ -274,6 +288,22 @@ static int max_extfrag_threshold = 1000;
90832 #endif
90833
90834 static struct ctl_table kern_table[] = {
90835 +#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
90836 + {
90837 + .procname = "grsecurity",
90838 + .mode = 0500,
90839 + .child = grsecurity_table,
90840 + },
90841 +#endif
90842 +
90843 +#ifdef CONFIG_PAX_SOFTMODE
90844 + {
90845 + .procname = "pax",
90846 + .mode = 0500,
90847 + .child = pax_table,
90848 + },
90849 +#endif
90850 +
90851 {
90852 .procname = "sched_child_runs_first",
90853 .data = &sysctl_sched_child_runs_first,
90854 @@ -629,7 +659,7 @@ static struct ctl_table kern_table[] = {
90855 .data = &modprobe_path,
90856 .maxlen = KMOD_PATH_LEN,
90857 .mode = 0644,
90858 - .proc_handler = proc_dostring,
90859 + .proc_handler = proc_dostring_modpriv,
90860 },
90861 {
90862 .procname = "modules_disabled",
90863 @@ -796,16 +826,20 @@ static struct ctl_table kern_table[] = {
90864 .extra1 = &zero,
90865 .extra2 = &one,
90866 },
90867 +#endif
90868 {
90869 .procname = "kptr_restrict",
90870 .data = &kptr_restrict,
90871 .maxlen = sizeof(int),
90872 .mode = 0644,
90873 .proc_handler = proc_dointvec_minmax_sysadmin,
90874 +#ifdef CONFIG_GRKERNSEC_HIDESYM
90875 + .extra1 = &two,
90876 +#else
90877 .extra1 = &zero,
90878 +#endif
90879 .extra2 = &two,
90880 },
90881 -#endif
90882 {
90883 .procname = "ngroups_max",
90884 .data = &ngroups_max,
90885 @@ -1050,10 +1084,17 @@ static struct ctl_table kern_table[] = {
90886 */
90887 {
90888 .procname = "perf_event_paranoid",
90889 - .data = &sysctl_perf_event_paranoid,
90890 - .maxlen = sizeof(sysctl_perf_event_paranoid),
90891 + .data = &sysctl_perf_event_legitimately_concerned,
90892 + .maxlen = sizeof(sysctl_perf_event_legitimately_concerned),
90893 .mode = 0644,
90894 - .proc_handler = proc_dointvec,
90895 + /* go ahead, be a hero */
90896 + .proc_handler = proc_dointvec_minmax_sysadmin,
90897 + .extra1 = &neg_one,
90898 +#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
90899 + .extra2 = &three,
90900 +#else
90901 + .extra2 = &two,
90902 +#endif
90903 },
90904 {
90905 .procname = "perf_event_mlock_kb",
90906 @@ -1315,6 +1356,13 @@ static struct ctl_table vm_table[] = {
90907 .proc_handler = proc_dointvec_minmax,
90908 .extra1 = &zero,
90909 },
90910 + {
90911 + .procname = "heap_stack_gap",
90912 + .data = &sysctl_heap_stack_gap,
90913 + .maxlen = sizeof(sysctl_heap_stack_gap),
90914 + .mode = 0644,
90915 + .proc_handler = proc_doulongvec_minmax,
90916 + },
90917 #else
90918 {
90919 .procname = "nr_trim_pages",
90920 @@ -1779,6 +1827,16 @@ int proc_dostring(struct ctl_table *table, int write,
90921 buffer, lenp, ppos);
90922 }
90923
90924 +int proc_dostring_modpriv(struct ctl_table *table, int write,
90925 + void __user *buffer, size_t *lenp, loff_t *ppos)
90926 +{
90927 + if (write && !capable(CAP_SYS_MODULE))
90928 + return -EPERM;
90929 +
90930 + return _proc_do_string(table->data, table->maxlen, write,
90931 + buffer, lenp, ppos);
90932 +}
90933 +
90934 static size_t proc_skip_spaces(char **buf)
90935 {
90936 size_t ret;
90937 @@ -1884,6 +1942,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
90938 len = strlen(tmp);
90939 if (len > *size)
90940 len = *size;
90941 + if (len > sizeof(tmp))
90942 + len = sizeof(tmp);
90943 if (copy_to_user(*buf, tmp, len))
90944 return -EFAULT;
90945 *size -= len;
90946 @@ -2048,7 +2108,7 @@ int proc_dointvec(struct ctl_table *table, int write,
90947 static int proc_taint(struct ctl_table *table, int write,
90948 void __user *buffer, size_t *lenp, loff_t *ppos)
90949 {
90950 - struct ctl_table t;
90951 + ctl_table_no_const t;
90952 unsigned long tmptaint = get_taint();
90953 int err;
90954
90955 @@ -2076,7 +2136,6 @@ static int proc_taint(struct ctl_table *table, int write,
90956 return err;
90957 }
90958
90959 -#ifdef CONFIG_PRINTK
90960 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
90961 void __user *buffer, size_t *lenp, loff_t *ppos)
90962 {
90963 @@ -2085,7 +2144,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
90964
90965 return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
90966 }
90967 -#endif
90968
90969 struct do_proc_dointvec_minmax_conv_param {
90970 int *min;
90971 @@ -2632,6 +2690,12 @@ int proc_dostring(struct ctl_table *table, int write,
90972 return -ENOSYS;
90973 }
90974
90975 +int proc_dostring_modpriv(struct ctl_table *table, int write,
90976 + void __user *buffer, size_t *lenp, loff_t *ppos)
90977 +{
90978 + return -ENOSYS;
90979 +}
90980 +
90981 int proc_dointvec(struct ctl_table *table, int write,
90982 void __user *buffer, size_t *lenp, loff_t *ppos)
90983 {
90984 @@ -2688,5 +2752,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
90985 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
90986 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
90987 EXPORT_SYMBOL(proc_dostring);
90988 +EXPORT_SYMBOL(proc_dostring_modpriv);
90989 EXPORT_SYMBOL(proc_doulongvec_minmax);
90990 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
90991 diff --git a/kernel/taskstats.c b/kernel/taskstats.c
90992 index 13d2f7c..c93d0b0 100644
90993 --- a/kernel/taskstats.c
90994 +++ b/kernel/taskstats.c
90995 @@ -28,9 +28,12 @@
90996 #include <linux/fs.h>
90997 #include <linux/file.h>
90998 #include <linux/pid_namespace.h>
90999 +#include <linux/grsecurity.h>
91000 #include <net/genetlink.h>
91001 #include <linux/atomic.h>
91002
91003 +extern int gr_is_taskstats_denied(int pid);
91004 +
91005 /*
91006 * Maximum length of a cpumask that can be specified in
91007 * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
91008 @@ -576,6 +579,9 @@ err:
91009
91010 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
91011 {
91012 + if (gr_is_taskstats_denied(current->pid))
91013 + return -EACCES;
91014 +
91015 if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
91016 return cmd_attr_register_cpumask(info);
91017 else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
91018 diff --git a/kernel/time.c b/kernel/time.c
91019 index 7c7964c..2a0d412 100644
91020 --- a/kernel/time.c
91021 +++ b/kernel/time.c
91022 @@ -172,6 +172,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
91023 return error;
91024
91025 if (tz) {
91026 + /* we log in do_settimeofday called below, so don't log twice
91027 + */
91028 + if (!tv)
91029 + gr_log_timechange();
91030 +
91031 sys_tz = *tz;
91032 update_vsyscall_tz();
91033 if (firsttime) {
91034 diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
91035 index 88c9c65..7497ebc 100644
91036 --- a/kernel/time/alarmtimer.c
91037 +++ b/kernel/time/alarmtimer.c
91038 @@ -795,7 +795,7 @@ static int __init alarmtimer_init(void)
91039 struct platform_device *pdev;
91040 int error = 0;
91041 int i;
91042 - struct k_clock alarm_clock = {
91043 + static struct k_clock alarm_clock = {
91044 .clock_getres = alarm_clock_getres,
91045 .clock_get = alarm_clock_get,
91046 .timer_create = alarm_timer_create,
91047 diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
91048 index f7df8ea..0810193 100644
91049 --- a/kernel/time/timekeeping.c
91050 +++ b/kernel/time/timekeeping.c
91051 @@ -15,6 +15,7 @@
91052 #include <linux/init.h>
91053 #include <linux/mm.h>
91054 #include <linux/sched.h>
91055 +#include <linux/grsecurity.h>
91056 #include <linux/syscore_ops.h>
91057 #include <linux/clocksource.h>
91058 #include <linux/jiffies.h>
91059 @@ -502,6 +503,8 @@ int do_settimeofday(const struct timespec *tv)
91060 if (!timespec_valid_strict(tv))
91061 return -EINVAL;
91062
91063 + gr_log_timechange();
91064 +
91065 raw_spin_lock_irqsave(&timekeeper_lock, flags);
91066 write_seqcount_begin(&timekeeper_seq);
91067
91068 diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
91069 index 61ed862..3b52c65 100644
91070 --- a/kernel/time/timer_list.c
91071 +++ b/kernel/time/timer_list.c
91072 @@ -45,12 +45,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
91073
91074 static void print_name_offset(struct seq_file *m, void *sym)
91075 {
91076 +#ifdef CONFIG_GRKERNSEC_HIDESYM
91077 + SEQ_printf(m, "<%p>", NULL);
91078 +#else
91079 char symname[KSYM_NAME_LEN];
91080
91081 if (lookup_symbol_name((unsigned long)sym, symname) < 0)
91082 SEQ_printf(m, "<%pK>", sym);
91083 else
91084 SEQ_printf(m, "%s", symname);
91085 +#endif
91086 }
91087
91088 static void
91089 @@ -119,7 +123,11 @@ next_one:
91090 static void
91091 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
91092 {
91093 +#ifdef CONFIG_GRKERNSEC_HIDESYM
91094 + SEQ_printf(m, " .base: %p\n", NULL);
91095 +#else
91096 SEQ_printf(m, " .base: %pK\n", base);
91097 +#endif
91098 SEQ_printf(m, " .index: %d\n",
91099 base->index);
91100 SEQ_printf(m, " .resolution: %Lu nsecs\n",
91101 @@ -362,7 +370,11 @@ static int __init init_timer_list_procfs(void)
91102 {
91103 struct proc_dir_entry *pe;
91104
91105 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
91106 + pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
91107 +#else
91108 pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
91109 +#endif
91110 if (!pe)
91111 return -ENOMEM;
91112 return 0;
91113 diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
91114 index 1fb08f2..ca4bb1e 100644
91115 --- a/kernel/time/timer_stats.c
91116 +++ b/kernel/time/timer_stats.c
91117 @@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
91118 static unsigned long nr_entries;
91119 static struct entry entries[MAX_ENTRIES];
91120
91121 -static atomic_t overflow_count;
91122 +static atomic_unchecked_t overflow_count;
91123
91124 /*
91125 * The entries are in a hash-table, for fast lookup:
91126 @@ -140,7 +140,7 @@ static void reset_entries(void)
91127 nr_entries = 0;
91128 memset(entries, 0, sizeof(entries));
91129 memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
91130 - atomic_set(&overflow_count, 0);
91131 + atomic_set_unchecked(&overflow_count, 0);
91132 }
91133
91134 static struct entry *alloc_entry(void)
91135 @@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
91136 if (likely(entry))
91137 entry->count++;
91138 else
91139 - atomic_inc(&overflow_count);
91140 + atomic_inc_unchecked(&overflow_count);
91141
91142 out_unlock:
91143 raw_spin_unlock_irqrestore(lock, flags);
91144 @@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
91145
91146 static void print_name_offset(struct seq_file *m, unsigned long addr)
91147 {
91148 +#ifdef CONFIG_GRKERNSEC_HIDESYM
91149 + seq_printf(m, "<%p>", NULL);
91150 +#else
91151 char symname[KSYM_NAME_LEN];
91152
91153 if (lookup_symbol_name(addr, symname) < 0)
91154 - seq_printf(m, "<%p>", (void *)addr);
91155 + seq_printf(m, "<%pK>", (void *)addr);
91156 else
91157 seq_printf(m, "%s", symname);
91158 +#endif
91159 }
91160
91161 static int tstats_show(struct seq_file *m, void *v)
91162 @@ -300,8 +304,8 @@ static int tstats_show(struct seq_file *m, void *v)
91163
91164 seq_puts(m, "Timer Stats Version: v0.3\n");
91165 seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
91166 - if (atomic_read(&overflow_count))
91167 - seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
91168 + if (atomic_read_unchecked(&overflow_count))
91169 + seq_printf(m, "Overflow: %d entries\n", atomic_read_unchecked(&overflow_count));
91170 seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
91171
91172 for (i = 0; i < nr_entries; i++) {
91173 @@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
91174 {
91175 struct proc_dir_entry *pe;
91176
91177 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
91178 + pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
91179 +#else
91180 pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
91181 +#endif
91182 if (!pe)
91183 return -ENOMEM;
91184 return 0;
91185 diff --git a/kernel/timer.c b/kernel/timer.c
91186 index 3bb01a3..0e7760e 100644
91187 --- a/kernel/timer.c
91188 +++ b/kernel/timer.c
91189 @@ -1393,7 +1393,7 @@ void update_process_times(int user_tick)
91190 /*
91191 * This function runs timers and the timer-tq in bottom half context.
91192 */
91193 -static void run_timer_softirq(struct softirq_action *h)
91194 +static __latent_entropy void run_timer_softirq(void)
91195 {
91196 struct tvec_base *base = __this_cpu_read(tvec_bases);
91197
91198 @@ -1456,7 +1456,7 @@ static void process_timeout(unsigned long __data)
91199 *
91200 * In all cases the return value is guaranteed to be non-negative.
91201 */
91202 -signed long __sched schedule_timeout(signed long timeout)
91203 +signed long __sched __intentional_overflow(-1) schedule_timeout(signed long timeout)
91204 {
91205 struct timer_list timer;
91206 unsigned long expire;
91207 diff --git a/kernel/torture.c b/kernel/torture.c
91208 index acc9afc..4f9eb49 100644
91209 --- a/kernel/torture.c
91210 +++ b/kernel/torture.c
91211 @@ -489,7 +489,7 @@ static int torture_shutdown_notify(struct notifier_block *unused1,
91212 mutex_lock(&fullstop_mutex);
91213 if (ACCESS_ONCE(fullstop) == FULLSTOP_DONTSTOP) {
91214 VERBOSE_TOROUT_STRING("Unscheduled system shutdown detected");
91215 - ACCESS_ONCE(fullstop) = FULLSTOP_SHUTDOWN;
91216 + ACCESS_ONCE_RW(fullstop) = FULLSTOP_SHUTDOWN;
91217 } else {
91218 pr_warn("Concurrent rmmod and shutdown illegal!\n");
91219 }
91220 @@ -551,11 +551,11 @@ static int torture_stutter(void *arg)
91221 do {
91222 if (!torture_must_stop()) {
91223 schedule_timeout_interruptible(stutter);
91224 - ACCESS_ONCE(stutter_pause_test) = 1;
91225 + ACCESS_ONCE_RW(stutter_pause_test) = 1;
91226 }
91227 if (!torture_must_stop())
91228 schedule_timeout_interruptible(stutter);
91229 - ACCESS_ONCE(stutter_pause_test) = 0;
91230 + ACCESS_ONCE_RW(stutter_pause_test) = 0;
91231 torture_shutdown_absorb("torture_stutter");
91232 } while (!torture_must_stop());
91233 torture_kthread_stopping("torture_stutter");
91234 @@ -636,7 +636,7 @@ bool torture_cleanup(void)
91235 schedule_timeout_uninterruptible(10);
91236 return true;
91237 }
91238 - ACCESS_ONCE(fullstop) = FULLSTOP_RMMOD;
91239 + ACCESS_ONCE_RW(fullstop) = FULLSTOP_RMMOD;
91240 mutex_unlock(&fullstop_mutex);
91241 torture_shutdown_cleanup();
91242 torture_shuffle_cleanup();
91243 diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
91244 index c1bd4ad..4b861dc 100644
91245 --- a/kernel/trace/blktrace.c
91246 +++ b/kernel/trace/blktrace.c
91247 @@ -328,7 +328,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
91248 struct blk_trace *bt = filp->private_data;
91249 char buf[16];
91250
91251 - snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
91252 + snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
91253
91254 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
91255 }
91256 @@ -386,7 +386,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
91257 return 1;
91258
91259 bt = buf->chan->private_data;
91260 - atomic_inc(&bt->dropped);
91261 + atomic_inc_unchecked(&bt->dropped);
91262 return 0;
91263 }
91264
91265 @@ -487,7 +487,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
91266
91267 bt->dir = dir;
91268 bt->dev = dev;
91269 - atomic_set(&bt->dropped, 0);
91270 + atomic_set_unchecked(&bt->dropped, 0);
91271 INIT_LIST_HEAD(&bt->running_list);
91272
91273 ret = -EIO;
91274 diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
91275 index 4a54a25..7ca9c89 100644
91276 --- a/kernel/trace/ftrace.c
91277 +++ b/kernel/trace/ftrace.c
91278 @@ -1960,12 +1960,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
91279 if (unlikely(ftrace_disabled))
91280 return 0;
91281
91282 + ret = ftrace_arch_code_modify_prepare();
91283 + FTRACE_WARN_ON(ret);
91284 + if (ret)
91285 + return 0;
91286 +
91287 ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
91288 + FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
91289 if (ret) {
91290 ftrace_bug(ret, ip);
91291 - return 0;
91292 }
91293 - return 1;
91294 + return ret ? 0 : 1;
91295 }
91296
91297 /*
91298 @@ -4195,8 +4200,10 @@ static int ftrace_process_locs(struct module *mod,
91299 if (!count)
91300 return 0;
91301
91302 + pax_open_kernel();
91303 sort(start, count, sizeof(*start),
91304 ftrace_cmp_ips, ftrace_swap_ips);
91305 + pax_close_kernel();
91306
91307 start_pg = ftrace_allocate_pages(count);
91308 if (!start_pg)
91309 @@ -4908,8 +4915,6 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
91310 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
91311
91312 static int ftrace_graph_active;
91313 -static struct notifier_block ftrace_suspend_notifier;
91314 -
91315 int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
91316 {
91317 return 0;
91318 @@ -5085,6 +5090,10 @@ static void update_function_graph_func(void)
91319 ftrace_graph_entry = ftrace_graph_entry_test;
91320 }
91321
91322 +static struct notifier_block ftrace_suspend_notifier = {
91323 + .notifier_call = ftrace_suspend_notifier_call
91324 +};
91325 +
91326 int register_ftrace_graph(trace_func_graph_ret_t retfunc,
91327 trace_func_graph_ent_t entryfunc)
91328 {
91329 @@ -5098,7 +5107,6 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
91330 goto out;
91331 }
91332
91333 - ftrace_suspend_notifier.notifier_call = ftrace_suspend_notifier_call;
91334 register_pm_notifier(&ftrace_suspend_notifier);
91335
91336 ftrace_graph_active++;
91337 diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
91338 index c634868..00d0d19 100644
91339 --- a/kernel/trace/ring_buffer.c
91340 +++ b/kernel/trace/ring_buffer.c
91341 @@ -352,9 +352,9 @@ struct buffer_data_page {
91342 */
91343 struct buffer_page {
91344 struct list_head list; /* list of buffer pages */
91345 - local_t write; /* index for next write */
91346 + local_unchecked_t write; /* index for next write */
91347 unsigned read; /* index for next read */
91348 - local_t entries; /* entries on this page */
91349 + local_unchecked_t entries; /* entries on this page */
91350 unsigned long real_end; /* real end of data */
91351 struct buffer_data_page *page; /* Actual data page */
91352 };
91353 @@ -473,8 +473,8 @@ struct ring_buffer_per_cpu {
91354 unsigned long last_overrun;
91355 local_t entries_bytes;
91356 local_t entries;
91357 - local_t overrun;
91358 - local_t commit_overrun;
91359 + local_unchecked_t overrun;
91360 + local_unchecked_t commit_overrun;
91361 local_t dropped_events;
91362 local_t committing;
91363 local_t commits;
91364 @@ -992,8 +992,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
91365 *
91366 * We add a counter to the write field to denote this.
91367 */
91368 - old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
91369 - old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
91370 + old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
91371 + old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
91372
91373 /*
91374 * Just make sure we have seen our old_write and synchronize
91375 @@ -1021,8 +1021,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
91376 * cmpxchg to only update if an interrupt did not already
91377 * do it for us. If the cmpxchg fails, we don't care.
91378 */
91379 - (void)local_cmpxchg(&next_page->write, old_write, val);
91380 - (void)local_cmpxchg(&next_page->entries, old_entries, eval);
91381 + (void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
91382 + (void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
91383
91384 /*
91385 * No need to worry about races with clearing out the commit.
91386 @@ -1389,12 +1389,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
91387
91388 static inline unsigned long rb_page_entries(struct buffer_page *bpage)
91389 {
91390 - return local_read(&bpage->entries) & RB_WRITE_MASK;
91391 + return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
91392 }
91393
91394 static inline unsigned long rb_page_write(struct buffer_page *bpage)
91395 {
91396 - return local_read(&bpage->write) & RB_WRITE_MASK;
91397 + return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
91398 }
91399
91400 static int
91401 @@ -1489,7 +1489,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages)
91402 * bytes consumed in ring buffer from here.
91403 * Increment overrun to account for the lost events.
91404 */
91405 - local_add(page_entries, &cpu_buffer->overrun);
91406 + local_add_unchecked(page_entries, &cpu_buffer->overrun);
91407 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
91408 }
91409
91410 @@ -2067,7 +2067,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
91411 * it is our responsibility to update
91412 * the counters.
91413 */
91414 - local_add(entries, &cpu_buffer->overrun);
91415 + local_add_unchecked(entries, &cpu_buffer->overrun);
91416 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
91417
91418 /*
91419 @@ -2217,7 +2217,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
91420 if (tail == BUF_PAGE_SIZE)
91421 tail_page->real_end = 0;
91422
91423 - local_sub(length, &tail_page->write);
91424 + local_sub_unchecked(length, &tail_page->write);
91425 return;
91426 }
91427
91428 @@ -2252,7 +2252,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
91429 rb_event_set_padding(event);
91430
91431 /* Set the write back to the previous setting */
91432 - local_sub(length, &tail_page->write);
91433 + local_sub_unchecked(length, &tail_page->write);
91434 return;
91435 }
91436
91437 @@ -2264,7 +2264,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
91438
91439 /* Set write to end of buffer */
91440 length = (tail + length) - BUF_PAGE_SIZE;
91441 - local_sub(length, &tail_page->write);
91442 + local_sub_unchecked(length, &tail_page->write);
91443 }
91444
91445 /*
91446 @@ -2290,7 +2290,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
91447 * about it.
91448 */
91449 if (unlikely(next_page == commit_page)) {
91450 - local_inc(&cpu_buffer->commit_overrun);
91451 + local_inc_unchecked(&cpu_buffer->commit_overrun);
91452 goto out_reset;
91453 }
91454
91455 @@ -2346,7 +2346,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
91456 cpu_buffer->tail_page) &&
91457 (cpu_buffer->commit_page ==
91458 cpu_buffer->reader_page))) {
91459 - local_inc(&cpu_buffer->commit_overrun);
91460 + local_inc_unchecked(&cpu_buffer->commit_overrun);
91461 goto out_reset;
91462 }
91463 }
91464 @@ -2394,7 +2394,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
91465 length += RB_LEN_TIME_EXTEND;
91466
91467 tail_page = cpu_buffer->tail_page;
91468 - write = local_add_return(length, &tail_page->write);
91469 + write = local_add_return_unchecked(length, &tail_page->write);
91470
91471 /* set write to only the index of the write */
91472 write &= RB_WRITE_MASK;
91473 @@ -2418,7 +2418,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
91474 kmemcheck_annotate_bitfield(event, bitfield);
91475 rb_update_event(cpu_buffer, event, length, add_timestamp, delta);
91476
91477 - local_inc(&tail_page->entries);
91478 + local_inc_unchecked(&tail_page->entries);
91479
91480 /*
91481 * If this is the first commit on the page, then update
91482 @@ -2451,7 +2451,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
91483
91484 if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
91485 unsigned long write_mask =
91486 - local_read(&bpage->write) & ~RB_WRITE_MASK;
91487 + local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
91488 unsigned long event_length = rb_event_length(event);
91489 /*
91490 * This is on the tail page. It is possible that
91491 @@ -2461,7 +2461,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
91492 */
91493 old_index += write_mask;
91494 new_index += write_mask;
91495 - index = local_cmpxchg(&bpage->write, old_index, new_index);
91496 + index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
91497 if (index == old_index) {
91498 /* update counters */
91499 local_sub(event_length, &cpu_buffer->entries_bytes);
91500 @@ -2853,7 +2853,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
91501
91502 /* Do the likely case first */
91503 if (likely(bpage->page == (void *)addr)) {
91504 - local_dec(&bpage->entries);
91505 + local_dec_unchecked(&bpage->entries);
91506 return;
91507 }
91508
91509 @@ -2865,7 +2865,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
91510 start = bpage;
91511 do {
91512 if (bpage->page == (void *)addr) {
91513 - local_dec(&bpage->entries);
91514 + local_dec_unchecked(&bpage->entries);
91515 return;
91516 }
91517 rb_inc_page(cpu_buffer, &bpage);
91518 @@ -3149,7 +3149,7 @@ static inline unsigned long
91519 rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
91520 {
91521 return local_read(&cpu_buffer->entries) -
91522 - (local_read(&cpu_buffer->overrun) + cpu_buffer->read);
91523 + (local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
91524 }
91525
91526 /**
91527 @@ -3238,7 +3238,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
91528 return 0;
91529
91530 cpu_buffer = buffer->buffers[cpu];
91531 - ret = local_read(&cpu_buffer->overrun);
91532 + ret = local_read_unchecked(&cpu_buffer->overrun);
91533
91534 return ret;
91535 }
91536 @@ -3261,7 +3261,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
91537 return 0;
91538
91539 cpu_buffer = buffer->buffers[cpu];
91540 - ret = local_read(&cpu_buffer->commit_overrun);
91541 + ret = local_read_unchecked(&cpu_buffer->commit_overrun);
91542
91543 return ret;
91544 }
91545 @@ -3346,7 +3346,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
91546 /* if you care about this being correct, lock the buffer */
91547 for_each_buffer_cpu(buffer, cpu) {
91548 cpu_buffer = buffer->buffers[cpu];
91549 - overruns += local_read(&cpu_buffer->overrun);
91550 + overruns += local_read_unchecked(&cpu_buffer->overrun);
91551 }
91552
91553 return overruns;
91554 @@ -3522,8 +3522,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
91555 /*
91556 * Reset the reader page to size zero.
91557 */
91558 - local_set(&cpu_buffer->reader_page->write, 0);
91559 - local_set(&cpu_buffer->reader_page->entries, 0);
91560 + local_set_unchecked(&cpu_buffer->reader_page->write, 0);
91561 + local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
91562 local_set(&cpu_buffer->reader_page->page->commit, 0);
91563 cpu_buffer->reader_page->real_end = 0;
91564
91565 @@ -3557,7 +3557,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
91566 * want to compare with the last_overrun.
91567 */
91568 smp_mb();
91569 - overwrite = local_read(&(cpu_buffer->overrun));
91570 + overwrite = local_read_unchecked(&(cpu_buffer->overrun));
91571
91572 /*
91573 * Here's the tricky part.
91574 @@ -4127,8 +4127,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
91575
91576 cpu_buffer->head_page
91577 = list_entry(cpu_buffer->pages, struct buffer_page, list);
91578 - local_set(&cpu_buffer->head_page->write, 0);
91579 - local_set(&cpu_buffer->head_page->entries, 0);
91580 + local_set_unchecked(&cpu_buffer->head_page->write, 0);
91581 + local_set_unchecked(&cpu_buffer->head_page->entries, 0);
91582 local_set(&cpu_buffer->head_page->page->commit, 0);
91583
91584 cpu_buffer->head_page->read = 0;
91585 @@ -4138,14 +4138,14 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
91586
91587 INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
91588 INIT_LIST_HEAD(&cpu_buffer->new_pages);
91589 - local_set(&cpu_buffer->reader_page->write, 0);
91590 - local_set(&cpu_buffer->reader_page->entries, 0);
91591 + local_set_unchecked(&cpu_buffer->reader_page->write, 0);
91592 + local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
91593 local_set(&cpu_buffer->reader_page->page->commit, 0);
91594 cpu_buffer->reader_page->read = 0;
91595
91596 local_set(&cpu_buffer->entries_bytes, 0);
91597 - local_set(&cpu_buffer->overrun, 0);
91598 - local_set(&cpu_buffer->commit_overrun, 0);
91599 + local_set_unchecked(&cpu_buffer->overrun, 0);
91600 + local_set_unchecked(&cpu_buffer->commit_overrun, 0);
91601 local_set(&cpu_buffer->dropped_events, 0);
91602 local_set(&cpu_buffer->entries, 0);
91603 local_set(&cpu_buffer->committing, 0);
91604 @@ -4550,8 +4550,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
91605 rb_init_page(bpage);
91606 bpage = reader->page;
91607 reader->page = *data_page;
91608 - local_set(&reader->write, 0);
91609 - local_set(&reader->entries, 0);
91610 + local_set_unchecked(&reader->write, 0);
91611 + local_set_unchecked(&reader->entries, 0);
91612 reader->read = 0;
91613 *data_page = bpage;
91614
91615 diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
91616 index 1848dc6..5fc244c 100644
91617 --- a/kernel/trace/trace.c
91618 +++ b/kernel/trace/trace.c
91619 @@ -3447,7 +3447,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
91620 return 0;
91621 }
91622
91623 -int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled)
91624 +int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled)
91625 {
91626 /* do nothing if flag is already set */
91627 if (!!(trace_flags & mask) == !!enabled)
91628 diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
91629 index 2e29d7b..61367d7 100644
91630 --- a/kernel/trace/trace.h
91631 +++ b/kernel/trace/trace.h
91632 @@ -1264,7 +1264,7 @@ extern const char *__stop___tracepoint_str[];
91633 void trace_printk_init_buffers(void);
91634 void trace_printk_start_comm(void);
91635 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
91636 -int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
91637 +int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled);
91638
91639 /*
91640 * Normal trace_printk() and friends allocates special buffers
91641 diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
91642 index 26dc348..8708ca7 100644
91643 --- a/kernel/trace/trace_clock.c
91644 +++ b/kernel/trace/trace_clock.c
91645 @@ -123,7 +123,7 @@ u64 notrace trace_clock_global(void)
91646 return now;
91647 }
91648
91649 -static atomic64_t trace_counter;
91650 +static atomic64_unchecked_t trace_counter;
91651
91652 /*
91653 * trace_clock_counter(): simply an atomic counter.
91654 @@ -132,5 +132,5 @@ static atomic64_t trace_counter;
91655 */
91656 u64 notrace trace_clock_counter(void)
91657 {
91658 - return atomic64_add_return(1, &trace_counter);
91659 + return atomic64_inc_return_unchecked(&trace_counter);
91660 }
91661 diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
91662 index 3ddfd8f..41a10fe 100644
91663 --- a/kernel/trace/trace_events.c
91664 +++ b/kernel/trace/trace_events.c
91665 @@ -1718,7 +1718,6 @@ __trace_early_add_new_event(struct ftrace_event_call *call,
91666 return 0;
91667 }
91668
91669 -struct ftrace_module_file_ops;
91670 static void __add_event_to_tracers(struct ftrace_event_call *call);
91671
91672 /* Add an additional event_call dynamically */
91673 diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
91674 index 0abd9b8..6a663a2 100644
91675 --- a/kernel/trace/trace_mmiotrace.c
91676 +++ b/kernel/trace/trace_mmiotrace.c
91677 @@ -24,7 +24,7 @@ struct header_iter {
91678 static struct trace_array *mmio_trace_array;
91679 static bool overrun_detected;
91680 static unsigned long prev_overruns;
91681 -static atomic_t dropped_count;
91682 +static atomic_unchecked_t dropped_count;
91683
91684 static void mmio_reset_data(struct trace_array *tr)
91685 {
91686 @@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter)
91687
91688 static unsigned long count_overruns(struct trace_iterator *iter)
91689 {
91690 - unsigned long cnt = atomic_xchg(&dropped_count, 0);
91691 + unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
91692 unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer);
91693
91694 if (over > prev_overruns)
91695 @@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
91696 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
91697 sizeof(*entry), 0, pc);
91698 if (!event) {
91699 - atomic_inc(&dropped_count);
91700 + atomic_inc_unchecked(&dropped_count);
91701 return;
91702 }
91703 entry = ring_buffer_event_data(event);
91704 @@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
91705 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
91706 sizeof(*entry), 0, pc);
91707 if (!event) {
91708 - atomic_inc(&dropped_count);
91709 + atomic_inc_unchecked(&dropped_count);
91710 return;
91711 }
91712 entry = ring_buffer_event_data(event);
91713 diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
91714 index a436de1..f64dde2 100644
91715 --- a/kernel/trace/trace_output.c
91716 +++ b/kernel/trace/trace_output.c
91717 @@ -294,7 +294,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
91718
91719 p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len);
91720 if (!IS_ERR(p)) {
91721 - p = mangle_path(s->buffer + s->len, p, "\n");
91722 + p = mangle_path(s->buffer + s->len, p, "\n\\");
91723 if (p) {
91724 s->len = p - s->buffer;
91725 return 1;
91726 @@ -939,14 +939,16 @@ int register_ftrace_event(struct trace_event *event)
91727 goto out;
91728 }
91729
91730 + pax_open_kernel();
91731 if (event->funcs->trace == NULL)
91732 - event->funcs->trace = trace_nop_print;
91733 + *(void **)&event->funcs->trace = trace_nop_print;
91734 if (event->funcs->raw == NULL)
91735 - event->funcs->raw = trace_nop_print;
91736 + *(void **)&event->funcs->raw = trace_nop_print;
91737 if (event->funcs->hex == NULL)
91738 - event->funcs->hex = trace_nop_print;
91739 + *(void **)&event->funcs->hex = trace_nop_print;
91740 if (event->funcs->binary == NULL)
91741 - event->funcs->binary = trace_nop_print;
91742 + *(void **)&event->funcs->binary = trace_nop_print;
91743 + pax_close_kernel();
91744
91745 key = event->type & (EVENT_HASHSIZE - 1);
91746
91747 diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
91748 index 21b320e..40607bc 100644
91749 --- a/kernel/trace/trace_stack.c
91750 +++ b/kernel/trace/trace_stack.c
91751 @@ -69,7 +69,7 @@ check_stack(unsigned long ip, unsigned long *stack)
91752 return;
91753
91754 /* we do not handle interrupt stacks yet */
91755 - if (!object_is_on_stack(stack))
91756 + if (!object_starts_on_stack(stack))
91757 return;
91758
91759 local_irq_save(flags);
91760 diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
91761 index bf71b4b..04dee68 100644
91762 --- a/kernel/user_namespace.c
91763 +++ b/kernel/user_namespace.c
91764 @@ -82,6 +82,21 @@ int create_user_ns(struct cred *new)
91765 !kgid_has_mapping(parent_ns, group))
91766 return -EPERM;
91767
91768 +#ifdef CONFIG_GRKERNSEC
91769 + /*
91770 + * This doesn't really inspire confidence:
91771 + * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
91772 + * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
91773 + * Increases kernel attack surface in areas developers
91774 + * previously cared little about ("low importance due
91775 + * to requiring "root" capability")
91776 + * To be removed when this code receives *proper* review
91777 + */
91778 + if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
91779 + !capable(CAP_SETGID))
91780 + return -EPERM;
91781 +#endif
91782 +
91783 ns = kmem_cache_zalloc(user_ns_cachep, GFP_KERNEL);
91784 if (!ns)
91785 return -ENOMEM;
91786 @@ -865,7 +880,7 @@ static int userns_install(struct nsproxy *nsproxy, void *ns)
91787 if (atomic_read(&current->mm->mm_users) > 1)
91788 return -EINVAL;
91789
91790 - if (current->fs->users != 1)
91791 + if (atomic_read(&current->fs->users) != 1)
91792 return -EINVAL;
91793
91794 if (!ns_capable(user_ns, CAP_SYS_ADMIN))
91795 diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
91796 index 4f69f9a..7c6f8f8 100644
91797 --- a/kernel/utsname_sysctl.c
91798 +++ b/kernel/utsname_sysctl.c
91799 @@ -47,7 +47,7 @@ static void put_uts(ctl_table *table, int write, void *which)
91800 static int proc_do_uts_string(ctl_table *table, int write,
91801 void __user *buffer, size_t *lenp, loff_t *ppos)
91802 {
91803 - struct ctl_table uts_table;
91804 + ctl_table_no_const uts_table;
91805 int r;
91806 memcpy(&uts_table, table, sizeof(uts_table));
91807 uts_table.data = get_uts(table, write);
91808 diff --git a/kernel/watchdog.c b/kernel/watchdog.c
91809 index 30e4822..dd2b854 100644
91810 --- a/kernel/watchdog.c
91811 +++ b/kernel/watchdog.c
91812 @@ -479,7 +479,7 @@ static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
91813 static void watchdog_nmi_disable(unsigned int cpu) { return; }
91814 #endif /* CONFIG_HARDLOCKUP_DETECTOR */
91815
91816 -static struct smp_hotplug_thread watchdog_threads = {
91817 +static struct smp_hotplug_thread watchdog_threads __read_only = {
91818 .store = &softlockup_watchdog,
91819 .thread_should_run = watchdog_should_run,
91820 .thread_fn = watchdog,
91821 diff --git a/kernel/workqueue.c b/kernel/workqueue.c
91822 index 8edc8718..b6a70b9 100644
91823 --- a/kernel/workqueue.c
91824 +++ b/kernel/workqueue.c
91825 @@ -4709,7 +4709,7 @@ static void rebind_workers(struct worker_pool *pool)
91826 WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
91827 worker_flags |= WORKER_REBOUND;
91828 worker_flags &= ~WORKER_UNBOUND;
91829 - ACCESS_ONCE(worker->flags) = worker_flags;
91830 + ACCESS_ONCE_RW(worker->flags) = worker_flags;
91831 }
91832
91833 spin_unlock_irq(&pool->lock);
91834 diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
91835 index 819ac51..1c8a65e 100644
91836 --- a/lib/Kconfig.debug
91837 +++ b/lib/Kconfig.debug
91838 @@ -853,7 +853,7 @@ config DEBUG_MUTEXES
91839
91840 config DEBUG_WW_MUTEX_SLOWPATH
91841 bool "Wait/wound mutex debugging: Slowpath testing"
91842 - depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
91843 + depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
91844 select DEBUG_LOCK_ALLOC
91845 select DEBUG_SPINLOCK
91846 select DEBUG_MUTEXES
91847 @@ -866,7 +866,7 @@ config DEBUG_WW_MUTEX_SLOWPATH
91848
91849 config DEBUG_LOCK_ALLOC
91850 bool "Lock debugging: detect incorrect freeing of live locks"
91851 - depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
91852 + depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
91853 select DEBUG_SPINLOCK
91854 select DEBUG_MUTEXES
91855 select LOCKDEP
91856 @@ -880,7 +880,7 @@ config DEBUG_LOCK_ALLOC
91857
91858 config PROVE_LOCKING
91859 bool "Lock debugging: prove locking correctness"
91860 - depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
91861 + depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
91862 select LOCKDEP
91863 select DEBUG_SPINLOCK
91864 select DEBUG_MUTEXES
91865 @@ -931,7 +931,7 @@ config LOCKDEP
91866
91867 config LOCK_STAT
91868 bool "Lock usage statistics"
91869 - depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
91870 + depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
91871 select LOCKDEP
91872 select DEBUG_SPINLOCK
91873 select DEBUG_MUTEXES
91874 @@ -1403,6 +1403,7 @@ config LATENCYTOP
91875 depends on DEBUG_KERNEL
91876 depends on STACKTRACE_SUPPORT
91877 depends on PROC_FS
91878 + depends on !GRKERNSEC_HIDESYM
91879 select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
91880 select KALLSYMS
91881 select KALLSYMS_ALL
91882 @@ -1419,7 +1420,7 @@ config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
91883 config DEBUG_STRICT_USER_COPY_CHECKS
91884 bool "Strict user copy size checks"
91885 depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
91886 - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
91887 + depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
91888 help
91889 Enabling this option turns a certain set of sanity checks for user
91890 copy operations into compile time failures.
91891 @@ -1538,7 +1539,7 @@ endmenu # runtime tests
91892
91893 config PROVIDE_OHCI1394_DMA_INIT
91894 bool "Remote debugging over FireWire early on boot"
91895 - depends on PCI && X86
91896 + depends on PCI && X86 && !GRKERNSEC
91897 help
91898 If you want to debug problems which hang or crash the kernel early
91899 on boot and the crashing machine has a FireWire port, you can use
91900 diff --git a/lib/Makefile b/lib/Makefile
91901 index 0cd7b68..e149e37 100644
91902 --- a/lib/Makefile
91903 +++ b/lib/Makefile
91904 @@ -52,7 +52,7 @@ obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
91905 obj-$(CONFIG_BTREE) += btree.o
91906 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
91907 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
91908 -obj-$(CONFIG_DEBUG_LIST) += list_debug.o
91909 +obj-y += list_debug.o
91910 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
91911
91912 ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
91913 diff --git a/lib/average.c b/lib/average.c
91914 index 114d1be..ab0350c 100644
91915 --- a/lib/average.c
91916 +++ b/lib/average.c
91917 @@ -55,7 +55,7 @@ struct ewma *ewma_add(struct ewma *avg, unsigned long val)
91918 {
91919 unsigned long internal = ACCESS_ONCE(avg->internal);
91920
91921 - ACCESS_ONCE(avg->internal) = internal ?
91922 + ACCESS_ONCE_RW(avg->internal) = internal ?
91923 (((internal << avg->weight) - internal) +
91924 (val << avg->factor)) >> avg->weight :
91925 (val << avg->factor);
91926 diff --git a/lib/bitmap.c b/lib/bitmap.c
91927 index 06f7e4f..f3cf2b0 100644
91928 --- a/lib/bitmap.c
91929 +++ b/lib/bitmap.c
91930 @@ -422,7 +422,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
91931 {
91932 int c, old_c, totaldigits, ndigits, nchunks, nbits;
91933 u32 chunk;
91934 - const char __user __force *ubuf = (const char __user __force *)buf;
91935 + const char __user *ubuf = (const char __force_user *)buf;
91936
91937 bitmap_zero(maskp, nmaskbits);
91938
91939 @@ -507,7 +507,7 @@ int bitmap_parse_user(const char __user *ubuf,
91940 {
91941 if (!access_ok(VERIFY_READ, ubuf, ulen))
91942 return -EFAULT;
91943 - return __bitmap_parse((const char __force *)ubuf,
91944 + return __bitmap_parse((const char __force_kernel *)ubuf,
91945 ulen, 1, maskp, nmaskbits);
91946
91947 }
91948 @@ -598,7 +598,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
91949 {
91950 unsigned a, b;
91951 int c, old_c, totaldigits;
91952 - const char __user __force *ubuf = (const char __user __force *)buf;
91953 + const char __user *ubuf = (const char __force_user *)buf;
91954 int exp_digit, in_range;
91955
91956 totaldigits = c = 0;
91957 @@ -698,7 +698,7 @@ int bitmap_parselist_user(const char __user *ubuf,
91958 {
91959 if (!access_ok(VERIFY_READ, ubuf, ulen))
91960 return -EFAULT;
91961 - return __bitmap_parselist((const char __force *)ubuf,
91962 + return __bitmap_parselist((const char __force_kernel *)ubuf,
91963 ulen, 1, maskp, nmaskbits);
91964 }
91965 EXPORT_SYMBOL(bitmap_parselist_user);
91966 diff --git a/lib/bug.c b/lib/bug.c
91967 index 1686034..a9c00c8 100644
91968 --- a/lib/bug.c
91969 +++ b/lib/bug.c
91970 @@ -134,6 +134,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
91971 return BUG_TRAP_TYPE_NONE;
91972
91973 bug = find_bug(bugaddr);
91974 + if (!bug)
91975 + return BUG_TRAP_TYPE_NONE;
91976
91977 file = NULL;
91978 line = 0;
91979 diff --git a/lib/debugobjects.c b/lib/debugobjects.c
91980 index e0731c3..ad66444 100644
91981 --- a/lib/debugobjects.c
91982 +++ b/lib/debugobjects.c
91983 @@ -286,7 +286,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
91984 if (limit > 4)
91985 return;
91986
91987 - is_on_stack = object_is_on_stack(addr);
91988 + is_on_stack = object_starts_on_stack(addr);
91989 if (is_on_stack == onstack)
91990 return;
91991
91992 diff --git a/lib/div64.c b/lib/div64.c
91993 index 4382ad7..08aa558 100644
91994 --- a/lib/div64.c
91995 +++ b/lib/div64.c
91996 @@ -59,7 +59,7 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
91997 EXPORT_SYMBOL(__div64_32);
91998
91999 #ifndef div_s64_rem
92000 -s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
92001 +s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
92002 {
92003 u64 quotient;
92004
92005 @@ -130,7 +130,7 @@ EXPORT_SYMBOL(div64_u64_rem);
92006 * 'http://www.hackersdelight.org/HDcode/newCode/divDouble.c.txt'
92007 */
92008 #ifndef div64_u64
92009 -u64 div64_u64(u64 dividend, u64 divisor)
92010 +u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
92011 {
92012 u32 high = divisor >> 32;
92013 u64 quot;
92014 diff --git a/lib/dma-debug.c b/lib/dma-debug.c
92015 index 98f2d7e..899da5c 100644
92016 --- a/lib/dma-debug.c
92017 +++ b/lib/dma-debug.c
92018 @@ -971,7 +971,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
92019
92020 void dma_debug_add_bus(struct bus_type *bus)
92021 {
92022 - struct notifier_block *nb;
92023 + notifier_block_no_const *nb;
92024
92025 if (global_disable)
92026 return;
92027 @@ -1148,7 +1148,7 @@ static void check_unmap(struct dma_debug_entry *ref)
92028
92029 static void check_for_stack(struct device *dev, void *addr)
92030 {
92031 - if (object_is_on_stack(addr))
92032 + if (object_starts_on_stack(addr))
92033 err_printk(dev, NULL, "DMA-API: device driver maps memory from"
92034 "stack [addr=%p]\n", addr);
92035 }
92036 diff --git a/lib/hash.c b/lib/hash.c
92037 index fea973f..386626f 100644
92038 --- a/lib/hash.c
92039 +++ b/lib/hash.c
92040 @@ -14,7 +14,7 @@
92041 #include <linux/hash.h>
92042 #include <linux/cache.h>
92043
92044 -static struct fast_hash_ops arch_hash_ops __read_mostly = {
92045 +static struct fast_hash_ops arch_hash_ops __read_only = {
92046 .hash = jhash,
92047 .hash2 = jhash2,
92048 };
92049 diff --git a/lib/inflate.c b/lib/inflate.c
92050 index 013a761..c28f3fc 100644
92051 --- a/lib/inflate.c
92052 +++ b/lib/inflate.c
92053 @@ -269,7 +269,7 @@ static void free(void *where)
92054 malloc_ptr = free_mem_ptr;
92055 }
92056 #else
92057 -#define malloc(a) kmalloc(a, GFP_KERNEL)
92058 +#define malloc(a) kmalloc((a), GFP_KERNEL)
92059 #define free(a) kfree(a)
92060 #endif
92061
92062 diff --git a/lib/ioremap.c b/lib/ioremap.c
92063 index 0c9216c..863bd89 100644
92064 --- a/lib/ioremap.c
92065 +++ b/lib/ioremap.c
92066 @@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
92067 unsigned long next;
92068
92069 phys_addr -= addr;
92070 - pmd = pmd_alloc(&init_mm, pud, addr);
92071 + pmd = pmd_alloc_kernel(&init_mm, pud, addr);
92072 if (!pmd)
92073 return -ENOMEM;
92074 do {
92075 @@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
92076 unsigned long next;
92077
92078 phys_addr -= addr;
92079 - pud = pud_alloc(&init_mm, pgd, addr);
92080 + pud = pud_alloc_kernel(&init_mm, pgd, addr);
92081 if (!pud)
92082 return -ENOMEM;
92083 do {
92084 diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
92085 index bd2bea9..6b3c95e 100644
92086 --- a/lib/is_single_threaded.c
92087 +++ b/lib/is_single_threaded.c
92088 @@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
92089 struct task_struct *p, *t;
92090 bool ret;
92091
92092 + if (!mm)
92093 + return true;
92094 +
92095 if (atomic_read(&task->signal->live) != 1)
92096 return false;
92097
92098 diff --git a/lib/kobject.c b/lib/kobject.c
92099 index 58751bb..93a1853 100644
92100 --- a/lib/kobject.c
92101 +++ b/lib/kobject.c
92102 @@ -931,9 +931,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
92103
92104
92105 static DEFINE_SPINLOCK(kobj_ns_type_lock);
92106 -static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
92107 +static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
92108
92109 -int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
92110 +int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
92111 {
92112 enum kobj_ns_type type = ops->type;
92113 int error;
92114 diff --git a/lib/list_debug.c b/lib/list_debug.c
92115 index c24c2f7..f0296f4 100644
92116 --- a/lib/list_debug.c
92117 +++ b/lib/list_debug.c
92118 @@ -11,7 +11,9 @@
92119 #include <linux/bug.h>
92120 #include <linux/kernel.h>
92121 #include <linux/rculist.h>
92122 +#include <linux/mm.h>
92123
92124 +#ifdef CONFIG_DEBUG_LIST
92125 /*
92126 * Insert a new entry between two known consecutive entries.
92127 *
92128 @@ -19,21 +21,40 @@
92129 * the prev/next entries already!
92130 */
92131
92132 +static bool __list_add_debug(struct list_head *new,
92133 + struct list_head *prev,
92134 + struct list_head *next)
92135 +{
92136 + if (unlikely(next->prev != prev)) {
92137 + printk(KERN_ERR "list_add corruption. next->prev should be "
92138 + "prev (%p), but was %p. (next=%p).\n",
92139 + prev, next->prev, next);
92140 + BUG();
92141 + return false;
92142 + }
92143 + if (unlikely(prev->next != next)) {
92144 + printk(KERN_ERR "list_add corruption. prev->next should be "
92145 + "next (%p), but was %p. (prev=%p).\n",
92146 + next, prev->next, prev);
92147 + BUG();
92148 + return false;
92149 + }
92150 + if (unlikely(new == prev || new == next)) {
92151 + printk(KERN_ERR "list_add double add: new=%p, prev=%p, next=%p.\n",
92152 + new, prev, next);
92153 + BUG();
92154 + return false;
92155 + }
92156 + return true;
92157 +}
92158 +
92159 void __list_add(struct list_head *new,
92160 - struct list_head *prev,
92161 - struct list_head *next)
92162 + struct list_head *prev,
92163 + struct list_head *next)
92164 {
92165 - WARN(next->prev != prev,
92166 - "list_add corruption. next->prev should be "
92167 - "prev (%p), but was %p. (next=%p).\n",
92168 - prev, next->prev, next);
92169 - WARN(prev->next != next,
92170 - "list_add corruption. prev->next should be "
92171 - "next (%p), but was %p. (prev=%p).\n",
92172 - next, prev->next, prev);
92173 - WARN(new == prev || new == next,
92174 - "list_add double add: new=%p, prev=%p, next=%p.\n",
92175 - new, prev, next);
92176 + if (!__list_add_debug(new, prev, next))
92177 + return;
92178 +
92179 next->prev = new;
92180 new->next = next;
92181 new->prev = prev;
92182 @@ -41,28 +62,46 @@ void __list_add(struct list_head *new,
92183 }
92184 EXPORT_SYMBOL(__list_add);
92185
92186 -void __list_del_entry(struct list_head *entry)
92187 +static bool __list_del_entry_debug(struct list_head *entry)
92188 {
92189 struct list_head *prev, *next;
92190
92191 prev = entry->prev;
92192 next = entry->next;
92193
92194 - if (WARN(next == LIST_POISON1,
92195 - "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
92196 - entry, LIST_POISON1) ||
92197 - WARN(prev == LIST_POISON2,
92198 - "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
92199 - entry, LIST_POISON2) ||
92200 - WARN(prev->next != entry,
92201 - "list_del corruption. prev->next should be %p, "
92202 - "but was %p\n", entry, prev->next) ||
92203 - WARN(next->prev != entry,
92204 - "list_del corruption. next->prev should be %p, "
92205 - "but was %p\n", entry, next->prev))
92206 + if (unlikely(next == LIST_POISON1)) {
92207 + printk(KERN_ERR "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
92208 + entry, LIST_POISON1);
92209 + BUG();
92210 + return false;
92211 + }
92212 + if (unlikely(prev == LIST_POISON2)) {
92213 + printk(KERN_ERR "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
92214 + entry, LIST_POISON2);
92215 + BUG();
92216 + return false;
92217 + }
92218 + if (unlikely(entry->prev->next != entry)) {
92219 + printk(KERN_ERR "list_del corruption. prev->next should be %p, "
92220 + "but was %p\n", entry, prev->next);
92221 + BUG();
92222 + return false;
92223 + }
92224 + if (unlikely(entry->next->prev != entry)) {
92225 + printk(KERN_ERR "list_del corruption. next->prev should be %p, "
92226 + "but was %p\n", entry, next->prev);
92227 + BUG();
92228 + return false;
92229 + }
92230 + return true;
92231 +}
92232 +
92233 +void __list_del_entry(struct list_head *entry)
92234 +{
92235 + if (!__list_del_entry_debug(entry))
92236 return;
92237
92238 - __list_del(prev, next);
92239 + __list_del(entry->prev, entry->next);
92240 }
92241 EXPORT_SYMBOL(__list_del_entry);
92242
92243 @@ -86,15 +125,85 @@ EXPORT_SYMBOL(list_del);
92244 void __list_add_rcu(struct list_head *new,
92245 struct list_head *prev, struct list_head *next)
92246 {
92247 - WARN(next->prev != prev,
92248 - "list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
92249 - prev, next->prev, next);
92250 - WARN(prev->next != next,
92251 - "list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
92252 - next, prev->next, prev);
92253 + if (!__list_add_debug(new, prev, next))
92254 + return;
92255 +
92256 new->next = next;
92257 new->prev = prev;
92258 rcu_assign_pointer(list_next_rcu(prev), new);
92259 next->prev = new;
92260 }
92261 EXPORT_SYMBOL(__list_add_rcu);
92262 +#endif
92263 +
92264 +void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
92265 +{
92266 +#ifdef CONFIG_DEBUG_LIST
92267 + if (!__list_add_debug(new, prev, next))
92268 + return;
92269 +#endif
92270 +
92271 + pax_open_kernel();
92272 + next->prev = new;
92273 + new->next = next;
92274 + new->prev = prev;
92275 + prev->next = new;
92276 + pax_close_kernel();
92277 +}
92278 +EXPORT_SYMBOL(__pax_list_add);
92279 +
92280 +void pax_list_del(struct list_head *entry)
92281 +{
92282 +#ifdef CONFIG_DEBUG_LIST
92283 + if (!__list_del_entry_debug(entry))
92284 + return;
92285 +#endif
92286 +
92287 + pax_open_kernel();
92288 + __list_del(entry->prev, entry->next);
92289 + entry->next = LIST_POISON1;
92290 + entry->prev = LIST_POISON2;
92291 + pax_close_kernel();
92292 +}
92293 +EXPORT_SYMBOL(pax_list_del);
92294 +
92295 +void pax_list_del_init(struct list_head *entry)
92296 +{
92297 + pax_open_kernel();
92298 + __list_del(entry->prev, entry->next);
92299 + INIT_LIST_HEAD(entry);
92300 + pax_close_kernel();
92301 +}
92302 +EXPORT_SYMBOL(pax_list_del_init);
92303 +
92304 +void __pax_list_add_rcu(struct list_head *new,
92305 + struct list_head *prev, struct list_head *next)
92306 +{
92307 +#ifdef CONFIG_DEBUG_LIST
92308 + if (!__list_add_debug(new, prev, next))
92309 + return;
92310 +#endif
92311 +
92312 + pax_open_kernel();
92313 + new->next = next;
92314 + new->prev = prev;
92315 + rcu_assign_pointer(list_next_rcu(prev), new);
92316 + next->prev = new;
92317 + pax_close_kernel();
92318 +}
92319 +EXPORT_SYMBOL(__pax_list_add_rcu);
92320 +
92321 +void pax_list_del_rcu(struct list_head *entry)
92322 +{
92323 +#ifdef CONFIG_DEBUG_LIST
92324 + if (!__list_del_entry_debug(entry))
92325 + return;
92326 +#endif
92327 +
92328 + pax_open_kernel();
92329 + __list_del(entry->prev, entry->next);
92330 + entry->next = LIST_POISON1;
92331 + entry->prev = LIST_POISON2;
92332 + pax_close_kernel();
92333 +}
92334 +EXPORT_SYMBOL(pax_list_del_rcu);
92335 diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
92336 index 963b703..438bc51 100644
92337 --- a/lib/percpu-refcount.c
92338 +++ b/lib/percpu-refcount.c
92339 @@ -29,7 +29,7 @@
92340 * can't hit 0 before we've added up all the percpu refs.
92341 */
92342
92343 -#define PCPU_COUNT_BIAS (1U << 31)
92344 +#define PCPU_COUNT_BIAS (1U << 30)
92345
92346 /**
92347 * percpu_ref_init - initialize a percpu refcount
92348 diff --git a/lib/radix-tree.c b/lib/radix-tree.c
92349 index 9599aa7..9cf6c72 100644
92350 --- a/lib/radix-tree.c
92351 +++ b/lib/radix-tree.c
92352 @@ -66,7 +66,7 @@ struct radix_tree_preload {
92353 int nr;
92354 struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
92355 };
92356 -static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
92357 +static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
92358
92359 static inline void *ptr_to_indirect(void *ptr)
92360 {
92361 diff --git a/lib/random32.c b/lib/random32.c
92362 index fa5da61..35fe9af 100644
92363 --- a/lib/random32.c
92364 +++ b/lib/random32.c
92365 @@ -42,7 +42,7 @@
92366 static void __init prandom_state_selftest(void);
92367 #endif
92368
92369 -static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
92370 +static DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
92371
92372 /**
92373 * prandom_u32_state - seeded pseudo-random number generator.
92374 diff --git a/lib/rbtree.c b/lib/rbtree.c
92375 index 65f4eff..2cfa167 100644
92376 --- a/lib/rbtree.c
92377 +++ b/lib/rbtree.c
92378 @@ -380,7 +380,9 @@ static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
92379 static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
92380
92381 static const struct rb_augment_callbacks dummy_callbacks = {
92382 - dummy_propagate, dummy_copy, dummy_rotate
92383 + .propagate = dummy_propagate,
92384 + .copy = dummy_copy,
92385 + .rotate = dummy_rotate
92386 };
92387
92388 void rb_insert_color(struct rb_node *node, struct rb_root *root)
92389 diff --git a/lib/show_mem.c b/lib/show_mem.c
92390 index 0922579..9d7adb9 100644
92391 --- a/lib/show_mem.c
92392 +++ b/lib/show_mem.c
92393 @@ -44,6 +44,6 @@ void show_mem(unsigned int filter)
92394 quicklist_total_size());
92395 #endif
92396 #ifdef CONFIG_MEMORY_FAILURE
92397 - printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
92398 + printk("%lu pages hwpoisoned\n", atomic_long_read_unchecked(&num_poisoned_pages));
92399 #endif
92400 }
92401 diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
92402 index bb2b201..46abaf9 100644
92403 --- a/lib/strncpy_from_user.c
92404 +++ b/lib/strncpy_from_user.c
92405 @@ -21,7 +21,7 @@
92406 */
92407 static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
92408 {
92409 - const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
92410 + static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
92411 long res = 0;
92412
92413 /*
92414 diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
92415 index a28df52..3d55877 100644
92416 --- a/lib/strnlen_user.c
92417 +++ b/lib/strnlen_user.c
92418 @@ -26,7 +26,7 @@
92419 */
92420 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
92421 {
92422 - const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
92423 + static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
92424 long align, res = 0;
92425 unsigned long c;
92426
92427 diff --git a/lib/swiotlb.c b/lib/swiotlb.c
92428 index b604b83..c0547f6 100644
92429 --- a/lib/swiotlb.c
92430 +++ b/lib/swiotlb.c
92431 @@ -674,7 +674,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
92432
92433 void
92434 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
92435 - dma_addr_t dev_addr)
92436 + dma_addr_t dev_addr, struct dma_attrs *attrs)
92437 {
92438 phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
92439
92440 diff --git a/lib/usercopy.c b/lib/usercopy.c
92441 index 4f5b1dd..7cab418 100644
92442 --- a/lib/usercopy.c
92443 +++ b/lib/usercopy.c
92444 @@ -7,3 +7,9 @@ void copy_from_user_overflow(void)
92445 WARN(1, "Buffer overflow detected!\n");
92446 }
92447 EXPORT_SYMBOL(copy_from_user_overflow);
92448 +
92449 +void copy_to_user_overflow(void)
92450 +{
92451 + WARN(1, "Buffer overflow detected!\n");
92452 +}
92453 +EXPORT_SYMBOL(copy_to_user_overflow);
92454 diff --git a/lib/vsprintf.c b/lib/vsprintf.c
92455 index 0648291..42bf42b 100644
92456 --- a/lib/vsprintf.c
92457 +++ b/lib/vsprintf.c
92458 @@ -16,6 +16,9 @@
92459 * - scnprintf and vscnprintf
92460 */
92461
92462 +#ifdef CONFIG_GRKERNSEC_HIDESYM
92463 +#define __INCLUDED_BY_HIDESYM 1
92464 +#endif
92465 #include <stdarg.h>
92466 #include <linux/module.h> /* for KSYM_SYMBOL_LEN */
92467 #include <linux/types.h>
92468 @@ -1183,7 +1186,11 @@ char *address_val(char *buf, char *end, const void *addr,
92469 return number(buf, end, num, spec);
92470 }
92471
92472 +#ifdef CONFIG_GRKERNSEC_HIDESYM
92473 +int kptr_restrict __read_mostly = 2;
92474 +#else
92475 int kptr_restrict __read_mostly;
92476 +#endif
92477
92478 /*
92479 * Show a '%p' thing. A kernel extension is that the '%p' is followed
92480 @@ -1196,6 +1203,7 @@ int kptr_restrict __read_mostly;
92481 * - 'f' For simple symbolic function names without offset
92482 * - 'S' For symbolic direct pointers with offset
92483 * - 's' For symbolic direct pointers without offset
92484 + * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
92485 * - '[FfSs]R' as above with __builtin_extract_return_addr() translation
92486 * - 'B' For backtraced symbolic direct pointers with offset
92487 * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
92488 @@ -1263,12 +1271,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
92489
92490 if (!ptr && *fmt != 'K') {
92491 /*
92492 - * Print (null) with the same width as a pointer so it makes
92493 + * Print (nil) with the same width as a pointer so it makes
92494 * tabular output look nice.
92495 */
92496 if (spec.field_width == -1)
92497 spec.field_width = default_width;
92498 - return string(buf, end, "(null)", spec);
92499 + return string(buf, end, "(nil)", spec);
92500 }
92501
92502 switch (*fmt) {
92503 @@ -1278,6 +1286,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
92504 /* Fallthrough */
92505 case 'S':
92506 case 's':
92507 +#ifdef CONFIG_GRKERNSEC_HIDESYM
92508 + break;
92509 +#else
92510 + return symbol_string(buf, end, ptr, spec, fmt);
92511 +#endif
92512 + case 'A':
92513 case 'B':
92514 return symbol_string(buf, end, ptr, spec, fmt);
92515 case 'R':
92516 @@ -1333,6 +1347,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
92517 va_end(va);
92518 return buf;
92519 }
92520 + case 'P':
92521 + break;
92522 case 'K':
92523 /*
92524 * %pK cannot be used in IRQ context because its test
92525 @@ -1390,6 +1406,21 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
92526 ((const struct file *)ptr)->f_path.dentry,
92527 spec, fmt);
92528 }
92529 +
92530 +#ifdef CONFIG_GRKERNSEC_HIDESYM
92531 + /* 'P' = approved pointers to copy to userland,
92532 + as in the /proc/kallsyms case, as we make it display nothing
92533 + for non-root users, and the real contents for root users
92534 + Also ignore 'K' pointers, since we force their NULLing for non-root users
92535 + above
92536 + */
92537 + if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'K' && is_usercopy_object(buf)) {
92538 + printk(KERN_ALERT "grsec: kernel infoleak detected! Please report this log to spender@grsecurity.net.\n");
92539 + dump_stack();
92540 + ptr = NULL;
92541 + }
92542 +#endif
92543 +
92544 spec.flags |= SMALL;
92545 if (spec.field_width == -1) {
92546 spec.field_width = default_width;
92547 @@ -2089,11 +2120,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
92548 typeof(type) value; \
92549 if (sizeof(type) == 8) { \
92550 args = PTR_ALIGN(args, sizeof(u32)); \
92551 - *(u32 *)&value = *(u32 *)args; \
92552 - *((u32 *)&value + 1) = *(u32 *)(args + 4); \
92553 + *(u32 *)&value = *(const u32 *)args; \
92554 + *((u32 *)&value + 1) = *(const u32 *)(args + 4); \
92555 } else { \
92556 args = PTR_ALIGN(args, sizeof(type)); \
92557 - value = *(typeof(type) *)args; \
92558 + value = *(const typeof(type) *)args; \
92559 } \
92560 args += sizeof(type); \
92561 value; \
92562 @@ -2156,7 +2187,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
92563 case FORMAT_TYPE_STR: {
92564 const char *str_arg = args;
92565 args += strlen(str_arg) + 1;
92566 - str = string(str, end, (char *)str_arg, spec);
92567 + str = string(str, end, str_arg, spec);
92568 break;
92569 }
92570
92571 diff --git a/localversion-grsec b/localversion-grsec
92572 new file mode 100644
92573 index 0000000..7cd6065
92574 --- /dev/null
92575 +++ b/localversion-grsec
92576 @@ -0,0 +1 @@
92577 +-grsec
92578 diff --git a/mm/Kconfig b/mm/Kconfig
92579 index 2f42b9c..6095e14 100644
92580 --- a/mm/Kconfig
92581 +++ b/mm/Kconfig
92582 @@ -330,10 +330,11 @@ config KSM
92583 root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
92584
92585 config DEFAULT_MMAP_MIN_ADDR
92586 - int "Low address space to protect from user allocation"
92587 + int "Low address space to protect from user allocation"
92588 depends on MMU
92589 - default 4096
92590 - help
92591 + default 32768 if ALPHA || ARM || PARISC || SPARC32
92592 + default 65536
92593 + help
92594 This is the portion of low virtual memory which should be protected
92595 from userspace allocation. Keeping a user from writing to low pages
92596 can help reduce the impact of kernel NULL pointer bugs.
92597 @@ -364,7 +365,7 @@ config MEMORY_FAILURE
92598
92599 config HWPOISON_INJECT
92600 tristate "HWPoison pages injector"
92601 - depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
92602 + depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
92603 select PROC_PAGE_MONITOR
92604
92605 config NOMMU_INITIAL_TRIM_EXCESS
92606 diff --git a/mm/backing-dev.c b/mm/backing-dev.c
92607 index 09d9591..165bb75 100644
92608 --- a/mm/backing-dev.c
92609 +++ b/mm/backing-dev.c
92610 @@ -12,7 +12,7 @@
92611 #include <linux/device.h>
92612 #include <trace/events/writeback.h>
92613
92614 -static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
92615 +static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
92616
92617 struct backing_dev_info default_backing_dev_info = {
92618 .name = "default",
92619 @@ -533,7 +533,7 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name,
92620 return err;
92621
92622 err = bdi_register(bdi, NULL, "%.28s-%ld", name,
92623 - atomic_long_inc_return(&bdi_seq));
92624 + atomic_long_inc_return_unchecked(&bdi_seq));
92625 if (err) {
92626 bdi_destroy(bdi);
92627 return err;
92628 diff --git a/mm/filemap.c b/mm/filemap.c
92629 index 088358c..bb415bf 100644
92630 --- a/mm/filemap.c
92631 +++ b/mm/filemap.c
92632 @@ -2125,7 +2125,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
92633 struct address_space *mapping = file->f_mapping;
92634
92635 if (!mapping->a_ops->readpage)
92636 - return -ENOEXEC;
92637 + return -ENODEV;
92638 file_accessed(file);
92639 vma->vm_ops = &generic_file_vm_ops;
92640 return 0;
92641 @@ -2303,6 +2303,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
92642 *pos = i_size_read(inode);
92643
92644 if (limit != RLIM_INFINITY) {
92645 + gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
92646 if (*pos >= limit) {
92647 send_sig(SIGXFSZ, current, 0);
92648 return -EFBIG;
92649 diff --git a/mm/fremap.c b/mm/fremap.c
92650 index 34feba6..315fe78 100644
92651 --- a/mm/fremap.c
92652 +++ b/mm/fremap.c
92653 @@ -179,6 +179,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
92654 retry:
92655 vma = find_vma(mm, start);
92656
92657 +#ifdef CONFIG_PAX_SEGMEXEC
92658 + if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
92659 + goto out;
92660 +#endif
92661 +
92662 /*
92663 * Make sure the vma is shared, that it supports prefaulting,
92664 * and that the remapped range is valid and fully within
92665 diff --git a/mm/highmem.c b/mm/highmem.c
92666 index b32b70c..e512eb0 100644
92667 --- a/mm/highmem.c
92668 +++ b/mm/highmem.c
92669 @@ -138,8 +138,9 @@ static void flush_all_zero_pkmaps(void)
92670 * So no dangers, even with speculative execution.
92671 */
92672 page = pte_page(pkmap_page_table[i]);
92673 + pax_open_kernel();
92674 pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
92675 -
92676 + pax_close_kernel();
92677 set_page_address(page, NULL);
92678 need_flush = 1;
92679 }
92680 @@ -198,9 +199,11 @@ start:
92681 }
92682 }
92683 vaddr = PKMAP_ADDR(last_pkmap_nr);
92684 +
92685 + pax_open_kernel();
92686 set_pte_at(&init_mm, vaddr,
92687 &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
92688 -
92689 + pax_close_kernel();
92690 pkmap_count[last_pkmap_nr] = 1;
92691 set_page_address(page, (void *)vaddr);
92692
92693 diff --git a/mm/hugetlb.c b/mm/hugetlb.c
92694 index a646f15..f55da4c 100644
92695 --- a/mm/hugetlb.c
92696 +++ b/mm/hugetlb.c
92697 @@ -2107,6 +2107,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
92698 struct hstate *h = &default_hstate;
92699 unsigned long tmp;
92700 int ret;
92701 + ctl_table_no_const hugetlb_table;
92702
92703 if (!hugepages_supported())
92704 return -ENOTSUPP;
92705 @@ -2116,9 +2117,10 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
92706 if (write && h->order >= MAX_ORDER)
92707 return -EINVAL;
92708
92709 - table->data = &tmp;
92710 - table->maxlen = sizeof(unsigned long);
92711 - ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
92712 + hugetlb_table = *table;
92713 + hugetlb_table.data = &tmp;
92714 + hugetlb_table.maxlen = sizeof(unsigned long);
92715 + ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
92716 if (ret)
92717 goto out;
92718
92719 @@ -2163,6 +2165,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
92720 struct hstate *h = &default_hstate;
92721 unsigned long tmp;
92722 int ret;
92723 + ctl_table_no_const hugetlb_table;
92724
92725 if (!hugepages_supported())
92726 return -ENOTSUPP;
92727 @@ -2172,9 +2175,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
92728 if (write && h->order >= MAX_ORDER)
92729 return -EINVAL;
92730
92731 - table->data = &tmp;
92732 - table->maxlen = sizeof(unsigned long);
92733 - ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
92734 + hugetlb_table = *table;
92735 + hugetlb_table.data = &tmp;
92736 + hugetlb_table.maxlen = sizeof(unsigned long);
92737 + ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
92738 if (ret)
92739 goto out;
92740
92741 @@ -2654,6 +2658,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
92742 return 1;
92743 }
92744
92745 +#ifdef CONFIG_PAX_SEGMEXEC
92746 +static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
92747 +{
92748 + struct mm_struct *mm = vma->vm_mm;
92749 + struct vm_area_struct *vma_m;
92750 + unsigned long address_m;
92751 + pte_t *ptep_m;
92752 +
92753 + vma_m = pax_find_mirror_vma(vma);
92754 + if (!vma_m)
92755 + return;
92756 +
92757 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
92758 + address_m = address + SEGMEXEC_TASK_SIZE;
92759 + ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
92760 + get_page(page_m);
92761 + hugepage_add_anon_rmap(page_m, vma_m, address_m);
92762 + set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
92763 +}
92764 +#endif
92765 +
92766 /*
92767 * Hugetlb_cow() should be called with page lock of the original hugepage held.
92768 * Called with hugetlb_instantiation_mutex held and pte_page locked so we
92769 @@ -2771,6 +2796,11 @@ retry_avoidcopy:
92770 make_huge_pte(vma, new_page, 1));
92771 page_remove_rmap(old_page);
92772 hugepage_add_new_anon_rmap(new_page, vma, address);
92773 +
92774 +#ifdef CONFIG_PAX_SEGMEXEC
92775 + pax_mirror_huge_pte(vma, address, new_page);
92776 +#endif
92777 +
92778 /* Make the old page be freed below */
92779 new_page = old_page;
92780 }
92781 @@ -2930,6 +2960,10 @@ retry:
92782 && (vma->vm_flags & VM_SHARED)));
92783 set_huge_pte_at(mm, address, ptep, new_pte);
92784
92785 +#ifdef CONFIG_PAX_SEGMEXEC
92786 + pax_mirror_huge_pte(vma, address, page);
92787 +#endif
92788 +
92789 if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
92790 /* Optimization, do the COW without a second fault */
92791 ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
92792 @@ -2996,6 +3030,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
92793 struct hstate *h = hstate_vma(vma);
92794 struct address_space *mapping;
92795
92796 +#ifdef CONFIG_PAX_SEGMEXEC
92797 + struct vm_area_struct *vma_m;
92798 +#endif
92799 +
92800 address &= huge_page_mask(h);
92801
92802 ptep = huge_pte_offset(mm, address);
92803 @@ -3009,6 +3047,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
92804 VM_FAULT_SET_HINDEX(hstate_index(h));
92805 }
92806
92807 +#ifdef CONFIG_PAX_SEGMEXEC
92808 + vma_m = pax_find_mirror_vma(vma);
92809 + if (vma_m) {
92810 + unsigned long address_m;
92811 +
92812 + if (vma->vm_start > vma_m->vm_start) {
92813 + address_m = address;
92814 + address -= SEGMEXEC_TASK_SIZE;
92815 + vma = vma_m;
92816 + h = hstate_vma(vma);
92817 + } else
92818 + address_m = address + SEGMEXEC_TASK_SIZE;
92819 +
92820 + if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
92821 + return VM_FAULT_OOM;
92822 + address_m &= HPAGE_MASK;
92823 + unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
92824 + }
92825 +#endif
92826 +
92827 ptep = huge_pte_alloc(mm, address, huge_page_size(h));
92828 if (!ptep)
92829 return VM_FAULT_OOM;
92830 diff --git a/mm/internal.h b/mm/internal.h
92831 index 07b6736..ae8da20 100644
92832 --- a/mm/internal.h
92833 +++ b/mm/internal.h
92834 @@ -109,6 +109,7 @@ extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address);
92835 * in mm/page_alloc.c
92836 */
92837 extern void __free_pages_bootmem(struct page *page, unsigned int order);
92838 +extern void free_compound_page(struct page *page);
92839 extern void prep_compound_page(struct page *page, unsigned long order);
92840 #ifdef CONFIG_MEMORY_FAILURE
92841 extern bool is_free_buddy_page(struct page *page);
92842 @@ -367,7 +368,7 @@ extern u32 hwpoison_filter_enable;
92843
92844 extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
92845 unsigned long, unsigned long,
92846 - unsigned long, unsigned long);
92847 + unsigned long, unsigned long) __intentional_overflow(-1);
92848
92849 extern void set_pageblock_order(void);
92850 unsigned long reclaim_clean_pages_from_list(struct zone *zone,
92851 diff --git a/mm/iov_iter.c b/mm/iov_iter.c
92852 index 10e46cd..e3052f6 100644
92853 --- a/mm/iov_iter.c
92854 +++ b/mm/iov_iter.c
92855 @@ -87,7 +87,7 @@ static size_t __iovec_copy_from_user_inatomic(char *vaddr,
92856
92857 while (bytes) {
92858 char __user *buf = iov->iov_base + base;
92859 - int copy = min(bytes, iov->iov_len - base);
92860 + size_t copy = min(bytes, iov->iov_len - base);
92861
92862 base = 0;
92863 left = __copy_from_user_inatomic(vaddr, buf, copy);
92864 @@ -115,7 +115,7 @@ size_t iov_iter_copy_from_user_atomic(struct page *page,
92865
92866 kaddr = kmap_atomic(page);
92867 if (likely(i->nr_segs == 1)) {
92868 - int left;
92869 + size_t left;
92870 char __user *buf = i->iov->iov_base + i->iov_offset;
92871 left = __copy_from_user_inatomic(kaddr + offset, buf, bytes);
92872 copied = bytes - left;
92873 @@ -143,7 +143,7 @@ size_t iov_iter_copy_from_user(struct page *page,
92874
92875 kaddr = kmap(page);
92876 if (likely(i->nr_segs == 1)) {
92877 - int left;
92878 + size_t left;
92879 char __user *buf = i->iov->iov_base + i->iov_offset;
92880 left = __copy_from_user(kaddr + offset, buf, bytes);
92881 copied = bytes - left;
92882 @@ -173,7 +173,7 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
92883 * zero-length segments (without overruning the iovec).
92884 */
92885 while (bytes || unlikely(i->count && !iov->iov_len)) {
92886 - int copy;
92887 + size_t copy;
92888
92889 copy = min(bytes, iov->iov_len - base);
92890 BUG_ON(!i->count || i->count < copy);
92891 diff --git a/mm/kmemleak.c b/mm/kmemleak.c
92892 index 8d2fcdf..6dd9f1a 100644
92893 --- a/mm/kmemleak.c
92894 +++ b/mm/kmemleak.c
92895 @@ -364,7 +364,7 @@ static void print_unreferenced(struct seq_file *seq,
92896
92897 for (i = 0; i < object->trace_len; i++) {
92898 void *ptr = (void *)object->trace[i];
92899 - seq_printf(seq, " [<%p>] %pS\n", ptr, ptr);
92900 + seq_printf(seq, " [<%pP>] %pA\n", ptr, ptr);
92901 }
92902 }
92903
92904 @@ -1871,7 +1871,7 @@ static int __init kmemleak_late_init(void)
92905 return -ENOMEM;
92906 }
92907
92908 - dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
92909 + dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
92910 &kmemleak_fops);
92911 if (!dentry)
92912 pr_warning("Failed to create the debugfs kmemleak file\n");
92913 diff --git a/mm/maccess.c b/mm/maccess.c
92914 index d53adf9..03a24bf 100644
92915 --- a/mm/maccess.c
92916 +++ b/mm/maccess.c
92917 @@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
92918 set_fs(KERNEL_DS);
92919 pagefault_disable();
92920 ret = __copy_from_user_inatomic(dst,
92921 - (__force const void __user *)src, size);
92922 + (const void __force_user *)src, size);
92923 pagefault_enable();
92924 set_fs(old_fs);
92925
92926 @@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
92927
92928 set_fs(KERNEL_DS);
92929 pagefault_disable();
92930 - ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
92931 + ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
92932 pagefault_enable();
92933 set_fs(old_fs);
92934
92935 diff --git a/mm/madvise.c b/mm/madvise.c
92936 index a402f8f..f5e5daa 100644
92937 --- a/mm/madvise.c
92938 +++ b/mm/madvise.c
92939 @@ -51,6 +51,10 @@ static long madvise_behavior(struct vm_area_struct *vma,
92940 pgoff_t pgoff;
92941 unsigned long new_flags = vma->vm_flags;
92942
92943 +#ifdef CONFIG_PAX_SEGMEXEC
92944 + struct vm_area_struct *vma_m;
92945 +#endif
92946 +
92947 switch (behavior) {
92948 case MADV_NORMAL:
92949 new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
92950 @@ -126,6 +130,13 @@ success:
92951 /*
92952 * vm_flags is protected by the mmap_sem held in write mode.
92953 */
92954 +
92955 +#ifdef CONFIG_PAX_SEGMEXEC
92956 + vma_m = pax_find_mirror_vma(vma);
92957 + if (vma_m)
92958 + vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
92959 +#endif
92960 +
92961 vma->vm_flags = new_flags;
92962
92963 out:
92964 @@ -274,6 +285,11 @@ static long madvise_dontneed(struct vm_area_struct *vma,
92965 struct vm_area_struct **prev,
92966 unsigned long start, unsigned long end)
92967 {
92968 +
92969 +#ifdef CONFIG_PAX_SEGMEXEC
92970 + struct vm_area_struct *vma_m;
92971 +#endif
92972 +
92973 *prev = vma;
92974 if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
92975 return -EINVAL;
92976 @@ -286,6 +302,21 @@ static long madvise_dontneed(struct vm_area_struct *vma,
92977 zap_page_range(vma, start, end - start, &details);
92978 } else
92979 zap_page_range(vma, start, end - start, NULL);
92980 +
92981 +#ifdef CONFIG_PAX_SEGMEXEC
92982 + vma_m = pax_find_mirror_vma(vma);
92983 + if (vma_m) {
92984 + if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
92985 + struct zap_details details = {
92986 + .nonlinear_vma = vma_m,
92987 + .last_index = ULONG_MAX,
92988 + };
92989 + zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, &details);
92990 + } else
92991 + zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
92992 + }
92993 +#endif
92994 +
92995 return 0;
92996 }
92997
92998 @@ -491,6 +522,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
92999 if (end < start)
93000 return error;
93001
93002 +#ifdef CONFIG_PAX_SEGMEXEC
93003 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
93004 + if (end > SEGMEXEC_TASK_SIZE)
93005 + return error;
93006 + } else
93007 +#endif
93008 +
93009 + if (end > TASK_SIZE)
93010 + return error;
93011 +
93012 error = 0;
93013 if (end == start)
93014 return error;
93015 diff --git a/mm/memory-failure.c b/mm/memory-failure.c
93016 index eb8fb72..ae36cf3 100644
93017 --- a/mm/memory-failure.c
93018 +++ b/mm/memory-failure.c
93019 @@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
93020
93021 int sysctl_memory_failure_recovery __read_mostly = 1;
93022
93023 -atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
93024 +atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
93025
93026 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
93027
93028 @@ -198,7 +198,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
93029 pfn, t->comm, t->pid);
93030 si.si_signo = SIGBUS;
93031 si.si_errno = 0;
93032 - si.si_addr = (void *)addr;
93033 + si.si_addr = (void __user *)addr;
93034 #ifdef __ARCH_SI_TRAPNO
93035 si.si_trapno = trapno;
93036 #endif
93037 @@ -791,7 +791,7 @@ static struct page_state {
93038 unsigned long res;
93039 char *msg;
93040 int (*action)(struct page *p, unsigned long pfn);
93041 -} error_states[] = {
93042 +} __do_const error_states[] = {
93043 { reserved, reserved, "reserved kernel", me_kernel },
93044 /*
93045 * free pages are specially detected outside this table:
93046 @@ -1091,7 +1091,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
93047 nr_pages = 1 << compound_order(hpage);
93048 else /* normal page or thp */
93049 nr_pages = 1;
93050 - atomic_long_add(nr_pages, &num_poisoned_pages);
93051 + atomic_long_add_unchecked(nr_pages, &num_poisoned_pages);
93052
93053 /*
93054 * We need/can do nothing about count=0 pages.
93055 @@ -1120,7 +1120,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
93056 if (PageHWPoison(hpage)) {
93057 if ((hwpoison_filter(p) && TestClearPageHWPoison(p))
93058 || (p != hpage && TestSetPageHWPoison(hpage))) {
93059 - atomic_long_sub(nr_pages, &num_poisoned_pages);
93060 + atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
93061 unlock_page(hpage);
93062 return 0;
93063 }
93064 @@ -1186,14 +1186,14 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
93065 */
93066 if (!PageHWPoison(p)) {
93067 printk(KERN_ERR "MCE %#lx: just unpoisoned\n", pfn);
93068 - atomic_long_sub(nr_pages, &num_poisoned_pages);
93069 + atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
93070 put_page(hpage);
93071 res = 0;
93072 goto out;
93073 }
93074 if (hwpoison_filter(p)) {
93075 if (TestClearPageHWPoison(p))
93076 - atomic_long_sub(nr_pages, &num_poisoned_pages);
93077 + atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
93078 unlock_page(hpage);
93079 put_page(hpage);
93080 return 0;
93081 @@ -1415,7 +1415,7 @@ int unpoison_memory(unsigned long pfn)
93082 return 0;
93083 }
93084 if (TestClearPageHWPoison(p))
93085 - atomic_long_dec(&num_poisoned_pages);
93086 + atomic_long_dec_unchecked(&num_poisoned_pages);
93087 pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
93088 return 0;
93089 }
93090 @@ -1429,7 +1429,7 @@ int unpoison_memory(unsigned long pfn)
93091 */
93092 if (TestClearPageHWPoison(page)) {
93093 pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
93094 - atomic_long_sub(nr_pages, &num_poisoned_pages);
93095 + atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
93096 freeit = 1;
93097 if (PageHuge(page))
93098 clear_page_hwpoison_huge_page(page);
93099 @@ -1554,11 +1554,11 @@ static int soft_offline_huge_page(struct page *page, int flags)
93100 if (PageHuge(page)) {
93101 set_page_hwpoison_huge_page(hpage);
93102 dequeue_hwpoisoned_huge_page(hpage);
93103 - atomic_long_add(1 << compound_order(hpage),
93104 + atomic_long_add_unchecked(1 << compound_order(hpage),
93105 &num_poisoned_pages);
93106 } else {
93107 SetPageHWPoison(page);
93108 - atomic_long_inc(&num_poisoned_pages);
93109 + atomic_long_inc_unchecked(&num_poisoned_pages);
93110 }
93111 }
93112 return ret;
93113 @@ -1597,7 +1597,7 @@ static int __soft_offline_page(struct page *page, int flags)
93114 put_page(page);
93115 pr_info("soft_offline: %#lx: invalidated\n", pfn);
93116 SetPageHWPoison(page);
93117 - atomic_long_inc(&num_poisoned_pages);
93118 + atomic_long_inc_unchecked(&num_poisoned_pages);
93119 return 0;
93120 }
93121
93122 @@ -1648,7 +1648,7 @@ static int __soft_offline_page(struct page *page, int flags)
93123 if (!is_free_buddy_page(page))
93124 pr_info("soft offline: %#lx: page leaked\n",
93125 pfn);
93126 - atomic_long_inc(&num_poisoned_pages);
93127 + atomic_long_inc_unchecked(&num_poisoned_pages);
93128 }
93129 } else {
93130 pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
93131 @@ -1722,11 +1722,11 @@ int soft_offline_page(struct page *page, int flags)
93132 if (PageHuge(page)) {
93133 set_page_hwpoison_huge_page(hpage);
93134 dequeue_hwpoisoned_huge_page(hpage);
93135 - atomic_long_add(1 << compound_order(hpage),
93136 + atomic_long_add_unchecked(1 << compound_order(hpage),
93137 &num_poisoned_pages);
93138 } else {
93139 SetPageHWPoison(page);
93140 - atomic_long_inc(&num_poisoned_pages);
93141 + atomic_long_inc_unchecked(&num_poisoned_pages);
93142 }
93143 }
93144 unset_migratetype_isolate(page, MIGRATE_MOVABLE);
93145 diff --git a/mm/memory.c b/mm/memory.c
93146 index e302ae1..c0ef712 100644
93147 --- a/mm/memory.c
93148 +++ b/mm/memory.c
93149 @@ -413,6 +413,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
93150 free_pte_range(tlb, pmd, addr);
93151 } while (pmd++, addr = next, addr != end);
93152
93153 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
93154 start &= PUD_MASK;
93155 if (start < floor)
93156 return;
93157 @@ -427,6 +428,8 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
93158 pmd = pmd_offset(pud, start);
93159 pud_clear(pud);
93160 pmd_free_tlb(tlb, pmd, start);
93161 +#endif
93162 +
93163 }
93164
93165 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
93166 @@ -446,6 +449,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
93167 free_pmd_range(tlb, pud, addr, next, floor, ceiling);
93168 } while (pud++, addr = next, addr != end);
93169
93170 +#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
93171 start &= PGDIR_MASK;
93172 if (start < floor)
93173 return;
93174 @@ -460,6 +464,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
93175 pud = pud_offset(pgd, start);
93176 pgd_clear(pgd);
93177 pud_free_tlb(tlb, pud, start);
93178 +#endif
93179 +
93180 }
93181
93182 /*
93183 @@ -1652,12 +1658,6 @@ no_page_table:
93184 return page;
93185 }
93186
93187 -static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
93188 -{
93189 - return stack_guard_page_start(vma, addr) ||
93190 - stack_guard_page_end(vma, addr+PAGE_SIZE);
93191 -}
93192 -
93193 /**
93194 * __get_user_pages() - pin user pages in memory
93195 * @tsk: task_struct of target task
93196 @@ -1735,10 +1735,10 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
93197
93198 i = 0;
93199
93200 - do {
93201 + while (nr_pages) {
93202 struct vm_area_struct *vma;
93203
93204 - vma = find_extend_vma(mm, start);
93205 + vma = find_vma(mm, start);
93206 if (!vma && in_gate_area(mm, start)) {
93207 unsigned long pg = start & PAGE_MASK;
93208 pgd_t *pgd;
93209 @@ -1787,7 +1787,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
93210 goto next_page;
93211 }
93212
93213 - if (!vma)
93214 + if (!vma || start < vma->vm_start)
93215 goto efault;
93216 vm_flags = vma->vm_flags;
93217 if (vm_flags & (VM_IO | VM_PFNMAP))
93218 @@ -1848,11 +1848,6 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
93219 int ret;
93220 unsigned int fault_flags = 0;
93221
93222 - /* For mlock, just skip the stack guard page. */
93223 - if (foll_flags & FOLL_MLOCK) {
93224 - if (stack_guard_page(vma, start))
93225 - goto next_page;
93226 - }
93227 if (foll_flags & FOLL_WRITE)
93228 fault_flags |= FAULT_FLAG_WRITE;
93229 if (nonblocking)
93230 @@ -1932,7 +1927,7 @@ next_page:
93231 start += page_increm * PAGE_SIZE;
93232 nr_pages -= page_increm;
93233 } while (nr_pages && start < vma->vm_end);
93234 - } while (nr_pages);
93235 + }
93236 return i;
93237 efault:
93238 return i ? : -EFAULT;
93239 @@ -2145,6 +2140,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
93240 page_add_file_rmap(page);
93241 set_pte_at(mm, addr, pte, mk_pte(page, prot));
93242
93243 +#ifdef CONFIG_PAX_SEGMEXEC
93244 + pax_mirror_file_pte(vma, addr, page, ptl);
93245 +#endif
93246 +
93247 retval = 0;
93248 pte_unmap_unlock(pte, ptl);
93249 return retval;
93250 @@ -2189,9 +2188,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
93251 if (!page_count(page))
93252 return -EINVAL;
93253 if (!(vma->vm_flags & VM_MIXEDMAP)) {
93254 +
93255 +#ifdef CONFIG_PAX_SEGMEXEC
93256 + struct vm_area_struct *vma_m;
93257 +#endif
93258 +
93259 BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
93260 BUG_ON(vma->vm_flags & VM_PFNMAP);
93261 vma->vm_flags |= VM_MIXEDMAP;
93262 +
93263 +#ifdef CONFIG_PAX_SEGMEXEC
93264 + vma_m = pax_find_mirror_vma(vma);
93265 + if (vma_m)
93266 + vma_m->vm_flags |= VM_MIXEDMAP;
93267 +#endif
93268 +
93269 }
93270 return insert_page(vma, addr, page, vma->vm_page_prot);
93271 }
93272 @@ -2274,6 +2285,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
93273 unsigned long pfn)
93274 {
93275 BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
93276 + BUG_ON(vma->vm_mirror);
93277
93278 if (addr < vma->vm_start || addr >= vma->vm_end)
93279 return -EFAULT;
93280 @@ -2521,7 +2533,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
93281
93282 BUG_ON(pud_huge(*pud));
93283
93284 - pmd = pmd_alloc(mm, pud, addr);
93285 + pmd = (mm == &init_mm) ?
93286 + pmd_alloc_kernel(mm, pud, addr) :
93287 + pmd_alloc(mm, pud, addr);
93288 if (!pmd)
93289 return -ENOMEM;
93290 do {
93291 @@ -2541,7 +2555,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
93292 unsigned long next;
93293 int err;
93294
93295 - pud = pud_alloc(mm, pgd, addr);
93296 + pud = (mm == &init_mm) ?
93297 + pud_alloc_kernel(mm, pgd, addr) :
93298 + pud_alloc(mm, pgd, addr);
93299 if (!pud)
93300 return -ENOMEM;
93301 do {
93302 @@ -2663,6 +2679,186 @@ static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page,
93303 return ret;
93304 }
93305
93306 +#ifdef CONFIG_PAX_SEGMEXEC
93307 +static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
93308 +{
93309 + struct mm_struct *mm = vma->vm_mm;
93310 + spinlock_t *ptl;
93311 + pte_t *pte, entry;
93312 +
93313 + pte = pte_offset_map_lock(mm, pmd, address, &ptl);
93314 + entry = *pte;
93315 + if (!pte_present(entry)) {
93316 + if (!pte_none(entry)) {
93317 + BUG_ON(pte_file(entry));
93318 + free_swap_and_cache(pte_to_swp_entry(entry));
93319 + pte_clear_not_present_full(mm, address, pte, 0);
93320 + }
93321 + } else {
93322 + struct page *page;
93323 +
93324 + flush_cache_page(vma, address, pte_pfn(entry));
93325 + entry = ptep_clear_flush(vma, address, pte);
93326 + BUG_ON(pte_dirty(entry));
93327 + page = vm_normal_page(vma, address, entry);
93328 + if (page) {
93329 + update_hiwater_rss(mm);
93330 + if (PageAnon(page))
93331 + dec_mm_counter_fast(mm, MM_ANONPAGES);
93332 + else
93333 + dec_mm_counter_fast(mm, MM_FILEPAGES);
93334 + page_remove_rmap(page);
93335 + page_cache_release(page);
93336 + }
93337 + }
93338 + pte_unmap_unlock(pte, ptl);
93339 +}
93340 +
93341 +/* PaX: if vma is mirrored, synchronize the mirror's PTE
93342 + *
93343 + * the ptl of the lower mapped page is held on entry and is not released on exit
93344 + * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
93345 + */
93346 +static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
93347 +{
93348 + struct mm_struct *mm = vma->vm_mm;
93349 + unsigned long address_m;
93350 + spinlock_t *ptl_m;
93351 + struct vm_area_struct *vma_m;
93352 + pmd_t *pmd_m;
93353 + pte_t *pte_m, entry_m;
93354 +
93355 + BUG_ON(!page_m || !PageAnon(page_m));
93356 +
93357 + vma_m = pax_find_mirror_vma(vma);
93358 + if (!vma_m)
93359 + return;
93360 +
93361 + BUG_ON(!PageLocked(page_m));
93362 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
93363 + address_m = address + SEGMEXEC_TASK_SIZE;
93364 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
93365 + pte_m = pte_offset_map(pmd_m, address_m);
93366 + ptl_m = pte_lockptr(mm, pmd_m);
93367 + if (ptl != ptl_m) {
93368 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
93369 + if (!pte_none(*pte_m))
93370 + goto out;
93371 + }
93372 +
93373 + entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
93374 + page_cache_get(page_m);
93375 + page_add_anon_rmap(page_m, vma_m, address_m);
93376 + inc_mm_counter_fast(mm, MM_ANONPAGES);
93377 + set_pte_at(mm, address_m, pte_m, entry_m);
93378 + update_mmu_cache(vma_m, address_m, pte_m);
93379 +out:
93380 + if (ptl != ptl_m)
93381 + spin_unlock(ptl_m);
93382 + pte_unmap(pte_m);
93383 + unlock_page(page_m);
93384 +}
93385 +
93386 +void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
93387 +{
93388 + struct mm_struct *mm = vma->vm_mm;
93389 + unsigned long address_m;
93390 + spinlock_t *ptl_m;
93391 + struct vm_area_struct *vma_m;
93392 + pmd_t *pmd_m;
93393 + pte_t *pte_m, entry_m;
93394 +
93395 + BUG_ON(!page_m || PageAnon(page_m));
93396 +
93397 + vma_m = pax_find_mirror_vma(vma);
93398 + if (!vma_m)
93399 + return;
93400 +
93401 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
93402 + address_m = address + SEGMEXEC_TASK_SIZE;
93403 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
93404 + pte_m = pte_offset_map(pmd_m, address_m);
93405 + ptl_m = pte_lockptr(mm, pmd_m);
93406 + if (ptl != ptl_m) {
93407 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
93408 + if (!pte_none(*pte_m))
93409 + goto out;
93410 + }
93411 +
93412 + entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
93413 + page_cache_get(page_m);
93414 + page_add_file_rmap(page_m);
93415 + inc_mm_counter_fast(mm, MM_FILEPAGES);
93416 + set_pte_at(mm, address_m, pte_m, entry_m);
93417 + update_mmu_cache(vma_m, address_m, pte_m);
93418 +out:
93419 + if (ptl != ptl_m)
93420 + spin_unlock(ptl_m);
93421 + pte_unmap(pte_m);
93422 +}
93423 +
93424 +static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
93425 +{
93426 + struct mm_struct *mm = vma->vm_mm;
93427 + unsigned long address_m;
93428 + spinlock_t *ptl_m;
93429 + struct vm_area_struct *vma_m;
93430 + pmd_t *pmd_m;
93431 + pte_t *pte_m, entry_m;
93432 +
93433 + vma_m = pax_find_mirror_vma(vma);
93434 + if (!vma_m)
93435 + return;
93436 +
93437 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
93438 + address_m = address + SEGMEXEC_TASK_SIZE;
93439 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
93440 + pte_m = pte_offset_map(pmd_m, address_m);
93441 + ptl_m = pte_lockptr(mm, pmd_m);
93442 + if (ptl != ptl_m) {
93443 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
93444 + if (!pte_none(*pte_m))
93445 + goto out;
93446 + }
93447 +
93448 + entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
93449 + set_pte_at(mm, address_m, pte_m, entry_m);
93450 +out:
93451 + if (ptl != ptl_m)
93452 + spin_unlock(ptl_m);
93453 + pte_unmap(pte_m);
93454 +}
93455 +
93456 +static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
93457 +{
93458 + struct page *page_m;
93459 + pte_t entry;
93460 +
93461 + if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
93462 + goto out;
93463 +
93464 + entry = *pte;
93465 + page_m = vm_normal_page(vma, address, entry);
93466 + if (!page_m)
93467 + pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
93468 + else if (PageAnon(page_m)) {
93469 + if (pax_find_mirror_vma(vma)) {
93470 + pte_unmap_unlock(pte, ptl);
93471 + lock_page(page_m);
93472 + pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
93473 + if (pte_same(entry, *pte))
93474 + pax_mirror_anon_pte(vma, address, page_m, ptl);
93475 + else
93476 + unlock_page(page_m);
93477 + }
93478 + } else
93479 + pax_mirror_file_pte(vma, address, page_m, ptl);
93480 +
93481 +out:
93482 + pte_unmap_unlock(pte, ptl);
93483 +}
93484 +#endif
93485 +
93486 /*
93487 * This routine handles present pages, when users try to write
93488 * to a shared page. It is done by copying the page to a new address
93489 @@ -2860,6 +3056,12 @@ gotten:
93490 */
93491 page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
93492 if (likely(pte_same(*page_table, orig_pte))) {
93493 +
93494 +#ifdef CONFIG_PAX_SEGMEXEC
93495 + if (pax_find_mirror_vma(vma))
93496 + BUG_ON(!trylock_page(new_page));
93497 +#endif
93498 +
93499 if (old_page) {
93500 if (!PageAnon(old_page)) {
93501 dec_mm_counter_fast(mm, MM_FILEPAGES);
93502 @@ -2911,6 +3113,10 @@ gotten:
93503 page_remove_rmap(old_page);
93504 }
93505
93506 +#ifdef CONFIG_PAX_SEGMEXEC
93507 + pax_mirror_anon_pte(vma, address, new_page, ptl);
93508 +#endif
93509 +
93510 /* Free the old page.. */
93511 new_page = old_page;
93512 ret |= VM_FAULT_WRITE;
93513 @@ -3184,6 +3390,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
93514 swap_free(entry);
93515 if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
93516 try_to_free_swap(page);
93517 +
93518 +#ifdef CONFIG_PAX_SEGMEXEC
93519 + if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
93520 +#endif
93521 +
93522 unlock_page(page);
93523 if (page != swapcache) {
93524 /*
93525 @@ -3207,6 +3418,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
93526
93527 /* No need to invalidate - it was non-present before */
93528 update_mmu_cache(vma, address, page_table);
93529 +
93530 +#ifdef CONFIG_PAX_SEGMEXEC
93531 + pax_mirror_anon_pte(vma, address, page, ptl);
93532 +#endif
93533 +
93534 unlock:
93535 pte_unmap_unlock(page_table, ptl);
93536 out:
93537 @@ -3226,40 +3442,6 @@ out_release:
93538 }
93539
93540 /*
93541 - * This is like a special single-page "expand_{down|up}wards()",
93542 - * except we must first make sure that 'address{-|+}PAGE_SIZE'
93543 - * doesn't hit another vma.
93544 - */
93545 -static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
93546 -{
93547 - address &= PAGE_MASK;
93548 - if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
93549 - struct vm_area_struct *prev = vma->vm_prev;
93550 -
93551 - /*
93552 - * Is there a mapping abutting this one below?
93553 - *
93554 - * That's only ok if it's the same stack mapping
93555 - * that has gotten split..
93556 - */
93557 - if (prev && prev->vm_end == address)
93558 - return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
93559 -
93560 - expand_downwards(vma, address - PAGE_SIZE);
93561 - }
93562 - if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
93563 - struct vm_area_struct *next = vma->vm_next;
93564 -
93565 - /* As VM_GROWSDOWN but s/below/above/ */
93566 - if (next && next->vm_start == address + PAGE_SIZE)
93567 - return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
93568 -
93569 - expand_upwards(vma, address + PAGE_SIZE);
93570 - }
93571 - return 0;
93572 -}
93573 -
93574 -/*
93575 * We enter with non-exclusive mmap_sem (to exclude vma changes,
93576 * but allow concurrent faults), and pte mapped but not yet locked.
93577 * We return with mmap_sem still held, but pte unmapped and unlocked.
93578 @@ -3268,27 +3450,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
93579 unsigned long address, pte_t *page_table, pmd_t *pmd,
93580 unsigned int flags)
93581 {
93582 - struct page *page;
93583 + struct page *page = NULL;
93584 spinlock_t *ptl;
93585 pte_t entry;
93586
93587 - pte_unmap(page_table);
93588 -
93589 - /* Check if we need to add a guard page to the stack */
93590 - if (check_stack_guard_page(vma, address) < 0)
93591 - return VM_FAULT_SIGBUS;
93592 -
93593 - /* Use the zero-page for reads */
93594 if (!(flags & FAULT_FLAG_WRITE)) {
93595 entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
93596 vma->vm_page_prot));
93597 - page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
93598 + ptl = pte_lockptr(mm, pmd);
93599 + spin_lock(ptl);
93600 if (!pte_none(*page_table))
93601 goto unlock;
93602 goto setpte;
93603 }
93604
93605 /* Allocate our own private page. */
93606 + pte_unmap(page_table);
93607 +
93608 if (unlikely(anon_vma_prepare(vma)))
93609 goto oom;
93610 page = alloc_zeroed_user_highpage_movable(vma, address);
93611 @@ -3312,6 +3490,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
93612 if (!pte_none(*page_table))
93613 goto release;
93614
93615 +#ifdef CONFIG_PAX_SEGMEXEC
93616 + if (pax_find_mirror_vma(vma))
93617 + BUG_ON(!trylock_page(page));
93618 +#endif
93619 +
93620 inc_mm_counter_fast(mm, MM_ANONPAGES);
93621 page_add_new_anon_rmap(page, vma, address);
93622 setpte:
93623 @@ -3319,6 +3502,12 @@ setpte:
93624
93625 /* No need to invalidate - it was non-present before */
93626 update_mmu_cache(vma, address, page_table);
93627 +
93628 +#ifdef CONFIG_PAX_SEGMEXEC
93629 + if (page)
93630 + pax_mirror_anon_pte(vma, address, page, ptl);
93631 +#endif
93632 +
93633 unlock:
93634 pte_unmap_unlock(page_table, ptl);
93635 return 0;
93636 @@ -3535,6 +3724,11 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
93637 return ret;
93638 }
93639 do_set_pte(vma, address, fault_page, pte, false, false);
93640 +
93641 +#ifdef CONFIG_PAX_SEGMEXEC
93642 + pax_mirror_file_pte(vma, address, fault_page, ptl);
93643 +#endif
93644 +
93645 unlock_page(fault_page);
93646 unlock_out:
93647 pte_unmap_unlock(pte, ptl);
93648 @@ -3576,7 +3770,18 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
93649 page_cache_release(fault_page);
93650 goto uncharge_out;
93651 }
93652 +
93653 +#ifdef CONFIG_PAX_SEGMEXEC
93654 + if (pax_find_mirror_vma(vma))
93655 + BUG_ON(!trylock_page(new_page));
93656 +#endif
93657 +
93658 do_set_pte(vma, address, new_page, pte, true, true);
93659 +
93660 +#ifdef CONFIG_PAX_SEGMEXEC
93661 + pax_mirror_anon_pte(vma, address, new_page, ptl);
93662 +#endif
93663 +
93664 pte_unmap_unlock(pte, ptl);
93665 unlock_page(fault_page);
93666 page_cache_release(fault_page);
93667 @@ -3624,6 +3829,11 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma,
93668 return ret;
93669 }
93670 do_set_pte(vma, address, fault_page, pte, true, false);
93671 +
93672 +#ifdef CONFIG_PAX_SEGMEXEC
93673 + pax_mirror_file_pte(vma, address, fault_page, ptl);
93674 +#endif
93675 +
93676 pte_unmap_unlock(pte, ptl);
93677
93678 if (set_page_dirty(fault_page))
93679 @@ -3854,6 +4064,12 @@ static int handle_pte_fault(struct mm_struct *mm,
93680 if (flags & FAULT_FLAG_WRITE)
93681 flush_tlb_fix_spurious_fault(vma, address);
93682 }
93683 +
93684 +#ifdef CONFIG_PAX_SEGMEXEC
93685 + pax_mirror_pte(vma, address, pte, pmd, ptl);
93686 + return 0;
93687 +#endif
93688 +
93689 unlock:
93690 pte_unmap_unlock(pte, ptl);
93691 return 0;
93692 @@ -3870,9 +4086,41 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
93693 pmd_t *pmd;
93694 pte_t *pte;
93695
93696 +#ifdef CONFIG_PAX_SEGMEXEC
93697 + struct vm_area_struct *vma_m;
93698 +#endif
93699 +
93700 if (unlikely(is_vm_hugetlb_page(vma)))
93701 return hugetlb_fault(mm, vma, address, flags);
93702
93703 +#ifdef CONFIG_PAX_SEGMEXEC
93704 + vma_m = pax_find_mirror_vma(vma);
93705 + if (vma_m) {
93706 + unsigned long address_m;
93707 + pgd_t *pgd_m;
93708 + pud_t *pud_m;
93709 + pmd_t *pmd_m;
93710 +
93711 + if (vma->vm_start > vma_m->vm_start) {
93712 + address_m = address;
93713 + address -= SEGMEXEC_TASK_SIZE;
93714 + vma = vma_m;
93715 + } else
93716 + address_m = address + SEGMEXEC_TASK_SIZE;
93717 +
93718 + pgd_m = pgd_offset(mm, address_m);
93719 + pud_m = pud_alloc(mm, pgd_m, address_m);
93720 + if (!pud_m)
93721 + return VM_FAULT_OOM;
93722 + pmd_m = pmd_alloc(mm, pud_m, address_m);
93723 + if (!pmd_m)
93724 + return VM_FAULT_OOM;
93725 + if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
93726 + return VM_FAULT_OOM;
93727 + pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
93728 + }
93729 +#endif
93730 +
93731 pgd = pgd_offset(mm, address);
93732 pud = pud_alloc(mm, pgd, address);
93733 if (!pud)
93734 @@ -4000,6 +4248,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
93735 spin_unlock(&mm->page_table_lock);
93736 return 0;
93737 }
93738 +
93739 +int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
93740 +{
93741 + pud_t *new = pud_alloc_one(mm, address);
93742 + if (!new)
93743 + return -ENOMEM;
93744 +
93745 + smp_wmb(); /* See comment in __pte_alloc */
93746 +
93747 + spin_lock(&mm->page_table_lock);
93748 + if (pgd_present(*pgd)) /* Another has populated it */
93749 + pud_free(mm, new);
93750 + else
93751 + pgd_populate_kernel(mm, pgd, new);
93752 + spin_unlock(&mm->page_table_lock);
93753 + return 0;
93754 +}
93755 #endif /* __PAGETABLE_PUD_FOLDED */
93756
93757 #ifndef __PAGETABLE_PMD_FOLDED
93758 @@ -4030,6 +4295,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
93759 spin_unlock(&mm->page_table_lock);
93760 return 0;
93761 }
93762 +
93763 +int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
93764 +{
93765 + pmd_t *new = pmd_alloc_one(mm, address);
93766 + if (!new)
93767 + return -ENOMEM;
93768 +
93769 + smp_wmb(); /* See comment in __pte_alloc */
93770 +
93771 + spin_lock(&mm->page_table_lock);
93772 +#ifndef __ARCH_HAS_4LEVEL_HACK
93773 + if (pud_present(*pud)) /* Another has populated it */
93774 + pmd_free(mm, new);
93775 + else
93776 + pud_populate_kernel(mm, pud, new);
93777 +#else
93778 + if (pgd_present(*pud)) /* Another has populated it */
93779 + pmd_free(mm, new);
93780 + else
93781 + pgd_populate_kernel(mm, pud, new);
93782 +#endif /* __ARCH_HAS_4LEVEL_HACK */
93783 + spin_unlock(&mm->page_table_lock);
93784 + return 0;
93785 +}
93786 #endif /* __PAGETABLE_PMD_FOLDED */
93787
93788 #if !defined(__HAVE_ARCH_GATE_AREA)
93789 @@ -4043,7 +4332,7 @@ static int __init gate_vma_init(void)
93790 gate_vma.vm_start = FIXADDR_USER_START;
93791 gate_vma.vm_end = FIXADDR_USER_END;
93792 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
93793 - gate_vma.vm_page_prot = __P101;
93794 + gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
93795
93796 return 0;
93797 }
93798 @@ -4177,8 +4466,8 @@ out:
93799 return ret;
93800 }
93801
93802 -int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
93803 - void *buf, int len, int write)
93804 +ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
93805 + void *buf, size_t len, int write)
93806 {
93807 resource_size_t phys_addr;
93808 unsigned long prot = 0;
93809 @@ -4204,8 +4493,8 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
93810 * Access another process' address space as given in mm. If non-NULL, use the
93811 * given task for page fault accounting.
93812 */
93813 -static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
93814 - unsigned long addr, void *buf, int len, int write)
93815 +static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
93816 + unsigned long addr, void *buf, size_t len, int write)
93817 {
93818 struct vm_area_struct *vma;
93819 void *old_buf = buf;
93820 @@ -4213,7 +4502,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
93821 down_read(&mm->mmap_sem);
93822 /* ignore errors, just check how much was successfully transferred */
93823 while (len) {
93824 - int bytes, ret, offset;
93825 + ssize_t bytes, ret, offset;
93826 void *maddr;
93827 struct page *page = NULL;
93828
93829 @@ -4272,8 +4561,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
93830 *
93831 * The caller must hold a reference on @mm.
93832 */
93833 -int access_remote_vm(struct mm_struct *mm, unsigned long addr,
93834 - void *buf, int len, int write)
93835 +ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
93836 + void *buf, size_t len, int write)
93837 {
93838 return __access_remote_vm(NULL, mm, addr, buf, len, write);
93839 }
93840 @@ -4283,11 +4572,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
93841 * Source/target buffer must be kernel space,
93842 * Do not walk the page table directly, use get_user_pages
93843 */
93844 -int access_process_vm(struct task_struct *tsk, unsigned long addr,
93845 - void *buf, int len, int write)
93846 +ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
93847 + void *buf, size_t len, int write)
93848 {
93849 struct mm_struct *mm;
93850 - int ret;
93851 + ssize_t ret;
93852
93853 mm = get_task_mm(tsk);
93854 if (!mm)
93855 diff --git a/mm/mempolicy.c b/mm/mempolicy.c
93856 index 35f9f91..bed4575 100644
93857 --- a/mm/mempolicy.c
93858 +++ b/mm/mempolicy.c
93859 @@ -747,6 +747,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
93860 unsigned long vmstart;
93861 unsigned long vmend;
93862
93863 +#ifdef CONFIG_PAX_SEGMEXEC
93864 + struct vm_area_struct *vma_m;
93865 +#endif
93866 +
93867 vma = find_vma(mm, start);
93868 if (!vma || vma->vm_start > start)
93869 return -EFAULT;
93870 @@ -790,6 +794,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
93871 err = vma_replace_policy(vma, new_pol);
93872 if (err)
93873 goto out;
93874 +
93875 +#ifdef CONFIG_PAX_SEGMEXEC
93876 + vma_m = pax_find_mirror_vma(vma);
93877 + if (vma_m) {
93878 + err = vma_replace_policy(vma_m, new_pol);
93879 + if (err)
93880 + goto out;
93881 + }
93882 +#endif
93883 +
93884 }
93885
93886 out:
93887 @@ -1222,6 +1236,17 @@ static long do_mbind(unsigned long start, unsigned long len,
93888
93889 if (end < start)
93890 return -EINVAL;
93891 +
93892 +#ifdef CONFIG_PAX_SEGMEXEC
93893 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
93894 + if (end > SEGMEXEC_TASK_SIZE)
93895 + return -EINVAL;
93896 + } else
93897 +#endif
93898 +
93899 + if (end > TASK_SIZE)
93900 + return -EINVAL;
93901 +
93902 if (end == start)
93903 return 0;
93904
93905 @@ -1447,8 +1472,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
93906 */
93907 tcred = __task_cred(task);
93908 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
93909 - !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
93910 - !capable(CAP_SYS_NICE)) {
93911 + !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
93912 rcu_read_unlock();
93913 err = -EPERM;
93914 goto out_put;
93915 @@ -1479,6 +1503,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
93916 goto out;
93917 }
93918
93919 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
93920 + if (mm != current->mm &&
93921 + (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
93922 + mmput(mm);
93923 + err = -EPERM;
93924 + goto out;
93925 + }
93926 +#endif
93927 +
93928 err = do_migrate_pages(mm, old, new,
93929 capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
93930
93931 diff --git a/mm/migrate.c b/mm/migrate.c
93932 index bed4880..a493f67 100644
93933 --- a/mm/migrate.c
93934 +++ b/mm/migrate.c
93935 @@ -1485,8 +1485,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
93936 */
93937 tcred = __task_cred(task);
93938 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
93939 - !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
93940 - !capable(CAP_SYS_NICE)) {
93941 + !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
93942 rcu_read_unlock();
93943 err = -EPERM;
93944 goto out;
93945 diff --git a/mm/mlock.c b/mm/mlock.c
93946 index b1eb536..091d154 100644
93947 --- a/mm/mlock.c
93948 +++ b/mm/mlock.c
93949 @@ -14,6 +14,7 @@
93950 #include <linux/pagevec.h>
93951 #include <linux/mempolicy.h>
93952 #include <linux/syscalls.h>
93953 +#include <linux/security.h>
93954 #include <linux/sched.h>
93955 #include <linux/export.h>
93956 #include <linux/rmap.h>
93957 @@ -606,7 +607,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
93958 {
93959 unsigned long nstart, end, tmp;
93960 struct vm_area_struct * vma, * prev;
93961 - int error;
93962 + int error = 0;
93963
93964 VM_BUG_ON(start & ~PAGE_MASK);
93965 VM_BUG_ON(len != PAGE_ALIGN(len));
93966 @@ -615,6 +616,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
93967 return -EINVAL;
93968 if (end == start)
93969 return 0;
93970 + if (end > TASK_SIZE)
93971 + return -EINVAL;
93972 +
93973 vma = find_vma(current->mm, start);
93974 if (!vma || vma->vm_start > start)
93975 return -ENOMEM;
93976 @@ -626,6 +630,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
93977 for (nstart = start ; ; ) {
93978 vm_flags_t newflags;
93979
93980 +#ifdef CONFIG_PAX_SEGMEXEC
93981 + if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
93982 + break;
93983 +#endif
93984 +
93985 /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
93986
93987 newflags = vma->vm_flags & ~VM_LOCKED;
93988 @@ -739,6 +748,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
93989 locked += current->mm->locked_vm;
93990
93991 /* check against resource limits */
93992 + gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
93993 if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
93994 error = do_mlock(start, len, 1);
93995
93996 @@ -776,6 +786,11 @@ static int do_mlockall(int flags)
93997 for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
93998 vm_flags_t newflags;
93999
94000 +#ifdef CONFIG_PAX_SEGMEXEC
94001 + if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
94002 + break;
94003 +#endif
94004 +
94005 newflags = vma->vm_flags & ~VM_LOCKED;
94006 if (flags & MCL_CURRENT)
94007 newflags |= VM_LOCKED;
94008 @@ -807,8 +822,10 @@ SYSCALL_DEFINE1(mlockall, int, flags)
94009 lock_limit >>= PAGE_SHIFT;
94010
94011 ret = -ENOMEM;
94012 +
94013 + gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
94014 +
94015 down_write(&current->mm->mmap_sem);
94016 -
94017 if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
94018 capable(CAP_IPC_LOCK))
94019 ret = do_mlockall(flags);
94020 diff --git a/mm/mmap.c b/mm/mmap.c
94021 index b1202cf..ee487f8 100644
94022 --- a/mm/mmap.c
94023 +++ b/mm/mmap.c
94024 @@ -37,6 +37,7 @@
94025 #include <linux/sched/sysctl.h>
94026 #include <linux/notifier.h>
94027 #include <linux/memory.h>
94028 +#include <linux/random.h>
94029
94030 #include <asm/uaccess.h>
94031 #include <asm/cacheflush.h>
94032 @@ -53,6 +54,16 @@
94033 #define arch_rebalance_pgtables(addr, len) (addr)
94034 #endif
94035
94036 +static inline void verify_mm_writelocked(struct mm_struct *mm)
94037 +{
94038 +#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
94039 + if (unlikely(down_read_trylock(&mm->mmap_sem))) {
94040 + up_read(&mm->mmap_sem);
94041 + BUG();
94042 + }
94043 +#endif
94044 +}
94045 +
94046 static void unmap_region(struct mm_struct *mm,
94047 struct vm_area_struct *vma, struct vm_area_struct *prev,
94048 unsigned long start, unsigned long end);
94049 @@ -72,16 +83,25 @@ static void unmap_region(struct mm_struct *mm,
94050 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
94051 *
94052 */
94053 -pgprot_t protection_map[16] = {
94054 +pgprot_t protection_map[16] __read_only = {
94055 __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
94056 __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
94057 };
94058
94059 -pgprot_t vm_get_page_prot(unsigned long vm_flags)
94060 +pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
94061 {
94062 - return __pgprot(pgprot_val(protection_map[vm_flags &
94063 + pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
94064 (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
94065 pgprot_val(arch_vm_get_page_prot(vm_flags)));
94066 +
94067 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
94068 + if (!(__supported_pte_mask & _PAGE_NX) &&
94069 + (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
94070 + (vm_flags & (VM_READ | VM_WRITE)))
94071 + prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
94072 +#endif
94073 +
94074 + return prot;
94075 }
94076 EXPORT_SYMBOL(vm_get_page_prot);
94077
94078 @@ -91,6 +111,7 @@ unsigned long sysctl_overcommit_kbytes __read_mostly;
94079 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
94080 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
94081 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
94082 +unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
94083 /*
94084 * Make sure vm_committed_as in one cacheline and not cacheline shared with
94085 * other variables. It can be updated by several CPUs frequently.
94086 @@ -247,6 +268,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
94087 struct vm_area_struct *next = vma->vm_next;
94088
94089 might_sleep();
94090 + BUG_ON(vma->vm_mirror);
94091 if (vma->vm_ops && vma->vm_ops->close)
94092 vma->vm_ops->close(vma);
94093 if (vma->vm_file)
94094 @@ -291,6 +313,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
94095 * not page aligned -Ram Gupta
94096 */
94097 rlim = rlimit(RLIMIT_DATA);
94098 + gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
94099 if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
94100 (mm->end_data - mm->start_data) > rlim)
94101 goto out;
94102 @@ -942,6 +965,12 @@ static int
94103 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
94104 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
94105 {
94106 +
94107 +#ifdef CONFIG_PAX_SEGMEXEC
94108 + if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
94109 + return 0;
94110 +#endif
94111 +
94112 if (is_mergeable_vma(vma, file, vm_flags) &&
94113 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
94114 if (vma->vm_pgoff == vm_pgoff)
94115 @@ -961,6 +990,12 @@ static int
94116 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
94117 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
94118 {
94119 +
94120 +#ifdef CONFIG_PAX_SEGMEXEC
94121 + if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
94122 + return 0;
94123 +#endif
94124 +
94125 if (is_mergeable_vma(vma, file, vm_flags) &&
94126 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
94127 pgoff_t vm_pglen;
94128 @@ -1003,13 +1038,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
94129 struct vm_area_struct *vma_merge(struct mm_struct *mm,
94130 struct vm_area_struct *prev, unsigned long addr,
94131 unsigned long end, unsigned long vm_flags,
94132 - struct anon_vma *anon_vma, struct file *file,
94133 + struct anon_vma *anon_vma, struct file *file,
94134 pgoff_t pgoff, struct mempolicy *policy)
94135 {
94136 pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
94137 struct vm_area_struct *area, *next;
94138 int err;
94139
94140 +#ifdef CONFIG_PAX_SEGMEXEC
94141 + unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
94142 + struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
94143 +
94144 + BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
94145 +#endif
94146 +
94147 /*
94148 * We later require that vma->vm_flags == vm_flags,
94149 * so this tests vma->vm_flags & VM_SPECIAL, too.
94150 @@ -1025,6 +1067,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
94151 if (next && next->vm_end == end) /* cases 6, 7, 8 */
94152 next = next->vm_next;
94153
94154 +#ifdef CONFIG_PAX_SEGMEXEC
94155 + if (prev)
94156 + prev_m = pax_find_mirror_vma(prev);
94157 + if (area)
94158 + area_m = pax_find_mirror_vma(area);
94159 + if (next)
94160 + next_m = pax_find_mirror_vma(next);
94161 +#endif
94162 +
94163 /*
94164 * Can it merge with the predecessor?
94165 */
94166 @@ -1044,9 +1095,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
94167 /* cases 1, 6 */
94168 err = vma_adjust(prev, prev->vm_start,
94169 next->vm_end, prev->vm_pgoff, NULL);
94170 - } else /* cases 2, 5, 7 */
94171 +
94172 +#ifdef CONFIG_PAX_SEGMEXEC
94173 + if (!err && prev_m)
94174 + err = vma_adjust(prev_m, prev_m->vm_start,
94175 + next_m->vm_end, prev_m->vm_pgoff, NULL);
94176 +#endif
94177 +
94178 + } else { /* cases 2, 5, 7 */
94179 err = vma_adjust(prev, prev->vm_start,
94180 end, prev->vm_pgoff, NULL);
94181 +
94182 +#ifdef CONFIG_PAX_SEGMEXEC
94183 + if (!err && prev_m)
94184 + err = vma_adjust(prev_m, prev_m->vm_start,
94185 + end_m, prev_m->vm_pgoff, NULL);
94186 +#endif
94187 +
94188 + }
94189 if (err)
94190 return NULL;
94191 khugepaged_enter_vma_merge(prev);
94192 @@ -1060,12 +1126,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
94193 mpol_equal(policy, vma_policy(next)) &&
94194 can_vma_merge_before(next, vm_flags,
94195 anon_vma, file, pgoff+pglen)) {
94196 - if (prev && addr < prev->vm_end) /* case 4 */
94197 + if (prev && addr < prev->vm_end) { /* case 4 */
94198 err = vma_adjust(prev, prev->vm_start,
94199 addr, prev->vm_pgoff, NULL);
94200 - else /* cases 3, 8 */
94201 +
94202 +#ifdef CONFIG_PAX_SEGMEXEC
94203 + if (!err && prev_m)
94204 + err = vma_adjust(prev_m, prev_m->vm_start,
94205 + addr_m, prev_m->vm_pgoff, NULL);
94206 +#endif
94207 +
94208 + } else { /* cases 3, 8 */
94209 err = vma_adjust(area, addr, next->vm_end,
94210 next->vm_pgoff - pglen, NULL);
94211 +
94212 +#ifdef CONFIG_PAX_SEGMEXEC
94213 + if (!err && area_m)
94214 + err = vma_adjust(area_m, addr_m, next_m->vm_end,
94215 + next_m->vm_pgoff - pglen, NULL);
94216 +#endif
94217 +
94218 + }
94219 if (err)
94220 return NULL;
94221 khugepaged_enter_vma_merge(area);
94222 @@ -1174,8 +1255,10 @@ none:
94223 void vm_stat_account(struct mm_struct *mm, unsigned long flags,
94224 struct file *file, long pages)
94225 {
94226 - const unsigned long stack_flags
94227 - = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
94228 +
94229 +#ifdef CONFIG_PAX_RANDMMAP
94230 + if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
94231 +#endif
94232
94233 mm->total_vm += pages;
94234
94235 @@ -1183,7 +1266,7 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
94236 mm->shared_vm += pages;
94237 if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
94238 mm->exec_vm += pages;
94239 - } else if (flags & stack_flags)
94240 + } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
94241 mm->stack_vm += pages;
94242 }
94243 #endif /* CONFIG_PROC_FS */
94244 @@ -1213,6 +1296,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
94245 locked += mm->locked_vm;
94246 lock_limit = rlimit(RLIMIT_MEMLOCK);
94247 lock_limit >>= PAGE_SHIFT;
94248 + gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
94249 if (locked > lock_limit && !capable(CAP_IPC_LOCK))
94250 return -EAGAIN;
94251 }
94252 @@ -1239,7 +1323,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
94253 * (the exception is when the underlying filesystem is noexec
94254 * mounted, in which case we dont add PROT_EXEC.)
94255 */
94256 - if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
94257 + if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
94258 if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
94259 prot |= PROT_EXEC;
94260
94261 @@ -1265,7 +1349,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
94262 /* Obtain the address to map to. we verify (or select) it and ensure
94263 * that it represents a valid section of the address space.
94264 */
94265 - addr = get_unmapped_area(file, addr, len, pgoff, flags);
94266 + addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
94267 if (addr & ~PAGE_MASK)
94268 return addr;
94269
94270 @@ -1276,6 +1360,43 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
94271 vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
94272 mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
94273
94274 +#ifdef CONFIG_PAX_MPROTECT
94275 + if (mm->pax_flags & MF_PAX_MPROTECT) {
94276 +
94277 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
94278 + if (file && !pgoff && (vm_flags & VM_EXEC) && mm->binfmt &&
94279 + mm->binfmt->handle_mmap)
94280 + mm->binfmt->handle_mmap(file);
94281 +#endif
94282 +
94283 +#ifndef CONFIG_PAX_MPROTECT_COMPAT
94284 + if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
94285 + gr_log_rwxmmap(file);
94286 +
94287 +#ifdef CONFIG_PAX_EMUPLT
94288 + vm_flags &= ~VM_EXEC;
94289 +#else
94290 + return -EPERM;
94291 +#endif
94292 +
94293 + }
94294 +
94295 + if (!(vm_flags & VM_EXEC))
94296 + vm_flags &= ~VM_MAYEXEC;
94297 +#else
94298 + if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
94299 + vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
94300 +#endif
94301 + else
94302 + vm_flags &= ~VM_MAYWRITE;
94303 + }
94304 +#endif
94305 +
94306 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
94307 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
94308 + vm_flags &= ~VM_PAGEEXEC;
94309 +#endif
94310 +
94311 if (flags & MAP_LOCKED)
94312 if (!can_do_mlock())
94313 return -EPERM;
94314 @@ -1363,6 +1484,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
94315 vm_flags |= VM_NORESERVE;
94316 }
94317
94318 + if (!gr_acl_handle_mmap(file, prot))
94319 + return -EACCES;
94320 +
94321 addr = mmap_region(file, addr, len, vm_flags, pgoff);
94322 if (!IS_ERR_VALUE(addr) &&
94323 ((vm_flags & VM_LOCKED) ||
94324 @@ -1456,7 +1580,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
94325 vm_flags_t vm_flags = vma->vm_flags;
94326
94327 /* If it was private or non-writable, the write bit is already clear */
94328 - if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
94329 + if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
94330 return 0;
94331
94332 /* The backer wishes to know when pages are first written to? */
94333 @@ -1502,7 +1626,22 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
94334 struct rb_node **rb_link, *rb_parent;
94335 unsigned long charged = 0;
94336
94337 +#ifdef CONFIG_PAX_SEGMEXEC
94338 + struct vm_area_struct *vma_m = NULL;
94339 +#endif
94340 +
94341 + /*
94342 + * mm->mmap_sem is required to protect against another thread
94343 + * changing the mappings in case we sleep.
94344 + */
94345 + verify_mm_writelocked(mm);
94346 +
94347 /* Check against address space limit. */
94348 +
94349 +#ifdef CONFIG_PAX_RANDMMAP
94350 + if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
94351 +#endif
94352 +
94353 if (!may_expand_vm(mm, len >> PAGE_SHIFT)) {
94354 unsigned long nr_pages;
94355
94356 @@ -1521,11 +1660,10 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
94357
94358 /* Clear old maps */
94359 error = -ENOMEM;
94360 -munmap_back:
94361 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
94362 if (do_munmap(mm, addr, len))
94363 return -ENOMEM;
94364 - goto munmap_back;
94365 + BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
94366 }
94367
94368 /*
94369 @@ -1556,6 +1694,16 @@ munmap_back:
94370 goto unacct_error;
94371 }
94372
94373 +#ifdef CONFIG_PAX_SEGMEXEC
94374 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
94375 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
94376 + if (!vma_m) {
94377 + error = -ENOMEM;
94378 + goto free_vma;
94379 + }
94380 + }
94381 +#endif
94382 +
94383 vma->vm_mm = mm;
94384 vma->vm_start = addr;
94385 vma->vm_end = addr + len;
94386 @@ -1575,6 +1723,13 @@ munmap_back:
94387 if (error)
94388 goto unmap_and_free_vma;
94389
94390 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
94391 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
94392 + vma->vm_flags |= VM_PAGEEXEC;
94393 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
94394 + }
94395 +#endif
94396 +
94397 /* Can addr have changed??
94398 *
94399 * Answer: Yes, several device drivers can do it in their
94400 @@ -1608,6 +1763,12 @@ munmap_back:
94401 }
94402
94403 vma_link(mm, vma, prev, rb_link, rb_parent);
94404 +
94405 +#ifdef CONFIG_PAX_SEGMEXEC
94406 + if (vma_m)
94407 + BUG_ON(pax_mirror_vma(vma_m, vma));
94408 +#endif
94409 +
94410 /* Once vma denies write, undo our temporary denial count */
94411 if (vm_flags & VM_DENYWRITE)
94412 allow_write_access(file);
94413 @@ -1616,6 +1777,7 @@ out:
94414 perf_event_mmap(vma);
94415
94416 vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
94417 + track_exec_limit(mm, addr, addr + len, vm_flags);
94418 if (vm_flags & VM_LOCKED) {
94419 if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
94420 vma == get_gate_vma(current->mm)))
94421 @@ -1648,6 +1810,12 @@ unmap_and_free_vma:
94422 unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
94423 charged = 0;
94424 free_vma:
94425 +
94426 +#ifdef CONFIG_PAX_SEGMEXEC
94427 + if (vma_m)
94428 + kmem_cache_free(vm_area_cachep, vma_m);
94429 +#endif
94430 +
94431 kmem_cache_free(vm_area_cachep, vma);
94432 unacct_error:
94433 if (charged)
94434 @@ -1655,7 +1823,63 @@ unacct_error:
94435 return error;
94436 }
94437
94438 -unsigned long unmapped_area(struct vm_unmapped_area_info *info)
94439 +#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
94440 +unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
94441 +{
94442 + if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
94443 + return ((prandom_u32() & 0xFF) + 1) << PAGE_SHIFT;
94444 +
94445 + return 0;
94446 +}
94447 +#endif
94448 +
94449 +bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
94450 +{
94451 + if (!vma) {
94452 +#ifdef CONFIG_STACK_GROWSUP
94453 + if (addr > sysctl_heap_stack_gap)
94454 + vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
94455 + else
94456 + vma = find_vma(current->mm, 0);
94457 + if (vma && (vma->vm_flags & VM_GROWSUP))
94458 + return false;
94459 +#endif
94460 + return true;
94461 + }
94462 +
94463 + if (addr + len > vma->vm_start)
94464 + return false;
94465 +
94466 + if (vma->vm_flags & VM_GROWSDOWN)
94467 + return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
94468 +#ifdef CONFIG_STACK_GROWSUP
94469 + else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
94470 + return addr - vma->vm_prev->vm_end >= sysctl_heap_stack_gap;
94471 +#endif
94472 + else if (offset)
94473 + return offset <= vma->vm_start - addr - len;
94474 +
94475 + return true;
94476 +}
94477 +
94478 +unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
94479 +{
94480 + if (vma->vm_start < len)
94481 + return -ENOMEM;
94482 +
94483 + if (!(vma->vm_flags & VM_GROWSDOWN)) {
94484 + if (offset <= vma->vm_start - len)
94485 + return vma->vm_start - len - offset;
94486 + else
94487 + return -ENOMEM;
94488 + }
94489 +
94490 + if (sysctl_heap_stack_gap <= vma->vm_start - len)
94491 + return vma->vm_start - len - sysctl_heap_stack_gap;
94492 + return -ENOMEM;
94493 +}
94494 +
94495 +unsigned long unmapped_area(const struct vm_unmapped_area_info *info)
94496 {
94497 /*
94498 * We implement the search by looking for an rbtree node that
94499 @@ -1703,11 +1927,29 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
94500 }
94501 }
94502
94503 - gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
94504 + gap_start = vma->vm_prev ? vma->vm_prev->vm_end: 0;
94505 check_current:
94506 /* Check if current node has a suitable gap */
94507 if (gap_start > high_limit)
94508 return -ENOMEM;
94509 +
94510 + if (gap_end - gap_start > info->threadstack_offset)
94511 + gap_start += info->threadstack_offset;
94512 + else
94513 + gap_start = gap_end;
94514 +
94515 + if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
94516 + if (gap_end - gap_start > sysctl_heap_stack_gap)
94517 + gap_start += sysctl_heap_stack_gap;
94518 + else
94519 + gap_start = gap_end;
94520 + }
94521 + if (vma->vm_flags & VM_GROWSDOWN) {
94522 + if (gap_end - gap_start > sysctl_heap_stack_gap)
94523 + gap_end -= sysctl_heap_stack_gap;
94524 + else
94525 + gap_end = gap_start;
94526 + }
94527 if (gap_end >= low_limit && gap_end - gap_start >= length)
94528 goto found;
94529
94530 @@ -1757,7 +1999,7 @@ found:
94531 return gap_start;
94532 }
94533
94534 -unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
94535 +unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info)
94536 {
94537 struct mm_struct *mm = current->mm;
94538 struct vm_area_struct *vma;
94539 @@ -1811,6 +2053,24 @@ check_current:
94540 gap_end = vma->vm_start;
94541 if (gap_end < low_limit)
94542 return -ENOMEM;
94543 +
94544 + if (gap_end - gap_start > info->threadstack_offset)
94545 + gap_end -= info->threadstack_offset;
94546 + else
94547 + gap_end = gap_start;
94548 +
94549 + if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
94550 + if (gap_end - gap_start > sysctl_heap_stack_gap)
94551 + gap_start += sysctl_heap_stack_gap;
94552 + else
94553 + gap_start = gap_end;
94554 + }
94555 + if (vma->vm_flags & VM_GROWSDOWN) {
94556 + if (gap_end - gap_start > sysctl_heap_stack_gap)
94557 + gap_end -= sysctl_heap_stack_gap;
94558 + else
94559 + gap_end = gap_start;
94560 + }
94561 if (gap_start <= high_limit && gap_end - gap_start >= length)
94562 goto found;
94563
94564 @@ -1874,6 +2134,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
94565 struct mm_struct *mm = current->mm;
94566 struct vm_area_struct *vma;
94567 struct vm_unmapped_area_info info;
94568 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
94569
94570 if (len > TASK_SIZE - mmap_min_addr)
94571 return -ENOMEM;
94572 @@ -1881,11 +2142,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
94573 if (flags & MAP_FIXED)
94574 return addr;
94575
94576 +#ifdef CONFIG_PAX_RANDMMAP
94577 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
94578 +#endif
94579 +
94580 if (addr) {
94581 addr = PAGE_ALIGN(addr);
94582 vma = find_vma(mm, addr);
94583 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
94584 - (!vma || addr + len <= vma->vm_start))
94585 + check_heap_stack_gap(vma, addr, len, offset))
94586 return addr;
94587 }
94588
94589 @@ -1894,6 +2159,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
94590 info.low_limit = mm->mmap_base;
94591 info.high_limit = TASK_SIZE;
94592 info.align_mask = 0;
94593 + info.threadstack_offset = offset;
94594 return vm_unmapped_area(&info);
94595 }
94596 #endif
94597 @@ -1912,6 +2178,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
94598 struct mm_struct *mm = current->mm;
94599 unsigned long addr = addr0;
94600 struct vm_unmapped_area_info info;
94601 + unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
94602
94603 /* requested length too big for entire address space */
94604 if (len > TASK_SIZE - mmap_min_addr)
94605 @@ -1920,12 +2187,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
94606 if (flags & MAP_FIXED)
94607 return addr;
94608
94609 +#ifdef CONFIG_PAX_RANDMMAP
94610 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
94611 +#endif
94612 +
94613 /* requesting a specific address */
94614 if (addr) {
94615 addr = PAGE_ALIGN(addr);
94616 vma = find_vma(mm, addr);
94617 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
94618 - (!vma || addr + len <= vma->vm_start))
94619 + check_heap_stack_gap(vma, addr, len, offset))
94620 return addr;
94621 }
94622
94623 @@ -1934,6 +2205,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
94624 info.low_limit = max(PAGE_SIZE, mmap_min_addr);
94625 info.high_limit = mm->mmap_base;
94626 info.align_mask = 0;
94627 + info.threadstack_offset = offset;
94628 addr = vm_unmapped_area(&info);
94629
94630 /*
94631 @@ -1946,6 +2218,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
94632 VM_BUG_ON(addr != -ENOMEM);
94633 info.flags = 0;
94634 info.low_limit = TASK_UNMAPPED_BASE;
94635 +
94636 +#ifdef CONFIG_PAX_RANDMMAP
94637 + if (mm->pax_flags & MF_PAX_RANDMMAP)
94638 + info.low_limit += mm->delta_mmap;
94639 +#endif
94640 +
94641 info.high_limit = TASK_SIZE;
94642 addr = vm_unmapped_area(&info);
94643 }
94644 @@ -2046,6 +2324,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
94645 return vma;
94646 }
94647
94648 +#ifdef CONFIG_PAX_SEGMEXEC
94649 +struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
94650 +{
94651 + struct vm_area_struct *vma_m;
94652 +
94653 + BUG_ON(!vma || vma->vm_start >= vma->vm_end);
94654 + if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
94655 + BUG_ON(vma->vm_mirror);
94656 + return NULL;
94657 + }
94658 + BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
94659 + vma_m = vma->vm_mirror;
94660 + BUG_ON(!vma_m || vma_m->vm_mirror != vma);
94661 + BUG_ON(vma->vm_file != vma_m->vm_file);
94662 + BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
94663 + BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
94664 + BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
94665 + BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
94666 + return vma_m;
94667 +}
94668 +#endif
94669 +
94670 /*
94671 * Verify that the stack growth is acceptable and
94672 * update accounting. This is shared with both the
94673 @@ -2062,6 +2362,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
94674 return -ENOMEM;
94675
94676 /* Stack limit test */
94677 + gr_learn_resource(current, RLIMIT_STACK, size, 1);
94678 if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
94679 return -ENOMEM;
94680
94681 @@ -2072,6 +2373,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
94682 locked = mm->locked_vm + grow;
94683 limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
94684 limit >>= PAGE_SHIFT;
94685 + gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
94686 if (locked > limit && !capable(CAP_IPC_LOCK))
94687 return -ENOMEM;
94688 }
94689 @@ -2101,37 +2403,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
94690 * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
94691 * vma is the last one with address > vma->vm_end. Have to extend vma.
94692 */
94693 +#ifndef CONFIG_IA64
94694 +static
94695 +#endif
94696 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
94697 {
94698 int error;
94699 + bool locknext;
94700
94701 if (!(vma->vm_flags & VM_GROWSUP))
94702 return -EFAULT;
94703
94704 + /* Also guard against wrapping around to address 0. */
94705 + if (address < PAGE_ALIGN(address+1))
94706 + address = PAGE_ALIGN(address+1);
94707 + else
94708 + return -ENOMEM;
94709 +
94710 /*
94711 * We must make sure the anon_vma is allocated
94712 * so that the anon_vma locking is not a noop.
94713 */
94714 if (unlikely(anon_vma_prepare(vma)))
94715 return -ENOMEM;
94716 + locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
94717 + if (locknext && anon_vma_prepare(vma->vm_next))
94718 + return -ENOMEM;
94719 vma_lock_anon_vma(vma);
94720 + if (locknext)
94721 + vma_lock_anon_vma(vma->vm_next);
94722
94723 /*
94724 * vma->vm_start/vm_end cannot change under us because the caller
94725 * is required to hold the mmap_sem in read mode. We need the
94726 - * anon_vma lock to serialize against concurrent expand_stacks.
94727 - * Also guard against wrapping around to address 0.
94728 + * anon_vma locks to serialize against concurrent expand_stacks
94729 + * and expand_upwards.
94730 */
94731 - if (address < PAGE_ALIGN(address+4))
94732 - address = PAGE_ALIGN(address+4);
94733 - else {
94734 - vma_unlock_anon_vma(vma);
94735 - return -ENOMEM;
94736 - }
94737 error = 0;
94738
94739 /* Somebody else might have raced and expanded it already */
94740 - if (address > vma->vm_end) {
94741 + if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap)
94742 + error = -ENOMEM;
94743 + else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
94744 unsigned long size, grow;
94745
94746 size = address - vma->vm_start;
94747 @@ -2166,6 +2479,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
94748 }
94749 }
94750 }
94751 + if (locknext)
94752 + vma_unlock_anon_vma(vma->vm_next);
94753 vma_unlock_anon_vma(vma);
94754 khugepaged_enter_vma_merge(vma);
94755 validate_mm(vma->vm_mm);
94756 @@ -2180,6 +2495,8 @@ int expand_downwards(struct vm_area_struct *vma,
94757 unsigned long address)
94758 {
94759 int error;
94760 + bool lockprev = false;
94761 + struct vm_area_struct *prev;
94762
94763 /*
94764 * We must make sure the anon_vma is allocated
94765 @@ -2193,6 +2510,15 @@ int expand_downwards(struct vm_area_struct *vma,
94766 if (error)
94767 return error;
94768
94769 + prev = vma->vm_prev;
94770 +#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
94771 + lockprev = prev && (prev->vm_flags & VM_GROWSUP);
94772 +#endif
94773 + if (lockprev && anon_vma_prepare(prev))
94774 + return -ENOMEM;
94775 + if (lockprev)
94776 + vma_lock_anon_vma(prev);
94777 +
94778 vma_lock_anon_vma(vma);
94779
94780 /*
94781 @@ -2202,9 +2528,17 @@ int expand_downwards(struct vm_area_struct *vma,
94782 */
94783
94784 /* Somebody else might have raced and expanded it already */
94785 - if (address < vma->vm_start) {
94786 + if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
94787 + error = -ENOMEM;
94788 + else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
94789 unsigned long size, grow;
94790
94791 +#ifdef CONFIG_PAX_SEGMEXEC
94792 + struct vm_area_struct *vma_m;
94793 +
94794 + vma_m = pax_find_mirror_vma(vma);
94795 +#endif
94796 +
94797 size = vma->vm_end - address;
94798 grow = (vma->vm_start - address) >> PAGE_SHIFT;
94799
94800 @@ -2229,13 +2563,27 @@ int expand_downwards(struct vm_area_struct *vma,
94801 vma->vm_pgoff -= grow;
94802 anon_vma_interval_tree_post_update_vma(vma);
94803 vma_gap_update(vma);
94804 +
94805 +#ifdef CONFIG_PAX_SEGMEXEC
94806 + if (vma_m) {
94807 + anon_vma_interval_tree_pre_update_vma(vma_m);
94808 + vma_m->vm_start -= grow << PAGE_SHIFT;
94809 + vma_m->vm_pgoff -= grow;
94810 + anon_vma_interval_tree_post_update_vma(vma_m);
94811 + vma_gap_update(vma_m);
94812 + }
94813 +#endif
94814 +
94815 spin_unlock(&vma->vm_mm->page_table_lock);
94816
94817 + track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
94818 perf_event_mmap(vma);
94819 }
94820 }
94821 }
94822 vma_unlock_anon_vma(vma);
94823 + if (lockprev)
94824 + vma_unlock_anon_vma(prev);
94825 khugepaged_enter_vma_merge(vma);
94826 validate_mm(vma->vm_mm);
94827 return error;
94828 @@ -2333,6 +2681,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
94829 do {
94830 long nrpages = vma_pages(vma);
94831
94832 +#ifdef CONFIG_PAX_SEGMEXEC
94833 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
94834 + vma = remove_vma(vma);
94835 + continue;
94836 + }
94837 +#endif
94838 +
94839 if (vma->vm_flags & VM_ACCOUNT)
94840 nr_accounted += nrpages;
94841 vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
94842 @@ -2377,6 +2732,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
94843 insertion_point = (prev ? &prev->vm_next : &mm->mmap);
94844 vma->vm_prev = NULL;
94845 do {
94846 +
94847 +#ifdef CONFIG_PAX_SEGMEXEC
94848 + if (vma->vm_mirror) {
94849 + BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
94850 + vma->vm_mirror->vm_mirror = NULL;
94851 + vma->vm_mirror->vm_flags &= ~VM_EXEC;
94852 + vma->vm_mirror = NULL;
94853 + }
94854 +#endif
94855 +
94856 vma_rb_erase(vma, &mm->mm_rb);
94857 mm->map_count--;
94858 tail_vma = vma;
94859 @@ -2404,14 +2769,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
94860 struct vm_area_struct *new;
94861 int err = -ENOMEM;
94862
94863 +#ifdef CONFIG_PAX_SEGMEXEC
94864 + struct vm_area_struct *vma_m, *new_m = NULL;
94865 + unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
94866 +#endif
94867 +
94868 if (is_vm_hugetlb_page(vma) && (addr &
94869 ~(huge_page_mask(hstate_vma(vma)))))
94870 return -EINVAL;
94871
94872 +#ifdef CONFIG_PAX_SEGMEXEC
94873 + vma_m = pax_find_mirror_vma(vma);
94874 +#endif
94875 +
94876 new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
94877 if (!new)
94878 goto out_err;
94879
94880 +#ifdef CONFIG_PAX_SEGMEXEC
94881 + if (vma_m) {
94882 + new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
94883 + if (!new_m) {
94884 + kmem_cache_free(vm_area_cachep, new);
94885 + goto out_err;
94886 + }
94887 + }
94888 +#endif
94889 +
94890 /* most fields are the same, copy all, and then fixup */
94891 *new = *vma;
94892
94893 @@ -2424,6 +2808,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
94894 new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
94895 }
94896
94897 +#ifdef CONFIG_PAX_SEGMEXEC
94898 + if (vma_m) {
94899 + *new_m = *vma_m;
94900 + INIT_LIST_HEAD(&new_m->anon_vma_chain);
94901 + new_m->vm_mirror = new;
94902 + new->vm_mirror = new_m;
94903 +
94904 + if (new_below)
94905 + new_m->vm_end = addr_m;
94906 + else {
94907 + new_m->vm_start = addr_m;
94908 + new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
94909 + }
94910 + }
94911 +#endif
94912 +
94913 err = vma_dup_policy(vma, new);
94914 if (err)
94915 goto out_free_vma;
94916 @@ -2443,6 +2843,38 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
94917 else
94918 err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
94919
94920 +#ifdef CONFIG_PAX_SEGMEXEC
94921 + if (!err && vma_m) {
94922 + struct mempolicy *pol = vma_policy(new);
94923 +
94924 + if (anon_vma_clone(new_m, vma_m))
94925 + goto out_free_mpol;
94926 +
94927 + mpol_get(pol);
94928 + set_vma_policy(new_m, pol);
94929 +
94930 + if (new_m->vm_file)
94931 + get_file(new_m->vm_file);
94932 +
94933 + if (new_m->vm_ops && new_m->vm_ops->open)
94934 + new_m->vm_ops->open(new_m);
94935 +
94936 + if (new_below)
94937 + err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
94938 + ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
94939 + else
94940 + err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
94941 +
94942 + if (err) {
94943 + if (new_m->vm_ops && new_m->vm_ops->close)
94944 + new_m->vm_ops->close(new_m);
94945 + if (new_m->vm_file)
94946 + fput(new_m->vm_file);
94947 + mpol_put(pol);
94948 + }
94949 + }
94950 +#endif
94951 +
94952 /* Success. */
94953 if (!err)
94954 return 0;
94955 @@ -2452,10 +2884,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
94956 new->vm_ops->close(new);
94957 if (new->vm_file)
94958 fput(new->vm_file);
94959 - unlink_anon_vmas(new);
94960 out_free_mpol:
94961 mpol_put(vma_policy(new));
94962 out_free_vma:
94963 +
94964 +#ifdef CONFIG_PAX_SEGMEXEC
94965 + if (new_m) {
94966 + unlink_anon_vmas(new_m);
94967 + kmem_cache_free(vm_area_cachep, new_m);
94968 + }
94969 +#endif
94970 +
94971 + unlink_anon_vmas(new);
94972 kmem_cache_free(vm_area_cachep, new);
94973 out_err:
94974 return err;
94975 @@ -2468,6 +2908,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
94976 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
94977 unsigned long addr, int new_below)
94978 {
94979 +
94980 +#ifdef CONFIG_PAX_SEGMEXEC
94981 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
94982 + BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
94983 + if (mm->map_count >= sysctl_max_map_count-1)
94984 + return -ENOMEM;
94985 + } else
94986 +#endif
94987 +
94988 if (mm->map_count >= sysctl_max_map_count)
94989 return -ENOMEM;
94990
94991 @@ -2479,11 +2928,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
94992 * work. This now handles partial unmappings.
94993 * Jeremy Fitzhardinge <jeremy@goop.org>
94994 */
94995 +#ifdef CONFIG_PAX_SEGMEXEC
94996 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
94997 {
94998 + int ret = __do_munmap(mm, start, len);
94999 + if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
95000 + return ret;
95001 +
95002 + return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
95003 +}
95004 +
95005 +int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
95006 +#else
95007 +int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
95008 +#endif
95009 +{
95010 unsigned long end;
95011 struct vm_area_struct *vma, *prev, *last;
95012
95013 + /*
95014 + * mm->mmap_sem is required to protect against another thread
95015 + * changing the mappings in case we sleep.
95016 + */
95017 + verify_mm_writelocked(mm);
95018 +
95019 if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
95020 return -EINVAL;
95021
95022 @@ -2558,6 +3026,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
95023 /* Fix up all other VM information */
95024 remove_vma_list(mm, vma);
95025
95026 + track_exec_limit(mm, start, end, 0UL);
95027 +
95028 return 0;
95029 }
95030
95031 @@ -2566,6 +3036,13 @@ int vm_munmap(unsigned long start, size_t len)
95032 int ret;
95033 struct mm_struct *mm = current->mm;
95034
95035 +
95036 +#ifdef CONFIG_PAX_SEGMEXEC
95037 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
95038 + (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
95039 + return -EINVAL;
95040 +#endif
95041 +
95042 down_write(&mm->mmap_sem);
95043 ret = do_munmap(mm, start, len);
95044 up_write(&mm->mmap_sem);
95045 @@ -2579,16 +3056,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len)
95046 return vm_munmap(addr, len);
95047 }
95048
95049 -static inline void verify_mm_writelocked(struct mm_struct *mm)
95050 -{
95051 -#ifdef CONFIG_DEBUG_VM
95052 - if (unlikely(down_read_trylock(&mm->mmap_sem))) {
95053 - WARN_ON(1);
95054 - up_read(&mm->mmap_sem);
95055 - }
95056 -#endif
95057 -}
95058 -
95059 /*
95060 * this is really a simplified "do_mmap". it only handles
95061 * anonymous maps. eventually we may be able to do some
95062 @@ -2602,6 +3069,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
95063 struct rb_node ** rb_link, * rb_parent;
95064 pgoff_t pgoff = addr >> PAGE_SHIFT;
95065 int error;
95066 + unsigned long charged;
95067
95068 len = PAGE_ALIGN(len);
95069 if (!len)
95070 @@ -2609,10 +3077,24 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
95071
95072 flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
95073
95074 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
95075 + if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
95076 + flags &= ~VM_EXEC;
95077 +
95078 +#ifdef CONFIG_PAX_MPROTECT
95079 + if (mm->pax_flags & MF_PAX_MPROTECT)
95080 + flags &= ~VM_MAYEXEC;
95081 +#endif
95082 +
95083 + }
95084 +#endif
95085 +
95086 error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
95087 if (error & ~PAGE_MASK)
95088 return error;
95089
95090 + charged = len >> PAGE_SHIFT;
95091 +
95092 error = mlock_future_check(mm, mm->def_flags, len);
95093 if (error)
95094 return error;
95095 @@ -2626,21 +3108,20 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
95096 /*
95097 * Clear old maps. this also does some error checking for us
95098 */
95099 - munmap_back:
95100 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
95101 if (do_munmap(mm, addr, len))
95102 return -ENOMEM;
95103 - goto munmap_back;
95104 + BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
95105 }
95106
95107 /* Check against address space limits *after* clearing old maps... */
95108 - if (!may_expand_vm(mm, len >> PAGE_SHIFT))
95109 + if (!may_expand_vm(mm, charged))
95110 return -ENOMEM;
95111
95112 if (mm->map_count > sysctl_max_map_count)
95113 return -ENOMEM;
95114
95115 - if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
95116 + if (security_vm_enough_memory_mm(mm, charged))
95117 return -ENOMEM;
95118
95119 /* Can we just expand an old private anonymous mapping? */
95120 @@ -2654,7 +3135,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
95121 */
95122 vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
95123 if (!vma) {
95124 - vm_unacct_memory(len >> PAGE_SHIFT);
95125 + vm_unacct_memory(charged);
95126 return -ENOMEM;
95127 }
95128
95129 @@ -2668,10 +3149,11 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
95130 vma_link(mm, vma, prev, rb_link, rb_parent);
95131 out:
95132 perf_event_mmap(vma);
95133 - mm->total_vm += len >> PAGE_SHIFT;
95134 + mm->total_vm += charged;
95135 if (flags & VM_LOCKED)
95136 - mm->locked_vm += (len >> PAGE_SHIFT);
95137 + mm->locked_vm += charged;
95138 vma->vm_flags |= VM_SOFTDIRTY;
95139 + track_exec_limit(mm, addr, addr + len, flags);
95140 return addr;
95141 }
95142
95143 @@ -2733,6 +3215,7 @@ void exit_mmap(struct mm_struct *mm)
95144 while (vma) {
95145 if (vma->vm_flags & VM_ACCOUNT)
95146 nr_accounted += vma_pages(vma);
95147 + vma->vm_mirror = NULL;
95148 vma = remove_vma(vma);
95149 }
95150 vm_unacct_memory(nr_accounted);
95151 @@ -2750,6 +3233,13 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
95152 struct vm_area_struct *prev;
95153 struct rb_node **rb_link, *rb_parent;
95154
95155 +#ifdef CONFIG_PAX_SEGMEXEC
95156 + struct vm_area_struct *vma_m = NULL;
95157 +#endif
95158 +
95159 + if (security_mmap_addr(vma->vm_start))
95160 + return -EPERM;
95161 +
95162 /*
95163 * The vm_pgoff of a purely anonymous vma should be irrelevant
95164 * until its first write fault, when page's anon_vma and index
95165 @@ -2773,7 +3263,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
95166 security_vm_enough_memory_mm(mm, vma_pages(vma)))
95167 return -ENOMEM;
95168
95169 +#ifdef CONFIG_PAX_SEGMEXEC
95170 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
95171 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
95172 + if (!vma_m)
95173 + return -ENOMEM;
95174 + }
95175 +#endif
95176 +
95177 vma_link(mm, vma, prev, rb_link, rb_parent);
95178 +
95179 +#ifdef CONFIG_PAX_SEGMEXEC
95180 + if (vma_m)
95181 + BUG_ON(pax_mirror_vma(vma_m, vma));
95182 +#endif
95183 +
95184 return 0;
95185 }
95186
95187 @@ -2792,6 +3296,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
95188 struct rb_node **rb_link, *rb_parent;
95189 bool faulted_in_anon_vma = true;
95190
95191 + BUG_ON(vma->vm_mirror);
95192 +
95193 /*
95194 * If anonymous vma has not yet been faulted, update new pgoff
95195 * to match new location, to increase its chance of merging.
95196 @@ -2856,6 +3362,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
95197 return NULL;
95198 }
95199
95200 +#ifdef CONFIG_PAX_SEGMEXEC
95201 +long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
95202 +{
95203 + struct vm_area_struct *prev_m;
95204 + struct rb_node **rb_link_m, *rb_parent_m;
95205 + struct mempolicy *pol_m;
95206 +
95207 + BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
95208 + BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
95209 + BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
95210 + *vma_m = *vma;
95211 + INIT_LIST_HEAD(&vma_m->anon_vma_chain);
95212 + if (anon_vma_clone(vma_m, vma))
95213 + return -ENOMEM;
95214 + pol_m = vma_policy(vma_m);
95215 + mpol_get(pol_m);
95216 + set_vma_policy(vma_m, pol_m);
95217 + vma_m->vm_start += SEGMEXEC_TASK_SIZE;
95218 + vma_m->vm_end += SEGMEXEC_TASK_SIZE;
95219 + vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
95220 + vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
95221 + if (vma_m->vm_file)
95222 + get_file(vma_m->vm_file);
95223 + if (vma_m->vm_ops && vma_m->vm_ops->open)
95224 + vma_m->vm_ops->open(vma_m);
95225 + BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
95226 + vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
95227 + vma_m->vm_mirror = vma;
95228 + vma->vm_mirror = vma_m;
95229 + return 0;
95230 +}
95231 +#endif
95232 +
95233 /*
95234 * Return true if the calling process may expand its vm space by the passed
95235 * number of pages
95236 @@ -2867,6 +3406,7 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
95237
95238 lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
95239
95240 + gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
95241 if (cur + npages > lim)
95242 return 0;
95243 return 1;
95244 @@ -2937,6 +3477,22 @@ struct vm_area_struct *_install_special_mapping(struct mm_struct *mm,
95245 vma->vm_start = addr;
95246 vma->vm_end = addr + len;
95247
95248 +#ifdef CONFIG_PAX_MPROTECT
95249 + if (mm->pax_flags & MF_PAX_MPROTECT) {
95250 +#ifndef CONFIG_PAX_MPROTECT_COMPAT
95251 + if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
95252 + return ERR_PTR(-EPERM);
95253 + if (!(vm_flags & VM_EXEC))
95254 + vm_flags &= ~VM_MAYEXEC;
95255 +#else
95256 + if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
95257 + vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
95258 +#endif
95259 + else
95260 + vm_flags &= ~VM_MAYWRITE;
95261 + }
95262 +#endif
95263 +
95264 vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY;
95265 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
95266
95267 diff --git a/mm/mprotect.c b/mm/mprotect.c
95268 index c43d557..0b7ccd2 100644
95269 --- a/mm/mprotect.c
95270 +++ b/mm/mprotect.c
95271 @@ -24,10 +24,18 @@
95272 #include <linux/migrate.h>
95273 #include <linux/perf_event.h>
95274 #include <linux/ksm.h>
95275 +#include <linux/sched/sysctl.h>
95276 +
95277 +#ifdef CONFIG_PAX_MPROTECT
95278 +#include <linux/elf.h>
95279 +#include <linux/binfmts.h>
95280 +#endif
95281 +
95282 #include <asm/uaccess.h>
95283 #include <asm/pgtable.h>
95284 #include <asm/cacheflush.h>
95285 #include <asm/tlbflush.h>
95286 +#include <asm/mmu_context.h>
95287
95288 #ifndef pgprot_modify
95289 static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
95290 @@ -256,6 +264,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
95291 return pages;
95292 }
95293
95294 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
95295 +/* called while holding the mmap semaphor for writing except stack expansion */
95296 +void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
95297 +{
95298 + unsigned long oldlimit, newlimit = 0UL;
95299 +
95300 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
95301 + return;
95302 +
95303 + spin_lock(&mm->page_table_lock);
95304 + oldlimit = mm->context.user_cs_limit;
95305 + if ((prot & VM_EXEC) && oldlimit < end)
95306 + /* USER_CS limit moved up */
95307 + newlimit = end;
95308 + else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
95309 + /* USER_CS limit moved down */
95310 + newlimit = start;
95311 +
95312 + if (newlimit) {
95313 + mm->context.user_cs_limit = newlimit;
95314 +
95315 +#ifdef CONFIG_SMP
95316 + wmb();
95317 + cpus_clear(mm->context.cpu_user_cs_mask);
95318 + cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
95319 +#endif
95320 +
95321 + set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
95322 + }
95323 + spin_unlock(&mm->page_table_lock);
95324 + if (newlimit == end) {
95325 + struct vm_area_struct *vma = find_vma(mm, oldlimit);
95326 +
95327 + for (; vma && vma->vm_start < end; vma = vma->vm_next)
95328 + if (is_vm_hugetlb_page(vma))
95329 + hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
95330 + else
95331 + change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
95332 + }
95333 +}
95334 +#endif
95335 +
95336 int
95337 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
95338 unsigned long start, unsigned long end, unsigned long newflags)
95339 @@ -268,11 +318,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
95340 int error;
95341 int dirty_accountable = 0;
95342
95343 +#ifdef CONFIG_PAX_SEGMEXEC
95344 + struct vm_area_struct *vma_m = NULL;
95345 + unsigned long start_m, end_m;
95346 +
95347 + start_m = start + SEGMEXEC_TASK_SIZE;
95348 + end_m = end + SEGMEXEC_TASK_SIZE;
95349 +#endif
95350 +
95351 if (newflags == oldflags) {
95352 *pprev = vma;
95353 return 0;
95354 }
95355
95356 + if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
95357 + struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
95358 +
95359 + if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
95360 + return -ENOMEM;
95361 +
95362 + if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
95363 + return -ENOMEM;
95364 + }
95365 +
95366 /*
95367 * If we make a private mapping writable we increase our commit;
95368 * but (without finer accounting) cannot reduce our commit if we
95369 @@ -289,6 +357,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
95370 }
95371 }
95372
95373 +#ifdef CONFIG_PAX_SEGMEXEC
95374 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
95375 + if (start != vma->vm_start) {
95376 + error = split_vma(mm, vma, start, 1);
95377 + if (error)
95378 + goto fail;
95379 + BUG_ON(!*pprev || (*pprev)->vm_next == vma);
95380 + *pprev = (*pprev)->vm_next;
95381 + }
95382 +
95383 + if (end != vma->vm_end) {
95384 + error = split_vma(mm, vma, end, 0);
95385 + if (error)
95386 + goto fail;
95387 + }
95388 +
95389 + if (pax_find_mirror_vma(vma)) {
95390 + error = __do_munmap(mm, start_m, end_m - start_m);
95391 + if (error)
95392 + goto fail;
95393 + } else {
95394 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
95395 + if (!vma_m) {
95396 + error = -ENOMEM;
95397 + goto fail;
95398 + }
95399 + vma->vm_flags = newflags;
95400 + error = pax_mirror_vma(vma_m, vma);
95401 + if (error) {
95402 + vma->vm_flags = oldflags;
95403 + goto fail;
95404 + }
95405 + }
95406 + }
95407 +#endif
95408 +
95409 /*
95410 * First try to merge with previous and/or next vma.
95411 */
95412 @@ -319,9 +423,21 @@ success:
95413 * vm_flags and vm_page_prot are protected by the mmap_sem
95414 * held in write mode.
95415 */
95416 +
95417 +#ifdef CONFIG_PAX_SEGMEXEC
95418 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
95419 + pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
95420 +#endif
95421 +
95422 vma->vm_flags = newflags;
95423 +
95424 +#ifdef CONFIG_PAX_MPROTECT
95425 + if (mm->binfmt && mm->binfmt->handle_mprotect)
95426 + mm->binfmt->handle_mprotect(vma, newflags);
95427 +#endif
95428 +
95429 vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
95430 - vm_get_page_prot(newflags));
95431 + vm_get_page_prot(vma->vm_flags));
95432
95433 if (vma_wants_writenotify(vma)) {
95434 vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
95435 @@ -360,6 +476,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
95436 end = start + len;
95437 if (end <= start)
95438 return -ENOMEM;
95439 +
95440 +#ifdef CONFIG_PAX_SEGMEXEC
95441 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
95442 + if (end > SEGMEXEC_TASK_SIZE)
95443 + return -EINVAL;
95444 + } else
95445 +#endif
95446 +
95447 + if (end > TASK_SIZE)
95448 + return -EINVAL;
95449 +
95450 if (!arch_validate_prot(prot))
95451 return -EINVAL;
95452
95453 @@ -367,7 +494,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
95454 /*
95455 * Does the application expect PROT_READ to imply PROT_EXEC:
95456 */
95457 - if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
95458 + if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
95459 prot |= PROT_EXEC;
95460
95461 vm_flags = calc_vm_prot_bits(prot);
95462 @@ -399,6 +526,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
95463 if (start > vma->vm_start)
95464 prev = vma;
95465
95466 +#ifdef CONFIG_PAX_MPROTECT
95467 + if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
95468 + current->mm->binfmt->handle_mprotect(vma, vm_flags);
95469 +#endif
95470 +
95471 for (nstart = start ; ; ) {
95472 unsigned long newflags;
95473
95474 @@ -409,6 +541,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
95475
95476 /* newflags >> 4 shift VM_MAY% in place of VM_% */
95477 if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
95478 + if (prot & (PROT_WRITE | PROT_EXEC))
95479 + gr_log_rwxmprotect(vma);
95480 +
95481 + error = -EACCES;
95482 + goto out;
95483 + }
95484 +
95485 + if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
95486 error = -EACCES;
95487 goto out;
95488 }
95489 @@ -423,6 +563,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
95490 error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
95491 if (error)
95492 goto out;
95493 +
95494 + track_exec_limit(current->mm, nstart, tmp, vm_flags);
95495 +
95496 nstart = tmp;
95497
95498 if (nstart < prev->vm_end)
95499 diff --git a/mm/mremap.c b/mm/mremap.c
95500 index 05f1180..c3cde48 100644
95501 --- a/mm/mremap.c
95502 +++ b/mm/mremap.c
95503 @@ -144,6 +144,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
95504 continue;
95505 pte = ptep_get_and_clear(mm, old_addr, old_pte);
95506 pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
95507 +
95508 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
95509 + if (!(__supported_pte_mask & _PAGE_NX) && pte_present(pte) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
95510 + pte = pte_exprotect(pte);
95511 +#endif
95512 +
95513 pte = move_soft_dirty_pte(pte);
95514 set_pte_at(mm, new_addr, new_pte, pte);
95515 }
95516 @@ -344,6 +350,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
95517 if (is_vm_hugetlb_page(vma))
95518 goto Einval;
95519
95520 +#ifdef CONFIG_PAX_SEGMEXEC
95521 + if (pax_find_mirror_vma(vma))
95522 + goto Einval;
95523 +#endif
95524 +
95525 /* We can't remap across vm area boundaries */
95526 if (old_len > vma->vm_end - addr)
95527 goto Efault;
95528 @@ -399,20 +410,25 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
95529 unsigned long ret = -EINVAL;
95530 unsigned long charged = 0;
95531 unsigned long map_flags;
95532 + unsigned long pax_task_size = TASK_SIZE;
95533
95534 if (new_addr & ~PAGE_MASK)
95535 goto out;
95536
95537 - if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
95538 +#ifdef CONFIG_PAX_SEGMEXEC
95539 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
95540 + pax_task_size = SEGMEXEC_TASK_SIZE;
95541 +#endif
95542 +
95543 + pax_task_size -= PAGE_SIZE;
95544 +
95545 + if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
95546 goto out;
95547
95548 /* Check if the location we're moving into overlaps the
95549 * old location at all, and fail if it does.
95550 */
95551 - if ((new_addr <= addr) && (new_addr+new_len) > addr)
95552 - goto out;
95553 -
95554 - if ((addr <= new_addr) && (addr+old_len) > new_addr)
95555 + if (addr + old_len > new_addr && new_addr + new_len > addr)
95556 goto out;
95557
95558 ret = do_munmap(mm, new_addr, new_len);
95559 @@ -481,6 +497,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
95560 unsigned long ret = -EINVAL;
95561 unsigned long charged = 0;
95562 bool locked = false;
95563 + unsigned long pax_task_size = TASK_SIZE;
95564
95565 if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
95566 return ret;
95567 @@ -502,6 +519,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
95568 if (!new_len)
95569 return ret;
95570
95571 +#ifdef CONFIG_PAX_SEGMEXEC
95572 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
95573 + pax_task_size = SEGMEXEC_TASK_SIZE;
95574 +#endif
95575 +
95576 + pax_task_size -= PAGE_SIZE;
95577 +
95578 + if (new_len > pax_task_size || addr > pax_task_size-new_len ||
95579 + old_len > pax_task_size || addr > pax_task_size-old_len)
95580 + return ret;
95581 +
95582 down_write(&current->mm->mmap_sem);
95583
95584 if (flags & MREMAP_FIXED) {
95585 @@ -552,6 +580,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
95586 new_addr = addr;
95587 }
95588 ret = addr;
95589 + track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
95590 goto out;
95591 }
95592 }
95593 @@ -575,7 +604,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
95594 goto out;
95595 }
95596
95597 + map_flags = vma->vm_flags;
95598 ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
95599 + if (!(ret & ~PAGE_MASK)) {
95600 + track_exec_limit(current->mm, addr, addr + old_len, 0UL);
95601 + track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
95602 + }
95603 }
95604 out:
95605 if (ret & ~PAGE_MASK)
95606 diff --git a/mm/nommu.c b/mm/nommu.c
95607 index 431fd7c..8674512 100644
95608 --- a/mm/nommu.c
95609 +++ b/mm/nommu.c
95610 @@ -67,7 +67,6 @@ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
95611 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
95612 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
95613 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
95614 -int heap_stack_gap = 0;
95615
95616 atomic_long_t mmap_pages_allocated;
95617
95618 @@ -854,15 +853,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
95619 EXPORT_SYMBOL(find_vma);
95620
95621 /*
95622 - * find a VMA
95623 - * - we don't extend stack VMAs under NOMMU conditions
95624 - */
95625 -struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
95626 -{
95627 - return find_vma(mm, addr);
95628 -}
95629 -
95630 -/*
95631 * expand a stack to a given address
95632 * - not supported under NOMMU conditions
95633 */
95634 @@ -1569,6 +1559,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
95635
95636 /* most fields are the same, copy all, and then fixup */
95637 *new = *vma;
95638 + INIT_LIST_HEAD(&new->anon_vma_chain);
95639 *region = *vma->vm_region;
95640 new->vm_region = region;
95641
95642 @@ -2004,8 +1995,8 @@ int generic_file_remap_pages(struct vm_area_struct *vma, unsigned long addr,
95643 }
95644 EXPORT_SYMBOL(generic_file_remap_pages);
95645
95646 -static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
95647 - unsigned long addr, void *buf, int len, int write)
95648 +static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
95649 + unsigned long addr, void *buf, size_t len, int write)
95650 {
95651 struct vm_area_struct *vma;
95652
95653 @@ -2046,8 +2037,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
95654 *
95655 * The caller must hold a reference on @mm.
95656 */
95657 -int access_remote_vm(struct mm_struct *mm, unsigned long addr,
95658 - void *buf, int len, int write)
95659 +ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
95660 + void *buf, size_t len, int write)
95661 {
95662 return __access_remote_vm(NULL, mm, addr, buf, len, write);
95663 }
95664 @@ -2056,7 +2047,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
95665 * Access another process' address space.
95666 * - source/target buffer must be kernel space
95667 */
95668 -int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
95669 +ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
95670 {
95671 struct mm_struct *mm;
95672
95673 diff --git a/mm/page-writeback.c b/mm/page-writeback.c
95674 index 154af21..86e447f 100644
95675 --- a/mm/page-writeback.c
95676 +++ b/mm/page-writeback.c
95677 @@ -685,7 +685,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
95678 * card's bdi_dirty may rush to many times higher than bdi_setpoint.
95679 * - the bdi dirty thresh drops quickly due to change of JBOD workload
95680 */
95681 -static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
95682 +static unsigned long __intentional_overflow(-1) bdi_position_ratio(struct backing_dev_info *bdi,
95683 unsigned long thresh,
95684 unsigned long bg_thresh,
95685 unsigned long dirty,
95686 diff --git a/mm/page_alloc.c b/mm/page_alloc.c
95687 index d64f5f9..9005ab5 100644
95688 --- a/mm/page_alloc.c
95689 +++ b/mm/page_alloc.c
95690 @@ -61,6 +61,7 @@
95691 #include <linux/page-debug-flags.h>
95692 #include <linux/hugetlb.h>
95693 #include <linux/sched/rt.h>
95694 +#include <linux/random.h>
95695
95696 #include <asm/sections.h>
95697 #include <asm/tlbflush.h>
95698 @@ -356,7 +357,7 @@ out:
95699 * This usage means that zero-order pages may not be compound.
95700 */
95701
95702 -static void free_compound_page(struct page *page)
95703 +void free_compound_page(struct page *page)
95704 {
95705 __free_pages_ok(page, compound_order(page));
95706 }
95707 @@ -730,6 +731,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
95708 int i;
95709 int bad = 0;
95710
95711 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
95712 + unsigned long index = 1UL << order;
95713 +#endif
95714 +
95715 trace_mm_page_free(page, order);
95716 kmemcheck_free_shadow(page, order);
95717
95718 @@ -746,6 +751,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
95719 debug_check_no_obj_freed(page_address(page),
95720 PAGE_SIZE << order);
95721 }
95722 +
95723 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
95724 + for (; index; --index)
95725 + sanitize_highpage(page + index - 1);
95726 +#endif
95727 +
95728 arch_free_page(page, order);
95729 kernel_map_pages(page, 1 << order, 0);
95730
95731 @@ -768,6 +779,20 @@ static void __free_pages_ok(struct page *page, unsigned int order)
95732 local_irq_restore(flags);
95733 }
95734
95735 +#ifdef CONFIG_PAX_LATENT_ENTROPY
95736 +bool __meminitdata extra_latent_entropy;
95737 +
95738 +static int __init setup_pax_extra_latent_entropy(char *str)
95739 +{
95740 + extra_latent_entropy = true;
95741 + return 0;
95742 +}
95743 +early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
95744 +
95745 +volatile u64 latent_entropy __latent_entropy;
95746 +EXPORT_SYMBOL(latent_entropy);
95747 +#endif
95748 +
95749 void __init __free_pages_bootmem(struct page *page, unsigned int order)
95750 {
95751 unsigned int nr_pages = 1 << order;
95752 @@ -783,6 +808,19 @@ void __init __free_pages_bootmem(struct page *page, unsigned int order)
95753 __ClearPageReserved(p);
95754 set_page_count(p, 0);
95755
95756 +#ifdef CONFIG_PAX_LATENT_ENTROPY
95757 + if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
95758 + u64 hash = 0;
95759 + size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
95760 + const u64 *data = lowmem_page_address(page);
95761 +
95762 + for (index = 0; index < end; index++)
95763 + hash ^= hash + data[index];
95764 + latent_entropy ^= hash;
95765 + add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
95766 + }
95767 +#endif
95768 +
95769 page_zone(page)->managed_pages += nr_pages;
95770 set_page_refcounted(page);
95771 __free_pages(page, order);
95772 @@ -911,8 +949,10 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
95773 arch_alloc_page(page, order);
95774 kernel_map_pages(page, 1 << order, 1);
95775
95776 +#ifndef CONFIG_PAX_MEMORY_SANITIZE
95777 if (gfp_flags & __GFP_ZERO)
95778 prep_zero_page(page, order, gfp_flags);
95779 +#endif
95780
95781 if (order && (gfp_flags & __GFP_COMP))
95782 prep_compound_page(page, order);
95783 @@ -2415,7 +2455,7 @@ static void reset_alloc_batches(struct zonelist *zonelist,
95784 continue;
95785 mod_zone_page_state(zone, NR_ALLOC_BATCH,
95786 high_wmark_pages(zone) - low_wmark_pages(zone) -
95787 - atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
95788 + atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
95789 }
95790 }
95791
95792 diff --git a/mm/page_io.c b/mm/page_io.c
95793 index 7c59ef6..1358905 100644
95794 --- a/mm/page_io.c
95795 +++ b/mm/page_io.c
95796 @@ -260,7 +260,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
95797 struct file *swap_file = sis->swap_file;
95798 struct address_space *mapping = swap_file->f_mapping;
95799 struct iovec iov = {
95800 - .iov_base = kmap(page),
95801 + .iov_base = (void __force_user *)kmap(page),
95802 .iov_len = PAGE_SIZE,
95803 };
95804
95805 diff --git a/mm/percpu.c b/mm/percpu.c
95806 index 2ddf9a9..f8fc075 100644
95807 --- a/mm/percpu.c
95808 +++ b/mm/percpu.c
95809 @@ -123,7 +123,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
95810 static unsigned int pcpu_high_unit_cpu __read_mostly;
95811
95812 /* the address of the first chunk which starts with the kernel static area */
95813 -void *pcpu_base_addr __read_mostly;
95814 +void *pcpu_base_addr __read_only;
95815 EXPORT_SYMBOL_GPL(pcpu_base_addr);
95816
95817 static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */
95818 diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
95819 index 8505c92..946bfc9 100644
95820 --- a/mm/process_vm_access.c
95821 +++ b/mm/process_vm_access.c
95822 @@ -13,6 +13,7 @@
95823 #include <linux/uio.h>
95824 #include <linux/sched.h>
95825 #include <linux/highmem.h>
95826 +#include <linux/security.h>
95827 #include <linux/ptrace.h>
95828 #include <linux/slab.h>
95829 #include <linux/syscalls.h>
95830 @@ -161,19 +162,19 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
95831 ssize_t iov_len;
95832 size_t total_len = iov_iter_count(iter);
95833
95834 + return -ENOSYS; // PaX: until properly audited
95835 +
95836 /*
95837 * Work out how many pages of struct pages we're going to need
95838 * when eventually calling get_user_pages
95839 */
95840 for (i = 0; i < riovcnt; i++) {
95841 iov_len = rvec[i].iov_len;
95842 - if (iov_len > 0) {
95843 - nr_pages_iov = ((unsigned long)rvec[i].iov_base
95844 - + iov_len)
95845 - / PAGE_SIZE - (unsigned long)rvec[i].iov_base
95846 - / PAGE_SIZE + 1;
95847 - nr_pages = max(nr_pages, nr_pages_iov);
95848 - }
95849 + if (iov_len <= 0)
95850 + continue;
95851 + nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
95852 + (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
95853 + nr_pages = max(nr_pages, nr_pages_iov);
95854 }
95855
95856 if (nr_pages == 0)
95857 @@ -201,6 +202,11 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
95858 goto free_proc_pages;
95859 }
95860
95861 + if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
95862 + rc = -EPERM;
95863 + goto put_task_struct;
95864 + }
95865 +
95866 mm = mm_access(task, PTRACE_MODE_ATTACH);
95867 if (!mm || IS_ERR(mm)) {
95868 rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
95869 diff --git a/mm/rmap.c b/mm/rmap.c
95870 index 14d1e28..3777962 100644
95871 --- a/mm/rmap.c
95872 +++ b/mm/rmap.c
95873 @@ -164,6 +164,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
95874 struct anon_vma *anon_vma = vma->anon_vma;
95875 struct anon_vma_chain *avc;
95876
95877 +#ifdef CONFIG_PAX_SEGMEXEC
95878 + struct anon_vma_chain *avc_m = NULL;
95879 +#endif
95880 +
95881 might_sleep();
95882 if (unlikely(!anon_vma)) {
95883 struct mm_struct *mm = vma->vm_mm;
95884 @@ -173,6 +177,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
95885 if (!avc)
95886 goto out_enomem;
95887
95888 +#ifdef CONFIG_PAX_SEGMEXEC
95889 + avc_m = anon_vma_chain_alloc(GFP_KERNEL);
95890 + if (!avc_m)
95891 + goto out_enomem_free_avc;
95892 +#endif
95893 +
95894 anon_vma = find_mergeable_anon_vma(vma);
95895 allocated = NULL;
95896 if (!anon_vma) {
95897 @@ -186,6 +196,18 @@ int anon_vma_prepare(struct vm_area_struct *vma)
95898 /* page_table_lock to protect against threads */
95899 spin_lock(&mm->page_table_lock);
95900 if (likely(!vma->anon_vma)) {
95901 +
95902 +#ifdef CONFIG_PAX_SEGMEXEC
95903 + struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
95904 +
95905 + if (vma_m) {
95906 + BUG_ON(vma_m->anon_vma);
95907 + vma_m->anon_vma = anon_vma;
95908 + anon_vma_chain_link(vma_m, avc_m, anon_vma);
95909 + avc_m = NULL;
95910 + }
95911 +#endif
95912 +
95913 vma->anon_vma = anon_vma;
95914 anon_vma_chain_link(vma, avc, anon_vma);
95915 allocated = NULL;
95916 @@ -196,12 +218,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
95917
95918 if (unlikely(allocated))
95919 put_anon_vma(allocated);
95920 +
95921 +#ifdef CONFIG_PAX_SEGMEXEC
95922 + if (unlikely(avc_m))
95923 + anon_vma_chain_free(avc_m);
95924 +#endif
95925 +
95926 if (unlikely(avc))
95927 anon_vma_chain_free(avc);
95928 }
95929 return 0;
95930
95931 out_enomem_free_avc:
95932 +
95933 +#ifdef CONFIG_PAX_SEGMEXEC
95934 + if (avc_m)
95935 + anon_vma_chain_free(avc_m);
95936 +#endif
95937 +
95938 anon_vma_chain_free(avc);
95939 out_enomem:
95940 return -ENOMEM;
95941 @@ -237,7 +271,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
95942 * Attach the anon_vmas from src to dst.
95943 * Returns 0 on success, -ENOMEM on failure.
95944 */
95945 -int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
95946 +int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
95947 {
95948 struct anon_vma_chain *avc, *pavc;
95949 struct anon_vma *root = NULL;
95950 @@ -270,7 +304,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
95951 * the corresponding VMA in the parent process is attached to.
95952 * Returns 0 on success, non-zero on failure.
95953 */
95954 -int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
95955 +int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
95956 {
95957 struct anon_vma_chain *avc;
95958 struct anon_vma *anon_vma;
95959 @@ -374,8 +408,10 @@ static void anon_vma_ctor(void *data)
95960 void __init anon_vma_init(void)
95961 {
95962 anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
95963 - 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor);
95964 - anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain, SLAB_PANIC);
95965 + 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_NO_SANITIZE,
95966 + anon_vma_ctor);
95967 + anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain,
95968 + SLAB_PANIC|SLAB_NO_SANITIZE);
95969 }
95970
95971 /*
95972 diff --git a/mm/shmem.c b/mm/shmem.c
95973 index a2801ba..b8651e6 100644
95974 --- a/mm/shmem.c
95975 +++ b/mm/shmem.c
95976 @@ -33,7 +33,7 @@
95977 #include <linux/swap.h>
95978 #include <linux/aio.h>
95979
95980 -static struct vfsmount *shm_mnt;
95981 +struct vfsmount *shm_mnt;
95982
95983 #ifdef CONFIG_SHMEM
95984 /*
95985 @@ -77,14 +77,15 @@ static struct vfsmount *shm_mnt;
95986 #define BOGO_DIRENT_SIZE 20
95987
95988 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
95989 -#define SHORT_SYMLINK_LEN 128
95990 +#define SHORT_SYMLINK_LEN 64
95991
95992 /*
95993 - * shmem_fallocate and shmem_writepage communicate via inode->i_private
95994 - * (with i_mutex making sure that it has only one user at a time):
95995 - * we would prefer not to enlarge the shmem inode just for that.
95996 + * shmem_fallocate communicates with shmem_fault or shmem_writepage via
95997 + * inode->i_private (with i_mutex making sure that it has only one user at
95998 + * a time): we would prefer not to enlarge the shmem inode just for that.
95999 */
96000 struct shmem_falloc {
96001 + int mode; /* FALLOC_FL mode currently operating */
96002 pgoff_t start; /* start of range currently being fallocated */
96003 pgoff_t next; /* the next page offset to be fallocated */
96004 pgoff_t nr_falloced; /* how many new pages have been fallocated */
96005 @@ -759,6 +760,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
96006 spin_lock(&inode->i_lock);
96007 shmem_falloc = inode->i_private;
96008 if (shmem_falloc &&
96009 + !shmem_falloc->mode &&
96010 index >= shmem_falloc->start &&
96011 index < shmem_falloc->next)
96012 shmem_falloc->nr_unswapped++;
96013 @@ -1233,6 +1235,43 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
96014 int error;
96015 int ret = VM_FAULT_LOCKED;
96016
96017 + /*
96018 + * Trinity finds that probing a hole which tmpfs is punching can
96019 + * prevent the hole-punch from ever completing: which in turn
96020 + * locks writers out with its hold on i_mutex. So refrain from
96021 + * faulting pages into the hole while it's being punched, and
96022 + * wait on i_mutex to be released if vmf->flags permits,
96023 + */
96024 + if (unlikely(inode->i_private)) {
96025 + struct shmem_falloc *shmem_falloc;
96026 + spin_lock(&inode->i_lock);
96027 + shmem_falloc = inode->i_private;
96028 + if (!shmem_falloc ||
96029 + shmem_falloc->mode != FALLOC_FL_PUNCH_HOLE ||
96030 + vmf->pgoff < shmem_falloc->start ||
96031 + vmf->pgoff >= shmem_falloc->next)
96032 + shmem_falloc = NULL;
96033 + spin_unlock(&inode->i_lock);
96034 + /*
96035 + * i_lock has protected us from taking shmem_falloc seriously
96036 + * once return from shmem_fallocate() went back up that stack.
96037 + * i_lock does not serialize with i_mutex at all, but it does
96038 + * not matter if sometimes we wait unnecessarily, or sometimes
96039 + * miss out on waiting: we just need to make those cases rare.
96040 + */
96041 + if (shmem_falloc) {
96042 + if ((vmf->flags & FAULT_FLAG_ALLOW_RETRY) &&
96043 + !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
96044 + up_read(&vma->vm_mm->mmap_sem);
96045 + mutex_lock(&inode->i_mutex);
96046 + mutex_unlock(&inode->i_mutex);
96047 + return VM_FAULT_RETRY;
96048 + }
96049 + /* cond_resched? Leave that to GUP or return to user */
96050 + return VM_FAULT_NOPAGE;
96051 + }
96052 + }
96053 +
96054 error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_CACHE, &ret);
96055 if (error)
96056 return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS);
96057 @@ -1733,18 +1772,26 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
96058
96059 mutex_lock(&inode->i_mutex);
96060
96061 + shmem_falloc.mode = mode & ~FALLOC_FL_KEEP_SIZE;
96062 +
96063 if (mode & FALLOC_FL_PUNCH_HOLE) {
96064 struct address_space *mapping = file->f_mapping;
96065 loff_t unmap_start = round_up(offset, PAGE_SIZE);
96066 loff_t unmap_end = round_down(offset + len, PAGE_SIZE) - 1;
96067
96068 + shmem_falloc.start = unmap_start >> PAGE_SHIFT;
96069 + shmem_falloc.next = (unmap_end + 1) >> PAGE_SHIFT;
96070 + spin_lock(&inode->i_lock);
96071 + inode->i_private = &shmem_falloc;
96072 + spin_unlock(&inode->i_lock);
96073 +
96074 if ((u64)unmap_end > (u64)unmap_start)
96075 unmap_mapping_range(mapping, unmap_start,
96076 1 + unmap_end - unmap_start, 0);
96077 shmem_truncate_range(inode, offset, offset + len - 1);
96078 /* No need to unmap again: hole-punching leaves COWed pages */
96079 error = 0;
96080 - goto out;
96081 + goto undone;
96082 }
96083
96084 /* We need to check rlimit even when FALLOC_FL_KEEP_SIZE */
96085 @@ -2138,6 +2185,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
96086 static int shmem_xattr_validate(const char *name)
96087 {
96088 struct { const char *prefix; size_t len; } arr[] = {
96089 +
96090 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
96091 + { XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN},
96092 +#endif
96093 +
96094 { XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN },
96095 { XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN }
96096 };
96097 @@ -2193,6 +2245,15 @@ static int shmem_setxattr(struct dentry *dentry, const char *name,
96098 if (err)
96099 return err;
96100
96101 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
96102 + if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
96103 + if (strcmp(name, XATTR_NAME_PAX_FLAGS))
96104 + return -EOPNOTSUPP;
96105 + if (size > 8)
96106 + return -EINVAL;
96107 + }
96108 +#endif
96109 +
96110 return simple_xattr_set(&info->xattrs, name, value, size, flags);
96111 }
96112
96113 @@ -2505,8 +2566,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
96114 int err = -ENOMEM;
96115
96116 /* Round up to L1_CACHE_BYTES to resist false sharing */
96117 - sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
96118 - L1_CACHE_BYTES), GFP_KERNEL);
96119 + sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
96120 if (!sbinfo)
96121 return -ENOMEM;
96122
96123 diff --git a/mm/slab.c b/mm/slab.c
96124 index 9432556..e0dc685 100644
96125 --- a/mm/slab.c
96126 +++ b/mm/slab.c
96127 @@ -311,10 +311,12 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
96128 if ((x)->max_freeable < i) \
96129 (x)->max_freeable = i; \
96130 } while (0)
96131 -#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit)
96132 -#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss)
96133 -#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit)
96134 -#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss)
96135 +#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit)
96136 +#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss)
96137 +#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit)
96138 +#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss)
96139 +#define STATS_INC_SANITIZED(x) atomic_inc_unchecked(&(x)->sanitized)
96140 +#define STATS_INC_NOT_SANITIZED(x) atomic_inc_unchecked(&(x)->not_sanitized)
96141 #else
96142 #define STATS_INC_ACTIVE(x) do { } while (0)
96143 #define STATS_DEC_ACTIVE(x) do { } while (0)
96144 @@ -331,6 +333,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
96145 #define STATS_INC_ALLOCMISS(x) do { } while (0)
96146 #define STATS_INC_FREEHIT(x) do { } while (0)
96147 #define STATS_INC_FREEMISS(x) do { } while (0)
96148 +#define STATS_INC_SANITIZED(x) do { } while (0)
96149 +#define STATS_INC_NOT_SANITIZED(x) do { } while (0)
96150 #endif
96151
96152 #if DEBUG
96153 @@ -447,7 +451,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
96154 * reciprocal_divide(offset, cache->reciprocal_buffer_size)
96155 */
96156 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
96157 - const struct page *page, void *obj)
96158 + const struct page *page, const void *obj)
96159 {
96160 u32 offset = (obj - page->s_mem);
96161 return reciprocal_divide(offset, cache->reciprocal_buffer_size);
96162 @@ -1558,12 +1562,12 @@ void __init kmem_cache_init(void)
96163 */
96164
96165 kmalloc_caches[INDEX_AC] = create_kmalloc_cache("kmalloc-ac",
96166 - kmalloc_size(INDEX_AC), ARCH_KMALLOC_FLAGS);
96167 + kmalloc_size(INDEX_AC), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
96168
96169 if (INDEX_AC != INDEX_NODE)
96170 kmalloc_caches[INDEX_NODE] =
96171 create_kmalloc_cache("kmalloc-node",
96172 - kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS);
96173 + kmalloc_size(INDEX_NODE), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
96174
96175 slab_early_init = 0;
96176
96177 @@ -3525,6 +3529,21 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
96178 struct array_cache *ac = cpu_cache_get(cachep);
96179
96180 check_irq_off();
96181 +
96182 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96183 + if (pax_sanitize_slab) {
96184 + if (!(cachep->flags & (SLAB_POISON | SLAB_NO_SANITIZE))) {
96185 + memset(objp, PAX_MEMORY_SANITIZE_VALUE, cachep->object_size);
96186 +
96187 + if (cachep->ctor)
96188 + cachep->ctor(objp);
96189 +
96190 + STATS_INC_SANITIZED(cachep);
96191 + } else
96192 + STATS_INC_NOT_SANITIZED(cachep);
96193 + }
96194 +#endif
96195 +
96196 kmemleak_free_recursive(objp, cachep->flags);
96197 objp = cache_free_debugcheck(cachep, objp, caller);
96198
96199 @@ -3748,6 +3767,7 @@ void kfree(const void *objp)
96200
96201 if (unlikely(ZERO_OR_NULL_PTR(objp)))
96202 return;
96203 + VM_BUG_ON(!virt_addr_valid(objp));
96204 local_irq_save(flags);
96205 kfree_debugcheck(objp);
96206 c = virt_to_cache(objp);
96207 @@ -4189,14 +4209,22 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
96208 }
96209 /* cpu stats */
96210 {
96211 - unsigned long allochit = atomic_read(&cachep->allochit);
96212 - unsigned long allocmiss = atomic_read(&cachep->allocmiss);
96213 - unsigned long freehit = atomic_read(&cachep->freehit);
96214 - unsigned long freemiss = atomic_read(&cachep->freemiss);
96215 + unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
96216 + unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
96217 + unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
96218 + unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
96219
96220 seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
96221 allochit, allocmiss, freehit, freemiss);
96222 }
96223 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96224 + {
96225 + unsigned long sanitized = atomic_read_unchecked(&cachep->sanitized);
96226 + unsigned long not_sanitized = atomic_read_unchecked(&cachep->not_sanitized);
96227 +
96228 + seq_printf(m, " : pax %6lu %6lu", sanitized, not_sanitized);
96229 + }
96230 +#endif
96231 #endif
96232 }
96233
96234 @@ -4417,13 +4445,69 @@ static const struct file_operations proc_slabstats_operations = {
96235 static int __init slab_proc_init(void)
96236 {
96237 #ifdef CONFIG_DEBUG_SLAB_LEAK
96238 - proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
96239 + proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
96240 #endif
96241 return 0;
96242 }
96243 module_init(slab_proc_init);
96244 #endif
96245
96246 +bool is_usercopy_object(const void *ptr)
96247 +{
96248 + struct page *page;
96249 + struct kmem_cache *cachep;
96250 +
96251 + if (ZERO_OR_NULL_PTR(ptr))
96252 + return false;
96253 +
96254 + if (!slab_is_available())
96255 + return false;
96256 +
96257 + if (!virt_addr_valid(ptr))
96258 + return false;
96259 +
96260 + page = virt_to_head_page(ptr);
96261 +
96262 + if (!PageSlab(page))
96263 + return false;
96264 +
96265 + cachep = page->slab_cache;
96266 + return cachep->flags & SLAB_USERCOPY;
96267 +}
96268 +
96269 +#ifdef CONFIG_PAX_USERCOPY
96270 +const char *check_heap_object(const void *ptr, unsigned long n)
96271 +{
96272 + struct page *page;
96273 + struct kmem_cache *cachep;
96274 + unsigned int objnr;
96275 + unsigned long offset;
96276 +
96277 + if (ZERO_OR_NULL_PTR(ptr))
96278 + return "<null>";
96279 +
96280 + if (!virt_addr_valid(ptr))
96281 + return NULL;
96282 +
96283 + page = virt_to_head_page(ptr);
96284 +
96285 + if (!PageSlab(page))
96286 + return NULL;
96287 +
96288 + cachep = page->slab_cache;
96289 + if (!(cachep->flags & SLAB_USERCOPY))
96290 + return cachep->name;
96291 +
96292 + objnr = obj_to_index(cachep, page, ptr);
96293 + BUG_ON(objnr >= cachep->num);
96294 + offset = ptr - index_to_obj(cachep, page, objnr) - obj_offset(cachep);
96295 + if (offset <= cachep->object_size && n <= cachep->object_size - offset)
96296 + return NULL;
96297 +
96298 + return cachep->name;
96299 +}
96300 +#endif
96301 +
96302 /**
96303 * ksize - get the actual amount of memory allocated for a given object
96304 * @objp: Pointer to the object
96305 diff --git a/mm/slab.h b/mm/slab.h
96306 index 6bd4c35..97565a1 100644
96307 --- a/mm/slab.h
96308 +++ b/mm/slab.h
96309 @@ -32,6 +32,15 @@ extern struct list_head slab_caches;
96310 /* The slab cache that manages slab cache information */
96311 extern struct kmem_cache *kmem_cache;
96312
96313 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96314 +#ifdef CONFIG_X86_64
96315 +#define PAX_MEMORY_SANITIZE_VALUE '\xfe'
96316 +#else
96317 +#define PAX_MEMORY_SANITIZE_VALUE '\xff'
96318 +#endif
96319 +extern bool pax_sanitize_slab;
96320 +#endif
96321 +
96322 unsigned long calculate_alignment(unsigned long flags,
96323 unsigned long align, unsigned long size);
96324
96325 @@ -67,7 +76,8 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
96326
96327 /* Legal flag mask for kmem_cache_create(), for various configurations */
96328 #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
96329 - SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
96330 + SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | \
96331 + SLAB_USERCOPY | SLAB_NO_SANITIZE)
96332
96333 #if defined(CONFIG_DEBUG_SLAB)
96334 #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
96335 @@ -245,6 +255,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
96336 return s;
96337
96338 page = virt_to_head_page(x);
96339 +
96340 + BUG_ON(!PageSlab(page));
96341 +
96342 cachep = page->slab_cache;
96343 if (slab_equal_or_root(cachep, s))
96344 return cachep;
96345 diff --git a/mm/slab_common.c b/mm/slab_common.c
96346 index 102cc6f..c7aab3d 100644
96347 --- a/mm/slab_common.c
96348 +++ b/mm/slab_common.c
96349 @@ -23,11 +23,22 @@
96350
96351 #include "slab.h"
96352
96353 -enum slab_state slab_state;
96354 +enum slab_state slab_state __read_only;
96355 LIST_HEAD(slab_caches);
96356 DEFINE_MUTEX(slab_mutex);
96357 struct kmem_cache *kmem_cache;
96358
96359 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96360 +bool pax_sanitize_slab __read_only = true;
96361 +static int __init pax_sanitize_slab_setup(char *str)
96362 +{
96363 + pax_sanitize_slab = !!simple_strtol(str, NULL, 0);
96364 + printk("%sabled PaX slab sanitization\n", pax_sanitize_slab ? "En" : "Dis");
96365 + return 1;
96366 +}
96367 +__setup("pax_sanitize_slab=", pax_sanitize_slab_setup);
96368 +#endif
96369 +
96370 #ifdef CONFIG_DEBUG_VM
96371 static int kmem_cache_sanity_check(const char *name, size_t size)
96372 {
96373 @@ -158,7 +169,7 @@ do_kmem_cache_create(char *name, size_t object_size, size_t size, size_t align,
96374 if (err)
96375 goto out_free_cache;
96376
96377 - s->refcount = 1;
96378 + atomic_set(&s->refcount, 1);
96379 list_add(&s->list, &slab_caches);
96380 memcg_register_cache(s);
96381 out:
96382 @@ -334,8 +345,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
96383 get_online_cpus();
96384 mutex_lock(&slab_mutex);
96385
96386 - s->refcount--;
96387 - if (s->refcount)
96388 + if (!atomic_dec_and_test(&s->refcount))
96389 goto out_unlock;
96390
96391 if (kmem_cache_destroy_memcg_children(s) != 0)
96392 @@ -358,7 +368,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
96393 rcu_barrier();
96394
96395 memcg_free_cache_params(s);
96396 -#ifdef SLAB_SUPPORTS_SYSFS
96397 +#if defined(SLAB_SUPPORTS_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
96398 sysfs_slab_remove(s);
96399 #else
96400 slab_kmem_cache_release(s);
96401 @@ -393,7 +403,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
96402 panic("Creation of kmalloc slab %s size=%zu failed. Reason %d\n",
96403 name, size, err);
96404
96405 - s->refcount = -1; /* Exempt from merging for now */
96406 + atomic_set(&s->refcount, -1); /* Exempt from merging for now */
96407 }
96408
96409 struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
96410 @@ -406,7 +416,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
96411
96412 create_boot_cache(s, name, size, flags);
96413 list_add(&s->list, &slab_caches);
96414 - s->refcount = 1;
96415 + atomic_set(&s->refcount, 1);
96416 return s;
96417 }
96418
96419 @@ -418,6 +428,11 @@ struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
96420 EXPORT_SYMBOL(kmalloc_dma_caches);
96421 #endif
96422
96423 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96424 +struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
96425 +EXPORT_SYMBOL(kmalloc_usercopy_caches);
96426 +#endif
96427 +
96428 /*
96429 * Conversion table for small slabs sizes / 8 to the index in the
96430 * kmalloc array. This is necessary for slabs < 192 since we have non power
96431 @@ -482,6 +497,13 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
96432 return kmalloc_dma_caches[index];
96433
96434 #endif
96435 +
96436 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96437 + if (unlikely((flags & GFP_USERCOPY)))
96438 + return kmalloc_usercopy_caches[index];
96439 +
96440 +#endif
96441 +
96442 return kmalloc_caches[index];
96443 }
96444
96445 @@ -538,7 +560,7 @@ void __init create_kmalloc_caches(unsigned long flags)
96446 for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
96447 if (!kmalloc_caches[i]) {
96448 kmalloc_caches[i] = create_kmalloc_cache(NULL,
96449 - 1 << i, flags);
96450 + 1 << i, SLAB_USERCOPY | flags);
96451 }
96452
96453 /*
96454 @@ -547,10 +569,10 @@ void __init create_kmalloc_caches(unsigned long flags)
96455 * earlier power of two caches
96456 */
96457 if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
96458 - kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, flags);
96459 + kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, SLAB_USERCOPY | flags);
96460
96461 if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
96462 - kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, flags);
96463 + kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, SLAB_USERCOPY | flags);
96464 }
96465
96466 /* Kmalloc array is now usable */
96467 @@ -583,6 +605,23 @@ void __init create_kmalloc_caches(unsigned long flags)
96468 }
96469 }
96470 #endif
96471 +
96472 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96473 + for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
96474 + struct kmem_cache *s = kmalloc_caches[i];
96475 +
96476 + if (s) {
96477 + int size = kmalloc_size(i);
96478 + char *n = kasprintf(GFP_NOWAIT,
96479 + "usercopy-kmalloc-%d", size);
96480 +
96481 + BUG_ON(!n);
96482 + kmalloc_usercopy_caches[i] = create_kmalloc_cache(n,
96483 + size, SLAB_USERCOPY | flags);
96484 + }
96485 + }
96486 +#endif
96487 +
96488 }
96489 #endif /* !CONFIG_SLOB */
96490
96491 @@ -623,6 +662,9 @@ void print_slabinfo_header(struct seq_file *m)
96492 seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
96493 "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
96494 seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
96495 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96496 + seq_puts(m, " : pax <sanitized> <not_sanitized>");
96497 +#endif
96498 #endif
96499 seq_putc(m, '\n');
96500 }
96501 diff --git a/mm/slob.c b/mm/slob.c
96502 index 730cad4..8cfd442 100644
96503 --- a/mm/slob.c
96504 +++ b/mm/slob.c
96505 @@ -157,7 +157,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
96506 /*
96507 * Return the size of a slob block.
96508 */
96509 -static slobidx_t slob_units(slob_t *s)
96510 +static slobidx_t slob_units(const slob_t *s)
96511 {
96512 if (s->units > 0)
96513 return s->units;
96514 @@ -167,7 +167,7 @@ static slobidx_t slob_units(slob_t *s)
96515 /*
96516 * Return the next free slob block pointer after this one.
96517 */
96518 -static slob_t *slob_next(slob_t *s)
96519 +static slob_t *slob_next(const slob_t *s)
96520 {
96521 slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
96522 slobidx_t next;
96523 @@ -182,14 +182,14 @@ static slob_t *slob_next(slob_t *s)
96524 /*
96525 * Returns true if s is the last free block in its page.
96526 */
96527 -static int slob_last(slob_t *s)
96528 +static int slob_last(const slob_t *s)
96529 {
96530 return !((unsigned long)slob_next(s) & ~PAGE_MASK);
96531 }
96532
96533 -static void *slob_new_pages(gfp_t gfp, int order, int node)
96534 +static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
96535 {
96536 - void *page;
96537 + struct page *page;
96538
96539 #ifdef CONFIG_NUMA
96540 if (node != NUMA_NO_NODE)
96541 @@ -201,14 +201,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
96542 if (!page)
96543 return NULL;
96544
96545 - return page_address(page);
96546 + __SetPageSlab(page);
96547 + return page;
96548 }
96549
96550 -static void slob_free_pages(void *b, int order)
96551 +static void slob_free_pages(struct page *sp, int order)
96552 {
96553 if (current->reclaim_state)
96554 current->reclaim_state->reclaimed_slab += 1 << order;
96555 - free_pages((unsigned long)b, order);
96556 + __ClearPageSlab(sp);
96557 + page_mapcount_reset(sp);
96558 + sp->private = 0;
96559 + __free_pages(sp, order);
96560 }
96561
96562 /*
96563 @@ -313,15 +317,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
96564
96565 /* Not enough space: must allocate a new page */
96566 if (!b) {
96567 - b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
96568 - if (!b)
96569 + sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
96570 + if (!sp)
96571 return NULL;
96572 - sp = virt_to_page(b);
96573 - __SetPageSlab(sp);
96574 + b = page_address(sp);
96575
96576 spin_lock_irqsave(&slob_lock, flags);
96577 sp->units = SLOB_UNITS(PAGE_SIZE);
96578 sp->freelist = b;
96579 + sp->private = 0;
96580 INIT_LIST_HEAD(&sp->lru);
96581 set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
96582 set_slob_page_free(sp, slob_list);
96583 @@ -359,12 +363,15 @@ static void slob_free(void *block, int size)
96584 if (slob_page_free(sp))
96585 clear_slob_page_free(sp);
96586 spin_unlock_irqrestore(&slob_lock, flags);
96587 - __ClearPageSlab(sp);
96588 - page_mapcount_reset(sp);
96589 - slob_free_pages(b, 0);
96590 + slob_free_pages(sp, 0);
96591 return;
96592 }
96593
96594 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96595 + if (pax_sanitize_slab)
96596 + memset(block, PAX_MEMORY_SANITIZE_VALUE, size);
96597 +#endif
96598 +
96599 if (!slob_page_free(sp)) {
96600 /* This slob page is about to become partially free. Easy! */
96601 sp->units = units;
96602 @@ -424,11 +431,10 @@ out:
96603 */
96604
96605 static __always_inline void *
96606 -__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
96607 +__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
96608 {
96609 - unsigned int *m;
96610 - int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
96611 - void *ret;
96612 + slob_t *m;
96613 + void *ret = NULL;
96614
96615 gfp &= gfp_allowed_mask;
96616
96617 @@ -442,23 +448,41 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
96618
96619 if (!m)
96620 return NULL;
96621 - *m = size;
96622 + BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
96623 + BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
96624 + m[0].units = size;
96625 + m[1].units = align;
96626 ret = (void *)m + align;
96627
96628 trace_kmalloc_node(caller, ret,
96629 size, size + align, gfp, node);
96630 } else {
96631 unsigned int order = get_order(size);
96632 + struct page *page;
96633
96634 if (likely(order))
96635 gfp |= __GFP_COMP;
96636 - ret = slob_new_pages(gfp, order, node);
96637 + page = slob_new_pages(gfp, order, node);
96638 + if (page) {
96639 + ret = page_address(page);
96640 + page->private = size;
96641 + }
96642
96643 trace_kmalloc_node(caller, ret,
96644 size, PAGE_SIZE << order, gfp, node);
96645 }
96646
96647 - kmemleak_alloc(ret, size, 1, gfp);
96648 + return ret;
96649 +}
96650 +
96651 +static __always_inline void *
96652 +__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
96653 +{
96654 + int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
96655 + void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
96656 +
96657 + if (!ZERO_OR_NULL_PTR(ret))
96658 + kmemleak_alloc(ret, size, 1, gfp);
96659 return ret;
96660 }
96661
96662 @@ -493,34 +517,112 @@ void kfree(const void *block)
96663 return;
96664 kmemleak_free(block);
96665
96666 + VM_BUG_ON(!virt_addr_valid(block));
96667 sp = virt_to_page(block);
96668 - if (PageSlab(sp)) {
96669 + VM_BUG_ON(!PageSlab(sp));
96670 + if (!sp->private) {
96671 int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
96672 - unsigned int *m = (unsigned int *)(block - align);
96673 - slob_free(m, *m + align);
96674 - } else
96675 + slob_t *m = (slob_t *)(block - align);
96676 + slob_free(m, m[0].units + align);
96677 + } else {
96678 + __ClearPageSlab(sp);
96679 + page_mapcount_reset(sp);
96680 + sp->private = 0;
96681 __free_pages(sp, compound_order(sp));
96682 + }
96683 }
96684 EXPORT_SYMBOL(kfree);
96685
96686 +bool is_usercopy_object(const void *ptr)
96687 +{
96688 + if (!slab_is_available())
96689 + return false;
96690 +
96691 + // PAX: TODO
96692 +
96693 + return false;
96694 +}
96695 +
96696 +#ifdef CONFIG_PAX_USERCOPY
96697 +const char *check_heap_object(const void *ptr, unsigned long n)
96698 +{
96699 + struct page *page;
96700 + const slob_t *free;
96701 + const void *base;
96702 + unsigned long flags;
96703 +
96704 + if (ZERO_OR_NULL_PTR(ptr))
96705 + return "<null>";
96706 +
96707 + if (!virt_addr_valid(ptr))
96708 + return NULL;
96709 +
96710 + page = virt_to_head_page(ptr);
96711 + if (!PageSlab(page))
96712 + return NULL;
96713 +
96714 + if (page->private) {
96715 + base = page;
96716 + if (base <= ptr && n <= page->private - (ptr - base))
96717 + return NULL;
96718 + return "<slob>";
96719 + }
96720 +
96721 + /* some tricky double walking to find the chunk */
96722 + spin_lock_irqsave(&slob_lock, flags);
96723 + base = (void *)((unsigned long)ptr & PAGE_MASK);
96724 + free = page->freelist;
96725 +
96726 + while (!slob_last(free) && (void *)free <= ptr) {
96727 + base = free + slob_units(free);
96728 + free = slob_next(free);
96729 + }
96730 +
96731 + while (base < (void *)free) {
96732 + slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
96733 + int size = SLOB_UNIT * SLOB_UNITS(m + align);
96734 + int offset;
96735 +
96736 + if (ptr < base + align)
96737 + break;
96738 +
96739 + offset = ptr - base - align;
96740 + if (offset >= m) {
96741 + base += size;
96742 + continue;
96743 + }
96744 +
96745 + if (n > m - offset)
96746 + break;
96747 +
96748 + spin_unlock_irqrestore(&slob_lock, flags);
96749 + return NULL;
96750 + }
96751 +
96752 + spin_unlock_irqrestore(&slob_lock, flags);
96753 + return "<slob>";
96754 +}
96755 +#endif
96756 +
96757 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
96758 size_t ksize(const void *block)
96759 {
96760 struct page *sp;
96761 int align;
96762 - unsigned int *m;
96763 + slob_t *m;
96764
96765 BUG_ON(!block);
96766 if (unlikely(block == ZERO_SIZE_PTR))
96767 return 0;
96768
96769 sp = virt_to_page(block);
96770 - if (unlikely(!PageSlab(sp)))
96771 - return PAGE_SIZE << compound_order(sp);
96772 + VM_BUG_ON(!PageSlab(sp));
96773 + if (sp->private)
96774 + return sp->private;
96775
96776 align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
96777 - m = (unsigned int *)(block - align);
96778 - return SLOB_UNITS(*m) * SLOB_UNIT;
96779 + m = (slob_t *)(block - align);
96780 + return SLOB_UNITS(m[0].units) * SLOB_UNIT;
96781 }
96782 EXPORT_SYMBOL(ksize);
96783
96784 @@ -536,23 +638,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
96785
96786 void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
96787 {
96788 - void *b;
96789 + void *b = NULL;
96790
96791 flags &= gfp_allowed_mask;
96792
96793 lockdep_trace_alloc(flags);
96794
96795 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96796 + b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
96797 +#else
96798 if (c->size < PAGE_SIZE) {
96799 b = slob_alloc(c->size, flags, c->align, node);
96800 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
96801 SLOB_UNITS(c->size) * SLOB_UNIT,
96802 flags, node);
96803 } else {
96804 - b = slob_new_pages(flags, get_order(c->size), node);
96805 + struct page *sp;
96806 +
96807 + sp = slob_new_pages(flags, get_order(c->size), node);
96808 + if (sp) {
96809 + b = page_address(sp);
96810 + sp->private = c->size;
96811 + }
96812 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
96813 PAGE_SIZE << get_order(c->size),
96814 flags, node);
96815 }
96816 +#endif
96817
96818 if (b && c->ctor)
96819 c->ctor(b);
96820 @@ -584,10 +696,14 @@ EXPORT_SYMBOL(kmem_cache_alloc_node);
96821
96822 static void __kmem_cache_free(void *b, int size)
96823 {
96824 - if (size < PAGE_SIZE)
96825 + struct page *sp;
96826 +
96827 + sp = virt_to_page(b);
96828 + BUG_ON(!PageSlab(sp));
96829 + if (!sp->private)
96830 slob_free(b, size);
96831 else
96832 - slob_free_pages(b, get_order(size));
96833 + slob_free_pages(sp, get_order(size));
96834 }
96835
96836 static void kmem_rcu_free(struct rcu_head *head)
96837 @@ -600,17 +716,31 @@ static void kmem_rcu_free(struct rcu_head *head)
96838
96839 void kmem_cache_free(struct kmem_cache *c, void *b)
96840 {
96841 + int size = c->size;
96842 +
96843 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96844 + if (size + c->align < PAGE_SIZE) {
96845 + size += c->align;
96846 + b -= c->align;
96847 + }
96848 +#endif
96849 +
96850 kmemleak_free_recursive(b, c->flags);
96851 if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
96852 struct slob_rcu *slob_rcu;
96853 - slob_rcu = b + (c->size - sizeof(struct slob_rcu));
96854 - slob_rcu->size = c->size;
96855 + slob_rcu = b + (size - sizeof(struct slob_rcu));
96856 + slob_rcu->size = size;
96857 call_rcu(&slob_rcu->head, kmem_rcu_free);
96858 } else {
96859 - __kmem_cache_free(b, c->size);
96860 + __kmem_cache_free(b, size);
96861 }
96862
96863 +#ifdef CONFIG_PAX_USERCOPY_SLABS
96864 + trace_kfree(_RET_IP_, b);
96865 +#else
96866 trace_kmem_cache_free(_RET_IP_, b);
96867 +#endif
96868 +
96869 }
96870 EXPORT_SYMBOL(kmem_cache_free);
96871
96872 diff --git a/mm/slub.c b/mm/slub.c
96873 index 2b1ce69..4a2193f 100644
96874 --- a/mm/slub.c
96875 +++ b/mm/slub.c
96876 @@ -207,7 +207,7 @@ struct track {
96877
96878 enum track_item { TRACK_ALLOC, TRACK_FREE };
96879
96880 -#ifdef CONFIG_SYSFS
96881 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
96882 static int sysfs_slab_add(struct kmem_cache *);
96883 static int sysfs_slab_alias(struct kmem_cache *, const char *);
96884 static void memcg_propagate_slab_attrs(struct kmem_cache *s);
96885 @@ -546,7 +546,7 @@ static void print_track(const char *s, struct track *t)
96886 if (!t->addr)
96887 return;
96888
96889 - printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
96890 + printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
96891 s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
96892 #ifdef CONFIG_STACKTRACE
96893 {
96894 @@ -2666,6 +2666,14 @@ static __always_inline void slab_free(struct kmem_cache *s,
96895
96896 slab_free_hook(s, x);
96897
96898 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96899 + if (pax_sanitize_slab && !(s->flags & SLAB_NO_SANITIZE)) {
96900 + memset(x, PAX_MEMORY_SANITIZE_VALUE, s->object_size);
96901 + if (s->ctor)
96902 + s->ctor(x);
96903 + }
96904 +#endif
96905 +
96906 redo:
96907 /*
96908 * Determine the currently cpus per cpu slab.
96909 @@ -2733,7 +2741,7 @@ static int slub_min_objects;
96910 * Merge control. If this is set then no merging of slab caches will occur.
96911 * (Could be removed. This was introduced to pacify the merge skeptics.)
96912 */
96913 -static int slub_nomerge;
96914 +static int slub_nomerge = 1;
96915
96916 /*
96917 * Calculate the order of allocation given an slab object size.
96918 @@ -3014,6 +3022,9 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)
96919 s->inuse = size;
96920
96921 if (((flags & (SLAB_DESTROY_BY_RCU | SLAB_POISON)) ||
96922 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
96923 + (pax_sanitize_slab && !(flags & SLAB_NO_SANITIZE)) ||
96924 +#endif
96925 s->ctor)) {
96926 /*
96927 * Relocate free pointer after the object if it is not
96928 @@ -3343,6 +3354,59 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
96929 EXPORT_SYMBOL(__kmalloc_node);
96930 #endif
96931
96932 +bool is_usercopy_object(const void *ptr)
96933 +{
96934 + struct page *page;
96935 + struct kmem_cache *s;
96936 +
96937 + if (ZERO_OR_NULL_PTR(ptr))
96938 + return false;
96939 +
96940 + if (!slab_is_available())
96941 + return false;
96942 +
96943 + if (!virt_addr_valid(ptr))
96944 + return false;
96945 +
96946 + page = virt_to_head_page(ptr);
96947 +
96948 + if (!PageSlab(page))
96949 + return false;
96950 +
96951 + s = page->slab_cache;
96952 + return s->flags & SLAB_USERCOPY;
96953 +}
96954 +
96955 +#ifdef CONFIG_PAX_USERCOPY
96956 +const char *check_heap_object(const void *ptr, unsigned long n)
96957 +{
96958 + struct page *page;
96959 + struct kmem_cache *s;
96960 + unsigned long offset;
96961 +
96962 + if (ZERO_OR_NULL_PTR(ptr))
96963 + return "<null>";
96964 +
96965 + if (!virt_addr_valid(ptr))
96966 + return NULL;
96967 +
96968 + page = virt_to_head_page(ptr);
96969 +
96970 + if (!PageSlab(page))
96971 + return NULL;
96972 +
96973 + s = page->slab_cache;
96974 + if (!(s->flags & SLAB_USERCOPY))
96975 + return s->name;
96976 +
96977 + offset = (ptr - page_address(page)) % s->size;
96978 + if (offset <= s->object_size && n <= s->object_size - offset)
96979 + return NULL;
96980 +
96981 + return s->name;
96982 +}
96983 +#endif
96984 +
96985 size_t ksize(const void *object)
96986 {
96987 struct page *page;
96988 @@ -3371,6 +3435,7 @@ void kfree(const void *x)
96989 if (unlikely(ZERO_OR_NULL_PTR(x)))
96990 return;
96991
96992 + VM_BUG_ON(!virt_addr_valid(x));
96993 page = virt_to_head_page(x);
96994 if (unlikely(!PageSlab(page))) {
96995 BUG_ON(!PageCompound(page));
96996 @@ -3679,7 +3744,7 @@ static int slab_unmergeable(struct kmem_cache *s)
96997 /*
96998 * We may have set a slab to be unmergeable during bootstrap.
96999 */
97000 - if (s->refcount < 0)
97001 + if (atomic_read(&s->refcount) < 0)
97002 return 1;
97003
97004 return 0;
97005 @@ -3736,7 +3801,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
97006 int i;
97007 struct kmem_cache *c;
97008
97009 - s->refcount++;
97010 + atomic_inc(&s->refcount);
97011
97012 /*
97013 * Adjust the object sizes so that we clear
97014 @@ -3755,7 +3820,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
97015 }
97016
97017 if (sysfs_slab_alias(s, name)) {
97018 - s->refcount--;
97019 + atomic_dec(&s->refcount);
97020 s = NULL;
97021 }
97022 }
97023 @@ -3872,7 +3937,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
97024 }
97025 #endif
97026
97027 -#ifdef CONFIG_SYSFS
97028 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
97029 static int count_inuse(struct page *page)
97030 {
97031 return page->inuse;
97032 @@ -4156,7 +4221,11 @@ static int list_locations(struct kmem_cache *s, char *buf,
97033 len += sprintf(buf + len, "%7ld ", l->count);
97034
97035 if (l->addr)
97036 +#ifdef CONFIG_GRKERNSEC_HIDESYM
97037 + len += sprintf(buf + len, "%pS", NULL);
97038 +#else
97039 len += sprintf(buf + len, "%pS", (void *)l->addr);
97040 +#endif
97041 else
97042 len += sprintf(buf + len, "<not-available>");
97043
97044 @@ -4261,12 +4330,12 @@ static void resiliency_test(void)
97045 validate_slab_cache(kmalloc_caches[9]);
97046 }
97047 #else
97048 -#ifdef CONFIG_SYSFS
97049 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
97050 static void resiliency_test(void) {};
97051 #endif
97052 #endif
97053
97054 -#ifdef CONFIG_SYSFS
97055 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
97056 enum slab_stat_type {
97057 SL_ALL, /* All slabs */
97058 SL_PARTIAL, /* Only partially allocated slabs */
97059 @@ -4506,13 +4575,17 @@ static ssize_t ctor_show(struct kmem_cache *s, char *buf)
97060 {
97061 if (!s->ctor)
97062 return 0;
97063 +#ifdef CONFIG_GRKERNSEC_HIDESYM
97064 + return sprintf(buf, "%pS\n", NULL);
97065 +#else
97066 return sprintf(buf, "%pS\n", s->ctor);
97067 +#endif
97068 }
97069 SLAB_ATTR_RO(ctor);
97070
97071 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
97072 {
97073 - return sprintf(buf, "%d\n", s->refcount - 1);
97074 + return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1);
97075 }
97076 SLAB_ATTR_RO(aliases);
97077
97078 @@ -4600,6 +4673,14 @@ static ssize_t cache_dma_show(struct kmem_cache *s, char *buf)
97079 SLAB_ATTR_RO(cache_dma);
97080 #endif
97081
97082 +#ifdef CONFIG_PAX_USERCOPY_SLABS
97083 +static ssize_t usercopy_show(struct kmem_cache *s, char *buf)
97084 +{
97085 + return sprintf(buf, "%d\n", !!(s->flags & SLAB_USERCOPY));
97086 +}
97087 +SLAB_ATTR_RO(usercopy);
97088 +#endif
97089 +
97090 static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
97091 {
97092 return sprintf(buf, "%d\n", !!(s->flags & SLAB_DESTROY_BY_RCU));
97093 @@ -4934,6 +5015,9 @@ static struct attribute *slab_attrs[] = {
97094 #ifdef CONFIG_ZONE_DMA
97095 &cache_dma_attr.attr,
97096 #endif
97097 +#ifdef CONFIG_PAX_USERCOPY_SLABS
97098 + &usercopy_attr.attr,
97099 +#endif
97100 #ifdef CONFIG_NUMA
97101 &remote_node_defrag_ratio_attr.attr,
97102 #endif
97103 @@ -5184,6 +5268,7 @@ static char *create_unique_id(struct kmem_cache *s)
97104 return name;
97105 }
97106
97107 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
97108 static int sysfs_slab_add(struct kmem_cache *s)
97109 {
97110 int err;
97111 @@ -5257,6 +5342,7 @@ void sysfs_slab_remove(struct kmem_cache *s)
97112 kobject_del(&s->kobj);
97113 kobject_put(&s->kobj);
97114 }
97115 +#endif
97116
97117 /*
97118 * Need to buffer aliases during bootup until sysfs becomes
97119 @@ -5270,6 +5356,7 @@ struct saved_alias {
97120
97121 static struct saved_alias *alias_list;
97122
97123 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
97124 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
97125 {
97126 struct saved_alias *al;
97127 @@ -5292,6 +5379,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
97128 alias_list = al;
97129 return 0;
97130 }
97131 +#endif
97132
97133 static int __init slab_sysfs_init(void)
97134 {
97135 diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
97136 index 4cba9c2..b4f9fcc 100644
97137 --- a/mm/sparse-vmemmap.c
97138 +++ b/mm/sparse-vmemmap.c
97139 @@ -131,7 +131,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
97140 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
97141 if (!p)
97142 return NULL;
97143 - pud_populate(&init_mm, pud, p);
97144 + pud_populate_kernel(&init_mm, pud, p);
97145 }
97146 return pud;
97147 }
97148 @@ -143,7 +143,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
97149 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
97150 if (!p)
97151 return NULL;
97152 - pgd_populate(&init_mm, pgd, p);
97153 + pgd_populate_kernel(&init_mm, pgd, p);
97154 }
97155 return pgd;
97156 }
97157 diff --git a/mm/sparse.c b/mm/sparse.c
97158 index d1b48b6..6e8590e 100644
97159 --- a/mm/sparse.c
97160 +++ b/mm/sparse.c
97161 @@ -750,7 +750,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
97162
97163 for (i = 0; i < PAGES_PER_SECTION; i++) {
97164 if (PageHWPoison(&memmap[i])) {
97165 - atomic_long_sub(1, &num_poisoned_pages);
97166 + atomic_long_sub_unchecked(1, &num_poisoned_pages);
97167 ClearPageHWPoison(&memmap[i]);
97168 }
97169 }
97170 diff --git a/mm/swap.c b/mm/swap.c
97171 index 9ce43ba..43bdc4c 100644
97172 --- a/mm/swap.c
97173 +++ b/mm/swap.c
97174 @@ -31,6 +31,7 @@
97175 #include <linux/memcontrol.h>
97176 #include <linux/gfp.h>
97177 #include <linux/uio.h>
97178 +#include <linux/hugetlb.h>
97179
97180 #include "internal.h"
97181
97182 @@ -76,6 +77,8 @@ static void __put_compound_page(struct page *page)
97183
97184 __page_cache_release(page);
97185 dtor = get_compound_page_dtor(page);
97186 + if (!PageHuge(page))
97187 + BUG_ON(dtor != free_compound_page);
97188 (*dtor)(page);
97189 }
97190
97191 diff --git a/mm/swapfile.c b/mm/swapfile.c
97192 index 4a7f7e6..22cddf5 100644
97193 --- a/mm/swapfile.c
97194 +++ b/mm/swapfile.c
97195 @@ -66,7 +66,7 @@ static DEFINE_MUTEX(swapon_mutex);
97196
97197 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
97198 /* Activity counter to indicate that a swapon or swapoff has occurred */
97199 -static atomic_t proc_poll_event = ATOMIC_INIT(0);
97200 +static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
97201
97202 static inline unsigned char swap_count(unsigned char ent)
97203 {
97204 @@ -1959,7 +1959,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
97205 spin_unlock(&swap_lock);
97206
97207 err = 0;
97208 - atomic_inc(&proc_poll_event);
97209 + atomic_inc_unchecked(&proc_poll_event);
97210 wake_up_interruptible(&proc_poll_wait);
97211
97212 out_dput:
97213 @@ -1976,8 +1976,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
97214
97215 poll_wait(file, &proc_poll_wait, wait);
97216
97217 - if (seq->poll_event != atomic_read(&proc_poll_event)) {
97218 - seq->poll_event = atomic_read(&proc_poll_event);
97219 + if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
97220 + seq->poll_event = atomic_read_unchecked(&proc_poll_event);
97221 return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
97222 }
97223
97224 @@ -2075,7 +2075,7 @@ static int swaps_open(struct inode *inode, struct file *file)
97225 return ret;
97226
97227 seq = file->private_data;
97228 - seq->poll_event = atomic_read(&proc_poll_event);
97229 + seq->poll_event = atomic_read_unchecked(&proc_poll_event);
97230 return 0;
97231 }
97232
97233 @@ -2534,7 +2534,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
97234 (frontswap_map) ? "FS" : "");
97235
97236 mutex_unlock(&swapon_mutex);
97237 - atomic_inc(&proc_poll_event);
97238 + atomic_inc_unchecked(&proc_poll_event);
97239 wake_up_interruptible(&proc_poll_wait);
97240
97241 if (S_ISREG(inode->i_mode))
97242 diff --git a/mm/util.c b/mm/util.c
97243 index d5ea733..e8953f9 100644
97244 --- a/mm/util.c
97245 +++ b/mm/util.c
97246 @@ -299,6 +299,12 @@ done:
97247 void arch_pick_mmap_layout(struct mm_struct *mm)
97248 {
97249 mm->mmap_base = TASK_UNMAPPED_BASE;
97250 +
97251 +#ifdef CONFIG_PAX_RANDMMAP
97252 + if (mm->pax_flags & MF_PAX_RANDMMAP)
97253 + mm->mmap_base += mm->delta_mmap;
97254 +#endif
97255 +
97256 mm->get_unmapped_area = arch_get_unmapped_area;
97257 }
97258 #endif
97259 @@ -475,6 +481,9 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen)
97260 if (!mm->arg_end)
97261 goto out_mm; /* Shh! No looking before we're done */
97262
97263 + if (gr_acl_handle_procpidmem(task))
97264 + goto out_mm;
97265 +
97266 len = mm->arg_end - mm->arg_start;
97267
97268 if (len > buflen)
97269 diff --git a/mm/vmalloc.c b/mm/vmalloc.c
97270 index bf233b2..1dfa1bc 100644
97271 --- a/mm/vmalloc.c
97272 +++ b/mm/vmalloc.c
97273 @@ -40,6 +40,21 @@ struct vfree_deferred {
97274 };
97275 static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
97276
97277 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97278 +struct stack_deferred_llist {
97279 + struct llist_head list;
97280 + void *stack;
97281 + void *lowmem_stack;
97282 +};
97283 +
97284 +struct stack_deferred {
97285 + struct stack_deferred_llist list;
97286 + struct work_struct wq;
97287 +};
97288 +
97289 +static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
97290 +#endif
97291 +
97292 static void __vunmap(const void *, int);
97293
97294 static void free_work(struct work_struct *w)
97295 @@ -47,12 +62,30 @@ static void free_work(struct work_struct *w)
97296 struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
97297 struct llist_node *llnode = llist_del_all(&p->list);
97298 while (llnode) {
97299 - void *p = llnode;
97300 + void *x = llnode;
97301 llnode = llist_next(llnode);
97302 - __vunmap(p, 1);
97303 + __vunmap(x, 1);
97304 }
97305 }
97306
97307 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97308 +static void unmap_work(struct work_struct *w)
97309 +{
97310 + struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
97311 + struct llist_node *llnode = llist_del_all(&p->list.list);
97312 + while (llnode) {
97313 + struct stack_deferred_llist *x =
97314 + llist_entry((struct llist_head *)llnode,
97315 + struct stack_deferred_llist, list);
97316 + void *stack = ACCESS_ONCE(x->stack);
97317 + void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
97318 + llnode = llist_next(llnode);
97319 + __vunmap(stack, 0);
97320 + free_memcg_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
97321 + }
97322 +}
97323 +#endif
97324 +
97325 /*** Page table manipulation functions ***/
97326
97327 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
97328 @@ -61,8 +94,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
97329
97330 pte = pte_offset_kernel(pmd, addr);
97331 do {
97332 - pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
97333 - WARN_ON(!pte_none(ptent) && !pte_present(ptent));
97334 +
97335 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
97336 + if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
97337 + BUG_ON(!pte_exec(*pte));
97338 + set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
97339 + continue;
97340 + }
97341 +#endif
97342 +
97343 + {
97344 + pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
97345 + WARN_ON(!pte_none(ptent) && !pte_present(ptent));
97346 + }
97347 } while (pte++, addr += PAGE_SIZE, addr != end);
97348 }
97349
97350 @@ -122,16 +166,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
97351 pte = pte_alloc_kernel(pmd, addr);
97352 if (!pte)
97353 return -ENOMEM;
97354 +
97355 + pax_open_kernel();
97356 do {
97357 struct page *page = pages[*nr];
97358
97359 - if (WARN_ON(!pte_none(*pte)))
97360 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
97361 + if (pgprot_val(prot) & _PAGE_NX)
97362 +#endif
97363 +
97364 + if (!pte_none(*pte)) {
97365 + pax_close_kernel();
97366 + WARN_ON(1);
97367 return -EBUSY;
97368 - if (WARN_ON(!page))
97369 + }
97370 + if (!page) {
97371 + pax_close_kernel();
97372 + WARN_ON(1);
97373 return -ENOMEM;
97374 + }
97375 set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
97376 (*nr)++;
97377 } while (pte++, addr += PAGE_SIZE, addr != end);
97378 + pax_close_kernel();
97379 return 0;
97380 }
97381
97382 @@ -141,7 +198,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
97383 pmd_t *pmd;
97384 unsigned long next;
97385
97386 - pmd = pmd_alloc(&init_mm, pud, addr);
97387 + pmd = pmd_alloc_kernel(&init_mm, pud, addr);
97388 if (!pmd)
97389 return -ENOMEM;
97390 do {
97391 @@ -158,7 +215,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
97392 pud_t *pud;
97393 unsigned long next;
97394
97395 - pud = pud_alloc(&init_mm, pgd, addr);
97396 + pud = pud_alloc_kernel(&init_mm, pgd, addr);
97397 if (!pud)
97398 return -ENOMEM;
97399 do {
97400 @@ -218,6 +275,12 @@ int is_vmalloc_or_module_addr(const void *x)
97401 if (addr >= MODULES_VADDR && addr < MODULES_END)
97402 return 1;
97403 #endif
97404 +
97405 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
97406 + if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
97407 + return 1;
97408 +#endif
97409 +
97410 return is_vmalloc_addr(x);
97411 }
97412
97413 @@ -238,8 +301,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
97414
97415 if (!pgd_none(*pgd)) {
97416 pud_t *pud = pud_offset(pgd, addr);
97417 +#ifdef CONFIG_X86
97418 + if (!pud_large(*pud))
97419 +#endif
97420 if (!pud_none(*pud)) {
97421 pmd_t *pmd = pmd_offset(pud, addr);
97422 +#ifdef CONFIG_X86
97423 + if (!pmd_large(*pmd))
97424 +#endif
97425 if (!pmd_none(*pmd)) {
97426 pte_t *ptep, pte;
97427
97428 @@ -1183,13 +1252,23 @@ void __init vmalloc_init(void)
97429 for_each_possible_cpu(i) {
97430 struct vmap_block_queue *vbq;
97431 struct vfree_deferred *p;
97432 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97433 + struct stack_deferred *p2;
97434 +#endif
97435
97436 vbq = &per_cpu(vmap_block_queue, i);
97437 spin_lock_init(&vbq->lock);
97438 INIT_LIST_HEAD(&vbq->free);
97439 +
97440 p = &per_cpu(vfree_deferred, i);
97441 init_llist_head(&p->list);
97442 INIT_WORK(&p->wq, free_work);
97443 +
97444 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97445 + p2 = &per_cpu(stack_deferred, i);
97446 + init_llist_head(&p2->list.list);
97447 + INIT_WORK(&p2->wq, unmap_work);
97448 +#endif
97449 }
97450
97451 /* Import existing vmlist entries. */
97452 @@ -1317,6 +1396,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
97453 struct vm_struct *area;
97454
97455 BUG_ON(in_interrupt());
97456 +
97457 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
97458 + if (flags & VM_KERNEXEC) {
97459 + if (start != VMALLOC_START || end != VMALLOC_END)
97460 + return NULL;
97461 + start = (unsigned long)MODULES_EXEC_VADDR;
97462 + end = (unsigned long)MODULES_EXEC_END;
97463 + }
97464 +#endif
97465 +
97466 if (flags & VM_IOREMAP)
97467 align = 1ul << clamp(fls(size), PAGE_SHIFT, IOREMAP_MAX_ORDER);
97468
97469 @@ -1522,6 +1611,23 @@ void vunmap(const void *addr)
97470 }
97471 EXPORT_SYMBOL(vunmap);
97472
97473 +#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97474 +void unmap_process_stacks(struct task_struct *task)
97475 +{
97476 + if (unlikely(in_interrupt())) {
97477 + struct stack_deferred *p = &__get_cpu_var(stack_deferred);
97478 + struct stack_deferred_llist *list = task->stack;
97479 + list->stack = task->stack;
97480 + list->lowmem_stack = task->lowmem_stack;
97481 + if (llist_add((struct llist_node *)&list->list, &p->list.list))
97482 + schedule_work(&p->wq);
97483 + } else {
97484 + __vunmap(task->stack, 0);
97485 + free_memcg_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
97486 + }
97487 +}
97488 +#endif
97489 +
97490 /**
97491 * vmap - map an array of pages into virtually contiguous space
97492 * @pages: array of page pointers
97493 @@ -1542,6 +1648,11 @@ void *vmap(struct page **pages, unsigned int count,
97494 if (count > totalram_pages)
97495 return NULL;
97496
97497 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
97498 + if (!(pgprot_val(prot) & _PAGE_NX))
97499 + flags |= VM_KERNEXEC;
97500 +#endif
97501 +
97502 area = get_vm_area_caller((count << PAGE_SHIFT), flags,
97503 __builtin_return_address(0));
97504 if (!area)
97505 @@ -1642,6 +1753,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
97506 if (!size || (size >> PAGE_SHIFT) > totalram_pages)
97507 goto fail;
97508
97509 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
97510 + if (!(pgprot_val(prot) & _PAGE_NX))
97511 + area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED | VM_KERNEXEC,
97512 + VMALLOC_START, VMALLOC_END, node, gfp_mask, caller);
97513 + else
97514 +#endif
97515 +
97516 area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
97517 start, end, node, gfp_mask, caller);
97518 if (!area)
97519 @@ -1818,10 +1936,9 @@ EXPORT_SYMBOL(vzalloc_node);
97520 * For tight control over page level allocator and protection flags
97521 * use __vmalloc() instead.
97522 */
97523 -
97524 void *vmalloc_exec(unsigned long size)
97525 {
97526 - return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
97527 + return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
97528 NUMA_NO_NODE, __builtin_return_address(0));
97529 }
97530
97531 @@ -2128,6 +2245,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
97532 {
97533 struct vm_struct *area;
97534
97535 + BUG_ON(vma->vm_mirror);
97536 +
97537 size = PAGE_ALIGN(size);
97538
97539 if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
97540 @@ -2610,7 +2729,11 @@ static int s_show(struct seq_file *m, void *p)
97541 v->addr, v->addr + v->size, v->size);
97542
97543 if (v->caller)
97544 +#ifdef CONFIG_GRKERNSEC_HIDESYM
97545 + seq_printf(m, " %pK", v->caller);
97546 +#else
97547 seq_printf(m, " %pS", v->caller);
97548 +#endif
97549
97550 if (v->nr_pages)
97551 seq_printf(m, " pages=%d", v->nr_pages);
97552 diff --git a/mm/vmstat.c b/mm/vmstat.c
97553 index 302dd07..3841f1c 100644
97554 --- a/mm/vmstat.c
97555 +++ b/mm/vmstat.c
97556 @@ -20,6 +20,7 @@
97557 #include <linux/writeback.h>
97558 #include <linux/compaction.h>
97559 #include <linux/mm_inline.h>
97560 +#include <linux/grsecurity.h>
97561
97562 #include "internal.h"
97563
97564 @@ -79,7 +80,7 @@ void vm_events_fold_cpu(int cpu)
97565 *
97566 * vm_stat contains the global counters
97567 */
97568 -atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
97569 +atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
97570 EXPORT_SYMBOL(vm_stat);
97571
97572 #ifdef CONFIG_SMP
97573 @@ -423,7 +424,7 @@ static inline void fold_diff(int *diff)
97574
97575 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
97576 if (diff[i])
97577 - atomic_long_add(diff[i], &vm_stat[i]);
97578 + atomic_long_add_unchecked(diff[i], &vm_stat[i]);
97579 }
97580
97581 /*
97582 @@ -455,7 +456,7 @@ static void refresh_cpu_vm_stats(void)
97583 v = this_cpu_xchg(p->vm_stat_diff[i], 0);
97584 if (v) {
97585
97586 - atomic_long_add(v, &zone->vm_stat[i]);
97587 + atomic_long_add_unchecked(v, &zone->vm_stat[i]);
97588 global_diff[i] += v;
97589 #ifdef CONFIG_NUMA
97590 /* 3 seconds idle till flush */
97591 @@ -517,7 +518,7 @@ void cpu_vm_stats_fold(int cpu)
97592
97593 v = p->vm_stat_diff[i];
97594 p->vm_stat_diff[i] = 0;
97595 - atomic_long_add(v, &zone->vm_stat[i]);
97596 + atomic_long_add_unchecked(v, &zone->vm_stat[i]);
97597 global_diff[i] += v;
97598 }
97599 }
97600 @@ -537,8 +538,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
97601 if (pset->vm_stat_diff[i]) {
97602 int v = pset->vm_stat_diff[i];
97603 pset->vm_stat_diff[i] = 0;
97604 - atomic_long_add(v, &zone->vm_stat[i]);
97605 - atomic_long_add(v, &vm_stat[i]);
97606 + atomic_long_add_unchecked(v, &zone->vm_stat[i]);
97607 + atomic_long_add_unchecked(v, &vm_stat[i]);
97608 }
97609 }
97610 #endif
97611 @@ -1156,10 +1157,22 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
97612 stat_items_size += sizeof(struct vm_event_state);
97613 #endif
97614
97615 - v = kmalloc(stat_items_size, GFP_KERNEL);
97616 + v = kzalloc(stat_items_size, GFP_KERNEL);
97617 m->private = v;
97618 if (!v)
97619 return ERR_PTR(-ENOMEM);
97620 +
97621 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
97622 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
97623 + if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
97624 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
97625 + && !in_group_p(grsec_proc_gid)
97626 +#endif
97627 + )
97628 + return (unsigned long *)m->private + *pos;
97629 +#endif
97630 +#endif
97631 +
97632 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
97633 v[i] = global_page_state(i);
97634 v += NR_VM_ZONE_STAT_ITEMS;
97635 @@ -1308,10 +1321,16 @@ static int __init setup_vmstat(void)
97636 cpu_notifier_register_done();
97637 #endif
97638 #ifdef CONFIG_PROC_FS
97639 - proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
97640 - proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
97641 - proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
97642 - proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
97643 + {
97644 + mode_t gr_mode = S_IRUGO;
97645 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
97646 + gr_mode = S_IRUSR;
97647 +#endif
97648 + proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
97649 + proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
97650 + proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
97651 + proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
97652 + }
97653 #endif
97654 return 0;
97655 }
97656 diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
97657 index 44ebd5c..1f732bae 100644
97658 --- a/net/8021q/vlan.c
97659 +++ b/net/8021q/vlan.c
97660 @@ -475,7 +475,7 @@ out:
97661 return NOTIFY_DONE;
97662 }
97663
97664 -static struct notifier_block vlan_notifier_block __read_mostly = {
97665 +static struct notifier_block vlan_notifier_block = {
97666 .notifier_call = vlan_device_event,
97667 };
97668
97669 @@ -550,8 +550,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
97670 err = -EPERM;
97671 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
97672 break;
97673 - if ((args.u.name_type >= 0) &&
97674 - (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
97675 + if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
97676 struct vlan_net *vn;
97677
97678 vn = net_generic(net, vlan_net_id);
97679 diff --git a/net/9p/client.c b/net/9p/client.c
97680 index 0004cba..feba240 100644
97681 --- a/net/9p/client.c
97682 +++ b/net/9p/client.c
97683 @@ -596,7 +596,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
97684 len - inline_len);
97685 } else {
97686 err = copy_from_user(ename + inline_len,
97687 - uidata, len - inline_len);
97688 + (char __force_user *)uidata, len - inline_len);
97689 if (err) {
97690 err = -EFAULT;
97691 goto out_err;
97692 @@ -1571,7 +1571,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
97693 kernel_buf = 1;
97694 indata = data;
97695 } else
97696 - indata = (__force char *)udata;
97697 + indata = (__force_kernel char *)udata;
97698 /*
97699 * response header len is 11
97700 * PDU Header(7) + IO Size (4)
97701 @@ -1646,7 +1646,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
97702 kernel_buf = 1;
97703 odata = data;
97704 } else
97705 - odata = (char *)udata;
97706 + odata = (char __force_kernel *)udata;
97707 req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize,
97708 P9_ZC_HDR_SZ, kernel_buf, "dqd",
97709 fid->fid, offset, rsize);
97710 diff --git a/net/9p/mod.c b/net/9p/mod.c
97711 index 6ab36ae..6f1841b 100644
97712 --- a/net/9p/mod.c
97713 +++ b/net/9p/mod.c
97714 @@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
97715 void v9fs_register_trans(struct p9_trans_module *m)
97716 {
97717 spin_lock(&v9fs_trans_lock);
97718 - list_add_tail(&m->list, &v9fs_trans_list);
97719 + pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
97720 spin_unlock(&v9fs_trans_lock);
97721 }
97722 EXPORT_SYMBOL(v9fs_register_trans);
97723 @@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
97724 void v9fs_unregister_trans(struct p9_trans_module *m)
97725 {
97726 spin_lock(&v9fs_trans_lock);
97727 - list_del_init(&m->list);
97728 + pax_list_del_init((struct list_head *)&m->list);
97729 spin_unlock(&v9fs_trans_lock);
97730 }
97731 EXPORT_SYMBOL(v9fs_unregister_trans);
97732 diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
97733 index 80d08f6..de63fd1 100644
97734 --- a/net/9p/trans_fd.c
97735 +++ b/net/9p/trans_fd.c
97736 @@ -428,7 +428,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
97737 oldfs = get_fs();
97738 set_fs(get_ds());
97739 /* The cast to a user pointer is valid due to the set_fs() */
97740 - ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
97741 + ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
97742 set_fs(oldfs);
97743
97744 if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
97745 diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
97746 index af46bc4..f9adfcd 100644
97747 --- a/net/appletalk/atalk_proc.c
97748 +++ b/net/appletalk/atalk_proc.c
97749 @@ -256,7 +256,7 @@ int __init atalk_proc_init(void)
97750 struct proc_dir_entry *p;
97751 int rc = -ENOMEM;
97752
97753 - atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
97754 + atalk_proc_dir = proc_mkdir_restrict("atalk", init_net.proc_net);
97755 if (!atalk_proc_dir)
97756 goto out;
97757
97758 diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
97759 index 876fbe8..8bbea9f 100644
97760 --- a/net/atm/atm_misc.c
97761 +++ b/net/atm/atm_misc.c
97762 @@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
97763 if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
97764 return 1;
97765 atm_return(vcc, truesize);
97766 - atomic_inc(&vcc->stats->rx_drop);
97767 + atomic_inc_unchecked(&vcc->stats->rx_drop);
97768 return 0;
97769 }
97770 EXPORT_SYMBOL(atm_charge);
97771 @@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
97772 }
97773 }
97774 atm_return(vcc, guess);
97775 - atomic_inc(&vcc->stats->rx_drop);
97776 + atomic_inc_unchecked(&vcc->stats->rx_drop);
97777 return NULL;
97778 }
97779 EXPORT_SYMBOL(atm_alloc_charge);
97780 @@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
97781
97782 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
97783 {
97784 -#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
97785 +#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
97786 __SONET_ITEMS
97787 #undef __HANDLE_ITEM
97788 }
97789 @@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
97790
97791 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
97792 {
97793 -#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
97794 +#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
97795 __SONET_ITEMS
97796 #undef __HANDLE_ITEM
97797 }
97798 diff --git a/net/atm/lec.c b/net/atm/lec.c
97799 index 4c5b8ba..95f7005 100644
97800 --- a/net/atm/lec.c
97801 +++ b/net/atm/lec.c
97802 @@ -111,9 +111,9 @@ static inline void lec_arp_put(struct lec_arp_table *entry)
97803 }
97804
97805 static struct lane2_ops lane2_ops = {
97806 - lane2_resolve, /* resolve, spec 3.1.3 */
97807 - lane2_associate_req, /* associate_req, spec 3.1.4 */
97808 - NULL /* associate indicator, spec 3.1.5 */
97809 + .resolve = lane2_resolve,
97810 + .associate_req = lane2_associate_req,
97811 + .associate_indicator = NULL
97812 };
97813
97814 static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
97815 diff --git a/net/atm/lec.h b/net/atm/lec.h
97816 index 4149db1..f2ab682 100644
97817 --- a/net/atm/lec.h
97818 +++ b/net/atm/lec.h
97819 @@ -48,7 +48,7 @@ struct lane2_ops {
97820 const u8 *tlvs, u32 sizeoftlvs);
97821 void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
97822 const u8 *tlvs, u32 sizeoftlvs);
97823 -};
97824 +} __no_const;
97825
97826 /*
97827 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
97828 diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
97829 index d1b2d9a..d549f7f 100644
97830 --- a/net/atm/mpoa_caches.c
97831 +++ b/net/atm/mpoa_caches.c
97832 @@ -535,30 +535,30 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
97833
97834
97835 static struct in_cache_ops ingress_ops = {
97836 - in_cache_add_entry, /* add_entry */
97837 - in_cache_get, /* get */
97838 - in_cache_get_with_mask, /* get_with_mask */
97839 - in_cache_get_by_vcc, /* get_by_vcc */
97840 - in_cache_put, /* put */
97841 - in_cache_remove_entry, /* remove_entry */
97842 - cache_hit, /* cache_hit */
97843 - clear_count_and_expired, /* clear_count */
97844 - check_resolving_entries, /* check_resolving */
97845 - refresh_entries, /* refresh */
97846 - in_destroy_cache /* destroy_cache */
97847 + .add_entry = in_cache_add_entry,
97848 + .get = in_cache_get,
97849 + .get_with_mask = in_cache_get_with_mask,
97850 + .get_by_vcc = in_cache_get_by_vcc,
97851 + .put = in_cache_put,
97852 + .remove_entry = in_cache_remove_entry,
97853 + .cache_hit = cache_hit,
97854 + .clear_count = clear_count_and_expired,
97855 + .check_resolving = check_resolving_entries,
97856 + .refresh = refresh_entries,
97857 + .destroy_cache = in_destroy_cache
97858 };
97859
97860 static struct eg_cache_ops egress_ops = {
97861 - eg_cache_add_entry, /* add_entry */
97862 - eg_cache_get_by_cache_id, /* get_by_cache_id */
97863 - eg_cache_get_by_tag, /* get_by_tag */
97864 - eg_cache_get_by_vcc, /* get_by_vcc */
97865 - eg_cache_get_by_src_ip, /* get_by_src_ip */
97866 - eg_cache_put, /* put */
97867 - eg_cache_remove_entry, /* remove_entry */
97868 - update_eg_cache_entry, /* update */
97869 - clear_expired, /* clear_expired */
97870 - eg_destroy_cache /* destroy_cache */
97871 + .add_entry = eg_cache_add_entry,
97872 + .get_by_cache_id = eg_cache_get_by_cache_id,
97873 + .get_by_tag = eg_cache_get_by_tag,
97874 + .get_by_vcc = eg_cache_get_by_vcc,
97875 + .get_by_src_ip = eg_cache_get_by_src_ip,
97876 + .put = eg_cache_put,
97877 + .remove_entry = eg_cache_remove_entry,
97878 + .update = update_eg_cache_entry,
97879 + .clear_expired = clear_expired,
97880 + .destroy_cache = eg_destroy_cache
97881 };
97882
97883
97884 diff --git a/net/atm/proc.c b/net/atm/proc.c
97885 index bbb6461..cf04016 100644
97886 --- a/net/atm/proc.c
97887 +++ b/net/atm/proc.c
97888 @@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
97889 const struct k_atm_aal_stats *stats)
97890 {
97891 seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
97892 - atomic_read(&stats->tx), atomic_read(&stats->tx_err),
97893 - atomic_read(&stats->rx), atomic_read(&stats->rx_err),
97894 - atomic_read(&stats->rx_drop));
97895 + atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
97896 + atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
97897 + atomic_read_unchecked(&stats->rx_drop));
97898 }
97899
97900 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
97901 diff --git a/net/atm/resources.c b/net/atm/resources.c
97902 index 0447d5d..3cf4728 100644
97903 --- a/net/atm/resources.c
97904 +++ b/net/atm/resources.c
97905 @@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
97906 static void copy_aal_stats(struct k_atm_aal_stats *from,
97907 struct atm_aal_stats *to)
97908 {
97909 -#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
97910 +#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
97911 __AAL_STAT_ITEMS
97912 #undef __HANDLE_ITEM
97913 }
97914 @@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
97915 static void subtract_aal_stats(struct k_atm_aal_stats *from,
97916 struct atm_aal_stats *to)
97917 {
97918 -#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
97919 +#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
97920 __AAL_STAT_ITEMS
97921 #undef __HANDLE_ITEM
97922 }
97923 diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
97924 index 919a5ce..cc6b444 100644
97925 --- a/net/ax25/sysctl_net_ax25.c
97926 +++ b/net/ax25/sysctl_net_ax25.c
97927 @@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
97928 {
97929 char path[sizeof("net/ax25/") + IFNAMSIZ];
97930 int k;
97931 - struct ctl_table *table;
97932 + ctl_table_no_const *table;
97933
97934 table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
97935 if (!table)
97936 diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
97937 index f04224c..f326579 100644
97938 --- a/net/batman-adv/bat_iv_ogm.c
97939 +++ b/net/batman-adv/bat_iv_ogm.c
97940 @@ -312,7 +312,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
97941
97942 /* randomize initial seqno to avoid collision */
97943 get_random_bytes(&random_seqno, sizeof(random_seqno));
97944 - atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
97945 + atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
97946
97947 hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
97948 ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
97949 @@ -917,9 +917,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
97950 batadv_ogm_packet->tvlv_len = htons(tvlv_len);
97951
97952 /* change sequence number to network order */
97953 - seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
97954 + seqno = (uint32_t)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
97955 batadv_ogm_packet->seqno = htonl(seqno);
97956 - atomic_inc(&hard_iface->bat_iv.ogm_seqno);
97957 + atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
97958
97959 batadv_iv_ogm_slide_own_bcast_window(hard_iface);
97960
97961 @@ -1596,7 +1596,7 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
97962 return;
97963
97964 /* could be changed by schedule_own_packet() */
97965 - if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
97966 + if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
97967
97968 if (ogm_packet->flags & BATADV_DIRECTLINK)
97969 has_directlink_flag = true;
97970 diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
97971 index f14e54a..66f3e2e 100644
97972 --- a/net/batman-adv/fragmentation.c
97973 +++ b/net/batman-adv/fragmentation.c
97974 @@ -446,7 +446,7 @@ bool batadv_frag_send_packet(struct sk_buff *skb,
97975 frag_header.packet_type = BATADV_UNICAST_FRAG;
97976 frag_header.version = BATADV_COMPAT_VERSION;
97977 frag_header.ttl = BATADV_TTL;
97978 - frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
97979 + frag_header.seqno = htons(atomic_inc_return_unchecked(&bat_priv->frag_seqno));
97980 frag_header.reserved = 0;
97981 frag_header.no = 0;
97982 frag_header.total_size = htons(skb->len);
97983 diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
97984 index 744a59b..8fd037c 100644
97985 --- a/net/batman-adv/soft-interface.c
97986 +++ b/net/batman-adv/soft-interface.c
97987 @@ -296,7 +296,7 @@ send:
97988 primary_if->net_dev->dev_addr);
97989
97990 /* set broadcast sequence number */
97991 - seqno = atomic_inc_return(&bat_priv->bcast_seqno);
97992 + seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
97993 bcast_packet->seqno = htonl(seqno);
97994
97995 batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
97996 @@ -729,7 +729,7 @@ static int batadv_softif_init_late(struct net_device *dev)
97997 atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
97998
97999 atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
98000 - atomic_set(&bat_priv->bcast_seqno, 1);
98001 + atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
98002 atomic_set(&bat_priv->tt.vn, 0);
98003 atomic_set(&bat_priv->tt.local_changes, 0);
98004 atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
98005 @@ -743,7 +743,7 @@ static int batadv_softif_init_late(struct net_device *dev)
98006
98007 /* randomize initial seqno to avoid collision */
98008 get_random_bytes(&random_seqno, sizeof(random_seqno));
98009 - atomic_set(&bat_priv->frag_seqno, random_seqno);
98010 + atomic_set_unchecked(&bat_priv->frag_seqno, random_seqno);
98011
98012 bat_priv->primary_if = NULL;
98013 bat_priv->num_ifaces = 0;
98014 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
98015 index 34891a5..3cfece0 100644
98016 --- a/net/batman-adv/types.h
98017 +++ b/net/batman-adv/types.h
98018 @@ -67,7 +67,7 @@ enum batadv_dhcp_recipient {
98019 struct batadv_hard_iface_bat_iv {
98020 unsigned char *ogm_buff;
98021 int ogm_buff_len;
98022 - atomic_t ogm_seqno;
98023 + atomic_unchecked_t ogm_seqno;
98024 };
98025
98026 /**
98027 @@ -766,7 +766,7 @@ struct batadv_priv {
98028 atomic_t bonding;
98029 atomic_t fragmentation;
98030 atomic_t packet_size_max;
98031 - atomic_t frag_seqno;
98032 + atomic_unchecked_t frag_seqno;
98033 #ifdef CONFIG_BATMAN_ADV_BLA
98034 atomic_t bridge_loop_avoidance;
98035 #endif
98036 @@ -785,7 +785,7 @@ struct batadv_priv {
98037 #endif
98038 uint32_t isolation_mark;
98039 uint32_t isolation_mark_mask;
98040 - atomic_t bcast_seqno;
98041 + atomic_unchecked_t bcast_seqno;
98042 atomic_t bcast_queue_left;
98043 atomic_t batman_queue_left;
98044 char num_ifaces;
98045 diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
98046 index b9a418e..2af862a 100644
98047 --- a/net/bluetooth/hci_sock.c
98048 +++ b/net/bluetooth/hci_sock.c
98049 @@ -1053,7 +1053,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
98050 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
98051 }
98052
98053 - len = min_t(unsigned int, len, sizeof(uf));
98054 + len = min((size_t)len, sizeof(uf));
98055 if (copy_from_user(&uf, optval, len)) {
98056 err = -EFAULT;
98057 break;
98058 diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
98059 index 1c97b7a..9171d69 100644
98060 --- a/net/bluetooth/l2cap_core.c
98061 +++ b/net/bluetooth/l2cap_core.c
98062 @@ -3542,8 +3542,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
98063 break;
98064
98065 case L2CAP_CONF_RFC:
98066 - if (olen == sizeof(rfc))
98067 - memcpy(&rfc, (void *)val, olen);
98068 + if (olen != sizeof(rfc))
98069 + break;
98070 +
98071 + memcpy(&rfc, (void *)val, olen);
98072
98073 if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
98074 rfc.mode != chan->mode)
98075 diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
98076 index e137869..33f3ebd 100644
98077 --- a/net/bluetooth/l2cap_sock.c
98078 +++ b/net/bluetooth/l2cap_sock.c
98079 @@ -628,7 +628,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
98080 struct sock *sk = sock->sk;
98081 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
98082 struct l2cap_options opts;
98083 - int len, err = 0;
98084 + int err = 0;
98085 + size_t len = optlen;
98086 u32 opt;
98087
98088 BT_DBG("sk %p", sk);
98089 @@ -655,7 +656,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
98090 opts.max_tx = chan->max_tx;
98091 opts.txwin_size = chan->tx_win;
98092
98093 - len = min_t(unsigned int, sizeof(opts), optlen);
98094 + len = min(sizeof(opts), len);
98095 if (copy_from_user((char *) &opts, optval, len)) {
98096 err = -EFAULT;
98097 break;
98098 @@ -742,7 +743,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
98099 struct bt_security sec;
98100 struct bt_power pwr;
98101 struct l2cap_conn *conn;
98102 - int len, err = 0;
98103 + int err = 0;
98104 + size_t len = optlen;
98105 u32 opt;
98106
98107 BT_DBG("sk %p", sk);
98108 @@ -766,7 +768,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
98109
98110 sec.level = BT_SECURITY_LOW;
98111
98112 - len = min_t(unsigned int, sizeof(sec), optlen);
98113 + len = min(sizeof(sec), len);
98114 if (copy_from_user((char *) &sec, optval, len)) {
98115 err = -EFAULT;
98116 break;
98117 @@ -861,7 +863,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
98118
98119 pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
98120
98121 - len = min_t(unsigned int, sizeof(pwr), optlen);
98122 + len = min(sizeof(pwr), len);
98123 if (copy_from_user((char *) &pwr, optval, len)) {
98124 err = -EFAULT;
98125 break;
98126 diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
98127 index c603a5e..7f08991 100644
98128 --- a/net/bluetooth/rfcomm/sock.c
98129 +++ b/net/bluetooth/rfcomm/sock.c
98130 @@ -687,7 +687,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
98131 struct sock *sk = sock->sk;
98132 struct bt_security sec;
98133 int err = 0;
98134 - size_t len;
98135 + size_t len = optlen;
98136 u32 opt;
98137
98138 BT_DBG("sk %p", sk);
98139 @@ -709,7 +709,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
98140
98141 sec.level = BT_SECURITY_LOW;
98142
98143 - len = min_t(unsigned int, sizeof(sec), optlen);
98144 + len = min(sizeof(sec), len);
98145 if (copy_from_user((char *) &sec, optval, len)) {
98146 err = -EFAULT;
98147 break;
98148 diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
98149 index 403ec09..a21a003 100644
98150 --- a/net/bluetooth/rfcomm/tty.c
98151 +++ b/net/bluetooth/rfcomm/tty.c
98152 @@ -752,7 +752,7 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
98153 BT_DBG("tty %p id %d", tty, tty->index);
98154
98155 BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
98156 - dev->channel, dev->port.count);
98157 + dev->channel, atomic_read(&dev->port.count));
98158
98159 err = tty_port_open(&dev->port, tty, filp);
98160 if (err)
98161 @@ -775,7 +775,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
98162 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
98163
98164 BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
98165 - dev->port.count);
98166 + atomic_read(&dev->port.count));
98167
98168 tty_port_close(&dev->port, tty, filp);
98169 }
98170 diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
98171 index 1059ed3..d70846a 100644
98172 --- a/net/bridge/netfilter/ebtables.c
98173 +++ b/net/bridge/netfilter/ebtables.c
98174 @@ -1524,7 +1524,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
98175 tmp.valid_hooks = t->table->valid_hooks;
98176 }
98177 mutex_unlock(&ebt_mutex);
98178 - if (copy_to_user(user, &tmp, *len) != 0) {
98179 + if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
98180 BUGPRINT("c2u Didn't work\n");
98181 ret = -EFAULT;
98182 break;
98183 @@ -2330,7 +2330,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
98184 goto out;
98185 tmp.valid_hooks = t->valid_hooks;
98186
98187 - if (copy_to_user(user, &tmp, *len) != 0) {
98188 + if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
98189 ret = -EFAULT;
98190 break;
98191 }
98192 @@ -2341,7 +2341,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
98193 tmp.entries_size = t->table->entries_size;
98194 tmp.valid_hooks = t->table->valid_hooks;
98195
98196 - if (copy_to_user(user, &tmp, *len) != 0) {
98197 + if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
98198 ret = -EFAULT;
98199 break;
98200 }
98201 diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
98202 index 0f45522..dab651f 100644
98203 --- a/net/caif/cfctrl.c
98204 +++ b/net/caif/cfctrl.c
98205 @@ -10,6 +10,7 @@
98206 #include <linux/spinlock.h>
98207 #include <linux/slab.h>
98208 #include <linux/pkt_sched.h>
98209 +#include <linux/sched.h>
98210 #include <net/caif/caif_layer.h>
98211 #include <net/caif/cfpkt.h>
98212 #include <net/caif/cfctrl.h>
98213 @@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
98214 memset(&dev_info, 0, sizeof(dev_info));
98215 dev_info.id = 0xff;
98216 cfsrvl_init(&this->serv, 0, &dev_info, false);
98217 - atomic_set(&this->req_seq_no, 1);
98218 - atomic_set(&this->rsp_seq_no, 1);
98219 + atomic_set_unchecked(&this->req_seq_no, 1);
98220 + atomic_set_unchecked(&this->rsp_seq_no, 1);
98221 this->serv.layer.receive = cfctrl_recv;
98222 sprintf(this->serv.layer.name, "ctrl");
98223 this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
98224 @@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
98225 struct cfctrl_request_info *req)
98226 {
98227 spin_lock_bh(&ctrl->info_list_lock);
98228 - atomic_inc(&ctrl->req_seq_no);
98229 - req->sequence_no = atomic_read(&ctrl->req_seq_no);
98230 + atomic_inc_unchecked(&ctrl->req_seq_no);
98231 + req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
98232 list_add_tail(&req->list, &ctrl->list);
98233 spin_unlock_bh(&ctrl->info_list_lock);
98234 }
98235 @@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
98236 if (p != first)
98237 pr_warn("Requests are not received in order\n");
98238
98239 - atomic_set(&ctrl->rsp_seq_no,
98240 + atomic_set_unchecked(&ctrl->rsp_seq_no,
98241 p->sequence_no);
98242 list_del(&p->list);
98243 goto out;
98244 diff --git a/net/can/af_can.c b/net/can/af_can.c
98245 index a27f8aa..67174a3 100644
98246 --- a/net/can/af_can.c
98247 +++ b/net/can/af_can.c
98248 @@ -863,7 +863,7 @@ static const struct net_proto_family can_family_ops = {
98249 };
98250
98251 /* notifier block for netdevice event */
98252 -static struct notifier_block can_netdev_notifier __read_mostly = {
98253 +static struct notifier_block can_netdev_notifier = {
98254 .notifier_call = can_notifier,
98255 };
98256
98257 diff --git a/net/can/bcm.c b/net/can/bcm.c
98258 index dcb75c0..24b1b43 100644
98259 --- a/net/can/bcm.c
98260 +++ b/net/can/bcm.c
98261 @@ -1624,7 +1624,7 @@ static int __init bcm_module_init(void)
98262 }
98263
98264 /* create /proc/net/can-bcm directory */
98265 - proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
98266 + proc_dir = proc_mkdir_restrict("can-bcm", init_net.proc_net);
98267 return 0;
98268 }
98269
98270 diff --git a/net/can/gw.c b/net/can/gw.c
98271 index 050a211..bb9fe33 100644
98272 --- a/net/can/gw.c
98273 +++ b/net/can/gw.c
98274 @@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
98275 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
98276
98277 static HLIST_HEAD(cgw_list);
98278 -static struct notifier_block notifier;
98279
98280 static struct kmem_cache *cgw_cache __read_mostly;
98281
98282 @@ -947,6 +946,10 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
98283 return err;
98284 }
98285
98286 +static struct notifier_block notifier = {
98287 + .notifier_call = cgw_notifier
98288 +};
98289 +
98290 static __init int cgw_module_init(void)
98291 {
98292 /* sanitize given module parameter */
98293 @@ -962,7 +965,6 @@ static __init int cgw_module_init(void)
98294 return -ENOMEM;
98295
98296 /* set notifier */
98297 - notifier.notifier_call = cgw_notifier;
98298 register_netdevice_notifier(&notifier);
98299
98300 if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
98301 diff --git a/net/can/proc.c b/net/can/proc.c
98302 index b543470..d2ddae2 100644
98303 --- a/net/can/proc.c
98304 +++ b/net/can/proc.c
98305 @@ -468,7 +468,7 @@ static void can_remove_proc_readentry(const char *name)
98306 void can_init_proc(void)
98307 {
98308 /* create /proc/net/can directory */
98309 - can_dir = proc_mkdir("can", init_net.proc_net);
98310 + can_dir = proc_mkdir_restrict("can", init_net.proc_net);
98311
98312 if (!can_dir) {
98313 printk(KERN_INFO "can: failed to create /proc/net/can . "
98314 diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
98315 index 1948d59..9e854d5 100644
98316 --- a/net/ceph/messenger.c
98317 +++ b/net/ceph/messenger.c
98318 @@ -187,7 +187,7 @@ static void con_fault(struct ceph_connection *con);
98319 #define MAX_ADDR_STR_LEN 64 /* 54 is enough */
98320
98321 static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
98322 -static atomic_t addr_str_seq = ATOMIC_INIT(0);
98323 +static atomic_unchecked_t addr_str_seq = ATOMIC_INIT(0);
98324
98325 static struct page *zero_page; /* used in certain error cases */
98326
98327 @@ -198,7 +198,7 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss)
98328 struct sockaddr_in *in4 = (struct sockaddr_in *) ss;
98329 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) ss;
98330
98331 - i = atomic_inc_return(&addr_str_seq) & ADDR_STR_COUNT_MASK;
98332 + i = atomic_inc_return_unchecked(&addr_str_seq) & ADDR_STR_COUNT_MASK;
98333 s = addr_str[i];
98334
98335 switch (ss->ss_family) {
98336 diff --git a/net/compat.c b/net/compat.c
98337 index 9a76eaf..5b8ccfd 100644
98338 --- a/net/compat.c
98339 +++ b/net/compat.c
98340 @@ -73,9 +73,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
98341 return -EFAULT;
98342 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
98343 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
98344 - kmsg->msg_name = compat_ptr(tmp1);
98345 - kmsg->msg_iov = compat_ptr(tmp2);
98346 - kmsg->msg_control = compat_ptr(tmp3);
98347 + kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1);
98348 + kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2);
98349 + kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3);
98350 return 0;
98351 }
98352
98353 @@ -87,7 +87,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
98354
98355 if (kern_msg->msg_namelen) {
98356 if (mode == VERIFY_READ) {
98357 - int err = move_addr_to_kernel(kern_msg->msg_name,
98358 + int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name,
98359 kern_msg->msg_namelen,
98360 kern_address);
98361 if (err < 0)
98362 @@ -99,7 +99,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
98363 kern_msg->msg_name = NULL;
98364
98365 tot_len = iov_from_user_compat_to_kern(kern_iov,
98366 - (struct compat_iovec __user *)kern_msg->msg_iov,
98367 + (struct compat_iovec __force_user *)kern_msg->msg_iov,
98368 kern_msg->msg_iovlen);
98369 if (tot_len >= 0)
98370 kern_msg->msg_iov = kern_iov;
98371 @@ -119,20 +119,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
98372
98373 #define CMSG_COMPAT_FIRSTHDR(msg) \
98374 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
98375 - (struct compat_cmsghdr __user *)((msg)->msg_control) : \
98376 + (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \
98377 (struct compat_cmsghdr __user *)NULL)
98378
98379 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
98380 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
98381 (ucmlen) <= (unsigned long) \
98382 ((mhdr)->msg_controllen - \
98383 - ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
98384 + ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
98385
98386 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
98387 struct compat_cmsghdr __user *cmsg, int cmsg_len)
98388 {
98389 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
98390 - if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
98391 + if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
98392 msg->msg_controllen)
98393 return NULL;
98394 return (struct compat_cmsghdr __user *)ptr;
98395 @@ -222,7 +222,7 @@ Efault:
98396
98397 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
98398 {
98399 - struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
98400 + struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
98401 struct compat_cmsghdr cmhdr;
98402 struct compat_timeval ctv;
98403 struct compat_timespec cts[3];
98404 @@ -278,7 +278,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
98405
98406 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
98407 {
98408 - struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
98409 + struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
98410 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
98411 int fdnum = scm->fp->count;
98412 struct file **fp = scm->fp->fp;
98413 @@ -366,7 +366,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
98414 return -EFAULT;
98415 old_fs = get_fs();
98416 set_fs(KERNEL_DS);
98417 - err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
98418 + err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
98419 set_fs(old_fs);
98420
98421 return err;
98422 @@ -427,7 +427,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
98423 len = sizeof(ktime);
98424 old_fs = get_fs();
98425 set_fs(KERNEL_DS);
98426 - err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
98427 + err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
98428 set_fs(old_fs);
98429
98430 if (!err) {
98431 @@ -570,7 +570,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
98432 case MCAST_JOIN_GROUP:
98433 case MCAST_LEAVE_GROUP:
98434 {
98435 - struct compat_group_req __user *gr32 = (void *)optval;
98436 + struct compat_group_req __user *gr32 = (void __user *)optval;
98437 struct group_req __user *kgr =
98438 compat_alloc_user_space(sizeof(struct group_req));
98439 u32 interface;
98440 @@ -591,7 +591,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
98441 case MCAST_BLOCK_SOURCE:
98442 case MCAST_UNBLOCK_SOURCE:
98443 {
98444 - struct compat_group_source_req __user *gsr32 = (void *)optval;
98445 + struct compat_group_source_req __user *gsr32 = (void __user *)optval;
98446 struct group_source_req __user *kgsr = compat_alloc_user_space(
98447 sizeof(struct group_source_req));
98448 u32 interface;
98449 @@ -612,7 +612,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
98450 }
98451 case MCAST_MSFILTER:
98452 {
98453 - struct compat_group_filter __user *gf32 = (void *)optval;
98454 + struct compat_group_filter __user *gf32 = (void __user *)optval;
98455 struct group_filter __user *kgf;
98456 u32 interface, fmode, numsrc;
98457
98458 @@ -650,7 +650,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
98459 char __user *optval, int __user *optlen,
98460 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
98461 {
98462 - struct compat_group_filter __user *gf32 = (void *)optval;
98463 + struct compat_group_filter __user *gf32 = (void __user *)optval;
98464 struct group_filter __user *kgf;
98465 int __user *koptlen;
98466 u32 interface, fmode, numsrc;
98467 @@ -803,7 +803,7 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
98468
98469 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
98470 return -EINVAL;
98471 - if (copy_from_user(a, args, nas[call]))
98472 + if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
98473 return -EFAULT;
98474 a0 = a[0];
98475 a1 = a[1];
98476 diff --git a/net/core/datagram.c b/net/core/datagram.c
98477 index a16ed7b..eb44d17 100644
98478 --- a/net/core/datagram.c
98479 +++ b/net/core/datagram.c
98480 @@ -301,7 +301,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
98481 }
98482
98483 kfree_skb(skb);
98484 - atomic_inc(&sk->sk_drops);
98485 + atomic_inc_unchecked(&sk->sk_drops);
98486 sk_mem_reclaim_partial(sk);
98487
98488 return err;
98489 diff --git a/net/core/dev.c b/net/core/dev.c
98490 index a30bef1..51d3e33 100644
98491 --- a/net/core/dev.c
98492 +++ b/net/core/dev.c
98493 @@ -1683,14 +1683,14 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
98494 {
98495 if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
98496 if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
98497 - atomic_long_inc(&dev->rx_dropped);
98498 + atomic_long_inc_unchecked(&dev->rx_dropped);
98499 kfree_skb(skb);
98500 return NET_RX_DROP;
98501 }
98502 }
98503
98504 if (unlikely(!is_skb_forwardable(dev, skb))) {
98505 - atomic_long_inc(&dev->rx_dropped);
98506 + atomic_long_inc_unchecked(&dev->rx_dropped);
98507 kfree_skb(skb);
98508 return NET_RX_DROP;
98509 }
98510 @@ -2463,7 +2463,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
98511
98512 struct dev_gso_cb {
98513 void (*destructor)(struct sk_buff *skb);
98514 -};
98515 +} __no_const;
98516
98517 #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
98518
98519 @@ -2893,7 +2893,7 @@ recursion_alert:
98520 rc = -ENETDOWN;
98521 rcu_read_unlock_bh();
98522
98523 - atomic_long_inc(&dev->tx_dropped);
98524 + atomic_long_inc_unchecked(&dev->tx_dropped);
98525 kfree_skb(skb);
98526 return rc;
98527 out:
98528 @@ -3237,7 +3237,7 @@ enqueue:
98529
98530 local_irq_restore(flags);
98531
98532 - atomic_long_inc(&skb->dev->rx_dropped);
98533 + atomic_long_inc_unchecked(&skb->dev->rx_dropped);
98534 kfree_skb(skb);
98535 return NET_RX_DROP;
98536 }
98537 @@ -3314,7 +3314,7 @@ int netif_rx_ni(struct sk_buff *skb)
98538 }
98539 EXPORT_SYMBOL(netif_rx_ni);
98540
98541 -static void net_tx_action(struct softirq_action *h)
98542 +static __latent_entropy void net_tx_action(void)
98543 {
98544 struct softnet_data *sd = &__get_cpu_var(softnet_data);
98545
98546 @@ -3647,7 +3647,7 @@ ncls:
98547 ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
98548 } else {
98549 drop:
98550 - atomic_long_inc(&skb->dev->rx_dropped);
98551 + atomic_long_inc_unchecked(&skb->dev->rx_dropped);
98552 kfree_skb(skb);
98553 /* Jamal, now you will not able to escape explaining
98554 * me how you were going to use this. :-)
98555 @@ -4366,7 +4366,7 @@ void netif_napi_del(struct napi_struct *napi)
98556 }
98557 EXPORT_SYMBOL(netif_napi_del);
98558
98559 -static void net_rx_action(struct softirq_action *h)
98560 +static __latent_entropy void net_rx_action(void)
98561 {
98562 struct softnet_data *sd = &__get_cpu_var(softnet_data);
98563 unsigned long time_limit = jiffies + 2;
98564 @@ -6366,8 +6366,8 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
98565 } else {
98566 netdev_stats_to_stats64(storage, &dev->stats);
98567 }
98568 - storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
98569 - storage->tx_dropped += atomic_long_read(&dev->tx_dropped);
98570 + storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
98571 + storage->tx_dropped += atomic_long_read_unchecked(&dev->tx_dropped);
98572 return storage;
98573 }
98574 EXPORT_SYMBOL(dev_get_stats);
98575 diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
98576 index cf999e0..c59a975 100644
98577 --- a/net/core/dev_ioctl.c
98578 +++ b/net/core/dev_ioctl.c
98579 @@ -366,9 +366,13 @@ void dev_load(struct net *net, const char *name)
98580 if (no_module && capable(CAP_NET_ADMIN))
98581 no_module = request_module("netdev-%s", name);
98582 if (no_module && capable(CAP_SYS_MODULE)) {
98583 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
98584 + ___request_module(true, "grsec_modharden_netdev", "%s", name);
98585 +#else
98586 if (!request_module("%s", name))
98587 pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
98588 name);
98589 +#endif
98590 }
98591 }
98592 EXPORT_SYMBOL(dev_load);
98593 diff --git a/net/core/dst.c b/net/core/dst.c
98594 index 80d6286..a028409 100644
98595 --- a/net/core/dst.c
98596 +++ b/net/core/dst.c
98597 @@ -269,6 +269,15 @@ again:
98598 }
98599 EXPORT_SYMBOL(dst_destroy);
98600
98601 +static void dst_destroy_rcu(struct rcu_head *head)
98602 +{
98603 + struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);
98604 +
98605 + dst = dst_destroy(dst);
98606 + if (dst)
98607 + __dst_free(dst);
98608 +}
98609 +
98610 void dst_release(struct dst_entry *dst)
98611 {
98612 if (dst) {
98613 @@ -276,11 +285,8 @@ void dst_release(struct dst_entry *dst)
98614
98615 newrefcnt = atomic_dec_return(&dst->__refcnt);
98616 WARN_ON(newrefcnt < 0);
98617 - if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt) {
98618 - dst = dst_destroy(dst);
98619 - if (dst)
98620 - __dst_free(dst);
98621 - }
98622 + if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt)
98623 + call_rcu(&dst->rcu_head, dst_destroy_rcu);
98624 }
98625 }
98626 EXPORT_SYMBOL(dst_release);
98627 diff --git a/net/core/filter.c b/net/core/filter.c
98628 index 4aec7b9..5cf605c 100644
98629 --- a/net/core/filter.c
98630 +++ b/net/core/filter.c
98631 @@ -1121,7 +1121,11 @@ do_pass:
98632 break;
98633
98634 default:
98635 - goto err;
98636 + WARN(1, KERN_ALERT "Unknown sock filter code:%u jt:%u tf:%u k:%u\n",
98637 + fp->code, fp->jt, fp->jf, fp->k);
98638 + kfree(addrs);
98639 + BUG();
98640 + return -EINVAL;
98641 }
98642
98643 insn++;
98644 @@ -1170,7 +1174,7 @@ static int check_load_and_stores(struct sock_filter *filter, int flen)
98645 u16 *masks, memvalid = 0; /* one bit per cell, 16 cells */
98646 int pc, ret = 0;
98647
98648 - BUILD_BUG_ON(BPF_MEMWORDS > 16);
98649 + BUILD_BUG_ON(BPF_MEMWORDS != 16);
98650 masks = kmalloc(flen * sizeof(*masks), GFP_KERNEL);
98651 if (!masks)
98652 return -ENOMEM;
98653 @@ -1605,7 +1609,7 @@ int sk_unattached_filter_create(struct sk_filter **pfp,
98654 if (!fp)
98655 return -ENOMEM;
98656
98657 - memcpy(fp->insns, fprog->filter, fsize);
98658 + memcpy(fp->insns, (void __force_kernel *)fprog->filter, fsize);
98659
98660 atomic_set(&fp->refcnt, 1);
98661 fp->len = fprog->len;
98662 diff --git a/net/core/flow.c b/net/core/flow.c
98663 index a0348fd..6951c76 100644
98664 --- a/net/core/flow.c
98665 +++ b/net/core/flow.c
98666 @@ -65,7 +65,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
98667 static int flow_entry_valid(struct flow_cache_entry *fle,
98668 struct netns_xfrm *xfrm)
98669 {
98670 - if (atomic_read(&xfrm->flow_cache_genid) != fle->genid)
98671 + if (atomic_read_unchecked(&xfrm->flow_cache_genid) != fle->genid)
98672 return 0;
98673 if (fle->object && !fle->object->ops->check(fle->object))
98674 return 0;
98675 @@ -242,7 +242,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
98676 hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
98677 fcp->hash_count++;
98678 }
98679 - } else if (likely(fle->genid == atomic_read(&net->xfrm.flow_cache_genid))) {
98680 + } else if (likely(fle->genid == atomic_read_unchecked(&net->xfrm.flow_cache_genid))) {
98681 flo = fle->object;
98682 if (!flo)
98683 goto ret_object;
98684 @@ -263,7 +263,7 @@ nocache:
98685 }
98686 flo = resolver(net, key, family, dir, flo, ctx);
98687 if (fle) {
98688 - fle->genid = atomic_read(&net->xfrm.flow_cache_genid);
98689 + fle->genid = atomic_read_unchecked(&net->xfrm.flow_cache_genid);
98690 if (!IS_ERR(flo))
98691 fle->object = flo;
98692 else
98693 diff --git a/net/core/iovec.c b/net/core/iovec.c
98694 index b618694..192bbba 100644
98695 --- a/net/core/iovec.c
98696 +++ b/net/core/iovec.c
98697 @@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
98698 if (m->msg_namelen) {
98699 if (mode == VERIFY_READ) {
98700 void __user *namep;
98701 - namep = (void __user __force *) m->msg_name;
98702 + namep = (void __force_user *) m->msg_name;
98703 err = move_addr_to_kernel(namep, m->msg_namelen,
98704 address);
98705 if (err < 0)
98706 @@ -55,7 +55,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
98707 }
98708
98709 size = m->msg_iovlen * sizeof(struct iovec);
98710 - if (copy_from_user(iov, (void __user __force *) m->msg_iov, size))
98711 + if (copy_from_user(iov, (void __force_user *) m->msg_iov, size))
98712 return -EFAULT;
98713
98714 m->msg_iov = iov;
98715 diff --git a/net/core/neighbour.c b/net/core/neighbour.c
98716 index 32d872e..487e769 100644
98717 --- a/net/core/neighbour.c
98718 +++ b/net/core/neighbour.c
98719 @@ -2825,7 +2825,7 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
98720 void __user *buffer, size_t *lenp, loff_t *ppos)
98721 {
98722 int size, ret;
98723 - struct ctl_table tmp = *ctl;
98724 + ctl_table_no_const tmp = *ctl;
98725
98726 tmp.extra1 = &zero;
98727 tmp.extra2 = &unres_qlen_max;
98728 @@ -2887,7 +2887,7 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
98729 void __user *buffer,
98730 size_t *lenp, loff_t *ppos)
98731 {
98732 - struct ctl_table tmp = *ctl;
98733 + ctl_table_no_const tmp = *ctl;
98734 int ret;
98735
98736 tmp.extra1 = &zero;
98737 @@ -3059,11 +3059,12 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
98738 memset(&t->neigh_vars[NEIGH_VAR_GC_INTERVAL], 0,
98739 sizeof(t->neigh_vars[NEIGH_VAR_GC_INTERVAL]));
98740 } else {
98741 + struct neigh_table *ntable = container_of(p, struct neigh_table, parms);
98742 dev_name_source = "default";
98743 - t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = (int *)(p + 1);
98744 - t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = (int *)(p + 1) + 1;
98745 - t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = (int *)(p + 1) + 2;
98746 - t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = (int *)(p + 1) + 3;
98747 + t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = &ntable->gc_interval;
98748 + t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = &ntable->gc_thresh1;
98749 + t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = &ntable->gc_thresh2;
98750 + t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = &ntable->gc_thresh3;
98751 }
98752
98753 if (handler) {
98754 diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
98755 index 2bf8329..2eb1423 100644
98756 --- a/net/core/net-procfs.c
98757 +++ b/net/core/net-procfs.c
98758 @@ -79,7 +79,13 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
98759 struct rtnl_link_stats64 temp;
98760 const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
98761
98762 - seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
98763 + if (gr_proc_is_restricted())
98764 + seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
98765 + "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
98766 + dev->name, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL,
98767 + 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL);
98768 + else
98769 + seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
98770 "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
98771 dev->name, stats->rx_bytes, stats->rx_packets,
98772 stats->rx_errors,
98773 @@ -166,7 +172,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
98774 return 0;
98775 }
98776
98777 -static const struct seq_operations dev_seq_ops = {
98778 +const struct seq_operations dev_seq_ops = {
98779 .start = dev_seq_start,
98780 .next = dev_seq_next,
98781 .stop = dev_seq_stop,
98782 @@ -196,7 +202,7 @@ static const struct seq_operations softnet_seq_ops = {
98783
98784 static int softnet_seq_open(struct inode *inode, struct file *file)
98785 {
98786 - return seq_open(file, &softnet_seq_ops);
98787 + return seq_open_restrict(file, &softnet_seq_ops);
98788 }
98789
98790 static const struct file_operations softnet_seq_fops = {
98791 @@ -283,8 +289,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
98792 else
98793 seq_printf(seq, "%04x", ntohs(pt->type));
98794
98795 +#ifdef CONFIG_GRKERNSEC_HIDESYM
98796 + seq_printf(seq, " %-8s %pf\n",
98797 + pt->dev ? pt->dev->name : "", NULL);
98798 +#else
98799 seq_printf(seq, " %-8s %pf\n",
98800 pt->dev ? pt->dev->name : "", pt->func);
98801 +#endif
98802 }
98803
98804 return 0;
98805 diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
98806 index 1cac29e..fb482f3 100644
98807 --- a/net/core/net-sysfs.c
98808 +++ b/net/core/net-sysfs.c
98809 @@ -259,7 +259,7 @@ static ssize_t carrier_changes_show(struct device *dev,
98810 {
98811 struct net_device *netdev = to_net_dev(dev);
98812 return sprintf(buf, fmt_dec,
98813 - atomic_read(&netdev->carrier_changes));
98814 + atomic_read_unchecked(&netdev->carrier_changes));
98815 }
98816 static DEVICE_ATTR_RO(carrier_changes);
98817
98818 diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
98819 index 7c8ffd9..0cb3687 100644
98820 --- a/net/core/net_namespace.c
98821 +++ b/net/core/net_namespace.c
98822 @@ -443,7 +443,7 @@ static int __register_pernet_operations(struct list_head *list,
98823 int error;
98824 LIST_HEAD(net_exit_list);
98825
98826 - list_add_tail(&ops->list, list);
98827 + pax_list_add_tail((struct list_head *)&ops->list, list);
98828 if (ops->init || (ops->id && ops->size)) {
98829 for_each_net(net) {
98830 error = ops_init(ops, net);
98831 @@ -456,7 +456,7 @@ static int __register_pernet_operations(struct list_head *list,
98832
98833 out_undo:
98834 /* If I have an error cleanup all namespaces I initialized */
98835 - list_del(&ops->list);
98836 + pax_list_del((struct list_head *)&ops->list);
98837 ops_exit_list(ops, &net_exit_list);
98838 ops_free_list(ops, &net_exit_list);
98839 return error;
98840 @@ -467,7 +467,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
98841 struct net *net;
98842 LIST_HEAD(net_exit_list);
98843
98844 - list_del(&ops->list);
98845 + pax_list_del((struct list_head *)&ops->list);
98846 for_each_net(net)
98847 list_add_tail(&net->exit_list, &net_exit_list);
98848 ops_exit_list(ops, &net_exit_list);
98849 @@ -601,7 +601,7 @@ int register_pernet_device(struct pernet_operations *ops)
98850 mutex_lock(&net_mutex);
98851 error = register_pernet_operations(&pernet_list, ops);
98852 if (!error && (first_device == &pernet_list))
98853 - first_device = &ops->list;
98854 + first_device = (struct list_head *)&ops->list;
98855 mutex_unlock(&net_mutex);
98856 return error;
98857 }
98858 diff --git a/net/core/netpoll.c b/net/core/netpoll.c
98859 index e33937f..b2b4981 100644
98860 --- a/net/core/netpoll.c
98861 +++ b/net/core/netpoll.c
98862 @@ -382,7 +382,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
98863 struct udphdr *udph;
98864 struct iphdr *iph;
98865 struct ethhdr *eth;
98866 - static atomic_t ip_ident;
98867 + static atomic_unchecked_t ip_ident;
98868 struct ipv6hdr *ip6h;
98869
98870 udp_len = len + sizeof(*udph);
98871 @@ -453,7 +453,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
98872 put_unaligned(0x45, (unsigned char *)iph);
98873 iph->tos = 0;
98874 put_unaligned(htons(ip_len), &(iph->tot_len));
98875 - iph->id = htons(atomic_inc_return(&ip_ident));
98876 + iph->id = htons(atomic_inc_return_unchecked(&ip_ident));
98877 iph->frag_off = 0;
98878 iph->ttl = 64;
98879 iph->protocol = IPPROTO_UDP;
98880 diff --git a/net/core/pktgen.c b/net/core/pktgen.c
98881 index 0304f98..ddfead6 100644
98882 --- a/net/core/pktgen.c
98883 +++ b/net/core/pktgen.c
98884 @@ -3725,7 +3725,7 @@ static int __net_init pg_net_init(struct net *net)
98885 pn->net = net;
98886 INIT_LIST_HEAD(&pn->pktgen_threads);
98887 pn->pktgen_exiting = false;
98888 - pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
98889 + pn->proc_dir = proc_mkdir_restrict(PG_PROC_DIR, pn->net->proc_net);
98890 if (!pn->proc_dir) {
98891 pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
98892 return -ENODEV;
98893 diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
98894 index 1999ed8..1e6e58a 100644
98895 --- a/net/core/rtnetlink.c
98896 +++ b/net/core/rtnetlink.c
98897 @@ -58,7 +58,7 @@ struct rtnl_link {
98898 rtnl_doit_func doit;
98899 rtnl_dumpit_func dumpit;
98900 rtnl_calcit_func calcit;
98901 -};
98902 +} __no_const;
98903
98904 static DEFINE_MUTEX(rtnl_mutex);
98905
98906 @@ -299,10 +299,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
98907 if (rtnl_link_ops_get(ops->kind))
98908 return -EEXIST;
98909
98910 - if (!ops->dellink)
98911 - ops->dellink = unregister_netdevice_queue;
98912 + if (!ops->dellink) {
98913 + pax_open_kernel();
98914 + *(void **)&ops->dellink = unregister_netdevice_queue;
98915 + pax_close_kernel();
98916 + }
98917
98918 - list_add_tail(&ops->list, &link_ops);
98919 + pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
98920 return 0;
98921 }
98922 EXPORT_SYMBOL_GPL(__rtnl_link_register);
98923 @@ -349,7 +352,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
98924 for_each_net(net) {
98925 __rtnl_kill_links(net, ops);
98926 }
98927 - list_del(&ops->list);
98928 + pax_list_del((struct list_head *)&ops->list);
98929 }
98930 EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
98931
98932 @@ -1008,7 +1011,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
98933 (dev->ifalias &&
98934 nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
98935 nla_put_u32(skb, IFLA_CARRIER_CHANGES,
98936 - atomic_read(&dev->carrier_changes)))
98937 + atomic_read_unchecked(&dev->carrier_changes)))
98938 goto nla_put_failure;
98939
98940 if (1) {
98941 diff --git a/net/core/scm.c b/net/core/scm.c
98942 index b442e7e..6f5b5a2 100644
98943 --- a/net/core/scm.c
98944 +++ b/net/core/scm.c
98945 @@ -210,7 +210,7 @@ EXPORT_SYMBOL(__scm_send);
98946 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
98947 {
98948 struct cmsghdr __user *cm
98949 - = (__force struct cmsghdr __user *)msg->msg_control;
98950 + = (struct cmsghdr __force_user *)msg->msg_control;
98951 struct cmsghdr cmhdr;
98952 int cmlen = CMSG_LEN(len);
98953 int err;
98954 @@ -233,7 +233,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
98955 err = -EFAULT;
98956 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
98957 goto out;
98958 - if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
98959 + if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
98960 goto out;
98961 cmlen = CMSG_SPACE(len);
98962 if (msg->msg_controllen < cmlen)
98963 @@ -249,7 +249,7 @@ EXPORT_SYMBOL(put_cmsg);
98964 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
98965 {
98966 struct cmsghdr __user *cm
98967 - = (__force struct cmsghdr __user*)msg->msg_control;
98968 + = (struct cmsghdr __force_user *)msg->msg_control;
98969
98970 int fdmax = 0;
98971 int fdnum = scm->fp->count;
98972 @@ -269,7 +269,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
98973 if (fdnum < fdmax)
98974 fdmax = fdnum;
98975
98976 - for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
98977 + for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
98978 i++, cmfptr++)
98979 {
98980 struct socket *sock;
98981 diff --git a/net/core/skbuff.c b/net/core/skbuff.c
98982 index 8383b2b..6397efb 100644
98983 --- a/net/core/skbuff.c
98984 +++ b/net/core/skbuff.c
98985 @@ -2003,7 +2003,7 @@ EXPORT_SYMBOL(__skb_checksum);
98986 __wsum skb_checksum(const struct sk_buff *skb, int offset,
98987 int len, __wsum csum)
98988 {
98989 - const struct skb_checksum_ops ops = {
98990 + static const struct skb_checksum_ops ops = {
98991 .update = csum_partial_ext,
98992 .combine = csum_block_add_ext,
98993 };
98994 @@ -3220,13 +3220,15 @@ void __init skb_init(void)
98995 skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
98996 sizeof(struct sk_buff),
98997 0,
98998 - SLAB_HWCACHE_ALIGN|SLAB_PANIC,
98999 + SLAB_HWCACHE_ALIGN|SLAB_PANIC|
99000 + SLAB_NO_SANITIZE,
99001 NULL);
99002 skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
99003 (2*sizeof(struct sk_buff)) +
99004 sizeof(atomic_t),
99005 0,
99006 - SLAB_HWCACHE_ALIGN|SLAB_PANIC,
99007 + SLAB_HWCACHE_ALIGN|SLAB_PANIC|
99008 + SLAB_NO_SANITIZE,
99009 NULL);
99010 }
99011
99012 diff --git a/net/core/sock.c b/net/core/sock.c
99013 index 664ee42..aaf9e6e 100644
99014 --- a/net/core/sock.c
99015 +++ b/net/core/sock.c
99016 @@ -442,7 +442,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
99017 struct sk_buff_head *list = &sk->sk_receive_queue;
99018
99019 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
99020 - atomic_inc(&sk->sk_drops);
99021 + atomic_inc_unchecked(&sk->sk_drops);
99022 trace_sock_rcvqueue_full(sk, skb);
99023 return -ENOMEM;
99024 }
99025 @@ -452,7 +452,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
99026 return err;
99027
99028 if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
99029 - atomic_inc(&sk->sk_drops);
99030 + atomic_inc_unchecked(&sk->sk_drops);
99031 return -ENOBUFS;
99032 }
99033
99034 @@ -472,7 +472,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
99035 skb_dst_force(skb);
99036
99037 spin_lock_irqsave(&list->lock, flags);
99038 - skb->dropcount = atomic_read(&sk->sk_drops);
99039 + skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
99040 __skb_queue_tail(list, skb);
99041 spin_unlock_irqrestore(&list->lock, flags);
99042
99043 @@ -492,7 +492,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
99044 skb->dev = NULL;
99045
99046 if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
99047 - atomic_inc(&sk->sk_drops);
99048 + atomic_inc_unchecked(&sk->sk_drops);
99049 goto discard_and_relse;
99050 }
99051 if (nested)
99052 @@ -510,7 +510,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
99053 mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
99054 } else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
99055 bh_unlock_sock(sk);
99056 - atomic_inc(&sk->sk_drops);
99057 + atomic_inc_unchecked(&sk->sk_drops);
99058 goto discard_and_relse;
99059 }
99060
99061 @@ -998,12 +998,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
99062 struct timeval tm;
99063 } v;
99064
99065 - int lv = sizeof(int);
99066 - int len;
99067 + unsigned int lv = sizeof(int);
99068 + unsigned int len;
99069
99070 if (get_user(len, optlen))
99071 return -EFAULT;
99072 - if (len < 0)
99073 + if (len > INT_MAX)
99074 return -EINVAL;
99075
99076 memset(&v, 0, sizeof(v));
99077 @@ -1155,11 +1155,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
99078
99079 case SO_PEERNAME:
99080 {
99081 - char address[128];
99082 + char address[_K_SS_MAXSIZE];
99083
99084 if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
99085 return -ENOTCONN;
99086 - if (lv < len)
99087 + if (lv < len || sizeof address < len)
99088 return -EINVAL;
99089 if (copy_to_user(optval, address, len))
99090 return -EFAULT;
99091 @@ -1240,7 +1240,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
99092
99093 if (len > lv)
99094 len = lv;
99095 - if (copy_to_user(optval, &v, len))
99096 + if (len > sizeof(v) || copy_to_user(optval, &v, len))
99097 return -EFAULT;
99098 lenout:
99099 if (put_user(len, optlen))
99100 @@ -2375,7 +2375,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
99101 */
99102 smp_wmb();
99103 atomic_set(&sk->sk_refcnt, 1);
99104 - atomic_set(&sk->sk_drops, 0);
99105 + atomic_set_unchecked(&sk->sk_drops, 0);
99106 }
99107 EXPORT_SYMBOL(sock_init_data);
99108
99109 @@ -2503,6 +2503,7 @@ void sock_enable_timestamp(struct sock *sk, int flag)
99110 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
99111 int level, int type)
99112 {
99113 + struct sock_extended_err ee;
99114 struct sock_exterr_skb *serr;
99115 struct sk_buff *skb, *skb2;
99116 int copied, err;
99117 @@ -2524,7 +2525,8 @@ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
99118 sock_recv_timestamp(msg, sk, skb);
99119
99120 serr = SKB_EXT_ERR(skb);
99121 - put_cmsg(msg, level, type, sizeof(serr->ee), &serr->ee);
99122 + ee = serr->ee;
99123 + put_cmsg(msg, level, type, sizeof ee, &ee);
99124
99125 msg->msg_flags |= MSG_ERRQUEUE;
99126 err = copied;
99127 diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
99128 index a4216a4..1c07687 100644
99129 --- a/net/core/sock_diag.c
99130 +++ b/net/core/sock_diag.c
99131 @@ -9,26 +9,33 @@
99132 #include <linux/inet_diag.h>
99133 #include <linux/sock_diag.h>
99134
99135 -static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
99136 +static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
99137 static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
99138 static DEFINE_MUTEX(sock_diag_table_mutex);
99139
99140 int sock_diag_check_cookie(void *sk, __u32 *cookie)
99141 {
99142 +#ifndef CONFIG_GRKERNSEC_HIDESYM
99143 if ((cookie[0] != INET_DIAG_NOCOOKIE ||
99144 cookie[1] != INET_DIAG_NOCOOKIE) &&
99145 ((u32)(unsigned long)sk != cookie[0] ||
99146 (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
99147 return -ESTALE;
99148 else
99149 +#endif
99150 return 0;
99151 }
99152 EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
99153
99154 void sock_diag_save_cookie(void *sk, __u32 *cookie)
99155 {
99156 +#ifdef CONFIG_GRKERNSEC_HIDESYM
99157 + cookie[0] = 0;
99158 + cookie[1] = 0;
99159 +#else
99160 cookie[0] = (u32)(unsigned long)sk;
99161 cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
99162 +#endif
99163 }
99164 EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
99165
99166 @@ -110,8 +117,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
99167 mutex_lock(&sock_diag_table_mutex);
99168 if (sock_diag_handlers[hndl->family])
99169 err = -EBUSY;
99170 - else
99171 + else {
99172 + pax_open_kernel();
99173 sock_diag_handlers[hndl->family] = hndl;
99174 + pax_close_kernel();
99175 + }
99176 mutex_unlock(&sock_diag_table_mutex);
99177
99178 return err;
99179 @@ -127,7 +137,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
99180
99181 mutex_lock(&sock_diag_table_mutex);
99182 BUG_ON(sock_diag_handlers[family] != hnld);
99183 + pax_open_kernel();
99184 sock_diag_handlers[family] = NULL;
99185 + pax_close_kernel();
99186 mutex_unlock(&sock_diag_table_mutex);
99187 }
99188 EXPORT_SYMBOL_GPL(sock_diag_unregister);
99189 diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
99190 index cf9cd13..8b56af3 100644
99191 --- a/net/core/sysctl_net_core.c
99192 +++ b/net/core/sysctl_net_core.c
99193 @@ -32,7 +32,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
99194 {
99195 unsigned int orig_size, size;
99196 int ret, i;
99197 - struct ctl_table tmp = {
99198 + ctl_table_no_const tmp = {
99199 .data = &size,
99200 .maxlen = sizeof(size),
99201 .mode = table->mode
99202 @@ -200,7 +200,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
99203 void __user *buffer, size_t *lenp, loff_t *ppos)
99204 {
99205 char id[IFNAMSIZ];
99206 - struct ctl_table tbl = {
99207 + ctl_table_no_const tbl = {
99208 .data = id,
99209 .maxlen = IFNAMSIZ,
99210 };
99211 @@ -379,13 +379,12 @@ static struct ctl_table netns_core_table[] = {
99212
99213 static __net_init int sysctl_core_net_init(struct net *net)
99214 {
99215 - struct ctl_table *tbl;
99216 + ctl_table_no_const *tbl = NULL;
99217
99218 net->core.sysctl_somaxconn = SOMAXCONN;
99219
99220 - tbl = netns_core_table;
99221 if (!net_eq(net, &init_net)) {
99222 - tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
99223 + tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
99224 if (tbl == NULL)
99225 goto err_dup;
99226
99227 @@ -395,17 +394,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
99228 if (net->user_ns != &init_user_ns) {
99229 tbl[0].procname = NULL;
99230 }
99231 - }
99232 -
99233 - net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
99234 + net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
99235 + } else
99236 + net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
99237 if (net->core.sysctl_hdr == NULL)
99238 goto err_reg;
99239
99240 return 0;
99241
99242 err_reg:
99243 - if (tbl != netns_core_table)
99244 - kfree(tbl);
99245 + kfree(tbl);
99246 err_dup:
99247 return -ENOMEM;
99248 }
99249 @@ -420,7 +418,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
99250 kfree(tbl);
99251 }
99252
99253 -static __net_initdata struct pernet_operations sysctl_core_ops = {
99254 +static __net_initconst struct pernet_operations sysctl_core_ops = {
99255 .init = sysctl_core_net_init,
99256 .exit = sysctl_core_net_exit,
99257 };
99258 diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
99259 index 4c04848..f575934 100644
99260 --- a/net/decnet/af_decnet.c
99261 +++ b/net/decnet/af_decnet.c
99262 @@ -465,6 +465,7 @@ static struct proto dn_proto = {
99263 .sysctl_rmem = sysctl_decnet_rmem,
99264 .max_header = DN_MAX_NSP_DATA_HEADER + 64,
99265 .obj_size = sizeof(struct dn_sock),
99266 + .slab_flags = SLAB_USERCOPY,
99267 };
99268
99269 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
99270 diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
99271 index 3b726f3..1af6368 100644
99272 --- a/net/decnet/dn_dev.c
99273 +++ b/net/decnet/dn_dev.c
99274 @@ -200,7 +200,7 @@ static struct dn_dev_sysctl_table {
99275 .extra1 = &min_t3,
99276 .extra2 = &max_t3
99277 },
99278 - {0}
99279 + { }
99280 },
99281 };
99282
99283 diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
99284 index 5325b54..a0d4d69 100644
99285 --- a/net/decnet/sysctl_net_decnet.c
99286 +++ b/net/decnet/sysctl_net_decnet.c
99287 @@ -174,7 +174,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write,
99288
99289 if (len > *lenp) len = *lenp;
99290
99291 - if (copy_to_user(buffer, addr, len))
99292 + if (len > sizeof addr || copy_to_user(buffer, addr, len))
99293 return -EFAULT;
99294
99295 *lenp = len;
99296 @@ -237,7 +237,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write,
99297
99298 if (len > *lenp) len = *lenp;
99299
99300 - if (copy_to_user(buffer, devname, len))
99301 + if (len > sizeof devname || copy_to_user(buffer, devname, len))
99302 return -EFAULT;
99303
99304 *lenp = len;
99305 diff --git a/net/ieee802154/reassembly.c b/net/ieee802154/reassembly.c
99306 index ef2d543..5b9b73f 100644
99307 --- a/net/ieee802154/reassembly.c
99308 +++ b/net/ieee802154/reassembly.c
99309 @@ -434,12 +434,11 @@ static struct ctl_table lowpan_frags_ctl_table[] = {
99310
99311 static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
99312 {
99313 - struct ctl_table *table;
99314 + ctl_table_no_const *table = NULL;
99315 struct ctl_table_header *hdr;
99316
99317 - table = lowpan_frags_ns_ctl_table;
99318 if (!net_eq(net, &init_net)) {
99319 - table = kmemdup(table, sizeof(lowpan_frags_ns_ctl_table),
99320 + table = kmemdup(lowpan_frags_ns_ctl_table, sizeof(lowpan_frags_ns_ctl_table),
99321 GFP_KERNEL);
99322 if (table == NULL)
99323 goto err_alloc;
99324 @@ -452,9 +451,9 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
99325 /* Don't export sysctls to unprivileged users */
99326 if (net->user_ns != &init_user_ns)
99327 table[0].procname = NULL;
99328 - }
99329 -
99330 - hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
99331 + hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
99332 + } else
99333 + hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", lowpan_frags_ns_ctl_table);
99334 if (hdr == NULL)
99335 goto err_reg;
99336
99337 @@ -462,8 +461,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
99338 return 0;
99339
99340 err_reg:
99341 - if (!net_eq(net, &init_net))
99342 - kfree(table);
99343 + kfree(table);
99344 err_alloc:
99345 return -ENOMEM;
99346 }
99347 diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
99348 index 6d6dd34..e5c9bec 100644
99349 --- a/net/ipv4/af_inet.c
99350 +++ b/net/ipv4/af_inet.c
99351 @@ -1736,13 +1736,9 @@ static int __init inet_init(void)
99352
99353 BUILD_BUG_ON(sizeof(struct inet_skb_parm) > FIELD_SIZEOF(struct sk_buff, cb));
99354
99355 - sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
99356 - if (!sysctl_local_reserved_ports)
99357 - goto out;
99358 -
99359 rc = proto_register(&tcp_prot, 1);
99360 if (rc)
99361 - goto out_free_reserved_ports;
99362 + goto out;
99363
99364 rc = proto_register(&udp_prot, 1);
99365 if (rc)
99366 @@ -1852,8 +1848,6 @@ out_unregister_udp_proto:
99367 proto_unregister(&udp_prot);
99368 out_unregister_tcp_proto:
99369 proto_unregister(&tcp_prot);
99370 -out_free_reserved_ports:
99371 - kfree(sysctl_local_reserved_ports);
99372 goto out;
99373 }
99374
99375 diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
99376 index bdbf68b..deb4759 100644
99377 --- a/net/ipv4/devinet.c
99378 +++ b/net/ipv4/devinet.c
99379 @@ -1543,7 +1543,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
99380 idx = 0;
99381 head = &net->dev_index_head[h];
99382 rcu_read_lock();
99383 - cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
99384 + cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
99385 net->dev_base_seq;
99386 hlist_for_each_entry_rcu(dev, head, index_hlist) {
99387 if (idx < s_idx)
99388 @@ -1861,7 +1861,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
99389 idx = 0;
99390 head = &net->dev_index_head[h];
99391 rcu_read_lock();
99392 - cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
99393 + cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
99394 net->dev_base_seq;
99395 hlist_for_each_entry_rcu(dev, head, index_hlist) {
99396 if (idx < s_idx)
99397 @@ -2096,7 +2096,7 @@ static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
99398 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
99399 DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
99400
99401 -static struct devinet_sysctl_table {
99402 +static const struct devinet_sysctl_table {
99403 struct ctl_table_header *sysctl_header;
99404 struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
99405 } devinet_sysctl = {
99406 @@ -2218,7 +2218,7 @@ static __net_init int devinet_init_net(struct net *net)
99407 int err;
99408 struct ipv4_devconf *all, *dflt;
99409 #ifdef CONFIG_SYSCTL
99410 - struct ctl_table *tbl = ctl_forward_entry;
99411 + ctl_table_no_const *tbl = NULL;
99412 struct ctl_table_header *forw_hdr;
99413 #endif
99414
99415 @@ -2236,7 +2236,7 @@ static __net_init int devinet_init_net(struct net *net)
99416 goto err_alloc_dflt;
99417
99418 #ifdef CONFIG_SYSCTL
99419 - tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
99420 + tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
99421 if (tbl == NULL)
99422 goto err_alloc_ctl;
99423
99424 @@ -2256,7 +2256,10 @@ static __net_init int devinet_init_net(struct net *net)
99425 goto err_reg_dflt;
99426
99427 err = -ENOMEM;
99428 - forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
99429 + if (!net_eq(net, &init_net))
99430 + forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
99431 + else
99432 + forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
99433 if (forw_hdr == NULL)
99434 goto err_reg_ctl;
99435 net->ipv4.forw_hdr = forw_hdr;
99436 @@ -2272,8 +2275,7 @@ err_reg_ctl:
99437 err_reg_dflt:
99438 __devinet_sysctl_unregister(all);
99439 err_reg_all:
99440 - if (tbl != ctl_forward_entry)
99441 - kfree(tbl);
99442 + kfree(tbl);
99443 err_alloc_ctl:
99444 #endif
99445 if (dflt != &ipv4_devconf_dflt)
99446 diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
99447 index 255aa99..45c78f8 100644
99448 --- a/net/ipv4/fib_frontend.c
99449 +++ b/net/ipv4/fib_frontend.c
99450 @@ -1015,12 +1015,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
99451 #ifdef CONFIG_IP_ROUTE_MULTIPATH
99452 fib_sync_up(dev);
99453 #endif
99454 - atomic_inc(&net->ipv4.dev_addr_genid);
99455 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
99456 rt_cache_flush(dev_net(dev));
99457 break;
99458 case NETDEV_DOWN:
99459 fib_del_ifaddr(ifa, NULL);
99460 - atomic_inc(&net->ipv4.dev_addr_genid);
99461 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
99462 if (ifa->ifa_dev->ifa_list == NULL) {
99463 /* Last address was deleted from this interface.
99464 * Disable IP.
99465 @@ -1058,7 +1058,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
99466 #ifdef CONFIG_IP_ROUTE_MULTIPATH
99467 fib_sync_up(dev);
99468 #endif
99469 - atomic_inc(&net->ipv4.dev_addr_genid);
99470 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
99471 rt_cache_flush(net);
99472 break;
99473 case NETDEV_DOWN:
99474 diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
99475 index b10cd43a..22327f9 100644
99476 --- a/net/ipv4/fib_semantics.c
99477 +++ b/net/ipv4/fib_semantics.c
99478 @@ -768,7 +768,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
99479 nh->nh_saddr = inet_select_addr(nh->nh_dev,
99480 nh->nh_gw,
99481 nh->nh_parent->fib_scope);
99482 - nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
99483 + nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
99484
99485 return nh->nh_saddr;
99486 }
99487 diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
99488 index a56b8e6..5be2a30 100644
99489 --- a/net/ipv4/inet_connection_sock.c
99490 +++ b/net/ipv4/inet_connection_sock.c
99491 @@ -29,7 +29,7 @@ const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n";
99492 EXPORT_SYMBOL(inet_csk_timer_bug_msg);
99493 #endif
99494
99495 -unsigned long *sysctl_local_reserved_ports;
99496 +unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
99497 EXPORT_SYMBOL(sysctl_local_reserved_ports);
99498
99499 void inet_get_local_port_range(struct net *net, int *low, int *high)
99500 diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
99501 index 8b9cf27..0d8d592 100644
99502 --- a/net/ipv4/inet_hashtables.c
99503 +++ b/net/ipv4/inet_hashtables.c
99504 @@ -18,6 +18,7 @@
99505 #include <linux/sched.h>
99506 #include <linux/slab.h>
99507 #include <linux/wait.h>
99508 +#include <linux/security.h>
99509
99510 #include <net/inet_connection_sock.h>
99511 #include <net/inet_hashtables.h>
99512 @@ -49,6 +50,8 @@ static unsigned int inet_sk_ehashfn(const struct sock *sk)
99513 return inet_ehashfn(net, laddr, lport, faddr, fport);
99514 }
99515
99516 +extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet);
99517 +
99518 /*
99519 * Allocate and initialize a new local port bind bucket.
99520 * The bindhash mutex for snum's hash chain must be held here.
99521 @@ -554,6 +557,8 @@ ok:
99522 twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
99523 spin_unlock(&head->lock);
99524
99525 + gr_update_task_in_ip_table(current, inet_sk(sk));
99526 +
99527 if (tw) {
99528 inet_twsk_deschedule(tw, death_row);
99529 while (twrefcnt) {
99530 diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
99531 index 48f4244..f56d83a 100644
99532 --- a/net/ipv4/inetpeer.c
99533 +++ b/net/ipv4/inetpeer.c
99534 @@ -496,8 +496,8 @@ relookup:
99535 if (p) {
99536 p->daddr = *daddr;
99537 atomic_set(&p->refcnt, 1);
99538 - atomic_set(&p->rid, 0);
99539 - atomic_set(&p->ip_id_count,
99540 + atomic_set_unchecked(&p->rid, 0);
99541 + atomic_set_unchecked(&p->ip_id_count,
99542 (daddr->family == AF_INET) ?
99543 secure_ip_id(daddr->addr.a4) :
99544 secure_ipv6_id(daddr->addr.a6));
99545 diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
99546 index ed32313..3762abe 100644
99547 --- a/net/ipv4/ip_fragment.c
99548 +++ b/net/ipv4/ip_fragment.c
99549 @@ -284,7 +284,7 @@ static inline int ip_frag_too_far(struct ipq *qp)
99550 return 0;
99551
99552 start = qp->rid;
99553 - end = atomic_inc_return(&peer->rid);
99554 + end = atomic_inc_return_unchecked(&peer->rid);
99555 qp->rid = end;
99556
99557 rc = qp->q.fragments && (end - start) > max;
99558 @@ -761,12 +761,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
99559
99560 static int __net_init ip4_frags_ns_ctl_register(struct net *net)
99561 {
99562 - struct ctl_table *table;
99563 + ctl_table_no_const *table = NULL;
99564 struct ctl_table_header *hdr;
99565
99566 - table = ip4_frags_ns_ctl_table;
99567 if (!net_eq(net, &init_net)) {
99568 - table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
99569 + table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
99570 if (table == NULL)
99571 goto err_alloc;
99572
99573 @@ -777,9 +776,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
99574 /* Don't export sysctls to unprivileged users */
99575 if (net->user_ns != &init_user_ns)
99576 table[0].procname = NULL;
99577 - }
99578 + hdr = register_net_sysctl(net, "net/ipv4", table);
99579 + } else
99580 + hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
99581
99582 - hdr = register_net_sysctl(net, "net/ipv4", table);
99583 if (hdr == NULL)
99584 goto err_reg;
99585
99586 @@ -787,8 +787,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
99587 return 0;
99588
99589 err_reg:
99590 - if (!net_eq(net, &init_net))
99591 - kfree(table);
99592 + kfree(table);
99593 err_alloc:
99594 return -ENOMEM;
99595 }
99596 diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
99597 index 94213c8..8bdb342 100644
99598 --- a/net/ipv4/ip_gre.c
99599 +++ b/net/ipv4/ip_gre.c
99600 @@ -115,7 +115,7 @@ static bool log_ecn_error = true;
99601 module_param(log_ecn_error, bool, 0644);
99602 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
99603
99604 -static struct rtnl_link_ops ipgre_link_ops __read_mostly;
99605 +static struct rtnl_link_ops ipgre_link_ops;
99606 static int ipgre_tunnel_init(struct net_device *dev);
99607
99608 static int ipgre_net_id __read_mostly;
99609 @@ -732,7 +732,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
99610 [IFLA_GRE_PMTUDISC] = { .type = NLA_U8 },
99611 };
99612
99613 -static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
99614 +static struct rtnl_link_ops ipgre_link_ops = {
99615 .kind = "gre",
99616 .maxtype = IFLA_GRE_MAX,
99617 .policy = ipgre_policy,
99618 @@ -746,7 +746,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
99619 .fill_info = ipgre_fill_info,
99620 };
99621
99622 -static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
99623 +static struct rtnl_link_ops ipgre_tap_ops = {
99624 .kind = "gretap",
99625 .maxtype = IFLA_GRE_MAX,
99626 .policy = ipgre_policy,
99627 diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
99628 index 64741b9..6f334a2 100644
99629 --- a/net/ipv4/ip_sockglue.c
99630 +++ b/net/ipv4/ip_sockglue.c
99631 @@ -1188,7 +1188,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
99632 len = min_t(unsigned int, len, opt->optlen);
99633 if (put_user(len, optlen))
99634 return -EFAULT;
99635 - if (copy_to_user(optval, opt->__data, len))
99636 + if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
99637 + copy_to_user(optval, opt->__data, len))
99638 return -EFAULT;
99639 return 0;
99640 }
99641 @@ -1319,7 +1320,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
99642 if (sk->sk_type != SOCK_STREAM)
99643 return -ENOPROTOOPT;
99644
99645 - msg.msg_control = optval;
99646 + msg.msg_control = (void __force_kernel *)optval;
99647 msg.msg_controllen = len;
99648 msg.msg_flags = flags;
99649
99650 diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
99651 index 2acc233..b93143f 100644
99652 --- a/net/ipv4/ip_tunnel.c
99653 +++ b/net/ipv4/ip_tunnel.c
99654 @@ -73,12 +73,7 @@ static void __tunnel_dst_set(struct ip_tunnel_dst *idst,
99655 {
99656 struct dst_entry *old_dst;
99657
99658 - if (dst) {
99659 - if (dst->flags & DST_NOCACHE)
99660 - dst = NULL;
99661 - else
99662 - dst_clone(dst);
99663 - }
99664 + dst_clone(dst);
99665 old_dst = xchg((__force struct dst_entry **)&idst->dst, dst);
99666 dst_release(old_dst);
99667 }
99668 @@ -108,13 +103,14 @@ static struct rtable *tunnel_rtable_get(struct ip_tunnel *t, u32 cookie)
99669
99670 rcu_read_lock();
99671 dst = rcu_dereference(this_cpu_ptr(t->dst_cache)->dst);
99672 + if (dst && !atomic_inc_not_zero(&dst->__refcnt))
99673 + dst = NULL;
99674 if (dst) {
99675 if (dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
99676 - rcu_read_unlock();
99677 tunnel_dst_reset(t);
99678 - return NULL;
99679 + dst_release(dst);
99680 + dst = NULL;
99681 }
99682 - dst_hold(dst);
99683 }
99684 rcu_read_unlock();
99685 return (struct rtable *)dst;
99686 diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
99687 index 13ef00f..8ffca25 100644
99688 --- a/net/ipv4/ip_vti.c
99689 +++ b/net/ipv4/ip_vti.c
99690 @@ -45,7 +45,7 @@
99691 #include <net/net_namespace.h>
99692 #include <net/netns/generic.h>
99693
99694 -static struct rtnl_link_ops vti_link_ops __read_mostly;
99695 +static struct rtnl_link_ops vti_link_ops;
99696
99697 static int vti_net_id __read_mostly;
99698 static int vti_tunnel_init(struct net_device *dev);
99699 @@ -513,7 +513,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
99700 [IFLA_VTI_REMOTE] = { .len = FIELD_SIZEOF(struct iphdr, daddr) },
99701 };
99702
99703 -static struct rtnl_link_ops vti_link_ops __read_mostly = {
99704 +static struct rtnl_link_ops vti_link_ops = {
99705 .kind = "vti",
99706 .maxtype = IFLA_VTI_MAX,
99707 .policy = vti_policy,
99708 diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
99709 index b3e86ea..18ce98c 100644
99710 --- a/net/ipv4/ipconfig.c
99711 +++ b/net/ipv4/ipconfig.c
99712 @@ -334,7 +334,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
99713
99714 mm_segment_t oldfs = get_fs();
99715 set_fs(get_ds());
99716 - res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
99717 + res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
99718 set_fs(oldfs);
99719 return res;
99720 }
99721 @@ -345,7 +345,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
99722
99723 mm_segment_t oldfs = get_fs();
99724 set_fs(get_ds());
99725 - res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
99726 + res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
99727 set_fs(oldfs);
99728 return res;
99729 }
99730 @@ -356,7 +356,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
99731
99732 mm_segment_t oldfs = get_fs();
99733 set_fs(get_ds());
99734 - res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
99735 + res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
99736 set_fs(oldfs);
99737 return res;
99738 }
99739 diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
99740 index 62eaa00..29b2dc2 100644
99741 --- a/net/ipv4/ipip.c
99742 +++ b/net/ipv4/ipip.c
99743 @@ -124,7 +124,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
99744 static int ipip_net_id __read_mostly;
99745
99746 static int ipip_tunnel_init(struct net_device *dev);
99747 -static struct rtnl_link_ops ipip_link_ops __read_mostly;
99748 +static struct rtnl_link_ops ipip_link_ops;
99749
99750 static int ipip_err(struct sk_buff *skb, u32 info)
99751 {
99752 @@ -409,7 +409,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
99753 [IFLA_IPTUN_PMTUDISC] = { .type = NLA_U8 },
99754 };
99755
99756 -static struct rtnl_link_ops ipip_link_ops __read_mostly = {
99757 +static struct rtnl_link_ops ipip_link_ops = {
99758 .kind = "ipip",
99759 .maxtype = IFLA_IPTUN_MAX,
99760 .policy = ipip_policy,
99761 diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
99762 index f95b6f9..2ee2097 100644
99763 --- a/net/ipv4/netfilter/arp_tables.c
99764 +++ b/net/ipv4/netfilter/arp_tables.c
99765 @@ -885,14 +885,14 @@ static int compat_table_info(const struct xt_table_info *info,
99766 #endif
99767
99768 static int get_info(struct net *net, void __user *user,
99769 - const int *len, int compat)
99770 + int len, int compat)
99771 {
99772 char name[XT_TABLE_MAXNAMELEN];
99773 struct xt_table *t;
99774 int ret;
99775
99776 - if (*len != sizeof(struct arpt_getinfo)) {
99777 - duprintf("length %u != %Zu\n", *len,
99778 + if (len != sizeof(struct arpt_getinfo)) {
99779 + duprintf("length %u != %Zu\n", len,
99780 sizeof(struct arpt_getinfo));
99781 return -EINVAL;
99782 }
99783 @@ -929,7 +929,7 @@ static int get_info(struct net *net, void __user *user,
99784 info.size = private->size;
99785 strcpy(info.name, name);
99786
99787 - if (copy_to_user(user, &info, *len) != 0)
99788 + if (copy_to_user(user, &info, len) != 0)
99789 ret = -EFAULT;
99790 else
99791 ret = 0;
99792 @@ -1690,7 +1690,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
99793
99794 switch (cmd) {
99795 case ARPT_SO_GET_INFO:
99796 - ret = get_info(sock_net(sk), user, len, 1);
99797 + ret = get_info(sock_net(sk), user, *len, 1);
99798 break;
99799 case ARPT_SO_GET_ENTRIES:
99800 ret = compat_get_entries(sock_net(sk), user, len);
99801 @@ -1735,7 +1735,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
99802
99803 switch (cmd) {
99804 case ARPT_SO_GET_INFO:
99805 - ret = get_info(sock_net(sk), user, len, 0);
99806 + ret = get_info(sock_net(sk), user, *len, 0);
99807 break;
99808
99809 case ARPT_SO_GET_ENTRIES:
99810 diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
99811 index 99e810f..3711b81 100644
99812 --- a/net/ipv4/netfilter/ip_tables.c
99813 +++ b/net/ipv4/netfilter/ip_tables.c
99814 @@ -1073,14 +1073,14 @@ static int compat_table_info(const struct xt_table_info *info,
99815 #endif
99816
99817 static int get_info(struct net *net, void __user *user,
99818 - const int *len, int compat)
99819 + int len, int compat)
99820 {
99821 char name[XT_TABLE_MAXNAMELEN];
99822 struct xt_table *t;
99823 int ret;
99824
99825 - if (*len != sizeof(struct ipt_getinfo)) {
99826 - duprintf("length %u != %zu\n", *len,
99827 + if (len != sizeof(struct ipt_getinfo)) {
99828 + duprintf("length %u != %zu\n", len,
99829 sizeof(struct ipt_getinfo));
99830 return -EINVAL;
99831 }
99832 @@ -1117,7 +1117,7 @@ static int get_info(struct net *net, void __user *user,
99833 info.size = private->size;
99834 strcpy(info.name, name);
99835
99836 - if (copy_to_user(user, &info, *len) != 0)
99837 + if (copy_to_user(user, &info, len) != 0)
99838 ret = -EFAULT;
99839 else
99840 ret = 0;
99841 @@ -1973,7 +1973,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
99842
99843 switch (cmd) {
99844 case IPT_SO_GET_INFO:
99845 - ret = get_info(sock_net(sk), user, len, 1);
99846 + ret = get_info(sock_net(sk), user, *len, 1);
99847 break;
99848 case IPT_SO_GET_ENTRIES:
99849 ret = compat_get_entries(sock_net(sk), user, len);
99850 @@ -2020,7 +2020,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
99851
99852 switch (cmd) {
99853 case IPT_SO_GET_INFO:
99854 - ret = get_info(sock_net(sk), user, len, 0);
99855 + ret = get_info(sock_net(sk), user, *len, 0);
99856 break;
99857
99858 case IPT_SO_GET_ENTRIES:
99859 diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
99860 index 2510c02..cfb34fa 100644
99861 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
99862 +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
99863 @@ -720,7 +720,7 @@ static int clusterip_net_init(struct net *net)
99864 spin_lock_init(&cn->lock);
99865
99866 #ifdef CONFIG_PROC_FS
99867 - cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
99868 + cn->procdir = proc_mkdir_restrict("ipt_CLUSTERIP", net->proc_net);
99869 if (!cn->procdir) {
99870 pr_err("Unable to proc dir entry\n");
99871 return -ENOMEM;
99872 diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
99873 index 044a0dd..e0c1971 100644
99874 --- a/net/ipv4/ping.c
99875 +++ b/net/ipv4/ping.c
99876 @@ -59,7 +59,7 @@ struct ping_table {
99877 };
99878
99879 static struct ping_table ping_table;
99880 -struct pingv6_ops pingv6_ops;
99881 +struct pingv6_ops *pingv6_ops;
99882 EXPORT_SYMBOL_GPL(pingv6_ops);
99883
99884 static u16 ping_port_rover;
99885 @@ -348,7 +348,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
99886 return -ENODEV;
99887 }
99888 }
99889 - has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
99890 + has_addr = pingv6_ops->ipv6_chk_addr(net, &addr->sin6_addr, dev,
99891 scoped);
99892 rcu_read_unlock();
99893
99894 @@ -556,7 +556,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
99895 }
99896 #if IS_ENABLED(CONFIG_IPV6)
99897 } else if (skb->protocol == htons(ETH_P_IPV6)) {
99898 - harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
99899 + harderr = pingv6_ops->icmpv6_err_convert(type, code, &err);
99900 #endif
99901 }
99902
99903 @@ -574,7 +574,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
99904 info, (u8 *)icmph);
99905 #if IS_ENABLED(CONFIG_IPV6)
99906 } else if (family == AF_INET6) {
99907 - pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
99908 + pingv6_ops->ipv6_icmp_error(sk, skb, err, 0,
99909 info, (u8 *)icmph);
99910 #endif
99911 }
99912 @@ -844,6 +844,8 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
99913 {
99914 struct inet_sock *isk = inet_sk(sk);
99915 int family = sk->sk_family;
99916 + struct sockaddr_in *sin;
99917 + struct sockaddr_in6 *sin6;
99918 struct sk_buff *skb;
99919 int copied, err;
99920
99921 @@ -853,12 +855,19 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
99922 if (flags & MSG_OOB)
99923 goto out;
99924
99925 + if (addr_len) {
99926 + if (family == AF_INET)
99927 + *addr_len = sizeof(*sin);
99928 + else if (family == AF_INET6 && addr_len)
99929 + *addr_len = sizeof(*sin6);
99930 + }
99931 +
99932 if (flags & MSG_ERRQUEUE) {
99933 if (family == AF_INET) {
99934 return ip_recv_error(sk, msg, len, addr_len);
99935 #if IS_ENABLED(CONFIG_IPV6)
99936 } else if (family == AF_INET6) {
99937 - return pingv6_ops.ipv6_recv_error(sk, msg, len,
99938 + return pingv6_ops->ipv6_recv_error(sk, msg, len,
99939 addr_len);
99940 #endif
99941 }
99942 @@ -890,7 +899,6 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
99943 sin->sin_port = 0 /* skb->h.uh->source */;
99944 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
99945 memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
99946 - *addr_len = sizeof(*sin);
99947 }
99948
99949 if (isk->cmsg_flags)
99950 @@ -912,14 +920,13 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
99951 sin6->sin6_scope_id =
99952 ipv6_iface_scope_id(&sin6->sin6_addr,
99953 IP6CB(skb)->iif);
99954 - *addr_len = sizeof(*sin6);
99955 }
99956
99957 if (inet6_sk(sk)->rxopt.all)
99958 - pingv6_ops.ip6_datagram_recv_common_ctl(sk, msg, skb);
99959 + pingv6_ops->ip6_datagram_recv_common_ctl(sk, msg, skb);
99960 if (skb->protocol == htons(ETH_P_IPV6) &&
99961 inet6_sk(sk)->rxopt.all)
99962 - pingv6_ops.ip6_datagram_recv_specific_ctl(sk, msg, skb);
99963 + pingv6_ops->ip6_datagram_recv_specific_ctl(sk, msg, skb);
99964 else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
99965 ip_cmsg_recv(msg, skb);
99966 #endif
99967 @@ -1111,7 +1118,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
99968 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
99969 0, sock_i_ino(sp),
99970 atomic_read(&sp->sk_refcnt), sp,
99971 - atomic_read(&sp->sk_drops));
99972 + atomic_read_unchecked(&sp->sk_drops));
99973 }
99974
99975 static int ping_v4_seq_show(struct seq_file *seq, void *v)
99976 diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
99977 index a9dbe58..46f577f 100644
99978 --- a/net/ipv4/raw.c
99979 +++ b/net/ipv4/raw.c
99980 @@ -311,7 +311,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
99981 int raw_rcv(struct sock *sk, struct sk_buff *skb)
99982 {
99983 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
99984 - atomic_inc(&sk->sk_drops);
99985 + atomic_inc_unchecked(&sk->sk_drops);
99986 kfree_skb(skb);
99987 return NET_RX_DROP;
99988 }
99989 @@ -696,6 +696,9 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
99990 if (flags & MSG_OOB)
99991 goto out;
99992
99993 + if (addr_len)
99994 + *addr_len = sizeof(*sin);
99995 +
99996 if (flags & MSG_ERRQUEUE) {
99997 err = ip_recv_error(sk, msg, len, addr_len);
99998 goto out;
99999 @@ -723,7 +726,6 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
100000 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
100001 sin->sin_port = 0;
100002 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
100003 - *addr_len = sizeof(*sin);
100004 }
100005 if (inet->cmsg_flags)
100006 ip_cmsg_recv(msg, skb);
100007 @@ -748,16 +750,20 @@ static int raw_init(struct sock *sk)
100008
100009 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
100010 {
100011 + struct icmp_filter filter;
100012 +
100013 if (optlen > sizeof(struct icmp_filter))
100014 optlen = sizeof(struct icmp_filter);
100015 - if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
100016 + if (copy_from_user(&filter, optval, optlen))
100017 return -EFAULT;
100018 + raw_sk(sk)->filter = filter;
100019 return 0;
100020 }
100021
100022 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
100023 {
100024 int len, ret = -EFAULT;
100025 + struct icmp_filter filter;
100026
100027 if (get_user(len, optlen))
100028 goto out;
100029 @@ -767,8 +773,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
100030 if (len > sizeof(struct icmp_filter))
100031 len = sizeof(struct icmp_filter);
100032 ret = -EFAULT;
100033 - if (put_user(len, optlen) ||
100034 - copy_to_user(optval, &raw_sk(sk)->filter, len))
100035 + filter = raw_sk(sk)->filter;
100036 + if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
100037 goto out;
100038 ret = 0;
100039 out: return ret;
100040 @@ -997,7 +1003,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
100041 0, 0L, 0,
100042 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
100043 0, sock_i_ino(sp),
100044 - atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
100045 + atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
100046 }
100047
100048 static int raw_seq_show(struct seq_file *seq, void *v)
100049 diff --git a/net/ipv4/route.c b/net/ipv4/route.c
100050 index 5e676be..f6c62f1 100644
100051 --- a/net/ipv4/route.c
100052 +++ b/net/ipv4/route.c
100053 @@ -227,7 +227,7 @@ static const struct seq_operations rt_cache_seq_ops = {
100054
100055 static int rt_cache_seq_open(struct inode *inode, struct file *file)
100056 {
100057 - return seq_open(file, &rt_cache_seq_ops);
100058 + return seq_open_restrict(file, &rt_cache_seq_ops);
100059 }
100060
100061 static const struct file_operations rt_cache_seq_fops = {
100062 @@ -318,7 +318,7 @@ static const struct seq_operations rt_cpu_seq_ops = {
100063
100064 static int rt_cpu_seq_open(struct inode *inode, struct file *file)
100065 {
100066 - return seq_open(file, &rt_cpu_seq_ops);
100067 + return seq_open_restrict(file, &rt_cpu_seq_ops);
100068 }
100069
100070 static const struct file_operations rt_cpu_seq_fops = {
100071 @@ -356,7 +356,7 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
100072
100073 static int rt_acct_proc_open(struct inode *inode, struct file *file)
100074 {
100075 - return single_open(file, rt_acct_proc_show, NULL);
100076 + return single_open_restrict(file, rt_acct_proc_show, NULL);
100077 }
100078
100079 static const struct file_operations rt_acct_proc_fops = {
100080 @@ -2610,34 +2610,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
100081 .maxlen = sizeof(int),
100082 .mode = 0200,
100083 .proc_handler = ipv4_sysctl_rtcache_flush,
100084 + .extra1 = &init_net,
100085 },
100086 { },
100087 };
100088
100089 static __net_init int sysctl_route_net_init(struct net *net)
100090 {
100091 - struct ctl_table *tbl;
100092 + ctl_table_no_const *tbl = NULL;
100093
100094 - tbl = ipv4_route_flush_table;
100095 if (!net_eq(net, &init_net)) {
100096 - tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
100097 + tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
100098 if (tbl == NULL)
100099 goto err_dup;
100100
100101 /* Don't export sysctls to unprivileged users */
100102 if (net->user_ns != &init_user_ns)
100103 tbl[0].procname = NULL;
100104 - }
100105 - tbl[0].extra1 = net;
100106 + tbl[0].extra1 = net;
100107 + net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
100108 + } else
100109 + net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
100110
100111 - net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
100112 if (net->ipv4.route_hdr == NULL)
100113 goto err_reg;
100114 return 0;
100115
100116 err_reg:
100117 - if (tbl != ipv4_route_flush_table)
100118 - kfree(tbl);
100119 + kfree(tbl);
100120 err_dup:
100121 return -ENOMEM;
100122 }
100123 @@ -2660,8 +2660,8 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
100124
100125 static __net_init int rt_genid_init(struct net *net)
100126 {
100127 - atomic_set(&net->ipv4.rt_genid, 0);
100128 - atomic_set(&net->fnhe_genid, 0);
100129 + atomic_set_unchecked(&net->ipv4.rt_genid, 0);
100130 + atomic_set_unchecked(&net->fnhe_genid, 0);
100131 get_random_bytes(&net->ipv4.dev_addr_genid,
100132 sizeof(net->ipv4.dev_addr_genid));
100133 return 0;
100134 diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
100135 index 5cde8f2..5f5684e 100644
100136 --- a/net/ipv4/sysctl_net_ipv4.c
100137 +++ b/net/ipv4/sysctl_net_ipv4.c
100138 @@ -60,7 +60,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
100139 container_of(table->data, struct net, ipv4.ip_local_ports.range);
100140 int ret;
100141 int range[2];
100142 - struct ctl_table tmp = {
100143 + ctl_table_no_const tmp = {
100144 .data = &range,
100145 .maxlen = sizeof(range),
100146 .mode = table->mode,
100147 @@ -118,7 +118,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write,
100148 int ret;
100149 gid_t urange[2];
100150 kgid_t low, high;
100151 - struct ctl_table tmp = {
100152 + ctl_table_no_const tmp = {
100153 .data = &urange,
100154 .maxlen = sizeof(urange),
100155 .mode = table->mode,
100156 @@ -149,7 +149,7 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
100157 void __user *buffer, size_t *lenp, loff_t *ppos)
100158 {
100159 char val[TCP_CA_NAME_MAX];
100160 - struct ctl_table tbl = {
100161 + ctl_table_no_const tbl = {
100162 .data = val,
100163 .maxlen = TCP_CA_NAME_MAX,
100164 };
100165 @@ -168,7 +168,7 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
100166 void __user *buffer, size_t *lenp,
100167 loff_t *ppos)
100168 {
100169 - struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
100170 + ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
100171 int ret;
100172
100173 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
100174 @@ -185,7 +185,7 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
100175 void __user *buffer, size_t *lenp,
100176 loff_t *ppos)
100177 {
100178 - struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
100179 + ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
100180 int ret;
100181
100182 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
100183 @@ -204,7 +204,7 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
100184 void __user *buffer, size_t *lenp,
100185 loff_t *ppos)
100186 {
100187 - struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
100188 + ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
100189 struct tcp_fastopen_context *ctxt;
100190 int ret;
100191 u32 user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
100192 @@ -438,7 +438,7 @@ static struct ctl_table ipv4_table[] = {
100193 },
100194 {
100195 .procname = "ip_local_reserved_ports",
100196 - .data = NULL, /* initialized in sysctl_ipv4_init */
100197 + .data = sysctl_local_reserved_ports,
100198 .maxlen = 65536,
100199 .mode = 0644,
100200 .proc_handler = proc_do_large_bitmap,
100201 @@ -843,13 +843,12 @@ static struct ctl_table ipv4_net_table[] = {
100202
100203 static __net_init int ipv4_sysctl_init_net(struct net *net)
100204 {
100205 - struct ctl_table *table;
100206 + ctl_table_no_const *table = NULL;
100207
100208 - table = ipv4_net_table;
100209 if (!net_eq(net, &init_net)) {
100210 int i;
100211
100212 - table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
100213 + table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
100214 if (table == NULL)
100215 goto err_alloc;
100216
100217 @@ -858,15 +857,17 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
100218 table[i].data += (void *)net - (void *)&init_net;
100219 }
100220
100221 - net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
100222 + if (!net_eq(net, &init_net))
100223 + net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
100224 + else
100225 + net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
100226 if (net->ipv4.ipv4_hdr == NULL)
100227 goto err_reg;
100228
100229 return 0;
100230
100231 err_reg:
100232 - if (!net_eq(net, &init_net))
100233 - kfree(table);
100234 + kfree(table);
100235 err_alloc:
100236 return -ENOMEM;
100237 }
100238 @@ -888,16 +889,6 @@ static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
100239 static __init int sysctl_ipv4_init(void)
100240 {
100241 struct ctl_table_header *hdr;
100242 - struct ctl_table *i;
100243 -
100244 - for (i = ipv4_table; i->procname; i++) {
100245 - if (strcmp(i->procname, "ip_local_reserved_ports") == 0) {
100246 - i->data = sysctl_local_reserved_ports;
100247 - break;
100248 - }
100249 - }
100250 - if (!i->procname)
100251 - return -EINVAL;
100252
100253 hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table);
100254 if (hdr == NULL)
100255 diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
100256 index 3a26b3b..8bbe4ae 100644
100257 --- a/net/ipv4/tcp_input.c
100258 +++ b/net/ipv4/tcp_input.c
100259 @@ -754,7 +754,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
100260 * without any lock. We want to make sure compiler wont store
100261 * intermediate values in this location.
100262 */
100263 - ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
100264 + ACCESS_ONCE_RW(sk->sk_pacing_rate) = min_t(u64, rate,
100265 sk->sk_max_pacing_rate);
100266 }
100267
100268 @@ -4478,7 +4478,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
100269 * simplifies code)
100270 */
100271 static void
100272 -tcp_collapse(struct sock *sk, struct sk_buff_head *list,
100273 +__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
100274 struct sk_buff *head, struct sk_buff *tail,
100275 u32 start, u32 end)
100276 {
100277 @@ -5558,6 +5558,7 @@ discard:
100278 tcp_paws_reject(&tp->rx_opt, 0))
100279 goto discard_and_undo;
100280
100281 +#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
100282 if (th->syn) {
100283 /* We see SYN without ACK. It is attempt of
100284 * simultaneous connect with crossed SYNs.
100285 @@ -5608,6 +5609,7 @@ discard:
100286 goto discard;
100287 #endif
100288 }
100289 +#endif
100290 /* "fifth, if neither of the SYN or RST bits is set then
100291 * drop the segment and return."
100292 */
100293 @@ -5654,7 +5656,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
100294 goto discard;
100295
100296 if (th->syn) {
100297 - if (th->fin)
100298 + if (th->fin || th->urg || th->psh)
100299 goto discard;
100300 if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
100301 return 1;
100302 diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
100303 index 438f3b9..bc9e1ad 100644
100304 --- a/net/ipv4/tcp_ipv4.c
100305 +++ b/net/ipv4/tcp_ipv4.c
100306 @@ -91,6 +91,10 @@ int sysctl_tcp_low_latency __read_mostly;
100307 EXPORT_SYMBOL(sysctl_tcp_low_latency);
100308
100309
100310 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100311 +extern int grsec_enable_blackhole;
100312 +#endif
100313 +
100314 #ifdef CONFIG_TCP_MD5SIG
100315 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
100316 __be32 daddr, __be32 saddr, const struct tcphdr *th);
100317 @@ -1829,6 +1833,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
100318 return 0;
100319
100320 reset:
100321 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100322 + if (!grsec_enable_blackhole)
100323 +#endif
100324 tcp_v4_send_reset(rsk, skb);
100325 discard:
100326 kfree_skb(skb);
100327 @@ -1974,12 +1981,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
100328 TCP_SKB_CB(skb)->sacked = 0;
100329
100330 sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
100331 - if (!sk)
100332 + if (!sk) {
100333 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100334 + ret = 1;
100335 +#endif
100336 goto no_tcp_socket;
100337 -
100338 + }
100339 process:
100340 - if (sk->sk_state == TCP_TIME_WAIT)
100341 + if (sk->sk_state == TCP_TIME_WAIT) {
100342 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100343 + ret = 2;
100344 +#endif
100345 goto do_time_wait;
100346 + }
100347
100348 if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
100349 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
100350 @@ -2033,6 +2047,10 @@ csum_error:
100351 bad_packet:
100352 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
100353 } else {
100354 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100355 + if (!grsec_enable_blackhole || (ret == 1 &&
100356 + (skb->dev->flags & IFF_LOOPBACK)))
100357 +#endif
100358 tcp_v4_send_reset(NULL, skb);
100359 }
100360
100361 diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
100362 index 05c1b15..3e9344b 100644
100363 --- a/net/ipv4/tcp_minisocks.c
100364 +++ b/net/ipv4/tcp_minisocks.c
100365 @@ -27,6 +27,10 @@
100366 #include <net/inet_common.h>
100367 #include <net/xfrm.h>
100368
100369 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100370 +extern int grsec_enable_blackhole;
100371 +#endif
100372 +
100373 int sysctl_tcp_syncookies __read_mostly = 1;
100374 EXPORT_SYMBOL(sysctl_tcp_syncookies);
100375
100376 @@ -709,7 +713,10 @@ embryonic_reset:
100377 * avoid becoming vulnerable to outside attack aiming at
100378 * resetting legit local connections.
100379 */
100380 - req->rsk_ops->send_reset(sk, skb);
100381 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100382 + if (!grsec_enable_blackhole)
100383 +#endif
100384 + req->rsk_ops->send_reset(sk, skb);
100385 } else if (fastopen) { /* received a valid RST pkt */
100386 reqsk_fastopen_remove(sk, req, true);
100387 tcp_reset(sk);
100388 diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
100389 index 3b66610..bfbe23a 100644
100390 --- a/net/ipv4/tcp_probe.c
100391 +++ b/net/ipv4/tcp_probe.c
100392 @@ -238,7 +238,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
100393 if (cnt + width >= len)
100394 break;
100395
100396 - if (copy_to_user(buf + cnt, tbuf, width))
100397 + if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
100398 return -EFAULT;
100399 cnt += width;
100400 }
100401 diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
100402 index 286227a..c495a76 100644
100403 --- a/net/ipv4/tcp_timer.c
100404 +++ b/net/ipv4/tcp_timer.c
100405 @@ -22,6 +22,10 @@
100406 #include <linux/gfp.h>
100407 #include <net/tcp.h>
100408
100409 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100410 +extern int grsec_lastack_retries;
100411 +#endif
100412 +
100413 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
100414 int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
100415 int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
100416 @@ -192,6 +196,13 @@ static int tcp_write_timeout(struct sock *sk)
100417 }
100418 }
100419
100420 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100421 + if ((sk->sk_state == TCP_LAST_ACK) &&
100422 + (grsec_lastack_retries > 0) &&
100423 + (grsec_lastack_retries < retry_until))
100424 + retry_until = grsec_lastack_retries;
100425 +#endif
100426 +
100427 if (retransmits_timed_out(sk, retry_until,
100428 syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
100429 /* Has it gone just too far? */
100430 diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
100431 index 54a5fe9..78fea00 100644
100432 --- a/net/ipv4/udp.c
100433 +++ b/net/ipv4/udp.c
100434 @@ -87,6 +87,7 @@
100435 #include <linux/types.h>
100436 #include <linux/fcntl.h>
100437 #include <linux/module.h>
100438 +#include <linux/security.h>
100439 #include <linux/socket.h>
100440 #include <linux/sockios.h>
100441 #include <linux/igmp.h>
100442 @@ -113,6 +114,10 @@
100443 #include <net/busy_poll.h>
100444 #include "udp_impl.h"
100445
100446 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100447 +extern int grsec_enable_blackhole;
100448 +#endif
100449 +
100450 struct udp_table udp_table __read_mostly;
100451 EXPORT_SYMBOL(udp_table);
100452
100453 @@ -615,6 +620,9 @@ found:
100454 return s;
100455 }
100456
100457 +extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
100458 +extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
100459 +
100460 /*
100461 * This routine is called by the ICMP module when it gets some
100462 * sort of error condition. If err < 0 then the socket should
100463 @@ -914,9 +922,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
100464 dport = usin->sin_port;
100465 if (dport == 0)
100466 return -EINVAL;
100467 +
100468 + err = gr_search_udp_sendmsg(sk, usin);
100469 + if (err)
100470 + return err;
100471 } else {
100472 if (sk->sk_state != TCP_ESTABLISHED)
100473 return -EDESTADDRREQ;
100474 +
100475 + err = gr_search_udp_sendmsg(sk, NULL);
100476 + if (err)
100477 + return err;
100478 +
100479 daddr = inet->inet_daddr;
100480 dport = inet->inet_dport;
100481 /* Open fast path for connected socket.
100482 @@ -1164,7 +1181,7 @@ static unsigned int first_packet_length(struct sock *sk)
100483 IS_UDPLITE(sk));
100484 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
100485 IS_UDPLITE(sk));
100486 - atomic_inc(&sk->sk_drops);
100487 + atomic_inc_unchecked(&sk->sk_drops);
100488 __skb_unlink(skb, rcvq);
100489 __skb_queue_tail(&list_kill, skb);
100490 }
100491 @@ -1235,6 +1252,12 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
100492 int is_udplite = IS_UDPLITE(sk);
100493 bool slow;
100494
100495 + /*
100496 + * Check any passed addresses
100497 + */
100498 + if (addr_len)
100499 + *addr_len = sizeof(*sin);
100500 +
100501 if (flags & MSG_ERRQUEUE)
100502 return ip_recv_error(sk, msg, len, addr_len);
100503
100504 @@ -1244,6 +1267,10 @@ try_again:
100505 if (!skb)
100506 goto out;
100507
100508 + err = gr_search_udp_recvmsg(sk, skb);
100509 + if (err)
100510 + goto out_free;
100511 +
100512 ulen = skb->len - sizeof(struct udphdr);
100513 copied = len;
100514 if (copied > ulen)
100515 @@ -1277,7 +1304,7 @@ try_again:
100516 if (unlikely(err)) {
100517 trace_kfree_skb(skb, udp_recvmsg);
100518 if (!peeked) {
100519 - atomic_inc(&sk->sk_drops);
100520 + atomic_inc_unchecked(&sk->sk_drops);
100521 UDP_INC_STATS_USER(sock_net(sk),
100522 UDP_MIB_INERRORS, is_udplite);
100523 }
100524 @@ -1296,7 +1323,6 @@ try_again:
100525 sin->sin_port = udp_hdr(skb)->source;
100526 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
100527 memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
100528 - *addr_len = sizeof(*sin);
100529 }
100530 if (inet->cmsg_flags)
100531 ip_cmsg_recv(msg, skb);
100532 @@ -1567,7 +1593,7 @@ csum_error:
100533 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
100534 drop:
100535 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
100536 - atomic_inc(&sk->sk_drops);
100537 + atomic_inc_unchecked(&sk->sk_drops);
100538 kfree_skb(skb);
100539 return -1;
100540 }
100541 @@ -1586,7 +1612,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
100542 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
100543
100544 if (!skb1) {
100545 - atomic_inc(&sk->sk_drops);
100546 + atomic_inc_unchecked(&sk->sk_drops);
100547 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
100548 IS_UDPLITE(sk));
100549 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
100550 @@ -1787,6 +1813,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
100551 goto csum_error;
100552
100553 UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
100554 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
100555 + if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
100556 +#endif
100557 icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
100558
100559 /*
100560 @@ -2355,7 +2384,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
100561 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
100562 0, sock_i_ino(sp),
100563 atomic_read(&sp->sk_refcnt), sp,
100564 - atomic_read(&sp->sk_drops));
100565 + atomic_read_unchecked(&sp->sk_drops));
100566 }
100567
100568 int udp4_seq_show(struct seq_file *seq, void *v)
100569 diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
100570 index 6156f68..d6ab46d 100644
100571 --- a/net/ipv4/xfrm4_policy.c
100572 +++ b/net/ipv4/xfrm4_policy.c
100573 @@ -186,11 +186,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
100574 fl4->flowi4_tos = iph->tos;
100575 }
100576
100577 -static inline int xfrm4_garbage_collect(struct dst_ops *ops)
100578 +static int xfrm4_garbage_collect(struct dst_ops *ops)
100579 {
100580 struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
100581
100582 - xfrm4_policy_afinfo.garbage_collect(net);
100583 + xfrm_garbage_collect_deferred(net);
100584 return (dst_entries_get_slow(ops) > ops->gc_thresh * 2);
100585 }
100586
100587 @@ -269,19 +269,18 @@ static struct ctl_table xfrm4_policy_table[] = {
100588
100589 static int __net_init xfrm4_net_init(struct net *net)
100590 {
100591 - struct ctl_table *table;
100592 + ctl_table_no_const *table = NULL;
100593 struct ctl_table_header *hdr;
100594
100595 - table = xfrm4_policy_table;
100596 if (!net_eq(net, &init_net)) {
100597 - table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
100598 + table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
100599 if (!table)
100600 goto err_alloc;
100601
100602 table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
100603 - }
100604 -
100605 - hdr = register_net_sysctl(net, "net/ipv4", table);
100606 + hdr = register_net_sysctl(net, "net/ipv4", table);
100607 + } else
100608 + hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
100609 if (!hdr)
100610 goto err_reg;
100611
100612 @@ -289,8 +288,7 @@ static int __net_init xfrm4_net_init(struct net *net)
100613 return 0;
100614
100615 err_reg:
100616 - if (!net_eq(net, &init_net))
100617 - kfree(table);
100618 + kfree(table);
100619 err_alloc:
100620 return -ENOMEM;
100621 }
100622 diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
100623 index 6c7fa08..8a31430 100644
100624 --- a/net/ipv6/addrconf.c
100625 +++ b/net/ipv6/addrconf.c
100626 @@ -598,7 +598,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb,
100627 idx = 0;
100628 head = &net->dev_index_head[h];
100629 rcu_read_lock();
100630 - cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^
100631 + cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^
100632 net->dev_base_seq;
100633 hlist_for_each_entry_rcu(dev, head, index_hlist) {
100634 if (idx < s_idx)
100635 @@ -2395,7 +2395,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
100636 p.iph.ihl = 5;
100637 p.iph.protocol = IPPROTO_IPV6;
100638 p.iph.ttl = 64;
100639 - ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
100640 + ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
100641
100642 if (ops->ndo_do_ioctl) {
100643 mm_segment_t oldfs = get_fs();
100644 @@ -3528,16 +3528,23 @@ static const struct file_operations if6_fops = {
100645 .release = seq_release_net,
100646 };
100647
100648 +extern void register_ipv6_seq_ops_addr(struct seq_operations *addr);
100649 +extern void unregister_ipv6_seq_ops_addr(void);
100650 +
100651 static int __net_init if6_proc_net_init(struct net *net)
100652 {
100653 - if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops))
100654 + register_ipv6_seq_ops_addr(&if6_seq_ops);
100655 + if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops)) {
100656 + unregister_ipv6_seq_ops_addr();
100657 return -ENOMEM;
100658 + }
100659 return 0;
100660 }
100661
100662 static void __net_exit if6_proc_net_exit(struct net *net)
100663 {
100664 remove_proc_entry("if_inet6", net->proc_net);
100665 + unregister_ipv6_seq_ops_addr();
100666 }
100667
100668 static struct pernet_operations if6_proc_net_ops = {
100669 @@ -4146,7 +4153,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
100670 s_ip_idx = ip_idx = cb->args[2];
100671
100672 rcu_read_lock();
100673 - cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
100674 + cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
100675 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
100676 idx = 0;
100677 head = &net->dev_index_head[h];
100678 @@ -4758,7 +4765,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
100679 dst_free(&ifp->rt->dst);
100680 break;
100681 }
100682 - atomic_inc(&net->ipv6.dev_addr_genid);
100683 + atomic_inc_unchecked(&net->ipv6.dev_addr_genid);
100684 rt_genid_bump_ipv6(net);
100685 }
100686
100687 @@ -4779,7 +4786,7 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
100688 int *valp = ctl->data;
100689 int val = *valp;
100690 loff_t pos = *ppos;
100691 - struct ctl_table lctl;
100692 + ctl_table_no_const lctl;
100693 int ret;
100694
100695 /*
100696 @@ -4864,7 +4871,7 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
100697 int *valp = ctl->data;
100698 int val = *valp;
100699 loff_t pos = *ppos;
100700 - struct ctl_table lctl;
100701 + ctl_table_no_const lctl;
100702 int ret;
100703
100704 /*
100705 diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
100706 index d935889..2f64330 100644
100707 --- a/net/ipv6/af_inet6.c
100708 +++ b/net/ipv6/af_inet6.c
100709 @@ -776,7 +776,7 @@ static int __net_init inet6_net_init(struct net *net)
100710 net->ipv6.sysctl.bindv6only = 0;
100711 net->ipv6.sysctl.icmpv6_time = 1*HZ;
100712 net->ipv6.sysctl.flowlabel_consistency = 1;
100713 - atomic_set(&net->ipv6.rt_genid, 0);
100714 + atomic_set_unchecked(&net->ipv6.rt_genid, 0);
100715
100716 err = ipv6_init_mibs(net);
100717 if (err)
100718 diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
100719 index c3bf2d2..1f00573 100644
100720 --- a/net/ipv6/datagram.c
100721 +++ b/net/ipv6/datagram.c
100722 @@ -938,5 +938,5 @@ void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
100723 0,
100724 sock_i_ino(sp),
100725 atomic_read(&sp->sk_refcnt), sp,
100726 - atomic_read(&sp->sk_drops));
100727 + atomic_read_unchecked(&sp->sk_drops));
100728 }
100729 diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
100730 index 7b32652..0bc348b 100644
100731 --- a/net/ipv6/icmp.c
100732 +++ b/net/ipv6/icmp.c
100733 @@ -1005,7 +1005,7 @@ static struct ctl_table ipv6_icmp_table_template[] = {
100734
100735 struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
100736 {
100737 - struct ctl_table *table;
100738 + ctl_table_no_const *table;
100739
100740 table = kmemdup(ipv6_icmp_table_template,
100741 sizeof(ipv6_icmp_table_template),
100742 diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
100743 index 9d92146..d986c6a 100644
100744 --- a/net/ipv6/ip6_gre.c
100745 +++ b/net/ipv6/ip6_gre.c
100746 @@ -71,7 +71,7 @@ struct ip6gre_net {
100747 struct net_device *fb_tunnel_dev;
100748 };
100749
100750 -static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
100751 +static struct rtnl_link_ops ip6gre_link_ops;
100752 static int ip6gre_tunnel_init(struct net_device *dev);
100753 static void ip6gre_tunnel_setup(struct net_device *dev);
100754 static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
100755 @@ -1291,7 +1291,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
100756 }
100757
100758
100759 -static struct inet6_protocol ip6gre_protocol __read_mostly = {
100760 +static struct inet6_protocol ip6gre_protocol = {
100761 .handler = ip6gre_rcv,
100762 .err_handler = ip6gre_err,
100763 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
100764 @@ -1636,7 +1636,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
100765 [IFLA_GRE_FLAGS] = { .type = NLA_U32 },
100766 };
100767
100768 -static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
100769 +static struct rtnl_link_ops ip6gre_link_ops = {
100770 .kind = "ip6gre",
100771 .maxtype = IFLA_GRE_MAX,
100772 .policy = ip6gre_policy,
100773 @@ -1650,7 +1650,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
100774 .fill_info = ip6gre_fill_info,
100775 };
100776
100777 -static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
100778 +static struct rtnl_link_ops ip6gre_tap_ops = {
100779 .kind = "ip6gretap",
100780 .maxtype = IFLA_GRE_MAX,
100781 .policy = ip6gre_policy,
100782 diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
100783 index afa0824..04ba530 100644
100784 --- a/net/ipv6/ip6_tunnel.c
100785 +++ b/net/ipv6/ip6_tunnel.c
100786 @@ -86,7 +86,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
100787
100788 static int ip6_tnl_dev_init(struct net_device *dev);
100789 static void ip6_tnl_dev_setup(struct net_device *dev);
100790 -static struct rtnl_link_ops ip6_link_ops __read_mostly;
100791 +static struct rtnl_link_ops ip6_link_ops;
100792
100793 static int ip6_tnl_net_id __read_mostly;
100794 struct ip6_tnl_net {
100795 @@ -1708,7 +1708,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
100796 [IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
100797 };
100798
100799 -static struct rtnl_link_ops ip6_link_ops __read_mostly = {
100800 +static struct rtnl_link_ops ip6_link_ops = {
100801 .kind = "ip6tnl",
100802 .maxtype = IFLA_IPTUN_MAX,
100803 .policy = ip6_tnl_policy,
100804 diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
100805 index 6cc9f93..6e5bb7c 100644
100806 --- a/net/ipv6/ip6_vti.c
100807 +++ b/net/ipv6/ip6_vti.c
100808 @@ -62,7 +62,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
100809
100810 static int vti6_dev_init(struct net_device *dev);
100811 static void vti6_dev_setup(struct net_device *dev);
100812 -static struct rtnl_link_ops vti6_link_ops __read_mostly;
100813 +static struct rtnl_link_ops vti6_link_ops;
100814
100815 static int vti6_net_id __read_mostly;
100816 struct vti6_net {
100817 @@ -980,7 +980,7 @@ static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
100818 [IFLA_VTI_OKEY] = { .type = NLA_U32 },
100819 };
100820
100821 -static struct rtnl_link_ops vti6_link_ops __read_mostly = {
100822 +static struct rtnl_link_ops vti6_link_ops = {
100823 .kind = "vti6",
100824 .maxtype = IFLA_VTI_MAX,
100825 .policy = vti6_policy,
100826 diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
100827 index edb58af..78de133 100644
100828 --- a/net/ipv6/ipv6_sockglue.c
100829 +++ b/net/ipv6/ipv6_sockglue.c
100830 @@ -991,7 +991,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
100831 if (sk->sk_type != SOCK_STREAM)
100832 return -ENOPROTOOPT;
100833
100834 - msg.msg_control = optval;
100835 + msg.msg_control = (void __force_kernel *)optval;
100836 msg.msg_controllen = len;
100837 msg.msg_flags = flags;
100838
100839 diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
100840 index e080fbb..412b3cf 100644
100841 --- a/net/ipv6/netfilter/ip6_tables.c
100842 +++ b/net/ipv6/netfilter/ip6_tables.c
100843 @@ -1083,14 +1083,14 @@ static int compat_table_info(const struct xt_table_info *info,
100844 #endif
100845
100846 static int get_info(struct net *net, void __user *user,
100847 - const int *len, int compat)
100848 + int len, int compat)
100849 {
100850 char name[XT_TABLE_MAXNAMELEN];
100851 struct xt_table *t;
100852 int ret;
100853
100854 - if (*len != sizeof(struct ip6t_getinfo)) {
100855 - duprintf("length %u != %zu\n", *len,
100856 + if (len != sizeof(struct ip6t_getinfo)) {
100857 + duprintf("length %u != %zu\n", len,
100858 sizeof(struct ip6t_getinfo));
100859 return -EINVAL;
100860 }
100861 @@ -1127,7 +1127,7 @@ static int get_info(struct net *net, void __user *user,
100862 info.size = private->size;
100863 strcpy(info.name, name);
100864
100865 - if (copy_to_user(user, &info, *len) != 0)
100866 + if (copy_to_user(user, &info, len) != 0)
100867 ret = -EFAULT;
100868 else
100869 ret = 0;
100870 @@ -1983,7 +1983,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
100871
100872 switch (cmd) {
100873 case IP6T_SO_GET_INFO:
100874 - ret = get_info(sock_net(sk), user, len, 1);
100875 + ret = get_info(sock_net(sk), user, *len, 1);
100876 break;
100877 case IP6T_SO_GET_ENTRIES:
100878 ret = compat_get_entries(sock_net(sk), user, len);
100879 @@ -2030,7 +2030,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
100880
100881 switch (cmd) {
100882 case IP6T_SO_GET_INFO:
100883 - ret = get_info(sock_net(sk), user, len, 0);
100884 + ret = get_info(sock_net(sk), user, *len, 0);
100885 break;
100886
100887 case IP6T_SO_GET_ENTRIES:
100888 diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
100889 index 767ab8d..c5ec70a 100644
100890 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c
100891 +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
100892 @@ -90,12 +90,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
100893
100894 static int nf_ct_frag6_sysctl_register(struct net *net)
100895 {
100896 - struct ctl_table *table;
100897 + ctl_table_no_const *table = NULL;
100898 struct ctl_table_header *hdr;
100899
100900 - table = nf_ct_frag6_sysctl_table;
100901 if (!net_eq(net, &init_net)) {
100902 - table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
100903 + table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
100904 GFP_KERNEL);
100905 if (table == NULL)
100906 goto err_alloc;
100907 @@ -103,9 +102,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
100908 table[0].data = &net->nf_frag.frags.timeout;
100909 table[1].data = &net->nf_frag.frags.low_thresh;
100910 table[2].data = &net->nf_frag.frags.high_thresh;
100911 - }
100912 -
100913 - hdr = register_net_sysctl(net, "net/netfilter", table);
100914 + hdr = register_net_sysctl(net, "net/netfilter", table);
100915 + } else
100916 + hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
100917 if (hdr == NULL)
100918 goto err_reg;
100919
100920 @@ -113,8 +112,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
100921 return 0;
100922
100923 err_reg:
100924 - if (!net_eq(net, &init_net))
100925 - kfree(table);
100926 + kfree(table);
100927 err_alloc:
100928 return -ENOMEM;
100929 }
100930 diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
100931 index 56596ce..c734618 100644
100932 --- a/net/ipv6/output_core.c
100933 +++ b/net/ipv6/output_core.c
100934 @@ -10,7 +10,7 @@
100935
100936 void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
100937 {
100938 - static atomic_t ipv6_fragmentation_id;
100939 + static atomic_unchecked_t ipv6_fragmentation_id;
100940 struct in6_addr addr;
100941 int ident;
100942
100943 @@ -26,7 +26,7 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
100944 return;
100945 }
100946 #endif
100947 - ident = atomic_inc_return(&ipv6_fragmentation_id);
100948 + ident = atomic_inc_return_unchecked(&ipv6_fragmentation_id);
100949
100950 addr = rt->rt6i_dst.addr;
100951 addr.s6_addr32[0] ^= (__force __be32)ident;
100952 diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
100953 index bda7429..469b26b 100644
100954 --- a/net/ipv6/ping.c
100955 +++ b/net/ipv6/ping.c
100956 @@ -246,6 +246,24 @@ static struct pernet_operations ping_v6_net_ops = {
100957 };
100958 #endif
100959
100960 +static struct pingv6_ops real_pingv6_ops = {
100961 + .ipv6_recv_error = ipv6_recv_error,
100962 + .ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl,
100963 + .ip6_datagram_recv_specific_ctl = ip6_datagram_recv_specific_ctl,
100964 + .icmpv6_err_convert = icmpv6_err_convert,
100965 + .ipv6_icmp_error = ipv6_icmp_error,
100966 + .ipv6_chk_addr = ipv6_chk_addr,
100967 +};
100968 +
100969 +static struct pingv6_ops dummy_pingv6_ops = {
100970 + .ipv6_recv_error = dummy_ipv6_recv_error,
100971 + .ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl,
100972 + .ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl,
100973 + .icmpv6_err_convert = dummy_icmpv6_err_convert,
100974 + .ipv6_icmp_error = dummy_ipv6_icmp_error,
100975 + .ipv6_chk_addr = dummy_ipv6_chk_addr,
100976 +};
100977 +
100978 int __init pingv6_init(void)
100979 {
100980 #ifdef CONFIG_PROC_FS
100981 @@ -253,13 +271,7 @@ int __init pingv6_init(void)
100982 if (ret)
100983 return ret;
100984 #endif
100985 - pingv6_ops.ipv6_recv_error = ipv6_recv_error;
100986 - pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl;
100987 - pingv6_ops.ip6_datagram_recv_specific_ctl =
100988 - ip6_datagram_recv_specific_ctl;
100989 - pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
100990 - pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
100991 - pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
100992 + pingv6_ops = &real_pingv6_ops;
100993 return inet6_register_protosw(&pingv6_protosw);
100994 }
100995
100996 @@ -268,14 +280,9 @@ int __init pingv6_init(void)
100997 */
100998 void pingv6_exit(void)
100999 {
101000 - pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
101001 - pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl;
101002 - pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl;
101003 - pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
101004 - pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
101005 - pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
101006 #ifdef CONFIG_PROC_FS
101007 unregister_pernet_subsys(&ping_v6_net_ops);
101008 #endif
101009 + pingv6_ops = &dummy_pingv6_ops;
101010 inet6_unregister_protosw(&pingv6_protosw);
101011 }
101012 diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
101013 index 091d066..139d410 100644
101014 --- a/net/ipv6/proc.c
101015 +++ b/net/ipv6/proc.c
101016 @@ -309,7 +309,7 @@ static int __net_init ipv6_proc_init_net(struct net *net)
101017 if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
101018 goto proc_snmp6_fail;
101019
101020 - net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
101021 + net->mib.proc_net_devsnmp6 = proc_mkdir_restrict("dev_snmp6", net->proc_net);
101022 if (!net->mib.proc_net_devsnmp6)
101023 goto proc_dev_snmp6_fail;
101024 return 0;
101025 diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
101026 index 1f29996..46fe0c7 100644
101027 --- a/net/ipv6/raw.c
101028 +++ b/net/ipv6/raw.c
101029 @@ -388,7 +388,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
101030 {
101031 if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
101032 skb_checksum_complete(skb)) {
101033 - atomic_inc(&sk->sk_drops);
101034 + atomic_inc_unchecked(&sk->sk_drops);
101035 kfree_skb(skb);
101036 return NET_RX_DROP;
101037 }
101038 @@ -416,7 +416,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
101039 struct raw6_sock *rp = raw6_sk(sk);
101040
101041 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
101042 - atomic_inc(&sk->sk_drops);
101043 + atomic_inc_unchecked(&sk->sk_drops);
101044 kfree_skb(skb);
101045 return NET_RX_DROP;
101046 }
101047 @@ -440,7 +440,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
101048
101049 if (inet->hdrincl) {
101050 if (skb_checksum_complete(skb)) {
101051 - atomic_inc(&sk->sk_drops);
101052 + atomic_inc_unchecked(&sk->sk_drops);
101053 kfree_skb(skb);
101054 return NET_RX_DROP;
101055 }
101056 @@ -469,6 +469,9 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
101057 if (flags & MSG_OOB)
101058 return -EOPNOTSUPP;
101059
101060 + if (addr_len)
101061 + *addr_len=sizeof(*sin6);
101062 +
101063 if (flags & MSG_ERRQUEUE)
101064 return ipv6_recv_error(sk, msg, len, addr_len);
101065
101066 @@ -507,7 +510,6 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
101067 sin6->sin6_flowinfo = 0;
101068 sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
101069 IP6CB(skb)->iif);
101070 - *addr_len = sizeof(*sin6);
101071 }
101072
101073 sock_recv_ts_and_drops(msg, sk, skb);
101074 @@ -610,7 +612,7 @@ out:
101075 return err;
101076 }
101077
101078 -static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
101079 +static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
101080 struct flowi6 *fl6, struct dst_entry **dstp,
101081 unsigned int flags)
101082 {
101083 @@ -922,12 +924,15 @@ do_confirm:
101084 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
101085 char __user *optval, int optlen)
101086 {
101087 + struct icmp6_filter filter;
101088 +
101089 switch (optname) {
101090 case ICMPV6_FILTER:
101091 if (optlen > sizeof(struct icmp6_filter))
101092 optlen = sizeof(struct icmp6_filter);
101093 - if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
101094 + if (copy_from_user(&filter, optval, optlen))
101095 return -EFAULT;
101096 + raw6_sk(sk)->filter = filter;
101097 return 0;
101098 default:
101099 return -ENOPROTOOPT;
101100 @@ -940,6 +945,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
101101 char __user *optval, int __user *optlen)
101102 {
101103 int len;
101104 + struct icmp6_filter filter;
101105
101106 switch (optname) {
101107 case ICMPV6_FILTER:
101108 @@ -951,7 +957,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
101109 len = sizeof(struct icmp6_filter);
101110 if (put_user(len, optlen))
101111 return -EFAULT;
101112 - if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
101113 + filter = raw6_sk(sk)->filter;
101114 + if (len > sizeof filter || copy_to_user(optval, &filter, len))
101115 return -EFAULT;
101116 return 0;
101117 default:
101118 diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
101119 index cc85a9b..526a133 100644
101120 --- a/net/ipv6/reassembly.c
101121 +++ b/net/ipv6/reassembly.c
101122 @@ -626,12 +626,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
101123
101124 static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
101125 {
101126 - struct ctl_table *table;
101127 + ctl_table_no_const *table = NULL;
101128 struct ctl_table_header *hdr;
101129
101130 - table = ip6_frags_ns_ctl_table;
101131 if (!net_eq(net, &init_net)) {
101132 - table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
101133 + table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
101134 if (table == NULL)
101135 goto err_alloc;
101136
101137 @@ -642,9 +641,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
101138 /* Don't export sysctls to unprivileged users */
101139 if (net->user_ns != &init_user_ns)
101140 table[0].procname = NULL;
101141 - }
101142 + hdr = register_net_sysctl(net, "net/ipv6", table);
101143 + } else
101144 + hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
101145
101146 - hdr = register_net_sysctl(net, "net/ipv6", table);
101147 if (hdr == NULL)
101148 goto err_reg;
101149
101150 @@ -652,8 +652,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
101151 return 0;
101152
101153 err_reg:
101154 - if (!net_eq(net, &init_net))
101155 - kfree(table);
101156 + kfree(table);
101157 err_alloc:
101158 return -ENOMEM;
101159 }
101160 diff --git a/net/ipv6/route.c b/net/ipv6/route.c
101161 index 6ebdb7b6..f225ab1 100644
101162 --- a/net/ipv6/route.c
101163 +++ b/net/ipv6/route.c
101164 @@ -2971,7 +2971,7 @@ struct ctl_table ipv6_route_table_template[] = {
101165
101166 struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
101167 {
101168 - struct ctl_table *table;
101169 + ctl_table_no_const *table;
101170
101171 table = kmemdup(ipv6_route_table_template,
101172 sizeof(ipv6_route_table_template),
101173 diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
101174 index 4f40817..54dcbef 100644
101175 --- a/net/ipv6/sit.c
101176 +++ b/net/ipv6/sit.c
101177 @@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
101178 static void ipip6_dev_free(struct net_device *dev);
101179 static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
101180 __be32 *v4dst);
101181 -static struct rtnl_link_ops sit_link_ops __read_mostly;
101182 +static struct rtnl_link_ops sit_link_ops;
101183
101184 static int sit_net_id __read_mostly;
101185 struct sit_net {
101186 @@ -1661,7 +1661,7 @@ static void ipip6_dellink(struct net_device *dev, struct list_head *head)
101187 unregister_netdevice_queue(dev, head);
101188 }
101189
101190 -static struct rtnl_link_ops sit_link_ops __read_mostly = {
101191 +static struct rtnl_link_ops sit_link_ops = {
101192 .kind = "sit",
101193 .maxtype = IFLA_IPTUN_MAX,
101194 .policy = ipip6_policy,
101195 diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
101196 index 7f405a1..eabef92 100644
101197 --- a/net/ipv6/sysctl_net_ipv6.c
101198 +++ b/net/ipv6/sysctl_net_ipv6.c
101199 @@ -54,7 +54,7 @@ static struct ctl_table ipv6_rotable[] = {
101200
101201 static int __net_init ipv6_sysctl_net_init(struct net *net)
101202 {
101203 - struct ctl_table *ipv6_table;
101204 + ctl_table_no_const *ipv6_table;
101205 struct ctl_table *ipv6_route_table;
101206 struct ctl_table *ipv6_icmp_table;
101207 int err;
101208 diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
101209 index e289830..79a5718 100644
101210 --- a/net/ipv6/tcp_ipv6.c
101211 +++ b/net/ipv6/tcp_ipv6.c
101212 @@ -102,6 +102,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
101213 inet6_sk(sk)->rx_dst_cookie = rt->rt6i_node->fn_sernum;
101214 }
101215
101216 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101217 +extern int grsec_enable_blackhole;
101218 +#endif
101219 +
101220 static void tcp_v6_hash(struct sock *sk)
101221 {
101222 if (sk->sk_state != TCP_CLOSE) {
101223 @@ -1416,6 +1420,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
101224 return 0;
101225
101226 reset:
101227 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101228 + if (!grsec_enable_blackhole)
101229 +#endif
101230 tcp_v6_send_reset(sk, skb);
101231 discard:
101232 if (opt_skb)
101233 @@ -1500,12 +1507,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
101234 TCP_SKB_CB(skb)->sacked = 0;
101235
101236 sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
101237 - if (!sk)
101238 + if (!sk) {
101239 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101240 + ret = 1;
101241 +#endif
101242 goto no_tcp_socket;
101243 + }
101244
101245 process:
101246 - if (sk->sk_state == TCP_TIME_WAIT)
101247 + if (sk->sk_state == TCP_TIME_WAIT) {
101248 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101249 + ret = 2;
101250 +#endif
101251 goto do_time_wait;
101252 + }
101253
101254 if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
101255 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
101256 @@ -1557,6 +1572,10 @@ csum_error:
101257 bad_packet:
101258 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
101259 } else {
101260 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101261 + if (!grsec_enable_blackhole || (ret == 1 &&
101262 + (skb->dev->flags & IFF_LOOPBACK)))
101263 +#endif
101264 tcp_v6_send_reset(NULL, skb);
101265 }
101266
101267 diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
101268 index 20b63d2..13be908 100644
101269 --- a/net/ipv6/udp.c
101270 +++ b/net/ipv6/udp.c
101271 @@ -76,6 +76,10 @@ static unsigned int udp6_ehashfn(struct net *net,
101272 udp_ipv6_hash_secret + net_hash_mix(net));
101273 }
101274
101275 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101276 +extern int grsec_enable_blackhole;
101277 +#endif
101278 +
101279 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
101280 {
101281 const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
101282 @@ -392,6 +396,9 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
101283 int is_udp4;
101284 bool slow;
101285
101286 + if (addr_len)
101287 + *addr_len = sizeof(struct sockaddr_in6);
101288 +
101289 if (flags & MSG_ERRQUEUE)
101290 return ipv6_recv_error(sk, msg, len, addr_len);
101291
101292 @@ -435,7 +442,7 @@ try_again:
101293 if (unlikely(err)) {
101294 trace_kfree_skb(skb, udpv6_recvmsg);
101295 if (!peeked) {
101296 - atomic_inc(&sk->sk_drops);
101297 + atomic_inc_unchecked(&sk->sk_drops);
101298 if (is_udp4)
101299 UDP_INC_STATS_USER(sock_net(sk),
101300 UDP_MIB_INERRORS,
101301 @@ -475,7 +482,7 @@ try_again:
101302 ipv6_iface_scope_id(&sin6->sin6_addr,
101303 IP6CB(skb)->iif);
101304 }
101305 - *addr_len = sizeof(*sin6);
101306 +
101307 }
101308
101309 if (np->rxopt.all)
101310 @@ -690,7 +697,7 @@ csum_error:
101311 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
101312 drop:
101313 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
101314 - atomic_inc(&sk->sk_drops);
101315 + atomic_inc_unchecked(&sk->sk_drops);
101316 kfree_skb(skb);
101317 return -1;
101318 }
101319 @@ -747,7 +754,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
101320 if (likely(skb1 == NULL))
101321 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
101322 if (!skb1) {
101323 - atomic_inc(&sk->sk_drops);
101324 + atomic_inc_unchecked(&sk->sk_drops);
101325 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
101326 IS_UDPLITE(sk));
101327 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
101328 @@ -886,6 +893,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
101329 goto csum_error;
101330
101331 UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
101332 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
101333 + if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
101334 +#endif
101335 icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
101336
101337 kfree_skb(skb);
101338 diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
101339 index 2a0bbda..d75ca57 100644
101340 --- a/net/ipv6/xfrm6_policy.c
101341 +++ b/net/ipv6/xfrm6_policy.c
101342 @@ -212,11 +212,11 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
101343 }
101344 }
101345
101346 -static inline int xfrm6_garbage_collect(struct dst_ops *ops)
101347 +static int xfrm6_garbage_collect(struct dst_ops *ops)
101348 {
101349 struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
101350
101351 - xfrm6_policy_afinfo.garbage_collect(net);
101352 + xfrm_garbage_collect_deferred(net);
101353 return dst_entries_get_fast(ops) > ops->gc_thresh * 2;
101354 }
101355
101356 @@ -329,19 +329,19 @@ static struct ctl_table xfrm6_policy_table[] = {
101357
101358 static int __net_init xfrm6_net_init(struct net *net)
101359 {
101360 - struct ctl_table *table;
101361 + ctl_table_no_const *table = NULL;
101362 struct ctl_table_header *hdr;
101363
101364 - table = xfrm6_policy_table;
101365 if (!net_eq(net, &init_net)) {
101366 - table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
101367 + table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
101368 if (!table)
101369 goto err_alloc;
101370
101371 table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
101372 - }
101373 + hdr = register_net_sysctl(net, "net/ipv6", table);
101374 + } else
101375 + hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
101376
101377 - hdr = register_net_sysctl(net, "net/ipv6", table);
101378 if (!hdr)
101379 goto err_reg;
101380
101381 @@ -349,8 +349,7 @@ static int __net_init xfrm6_net_init(struct net *net)
101382 return 0;
101383
101384 err_reg:
101385 - if (!net_eq(net, &init_net))
101386 - kfree(table);
101387 + kfree(table);
101388 err_alloc:
101389 return -ENOMEM;
101390 }
101391 diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
101392 index e15c16a..7cf07aa 100644
101393 --- a/net/ipx/ipx_proc.c
101394 +++ b/net/ipx/ipx_proc.c
101395 @@ -289,7 +289,7 @@ int __init ipx_proc_init(void)
101396 struct proc_dir_entry *p;
101397 int rc = -ENOMEM;
101398
101399 - ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
101400 + ipx_proc_dir = proc_mkdir_restrict("ipx", init_net.proc_net);
101401
101402 if (!ipx_proc_dir)
101403 goto out;
101404 diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
101405 index 2ba8b97..6d33010 100644
101406 --- a/net/irda/ircomm/ircomm_tty.c
101407 +++ b/net/irda/ircomm/ircomm_tty.c
101408 @@ -317,11 +317,11 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
101409 add_wait_queue(&port->open_wait, &wait);
101410
101411 IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
101412 - __FILE__, __LINE__, tty->driver->name, port->count);
101413 + __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
101414
101415 spin_lock_irqsave(&port->lock, flags);
101416 if (!tty_hung_up_p(filp))
101417 - port->count--;
101418 + atomic_dec(&port->count);
101419 port->blocked_open++;
101420 spin_unlock_irqrestore(&port->lock, flags);
101421
101422 @@ -356,7 +356,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
101423 }
101424
101425 IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n",
101426 - __FILE__, __LINE__, tty->driver->name, port->count);
101427 + __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
101428
101429 schedule();
101430 }
101431 @@ -366,12 +366,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
101432
101433 spin_lock_irqsave(&port->lock, flags);
101434 if (!tty_hung_up_p(filp))
101435 - port->count++;
101436 + atomic_inc(&port->count);
101437 port->blocked_open--;
101438 spin_unlock_irqrestore(&port->lock, flags);
101439
101440 IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n",
101441 - __FILE__, __LINE__, tty->driver->name, port->count);
101442 + __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
101443
101444 if (!retval)
101445 port->flags |= ASYNC_NORMAL_ACTIVE;
101446 @@ -445,12 +445,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
101447
101448 /* ++ is not atomic, so this should be protected - Jean II */
101449 spin_lock_irqsave(&self->port.lock, flags);
101450 - self->port.count++;
101451 + atomic_inc(&self->port.count);
101452 spin_unlock_irqrestore(&self->port.lock, flags);
101453 tty_port_tty_set(&self->port, tty);
101454
101455 IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
101456 - self->line, self->port.count);
101457 + self->line, atomic_read(&self->port.count));
101458
101459 /* Not really used by us, but lets do it anyway */
101460 self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
101461 @@ -987,7 +987,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
101462 tty_kref_put(port->tty);
101463 }
101464 port->tty = NULL;
101465 - port->count = 0;
101466 + atomic_set(&port->count, 0);
101467 spin_unlock_irqrestore(&port->lock, flags);
101468
101469 wake_up_interruptible(&port->open_wait);
101470 @@ -1344,7 +1344,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
101471 seq_putc(m, '\n');
101472
101473 seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
101474 - seq_printf(m, "Open count: %d\n", self->port.count);
101475 + seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
101476 seq_printf(m, "Max data size: %d\n", self->max_data_size);
101477 seq_printf(m, "Max header size: %d\n", self->max_header_size);
101478
101479 diff --git a/net/irda/irproc.c b/net/irda/irproc.c
101480 index b9ac598..f88cc56 100644
101481 --- a/net/irda/irproc.c
101482 +++ b/net/irda/irproc.c
101483 @@ -66,7 +66,7 @@ void __init irda_proc_register(void)
101484 {
101485 int i;
101486
101487 - proc_irda = proc_mkdir("irda", init_net.proc_net);
101488 + proc_irda = proc_mkdir_restrict("irda", init_net.proc_net);
101489 if (proc_irda == NULL)
101490 return;
101491
101492 diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
101493 index 8c9d730..66c6305 100644
101494 --- a/net/iucv/af_iucv.c
101495 +++ b/net/iucv/af_iucv.c
101496 @@ -773,10 +773,10 @@ static int iucv_sock_autobind(struct sock *sk)
101497
101498 write_lock_bh(&iucv_sk_list.lock);
101499
101500 - sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
101501 + sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
101502 while (__iucv_get_sock_by_name(name)) {
101503 sprintf(name, "%08x",
101504 - atomic_inc_return(&iucv_sk_list.autobind_name));
101505 + atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
101506 }
101507
101508 write_unlock_bh(&iucv_sk_list.lock);
101509 diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
101510 index da78793..bdd78cf 100644
101511 --- a/net/iucv/iucv.c
101512 +++ b/net/iucv/iucv.c
101513 @@ -702,7 +702,7 @@ static int iucv_cpu_notify(struct notifier_block *self,
101514 return NOTIFY_OK;
101515 }
101516
101517 -static struct notifier_block __refdata iucv_cpu_notifier = {
101518 +static struct notifier_block iucv_cpu_notifier = {
101519 .notifier_call = iucv_cpu_notify,
101520 };
101521
101522 diff --git a/net/key/af_key.c b/net/key/af_key.c
101523 index f3c8307..7127791 100644
101524 --- a/net/key/af_key.c
101525 +++ b/net/key/af_key.c
101526 @@ -3070,10 +3070,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
101527 static u32 get_acqseq(void)
101528 {
101529 u32 res;
101530 - static atomic_t acqseq;
101531 + static atomic_unchecked_t acqseq;
101532
101533 do {
101534 - res = atomic_inc_return(&acqseq);
101535 + res = atomic_inc_return_unchecked(&acqseq);
101536 } while (!res);
101537 return res;
101538 }
101539 diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
101540 index 76125c5..e474828 100644
101541 --- a/net/l2tp/l2tp_eth.c
101542 +++ b/net/l2tp/l2tp_eth.c
101543 @@ -42,12 +42,12 @@ struct l2tp_eth {
101544 struct sock *tunnel_sock;
101545 struct l2tp_session *session;
101546 struct list_head list;
101547 - atomic_long_t tx_bytes;
101548 - atomic_long_t tx_packets;
101549 - atomic_long_t tx_dropped;
101550 - atomic_long_t rx_bytes;
101551 - atomic_long_t rx_packets;
101552 - atomic_long_t rx_errors;
101553 + atomic_long_unchecked_t tx_bytes;
101554 + atomic_long_unchecked_t tx_packets;
101555 + atomic_long_unchecked_t tx_dropped;
101556 + atomic_long_unchecked_t rx_bytes;
101557 + atomic_long_unchecked_t rx_packets;
101558 + atomic_long_unchecked_t rx_errors;
101559 };
101560
101561 /* via l2tp_session_priv() */
101562 @@ -98,10 +98,10 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
101563 int ret = l2tp_xmit_skb(session, skb, session->hdr_len);
101564
101565 if (likely(ret == NET_XMIT_SUCCESS)) {
101566 - atomic_long_add(len, &priv->tx_bytes);
101567 - atomic_long_inc(&priv->tx_packets);
101568 + atomic_long_add_unchecked(len, &priv->tx_bytes);
101569 + atomic_long_inc_unchecked(&priv->tx_packets);
101570 } else {
101571 - atomic_long_inc(&priv->tx_dropped);
101572 + atomic_long_inc_unchecked(&priv->tx_dropped);
101573 }
101574 return NETDEV_TX_OK;
101575 }
101576 @@ -111,12 +111,12 @@ static struct rtnl_link_stats64 *l2tp_eth_get_stats64(struct net_device *dev,
101577 {
101578 struct l2tp_eth *priv = netdev_priv(dev);
101579
101580 - stats->tx_bytes = atomic_long_read(&priv->tx_bytes);
101581 - stats->tx_packets = atomic_long_read(&priv->tx_packets);
101582 - stats->tx_dropped = atomic_long_read(&priv->tx_dropped);
101583 - stats->rx_bytes = atomic_long_read(&priv->rx_bytes);
101584 - stats->rx_packets = atomic_long_read(&priv->rx_packets);
101585 - stats->rx_errors = atomic_long_read(&priv->rx_errors);
101586 + stats->tx_bytes = atomic_long_read_unchecked(&priv->tx_bytes);
101587 + stats->tx_packets = atomic_long_read_unchecked(&priv->tx_packets);
101588 + stats->tx_dropped = atomic_long_read_unchecked(&priv->tx_dropped);
101589 + stats->rx_bytes = atomic_long_read_unchecked(&priv->rx_bytes);
101590 + stats->rx_packets = atomic_long_read_unchecked(&priv->rx_packets);
101591 + stats->rx_errors = atomic_long_read_unchecked(&priv->rx_errors);
101592 return stats;
101593 }
101594
101595 @@ -166,15 +166,15 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
101596 nf_reset(skb);
101597
101598 if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) {
101599 - atomic_long_inc(&priv->rx_packets);
101600 - atomic_long_add(data_len, &priv->rx_bytes);
101601 + atomic_long_inc_unchecked(&priv->rx_packets);
101602 + atomic_long_add_unchecked(data_len, &priv->rx_bytes);
101603 } else {
101604 - atomic_long_inc(&priv->rx_errors);
101605 + atomic_long_inc_unchecked(&priv->rx_errors);
101606 }
101607 return;
101608
101609 error:
101610 - atomic_long_inc(&priv->rx_errors);
101611 + atomic_long_inc_unchecked(&priv->rx_errors);
101612 kfree_skb(skb);
101613 }
101614
101615 diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
101616 index 3397fe6..861fd1a 100644
101617 --- a/net/l2tp/l2tp_ip.c
101618 +++ b/net/l2tp/l2tp_ip.c
101619 @@ -518,6 +518,9 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
101620 if (flags & MSG_OOB)
101621 goto out;
101622
101623 + if (addr_len)
101624 + *addr_len = sizeof(*sin);
101625 +
101626 skb = skb_recv_datagram(sk, flags, noblock, &err);
101627 if (!skb)
101628 goto out;
101629 @@ -540,7 +543,6 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
101630 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
101631 sin->sin_port = 0;
101632 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
101633 - *addr_len = sizeof(*sin);
101634 }
101635 if (inet->cmsg_flags)
101636 ip_cmsg_recv(msg, skb);
101637 diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
101638 index 1a3c7e0..80f8b0c 100644
101639 --- a/net/llc/llc_proc.c
101640 +++ b/net/llc/llc_proc.c
101641 @@ -247,7 +247,7 @@ int __init llc_proc_init(void)
101642 int rc = -ENOMEM;
101643 struct proc_dir_entry *p;
101644
101645 - llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
101646 + llc_proc_dir = proc_mkdir_restrict("llc", init_net.proc_net);
101647 if (!llc_proc_dir)
101648 goto out;
101649
101650 diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
101651 index aaa59d7..21a2c4a 100644
101652 --- a/net/mac80211/cfg.c
101653 +++ b/net/mac80211/cfg.c
101654 @@ -839,7 +839,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
101655 ret = ieee80211_vif_use_channel(sdata, chandef,
101656 IEEE80211_CHANCTX_EXCLUSIVE);
101657 }
101658 - } else if (local->open_count == local->monitors) {
101659 + } else if (local_read(&local->open_count) == local->monitors) {
101660 local->_oper_chandef = *chandef;
101661 ieee80211_hw_config(local, 0);
101662 }
101663 @@ -3440,7 +3440,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
101664 else
101665 local->probe_req_reg--;
101666
101667 - if (!local->open_count)
101668 + if (!local_read(&local->open_count))
101669 break;
101670
101671 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
101672 @@ -3903,8 +3903,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
101673 if (chanctx_conf) {
101674 *chandef = chanctx_conf->def;
101675 ret = 0;
101676 - } else if (local->open_count > 0 &&
101677 - local->open_count == local->monitors &&
101678 + } else if (local_read(&local->open_count) > 0 &&
101679 + local_read(&local->open_count) == local->monitors &&
101680 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
101681 if (local->use_chanctx)
101682 *chandef = local->monitor_chandef;
101683 diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
101684 index f169b6e..a5dc4eb 100644
101685 --- a/net/mac80211/ieee80211_i.h
101686 +++ b/net/mac80211/ieee80211_i.h
101687 @@ -28,6 +28,7 @@
101688 #include <net/ieee80211_radiotap.h>
101689 #include <net/cfg80211.h>
101690 #include <net/mac80211.h>
101691 +#include <asm/local.h>
101692 #include "key.h"
101693 #include "sta_info.h"
101694 #include "debug.h"
101695 @@ -999,7 +1000,7 @@ struct ieee80211_local {
101696 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
101697 spinlock_t queue_stop_reason_lock;
101698
101699 - int open_count;
101700 + local_t open_count;
101701 int monitors, cooked_mntrs;
101702 /* number of interfaces with corresponding FIF_ flags */
101703 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
101704 diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
101705 index 34799e0..b411290 100644
101706 --- a/net/mac80211/iface.c
101707 +++ b/net/mac80211/iface.c
101708 @@ -524,7 +524,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
101709 break;
101710 }
101711
101712 - if (local->open_count == 0) {
101713 + if (local_read(&local->open_count) == 0) {
101714 res = drv_start(local);
101715 if (res)
101716 goto err_del_bss;
101717 @@ -571,7 +571,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
101718 res = drv_add_interface(local, sdata);
101719 if (res)
101720 goto err_stop;
101721 - } else if (local->monitors == 0 && local->open_count == 0) {
101722 + } else if (local->monitors == 0 && local_read(&local->open_count) == 0) {
101723 res = ieee80211_add_virtual_monitor(local);
101724 if (res)
101725 goto err_stop;
101726 @@ -680,7 +680,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
101727 atomic_inc(&local->iff_promiscs);
101728
101729 if (coming_up)
101730 - local->open_count++;
101731 + local_inc(&local->open_count);
101732
101733 if (hw_reconf_flags)
101734 ieee80211_hw_config(local, hw_reconf_flags);
101735 @@ -718,7 +718,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
101736 err_del_interface:
101737 drv_remove_interface(local, sdata);
101738 err_stop:
101739 - if (!local->open_count)
101740 + if (!local_read(&local->open_count))
101741 drv_stop(local);
101742 err_del_bss:
101743 sdata->bss = NULL;
101744 @@ -871,7 +871,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
101745 }
101746
101747 if (going_down)
101748 - local->open_count--;
101749 + local_dec(&local->open_count);
101750
101751 switch (sdata->vif.type) {
101752 case NL80211_IFTYPE_AP_VLAN:
101753 @@ -930,7 +930,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
101754 }
101755 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
101756
101757 - if (local->open_count == 0)
101758 + if (local_read(&local->open_count) == 0)
101759 ieee80211_clear_tx_pending(local);
101760
101761 /*
101762 @@ -970,7 +970,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
101763
101764 ieee80211_recalc_ps(local, -1);
101765
101766 - if (local->open_count == 0) {
101767 + if (local_read(&local->open_count) == 0) {
101768 ieee80211_stop_device(local);
101769
101770 /* no reconfiguring after stop! */
101771 @@ -981,7 +981,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
101772 ieee80211_configure_filter(local);
101773 ieee80211_hw_config(local, hw_reconf_flags);
101774
101775 - if (local->monitors == local->open_count)
101776 + if (local->monitors == local_read(&local->open_count))
101777 ieee80211_add_virtual_monitor(local);
101778 }
101779
101780 diff --git a/net/mac80211/main.c b/net/mac80211/main.c
101781 index 4c1bf61..00b449b 100644
101782 --- a/net/mac80211/main.c
101783 +++ b/net/mac80211/main.c
101784 @@ -174,7 +174,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
101785 changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
101786 IEEE80211_CONF_CHANGE_POWER);
101787
101788 - if (changed && local->open_count) {
101789 + if (changed && local_read(&local->open_count)) {
101790 ret = drv_config(local, changed);
101791 /*
101792 * Goal:
101793 diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
101794 index d478b88..8c8d157 100644
101795 --- a/net/mac80211/pm.c
101796 +++ b/net/mac80211/pm.c
101797 @@ -12,7 +12,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
101798 struct ieee80211_sub_if_data *sdata;
101799 struct sta_info *sta;
101800
101801 - if (!local->open_count)
101802 + if (!local_read(&local->open_count))
101803 goto suspend;
101804
101805 ieee80211_scan_cancel(local);
101806 @@ -58,7 +58,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
101807 cancel_work_sync(&local->dynamic_ps_enable_work);
101808 del_timer_sync(&local->dynamic_ps_timer);
101809
101810 - local->wowlan = wowlan && local->open_count;
101811 + local->wowlan = wowlan && local_read(&local->open_count);
101812 if (local->wowlan) {
101813 int err = drv_suspend(local, wowlan);
101814 if (err < 0) {
101815 @@ -123,7 +123,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
101816 WARN_ON(!list_empty(&local->chanctx_list));
101817
101818 /* stop hardware - this must stop RX */
101819 - if (local->open_count)
101820 + if (local_read(&local->open_count))
101821 ieee80211_stop_device(local);
101822
101823 suspend:
101824 diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
101825 index 8fdadfd..a4f72b8 100644
101826 --- a/net/mac80211/rate.c
101827 +++ b/net/mac80211/rate.c
101828 @@ -720,7 +720,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
101829
101830 ASSERT_RTNL();
101831
101832 - if (local->open_count)
101833 + if (local_read(&local->open_count))
101834 return -EBUSY;
101835
101836 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
101837 diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
101838 index 6ff1346..936ca9a 100644
101839 --- a/net/mac80211/rc80211_pid_debugfs.c
101840 +++ b/net/mac80211/rc80211_pid_debugfs.c
101841 @@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
101842
101843 spin_unlock_irqrestore(&events->lock, status);
101844
101845 - if (copy_to_user(buf, pb, p))
101846 + if (p > sizeof(pb) || copy_to_user(buf, pb, p))
101847 return -EFAULT;
101848
101849 return p;
101850 diff --git a/net/mac80211/util.c b/net/mac80211/util.c
101851 index 3c36583..12887fe 100644
101852 --- a/net/mac80211/util.c
101853 +++ b/net/mac80211/util.c
101854 @@ -1509,7 +1509,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
101855 }
101856 #endif
101857 /* everything else happens only if HW was up & running */
101858 - if (!local->open_count)
101859 + if (!local_read(&local->open_count))
101860 goto wake_up;
101861
101862 /*
101863 @@ -1734,7 +1734,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
101864 local->in_reconfig = false;
101865 barrier();
101866
101867 - if (local->monitors == local->open_count && local->monitors > 0)
101868 + if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
101869 ieee80211_add_virtual_monitor(local);
101870
101871 /*
101872 diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
101873 index e9410d1..77b6378 100644
101874 --- a/net/netfilter/Kconfig
101875 +++ b/net/netfilter/Kconfig
101876 @@ -1081,6 +1081,16 @@ config NETFILTER_XT_MATCH_ESP
101877
101878 To compile it as a module, choose M here. If unsure, say N.
101879
101880 +config NETFILTER_XT_MATCH_GRADM
101881 + tristate '"gradm" match support'
101882 + depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
101883 + depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
101884 + ---help---
101885 + The gradm match allows to match on grsecurity RBAC being enabled.
101886 + It is useful when iptables rules are applied early on bootup to
101887 + prevent connections to the machine (except from a trusted host)
101888 + while the RBAC system is disabled.
101889 +
101890 config NETFILTER_XT_MATCH_HASHLIMIT
101891 tristate '"hashlimit" match support'
101892 depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
101893 diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
101894 index bffdad7..f9317d1 100644
101895 --- a/net/netfilter/Makefile
101896 +++ b/net/netfilter/Makefile
101897 @@ -133,6 +133,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
101898 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
101899 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
101900 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
101901 +obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
101902 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
101903 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
101904 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
101905 diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
101906 index 1172083..986f1c1 100644
101907 --- a/net/netfilter/ipset/ip_set_core.c
101908 +++ b/net/netfilter/ipset/ip_set_core.c
101909 @@ -1924,7 +1924,7 @@ done:
101910 return ret;
101911 }
101912
101913 -static struct nf_sockopt_ops so_set __read_mostly = {
101914 +static struct nf_sockopt_ops so_set = {
101915 .pf = PF_INET,
101916 .get_optmin = SO_IP_SET,
101917 .get_optmax = SO_IP_SET + 1,
101918 diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
101919 index a8eb0a8..86f2de4 100644
101920 --- a/net/netfilter/ipvs/ip_vs_conn.c
101921 +++ b/net/netfilter/ipvs/ip_vs_conn.c
101922 @@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
101923 /* Increase the refcnt counter of the dest */
101924 ip_vs_dest_hold(dest);
101925
101926 - conn_flags = atomic_read(&dest->conn_flags);
101927 + conn_flags = atomic_read_unchecked(&dest->conn_flags);
101928 if (cp->protocol != IPPROTO_UDP)
101929 conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
101930 flags = cp->flags;
101931 @@ -900,7 +900,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p,
101932
101933 cp->control = NULL;
101934 atomic_set(&cp->n_control, 0);
101935 - atomic_set(&cp->in_pkts, 0);
101936 + atomic_set_unchecked(&cp->in_pkts, 0);
101937
101938 cp->packet_xmit = NULL;
101939 cp->app = NULL;
101940 @@ -1188,7 +1188,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
101941
101942 /* Don't drop the entry if its number of incoming packets is not
101943 located in [0, 8] */
101944 - i = atomic_read(&cp->in_pkts);
101945 + i = atomic_read_unchecked(&cp->in_pkts);
101946 if (i > 8 || i < 0) return 0;
101947
101948 if (!todrop_rate[i]) return 0;
101949 diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
101950 index 3d2d2c8..c87e4d3 100644
101951 --- a/net/netfilter/ipvs/ip_vs_core.c
101952 +++ b/net/netfilter/ipvs/ip_vs_core.c
101953 @@ -567,7 +567,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
101954 ret = cp->packet_xmit(skb, cp, pd->pp, iph);
101955 /* do not touch skb anymore */
101956
101957 - atomic_inc(&cp->in_pkts);
101958 + atomic_inc_unchecked(&cp->in_pkts);
101959 ip_vs_conn_put(cp);
101960 return ret;
101961 }
101962 @@ -1711,7 +1711,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
101963 if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
101964 pkts = sysctl_sync_threshold(ipvs);
101965 else
101966 - pkts = atomic_add_return(1, &cp->in_pkts);
101967 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
101968
101969 if (ipvs->sync_state & IP_VS_STATE_MASTER)
101970 ip_vs_sync_conn(net, cp, pkts);
101971 diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
101972 index c42e83d..a6a3f8b 100644
101973 --- a/net/netfilter/ipvs/ip_vs_ctl.c
101974 +++ b/net/netfilter/ipvs/ip_vs_ctl.c
101975 @@ -794,7 +794,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
101976 */
101977 ip_vs_rs_hash(ipvs, dest);
101978 }
101979 - atomic_set(&dest->conn_flags, conn_flags);
101980 + atomic_set_unchecked(&dest->conn_flags, conn_flags);
101981
101982 /* bind the service */
101983 old_svc = rcu_dereference_protected(dest->svc, 1);
101984 @@ -1654,7 +1654,7 @@ proc_do_sync_ports(struct ctl_table *table, int write,
101985 * align with netns init in ip_vs_control_net_init()
101986 */
101987
101988 -static struct ctl_table vs_vars[] = {
101989 +static ctl_table_no_const vs_vars[] __read_only = {
101990 {
101991 .procname = "amemthresh",
101992 .maxlen = sizeof(int),
101993 @@ -2075,7 +2075,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
101994 " %-7s %-6d %-10d %-10d\n",
101995 &dest->addr.in6,
101996 ntohs(dest->port),
101997 - ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
101998 + ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
101999 atomic_read(&dest->weight),
102000 atomic_read(&dest->activeconns),
102001 atomic_read(&dest->inactconns));
102002 @@ -2086,7 +2086,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
102003 "%-7s %-6d %-10d %-10d\n",
102004 ntohl(dest->addr.ip),
102005 ntohs(dest->port),
102006 - ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
102007 + ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
102008 atomic_read(&dest->weight),
102009 atomic_read(&dest->activeconns),
102010 atomic_read(&dest->inactconns));
102011 @@ -2564,7 +2564,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
102012
102013 entry.addr = dest->addr.ip;
102014 entry.port = dest->port;
102015 - entry.conn_flags = atomic_read(&dest->conn_flags);
102016 + entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
102017 entry.weight = atomic_read(&dest->weight);
102018 entry.u_threshold = dest->u_threshold;
102019 entry.l_threshold = dest->l_threshold;
102020 @@ -3107,7 +3107,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
102021 if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
102022 nla_put_be16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
102023 nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
102024 - (atomic_read(&dest->conn_flags) &
102025 + (atomic_read_unchecked(&dest->conn_flags) &
102026 IP_VS_CONN_F_FWD_MASK)) ||
102027 nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
102028 atomic_read(&dest->weight)) ||
102029 @@ -3697,7 +3697,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
102030 {
102031 int idx;
102032 struct netns_ipvs *ipvs = net_ipvs(net);
102033 - struct ctl_table *tbl;
102034 + ctl_table_no_const *tbl;
102035
102036 atomic_set(&ipvs->dropentry, 0);
102037 spin_lock_init(&ipvs->dropentry_lock);
102038 diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
102039 index 547ff33..c8c8117 100644
102040 --- a/net/netfilter/ipvs/ip_vs_lblc.c
102041 +++ b/net/netfilter/ipvs/ip_vs_lblc.c
102042 @@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
102043 * IPVS LBLC sysctl table
102044 */
102045 #ifdef CONFIG_SYSCTL
102046 -static struct ctl_table vs_vars_table[] = {
102047 +static ctl_table_no_const vs_vars_table[] __read_only = {
102048 {
102049 .procname = "lblc_expiration",
102050 .data = NULL,
102051 diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
102052 index 3f21a2f..a112e85 100644
102053 --- a/net/netfilter/ipvs/ip_vs_lblcr.c
102054 +++ b/net/netfilter/ipvs/ip_vs_lblcr.c
102055 @@ -289,7 +289,7 @@ struct ip_vs_lblcr_table {
102056 * IPVS LBLCR sysctl table
102057 */
102058
102059 -static struct ctl_table vs_vars_table[] = {
102060 +static ctl_table_no_const vs_vars_table[] __read_only = {
102061 {
102062 .procname = "lblcr_expiration",
102063 .data = NULL,
102064 diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
102065 index db80126..ef7110e 100644
102066 --- a/net/netfilter/ipvs/ip_vs_sync.c
102067 +++ b/net/netfilter/ipvs/ip_vs_sync.c
102068 @@ -609,7 +609,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
102069 cp = cp->control;
102070 if (cp) {
102071 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
102072 - pkts = atomic_add_return(1, &cp->in_pkts);
102073 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
102074 else
102075 pkts = sysctl_sync_threshold(ipvs);
102076 ip_vs_sync_conn(net, cp->control, pkts);
102077 @@ -771,7 +771,7 @@ control:
102078 if (!cp)
102079 return;
102080 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
102081 - pkts = atomic_add_return(1, &cp->in_pkts);
102082 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
102083 else
102084 pkts = sysctl_sync_threshold(ipvs);
102085 goto sloop;
102086 @@ -895,7 +895,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
102087
102088 if (opt)
102089 memcpy(&cp->in_seq, opt, sizeof(*opt));
102090 - atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
102091 + atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
102092 cp->state = state;
102093 cp->old_state = cp->state;
102094 /*
102095 diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
102096 index c47444e..b0961c6 100644
102097 --- a/net/netfilter/ipvs/ip_vs_xmit.c
102098 +++ b/net/netfilter/ipvs/ip_vs_xmit.c
102099 @@ -1102,7 +1102,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
102100 else
102101 rc = NF_ACCEPT;
102102 /* do not touch skb anymore */
102103 - atomic_inc(&cp->in_pkts);
102104 + atomic_inc_unchecked(&cp->in_pkts);
102105 goto out;
102106 }
102107
102108 @@ -1194,7 +1194,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
102109 else
102110 rc = NF_ACCEPT;
102111 /* do not touch skb anymore */
102112 - atomic_inc(&cp->in_pkts);
102113 + atomic_inc_unchecked(&cp->in_pkts);
102114 goto out;
102115 }
102116
102117 diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
102118 index a4b5e2a..13b1de3 100644
102119 --- a/net/netfilter/nf_conntrack_acct.c
102120 +++ b/net/netfilter/nf_conntrack_acct.c
102121 @@ -62,7 +62,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
102122 #ifdef CONFIG_SYSCTL
102123 static int nf_conntrack_acct_init_sysctl(struct net *net)
102124 {
102125 - struct ctl_table *table;
102126 + ctl_table_no_const *table;
102127
102128 table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
102129 GFP_KERNEL);
102130 diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
102131 index 75421f2..0e69621 100644
102132 --- a/net/netfilter/nf_conntrack_core.c
102133 +++ b/net/netfilter/nf_conntrack_core.c
102134 @@ -1789,6 +1789,10 @@ void nf_conntrack_init_end(void)
102135 #define DYING_NULLS_VAL ((1<<30)+1)
102136 #define TEMPLATE_NULLS_VAL ((1<<30)+2)
102137
102138 +#ifdef CONFIG_GRKERNSEC_HIDESYM
102139 +static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
102140 +#endif
102141 +
102142 int nf_conntrack_init_net(struct net *net)
102143 {
102144 int ret = -ENOMEM;
102145 @@ -1814,7 +1818,11 @@ int nf_conntrack_init_net(struct net *net)
102146 if (!net->ct.stat)
102147 goto err_pcpu_lists;
102148
102149 +#ifdef CONFIG_GRKERNSEC_HIDESYM
102150 + net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08x", atomic_inc_return_unchecked(&conntrack_cache_id));
102151 +#else
102152 net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
102153 +#endif
102154 if (!net->ct.slabname)
102155 goto err_slabname;
102156
102157 diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
102158 index 1df1761..ce8b88a 100644
102159 --- a/net/netfilter/nf_conntrack_ecache.c
102160 +++ b/net/netfilter/nf_conntrack_ecache.c
102161 @@ -188,7 +188,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
102162 #ifdef CONFIG_SYSCTL
102163 static int nf_conntrack_event_init_sysctl(struct net *net)
102164 {
102165 - struct ctl_table *table;
102166 + ctl_table_no_const *table;
102167
102168 table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
102169 GFP_KERNEL);
102170 diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
102171 index 5b3eae7..dd4b8fe 100644
102172 --- a/net/netfilter/nf_conntrack_helper.c
102173 +++ b/net/netfilter/nf_conntrack_helper.c
102174 @@ -57,7 +57,7 @@ static struct ctl_table helper_sysctl_table[] = {
102175
102176 static int nf_conntrack_helper_init_sysctl(struct net *net)
102177 {
102178 - struct ctl_table *table;
102179 + ctl_table_no_const *table;
102180
102181 table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
102182 GFP_KERNEL);
102183 diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
102184 index b65d586..beec902 100644
102185 --- a/net/netfilter/nf_conntrack_proto.c
102186 +++ b/net/netfilter/nf_conntrack_proto.c
102187 @@ -52,7 +52,7 @@ nf_ct_register_sysctl(struct net *net,
102188
102189 static void
102190 nf_ct_unregister_sysctl(struct ctl_table_header **header,
102191 - struct ctl_table **table,
102192 + ctl_table_no_const **table,
102193 unsigned int users)
102194 {
102195 if (users > 0)
102196 diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
102197 index f641751..d3c5b51 100644
102198 --- a/net/netfilter/nf_conntrack_standalone.c
102199 +++ b/net/netfilter/nf_conntrack_standalone.c
102200 @@ -471,7 +471,7 @@ static struct ctl_table nf_ct_netfilter_table[] = {
102201
102202 static int nf_conntrack_standalone_init_sysctl(struct net *net)
102203 {
102204 - struct ctl_table *table;
102205 + ctl_table_no_const *table;
102206
102207 table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
102208 GFP_KERNEL);
102209 diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
102210 index 7a394df..bd91a8a 100644
102211 --- a/net/netfilter/nf_conntrack_timestamp.c
102212 +++ b/net/netfilter/nf_conntrack_timestamp.c
102213 @@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
102214 #ifdef CONFIG_SYSCTL
102215 static int nf_conntrack_tstamp_init_sysctl(struct net *net)
102216 {
102217 - struct ctl_table *table;
102218 + ctl_table_no_const *table;
102219
102220 table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
102221 GFP_KERNEL);
102222 diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
102223 index 85296d4..8becdec 100644
102224 --- a/net/netfilter/nf_log.c
102225 +++ b/net/netfilter/nf_log.c
102226 @@ -243,7 +243,7 @@ static const struct file_operations nflog_file_ops = {
102227
102228 #ifdef CONFIG_SYSCTL
102229 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
102230 -static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
102231 +static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
102232
102233 static int nf_log_proc_dostring(struct ctl_table *table, int write,
102234 void __user *buffer, size_t *lenp, loff_t *ppos)
102235 @@ -274,14 +274,16 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
102236 rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
102237 mutex_unlock(&nf_log_mutex);
102238 } else {
102239 + ctl_table_no_const nf_log_table = *table;
102240 +
102241 mutex_lock(&nf_log_mutex);
102242 logger = rcu_dereference_protected(net->nf.nf_loggers[tindex],
102243 lockdep_is_held(&nf_log_mutex));
102244 if (!logger)
102245 - table->data = "NONE";
102246 + nf_log_table.data = "NONE";
102247 else
102248 - table->data = logger->name;
102249 - r = proc_dostring(table, write, buffer, lenp, ppos);
102250 + nf_log_table.data = logger->name;
102251 + r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
102252 mutex_unlock(&nf_log_mutex);
102253 }
102254
102255 diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
102256 index f042ae5..30ea486 100644
102257 --- a/net/netfilter/nf_sockopt.c
102258 +++ b/net/netfilter/nf_sockopt.c
102259 @@ -45,7 +45,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
102260 }
102261 }
102262
102263 - list_add(&reg->list, &nf_sockopts);
102264 + pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
102265 out:
102266 mutex_unlock(&nf_sockopt_mutex);
102267 return ret;
102268 @@ -55,7 +55,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
102269 void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
102270 {
102271 mutex_lock(&nf_sockopt_mutex);
102272 - list_del(&reg->list);
102273 + pax_list_del((struct list_head *)&reg->list);
102274 mutex_unlock(&nf_sockopt_mutex);
102275 }
102276 EXPORT_SYMBOL(nf_unregister_sockopt);
102277 diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
102278 index d292c8d..9f1e166 100644
102279 --- a/net/netfilter/nfnetlink_log.c
102280 +++ b/net/netfilter/nfnetlink_log.c
102281 @@ -79,7 +79,7 @@ static int nfnl_log_net_id __read_mostly;
102282 struct nfnl_log_net {
102283 spinlock_t instances_lock;
102284 struct hlist_head instance_table[INSTANCE_BUCKETS];
102285 - atomic_t global_seq;
102286 + atomic_unchecked_t global_seq;
102287 };
102288
102289 static struct nfnl_log_net *nfnl_log_pernet(struct net *net)
102290 @@ -561,7 +561,7 @@ __build_packet_message(struct nfnl_log_net *log,
102291 /* global sequence number */
102292 if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
102293 nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
102294 - htonl(atomic_inc_return(&log->global_seq))))
102295 + htonl(atomic_inc_return_unchecked(&log->global_seq))))
102296 goto nla_put_failure;
102297
102298 if (data_len) {
102299 diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
102300 index 8a779be..1551d4c 100644
102301 --- a/net/netfilter/nft_compat.c
102302 +++ b/net/netfilter/nft_compat.c
102303 @@ -216,7 +216,7 @@ target_dump_info(struct sk_buff *skb, const struct xt_target *t, const void *in)
102304 /* We want to reuse existing compat_to_user */
102305 old_fs = get_fs();
102306 set_fs(KERNEL_DS);
102307 - t->compat_to_user(out, in);
102308 + t->compat_to_user((void __force_user *)out, in);
102309 set_fs(old_fs);
102310 ret = nla_put(skb, NFTA_TARGET_INFO, XT_ALIGN(t->targetsize), out);
102311 kfree(out);
102312 @@ -403,7 +403,7 @@ match_dump_info(struct sk_buff *skb, const struct xt_match *m, const void *in)
102313 /* We want to reuse existing compat_to_user */
102314 old_fs = get_fs();
102315 set_fs(KERNEL_DS);
102316 - m->compat_to_user(out, in);
102317 + m->compat_to_user((void __force_user *)out, in);
102318 set_fs(old_fs);
102319 ret = nla_put(skb, NFTA_MATCH_INFO, XT_ALIGN(m->matchsize), out);
102320 kfree(out);
102321 diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
102322 new file mode 100644
102323 index 0000000..c566332
102324 --- /dev/null
102325 +++ b/net/netfilter/xt_gradm.c
102326 @@ -0,0 +1,51 @@
102327 +/*
102328 + * gradm match for netfilter
102329 + * Copyright © Zbigniew Krzystolik, 2010
102330 + *
102331 + * This program is free software; you can redistribute it and/or modify
102332 + * it under the terms of the GNU General Public License; either version
102333 + * 2 or 3 as published by the Free Software Foundation.
102334 + */
102335 +#include <linux/module.h>
102336 +#include <linux/moduleparam.h>
102337 +#include <linux/skbuff.h>
102338 +#include <linux/netfilter/x_tables.h>
102339 +#include <linux/grsecurity.h>
102340 +#include <linux/netfilter/xt_gradm.h>
102341 +
102342 +static bool
102343 +gradm_mt(const struct sk_buff *skb, struct xt_action_param *par)
102344 +{
102345 + const struct xt_gradm_mtinfo *info = par->matchinfo;
102346 + bool retval = false;
102347 + if (gr_acl_is_enabled())
102348 + retval = true;
102349 + return retval ^ info->invflags;
102350 +}
102351 +
102352 +static struct xt_match gradm_mt_reg __read_mostly = {
102353 + .name = "gradm",
102354 + .revision = 0,
102355 + .family = NFPROTO_UNSPEC,
102356 + .match = gradm_mt,
102357 + .matchsize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
102358 + .me = THIS_MODULE,
102359 +};
102360 +
102361 +static int __init gradm_mt_init(void)
102362 +{
102363 + return xt_register_match(&gradm_mt_reg);
102364 +}
102365 +
102366 +static void __exit gradm_mt_exit(void)
102367 +{
102368 + xt_unregister_match(&gradm_mt_reg);
102369 +}
102370 +
102371 +module_init(gradm_mt_init);
102372 +module_exit(gradm_mt_exit);
102373 +MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu@destrukcja.pl>");
102374 +MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match");
102375 +MODULE_LICENSE("GPL");
102376 +MODULE_ALIAS("ipt_gradm");
102377 +MODULE_ALIAS("ip6t_gradm");
102378 diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
102379 index a3910fc..2d2ba14 100644
102380 --- a/net/netfilter/xt_hashlimit.c
102381 +++ b/net/netfilter/xt_hashlimit.c
102382 @@ -870,11 +870,11 @@ static int __net_init hashlimit_proc_net_init(struct net *net)
102383 {
102384 struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
102385
102386 - hashlimit_net->ipt_hashlimit = proc_mkdir("ipt_hashlimit", net->proc_net);
102387 + hashlimit_net->ipt_hashlimit = proc_mkdir_restrict("ipt_hashlimit", net->proc_net);
102388 if (!hashlimit_net->ipt_hashlimit)
102389 return -ENOMEM;
102390 #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
102391 - hashlimit_net->ip6t_hashlimit = proc_mkdir("ip6t_hashlimit", net->proc_net);
102392 + hashlimit_net->ip6t_hashlimit = proc_mkdir_restrict("ip6t_hashlimit", net->proc_net);
102393 if (!hashlimit_net->ip6t_hashlimit) {
102394 remove_proc_entry("ipt_hashlimit", net->proc_net);
102395 return -ENOMEM;
102396 diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
102397 index 1e657cf..1eb1c34 100644
102398 --- a/net/netfilter/xt_recent.c
102399 +++ b/net/netfilter/xt_recent.c
102400 @@ -618,7 +618,7 @@ static int __net_init recent_proc_net_init(struct net *net)
102401 {
102402 struct recent_net *recent_net = recent_pernet(net);
102403
102404 - recent_net->xt_recent = proc_mkdir("xt_recent", net->proc_net);
102405 + recent_net->xt_recent = proc_mkdir_restrict("xt_recent", net->proc_net);
102406 if (!recent_net->xt_recent)
102407 return -ENOMEM;
102408 return 0;
102409 diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
102410 index 11de55e..f25e448 100644
102411 --- a/net/netfilter/xt_statistic.c
102412 +++ b/net/netfilter/xt_statistic.c
102413 @@ -19,7 +19,7 @@
102414 #include <linux/module.h>
102415
102416 struct xt_statistic_priv {
102417 - atomic_t count;
102418 + atomic_unchecked_t count;
102419 } ____cacheline_aligned_in_smp;
102420
102421 MODULE_LICENSE("GPL");
102422 @@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
102423 break;
102424 case XT_STATISTIC_MODE_NTH:
102425 do {
102426 - oval = atomic_read(&info->master->count);
102427 + oval = atomic_read_unchecked(&info->master->count);
102428 nval = (oval == info->u.nth.every) ? 0 : oval + 1;
102429 - } while (atomic_cmpxchg(&info->master->count, oval, nval) != oval);
102430 + } while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval);
102431 if (nval == 0)
102432 ret = !ret;
102433 break;
102434 @@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par)
102435 info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
102436 if (info->master == NULL)
102437 return -ENOMEM;
102438 - atomic_set(&info->master->count, info->u.nth.count);
102439 + atomic_set_unchecked(&info->master->count, info->u.nth.count);
102440
102441 return 0;
102442 }
102443 diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
102444 index f22757a..daf62a2 100644
102445 --- a/net/netlink/af_netlink.c
102446 +++ b/net/netlink/af_netlink.c
102447 @@ -257,7 +257,7 @@ static void netlink_overrun(struct sock *sk)
102448 sk->sk_error_report(sk);
102449 }
102450 }
102451 - atomic_inc(&sk->sk_drops);
102452 + atomic_inc_unchecked(&sk->sk_drops);
102453 }
102454
102455 static void netlink_rcv_wake(struct sock *sk)
102456 @@ -3028,7 +3028,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
102457 sk_wmem_alloc_get(s),
102458 nlk->cb_running,
102459 atomic_read(&s->sk_refcnt),
102460 - atomic_read(&s->sk_drops),
102461 + atomic_read_unchecked(&s->sk_drops),
102462 sock_i_ino(s)
102463 );
102464
102465 diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
102466 index ede50d1..d2468e6 100644
102467 --- a/net/netrom/af_netrom.c
102468 +++ b/net/netrom/af_netrom.c
102469 @@ -850,7 +850,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
102470 *uaddr_len = sizeof(struct full_sockaddr_ax25);
102471 } else {
102472 sax->fsa_ax25.sax25_family = AF_NETROM;
102473 - sax->fsa_ax25.sax25_ndigis = 0;
102474 sax->fsa_ax25.sax25_call = nr->source_addr;
102475 *uaddr_len = sizeof(struct sockaddr_ax25);
102476 }
102477 diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
102478 index b85c67c..27c3368 100644
102479 --- a/net/packet/af_packet.c
102480 +++ b/net/packet/af_packet.c
102481 @@ -275,7 +275,7 @@ static int packet_direct_xmit(struct sk_buff *skb)
102482
102483 return ret;
102484 drop:
102485 - atomic_long_inc(&dev->tx_dropped);
102486 + atomic_long_inc_unchecked(&dev->tx_dropped);
102487 kfree_skb(skb);
102488 return NET_XMIT_DROP;
102489 }
102490 @@ -1845,7 +1845,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
102491
102492 spin_lock(&sk->sk_receive_queue.lock);
102493 po->stats.stats1.tp_packets++;
102494 - skb->dropcount = atomic_read(&sk->sk_drops);
102495 + skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
102496 __skb_queue_tail(&sk->sk_receive_queue, skb);
102497 spin_unlock(&sk->sk_receive_queue.lock);
102498 sk->sk_data_ready(sk);
102499 @@ -1854,7 +1854,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
102500 drop_n_acct:
102501 spin_lock(&sk->sk_receive_queue.lock);
102502 po->stats.stats1.tp_drops++;
102503 - atomic_inc(&sk->sk_drops);
102504 + atomic_inc_unchecked(&sk->sk_drops);
102505 spin_unlock(&sk->sk_receive_queue.lock);
102506
102507 drop_n_restore:
102508 @@ -3459,7 +3459,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
102509 case PACKET_HDRLEN:
102510 if (len > sizeof(int))
102511 len = sizeof(int);
102512 - if (copy_from_user(&val, optval, len))
102513 + if (len > sizeof(val) || copy_from_user(&val, optval, len))
102514 return -EFAULT;
102515 switch (val) {
102516 case TPACKET_V1:
102517 @@ -3505,7 +3505,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
102518 len = lv;
102519 if (put_user(len, optlen))
102520 return -EFAULT;
102521 - if (copy_to_user(optval, data, len))
102522 + if (len > sizeof(st) || copy_to_user(optval, data, len))
102523 return -EFAULT;
102524 return 0;
102525 }
102526 diff --git a/net/phonet/pep.c b/net/phonet/pep.c
102527 index 70a547e..23477fe 100644
102528 --- a/net/phonet/pep.c
102529 +++ b/net/phonet/pep.c
102530 @@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
102531
102532 case PNS_PEP_CTRL_REQ:
102533 if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
102534 - atomic_inc(&sk->sk_drops);
102535 + atomic_inc_unchecked(&sk->sk_drops);
102536 break;
102537 }
102538 __skb_pull(skb, 4);
102539 @@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
102540 }
102541
102542 if (pn->rx_credits == 0) {
102543 - atomic_inc(&sk->sk_drops);
102544 + atomic_inc_unchecked(&sk->sk_drops);
102545 err = -ENOBUFS;
102546 break;
102547 }
102548 @@ -579,7 +579,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
102549 }
102550
102551 if (pn->rx_credits == 0) {
102552 - atomic_inc(&sk->sk_drops);
102553 + atomic_inc_unchecked(&sk->sk_drops);
102554 err = NET_RX_DROP;
102555 break;
102556 }
102557 diff --git a/net/phonet/socket.c b/net/phonet/socket.c
102558 index 008214a..bb68240 100644
102559 --- a/net/phonet/socket.c
102560 +++ b/net/phonet/socket.c
102561 @@ -611,7 +611,7 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
102562 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
102563 sock_i_ino(sk),
102564 atomic_read(&sk->sk_refcnt), sk,
102565 - atomic_read(&sk->sk_drops));
102566 + atomic_read_unchecked(&sk->sk_drops));
102567 }
102568 seq_pad(seq, '\n');
102569 return 0;
102570 diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c
102571 index c02a8c4..3c5b600 100644
102572 --- a/net/phonet/sysctl.c
102573 +++ b/net/phonet/sysctl.c
102574 @@ -67,7 +67,7 @@ static int proc_local_port_range(struct ctl_table *table, int write,
102575 {
102576 int ret;
102577 int range[2] = {local_port_range[0], local_port_range[1]};
102578 - struct ctl_table tmp = {
102579 + ctl_table_no_const tmp = {
102580 .data = &range,
102581 .maxlen = sizeof(range),
102582 .mode = table->mode,
102583 diff --git a/net/rds/cong.c b/net/rds/cong.c
102584 index e5b65ac..f3b6fb7 100644
102585 --- a/net/rds/cong.c
102586 +++ b/net/rds/cong.c
102587 @@ -78,7 +78,7 @@
102588 * finds that the saved generation number is smaller than the global generation
102589 * number, it wakes up the process.
102590 */
102591 -static atomic_t rds_cong_generation = ATOMIC_INIT(0);
102592 +static atomic_unchecked_t rds_cong_generation = ATOMIC_INIT(0);
102593
102594 /*
102595 * Congestion monitoring
102596 @@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask)
102597 rdsdebug("waking map %p for %pI4\n",
102598 map, &map->m_addr);
102599 rds_stats_inc(s_cong_update_received);
102600 - atomic_inc(&rds_cong_generation);
102601 + atomic_inc_unchecked(&rds_cong_generation);
102602 if (waitqueue_active(&map->m_waitq))
102603 wake_up(&map->m_waitq);
102604 if (waitqueue_active(&rds_poll_waitq))
102605 @@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated);
102606
102607 int rds_cong_updated_since(unsigned long *recent)
102608 {
102609 - unsigned long gen = atomic_read(&rds_cong_generation);
102610 + unsigned long gen = atomic_read_unchecked(&rds_cong_generation);
102611
102612 if (likely(*recent == gen))
102613 return 0;
102614 diff --git a/net/rds/ib.h b/net/rds/ib.h
102615 index 7280ab8..e04f4ea 100644
102616 --- a/net/rds/ib.h
102617 +++ b/net/rds/ib.h
102618 @@ -128,7 +128,7 @@ struct rds_ib_connection {
102619 /* sending acks */
102620 unsigned long i_ack_flags;
102621 #ifdef KERNEL_HAS_ATOMIC64
102622 - atomic64_t i_ack_next; /* next ACK to send */
102623 + atomic64_unchecked_t i_ack_next; /* next ACK to send */
102624 #else
102625 spinlock_t i_ack_lock; /* protect i_ack_next */
102626 u64 i_ack_next; /* next ACK to send */
102627 diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
102628 index 31b74f5..dc1fbfa 100644
102629 --- a/net/rds/ib_cm.c
102630 +++ b/net/rds/ib_cm.c
102631 @@ -717,7 +717,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn)
102632 /* Clear the ACK state */
102633 clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
102634 #ifdef KERNEL_HAS_ATOMIC64
102635 - atomic64_set(&ic->i_ack_next, 0);
102636 + atomic64_set_unchecked(&ic->i_ack_next, 0);
102637 #else
102638 ic->i_ack_next = 0;
102639 #endif
102640 diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
102641 index b7ebe23..b6352f6 100644
102642 --- a/net/rds/ib_recv.c
102643 +++ b/net/rds/ib_recv.c
102644 @@ -596,7 +596,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
102645 static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
102646 int ack_required)
102647 {
102648 - atomic64_set(&ic->i_ack_next, seq);
102649 + atomic64_set_unchecked(&ic->i_ack_next, seq);
102650 if (ack_required) {
102651 smp_mb__before_clear_bit();
102652 set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
102653 @@ -608,7 +608,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
102654 clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
102655 smp_mb__after_clear_bit();
102656
102657 - return atomic64_read(&ic->i_ack_next);
102658 + return atomic64_read_unchecked(&ic->i_ack_next);
102659 }
102660 #endif
102661
102662 diff --git a/net/rds/iw.h b/net/rds/iw.h
102663 index 04ce3b1..48119a6 100644
102664 --- a/net/rds/iw.h
102665 +++ b/net/rds/iw.h
102666 @@ -134,7 +134,7 @@ struct rds_iw_connection {
102667 /* sending acks */
102668 unsigned long i_ack_flags;
102669 #ifdef KERNEL_HAS_ATOMIC64
102670 - atomic64_t i_ack_next; /* next ACK to send */
102671 + atomic64_unchecked_t i_ack_next; /* next ACK to send */
102672 #else
102673 spinlock_t i_ack_lock; /* protect i_ack_next */
102674 u64 i_ack_next; /* next ACK to send */
102675 diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
102676 index a91e1db..cf3053f 100644
102677 --- a/net/rds/iw_cm.c
102678 +++ b/net/rds/iw_cm.c
102679 @@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn)
102680 /* Clear the ACK state */
102681 clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
102682 #ifdef KERNEL_HAS_ATOMIC64
102683 - atomic64_set(&ic->i_ack_next, 0);
102684 + atomic64_set_unchecked(&ic->i_ack_next, 0);
102685 #else
102686 ic->i_ack_next = 0;
102687 #endif
102688 diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c
102689 index 4503335..db566b4 100644
102690 --- a/net/rds/iw_recv.c
102691 +++ b/net/rds/iw_recv.c
102692 @@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
102693 static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
102694 int ack_required)
102695 {
102696 - atomic64_set(&ic->i_ack_next, seq);
102697 + atomic64_set_unchecked(&ic->i_ack_next, seq);
102698 if (ack_required) {
102699 smp_mb__before_clear_bit();
102700 set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
102701 @@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
102702 clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
102703 smp_mb__after_clear_bit();
102704
102705 - return atomic64_read(&ic->i_ack_next);
102706 + return atomic64_read_unchecked(&ic->i_ack_next);
102707 }
102708 #endif
102709
102710 diff --git a/net/rds/rds.h b/net/rds/rds.h
102711 index 48f8ffc..0ef3eec 100644
102712 --- a/net/rds/rds.h
102713 +++ b/net/rds/rds.h
102714 @@ -449,7 +449,7 @@ struct rds_transport {
102715 void (*sync_mr)(void *trans_private, int direction);
102716 void (*free_mr)(void *trans_private, int invalidate);
102717 void (*flush_mrs)(void);
102718 -};
102719 +} __do_const;
102720
102721 struct rds_sock {
102722 struct sock rs_sk;
102723 diff --git a/net/rds/tcp.c b/net/rds/tcp.c
102724 index edac9ef..16bcb98 100644
102725 --- a/net/rds/tcp.c
102726 +++ b/net/rds/tcp.c
102727 @@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock)
102728 int val = 1;
102729
102730 set_fs(KERNEL_DS);
102731 - sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
102732 + sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val,
102733 sizeof(val));
102734 set_fs(oldfs);
102735 }
102736 diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
102737 index 81cf5a4..b5826ff 100644
102738 --- a/net/rds/tcp_send.c
102739 +++ b/net/rds/tcp_send.c
102740 @@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val)
102741
102742 oldfs = get_fs();
102743 set_fs(KERNEL_DS);
102744 - sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
102745 + sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val,
102746 sizeof(val));
102747 set_fs(oldfs);
102748 }
102749 diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
102750 index 7b16704..9628ec6 100644
102751 --- a/net/rxrpc/af_rxrpc.c
102752 +++ b/net/rxrpc/af_rxrpc.c
102753 @@ -40,7 +40,7 @@ static const struct proto_ops rxrpc_rpc_ops;
102754 __be32 rxrpc_epoch;
102755
102756 /* current debugging ID */
102757 -atomic_t rxrpc_debug_id;
102758 +atomic_unchecked_t rxrpc_debug_id;
102759
102760 /* count of skbs currently in use */
102761 atomic_t rxrpc_n_skbs;
102762 diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
102763 index c6be17a..2a6200a 100644
102764 --- a/net/rxrpc/ar-ack.c
102765 +++ b/net/rxrpc/ar-ack.c
102766 @@ -223,7 +223,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
102767
102768 _enter("{%d,%d,%d,%d},",
102769 call->acks_hard, call->acks_unacked,
102770 - atomic_read(&call->sequence),
102771 + atomic_read_unchecked(&call->sequence),
102772 CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
102773
102774 stop = 0;
102775 @@ -247,7 +247,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
102776
102777 /* each Tx packet has a new serial number */
102778 sp->hdr.serial =
102779 - htonl(atomic_inc_return(&call->conn->serial));
102780 + htonl(atomic_inc_return_unchecked(&call->conn->serial));
102781
102782 hdr = (struct rxrpc_header *) txb->head;
102783 hdr->serial = sp->hdr.serial;
102784 @@ -451,7 +451,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
102785 */
102786 static void rxrpc_clear_tx_window(struct rxrpc_call *call)
102787 {
102788 - rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
102789 + rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence));
102790 }
102791
102792 /*
102793 @@ -677,7 +677,7 @@ process_further:
102794
102795 latest = ntohl(sp->hdr.serial);
102796 hard = ntohl(ack.firstPacket);
102797 - tx = atomic_read(&call->sequence);
102798 + tx = atomic_read_unchecked(&call->sequence);
102799
102800 _proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
102801 latest,
102802 @@ -1209,7 +1209,7 @@ void rxrpc_process_call(struct work_struct *work)
102803 goto maybe_reschedule;
102804
102805 send_ACK_with_skew:
102806 - ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
102807 + ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) -
102808 ntohl(ack.serial));
102809 send_ACK:
102810 mtu = call->conn->trans->peer->if_mtu;
102811 @@ -1221,7 +1221,7 @@ send_ACK:
102812 ackinfo.rxMTU = htonl(rxrpc_rx_mtu);
102813 ackinfo.jumbo_max = htonl(rxrpc_rx_jumbo_max);
102814
102815 - hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
102816 + hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
102817 _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
102818 ntohl(hdr.serial),
102819 ntohs(ack.maxSkew),
102820 @@ -1239,7 +1239,7 @@ send_ACK:
102821 send_message:
102822 _debug("send message");
102823
102824 - hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
102825 + hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
102826 _proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial));
102827 send_message_2:
102828
102829 diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c
102830 index a9e05db..194e793 100644
102831 --- a/net/rxrpc/ar-call.c
102832 +++ b/net/rxrpc/ar-call.c
102833 @@ -232,7 +232,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
102834 spin_lock_init(&call->lock);
102835 rwlock_init(&call->state_lock);
102836 atomic_set(&call->usage, 1);
102837 - call->debug_id = atomic_inc_return(&rxrpc_debug_id);
102838 + call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
102839 call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
102840
102841 memset(&call->sock_node, 0xed, sizeof(call->sock_node));
102842 diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
102843 index 6631f4f..bfdf056 100644
102844 --- a/net/rxrpc/ar-connection.c
102845 +++ b/net/rxrpc/ar-connection.c
102846 @@ -210,7 +210,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
102847 rwlock_init(&conn->lock);
102848 spin_lock_init(&conn->state_lock);
102849 atomic_set(&conn->usage, 1);
102850 - conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
102851 + conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
102852 conn->avail_calls = RXRPC_MAXCALLS;
102853 conn->size_align = 4;
102854 conn->header_size = sizeof(struct rxrpc_header);
102855 diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
102856 index e7ed43a..6afa140 100644
102857 --- a/net/rxrpc/ar-connevent.c
102858 +++ b/net/rxrpc/ar-connevent.c
102859 @@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
102860
102861 len = iov[0].iov_len + iov[1].iov_len;
102862
102863 - hdr.serial = htonl(atomic_inc_return(&conn->serial));
102864 + hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
102865 _proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
102866
102867 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
102868 diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
102869 index 63b21e5..330232e 100644
102870 --- a/net/rxrpc/ar-input.c
102871 +++ b/net/rxrpc/ar-input.c
102872 @@ -338,9 +338,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
102873 /* track the latest serial number on this connection for ACK packet
102874 * information */
102875 serial = ntohl(sp->hdr.serial);
102876 - hi_serial = atomic_read(&call->conn->hi_serial);
102877 + hi_serial = atomic_read_unchecked(&call->conn->hi_serial);
102878 while (serial > hi_serial)
102879 - hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
102880 + hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial,
102881 serial);
102882
102883 /* request ACK generation for any ACK or DATA packet that requests
102884 diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
102885 index ba9fd36..9bbfe01 100644
102886 --- a/net/rxrpc/ar-internal.h
102887 +++ b/net/rxrpc/ar-internal.h
102888 @@ -272,8 +272,8 @@ struct rxrpc_connection {
102889 int error; /* error code for local abort */
102890 int debug_id; /* debug ID for printks */
102891 unsigned int call_counter; /* call ID counter */
102892 - atomic_t serial; /* packet serial number counter */
102893 - atomic_t hi_serial; /* highest serial number received */
102894 + atomic_unchecked_t serial; /* packet serial number counter */
102895 + atomic_unchecked_t hi_serial; /* highest serial number received */
102896 u8 avail_calls; /* number of calls available */
102897 u8 size_align; /* data size alignment (for security) */
102898 u8 header_size; /* rxrpc + security header size */
102899 @@ -346,7 +346,7 @@ struct rxrpc_call {
102900 spinlock_t lock;
102901 rwlock_t state_lock; /* lock for state transition */
102902 atomic_t usage;
102903 - atomic_t sequence; /* Tx data packet sequence counter */
102904 + atomic_unchecked_t sequence; /* Tx data packet sequence counter */
102905 u32 abort_code; /* local/remote abort code */
102906 enum { /* current state of call */
102907 RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */
102908 @@ -431,7 +431,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
102909 */
102910 extern atomic_t rxrpc_n_skbs;
102911 extern __be32 rxrpc_epoch;
102912 -extern atomic_t rxrpc_debug_id;
102913 +extern atomic_unchecked_t rxrpc_debug_id;
102914 extern struct workqueue_struct *rxrpc_workqueue;
102915
102916 /*
102917 diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c
102918 index 87f7135..74d3703 100644
102919 --- a/net/rxrpc/ar-local.c
102920 +++ b/net/rxrpc/ar-local.c
102921 @@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
102922 spin_lock_init(&local->lock);
102923 rwlock_init(&local->services_lock);
102924 atomic_set(&local->usage, 1);
102925 - local->debug_id = atomic_inc_return(&rxrpc_debug_id);
102926 + local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
102927 memcpy(&local->srx, srx, sizeof(*srx));
102928 }
102929
102930 diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
102931 index 0b4b9a7..966ffbb 100644
102932 --- a/net/rxrpc/ar-output.c
102933 +++ b/net/rxrpc/ar-output.c
102934 @@ -682,14 +682,14 @@ static int rxrpc_send_data(struct kiocb *iocb,
102935 memset(skb_put(skb, pad), 0, pad);
102936 }
102937
102938 - seq = atomic_inc_return(&call->sequence);
102939 + seq = atomic_inc_return_unchecked(&call->sequence);
102940
102941 sp->hdr.epoch = conn->epoch;
102942 sp->hdr.cid = call->cid;
102943 sp->hdr.callNumber = call->call_id;
102944 sp->hdr.seq = htonl(seq);
102945 sp->hdr.serial =
102946 - htonl(atomic_inc_return(&conn->serial));
102947 + htonl(atomic_inc_return_unchecked(&conn->serial));
102948 sp->hdr.type = RXRPC_PACKET_TYPE_DATA;
102949 sp->hdr.userStatus = 0;
102950 sp->hdr.securityIndex = conn->security_ix;
102951 diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
102952 index bebaa43..2644591 100644
102953 --- a/net/rxrpc/ar-peer.c
102954 +++ b/net/rxrpc/ar-peer.c
102955 @@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
102956 INIT_LIST_HEAD(&peer->error_targets);
102957 spin_lock_init(&peer->lock);
102958 atomic_set(&peer->usage, 1);
102959 - peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
102960 + peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
102961 memcpy(&peer->srx, srx, sizeof(*srx));
102962
102963 rxrpc_assess_MTU_size(peer);
102964 diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
102965 index 38047f7..9f48511 100644
102966 --- a/net/rxrpc/ar-proc.c
102967 +++ b/net/rxrpc/ar-proc.c
102968 @@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
102969 atomic_read(&conn->usage),
102970 rxrpc_conn_states[conn->state],
102971 key_serial(conn->key),
102972 - atomic_read(&conn->serial),
102973 - atomic_read(&conn->hi_serial));
102974 + atomic_read_unchecked(&conn->serial),
102975 + atomic_read_unchecked(&conn->hi_serial));
102976
102977 return 0;
102978 }
102979 diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c
102980 index 1976dec..aa70be5 100644
102981 --- a/net/rxrpc/ar-transport.c
102982 +++ b/net/rxrpc/ar-transport.c
102983 @@ -51,7 +51,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
102984 spin_lock_init(&trans->client_lock);
102985 rwlock_init(&trans->conn_lock);
102986 atomic_set(&trans->usage, 1);
102987 - trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
102988 + trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
102989
102990 if (peer->srx.transport.family == AF_INET) {
102991 switch (peer->srx.transport_type) {
102992 diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
102993 index f226709..0e735a8 100644
102994 --- a/net/rxrpc/rxkad.c
102995 +++ b/net/rxrpc/rxkad.c
102996 @@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn)
102997
102998 len = iov[0].iov_len + iov[1].iov_len;
102999
103000 - hdr.serial = htonl(atomic_inc_return(&conn->serial));
103001 + hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
103002 _proto("Tx CHALLENGE %%%u", ntohl(hdr.serial));
103003
103004 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
103005 @@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn,
103006
103007 len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
103008
103009 - hdr->serial = htonl(atomic_inc_return(&conn->serial));
103010 + hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial));
103011 _proto("Tx RESPONSE %%%u", ntohl(hdr->serial));
103012
103013 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len);
103014 diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
103015 index e1543b0..7ce8bd0 100644
103016 --- a/net/sched/sch_generic.c
103017 +++ b/net/sched/sch_generic.c
103018 @@ -310,7 +310,7 @@ void netif_carrier_on(struct net_device *dev)
103019 if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
103020 if (dev->reg_state == NETREG_UNINITIALIZED)
103021 return;
103022 - atomic_inc(&dev->carrier_changes);
103023 + atomic_inc_unchecked(&dev->carrier_changes);
103024 linkwatch_fire_event(dev);
103025 if (netif_running(dev))
103026 __netdev_watchdog_up(dev);
103027 @@ -329,7 +329,7 @@ void netif_carrier_off(struct net_device *dev)
103028 if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
103029 if (dev->reg_state == NETREG_UNINITIALIZED)
103030 return;
103031 - atomic_inc(&dev->carrier_changes);
103032 + atomic_inc_unchecked(&dev->carrier_changes);
103033 linkwatch_fire_event(dev);
103034 }
103035 }
103036 diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
103037 index 2b1738e..a9d0fc9 100644
103038 --- a/net/sctp/ipv6.c
103039 +++ b/net/sctp/ipv6.c
103040 @@ -966,7 +966,7 @@ static const struct inet6_protocol sctpv6_protocol = {
103041 .flags = INET6_PROTO_NOPOLICY | INET6_PROTO_FINAL,
103042 };
103043
103044 -static struct sctp_af sctp_af_inet6 = {
103045 +static struct sctp_af sctp_af_inet6 __read_only = {
103046 .sa_family = AF_INET6,
103047 .sctp_xmit = sctp_v6_xmit,
103048 .setsockopt = ipv6_setsockopt,
103049 @@ -998,7 +998,7 @@ static struct sctp_af sctp_af_inet6 = {
103050 #endif
103051 };
103052
103053 -static struct sctp_pf sctp_pf_inet6 = {
103054 +static struct sctp_pf sctp_pf_inet6 __read_only = {
103055 .event_msgname = sctp_inet6_event_msgname,
103056 .skb_msgname = sctp_inet6_skb_msgname,
103057 .af_supported = sctp_inet6_af_supported,
103058 @@ -1023,7 +1023,7 @@ void sctp_v6_pf_init(void)
103059
103060 void sctp_v6_pf_exit(void)
103061 {
103062 - list_del(&sctp_af_inet6.list);
103063 + pax_list_del(&sctp_af_inet6.list);
103064 }
103065
103066 /* Initialize IPv6 support and register with socket layer. */
103067 diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
103068 index 44cbb54..4c5dce6 100644
103069 --- a/net/sctp/protocol.c
103070 +++ b/net/sctp/protocol.c
103071 @@ -836,8 +836,10 @@ int sctp_register_af(struct sctp_af *af)
103072 return 0;
103073 }
103074
103075 + pax_open_kernel();
103076 INIT_LIST_HEAD(&af->list);
103077 - list_add_tail(&af->list, &sctp_address_families);
103078 + pax_close_kernel();
103079 + pax_list_add_tail(&af->list, &sctp_address_families);
103080 return 1;
103081 }
103082
103083 @@ -967,7 +969,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
103084
103085 static struct sctp_af sctp_af_inet;
103086
103087 -static struct sctp_pf sctp_pf_inet = {
103088 +static struct sctp_pf sctp_pf_inet __read_only = {
103089 .event_msgname = sctp_inet_event_msgname,
103090 .skb_msgname = sctp_inet_skb_msgname,
103091 .af_supported = sctp_inet_af_supported,
103092 @@ -1039,7 +1041,7 @@ static const struct net_protocol sctp_protocol = {
103093 };
103094
103095 /* IPv4 address related functions. */
103096 -static struct sctp_af sctp_af_inet = {
103097 +static struct sctp_af sctp_af_inet __read_only = {
103098 .sa_family = AF_INET,
103099 .sctp_xmit = sctp_v4_xmit,
103100 .setsockopt = ip_setsockopt,
103101 @@ -1124,7 +1126,7 @@ static void sctp_v4_pf_init(void)
103102
103103 static void sctp_v4_pf_exit(void)
103104 {
103105 - list_del(&sctp_af_inet.list);
103106 + pax_list_del(&sctp_af_inet.list);
103107 }
103108
103109 static int sctp_v4_protosw_init(void)
103110 diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
103111 index fef2acd..c705c4f 100644
103112 --- a/net/sctp/sm_sideeffect.c
103113 +++ b/net/sctp/sm_sideeffect.c
103114 @@ -439,7 +439,7 @@ static void sctp_generate_sack_event(unsigned long data)
103115 sctp_generate_timeout_event(asoc, SCTP_EVENT_TIMEOUT_SACK);
103116 }
103117
103118 -sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
103119 +sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
103120 NULL,
103121 sctp_generate_t1_cookie_event,
103122 sctp_generate_t1_init_event,
103123 diff --git a/net/sctp/socket.c b/net/sctp/socket.c
103124 index fee06b9..eabc613 100644
103125 --- a/net/sctp/socket.c
103126 +++ b/net/sctp/socket.c
103127 @@ -2175,11 +2175,13 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval,
103128 {
103129 struct sctp_association *asoc;
103130 struct sctp_ulpevent *event;
103131 + struct sctp_event_subscribe subscribe;
103132
103133 if (optlen > sizeof(struct sctp_event_subscribe))
103134 return -EINVAL;
103135 - if (copy_from_user(&sctp_sk(sk)->subscribe, optval, optlen))
103136 + if (copy_from_user(&subscribe, optval, optlen))
103137 return -EFAULT;
103138 + sctp_sk(sk)->subscribe = subscribe;
103139
103140 /*
103141 * At the time when a user app subscribes to SCTP_SENDER_DRY_EVENT,
103142 @@ -4259,13 +4261,16 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
103143 static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
103144 int __user *optlen)
103145 {
103146 + struct sctp_event_subscribe subscribe;
103147 +
103148 if (len <= 0)
103149 return -EINVAL;
103150 if (len > sizeof(struct sctp_event_subscribe))
103151 len = sizeof(struct sctp_event_subscribe);
103152 if (put_user(len, optlen))
103153 return -EFAULT;
103154 - if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
103155 + subscribe = sctp_sk(sk)->subscribe;
103156 + if (copy_to_user(optval, &subscribe, len))
103157 return -EFAULT;
103158 return 0;
103159 }
103160 @@ -4283,6 +4288,8 @@ static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
103161 */
103162 static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optval, int __user *optlen)
103163 {
103164 + __u32 autoclose;
103165 +
103166 /* Applicable to UDP-style socket only */
103167 if (sctp_style(sk, TCP))
103168 return -EOPNOTSUPP;
103169 @@ -4291,7 +4298,8 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv
103170 len = sizeof(int);
103171 if (put_user(len, optlen))
103172 return -EFAULT;
103173 - if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int)))
103174 + autoclose = sctp_sk(sk)->autoclose;
103175 + if (copy_to_user(optval, &autoclose, sizeof(int)))
103176 return -EFAULT;
103177 return 0;
103178 }
103179 @@ -4666,12 +4674,15 @@ static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
103180 */
103181 static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)
103182 {
103183 + struct sctp_initmsg initmsg;
103184 +
103185 if (len < sizeof(struct sctp_initmsg))
103186 return -EINVAL;
103187 len = sizeof(struct sctp_initmsg);
103188 if (put_user(len, optlen))
103189 return -EFAULT;
103190 - if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))
103191 + initmsg = sctp_sk(sk)->initmsg;
103192 + if (copy_to_user(optval, &initmsg, len))
103193 return -EFAULT;
103194 return 0;
103195 }
103196 @@ -4712,6 +4723,8 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
103197 addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
103198 if (space_left < addrlen)
103199 return -ENOMEM;
103200 + if (addrlen > sizeof(temp) || addrlen < 0)
103201 + return -EFAULT;
103202 if (copy_to_user(to, &temp, addrlen))
103203 return -EFAULT;
103204 to += addrlen;
103205 diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
103206 index c82fdc1..4ca1f95 100644
103207 --- a/net/sctp/sysctl.c
103208 +++ b/net/sctp/sysctl.c
103209 @@ -308,7 +308,7 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write,
103210 {
103211 struct net *net = current->nsproxy->net_ns;
103212 char tmp[8];
103213 - struct ctl_table tbl;
103214 + ctl_table_no_const tbl;
103215 int ret;
103216 int changed = 0;
103217 char *none = "none";
103218 @@ -355,7 +355,7 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write,
103219 {
103220 struct net *net = current->nsproxy->net_ns;
103221 int new_value;
103222 - struct ctl_table tbl;
103223 + ctl_table_no_const tbl;
103224 unsigned int min = *(unsigned int *) ctl->extra1;
103225 unsigned int max = *(unsigned int *) ctl->extra2;
103226 int ret;
103227 @@ -382,7 +382,7 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write,
103228 {
103229 struct net *net = current->nsproxy->net_ns;
103230 int new_value;
103231 - struct ctl_table tbl;
103232 + ctl_table_no_const tbl;
103233 unsigned int min = *(unsigned int *) ctl->extra1;
103234 unsigned int max = *(unsigned int *) ctl->extra2;
103235 int ret;
103236 @@ -408,7 +408,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
103237 loff_t *ppos)
103238 {
103239 struct net *net = current->nsproxy->net_ns;
103240 - struct ctl_table tbl;
103241 + ctl_table_no_const tbl;
103242 int new_value, ret;
103243
103244 memset(&tbl, 0, sizeof(struct ctl_table));
103245 @@ -436,7 +436,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
103246
103247 int sctp_sysctl_net_register(struct net *net)
103248 {
103249 - struct ctl_table *table = sctp_net_table;
103250 + ctl_table_no_const *table = NULL;
103251
103252 if (!net_eq(net, &init_net)) {
103253 int i;
103254 @@ -449,7 +449,10 @@ int sctp_sysctl_net_register(struct net *net)
103255 table[i].data += (char *)(&net->sctp) - (char *)&init_net.sctp;
103256 }
103257
103258 - net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
103259 + if (!net_eq(net, &init_net))
103260 + net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
103261 + else
103262 + net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", sctp_net_table);
103263 return 0;
103264 }
103265
103266 diff --git a/net/socket.c b/net/socket.c
103267 index abf56b2..b8998bc 100644
103268 --- a/net/socket.c
103269 +++ b/net/socket.c
103270 @@ -89,6 +89,7 @@
103271 #include <linux/magic.h>
103272 #include <linux/slab.h>
103273 #include <linux/xattr.h>
103274 +#include <linux/in.h>
103275
103276 #include <asm/uaccess.h>
103277 #include <asm/unistd.h>
103278 @@ -112,6 +113,8 @@ unsigned int sysctl_net_busy_read __read_mostly;
103279 unsigned int sysctl_net_busy_poll __read_mostly;
103280 #endif
103281
103282 +#include <linux/grsock.h>
103283 +
103284 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
103285 static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
103286 unsigned long nr_segs, loff_t pos);
103287 @@ -163,7 +166,7 @@ static const struct file_operations socket_file_ops = {
103288 */
103289
103290 static DEFINE_SPINLOCK(net_family_lock);
103291 -static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
103292 +const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
103293
103294 /*
103295 * Statistics counters of the socket lists
103296 @@ -329,7 +332,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type,
103297 &sockfs_dentry_operations, SOCKFS_MAGIC);
103298 }
103299
103300 -static struct vfsmount *sock_mnt __read_mostly;
103301 +struct vfsmount *sock_mnt __read_mostly;
103302
103303 static struct file_system_type sock_fs_type = {
103304 .name = "sockfs",
103305 @@ -1257,6 +1260,8 @@ int __sock_create(struct net *net, int family, int type, int protocol,
103306 return -EAFNOSUPPORT;
103307 if (type < 0 || type >= SOCK_MAX)
103308 return -EINVAL;
103309 + if (protocol < 0)
103310 + return -EINVAL;
103311
103312 /* Compatibility.
103313
103314 @@ -1277,6 +1282,20 @@ int __sock_create(struct net *net, int family, int type, int protocol,
103315 if (err)
103316 return err;
103317
103318 + if(!kern && !gr_search_socket(family, type, protocol)) {
103319 + if (rcu_access_pointer(net_families[family]) == NULL)
103320 + return -EAFNOSUPPORT;
103321 + else
103322 + return -EACCES;
103323 + }
103324 +
103325 + if (!kern && gr_handle_sock_all(family, type, protocol)) {
103326 + if (rcu_access_pointer(net_families[family]) == NULL)
103327 + return -EAFNOSUPPORT;
103328 + else
103329 + return -EACCES;
103330 + }
103331 +
103332 /*
103333 * Allocate the socket and allow the family to set things up. if
103334 * the protocol is 0, the family is instructed to select an appropriate
103335 @@ -1528,6 +1547,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
103336 if (sock) {
103337 err = move_addr_to_kernel(umyaddr, addrlen, &address);
103338 if (err >= 0) {
103339 + if (gr_handle_sock_server((struct sockaddr *)&address)) {
103340 + err = -EACCES;
103341 + goto error;
103342 + }
103343 + err = gr_search_bind(sock, (struct sockaddr_in *)&address);
103344 + if (err)
103345 + goto error;
103346 +
103347 err = security_socket_bind(sock,
103348 (struct sockaddr *)&address,
103349 addrlen);
103350 @@ -1536,6 +1563,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
103351 (struct sockaddr *)
103352 &address, addrlen);
103353 }
103354 +error:
103355 fput_light(sock->file, fput_needed);
103356 }
103357 return err;
103358 @@ -1559,10 +1587,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
103359 if ((unsigned int)backlog > somaxconn)
103360 backlog = somaxconn;
103361
103362 + if (gr_handle_sock_server_other(sock->sk)) {
103363 + err = -EPERM;
103364 + goto error;
103365 + }
103366 +
103367 + err = gr_search_listen(sock);
103368 + if (err)
103369 + goto error;
103370 +
103371 err = security_socket_listen(sock, backlog);
103372 if (!err)
103373 err = sock->ops->listen(sock, backlog);
103374
103375 +error:
103376 fput_light(sock->file, fput_needed);
103377 }
103378 return err;
103379 @@ -1606,6 +1644,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
103380 newsock->type = sock->type;
103381 newsock->ops = sock->ops;
103382
103383 + if (gr_handle_sock_server_other(sock->sk)) {
103384 + err = -EPERM;
103385 + sock_release(newsock);
103386 + goto out_put;
103387 + }
103388 +
103389 + err = gr_search_accept(sock);
103390 + if (err) {
103391 + sock_release(newsock);
103392 + goto out_put;
103393 + }
103394 +
103395 /*
103396 * We don't need try_module_get here, as the listening socket (sock)
103397 * has the protocol module (sock->ops->owner) held.
103398 @@ -1651,6 +1701,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
103399 fd_install(newfd, newfile);
103400 err = newfd;
103401
103402 + gr_attach_curr_ip(newsock->sk);
103403 +
103404 out_put:
103405 fput_light(sock->file, fput_needed);
103406 out:
103407 @@ -1683,6 +1735,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
103408 int, addrlen)
103409 {
103410 struct socket *sock;
103411 + struct sockaddr *sck;
103412 struct sockaddr_storage address;
103413 int err, fput_needed;
103414
103415 @@ -1693,6 +1746,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
103416 if (err < 0)
103417 goto out_put;
103418
103419 + sck = (struct sockaddr *)&address;
103420 +
103421 + if (gr_handle_sock_client(sck)) {
103422 + err = -EACCES;
103423 + goto out_put;
103424 + }
103425 +
103426 + err = gr_search_connect(sock, (struct sockaddr_in *)sck);
103427 + if (err)
103428 + goto out_put;
103429 +
103430 err =
103431 security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
103432 if (err)
103433 @@ -1774,6 +1838,8 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
103434 * the protocol.
103435 */
103436
103437 +asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, struct sockaddr __user *, int);
103438 +
103439 SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
103440 unsigned int, flags, struct sockaddr __user *, addr,
103441 int, addr_len)
103442 @@ -1840,7 +1906,7 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
103443 struct socket *sock;
103444 struct iovec iov;
103445 struct msghdr msg;
103446 - struct sockaddr_storage address;
103447 + struct sockaddr_storage address = { };
103448 int err, err2;
103449 int fput_needed;
103450
103451 @@ -2066,7 +2132,7 @@ static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
103452 * checking falls down on this.
103453 */
103454 if (copy_from_user(ctl_buf,
103455 - (void __user __force *)msg_sys->msg_control,
103456 + (void __force_user *)msg_sys->msg_control,
103457 ctl_len))
103458 goto out_freectl;
103459 msg_sys->msg_control = ctl_buf;
103460 @@ -2217,7 +2283,7 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
103461 int err, total_len, len;
103462
103463 /* kernel mode address */
103464 - struct sockaddr_storage addr;
103465 + struct sockaddr_storage addr = { };
103466
103467 /* user mode address pointers */
103468 struct sockaddr __user *uaddr;
103469 @@ -2246,7 +2312,7 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
103470 /* Save the user-mode address (verify_iovec will change the
103471 * kernel msghdr to use the kernel address space)
103472 */
103473 - uaddr = (__force void __user *)msg_sys->msg_name;
103474 + uaddr = (void __force_user *)msg_sys->msg_name;
103475 uaddr_len = COMPAT_NAMELEN(msg);
103476 if (MSG_CMSG_COMPAT & flags)
103477 err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
103478 @@ -2887,7 +2953,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
103479 ifr = compat_alloc_user_space(buf_size);
103480 rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8);
103481
103482 - if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
103483 + if (copy_in_user(ifr->ifr_name, ifr32->ifr_name, IFNAMSIZ))
103484 return -EFAULT;
103485
103486 if (put_user(convert_in ? rxnfc : compat_ptr(data),
103487 @@ -2998,7 +3064,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
103488 old_fs = get_fs();
103489 set_fs(KERNEL_DS);
103490 err = dev_ioctl(net, cmd,
103491 - (struct ifreq __user __force *) &kifr);
103492 + (struct ifreq __force_user *) &kifr);
103493 set_fs(old_fs);
103494
103495 return err;
103496 @@ -3091,7 +3157,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
103497
103498 old_fs = get_fs();
103499 set_fs(KERNEL_DS);
103500 - err = dev_ioctl(net, cmd, (void __user __force *)&ifr);
103501 + err = dev_ioctl(net, cmd, (void __force_user *)&ifr);
103502 set_fs(old_fs);
103503
103504 if (cmd == SIOCGIFMAP && !err) {
103505 @@ -3175,7 +3241,7 @@ static int routing_ioctl(struct net *net, struct socket *sock,
103506 ret |= get_user(rtdev, &(ur4->rt_dev));
103507 if (rtdev) {
103508 ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
103509 - r4.rt_dev = (char __user __force *)devname;
103510 + r4.rt_dev = (char __force_user *)devname;
103511 devname[15] = 0;
103512 } else
103513 r4.rt_dev = NULL;
103514 @@ -3402,8 +3468,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
103515 int __user *uoptlen;
103516 int err;
103517
103518 - uoptval = (char __user __force *) optval;
103519 - uoptlen = (int __user __force *) optlen;
103520 + uoptval = (char __force_user *) optval;
103521 + uoptlen = (int __force_user *) optlen;
103522
103523 set_fs(KERNEL_DS);
103524 if (level == SOL_SOCKET)
103525 @@ -3423,7 +3489,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
103526 char __user *uoptval;
103527 int err;
103528
103529 - uoptval = (char __user __force *) optval;
103530 + uoptval = (char __force_user *) optval;
103531
103532 set_fs(KERNEL_DS);
103533 if (level == SOL_SOCKET)
103534 diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
103535 index 0f73f45..a96aa52 100644
103536 --- a/net/sunrpc/auth_gss/svcauth_gss.c
103537 +++ b/net/sunrpc/auth_gss/svcauth_gss.c
103538 @@ -1140,7 +1140,7 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
103539 uint64_t *handle)
103540 {
103541 struct rsc rsci, *rscp = NULL;
103542 - static atomic64_t ctxhctr;
103543 + static atomic64_unchecked_t ctxhctr = ATOMIC64_INIT(0);
103544 long long ctxh;
103545 struct gss_api_mech *gm = NULL;
103546 time_t expiry;
103547 @@ -1151,7 +1151,7 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
103548 status = -ENOMEM;
103549 /* the handle needs to be just a unique id,
103550 * use a static counter */
103551 - ctxh = atomic64_inc_return(&ctxhctr);
103552 + ctxh = atomic64_inc_return_unchecked(&ctxhctr);
103553
103554 /* make a copy for the caller */
103555 *handle = ctxh;
103556 diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
103557 index ae333c1..18521f0 100644
103558 --- a/net/sunrpc/cache.c
103559 +++ b/net/sunrpc/cache.c
103560 @@ -1609,7 +1609,7 @@ static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
103561 struct sunrpc_net *sn;
103562
103563 sn = net_generic(net, sunrpc_net_id);
103564 - cd->u.procfs.proc_ent = proc_mkdir(cd->name, sn->proc_net_rpc);
103565 + cd->u.procfs.proc_ent = proc_mkdir_restrict(cd->name, sn->proc_net_rpc);
103566 if (cd->u.procfs.proc_ent == NULL)
103567 goto out_nomem;
103568 cd->u.procfs.channel_ent = NULL;
103569 diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
103570 index 2e6ab10..3170800 100644
103571 --- a/net/sunrpc/clnt.c
103572 +++ b/net/sunrpc/clnt.c
103573 @@ -1425,7 +1425,9 @@ call_start(struct rpc_task *task)
103574 (RPC_IS_ASYNC(task) ? "async" : "sync"));
103575
103576 /* Increment call count */
103577 - task->tk_msg.rpc_proc->p_count++;
103578 + pax_open_kernel();
103579 + (*(unsigned int *)&task->tk_msg.rpc_proc->p_count)++;
103580 + pax_close_kernel();
103581 clnt->cl_stats->rpccnt++;
103582 task->tk_action = call_reserve;
103583 }
103584 diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
103585 index 25578af..a29298d 100644
103586 --- a/net/sunrpc/sched.c
103587 +++ b/net/sunrpc/sched.c
103588 @@ -261,9 +261,9 @@ static int rpc_wait_bit_killable(void *word)
103589 #if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
103590 static void rpc_task_set_debuginfo(struct rpc_task *task)
103591 {
103592 - static atomic_t rpc_pid;
103593 + static atomic_unchecked_t rpc_pid;
103594
103595 - task->tk_pid = atomic_inc_return(&rpc_pid);
103596 + task->tk_pid = atomic_inc_return_unchecked(&rpc_pid);
103597 }
103598 #else
103599 static inline void rpc_task_set_debuginfo(struct rpc_task *task)
103600 diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
103601 index 5453049..465669a 100644
103602 --- a/net/sunrpc/stats.c
103603 +++ b/net/sunrpc/stats.c
103604 @@ -267,7 +267,7 @@ int rpc_proc_init(struct net *net)
103605
103606 dprintk("RPC: registering /proc/net/rpc\n");
103607 sn = net_generic(net, sunrpc_net_id);
103608 - sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
103609 + sn->proc_net_rpc = proc_mkdir_restrict("rpc", net->proc_net);
103610 if (sn->proc_net_rpc == NULL)
103611 return -ENOMEM;
103612
103613 diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
103614 index 5de6801..b4e330d 100644
103615 --- a/net/sunrpc/svc.c
103616 +++ b/net/sunrpc/svc.c
103617 @@ -1167,7 +1167,9 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
103618 svc_putnl(resv, RPC_SUCCESS);
103619
103620 /* Bump per-procedure stats counter */
103621 - procp->pc_count++;
103622 + pax_open_kernel();
103623 + (*(unsigned int *)&procp->pc_count)++;
103624 + pax_close_kernel();
103625
103626 /* Initialize storage for argp and resp */
103627 memset(rqstp->rq_argp, 0, procp->pc_argsize);
103628 diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
103629 index 621ca7b..59421dd 100644
103630 --- a/net/sunrpc/svcauth_unix.c
103631 +++ b/net/sunrpc/svcauth_unix.c
103632 @@ -414,7 +414,7 @@ struct unix_gid {
103633 struct group_info *gi;
103634 };
103635
103636 -static int unix_gid_hash(kuid_t uid)
103637 +static int __intentional_overflow(-1) unix_gid_hash(kuid_t uid)
103638 {
103639 return hash_long(from_kuid(&init_user_ns, uid), GID_HASHBITS);
103640 }
103641 @@ -470,7 +470,7 @@ static void unix_gid_request(struct cache_detail *cd,
103642 (*bpp)[-1] = '\n';
103643 }
103644
103645 -static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, kuid_t uid);
103646 +static struct unix_gid * __intentional_overflow(-1) unix_gid_lookup(struct cache_detail *cd, kuid_t uid);
103647
103648 static int unix_gid_parse(struct cache_detail *cd,
103649 char *mesg, int mlen)
103650 diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
103651 index c1b6270..05089c1 100644
103652 --- a/net/sunrpc/xprtrdma/svc_rdma.c
103653 +++ b/net/sunrpc/xprtrdma/svc_rdma.c
103654 @@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE;
103655 static unsigned int min_max_inline = 4096;
103656 static unsigned int max_max_inline = 65536;
103657
103658 -atomic_t rdma_stat_recv;
103659 -atomic_t rdma_stat_read;
103660 -atomic_t rdma_stat_write;
103661 -atomic_t rdma_stat_sq_starve;
103662 -atomic_t rdma_stat_rq_starve;
103663 -atomic_t rdma_stat_rq_poll;
103664 -atomic_t rdma_stat_rq_prod;
103665 -atomic_t rdma_stat_sq_poll;
103666 -atomic_t rdma_stat_sq_prod;
103667 +atomic_unchecked_t rdma_stat_recv;
103668 +atomic_unchecked_t rdma_stat_read;
103669 +atomic_unchecked_t rdma_stat_write;
103670 +atomic_unchecked_t rdma_stat_sq_starve;
103671 +atomic_unchecked_t rdma_stat_rq_starve;
103672 +atomic_unchecked_t rdma_stat_rq_poll;
103673 +atomic_unchecked_t rdma_stat_rq_prod;
103674 +atomic_unchecked_t rdma_stat_sq_poll;
103675 +atomic_unchecked_t rdma_stat_sq_prod;
103676
103677 /* Temporary NFS request map and context caches */
103678 struct kmem_cache *svc_rdma_map_cachep;
103679 @@ -110,7 +110,7 @@ static int read_reset_stat(struct ctl_table *table, int write,
103680 len -= *ppos;
103681 if (len > *lenp)
103682 len = *lenp;
103683 - if (len && copy_to_user(buffer, str_buf, len))
103684 + if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len)))
103685 return -EFAULT;
103686 *lenp = len;
103687 *ppos += len;
103688 @@ -151,63 +151,63 @@ static struct ctl_table svcrdma_parm_table[] = {
103689 {
103690 .procname = "rdma_stat_read",
103691 .data = &rdma_stat_read,
103692 - .maxlen = sizeof(atomic_t),
103693 + .maxlen = sizeof(atomic_unchecked_t),
103694 .mode = 0644,
103695 .proc_handler = read_reset_stat,
103696 },
103697 {
103698 .procname = "rdma_stat_recv",
103699 .data = &rdma_stat_recv,
103700 - .maxlen = sizeof(atomic_t),
103701 + .maxlen = sizeof(atomic_unchecked_t),
103702 .mode = 0644,
103703 .proc_handler = read_reset_stat,
103704 },
103705 {
103706 .procname = "rdma_stat_write",
103707 .data = &rdma_stat_write,
103708 - .maxlen = sizeof(atomic_t),
103709 + .maxlen = sizeof(atomic_unchecked_t),
103710 .mode = 0644,
103711 .proc_handler = read_reset_stat,
103712 },
103713 {
103714 .procname = "rdma_stat_sq_starve",
103715 .data = &rdma_stat_sq_starve,
103716 - .maxlen = sizeof(atomic_t),
103717 + .maxlen = sizeof(atomic_unchecked_t),
103718 .mode = 0644,
103719 .proc_handler = read_reset_stat,
103720 },
103721 {
103722 .procname = "rdma_stat_rq_starve",
103723 .data = &rdma_stat_rq_starve,
103724 - .maxlen = sizeof(atomic_t),
103725 + .maxlen = sizeof(atomic_unchecked_t),
103726 .mode = 0644,
103727 .proc_handler = read_reset_stat,
103728 },
103729 {
103730 .procname = "rdma_stat_rq_poll",
103731 .data = &rdma_stat_rq_poll,
103732 - .maxlen = sizeof(atomic_t),
103733 + .maxlen = sizeof(atomic_unchecked_t),
103734 .mode = 0644,
103735 .proc_handler = read_reset_stat,
103736 },
103737 {
103738 .procname = "rdma_stat_rq_prod",
103739 .data = &rdma_stat_rq_prod,
103740 - .maxlen = sizeof(atomic_t),
103741 + .maxlen = sizeof(atomic_unchecked_t),
103742 .mode = 0644,
103743 .proc_handler = read_reset_stat,
103744 },
103745 {
103746 .procname = "rdma_stat_sq_poll",
103747 .data = &rdma_stat_sq_poll,
103748 - .maxlen = sizeof(atomic_t),
103749 + .maxlen = sizeof(atomic_unchecked_t),
103750 .mode = 0644,
103751 .proc_handler = read_reset_stat,
103752 },
103753 {
103754 .procname = "rdma_stat_sq_prod",
103755 .data = &rdma_stat_sq_prod,
103756 - .maxlen = sizeof(atomic_t),
103757 + .maxlen = sizeof(atomic_unchecked_t),
103758 .mode = 0644,
103759 .proc_handler = read_reset_stat,
103760 },
103761 diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
103762 index 8d904e4..b2fc727 100644
103763 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
103764 +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
103765 @@ -504,7 +504,7 @@ next_sge:
103766 svc_rdma_put_context(ctxt, 0);
103767 goto out;
103768 }
103769 - atomic_inc(&rdma_stat_read);
103770 + atomic_inc_unchecked(&rdma_stat_read);
103771
103772 if (read_wr.num_sge < chl_map->ch[ch_no].count) {
103773 chl_map->ch[ch_no].count -= read_wr.num_sge;
103774 @@ -607,7 +607,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
103775 dto_q);
103776 list_del_init(&ctxt->dto_q);
103777 } else {
103778 - atomic_inc(&rdma_stat_rq_starve);
103779 + atomic_inc_unchecked(&rdma_stat_rq_starve);
103780 clear_bit(XPT_DATA, &xprt->xpt_flags);
103781 ctxt = NULL;
103782 }
103783 @@ -627,7 +627,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
103784 dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n",
103785 ctxt, rdma_xprt, rqstp, ctxt->wc_status);
103786 BUG_ON(ctxt->wc_status != IB_WC_SUCCESS);
103787 - atomic_inc(&rdma_stat_recv);
103788 + atomic_inc_unchecked(&rdma_stat_recv);
103789
103790 /* Build up the XDR from the receive buffers. */
103791 rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len);
103792 diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
103793 index 7e024a5..17f13d3 100644
103794 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
103795 +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
103796 @@ -363,7 +363,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
103797 write_wr.wr.rdma.remote_addr = to;
103798
103799 /* Post It */
103800 - atomic_inc(&rdma_stat_write);
103801 + atomic_inc_unchecked(&rdma_stat_write);
103802 if (svc_rdma_send(xprt, &write_wr))
103803 goto err;
103804 return 0;
103805 diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
103806 index 25688fa..dc72003 100644
103807 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
103808 +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
103809 @@ -292,7 +292,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
103810 return;
103811
103812 ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
103813 - atomic_inc(&rdma_stat_rq_poll);
103814 + atomic_inc_unchecked(&rdma_stat_rq_poll);
103815
103816 while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) {
103817 ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
103818 @@ -314,7 +314,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
103819 }
103820
103821 if (ctxt)
103822 - atomic_inc(&rdma_stat_rq_prod);
103823 + atomic_inc_unchecked(&rdma_stat_rq_prod);
103824
103825 set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
103826 /*
103827 @@ -386,7 +386,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
103828 return;
103829
103830 ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
103831 - atomic_inc(&rdma_stat_sq_poll);
103832 + atomic_inc_unchecked(&rdma_stat_sq_poll);
103833 while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
103834 if (wc.status != IB_WC_SUCCESS)
103835 /* Close the transport */
103836 @@ -404,7 +404,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
103837 }
103838
103839 if (ctxt)
103840 - atomic_inc(&rdma_stat_sq_prod);
103841 + atomic_inc_unchecked(&rdma_stat_sq_prod);
103842 }
103843
103844 static void sq_comp_handler(struct ib_cq *cq, void *cq_context)
103845 @@ -1261,7 +1261,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
103846 spin_lock_bh(&xprt->sc_lock);
103847 if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) {
103848 spin_unlock_bh(&xprt->sc_lock);
103849 - atomic_inc(&rdma_stat_sq_starve);
103850 + atomic_inc_unchecked(&rdma_stat_sq_starve);
103851
103852 /* See if we can opportunistically reap SQ WR to make room */
103853 sq_cq_reap(xprt);
103854 diff --git a/net/sysctl_net.c b/net/sysctl_net.c
103855 index e7000be..e3b0ba7 100644
103856 --- a/net/sysctl_net.c
103857 +++ b/net/sysctl_net.c
103858 @@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ctl_table_header *head,
103859 kgid_t root_gid = make_kgid(net->user_ns, 0);
103860
103861 /* Allow network administrator to have same access as root. */
103862 - if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
103863 + if (ns_capable_nolog(net->user_ns, CAP_NET_ADMIN) ||
103864 uid_eq(root_uid, current_euid())) {
103865 int mode = (table->mode >> 6) & 7;
103866 return (mode << 6) | (mode << 3) | mode;
103867 diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
103868 index 6424372..afd36e9 100644
103869 --- a/net/tipc/subscr.c
103870 +++ b/net/tipc/subscr.c
103871 @@ -97,7 +97,7 @@ static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
103872 struct tipc_subscriber *subscriber = sub->subscriber;
103873 struct kvec msg_sect;
103874
103875 - msg_sect.iov_base = (void *)&sub->evt;
103876 + msg_sect.iov_base = &sub->evt;
103877 msg_sect.iov_len = sizeof(struct tipc_event);
103878 sub->evt.event = htohl(event, sub->swap);
103879 sub->evt.found_lower = htohl(found_lower, sub->swap);
103880 diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
103881 index bb7e8ba..9f444c6 100644
103882 --- a/net/unix/af_unix.c
103883 +++ b/net/unix/af_unix.c
103884 @@ -791,6 +791,12 @@ static struct sock *unix_find_other(struct net *net,
103885 err = -ECONNREFUSED;
103886 if (!S_ISSOCK(inode->i_mode))
103887 goto put_fail;
103888 +
103889 + if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
103890 + err = -EACCES;
103891 + goto put_fail;
103892 + }
103893 +
103894 u = unix_find_socket_byinode(inode);
103895 if (!u)
103896 goto put_fail;
103897 @@ -811,6 +817,13 @@ static struct sock *unix_find_other(struct net *net,
103898 if (u) {
103899 struct dentry *dentry;
103900 dentry = unix_sk(u)->path.dentry;
103901 +
103902 + if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) {
103903 + err = -EPERM;
103904 + sock_put(u);
103905 + goto fail;
103906 + }
103907 +
103908 if (dentry)
103909 touch_atime(&unix_sk(u)->path);
103910 } else
103911 @@ -844,12 +857,18 @@ static int unix_mknod(const char *sun_path, umode_t mode, struct path *res)
103912 */
103913 err = security_path_mknod(&path, dentry, mode, 0);
103914 if (!err) {
103915 + if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
103916 + err = -EACCES;
103917 + goto out;
103918 + }
103919 err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0);
103920 if (!err) {
103921 res->mnt = mntget(path.mnt);
103922 res->dentry = dget(dentry);
103923 + gr_handle_create(dentry, path.mnt);
103924 }
103925 }
103926 +out:
103927 done_path_create(&path, dentry);
103928 return err;
103929 }
103930 @@ -2344,9 +2363,13 @@ static int unix_seq_show(struct seq_file *seq, void *v)
103931 seq_puts(seq, "Num RefCount Protocol Flags Type St "
103932 "Inode Path\n");
103933 else {
103934 - struct sock *s = v;
103935 + struct sock *s = v, *peer;
103936 struct unix_sock *u = unix_sk(s);
103937 unix_state_lock(s);
103938 + peer = unix_peer(s);
103939 + unix_state_unlock(s);
103940 +
103941 + unix_state_double_lock(s, peer);
103942
103943 seq_printf(seq, "%pK: %08X %08X %08X %04X %02X %5lu",
103944 s,
103945 @@ -2373,8 +2396,10 @@ static int unix_seq_show(struct seq_file *seq, void *v)
103946 }
103947 for ( ; i < len; i++)
103948 seq_putc(seq, u->addr->name->sun_path[i]);
103949 - }
103950 - unix_state_unlock(s);
103951 + } else if (peer)
103952 + seq_printf(seq, " P%lu", sock_i_ino(peer));
103953 +
103954 + unix_state_double_unlock(s, peer);
103955 seq_putc(seq, '\n');
103956 }
103957
103958 diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
103959 index b3d5150..ff3a837 100644
103960 --- a/net/unix/sysctl_net_unix.c
103961 +++ b/net/unix/sysctl_net_unix.c
103962 @@ -28,7 +28,7 @@ static struct ctl_table unix_table[] = {
103963
103964 int __net_init unix_sysctl_register(struct net *net)
103965 {
103966 - struct ctl_table *table;
103967 + ctl_table_no_const *table;
103968
103969 table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
103970 if (table == NULL)
103971 diff --git a/net/vmw_vsock/vmci_transport_notify.c b/net/vmw_vsock/vmci_transport_notify.c
103972 index 9b7f207..2596621 100644
103973 --- a/net/vmw_vsock/vmci_transport_notify.c
103974 +++ b/net/vmw_vsock/vmci_transport_notify.c
103975 @@ -662,19 +662,19 @@ static void vmci_transport_notify_pkt_process_negotiate(struct sock *sk)
103976
103977 /* Socket control packet based operations. */
103978 struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops = {
103979 - vmci_transport_notify_pkt_socket_init,
103980 - vmci_transport_notify_pkt_socket_destruct,
103981 - vmci_transport_notify_pkt_poll_in,
103982 - vmci_transport_notify_pkt_poll_out,
103983 - vmci_transport_notify_pkt_handle_pkt,
103984 - vmci_transport_notify_pkt_recv_init,
103985 - vmci_transport_notify_pkt_recv_pre_block,
103986 - vmci_transport_notify_pkt_recv_pre_dequeue,
103987 - vmci_transport_notify_pkt_recv_post_dequeue,
103988 - vmci_transport_notify_pkt_send_init,
103989 - vmci_transport_notify_pkt_send_pre_block,
103990 - vmci_transport_notify_pkt_send_pre_enqueue,
103991 - vmci_transport_notify_pkt_send_post_enqueue,
103992 - vmci_transport_notify_pkt_process_request,
103993 - vmci_transport_notify_pkt_process_negotiate,
103994 + .socket_init = vmci_transport_notify_pkt_socket_init,
103995 + .socket_destruct = vmci_transport_notify_pkt_socket_destruct,
103996 + .poll_in = vmci_transport_notify_pkt_poll_in,
103997 + .poll_out = vmci_transport_notify_pkt_poll_out,
103998 + .handle_notify_pkt = vmci_transport_notify_pkt_handle_pkt,
103999 + .recv_init = vmci_transport_notify_pkt_recv_init,
104000 + .recv_pre_block = vmci_transport_notify_pkt_recv_pre_block,
104001 + .recv_pre_dequeue = vmci_transport_notify_pkt_recv_pre_dequeue,
104002 + .recv_post_dequeue = vmci_transport_notify_pkt_recv_post_dequeue,
104003 + .send_init = vmci_transport_notify_pkt_send_init,
104004 + .send_pre_block = vmci_transport_notify_pkt_send_pre_block,
104005 + .send_pre_enqueue = vmci_transport_notify_pkt_send_pre_enqueue,
104006 + .send_post_enqueue = vmci_transport_notify_pkt_send_post_enqueue,
104007 + .process_request = vmci_transport_notify_pkt_process_request,
104008 + .process_negotiate = vmci_transport_notify_pkt_process_negotiate,
104009 };
104010 diff --git a/net/vmw_vsock/vmci_transport_notify_qstate.c b/net/vmw_vsock/vmci_transport_notify_qstate.c
104011 index dc9c792..3089de0 100644
104012 --- a/net/vmw_vsock/vmci_transport_notify_qstate.c
104013 +++ b/net/vmw_vsock/vmci_transport_notify_qstate.c
104014 @@ -420,19 +420,19 @@ vmci_transport_notify_pkt_send_pre_enqueue(
104015
104016 /* Socket always on control packet based operations. */
104017 struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops = {
104018 - vmci_transport_notify_pkt_socket_init,
104019 - vmci_transport_notify_pkt_socket_destruct,
104020 - vmci_transport_notify_pkt_poll_in,
104021 - vmci_transport_notify_pkt_poll_out,
104022 - vmci_transport_notify_pkt_handle_pkt,
104023 - vmci_transport_notify_pkt_recv_init,
104024 - vmci_transport_notify_pkt_recv_pre_block,
104025 - vmci_transport_notify_pkt_recv_pre_dequeue,
104026 - vmci_transport_notify_pkt_recv_post_dequeue,
104027 - vmci_transport_notify_pkt_send_init,
104028 - vmci_transport_notify_pkt_send_pre_block,
104029 - vmci_transport_notify_pkt_send_pre_enqueue,
104030 - vmci_transport_notify_pkt_send_post_enqueue,
104031 - vmci_transport_notify_pkt_process_request,
104032 - vmci_transport_notify_pkt_process_negotiate,
104033 + .socket_init = vmci_transport_notify_pkt_socket_init,
104034 + .socket_destruct = vmci_transport_notify_pkt_socket_destruct,
104035 + .poll_in = vmci_transport_notify_pkt_poll_in,
104036 + .poll_out = vmci_transport_notify_pkt_poll_out,
104037 + .handle_notify_pkt = vmci_transport_notify_pkt_handle_pkt,
104038 + .recv_init = vmci_transport_notify_pkt_recv_init,
104039 + .recv_pre_block = vmci_transport_notify_pkt_recv_pre_block,
104040 + .recv_pre_dequeue = vmci_transport_notify_pkt_recv_pre_dequeue,
104041 + .recv_post_dequeue = vmci_transport_notify_pkt_recv_post_dequeue,
104042 + .send_init = vmci_transport_notify_pkt_send_init,
104043 + .send_pre_block = vmci_transport_notify_pkt_send_pre_block,
104044 + .send_pre_enqueue = vmci_transport_notify_pkt_send_pre_enqueue,
104045 + .send_post_enqueue = vmci_transport_notify_pkt_send_post_enqueue,
104046 + .process_request = vmci_transport_notify_pkt_process_request,
104047 + .process_negotiate = vmci_transport_notify_pkt_process_negotiate,
104048 };
104049 diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
104050 index c8717c1..08539f5 100644
104051 --- a/net/wireless/wext-core.c
104052 +++ b/net/wireless/wext-core.c
104053 @@ -748,8 +748,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
104054 */
104055
104056 /* Support for very large requests */
104057 - if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
104058 - (user_length > descr->max_tokens)) {
104059 + if (user_length > descr->max_tokens) {
104060 /* Allow userspace to GET more than max so
104061 * we can support any size GET requests.
104062 * There is still a limit : -ENOMEM.
104063 @@ -788,22 +787,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
104064 }
104065 }
104066
104067 - if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) {
104068 - /*
104069 - * If this is a GET, but not NOMAX, it means that the extra
104070 - * data is not bounded by userspace, but by max_tokens. Thus
104071 - * set the length to max_tokens. This matches the extra data
104072 - * allocation.
104073 - * The driver should fill it with the number of tokens it
104074 - * provided, and it may check iwp->length rather than having
104075 - * knowledge of max_tokens. If the driver doesn't change the
104076 - * iwp->length, this ioctl just copies back max_token tokens
104077 - * filled with zeroes. Hopefully the driver isn't claiming
104078 - * them to be valid data.
104079 - */
104080 - iwp->length = descr->max_tokens;
104081 - }
104082 -
104083 err = handler(dev, info, (union iwreq_data *) iwp, extra);
104084
104085 iwp->length += essid_compat;
104086 diff --git a/net/x25/sysctl_net_x25.c b/net/x25/sysctl_net_x25.c
104087 index 4323952..a06dfe1 100644
104088 --- a/net/x25/sysctl_net_x25.c
104089 +++ b/net/x25/sysctl_net_x25.c
104090 @@ -70,7 +70,7 @@ static struct ctl_table x25_table[] = {
104091 .mode = 0644,
104092 .proc_handler = proc_dointvec,
104093 },
104094 - { 0, },
104095 + { },
104096 };
104097
104098 void __init x25_register_sysctl(void)
104099 diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c
104100 index 0917f04..f4e3d8c 100644
104101 --- a/net/x25/x25_proc.c
104102 +++ b/net/x25/x25_proc.c
104103 @@ -209,7 +209,7 @@ static const struct file_operations x25_seq_forward_fops = {
104104
104105 int __init x25_proc_init(void)
104106 {
104107 - if (!proc_mkdir("x25", init_net.proc_net))
104108 + if (!proc_mkdir_restrict("x25", init_net.proc_net))
104109 return -ENOMEM;
104110
104111 if (!proc_create("x25/route", S_IRUGO, init_net.proc_net,
104112 diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
104113 index c08fbd1..3d99e85 100644
104114 --- a/net/xfrm/xfrm_policy.c
104115 +++ b/net/xfrm/xfrm_policy.c
104116 @@ -325,7 +325,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
104117 {
104118 policy->walk.dead = 1;
104119
104120 - atomic_inc(&policy->genid);
104121 + atomic_inc_unchecked(&policy->genid);
104122
104123 if (del_timer(&policy->polq.hold_timer))
104124 xfrm_pol_put(policy);
104125 @@ -659,7 +659,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
104126 hlist_add_head(&policy->bydst, chain);
104127 xfrm_pol_hold(policy);
104128 net->xfrm.policy_count[dir]++;
104129 - atomic_inc(&net->xfrm.flow_cache_genid);
104130 + atomic_inc_unchecked(&net->xfrm.flow_cache_genid);
104131
104132 /* After previous checking, family can either be AF_INET or AF_INET6 */
104133 if (policy->family == AF_INET)
104134 @@ -1759,7 +1759,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
104135
104136 xdst->num_pols = num_pols;
104137 memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols);
104138 - xdst->policy_genid = atomic_read(&pols[0]->genid);
104139 + xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid);
104140
104141 return xdst;
104142 }
104143 @@ -2546,10 +2546,11 @@ void xfrm_garbage_collect(struct net *net)
104144 }
104145 EXPORT_SYMBOL(xfrm_garbage_collect);
104146
104147 -static void xfrm_garbage_collect_deferred(struct net *net)
104148 +void xfrm_garbage_collect_deferred(struct net *net)
104149 {
104150 flow_cache_flush_deferred(net);
104151 }
104152 +EXPORT_SYMBOL(xfrm_garbage_collect_deferred);
104153
104154 static void xfrm_init_pmtu(struct dst_entry *dst)
104155 {
104156 @@ -2599,7 +2600,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first)
104157 if (xdst->xfrm_genid != dst->xfrm->genid)
104158 return 0;
104159 if (xdst->num_pols > 0 &&
104160 - xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
104161 + xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid))
104162 return 0;
104163
104164 mtu = dst_mtu(dst->child);
104165 @@ -2687,8 +2688,6 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
104166 dst_ops->link_failure = xfrm_link_failure;
104167 if (likely(dst_ops->neigh_lookup == NULL))
104168 dst_ops->neigh_lookup = xfrm_neigh_lookup;
104169 - if (likely(afinfo->garbage_collect == NULL))
104170 - afinfo->garbage_collect = xfrm_garbage_collect_deferred;
104171 rcu_assign_pointer(xfrm_policy_afinfo[afinfo->family], afinfo);
104172 }
104173 spin_unlock(&xfrm_policy_afinfo_lock);
104174 @@ -2742,7 +2741,6 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
104175 dst_ops->check = NULL;
104176 dst_ops->negative_advice = NULL;
104177 dst_ops->link_failure = NULL;
104178 - afinfo->garbage_collect = NULL;
104179 }
104180 return err;
104181 }
104182 @@ -3137,7 +3135,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol,
104183 sizeof(pol->xfrm_vec[i].saddr));
104184 pol->xfrm_vec[i].encap_family = mp->new_family;
104185 /* flush bundles */
104186 - atomic_inc(&pol->genid);
104187 + atomic_inc_unchecked(&pol->genid);
104188 }
104189 }
104190
104191 diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
104192 index 8e9c781..3972135 100644
104193 --- a/net/xfrm/xfrm_state.c
104194 +++ b/net/xfrm/xfrm_state.c
104195 @@ -173,12 +173,14 @@ int xfrm_register_type(const struct xfrm_type *type, unsigned short family)
104196
104197 if (unlikely(afinfo == NULL))
104198 return -EAFNOSUPPORT;
104199 - typemap = afinfo->type_map;
104200 + typemap = (const struct xfrm_type **)afinfo->type_map;
104201 spin_lock_bh(&xfrm_type_lock);
104202
104203 - if (likely(typemap[type->proto] == NULL))
104204 + if (likely(typemap[type->proto] == NULL)) {
104205 + pax_open_kernel();
104206 typemap[type->proto] = type;
104207 - else
104208 + pax_close_kernel();
104209 + } else
104210 err = -EEXIST;
104211 spin_unlock_bh(&xfrm_type_lock);
104212 xfrm_state_put_afinfo(afinfo);
104213 @@ -194,13 +196,16 @@ int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family)
104214
104215 if (unlikely(afinfo == NULL))
104216 return -EAFNOSUPPORT;
104217 - typemap = afinfo->type_map;
104218 + typemap = (const struct xfrm_type **)afinfo->type_map;
104219 spin_lock_bh(&xfrm_type_lock);
104220
104221 if (unlikely(typemap[type->proto] != type))
104222 err = -ENOENT;
104223 - else
104224 + else {
104225 + pax_open_kernel();
104226 typemap[type->proto] = NULL;
104227 + pax_close_kernel();
104228 + }
104229 spin_unlock_bh(&xfrm_type_lock);
104230 xfrm_state_put_afinfo(afinfo);
104231 return err;
104232 @@ -210,7 +215,6 @@ EXPORT_SYMBOL(xfrm_unregister_type);
104233 static const struct xfrm_type *xfrm_get_type(u8 proto, unsigned short family)
104234 {
104235 struct xfrm_state_afinfo *afinfo;
104236 - const struct xfrm_type **typemap;
104237 const struct xfrm_type *type;
104238 int modload_attempted = 0;
104239
104240 @@ -218,9 +222,8 @@ retry:
104241 afinfo = xfrm_state_get_afinfo(family);
104242 if (unlikely(afinfo == NULL))
104243 return NULL;
104244 - typemap = afinfo->type_map;
104245
104246 - type = typemap[proto];
104247 + type = afinfo->type_map[proto];
104248 if (unlikely(type && !try_module_get(type->owner)))
104249 type = NULL;
104250 if (!type && !modload_attempted) {
104251 @@ -254,7 +257,7 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
104252 return -EAFNOSUPPORT;
104253
104254 err = -EEXIST;
104255 - modemap = afinfo->mode_map;
104256 + modemap = (struct xfrm_mode **)afinfo->mode_map;
104257 spin_lock_bh(&xfrm_mode_lock);
104258 if (modemap[mode->encap])
104259 goto out;
104260 @@ -263,8 +266,10 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
104261 if (!try_module_get(afinfo->owner))
104262 goto out;
104263
104264 - mode->afinfo = afinfo;
104265 + pax_open_kernel();
104266 + *(const void **)&mode->afinfo = afinfo;
104267 modemap[mode->encap] = mode;
104268 + pax_close_kernel();
104269 err = 0;
104270
104271 out:
104272 @@ -288,10 +293,12 @@ int xfrm_unregister_mode(struct xfrm_mode *mode, int family)
104273 return -EAFNOSUPPORT;
104274
104275 err = -ENOENT;
104276 - modemap = afinfo->mode_map;
104277 + modemap = (struct xfrm_mode **)afinfo->mode_map;
104278 spin_lock_bh(&xfrm_mode_lock);
104279 if (likely(modemap[mode->encap] == mode)) {
104280 + pax_open_kernel();
104281 modemap[mode->encap] = NULL;
104282 + pax_close_kernel();
104283 module_put(mode->afinfo->owner);
104284 err = 0;
104285 }
104286 @@ -1519,10 +1526,10 @@ EXPORT_SYMBOL(xfrm_find_acq_byseq);
104287 u32 xfrm_get_acqseq(void)
104288 {
104289 u32 res;
104290 - static atomic_t acqseq;
104291 + static atomic_unchecked_t acqseq;
104292
104293 do {
104294 - res = atomic_inc_return(&acqseq);
104295 + res = atomic_inc_return_unchecked(&acqseq);
104296 } while (!res);
104297
104298 return res;
104299 diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c
104300 index 05a6e3d..6716ec9 100644
104301 --- a/net/xfrm/xfrm_sysctl.c
104302 +++ b/net/xfrm/xfrm_sysctl.c
104303 @@ -42,7 +42,7 @@ static struct ctl_table xfrm_table[] = {
104304
104305 int __net_init xfrm_sysctl_init(struct net *net)
104306 {
104307 - struct ctl_table *table;
104308 + ctl_table_no_const *table;
104309
104310 __xfrm_sysctl_init(net);
104311
104312 diff --git a/scripts/Makefile b/scripts/Makefile
104313 index 1d07860..f16fc22 100644
104314 --- a/scripts/Makefile
104315 +++ b/scripts/Makefile
104316 @@ -40,3 +40,5 @@ subdir-$(CONFIG_DTC) += dtc
104317
104318 # Let clean descend into subdirs
104319 subdir- += basic kconfig package selinux
104320 +
104321 +clean-files := randstruct.seed
104322 diff --git a/scripts/Makefile.build b/scripts/Makefile.build
104323 index 003bc26..d5f02b0 100644
104324 --- a/scripts/Makefile.build
104325 +++ b/scripts/Makefile.build
104326 @@ -121,7 +121,7 @@ endif
104327 endif
104328
104329 # Do not include host rules unless needed
104330 -ifneq ($(hostprogs-y)$(hostprogs-m),)
104331 +ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
104332 include scripts/Makefile.host
104333 endif
104334
104335 diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
104336 index 686cb0d..9d653bf 100644
104337 --- a/scripts/Makefile.clean
104338 +++ b/scripts/Makefile.clean
104339 @@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
104340 __clean-files := $(extra-y) $(always) \
104341 $(targets) $(clean-files) \
104342 $(host-progs) \
104343 - $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
104344 + $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
104345 + $(hostlibs-y) $(hostlibs-m) $(hostlibs-)
104346
104347 __clean-files := $(filter-out $(no-clean-files), $(__clean-files))
104348
104349 diff --git a/scripts/Makefile.host b/scripts/Makefile.host
104350 index 1ac414f..38575f7 100644
104351 --- a/scripts/Makefile.host
104352 +++ b/scripts/Makefile.host
104353 @@ -31,6 +31,8 @@
104354 # Note: Shared libraries consisting of C++ files are not supported
104355
104356 __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
104357 +__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m))
104358 +__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
104359
104360 # C code
104361 # Executables compiled from a single .c file
104362 @@ -54,11 +56,15 @@ host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
104363 # Shared libaries (only .c supported)
104364 # Shared libraries (.so) - all .so files referenced in "xxx-objs"
104365 host-cshlib := $(sort $(filter %.so, $(host-cobjs)))
104366 +host-cshlib += $(sort $(filter %.so, $(__hostlibs)))
104367 +host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs)))
104368 # Remove .so files from "xxx-objs"
104369 host-cobjs := $(filter-out %.so,$(host-cobjs))
104370 +host-cxxobjs := $(filter-out %.so,$(host-cxxobjs))
104371
104372 -#Object (.o) files used by the shared libaries
104373 +# Object (.o) files used by the shared libaries
104374 host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
104375 +host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
104376
104377 # output directory for programs/.o files
104378 # hostprogs-y := tools/build may have been specified. Retrieve directory
104379 @@ -82,7 +88,9 @@ host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
104380 host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
104381 host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
104382 host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
104383 +host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
104384 host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
104385 +host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
104386 host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
104387
104388 obj-dirs += $(host-objdirs)
104389 @@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
104390 $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
104391 $(call if_changed_dep,host-cshobjs)
104392
104393 +# Compile .c file, create position independent .o file
104394 +# host-cxxshobjs -> .o
104395 +quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
104396 + cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
104397 +$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
104398 + $(call if_changed_dep,host-cxxshobjs)
104399 +
104400 # Link a shared library, based on position independent .o files
104401 # *.o -> .so shared library (host-cshlib)
104402 quiet_cmd_host-cshlib = HOSTLLD -shared $@
104403 @@ -165,6 +180,15 @@ quiet_cmd_host-cshlib = HOSTLLD -shared $@
104404 $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
104405 $(call if_changed,host-cshlib)
104406
104407 +# Link a shared library, based on position independent .o files
104408 +# *.o -> .so shared library (host-cxxshlib)
104409 +quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
104410 + cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \
104411 + $(addprefix $(obj)/,$($(@F:.so=-objs))) \
104412 + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
104413 +$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE
104414 + $(call if_changed,host-cxxshlib)
104415 +
104416 targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
104417 - $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs)
104418 + $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
104419
104420 diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
104421 index 078fe1d..fbdb363 100644
104422 --- a/scripts/basic/fixdep.c
104423 +++ b/scripts/basic/fixdep.c
104424 @@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz)
104425 /*
104426 * Lookup a value in the configuration string.
104427 */
104428 -static int is_defined_config(const char *name, int len, unsigned int hash)
104429 +static int is_defined_config(const char *name, unsigned int len, unsigned int hash)
104430 {
104431 struct item *aux;
104432
104433 @@ -211,10 +211,10 @@ static void clear_config(void)
104434 /*
104435 * Record the use of a CONFIG_* word.
104436 */
104437 -static void use_config(const char *m, int slen)
104438 +static void use_config(const char *m, unsigned int slen)
104439 {
104440 unsigned int hash = strhash(m, slen);
104441 - int c, i;
104442 + unsigned int c, i;
104443
104444 if (is_defined_config(m, slen, hash))
104445 return;
104446 @@ -235,9 +235,9 @@ static void use_config(const char *m, int slen)
104447
104448 static void parse_config_file(const char *map, size_t len)
104449 {
104450 - const int *end = (const int *) (map + len);
104451 + const unsigned int *end = (const unsigned int *) (map + len);
104452 /* start at +1, so that p can never be < map */
104453 - const int *m = (const int *) map + 1;
104454 + const unsigned int *m = (const unsigned int *) map + 1;
104455 const char *p, *q;
104456
104457 for (; m < end; m++) {
104458 @@ -435,7 +435,7 @@ static void print_deps(void)
104459 static void traps(void)
104460 {
104461 static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
104462 - int *p = (int *)test;
104463 + unsigned int *p = (unsigned int *)test;
104464
104465 if (*p != INT_CONF) {
104466 fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
104467 diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
104468 new file mode 100644
104469 index 0000000..3fd3699
104470 --- /dev/null
104471 +++ b/scripts/gcc-plugin.sh
104472 @@ -0,0 +1,43 @@
104473 +#!/bin/bash
104474 +srctree=$(dirname "$0")
104475 +gccplugins_dir=$($3 -print-file-name=plugin)
104476 +plugincc=$($1 -E - -o /dev/null -I${srctree}/../tools/gcc -I${gccplugins_dir}/include 2>&1 <<EOF
104477 +#include "gcc-common.h"
104478 +#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX)
104479 +#warning $2 CXX
104480 +#else
104481 +#warning $1 CC
104482 +#endif
104483 +EOF
104484 +)
104485 +
104486 +if [ $? -ne 0 ]
104487 +then
104488 + exit 1
104489 +fi
104490 +
104491 +if [[ "$plugincc" =~ "$1 CC" ]]
104492 +then
104493 + echo "$1"
104494 + exit 0
104495 +fi
104496 +
104497 +if [[ "$plugincc" =~ "$2 CXX" ]]
104498 +then
104499 +plugincc=$($1 -c -x c++ -std=gnu++98 - -o /dev/null -I${srctree}/../tools/gcc -I${gccplugins_dir}/include 2>&1 <<EOF
104500 +#include "gcc-common.h"
104501 +class test {
104502 +public:
104503 + int test;
104504 +} test = {
104505 + .test = 1
104506 +};
104507 +EOF
104508 +)
104509 +if [ $? -eq 0 ]
104510 +then
104511 + echo "$2"
104512 + exit 0
104513 +fi
104514 +fi
104515 +exit 1
104516 diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
104517 index 5de5660..d3deb89 100644
104518 --- a/scripts/headers_install.sh
104519 +++ b/scripts/headers_install.sh
104520 @@ -32,6 +32,7 @@ do
104521 FILE="$(basename "$i")"
104522 sed -r \
104523 -e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
104524 + -e 's/__intentional_overflow\([- \t,0-9]*\)//g' \
104525 -e 's/__attribute_const__([ \t]|$)/\1/g' \
104526 -e 's@^#include <linux/compiler.h>@@' \
104527 -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
104528 diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
104529 index 86a4fe7..99e91f9 100644
104530 --- a/scripts/link-vmlinux.sh
104531 +++ b/scripts/link-vmlinux.sh
104532 @@ -166,7 +166,7 @@ else
104533 fi;
104534
104535 # final build of init/
104536 -${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
104537 +${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}"
104538
104539 kallsymso=""
104540 kallsyms_vmlinux=""
104541 diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
104542 index 1924990..3de7363 100644
104543 --- a/scripts/mod/file2alias.c
104544 +++ b/scripts/mod/file2alias.c
104545 @@ -142,7 +142,7 @@ static void device_id_check(const char *modname, const char *device_id,
104546 unsigned long size, unsigned long id_size,
104547 void *symval)
104548 {
104549 - int i;
104550 + unsigned int i;
104551
104552 if (size % id_size || size < id_size) {
104553 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
104554 @@ -171,7 +171,7 @@ static void device_id_check(const char *modname, const char *device_id,
104555 /* USB is special because the bcdDevice can be matched against a numeric range */
104556 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
104557 static void do_usb_entry(void *symval,
104558 - unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
104559 + unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits,
104560 unsigned char range_lo, unsigned char range_hi,
104561 unsigned char max, struct module *mod)
104562 {
104563 @@ -281,7 +281,7 @@ static void do_usb_entry_multi(void *symval, struct module *mod)
104564 {
104565 unsigned int devlo, devhi;
104566 unsigned char chi, clo, max;
104567 - int ndigits;
104568 + unsigned int ndigits;
104569
104570 DEF_FIELD(symval, usb_device_id, match_flags);
104571 DEF_FIELD(symval, usb_device_id, idVendor);
104572 @@ -534,7 +534,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
104573 for (i = 0; i < count; i++) {
104574 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
104575 char acpi_id[sizeof(*id)];
104576 - int j;
104577 + unsigned int j;
104578
104579 buf_printf(&mod->dev_table_buf,
104580 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
104581 @@ -563,7 +563,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
104582
104583 for (j = 0; j < PNP_MAX_DEVICES; j++) {
104584 const char *id = (char *)(*devs)[j].id;
104585 - int i2, j2;
104586 + unsigned int i2, j2;
104587 int dup = 0;
104588
104589 if (!id[0])
104590 @@ -589,7 +589,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
104591 /* add an individual alias for every device entry */
104592 if (!dup) {
104593 char acpi_id[PNP_ID_LEN];
104594 - int k;
104595 + unsigned int k;
104596
104597 buf_printf(&mod->dev_table_buf,
104598 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
104599 @@ -941,7 +941,7 @@ static void dmi_ascii_filter(char *d, const char *s)
104600 static int do_dmi_entry(const char *filename, void *symval,
104601 char *alias)
104602 {
104603 - int i, j;
104604 + unsigned int i, j;
104605 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
104606 sprintf(alias, "dmi*");
104607
104608 diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
104609 index 0663556..d9494f0 100644
104610 --- a/scripts/mod/modpost.c
104611 +++ b/scripts/mod/modpost.c
104612 @@ -949,6 +949,7 @@ enum mismatch {
104613 ANY_INIT_TO_ANY_EXIT,
104614 ANY_EXIT_TO_ANY_INIT,
104615 EXPORT_TO_INIT_EXIT,
104616 + DATA_TO_TEXT
104617 };
104618
104619 struct sectioncheck {
104620 @@ -1035,6 +1036,12 @@ const struct sectioncheck sectioncheck[] = {
104621 .tosec = { INIT_SECTIONS, EXIT_SECTIONS, NULL },
104622 .mismatch = EXPORT_TO_INIT_EXIT,
104623 .symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL },
104624 +},
104625 +/* Do not reference code from writable data */
104626 +{
104627 + .fromsec = { DATA_SECTIONS, NULL },
104628 + .tosec = { TEXT_SECTIONS, NULL },
104629 + .mismatch = DATA_TO_TEXT
104630 }
104631 };
104632
104633 @@ -1155,10 +1162,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
104634 continue;
104635 if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
104636 continue;
104637 - if (sym->st_value == addr)
104638 - return sym;
104639 /* Find a symbol nearby - addr are maybe negative */
104640 d = sym->st_value - addr;
104641 + if (d == 0)
104642 + return sym;
104643 if (d < 0)
104644 d = addr - sym->st_value;
104645 if (d < distance) {
104646 @@ -1436,6 +1443,14 @@ static void report_sec_mismatch(const char *modname,
104647 tosym, prl_to, prl_to, tosym);
104648 free(prl_to);
104649 break;
104650 + case DATA_TO_TEXT:
104651 +#if 0
104652 + fprintf(stderr,
104653 + "The %s %s:%s references\n"
104654 + "the %s %s:%s%s\n",
104655 + from, fromsec, fromsym, to, tosec, tosym, to_p);
104656 +#endif
104657 + break;
104658 }
104659 fprintf(stderr, "\n");
104660 }
104661 @@ -1687,7 +1702,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
104662 static void check_sec_ref(struct module *mod, const char *modname,
104663 struct elf_info *elf)
104664 {
104665 - int i;
104666 + unsigned int i;
104667 Elf_Shdr *sechdrs = elf->sechdrs;
104668
104669 /* Walk through all sections */
104670 @@ -1819,7 +1834,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf,
104671 va_end(ap);
104672 }
104673
104674 -void buf_write(struct buffer *buf, const char *s, int len)
104675 +void buf_write(struct buffer *buf, const char *s, unsigned int len)
104676 {
104677 if (buf->size - buf->pos < len) {
104678 buf->size += len + SZ;
104679 @@ -2038,7 +2053,7 @@ static void write_if_changed(struct buffer *b, const char *fname)
104680 if (fstat(fileno(file), &st) < 0)
104681 goto close_write;
104682
104683 - if (st.st_size != b->pos)
104684 + if (st.st_size != (off_t)b->pos)
104685 goto close_write;
104686
104687 tmp = NOFAIL(malloc(b->pos));
104688 diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
104689 index 168b43d..77914bf 100644
104690 --- a/scripts/mod/modpost.h
104691 +++ b/scripts/mod/modpost.h
104692 @@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr);
104693
104694 struct buffer {
104695 char *p;
104696 - int pos;
104697 - int size;
104698 + unsigned int pos;
104699 + unsigned int size;
104700 };
104701
104702 void __attribute__((format(printf, 2, 3)))
104703 buf_printf(struct buffer *buf, const char *fmt, ...);
104704
104705 void
104706 -buf_write(struct buffer *buf, const char *s, int len);
104707 +buf_write(struct buffer *buf, const char *s, unsigned int len);
104708
104709 struct module {
104710 struct module *next;
104711 diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
104712 index deb2994..af4f63e 100644
104713 --- a/scripts/mod/sumversion.c
104714 +++ b/scripts/mod/sumversion.c
104715 @@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum,
104716 goto out;
104717 }
104718
104719 - if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
104720 + if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) {
104721 warn("writing sum in %s failed: %s\n",
104722 filename, strerror(errno));
104723 goto out;
104724 diff --git a/scripts/module-common.lds b/scripts/module-common.lds
104725 index 0865b3e..7235dd4 100644
104726 --- a/scripts/module-common.lds
104727 +++ b/scripts/module-common.lds
104728 @@ -6,6 +6,10 @@
104729 SECTIONS {
104730 /DISCARD/ : { *(.discard) }
104731
104732 + .rodata : {
104733 + *(.rodata) *(.rodata.*)
104734 + *(.data..read_only)
104735 + }
104736 __ksymtab : { *(SORT(___ksymtab+*)) }
104737 __ksymtab_gpl : { *(SORT(___ksymtab_gpl+*)) }
104738 __ksymtab_unused : { *(SORT(___ksymtab_unused+*)) }
104739 diff --git a/scripts/package/builddeb b/scripts/package/builddeb
104740 index 152d4d2..791684c 100644
104741 --- a/scripts/package/builddeb
104742 +++ b/scripts/package/builddeb
104743 @@ -291,6 +291,7 @@ fi
104744 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
104745 (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
104746 (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
104747 +(cd $objtree; find tools/gcc -name \*.so >> "$objtree/debian/hdrobjfiles")
104748 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
104749 mkdir -p "$destdir"
104750 (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
104751 diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
104752 index 68bb4ef..2f419e1 100644
104753 --- a/scripts/pnmtologo.c
104754 +++ b/scripts/pnmtologo.c
104755 @@ -244,14 +244,14 @@ static void write_header(void)
104756 fprintf(out, " * Linux logo %s\n", logoname);
104757 fputs(" */\n\n", out);
104758 fputs("#include <linux/linux_logo.h>\n\n", out);
104759 - fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
104760 + fprintf(out, "static unsigned char %s_data[] = {\n",
104761 logoname);
104762 }
104763
104764 static void write_footer(void)
104765 {
104766 fputs("\n};\n\n", out);
104767 - fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname);
104768 + fprintf(out, "const struct linux_logo %s = {\n", logoname);
104769 fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]);
104770 fprintf(out, "\t.width\t\t= %d,\n", logo_width);
104771 fprintf(out, "\t.height\t\t= %d,\n", logo_height);
104772 @@ -381,7 +381,7 @@ static void write_logo_clut224(void)
104773 fputs("\n};\n\n", out);
104774
104775 /* write logo clut */
104776 - fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
104777 + fprintf(out, "static unsigned char %s_clut[] = {\n",
104778 logoname);
104779 write_hex_cnt = 0;
104780 for (i = 0; i < logo_clutsize; i++) {
104781 diff --git a/scripts/sortextable.h b/scripts/sortextable.h
104782 index 8fac3fd..32ff38d 100644
104783 --- a/scripts/sortextable.h
104784 +++ b/scripts/sortextable.h
104785 @@ -108,9 +108,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
104786 const char *secstrtab;
104787 const char *strtab;
104788 char *extab_image;
104789 - int extab_index = 0;
104790 - int i;
104791 - int idx;
104792 + unsigned int extab_index = 0;
104793 + unsigned int i;
104794 + unsigned int idx;
104795 unsigned int num_sections;
104796 unsigned int secindex_strings;
104797
104798 diff --git a/security/Kconfig b/security/Kconfig
104799 index beb86b5..40b1edb 100644
104800 --- a/security/Kconfig
104801 +++ b/security/Kconfig
104802 @@ -4,6 +4,957 @@
104803
104804 menu "Security options"
104805
104806 +menu "Grsecurity"
104807 +
104808 + config ARCH_TRACK_EXEC_LIMIT
104809 + bool
104810 +
104811 + config PAX_KERNEXEC_PLUGIN
104812 + bool
104813 +
104814 + config PAX_PER_CPU_PGD
104815 + bool
104816 +
104817 + config TASK_SIZE_MAX_SHIFT
104818 + int
104819 + depends on X86_64
104820 + default 47 if !PAX_PER_CPU_PGD
104821 + default 42 if PAX_PER_CPU_PGD
104822 +
104823 + config PAX_ENABLE_PAE
104824 + bool
104825 + default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM))
104826 +
104827 + config PAX_USERCOPY_SLABS
104828 + bool
104829 +
104830 +config GRKERNSEC
104831 + bool "Grsecurity"
104832 + select CRYPTO
104833 + select CRYPTO_SHA256
104834 + select PROC_FS
104835 + select STOP_MACHINE
104836 + select TTY
104837 + select DEBUG_KERNEL
104838 + select DEBUG_LIST
104839 + help
104840 + If you say Y here, you will be able to configure many features
104841 + that will enhance the security of your system. It is highly
104842 + recommended that you say Y here and read through the help
104843 + for each option so that you fully understand the features and
104844 + can evaluate their usefulness for your machine.
104845 +
104846 +choice
104847 + prompt "Configuration Method"
104848 + depends on GRKERNSEC
104849 + default GRKERNSEC_CONFIG_CUSTOM
104850 + help
104851 +
104852 +config GRKERNSEC_CONFIG_AUTO
104853 + bool "Automatic"
104854 + help
104855 + If you choose this configuration method, you'll be able to answer a small
104856 + number of simple questions about how you plan to use this kernel.
104857 + The settings of grsecurity and PaX will be automatically configured for
104858 + the highest commonly-used settings within the provided constraints.
104859 +
104860 + If you require additional configuration, custom changes can still be made
104861 + from the "custom configuration" menu.
104862 +
104863 +config GRKERNSEC_CONFIG_CUSTOM
104864 + bool "Custom"
104865 + help
104866 + If you choose this configuration method, you'll be able to configure all
104867 + grsecurity and PaX settings manually. Via this method, no options are
104868 + automatically enabled.
104869 +
104870 +endchoice
104871 +
104872 +choice
104873 + prompt "Usage Type"
104874 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
104875 + default GRKERNSEC_CONFIG_SERVER
104876 + help
104877 +
104878 +config GRKERNSEC_CONFIG_SERVER
104879 + bool "Server"
104880 + help
104881 + Choose this option if you plan to use this kernel on a server.
104882 +
104883 +config GRKERNSEC_CONFIG_DESKTOP
104884 + bool "Desktop"
104885 + help
104886 + Choose this option if you plan to use this kernel on a desktop.
104887 +
104888 +endchoice
104889 +
104890 +choice
104891 + prompt "Virtualization Type"
104892 + depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO)
104893 + default GRKERNSEC_CONFIG_VIRT_NONE
104894 + help
104895 +
104896 +config GRKERNSEC_CONFIG_VIRT_NONE
104897 + bool "None"
104898 + help
104899 + Choose this option if this kernel will be run on bare metal.
104900 +
104901 +config GRKERNSEC_CONFIG_VIRT_GUEST
104902 + bool "Guest"
104903 + help
104904 + Choose this option if this kernel will be run as a VM guest.
104905 +
104906 +config GRKERNSEC_CONFIG_VIRT_HOST
104907 + bool "Host"
104908 + help
104909 + Choose this option if this kernel will be run as a VM host.
104910 +
104911 +endchoice
104912 +
104913 +choice
104914 + prompt "Virtualization Hardware"
104915 + depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
104916 + help
104917 +
104918 +config GRKERNSEC_CONFIG_VIRT_EPT
104919 + bool "EPT/RVI Processor Support"
104920 + depends on X86
104921 + help
104922 + Choose this option if your CPU supports the EPT or RVI features of 2nd-gen
104923 + hardware virtualization. This allows for additional kernel hardening protections
104924 + to operate without additional performance impact.
104925 +
104926 + To see if your Intel processor supports EPT, see:
104927 + http://ark.intel.com/Products/VirtualizationTechnology
104928 + (Most Core i3/5/7 support EPT)
104929 +
104930 + To see if your AMD processor supports RVI, see:
104931 + http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx
104932 +
104933 +config GRKERNSEC_CONFIG_VIRT_SOFT
104934 + bool "First-gen/No Hardware Virtualization"
104935 + help
104936 + Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't
104937 + support hardware virtualization or doesn't support the EPT/RVI extensions.
104938 +
104939 +endchoice
104940 +
104941 +choice
104942 + prompt "Virtualization Software"
104943 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
104944 + help
104945 +
104946 +config GRKERNSEC_CONFIG_VIRT_XEN
104947 + bool "Xen"
104948 + help
104949 + Choose this option if this kernel is running as a Xen guest or host.
104950 +
104951 +config GRKERNSEC_CONFIG_VIRT_VMWARE
104952 + bool "VMWare"
104953 + help
104954 + Choose this option if this kernel is running as a VMWare guest or host.
104955 +
104956 +config GRKERNSEC_CONFIG_VIRT_KVM
104957 + bool "KVM"
104958 + help
104959 + Choose this option if this kernel is running as a KVM guest or host.
104960 +
104961 +config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX
104962 + bool "VirtualBox"
104963 + help
104964 + Choose this option if this kernel is running as a VirtualBox guest or host.
104965 +
104966 +endchoice
104967 +
104968 +choice
104969 + prompt "Required Priorities"
104970 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
104971 + default GRKERNSEC_CONFIG_PRIORITY_PERF
104972 + help
104973 +
104974 +config GRKERNSEC_CONFIG_PRIORITY_PERF
104975 + bool "Performance"
104976 + help
104977 + Choose this option if performance is of highest priority for this deployment
104978 + of grsecurity. Features like UDEREF on a 64bit kernel, kernel stack clearing,
104979 + clearing of structures intended for userland, and freed memory sanitizing will
104980 + be disabled.
104981 +
104982 +config GRKERNSEC_CONFIG_PRIORITY_SECURITY
104983 + bool "Security"
104984 + help
104985 + Choose this option if security is of highest priority for this deployment of
104986 + grsecurity. UDEREF, kernel stack clearing, clearing of structures intended
104987 + for userland, and freed memory sanitizing will be enabled for this kernel.
104988 + In a worst-case scenario, these features can introduce a 20% performance hit
104989 + (UDEREF on x64 contributing half of this hit).
104990 +
104991 +endchoice
104992 +
104993 +menu "Default Special Groups"
104994 +depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
104995 +
104996 +config GRKERNSEC_PROC_GID
104997 + int "GID exempted from /proc restrictions"
104998 + default 1001
104999 + help
105000 + Setting this GID determines which group will be exempted from
105001 + grsecurity's /proc restrictions, allowing users of the specified
105002 + group to view network statistics and the existence of other users'
105003 + processes on the system. This GID may also be chosen at boot time
105004 + via "grsec_proc_gid=" on the kernel commandline.
105005 +
105006 +config GRKERNSEC_TPE_UNTRUSTED_GID
105007 + int "GID for TPE-untrusted users"
105008 + depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
105009 + default 1005
105010 + help
105011 + Setting this GID determines which group untrusted users should
105012 + be added to. These users will be placed under grsecurity's Trusted Path
105013 + Execution mechanism, preventing them from executing their own binaries.
105014 + The users will only be able to execute binaries in directories owned and
105015 + writable only by the root user. If the sysctl option is enabled, a sysctl
105016 + option with name "tpe_gid" is created.
105017 +
105018 +config GRKERNSEC_TPE_TRUSTED_GID
105019 + int "GID for TPE-trusted users"
105020 + depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
105021 + default 1005
105022 + help
105023 + Setting this GID determines what group TPE restrictions will be
105024 + *disabled* for. If the sysctl option is enabled, a sysctl option
105025 + with name "tpe_gid" is created.
105026 +
105027 +config GRKERNSEC_SYMLINKOWN_GID
105028 + int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
105029 + depends on GRKERNSEC_CONFIG_SERVER
105030 + default 1006
105031 + help
105032 + Setting this GID determines what group kernel-enforced
105033 + SymlinksIfOwnerMatch will be enabled for. If the sysctl option
105034 + is enabled, a sysctl option with name "symlinkown_gid" is created.
105035 +
105036 +
105037 +endmenu
105038 +
105039 +menu "Customize Configuration"
105040 +depends on GRKERNSEC
105041 +
105042 +menu "PaX"
105043 +
105044 +config PAX
105045 + bool "Enable various PaX features"
105046 + default y if GRKERNSEC_CONFIG_AUTO
105047 + depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86)
105048 + help
105049 + This allows you to enable various PaX features. PaX adds
105050 + intrusion prevention mechanisms to the kernel that reduce
105051 + the risks posed by exploitable memory corruption bugs.
105052 +
105053 +menu "PaX Control"
105054 + depends on PAX
105055 +
105056 +config PAX_SOFTMODE
105057 + bool 'Support soft mode'
105058 + help
105059 + Enabling this option will allow you to run PaX in soft mode, that
105060 + is, PaX features will not be enforced by default, only on executables
105061 + marked explicitly. You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS
105062 + support as they are the only way to mark executables for soft mode use.
105063 +
105064 + Soft mode can be activated by using the "pax_softmode=1" kernel command
105065 + line option on boot. Furthermore you can control various PaX features
105066 + at runtime via the entries in /proc/sys/kernel/pax.
105067 +
105068 +config PAX_EI_PAX
105069 + bool 'Use legacy ELF header marking'
105070 + default y if GRKERNSEC_CONFIG_AUTO
105071 + help
105072 + Enabling this option will allow you to control PaX features on
105073 + a per executable basis via the 'chpax' utility available at
105074 + http://pax.grsecurity.net/. The control flags will be read from
105075 + an otherwise reserved part of the ELF header. This marking has
105076 + numerous drawbacks (no support for soft-mode, toolchain does not
105077 + know about the non-standard use of the ELF header) therefore it
105078 + has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS
105079 + support.
105080 +
105081 + Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking
105082 + support as well, they will override the legacy EI_PAX marks.
105083 +
105084 + If you enable none of the marking options then all applications
105085 + will run with PaX enabled on them by default.
105086 +
105087 +config PAX_PT_PAX_FLAGS
105088 + bool 'Use ELF program header marking'
105089 + default y if GRKERNSEC_CONFIG_AUTO
105090 + help
105091 + Enabling this option will allow you to control PaX features on
105092 + a per executable basis via the 'paxctl' utility available at
105093 + http://pax.grsecurity.net/. The control flags will be read from
105094 + a PaX specific ELF program header (PT_PAX_FLAGS). This marking
105095 + has the benefits of supporting both soft mode and being fully
105096 + integrated into the toolchain (the binutils patch is available
105097 + from http://pax.grsecurity.net).
105098 +
105099 + Note that if you enable the legacy EI_PAX marking support as well,
105100 + the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
105101 +
105102 + If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
105103 + must make sure that the marks are the same if a binary has both marks.
105104 +
105105 + If you enable none of the marking options then all applications
105106 + will run with PaX enabled on them by default.
105107 +
105108 +config PAX_XATTR_PAX_FLAGS
105109 + bool 'Use filesystem extended attributes marking'
105110 + default y if GRKERNSEC_CONFIG_AUTO
105111 + select CIFS_XATTR if CIFS
105112 + select F2FS_FS_XATTR if F2FS_FS
105113 + select EXT2_FS_XATTR if EXT2_FS
105114 + select EXT3_FS_XATTR if EXT3_FS
105115 + select JFFS2_FS_XATTR if JFFS2_FS
105116 + select REISERFS_FS_XATTR if REISERFS_FS
105117 + select SQUASHFS_XATTR if SQUASHFS
105118 + select TMPFS_XATTR if TMPFS
105119 + help
105120 + Enabling this option will allow you to control PaX features on
105121 + a per executable basis via the 'setfattr' utility. The control
105122 + flags will be read from the user.pax.flags extended attribute of
105123 + the file. This marking has the benefit of supporting binary-only
105124 + applications that self-check themselves (e.g., skype) and would
105125 + not tolerate chpax/paxctl changes. The main drawback is that
105126 + extended attributes are not supported by some filesystems (e.g.,
105127 + isofs, udf, vfat) so copying files through such filesystems will
105128 + lose the extended attributes and these PaX markings.
105129 +
105130 + Note that if you enable the legacy EI_PAX marking support as well,
105131 + the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks.
105132 +
105133 + If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
105134 + must make sure that the marks are the same if a binary has both marks.
105135 +
105136 + If you enable none of the marking options then all applications
105137 + will run with PaX enabled on them by default.
105138 +
105139 +choice
105140 + prompt 'MAC system integration'
105141 + default PAX_HAVE_ACL_FLAGS
105142 + help
105143 + Mandatory Access Control systems have the option of controlling
105144 + PaX flags on a per executable basis, choose the method supported
105145 + by your particular system.
105146 +
105147 + - "none": if your MAC system does not interact with PaX,
105148 + - "direct": if your MAC system defines pax_set_initial_flags() itself,
105149 + - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
105150 +
105151 + NOTE: this option is for developers/integrators only.
105152 +
105153 + config PAX_NO_ACL_FLAGS
105154 + bool 'none'
105155 +
105156 + config PAX_HAVE_ACL_FLAGS
105157 + bool 'direct'
105158 +
105159 + config PAX_HOOK_ACL_FLAGS
105160 + bool 'hook'
105161 +endchoice
105162 +
105163 +endmenu
105164 +
105165 +menu "Non-executable pages"
105166 + depends on PAX
105167 +
105168 +config PAX_NOEXEC
105169 + bool "Enforce non-executable pages"
105170 + default y if GRKERNSEC_CONFIG_AUTO
105171 + depends on ALPHA || (ARM && (CPU_V6 || CPU_V6K || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86
105172 + help
105173 + By design some architectures do not allow for protecting memory
105174 + pages against execution or even if they do, Linux does not make
105175 + use of this feature. In practice this means that if a page is
105176 + readable (such as the stack or heap) it is also executable.
105177 +
105178 + There is a well known exploit technique that makes use of this
105179 + fact and a common programming mistake where an attacker can
105180 + introduce code of his choice somewhere in the attacked program's
105181 + memory (typically the stack or the heap) and then execute it.
105182 +
105183 + If the attacked program was running with different (typically
105184 + higher) privileges than that of the attacker, then he can elevate
105185 + his own privilege level (e.g. get a root shell, write to files for
105186 + which he does not have write access to, etc).
105187 +
105188 + Enabling this option will let you choose from various features
105189 + that prevent the injection and execution of 'foreign' code in
105190 + a program.
105191 +
105192 + This will also break programs that rely on the old behaviour and
105193 + expect that dynamically allocated memory via the malloc() family
105194 + of functions is executable (which it is not). Notable examples
105195 + are the XFree86 4.x server, the java runtime and wine.
105196 +
105197 +config PAX_PAGEEXEC
105198 + bool "Paging based non-executable pages"
105199 + default y if GRKERNSEC_CONFIG_AUTO
105200 + depends on PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MATOM || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7)
105201 + select ARCH_TRACK_EXEC_LIMIT if X86_32
105202 + help
105203 + This implementation is based on the paging feature of the CPU.
105204 + On i386 without hardware non-executable bit support there is a
105205 + variable but usually low performance impact, however on Intel's
105206 + P4 core based CPUs it is very high so you should not enable this
105207 + for kernels meant to be used on such CPUs.
105208 +
105209 + On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
105210 + with hardware non-executable bit support there is no performance
105211 + impact, on ppc the impact is negligible.
105212 +
105213 + Note that several architectures require various emulations due to
105214 + badly designed userland ABIs, this will cause a performance impact
105215 + but will disappear as soon as userland is fixed. For example, ppc
105216 + userland MUST have been built with secure-plt by a recent toolchain.
105217 +
105218 +config PAX_SEGMEXEC
105219 + bool "Segmentation based non-executable pages"
105220 + default y if GRKERNSEC_CONFIG_AUTO
105221 + depends on PAX_NOEXEC && X86_32
105222 + help
105223 + This implementation is based on the segmentation feature of the
105224 + CPU and has a very small performance impact, however applications
105225 + will be limited to a 1.5 GB address space instead of the normal
105226 + 3 GB.
105227 +
105228 +config PAX_EMUTRAMP
105229 + bool "Emulate trampolines"
105230 + default y if PARISC || GRKERNSEC_CONFIG_AUTO
105231 + depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86)
105232 + help
105233 + There are some programs and libraries that for one reason or
105234 + another attempt to execute special small code snippets from
105235 + non-executable memory pages. Most notable examples are the
105236 + signal handler return code generated by the kernel itself and
105237 + the GCC trampolines.
105238 +
105239 + If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
105240 + such programs will no longer work under your kernel.
105241 +
105242 + As a remedy you can say Y here and use the 'chpax' or 'paxctl'
105243 + utilities to enable trampoline emulation for the affected programs
105244 + yet still have the protection provided by the non-executable pages.
105245 +
105246 + On parisc you MUST enable this option and EMUSIGRT as well, otherwise
105247 + your system will not even boot.
105248 +
105249 + Alternatively you can say N here and use the 'chpax' or 'paxctl'
105250 + utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
105251 + for the affected files.
105252 +
105253 + NOTE: enabling this feature *may* open up a loophole in the
105254 + protection provided by non-executable pages that an attacker
105255 + could abuse. Therefore the best solution is to not have any
105256 + files on your system that would require this option. This can
105257 + be achieved by not using libc5 (which relies on the kernel
105258 + signal handler return code) and not using or rewriting programs
105259 + that make use of the nested function implementation of GCC.
105260 + Skilled users can just fix GCC itself so that it implements
105261 + nested function calls in a way that does not interfere with PaX.
105262 +
105263 +config PAX_EMUSIGRT
105264 + bool "Automatically emulate sigreturn trampolines"
105265 + depends on PAX_EMUTRAMP && PARISC
105266 + default y
105267 + help
105268 + Enabling this option will have the kernel automatically detect
105269 + and emulate signal return trampolines executing on the stack
105270 + that would otherwise lead to task termination.
105271 +
105272 + This solution is intended as a temporary one for users with
105273 + legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
105274 + Modula-3 runtime, etc) or executables linked to such, basically
105275 + everything that does not specify its own SA_RESTORER function in
105276 + normal executable memory like glibc 2.1+ does.
105277 +
105278 + On parisc you MUST enable this option, otherwise your system will
105279 + not even boot.
105280 +
105281 + NOTE: this feature cannot be disabled on a per executable basis
105282 + and since it *does* open up a loophole in the protection provided
105283 + by non-executable pages, the best solution is to not have any
105284 + files on your system that would require this option.
105285 +
105286 +config PAX_MPROTECT
105287 + bool "Restrict mprotect()"
105288 + default y if GRKERNSEC_CONFIG_AUTO
105289 + depends on (PAX_PAGEEXEC || PAX_SEGMEXEC)
105290 + help
105291 + Enabling this option will prevent programs from
105292 + - changing the executable status of memory pages that were
105293 + not originally created as executable,
105294 + - making read-only executable pages writable again,
105295 + - creating executable pages from anonymous memory,
105296 + - making read-only-after-relocations (RELRO) data pages writable again.
105297 +
105298 + You should say Y here to complete the protection provided by
105299 + the enforcement of non-executable pages.
105300 +
105301 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control
105302 + this feature on a per file basis.
105303 +
105304 +config PAX_MPROTECT_COMPAT
105305 + bool "Use legacy/compat protection demoting (read help)"
105306 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
105307 + depends on PAX_MPROTECT
105308 + help
105309 + The current implementation of PAX_MPROTECT denies RWX allocations/mprotects
105310 + by sending the proper error code to the application. For some broken
105311 + userland, this can cause problems with Python or other applications. The
105312 + current implementation however allows for applications like clamav to
105313 + detect if JIT compilation/execution is allowed and to fall back gracefully
105314 + to an interpreter-based mode if it does not. While we encourage everyone
105315 + to use the current implementation as-is and push upstream to fix broken
105316 + userland (note that the RWX logging option can assist with this), in some
105317 + environments this may not be possible. Having to disable MPROTECT
105318 + completely on certain binaries reduces the security benefit of PaX,
105319 + so this option is provided for those environments to revert to the old
105320 + behavior.
105321 +
105322 +config PAX_ELFRELOCS
105323 + bool "Allow ELF text relocations (read help)"
105324 + depends on PAX_MPROTECT
105325 + default n
105326 + help
105327 + Non-executable pages and mprotect() restrictions are effective
105328 + in preventing the introduction of new executable code into an
105329 + attacked task's address space. There remain only two venues
105330 + for this kind of attack: if the attacker can execute already
105331 + existing code in the attacked task then he can either have it
105332 + create and mmap() a file containing his code or have it mmap()
105333 + an already existing ELF library that does not have position
105334 + independent code in it and use mprotect() on it to make it
105335 + writable and copy his code there. While protecting against
105336 + the former approach is beyond PaX, the latter can be prevented
105337 + by having only PIC ELF libraries on one's system (which do not
105338 + need to relocate their code). If you are sure this is your case,
105339 + as is the case with all modern Linux distributions, then leave
105340 + this option disabled. You should say 'n' here.
105341 +
105342 +config PAX_ETEXECRELOCS
105343 + bool "Allow ELF ET_EXEC text relocations"
105344 + depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
105345 + select PAX_ELFRELOCS
105346 + default y
105347 + help
105348 + On some architectures there are incorrectly created applications
105349 + that require text relocations and would not work without enabling
105350 + this option. If you are an alpha, ia64 or parisc user, you should
105351 + enable this option and disable it once you have made sure that
105352 + none of your applications need it.
105353 +
105354 +config PAX_EMUPLT
105355 + bool "Automatically emulate ELF PLT"
105356 + depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC)
105357 + default y
105358 + help
105359 + Enabling this option will have the kernel automatically detect
105360 + and emulate the Procedure Linkage Table entries in ELF files.
105361 + On some architectures such entries are in writable memory, and
105362 + become non-executable leading to task termination. Therefore
105363 + it is mandatory that you enable this option on alpha, parisc,
105364 + sparc and sparc64, otherwise your system would not even boot.
105365 +
105366 + NOTE: this feature *does* open up a loophole in the protection
105367 + provided by the non-executable pages, therefore the proper
105368 + solution is to modify the toolchain to produce a PLT that does
105369 + not need to be writable.
105370 +
105371 +config PAX_DLRESOLVE
105372 + bool 'Emulate old glibc resolver stub'
105373 + depends on PAX_EMUPLT && SPARC
105374 + default n
105375 + help
105376 + This option is needed if userland has an old glibc (before 2.4)
105377 + that puts a 'save' instruction into the runtime generated resolver
105378 + stub that needs special emulation.
105379 +
105380 +config PAX_KERNEXEC
105381 + bool "Enforce non-executable kernel pages"
105382 + default y if GRKERNSEC_CONFIG_AUTO && (!X86 || GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM))
105383 + depends on (X86 || (ARM && (CPU_V6 || CPU_V6K || CPU_V7) && !(ARM_LPAE && MODULES))) && !XEN
105384 + select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE)
105385 + select PAX_KERNEXEC_PLUGIN if X86_64
105386 + help
105387 + This is the kernel land equivalent of PAGEEXEC and MPROTECT,
105388 + that is, enabling this option will make it harder to inject
105389 + and execute 'foreign' code in kernel memory itself.
105390 +
105391 +choice
105392 + prompt "Return Address Instrumentation Method"
105393 + default PAX_KERNEXEC_PLUGIN_METHOD_BTS
105394 + depends on PAX_KERNEXEC_PLUGIN
105395 + help
105396 + Select the method used to instrument function pointer dereferences.
105397 + Note that binary modules cannot be instrumented by this approach.
105398 +
105399 + Note that the implementation requires a gcc with plugin support,
105400 + i.e., gcc 4.5 or newer. You may need to install the supporting
105401 + headers explicitly in addition to the normal gcc package.
105402 +
105403 + config PAX_KERNEXEC_PLUGIN_METHOD_BTS
105404 + bool "bts"
105405 + help
105406 + This method is compatible with binary only modules but has
105407 + a higher runtime overhead.
105408 +
105409 + config PAX_KERNEXEC_PLUGIN_METHOD_OR
105410 + bool "or"
105411 + depends on !PARAVIRT
105412 + help
105413 + This method is incompatible with binary only modules but has
105414 + a lower runtime overhead.
105415 +endchoice
105416 +
105417 +config PAX_KERNEXEC_PLUGIN_METHOD
105418 + string
105419 + default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS
105420 + default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR
105421 + default ""
105422 +
105423 +config PAX_KERNEXEC_MODULE_TEXT
105424 + int "Minimum amount of memory reserved for module code"
105425 + default "4" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER)
105426 + default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
105427 + depends on PAX_KERNEXEC && X86_32
105428 + help
105429 + Due to implementation details the kernel must reserve a fixed
105430 + amount of memory for runtime allocated code (such as modules)
105431 + at compile time that cannot be changed at runtime. Here you
105432 + can specify the minimum amount in MB that will be reserved.
105433 + Due to the same implementation details this size will always
105434 + be rounded up to the next 2/4 MB boundary (depends on PAE) so
105435 + the actually available memory for runtime allocated code will
105436 + usually be more than this minimum.
105437 +
105438 + The default 4 MB should be enough for most users but if you have
105439 + an excessive number of modules (e.g., most distribution configs
105440 + compile many drivers as modules) or use huge modules such as
105441 + nvidia's kernel driver, you will need to adjust this amount.
105442 + A good rule of thumb is to look at your currently loaded kernel
105443 + modules and add up their sizes.
105444 +
105445 +endmenu
105446 +
105447 +menu "Address Space Layout Randomization"
105448 + depends on PAX
105449 +
105450 +config PAX_ASLR
105451 + bool "Address Space Layout Randomization"
105452 + default y if GRKERNSEC_CONFIG_AUTO
105453 + help
105454 + Many if not most exploit techniques rely on the knowledge of
105455 + certain addresses in the attacked program. The following options
105456 + will allow the kernel to apply a certain amount of randomization
105457 + to specific parts of the program thereby forcing an attacker to
105458 + guess them in most cases. Any failed guess will most likely crash
105459 + the attacked program which allows the kernel to detect such attempts
105460 + and react on them. PaX itself provides no reaction mechanisms,
105461 + instead it is strongly encouraged that you make use of grsecurity's
105462 + (http://www.grsecurity.net/) built-in crash detection features or
105463 + develop one yourself.
105464 +
105465 + By saying Y here you can choose to randomize the following areas:
105466 + - top of the task's kernel stack
105467 + - top of the task's userland stack
105468 + - base address for mmap() requests that do not specify one
105469 + (this includes all libraries)
105470 + - base address of the main executable
105471 +
105472 + It is strongly recommended to say Y here as address space layout
105473 + randomization has negligible impact on performance yet it provides
105474 + a very effective protection.
105475 +
105476 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control
105477 + this feature on a per file basis.
105478 +
105479 +config PAX_RANDKSTACK
105480 + bool "Randomize kernel stack base"
105481 + default y if GRKERNSEC_CONFIG_AUTO && !(GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_VIRTUALBOX)
105482 + depends on X86_TSC && X86
105483 + help
105484 + By saying Y here the kernel will randomize every task's kernel
105485 + stack on every system call. This will not only force an attacker
105486 + to guess it but also prevent him from making use of possible
105487 + leaked information about it.
105488 +
105489 + Since the kernel stack is a rather scarce resource, randomization
105490 + may cause unexpected stack overflows, therefore you should very
105491 + carefully test your system. Note that once enabled in the kernel
105492 + configuration, this feature cannot be disabled on a per file basis.
105493 +
105494 +config PAX_RANDUSTACK
105495 + bool
105496 +
105497 +config PAX_RANDMMAP
105498 + bool "Randomize user stack and mmap() bases"
105499 + default y if GRKERNSEC_CONFIG_AUTO
105500 + depends on PAX_ASLR
105501 + select PAX_RANDUSTACK
105502 + help
105503 + By saying Y here the kernel will randomize every task's userland
105504 + stack and use a randomized base address for mmap() requests that
105505 + do not specify one themselves.
105506 +
105507 + The stack randomization is done in two steps where the second
105508 + one may apply a big amount of shift to the top of the stack and
105509 + cause problems for programs that want to use lots of memory (more
105510 + than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
105511 +
105512 + As a result of mmap randomization all dynamically loaded libraries
105513 + will appear at random addresses and therefore be harder to exploit
105514 + by a technique where an attacker attempts to execute library code
105515 + for his purposes (e.g. spawn a shell from an exploited program that
105516 + is running at an elevated privilege level).
105517 +
105518 + Furthermore, if a program is relinked as a dynamic ELF file, its
105519 + base address will be randomized as well, completing the full
105520 + randomization of the address space layout. Attacking such programs
105521 + becomes a guess game. You can find an example of doing this at
105522 + http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
105523 + http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
105524 +
105525 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
105526 + feature on a per file basis.
105527 +
105528 +endmenu
105529 +
105530 +menu "Miscellaneous hardening features"
105531 +
105532 +config PAX_MEMORY_SANITIZE
105533 + bool "Sanitize all freed memory"
105534 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
105535 + help
105536 + By saying Y here the kernel will erase memory pages and slab objects
105537 + as soon as they are freed. This in turn reduces the lifetime of data
105538 + stored in them, making it less likely that sensitive information such
105539 + as passwords, cryptographic secrets, etc stay in memory for too long.
105540 +
105541 + This is especially useful for programs whose runtime is short, long
105542 + lived processes and the kernel itself benefit from this as long as
105543 + they ensure timely freeing of memory that may hold sensitive
105544 + information.
105545 +
105546 + A nice side effect of the sanitization of slab objects is the
105547 + reduction of possible info leaks caused by padding bytes within the
105548 + leaky structures. Use-after-free bugs for structures containing
105549 + pointers can also be detected as dereferencing the sanitized pointer
105550 + will generate an access violation.
105551 +
105552 + The tradeoff is performance impact, on a single CPU system kernel
105553 + compilation sees a 3% slowdown, other systems and workloads may vary
105554 + and you are advised to test this feature on your expected workload
105555 + before deploying it.
105556 +
105557 + To reduce the performance penalty by sanitizing pages only, albeit
105558 + limiting the effectiveness of this feature at the same time, slab
105559 + sanitization can be disabled with the kernel commandline parameter
105560 + "pax_sanitize_slab=0".
105561 +
105562 + Note that this feature does not protect data stored in live pages,
105563 + e.g., process memory swapped to disk may stay there for a long time.
105564 +
105565 +config PAX_MEMORY_STACKLEAK
105566 + bool "Sanitize kernel stack"
105567 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
105568 + depends on X86
105569 + help
105570 + By saying Y here the kernel will erase the kernel stack before it
105571 + returns from a system call. This in turn reduces the information
105572 + that a kernel stack leak bug can reveal.
105573 +
105574 + Note that such a bug can still leak information that was put on
105575 + the stack by the current system call (the one eventually triggering
105576 + the bug) but traces of earlier system calls on the kernel stack
105577 + cannot leak anymore.
105578 +
105579 + The tradeoff is performance impact: on a single CPU system kernel
105580 + compilation sees a 1% slowdown, other systems and workloads may vary
105581 + and you are advised to test this feature on your expected workload
105582 + before deploying it.
105583 +
105584 + Note that the full feature requires a gcc with plugin support,
105585 + i.e., gcc 4.5 or newer. You may need to install the supporting
105586 + headers explicitly in addition to the normal gcc package. Using
105587 + older gcc versions means that functions with large enough stack
105588 + frames may leave uninitialized memory behind that may be exposed
105589 + to a later syscall leaking the stack.
105590 +
105591 +config PAX_MEMORY_STRUCTLEAK
105592 + bool "Forcibly initialize local variables copied to userland"
105593 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
105594 + help
105595 + By saying Y here the kernel will zero initialize some local
105596 + variables that are going to be copied to userland. This in
105597 + turn prevents unintended information leakage from the kernel
105598 + stack should later code forget to explicitly set all parts of
105599 + the copied variable.
105600 +
105601 + The tradeoff is less performance impact than PAX_MEMORY_STACKLEAK
105602 + at a much smaller coverage.
105603 +
105604 + Note that the implementation requires a gcc with plugin support,
105605 + i.e., gcc 4.5 or newer. You may need to install the supporting
105606 + headers explicitly in addition to the normal gcc package.
105607 +
105608 +config PAX_MEMORY_UDEREF
105609 + bool "Prevent invalid userland pointer dereference"
105610 + default y if GRKERNSEC_CONFIG_AUTO && !(X86_64 && GRKERNSEC_CONFIG_PRIORITY_PERF) && (!X86 || GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT)
105611 + depends on (X86 || (ARM && (CPU_V6 || CPU_V6K || CPU_V7) && !ARM_LPAE)) && !UML_X86 && !XEN
105612 + select PAX_PER_CPU_PGD if X86_64
105613 + help
105614 + By saying Y here the kernel will be prevented from dereferencing
105615 + userland pointers in contexts where the kernel expects only kernel
105616 + pointers. This is both a useful runtime debugging feature and a
105617 + security measure that prevents exploiting a class of kernel bugs.
105618 +
105619 + The tradeoff is that some virtualization solutions may experience
105620 + a huge slowdown and therefore you should not enable this feature
105621 + for kernels meant to run in such environments. Whether a given VM
105622 + solution is affected or not is best determined by simply trying it
105623 + out, the performance impact will be obvious right on boot as this
105624 + mechanism engages from very early on. A good rule of thumb is that
105625 + VMs running on CPUs without hardware virtualization support (i.e.,
105626 + the majority of IA-32 CPUs) will likely experience the slowdown.
105627 +
105628 + On X86_64 the kernel will make use of PCID support when available
105629 + (Intel's Westmere, Sandy Bridge, etc) for better security (default)
105630 + or performance impact. Pass pax_weakuderef on the kernel command
105631 + line to choose the latter.
105632 +
105633 +config PAX_REFCOUNT
105634 + bool "Prevent various kernel object reference counter overflows"
105635 + default y if GRKERNSEC_CONFIG_AUTO
105636 + depends on GRKERNSEC && ((ARM && (CPU_V6 || CPU_V6K || CPU_V7)) || MIPS || SPARC64 || X86)
105637 + help
105638 + By saying Y here the kernel will detect and prevent overflowing
105639 + various (but not all) kinds of object reference counters. Such
105640 + overflows can normally occur due to bugs only and are often, if
105641 + not always, exploitable.
105642 +
105643 + The tradeoff is that data structures protected by an overflowed
105644 + refcount will never be freed and therefore will leak memory. Note
105645 + that this leak also happens even without this protection but in
105646 + that case the overflow can eventually trigger the freeing of the
105647 + data structure while it is still being used elsewhere, resulting
105648 + in the exploitable situation that this feature prevents.
105649 +
105650 + Since this has a negligible performance impact, you should enable
105651 + this feature.
105652 +
105653 +config PAX_CONSTIFY_PLUGIN
105654 + bool "Automatically constify eligible structures"
105655 + default y
105656 + depends on !UML && PAX_KERNEXEC
105657 + help
105658 + By saying Y here the compiler will automatically constify a class
105659 + of types that contain only function pointers. This reduces the
105660 + kernel's attack surface and also produces a better memory layout.
105661 +
105662 + Note that the implementation requires a gcc with plugin support,
105663 + i.e., gcc 4.5 or newer. You may need to install the supporting
105664 + headers explicitly in addition to the normal gcc package.
105665 +
105666 + Note that if some code really has to modify constified variables
105667 + then the source code will have to be patched to allow it. Examples
105668 + can be found in PaX itself (the no_const attribute) and for some
105669 + out-of-tree modules at http://www.grsecurity.net/~paxguy1/ .
105670 +
105671 +config PAX_USERCOPY
105672 + bool "Harden heap object copies between kernel and userland"
105673 + default y if GRKERNSEC_CONFIG_AUTO
105674 + depends on ARM || IA64 || PPC || SPARC || X86
105675 + depends on GRKERNSEC && (SLAB || SLUB || SLOB)
105676 + select PAX_USERCOPY_SLABS
105677 + help
105678 + By saying Y here the kernel will enforce the size of heap objects
105679 + when they are copied in either direction between the kernel and
105680 + userland, even if only a part of the heap object is copied.
105681 +
105682 + Specifically, this checking prevents information leaking from the
105683 + kernel heap during kernel to userland copies (if the kernel heap
105684 + object is otherwise fully initialized) and prevents kernel heap
105685 + overflows during userland to kernel copies.
105686 +
105687 + Note that the current implementation provides the strictest bounds
105688 + checks for the SLUB allocator.
105689 +
105690 + Enabling this option also enables per-slab cache protection against
105691 + data in a given cache being copied into/out of via userland
105692 + accessors. Though the whitelist of regions will be reduced over
105693 + time, it notably protects important data structures like task structs.
105694 +
105695 + If frame pointers are enabled on x86, this option will also restrict
105696 + copies into and out of the kernel stack to local variables within a
105697 + single frame.
105698 +
105699 + Since this has a negligible performance impact, you should enable
105700 + this feature.
105701 +
105702 +config PAX_USERCOPY_DEBUG
105703 + bool
105704 + depends on X86 && PAX_USERCOPY
105705 + default n
105706 +
105707 +config PAX_SIZE_OVERFLOW
105708 + bool "Prevent various integer overflows in function size parameters"
105709 + default y if GRKERNSEC_CONFIG_AUTO
105710 + depends on X86
105711 + help
105712 + By saying Y here the kernel recomputes expressions of function
105713 + arguments marked by a size_overflow attribute with double integer
105714 + precision (DImode/TImode for 32/64 bit integer types).
105715 +
105716 + The recomputed argument is checked against TYPE_MAX and an event
105717 + is logged on overflow and the triggering process is killed.
105718 +
105719 + Homepage: http://www.grsecurity.net/~ephox/overflow_plugin/
105720 +
105721 + Note that the implementation requires a gcc with plugin support,
105722 + i.e., gcc 4.5 or newer. You may need to install the supporting
105723 + headers explicitly in addition to the normal gcc package.
105724 +
105725 +config PAX_LATENT_ENTROPY
105726 + bool "Generate some entropy during boot and runtime"
105727 + default y if GRKERNSEC_CONFIG_AUTO
105728 + help
105729 + By saying Y here the kernel will instrument some kernel code to
105730 + extract some entropy from both original and artificially created
105731 + program state. This will help especially embedded systems where
105732 + there is little 'natural' source of entropy normally. The cost
105733 + is some slowdown of the boot process and fork and irq processing.
105734 +
105735 + When pax_extra_latent_entropy is passed on the kernel command line,
105736 + entropy will be extracted from up to the first 4GB of RAM while the
105737 + runtime memory allocator is being initialized. This costs even more
105738 + slowdown of the boot process.
105739 +
105740 + Note that the implementation requires a gcc with plugin support,
105741 + i.e., gcc 4.5 or newer. You may need to install the supporting
105742 + headers explicitly in addition to the normal gcc package.
105743 +
105744 + Note that entropy extracted this way is not cryptographically
105745 + secure!
105746 +
105747 +endmenu
105748 +
105749 +endmenu
105750 +
105751 +source grsecurity/Kconfig
105752 +
105753 +endmenu
105754 +
105755 +endmenu
105756 +
105757 source security/keys/Kconfig
105758
105759 config SECURITY_DMESG_RESTRICT
105760 @@ -103,7 +1054,7 @@ config INTEL_TXT
105761 config LSM_MMAP_MIN_ADDR
105762 int "Low address space for LSM to protect from user allocation"
105763 depends on SECURITY && SECURITY_SELINUX
105764 - default 32768 if ARM || (ARM64 && COMPAT)
105765 + default 32768 if ALPHA || ARM || (ARM64 && COMPAT) || PARISC || SPARC32
105766 default 65536
105767 help
105768 This is the portion of low virtual memory which should be protected
105769 diff --git a/security/apparmor/file.c b/security/apparmor/file.c
105770 index fdaa50c..2761dcb 100644
105771 --- a/security/apparmor/file.c
105772 +++ b/security/apparmor/file.c
105773 @@ -348,8 +348,8 @@ static inline bool xindex_is_subset(u32 link, u32 target)
105774 int aa_path_link(struct aa_profile *profile, struct dentry *old_dentry,
105775 struct path *new_dir, struct dentry *new_dentry)
105776 {
105777 - struct path link = { new_dir->mnt, new_dentry };
105778 - struct path target = { new_dir->mnt, old_dentry };
105779 + struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
105780 + struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
105781 struct path_cond cond = {
105782 old_dentry->d_inode->i_uid,
105783 old_dentry->d_inode->i_mode
105784 diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
105785 index 9981000..eb21356 100644
105786 --- a/security/apparmor/lsm.c
105787 +++ b/security/apparmor/lsm.c
105788 @@ -186,7 +186,7 @@ static int common_perm_dir_dentry(int op, struct path *dir,
105789 struct dentry *dentry, u32 mask,
105790 struct path_cond *cond)
105791 {
105792 - struct path path = { dir->mnt, dentry };
105793 + struct path path = { .mnt = dir->mnt, .dentry = dentry };
105794
105795 return common_perm(op, &path, mask, cond);
105796 }
105797 @@ -203,7 +203,7 @@ static int common_perm_dir_dentry(int op, struct path *dir,
105798 static int common_perm_mnt_dentry(int op, struct vfsmount *mnt,
105799 struct dentry *dentry, u32 mask)
105800 {
105801 - struct path path = { mnt, dentry };
105802 + struct path path = { .mnt = mnt, .dentry = dentry };
105803 struct path_cond cond = { dentry->d_inode->i_uid,
105804 dentry->d_inode->i_mode
105805 };
105806 @@ -325,8 +325,8 @@ static int apparmor_path_rename(struct path *old_dir, struct dentry *old_dentry,
105807
105808 profile = aa_current_profile();
105809 if (!unconfined(profile)) {
105810 - struct path old_path = { old_dir->mnt, old_dentry };
105811 - struct path new_path = { new_dir->mnt, new_dentry };
105812 + struct path old_path = { .mnt = old_dir->mnt, .dentry = old_dentry };
105813 + struct path new_path = { .mnt = new_dir->mnt, .dentry = new_dentry };
105814 struct path_cond cond = { old_dentry->d_inode->i_uid,
105815 old_dentry->d_inode->i_mode
105816 };
105817 @@ -615,7 +615,7 @@ static int apparmor_task_setrlimit(struct task_struct *task,
105818 return error;
105819 }
105820
105821 -static struct security_operations apparmor_ops = {
105822 +static struct security_operations apparmor_ops __read_only = {
105823 .name = "apparmor",
105824
105825 .ptrace_access_check = apparmor_ptrace_access_check,
105826 diff --git a/security/commoncap.c b/security/commoncap.c
105827 index b9d613e..f68305c 100644
105828 --- a/security/commoncap.c
105829 +++ b/security/commoncap.c
105830 @@ -424,6 +424,32 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
105831 return 0;
105832 }
105833
105834 +/* returns:
105835 + 1 for suid privilege
105836 + 2 for sgid privilege
105837 + 3 for fscap privilege
105838 +*/
105839 +int is_privileged_binary(const struct dentry *dentry)
105840 +{
105841 + struct cpu_vfs_cap_data capdata;
105842 + struct inode *inode = dentry->d_inode;
105843 +
105844 + if (!inode || S_ISDIR(inode->i_mode))
105845 + return 0;
105846 +
105847 + if (inode->i_mode & S_ISUID)
105848 + return 1;
105849 + if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
105850 + return 2;
105851 +
105852 + if (!get_vfs_caps_from_disk(dentry, &capdata)) {
105853 + if (!cap_isclear(capdata.inheritable) || !cap_isclear(capdata.permitted))
105854 + return 3;
105855 + }
105856 +
105857 + return 0;
105858 +}
105859 +
105860 /*
105861 * Attempt to get the on-exec apply capability sets for an executable file from
105862 * its xattrs and, if present, apply them to the proposed credentials being
105863 @@ -592,6 +618,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm)
105864 const struct cred *cred = current_cred();
105865 kuid_t root_uid = make_kuid(cred->user_ns, 0);
105866
105867 + if (gr_acl_enable_at_secure())
105868 + return 1;
105869 +
105870 if (!uid_eq(cred->uid, root_uid)) {
105871 if (bprm->cap_effective)
105872 return 1;
105873 diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
105874 index f79fa8b..6161868 100644
105875 --- a/security/integrity/ima/ima.h
105876 +++ b/security/integrity/ima/ima.h
105877 @@ -118,8 +118,8 @@ int ima_init_template(void);
105878 extern spinlock_t ima_queue_lock;
105879
105880 struct ima_h_table {
105881 - atomic_long_t len; /* number of stored measurements in the list */
105882 - atomic_long_t violations;
105883 + atomic_long_unchecked_t len; /* number of stored measurements in the list */
105884 + atomic_long_unchecked_t violations;
105885 struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE];
105886 };
105887 extern struct ima_h_table ima_htable;
105888 diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
105889 index d9cd5ce..c5c29ac 100644
105890 --- a/security/integrity/ima/ima_api.c
105891 +++ b/security/integrity/ima/ima_api.c
105892 @@ -137,7 +137,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
105893 int result;
105894
105895 /* can overflow, only indicator */
105896 - atomic_long_inc(&ima_htable.violations);
105897 + atomic_long_inc_unchecked(&ima_htable.violations);
105898
105899 result = ima_alloc_init_template(NULL, file, filename,
105900 NULL, 0, &entry);
105901 diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
105902 index da92fcc..8a5d390 100644
105903 --- a/security/integrity/ima/ima_fs.c
105904 +++ b/security/integrity/ima/ima_fs.c
105905 @@ -28,12 +28,12 @@
105906 static int valid_policy = 1;
105907 #define TMPBUFLEN 12
105908 static ssize_t ima_show_htable_value(char __user *buf, size_t count,
105909 - loff_t *ppos, atomic_long_t *val)
105910 + loff_t *ppos, atomic_long_unchecked_t *val)
105911 {
105912 char tmpbuf[TMPBUFLEN];
105913 ssize_t len;
105914
105915 - len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
105916 + len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val));
105917 return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
105918 }
105919
105920 diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
105921 index 552705d..9920f4fb 100644
105922 --- a/security/integrity/ima/ima_queue.c
105923 +++ b/security/integrity/ima/ima_queue.c
105924 @@ -83,7 +83,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry)
105925 INIT_LIST_HEAD(&qe->later);
105926 list_add_tail_rcu(&qe->later, &ima_measurements);
105927
105928 - atomic_long_inc(&ima_htable.len);
105929 + atomic_long_inc_unchecked(&ima_htable.len);
105930 key = ima_hash_key(entry->digest);
105931 hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]);
105932 return 0;
105933 diff --git a/security/keys/compat.c b/security/keys/compat.c
105934 index 3478965..ec7bb9e 100644
105935 --- a/security/keys/compat.c
105936 +++ b/security/keys/compat.c
105937 @@ -44,7 +44,7 @@ static long compat_keyctl_instantiate_key_iov(
105938 if (ret == 0)
105939 goto no_payload_free;
105940
105941 - ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
105942 + ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
105943 err:
105944 if (iov != iovstack)
105945 kfree(iov);
105946 diff --git a/security/keys/internal.h b/security/keys/internal.h
105947 index 80b2aac..bb7ee65 100644
105948 --- a/security/keys/internal.h
105949 +++ b/security/keys/internal.h
105950 @@ -253,7 +253,7 @@ extern long keyctl_instantiate_key_iov(key_serial_t,
105951 extern long keyctl_invalidate_key(key_serial_t);
105952
105953 extern long keyctl_instantiate_key_common(key_serial_t,
105954 - const struct iovec *,
105955 + const struct iovec __user *,
105956 unsigned, size_t, key_serial_t);
105957 #ifdef CONFIG_PERSISTENT_KEYRINGS
105958 extern long keyctl_get_persistent(uid_t, key_serial_t);
105959 diff --git a/security/keys/key.c b/security/keys/key.c
105960 index 6e21c11..9ed67ca 100644
105961 --- a/security/keys/key.c
105962 +++ b/security/keys/key.c
105963 @@ -285,7 +285,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
105964
105965 atomic_set(&key->usage, 1);
105966 init_rwsem(&key->sem);
105967 - lockdep_set_class(&key->sem, &type->lock_class);
105968 + lockdep_set_class(&key->sem, (struct lock_class_key *)&type->lock_class);
105969 key->index_key.type = type;
105970 key->user = user;
105971 key->quotalen = quotalen;
105972 @@ -1036,7 +1036,9 @@ int register_key_type(struct key_type *ktype)
105973 struct key_type *p;
105974 int ret;
105975
105976 - memset(&ktype->lock_class, 0, sizeof(ktype->lock_class));
105977 + pax_open_kernel();
105978 + memset((void *)&ktype->lock_class, 0, sizeof(ktype->lock_class));
105979 + pax_close_kernel();
105980
105981 ret = -EEXIST;
105982 down_write(&key_types_sem);
105983 @@ -1048,7 +1050,7 @@ int register_key_type(struct key_type *ktype)
105984 }
105985
105986 /* store the type */
105987 - list_add(&ktype->link, &key_types_list);
105988 + pax_list_add((struct list_head *)&ktype->link, &key_types_list);
105989
105990 pr_notice("Key type %s registered\n", ktype->name);
105991 ret = 0;
105992 @@ -1070,7 +1072,7 @@ EXPORT_SYMBOL(register_key_type);
105993 void unregister_key_type(struct key_type *ktype)
105994 {
105995 down_write(&key_types_sem);
105996 - list_del_init(&ktype->link);
105997 + pax_list_del_init((struct list_head *)&ktype->link);
105998 downgrade_write(&key_types_sem);
105999 key_gc_keytype(ktype);
106000 pr_notice("Key type %s unregistered\n", ktype->name);
106001 @@ -1088,10 +1090,10 @@ void __init key_init(void)
106002 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
106003
106004 /* add the special key types */
106005 - list_add_tail(&key_type_keyring.link, &key_types_list);
106006 - list_add_tail(&key_type_dead.link, &key_types_list);
106007 - list_add_tail(&key_type_user.link, &key_types_list);
106008 - list_add_tail(&key_type_logon.link, &key_types_list);
106009 + pax_list_add_tail((struct list_head *)&key_type_keyring.link, &key_types_list);
106010 + pax_list_add_tail((struct list_head *)&key_type_dead.link, &key_types_list);
106011 + pax_list_add_tail((struct list_head *)&key_type_user.link, &key_types_list);
106012 + pax_list_add_tail((struct list_head *)&key_type_logon.link, &key_types_list);
106013
106014 /* record the root user tracking */
106015 rb_link_node(&root_key_user.node,
106016 diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
106017 index cee72ce..e46074a 100644
106018 --- a/security/keys/keyctl.c
106019 +++ b/security/keys/keyctl.c
106020 @@ -987,7 +987,7 @@ static int keyctl_change_reqkey_auth(struct key *key)
106021 /*
106022 * Copy the iovec data from userspace
106023 */
106024 -static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
106025 +static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov,
106026 unsigned ioc)
106027 {
106028 for (; ioc > 0; ioc--) {
106029 @@ -1009,7 +1009,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
106030 * If successful, 0 will be returned.
106031 */
106032 long keyctl_instantiate_key_common(key_serial_t id,
106033 - const struct iovec *payload_iov,
106034 + const struct iovec __user *payload_iov,
106035 unsigned ioc,
106036 size_t plen,
106037 key_serial_t ringid)
106038 @@ -1104,7 +1104,7 @@ long keyctl_instantiate_key(key_serial_t id,
106039 [0].iov_len = plen
106040 };
106041
106042 - return keyctl_instantiate_key_common(id, iov, 1, plen, ringid);
106043 + return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid);
106044 }
106045
106046 return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid);
106047 @@ -1137,7 +1137,7 @@ long keyctl_instantiate_key_iov(key_serial_t id,
106048 if (ret == 0)
106049 goto no_payload_free;
106050
106051 - ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
106052 + ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
106053 err:
106054 if (iov != iovstack)
106055 kfree(iov);
106056 diff --git a/security/min_addr.c b/security/min_addr.c
106057 index f728728..6457a0c 100644
106058 --- a/security/min_addr.c
106059 +++ b/security/min_addr.c
106060 @@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
106061 */
106062 static void update_mmap_min_addr(void)
106063 {
106064 +#ifndef SPARC
106065 #ifdef CONFIG_LSM_MMAP_MIN_ADDR
106066 if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR)
106067 mmap_min_addr = dac_mmap_min_addr;
106068 @@ -22,6 +23,7 @@ static void update_mmap_min_addr(void)
106069 #else
106070 mmap_min_addr = dac_mmap_min_addr;
106071 #endif
106072 +#endif
106073 }
106074
106075 /*
106076 diff --git a/security/security.c b/security/security.c
106077 index 8b774f3..a396233 100644
106078 --- a/security/security.c
106079 +++ b/security/security.c
106080 @@ -33,8 +33,8 @@
106081 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
106082 CONFIG_DEFAULT_SECURITY;
106083
106084 -static struct security_operations *security_ops;
106085 -static struct security_operations default_security_ops = {
106086 +struct security_operations *security_ops __read_only;
106087 +struct security_operations default_security_ops __read_only = {
106088 .name = "default",
106089 };
106090
106091 @@ -73,11 +73,6 @@ int __init security_init(void)
106092 return 0;
106093 }
106094
106095 -void reset_security_ops(void)
106096 -{
106097 - security_ops = &default_security_ops;
106098 -}
106099 -
106100 /* Save user chosen LSM */
106101 static int __init choose_lsm(char *str)
106102 {
106103 diff --git a/security/selinux/avc.c b/security/selinux/avc.c
106104 index fc3e662..7844c60 100644
106105 --- a/security/selinux/avc.c
106106 +++ b/security/selinux/avc.c
106107 @@ -59,7 +59,7 @@ struct avc_node {
106108 struct avc_cache {
106109 struct hlist_head slots[AVC_CACHE_SLOTS]; /* head for avc_node->list */
106110 spinlock_t slots_lock[AVC_CACHE_SLOTS]; /* lock for writes */
106111 - atomic_t lru_hint; /* LRU hint for reclaim scan */
106112 + atomic_unchecked_t lru_hint; /* LRU hint for reclaim scan */
106113 atomic_t active_nodes;
106114 u32 latest_notif; /* latest revocation notification */
106115 };
106116 @@ -167,7 +167,7 @@ void __init avc_init(void)
106117 spin_lock_init(&avc_cache.slots_lock[i]);
106118 }
106119 atomic_set(&avc_cache.active_nodes, 0);
106120 - atomic_set(&avc_cache.lru_hint, 0);
106121 + atomic_set_unchecked(&avc_cache.lru_hint, 0);
106122
106123 avc_node_cachep = kmem_cache_create("avc_node", sizeof(struct avc_node),
106124 0, SLAB_PANIC, NULL);
106125 @@ -242,7 +242,7 @@ static inline int avc_reclaim_node(void)
106126 spinlock_t *lock;
106127
106128 for (try = 0, ecx = 0; try < AVC_CACHE_SLOTS; try++) {
106129 - hvalue = atomic_inc_return(&avc_cache.lru_hint) & (AVC_CACHE_SLOTS - 1);
106130 + hvalue = atomic_inc_return_unchecked(&avc_cache.lru_hint) & (AVC_CACHE_SLOTS - 1);
106131 head = &avc_cache.slots[hvalue];
106132 lock = &avc_cache.slots_lock[hvalue];
106133
106134 diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
106135 index 2c7341d..1da068e 100644
106136 --- a/security/selinux/hooks.c
106137 +++ b/security/selinux/hooks.c
106138 @@ -95,8 +95,6 @@
106139 #include "audit.h"
106140 #include "avc_ss.h"
106141
106142 -extern struct security_operations *security_ops;
106143 -
106144 /* SECMARK reference count */
106145 static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0);
106146
106147 @@ -5758,7 +5756,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
106148
106149 #endif
106150
106151 -static struct security_operations selinux_ops = {
106152 +static struct security_operations selinux_ops __read_only = {
106153 .name = "selinux",
106154
106155 .ptrace_access_check = selinux_ptrace_access_check,
106156 @@ -6111,6 +6109,9 @@ static void selinux_nf_ip_exit(void)
106157 #ifdef CONFIG_SECURITY_SELINUX_DISABLE
106158 static int selinux_disabled;
106159
106160 +extern struct security_operations *security_ops;
106161 +extern struct security_operations default_security_ops;
106162 +
106163 int selinux_disable(void)
106164 {
106165 if (ss_initialized) {
106166 @@ -6128,7 +6129,9 @@ int selinux_disable(void)
106167 selinux_disabled = 1;
106168 selinux_enabled = 0;
106169
106170 - reset_security_ops();
106171 + pax_open_kernel();
106172 + security_ops = &default_security_ops;
106173 + pax_close_kernel();
106174
106175 /* Try to destroy the avc node cache */
106176 avc_disable();
106177 diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
106178 index 1450f85..a91e0bc 100644
106179 --- a/security/selinux/include/xfrm.h
106180 +++ b/security/selinux/include/xfrm.h
106181 @@ -48,7 +48,7 @@ static inline void selinux_xfrm_notify_policyload(void)
106182
106183 rtnl_lock();
106184 for_each_net(net) {
106185 - atomic_inc(&net->xfrm.flow_cache_genid);
106186 + atomic_inc_unchecked(&net->xfrm.flow_cache_genid);
106187 rt_genid_bump_all(net);
106188 }
106189 rtnl_unlock();
106190 diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
106191 index 14f52be..7352368 100644
106192 --- a/security/smack/smack_lsm.c
106193 +++ b/security/smack/smack_lsm.c
106194 @@ -3726,7 +3726,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
106195 return 0;
106196 }
106197
106198 -struct security_operations smack_ops = {
106199 +struct security_operations smack_ops __read_only = {
106200 .name = "smack",
106201
106202 .ptrace_access_check = smack_ptrace_access_check,
106203 diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
106204 index 4003907..13a2b55 100644
106205 --- a/security/tomoyo/file.c
106206 +++ b/security/tomoyo/file.c
106207 @@ -692,7 +692,7 @@ int tomoyo_path_number_perm(const u8 type, struct path *path,
106208 {
106209 struct tomoyo_request_info r;
106210 struct tomoyo_obj_info obj = {
106211 - .path1 = *path,
106212 + .path1 = { .mnt = path->mnt, .dentry = path->dentry },
106213 };
106214 int error = -ENOMEM;
106215 struct tomoyo_path_info buf;
106216 @@ -740,7 +740,7 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
106217 struct tomoyo_path_info buf;
106218 struct tomoyo_request_info r;
106219 struct tomoyo_obj_info obj = {
106220 - .path1 = *path,
106221 + .path1 = { .mnt = path->mnt, .dentry = path->dentry },
106222 };
106223 int idx;
106224
106225 @@ -786,7 +786,7 @@ int tomoyo_path_perm(const u8 operation, struct path *path, const char *target)
106226 {
106227 struct tomoyo_request_info r;
106228 struct tomoyo_obj_info obj = {
106229 - .path1 = *path,
106230 + .path1 = { .mnt = path->mnt, .dentry = path->dentry },
106231 };
106232 int error;
106233 struct tomoyo_path_info buf;
106234 @@ -843,7 +843,7 @@ int tomoyo_mkdev_perm(const u8 operation, struct path *path,
106235 {
106236 struct tomoyo_request_info r;
106237 struct tomoyo_obj_info obj = {
106238 - .path1 = *path,
106239 + .path1 = { .mnt = path->mnt, .dentry = path->dentry },
106240 };
106241 int error = -ENOMEM;
106242 struct tomoyo_path_info buf;
106243 @@ -890,8 +890,8 @@ int tomoyo_path2_perm(const u8 operation, struct path *path1,
106244 struct tomoyo_path_info buf2;
106245 struct tomoyo_request_info r;
106246 struct tomoyo_obj_info obj = {
106247 - .path1 = *path1,
106248 - .path2 = *path2,
106249 + .path1 = { .mnt = path1->mnt, .dentry = path1->dentry },
106250 + .path2 = { .mnt = path2->mnt, .dentry = path2->dentry }
106251 };
106252 int idx;
106253
106254 diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
106255 index 390c646..f2f8db3 100644
106256 --- a/security/tomoyo/mount.c
106257 +++ b/security/tomoyo/mount.c
106258 @@ -118,6 +118,10 @@ static int tomoyo_mount_acl(struct tomoyo_request_info *r,
106259 type == tomoyo_mounts[TOMOYO_MOUNT_MOVE]) {
106260 need_dev = -1; /* dev_name is a directory */
106261 } else {
106262 + if (!capable(CAP_SYS_ADMIN)) {
106263 + error = -EPERM;
106264 + goto out;
106265 + }
106266 fstype = get_fs_type(type);
106267 if (!fstype) {
106268 error = -ENODEV;
106269 diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
106270 index f0b756e..8aa497b 100644
106271 --- a/security/tomoyo/tomoyo.c
106272 +++ b/security/tomoyo/tomoyo.c
106273 @@ -146,7 +146,7 @@ static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
106274 */
106275 static int tomoyo_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
106276 {
106277 - struct path path = { mnt, dentry };
106278 + struct path path = { .mnt = mnt, .dentry = dentry };
106279 return tomoyo_path_perm(TOMOYO_TYPE_GETATTR, &path, NULL);
106280 }
106281
106282 @@ -172,7 +172,7 @@ static int tomoyo_path_truncate(struct path *path)
106283 */
106284 static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
106285 {
106286 - struct path path = { parent->mnt, dentry };
106287 + struct path path = { .mnt = parent->mnt, .dentry = dentry };
106288 return tomoyo_path_perm(TOMOYO_TYPE_UNLINK, &path, NULL);
106289 }
106290
106291 @@ -188,7 +188,7 @@ static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
106292 static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
106293 umode_t mode)
106294 {
106295 - struct path path = { parent->mnt, dentry };
106296 + struct path path = { .mnt = parent->mnt, .dentry = dentry };
106297 return tomoyo_path_number_perm(TOMOYO_TYPE_MKDIR, &path,
106298 mode & S_IALLUGO);
106299 }
106300 @@ -203,7 +203,7 @@ static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
106301 */
106302 static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry)
106303 {
106304 - struct path path = { parent->mnt, dentry };
106305 + struct path path = { .mnt = parent->mnt, .dentry = dentry };
106306 return tomoyo_path_perm(TOMOYO_TYPE_RMDIR, &path, NULL);
106307 }
106308
106309 @@ -219,7 +219,7 @@ static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry)
106310 static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
106311 const char *old_name)
106312 {
106313 - struct path path = { parent->mnt, dentry };
106314 + struct path path = { .mnt = parent->mnt, .dentry = dentry };
106315 return tomoyo_path_perm(TOMOYO_TYPE_SYMLINK, &path, old_name);
106316 }
106317
106318 @@ -236,7 +236,7 @@ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
106319 static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
106320 umode_t mode, unsigned int dev)
106321 {
106322 - struct path path = { parent->mnt, dentry };
106323 + struct path path = { .mnt = parent->mnt, .dentry = dentry };
106324 int type = TOMOYO_TYPE_CREATE;
106325 const unsigned int perm = mode & S_IALLUGO;
106326
106327 @@ -275,8 +275,8 @@ static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
106328 static int tomoyo_path_link(struct dentry *old_dentry, struct path *new_dir,
106329 struct dentry *new_dentry)
106330 {
106331 - struct path path1 = { new_dir->mnt, old_dentry };
106332 - struct path path2 = { new_dir->mnt, new_dentry };
106333 + struct path path1 = { .mnt = new_dir->mnt, .dentry = old_dentry };
106334 + struct path path2 = { .mnt = new_dir->mnt, .dentry = new_dentry };
106335 return tomoyo_path2_perm(TOMOYO_TYPE_LINK, &path1, &path2);
106336 }
106337
106338 @@ -295,8 +295,8 @@ static int tomoyo_path_rename(struct path *old_parent,
106339 struct path *new_parent,
106340 struct dentry *new_dentry)
106341 {
106342 - struct path path1 = { old_parent->mnt, old_dentry };
106343 - struct path path2 = { new_parent->mnt, new_dentry };
106344 + struct path path1 = { .mnt = old_parent->mnt, .dentry = old_dentry };
106345 + struct path path2 = { .mnt = new_parent->mnt, .dentry = new_dentry };
106346 return tomoyo_path2_perm(TOMOYO_TYPE_RENAME, &path1, &path2);
106347 }
106348
106349 @@ -424,7 +424,7 @@ static int tomoyo_sb_mount(const char *dev_name, struct path *path,
106350 */
106351 static int tomoyo_sb_umount(struct vfsmount *mnt, int flags)
106352 {
106353 - struct path path = { mnt, mnt->mnt_root };
106354 + struct path path = { .mnt = mnt, .dentry = mnt->mnt_root };
106355 return tomoyo_path_perm(TOMOYO_TYPE_UMOUNT, &path, NULL);
106356 }
106357
106358 @@ -503,7 +503,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg,
106359 * tomoyo_security_ops is a "struct security_operations" which is used for
106360 * registering TOMOYO.
106361 */
106362 -static struct security_operations tomoyo_security_ops = {
106363 +static struct security_operations tomoyo_security_ops __read_only = {
106364 .name = "tomoyo",
106365 .cred_alloc_blank = tomoyo_cred_alloc_blank,
106366 .cred_prepare = tomoyo_cred_prepare,
106367 diff --git a/security/yama/Kconfig b/security/yama/Kconfig
106368 index 20ef514..4182bed 100644
106369 --- a/security/yama/Kconfig
106370 +++ b/security/yama/Kconfig
106371 @@ -1,6 +1,6 @@
106372 config SECURITY_YAMA
106373 bool "Yama support"
106374 - depends on SECURITY
106375 + depends on SECURITY && !GRKERNSEC
106376 select SECURITYFS
106377 select SECURITY_PATH
106378 default n
106379 diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
106380 index 13c88fbc..f8c115e 100644
106381 --- a/security/yama/yama_lsm.c
106382 +++ b/security/yama/yama_lsm.c
106383 @@ -365,7 +365,7 @@ int yama_ptrace_traceme(struct task_struct *parent)
106384 }
106385
106386 #ifndef CONFIG_SECURITY_YAMA_STACKED
106387 -static struct security_operations yama_ops = {
106388 +static struct security_operations yama_ops __read_only = {
106389 .name = "yama",
106390
106391 .ptrace_access_check = yama_ptrace_access_check,
106392 @@ -376,28 +376,24 @@ static struct security_operations yama_ops = {
106393 #endif
106394
106395 #ifdef CONFIG_SYSCTL
106396 +static int zero __read_only;
106397 +static int max_scope __read_only = YAMA_SCOPE_NO_ATTACH;
106398 +
106399 static int yama_dointvec_minmax(struct ctl_table *table, int write,
106400 void __user *buffer, size_t *lenp, loff_t *ppos)
106401 {
106402 - int rc;
106403 + ctl_table_no_const yama_table;
106404
106405 if (write && !capable(CAP_SYS_PTRACE))
106406 return -EPERM;
106407
106408 - rc = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
106409 - if (rc)
106410 - return rc;
106411 -
106412 + yama_table = *table;
106413 /* Lock the max value if it ever gets set. */
106414 - if (write && *(int *)table->data == *(int *)table->extra2)
106415 - table->extra1 = table->extra2;
106416 -
106417 - return rc;
106418 + if (ptrace_scope == max_scope)
106419 + yama_table.extra1 = &max_scope;
106420 + return proc_dointvec_minmax(&yama_table, write, buffer, lenp, ppos);
106421 }
106422
106423 -static int zero;
106424 -static int max_scope = YAMA_SCOPE_NO_ATTACH;
106425 -
106426 struct ctl_path yama_sysctl_path[] = {
106427 { .procname = "kernel", },
106428 { .procname = "yama", },
106429 diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c
106430 index f01bffb..bdda392 100644
106431 --- a/sound/aoa/codecs/onyx.c
106432 +++ b/sound/aoa/codecs/onyx.c
106433 @@ -54,7 +54,7 @@ struct onyx {
106434 spdif_locked:1,
106435 analog_locked:1,
106436 original_mute:2;
106437 - int open_count;
106438 + local_t open_count;
106439 struct codec_info *codec_info;
106440
106441 /* mutex serializes concurrent access to the device
106442 @@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii,
106443 struct onyx *onyx = cii->codec_data;
106444
106445 mutex_lock(&onyx->mutex);
106446 - onyx->open_count++;
106447 + local_inc(&onyx->open_count);
106448 mutex_unlock(&onyx->mutex);
106449
106450 return 0;
106451 @@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii,
106452 struct onyx *onyx = cii->codec_data;
106453
106454 mutex_lock(&onyx->mutex);
106455 - onyx->open_count--;
106456 - if (!onyx->open_count)
106457 + if (local_dec_and_test(&onyx->open_count))
106458 onyx->spdif_locked = onyx->analog_locked = 0;
106459 mutex_unlock(&onyx->mutex);
106460
106461 diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h
106462 index ffd2025..df062c9 100644
106463 --- a/sound/aoa/codecs/onyx.h
106464 +++ b/sound/aoa/codecs/onyx.h
106465 @@ -11,6 +11,7 @@
106466 #include <linux/i2c.h>
106467 #include <asm/pmac_low_i2c.h>
106468 #include <asm/prom.h>
106469 +#include <asm/local.h>
106470
106471 /* PCM3052 register definitions */
106472
106473 diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
106474 index ada69d7..5f65386 100644
106475 --- a/sound/core/oss/pcm_oss.c
106476 +++ b/sound/core/oss/pcm_oss.c
106477 @@ -1190,10 +1190,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
106478 if (in_kernel) {
106479 mm_segment_t fs;
106480 fs = snd_enter_user();
106481 - ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
106482 + ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
106483 snd_leave_user(fs);
106484 } else {
106485 - ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
106486 + ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
106487 }
106488 if (ret != -EPIPE && ret != -ESTRPIPE)
106489 break;
106490 @@ -1233,10 +1233,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
106491 if (in_kernel) {
106492 mm_segment_t fs;
106493 fs = snd_enter_user();
106494 - ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
106495 + ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
106496 snd_leave_user(fs);
106497 } else {
106498 - ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
106499 + ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
106500 }
106501 if (ret == -EPIPE) {
106502 if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
106503 @@ -1332,7 +1332,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
106504 struct snd_pcm_plugin_channel *channels;
106505 size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
106506 if (!in_kernel) {
106507 - if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes))
106508 + if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes))
106509 return -EFAULT;
106510 buf = runtime->oss.buffer;
106511 }
106512 @@ -1402,7 +1402,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha
106513 }
106514 } else {
106515 tmp = snd_pcm_oss_write2(substream,
106516 - (const char __force *)buf,
106517 + (const char __force_kernel *)buf,
106518 runtime->oss.period_bytes, 0);
106519 if (tmp <= 0)
106520 goto err;
106521 @@ -1428,7 +1428,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
106522 struct snd_pcm_runtime *runtime = substream->runtime;
106523 snd_pcm_sframes_t frames, frames1;
106524 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
106525 - char __user *final_dst = (char __force __user *)buf;
106526 + char __user *final_dst = (char __force_user *)buf;
106527 if (runtime->oss.plugin_first) {
106528 struct snd_pcm_plugin_channel *channels;
106529 size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8;
106530 @@ -1490,7 +1490,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
106531 xfer += tmp;
106532 runtime->oss.buffer_used -= tmp;
106533 } else {
106534 - tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
106535 + tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf,
106536 runtime->oss.period_bytes, 0);
106537 if (tmp <= 0)
106538 goto err;
106539 @@ -1659,7 +1659,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
106540 size1);
106541 size1 /= runtime->channels; /* frames */
106542 fs = snd_enter_user();
106543 - snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1);
106544 + snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1);
106545 snd_leave_user(fs);
106546 }
106547 } else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
106548 diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
106549 index af49721..e85058e 100644
106550 --- a/sound/core/pcm_compat.c
106551 +++ b/sound/core/pcm_compat.c
106552 @@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
106553 int err;
106554
106555 fs = snd_enter_user();
106556 - err = snd_pcm_delay(substream, &delay);
106557 + err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay);
106558 snd_leave_user(fs);
106559 if (err < 0)
106560 return err;
106561 diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
106562 index b653ab0..a4738e3 100644
106563 --- a/sound/core/pcm_native.c
106564 +++ b/sound/core/pcm_native.c
106565 @@ -2812,11 +2812,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
106566 switch (substream->stream) {
106567 case SNDRV_PCM_STREAM_PLAYBACK:
106568 result = snd_pcm_playback_ioctl1(NULL, substream, cmd,
106569 - (void __user *)arg);
106570 + (void __force_user *)arg);
106571 break;
106572 case SNDRV_PCM_STREAM_CAPTURE:
106573 result = snd_pcm_capture_ioctl1(NULL, substream, cmd,
106574 - (void __user *)arg);
106575 + (void __force_user *)arg);
106576 break;
106577 default:
106578 result = -EINVAL;
106579 diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c
106580 index 16d4267..fe8b49b 100644
106581 --- a/sound/core/seq/oss/seq_oss.c
106582 +++ b/sound/core/seq/oss/seq_oss.c
106583 @@ -69,8 +69,8 @@ static int __init alsa_seq_oss_init(void)
106584 {
106585 int rc;
106586 static struct snd_seq_dev_ops ops = {
106587 - snd_seq_oss_synth_register,
106588 - snd_seq_oss_synth_unregister,
106589 + .init_device = snd_seq_oss_synth_register,
106590 + .free_device = snd_seq_oss_synth_unregister,
106591 };
106592
106593 snd_seq_autoload_lock();
106594 diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c
106595 index 91a786a..4c07ed4 100644
106596 --- a/sound/core/seq/seq_device.c
106597 +++ b/sound/core/seq/seq_device.c
106598 @@ -64,7 +64,7 @@ struct ops_list {
106599 int argsize; /* argument size */
106600
106601 /* operators */
106602 - struct snd_seq_dev_ops ops;
106603 + struct snd_seq_dev_ops *ops;
106604
106605 /* registered devices */
106606 struct list_head dev_list; /* list of devices */
106607 @@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
106608
106609 mutex_lock(&ops->reg_mutex);
106610 /* copy driver operators */
106611 - ops->ops = *entry;
106612 + ops->ops = entry;
106613 ops->driver |= DRIVER_LOADED;
106614 ops->argsize = argsize;
106615
106616 @@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops)
106617 dev->name, ops->id, ops->argsize, dev->argsize);
106618 return -EINVAL;
106619 }
106620 - if (ops->ops.init_device(dev) >= 0) {
106621 + if (ops->ops->init_device(dev) >= 0) {
106622 dev->status = SNDRV_SEQ_DEVICE_REGISTERED;
106623 ops->num_init_devices++;
106624 } else {
106625 @@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
106626 dev->name, ops->id, ops->argsize, dev->argsize);
106627 return -EINVAL;
106628 }
106629 - if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) {
106630 + if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) {
106631 dev->status = SNDRV_SEQ_DEVICE_FREE;
106632 dev->driver_data = NULL;
106633 ops->num_init_devices--;
106634 diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
106635 index 3e05c55..0f02efc 100644
106636 --- a/sound/core/seq/seq_midi.c
106637 +++ b/sound/core/seq/seq_midi.c
106638 @@ -462,8 +462,8 @@ snd_seq_midisynth_unregister_port(struct snd_seq_device *dev)
106639 static int __init alsa_seq_midi_init(void)
106640 {
106641 static struct snd_seq_dev_ops ops = {
106642 - snd_seq_midisynth_register_port,
106643 - snd_seq_midisynth_unregister_port,
106644 + .init_device = snd_seq_midisynth_register_port,
106645 + .free_device = snd_seq_midisynth_unregister_port,
106646 };
106647 memset(&synths, 0, sizeof(synths));
106648 snd_seq_autoload_lock();
106649 diff --git a/sound/core/sound.c b/sound/core/sound.c
106650 index 38ad1a0..5010a40 100644
106651 --- a/sound/core/sound.c
106652 +++ b/sound/core/sound.c
106653 @@ -86,7 +86,7 @@ static void snd_request_other(int minor)
106654 case SNDRV_MINOR_TIMER: str = "snd-timer"; break;
106655 default: return;
106656 }
106657 - request_module(str);
106658 + request_module("%s", str);
106659 }
106660
106661 #endif /* modular kernel */
106662 diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
106663 index f5fd448..6ae276da 100644
106664 --- a/sound/drivers/mts64.c
106665 +++ b/sound/drivers/mts64.c
106666 @@ -29,6 +29,7 @@
106667 #include <sound/initval.h>
106668 #include <sound/rawmidi.h>
106669 #include <sound/control.h>
106670 +#include <asm/local.h>
106671
106672 #define CARD_NAME "Miditerminal 4140"
106673 #define DRIVER_NAME "MTS64"
106674 @@ -67,7 +68,7 @@ struct mts64 {
106675 struct pardevice *pardev;
106676 int pardev_claimed;
106677
106678 - int open_count;
106679 + local_t open_count;
106680 int current_midi_output_port;
106681 int current_midi_input_port;
106682 u8 mode[MTS64_NUM_INPUT_PORTS];
106683 @@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
106684 {
106685 struct mts64 *mts = substream->rmidi->private_data;
106686
106687 - if (mts->open_count == 0) {
106688 + if (local_read(&mts->open_count) == 0) {
106689 /* We don't need a spinlock here, because this is just called
106690 if the device has not been opened before.
106691 So there aren't any IRQs from the device */
106692 @@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
106693
106694 msleep(50);
106695 }
106696 - ++(mts->open_count);
106697 + local_inc(&mts->open_count);
106698
106699 return 0;
106700 }
106701 @@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
106702 struct mts64 *mts = substream->rmidi->private_data;
106703 unsigned long flags;
106704
106705 - --(mts->open_count);
106706 - if (mts->open_count == 0) {
106707 + if (local_dec_return(&mts->open_count) == 0) {
106708 /* We need the spinlock_irqsave here because we can still
106709 have IRQs at this point */
106710 spin_lock_irqsave(&mts->lock, flags);
106711 @@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
106712
106713 msleep(500);
106714
106715 - } else if (mts->open_count < 0)
106716 - mts->open_count = 0;
106717 + } else if (local_read(&mts->open_count) < 0)
106718 + local_set(&mts->open_count, 0);
106719
106720 return 0;
106721 }
106722 diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c
106723 index 6839953..7a0f4b9 100644
106724 --- a/sound/drivers/opl3/opl3_seq.c
106725 +++ b/sound/drivers/opl3/opl3_seq.c
106726 @@ -281,8 +281,8 @@ static int __init alsa_opl3_seq_init(void)
106727 {
106728 static struct snd_seq_dev_ops ops =
106729 {
106730 - snd_opl3_seq_new_device,
106731 - snd_opl3_seq_delete_device
106732 + .init_device = snd_opl3_seq_new_device,
106733 + .free_device = snd_opl3_seq_delete_device
106734 };
106735
106736 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops,
106737 diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
106738 index b953fb4..1999c01 100644
106739 --- a/sound/drivers/opl4/opl4_lib.c
106740 +++ b/sound/drivers/opl4/opl4_lib.c
106741 @@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
106742 MODULE_DESCRIPTION("OPL4 driver");
106743 MODULE_LICENSE("GPL");
106744
106745 -static void inline snd_opl4_wait(struct snd_opl4 *opl4)
106746 +static inline void snd_opl4_wait(struct snd_opl4 *opl4)
106747 {
106748 int timeout = 10;
106749 while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0)
106750 diff --git a/sound/drivers/opl4/opl4_seq.c b/sound/drivers/opl4/opl4_seq.c
106751 index 9919769..d7de36c 100644
106752 --- a/sound/drivers/opl4/opl4_seq.c
106753 +++ b/sound/drivers/opl4/opl4_seq.c
106754 @@ -198,8 +198,8 @@ static int snd_opl4_seq_delete_device(struct snd_seq_device *dev)
106755 static int __init alsa_opl4_synth_init(void)
106756 {
106757 static struct snd_seq_dev_ops ops = {
106758 - snd_opl4_seq_new_device,
106759 - snd_opl4_seq_delete_device
106760 + .init_device = snd_opl4_seq_new_device,
106761 + .free_device = snd_opl4_seq_delete_device
106762 };
106763
106764 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL4, &ops,
106765 diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
106766 index 78ccfa4..7a0857b 100644
106767 --- a/sound/drivers/portman2x4.c
106768 +++ b/sound/drivers/portman2x4.c
106769 @@ -48,6 +48,7 @@
106770 #include <sound/initval.h>
106771 #include <sound/rawmidi.h>
106772 #include <sound/control.h>
106773 +#include <asm/local.h>
106774
106775 #define CARD_NAME "Portman 2x4"
106776 #define DRIVER_NAME "portman"
106777 @@ -85,7 +86,7 @@ struct portman {
106778 struct pardevice *pardev;
106779 int pardev_claimed;
106780
106781 - int open_count;
106782 + local_t open_count;
106783 int mode[PORTMAN_NUM_INPUT_PORTS];
106784 struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS];
106785 };
106786 diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
106787 index 9048777..2d8b1fc 100644
106788 --- a/sound/firewire/amdtp.c
106789 +++ b/sound/firewire/amdtp.c
106790 @@ -488,7 +488,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
106791 ptr = s->pcm_buffer_pointer + data_blocks;
106792 if (ptr >= pcm->runtime->buffer_size)
106793 ptr -= pcm->runtime->buffer_size;
106794 - ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
106795 + ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr;
106796
106797 s->pcm_period_pointer += data_blocks;
106798 if (s->pcm_period_pointer >= pcm->runtime->period_size) {
106799 @@ -655,7 +655,7 @@ EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);
106800 */
106801 void amdtp_out_stream_update(struct amdtp_out_stream *s)
106802 {
106803 - ACCESS_ONCE(s->source_node_id_field) =
106804 + ACCESS_ONCE_RW(s->source_node_id_field) =
106805 (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
106806 }
106807 EXPORT_SYMBOL(amdtp_out_stream_update);
106808 diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
106809 index 2746ecd..c35dedd 100644
106810 --- a/sound/firewire/amdtp.h
106811 +++ b/sound/firewire/amdtp.h
106812 @@ -135,7 +135,7 @@ static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
106813 static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
106814 struct snd_pcm_substream *pcm)
106815 {
106816 - ACCESS_ONCE(s->pcm) = pcm;
106817 + ACCESS_ONCE_RW(s->pcm) = pcm;
106818 }
106819
106820 static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
106821 diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
106822 index 7ac9443..0ec6274 100644
106823 --- a/sound/firewire/isight.c
106824 +++ b/sound/firewire/isight.c
106825 @@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count)
106826 ptr += count;
106827 if (ptr >= runtime->buffer_size)
106828 ptr -= runtime->buffer_size;
106829 - ACCESS_ONCE(isight->buffer_pointer) = ptr;
106830 + ACCESS_ONCE_RW(isight->buffer_pointer) = ptr;
106831
106832 isight->period_counter += count;
106833 if (isight->period_counter >= runtime->period_size) {
106834 @@ -299,7 +299,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
106835 if (err < 0)
106836 return err;
106837
106838 - ACCESS_ONCE(isight->pcm_active) = true;
106839 + ACCESS_ONCE_RW(isight->pcm_active) = true;
106840
106841 return 0;
106842 }
106843 @@ -337,7 +337,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
106844 {
106845 struct isight *isight = substream->private_data;
106846
106847 - ACCESS_ONCE(isight->pcm_active) = false;
106848 + ACCESS_ONCE_RW(isight->pcm_active) = false;
106849
106850 mutex_lock(&isight->mutex);
106851 isight_stop_streaming(isight);
106852 @@ -430,10 +430,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
106853
106854 switch (cmd) {
106855 case SNDRV_PCM_TRIGGER_START:
106856 - ACCESS_ONCE(isight->pcm_running) = true;
106857 + ACCESS_ONCE_RW(isight->pcm_running) = true;
106858 break;
106859 case SNDRV_PCM_TRIGGER_STOP:
106860 - ACCESS_ONCE(isight->pcm_running) = false;
106861 + ACCESS_ONCE_RW(isight->pcm_running) = false;
106862 break;
106863 default:
106864 return -EINVAL;
106865 diff --git a/sound/firewire/scs1x.c b/sound/firewire/scs1x.c
106866 index 2dba848..c682aef 100644
106867 --- a/sound/firewire/scs1x.c
106868 +++ b/sound/firewire/scs1x.c
106869 @@ -74,7 +74,7 @@ static void scs_output_trigger(struct snd_rawmidi_substream *stream, int up)
106870 {
106871 struct scs *scs = stream->rmidi->private_data;
106872
106873 - ACCESS_ONCE(scs->output) = up ? stream : NULL;
106874 + ACCESS_ONCE_RW(scs->output) = up ? stream : NULL;
106875 if (up) {
106876 scs->output_idle = false;
106877 tasklet_schedule(&scs->tasklet);
106878 @@ -257,7 +257,7 @@ static void scs_input_trigger(struct snd_rawmidi_substream *stream, int up)
106879 {
106880 struct scs *scs = stream->rmidi->private_data;
106881
106882 - ACCESS_ONCE(scs->input) = up ? stream : NULL;
106883 + ACCESS_ONCE_RW(scs->input) = up ? stream : NULL;
106884 }
106885
106886 static void scs_input_escaped_byte(struct snd_rawmidi_substream *stream,
106887 @@ -473,8 +473,8 @@ static void scs_remove(struct fw_unit *unit)
106888
106889 snd_card_disconnect(scs->card);
106890
106891 - ACCESS_ONCE(scs->output) = NULL;
106892 - ACCESS_ONCE(scs->input) = NULL;
106893 + ACCESS_ONCE_RW(scs->output) = NULL;
106894 + ACCESS_ONCE_RW(scs->input) = NULL;
106895
106896 wait_event(scs->idle_wait, scs->output_idle);
106897
106898 diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
106899 index 4e3fcfb..ab45a9d 100644
106900 --- a/sound/isa/sb/emu8000_synth.c
106901 +++ b/sound/isa/sb/emu8000_synth.c
106902 @@ -120,8 +120,8 @@ static int __init alsa_emu8000_init(void)
106903 {
106904
106905 static struct snd_seq_dev_ops ops = {
106906 - snd_emu8000_new_device,
106907 - snd_emu8000_delete_device,
106908 + .init_device = snd_emu8000_new_device,
106909 + .free_device = snd_emu8000_delete_device,
106910 };
106911 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops,
106912 sizeof(struct snd_emu8000*));
106913 diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c
106914 index 048439a..3be9f6f 100644
106915 --- a/sound/oss/sb_audio.c
106916 +++ b/sound/oss/sb_audio.c
106917 @@ -904,7 +904,7 @@ sb16_copy_from_user(int dev,
106918 buf16 = (signed short *)(localbuf + localoffs);
106919 while (c)
106920 {
106921 - locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
106922 + locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
106923 if (copy_from_user(lbuf8,
106924 userbuf+useroffs + p,
106925 locallen))
106926 diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
106927 index f851fd0..92576fb 100644
106928 --- a/sound/oss/swarm_cs4297a.c
106929 +++ b/sound/oss/swarm_cs4297a.c
106930 @@ -2623,7 +2623,6 @@ static int __init cs4297a_init(void)
106931 {
106932 struct cs4297a_state *s;
106933 u32 pwr, id;
106934 - mm_segment_t fs;
106935 int rval;
106936 #ifndef CONFIG_BCM_CS4297A_CSWARM
106937 u64 cfg;
106938 @@ -2713,22 +2712,23 @@ static int __init cs4297a_init(void)
106939 if (!rval) {
106940 char *sb1250_duart_present;
106941
106942 +#if 0
106943 + mm_segment_t fs;
106944 fs = get_fs();
106945 set_fs(KERNEL_DS);
106946 -#if 0
106947 val = SOUND_MASK_LINE;
106948 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
106949 for (i = 0; i < ARRAY_SIZE(initvol); i++) {
106950 val = initvol[i].vol;
106951 mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
106952 }
106953 + set_fs(fs);
106954 // cs4297a_write_ac97(s, 0x18, 0x0808);
106955 #else
106956 // cs4297a_write_ac97(s, 0x5e, 0x180);
106957 cs4297a_write_ac97(s, 0x02, 0x0808);
106958 cs4297a_write_ac97(s, 0x18, 0x0808);
106959 #endif
106960 - set_fs(fs);
106961
106962 list_add(&s->list, &cs4297a_devs);
106963
106964 diff --git a/sound/pci/emu10k1/emu10k1_synth.c b/sound/pci/emu10k1/emu10k1_synth.c
106965 index 4c41c90..37f3631 100644
106966 --- a/sound/pci/emu10k1/emu10k1_synth.c
106967 +++ b/sound/pci/emu10k1/emu10k1_synth.c
106968 @@ -108,8 +108,8 @@ static int __init alsa_emu10k1_synth_init(void)
106969 {
106970
106971 static struct snd_seq_dev_ops ops = {
106972 - snd_emu10k1_synth_new_device,
106973 - snd_emu10k1_synth_delete_device,
106974 + .init_device = snd_emu10k1_synth_new_device,
106975 + .free_device = snd_emu10k1_synth_delete_device,
106976 };
106977 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
106978 sizeof(struct snd_emu10k1_synth_arg));
106979 diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
106980 index 4c20277..91abdce 100644
106981 --- a/sound/pci/hda/hda_codec.c
106982 +++ b/sound/pci/hda/hda_codec.c
106983 @@ -966,14 +966,10 @@ find_codec_preset(struct hda_codec *codec)
106984 mutex_unlock(&preset_mutex);
106985
106986 if (mod_requested < HDA_MODREQ_MAX_COUNT) {
106987 - char name[32];
106988 if (!mod_requested)
106989 - snprintf(name, sizeof(name), "snd-hda-codec-id:%08x",
106990 - codec->vendor_id);
106991 + request_module("snd-hda-codec-id:%08x", codec->vendor_id);
106992 else
106993 - snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*",
106994 - (codec->vendor_id >> 16) & 0xffff);
106995 - request_module(name);
106996 + request_module("snd-hda-codec-id:%04x*", (codec->vendor_id >> 16) & 0xffff);
106997 mod_requested++;
106998 goto again;
106999 }
107000 @@ -2777,7 +2773,7 @@ static int get_kctl_0dB_offset(struct snd_kcontrol *kctl, int *step_to_check)
107001 /* FIXME: set_fs() hack for obtaining user-space TLV data */
107002 mm_segment_t fs = get_fs();
107003 set_fs(get_ds());
107004 - if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), _tlv))
107005 + if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), (unsigned int __force_user *)_tlv))
107006 tlv = _tlv;
107007 set_fs(fs);
107008 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
107009 diff --git a/sound/pci/ymfpci/ymfpci.h b/sound/pci/ymfpci/ymfpci.h
107010 index 4631a23..001ae57 100644
107011 --- a/sound/pci/ymfpci/ymfpci.h
107012 +++ b/sound/pci/ymfpci/ymfpci.h
107013 @@ -358,7 +358,7 @@ struct snd_ymfpci {
107014 spinlock_t reg_lock;
107015 spinlock_t voice_lock;
107016 wait_queue_head_t interrupt_sleep;
107017 - atomic_t interrupt_sleep_count;
107018 + atomic_unchecked_t interrupt_sleep_count;
107019 struct snd_info_entry *proc_entry;
107020 const struct firmware *dsp_microcode;
107021 const struct firmware *controller_microcode;
107022 diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
107023 index 81c916a..516f0bf 100644
107024 --- a/sound/pci/ymfpci/ymfpci_main.c
107025 +++ b/sound/pci/ymfpci/ymfpci_main.c
107026 @@ -204,8 +204,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip)
107027 if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0)
107028 break;
107029 }
107030 - if (atomic_read(&chip->interrupt_sleep_count)) {
107031 - atomic_set(&chip->interrupt_sleep_count, 0);
107032 + if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
107033 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
107034 wake_up(&chip->interrupt_sleep);
107035 }
107036 __end:
107037 @@ -789,7 +789,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip)
107038 continue;
107039 init_waitqueue_entry(&wait, current);
107040 add_wait_queue(&chip->interrupt_sleep, &wait);
107041 - atomic_inc(&chip->interrupt_sleep_count);
107042 + atomic_inc_unchecked(&chip->interrupt_sleep_count);
107043 schedule_timeout_uninterruptible(msecs_to_jiffies(50));
107044 remove_wait_queue(&chip->interrupt_sleep, &wait);
107045 }
107046 @@ -827,8 +827,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
107047 snd_ymfpci_writel(chip, YDSXGR_MODE, mode);
107048 spin_unlock(&chip->reg_lock);
107049
107050 - if (atomic_read(&chip->interrupt_sleep_count)) {
107051 - atomic_set(&chip->interrupt_sleep_count, 0);
107052 + if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
107053 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
107054 wake_up(&chip->interrupt_sleep);
107055 }
107056 }
107057 @@ -2423,7 +2423,7 @@ int snd_ymfpci_create(struct snd_card *card,
107058 spin_lock_init(&chip->reg_lock);
107059 spin_lock_init(&chip->voice_lock);
107060 init_waitqueue_head(&chip->interrupt_sleep);
107061 - atomic_set(&chip->interrupt_sleep_count, 0);
107062 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
107063 chip->card = card;
107064 chip->pci = pci;
107065 chip->irq = -1;
107066 diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
107067 index 5428a1f..474f651 100644
107068 --- a/sound/soc/fsl/fsl_ssi.c
107069 +++ b/sound/soc/fsl/fsl_ssi.c
107070 @@ -1255,7 +1255,6 @@ static int fsl_ssi_probe(struct platform_device *pdev)
107071 {
107072 struct fsl_ssi_private *ssi_private;
107073 int ret = 0;
107074 - struct device_attribute *dev_attr = NULL;
107075 struct device_node *np = pdev->dev.of_node;
107076 const struct of_device_id *of_id;
107077 enum fsl_ssi_type hw_type;
107078 @@ -1481,7 +1480,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
107079 &ssi_private->cpu_dai_drv, 1);
107080 if (ret) {
107081 dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
107082 - goto error_dev;
107083 + goto error_clk;
107084 }
107085
107086 ret = fsl_ssi_debugfs_create(ssi_private, &pdev->dev);
107087 @@ -1562,9 +1561,6 @@ error_pcm:
107088 error_dbgfs:
107089 snd_soc_unregister_component(&pdev->dev);
107090
107091 -error_dev:
107092 - device_remove_file(&pdev->dev, dev_attr);
107093 -
107094 error_clk:
107095 if (ssi_private->ssi_on_imx) {
107096 if (!IS_ERR(ssi_private->baudclk))
107097 diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
107098 index 051c006..70598e8 100644
107099 --- a/sound/soc/soc-core.c
107100 +++ b/sound/soc/soc-core.c
107101 @@ -2255,8 +2255,10 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
107102 if (ret)
107103 return ret;
107104
107105 - ops->warm_reset = snd_soc_ac97_warm_reset;
107106 - ops->reset = snd_soc_ac97_reset;
107107 + pax_open_kernel();
107108 + *(void **)&ops->warm_reset = snd_soc_ac97_warm_reset;
107109 + *(void **)&ops->reset = snd_soc_ac97_reset;
107110 + pax_close_kernel();
107111
107112 snd_ac97_rst_cfg = cfg;
107113 return 0;
107114 diff --git a/sound/synth/emux/emux_seq.c b/sound/synth/emux/emux_seq.c
107115 index 7778b8e..3d619fc 100644
107116 --- a/sound/synth/emux/emux_seq.c
107117 +++ b/sound/synth/emux/emux_seq.c
107118 @@ -33,13 +33,13 @@ static int snd_emux_unuse(void *private_data, struct snd_seq_port_subscribe *inf
107119 * MIDI emulation operators
107120 */
107121 static struct snd_midi_op emux_ops = {
107122 - snd_emux_note_on,
107123 - snd_emux_note_off,
107124 - snd_emux_key_press,
107125 - snd_emux_terminate_note,
107126 - snd_emux_control,
107127 - snd_emux_nrpn,
107128 - snd_emux_sysex,
107129 + .note_on = snd_emux_note_on,
107130 + .note_off = snd_emux_note_off,
107131 + .key_press = snd_emux_key_press,
107132 + .note_terminate = snd_emux_terminate_note,
107133 + .control = snd_emux_control,
107134 + .nrpn = snd_emux_nrpn,
107135 + .sysex = snd_emux_sysex,
107136 };
107137
107138
107139 diff --git a/tools/gcc/.gitignore b/tools/gcc/.gitignore
107140 new file mode 100644
107141 index 0000000..de92ed9
107142 --- /dev/null
107143 +++ b/tools/gcc/.gitignore
107144 @@ -0,0 +1 @@
107145 +randomize_layout_seed.h
107146 diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile
107147 new file mode 100644
107148 index 0000000..7b8921f
107149 --- /dev/null
107150 +++ b/tools/gcc/Makefile
107151 @@ -0,0 +1,52 @@
107152 +#CC := gcc
107153 +#PLUGIN_SOURCE_FILES := pax_plugin.c
107154 +#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES))
107155 +GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
107156 +#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99
107157 +
107158 +ifeq ($(PLUGINCC),$(HOSTCC))
107159 +HOSTLIBS := hostlibs
107160 +HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb
107161 +export HOST_EXTRACFLAGS
107162 +else
107163 +HOSTLIBS := hostcxxlibs
107164 +HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti -ggdb -Wno-unused-parameter -Wno-narrowing -Wno-unused-variable
107165 +export HOST_EXTRACXXFLAGS
107166 +endif
107167 +
107168 +export GCCPLUGINS_DIR HOSTLIBS
107169 +
107170 +$(HOSTLIBS)-$(CONFIG_PAX_CONSTIFY_PLUGIN) := constify_plugin.so
107171 +$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so
107172 +$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so
107173 +$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so
107174 +$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so
107175 +$(HOSTLIBS)-y += colorize_plugin.so
107176 +$(HOSTLIBS)-$(CONFIG_PAX_LATENT_ENTROPY) += latent_entropy_plugin.so
107177 +$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STRUCTLEAK) += structleak_plugin.so
107178 +$(HOSTLIBS)-$(CONFIG_GRKERNSEC_RANDSTRUCT) += randomize_layout_plugin.so
107179 +
107180 +subdir-$(CONFIG_PAX_SIZE_OVERFLOW) := size_overflow_plugin
107181 +subdir- += size_overflow_plugin
107182 +
107183 +always := $($(HOSTLIBS)-y)
107184 +
107185 +constify_plugin-objs := constify_plugin.o
107186 +stackleak_plugin-objs := stackleak_plugin.o
107187 +kallocstat_plugin-objs := kallocstat_plugin.o
107188 +kernexec_plugin-objs := kernexec_plugin.o
107189 +checker_plugin-objs := checker_plugin.o
107190 +colorize_plugin-objs := colorize_plugin.o
107191 +latent_entropy_plugin-objs := latent_entropy_plugin.o
107192 +structleak_plugin-objs := structleak_plugin.o
107193 +randomize_layout_plugin-objs := randomize_layout_plugin.o
107194 +
107195 +$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
107196 +
107197 +quiet_cmd_create_randomize_layout_seed = GENSEED $@
107198 + cmd_create_randomize_layout_seed = \
107199 + $(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
107200 +$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
107201 + $(call if_changed,create_randomize_layout_seed)
107202 +
107203 +targets += randomize_layout_seed.h randomize_layout_hash.h
107204 diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c
107205 new file mode 100644
107206 index 0000000..5452feea
107207 --- /dev/null
107208 +++ b/tools/gcc/checker_plugin.c
107209 @@ -0,0 +1,150 @@
107210 +/*
107211 + * Copyright 2011-2014 by the PaX Team <pageexec@freemail.hu>
107212 + * Licensed under the GPL v2
107213 + *
107214 + * Note: the choice of the license means that the compilation process is
107215 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
107216 + * but for the kernel it doesn't matter since it doesn't link against
107217 + * any of the gcc libraries
107218 + *
107219 + * gcc plugin to implement various sparse (source code checker) features
107220 + *
107221 + * TODO:
107222 + * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch)
107223 + *
107224 + * BUGS:
107225 + * - none known
107226 + */
107227 +
107228 +#include "gcc-common.h"
107229 +
107230 +extern void c_register_addr_space (const char *str, addr_space_t as);
107231 +extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
107232 +extern enum machine_mode default_addr_space_address_mode (addr_space_t);
107233 +extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as);
107234 +extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as);
107235 +extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as);
107236 +
107237 +int plugin_is_GPL_compatible;
107238 +
107239 +static struct plugin_info checker_plugin_info = {
107240 + .version = "201304082245",
107241 + .help = NULL,
107242 +};
107243 +
107244 +#define ADDR_SPACE_KERNEL 0
107245 +#define ADDR_SPACE_FORCE_KERNEL 1
107246 +#define ADDR_SPACE_USER 2
107247 +#define ADDR_SPACE_FORCE_USER 3
107248 +#define ADDR_SPACE_IOMEM 0
107249 +#define ADDR_SPACE_FORCE_IOMEM 0
107250 +#define ADDR_SPACE_PERCPU 0
107251 +#define ADDR_SPACE_FORCE_PERCPU 0
107252 +#define ADDR_SPACE_RCU 0
107253 +#define ADDR_SPACE_FORCE_RCU 0
107254 +
107255 +static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace)
107256 +{
107257 + return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC);
107258 +}
107259 +
107260 +static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace)
107261 +{
107262 + return default_addr_space_address_mode(ADDR_SPACE_GENERIC);
107263 +}
107264 +
107265 +static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as)
107266 +{
107267 + return default_addr_space_valid_pointer_mode(mode, as);
107268 +}
107269 +
107270 +static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as)
107271 +{
107272 + return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC);
107273 +}
107274 +
107275 +static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as)
107276 +{
107277 + return default_addr_space_legitimize_address(x, oldx, mode, as);
107278 +}
107279 +
107280 +static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset)
107281 +{
107282 + if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL)
107283 + return true;
107284 +
107285 + if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER)
107286 + return true;
107287 +
107288 + if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM)
107289 + return true;
107290 +
107291 + if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER)
107292 + return true;
107293 +
107294 + if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM)
107295 + return true;
107296 +
107297 + if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL)
107298 + return true;
107299 +
107300 + if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL)
107301 + return true;
107302 +
107303 + return subset == superset;
107304 +}
107305 +
107306 +static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type)
107307 +{
107308 +// addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type));
107309 +// addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type));
107310 +
107311 + return op;
107312 +}
107313 +
107314 +static void register_checker_address_spaces(void *event_data, void *data)
107315 +{
107316 + c_register_addr_space("__kernel", ADDR_SPACE_KERNEL);
107317 + c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL);
107318 + c_register_addr_space("__user", ADDR_SPACE_USER);
107319 + c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER);
107320 +// c_register_addr_space("__iomem", ADDR_SPACE_IOMEM);
107321 +// c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM);
107322 +// c_register_addr_space("__percpu", ADDR_SPACE_PERCPU);
107323 +// c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU);
107324 +// c_register_addr_space("__rcu", ADDR_SPACE_RCU);
107325 +// c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU);
107326 +
107327 + targetm.addr_space.pointer_mode = checker_addr_space_pointer_mode;
107328 + targetm.addr_space.address_mode = checker_addr_space_address_mode;
107329 + targetm.addr_space.valid_pointer_mode = checker_addr_space_valid_pointer_mode;
107330 + targetm.addr_space.legitimate_address_p = checker_addr_space_legitimate_address_p;
107331 +// targetm.addr_space.legitimize_address = checker_addr_space_legitimize_address;
107332 + targetm.addr_space.subset_p = checker_addr_space_subset_p;
107333 + targetm.addr_space.convert = checker_addr_space_convert;
107334 +}
107335 +
107336 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
107337 +{
107338 + const char * const plugin_name = plugin_info->base_name;
107339 + const int argc = plugin_info->argc;
107340 + const struct plugin_argument * const argv = plugin_info->argv;
107341 + int i;
107342 +
107343 + if (!plugin_default_version_check(version, &gcc_version)) {
107344 + error(G_("incompatible gcc/plugin versions"));
107345 + return 1;
107346 + }
107347 +
107348 + register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info);
107349 +
107350 + for (i = 0; i < argc; ++i)
107351 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
107352 +
107353 + if (TARGET_64BIT == 0)
107354 + return 0;
107355 +
107356 + register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL);
107357 +
107358 + return 0;
107359 +}
107360 diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c
107361 new file mode 100644
107362 index 0000000..54461af
107363 --- /dev/null
107364 +++ b/tools/gcc/colorize_plugin.c
107365 @@ -0,0 +1,210 @@
107366 +/*
107367 + * Copyright 2012-2014 by PaX Team <pageexec@freemail.hu>
107368 + * Licensed under the GPL v2
107369 + *
107370 + * Note: the choice of the license means that the compilation process is
107371 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
107372 + * but for the kernel it doesn't matter since it doesn't link against
107373 + * any of the gcc libraries
107374 + *
107375 + * gcc plugin to colorize diagnostic output
107376 + *
107377 + */
107378 +
107379 +#include "gcc-common.h"
107380 +
107381 +int plugin_is_GPL_compatible;
107382 +
107383 +static struct plugin_info colorize_plugin_info = {
107384 + .version = "201404202350",
107385 + .help = "color=[never|always|auto]\tdetermine when to colorize\n",
107386 +};
107387 +
107388 +#define GREEN "\033[32m\033[K"
107389 +#define LIGHTGREEN "\033[1;32m\033[K"
107390 +#define YELLOW "\033[33m\033[K"
107391 +#define LIGHTYELLOW "\033[1;33m\033[K"
107392 +#define RED "\033[31m\033[K"
107393 +#define LIGHTRED "\033[1;31m\033[K"
107394 +#define BLUE "\033[34m\033[K"
107395 +#define LIGHTBLUE "\033[1;34m\033[K"
107396 +#define BRIGHT "\033[1;m\033[K"
107397 +#define NORMAL "\033[m\033[K"
107398 +
107399 +static diagnostic_starter_fn old_starter;
107400 +static diagnostic_finalizer_fn old_finalizer;
107401 +
107402 +static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
107403 +{
107404 + const char *color;
107405 + char *newprefix;
107406 +
107407 + switch (diagnostic->kind) {
107408 + case DK_NOTE:
107409 + color = LIGHTBLUE;
107410 + break;
107411 +
107412 + case DK_PEDWARN:
107413 + case DK_WARNING:
107414 + color = LIGHTYELLOW;
107415 + break;
107416 +
107417 + case DK_ERROR:
107418 + case DK_FATAL:
107419 + case DK_ICE:
107420 + case DK_PERMERROR:
107421 + case DK_SORRY:
107422 + color = LIGHTRED;
107423 + break;
107424 +
107425 + default:
107426 + color = NORMAL;
107427 + }
107428 +
107429 + old_starter(context, diagnostic);
107430 + if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix))
107431 + return;
107432 + pp_destroy_prefix(context->printer);
107433 + pp_set_prefix(context->printer, newprefix);
107434 +}
107435 +
107436 +static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
107437 +{
107438 + old_finalizer(context, diagnostic);
107439 +}
107440 +
107441 +static void colorize_arm(void)
107442 +{
107443 + old_starter = diagnostic_starter(global_dc);
107444 + old_finalizer = diagnostic_finalizer(global_dc);
107445 +
107446 + diagnostic_starter(global_dc) = start_colorize;
107447 + diagnostic_finalizer(global_dc) = finalize_colorize;
107448 +}
107449 +
107450 +static unsigned int execute_colorize_rearm(void)
107451 +{
107452 + if (diagnostic_starter(global_dc) == start_colorize)
107453 + return 0;
107454 +
107455 + colorize_arm();
107456 + return 0;
107457 +}
107458 +
107459 +#if BUILDING_GCC_VERSION >= 4009
107460 +static const struct pass_data colorize_rearm_pass_data = {
107461 +#else
107462 +struct simple_ipa_opt_pass colorize_rearm_pass = {
107463 + .pass = {
107464 +#endif
107465 + .type = SIMPLE_IPA_PASS,
107466 + .name = "colorize_rearm",
107467 +#if BUILDING_GCC_VERSION >= 4008
107468 + .optinfo_flags = OPTGROUP_NONE,
107469 +#endif
107470 +#if BUILDING_GCC_VERSION >= 4009
107471 + .has_gate = false,
107472 + .has_execute = true,
107473 +#else
107474 + .gate = NULL,
107475 + .execute = execute_colorize_rearm,
107476 + .sub = NULL,
107477 + .next = NULL,
107478 + .static_pass_number = 0,
107479 +#endif
107480 + .tv_id = TV_NONE,
107481 + .properties_required = 0,
107482 + .properties_provided = 0,
107483 + .properties_destroyed = 0,
107484 + .todo_flags_start = 0,
107485 + .todo_flags_finish = 0
107486 +#if BUILDING_GCC_VERSION < 4009
107487 + }
107488 +#endif
107489 +};
107490 +
107491 +#if BUILDING_GCC_VERSION >= 4009
107492 +namespace {
107493 +class colorize_rearm_pass : public simple_ipa_opt_pass {
107494 +public:
107495 + colorize_rearm_pass() : simple_ipa_opt_pass(colorize_rearm_pass_data, g) {}
107496 + unsigned int execute() { return execute_colorize_rearm(); }
107497 +};
107498 +}
107499 +
107500 +static opt_pass *make_colorize_rearm_pass(void)
107501 +{
107502 + return new colorize_rearm_pass();
107503 +}
107504 +#else
107505 +static struct opt_pass *make_colorize_rearm_pass(void)
107506 +{
107507 + return &colorize_rearm_pass.pass;
107508 +}
107509 +#endif
107510 +
107511 +static void colorize_start_unit(void *gcc_data, void *user_data)
107512 +{
107513 + colorize_arm();
107514 +}
107515 +
107516 +static bool should_colorize(void)
107517 +{
107518 +#if BUILDING_GCC_VERSION >= 4009
107519 + return false;
107520 +#else
107521 + char const *t = getenv("TERM");
107522 +
107523 + return t && strcmp(t, "dumb") && isatty(STDERR_FILENO);
107524 +#endif
107525 +}
107526 +
107527 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
107528 +{
107529 + const char * const plugin_name = plugin_info->base_name;
107530 + const int argc = plugin_info->argc;
107531 + const struct plugin_argument * const argv = plugin_info->argv;
107532 + int i;
107533 + struct register_pass_info colorize_rearm_pass_info;
107534 + bool colorize;
107535 +
107536 + colorize_rearm_pass_info.pass = make_colorize_rearm_pass();
107537 + colorize_rearm_pass_info.reference_pass_name = "*free_lang_data";
107538 + colorize_rearm_pass_info.ref_pass_instance_number = 1;
107539 + colorize_rearm_pass_info.pos_op = PASS_POS_INSERT_AFTER;
107540 +
107541 + if (!plugin_default_version_check(version, &gcc_version)) {
107542 + error(G_("incompatible gcc/plugin versions"));
107543 + return 1;
107544 + }
107545 +
107546 + register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info);
107547 +
107548 + colorize = getenv("GCC_COLORS") ? should_colorize() : false;
107549 +
107550 + for (i = 0; i < argc; ++i) {
107551 + if (!strcmp(argv[i].key, "color")) {
107552 + if (!argv[i].value) {
107553 + error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
107554 + continue;
107555 + }
107556 + if (!strcmp(argv[i].value, "always"))
107557 + colorize = true;
107558 + else if (!strcmp(argv[i].value, "never"))
107559 + colorize = false;
107560 + else if (!strcmp(argv[i].value, "auto"))
107561 + colorize = should_colorize();
107562 + else
107563 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
107564 + continue;
107565 + }
107566 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
107567 + }
107568 +
107569 + if (colorize) {
107570 + // TODO: parse GCC_COLORS as used by gcc 4.9+
107571 + register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL);
107572 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info);
107573 + }
107574 + return 0;
107575 +}
107576 diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c
107577 new file mode 100644
107578 index 0000000..82bc5a8
107579 --- /dev/null
107580 +++ b/tools/gcc/constify_plugin.c
107581 @@ -0,0 +1,557 @@
107582 +/*
107583 + * Copyright 2011 by Emese Revfy <re.emese@gmail.com>
107584 + * Copyright 2011-2014 by PaX Team <pageexec@freemail.hu>
107585 + * Licensed under the GPL v2, or (at your option) v3
107586 + *
107587 + * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification.
107588 + *
107589 + * Homepage:
107590 + * http://www.grsecurity.net/~ephox/const_plugin/
107591 + *
107592 + * Usage:
107593 + * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c
107594 + * $ gcc -fplugin=constify_plugin.so test.c -O2
107595 + */
107596 +
107597 +#include "gcc-common.h"
107598 +
107599 +// unused C type flag in all versions 4.5-4.9
107600 +#define TYPE_CONSTIFY_VISITED(TYPE) TYPE_LANG_FLAG_4(TYPE)
107601 +
107602 +int plugin_is_GPL_compatible;
107603 +
107604 +static struct plugin_info const_plugin_info = {
107605 + .version = "201401270210",
107606 + .help = "no-constify\tturn off constification\n",
107607 +};
107608 +
107609 +typedef struct {
107610 + bool has_fptr_field;
107611 + bool has_writable_field;
107612 + bool has_do_const_field;
107613 + bool has_no_const_field;
107614 +} constify_info;
107615 +
107616 +static const_tree get_field_type(const_tree field)
107617 +{
107618 + return strip_array_types(TREE_TYPE(field));
107619 +}
107620 +
107621 +static bool is_fptr(const_tree field)
107622 +{
107623 + const_tree ptr = get_field_type(field);
107624 +
107625 + if (TREE_CODE(ptr) != POINTER_TYPE)
107626 + return false;
107627 +
107628 + return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE;
107629 +}
107630 +
107631 +/*
107632 + * determine whether the given structure type meets the requirements for automatic constification,
107633 + * including the constification attributes on nested structure types
107634 + */
107635 +static void constifiable(const_tree node, constify_info *cinfo)
107636 +{
107637 + const_tree field;
107638 +
107639 + gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
107640 +
107641 + // e.g., pointer to structure fields while still constructing the structure type
107642 + if (TYPE_FIELDS(node) == NULL_TREE)
107643 + return;
107644 +
107645 + for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
107646 + const_tree type = get_field_type(field);
107647 + enum tree_code code = TREE_CODE(type);
107648 +
107649 + if (node == type)
107650 + continue;
107651 +
107652 + if (is_fptr(field))
107653 + cinfo->has_fptr_field = true;
107654 + else if (!TREE_READONLY(field))
107655 + cinfo->has_writable_field = true;
107656 +
107657 + if (code == RECORD_TYPE || code == UNION_TYPE) {
107658 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
107659 + cinfo->has_do_const_field = true;
107660 + else if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type)))
107661 + cinfo->has_no_const_field = true;
107662 + else
107663 + constifiable(type, cinfo);
107664 + }
107665 + }
107666 +}
107667 +
107668 +static bool constified(const_tree node)
107669 +{
107670 + constify_info cinfo = {
107671 + .has_fptr_field = false,
107672 + .has_writable_field = false,
107673 + .has_do_const_field = false,
107674 + .has_no_const_field = false
107675 + };
107676 +
107677 + gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
107678 +
107679 + if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) {
107680 +// gcc_assert(!TYPE_READONLY(node));
107681 + return false;
107682 + }
107683 +
107684 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(node))) {
107685 + gcc_assert(TYPE_READONLY(node));
107686 + return true;
107687 + }
107688 +
107689 + constifiable(node, &cinfo);
107690 + if ((!cinfo.has_fptr_field || cinfo.has_writable_field) && !cinfo.has_do_const_field)
107691 + return false;
107692 +
107693 + return TYPE_READONLY(node);
107694 +}
107695 +
107696 +static void deconstify_tree(tree node);
107697 +
107698 +static void deconstify_type(tree type)
107699 +{
107700 + tree field;
107701 +
107702 + gcc_assert(TREE_CODE(type) == RECORD_TYPE || TREE_CODE(type) == UNION_TYPE);
107703 +
107704 + for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
107705 + const_tree fieldtype = get_field_type(field);
107706 +
107707 + // special case handling of simple ptr-to-same-array-type members
107708 + if (TREE_CODE(TREE_TYPE(field)) == POINTER_TYPE) {
107709 + tree ptrtype = TREE_TYPE(TREE_TYPE(field));
107710 +
107711 + if (TREE_TYPE(TREE_TYPE(field)) == type)
107712 + continue;
107713 + if (TREE_CODE(ptrtype) != RECORD_TYPE && TREE_CODE(ptrtype) != UNION_TYPE)
107714 + continue;
107715 + if (!constified(ptrtype))
107716 + continue;
107717 + if (TYPE_MAIN_VARIANT(ptrtype) == TYPE_MAIN_VARIANT(type)) {
107718 + TREE_TYPE(field) = copy_node(TREE_TYPE(field));
107719 + TREE_TYPE(TREE_TYPE(field)) = build_qualified_type(type, TYPE_QUALS(ptrtype) & ~TYPE_QUAL_CONST);
107720 + }
107721 + continue;
107722 + }
107723 + if (TREE_CODE(fieldtype) != RECORD_TYPE && TREE_CODE(fieldtype) != UNION_TYPE)
107724 + continue;
107725 + if (!constified(fieldtype))
107726 + continue;
107727 +
107728 + deconstify_tree(field);
107729 + TREE_READONLY(field) = 0;
107730 + }
107731 + TYPE_READONLY(type) = 0;
107732 + C_TYPE_FIELDS_READONLY(type) = 0;
107733 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
107734 + TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
107735 + TYPE_ATTRIBUTES(type) = remove_attribute("do_const", TYPE_ATTRIBUTES(type));
107736 + }
107737 +}
107738 +
107739 +static void deconstify_tree(tree node)
107740 +{
107741 + tree old_type, new_type, field;
107742 +
107743 + old_type = TREE_TYPE(node);
107744 + while (TREE_CODE(old_type) == ARRAY_TYPE && TREE_CODE(TREE_TYPE(old_type)) != ARRAY_TYPE) {
107745 + node = TREE_TYPE(node) = copy_node(old_type);
107746 + old_type = TREE_TYPE(old_type);
107747 + }
107748 +
107749 + gcc_assert(TREE_CODE(old_type) == RECORD_TYPE || TREE_CODE(old_type) == UNION_TYPE);
107750 + gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST));
107751 +
107752 + new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST);
107753 + TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type));
107754 + for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field))
107755 + DECL_FIELD_CONTEXT(field) = new_type;
107756 +
107757 + deconstify_type(new_type);
107758 +
107759 + TREE_TYPE(node) = new_type;
107760 +}
107761 +
107762 +static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
107763 +{
107764 + tree type;
107765 + constify_info cinfo = {
107766 + .has_fptr_field = false,
107767 + .has_writable_field = false,
107768 + .has_do_const_field = false,
107769 + .has_no_const_field = false
107770 + };
107771 +
107772 + *no_add_attrs = true;
107773 + if (TREE_CODE(*node) == FUNCTION_DECL) {
107774 + error("%qE attribute does not apply to functions (%qF)", name, *node);
107775 + return NULL_TREE;
107776 + }
107777 +
107778 + if (TREE_CODE(*node) == PARM_DECL) {
107779 + error("%qE attribute does not apply to function parameters (%qD)", name, *node);
107780 + return NULL_TREE;
107781 + }
107782 +
107783 + if (TREE_CODE(*node) == VAR_DECL) {
107784 + error("%qE attribute does not apply to variables (%qD)", name, *node);
107785 + return NULL_TREE;
107786 + }
107787 +
107788 + if (TYPE_P(*node)) {
107789 + type = *node;
107790 + } else {
107791 + gcc_assert(TREE_CODE(*node) == TYPE_DECL);
107792 + type = TREE_TYPE(*node);
107793 + }
107794 +
107795 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) {
107796 + error("%qE attribute used on %qT applies to struct and union types only", name, type);
107797 + return NULL_TREE;
107798 + }
107799 +
107800 + if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
107801 + error("%qE attribute is already applied to the type %qT", name, type);
107802 + return NULL_TREE;
107803 + }
107804 +
107805 + if (TYPE_P(*node)) {
107806 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
107807 + error("%qE attribute used on type %qT is incompatible with 'do_const'", name, type);
107808 + else
107809 + *no_add_attrs = false;
107810 + return NULL_TREE;
107811 + }
107812 +
107813 + constifiable(type, &cinfo);
107814 + if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
107815 + deconstify_tree(*node);
107816 + TYPE_CONSTIFY_VISITED(TREE_TYPE(*node)) = 1;
107817 + return NULL_TREE;
107818 + }
107819 +
107820 + error("%qE attribute used on type %qT that is not constified", name, type);
107821 + return NULL_TREE;
107822 +}
107823 +
107824 +static void constify_type(tree type)
107825 +{
107826 + TYPE_READONLY(type) = 1;
107827 + C_TYPE_FIELDS_READONLY(type) = 1;
107828 + TYPE_CONSTIFY_VISITED(type) = 1;
107829 +// TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
107830 +// TYPE_ATTRIBUTES(type) = tree_cons(get_identifier("do_const"), NULL_TREE, TYPE_ATTRIBUTES(type));
107831 +}
107832 +
107833 +static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
107834 +{
107835 + *no_add_attrs = true;
107836 + if (!TYPE_P(*node)) {
107837 + error("%qE attribute applies to types only (%qD)", name, *node);
107838 + return NULL_TREE;
107839 + }
107840 +
107841 + if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) {
107842 + error("%qE attribute used on %qT applies to struct and union types only", name, *node);
107843 + return NULL_TREE;
107844 + }
107845 +
107846 + if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(*node))) {
107847 + error("%qE attribute used on %qT is already applied to the type", name, *node);
107848 + return NULL_TREE;
107849 + }
107850 +
107851 + if (lookup_attribute("no_const", TYPE_ATTRIBUTES(*node))) {
107852 + error("%qE attribute used on %qT is incompatible with 'no_const'", name, *node);
107853 + return NULL_TREE;
107854 + }
107855 +
107856 + *no_add_attrs = false;
107857 + return NULL_TREE;
107858 +}
107859 +
107860 +static struct attribute_spec no_const_attr = {
107861 + .name = "no_const",
107862 + .min_length = 0,
107863 + .max_length = 0,
107864 + .decl_required = false,
107865 + .type_required = false,
107866 + .function_type_required = false,
107867 + .handler = handle_no_const_attribute,
107868 +#if BUILDING_GCC_VERSION >= 4007
107869 + .affects_type_identity = true
107870 +#endif
107871 +};
107872 +
107873 +static struct attribute_spec do_const_attr = {
107874 + .name = "do_const",
107875 + .min_length = 0,
107876 + .max_length = 0,
107877 + .decl_required = false,
107878 + .type_required = false,
107879 + .function_type_required = false,
107880 + .handler = handle_do_const_attribute,
107881 +#if BUILDING_GCC_VERSION >= 4007
107882 + .affects_type_identity = true
107883 +#endif
107884 +};
107885 +
107886 +static void register_attributes(void *event_data, void *data)
107887 +{
107888 + register_attribute(&no_const_attr);
107889 + register_attribute(&do_const_attr);
107890 +}
107891 +
107892 +static void finish_type(void *event_data, void *data)
107893 +{
107894 + tree type = (tree)event_data;
107895 + constify_info cinfo = {
107896 + .has_fptr_field = false,
107897 + .has_writable_field = false,
107898 + .has_do_const_field = false,
107899 + .has_no_const_field = false
107900 + };
107901 +
107902 + if (type == NULL_TREE || type == error_mark_node)
107903 + return;
107904 +
107905 + if (TYPE_FIELDS(type) == NULL_TREE || TYPE_CONSTIFY_VISITED(type))
107906 + return;
107907 +
107908 + constifiable(type, &cinfo);
107909 +
107910 + if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type))) {
107911 + if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || cinfo.has_do_const_field) {
107912 + deconstify_type(type);
107913 + TYPE_CONSTIFY_VISITED(type) = 1;
107914 + } else
107915 + error("'no_const' attribute used on type %qT that is not constified", type);
107916 + return;
107917 + }
107918 +
107919 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
107920 + if (!cinfo.has_writable_field) {
107921 + error("'do_const' attribute used on type %qT that is%sconstified", type, cinfo.has_fptr_field ? " " : " not ");
107922 + return;
107923 + }
107924 + constify_type(type);
107925 + return;
107926 + }
107927 +
107928 + if (cinfo.has_fptr_field && !cinfo.has_writable_field) {
107929 + if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
107930 + error("'do_const' attribute used on type %qT that is constified", type);
107931 + return;
107932 + }
107933 + constify_type(type);
107934 + return;
107935 + }
107936 +
107937 + deconstify_type(type);
107938 + TYPE_CONSTIFY_VISITED(type) = 1;
107939 +}
107940 +
107941 +static void check_global_variables(void *event_data, void *data)
107942 +{
107943 +#if BUILDING_GCC_VERSION >= 4009
107944 + varpool_node *node;
107945 +#else
107946 + struct varpool_node *node;
107947 +#endif
107948 +
107949 + FOR_EACH_VARIABLE(node) {
107950 + tree var = NODE_DECL(node);
107951 + tree type = TREE_TYPE(var);
107952 +
107953 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
107954 + continue;
107955 +
107956 + if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
107957 + continue;
107958 +
107959 + if (!TYPE_CONSTIFY_VISITED(type))
107960 + continue;
107961 +
107962 + if (DECL_EXTERNAL(var))
107963 + continue;
107964 +
107965 + if (DECL_INITIAL(var))
107966 + continue;
107967 +
107968 + // this works around a gcc bug/feature where uninitialized globals
107969 + // are moved into the .bss section regardless of any constification
107970 + DECL_INITIAL(var) = build_constructor(type, NULL);
107971 +// inform(DECL_SOURCE_LOCATION(var), "constified variable %qE moved into .rodata", var);
107972 + }
107973 +}
107974 +
107975 +static unsigned int check_local_variables(void)
107976 +{
107977 + unsigned int ret = 0;
107978 + tree var;
107979 +
107980 + unsigned int i;
107981 +
107982 + FOR_EACH_LOCAL_DECL(cfun, i, var) {
107983 + tree type = TREE_TYPE(var);
107984 +
107985 + gcc_assert(DECL_P(var));
107986 + if (is_global_var(var))
107987 + continue;
107988 +
107989 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
107990 + continue;
107991 +
107992 + if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
107993 + continue;
107994 +
107995 + if (!TYPE_CONSTIFY_VISITED(type))
107996 + continue;
107997 +
107998 + error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var);
107999 + ret = 1;
108000 + }
108001 + return ret;
108002 +}
108003 +
108004 +#if BUILDING_GCC_VERSION >= 4009
108005 +static const struct pass_data check_local_variables_pass_data = {
108006 +#else
108007 +static struct gimple_opt_pass check_local_variables_pass = {
108008 + .pass = {
108009 +#endif
108010 + .type = GIMPLE_PASS,
108011 + .name = "check_local_variables",
108012 +#if BUILDING_GCC_VERSION >= 4008
108013 + .optinfo_flags = OPTGROUP_NONE,
108014 +#endif
108015 +#if BUILDING_GCC_VERSION >= 4009
108016 + .has_gate = false,
108017 + .has_execute = true,
108018 +#else
108019 + .gate = NULL,
108020 + .execute = check_local_variables,
108021 + .sub = NULL,
108022 + .next = NULL,
108023 + .static_pass_number = 0,
108024 +#endif
108025 + .tv_id = TV_NONE,
108026 + .properties_required = 0,
108027 + .properties_provided = 0,
108028 + .properties_destroyed = 0,
108029 + .todo_flags_start = 0,
108030 + .todo_flags_finish = 0
108031 +#if BUILDING_GCC_VERSION < 4009
108032 + }
108033 +#endif
108034 +};
108035 +
108036 +#if BUILDING_GCC_VERSION >= 4009
108037 +namespace {
108038 +class check_local_variables_pass : public gimple_opt_pass {
108039 +public:
108040 + check_local_variables_pass() : gimple_opt_pass(check_local_variables_pass_data, g) {}
108041 + unsigned int execute() { return check_local_variables(); }
108042 +};
108043 +}
108044 +
108045 +static opt_pass *make_check_local_variables_pass(void)
108046 +{
108047 + return new check_local_variables_pass();
108048 +}
108049 +#else
108050 +static struct opt_pass *make_check_local_variables_pass(void)
108051 +{
108052 + return &check_local_variables_pass.pass;
108053 +}
108054 +#endif
108055 +
108056 +static struct {
108057 + const char *name;
108058 + const char *asm_op;
108059 +} sections[] = {
108060 + {".init.rodata", "\t.section\t.init.rodata,\"a\""},
108061 + {".ref.rodata", "\t.section\t.ref.rodata,\"a\""},
108062 + {".devinit.rodata", "\t.section\t.devinit.rodata,\"a\""},
108063 + {".devexit.rodata", "\t.section\t.devexit.rodata,\"a\""},
108064 + {".cpuinit.rodata", "\t.section\t.cpuinit.rodata,\"a\""},
108065 + {".cpuexit.rodata", "\t.section\t.cpuexit.rodata,\"a\""},
108066 + {".meminit.rodata", "\t.section\t.meminit.rodata,\"a\""},
108067 + {".memexit.rodata", "\t.section\t.memexit.rodata,\"a\""},
108068 + {".data..read_only", "\t.section\t.data..read_only,\"a\""},
108069 +};
108070 +
108071 +static unsigned int (*old_section_type_flags)(tree decl, const char *name, int reloc);
108072 +
108073 +static unsigned int constify_section_type_flags(tree decl, const char *name, int reloc)
108074 +{
108075 + size_t i;
108076 +
108077 + for (i = 0; i < ARRAY_SIZE(sections); i++)
108078 + if (!strcmp(sections[i].name, name))
108079 + return 0;
108080 + return old_section_type_flags(decl, name, reloc);
108081 +}
108082 +
108083 +static void constify_start_unit(void *gcc_data, void *user_data)
108084 +{
108085 +// size_t i;
108086 +
108087 +// for (i = 0; i < ARRAY_SIZE(sections); i++)
108088 +// sections[i].section = get_unnamed_section(0, output_section_asm_op, sections[i].asm_op);
108089 +// sections[i].section = get_section(sections[i].name, 0, NULL);
108090 +
108091 + old_section_type_flags = targetm.section_type_flags;
108092 + targetm.section_type_flags = constify_section_type_flags;
108093 +}
108094 +
108095 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
108096 +{
108097 + const char * const plugin_name = plugin_info->base_name;
108098 + const int argc = plugin_info->argc;
108099 + const struct plugin_argument * const argv = plugin_info->argv;
108100 + int i;
108101 + bool constify = true;
108102 +
108103 + struct register_pass_info check_local_variables_pass_info;
108104 +
108105 + check_local_variables_pass_info.pass = make_check_local_variables_pass();
108106 + check_local_variables_pass_info.reference_pass_name = "ssa";
108107 + check_local_variables_pass_info.ref_pass_instance_number = 1;
108108 + check_local_variables_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
108109 +
108110 + if (!plugin_default_version_check(version, &gcc_version)) {
108111 + error(G_("incompatible gcc/plugin versions"));
108112 + return 1;
108113 + }
108114 +
108115 + for (i = 0; i < argc; ++i) {
108116 + if (!(strcmp(argv[i].key, "no-constify"))) {
108117 + constify = false;
108118 + continue;
108119 + }
108120 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
108121 + }
108122 +
108123 + if (strcmp(lang_hooks.name, "GNU C")) {
108124 + inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
108125 + constify = false;
108126 + }
108127 +
108128 + register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info);
108129 + if (constify) {
108130 + register_callback(plugin_name, PLUGIN_ALL_IPA_PASSES_START, check_global_variables, NULL);
108131 + register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
108132 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &check_local_variables_pass_info);
108133 + register_callback(plugin_name, PLUGIN_START_UNIT, constify_start_unit, NULL);
108134 + }
108135 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
108136 +
108137 + return 0;
108138 +}
108139 diff --git a/tools/gcc/gcc-common.h b/tools/gcc/gcc-common.h
108140 new file mode 100644
108141 index 0000000..e90c205
108142 --- /dev/null
108143 +++ b/tools/gcc/gcc-common.h
108144 @@ -0,0 +1,295 @@
108145 +#ifndef GCC_COMMON_H_INCLUDED
108146 +#define GCC_COMMON_H_INCLUDED
108147 +
108148 +#include "plugin.h"
108149 +#include "bversion.h"
108150 +#include "plugin-version.h"
108151 +#include "config.h"
108152 +#include "system.h"
108153 +#include "coretypes.h"
108154 +#include "tm.h"
108155 +#include "line-map.h"
108156 +#include "input.h"
108157 +#include "tree.h"
108158 +
108159 +#include "tree-inline.h"
108160 +#include "version.h"
108161 +#include "rtl.h"
108162 +#include "tm_p.h"
108163 +#include "flags.h"
108164 +//#include "insn-attr.h"
108165 +//#include "insn-config.h"
108166 +//#include "insn-flags.h"
108167 +#include "hard-reg-set.h"
108168 +//#include "recog.h"
108169 +#include "output.h"
108170 +#include "except.h"
108171 +#include "function.h"
108172 +#include "toplev.h"
108173 +//#include "expr.h"
108174 +#include "basic-block.h"
108175 +#include "intl.h"
108176 +#include "ggc.h"
108177 +//#include "regs.h"
108178 +#include "timevar.h"
108179 +
108180 +#include "params.h"
108181 +#include "pointer-set.h"
108182 +#include "emit-rtl.h"
108183 +//#include "reload.h"
108184 +//#include "ira.h"
108185 +//#include "dwarf2asm.h"
108186 +#include "debug.h"
108187 +#include "target.h"
108188 +#include "langhooks.h"
108189 +#include "cfgloop.h"
108190 +//#include "hosthooks.h"
108191 +#include "cgraph.h"
108192 +#include "opts.h"
108193 +//#include "coverage.h"
108194 +//#include "value-prof.h"
108195 +
108196 +#if BUILDING_GCC_VERSION >= 4007
108197 +#include "tree-pretty-print.h"
108198 +#include "gimple-pretty-print.h"
108199 +#include "c-tree.h"
108200 +//#include "alloc-pool.h"
108201 +#endif
108202 +
108203 +#if BUILDING_GCC_VERSION <= 4008
108204 +#include "tree-flow.h"
108205 +#else
108206 +#include "tree-cfgcleanup.h"
108207 +#endif
108208 +
108209 +#include "diagnostic.h"
108210 +//#include "tree-diagnostic.h"
108211 +#include "tree-dump.h"
108212 +#include "tree-pass.h"
108213 +//#include "df.h"
108214 +#include "predict.h"
108215 +#include "ipa-utils.h"
108216 +
108217 +#if BUILDING_GCC_VERSION >= 4009
108218 +#include "varasm.h"
108219 +#include "stor-layout.h"
108220 +#include "internal-fn.h"
108221 +#include "gimple-expr.h"
108222 +//#include "diagnostic-color.h"
108223 +#include "context.h"
108224 +#include "tree-ssa-alias.h"
108225 +#include "stringpool.h"
108226 +#include "tree-ssanames.h"
108227 +#include "print-tree.h"
108228 +#include "tree-eh.h"
108229 +#include "stmt.h"
108230 +#endif
108231 +
108232 +#include "gimple.h"
108233 +
108234 +#if BUILDING_GCC_VERSION >= 4009
108235 +#include "tree-ssa-operands.h"
108236 +#include "tree-phinodes.h"
108237 +#include "tree-cfg.h"
108238 +#include "gimple-iterator.h"
108239 +#include "gimple-ssa.h"
108240 +#include "ssa-iterators.h"
108241 +#endif
108242 +
108243 +//#include "lto/lto.h"
108244 +//#include "data-streamer.h"
108245 +//#include "lto-compress.h"
108246 +
108247 +//#include "expr.h" where are you...
108248 +extern rtx emit_move_insn(rtx x, rtx y);
108249 +
108250 +// missing from basic_block.h...
108251 +extern void debug_dominance_info(enum cdi_direction dir);
108252 +extern void debug_dominance_tree(enum cdi_direction dir, basic_block root);
108253 +
108254 +#define __unused __attribute__((__unused__))
108255 +
108256 +#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
108257 +#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
108258 +#define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
108259 +#define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
108260 +
108261 +#if BUILDING_GCC_VERSION == 4005
108262 +#define FOR_EACH_LOCAL_DECL(FUN, I, D) for (tree vars = (FUN)->local_decls; vars && (D = TREE_VALUE(vars)); vars = TREE_CHAIN(vars), I)
108263 +#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
108264 +#define FOR_EACH_VEC_ELT(T, V, I, P) for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
108265 +#define TODO_rebuild_cgraph_edges 0
108266 +
108267 +static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
108268 +{
108269 + tree fndecl;
108270 +
108271 + if (!is_gimple_call(stmt))
108272 + return false;
108273 + fndecl = gimple_call_fndecl(stmt);
108274 + if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
108275 + return false;
108276 +// print_node(stderr, "pax", fndecl, 4);
108277 + return DECL_FUNCTION_CODE(fndecl) == code;
108278 +}
108279 +
108280 +static inline bool is_simple_builtin(tree decl)
108281 +{
108282 + if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
108283 + return false;
108284 +
108285 + switch (DECL_FUNCTION_CODE(decl)) {
108286 + /* Builtins that expand to constants. */
108287 + case BUILT_IN_CONSTANT_P:
108288 + case BUILT_IN_EXPECT:
108289 + case BUILT_IN_OBJECT_SIZE:
108290 + case BUILT_IN_UNREACHABLE:
108291 + /* Simple register moves or loads from stack. */
108292 + case BUILT_IN_RETURN_ADDRESS:
108293 + case BUILT_IN_EXTRACT_RETURN_ADDR:
108294 + case BUILT_IN_FROB_RETURN_ADDR:
108295 + case BUILT_IN_RETURN:
108296 + case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
108297 + case BUILT_IN_FRAME_ADDRESS:
108298 + case BUILT_IN_VA_END:
108299 + case BUILT_IN_STACK_SAVE:
108300 + case BUILT_IN_STACK_RESTORE:
108301 + /* Exception state returns or moves registers around. */
108302 + case BUILT_IN_EH_FILTER:
108303 + case BUILT_IN_EH_POINTER:
108304 + case BUILT_IN_EH_COPY_VALUES:
108305 + return true;
108306 +
108307 + default:
108308 + return false;
108309 + }
108310 +}
108311 +#endif
108312 +
108313 +#if BUILDING_GCC_VERSION <= 4006
108314 +#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
108315 +#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
108316 +
108317 +// should come from c-tree.h if only it were installed for gcc 4.5...
108318 +#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
108319 +
108320 +#define get_random_seed(noinit) ({ \
108321 + unsigned HOST_WIDE_INT seed; \
108322 + sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed); \
108323 + seed * seed; })
108324 +
108325 +static inline bool gimple_clobber_p(gimple s)
108326 +{
108327 + return false;
108328 +}
108329 +
108330 +static inline tree builtin_decl_implicit(enum built_in_function fncode)
108331 +{
108332 + return implicit_built_in_decls[fncode];
108333 +}
108334 +
108335 +static inline struct cgraph_node *cgraph_get_create_node(tree decl)
108336 +{
108337 + struct cgraph_node *node = cgraph_get_node(decl);
108338 +
108339 + return node ? node : cgraph_node(decl);
108340 +}
108341 +
108342 +static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
108343 +{
108344 + return node->analyzed && !node->thunk.thunk_p && !node->alias;
108345 +}
108346 +
108347 +static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
108348 +{
108349 + struct cgraph_node *node;
108350 +
108351 + for (node = cgraph_nodes; node; node = node->next)
108352 + if (cgraph_function_with_gimple_body_p(node))
108353 + return node;
108354 + return NULL;
108355 +}
108356 +
108357 +static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
108358 +{
108359 + for (node = node->next; node; node = node->next)
108360 + if (cgraph_function_with_gimple_body_p(node))
108361 + return node;
108362 + return NULL;
108363 +}
108364 +
108365 +#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
108366 + for ((node) = cgraph_first_function_with_gimple_body(); (node); \
108367 + (node) = cgraph_next_function_with_gimple_body(node))
108368 +#endif
108369 +
108370 +#if BUILDING_GCC_VERSION == 4006
108371 +extern void debug_gimple_stmt(gimple);
108372 +extern void debug_gimple_seq(gimple_seq);
108373 +extern void print_gimple_seq(FILE *, gimple_seq, int, int);
108374 +extern void print_gimple_stmt(FILE *, gimple, int, int);
108375 +extern void print_gimple_expr(FILE *, gimple, int, int);
108376 +extern void dump_gimple_stmt(pretty_printer *, gimple, int, int);
108377 +#endif
108378 +
108379 +#if BUILDING_GCC_VERSION <= 4007
108380 +#define FOR_EACH_VARIABLE(node) for (node = varpool_nodes; node; node = node->next)
108381 +#define PROP_loops 0
108382 +
108383 +static inline int bb_loop_depth(const_basic_block bb)
108384 +{
108385 + return bb->loop_father ? loop_depth(bb->loop_father) : 0;
108386 +}
108387 +
108388 +static inline bool gimple_store_p(gimple gs)
108389 +{
108390 + tree lhs = gimple_get_lhs(gs);
108391 + return lhs && !is_gimple_reg(lhs);
108392 +}
108393 +#endif
108394 +
108395 +#if BUILDING_GCC_VERSION >= 4007
108396 +#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
108397 + cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq))
108398 +#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
108399 + cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
108400 +#endif
108401 +
108402 +#if BUILDING_GCC_VERSION <= 4008
108403 +#define ENTRY_BLOCK_PTR_FOR_FN(FN) ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
108404 +#define EXIT_BLOCK_PTR_FOR_FN(FN) EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
108405 +#define basic_block_info_for_fn(FN) ((FN)->cfg->x_basic_block_info)
108406 +#define n_basic_blocks_for_fn(FN) ((FN)->cfg->x_n_basic_blocks)
108407 +#define n_edges_for_fn(FN) ((FN)->cfg->x_n_edges)
108408 +#define last_basic_block_for_fn(FN) ((FN)->cfg->x_last_basic_block)
108409 +#define label_to_block_map_for_fn(FN) ((FN)->cfg->x_label_to_block_map)
108410 +#define profile_status_for_fn(FN) ((FN)->cfg->x_profile_status)
108411 +
108412 +static inline const char *get_tree_code_name(enum tree_code code)
108413 +{
108414 + gcc_assert(code < MAX_TREE_CODES);
108415 + return tree_code_name[code];
108416 +}
108417 +
108418 +#define ipa_remove_stmt_references(cnode, stmt)
108419 +#endif
108420 +
108421 +#if BUILDING_GCC_VERSION == 4008
108422 +#define NODE_DECL(node) node->symbol.decl
108423 +#else
108424 +#define NODE_DECL(node) node->decl
108425 +#endif
108426 +
108427 +#if BUILDING_GCC_VERSION >= 4008
108428 +#define add_referenced_var(var)
108429 +#define mark_sym_for_renaming(var)
108430 +#define varpool_mark_needed_node(node)
108431 +#define TODO_dump_func 0
108432 +#define TODO_dump_cgraph 0
108433 +#endif
108434 +
108435 +#if BUILDING_GCC_VERSION >= 4009
108436 +#define TODO_ggc_collect 0
108437 +#endif
108438 +
108439 +#endif
108440 diff --git a/tools/gcc/gen-random-seed.sh b/tools/gcc/gen-random-seed.sh
108441 new file mode 100644
108442 index 0000000..7514850
108443 --- /dev/null
108444 +++ b/tools/gcc/gen-random-seed.sh
108445 @@ -0,0 +1,8 @@
108446 +#!/bin/sh
108447 +
108448 +if [ ! -f "$1" ]; then
108449 + SEED=`od -A n -t x8 -N 32 /dev/urandom | tr -d ' \n'`
108450 + echo "const char *randstruct_seed = \"$SEED\";" > "$1"
108451 + HASH=`echo -n "$SEED" | sha256sum | cut -d" " -f1 | tr -d ' \n'`
108452 + echo "#define RANDSTRUCT_HASHED_SEED \"$HASH\"" > "$2"
108453 +fi
108454 diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c
108455 new file mode 100644
108456 index 0000000..d81c094
108457 --- /dev/null
108458 +++ b/tools/gcc/kallocstat_plugin.c
108459 @@ -0,0 +1,183 @@
108460 +/*
108461 + * Copyright 2011-2014 by the PaX Team <pageexec@freemail.hu>
108462 + * Licensed under the GPL v2
108463 + *
108464 + * Note: the choice of the license means that the compilation process is
108465 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
108466 + * but for the kernel it doesn't matter since it doesn't link against
108467 + * any of the gcc libraries
108468 + *
108469 + * gcc plugin to find the distribution of k*alloc sizes
108470 + *
108471 + * TODO:
108472 + *
108473 + * BUGS:
108474 + * - none known
108475 + */
108476 +
108477 +#include "gcc-common.h"
108478 +
108479 +int plugin_is_GPL_compatible;
108480 +
108481 +static struct plugin_info kallocstat_plugin_info = {
108482 + .version = "201401260140",
108483 + .help = NULL
108484 +};
108485 +
108486 +static const char * const kalloc_functions[] = {
108487 + "__kmalloc",
108488 + "kmalloc",
108489 + "kmalloc_large",
108490 + "kmalloc_node",
108491 + "kmalloc_order",
108492 + "kmalloc_order_trace",
108493 + "kmalloc_slab",
108494 + "kzalloc",
108495 + "kzalloc_node",
108496 +};
108497 +
108498 +static bool is_kalloc(const char *fnname)
108499 +{
108500 + size_t i;
108501 +
108502 + for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++)
108503 + if (!strcmp(fnname, kalloc_functions[i]))
108504 + return true;
108505 + return false;
108506 +}
108507 +
108508 +static unsigned int execute_kallocstat(void)
108509 +{
108510 + basic_block bb;
108511 +
108512 + // 1. loop through BBs and GIMPLE statements
108513 + FOR_EACH_BB_FN(bb, cfun) {
108514 + gimple_stmt_iterator gsi;
108515 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
108516 + // gimple match:
108517 + tree fndecl, size;
108518 + gimple stmt;
108519 + const char *fnname;
108520 +
108521 + // is it a call
108522 + stmt = gsi_stmt(gsi);
108523 + if (!is_gimple_call(stmt))
108524 + continue;
108525 + fndecl = gimple_call_fndecl(stmt);
108526 + if (fndecl == NULL_TREE)
108527 + continue;
108528 + if (TREE_CODE(fndecl) != FUNCTION_DECL)
108529 + continue;
108530 +
108531 + // is it a call to k*alloc
108532 + fnname = DECL_NAME_POINTER(fndecl);
108533 + if (!is_kalloc(fnname))
108534 + continue;
108535 +
108536 + // is the size arg const or the result of a simple const assignment
108537 + size = gimple_call_arg(stmt, 0);
108538 + while (true) {
108539 + expanded_location xloc;
108540 + size_t size_val;
108541 +
108542 + if (TREE_CONSTANT(size)) {
108543 + xloc = expand_location(gimple_location(stmt));
108544 + if (!xloc.file)
108545 + xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
108546 + size_val = TREE_INT_CST_LOW(size);
108547 + fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line);
108548 + break;
108549 + }
108550 +
108551 + if (TREE_CODE(size) != SSA_NAME)
108552 + break;
108553 + stmt = SSA_NAME_DEF_STMT(size);
108554 +//debug_gimple_stmt(stmt);
108555 +//debug_tree(size);
108556 + if (!stmt || !is_gimple_assign(stmt))
108557 + break;
108558 + if (gimple_num_ops(stmt) != 2)
108559 + break;
108560 + size = gimple_assign_rhs1(stmt);
108561 + }
108562 +//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
108563 +//debug_tree(gimple_call_fn(call_stmt));
108564 +//print_node(stderr, "pax", fndecl, 4);
108565 + }
108566 + }
108567 +
108568 + return 0;
108569 +}
108570 +
108571 +#if BUILDING_GCC_VERSION >= 4009
108572 +static const struct pass_data kallocstat_pass_data = {
108573 +#else
108574 +static struct gimple_opt_pass kallocstat_pass = {
108575 + .pass = {
108576 +#endif
108577 + .type = GIMPLE_PASS,
108578 + .name = "kallocstat",
108579 +#if BUILDING_GCC_VERSION >= 4008
108580 + .optinfo_flags = OPTGROUP_NONE,
108581 +#endif
108582 +#if BUILDING_GCC_VERSION >= 4009
108583 + .has_gate = false,
108584 + .has_execute = true,
108585 +#else
108586 + .gate = NULL,
108587 + .execute = execute_kallocstat,
108588 + .sub = NULL,
108589 + .next = NULL,
108590 + .static_pass_number = 0,
108591 +#endif
108592 + .tv_id = TV_NONE,
108593 + .properties_required = 0,
108594 + .properties_provided = 0,
108595 + .properties_destroyed = 0,
108596 + .todo_flags_start = 0,
108597 + .todo_flags_finish = 0
108598 +#if BUILDING_GCC_VERSION < 4009
108599 + }
108600 +#endif
108601 +};
108602 +
108603 +#if BUILDING_GCC_VERSION >= 4009
108604 +namespace {
108605 +class kallocstat_pass : public gimple_opt_pass {
108606 +public:
108607 + kallocstat_pass() : gimple_opt_pass(kallocstat_pass_data, g) {}
108608 + unsigned int execute() { return execute_kallocstat(); }
108609 +};
108610 +}
108611 +
108612 +static opt_pass *make_kallocstat_pass(void)
108613 +{
108614 + return new kallocstat_pass();
108615 +}
108616 +#else
108617 +static struct opt_pass *make_kallocstat_pass(void)
108618 +{
108619 + return &kallocstat_pass.pass;
108620 +}
108621 +#endif
108622 +
108623 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
108624 +{
108625 + const char * const plugin_name = plugin_info->base_name;
108626 + struct register_pass_info kallocstat_pass_info;
108627 +
108628 + kallocstat_pass_info.pass = make_kallocstat_pass();
108629 + kallocstat_pass_info.reference_pass_name = "ssa";
108630 + kallocstat_pass_info.ref_pass_instance_number = 1;
108631 + kallocstat_pass_info.pos_op = PASS_POS_INSERT_AFTER;
108632 +
108633 + if (!plugin_default_version_check(version, &gcc_version)) {
108634 + error(G_("incompatible gcc/plugin versions"));
108635 + return 1;
108636 + }
108637 +
108638 + register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info);
108639 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info);
108640 +
108641 + return 0;
108642 +}
108643 diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c
108644 new file mode 100644
108645 index 0000000..89f256d
108646 --- /dev/null
108647 +++ b/tools/gcc/kernexec_plugin.c
108648 @@ -0,0 +1,522 @@
108649 +/*
108650 + * Copyright 2011-2014 by the PaX Team <pageexec@freemail.hu>
108651 + * Licensed under the GPL v2
108652 + *
108653 + * Note: the choice of the license means that the compilation process is
108654 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
108655 + * but for the kernel it doesn't matter since it doesn't link against
108656 + * any of the gcc libraries
108657 + *
108658 + * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386
108659 + *
108660 + * TODO:
108661 + *
108662 + * BUGS:
108663 + * - none known
108664 + */
108665 +
108666 +#include "gcc-common.h"
108667 +
108668 +int plugin_is_GPL_compatible;
108669 +
108670 +static struct plugin_info kernexec_plugin_info = {
108671 + .version = "201401260140",
108672 + .help = "method=[bts|or]\tinstrumentation method\n"
108673 +};
108674 +
108675 +static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *);
108676 +static void (*kernexec_instrument_retaddr)(rtx);
108677 +
108678 +/*
108679 + * add special KERNEXEC instrumentation: reload %r12 after it has been clobbered
108680 + */
108681 +static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi)
108682 +{
108683 + gimple asm_movabs_stmt;
108684 +
108685 + // build asm volatile("movabs $0x8000000000000000, %%r12\n\t" : : : );
108686 + asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r12\n\t", NULL, NULL, NULL, NULL);
108687 + gimple_asm_set_volatile(asm_movabs_stmt, true);
108688 + gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING);
108689 + update_stmt(asm_movabs_stmt);
108690 +}
108691 +
108692 +/*
108693 + * find all asm() stmts that clobber r12 and add a reload of r12
108694 + */
108695 +static unsigned int execute_kernexec_reload(void)
108696 +{
108697 + basic_block bb;
108698 +
108699 + // 1. loop through BBs and GIMPLE statements
108700 + FOR_EACH_BB_FN(bb, cfun) {
108701 + gimple_stmt_iterator gsi;
108702 +
108703 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
108704 + // gimple match: __asm__ ("" : : : "r12");
108705 + gimple asm_stmt;
108706 + size_t nclobbers;
108707 +
108708 + // is it an asm ...
108709 + asm_stmt = gsi_stmt(gsi);
108710 + if (gimple_code(asm_stmt) != GIMPLE_ASM)
108711 + continue;
108712 +
108713 + // ... clobbering r12
108714 + nclobbers = gimple_asm_nclobbers(asm_stmt);
108715 + while (nclobbers--) {
108716 + tree op = gimple_asm_clobber_op(asm_stmt, nclobbers);
108717 + if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r12"))
108718 + continue;
108719 + kernexec_reload_fptr_mask(&gsi);
108720 +//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO);
108721 + break;
108722 + }
108723 + }
108724 + }
108725 +
108726 + return 0;
108727 +}
108728 +
108729 +/*
108730 + * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce
108731 + * a non-canonical address from a userland ptr and will just trigger a GPF on dereference
108732 + */
108733 +static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi)
108734 +{
108735 + gimple assign_intptr, assign_new_fptr, call_stmt;
108736 + tree intptr, orptr, old_fptr, new_fptr, kernexec_mask;
108737 +
108738 + call_stmt = gsi_stmt(*gsi);
108739 + old_fptr = gimple_call_fn(call_stmt);
108740 +
108741 + // create temporary unsigned long variable used for bitops and cast fptr to it
108742 + intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts");
108743 + add_referenced_var(intptr);
108744 + intptr = make_ssa_name(intptr, NULL);
108745 + assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr));
108746 + SSA_NAME_DEF_STMT(intptr) = assign_intptr;
108747 + gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
108748 + update_stmt(assign_intptr);
108749 +
108750 + // apply logical or to temporary unsigned long and bitmask
108751 + kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL);
108752 +// kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL);
108753 + orptr = fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask);
108754 + intptr = make_ssa_name(SSA_NAME_VAR(intptr), NULL);
108755 + assign_intptr = gimple_build_assign(intptr, orptr);
108756 + SSA_NAME_DEF_STMT(intptr) = assign_intptr;
108757 + gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
108758 + update_stmt(assign_intptr);
108759 +
108760 + // cast temporary unsigned long back to a temporary fptr variable
108761 + new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr");
108762 + add_referenced_var(new_fptr);
108763 + new_fptr = make_ssa_name(new_fptr, NULL);
108764 + assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr));
108765 + SSA_NAME_DEF_STMT(new_fptr) = assign_new_fptr;
108766 + gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT);
108767 + update_stmt(assign_new_fptr);
108768 +
108769 + // replace call stmt fn with the new fptr
108770 + gimple_call_set_fn(call_stmt, new_fptr);
108771 + update_stmt(call_stmt);
108772 +}
108773 +
108774 +static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi)
108775 +{
108776 + gimple asm_or_stmt, call_stmt;
108777 + tree old_fptr, new_fptr, input, output;
108778 +#if BUILDING_GCC_VERSION <= 4007
108779 + VEC(tree, gc) *inputs = NULL;
108780 + VEC(tree, gc) *outputs = NULL;
108781 +#else
108782 + vec<tree, va_gc> *inputs = NULL;
108783 + vec<tree, va_gc> *outputs = NULL;
108784 +#endif
108785 +
108786 + call_stmt = gsi_stmt(*gsi);
108787 + old_fptr = gimple_call_fn(call_stmt);
108788 +
108789 + // create temporary fptr variable
108790 + new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or");
108791 + add_referenced_var(new_fptr);
108792 + new_fptr = make_ssa_name(new_fptr, NULL);
108793 +
108794 + // build asm volatile("orq %%r12, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr));
108795 + input = build_tree_list(NULL_TREE, build_string(1, "0"));
108796 + input = chainon(NULL_TREE, build_tree_list(input, old_fptr));
108797 + output = build_tree_list(NULL_TREE, build_string(2, "=r"));
108798 + output = chainon(NULL_TREE, build_tree_list(output, new_fptr));
108799 +#if BUILDING_GCC_VERSION <= 4007
108800 + VEC_safe_push(tree, gc, inputs, input);
108801 + VEC_safe_push(tree, gc, outputs, output);
108802 +#else
108803 + vec_safe_push(inputs, input);
108804 + vec_safe_push(outputs, output);
108805 +#endif
108806 + asm_or_stmt = gimple_build_asm_vec("orq %%r12, %0\n\t", inputs, outputs, NULL, NULL);
108807 + SSA_NAME_DEF_STMT(new_fptr) = asm_or_stmt;
108808 + gimple_asm_set_volatile(asm_or_stmt, true);
108809 + gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT);
108810 + update_stmt(asm_or_stmt);
108811 +
108812 + // replace call stmt fn with the new fptr
108813 + gimple_call_set_fn(call_stmt, new_fptr);
108814 + update_stmt(call_stmt);
108815 +}
108816 +
108817 +/*
108818 + * find all C level function pointer dereferences and forcibly set the highest bit of the pointer
108819 + */
108820 +static unsigned int execute_kernexec_fptr(void)
108821 +{
108822 + basic_block bb;
108823 +
108824 + // 1. loop through BBs and GIMPLE statements
108825 + FOR_EACH_BB_FN(bb, cfun) {
108826 + gimple_stmt_iterator gsi;
108827 +
108828 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
108829 + // gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D));
108830 + tree fn;
108831 + gimple call_stmt;
108832 +
108833 + // is it a call ...
108834 + call_stmt = gsi_stmt(gsi);
108835 + if (!is_gimple_call(call_stmt))
108836 + continue;
108837 + fn = gimple_call_fn(call_stmt);
108838 + if (TREE_CODE(fn) == ADDR_EXPR)
108839 + continue;
108840 + if (TREE_CODE(fn) != SSA_NAME)
108841 + gcc_unreachable();
108842 +
108843 + // ... through a function pointer
108844 + if (SSA_NAME_VAR(fn) != NULL_TREE) {
108845 + fn = SSA_NAME_VAR(fn);
108846 + if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL) {
108847 + debug_tree(fn);
108848 + gcc_unreachable();
108849 + }
108850 + }
108851 + fn = TREE_TYPE(fn);
108852 + if (TREE_CODE(fn) != POINTER_TYPE)
108853 + continue;
108854 + fn = TREE_TYPE(fn);
108855 + if (TREE_CODE(fn) != FUNCTION_TYPE)
108856 + continue;
108857 +
108858 + kernexec_instrument_fptr(&gsi);
108859 +
108860 +//debug_tree(gimple_call_fn(call_stmt));
108861 +//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
108862 + }
108863 + }
108864 +
108865 + return 0;
108866 +}
108867 +
108868 +// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn
108869 +static void kernexec_instrument_retaddr_bts(rtx insn)
108870 +{
108871 + rtx btsq;
108872 + rtvec argvec, constraintvec, labelvec;
108873 + int line;
108874 +
108875 + // create asm volatile("btsq $63,(%%rsp)":::)
108876 + argvec = rtvec_alloc(0);
108877 + constraintvec = rtvec_alloc(0);
108878 + labelvec = rtvec_alloc(0);
108879 + line = expand_location(RTL_LOCATION(insn)).line;
108880 + btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
108881 + MEM_VOLATILE_P(btsq) = 1;
108882 +// RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS
108883 + emit_insn_before(btsq, insn);
108884 +}
108885 +
108886 +// add special KERNEXEC instrumentation: orq %r12,(%rsp) just before retn
108887 +static void kernexec_instrument_retaddr_or(rtx insn)
108888 +{
108889 + rtx orq;
108890 + rtvec argvec, constraintvec, labelvec;
108891 + int line;
108892 +
108893 + // create asm volatile("orq %%r12,(%%rsp)":::)
108894 + argvec = rtvec_alloc(0);
108895 + constraintvec = rtvec_alloc(0);
108896 + labelvec = rtvec_alloc(0);
108897 + line = expand_location(RTL_LOCATION(insn)).line;
108898 + orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r12,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
108899 + MEM_VOLATILE_P(orq) = 1;
108900 +// RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS
108901 + emit_insn_before(orq, insn);
108902 +}
108903 +
108904 +/*
108905 + * find all asm level function returns and forcibly set the highest bit of the return address
108906 + */
108907 +static unsigned int execute_kernexec_retaddr(void)
108908 +{
108909 + rtx insn;
108910 +
108911 +// if (stack_realign_drap)
108912 +// inform(DECL_SOURCE_LOCATION(current_function_decl), "drap detected in %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
108913 +
108914 + // 1. find function returns
108915 + for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
108916 + // rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil))
108917 + // (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil))
108918 + // (jump_insn 97 96 98 6 (simple_return) fptr.c:50 -1 (nil) -> simple_return)
108919 + rtx body;
108920 +
108921 + // is it a retn
108922 + if (!JUMP_P(insn))
108923 + continue;
108924 + body = PATTERN(insn);
108925 + if (GET_CODE(body) == PARALLEL)
108926 + body = XVECEXP(body, 0, 0);
108927 + if (!ANY_RETURN_P(body))
108928 + continue;
108929 + kernexec_instrument_retaddr(insn);
108930 + }
108931 +
108932 +// print_simple_rtl(stderr, get_insns());
108933 +// print_rtl(stderr, get_insns());
108934 +
108935 + return 0;
108936 +}
108937 +
108938 +static bool kernexec_cmodel_check(void)
108939 +{
108940 + tree section;
108941 +
108942 + if (ix86_cmodel != CM_KERNEL)
108943 + return false;
108944 +
108945 + section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
108946 + if (!section || !TREE_VALUE(section))
108947 + return true;
108948 +
108949 + section = TREE_VALUE(TREE_VALUE(section));
108950 + if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10))
108951 + return true;
108952 +
108953 + return false;
108954 +}
108955 +
108956 +#if BUILDING_GCC_VERSION >= 4009
108957 +static const struct pass_data kernexec_reload_pass_data = {
108958 +#else
108959 +static struct gimple_opt_pass kernexec_reload_pass = {
108960 + .pass = {
108961 +#endif
108962 + .type = GIMPLE_PASS,
108963 + .name = "kernexec_reload",
108964 +#if BUILDING_GCC_VERSION >= 4008
108965 + .optinfo_flags = OPTGROUP_NONE,
108966 +#endif
108967 +#if BUILDING_GCC_VERSION >= 4009
108968 + .has_gate = true,
108969 + .has_execute = true,
108970 +#else
108971 + .gate = kernexec_cmodel_check,
108972 + .execute = execute_kernexec_reload,
108973 + .sub = NULL,
108974 + .next = NULL,
108975 + .static_pass_number = 0,
108976 +#endif
108977 + .tv_id = TV_NONE,
108978 + .properties_required = 0,
108979 + .properties_provided = 0,
108980 + .properties_destroyed = 0,
108981 + .todo_flags_start = 0,
108982 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
108983 +#if BUILDING_GCC_VERSION < 4009
108984 + }
108985 +#endif
108986 +};
108987 +
108988 +#if BUILDING_GCC_VERSION >= 4009
108989 +static const struct pass_data kernexec_fptr_pass_data = {
108990 +#else
108991 +static struct gimple_opt_pass kernexec_fptr_pass = {
108992 + .pass = {
108993 +#endif
108994 + .type = GIMPLE_PASS,
108995 + .name = "kernexec_fptr",
108996 +#if BUILDING_GCC_VERSION >= 4008
108997 + .optinfo_flags = OPTGROUP_NONE,
108998 +#endif
108999 +#if BUILDING_GCC_VERSION >= 4009
109000 + .has_gate = true,
109001 + .has_execute = true,
109002 +#else
109003 + .gate = kernexec_cmodel_check,
109004 + .execute = execute_kernexec_fptr,
109005 + .sub = NULL,
109006 + .next = NULL,
109007 + .static_pass_number = 0,
109008 +#endif
109009 + .tv_id = TV_NONE,
109010 + .properties_required = 0,
109011 + .properties_provided = 0,
109012 + .properties_destroyed = 0,
109013 + .todo_flags_start = 0,
109014 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
109015 +#if BUILDING_GCC_VERSION < 4009
109016 + }
109017 +#endif
109018 +};
109019 +
109020 +#if BUILDING_GCC_VERSION >= 4009
109021 +static const struct pass_data kernexec_retaddr_pass_data = {
109022 +#else
109023 +static struct rtl_opt_pass kernexec_retaddr_pass = {
109024 + .pass = {
109025 +#endif
109026 + .type = RTL_PASS,
109027 + .name = "kernexec_retaddr",
109028 +#if BUILDING_GCC_VERSION >= 4008
109029 + .optinfo_flags = OPTGROUP_NONE,
109030 +#endif
109031 +#if BUILDING_GCC_VERSION >= 4009
109032 + .has_gate = true,
109033 + .has_execute = true,
109034 +#else
109035 + .gate = kernexec_cmodel_check,
109036 + .execute = execute_kernexec_retaddr,
109037 + .sub = NULL,
109038 + .next = NULL,
109039 + .static_pass_number = 0,
109040 +#endif
109041 + .tv_id = TV_NONE,
109042 + .properties_required = 0,
109043 + .properties_provided = 0,
109044 + .properties_destroyed = 0,
109045 + .todo_flags_start = 0,
109046 + .todo_flags_finish = TODO_dump_func | TODO_ggc_collect
109047 +#if BUILDING_GCC_VERSION < 4009
109048 + }
109049 +#endif
109050 +};
109051 +
109052 +#if BUILDING_GCC_VERSION >= 4009
109053 +namespace {
109054 +class kernexec_reload_pass : public gimple_opt_pass {
109055 +public:
109056 + kernexec_reload_pass() : gimple_opt_pass(kernexec_reload_pass_data, g) {}
109057 + bool gate() { return kernexec_cmodel_check(); }
109058 + unsigned int execute() { return execute_kernexec_reload(); }
109059 +};
109060 +
109061 +class kernexec_fptr_pass : public gimple_opt_pass {
109062 +public:
109063 + kernexec_fptr_pass() : gimple_opt_pass(kernexec_fptr_pass_data, g) {}
109064 + bool gate() { return kernexec_cmodel_check(); }
109065 + unsigned int execute() { return execute_kernexec_fptr(); }
109066 +};
109067 +
109068 +class kernexec_retaddr_pass : public rtl_opt_pass {
109069 +public:
109070 + kernexec_retaddr_pass() : rtl_opt_pass(kernexec_retaddr_pass_data, g) {}
109071 + bool gate() { return kernexec_cmodel_check(); }
109072 + unsigned int execute() { return execute_kernexec_retaddr(); }
109073 +};
109074 +}
109075 +
109076 +static opt_pass *make_kernexec_reload_pass(void)
109077 +{
109078 + return new kernexec_reload_pass();
109079 +}
109080 +
109081 +static opt_pass *make_kernexec_fptr_pass(void)
109082 +{
109083 + return new kernexec_fptr_pass();
109084 +}
109085 +
109086 +static opt_pass *make_kernexec_retaddr_pass(void)
109087 +{
109088 + return new kernexec_retaddr_pass();
109089 +}
109090 +#else
109091 +static struct opt_pass *make_kernexec_reload_pass(void)
109092 +{
109093 + return &kernexec_reload_pass.pass;
109094 +}
109095 +
109096 +static struct opt_pass *make_kernexec_fptr_pass(void)
109097 +{
109098 + return &kernexec_fptr_pass.pass;
109099 +}
109100 +
109101 +static struct opt_pass *make_kernexec_retaddr_pass(void)
109102 +{
109103 + return &kernexec_retaddr_pass.pass;
109104 +}
109105 +#endif
109106 +
109107 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
109108 +{
109109 + const char * const plugin_name = plugin_info->base_name;
109110 + const int argc = plugin_info->argc;
109111 + const struct plugin_argument * const argv = plugin_info->argv;
109112 + int i;
109113 + struct register_pass_info kernexec_reload_pass_info;
109114 + struct register_pass_info kernexec_fptr_pass_info;
109115 + struct register_pass_info kernexec_retaddr_pass_info;
109116 +
109117 + kernexec_reload_pass_info.pass = make_kernexec_reload_pass();
109118 + kernexec_reload_pass_info.reference_pass_name = "ssa";
109119 + kernexec_reload_pass_info.ref_pass_instance_number = 1;
109120 + kernexec_reload_pass_info.pos_op = PASS_POS_INSERT_AFTER;
109121 +
109122 + kernexec_fptr_pass_info.pass = make_kernexec_fptr_pass();
109123 + kernexec_fptr_pass_info.reference_pass_name = "ssa";
109124 + kernexec_fptr_pass_info.ref_pass_instance_number = 1;
109125 + kernexec_fptr_pass_info.pos_op = PASS_POS_INSERT_AFTER;
109126 +
109127 + kernexec_retaddr_pass_info.pass = make_kernexec_retaddr_pass();
109128 + kernexec_retaddr_pass_info.reference_pass_name = "pro_and_epilogue";
109129 + kernexec_retaddr_pass_info.ref_pass_instance_number = 1;
109130 + kernexec_retaddr_pass_info.pos_op = PASS_POS_INSERT_AFTER;
109131 +
109132 + if (!plugin_default_version_check(version, &gcc_version)) {
109133 + error(G_("incompatible gcc/plugin versions"));
109134 + return 1;
109135 + }
109136 +
109137 + register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info);
109138 +
109139 + if (TARGET_64BIT == 0)
109140 + return 0;
109141 +
109142 + for (i = 0; i < argc; ++i) {
109143 + if (!strcmp(argv[i].key, "method")) {
109144 + if (!argv[i].value) {
109145 + error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
109146 + continue;
109147 + }
109148 + if (!strcmp(argv[i].value, "bts")) {
109149 + kernexec_instrument_fptr = kernexec_instrument_fptr_bts;
109150 + kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts;
109151 + } else if (!strcmp(argv[i].value, "or")) {
109152 + kernexec_instrument_fptr = kernexec_instrument_fptr_or;
109153 + kernexec_instrument_retaddr = kernexec_instrument_retaddr_or;
109154 + fix_register("r12", 1, 1);
109155 + } else
109156 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
109157 + continue;
109158 + }
109159 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
109160 + }
109161 + if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr)
109162 + error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name);
109163 +
109164 + if (kernexec_instrument_fptr == kernexec_instrument_fptr_or)
109165 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info);
109166 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info);
109167 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info);
109168 +
109169 + return 0;
109170 +}
109171 diff --git a/tools/gcc/latent_entropy_plugin.c b/tools/gcc/latent_entropy_plugin.c
109172 new file mode 100644
109173 index 0000000..39d7cc7
109174 --- /dev/null
109175 +++ b/tools/gcc/latent_entropy_plugin.c
109176 @@ -0,0 +1,462 @@
109177 +/*
109178 + * Copyright 2012-2014 by the PaX Team <pageexec@freemail.hu>
109179 + * Licensed under the GPL v2
109180 + *
109181 + * Note: the choice of the license means that the compilation process is
109182 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
109183 + * but for the kernel it doesn't matter since it doesn't link against
109184 + * any of the gcc libraries
109185 + *
109186 + * gcc plugin to help generate a little bit of entropy from program state,
109187 + * used throughout the uptime of the kernel
109188 + *
109189 + * TODO:
109190 + * - add ipa pass to identify not explicitly marked candidate functions
109191 + * - mix in more program state (function arguments/return values, loop variables, etc)
109192 + * - more instrumentation control via attribute parameters
109193 + *
109194 + * BUGS:
109195 + * - LTO needs -flto-partition=none for now
109196 + */
109197 +
109198 +#include "gcc-common.h"
109199 +
109200 +int plugin_is_GPL_compatible;
109201 +
109202 +static tree latent_entropy_decl;
109203 +
109204 +static struct plugin_info latent_entropy_plugin_info = {
109205 + .version = "201403280150",
109206 + .help = NULL
109207 +};
109208 +
109209 +static unsigned HOST_WIDE_INT seed;
109210 +static unsigned HOST_WIDE_INT get_random_const(void)
109211 +{
109212 + unsigned int i;
109213 + unsigned HOST_WIDE_INT ret = 0;
109214 +
109215 + for (i = 0; i < 8 * sizeof ret; i++) {
109216 + ret = (ret << 1) | (seed & 1);
109217 + seed >>= 1;
109218 + if (ret & 1)
109219 + seed ^= 0xD800000000000000ULL;
109220 + }
109221 +
109222 + return ret;
109223 +}
109224 +
109225 +static tree handle_latent_entropy_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
109226 +{
109227 + tree type;
109228 + unsigned long long mask;
109229 +#if BUILDING_GCC_VERSION <= 4007
109230 + VEC(constructor_elt, gc) *vals;
109231 +#else
109232 + vec<constructor_elt, va_gc> *vals;
109233 +#endif
109234 +
109235 + switch (TREE_CODE(*node)) {
109236 + default:
109237 + *no_add_attrs = true;
109238 + error("%qE attribute only applies to functions and variables", name);
109239 + break;
109240 +
109241 + case VAR_DECL:
109242 + if (DECL_INITIAL(*node)) {
109243 + *no_add_attrs = true;
109244 + error("variable %qD with %qE attribute must not be initialized", *node, name);
109245 + break;
109246 + }
109247 +
109248 + if (!TREE_STATIC(*node)) {
109249 + *no_add_attrs = true;
109250 + error("variable %qD with %qE attribute must not be local", *node, name);
109251 + break;
109252 + }
109253 +
109254 + type = TREE_TYPE(*node);
109255 + switch (TREE_CODE(type)) {
109256 + default:
109257 + *no_add_attrs = true;
109258 + error("variable %qD with %qE attribute must be an integer or a fixed length integer array type or a fixed sized structure with integer fields", *node, name);
109259 + break;
109260 +
109261 + case RECORD_TYPE: {
109262 + tree field;
109263 + unsigned int nelt = 0;
109264 +
109265 + for (field = TYPE_FIELDS(type); field; nelt++, field = TREE_CHAIN(field)) {
109266 + tree fieldtype;
109267 +
109268 + fieldtype = TREE_TYPE(field);
109269 + if (TREE_CODE(fieldtype) != INTEGER_TYPE) {
109270 + *no_add_attrs = true;
109271 + error("structure variable %qD with %qE attribute has a non-integer field %qE", *node, name, field);
109272 + break;
109273 + }
109274 + }
109275 +
109276 + if (field)
109277 + break;
109278 +
109279 +#if BUILDING_GCC_VERSION <= 4007
109280 + vals = VEC_alloc(constructor_elt, gc, nelt);
109281 +#else
109282 + vec_alloc(vals, nelt);
109283 +#endif
109284 +
109285 + for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
109286 + tree fieldtype;
109287 +
109288 + fieldtype = TREE_TYPE(field);
109289 + mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(fieldtype)) - 1);
109290 + mask = 2 * (mask - 1) + 1;
109291 +
109292 + if (TYPE_UNSIGNED(fieldtype))
109293 + CONSTRUCTOR_APPEND_ELT(vals, field, build_int_cstu(fieldtype, mask & get_random_const()));
109294 + else
109295 + CONSTRUCTOR_APPEND_ELT(vals, field, build_int_cst(fieldtype, mask & get_random_const()));
109296 + }
109297 +
109298 + DECL_INITIAL(*node) = build_constructor(type, vals);
109299 +//debug_tree(DECL_INITIAL(*node));
109300 + break;
109301 + }
109302 +
109303 + case INTEGER_TYPE:
109304 + mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(type)) - 1);
109305 + mask = 2 * (mask - 1) + 1;
109306 +
109307 + if (TYPE_UNSIGNED(type))
109308 + DECL_INITIAL(*node) = build_int_cstu(type, mask & get_random_const());
109309 + else
109310 + DECL_INITIAL(*node) = build_int_cst(type, mask & get_random_const());
109311 + break;
109312 +
109313 + case ARRAY_TYPE: {
109314 + tree elt_type, array_size, elt_size;
109315 + unsigned int i, nelt;
109316 +
109317 + elt_type = TREE_TYPE(type);
109318 + elt_size = TYPE_SIZE_UNIT(TREE_TYPE(type));
109319 + array_size = TYPE_SIZE_UNIT(type);
109320 +
109321 + if (TREE_CODE(elt_type) != INTEGER_TYPE || !array_size || TREE_CODE(array_size) != INTEGER_CST) {
109322 + *no_add_attrs = true;
109323 + error("array variable %qD with %qE attribute must be a fixed length integer array type", *node, name);
109324 + break;
109325 + }
109326 +
109327 + nelt = TREE_INT_CST_LOW(array_size) / TREE_INT_CST_LOW(elt_size);
109328 +#if BUILDING_GCC_VERSION <= 4007
109329 + vals = VEC_alloc(constructor_elt, gc, nelt);
109330 +#else
109331 + vec_alloc(vals, nelt);
109332 +#endif
109333 +
109334 + mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(elt_type)) - 1);
109335 + mask = 2 * (mask - 1) + 1;
109336 +
109337 + for (i = 0; i < nelt; i++)
109338 + if (TYPE_UNSIGNED(elt_type))
109339 + CONSTRUCTOR_APPEND_ELT(vals, size_int(i), build_int_cstu(elt_type, mask & get_random_const()));
109340 + else
109341 + CONSTRUCTOR_APPEND_ELT(vals, size_int(i), build_int_cst(elt_type, mask & get_random_const()));
109342 +
109343 + DECL_INITIAL(*node) = build_constructor(type, vals);
109344 +//debug_tree(DECL_INITIAL(*node));
109345 + break;
109346 + }
109347 + }
109348 + break;
109349 +
109350 + case FUNCTION_DECL:
109351 + break;
109352 + }
109353 +
109354 + return NULL_TREE;
109355 +}
109356 +
109357 +static struct attribute_spec latent_entropy_attr = {
109358 + .name = "latent_entropy",
109359 + .min_length = 0,
109360 + .max_length = 0,
109361 + .decl_required = true,
109362 + .type_required = false,
109363 + .function_type_required = false,
109364 + .handler = handle_latent_entropy_attribute,
109365 +#if BUILDING_GCC_VERSION >= 4007
109366 + .affects_type_identity = false
109367 +#endif
109368 +};
109369 +
109370 +static void register_attributes(void *event_data, void *data)
109371 +{
109372 + register_attribute(&latent_entropy_attr);
109373 +}
109374 +
109375 +static bool gate_latent_entropy(void)
109376 +{
109377 + // don't bother with noreturn functions for now
109378 + if (TREE_THIS_VOLATILE(current_function_decl))
109379 + return false;
109380 +
109381 + return lookup_attribute("latent_entropy", DECL_ATTRIBUTES(current_function_decl)) != NULL_TREE;
109382 +}
109383 +
109384 +static enum tree_code get_op(tree *rhs)
109385 +{
109386 + static enum tree_code op;
109387 + unsigned HOST_WIDE_INT random_const;
109388 +
109389 + random_const = get_random_const();
109390 +
109391 + switch (op) {
109392 + case BIT_XOR_EXPR:
109393 + op = PLUS_EXPR;
109394 + break;
109395 +
109396 + case PLUS_EXPR:
109397 + if (rhs) {
109398 + op = LROTATE_EXPR;
109399 + random_const &= HOST_BITS_PER_WIDE_INT - 1;
109400 + break;
109401 + }
109402 +
109403 + case LROTATE_EXPR:
109404 + default:
109405 + op = BIT_XOR_EXPR;
109406 + break;
109407 + }
109408 + if (rhs)
109409 + *rhs = build_int_cstu(unsigned_intDI_type_node, random_const);
109410 + return op;
109411 +}
109412 +
109413 +static void perturb_local_entropy(basic_block bb, tree local_entropy)
109414 +{
109415 + gimple_stmt_iterator gsi;
109416 + gimple assign;
109417 + tree addxorrol, rhs;
109418 + enum tree_code op;
109419 +
109420 + op = get_op(&rhs);
109421 + addxorrol = fold_build2_loc(UNKNOWN_LOCATION, op, unsigned_intDI_type_node, local_entropy, rhs);
109422 + assign = gimple_build_assign(local_entropy, addxorrol);
109423 + gsi = gsi_after_labels(bb);
109424 + gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
109425 + update_stmt(assign);
109426 +//debug_bb(bb);
109427 +}
109428 +
109429 +static void perturb_latent_entropy(basic_block bb, tree rhs)
109430 +{
109431 + gimple_stmt_iterator gsi;
109432 + gimple assign;
109433 + tree addxorrol, temp;
109434 +
109435 + // 1. create temporary copy of latent_entropy
109436 + temp = create_tmp_var(unsigned_intDI_type_node, "temp_latent_entropy");
109437 + add_referenced_var(temp);
109438 +
109439 + // 2. read...
109440 + temp = make_ssa_name(temp, NULL);
109441 + assign = gimple_build_assign(temp, latent_entropy_decl);
109442 + SSA_NAME_DEF_STMT(temp) = assign;
109443 + add_referenced_var(latent_entropy_decl);
109444 + gsi = gsi_after_labels(bb);
109445 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
109446 + update_stmt(assign);
109447 +
109448 + // 3. ...modify...
109449 + addxorrol = fold_build2_loc(UNKNOWN_LOCATION, get_op(NULL), unsigned_intDI_type_node, temp, rhs);
109450 + temp = make_ssa_name(SSA_NAME_VAR(temp), NULL);
109451 + assign = gimple_build_assign(temp, addxorrol);
109452 + SSA_NAME_DEF_STMT(temp) = assign;
109453 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
109454 + update_stmt(assign);
109455 +
109456 + // 4. ...write latent_entropy
109457 + assign = gimple_build_assign(latent_entropy_decl, temp);
109458 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
109459 + update_stmt(assign);
109460 +}
109461 +
109462 +static unsigned int execute_latent_entropy(void)
109463 +{
109464 + basic_block bb;
109465 + gimple assign;
109466 + gimple_stmt_iterator gsi;
109467 + tree local_entropy;
109468 +
109469 + if (!latent_entropy_decl) {
109470 +#if BUILDING_GCC_VERSION >= 4009
109471 + varpool_node *node;
109472 +#else
109473 + struct varpool_node *node;
109474 +#endif
109475 +
109476 + FOR_EACH_VARIABLE(node) {
109477 + tree var = NODE_DECL(node);
109478 +
109479 + if (strcmp(IDENTIFIER_POINTER(DECL_NAME(var)), "latent_entropy"))
109480 + continue;
109481 + latent_entropy_decl = var;
109482 +// debug_tree(var);
109483 + break;
109484 + }
109485 + if (!latent_entropy_decl) {
109486 +// debug_tree(current_function_decl);
109487 + return 0;
109488 + }
109489 + }
109490 +
109491 +//fprintf(stderr, "latent_entropy: %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
109492 +
109493 + // 1. create local entropy variable
109494 + local_entropy = create_tmp_var(unsigned_intDI_type_node, "local_entropy");
109495 + add_referenced_var(local_entropy);
109496 + mark_sym_for_renaming(local_entropy);
109497 +
109498 + // 2. initialize local entropy variable
109499 + bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
109500 + if (dom_info_available_p(CDI_DOMINATORS))
109501 + set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
109502 + gsi = gsi_start_bb(bb);
109503 +
109504 + assign = gimple_build_assign(local_entropy, build_int_cstu(unsigned_intDI_type_node, get_random_const()));
109505 +// gimple_set_location(assign, loc);
109506 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
109507 + update_stmt(assign);
109508 +//debug_bb(bb);
109509 + gcc_assert(single_succ_p(bb));
109510 + bb = single_succ(bb);
109511 +
109512 + // 3. instrument each BB with an operation on the local entropy variable
109513 + while (bb != EXIT_BLOCK_PTR_FOR_FN(cfun)) {
109514 + perturb_local_entropy(bb, local_entropy);
109515 +//debug_bb(bb);
109516 + bb = bb->next_bb;
109517 + };
109518 +
109519 + // 4. mix local entropy into the global entropy variable
109520 + gcc_assert(single_pred_p(EXIT_BLOCK_PTR_FOR_FN(cfun)));
109521 + perturb_latent_entropy(single_pred(EXIT_BLOCK_PTR_FOR_FN(cfun)), local_entropy);
109522 +//debug_bb(single_pred(EXIT_BLOCK_PTR_FOR_FN(cfun)));
109523 + return 0;
109524 +}
109525 +
109526 +static void latent_entropy_start_unit(void *gcc_data, void *user_data)
109527 +{
109528 + tree latent_entropy_type;
109529 +
109530 + seed = get_random_seed(false);
109531 +
109532 + if (in_lto_p)
109533 + return;
109534 +
109535 + // extern volatile u64 latent_entropy
109536 + gcc_assert(TYPE_PRECISION(long_long_unsigned_type_node) == 64);
109537 + latent_entropy_type = build_qualified_type(long_long_unsigned_type_node, TYPE_QUALS(long_long_unsigned_type_node) | TYPE_QUAL_VOLATILE);
109538 + latent_entropy_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier("latent_entropy"), latent_entropy_type);
109539 +
109540 + TREE_STATIC(latent_entropy_decl) = 1;
109541 + TREE_PUBLIC(latent_entropy_decl) = 1;
109542 + TREE_USED(latent_entropy_decl) = 1;
109543 + TREE_THIS_VOLATILE(latent_entropy_decl) = 1;
109544 + DECL_EXTERNAL(latent_entropy_decl) = 1;
109545 + DECL_ARTIFICIAL(latent_entropy_decl) = 1;
109546 + lang_hooks.decls.pushdecl(latent_entropy_decl);
109547 +// DECL_ASSEMBLER_NAME(latent_entropy_decl);
109548 +// varpool_finalize_decl(latent_entropy_decl);
109549 +// varpool_mark_needed_node(latent_entropy_decl);
109550 +}
109551 +
109552 +#if BUILDING_GCC_VERSION >= 4009
109553 +static const struct pass_data latent_entropy_pass_data = {
109554 +#else
109555 +static struct gimple_opt_pass latent_entropy_pass = {
109556 + .pass = {
109557 +#endif
109558 + .type = GIMPLE_PASS,
109559 + .name = "latent_entropy",
109560 +#if BUILDING_GCC_VERSION >= 4008
109561 + .optinfo_flags = OPTGROUP_NONE,
109562 +#endif
109563 +#if BUILDING_GCC_VERSION >= 4009
109564 + .has_gate = true,
109565 + .has_execute = true,
109566 +#else
109567 + .gate = gate_latent_entropy,
109568 + .execute = execute_latent_entropy,
109569 + .sub = NULL,
109570 + .next = NULL,
109571 + .static_pass_number = 0,
109572 +#endif
109573 + .tv_id = TV_NONE,
109574 + .properties_required = PROP_gimple_leh | PROP_cfg,
109575 + .properties_provided = 0,
109576 + .properties_destroyed = 0,
109577 + .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
109578 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
109579 +#if BUILDING_GCC_VERSION < 4009
109580 + }
109581 +#endif
109582 +};
109583 +
109584 +#if BUILDING_GCC_VERSION >= 4009
109585 +namespace {
109586 +class latent_entropy_pass : public gimple_opt_pass {
109587 +public:
109588 + latent_entropy_pass() : gimple_opt_pass(latent_entropy_pass_data, g) {}
109589 + bool gate() { return gate_latent_entropy(); }
109590 + unsigned int execute() { return execute_latent_entropy(); }
109591 +};
109592 +}
109593 +
109594 +static opt_pass *make_latent_entropy_pass(void)
109595 +{
109596 + return new latent_entropy_pass();
109597 +}
109598 +#else
109599 +static struct opt_pass *make_latent_entropy_pass(void)
109600 +{
109601 + return &latent_entropy_pass.pass;
109602 +}
109603 +#endif
109604 +
109605 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
109606 +{
109607 + const char * const plugin_name = plugin_info->base_name;
109608 + struct register_pass_info latent_entropy_pass_info;
109609 +
109610 + latent_entropy_pass_info.pass = make_latent_entropy_pass();
109611 + latent_entropy_pass_info.reference_pass_name = "optimized";
109612 + latent_entropy_pass_info.ref_pass_instance_number = 1;
109613 + latent_entropy_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
109614 + static const struct ggc_root_tab gt_ggc_r_gt_latent_entropy[] = {
109615 + {
109616 + .base = &latent_entropy_decl,
109617 + .nelt = 1,
109618 + .stride = sizeof(latent_entropy_decl),
109619 + .cb = &gt_ggc_mx_tree_node,
109620 + .pchw = &gt_pch_nx_tree_node
109621 + },
109622 + LAST_GGC_ROOT_TAB
109623 + };
109624 +
109625 + if (!plugin_default_version_check(version, &gcc_version)) {
109626 + error(G_("incompatible gcc/plugin versions"));
109627 + return 1;
109628 + }
109629 +
109630 + register_callback(plugin_name, PLUGIN_INFO, NULL, &latent_entropy_plugin_info);
109631 + register_callback(plugin_name, PLUGIN_START_UNIT, &latent_entropy_start_unit, NULL);
109632 + if (!in_lto_p)
109633 + register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_latent_entropy);
109634 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &latent_entropy_pass_info);
109635 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
109636 +
109637 + return 0;
109638 +}
109639 diff --git a/tools/gcc/randomize_layout_plugin.c b/tools/gcc/randomize_layout_plugin.c
109640 new file mode 100644
109641 index 0000000..8dafb22
109642 --- /dev/null
109643 +++ b/tools/gcc/randomize_layout_plugin.c
109644 @@ -0,0 +1,910 @@
109645 +/*
109646 + * Copyright 2014 by Open Source Security, Inc., Brad Spengler <spender@grsecurity.net>
109647 + * and PaX Team <pageexec@freemail.hu>
109648 + * Licensed under the GPL v2
109649 + *
109650 + * Usage:
109651 + * $ # for 4.5/4.6/C based 4.7
109652 + * $ gcc -I`gcc -print-file-name=plugin`/include -I`gcc -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o randomize_layout_plugin.so randomize_layout_plugin.c
109653 + * $ # for C++ based 4.7/4.8+
109654 + * $ g++ -I`g++ -print-file-name=plugin`/include -I`g++ -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o randomize_layout_plugin.so randomize_layout_plugin.c
109655 + * $ gcc -fplugin=./randomize_layout_plugin.so test.c -O2
109656 + */
109657 +
109658 +#include "gcc-common.h"
109659 +#include "randomize_layout_seed.h"
109660 +
109661 +#if BUILDING_GCC_MAJOR < 4 || BUILDING_GCC_MINOR < 6 || (BUILDING_GCC_MINOR == 6 && BUILDING_GCC_PATCHLEVEL < 4)
109662 +#error "The RANDSTRUCT plugin requires GCC 4.6.4 or newer."
109663 +#endif
109664 +
109665 +#define ORIG_TYPE_NAME(node) \
109666 + (TYPE_NAME(TYPE_MAIN_VARIANT(node)) != NULL_TREE ? ((const unsigned char *)IDENTIFIER_POINTER(TYPE_NAME(TYPE_MAIN_VARIANT(node)))) : (const unsigned char *)"anonymous")
109667 +
109668 +int plugin_is_GPL_compatible;
109669 +
109670 +static int performance_mode;
109671 +
109672 +static struct plugin_info randomize_layout_plugin_info = {
109673 + .version = "201402201816",
109674 + .help = "disable\t\t\tdo not activate plugin\n"
109675 + "performance-mode\tenable cacheline-aware layout randomization\n"
109676 +};
109677 +
109678 +/* from old Linux dcache.h */
109679 +static inline unsigned long
109680 +partial_name_hash(unsigned long c, unsigned long prevhash)
109681 +{
109682 + return (prevhash + (c << 4) + (c >> 4)) * 11;
109683 +}
109684 +static inline unsigned int
109685 +name_hash(const unsigned char *name)
109686 +{
109687 + unsigned long hash = 0;
109688 + unsigned int len = strlen((const char *)name);
109689 + while (len--)
109690 + hash = partial_name_hash(*name++, hash);
109691 + return (unsigned int)hash;
109692 +}
109693 +
109694 +static tree handle_randomize_layout_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
109695 +{
109696 + tree type;
109697 +
109698 + *no_add_attrs = true;
109699 + if (TREE_CODE(*node) == FUNCTION_DECL) {
109700 + error("%qE attribute does not apply to functions (%qF)", name, *node);
109701 + return NULL_TREE;
109702 + }
109703 +
109704 + if (TREE_CODE(*node) == PARM_DECL) {
109705 + error("%qE attribute does not apply to function parameters (%qD)", name, *node);
109706 + return NULL_TREE;
109707 + }
109708 +
109709 + if (TREE_CODE(*node) == VAR_DECL) {
109710 + error("%qE attribute does not apply to variables (%qD)", name, *node);
109711 + return NULL_TREE;
109712 + }
109713 +
109714 + if (TYPE_P(*node)) {
109715 + type = *node;
109716 + } else {
109717 + gcc_assert(TREE_CODE(*node) == TYPE_DECL);
109718 + type = TREE_TYPE(*node);
109719 + }
109720 +
109721 + if (TREE_CODE(type) != RECORD_TYPE) {
109722 + error("%qE attribute used on %qT applies to struct types only", name, type);
109723 + return NULL_TREE;
109724 + }
109725 +
109726 + if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
109727 + error("%qE attribute is already applied to the type %qT", name, type);
109728 + return NULL_TREE;
109729 + }
109730 +
109731 + *no_add_attrs = false;
109732 +
109733 + return NULL_TREE;
109734 +}
109735 +
109736 +/* set on complete types that we don't need to inspect further at all */
109737 +static tree handle_randomize_considered_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
109738 +{
109739 + *no_add_attrs = false;
109740 + return NULL_TREE;
109741 +}
109742 +
109743 +/*
109744 + * set on types that we've performed a shuffle on, to prevent re-shuffling
109745 + * this does not preclude us from inspecting its fields for potential shuffles
109746 + */
109747 +static tree handle_randomize_performed_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
109748 +{
109749 + *no_add_attrs = false;
109750 + return NULL_TREE;
109751 +}
109752 +
109753 +/*
109754 + * 64bit variant of Bob Jenkins' public domain PRNG
109755 + * 256 bits of internal state
109756 + */
109757 +
109758 +typedef unsigned long long u64;
109759 +
109760 +typedef struct ranctx { u64 a; u64 b; u64 c; u64 d; } ranctx;
109761 +
109762 +#define rot(x,k) (((x)<<(k))|((x)>>(64-(k))))
109763 +static u64 ranval(ranctx *x) {
109764 + u64 e = x->a - rot(x->b, 7);
109765 + x->a = x->b ^ rot(x->c, 13);
109766 + x->b = x->c + rot(x->d, 37);
109767 + x->c = x->d + e;
109768 + x->d = e + x->a;
109769 + return x->d;
109770 +}
109771 +
109772 +static void raninit(ranctx *x, u64 *seed) {
109773 + int i;
109774 +
109775 + x->a = seed[0];
109776 + x->b = seed[1];
109777 + x->c = seed[2];
109778 + x->d = seed[3];
109779 +
109780 + for (i=0; i < 30; ++i)
109781 + (void)ranval(x);
109782 +}
109783 +
109784 +static u64 shuffle_seed[4];
109785 +
109786 +struct partition_group {
109787 + tree tree_start;
109788 + unsigned long start;
109789 + unsigned long length;
109790 +};
109791 +
109792 +static void partition_struct(tree *fields, unsigned long length, struct partition_group *size_groups, unsigned long *num_groups)
109793 +{
109794 + unsigned long i;
109795 + unsigned long accum_size = 0;
109796 + unsigned long accum_length = 0;
109797 + unsigned long group_idx = 0;
109798 +
109799 + gcc_assert(length < INT_MAX);
109800 +
109801 + memset(size_groups, 0, sizeof(struct partition_group) * length);
109802 +
109803 + for (i = 0; i < length; i++) {
109804 + if (size_groups[group_idx].tree_start == NULL_TREE) {
109805 + size_groups[group_idx].tree_start = fields[i];
109806 + size_groups[group_idx].start = i;
109807 + accum_length = 0;
109808 + accum_size = 0;
109809 + }
109810 + accum_size += (unsigned long)int_size_in_bytes(TREE_TYPE(fields[i]));
109811 + accum_length++;
109812 + if (accum_size >= 64) {
109813 + size_groups[group_idx].length = accum_length;
109814 + accum_length = 0;
109815 + group_idx++;
109816 + }
109817 + }
109818 +
109819 + if (size_groups[group_idx].tree_start != NULL_TREE &&
109820 + !size_groups[group_idx].length) {
109821 + size_groups[group_idx].length = accum_length;
109822 + group_idx++;
109823 + }
109824 +
109825 + *num_groups = group_idx;
109826 +}
109827 +
109828 +static void performance_shuffle(tree *newtree, unsigned long length, ranctx *prng_state)
109829 +{
109830 + unsigned long i, x;
109831 + struct partition_group size_group[length];
109832 + unsigned long num_groups = 0;
109833 + unsigned long randnum;
109834 +
109835 + partition_struct(newtree, length, (struct partition_group *)&size_group, &num_groups);
109836 + for (i = num_groups - 1; i > 0; i--) {
109837 + struct partition_group tmp;
109838 + randnum = ranval(prng_state) % (i + 1);
109839 + tmp = size_group[i];
109840 + size_group[i] = size_group[randnum];
109841 + size_group[randnum] = tmp;
109842 + }
109843 +
109844 + for (x = 0; x < num_groups; x++) {
109845 + for (i = size_group[x].start + size_group[x].length - 1; i > size_group[x].start; i--) {
109846 + tree tmp;
109847 + if (DECL_BIT_FIELD_TYPE(newtree[i]))
109848 + continue;
109849 + randnum = ranval(prng_state) % (i + 1);
109850 + // we could handle this case differently if desired
109851 + if (DECL_BIT_FIELD_TYPE(newtree[randnum]))
109852 + continue;
109853 + tmp = newtree[i];
109854 + newtree[i] = newtree[randnum];
109855 + newtree[randnum] = tmp;
109856 + }
109857 + }
109858 +}
109859 +
109860 +static void full_shuffle(tree *newtree, unsigned long length, ranctx *prng_state)
109861 +{
109862 + unsigned long i, randnum;
109863 +
109864 + for (i = length - 1; i > 0; i--) {
109865 + tree tmp;
109866 + randnum = ranval(prng_state) % (i + 1);
109867 + tmp = newtree[i];
109868 + newtree[i] = newtree[randnum];
109869 + newtree[randnum] = tmp;
109870 + }
109871 +}
109872 +
109873 +/* modern in-place Fisher-Yates shuffle */
109874 +static void shuffle(const_tree type, tree *newtree, unsigned long length)
109875 +{
109876 + unsigned long i;
109877 + u64 seed[4];
109878 + ranctx prng_state;
109879 + const unsigned char *structname;
109880 +
109881 + if (length == 0)
109882 + return;
109883 +
109884 + gcc_assert(TREE_CODE(type) == RECORD_TYPE);
109885 +
109886 + structname = ORIG_TYPE_NAME(type);
109887 +
109888 +#ifdef __DEBUG_PLUGIN
109889 + fprintf(stderr, "Shuffling struct %s %p\n", (const char *)structname, type);
109890 +#ifdef __DEBUG_VERBOSE
109891 + debug_tree((tree)type);
109892 +#endif
109893 +#endif
109894 +
109895 + for (i = 0; i < 4; i++) {
109896 + seed[i] = shuffle_seed[i];
109897 + seed[i] ^= name_hash(structname);
109898 + }
109899 +
109900 + raninit(&prng_state, (u64 *)&seed);
109901 +
109902 + if (performance_mode)
109903 + performance_shuffle(newtree, length, &prng_state);
109904 + else
109905 + full_shuffle(newtree, length, &prng_state);
109906 +}
109907 +
109908 +static bool is_flexible_array(const_tree field)
109909 +{
109910 + const_tree fieldtype;
109911 + const_tree typesize;
109912 + const_tree elemtype;
109913 + const_tree elemsize;
109914 +
109915 + fieldtype = TREE_TYPE(field);
109916 + typesize = TYPE_SIZE(fieldtype);
109917 +
109918 + if (TREE_CODE(fieldtype) != ARRAY_TYPE)
109919 + return false;
109920 +
109921 + elemtype = TREE_TYPE(fieldtype);
109922 + elemsize = TYPE_SIZE(elemtype);
109923 +
109924 + /* size of type is represented in bits */
109925 +
109926 + if (typesize == NULL_TREE && TYPE_DOMAIN(fieldtype) != NULL_TREE &&
109927 + TYPE_MAX_VALUE(TYPE_DOMAIN(fieldtype)) == NULL_TREE)
109928 + return true;
109929 +
109930 + if (typesize != NULL_TREE &&
109931 + (TREE_CONSTANT(typesize) && (!TREE_INT_CST_LOW(typesize) ||
109932 + TREE_INT_CST_LOW(typesize) == TREE_INT_CST_LOW(elemsize))))
109933 + return true;
109934 +
109935 + return false;
109936 +}
109937 +
109938 +static int relayout_struct(tree type)
109939 +{
109940 + unsigned long num_fields = (unsigned long)list_length(TYPE_FIELDS(type));
109941 + unsigned long shuffle_length = num_fields;
109942 + tree field;
109943 + tree newtree[num_fields];
109944 + unsigned long i;
109945 + tree list;
109946 + tree variant;
109947 + expanded_location xloc;
109948 +
109949 + if (TYPE_FIELDS(type) == NULL_TREE)
109950 + return 0;
109951 +
109952 + if (num_fields < 2)
109953 + return 0;
109954 +
109955 + gcc_assert(TREE_CODE(type) == RECORD_TYPE);
109956 +
109957 + gcc_assert(num_fields < INT_MAX);
109958 +
109959 + if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(type)) ||
109960 + lookup_attribute("no_randomize_layout", TYPE_ATTRIBUTES(TYPE_MAIN_VARIANT(type))))
109961 + return 0;
109962 +
109963 + /* throw out any structs in uapi */
109964 + xloc = expand_location(DECL_SOURCE_LOCATION(TYPE_FIELDS(type)));
109965 +
109966 + if (strstr(xloc.file, "/uapi/"))
109967 + error(G_("attempted to randomize userland API struct %s"), ORIG_TYPE_NAME(type));
109968 +
109969 + for (field = TYPE_FIELDS(type), i = 0; field; field = TREE_CHAIN(field), i++) {
109970 + gcc_assert(TREE_CODE(field) == FIELD_DECL);
109971 + newtree[i] = field;
109972 + }
109973 +
109974 + /*
109975 + * enforce that we don't randomize the layout of the last
109976 + * element of a struct if it's a 0 or 1-length array
109977 + * or a proper flexible array
109978 + */
109979 + if (is_flexible_array(newtree[num_fields - 1]))
109980 + shuffle_length--;
109981 +
109982 + shuffle(type, (tree *)newtree, shuffle_length);
109983 +
109984 + /*
109985 + * set up a bogus anonymous struct field designed to error out on unnamed struct initializers
109986 + * as gcc provides no other way to detect such code
109987 + */
109988 + list = make_node(FIELD_DECL);
109989 + TREE_CHAIN(list) = newtree[0];
109990 + TREE_TYPE(list) = void_type_node;
109991 + DECL_SIZE(list) = bitsize_zero_node;
109992 + DECL_NONADDRESSABLE_P(list) = 1;
109993 + DECL_FIELD_BIT_OFFSET(list) = bitsize_zero_node;
109994 + DECL_SIZE_UNIT(list) = size_zero_node;
109995 + DECL_FIELD_OFFSET(list) = size_zero_node;
109996 + // to satisfy the constify plugin
109997 + TREE_READONLY(list) = 1;
109998 +
109999 + for (i = 0; i < num_fields - 1; i++)
110000 + TREE_CHAIN(newtree[i]) = newtree[i+1];
110001 + TREE_CHAIN(newtree[num_fields - 1]) = NULL_TREE;
110002 +
110003 + for (variant = TYPE_MAIN_VARIANT(type); variant; variant = TYPE_NEXT_VARIANT(variant)) {
110004 + TYPE_FIELDS(variant) = list;
110005 + TYPE_ATTRIBUTES(variant) = copy_list(TYPE_ATTRIBUTES(variant));
110006 + TYPE_ATTRIBUTES(variant) = tree_cons(get_identifier("randomize_performed"), NULL_TREE, TYPE_ATTRIBUTES(variant));
110007 + // force a re-layout
110008 + TYPE_SIZE(variant) = NULL_TREE;
110009 + layout_type(variant);
110010 + }
110011 +
110012 + return 1;
110013 +}
110014 +
110015 +/* from constify plugin */
110016 +static const_tree get_field_type(const_tree field)
110017 +{
110018 + return strip_array_types(TREE_TYPE(field));
110019 +}
110020 +
110021 +/* from constify plugin */
110022 +static bool is_fptr(const_tree fieldtype)
110023 +{
110024 + if (TREE_CODE(fieldtype) != POINTER_TYPE)
110025 + return false;
110026 +
110027 + return TREE_CODE(TREE_TYPE(fieldtype)) == FUNCTION_TYPE;
110028 +}
110029 +
110030 +/* derived from constify plugin */
110031 +static int is_pure_ops_struct(const_tree node)
110032 +{
110033 + const_tree field;
110034 +
110035 + gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
110036 +
110037 + for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
110038 + const_tree fieldtype = get_field_type(field);
110039 + enum tree_code code = TREE_CODE(fieldtype);
110040 +
110041 + if (node == fieldtype)
110042 + continue;
110043 +
110044 + if (!is_fptr(fieldtype))
110045 + return 0;
110046 +
110047 + if (code != RECORD_TYPE && code != UNION_TYPE)
110048 + continue;
110049 +
110050 + if (!is_pure_ops_struct(fieldtype))
110051 + return 0;
110052 + }
110053 +
110054 + return 1;
110055 +}
110056 +
110057 +static void randomize_type(tree type)
110058 +{
110059 + tree variant;
110060 +
110061 + gcc_assert(TREE_CODE(type) == RECORD_TYPE);
110062 +
110063 + if (lookup_attribute("randomize_considered", TYPE_ATTRIBUTES(type)))
110064 + return;
110065 +
110066 + if (lookup_attribute("randomize_layout", TYPE_ATTRIBUTES(TYPE_MAIN_VARIANT(type))) || is_pure_ops_struct(type))
110067 + relayout_struct(type);
110068 +
110069 + for (variant = TYPE_MAIN_VARIANT(type); variant; variant = TYPE_NEXT_VARIANT(variant)) {
110070 + TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
110071 + TYPE_ATTRIBUTES(type) = tree_cons(get_identifier("randomize_considered"), NULL_TREE, TYPE_ATTRIBUTES(type));
110072 + }
110073 +#ifdef __DEBUG_PLUGIN
110074 + fprintf(stderr, "Marking randomize_considered on struct %s\n", ORIG_TYPE_NAME(type));
110075 +#ifdef __DEBUG_VERBOSE
110076 + debug_tree(type);
110077 +#endif
110078 +#endif
110079 +}
110080 +
110081 +static void randomize_layout_finish_decl(void *event_data, void *data)
110082 +{
110083 + tree decl = (tree)event_data;
110084 + tree type;
110085 +
110086 + if (decl == NULL_TREE || decl == error_mark_node)
110087 + return;
110088 +
110089 + type = TREE_TYPE(decl);
110090 +
110091 + if (TREE_CODE(decl) != VAR_DECL)
110092 + return;
110093 +
110094 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
110095 + return;
110096 +
110097 + if (!lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(type)))
110098 + return;
110099 +
110100 + relayout_decl(decl);
110101 +}
110102 +
110103 +static void finish_type(void *event_data, void *data)
110104 +{
110105 + tree type = (tree)event_data;
110106 +
110107 + if (type == NULL_TREE || type == error_mark_node)
110108 + return;
110109 +
110110 + if (TREE_CODE(type) != RECORD_TYPE)
110111 + return;
110112 +
110113 + if (TYPE_FIELDS(type) == NULL_TREE)
110114 + return;
110115 +
110116 + if (lookup_attribute("randomize_considered", TYPE_ATTRIBUTES(type)))
110117 + return;
110118 +
110119 +#ifdef __DEBUG_PLUGIN
110120 + fprintf(stderr, "Calling randomize_type on %s\n", ORIG_TYPE_NAME(type));
110121 +#endif
110122 +#ifdef __DEBUG_VERBOSE
110123 + debug_tree(type);
110124 +#endif
110125 + randomize_type(type);
110126 +
110127 + return;
110128 +}
110129 +
110130 +static struct attribute_spec randomize_layout_attr = {
110131 + .name = "randomize_layout",
110132 + // related to args
110133 + .min_length = 0,
110134 + .max_length = 0,
110135 + .decl_required = false,
110136 + // need type declaration
110137 + .type_required = true,
110138 + .function_type_required = false,
110139 + .handler = handle_randomize_layout_attr,
110140 +#if BUILDING_GCC_VERSION >= 4007
110141 + .affects_type_identity = true
110142 +#endif
110143 +};
110144 +
110145 +static struct attribute_spec no_randomize_layout_attr = {
110146 + .name = "no_randomize_layout",
110147 + // related to args
110148 + .min_length = 0,
110149 + .max_length = 0,
110150 + .decl_required = false,
110151 + // need type declaration
110152 + .type_required = true,
110153 + .function_type_required = false,
110154 + .handler = handle_randomize_layout_attr,
110155 +#if BUILDING_GCC_VERSION >= 4007
110156 + .affects_type_identity = true
110157 +#endif
110158 +};
110159 +
110160 +static struct attribute_spec randomize_considered_attr = {
110161 + .name = "randomize_considered",
110162 + // related to args
110163 + .min_length = 0,
110164 + .max_length = 0,
110165 + .decl_required = false,
110166 + // need type declaration
110167 + .type_required = true,
110168 + .function_type_required = false,
110169 + .handler = handle_randomize_considered_attr,
110170 +#if BUILDING_GCC_VERSION >= 4007
110171 + .affects_type_identity = false
110172 +#endif
110173 +};
110174 +
110175 +static struct attribute_spec randomize_performed_attr = {
110176 + .name = "randomize_performed",
110177 + // related to args
110178 + .min_length = 0,
110179 + .max_length = 0,
110180 + .decl_required = false,
110181 + // need type declaration
110182 + .type_required = true,
110183 + .function_type_required = false,
110184 + .handler = handle_randomize_performed_attr,
110185 +#if BUILDING_GCC_VERSION >= 4007
110186 + .affects_type_identity = false
110187 +#endif
110188 +};
110189 +
110190 +static void register_attributes(void *event_data, void *data)
110191 +{
110192 + register_attribute(&randomize_layout_attr);
110193 + register_attribute(&no_randomize_layout_attr);
110194 + register_attribute(&randomize_considered_attr);
110195 + register_attribute(&randomize_performed_attr);
110196 +}
110197 +
110198 +static void check_bad_casts_in_constructor(tree var, tree init)
110199 +{
110200 + unsigned HOST_WIDE_INT idx;
110201 + tree field, val;
110202 + tree field_type, val_type;
110203 +
110204 + FOR_EACH_CONSTRUCTOR_ELT(CONSTRUCTOR_ELTS(init), idx, field, val) {
110205 + if (TREE_CODE(val) == CONSTRUCTOR) {
110206 + check_bad_casts_in_constructor(var, val);
110207 + continue;
110208 + }
110209 +
110210 + /* pipacs' plugin creates franken-arrays that differ from those produced by
110211 + normal code which all have valid 'field' trees. work around this */
110212 + if (field == NULL_TREE)
110213 + continue;
110214 + field_type = TREE_TYPE(field);
110215 + val_type = TREE_TYPE(val);
110216 +
110217 + if (TREE_CODE(field_type) != POINTER_TYPE || TREE_CODE(val_type) != POINTER_TYPE)
110218 + continue;
110219 +
110220 + if (field_type == val_type)
110221 + continue;
110222 +
110223 + field_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(field_type))));
110224 + val_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(val_type))));
110225 +
110226 + if (field_type == void_type_node)
110227 + continue;
110228 + if (field_type == val_type)
110229 + continue;
110230 + if (TREE_CODE(val_type) != RECORD_TYPE)
110231 + continue;
110232 +
110233 + if (!lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(val_type)))
110234 + continue;
110235 + inform(DECL_SOURCE_LOCATION(var), "found mismatched struct pointer types: %qT and %qT\n", TYPE_MAIN_VARIANT(field_type), TYPE_MAIN_VARIANT(val_type));
110236 + }
110237 +}
110238 +
110239 +/* derived from the constify plugin */
110240 +static void check_global_variables(void *event_data, void *data)
110241 +{
110242 + struct varpool_node *node;
110243 + tree init;
110244 +
110245 + FOR_EACH_VARIABLE(node) {
110246 + tree var = NODE_DECL(node);
110247 + init = DECL_INITIAL(var);
110248 + if (init == NULL_TREE)
110249 + continue;
110250 +
110251 + if (TREE_CODE(init) != CONSTRUCTOR)
110252 + continue;
110253 +
110254 + check_bad_casts_in_constructor(var, init);
110255 + }
110256 +}
110257 +
110258 +static bool dominated_by_is_err(const_tree rhs, basic_block bb)
110259 +{
110260 + basic_block dom;
110261 + gimple dom_stmt;
110262 + gimple call_stmt;
110263 + const_tree dom_lhs;
110264 + const_tree poss_is_err_cond;
110265 + const_tree poss_is_err_func;
110266 + const_tree is_err_arg;
110267 +
110268 + dom = get_immediate_dominator(CDI_DOMINATORS, bb);
110269 + if (!dom)
110270 + return false;
110271 +
110272 + dom_stmt = last_stmt(dom);
110273 + if (!dom_stmt)
110274 + return false;
110275 +
110276 + if (gimple_code(dom_stmt) != GIMPLE_COND)
110277 + return false;
110278 +
110279 + if (gimple_cond_code(dom_stmt) != NE_EXPR)
110280 + return false;
110281 +
110282 + if (!integer_zerop(gimple_cond_rhs(dom_stmt)))
110283 + return false;
110284 +
110285 + poss_is_err_cond = gimple_cond_lhs(dom_stmt);
110286 +
110287 + if (TREE_CODE(poss_is_err_cond) != SSA_NAME)
110288 + return false;
110289 +
110290 + call_stmt = SSA_NAME_DEF_STMT(poss_is_err_cond);
110291 +
110292 + if (gimple_code(call_stmt) != GIMPLE_CALL)
110293 + return false;
110294 +
110295 + dom_lhs = gimple_get_lhs(call_stmt);
110296 + poss_is_err_func = gimple_call_fndecl(call_stmt);
110297 + if (!poss_is_err_func)
110298 + return false;
110299 + if (dom_lhs != poss_is_err_cond)
110300 + return false;
110301 + if (strcmp(DECL_NAME_POINTER(poss_is_err_func), "IS_ERR"))
110302 + return false;
110303 +
110304 + is_err_arg = gimple_call_arg(call_stmt, 0);
110305 + if (!is_err_arg)
110306 + return false;
110307 +
110308 + if (is_err_arg != rhs)
110309 + return false;
110310 +
110311 + return true;
110312 +}
110313 +
110314 +static void handle_local_var_initializers(void)
110315 +{
110316 + tree var;
110317 + unsigned int i;
110318 +
110319 + FOR_EACH_LOCAL_DECL(cfun, i, var) {
110320 + tree init = DECL_INITIAL(var);
110321 + if (!init)
110322 + continue;
110323 + if (TREE_CODE(init) != CONSTRUCTOR)
110324 + continue;
110325 + check_bad_casts_in_constructor(var, init);
110326 + }
110327 +}
110328 +
110329 +/*
110330 + * iterate over all statements to find "bad" casts:
110331 + * those where the address of the start of a structure is cast
110332 + * to a pointer of a structure of a different type, or a
110333 + * structure pointer type is cast to a different structure pointer type
110334 + */
110335 +static unsigned int find_bad_casts(void)
110336 +{
110337 + basic_block bb;
110338 +
110339 + handle_local_var_initializers();
110340 +
110341 + FOR_ALL_BB_FN(bb, cfun) {
110342 + gimple_stmt_iterator gsi;
110343 +
110344 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
110345 + gimple stmt;
110346 + const_tree lhs;
110347 + const_tree lhs_type;
110348 + const_tree rhs1;
110349 + const_tree rhs_type;
110350 + const_tree ptr_lhs_type;
110351 + const_tree ptr_rhs_type;
110352 + const_tree op0;
110353 + const_tree op0_type;
110354 + enum tree_code rhs_code;
110355 +
110356 + stmt = gsi_stmt(gsi);
110357 +
110358 +#ifdef __DEBUG_PLUGIN
110359 +#ifdef __DEBUG_VERBOSE
110360 + debug_gimple_stmt(stmt);
110361 + debug_tree(gimple_get_lhs(stmt));
110362 +#endif
110363 +#endif
110364 +
110365 + if (gimple_code(stmt) != GIMPLE_ASSIGN)
110366 + continue;
110367 +
110368 +#ifdef __DEBUG_PLUGIN
110369 +#ifdef __DEBUG_VERBOSE
110370 + debug_tree(gimple_assign_rhs1(stmt));
110371 +#endif
110372 +#endif
110373 +
110374 + rhs_code = gimple_assign_rhs_code(stmt);
110375 +
110376 + if (rhs_code != ADDR_EXPR && rhs_code != SSA_NAME)
110377 + continue;
110378 +
110379 + lhs = gimple_get_lhs(stmt);
110380 + lhs_type = TREE_TYPE(lhs);
110381 + rhs1 = gimple_assign_rhs1(stmt);
110382 + rhs_type = TREE_TYPE(rhs1);
110383 +
110384 + if (TREE_CODE(rhs_type) != POINTER_TYPE ||
110385 + TREE_CODE(lhs_type) != POINTER_TYPE)
110386 + continue;
110387 +
110388 + ptr_lhs_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(lhs_type))));
110389 + ptr_rhs_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(rhs_type))));
110390 +
110391 + if (ptr_rhs_type == void_type_node)
110392 + continue;
110393 +
110394 + if (ptr_lhs_type == void_type_node)
110395 + continue;
110396 +
110397 + if (dominated_by_is_err(rhs1, bb))
110398 + continue;
110399 +
110400 + if (TREE_CODE(ptr_rhs_type) != RECORD_TYPE) {
110401 +#ifndef __DEBUG_PLUGIN
110402 + if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_lhs_type)))
110403 +#endif
110404 + inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, ptr_rhs_type);
110405 + continue;
110406 + }
110407 +
110408 + if (rhs_code == SSA_NAME && ptr_lhs_type == ptr_rhs_type)
110409 + continue;
110410 +
110411 + if (rhs_code == ADDR_EXPR) {
110412 + op0 = TREE_OPERAND(rhs1, 0);
110413 +
110414 + if (op0 == NULL_TREE)
110415 + continue;
110416 +
110417 + if (TREE_CODE(op0) != VAR_DECL)
110418 + continue;
110419 +
110420 + op0_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(op0))));
110421 + if (op0_type == ptr_lhs_type)
110422 + continue;
110423 +
110424 +#ifndef __DEBUG_PLUGIN
110425 + if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(op0_type)))
110426 +#endif
110427 + inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, op0_type);
110428 + } else {
110429 + const_tree ssa_name_var = SSA_NAME_VAR(rhs1);
110430 + /* skip bogus type casts introduced by container_of */
110431 + if (ssa_name_var != NULL_TREE && DECL_NAME(ssa_name_var) &&
110432 + !strcmp((const char *)DECL_NAME_POINTER(ssa_name_var), "__mptr"))
110433 + continue;
110434 +#ifndef __DEBUG_PLUGIN
110435 + if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_rhs_type)))
110436 +#endif
110437 + inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, ptr_rhs_type);
110438 + }
110439 +
110440 + }
110441 + }
110442 + return 0;
110443 +}
110444 +
110445 +#if BUILDING_GCC_VERSION >= 4009
110446 +static const struct pass_data randomize_layout_bad_cast_data = {
110447 +#else
110448 +static struct gimple_opt_pass randomize_layout_bad_cast = {
110449 + .pass = {
110450 +#endif
110451 + .type = GIMPLE_PASS,
110452 + .name = "randomize_layout_bad_cast",
110453 +#if BUILDING_GCC_VERSION >= 4008
110454 + .optinfo_flags = OPTGROUP_NONE,
110455 +#endif
110456 +#if BUILDING_GCC_VERSION >= 4009
110457 + .has_gate = false,
110458 + .has_execute = true,
110459 +#else
110460 + .gate = NULL,
110461 + .execute = find_bad_casts,
110462 + .sub = NULL,
110463 + .next = NULL,
110464 + .static_pass_number = 0,
110465 +#endif
110466 + .tv_id = TV_NONE,
110467 + .properties_required = PROP_cfg,
110468 + .properties_provided = 0,
110469 + .properties_destroyed = 0,
110470 + .todo_flags_start = 0,
110471 + .todo_flags_finish = TODO_dump_func
110472 +#if BUILDING_GCC_VERSION < 4009
110473 + }
110474 +#endif
110475 +};
110476 +
110477 +#if BUILDING_GCC_VERSION >= 4009
110478 +namespace {
110479 +class randomize_layout_bad_cast : public gimple_opt_pass {
110480 +public:
110481 + randomize_layout_bad_cast() : gimple_opt_pass(randomize_layout_bad_cast_data, g) {}
110482 + unsigned int execute() { return find_bad_casts(); }
110483 +};
110484 +}
110485 +#endif
110486 +
110487 +static struct opt_pass *make_randomize_layout_bad_cast(void)
110488 +{
110489 +#if BUILDING_GCC_VERSION >= 4009
110490 + return new randomize_layout_bad_cast();
110491 +#else
110492 + return &randomize_layout_bad_cast.pass;
110493 +#endif
110494 +}
110495 +
110496 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
110497 +{
110498 + int i;
110499 + const char * const plugin_name = plugin_info->base_name;
110500 + const int argc = plugin_info->argc;
110501 + const struct plugin_argument * const argv = plugin_info->argv;
110502 + bool enable = true;
110503 + int obtained_seed = 0;
110504 + struct register_pass_info randomize_layout_bad_cast_info;
110505 +
110506 + randomize_layout_bad_cast_info.pass = make_randomize_layout_bad_cast();
110507 + randomize_layout_bad_cast_info.reference_pass_name = "ssa";
110508 + randomize_layout_bad_cast_info.ref_pass_instance_number = 1;
110509 + randomize_layout_bad_cast_info.pos_op = PASS_POS_INSERT_AFTER;
110510 +
110511 + if (!plugin_default_version_check(version, &gcc_version)) {
110512 + error(G_("incompatible gcc/plugin versions"));
110513 + return 1;
110514 + }
110515 +
110516 + if (strcmp(lang_hooks.name, "GNU C")) {
110517 + inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
110518 + enable = false;
110519 + }
110520 +
110521 + for (i = 0; i < argc; ++i) {
110522 + if (!strcmp(argv[i].key, "disable")) {
110523 + enable = false;
110524 + continue;
110525 + }
110526 + if (!strcmp(argv[i].key, "performance-mode")) {
110527 + performance_mode = 1;
110528 + continue;
110529 + }
110530 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
110531 + }
110532 +
110533 + if (strlen(randstruct_seed) != 64) {
110534 + error(G_("invalid seed value supplied for %s plugin"), plugin_name);
110535 + return 1;
110536 + }
110537 + obtained_seed = sscanf(randstruct_seed, "%016llx%016llx%016llx%016llx",
110538 + &shuffle_seed[0], &shuffle_seed[1], &shuffle_seed[2], &shuffle_seed[3]);
110539 + if (obtained_seed != 4) {
110540 + error(G_("Invalid seed supplied for %s plugin"), plugin_name);
110541 + return 1;
110542 + }
110543 +
110544 + register_callback(plugin_name, PLUGIN_INFO, NULL, &randomize_layout_plugin_info);
110545 + if (enable) {
110546 + register_callback(plugin_name, PLUGIN_ALL_IPA_PASSES_START, check_global_variables, NULL);
110547 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &randomize_layout_bad_cast_info);
110548 + register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
110549 + register_callback(plugin_name, PLUGIN_FINISH_DECL, randomize_layout_finish_decl, NULL);
110550 + }
110551 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
110552 +
110553 + return 0;
110554 +}
110555 diff --git a/tools/gcc/size_overflow_plugin/.gitignore b/tools/gcc/size_overflow_plugin/.gitignore
110556 new file mode 100644
110557 index 0000000..1f0214f
110558 --- /dev/null
110559 +++ b/tools/gcc/size_overflow_plugin/.gitignore
110560 @@ -0,0 +1,3 @@
110561 +randomize_layout_seed.h
110562 +size_overflow_hash.h
110563 +size_overflow_hash_aux.h
110564 diff --git a/tools/gcc/size_overflow_plugin/Makefile b/tools/gcc/size_overflow_plugin/Makefile
110565 new file mode 100644
110566 index 0000000..1ae2ed5
110567 --- /dev/null
110568 +++ b/tools/gcc/size_overflow_plugin/Makefile
110569 @@ -0,0 +1,20 @@
110570 +$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so
110571 +always := $($(HOSTLIBS)-y)
110572 +
110573 +size_overflow_plugin-objs := $(patsubst $(srctree)/$(src)/%.c,%.o,$(wildcard $(srctree)/$(src)/*.c))
110574 +
110575 +$(patsubst $(srctree)/$(src)/%.c,$(obj)/%.o,$(wildcard $(srctree)/$(src)/*.c)): $(objtree)/$(obj)/size_overflow_hash.h $(objtree)/$(obj)/size_overflow_hash_aux.h
110576 +
110577 +quiet_cmd_build_size_overflow_hash = GENHASH $@
110578 + cmd_build_size_overflow_hash = \
110579 + $(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -s size_overflow_hash -d $< -o $@
110580 +$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE
110581 + $(call if_changed,build_size_overflow_hash)
110582 +
110583 +quiet_cmd_build_size_overflow_hash_aux = GENHASH $@
110584 + cmd_build_size_overflow_hash_aux = \
110585 + $(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -s size_overflow_hash_aux -d $< -o $@
110586 +$(objtree)/$(obj)/size_overflow_hash_aux.h: $(src)/size_overflow_hash_aux.data FORCE
110587 + $(call if_changed,build_size_overflow_hash_aux)
110588 +
110589 +targets += size_overflow_hash.h size_overflow_hash_aux.h
110590 diff --git a/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh b/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh
110591 new file mode 100644
110592 index 0000000..12b1e3b
110593 --- /dev/null
110594 +++ b/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh
110595 @@ -0,0 +1,102 @@
110596 +#!/bin/bash
110597 +
110598 +# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c).
110599 +
110600 +header1="size_overflow_hash.h"
110601 +database="size_overflow_hash.data"
110602 +n=65536
110603 +hashtable_name="size_overflow_hash"
110604 +
110605 +usage() {
110606 +cat <<EOF
110607 +usage: $0 options
110608 +OPTIONS:
110609 + -h|--help help
110610 + -o header file
110611 + -d database file
110612 + -n hash array size
110613 + -s name of the hash table
110614 +EOF
110615 + return 0
110616 +}
110617 +
110618 +while true
110619 +do
110620 + case "$1" in
110621 + -h|--help) usage && exit 0;;
110622 + -n) n=$2; shift 2;;
110623 + -o) header1="$2"; shift 2;;
110624 + -d) database="$2"; shift 2;;
110625 + -s) hashtable_name="$2"; shift 2;;
110626 + --) shift 1; break ;;
110627 + *) break ;;
110628 + esac
110629 +done
110630 +
110631 +create_defines() {
110632 + for i in `seq 0 31`
110633 + do
110634 + echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1"
110635 + done
110636 + echo >> "$header1"
110637 +}
110638 +
110639 +create_structs() {
110640 + rm -f "$header1"
110641 +
110642 + create_defines
110643 +
110644 + cat "$database" | while read data
110645 + do
110646 + data_array=($data)
110647 + struct_hash_name="${data_array[0]}"
110648 + funcn="${data_array[1]}"
110649 + params="${data_array[2]}"
110650 + next="${data_array[4]}"
110651 +
110652 + echo "const struct size_overflow_hash $struct_hash_name = {" >> "$header1"
110653 +
110654 + echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1"
110655 + echo -en "\t.param\t= " >> "$header1"
110656 + line=
110657 + for param_num in ${params//-/ };
110658 + do
110659 + line="${line}PARAM"$param_num"|"
110660 + done
110661 +
110662 + echo -e "${line%?},\n};\n" >> "$header1"
110663 + done
110664 +}
110665 +
110666 +create_headers() {
110667 + echo "const struct size_overflow_hash * const $hashtable_name[$n] = {" >> "$header1"
110668 +}
110669 +
110670 +create_array_elements() {
110671 + index=0
110672 + grep -v "nohasharray" $database | sort -n -k 4 | while read data
110673 + do
110674 + data_array=($data)
110675 + i="${data_array[3]}"
110676 + hash="${data_array[0]}"
110677 + while [[ $index -lt $i ]]
110678 + do
110679 + echo -e "\t["$index"]\t= NULL," >> "$header1"
110680 + index=$(($index + 1))
110681 + done
110682 + index=$(($index + 1))
110683 + echo -e "\t["$i"]\t= &"$hash"," >> "$header1"
110684 + done
110685 + echo '};' >> $header1
110686 +}
110687 +
110688 +size_overflow_plugin_dir=`dirname $header1`
110689 +if [ "$size_overflow_plugin_dir" != '.' ]; then
110690 + mkdir -p "$size_overflow_plugin_dir" 2> /dev/null
110691 +fi
110692 +
110693 +create_structs
110694 +create_headers
110695 +create_array_elements
110696 +
110697 +exit 0
110698 diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c
110699 new file mode 100644
110700 index 0000000..3e8148c
110701 --- /dev/null
110702 +++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c
110703 @@ -0,0 +1,790 @@
110704 +/*
110705 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
110706 + * Licensed under the GPL v2, or (at your option) v3
110707 + *
110708 + * Homepage:
110709 + * http://www.grsecurity.net/~ephox/overflow_plugin/
110710 + *
110711 + * Documentation:
110712 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
110713 + *
110714 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
110715 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
110716 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
110717 + *
110718 + * Usage:
110719 + * $ make
110720 + * $ make run
110721 + */
110722 +
110723 +#include "gcc-common.h"
110724 +#include "size_overflow.h"
110725 +
110726 +static void search_size_overflow_attribute(struct pointer_set_t *visited, tree lhs);
110727 +static enum mark search_intentional(struct pointer_set_t *visited, const_tree lhs);
110728 +
110729 +// data for the size_overflow asm stmt
110730 +struct asm_data {
110731 + gimple def_stmt;
110732 + tree input;
110733 + tree output;
110734 +};
110735 +
110736 +#if BUILDING_GCC_VERSION <= 4007
110737 +static VEC(tree, gc) *create_asm_io_list(tree string, tree io)
110738 +#else
110739 +static vec<tree, va_gc> *create_asm_io_list(tree string, tree io)
110740 +#endif
110741 +{
110742 + tree list;
110743 +#if BUILDING_GCC_VERSION <= 4007
110744 + VEC(tree, gc) *vec_list = NULL;
110745 +#else
110746 + vec<tree, va_gc> *vec_list = NULL;
110747 +#endif
110748 +
110749 + list = build_tree_list(NULL_TREE, string);
110750 + list = chainon(NULL_TREE, build_tree_list(list, io));
110751 +#if BUILDING_GCC_VERSION <= 4007
110752 + VEC_safe_push(tree, gc, vec_list, list);
110753 +#else
110754 + vec_safe_push(vec_list, list);
110755 +#endif
110756 + return vec_list;
110757 +}
110758 +
110759 +static void create_asm_stmt(const char *str, tree str_input, tree str_output, struct asm_data *asm_data)
110760 +{
110761 + gimple asm_stmt;
110762 + gimple_stmt_iterator gsi;
110763 +#if BUILDING_GCC_VERSION <= 4007
110764 + VEC(tree, gc) *input, *output = NULL;
110765 +#else
110766 + vec<tree, va_gc> *input, *output = NULL;
110767 +#endif
110768 +
110769 + input = create_asm_io_list(str_input, asm_data->input);
110770 +
110771 + if (asm_data->output)
110772 + output = create_asm_io_list(str_output, asm_data->output);
110773 +
110774 + asm_stmt = gimple_build_asm_vec(str, input, output, NULL, NULL);
110775 + gsi = gsi_for_stmt(asm_data->def_stmt);
110776 + gsi_insert_after(&gsi, asm_stmt, GSI_NEW_STMT);
110777 +
110778 + if (asm_data->output)
110779 + SSA_NAME_DEF_STMT(asm_data->output) = asm_stmt;
110780 +}
110781 +
110782 +static void replace_call_lhs(const struct asm_data *asm_data)
110783 +{
110784 + gimple_set_lhs(asm_data->def_stmt, asm_data->input);
110785 + update_stmt(asm_data->def_stmt);
110786 + SSA_NAME_DEF_STMT(asm_data->input) = asm_data->def_stmt;
110787 +}
110788 +
110789 +static enum mark search_intentional_phi(struct pointer_set_t *visited, const_tree result)
110790 +{
110791 + enum mark cur_fndecl_attr;
110792 + gimple phi = get_def_stmt(result);
110793 + unsigned int i, n = gimple_phi_num_args(phi);
110794 +
110795 + pointer_set_insert(visited, phi);
110796 + for (i = 0; i < n; i++) {
110797 + tree arg = gimple_phi_arg_def(phi, i);
110798 +
110799 + cur_fndecl_attr = search_intentional(visited, arg);
110800 + if (cur_fndecl_attr != MARK_NO)
110801 + return cur_fndecl_attr;
110802 + }
110803 + return MARK_NO;
110804 +}
110805 +
110806 +static enum mark search_intentional_binary(struct pointer_set_t *visited, const_tree lhs)
110807 +{
110808 + enum mark cur_fndecl_attr;
110809 + const_tree rhs1, rhs2;
110810 + gimple def_stmt = get_def_stmt(lhs);
110811 +
110812 + rhs1 = gimple_assign_rhs1(def_stmt);
110813 + rhs2 = gimple_assign_rhs2(def_stmt);
110814 +
110815 + cur_fndecl_attr = search_intentional(visited, rhs1);
110816 + if (cur_fndecl_attr != MARK_NO)
110817 + return cur_fndecl_attr;
110818 + return search_intentional(visited, rhs2);
110819 +}
110820 +
110821 +// Look up the intentional_overflow attribute on the caller and the callee functions.
110822 +static enum mark search_intentional(struct pointer_set_t *visited, const_tree lhs)
110823 +{
110824 + const_gimple def_stmt;
110825 +
110826 + if (TREE_CODE(lhs) != SSA_NAME)
110827 + return get_intentional_attr_type(lhs);
110828 +
110829 + def_stmt = get_def_stmt(lhs);
110830 + if (!def_stmt)
110831 + return MARK_NO;
110832 +
110833 + if (pointer_set_contains(visited, def_stmt))
110834 + return MARK_NO;
110835 +
110836 + switch (gimple_code(def_stmt)) {
110837 + case GIMPLE_NOP:
110838 + return search_intentional(visited, SSA_NAME_VAR(lhs));
110839 + case GIMPLE_ASM:
110840 + if (is_size_overflow_intentional_asm_turn_off(def_stmt))
110841 + return MARK_TURN_OFF;
110842 + return MARK_NO;
110843 + case GIMPLE_CALL:
110844 + return MARK_NO;
110845 + case GIMPLE_PHI:
110846 + return search_intentional_phi(visited, lhs);
110847 + case GIMPLE_ASSIGN:
110848 + switch (gimple_num_ops(def_stmt)) {
110849 + case 2:
110850 + return search_intentional(visited, gimple_assign_rhs1(def_stmt));
110851 + case 3:
110852 + return search_intentional_binary(visited, lhs);
110853 + }
110854 + case GIMPLE_RETURN:
110855 + return MARK_NO;
110856 + default:
110857 + debug_gimple_stmt((gimple)def_stmt);
110858 + error("%s: unknown gimple code", __func__);
110859 + gcc_unreachable();
110860 + }
110861 +}
110862 +
110863 +// Check the intentional_overflow attribute and create the asm comment string for the size_overflow asm stmt.
110864 +static enum mark check_intentional_attribute_gimple(const_tree arg, const_gimple stmt, unsigned int argnum)
110865 +{
110866 + const_tree fndecl;
110867 + struct pointer_set_t *visited;
110868 + enum mark cur_fndecl_attr, decl_attr = MARK_NO;
110869 +
110870 + fndecl = get_interesting_orig_fndecl(stmt, argnum);
110871 + if (is_end_intentional_intentional_attr(fndecl, argnum))
110872 + decl_attr = MARK_NOT_INTENTIONAL;
110873 + else if (is_yes_intentional_attr(fndecl, argnum))
110874 + decl_attr = MARK_YES;
110875 + else if (is_turn_off_intentional_attr(fndecl) || is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl))) {
110876 + return MARK_TURN_OFF;
110877 + }
110878 +
110879 + visited = pointer_set_create();
110880 + cur_fndecl_attr = search_intentional(visited, arg);
110881 + pointer_set_destroy(visited);
110882 +
110883 + switch (cur_fndecl_attr) {
110884 + case MARK_NO:
110885 + case MARK_TURN_OFF:
110886 + return cur_fndecl_attr;
110887 + default:
110888 + print_missing_intentional(decl_attr, cur_fndecl_attr, fndecl, argnum);
110889 + return MARK_YES;
110890 + }
110891 +}
110892 +
110893 +static void check_missing_size_overflow_attribute(tree var)
110894 +{
110895 + tree orig_fndecl;
110896 + unsigned int num;
110897 +
110898 + if (is_a_return_check(var))
110899 + orig_fndecl = DECL_ORIGIN(var);
110900 + else
110901 + orig_fndecl = DECL_ORIGIN(current_function_decl);
110902 +
110903 + num = get_function_num(var, orig_fndecl);
110904 + if (num == CANNOT_FIND_ARG)
110905 + return;
110906 +
110907 + is_missing_function(orig_fndecl, num);
110908 +}
110909 +
110910 +static void search_size_overflow_attribute_phi(struct pointer_set_t *visited, const_tree result)
110911 +{
110912 + gimple phi = get_def_stmt(result);
110913 + unsigned int i, n = gimple_phi_num_args(phi);
110914 +
110915 + pointer_set_insert(visited, phi);
110916 + for (i = 0; i < n; i++) {
110917 + tree arg = gimple_phi_arg_def(phi, i);
110918 +
110919 + search_size_overflow_attribute(visited, arg);
110920 + }
110921 +}
110922 +
110923 +static void search_size_overflow_attribute_binary(struct pointer_set_t *visited, const_tree lhs)
110924 +{
110925 + const_gimple def_stmt = get_def_stmt(lhs);
110926 + tree rhs1, rhs2;
110927 +
110928 + rhs1 = gimple_assign_rhs1(def_stmt);
110929 + rhs2 = gimple_assign_rhs2(def_stmt);
110930 +
110931 + search_size_overflow_attribute(visited, rhs1);
110932 + search_size_overflow_attribute(visited, rhs2);
110933 +}
110934 +
110935 +static void search_size_overflow_attribute(struct pointer_set_t *visited, tree lhs)
110936 +{
110937 + const_gimple def_stmt;
110938 +
110939 + if (TREE_CODE(lhs) == PARM_DECL) {
110940 + check_missing_size_overflow_attribute(lhs);
110941 + return;
110942 + }
110943 +
110944 + def_stmt = get_def_stmt(lhs);
110945 + if (!def_stmt)
110946 + return;
110947 +
110948 + if (pointer_set_insert(visited, def_stmt))
110949 + return;
110950 +
110951 + switch (gimple_code(def_stmt)) {
110952 + case GIMPLE_NOP:
110953 + return search_size_overflow_attribute(visited, SSA_NAME_VAR(lhs));
110954 + case GIMPLE_ASM:
110955 + return;
110956 + case GIMPLE_CALL: {
110957 + tree fndecl = gimple_call_fndecl(def_stmt);
110958 +
110959 + if (fndecl == NULL_TREE)
110960 + return;
110961 + check_missing_size_overflow_attribute(fndecl);
110962 + return;
110963 + }
110964 + case GIMPLE_PHI:
110965 + return search_size_overflow_attribute_phi(visited, lhs);
110966 + case GIMPLE_ASSIGN:
110967 + switch (gimple_num_ops(def_stmt)) {
110968 + case 2:
110969 + return search_size_overflow_attribute(visited, gimple_assign_rhs1(def_stmt));
110970 + case 3:
110971 + return search_size_overflow_attribute_binary(visited, lhs);
110972 + }
110973 + default:
110974 + debug_gimple_stmt((gimple)def_stmt);
110975 + error("%s: unknown gimple code", __func__);
110976 + gcc_unreachable();
110977 + }
110978 +}
110979 +
110980 +// Search missing entries in the hash table (invoked from the gimple pass)
110981 +static void search_missing_size_overflow_attribute_gimple(const_gimple stmt, unsigned int num)
110982 +{
110983 + tree fndecl = NULL_TREE;
110984 + tree lhs;
110985 + struct pointer_set_t *visited;
110986 +
110987 + if (is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl)))
110988 + return;
110989 +
110990 + if (num == 0) {
110991 + gcc_assert(gimple_code(stmt) == GIMPLE_RETURN);
110992 + lhs = gimple_return_retval(stmt);
110993 + } else {
110994 + gcc_assert(is_gimple_call(stmt));
110995 + lhs = gimple_call_arg(stmt, num - 1);
110996 + fndecl = gimple_call_fndecl(stmt);
110997 + }
110998 +
110999 + if (fndecl != NULL_TREE && is_turn_off_intentional_attr(DECL_ORIGIN(fndecl)))
111000 + return;
111001 +
111002 + visited = pointer_set_create();
111003 + search_size_overflow_attribute(visited, lhs);
111004 + pointer_set_destroy(visited);
111005 +}
111006 +
111007 +static void create_output_from_phi(gimple stmt, unsigned int argnum, struct asm_data *asm_data)
111008 +{
111009 + gimple_stmt_iterator gsi;
111010 + gimple assign;
111011 +
111012 + assign = gimple_build_assign(asm_data->input, asm_data->output);
111013 + gsi = gsi_for_stmt(stmt);
111014 + gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
111015 + asm_data->def_stmt = assign;
111016 +
111017 + asm_data->output = create_new_var(TREE_TYPE(asm_data->output));
111018 + asm_data->output = make_ssa_name(asm_data->output, stmt);
111019 + if (gimple_code(stmt) == GIMPLE_RETURN)
111020 + gimple_return_set_retval(stmt, asm_data->output);
111021 + else
111022 + gimple_call_set_arg(stmt, argnum - 1, asm_data->output);
111023 + update_stmt(stmt);
111024 +}
111025 +
111026 +static char *create_asm_comment(unsigned int argnum, const_gimple stmt , const char *mark_str)
111027 +{
111028 + const char *fn_name;
111029 + char *asm_comment;
111030 + unsigned int len;
111031 +
111032 + if (argnum == 0)
111033 + fn_name = DECL_NAME_POINTER(current_function_decl);
111034 + else
111035 + fn_name = DECL_NAME_POINTER(gimple_call_fndecl(stmt));
111036 +
111037 + len = asprintf(&asm_comment, "%s %s %u", mark_str, fn_name, argnum);
111038 + gcc_assert(len > 0);
111039 +
111040 + return asm_comment;
111041 +}
111042 +
111043 +static const char *convert_mark_to_str(enum mark mark)
111044 +{
111045 + switch (mark) {
111046 + case MARK_NO:
111047 + return OK_ASM_STR;
111048 + case MARK_YES:
111049 + case MARK_NOT_INTENTIONAL:
111050 + return YES_ASM_STR;
111051 + case MARK_TURN_OFF:
111052 + return TURN_OFF_ASM_STR;
111053 + }
111054 +
111055 + gcc_unreachable();
111056 +}
111057 +
111058 +/* Create the input of the size_overflow asm stmt.
111059 + * When the arg of the callee function is a parm_decl it creates this kind of size_overflow asm stmt:
111060 + * __asm__("# size_overflow MARK_YES" : : "rm" size_1(D));
111061 + * The input field in asm_data will be empty if there is no need for further size_overflow asm stmt insertion.
111062 + * otherwise create the input (for a phi stmt the output too) of the asm stmt.
111063 + */
111064 +static void create_asm_input(gimple stmt, unsigned int argnum, struct asm_data *asm_data)
111065 +{
111066 + if (!asm_data->def_stmt) {
111067 + asm_data->input = NULL_TREE;
111068 + return;
111069 + }
111070 +
111071 + asm_data->input = create_new_var(TREE_TYPE(asm_data->output));
111072 + asm_data->input = make_ssa_name(asm_data->input, asm_data->def_stmt);
111073 +
111074 + switch (gimple_code(asm_data->def_stmt)) {
111075 + case GIMPLE_ASSIGN:
111076 + case GIMPLE_CALL:
111077 + replace_call_lhs(asm_data);
111078 + break;
111079 + case GIMPLE_PHI:
111080 + create_output_from_phi(stmt, argnum, asm_data);
111081 + break;
111082 + case GIMPLE_NOP: {
111083 + enum mark mark;
111084 + const char *mark_str;
111085 + char *asm_comment;
111086 +
111087 + mark = check_intentional_attribute_gimple(asm_data->output, stmt, argnum);
111088 +
111089 + asm_data->input = asm_data->output;
111090 + asm_data->output = NULL;
111091 + asm_data->def_stmt = stmt;
111092 +
111093 + mark_str = convert_mark_to_str(mark);
111094 + asm_comment = create_asm_comment(argnum, stmt, mark_str);
111095 +
111096 + create_asm_stmt(asm_comment, build_string(3, "rm"), NULL, asm_data);
111097 + free(asm_comment);
111098 + asm_data->input = NULL_TREE;
111099 + break;
111100 + }
111101 + case GIMPLE_ASM:
111102 + if (is_size_overflow_asm(asm_data->def_stmt)) {
111103 + asm_data->input = NULL_TREE;
111104 + break;
111105 + }
111106 + default:
111107 + debug_gimple_stmt(asm_data->def_stmt);
111108 + gcc_unreachable();
111109 + }
111110 +}
111111 +
111112 +/* This is the gimple part of searching for a missing size_overflow attribute. If the intentional_overflow attribute type
111113 + * is of the right kind create the appropriate size_overflow asm stmts:
111114 + * __asm__("# size_overflow" : =rm" D.3344_8 : "0" cicus.4_16);
111115 + * __asm__("# size_overflow MARK_YES" : : "rm" size_1(D));
111116 + */
111117 +static void create_size_overflow_asm(gimple stmt, tree output_node, unsigned int argnum)
111118 +{
111119 + struct asm_data asm_data;
111120 + const char *mark_str;
111121 + char *asm_comment;
111122 + enum mark mark;
111123 +
111124 + if (is_gimple_constant(output_node))
111125 + return;
111126 +
111127 + asm_data.output = output_node;
111128 + mark = check_intentional_attribute_gimple(asm_data.output, stmt, argnum);
111129 + if (mark != MARK_TURN_OFF)
111130 + search_missing_size_overflow_attribute_gimple(stmt, argnum);
111131 +
111132 + asm_data.def_stmt = get_def_stmt(asm_data.output);
111133 + if (is_size_overflow_intentional_asm_turn_off(asm_data.def_stmt))
111134 + return;
111135 +
111136 + create_asm_input(stmt, argnum, &asm_data);
111137 + if (asm_data.input == NULL_TREE)
111138 + return;
111139 +
111140 + mark_str = convert_mark_to_str(mark);
111141 + asm_comment = create_asm_comment(argnum, stmt, mark_str);
111142 + create_asm_stmt(asm_comment, build_string(2, "0"), build_string(4, "=rm"), &asm_data);
111143 + free(asm_comment);
111144 +}
111145 +
111146 +// Insert an asm stmt with "MARK_TURN_OFF", "MARK_YES" or "MARK_NOT_INTENTIONAL".
111147 +static bool create_mark_asm(gimple stmt, enum mark mark)
111148 +{
111149 + struct asm_data asm_data;
111150 + const char *asm_str;
111151 +
111152 + switch (mark) {
111153 + case MARK_TURN_OFF:
111154 + asm_str = TURN_OFF_ASM_STR;
111155 + break;
111156 + case MARK_NOT_INTENTIONAL:
111157 + case MARK_YES:
111158 + asm_str = YES_ASM_STR;
111159 + break;
111160 + default:
111161 + gcc_unreachable();
111162 + }
111163 +
111164 + asm_data.def_stmt = stmt;
111165 + asm_data.output = gimple_call_lhs(stmt);
111166 +
111167 + if (asm_data.output == NULL_TREE) {
111168 + asm_data.input = gimple_call_arg(stmt, 0);
111169 + if (is_gimple_constant(asm_data.input))
111170 + return false;
111171 + asm_data.output = NULL;
111172 + create_asm_stmt(asm_str, build_string(3, "rm"), NULL, &asm_data);
111173 + return true;
111174 + }
111175 +
111176 + create_asm_input(stmt, 0, &asm_data);
111177 + gcc_assert(asm_data.input != NULL_TREE);
111178 +
111179 + create_asm_stmt(asm_str, build_string(2, "0"), build_string(4, "=rm"), &asm_data);
111180 + return true;
111181 +}
111182 +
111183 +static bool is_from_cast(const_tree node)
111184 +{
111185 + gimple def_stmt = get_def_stmt(node);
111186 +
111187 + if (!def_stmt)
111188 + return false;
111189 +
111190 + if (gimple_assign_cast_p(def_stmt))
111191 + return true;
111192 +
111193 + return false;
111194 +}
111195 +
111196 +// Skip duplication when there is a minus expr and the type of rhs1 or rhs2 is a pointer_type.
111197 +static bool skip_ptr_minus(gimple stmt)
111198 +{
111199 + const_tree rhs1, rhs2, ptr1_rhs, ptr2_rhs;
111200 +
111201 + if (gimple_assign_rhs_code(stmt) != MINUS_EXPR)
111202 + return false;
111203 +
111204 + rhs1 = gimple_assign_rhs1(stmt);
111205 + if (!is_from_cast(rhs1))
111206 + return false;
111207 +
111208 + rhs2 = gimple_assign_rhs2(stmt);
111209 + if (!is_from_cast(rhs2))
111210 + return false;
111211 +
111212 + ptr1_rhs = gimple_assign_rhs1(get_def_stmt(rhs1));
111213 + ptr2_rhs = gimple_assign_rhs1(get_def_stmt(rhs2));
111214 +
111215 + if (TREE_CODE(TREE_TYPE(ptr1_rhs)) != POINTER_TYPE && TREE_CODE(TREE_TYPE(ptr2_rhs)) != POINTER_TYPE)
111216 + return false;
111217 +
111218 + create_mark_asm(stmt, MARK_YES);
111219 + return true;
111220 +}
111221 +
111222 +static void walk_use_def_ptr(struct pointer_set_t *visited, const_tree lhs)
111223 +{
111224 + gimple def_stmt;
111225 +
111226 + def_stmt = get_def_stmt(lhs);
111227 + if (!def_stmt)
111228 + return;
111229 +
111230 + if (pointer_set_insert(visited, def_stmt))
111231 + return;
111232 +
111233 + switch (gimple_code(def_stmt)) {
111234 + case GIMPLE_NOP:
111235 + case GIMPLE_ASM:
111236 + case GIMPLE_CALL:
111237 + break;
111238 + case GIMPLE_PHI: {
111239 + unsigned int i, n = gimple_phi_num_args(def_stmt);
111240 +
111241 + pointer_set_insert(visited, def_stmt);
111242 +
111243 + for (i = 0; i < n; i++) {
111244 + tree arg = gimple_phi_arg_def(def_stmt, i);
111245 +
111246 + walk_use_def_ptr(visited, arg);
111247 + }
111248 + }
111249 + case GIMPLE_ASSIGN:
111250 + switch (gimple_num_ops(def_stmt)) {
111251 + case 2:
111252 + walk_use_def_ptr(visited, gimple_assign_rhs1(def_stmt));
111253 + return;
111254 + case 3:
111255 + if (skip_ptr_minus(def_stmt))
111256 + return;
111257 +
111258 + walk_use_def_ptr(visited, gimple_assign_rhs1(def_stmt));
111259 + walk_use_def_ptr(visited, gimple_assign_rhs2(def_stmt));
111260 + return;
111261 + default:
111262 + return;
111263 + }
111264 + default:
111265 + debug_gimple_stmt((gimple)def_stmt);
111266 + error("%s: unknown gimple code", __func__);
111267 + gcc_unreachable();
111268 + }
111269 +}
111270 +
111271 +// Look for a ptr - ptr expression (e.g., cpuset_common_file_read() s - page)
111272 +static void insert_mark_not_intentional_asm_at_ptr(const_tree arg)
111273 +{
111274 + struct pointer_set_t *visited;
111275 +
111276 + visited = pointer_set_create();
111277 + walk_use_def_ptr(visited, arg);
111278 + pointer_set_destroy(visited);
111279 +}
111280 +
111281 +// Determine the return value and insert the asm stmt to mark the return stmt.
111282 +static void insert_asm_ret(gimple stmt)
111283 +{
111284 + tree ret;
111285 +
111286 + ret = gimple_return_retval(stmt);
111287 + create_size_overflow_asm(stmt, ret, 0);
111288 +}
111289 +
111290 +// Determine the correct arg index and arg and insert the asm stmt to mark the stmt.
111291 +static void insert_asm_arg(gimple stmt, unsigned int orig_argnum)
111292 +{
111293 + tree arg;
111294 + unsigned int argnum;
111295 +
111296 + argnum = get_correct_arg_count(orig_argnum, gimple_call_fndecl(stmt));
111297 + gcc_assert(argnum != 0);
111298 + if (argnum == CANNOT_FIND_ARG)
111299 + return;
111300 +
111301 + arg = gimple_call_arg(stmt, argnum - 1);
111302 + gcc_assert(arg != NULL_TREE);
111303 +
111304 + // skip all ptr - ptr expressions
111305 + insert_mark_not_intentional_asm_at_ptr(arg);
111306 +
111307 + create_size_overflow_asm(stmt, arg, argnum);
111308 +}
111309 +
111310 +// If a function arg or the return value is marked by the size_overflow attribute then set its index in the array.
111311 +static void set_argnum_attribute(const_tree attr, bool *argnums)
111312 +{
111313 + unsigned int argnum;
111314 + tree attr_value;
111315 +
111316 + for (attr_value = TREE_VALUE(attr); attr_value; attr_value = TREE_CHAIN(attr_value)) {
111317 + argnum = TREE_INT_CST_LOW(TREE_VALUE(attr_value));
111318 + argnums[argnum] = true;
111319 + }
111320 +}
111321 +
111322 +// If a function arg or the return value is in the hash table then set its index in the array.
111323 +static void set_argnum_hash(tree fndecl, bool *argnums)
111324 +{
111325 + unsigned int num;
111326 + const struct size_overflow_hash *hash;
111327 +
111328 + hash = get_function_hash(DECL_ORIGIN(fndecl));
111329 + if (!hash)
111330 + return;
111331 +
111332 + for (num = 0; num <= MAX_PARAM; num++) {
111333 + if (!(hash->param & (1U << num)))
111334 + continue;
111335 +
111336 + argnums[num] = true;
111337 + }
111338 +}
111339 +
111340 +static bool is_all_the_argnums_empty(bool *argnums)
111341 +{
111342 + unsigned int i;
111343 +
111344 + for (i = 0; i <= MAX_PARAM; i++)
111345 + if (argnums[i])
111346 + return false;
111347 + return true;
111348 +}
111349 +
111350 +// Check whether the arguments or the return value of the function are in the hash table or are marked by the size_overflow attribute.
111351 +static void search_interesting_args(tree fndecl, bool *argnums)
111352 +{
111353 + const_tree attr;
111354 +
111355 + set_argnum_hash(fndecl, argnums);
111356 + if (!is_all_the_argnums_empty(argnums))
111357 + return;
111358 +
111359 + attr = lookup_attribute("size_overflow", DECL_ATTRIBUTES(fndecl));
111360 + if (attr && TREE_VALUE(attr))
111361 + set_argnum_attribute(attr, argnums);
111362 +}
111363 +
111364 +/*
111365 + * Look up the intentional_overflow attribute that turns off ipa based duplication
111366 + * on the callee function.
111367 + */
111368 +static bool is_mark_turn_off_attribute(gimple stmt)
111369 +{
111370 + enum mark mark;
111371 + const_tree fndecl = gimple_call_fndecl(stmt);
111372 +
111373 + mark = get_intentional_attr_type(DECL_ORIGIN(fndecl));
111374 + if (mark == MARK_TURN_OFF)
111375 + return true;
111376 + return false;
111377 +}
111378 +
111379 +// If the argument(s) of the callee function is/are in the hash table or are marked by an attribute then mark the call stmt with an asm stmt
111380 +static void handle_interesting_function(gimple stmt)
111381 +{
111382 + unsigned int argnum;
111383 + tree fndecl;
111384 + bool orig_argnums[MAX_PARAM + 1] = {false};
111385 +
111386 + if (gimple_call_num_args(stmt) == 0)
111387 + return;
111388 + fndecl = gimple_call_fndecl(stmt);
111389 + if (fndecl == NULL_TREE)
111390 + return;
111391 + fndecl = DECL_ORIGIN(fndecl);
111392 +
111393 + if (is_mark_turn_off_attribute(stmt)) {
111394 + create_mark_asm(stmt, MARK_TURN_OFF);
111395 + return;
111396 + }
111397 +
111398 + search_interesting_args(fndecl, orig_argnums);
111399 +
111400 + for (argnum = 1; argnum < MAX_PARAM; argnum++)
111401 + if (orig_argnums[argnum])
111402 + insert_asm_arg(stmt, argnum);
111403 +}
111404 +
111405 +// If the return value of the caller function is in hash table (its index is 0) then mark the return stmt with an asm stmt
111406 +static void handle_interesting_ret(gimple stmt)
111407 +{
111408 + bool orig_argnums[MAX_PARAM + 1] = {false};
111409 +
111410 + search_interesting_args(current_function_decl, orig_argnums);
111411 +
111412 + if (orig_argnums[0])
111413 + insert_asm_ret(stmt);
111414 +}
111415 +
111416 +// Iterate over all the stmts and search for call and return stmts and mark them if they're in the hash table
111417 +static unsigned int search_interesting_functions(void)
111418 +{
111419 + basic_block bb;
111420 +
111421 + FOR_ALL_BB_FN(bb, cfun) {
111422 + gimple_stmt_iterator gsi;
111423 +
111424 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
111425 + gimple stmt = gsi_stmt(gsi);
111426 +
111427 + if (is_size_overflow_asm(stmt))
111428 + continue;
111429 +
111430 + if (is_gimple_call(stmt))
111431 + handle_interesting_function(stmt);
111432 + else if (gimple_code(stmt) == GIMPLE_RETURN)
111433 + handle_interesting_ret(stmt);
111434 + }
111435 + }
111436 + return 0;
111437 +}
111438 +
111439 +/*
111440 + * A lot of functions get inlined before the ipa passes so after the build_ssa gimple pass
111441 + * this pass inserts asm stmts to mark the interesting args
111442 + * that the ipa pass will detect and insert the size overflow checks for.
111443 + */
111444 +#if BUILDING_GCC_VERSION >= 4009
111445 +static const struct pass_data insert_size_overflow_asm_pass_data = {
111446 +#else
111447 +static struct gimple_opt_pass insert_size_overflow_asm_pass = {
111448 + .pass = {
111449 +#endif
111450 + .type = GIMPLE_PASS,
111451 + .name = "insert_size_overflow_asm",
111452 +#if BUILDING_GCC_VERSION >= 4008
111453 + .optinfo_flags = OPTGROUP_NONE,
111454 +#endif
111455 +#if BUILDING_GCC_VERSION >= 4009
111456 + .has_gate = false,
111457 + .has_execute = true,
111458 +#else
111459 + .gate = NULL,
111460 + .execute = search_interesting_functions,
111461 + .sub = NULL,
111462 + .next = NULL,
111463 + .static_pass_number = 0,
111464 +#endif
111465 + .tv_id = TV_NONE,
111466 + .properties_required = PROP_cfg,
111467 + .properties_provided = 0,
111468 + .properties_destroyed = 0,
111469 + .todo_flags_start = 0,
111470 + .todo_flags_finish = TODO_dump_func | TODO_verify_ssa | TODO_verify_stmts | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow
111471 +#if BUILDING_GCC_VERSION < 4009
111472 + }
111473 +#endif
111474 +};
111475 +
111476 +#if BUILDING_GCC_VERSION >= 4009
111477 +namespace {
111478 +class insert_size_overflow_asm_pass : public gimple_opt_pass {
111479 +public:
111480 + insert_size_overflow_asm_pass() : gimple_opt_pass(insert_size_overflow_asm_pass_data, g) {}
111481 + unsigned int execute() { return search_interesting_functions(); }
111482 +};
111483 +}
111484 +#endif
111485 +
111486 +struct opt_pass *make_insert_size_overflow_asm_pass(void)
111487 +{
111488 +#if BUILDING_GCC_VERSION >= 4009
111489 + return new insert_size_overflow_asm_pass();
111490 +#else
111491 + return &insert_size_overflow_asm_pass.pass;
111492 +#endif
111493 +}
111494 diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c
111495 new file mode 100644
111496 index 0000000..88469e9
111497 --- /dev/null
111498 +++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c
111499 @@ -0,0 +1,902 @@
111500 +/*
111501 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
111502 + * Licensed under the GPL v2, or (at your option) v3
111503 + *
111504 + * Homepage:
111505 + * http://www.grsecurity.net/~ephox/overflow_plugin/
111506 + *
111507 + * Documentation:
111508 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
111509 + *
111510 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
111511 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
111512 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
111513 + *
111514 + * Usage:
111515 + * $ make
111516 + * $ make run
111517 + */
111518 +
111519 +#include "gcc-common.h"
111520 +#include "size_overflow.h"
111521 +
111522 +#define MIN_CHECK true
111523 +#define MAX_CHECK false
111524 +
111525 +static tree get_size_overflow_type(struct visited *visited, const_gimple stmt, const_tree node)
111526 +{
111527 + const_tree type;
111528 + tree new_type;
111529 +
111530 + gcc_assert(node != NULL_TREE);
111531 +
111532 + type = TREE_TYPE(node);
111533 +
111534 + if (pointer_set_contains(visited->my_stmts, stmt))
111535 + return TREE_TYPE(node);
111536 +
111537 + switch (TYPE_MODE(type)) {
111538 + case QImode:
111539 + new_type = size_overflow_type_HI;
111540 + break;
111541 + case HImode:
111542 + new_type = size_overflow_type_SI;
111543 + break;
111544 + case SImode:
111545 + new_type = size_overflow_type_DI;
111546 + break;
111547 + case DImode:
111548 + if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
111549 + new_type = TYPE_UNSIGNED(type) ? unsigned_intDI_type_node : intDI_type_node;
111550 + else
111551 + new_type = size_overflow_type_TI;
111552 + break;
111553 + case TImode:
111554 + gcc_assert(!TYPE_UNSIGNED(type));
111555 + new_type = size_overflow_type_TI;
111556 + break;
111557 + default:
111558 + debug_tree((tree)node);
111559 + error("%s: unsupported gcc configuration (%qE).", __func__, current_function_decl);
111560 + gcc_unreachable();
111561 + }
111562 +
111563 + if (TYPE_QUALS(type) != 0)
111564 + return build_qualified_type(new_type, TYPE_QUALS(type));
111565 + return new_type;
111566 +}
111567 +
111568 +static tree get_lhs(const_gimple stmt)
111569 +{
111570 + switch (gimple_code(stmt)) {
111571 + case GIMPLE_ASSIGN:
111572 + case GIMPLE_CALL:
111573 + return gimple_get_lhs(stmt);
111574 + case GIMPLE_PHI:
111575 + return gimple_phi_result(stmt);
111576 + default:
111577 + return NULL_TREE;
111578 + }
111579 +}
111580 +
111581 +static tree cast_to_new_size_overflow_type(struct visited *visited, gimple stmt, tree rhs, tree size_overflow_type, bool before)
111582 +{
111583 + gimple_stmt_iterator gsi;
111584 + tree lhs;
111585 + gimple new_stmt;
111586 +
111587 + if (rhs == NULL_TREE)
111588 + return NULL_TREE;
111589 +
111590 + gsi = gsi_for_stmt(stmt);
111591 + new_stmt = build_cast_stmt(visited, size_overflow_type, rhs, CREATE_NEW_VAR, &gsi, before, false);
111592 + pointer_set_insert(visited->my_stmts, new_stmt);
111593 +
111594 + lhs = get_lhs(new_stmt);
111595 + gcc_assert(lhs != NULL_TREE);
111596 + return lhs;
111597 +}
111598 +
111599 +tree create_assign(struct visited *visited, gimple oldstmt, tree rhs1, bool before)
111600 +{
111601 + tree lhs, dst_type;
111602 + gimple_stmt_iterator gsi;
111603 +
111604 + if (rhs1 == NULL_TREE) {
111605 + debug_gimple_stmt(oldstmt);
111606 + error("%s: rhs1 is NULL_TREE", __func__);
111607 + gcc_unreachable();
111608 + }
111609 +
111610 + switch (gimple_code(oldstmt)) {
111611 + case GIMPLE_ASM:
111612 + lhs = rhs1;
111613 + break;
111614 + case GIMPLE_CALL:
111615 + case GIMPLE_ASSIGN:
111616 + lhs = gimple_get_lhs(oldstmt);
111617 + break;
111618 + default:
111619 + debug_gimple_stmt(oldstmt);
111620 + gcc_unreachable();
111621 + }
111622 +
111623 + gsi = gsi_for_stmt(oldstmt);
111624 + pointer_set_insert(visited->stmts, oldstmt);
111625 + if (lookup_stmt_eh_lp(oldstmt) != 0) {
111626 + basic_block next_bb, cur_bb;
111627 + const_edge e;
111628 +
111629 + gcc_assert(before == false);
111630 + gcc_assert(stmt_can_throw_internal(oldstmt));
111631 + gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL);
111632 + gcc_assert(!gsi_end_p(gsi));
111633 +
111634 + cur_bb = gimple_bb(oldstmt);
111635 + next_bb = cur_bb->next_bb;
111636 + e = find_edge(cur_bb, next_bb);
111637 + gcc_assert(e != NULL);
111638 + gcc_assert(e->flags & EDGE_FALLTHRU);
111639 +
111640 + gsi = gsi_after_labels(next_bb);
111641 + gcc_assert(!gsi_end_p(gsi));
111642 +
111643 + before = true;
111644 + oldstmt = gsi_stmt(gsi);
111645 + }
111646 +
111647 + dst_type = get_size_overflow_type(visited, oldstmt, lhs);
111648 +
111649 + if (is_gimple_constant(rhs1))
111650 + return cast_a_tree(dst_type, rhs1);
111651 + return cast_to_new_size_overflow_type(visited, oldstmt, rhs1, dst_type, before);
111652 +}
111653 +
111654 +tree dup_assign(struct visited *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3)
111655 +{
111656 + gimple stmt;
111657 + gimple_stmt_iterator gsi;
111658 + tree size_overflow_type, new_var, lhs = gimple_assign_lhs(oldstmt);
111659 +
111660 + if (pointer_set_contains(visited->my_stmts, oldstmt))
111661 + return lhs;
111662 +
111663 + if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) {
111664 + rhs1 = gimple_assign_rhs1(oldstmt);
111665 + rhs1 = create_assign(visited, oldstmt, rhs1, BEFORE_STMT);
111666 + }
111667 + if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) {
111668 + rhs2 = gimple_assign_rhs2(oldstmt);
111669 + rhs2 = create_assign(visited, oldstmt, rhs2, BEFORE_STMT);
111670 + }
111671 +
111672 + stmt = gimple_copy(oldstmt);
111673 + gimple_set_location(stmt, gimple_location(oldstmt));
111674 + pointer_set_insert(visited->my_stmts, stmt);
111675 +
111676 + if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR)
111677 + gimple_assign_set_rhs_code(stmt, MULT_EXPR);
111678 +
111679 + size_overflow_type = get_size_overflow_type(visited, oldstmt, node);
111680 +
111681 + new_var = create_new_var(size_overflow_type);
111682 + new_var = make_ssa_name(new_var, stmt);
111683 + gimple_assign_set_lhs(stmt, new_var);
111684 +
111685 + if (rhs1 != NULL_TREE)
111686 + gimple_assign_set_rhs1(stmt, rhs1);
111687 +
111688 + if (rhs2 != NULL_TREE)
111689 + gimple_assign_set_rhs2(stmt, rhs2);
111690 +#if BUILDING_GCC_VERSION >= 4006
111691 + if (rhs3 != NULL_TREE)
111692 + gimple_assign_set_rhs3(stmt, rhs3);
111693 +#endif
111694 + gimple_set_vuse(stmt, gimple_vuse(oldstmt));
111695 + gimple_set_vdef(stmt, gimple_vdef(oldstmt));
111696 +
111697 + gsi = gsi_for_stmt(oldstmt);
111698 + gsi_insert_after(&gsi, stmt, GSI_SAME_STMT);
111699 + update_stmt(stmt);
111700 + pointer_set_insert(visited->stmts, oldstmt);
111701 + return gimple_assign_lhs(stmt);
111702 +}
111703 +
111704 +static tree cast_parm_decl(struct visited *visited, tree phi_ssa_name, tree arg, tree size_overflow_type, basic_block bb)
111705 +{
111706 + gimple assign;
111707 + gimple_stmt_iterator gsi;
111708 + basic_block first_bb;
111709 +
111710 + gcc_assert(SSA_NAME_IS_DEFAULT_DEF(arg));
111711 +
111712 + if (bb->index == 0) {
111713 + first_bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
111714 + gcc_assert(dom_info_available_p(CDI_DOMINATORS));
111715 + set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
111716 + bb = first_bb;
111717 + }
111718 +
111719 + gsi = gsi_after_labels(bb);
111720 + assign = build_cast_stmt(visited, size_overflow_type, arg, phi_ssa_name, &gsi, BEFORE_STMT, false);
111721 + pointer_set_insert(visited->my_stmts, assign);
111722 +
111723 + return gimple_assign_lhs(assign);
111724 +}
111725 +
111726 +static tree use_phi_ssa_name(struct visited *visited, tree ssa_name_var, tree new_arg)
111727 +{
111728 + gimple_stmt_iterator gsi;
111729 + gimple assign, def_stmt = get_def_stmt(new_arg);
111730 +
111731 + if (gimple_code(def_stmt) == GIMPLE_PHI) {
111732 + gsi = gsi_after_labels(gimple_bb(def_stmt));
111733 + assign = build_cast_stmt(visited, TREE_TYPE(new_arg), new_arg, ssa_name_var, &gsi, BEFORE_STMT, true);
111734 + } else {
111735 + gsi = gsi_for_stmt(def_stmt);
111736 + assign = build_cast_stmt(visited, TREE_TYPE(new_arg), new_arg, ssa_name_var, &gsi, AFTER_STMT, true);
111737 + }
111738 +
111739 + pointer_set_insert(visited->my_stmts, assign);
111740 + return gimple_assign_lhs(assign);
111741 +}
111742 +
111743 +static tree cast_visited_phi_arg(struct visited *visited, tree ssa_name_var, tree arg, tree size_overflow_type)
111744 +{
111745 + basic_block bb;
111746 + gimple_stmt_iterator gsi;
111747 + const_gimple def_stmt;
111748 + gimple assign;
111749 +
111750 + def_stmt = get_def_stmt(arg);
111751 + bb = gimple_bb(def_stmt);
111752 + gcc_assert(bb->index != 0);
111753 + gsi = gsi_after_labels(bb);
111754 +
111755 + assign = build_cast_stmt(visited, size_overflow_type, arg, ssa_name_var, &gsi, BEFORE_STMT, false);
111756 + pointer_set_insert(visited->my_stmts, assign);
111757 + return gimple_assign_lhs(assign);
111758 +}
111759 +
111760 +static tree create_new_phi_arg(struct visited *visited, tree ssa_name_var, tree new_arg, gimple oldstmt, unsigned int i)
111761 +{
111762 + tree size_overflow_type;
111763 + tree arg;
111764 + const_gimple def_stmt;
111765 +
111766 + if (new_arg != NULL_TREE && is_gimple_constant(new_arg))
111767 + return new_arg;
111768 +
111769 + arg = gimple_phi_arg_def(oldstmt, i);
111770 + def_stmt = get_def_stmt(arg);
111771 + gcc_assert(def_stmt != NULL);
111772 + size_overflow_type = get_size_overflow_type(visited, oldstmt, arg);
111773 +
111774 + switch (gimple_code(def_stmt)) {
111775 + case GIMPLE_PHI:
111776 + return cast_visited_phi_arg(visited, ssa_name_var, arg, size_overflow_type);
111777 + case GIMPLE_NOP: {
111778 + basic_block bb;
111779 +
111780 + bb = gimple_phi_arg_edge(oldstmt, i)->src;
111781 + return cast_parm_decl(visited, ssa_name_var, arg, size_overflow_type, bb);
111782 + }
111783 + case GIMPLE_ASM: {
111784 + gimple_stmt_iterator gsi;
111785 + gimple assign, stmt = get_def_stmt(arg);
111786 +
111787 + gsi = gsi_for_stmt(stmt);
111788 + assign = build_cast_stmt(visited, size_overflow_type, arg, ssa_name_var, &gsi, AFTER_STMT, false);
111789 + pointer_set_insert(visited->my_stmts, assign);
111790 + return gimple_assign_lhs(assign);
111791 + }
111792 + default:
111793 + gcc_assert(new_arg != NULL_TREE);
111794 + gcc_assert(types_compatible_p(TREE_TYPE(new_arg), size_overflow_type));
111795 + return use_phi_ssa_name(visited, ssa_name_var, new_arg);
111796 + }
111797 +}
111798 +
111799 +static gimple overflow_create_phi_node(struct visited *visited, gimple oldstmt, tree result)
111800 +{
111801 + basic_block bb;
111802 + gimple phi;
111803 + gimple_seq seq;
111804 + gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt);
111805 +
111806 + bb = gsi_bb(gsi);
111807 +
111808 + if (result == NULL_TREE) {
111809 + tree old_result = gimple_phi_result(oldstmt);
111810 + tree size_overflow_type = get_size_overflow_type(visited, oldstmt, old_result);
111811 +
111812 + result = create_new_var(size_overflow_type);
111813 + }
111814 +
111815 + phi = create_phi_node(result, bb);
111816 + gimple_phi_set_result(phi, make_ssa_name(result, phi));
111817 + seq = phi_nodes(bb);
111818 + gsi = gsi_last(seq);
111819 + gsi_remove(&gsi, false);
111820 +
111821 + gsi = gsi_for_stmt(oldstmt);
111822 + gsi_insert_after(&gsi, phi, GSI_NEW_STMT);
111823 + gimple_set_bb(phi, bb);
111824 + return phi;
111825 +}
111826 +
111827 +#if BUILDING_GCC_VERSION <= 4007
111828 +static tree create_new_phi_node(struct visited *visited, VEC(tree, heap) **args, tree ssa_name_var, gimple oldstmt)
111829 +#else
111830 +static tree create_new_phi_node(struct visited *visited, vec<tree, va_heap, vl_embed> *&args, tree ssa_name_var, gimple oldstmt)
111831 +#endif
111832 +{
111833 + gimple new_phi;
111834 + unsigned int i;
111835 + tree arg, result;
111836 + location_t loc = gimple_location(oldstmt);
111837 +
111838 +#if BUILDING_GCC_VERSION <= 4007
111839 + gcc_assert(!VEC_empty(tree, *args));
111840 +#else
111841 + gcc_assert(!args->is_empty());
111842 +#endif
111843 +
111844 + new_phi = overflow_create_phi_node(visited, oldstmt, ssa_name_var);
111845 + result = gimple_phi_result(new_phi);
111846 + ssa_name_var = SSA_NAME_VAR(result);
111847 +
111848 +#if BUILDING_GCC_VERSION <= 4007
111849 + FOR_EACH_VEC_ELT(tree, *args, i, arg) {
111850 +#else
111851 + FOR_EACH_VEC_SAFE_ELT(args, i, arg) {
111852 +#endif
111853 + arg = create_new_phi_arg(visited, ssa_name_var, arg, oldstmt, i);
111854 + add_phi_arg(new_phi, arg, gimple_phi_arg_edge(oldstmt, i), loc);
111855 + }
111856 +
111857 +#if BUILDING_GCC_VERSION <= 4007
111858 + VEC_free(tree, heap, *args);
111859 +#else
111860 + vec_free(args);
111861 +#endif
111862 + update_stmt(new_phi);
111863 + pointer_set_insert(visited->my_stmts, new_phi);
111864 + return result;
111865 +}
111866 +
111867 +static tree handle_phi(struct visited *visited, struct cgraph_node *caller_node, tree orig_result)
111868 +{
111869 + tree ssa_name_var = NULL_TREE;
111870 +#if BUILDING_GCC_VERSION <= 4007
111871 + VEC(tree, heap) *args = NULL;
111872 +#else
111873 + vec<tree, va_heap, vl_embed> *args = NULL;
111874 +#endif
111875 + gimple oldstmt = get_def_stmt(orig_result);
111876 + unsigned int i, len = gimple_phi_num_args(oldstmt);
111877 +
111878 + pointer_set_insert(visited->stmts, oldstmt);
111879 + for (i = 0; i < len; i++) {
111880 + tree arg, new_arg;
111881 +
111882 + arg = gimple_phi_arg_def(oldstmt, i);
111883 + new_arg = expand(visited, caller_node, arg);
111884 +
111885 + if (ssa_name_var == NULL_TREE && new_arg != NULL_TREE)
111886 + ssa_name_var = SSA_NAME_VAR(new_arg);
111887 +
111888 + if (is_gimple_constant(arg)) {
111889 + tree size_overflow_type = get_size_overflow_type(visited, oldstmt, arg);
111890 +
111891 + new_arg = cast_a_tree(size_overflow_type, arg);
111892 + }
111893 +
111894 +#if BUILDING_GCC_VERSION <= 4007
111895 + VEC_safe_push(tree, heap, args, new_arg);
111896 +#else
111897 + vec_safe_push(args, new_arg);
111898 +#endif
111899 + }
111900 +
111901 +#if BUILDING_GCC_VERSION <= 4007
111902 + return create_new_phi_node(visited, &args, ssa_name_var, oldstmt);
111903 +#else
111904 + return create_new_phi_node(visited, args, ssa_name_var, oldstmt);
111905 +#endif
111906 +}
111907 +
111908 +static tree create_cast_assign(struct visited *visited, gimple stmt)
111909 +{
111910 + tree rhs1 = gimple_assign_rhs1(stmt);
111911 + tree lhs = gimple_assign_lhs(stmt);
111912 + const_tree rhs1_type = TREE_TYPE(rhs1);
111913 + const_tree lhs_type = TREE_TYPE(lhs);
111914 +
111915 + if (TYPE_UNSIGNED(rhs1_type) == TYPE_UNSIGNED(lhs_type))
111916 + return create_assign(visited, stmt, lhs, AFTER_STMT);
111917 +
111918 + return create_assign(visited, stmt, rhs1, AFTER_STMT);
111919 +}
111920 +
111921 +static bool skip_lhs_cast_check(const_gimple stmt)
111922 +{
111923 + const_tree rhs = gimple_assign_rhs1(stmt);
111924 + const_gimple def_stmt = get_def_stmt(rhs);
111925 +
111926 + // 3.8.2 kernel/futex_compat.c compat_exit_robust_list(): get_user() 64 ulong -> int (compat_long_t), int max
111927 + if (gimple_code(def_stmt) == GIMPLE_ASM)
111928 + return true;
111929 +
111930 + if (is_const_plus_unsigned_signed_truncation(rhs))
111931 + return true;
111932 +
111933 + return false;
111934 +}
111935 +
111936 +static tree create_string_param(tree string)
111937 +{
111938 + tree i_type, a_type;
111939 + const int length = TREE_STRING_LENGTH(string);
111940 +
111941 + gcc_assert(length > 0);
111942 +
111943 + i_type = build_index_type(build_int_cst(NULL_TREE, length - 1));
111944 + a_type = build_array_type(char_type_node, i_type);
111945 +
111946 + TREE_TYPE(string) = a_type;
111947 + TREE_CONSTANT(string) = 1;
111948 + TREE_READONLY(string) = 1;
111949 +
111950 + return build1(ADDR_EXPR, ptr_type_node, string);
111951 +}
111952 +
111953 +static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value)
111954 +{
111955 + gimple cond_stmt;
111956 + gimple_stmt_iterator gsi = gsi_last_bb(cond_bb);
111957 +
111958 + cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE);
111959 + gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING);
111960 + update_stmt(cond_stmt);
111961 +}
111962 +
111963 +static void insert_cond_result(struct cgraph_node *caller_node, basic_block bb_true, const_gimple stmt, const_tree arg, bool min)
111964 +{
111965 + gimple func_stmt;
111966 + const_gimple def_stmt;
111967 + const_tree loc_line;
111968 + tree loc_file, ssa_name, current_func;
111969 + expanded_location xloc;
111970 + char *ssa_name_buf;
111971 + int len;
111972 + struct cgraph_edge *edge;
111973 + struct cgraph_node *callee_node;
111974 + int frequency;
111975 + gimple_stmt_iterator gsi = gsi_start_bb(bb_true);
111976 +
111977 + def_stmt = get_def_stmt(arg);
111978 + xloc = expand_location(gimple_location(def_stmt));
111979 +
111980 + if (!gimple_has_location(def_stmt)) {
111981 + xloc = expand_location(gimple_location(stmt));
111982 + if (!gimple_has_location(stmt))
111983 + xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
111984 + }
111985 +
111986 + loc_line = build_int_cstu(unsigned_type_node, xloc.line);
111987 +
111988 + loc_file = build_string(strlen(xloc.file) + 1, xloc.file);
111989 + loc_file = create_string_param(loc_file);
111990 +
111991 + current_func = build_string(DECL_NAME_LENGTH(current_function_decl) + 1, DECL_NAME_POINTER(current_function_decl));
111992 + current_func = create_string_param(current_func);
111993 +
111994 + gcc_assert(DECL_NAME(SSA_NAME_VAR(arg)) != NULL);
111995 + call_count++;
111996 + len = asprintf(&ssa_name_buf, "%s_%u %s, count: %u\n", DECL_NAME_POINTER(SSA_NAME_VAR(arg)), SSA_NAME_VERSION(arg), min ? "min" : "max", call_count);
111997 + gcc_assert(len > 0);
111998 + ssa_name = build_string(len + 1, ssa_name_buf);
111999 + free(ssa_name_buf);
112000 + ssa_name = create_string_param(ssa_name);
112001 +
112002 + // void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
112003 + func_stmt = gimple_build_call(report_size_overflow_decl, 4, loc_file, loc_line, current_func, ssa_name);
112004 + gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING);
112005 +
112006 + callee_node = cgraph_get_create_node(report_size_overflow_decl);
112007 + frequency = compute_call_stmt_bb_frequency(current_function_decl, bb_true);
112008 +
112009 + edge = cgraph_create_edge(caller_node, callee_node, func_stmt, bb_true->count, frequency, bb_true->loop_depth);
112010 + gcc_assert(edge != NULL);
112011 +}
112012 +
112013 +static void insert_check_size_overflow(struct cgraph_node *caller_node, gimple stmt, enum tree_code cond_code, tree arg, tree type_value, bool before, bool min)
112014 +{
112015 + basic_block cond_bb, join_bb, bb_true;
112016 + edge e;
112017 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
112018 +
112019 + cond_bb = gimple_bb(stmt);
112020 + if (before)
112021 + gsi_prev(&gsi);
112022 + if (gsi_end_p(gsi))
112023 + e = split_block_after_labels(cond_bb);
112024 + else
112025 + e = split_block(cond_bb, gsi_stmt(gsi));
112026 + cond_bb = e->src;
112027 + join_bb = e->dest;
112028 + e->flags = EDGE_FALSE_VALUE;
112029 + e->probability = REG_BR_PROB_BASE;
112030 +
112031 + bb_true = create_empty_bb(cond_bb);
112032 + make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE);
112033 + make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE);
112034 + make_edge(bb_true, join_bb, EDGE_FALLTHRU);
112035 +
112036 + gcc_assert(dom_info_available_p(CDI_DOMINATORS));
112037 + set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb);
112038 + set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb);
112039 +
112040 + if (current_loops != NULL) {
112041 + gcc_assert(cond_bb->loop_father == join_bb->loop_father);
112042 + add_bb_to_loop(bb_true, cond_bb->loop_father);
112043 + }
112044 +
112045 + insert_cond(cond_bb, arg, cond_code, type_value);
112046 + insert_cond_result(caller_node, bb_true, stmt, arg, min);
112047 +
112048 +// print_the_code_insertions(stmt);
112049 +}
112050 +
112051 +void check_size_overflow(struct cgraph_node *caller_node, gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before)
112052 +{
112053 + const_tree rhs_type = TREE_TYPE(rhs);
112054 + tree cast_rhs_type, type_max_type, type_min_type, type_max, type_min;
112055 +
112056 + gcc_assert(rhs_type != NULL_TREE);
112057 + if (TREE_CODE(rhs_type) == POINTER_TYPE)
112058 + return;
112059 +
112060 + gcc_assert(TREE_CODE(rhs_type) == INTEGER_TYPE || TREE_CODE(rhs_type) == ENUMERAL_TYPE);
112061 +
112062 + if (is_const_plus_unsigned_signed_truncation(rhs))
112063 + return;
112064 +
112065 + type_max = cast_a_tree(size_overflow_type, TYPE_MAX_VALUE(rhs_type));
112066 + // typemax (-1) < typemin (0)
112067 + if (TREE_OVERFLOW(type_max))
112068 + return;
112069 +
112070 + type_min = cast_a_tree(size_overflow_type, TYPE_MIN_VALUE(rhs_type));
112071 +
112072 + cast_rhs_type = TREE_TYPE(cast_rhs);
112073 + type_max_type = TREE_TYPE(type_max);
112074 + gcc_assert(types_compatible_p(cast_rhs_type, type_max_type));
112075 +
112076 + insert_check_size_overflow(caller_node, stmt, GT_EXPR, cast_rhs, type_max, before, MAX_CHECK);
112077 +
112078 + // special case: get_size_overflow_type(), 32, u64->s
112079 + if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode) && TYPE_UNSIGNED(size_overflow_type) && !TYPE_UNSIGNED(rhs_type))
112080 + return;
112081 +
112082 + type_min_type = TREE_TYPE(type_min);
112083 + gcc_assert(types_compatible_p(type_max_type, type_min_type));
112084 + insert_check_size_overflow(caller_node, stmt, LT_EXPR, cast_rhs, type_min, before, MIN_CHECK);
112085 +}
112086 +
112087 +static tree create_cast_overflow_check(struct visited *visited, struct cgraph_node *caller_node, tree new_rhs1, gimple stmt)
112088 +{
112089 + bool cast_lhs, cast_rhs;
112090 + tree lhs = gimple_assign_lhs(stmt);
112091 + tree rhs = gimple_assign_rhs1(stmt);
112092 + const_tree lhs_type = TREE_TYPE(lhs);
112093 + const_tree rhs_type = TREE_TYPE(rhs);
112094 + enum machine_mode lhs_mode = TYPE_MODE(lhs_type);
112095 + enum machine_mode rhs_mode = TYPE_MODE(rhs_type);
112096 + unsigned int lhs_size = GET_MODE_BITSIZE(lhs_mode);
112097 + unsigned int rhs_size = GET_MODE_BITSIZE(rhs_mode);
112098 +
112099 + static bool check_lhs[3][4] = {
112100 + // ss su us uu
112101 + { false, true, true, false }, // lhs > rhs
112102 + { false, false, false, false }, // lhs = rhs
112103 + { true, true, true, true }, // lhs < rhs
112104 + };
112105 +
112106 + static bool check_rhs[3][4] = {
112107 + // ss su us uu
112108 + { true, false, true, true }, // lhs > rhs
112109 + { true, false, true, true }, // lhs = rhs
112110 + { true, false, true, true }, // lhs < rhs
112111 + };
112112 +
112113 + // skip lhs check on signed SI -> HI cast or signed SI -> QI cast !!!!
112114 + if (rhs_mode == SImode && !TYPE_UNSIGNED(rhs_type) && (lhs_mode == HImode || lhs_mode == QImode))
112115 + return create_assign(visited, stmt, lhs, AFTER_STMT);
112116 +
112117 + if (lhs_size > rhs_size) {
112118 + cast_lhs = check_lhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112119 + cast_rhs = check_rhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112120 + } else if (lhs_size == rhs_size) {
112121 + cast_lhs = check_lhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112122 + cast_rhs = check_rhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112123 + } else {
112124 + cast_lhs = check_lhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112125 + cast_rhs = check_rhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
112126 + }
112127 +
112128 + if (!cast_lhs && !cast_rhs)
112129 + return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
112130 +
112131 + if (cast_lhs && !skip_lhs_cast_check(stmt))
112132 + check_size_overflow(caller_node, stmt, TREE_TYPE(new_rhs1), new_rhs1, lhs, BEFORE_STMT);
112133 +
112134 + if (cast_rhs)
112135 + check_size_overflow(caller_node, stmt, TREE_TYPE(new_rhs1), new_rhs1, rhs, BEFORE_STMT);
112136 +
112137 + return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
112138 +}
112139 +
112140 +static tree handle_unary_rhs(struct visited *visited, struct cgraph_node *caller_node, gimple stmt)
112141 +{
112142 + enum tree_code rhs_code;
112143 + tree rhs1, new_rhs1, lhs = gimple_assign_lhs(stmt);
112144 +
112145 + if (pointer_set_contains(visited->my_stmts, stmt))
112146 + return lhs;
112147 +
112148 + rhs1 = gimple_assign_rhs1(stmt);
112149 + if (TREE_CODE(TREE_TYPE(rhs1)) == POINTER_TYPE)
112150 + return create_assign(visited, stmt, lhs, AFTER_STMT);
112151 +
112152 + new_rhs1 = expand(visited, caller_node, rhs1);
112153 +
112154 + if (new_rhs1 == NULL_TREE)
112155 + return create_cast_assign(visited, stmt);
112156 +
112157 + if (pointer_set_contains(visited->no_cast_check, stmt))
112158 + return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
112159 +
112160 + rhs_code = gimple_assign_rhs_code(stmt);
112161 + if (rhs_code == BIT_NOT_EXPR || rhs_code == NEGATE_EXPR) {
112162 + tree size_overflow_type = get_size_overflow_type(visited, stmt, rhs1);
112163 +
112164 + new_rhs1 = cast_to_new_size_overflow_type(visited, stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
112165 + check_size_overflow(caller_node, stmt, size_overflow_type, new_rhs1, rhs1, BEFORE_STMT);
112166 + return create_assign(visited, stmt, lhs, AFTER_STMT);
112167 + }
112168 +
112169 + if (!gimple_assign_cast_p(stmt))
112170 + return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
112171 +
112172 + return create_cast_overflow_check(visited, caller_node, new_rhs1, stmt);
112173 +}
112174 +
112175 +static tree handle_unary_ops(struct visited *visited, struct cgraph_node *caller_node, gimple stmt)
112176 +{
112177 + tree rhs1, lhs = gimple_assign_lhs(stmt);
112178 + gimple def_stmt = get_def_stmt(lhs);
112179 +
112180 + gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP);
112181 + rhs1 = gimple_assign_rhs1(def_stmt);
112182 +
112183 + if (is_gimple_constant(rhs1))
112184 + return create_assign(visited, def_stmt, lhs, AFTER_STMT);
112185 +
112186 + switch (TREE_CODE(rhs1)) {
112187 + case SSA_NAME: {
112188 + tree ret = handle_unary_rhs(visited, caller_node, def_stmt);
112189 +
112190 + if (gimple_assign_cast_p(stmt))
112191 + unsigned_signed_cast_intentional_overflow(visited, stmt);
112192 + return ret;
112193 + }
112194 + case ARRAY_REF:
112195 + case BIT_FIELD_REF:
112196 + case ADDR_EXPR:
112197 + case COMPONENT_REF:
112198 + case INDIRECT_REF:
112199 +#if BUILDING_GCC_VERSION >= 4006
112200 + case MEM_REF:
112201 +#endif
112202 + case TARGET_MEM_REF:
112203 + case VIEW_CONVERT_EXPR:
112204 + return create_assign(visited, def_stmt, lhs, AFTER_STMT);
112205 + case PARM_DECL:
112206 + case VAR_DECL:
112207 + return create_assign(visited, stmt, lhs, AFTER_STMT);
112208 +
112209 + default:
112210 + debug_gimple_stmt(def_stmt);
112211 + debug_tree(rhs1);
112212 + gcc_unreachable();
112213 + }
112214 +}
112215 +
112216 +static void __unused print_the_code_insertions(const_gimple stmt)
112217 +{
112218 + location_t loc = gimple_location(stmt);
112219 +
112220 + inform(loc, "Integer size_overflow check applied here.");
112221 +}
112222 +
112223 +static tree handle_binary_ops(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
112224 +{
112225 + enum intentional_overflow_type res;
112226 + tree rhs1, rhs2, new_lhs;
112227 + gimple def_stmt = get_def_stmt(lhs);
112228 + tree new_rhs1 = NULL_TREE;
112229 + tree new_rhs2 = NULL_TREE;
112230 +
112231 + rhs1 = gimple_assign_rhs1(def_stmt);
112232 + rhs2 = gimple_assign_rhs2(def_stmt);
112233 +
112234 + /* no DImode/TImode division in the 32/64 bit kernel */
112235 + switch (gimple_assign_rhs_code(def_stmt)) {
112236 + case RDIV_EXPR:
112237 + case TRUNC_DIV_EXPR:
112238 + case CEIL_DIV_EXPR:
112239 + case FLOOR_DIV_EXPR:
112240 + case ROUND_DIV_EXPR:
112241 + case TRUNC_MOD_EXPR:
112242 + case CEIL_MOD_EXPR:
112243 + case FLOOR_MOD_EXPR:
112244 + case ROUND_MOD_EXPR:
112245 + case EXACT_DIV_EXPR:
112246 + case POINTER_PLUS_EXPR:
112247 + case BIT_AND_EXPR:
112248 + return create_assign(visited, def_stmt, lhs, AFTER_STMT);
112249 + default:
112250 + break;
112251 + }
112252 +
112253 + new_lhs = handle_integer_truncation(visited, caller_node, lhs);
112254 + if (new_lhs != NULL_TREE)
112255 + return new_lhs;
112256 +
112257 + if (TREE_CODE(rhs1) == SSA_NAME)
112258 + new_rhs1 = expand(visited, caller_node, rhs1);
112259 + if (TREE_CODE(rhs2) == SSA_NAME)
112260 + new_rhs2 = expand(visited, caller_node, rhs2);
112261 +
112262 + res = add_mul_intentional_overflow(def_stmt);
112263 + if (res != NO_INTENTIONAL_OVERFLOW) {
112264 + new_lhs = dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
112265 + insert_cast_expr(visited, get_def_stmt(new_lhs), res);
112266 + return new_lhs;
112267 + }
112268 +
112269 + if (skip_expr_on_double_type(def_stmt)) {
112270 + new_lhs = dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
112271 + insert_cast_expr(visited, get_def_stmt(new_lhs), NO_INTENTIONAL_OVERFLOW);
112272 + return new_lhs;
112273 + }
112274 +
112275 + if (is_a_neg_overflow(def_stmt, rhs2))
112276 + return handle_intentional_overflow(visited, caller_node, true, def_stmt, new_rhs1, NULL_TREE);
112277 + if (is_a_neg_overflow(def_stmt, rhs1))
112278 + return handle_intentional_overflow(visited, caller_node, true, def_stmt, new_rhs2, new_rhs2);
112279 +
112280 +
112281 + if (is_a_constant_overflow(def_stmt, rhs2))
112282 + return handle_intentional_overflow(visited, caller_node, !is_a_cast_and_const_overflow(rhs1), def_stmt, new_rhs1, NULL_TREE);
112283 + if (is_a_constant_overflow(def_stmt, rhs1))
112284 + return handle_intentional_overflow(visited, caller_node, !is_a_cast_and_const_overflow(rhs2), def_stmt, new_rhs2, new_rhs2);
112285 +
112286 + // the const is between 0 and (signed) MAX
112287 + if (is_gimple_constant(rhs1))
112288 + new_rhs1 = create_assign(visited, def_stmt, rhs1, BEFORE_STMT);
112289 + if (is_gimple_constant(rhs2))
112290 + new_rhs2 = create_assign(visited, def_stmt, rhs2, BEFORE_STMT);
112291 +
112292 + return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
112293 +}
112294 +
112295 +#if BUILDING_GCC_VERSION >= 4006
112296 +static tree get_new_rhs(struct visited *visited, struct cgraph_node *caller_node, tree size_overflow_type, tree rhs)
112297 +{
112298 + if (is_gimple_constant(rhs))
112299 + return cast_a_tree(size_overflow_type, rhs);
112300 + if (TREE_CODE(rhs) != SSA_NAME)
112301 + return NULL_TREE;
112302 + return expand(visited, caller_node, rhs);
112303 +}
112304 +
112305 +static tree handle_ternary_ops(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
112306 +{
112307 + tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3, size_overflow_type;
112308 + gimple def_stmt = get_def_stmt(lhs);
112309 +
112310 + size_overflow_type = get_size_overflow_type(visited, def_stmt, lhs);
112311 +
112312 + rhs1 = gimple_assign_rhs1(def_stmt);
112313 + rhs2 = gimple_assign_rhs2(def_stmt);
112314 + rhs3 = gimple_assign_rhs3(def_stmt);
112315 + new_rhs1 = get_new_rhs(visited, caller_node, size_overflow_type, rhs1);
112316 + new_rhs2 = get_new_rhs(visited, caller_node, size_overflow_type, rhs2);
112317 + new_rhs3 = get_new_rhs(visited, caller_node, size_overflow_type, rhs3);
112318 +
112319 + return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, new_rhs3);
112320 +}
112321 +#endif
112322 +
112323 +static tree get_my_stmt_lhs(struct visited *visited, gimple stmt)
112324 +{
112325 + gimple_stmt_iterator gsi;
112326 + gimple next_stmt = NULL;
112327 +
112328 + gsi = gsi_for_stmt(stmt);
112329 +
112330 + do {
112331 + gsi_next(&gsi);
112332 + next_stmt = gsi_stmt(gsi);
112333 +
112334 + if (gimple_code(stmt) == GIMPLE_PHI && !pointer_set_contains(visited->my_stmts, next_stmt))
112335 + return NULL_TREE;
112336 +
112337 + if (pointer_set_contains(visited->my_stmts, next_stmt) && !pointer_set_contains(visited->skip_expr_casts, next_stmt))
112338 + break;
112339 +
112340 + gcc_assert(pointer_set_contains(visited->my_stmts, next_stmt));
112341 + } while (!gsi_end_p(gsi));
112342 +
112343 + gcc_assert(next_stmt);
112344 + return get_lhs(next_stmt);
112345 +}
112346 +
112347 +static tree expand_visited(struct visited *visited, gimple def_stmt)
112348 +{
112349 + gimple_stmt_iterator gsi;
112350 + enum gimple_code code = gimple_code(def_stmt);
112351 +
112352 + if (code == GIMPLE_ASM)
112353 + return NULL_TREE;
112354 +
112355 + gsi = gsi_for_stmt(def_stmt);
112356 + gsi_next(&gsi);
112357 +
112358 + if (gimple_code(def_stmt) == GIMPLE_PHI && gsi_end_p(gsi))
112359 + return NULL_TREE;
112360 + return get_my_stmt_lhs(visited, def_stmt);
112361 +}
112362 +
112363 +tree expand(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
112364 +{
112365 + gimple def_stmt;
112366 +
112367 + def_stmt = get_def_stmt(lhs);
112368 +
112369 + if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
112370 + return NULL_TREE;
112371 +
112372 + if (pointer_set_contains(visited->my_stmts, def_stmt))
112373 + return lhs;
112374 +
112375 + if (pointer_set_contains(visited->stmts, def_stmt))
112376 + return expand_visited(visited, def_stmt);
112377 +
112378 + switch (gimple_code(def_stmt)) {
112379 + case GIMPLE_PHI:
112380 + return handle_phi(visited, caller_node, lhs);
112381 + case GIMPLE_CALL:
112382 + case GIMPLE_ASM:
112383 + return create_assign(visited, def_stmt, lhs, AFTER_STMT);
112384 + case GIMPLE_ASSIGN:
112385 + switch (gimple_num_ops(def_stmt)) {
112386 + case 2:
112387 + return handle_unary_ops(visited, caller_node, def_stmt);
112388 + case 3:
112389 + return handle_binary_ops(visited, caller_node, lhs);
112390 +#if BUILDING_GCC_VERSION >= 4006
112391 + case 4:
112392 + return handle_ternary_ops(visited, caller_node, lhs);
112393 +#endif
112394 + }
112395 + default:
112396 + debug_gimple_stmt(def_stmt);
112397 + error("%s: unknown gimple code", __func__);
112398 + gcc_unreachable();
112399 + }
112400 +}
112401 +
112402 diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c
112403 new file mode 100644
112404 index 0000000..715a590
112405 --- /dev/null
112406 +++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c
112407 @@ -0,0 +1,1141 @@
112408 +/*
112409 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
112410 + * Licensed under the GPL v2, or (at your option) v3
112411 + *
112412 + * Homepage:
112413 + * http://www.grsecurity.net/~ephox/overflow_plugin/
112414 + *
112415 + * Documentation:
112416 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
112417 + *
112418 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
112419 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
112420 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
112421 + *
112422 + * Usage:
112423 + * $ make
112424 + * $ make run
112425 + */
112426 +
112427 +#include "gcc-common.h"
112428 +#include "size_overflow.h"
112429 +
112430 +#define VEC_LEN 128
112431 +#define RET_CHECK NULL_TREE
112432 +#define WRONG_NODE 32
112433 +#define NOT_INTENTIONAL_ASM NULL
112434 +
112435 +unsigned int call_count;
112436 +
112437 +static void set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree lhs);
112438 +static void walk_use_def(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs);
112439 +
112440 +struct visited_fns {
112441 + struct visited_fns *next;
112442 + const_tree fndecl;
112443 + unsigned int num;
112444 + const_gimple first_stmt;
112445 +};
112446 +
112447 +struct next_cgraph_node {
112448 + struct next_cgraph_node *next;
112449 + struct cgraph_node *current_function;
112450 + tree callee_fndecl;
112451 + unsigned int num;
112452 +};
112453 +
112454 +// Don't want to duplicate entries in next_cgraph_node
112455 +static bool is_in_next_cgraph_node(struct next_cgraph_node *head, struct cgraph_node *node, const_tree fndecl, unsigned int num)
112456 +{
112457 + const_tree new_callee_fndecl;
112458 + struct next_cgraph_node *cur_node;
112459 +
112460 + if (fndecl == RET_CHECK)
112461 + new_callee_fndecl = NODE_DECL(node);
112462 + else
112463 + new_callee_fndecl = fndecl;
112464 +
112465 + for (cur_node = head; cur_node; cur_node = cur_node->next) {
112466 + if (!operand_equal_p(NODE_DECL(cur_node->current_function), NODE_DECL(node), 0))
112467 + continue;
112468 + if (!operand_equal_p(cur_node->callee_fndecl, new_callee_fndecl, 0))
112469 + continue;
112470 + if (num == cur_node->num)
112471 + return true;
112472 + }
112473 + return false;
112474 +}
112475 +
112476 +/* Add a next_cgraph_node into the list for handle_function().
112477 + * handle_function() iterates over all the next cgraph nodes and
112478 + * starts the overflow check insertion process.
112479 + */
112480 +static struct next_cgraph_node *create_new_next_cgraph_node(struct next_cgraph_node *head, struct cgraph_node *node, tree fndecl, unsigned int num)
112481 +{
112482 + struct next_cgraph_node *new_node;
112483 +
112484 + if (is_in_next_cgraph_node(head, node, fndecl, num))
112485 + return head;
112486 +
112487 + new_node = (struct next_cgraph_node *)xmalloc(sizeof(*new_node));
112488 + new_node->current_function = node;
112489 + new_node->next = NULL;
112490 + new_node->num = num;
112491 + if (fndecl == RET_CHECK)
112492 + new_node->callee_fndecl = NODE_DECL(node);
112493 + else
112494 + new_node->callee_fndecl = fndecl;
112495 +
112496 + if (!head)
112497 + return new_node;
112498 +
112499 + new_node->next = head;
112500 + return new_node;
112501 +}
112502 +
112503 +static struct next_cgraph_node *create_new_next_cgraph_nodes(struct next_cgraph_node *head, struct cgraph_node *node, unsigned int num)
112504 +{
112505 + struct cgraph_edge *e;
112506 +
112507 + if (num == 0)
112508 + return create_new_next_cgraph_node(head, node, RET_CHECK, num);
112509 +
112510 + for (e = node->callers; e; e = e->next_caller) {
112511 + tree fndecl = gimple_call_fndecl(e->call_stmt);
112512 +
112513 + gcc_assert(fndecl != NULL_TREE);
112514 + head = create_new_next_cgraph_node(head, e->caller, fndecl, num);
112515 + }
112516 +
112517 + return head;
112518 +}
112519 +
112520 +struct missing_functions {
112521 + struct missing_functions *next;
112522 + const_tree node;
112523 + tree fndecl;
112524 +};
112525 +
112526 +static struct missing_functions *create_new_missing_function(struct missing_functions *missing_fn_head, tree node)
112527 +{
112528 + struct missing_functions *new_function;
112529 +
112530 + new_function = (struct missing_functions *)xmalloc(sizeof(*new_function));
112531 + new_function->node = node;
112532 + new_function->next = NULL;
112533 +
112534 + if (TREE_CODE(node) == FUNCTION_DECL)
112535 + new_function->fndecl = node;
112536 + else
112537 + new_function->fndecl = current_function_decl;
112538 + gcc_assert(new_function->fndecl);
112539 +
112540 + if (!missing_fn_head)
112541 + return new_function;
112542 +
112543 + new_function->next = missing_fn_head;
112544 + return new_function;
112545 +}
112546 +
112547 +/* If the function is missing from the hash table and it is a static function
112548 + * then create a next_cgraph_node from it for handle_function()
112549 + */
112550 +static struct next_cgraph_node *check_missing_overflow_attribute_and_create_next_node(struct next_cgraph_node *cnodes, struct missing_functions *missing_fn_head)
112551 +{
112552 + unsigned int num;
112553 + const_tree orig_fndecl;
112554 + struct cgraph_node *next_node = NULL;
112555 +
112556 + orig_fndecl = DECL_ORIGIN(missing_fn_head->fndecl);
112557 +
112558 + num = get_function_num(missing_fn_head->node, orig_fndecl);
112559 + if (num == CANNOT_FIND_ARG)
112560 + return cnodes;
112561 +
112562 + if (!is_missing_function(orig_fndecl, num))
112563 + return cnodes;
112564 +
112565 + next_node = cgraph_get_node(missing_fn_head->fndecl);
112566 + if (next_node && next_node->local.local)
112567 + cnodes = create_new_next_cgraph_nodes(cnodes, next_node, num);
112568 + return cnodes;
112569 +}
112570 +
112571 +/* Search for missing size_overflow attributes on the last nodes in ipa and collect them
112572 + * into the next_cgraph_node list. They will be the next interesting returns or callees.
112573 + */
112574 +static struct next_cgraph_node *search_overflow_attribute(struct next_cgraph_node *cnodes, struct interesting_node *cur_node)
112575 +{
112576 + unsigned int i;
112577 + tree node;
112578 + struct missing_functions *cur, *missing_fn_head = NULL;
112579 +
112580 +#if BUILDING_GCC_VERSION <= 4007
112581 + FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, node) {
112582 +#else
112583 + FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, node) {
112584 +#endif
112585 + switch (TREE_CODE(node)) {
112586 + case PARM_DECL:
112587 + if (TREE_CODE(TREE_TYPE(node)) != INTEGER_TYPE)
112588 + break;
112589 + case FUNCTION_DECL:
112590 + missing_fn_head = create_new_missing_function(missing_fn_head, node);
112591 + break;
112592 + default:
112593 + break;
112594 + }
112595 + }
112596 +
112597 + while (missing_fn_head) {
112598 + cnodes = check_missing_overflow_attribute_and_create_next_node(cnodes, missing_fn_head);
112599 +
112600 + cur = missing_fn_head->next;
112601 + free(missing_fn_head);
112602 + missing_fn_head = cur;
112603 + }
112604 +
112605 + return cnodes;
112606 +}
112607 +
112608 +static void walk_phi_set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree result)
112609 +{
112610 + gimple phi = get_def_stmt(result);
112611 + unsigned int i, n = gimple_phi_num_args(phi);
112612 +
112613 + pointer_set_insert(visited, phi);
112614 + for (i = 0; i < n; i++) {
112615 + const_tree arg = gimple_phi_arg_def(phi, i);
112616 +
112617 + set_conditions(visited, interesting_conditions, arg);
112618 + }
112619 +}
112620 +
112621 +enum conditions {
112622 + FROM_CONST, NOT_UNARY, CAST, RET, PHI
112623 +};
112624 +
112625 +// Search for constants, cast assignments and binary/ternary assignments
112626 +static void set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree lhs)
112627 +{
112628 + gimple def_stmt = get_def_stmt(lhs);
112629 +
112630 + if (is_gimple_constant(lhs)) {
112631 + interesting_conditions[FROM_CONST] = true;
112632 + return;
112633 + }
112634 +
112635 + if (!def_stmt)
112636 + return;
112637 +
112638 + if (pointer_set_contains(visited, def_stmt))
112639 + return;
112640 +
112641 + switch (gimple_code(def_stmt)) {
112642 + case GIMPLE_CALL:
112643 + if (lhs == gimple_return_retval(def_stmt))
112644 + interesting_conditions[RET] = true;
112645 + return;
112646 + case GIMPLE_NOP:
112647 + case GIMPLE_ASM:
112648 + return;
112649 + case GIMPLE_PHI:
112650 + interesting_conditions[PHI] = true;
112651 + return walk_phi_set_conditions(visited, interesting_conditions, lhs);
112652 + case GIMPLE_ASSIGN:
112653 + if (gimple_num_ops(def_stmt) == 2) {
112654 + const_tree rhs = gimple_assign_rhs1(def_stmt);
112655 +
112656 + if (gimple_assign_cast_p(def_stmt))
112657 + interesting_conditions[CAST] = true;
112658 +
112659 + return set_conditions(visited, interesting_conditions, rhs);
112660 + } else {
112661 + interesting_conditions[NOT_UNARY] = true;
112662 + return;
112663 + }
112664 + default:
112665 + debug_gimple_stmt(def_stmt);
112666 + gcc_unreachable();
112667 + }
112668 +}
112669 +
112670 +// determine whether duplication will be necessary or not.
112671 +static void search_interesting_conditions(struct interesting_node *cur_node, bool *interesting_conditions)
112672 +{
112673 + struct pointer_set_t *visited;
112674 +
112675 + if (gimple_assign_cast_p(cur_node->first_stmt))
112676 + interesting_conditions[CAST] = true;
112677 + else if (is_gimple_assign(cur_node->first_stmt) && gimple_num_ops(cur_node->first_stmt) > 2)
112678 + interesting_conditions[NOT_UNARY] = true;
112679 +
112680 + visited = pointer_set_create();
112681 + set_conditions(visited, interesting_conditions, cur_node->node);
112682 + pointer_set_destroy(visited);
112683 +}
112684 +
112685 +// Remove the size_overflow asm stmt and create an assignment from the input and output of the asm
112686 +static void replace_size_overflow_asm_with_assign(gimple asm_stmt, tree lhs, tree rhs)
112687 +{
112688 + gimple assign;
112689 + gimple_stmt_iterator gsi;
112690 +
112691 + // already removed
112692 + if (gimple_bb(asm_stmt) == NULL)
112693 + return;
112694 + gsi = gsi_for_stmt(asm_stmt);
112695 +
112696 + assign = gimple_build_assign(lhs, rhs);
112697 + gsi_insert_before(&gsi, assign, GSI_SAME_STMT);
112698 + SSA_NAME_DEF_STMT(lhs) = assign;
112699 +
112700 + gsi_remove(&gsi, true);
112701 +}
112702 +
112703 +/* Get the fndecl of an interesting stmt, the fndecl is the caller function if the interesting
112704 + * stmt is a return otherwise it is the callee function.
112705 + */
112706 +const_tree get_interesting_orig_fndecl(const_gimple stmt, unsigned int argnum)
112707 +{
112708 + const_tree fndecl;
112709 +
112710 + if (argnum == 0)
112711 + fndecl = current_function_decl;
112712 + else
112713 + fndecl = gimple_call_fndecl(stmt);
112714 +
112715 + if (fndecl == NULL_TREE)
112716 + return NULL_TREE;
112717 +
112718 + return DECL_ORIGIN(fndecl);
112719 +}
112720 +
112721 +// e.g., 3.8.2, 64, arch/x86/ia32/ia32_signal.c copy_siginfo_from_user32(): compat_ptr() u32 max
112722 +static bool skip_asm(const_tree arg)
112723 +{
112724 + gimple def_stmt = get_def_stmt(arg);
112725 +
112726 + if (!def_stmt || !gimple_assign_cast_p(def_stmt))
112727 + return false;
112728 +
112729 + def_stmt = get_def_stmt(gimple_assign_rhs1(def_stmt));
112730 + return def_stmt && gimple_code(def_stmt) == GIMPLE_ASM;
112731 +}
112732 +
112733 +static void walk_use_def_phi(struct pointer_set_t *visited, struct interesting_node *cur_node, tree result)
112734 +{
112735 + gimple phi = get_def_stmt(result);
112736 + unsigned int i, n = gimple_phi_num_args(phi);
112737 +
112738 + pointer_set_insert(visited, phi);
112739 + for (i = 0; i < n; i++) {
112740 + tree arg = gimple_phi_arg_def(phi, i);
112741 +
112742 + walk_use_def(visited, cur_node, arg);
112743 + }
112744 +}
112745 +
112746 +static void walk_use_def_binary(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs)
112747 +{
112748 + gimple def_stmt = get_def_stmt(lhs);
112749 + tree rhs1, rhs2;
112750 +
112751 + rhs1 = gimple_assign_rhs1(def_stmt);
112752 + rhs2 = gimple_assign_rhs2(def_stmt);
112753 +
112754 + walk_use_def(visited, cur_node, rhs1);
112755 + walk_use_def(visited, cur_node, rhs2);
112756 +}
112757 +
112758 +static void insert_last_node(struct interesting_node *cur_node, tree node)
112759 +{
112760 + unsigned int i;
112761 + tree element;
112762 + enum tree_code code;
112763 +
112764 + gcc_assert(node != NULL_TREE);
112765 +
112766 + if (is_gimple_constant(node))
112767 + return;
112768 +
112769 + code = TREE_CODE(node);
112770 + if (code == VAR_DECL) {
112771 + node = DECL_ORIGIN(node);
112772 + code = TREE_CODE(node);
112773 + }
112774 +
112775 + if (code != PARM_DECL && code != FUNCTION_DECL && code != COMPONENT_REF)
112776 + return;
112777 +
112778 +#if BUILDING_GCC_VERSION <= 4007
112779 + FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, element) {
112780 +#else
112781 + FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, element) {
112782 +#endif
112783 + if (operand_equal_p(node, element, 0))
112784 + return;
112785 + }
112786 +
112787 +#if BUILDING_GCC_VERSION <= 4007
112788 + gcc_assert(VEC_length(tree, cur_node->last_nodes) < VEC_LEN);
112789 + VEC_safe_push(tree, gc, cur_node->last_nodes, node);
112790 +#else
112791 + gcc_assert(cur_node->last_nodes->length() < VEC_LEN);
112792 + vec_safe_push(cur_node->last_nodes, node);
112793 +#endif
112794 +}
112795 +
112796 +// a size_overflow asm stmt in the control flow doesn't stop the recursion
112797 +static void handle_asm_stmt(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs, const_gimple stmt)
112798 +{
112799 + if (!is_size_overflow_asm(stmt))
112800 + walk_use_def(visited, cur_node, SSA_NAME_VAR(lhs));
112801 +}
112802 +
112803 +/* collect the parm_decls and fndecls (for checking a missing size_overflow attribute (ret or arg) or intentional_overflow)
112804 + * and component refs (for checking the intentional_overflow attribute).
112805 + */
112806 +static void walk_use_def(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs)
112807 +{
112808 + const_gimple def_stmt;
112809 +
112810 + if (TREE_CODE(lhs) != SSA_NAME) {
112811 + insert_last_node(cur_node, lhs);
112812 + return;
112813 + }
112814 +
112815 + def_stmt = get_def_stmt(lhs);
112816 + if (!def_stmt)
112817 + return;
112818 +
112819 + if (pointer_set_insert(visited, def_stmt))
112820 + return;
112821 +
112822 + switch (gimple_code(def_stmt)) {
112823 + case GIMPLE_NOP:
112824 + return walk_use_def(visited, cur_node, SSA_NAME_VAR(lhs));
112825 + case GIMPLE_ASM:
112826 + return handle_asm_stmt(visited, cur_node, lhs, def_stmt);
112827 + case GIMPLE_CALL: {
112828 + tree fndecl = gimple_call_fndecl(def_stmt);
112829 +
112830 + if (fndecl == NULL_TREE)
112831 + return;
112832 + insert_last_node(cur_node, fndecl);
112833 + return;
112834 + }
112835 + case GIMPLE_PHI:
112836 + return walk_use_def_phi(visited, cur_node, lhs);
112837 + case GIMPLE_ASSIGN:
112838 + switch (gimple_num_ops(def_stmt)) {
112839 + case 2:
112840 + return walk_use_def(visited, cur_node, gimple_assign_rhs1(def_stmt));
112841 + case 3:
112842 + return walk_use_def_binary(visited, cur_node, lhs);
112843 + }
112844 + default:
112845 + debug_gimple_stmt((gimple)def_stmt);
112846 + error("%s: unknown gimple code", __func__);
112847 + gcc_unreachable();
112848 + }
112849 +}
112850 +
112851 +// Collect all the last nodes for checking the intentional_overflow and size_overflow attributes
112852 +static void set_last_nodes(struct interesting_node *cur_node)
112853 +{
112854 + struct pointer_set_t *visited;
112855 +
112856 + visited = pointer_set_create();
112857 + walk_use_def(visited, cur_node, cur_node->node);
112858 + pointer_set_destroy(visited);
112859 +}
112860 +
112861 +enum precond {
112862 + NO_ATTRIBUTE_SEARCH, NO_CHECK_INSERT, NONE
112863 +};
112864 +
112865 +/* If there is a mark_turn_off intentional attribute on the caller or the callee then there is no duplication and missing size_overflow attribute check anywhere.
112866 + * There is only missing size_overflow attribute checking if the intentional_overflow attribute is the mark_no type.
112867 + * Stmt duplication is unnecessary if there are no binary/ternary assignements or if the unary assignment isn't a cast.
112868 + * It skips the possible error codes too.
112869 + */
112870 +static enum precond check_preconditions(struct interesting_node *cur_node)
112871 +{
112872 + bool interesting_conditions[5] = {false, false, false, false, false};
112873 +
112874 + set_last_nodes(cur_node);
112875 +
112876 + check_intentional_attribute_ipa(cur_node);
112877 + if (cur_node->intentional_attr_decl == MARK_TURN_OFF || cur_node->intentional_attr_cur_fndecl == MARK_TURN_OFF)
112878 + return NO_ATTRIBUTE_SEARCH;
112879 +
112880 + search_interesting_conditions(cur_node, interesting_conditions);
112881 +
112882 + // error code: a phi, unary assign (not cast) and returns only
112883 + if (!interesting_conditions[NOT_UNARY] && interesting_conditions[PHI] && interesting_conditions[RET] && !interesting_conditions[CAST])
112884 + return NO_ATTRIBUTE_SEARCH;
112885 +
112886 + // error code: def_stmts trace back to a constant and there are no binary/ternary assigments
112887 + if (interesting_conditions[CAST] && interesting_conditions[FROM_CONST] && !interesting_conditions[NOT_UNARY])
112888 + return NO_ATTRIBUTE_SEARCH;
112889 +
112890 + // unnecessary overflow check
112891 + if (!interesting_conditions[CAST] && !interesting_conditions[NOT_UNARY])
112892 + return NO_CHECK_INSERT;
112893 +
112894 + if (cur_node->intentional_attr_cur_fndecl != MARK_NO)
112895 + return NO_CHECK_INSERT;
112896 +
112897 + return NONE;
112898 +}
112899 +
112900 +static tree cast_to_orig_type(struct visited *visited, gimple stmt, const_tree orig_node, tree new_node)
112901 +{
112902 + const_gimple assign;
112903 + tree orig_type = TREE_TYPE(orig_node);
112904 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
112905 +
112906 + assign = build_cast_stmt(visited, orig_type, new_node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
112907 + return gimple_assign_lhs(assign);
112908 +}
112909 +
112910 +static void change_orig_node(struct visited *visited, struct interesting_node *cur_node, tree new_node)
112911 +{
112912 + void (*set_rhs)(gimple, tree);
112913 + gimple stmt = cur_node->first_stmt;
112914 + const_tree orig_node = cur_node->node;
112915 +
112916 + switch (gimple_code(stmt)) {
112917 + case GIMPLE_RETURN:
112918 + gimple_return_set_retval(stmt, cast_to_orig_type(visited, stmt, orig_node, new_node));
112919 + break;
112920 + case GIMPLE_CALL:
112921 + gimple_call_set_arg(stmt, cur_node->num - 1, cast_to_orig_type(visited, stmt, orig_node, new_node));
112922 + break;
112923 + case GIMPLE_ASSIGN:
112924 + switch (cur_node->num) {
112925 + case 1:
112926 + set_rhs = &gimple_assign_set_rhs1;
112927 + break;
112928 + case 2:
112929 + set_rhs = &gimple_assign_set_rhs2;
112930 + break;
112931 +#if BUILDING_GCC_VERSION >= 4006
112932 + case 3:
112933 + set_rhs = &gimple_assign_set_rhs3;
112934 + break;
112935 +#endif
112936 + default:
112937 + gcc_unreachable();
112938 + }
112939 +
112940 + set_rhs(stmt, cast_to_orig_type(visited, stmt, orig_node, new_node));
112941 + break;
112942 + default:
112943 + debug_gimple_stmt(stmt);
112944 + gcc_unreachable();
112945 + }
112946 +
112947 + update_stmt(stmt);
112948 +}
112949 +
112950 +static struct visited *create_visited(void)
112951 +{
112952 + struct visited *new_node;
112953 +
112954 + new_node = (struct visited *)xmalloc(sizeof(*new_node));
112955 + new_node->stmts = pointer_set_create();
112956 + new_node->my_stmts = pointer_set_create();
112957 + new_node->skip_expr_casts = pointer_set_create();
112958 + new_node->no_cast_check = pointer_set_create();
112959 + return new_node;
112960 +}
112961 +
112962 +static void free_visited(struct visited *visited)
112963 +{
112964 + pointer_set_destroy(visited->stmts);
112965 + pointer_set_destroy(visited->my_stmts);
112966 + pointer_set_destroy(visited->skip_expr_casts);
112967 + pointer_set_destroy(visited->no_cast_check);
112968 +
112969 + free(visited);
112970 +}
112971 +
112972 +/* This function calls the main recursion function (expand) that duplicates the stmts. Before that it checks the intentional_overflow attribute and asm stmts,
112973 + * it decides whether the duplication is necessary or not and it searches for missing size_overflow attributes. After expand() it changes the orig node to the duplicated node
112974 + * in the original stmt (first stmt) and it inserts the overflow check for the arg of the callee or for the return value.
112975 + */
112976 +static struct next_cgraph_node *handle_interesting_stmt(struct visited *visited, struct next_cgraph_node *cnodes, struct interesting_node *cur_node, struct cgraph_node *caller_node)
112977 +{
112978 + enum precond ret;
112979 + tree new_node, orig_node = cur_node->node;
112980 +
112981 + ret = check_preconditions(cur_node);
112982 + if (ret == NO_ATTRIBUTE_SEARCH)
112983 + return cnodes;
112984 +
112985 + cnodes = search_overflow_attribute(cnodes, cur_node);
112986 +
112987 + if (ret == NO_CHECK_INSERT)
112988 + return cnodes;
112989 +
112990 + new_node = expand(visited, caller_node, orig_node);
112991 + if (new_node == NULL_TREE)
112992 + return cnodes;
112993 +
112994 + change_orig_node(visited, cur_node, new_node);
112995 + check_size_overflow(caller_node, cur_node->first_stmt, TREE_TYPE(new_node), new_node, orig_node, BEFORE_STMT);
112996 +
112997 + return cnodes;
112998 +}
112999 +
113000 +// Check visited_fns interesting nodes.
113001 +static bool is_in_interesting_node(struct interesting_node *head, const_gimple first_stmt, const_tree node, unsigned int num)
113002 +{
113003 + struct interesting_node *cur;
113004 +
113005 + for (cur = head; cur; cur = cur->next) {
113006 + if (!operand_equal_p(node, cur->node, 0))
113007 + continue;
113008 + if (num != cur->num)
113009 + continue;
113010 + if (first_stmt == cur->first_stmt)
113011 + return true;
113012 + }
113013 + return false;
113014 +}
113015 +
113016 +/* Create an interesting node. The ipa pass starts to duplicate from these stmts.
113017 + first_stmt: it is the call or assignment or ret stmt, change_orig_node() will change the original node (retval, or function arg) in this
113018 + last_nodes: they are the last stmts in the recursion (they haven't a def_stmt). They are useful in the missing size_overflow attribute check and
113019 + the intentional_overflow attribute check. They are collected by set_last_nodes().
113020 + num: arg count of a call stmt or 0 when it is a ret
113021 + node: the recursion starts from here, it is a call arg or a return value
113022 + fndecl: the fndecl of the interesting node when the node is an arg. it is the fndecl of the callee function otherwise it is the fndecl of the caller (current_function_fndecl) function.
113023 + intentional_attr_decl: intentional_overflow attribute of the callee function
113024 + intentional_attr_cur_fndecl: intentional_overflow attribute of the caller function
113025 + intentional_mark_from_gimple: the intentional overflow type of size_overflow asm stmt from gimple if it exists
113026 + */
113027 +static struct interesting_node *create_new_interesting_node(struct interesting_node *head, gimple first_stmt, tree node, unsigned int num, gimple asm_stmt)
113028 +{
113029 + struct interesting_node *new_node;
113030 + tree fndecl;
113031 + enum gimple_code code;
113032 +
113033 + gcc_assert(node != NULL_TREE);
113034 + code = gimple_code(first_stmt);
113035 + gcc_assert(code == GIMPLE_CALL || code == GIMPLE_ASM || code == GIMPLE_ASSIGN || code == GIMPLE_RETURN);
113036 +
113037 + if (num == CANNOT_FIND_ARG)
113038 + return head;
113039 +
113040 + if (skip_types(node))
113041 + return head;
113042 +
113043 + if (skip_asm(node))
113044 + return head;
113045 +
113046 + if (is_gimple_call(first_stmt))
113047 + fndecl = gimple_call_fndecl(first_stmt);
113048 + else
113049 + fndecl = current_function_decl;
113050 +
113051 + if (fndecl == NULL_TREE)
113052 + return head;
113053 +
113054 + if (is_in_interesting_node(head, first_stmt, node, num))
113055 + return head;
113056 +
113057 + new_node = (struct interesting_node *)xmalloc(sizeof(*new_node));
113058 +
113059 + new_node->next = NULL;
113060 + new_node->first_stmt = first_stmt;
113061 +#if BUILDING_GCC_VERSION <= 4007
113062 + new_node->last_nodes = VEC_alloc(tree, gc, VEC_LEN);
113063 +#else
113064 + vec_alloc(new_node->last_nodes, VEC_LEN);
113065 +#endif
113066 + new_node->num = num;
113067 + new_node->node = node;
113068 + new_node->fndecl = fndecl;
113069 + new_node->intentional_attr_decl = MARK_NO;
113070 + new_node->intentional_attr_cur_fndecl = MARK_NO;
113071 + new_node->intentional_mark_from_gimple = asm_stmt;
113072 +
113073 + if (!head)
113074 + return new_node;
113075 +
113076 + new_node->next = head;
113077 + return new_node;
113078 +}
113079 +
113080 +/* Check the ret stmts in the functions on the next cgraph node list (these functions will be in the hash table and they are reachable from ipa).
113081 + * If the ret stmt is in the next cgraph node list then it's an interesting ret.
113082 + */
113083 +static struct interesting_node *handle_stmt_by_cgraph_nodes_ret(struct interesting_node *head, gimple stmt, struct next_cgraph_node *next_node)
113084 +{
113085 + struct next_cgraph_node *cur_node;
113086 + tree ret = gimple_return_retval(stmt);
113087 +
113088 + if (ret == NULL_TREE)
113089 + return head;
113090 +
113091 + for (cur_node = next_node; cur_node; cur_node = cur_node->next) {
113092 + if (!operand_equal_p(cur_node->callee_fndecl, DECL_ORIGIN(current_function_decl), 0))
113093 + continue;
113094 + if (cur_node->num == 0)
113095 + head = create_new_interesting_node(head, stmt, ret, 0, NOT_INTENTIONAL_ASM);
113096 + }
113097 +
113098 + return head;
113099 +}
113100 +
113101 +/* Check the call stmts in the functions on the next cgraph node list (these functions will be in the hash table and they are reachable from ipa).
113102 + * If the call stmt is in the next cgraph node list then it's an interesting call.
113103 + */
113104 +static struct interesting_node *handle_stmt_by_cgraph_nodes_call(struct interesting_node *head, gimple stmt, struct next_cgraph_node *next_node)
113105 +{
113106 + unsigned int argnum;
113107 + tree arg;
113108 + const_tree fndecl;
113109 + struct next_cgraph_node *cur_node;
113110 +
113111 + fndecl = gimple_call_fndecl(stmt);
113112 + if (fndecl == NULL_TREE)
113113 + return head;
113114 +
113115 + for (cur_node = next_node; cur_node; cur_node = cur_node->next) {
113116 + if (!operand_equal_p(cur_node->callee_fndecl, fndecl, 0))
113117 + continue;
113118 + argnum = get_correct_arg_count(cur_node->num, fndecl);
113119 + gcc_assert(argnum != CANNOT_FIND_ARG);
113120 + if (argnum == 0)
113121 + continue;
113122 +
113123 + arg = gimple_call_arg(stmt, argnum - 1);
113124 + head = create_new_interesting_node(head, stmt, arg, argnum, NOT_INTENTIONAL_ASM);
113125 + }
113126 +
113127 + return head;
113128 +}
113129 +
113130 +static unsigned int check_ops(const_tree orig_node, const_tree node, unsigned int ret_count)
113131 +{
113132 + if (!operand_equal_p(orig_node, node, 0))
113133 + return WRONG_NODE;
113134 + if (skip_types(node))
113135 + return WRONG_NODE;
113136 + return ret_count;
113137 +}
113138 +
113139 +// Get the index of the rhs node in an assignment
113140 +static unsigned int get_assign_ops_count(const_gimple stmt, tree node)
113141 +{
113142 + const_tree rhs1, rhs2;
113143 + unsigned int ret;
113144 +
113145 + gcc_assert(stmt);
113146 + gcc_assert(is_gimple_assign(stmt));
113147 +
113148 + rhs1 = gimple_assign_rhs1(stmt);
113149 + gcc_assert(rhs1 != NULL_TREE);
113150 +
113151 + switch (gimple_num_ops(stmt)) {
113152 + case 2:
113153 + return check_ops(node, rhs1, 1);
113154 + case 3:
113155 + ret = check_ops(node, rhs1, 1);
113156 + if (ret != WRONG_NODE)
113157 + return ret;
113158 +
113159 + rhs2 = gimple_assign_rhs2(stmt);
113160 + gcc_assert(rhs2 != NULL_TREE);
113161 + return check_ops(node, rhs2, 2);
113162 + default:
113163 + gcc_unreachable();
113164 + }
113165 +}
113166 +
113167 +// Find the correct arg number of a call stmt. It is needed when the interesting function is a cloned function.
113168 +static unsigned int find_arg_number_gimple(const_tree arg, const_gimple stmt)
113169 +{
113170 + unsigned int i;
113171 +
113172 + if (gimple_call_fndecl(stmt) == NULL_TREE)
113173 + return CANNOT_FIND_ARG;
113174 +
113175 + for (i = 0; i < gimple_call_num_args(stmt); i++) {
113176 + tree node;
113177 +
113178 + node = gimple_call_arg(stmt, i);
113179 + if (!operand_equal_p(arg, node, 0))
113180 + continue;
113181 + if (!skip_types(node))
113182 + return i + 1;
113183 + }
113184 +
113185 + return CANNOT_FIND_ARG;
113186 +}
113187 +
113188 +/* starting from the size_overflow asm stmt collect interesting stmts. They can be
113189 + * any of return, call or assignment stmts (because of inlining).
113190 + */
113191 +static struct interesting_node *get_interesting_ret_or_call(struct pointer_set_t *visited, struct interesting_node *head, tree node, gimple intentional_asm)
113192 +{
113193 + use_operand_p use_p;
113194 + imm_use_iterator imm_iter;
113195 + unsigned int argnum;
113196 +
113197 + gcc_assert(TREE_CODE(node) == SSA_NAME);
113198 +
113199 + if (pointer_set_insert(visited, node))
113200 + return head;
113201 +
113202 + FOR_EACH_IMM_USE_FAST(use_p, imm_iter, node) {
113203 + gimple stmt = USE_STMT(use_p);
113204 +
113205 + if (stmt == NULL)
113206 + return head;
113207 + if (is_gimple_debug(stmt))
113208 + continue;
113209 +
113210 + switch (gimple_code(stmt)) {
113211 + case GIMPLE_CALL:
113212 + argnum = find_arg_number_gimple(node, stmt);
113213 + head = create_new_interesting_node(head, stmt, node, argnum, intentional_asm);
113214 + break;
113215 + case GIMPLE_RETURN:
113216 + head = create_new_interesting_node(head, stmt, node, 0, intentional_asm);
113217 + break;
113218 + case GIMPLE_ASSIGN:
113219 + argnum = get_assign_ops_count(stmt, node);
113220 + head = create_new_interesting_node(head, stmt, node, argnum, intentional_asm);
113221 + break;
113222 + case GIMPLE_PHI: {
113223 + tree result = gimple_phi_result(stmt);
113224 + head = get_interesting_ret_or_call(visited, head, result, intentional_asm);
113225 + break;
113226 + }
113227 + case GIMPLE_ASM:
113228 + if (gimple_asm_noutputs(stmt) != 0)
113229 + break;
113230 + if (!is_size_overflow_asm(stmt))
113231 + break;
113232 + head = create_new_interesting_node(head, stmt, node, 1, intentional_asm);
113233 + break;
113234 + case GIMPLE_COND:
113235 + case GIMPLE_SWITCH:
113236 + break;
113237 + default:
113238 + debug_gimple_stmt(stmt);
113239 + gcc_unreachable();
113240 + break;
113241 + }
113242 + }
113243 + return head;
113244 +}
113245 +
113246 +static void remove_size_overflow_asm(gimple stmt)
113247 +{
113248 + gimple_stmt_iterator gsi;
113249 + tree input, output;
113250 +
113251 + if (!is_size_overflow_asm(stmt))
113252 + return;
113253 +
113254 + if (gimple_asm_noutputs(stmt) == 0) {
113255 + gsi = gsi_for_stmt(stmt);
113256 + ipa_remove_stmt_references(cgraph_get_create_node(current_function_decl), stmt);
113257 + gsi_remove(&gsi, true);
113258 + return;
113259 + }
113260 +
113261 + input = gimple_asm_input_op(stmt, 0);
113262 + output = gimple_asm_output_op(stmt, 0);
113263 + replace_size_overflow_asm_with_assign(stmt, TREE_VALUE(output), TREE_VALUE(input));
113264 +}
113265 +
113266 +/* handle the size_overflow asm stmts from the gimple pass and collect the interesting stmts.
113267 + * If the asm stmt is a parm_decl kind (noutputs == 0) then remove it.
113268 + * If it is a simple asm stmt then replace it with an assignment from the asm input to the asm output.
113269 + */
113270 +static struct interesting_node *handle_stmt_by_size_overflow_asm(gimple stmt, struct interesting_node *head)
113271 +{
113272 + const_tree output;
113273 + struct pointer_set_t *visited;
113274 + gimple intentional_asm = NOT_INTENTIONAL_ASM;
113275 +
113276 + if (!is_size_overflow_asm(stmt))
113277 + return head;
113278 +
113279 + if (is_size_overflow_intentional_asm_yes(stmt) || is_size_overflow_intentional_asm_turn_off(stmt))
113280 + intentional_asm = stmt;
113281 +
113282 + gcc_assert(gimple_asm_ninputs(stmt) == 1);
113283 +
113284 + if (gimple_asm_noutputs(stmt) == 0 && is_size_overflow_intentional_asm_turn_off(stmt))
113285 + return head;
113286 +
113287 + if (gimple_asm_noutputs(stmt) == 0) {
113288 + const_tree input;
113289 +
113290 + if (!is_size_overflow_intentional_asm_turn_off(stmt))
113291 + return head;
113292 +
113293 + input = gimple_asm_input_op(stmt, 0);
113294 + remove_size_overflow_asm(stmt);
113295 + if (is_gimple_constant(TREE_VALUE(input)))
113296 + return head;
113297 + visited = pointer_set_create();
113298 + head = get_interesting_ret_or_call(visited, head, TREE_VALUE(input), intentional_asm);
113299 + pointer_set_destroy(visited);
113300 + return head;
113301 + }
113302 +
113303 + if (!is_size_overflow_intentional_asm_yes(stmt) && !is_size_overflow_intentional_asm_turn_off(stmt))
113304 + remove_size_overflow_asm(stmt);
113305 +
113306 + visited = pointer_set_create();
113307 + output = gimple_asm_output_op(stmt, 0);
113308 + head = get_interesting_ret_or_call(visited, head, TREE_VALUE(output), intentional_asm);
113309 + pointer_set_destroy(visited);
113310 + return head;
113311 +}
113312 +
113313 +/* Iterate over all the stmts of a function and look for the size_overflow asm stmts (they were created in the gimple pass)
113314 + * or a call stmt or a return stmt and store them in the interesting_node list
113315 + */
113316 +static struct interesting_node *collect_interesting_stmts(struct next_cgraph_node *next_node)
113317 +{
113318 + basic_block bb;
113319 + struct interesting_node *head = NULL;
113320 +
113321 + FOR_ALL_BB_FN(bb, cfun) {
113322 + gimple_stmt_iterator gsi;
113323 +
113324 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
113325 + enum gimple_code code;
113326 + gimple stmt = gsi_stmt(gsi);
113327 +
113328 + code = gimple_code(stmt);
113329 +
113330 + if (code == GIMPLE_ASM)
113331 + head = handle_stmt_by_size_overflow_asm(stmt, head);
113332 +
113333 + if (!next_node)
113334 + continue;
113335 + if (code == GIMPLE_CALL)
113336 + head = handle_stmt_by_cgraph_nodes_call(head, stmt, next_node);
113337 + if (code == GIMPLE_RETURN)
113338 + head = handle_stmt_by_cgraph_nodes_ret(head, stmt, next_node);
113339 + }
113340 + }
113341 + return head;
113342 +}
113343 +
113344 +static void free_interesting_node(struct interesting_node *head)
113345 +{
113346 + struct interesting_node *cur;
113347 +
113348 + while (head) {
113349 + cur = head->next;
113350 +#if BUILDING_GCC_VERSION <= 4007
113351 + VEC_free(tree, gc, head->last_nodes);
113352 +#else
113353 + vec_free(head->last_nodes);
113354 +#endif
113355 + free(head);
113356 + head = cur;
113357 + }
113358 +}
113359 +
113360 +static struct visited_fns *insert_visited_fns_function(struct visited_fns *head, struct interesting_node *cur_node)
113361 +{
113362 + struct visited_fns *new_visited_fns;
113363 +
113364 + new_visited_fns = (struct visited_fns *)xmalloc(sizeof(*new_visited_fns));
113365 + new_visited_fns->fndecl = cur_node->fndecl;
113366 + new_visited_fns->num = cur_node->num;
113367 + new_visited_fns->first_stmt = cur_node->first_stmt;
113368 + new_visited_fns->next = NULL;
113369 +
113370 + if (!head)
113371 + return new_visited_fns;
113372 +
113373 + new_visited_fns->next = head;
113374 + return new_visited_fns;
113375 +}
113376 +
113377 +/* Check whether the function was already visited_fns. If the fndecl, the arg count of the fndecl and the first_stmt (call or return) are same then
113378 + * it is a visited_fns function.
113379 + */
113380 +static bool is_visited_fns_function(struct visited_fns *head, struct interesting_node *cur_node)
113381 +{
113382 + struct visited_fns *cur;
113383 +
113384 + if (!head)
113385 + return false;
113386 +
113387 + for (cur = head; cur; cur = cur->next) {
113388 + if (cur_node->first_stmt != cur->first_stmt)
113389 + continue;
113390 + if (!operand_equal_p(cur_node->fndecl, cur->fndecl, 0))
113391 + continue;
113392 + if (cur_node->num == cur->num)
113393 + return true;
113394 + }
113395 + return false;
113396 +}
113397 +
113398 +static void free_next_cgraph_node(struct next_cgraph_node *head)
113399 +{
113400 + struct next_cgraph_node *cur;
113401 +
113402 + while (head) {
113403 + cur = head->next;
113404 + free(head);
113405 + head = cur;
113406 + }
113407 +}
113408 +
113409 +static void remove_all_size_overflow_asm(void)
113410 +{
113411 + basic_block bb;
113412 +
113413 + FOR_ALL_BB_FN(bb, cfun) {
113414 + gimple_stmt_iterator si;
113415 +
113416 + for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
113417 + remove_size_overflow_asm(gsi_stmt(si));
113418 + }
113419 +}
113420 +
113421 +/* Main recursive walk of the ipa pass: iterate over the collected interesting stmts in a function
113422 + * (they are interesting if they have an associated size_overflow asm stmt) and recursively walk
113423 + * the newly collected interesting functions (they are interesting if there is control flow between
113424 + * the interesting stmts and them).
113425 + */
113426 +static struct visited_fns *handle_function(struct cgraph_node *node, struct next_cgraph_node *next_node, struct visited_fns *visited_fns)
113427 +{
113428 + struct visited *visited;
113429 + struct interesting_node *head, *cur_node;
113430 + struct next_cgraph_node *cur_cnodes, *cnodes_head = NULL;
113431 +
113432 + set_current_function_decl(NODE_DECL(node));
113433 + call_count = 0;
113434 +
113435 + head = collect_interesting_stmts(next_node);
113436 +
113437 + visited = create_visited();
113438 + for (cur_node = head; cur_node; cur_node = cur_node->next) {
113439 + if (is_visited_fns_function(visited_fns, cur_node))
113440 + continue;
113441 + cnodes_head = handle_interesting_stmt(visited, cnodes_head, cur_node, node);
113442 + visited_fns = insert_visited_fns_function(visited_fns, cur_node);
113443 + }
113444 +
113445 + free_visited(visited);
113446 + free_interesting_node(head);
113447 + remove_all_size_overflow_asm();
113448 + unset_current_function_decl();
113449 +
113450 + for (cur_cnodes = cnodes_head; cur_cnodes; cur_cnodes = cur_cnodes->next)
113451 + visited_fns = handle_function(cur_cnodes->current_function, cur_cnodes, visited_fns);
113452 +
113453 + free_next_cgraph_node(cnodes_head);
113454 + return visited_fns;
113455 +}
113456 +
113457 +static void free_visited_fns(struct visited_fns *head)
113458 +{
113459 + struct visited_fns *cur;
113460 +
113461 + while (head) {
113462 + cur = head->next;
113463 + free(head);
113464 + head = cur;
113465 + }
113466 +}
113467 +
113468 +// Main entry point of the ipa pass: erases the plf flag of all stmts and iterates over all the functions
113469 +unsigned int search_function(void)
113470 +{
113471 + struct cgraph_node *node;
113472 + struct visited_fns *visited_fns = NULL;
113473 +
113474 + FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) {
113475 + gcc_assert(cgraph_function_flags_ready);
113476 +#if BUILDING_GCC_VERSION <= 4007
113477 + gcc_assert(node->reachable);
113478 +#endif
113479 +
113480 + visited_fns = handle_function(node, NULL, visited_fns);
113481 + }
113482 +
113483 + free_visited_fns(visited_fns);
113484 + return 0;
113485 +}
113486 +
113487 +#if BUILDING_GCC_VERSION >= 4009
113488 +static const struct pass_data insert_size_overflow_check_data = {
113489 +#else
113490 +static struct ipa_opt_pass_d insert_size_overflow_check = {
113491 + .pass = {
113492 +#endif
113493 + .type = SIMPLE_IPA_PASS,
113494 + .name = "size_overflow",
113495 +#if BUILDING_GCC_VERSION >= 4008
113496 + .optinfo_flags = OPTGROUP_NONE,
113497 +#endif
113498 +#if BUILDING_GCC_VERSION >= 4009
113499 + .has_gate = false,
113500 + .has_execute = true,
113501 +#else
113502 + .gate = NULL,
113503 + .execute = search_function,
113504 + .sub = NULL,
113505 + .next = NULL,
113506 + .static_pass_number = 0,
113507 +#endif
113508 + .tv_id = TV_NONE,
113509 + .properties_required = 0,
113510 + .properties_provided = 0,
113511 + .properties_destroyed = 0,
113512 + .todo_flags_start = 0,
113513 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_remove_unused_locals | TODO_ggc_collect | TODO_verify_flow | TODO_dump_cgraph | TODO_dump_func | TODO_update_ssa_no_phi,
113514 +#if BUILDING_GCC_VERSION < 4009
113515 + },
113516 + .generate_summary = NULL,
113517 + .write_summary = NULL,
113518 + .read_summary = NULL,
113519 +#if BUILDING_GCC_VERSION >= 4006
113520 + .write_optimization_summary = NULL,
113521 + .read_optimization_summary = NULL,
113522 +#endif
113523 + .stmt_fixup = NULL,
113524 + .function_transform_todo_flags_start = 0,
113525 + .function_transform = NULL,
113526 + .variable_transform = NULL,
113527 +#endif
113528 +};
113529 +
113530 +#if BUILDING_GCC_VERSION >= 4009
113531 +namespace {
113532 +class insert_size_overflow_check : public ipa_opt_pass_d {
113533 +public:
113534 + insert_size_overflow_check() : ipa_opt_pass_d(insert_size_overflow_check_data, g, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL) {}
113535 + unsigned int execute() { return search_function(); }
113536 +};
113537 +}
113538 +#endif
113539 +
113540 +struct opt_pass *make_insert_size_overflow_check(void)
113541 +{
113542 +#if BUILDING_GCC_VERSION >= 4009
113543 + return new insert_size_overflow_check();
113544 +#else
113545 + return &insert_size_overflow_check.pass;
113546 +#endif
113547 +}
113548 +
113549 diff --git a/tools/gcc/size_overflow_plugin/intentional_overflow.c b/tools/gcc/size_overflow_plugin/intentional_overflow.c
113550 new file mode 100644
113551 index 0000000..38904bc
113552 --- /dev/null
113553 +++ b/tools/gcc/size_overflow_plugin/intentional_overflow.c
113554 @@ -0,0 +1,733 @@
113555 +/*
113556 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
113557 + * Licensed under the GPL v2, or (at your option) v3
113558 + *
113559 + * Homepage:
113560 + * http://www.grsecurity.net/~ephox/overflow_plugin/
113561 + *
113562 + * Documentation:
113563 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
113564 + *
113565 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
113566 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
113567 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
113568 + *
113569 + * Usage:
113570 + * $ make
113571 + * $ make run
113572 + */
113573 +
113574 +#include "gcc-common.h"
113575 +#include "size_overflow.h"
113576 +
113577 +/* Get the param of the intentional_overflow attribute.
113578 + * * 0: MARK_NOT_INTENTIONAL
113579 + * * 1..MAX_PARAM: MARK_YES
113580 + * * -1: MARK_TURN_OFF
113581 + */
113582 +static tree get_attribute_param(const_tree decl)
113583 +{
113584 + const_tree attr;
113585 +
113586 + if (decl == NULL_TREE)
113587 + return NULL_TREE;
113588 +
113589 + attr = lookup_attribute("intentional_overflow", DECL_ATTRIBUTES(decl));
113590 + if (!attr || !TREE_VALUE(attr))
113591 + return NULL_TREE;
113592 +
113593 + return TREE_VALUE(attr);
113594 +}
113595 +
113596 +// MARK_TURN_OFF
113597 +bool is_turn_off_intentional_attr(const_tree decl)
113598 +{
113599 + const_tree param_head;
113600 +
113601 + param_head = get_attribute_param(decl);
113602 + if (param_head == NULL_TREE)
113603 + return false;
113604 +
113605 + if (TREE_INT_CST_HIGH(TREE_VALUE(param_head)) == -1)
113606 + return true;
113607 + return false;
113608 +}
113609 +
113610 +// MARK_NOT_INTENTIONAL
113611 +bool is_end_intentional_intentional_attr(const_tree decl, unsigned int argnum)
113612 +{
113613 + const_tree param_head;
113614 +
113615 + if (argnum == 0)
113616 + return false;
113617 +
113618 + param_head = get_attribute_param(decl);
113619 + if (param_head == NULL_TREE)
113620 + return false;
113621 +
113622 + if (!TREE_INT_CST_LOW(TREE_VALUE(param_head)))
113623 + return true;
113624 + return false;
113625 +}
113626 +
113627 +// MARK_YES
113628 +bool is_yes_intentional_attr(const_tree decl, unsigned int argnum)
113629 +{
113630 + tree param, param_head;
113631 +
113632 + if (argnum == 0)
113633 + return false;
113634 +
113635 + param_head = get_attribute_param(decl);
113636 + for (param = param_head; param; param = TREE_CHAIN(param))
113637 + if (argnum == TREE_INT_CST_LOW(TREE_VALUE(param)))
113638 + return true;
113639 + return false;
113640 +}
113641 +
113642 +void print_missing_intentional(enum mark callee_attr, enum mark caller_attr, const_tree decl, unsigned int argnum)
113643 +{
113644 + location_t loc;
113645 +
113646 + if (caller_attr == MARK_NO || caller_attr == MARK_NOT_INTENTIONAL || caller_attr == MARK_TURN_OFF)
113647 + return;
113648 +
113649 + if (callee_attr == MARK_NOT_INTENTIONAL || callee_attr == MARK_YES)
113650 + return;
113651 +
113652 + loc = DECL_SOURCE_LOCATION(decl);
113653 + inform(loc, "The intentional_overflow attribute is missing from +%s+%u+", DECL_NAME_POINTER(decl), argnum);
113654 +}
113655 +
113656 +// Get the field decl of a component ref for intentional_overflow checking
113657 +static const_tree search_field_decl(const_tree comp_ref)
113658 +{
113659 + const_tree field = NULL_TREE;
113660 + unsigned int i, len = TREE_OPERAND_LENGTH(comp_ref);
113661 +
113662 + for (i = 0; i < len; i++) {
113663 + field = TREE_OPERAND(comp_ref, i);
113664 + if (TREE_CODE(field) == FIELD_DECL)
113665 + break;
113666 + }
113667 + gcc_assert(TREE_CODE(field) == FIELD_DECL);
113668 + return field;
113669 +}
113670 +
113671 +/* Get the type of the intentional_overflow attribute of a node
113672 + * * MARK_TURN_OFF
113673 + * * MARK_YES
113674 + * * MARK_NO
113675 + * * MARK_NOT_INTENTIONAL
113676 + */
113677 +enum mark get_intentional_attr_type(const_tree node)
113678 +{
113679 + const_tree cur_decl;
113680 +
113681 + if (node == NULL_TREE)
113682 + return MARK_NO;
113683 +
113684 + switch (TREE_CODE(node)) {
113685 + case COMPONENT_REF:
113686 + cur_decl = search_field_decl(node);
113687 + if (is_turn_off_intentional_attr(cur_decl))
113688 + return MARK_TURN_OFF;
113689 + if (is_end_intentional_intentional_attr(cur_decl, 1))
113690 + return MARK_YES;
113691 + break;
113692 + case PARM_DECL: {
113693 + unsigned int argnum;
113694 +
113695 + cur_decl = DECL_ORIGIN(current_function_decl);
113696 + argnum = find_arg_number_tree(node, cur_decl);
113697 + if (argnum == CANNOT_FIND_ARG)
113698 + return MARK_NO;
113699 + if (is_yes_intentional_attr(cur_decl, argnum))
113700 + return MARK_YES;
113701 + if (is_end_intentional_intentional_attr(cur_decl, argnum))
113702 + return MARK_NOT_INTENTIONAL;
113703 + break;
113704 + }
113705 + case FUNCTION_DECL:
113706 + if (is_turn_off_intentional_attr(DECL_ORIGIN(node)))
113707 + return MARK_TURN_OFF;
113708 + break;
113709 + default:
113710 + break;
113711 + }
113712 + return MARK_NO;
113713 +}
113714 +
113715 +// Search for the intentional_overflow attribute on the last nodes
113716 +static enum mark search_last_nodes_intentional(struct interesting_node *cur_node)
113717 +{
113718 + unsigned int i;
113719 + tree last_node;
113720 + enum mark mark = MARK_NO;
113721 +
113722 +#if BUILDING_GCC_VERSION <= 4007
113723 + FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, last_node) {
113724 +#else
113725 + FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, last_node) {
113726 +#endif
113727 + mark = get_intentional_attr_type(last_node);
113728 + if (mark != MARK_NO)
113729 + break;
113730 + }
113731 + return mark;
113732 +}
113733 +
113734 +/* Check the intentional kind of size_overflow asm stmt (created by the gimple pass) and
113735 + * set the appropriate intentional_overflow type. Delete the asm stmt in the end.
113736 + */
113737 +static bool is_intentional_attribute_from_gimple(struct interesting_node *cur_node)
113738 +{
113739 + if (!cur_node->intentional_mark_from_gimple)
113740 + return false;
113741 +
113742 + if (is_size_overflow_intentional_asm_yes(cur_node->intentional_mark_from_gimple))
113743 + cur_node->intentional_attr_cur_fndecl = MARK_YES;
113744 + else
113745 + cur_node->intentional_attr_cur_fndecl = MARK_TURN_OFF;
113746 +
113747 + // skip param decls
113748 + if (gimple_asm_noutputs(cur_node->intentional_mark_from_gimple) == 0)
113749 + return true;
113750 + return true;
113751 +}
113752 +
113753 +/* Search intentional_overflow attribute on caller and on callee too.
113754 + * 0</MARK_YES: no dup, search size_overflow and intentional_overflow attributes
113755 + * 0/MARK_NOT_INTENTIONAL: no dup, search size_overflow attribute (int)
113756 + * -1/MARK_TURN_OFF: no dup, no search, current_function_decl -> no dup
113757 +*/
113758 +void check_intentional_attribute_ipa(struct interesting_node *cur_node)
113759 +{
113760 + const_tree fndecl;
113761 +
113762 + if (is_intentional_attribute_from_gimple(cur_node))
113763 + return;
113764 +
113765 + if (is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl))) {
113766 + cur_node->intentional_attr_cur_fndecl = MARK_TURN_OFF;
113767 + return;
113768 + }
113769 +
113770 + if (gimple_code(cur_node->first_stmt) == GIMPLE_ASM) {
113771 + cur_node->intentional_attr_cur_fndecl = MARK_NOT_INTENTIONAL;
113772 + return;
113773 + }
113774 +
113775 + if (gimple_code(cur_node->first_stmt) == GIMPLE_ASSIGN)
113776 + return;
113777 +
113778 + fndecl = get_interesting_orig_fndecl(cur_node->first_stmt, cur_node->num);
113779 + if (is_turn_off_intentional_attr(fndecl)) {
113780 + cur_node->intentional_attr_decl = MARK_TURN_OFF;
113781 + return;
113782 + }
113783 +
113784 + if (is_end_intentional_intentional_attr(fndecl, cur_node->num))
113785 + cur_node->intentional_attr_decl = MARK_NOT_INTENTIONAL;
113786 + else if (is_yes_intentional_attr(fndecl, cur_node->num))
113787 + cur_node->intentional_attr_decl = MARK_YES;
113788 +
113789 + cur_node->intentional_attr_cur_fndecl = search_last_nodes_intentional(cur_node);
113790 + print_missing_intentional(cur_node->intentional_attr_decl, cur_node->intentional_attr_cur_fndecl, cur_node->fndecl, cur_node->num);
113791 +}
113792 +
113793 +bool is_a_cast_and_const_overflow(const_tree no_const_rhs)
113794 +{
113795 + const_tree rhs1, lhs, rhs1_type, lhs_type;
113796 + enum machine_mode lhs_mode, rhs_mode;
113797 + gimple def_stmt = get_def_stmt(no_const_rhs);
113798 +
113799 + if (!def_stmt || !gimple_assign_cast_p(def_stmt))
113800 + return false;
113801 +
113802 + rhs1 = gimple_assign_rhs1(def_stmt);
113803 + lhs = gimple_assign_lhs(def_stmt);
113804 + rhs1_type = TREE_TYPE(rhs1);
113805 + lhs_type = TREE_TYPE(lhs);
113806 + rhs_mode = TYPE_MODE(rhs1_type);
113807 + lhs_mode = TYPE_MODE(lhs_type);
113808 + if (TYPE_UNSIGNED(lhs_type) == TYPE_UNSIGNED(rhs1_type) || lhs_mode != rhs_mode)
113809 + return false;
113810 +
113811 + return true;
113812 +}
113813 +
113814 +static unsigned int uses_num(tree node)
113815 +{
113816 + imm_use_iterator imm_iter;
113817 + use_operand_p use_p;
113818 + unsigned int num = 0;
113819 +
113820 + FOR_EACH_IMM_USE_FAST(use_p, imm_iter, node) {
113821 + gimple use_stmt = USE_STMT(use_p);
113822 +
113823 + if (use_stmt == NULL)
113824 + return num;
113825 + if (is_gimple_debug(use_stmt))
113826 + continue;
113827 + if (gimple_assign_cast_p(use_stmt) && is_size_overflow_type(gimple_assign_lhs(use_stmt)))
113828 + continue;
113829 + num++;
113830 + }
113831 + return num;
113832 +}
113833 +
113834 +static bool no_uses(tree node)
113835 +{
113836 + return !uses_num(node);
113837 +}
113838 +
113839 +// 3.8.5 mm/page-writeback.c __ilog2_u64(): ret, uint + uintmax; uint -> int; int max
113840 +bool is_const_plus_unsigned_signed_truncation(const_tree lhs)
113841 +{
113842 + tree rhs1, lhs_type, rhs_type, rhs2, not_const_rhs;
113843 + gimple def_stmt = get_def_stmt(lhs);
113844 +
113845 + if (!def_stmt || !gimple_assign_cast_p(def_stmt))
113846 + return false;
113847 +
113848 + rhs1 = gimple_assign_rhs1(def_stmt);
113849 + rhs_type = TREE_TYPE(rhs1);
113850 + lhs_type = TREE_TYPE(lhs);
113851 + if (TYPE_UNSIGNED(lhs_type) || !TYPE_UNSIGNED(rhs_type))
113852 + return false;
113853 + if (TYPE_MODE(lhs_type) != TYPE_MODE(rhs_type))
113854 + return false;
113855 +
113856 + def_stmt = get_def_stmt(rhs1);
113857 + if (!def_stmt || !is_gimple_assign(def_stmt) || gimple_num_ops(def_stmt) != 3)
113858 + return false;
113859 +
113860 + if (gimple_assign_rhs_code(def_stmt) != PLUS_EXPR)
113861 + return false;
113862 +
113863 + rhs1 = gimple_assign_rhs1(def_stmt);
113864 + rhs2 = gimple_assign_rhs2(def_stmt);
113865 + if (!is_gimple_constant(rhs1) && !is_gimple_constant(rhs2))
113866 + return false;
113867 +
113868 + if (is_gimple_constant(rhs2))
113869 + not_const_rhs = rhs1;
113870 + else
113871 + not_const_rhs = rhs2;
113872 +
113873 + return no_uses(not_const_rhs);
113874 +}
113875 +
113876 +static bool is_lt_signed_type_max(const_tree rhs)
113877 +{
113878 + const_tree new_type, type_max, type = TREE_TYPE(rhs);
113879 +
113880 + if (!TYPE_UNSIGNED(type))
113881 + return true;
113882 +
113883 + switch (TYPE_MODE(type)) {
113884 + case QImode:
113885 + new_type = intQI_type_node;
113886 + break;
113887 + case HImode:
113888 + new_type = intHI_type_node;
113889 + break;
113890 + case SImode:
113891 + new_type = intSI_type_node;
113892 + break;
113893 + case DImode:
113894 + new_type = intDI_type_node;
113895 + break;
113896 + default:
113897 + debug_tree((tree)type);
113898 + gcc_unreachable();
113899 + }
113900 +
113901 + type_max = TYPE_MAX_VALUE(new_type);
113902 + if (!tree_int_cst_lt(type_max, rhs))
113903 + return true;
113904 +
113905 + return false;
113906 +}
113907 +
113908 +static bool is_gt_zero(const_tree rhs)
113909 +{
113910 + const_tree type = TREE_TYPE(rhs);
113911 +
113912 + if (TYPE_UNSIGNED(type))
113913 + return true;
113914 +
113915 + if (!tree_int_cst_lt(rhs, integer_zero_node))
113916 + return true;
113917 +
113918 + return false;
113919 +}
113920 +
113921 +bool is_a_constant_overflow(const_gimple stmt, const_tree rhs)
113922 +{
113923 + if (gimple_assign_rhs_code(stmt) == MIN_EXPR)
113924 + return false;
113925 + if (!is_gimple_constant(rhs))
113926 + return false;
113927 +
113928 + // If the const is between 0 and the max value of the signed type of the same bitsize then there is no intentional overflow
113929 + if (is_lt_signed_type_max(rhs) && is_gt_zero(rhs))
113930 + return false;
113931 +
113932 + return true;
113933 +}
113934 +
113935 +static tree change_assign_rhs(struct visited *visited, gimple stmt, const_tree orig_rhs, tree new_rhs)
113936 +{
113937 + gimple assign;
113938 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
113939 + tree origtype = TREE_TYPE(orig_rhs);
113940 +
113941 + gcc_assert(is_gimple_assign(stmt));
113942 +
113943 + assign = build_cast_stmt(visited, origtype, new_rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
113944 + pointer_set_insert(visited->my_stmts, assign);
113945 + return gimple_assign_lhs(assign);
113946 +}
113947 +
113948 +tree handle_intentional_overflow(struct visited *visited, struct cgraph_node *caller_node, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs2)
113949 +{
113950 + tree new_rhs, orig_rhs;
113951 + void (*gimple_assign_set_rhs)(gimple, tree);
113952 + tree rhs1 = gimple_assign_rhs1(stmt);
113953 + tree rhs2 = gimple_assign_rhs2(stmt);
113954 + tree lhs = gimple_assign_lhs(stmt);
113955 +
113956 + if (!check_overflow)
113957 + return create_assign(visited, stmt, lhs, AFTER_STMT);
113958 +
113959 + if (change_rhs == NULL_TREE)
113960 + return create_assign(visited, stmt, lhs, AFTER_STMT);
113961 +
113962 + if (new_rhs2 == NULL_TREE) {
113963 + orig_rhs = rhs1;
113964 + gimple_assign_set_rhs = &gimple_assign_set_rhs1;
113965 + } else {
113966 + orig_rhs = rhs2;
113967 + gimple_assign_set_rhs = &gimple_assign_set_rhs2;
113968 + }
113969 +
113970 + check_size_overflow(caller_node, stmt, TREE_TYPE(change_rhs), change_rhs, orig_rhs, BEFORE_STMT);
113971 +
113972 + new_rhs = change_assign_rhs(visited, stmt, orig_rhs, change_rhs);
113973 + gimple_assign_set_rhs(stmt, new_rhs);
113974 + update_stmt(stmt);
113975 +
113976 + return create_assign(visited, stmt, lhs, AFTER_STMT);
113977 +}
113978 +
113979 +static bool is_subtraction_special(struct visited *visited, const_gimple stmt)
113980 +{
113981 + gimple rhs1_def_stmt, rhs2_def_stmt;
113982 + const_tree rhs1_def_stmt_rhs1, rhs2_def_stmt_rhs1, rhs1_def_stmt_lhs, rhs2_def_stmt_lhs;
113983 + enum machine_mode rhs1_def_stmt_rhs1_mode, rhs2_def_stmt_rhs1_mode, rhs1_def_stmt_lhs_mode, rhs2_def_stmt_lhs_mode;
113984 + const_tree rhs1 = gimple_assign_rhs1(stmt);
113985 + const_tree rhs2 = gimple_assign_rhs2(stmt);
113986 +
113987 + if (is_gimple_constant(rhs1) || is_gimple_constant(rhs2))
113988 + return false;
113989 +
113990 + gcc_assert(TREE_CODE(rhs1) == SSA_NAME && TREE_CODE(rhs2) == SSA_NAME);
113991 +
113992 + if (gimple_assign_rhs_code(stmt) != MINUS_EXPR)
113993 + return false;
113994 +
113995 + rhs1_def_stmt = get_def_stmt(rhs1);
113996 + rhs2_def_stmt = get_def_stmt(rhs2);
113997 + if (!gimple_assign_cast_p(rhs1_def_stmt) || !gimple_assign_cast_p(rhs2_def_stmt))
113998 + return false;
113999 +
114000 + rhs1_def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
114001 + rhs2_def_stmt_rhs1 = gimple_assign_rhs1(rhs2_def_stmt);
114002 + rhs1_def_stmt_lhs = gimple_assign_lhs(rhs1_def_stmt);
114003 + rhs2_def_stmt_lhs = gimple_assign_lhs(rhs2_def_stmt);
114004 + rhs1_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_rhs1));
114005 + rhs2_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_rhs1));
114006 + rhs1_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_lhs));
114007 + rhs2_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_lhs));
114008 + if (GET_MODE_BITSIZE(rhs1_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs1_def_stmt_lhs_mode))
114009 + return false;
114010 + if (GET_MODE_BITSIZE(rhs2_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs2_def_stmt_lhs_mode))
114011 + return false;
114012 +
114013 + pointer_set_insert(visited->no_cast_check, rhs1_def_stmt);
114014 + pointer_set_insert(visited->no_cast_check, rhs2_def_stmt);
114015 + return true;
114016 +}
114017 +
114018 +static gimple create_binary_assign(struct visited *visited, enum tree_code code, gimple stmt, tree rhs1, tree rhs2)
114019 +{
114020 + gimple assign;
114021 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
114022 + tree type = TREE_TYPE(rhs1);
114023 + tree lhs = create_new_var(type);
114024 +
114025 + gcc_assert(types_compatible_p(type, TREE_TYPE(rhs2)));
114026 + assign = gimple_build_assign_with_ops(code, lhs, rhs1, rhs2);
114027 + gimple_assign_set_lhs(assign, make_ssa_name(lhs, assign));
114028 +
114029 + gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
114030 + update_stmt(assign);
114031 + pointer_set_insert(visited->my_stmts, assign);
114032 + return assign;
114033 +}
114034 +
114035 +static tree cast_to_TI_type(struct visited *visited, gimple stmt, tree node)
114036 +{
114037 + gimple_stmt_iterator gsi;
114038 + gimple cast_stmt;
114039 + tree type = TREE_TYPE(node);
114040 +
114041 + if (types_compatible_p(type, intTI_type_node))
114042 + return node;
114043 +
114044 + gsi = gsi_for_stmt(stmt);
114045 + cast_stmt = build_cast_stmt(visited, intTI_type_node, node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
114046 + pointer_set_insert(visited->my_stmts, cast_stmt);
114047 + return gimple_assign_lhs(cast_stmt);
114048 +}
114049 +
114050 +static tree get_def_stmt_rhs(struct visited *visited, const_tree var)
114051 +{
114052 + tree rhs1, def_stmt_rhs1;
114053 + gimple rhs1_def_stmt, def_stmt_rhs1_def_stmt, def_stmt;
114054 +
114055 + def_stmt = get_def_stmt(var);
114056 + if (!gimple_assign_cast_p(def_stmt))
114057 + return NULL_TREE;
114058 + gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP && pointer_set_contains(visited->my_stmts, def_stmt) && gimple_assign_cast_p(def_stmt));
114059 +
114060 + rhs1 = gimple_assign_rhs1(def_stmt);
114061 + rhs1_def_stmt = get_def_stmt(rhs1);
114062 + if (!gimple_assign_cast_p(rhs1_def_stmt))
114063 + return rhs1;
114064 +
114065 + def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
114066 + def_stmt_rhs1_def_stmt = get_def_stmt(def_stmt_rhs1);
114067 +
114068 + switch (gimple_code(def_stmt_rhs1_def_stmt)) {
114069 + case GIMPLE_CALL:
114070 + case GIMPLE_NOP:
114071 + case GIMPLE_ASM:
114072 + case GIMPLE_PHI:
114073 + return def_stmt_rhs1;
114074 + case GIMPLE_ASSIGN:
114075 + return rhs1;
114076 + default:
114077 + debug_gimple_stmt(def_stmt_rhs1_def_stmt);
114078 + gcc_unreachable();
114079 + }
114080 +}
114081 +
114082 +tree handle_integer_truncation(struct visited *visited, struct cgraph_node *caller_node, const_tree lhs)
114083 +{
114084 + tree new_rhs1, new_rhs2;
114085 + tree new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1, new_lhs;
114086 + gimple assign, stmt = get_def_stmt(lhs);
114087 + tree rhs1 = gimple_assign_rhs1(stmt);
114088 + tree rhs2 = gimple_assign_rhs2(stmt);
114089 +
114090 + if (!is_subtraction_special(visited, stmt))
114091 + return NULL_TREE;
114092 +
114093 + new_rhs1 = expand(visited, caller_node, rhs1);
114094 + new_rhs2 = expand(visited, caller_node, rhs2);
114095 +
114096 + new_rhs1_def_stmt_rhs1 = get_def_stmt_rhs(visited, new_rhs1);
114097 + new_rhs2_def_stmt_rhs1 = get_def_stmt_rhs(visited, new_rhs2);
114098 +
114099 + if (new_rhs1_def_stmt_rhs1 == NULL_TREE || new_rhs2_def_stmt_rhs1 == NULL_TREE)
114100 + return NULL_TREE;
114101 +
114102 + if (!types_compatible_p(TREE_TYPE(new_rhs1_def_stmt_rhs1), TREE_TYPE(new_rhs2_def_stmt_rhs1))) {
114103 + new_rhs1_def_stmt_rhs1 = cast_to_TI_type(visited, stmt, new_rhs1_def_stmt_rhs1);
114104 + new_rhs2_def_stmt_rhs1 = cast_to_TI_type(visited, stmt, new_rhs2_def_stmt_rhs1);
114105 + }
114106 +
114107 + assign = create_binary_assign(visited, MINUS_EXPR, stmt, new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1);
114108 + new_lhs = gimple_assign_lhs(assign);
114109 + check_size_overflow(caller_node, assign, TREE_TYPE(new_lhs), new_lhs, rhs1, AFTER_STMT);
114110 +
114111 + return dup_assign(visited, stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
114112 +}
114113 +
114114 +bool is_a_neg_overflow(const_gimple stmt, const_tree rhs)
114115 +{
114116 + const_gimple def_stmt;
114117 +
114118 + if (TREE_CODE(rhs) != SSA_NAME)
114119 + return false;
114120 +
114121 + if (gimple_assign_rhs_code(stmt) != PLUS_EXPR)
114122 + return false;
114123 +
114124 + def_stmt = get_def_stmt(rhs);
114125 + if (!is_gimple_assign(def_stmt) || gimple_assign_rhs_code(def_stmt) != BIT_NOT_EXPR)
114126 + return false;
114127 +
114128 + return true;
114129 +}
114130 +
114131 +/* e.g., drivers/acpi/acpica/utids.c acpi_ut_execute_CID()
114132 + * ((count - 1) * sizeof(struct acpi_pnp_dee_id_list) -> (count + fffffff) * 16
114133 + * fffffff * 16 > signed max -> truncate
114134 + */
114135 +static bool look_for_mult_and_add(const_gimple stmt)
114136 +{
114137 + const_tree res;
114138 + tree rhs1, rhs2, def_rhs1, def_rhs2, const_rhs, def_const_rhs;
114139 + const_gimple def_stmt;
114140 +
114141 + if (!stmt || gimple_code(stmt) == GIMPLE_NOP)
114142 + return false;
114143 + if (!is_gimple_assign(stmt))
114144 + return false;
114145 + if (gimple_assign_rhs_code(stmt) != MULT_EXPR)
114146 + return false;
114147 +
114148 + rhs1 = gimple_assign_rhs1(stmt);
114149 + rhs2 = gimple_assign_rhs2(stmt);
114150 + if (is_gimple_constant(rhs1)) {
114151 + const_rhs = rhs1;
114152 + def_stmt = get_def_stmt(rhs2);
114153 + } else if (is_gimple_constant(rhs2)) {
114154 + const_rhs = rhs2;
114155 + def_stmt = get_def_stmt(rhs1);
114156 + } else
114157 + return false;
114158 +
114159 + if (gimple_assign_rhs_code(def_stmt) != PLUS_EXPR && gimple_assign_rhs_code(def_stmt) != MINUS_EXPR)
114160 + return false;
114161 +
114162 + def_rhs1 = gimple_assign_rhs1(def_stmt);
114163 + def_rhs2 = gimple_assign_rhs2(def_stmt);
114164 + if (is_gimple_constant(def_rhs1))
114165 + def_const_rhs = def_rhs1;
114166 + else if (is_gimple_constant(def_rhs2))
114167 + def_const_rhs = def_rhs2;
114168 + else
114169 + return false;
114170 +
114171 + res = fold_binary_loc(gimple_location(def_stmt), MULT_EXPR, TREE_TYPE(const_rhs), const_rhs, def_const_rhs);
114172 + if (is_lt_signed_type_max(res) && is_gt_zero(res))
114173 + return false;
114174 + return true;
114175 +}
114176 +
114177 +enum intentional_overflow_type add_mul_intentional_overflow(const_gimple stmt)
114178 +{
114179 + const_gimple def_stmt_1, def_stmt_2;
114180 + const_tree rhs1, rhs2;
114181 + bool add_mul_rhs1, add_mul_rhs2;
114182 +
114183 + rhs1 = gimple_assign_rhs1(stmt);
114184 + def_stmt_1 = get_def_stmt(rhs1);
114185 + add_mul_rhs1 = look_for_mult_and_add(def_stmt_1);
114186 +
114187 + rhs2 = gimple_assign_rhs2(stmt);
114188 + def_stmt_2 = get_def_stmt(rhs2);
114189 + add_mul_rhs2 = look_for_mult_and_add(def_stmt_2);
114190 +
114191 + if (add_mul_rhs1)
114192 + return RHS1_INTENTIONAL_OVERFLOW;
114193 + if (add_mul_rhs2)
114194 + return RHS2_INTENTIONAL_OVERFLOW;
114195 + return NO_INTENTIONAL_OVERFLOW;
114196 +}
114197 +
114198 +static gimple get_dup_stmt(struct visited *visited, gimple stmt)
114199 +{
114200 + gimple my_stmt;
114201 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
114202 +
114203 + gsi_next(&gsi);
114204 + my_stmt = gsi_stmt(gsi);
114205 +
114206 + gcc_assert(pointer_set_contains(visited->my_stmts, my_stmt));
114207 + gcc_assert(gimple_assign_rhs_code(stmt) == gimple_assign_rhs_code(my_stmt));
114208 +
114209 + return my_stmt;
114210 +}
114211 +
114212 +/* unsigned type -> unary or binary assign (rhs1 or rhs2 is constant)
114213 + * unsigned type cast to signed type, unsigned type: no more uses
114214 + * e.g., lib/vsprintf.c:simple_strtol()
114215 + * _10 = (unsigned long int) _9
114216 + * _11 = -_10;
114217 + * _12 = (long int) _11; (_11_ no more uses)
114218 + */
114219 +static bool is_call_or_cast(gimple stmt)
114220 +{
114221 + return gimple_assign_cast_p(stmt) || is_gimple_call(stmt);
114222 +}
114223 +
114224 +static bool is_unsigned_cast_or_call_def_stmt(const_tree node)
114225 +{
114226 + const_tree rhs;
114227 + gimple def_stmt;
114228 +
114229 + if (node == NULL_TREE)
114230 + return true;
114231 + if (is_gimple_constant(node))
114232 + return true;
114233 +
114234 + def_stmt = get_def_stmt(node);
114235 + if (!def_stmt)
114236 + return false;
114237 +
114238 + if (is_call_or_cast(def_stmt))
114239 + return true;
114240 +
114241 + if (!is_gimple_assign(def_stmt) || gimple_num_ops(def_stmt) != 2)
114242 + return false;
114243 + rhs = gimple_assign_rhs1(def_stmt);
114244 + def_stmt = get_def_stmt(rhs);
114245 + if (!def_stmt)
114246 + return false;
114247 + return is_call_or_cast(def_stmt);
114248 +}
114249 +
114250 +void unsigned_signed_cast_intentional_overflow(struct visited *visited, gimple stmt)
114251 +{
114252 + unsigned int use_num;
114253 + gimple so_stmt;
114254 + const_gimple def_stmt;
114255 + const_tree rhs1, rhs2;
114256 + tree rhs = gimple_assign_rhs1(stmt);
114257 + tree lhs_type = TREE_TYPE(gimple_assign_lhs(stmt));
114258 + const_tree rhs_type = TREE_TYPE(rhs);
114259 +
114260 + if (!(TYPE_UNSIGNED(rhs_type) && !TYPE_UNSIGNED(lhs_type)))
114261 + return;
114262 + if (GET_MODE_BITSIZE(TYPE_MODE(rhs_type)) != GET_MODE_BITSIZE(TYPE_MODE(lhs_type)))
114263 + return;
114264 + use_num = uses_num(rhs);
114265 + if (use_num != 1)
114266 + return;
114267 +
114268 + def_stmt = get_def_stmt(rhs);
114269 + if (!def_stmt)
114270 + return;
114271 + if (!is_gimple_assign(def_stmt))
114272 + return;
114273 +
114274 + rhs1 = gimple_assign_rhs1(def_stmt);
114275 + if (!is_unsigned_cast_or_call_def_stmt(rhs1))
114276 + return;
114277 +
114278 + rhs2 = gimple_assign_rhs2(def_stmt);
114279 + if (!is_unsigned_cast_or_call_def_stmt(rhs2))
114280 + return;
114281 + if (gimple_num_ops(def_stmt) == 3 && !is_gimple_constant(rhs1) && !is_gimple_constant(rhs2))
114282 + return;
114283 +
114284 + so_stmt = get_dup_stmt(visited, stmt);
114285 + create_up_and_down_cast(visited, so_stmt, lhs_type, gimple_assign_rhs1(so_stmt));
114286 +}
114287 +
114288 diff --git a/tools/gcc/size_overflow_plugin/misc.c b/tools/gcc/size_overflow_plugin/misc.c
114289 new file mode 100644
114290 index 0000000..4bddad2
114291 --- /dev/null
114292 +++ b/tools/gcc/size_overflow_plugin/misc.c
114293 @@ -0,0 +1,203 @@
114294 +/*
114295 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
114296 + * Licensed under the GPL v2, or (at your option) v3
114297 + *
114298 + * Homepage:
114299 + * http://www.grsecurity.net/~ephox/overflow_plugin/
114300 + *
114301 + * Documentation:
114302 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
114303 + *
114304 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
114305 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
114306 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
114307 + *
114308 + * Usage:
114309 + * $ make
114310 + * $ make run
114311 + */
114312 +
114313 +#include "gcc-common.h"
114314 +#include "size_overflow.h"
114315 +
114316 +void set_current_function_decl(tree fndecl)
114317 +{
114318 + gcc_assert(fndecl != NULL_TREE);
114319 +
114320 + push_cfun(DECL_STRUCT_FUNCTION(fndecl));
114321 + calculate_dominance_info(CDI_DOMINATORS);
114322 + current_function_decl = fndecl;
114323 +}
114324 +
114325 +void unset_current_function_decl(void)
114326 +{
114327 + free_dominance_info(CDI_DOMINATORS);
114328 + pop_cfun();
114329 + current_function_decl = NULL_TREE;
114330 +}
114331 +
114332 +static bool is_bool(const_tree node)
114333 +{
114334 + const_tree type;
114335 +
114336 + if (node == NULL_TREE)
114337 + return false;
114338 +
114339 + type = TREE_TYPE(node);
114340 + if (!INTEGRAL_TYPE_P(type))
114341 + return false;
114342 + if (TREE_CODE(type) == BOOLEAN_TYPE)
114343 + return true;
114344 + if (TYPE_PRECISION(type) == 1)
114345 + return true;
114346 + return false;
114347 +}
114348 +
114349 +bool skip_types(const_tree var)
114350 +{
114351 + tree type;
114352 + enum tree_code code;
114353 +
114354 + if (is_gimple_constant(var))
114355 + return true;
114356 +
114357 + switch (TREE_CODE(var)) {
114358 + case ADDR_EXPR:
114359 +#if BUILDING_GCC_VERSION >= 4006
114360 + case MEM_REF:
114361 +#endif
114362 + case ARRAY_REF:
114363 + case BIT_FIELD_REF:
114364 + case INDIRECT_REF:
114365 + case TARGET_MEM_REF:
114366 + case COMPONENT_REF:
114367 + case VAR_DECL:
114368 + case VIEW_CONVERT_EXPR:
114369 + return true;
114370 + default:
114371 + break;
114372 + }
114373 +
114374 + code = TREE_CODE(var);
114375 + gcc_assert(code == SSA_NAME || code == PARM_DECL);
114376 +
114377 + type = TREE_TYPE(var);
114378 + switch (TREE_CODE(type)) {
114379 + case INTEGER_TYPE:
114380 + case ENUMERAL_TYPE:
114381 + return false;
114382 + case BOOLEAN_TYPE:
114383 + return is_bool(var);
114384 + default:
114385 + return true;
114386 + }
114387 +}
114388 +
114389 +gimple get_def_stmt(const_tree node)
114390 +{
114391 + gcc_assert(node != NULL_TREE);
114392 +
114393 + if (skip_types(node))
114394 + return NULL;
114395 +
114396 + if (TREE_CODE(node) != SSA_NAME)
114397 + return NULL;
114398 + return SSA_NAME_DEF_STMT(node);
114399 +}
114400 +
114401 +tree create_new_var(tree type)
114402 +{
114403 + tree new_var = create_tmp_var(type, "cicus");
114404 +
114405 + add_referenced_var(new_var);
114406 + return new_var;
114407 +}
114408 +
114409 +static bool skip_cast(tree dst_type, const_tree rhs, bool force)
114410 +{
114411 + const_gimple def_stmt = get_def_stmt(rhs);
114412 +
114413 + if (force)
114414 + return false;
114415 +
114416 + if (is_gimple_constant(rhs))
114417 + return false;
114418 +
114419 + if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
114420 + return false;
114421 +
114422 + if (!types_compatible_p(dst_type, TREE_TYPE(rhs)))
114423 + return false;
114424 +
114425 + // DI type can be on 32 bit (from create_assign) but overflow type stays DI
114426 + if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
114427 + return false;
114428 +
114429 + return true;
114430 +}
114431 +
114432 +tree cast_a_tree(tree type, tree var)
114433 +{
114434 + gcc_assert(type != NULL_TREE);
114435 + gcc_assert(var != NULL_TREE);
114436 + gcc_assert(fold_convertible_p(type, var));
114437 +
114438 + return fold_convert(type, var);
114439 +}
114440 +
114441 +gimple build_cast_stmt(struct visited *visited, tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before, bool force)
114442 +{
114443 + gimple assign, def_stmt;
114444 +
114445 + gcc_assert(dst_type != NULL_TREE && rhs != NULL_TREE);
114446 + gcc_assert(!is_gimple_constant(rhs));
114447 + if (gsi_end_p(*gsi) && before == AFTER_STMT)
114448 + gcc_unreachable();
114449 +
114450 + def_stmt = get_def_stmt(rhs);
114451 + if (def_stmt && gimple_code(def_stmt) != GIMPLE_NOP && skip_cast(dst_type, rhs, force) && pointer_set_contains(visited->my_stmts, def_stmt))
114452 + return def_stmt;
114453 +
114454 + if (lhs == CREATE_NEW_VAR)
114455 + lhs = create_new_var(dst_type);
114456 +
114457 + assign = gimple_build_assign(lhs, cast_a_tree(dst_type, rhs));
114458 +
114459 + if (!gsi_end_p(*gsi)) {
114460 + location_t loc = gimple_location(gsi_stmt(*gsi));
114461 + gimple_set_location(assign, loc);
114462 + }
114463 +
114464 + gimple_assign_set_lhs(assign, make_ssa_name(lhs, assign));
114465 +
114466 + if (before)
114467 + gsi_insert_before(gsi, assign, GSI_NEW_STMT);
114468 + else
114469 + gsi_insert_after(gsi, assign, GSI_NEW_STMT);
114470 + update_stmt(assign);
114471 + return assign;
114472 +}
114473 +
114474 +bool is_size_overflow_type(const_tree var)
114475 +{
114476 + const char *name;
114477 + const_tree type_name, type;
114478 +
114479 + if (var == NULL_TREE)
114480 + return false;
114481 +
114482 + type = TREE_TYPE(var);
114483 + type_name = TYPE_NAME(type);
114484 + if (type_name == NULL_TREE)
114485 + return false;
114486 +
114487 + if (DECL_P(type_name))
114488 + name = DECL_NAME_POINTER(type_name);
114489 + else
114490 + name = IDENTIFIER_POINTER(type_name);
114491 +
114492 + if (!strncmp(name, "size_overflow_type", 18))
114493 + return true;
114494 + return false;
114495 +}
114496 +
114497 diff --git a/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c b/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c
114498 new file mode 100644
114499 index 0000000..7c9e6d1
114500 --- /dev/null
114501 +++ b/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c
114502 @@ -0,0 +1,138 @@
114503 +/*
114504 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
114505 + * Licensed under the GPL v2, or (at your option) v3
114506 + *
114507 + * Homepage:
114508 + * http://www.grsecurity.net/~ephox/overflow_plugin/
114509 + *
114510 + * Documentation:
114511 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
114512 + *
114513 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
114514 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
114515 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
114516 + *
114517 + * Usage:
114518 + * $ make
114519 + * $ make run
114520 + */
114521 +
114522 +#include "gcc-common.h"
114523 +#include "size_overflow.h"
114524 +
114525 +bool skip_expr_on_double_type(const_gimple stmt)
114526 +{
114527 + enum tree_code code = gimple_assign_rhs_code(stmt);
114528 +
114529 + switch (code) {
114530 + case RSHIFT_EXPR:
114531 + case TRUNC_DIV_EXPR:
114532 + case CEIL_DIV_EXPR:
114533 + case FLOOR_DIV_EXPR:
114534 + case ROUND_DIV_EXPR:
114535 + case EXACT_DIV_EXPR:
114536 + case RDIV_EXPR:
114537 + case TRUNC_MOD_EXPR:
114538 + case CEIL_MOD_EXPR:
114539 + case FLOOR_MOD_EXPR:
114540 + case ROUND_MOD_EXPR:
114541 + return true;
114542 + default:
114543 + return false;
114544 + }
114545 +}
114546 +
114547 +void create_up_and_down_cast(struct visited *visited, gimple use_stmt, tree orig_type, tree rhs)
114548 +{
114549 + const_tree orig_rhs1;
114550 + tree down_lhs, new_lhs, dup_type = TREE_TYPE(rhs);
114551 + gimple down_cast, up_cast;
114552 + gimple_stmt_iterator gsi = gsi_for_stmt(use_stmt);
114553 +
114554 + down_cast = build_cast_stmt(visited, orig_type, rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
114555 + down_lhs = gimple_assign_lhs(down_cast);
114556 +
114557 + gsi = gsi_for_stmt(use_stmt);
114558 + up_cast = build_cast_stmt(visited, dup_type, down_lhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
114559 + new_lhs = gimple_assign_lhs(up_cast);
114560 +
114561 + orig_rhs1 = gimple_assign_rhs1(use_stmt);
114562 + if (operand_equal_p(orig_rhs1, rhs, 0))
114563 + gimple_assign_set_rhs1(use_stmt, new_lhs);
114564 + else
114565 + gimple_assign_set_rhs2(use_stmt, new_lhs);
114566 + update_stmt(use_stmt);
114567 +
114568 + pointer_set_insert(visited->my_stmts, up_cast);
114569 + pointer_set_insert(visited->my_stmts, down_cast);
114570 + pointer_set_insert(visited->skip_expr_casts, up_cast);
114571 + pointer_set_insert(visited->skip_expr_casts, down_cast);
114572 +}
114573 +
114574 +static tree get_proper_unsigned_half_type(const_tree node)
114575 +{
114576 + tree new_type, type;
114577 +
114578 + gcc_assert(is_size_overflow_type(node));
114579 +
114580 + type = TREE_TYPE(node);
114581 + switch (TYPE_MODE(type)) {
114582 + case HImode:
114583 + new_type = unsigned_intQI_type_node;
114584 + break;
114585 + case SImode:
114586 + new_type = unsigned_intHI_type_node;
114587 + break;
114588 + case DImode:
114589 + new_type = unsigned_intSI_type_node;
114590 + break;
114591 + case TImode:
114592 + new_type = unsigned_intDI_type_node;
114593 + break;
114594 + default:
114595 + gcc_unreachable();
114596 + }
114597 +
114598 + if (TYPE_QUALS(type) != 0)
114599 + return build_qualified_type(new_type, TYPE_QUALS(type));
114600 + return new_type;
114601 +}
114602 +
114603 +static void insert_cast_rhs(struct visited *visited, gimple stmt, tree rhs)
114604 +{
114605 + tree type;
114606 +
114607 + if (rhs == NULL_TREE)
114608 + return;
114609 + if (!is_size_overflow_type(rhs))
114610 + return;
114611 +
114612 + type = get_proper_unsigned_half_type(rhs);
114613 + if (is_gimple_constant(rhs))
114614 + return;
114615 + create_up_and_down_cast(visited, stmt, type, rhs);
114616 +}
114617 +
114618 +static void insert_cast(struct visited *visited, gimple stmt, tree rhs)
114619 +{
114620 + if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode) && !is_size_overflow_type(rhs))
114621 + return;
114622 + gcc_assert(is_size_overflow_type(rhs));
114623 + insert_cast_rhs(visited, stmt, rhs);
114624 +}
114625 +
114626 +void insert_cast_expr(struct visited *visited, gimple stmt, enum intentional_overflow_type type)
114627 +{
114628 + tree rhs1, rhs2;
114629 +
114630 + if (type == NO_INTENTIONAL_OVERFLOW || type == RHS1_INTENTIONAL_OVERFLOW) {
114631 + rhs1 = gimple_assign_rhs1(stmt);
114632 + insert_cast(visited, stmt, rhs1);
114633 + }
114634 +
114635 + if (type == NO_INTENTIONAL_OVERFLOW || type == RHS2_INTENTIONAL_OVERFLOW) {
114636 + rhs2 = gimple_assign_rhs2(stmt);
114637 + insert_cast(visited, stmt, rhs2);
114638 + }
114639 +}
114640 +
114641 diff --git a/tools/gcc/size_overflow_plugin/size_overflow.h b/tools/gcc/size_overflow_plugin/size_overflow.h
114642 new file mode 100644
114643 index 0000000..e5b4e50
114644 --- /dev/null
114645 +++ b/tools/gcc/size_overflow_plugin/size_overflow.h
114646 @@ -0,0 +1,127 @@
114647 +#ifndef SIZE_OVERFLOW_H
114648 +#define SIZE_OVERFLOW_H
114649 +
114650 +#define CREATE_NEW_VAR NULL_TREE
114651 +#define CANNOT_FIND_ARG 32
114652 +#define MAX_PARAM 31
114653 +#define BEFORE_STMT true
114654 +#define AFTER_STMT false
114655 +
114656 +#define TURN_OFF_ASM_STR "# size_overflow MARK_TURN_OFF "
114657 +#define YES_ASM_STR "# size_overflow MARK_YES "
114658 +#define OK_ASM_STR "# size_overflow "
114659 +
114660 +enum mark {
114661 + MARK_NO, MARK_YES, MARK_NOT_INTENTIONAL, MARK_TURN_OFF
114662 +};
114663 +
114664 +enum intentional_overflow_type {
114665 + NO_INTENTIONAL_OVERFLOW, RHS1_INTENTIONAL_OVERFLOW, RHS2_INTENTIONAL_OVERFLOW
114666 +};
114667 +
114668 +struct visited {
114669 + struct pointer_set_t *stmts;
114670 + struct pointer_set_t *my_stmts;
114671 + struct pointer_set_t *skip_expr_casts;
114672 + struct pointer_set_t *no_cast_check;
114673 +};
114674 +
114675 +// size_overflow_plugin.c
114676 +extern tree report_size_overflow_decl;
114677 +extern tree size_overflow_type_HI;
114678 +extern tree size_overflow_type_SI;
114679 +extern tree size_overflow_type_DI;
114680 +extern tree size_overflow_type_TI;
114681 +
114682 +
114683 +// size_overflow_plugin_hash.c
114684 +struct size_overflow_hash {
114685 + const struct size_overflow_hash * const next;
114686 + const char * const name;
114687 + const unsigned int param;
114688 +};
114689 +
114690 +struct interesting_node {
114691 + struct interesting_node *next;
114692 + gimple first_stmt;
114693 + const_tree fndecl;
114694 + tree node;
114695 +#if BUILDING_GCC_VERSION <= 4007
114696 + VEC(tree, gc) *last_nodes;
114697 +#else
114698 + vec<tree, va_gc> *last_nodes;
114699 +#endif
114700 + unsigned int num;
114701 + enum mark intentional_attr_decl;
114702 + enum mark intentional_attr_cur_fndecl;
114703 + gimple intentional_mark_from_gimple;
114704 +};
114705 +
114706 +extern bool is_size_overflow_asm(const_gimple stmt);
114707 +extern unsigned int get_function_num(const_tree node, const_tree orig_fndecl);
114708 +extern unsigned int get_correct_arg_count(unsigned int argnum, const_tree fndecl);
114709 +extern bool is_missing_function(const_tree orig_fndecl, unsigned int num);
114710 +extern bool is_a_return_check(const_tree node);
114711 +extern const struct size_overflow_hash *get_function_hash(const_tree fndecl);
114712 +extern unsigned int find_arg_number_tree(const_tree arg, const_tree func);
114713 +
114714 +
114715 +// size_overflow_debug.c
114716 +extern struct opt_pass *make_dump_pass(void);
114717 +
114718 +
114719 +// intentional_overflow.c
114720 +extern enum mark get_intentional_attr_type(const_tree node);
114721 +extern bool is_size_overflow_intentional_asm_yes(const_gimple stmt);
114722 +extern bool is_size_overflow_intentional_asm_turn_off(const_gimple stmt);
114723 +extern bool is_end_intentional_intentional_attr(const_tree decl, unsigned int argnum);
114724 +extern bool is_yes_intentional_attr(const_tree decl, unsigned int argnum);
114725 +extern bool is_turn_off_intentional_attr(const_tree decl);
114726 +extern void print_missing_intentional(enum mark callee_attr, enum mark caller_attr, const_tree decl, unsigned int argnum);
114727 +extern void check_intentional_attribute_ipa(struct interesting_node *cur_node);
114728 +extern bool is_a_cast_and_const_overflow(const_tree no_const_rhs);
114729 +extern bool is_const_plus_unsigned_signed_truncation(const_tree lhs);
114730 +extern bool is_a_constant_overflow(const_gimple stmt, const_tree rhs);
114731 +extern tree handle_intentional_overflow(struct visited *visited, struct cgraph_node *caller_node, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs2);
114732 +extern tree handle_integer_truncation(struct visited *visited, struct cgraph_node *caller_node, const_tree lhs);
114733 +extern bool is_a_neg_overflow(const_gimple stmt, const_tree rhs);
114734 +extern enum intentional_overflow_type add_mul_intentional_overflow(const_gimple def_stmt);
114735 +extern void unsigned_signed_cast_intentional_overflow(struct visited *visited, gimple stmt);
114736 +
114737 +
114738 +// insert_size_overflow_check_ipa.c
114739 +extern unsigned int search_function(void);
114740 +extern unsigned int call_count;
114741 +extern struct opt_pass *make_insert_size_overflow_check(void);
114742 +extern const_tree get_interesting_orig_fndecl(const_gimple stmt, unsigned int argnum);
114743 +
114744 +
114745 +// insert_size_overflow_asm.c
114746 +extern struct opt_pass *make_insert_size_overflow_asm_pass(void);
114747 +
114748 +
114749 +// misc.c
114750 +extern void set_current_function_decl(tree fndecl);
114751 +extern void unset_current_function_decl(void);
114752 +extern gimple get_def_stmt(const_tree node);
114753 +extern tree create_new_var(tree type);
114754 +extern gimple build_cast_stmt(struct visited *visited, tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before, bool force);
114755 +extern bool skip_types(const_tree var);
114756 +extern tree cast_a_tree(tree type, tree var);
114757 +extern bool is_size_overflow_type(const_tree var);
114758 +
114759 +
114760 +// insert_size_overflow_check_core.c
114761 +extern tree expand(struct visited *visited, struct cgraph_node *caller_node, tree lhs);
114762 +extern void check_size_overflow(struct cgraph_node *caller_node, gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before);
114763 +extern tree dup_assign(struct visited *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3);
114764 +extern tree create_assign(struct visited *visited, gimple oldstmt, tree rhs1, bool before);
114765 +
114766 +
114767 +// remove_unnecessary_dup.c
114768 +extern struct opt_pass *make_remove_unnecessary_dup_pass(void);
114769 +extern void insert_cast_expr(struct visited *visited, gimple stmt, enum intentional_overflow_type type);
114770 +extern bool skip_expr_on_double_type(const_gimple stmt);
114771 +extern void create_up_and_down_cast(struct visited *visited, gimple use_stmt, tree orig_type, tree rhs);
114772 +
114773 +#endif
114774 diff --git a/tools/gcc/size_overflow_plugin/size_overflow_debug.c b/tools/gcc/size_overflow_plugin/size_overflow_debug.c
114775 new file mode 100644
114776 index 0000000..4378111
114777 --- /dev/null
114778 +++ b/tools/gcc/size_overflow_plugin/size_overflow_debug.c
114779 @@ -0,0 +1,116 @@
114780 +/*
114781 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
114782 + * Licensed under the GPL v2, or (at your option) v3
114783 + *
114784 + * Homepage:
114785 + * http://www.grsecurity.net/~ephox/overflow_plugin/
114786 + *
114787 + * Documentation:
114788 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
114789 + *
114790 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
114791 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
114792 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
114793 + *
114794 + * Usage:
114795 + * $ make
114796 + * $ make run
114797 + */
114798 +
114799 +#include "gcc-common.h"
114800 +
114801 +static unsigned int dump_functions(void)
114802 +{
114803 + struct cgraph_node *node;
114804 +
114805 + FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) {
114806 + basic_block bb;
114807 +
114808 + push_cfun(DECL_STRUCT_FUNCTION(NODE_DECL(node)));
114809 + current_function_decl = NODE_DECL(node);
114810 +
114811 + fprintf(stderr, "-----------------------------------------\n%s\n-----------------------------------------\n", DECL_NAME_POINTER(current_function_decl));
114812 +
114813 + FOR_ALL_BB_FN(bb, cfun) {
114814 + gimple_stmt_iterator si;
114815 +
114816 + fprintf(stderr, "<bb %u>:\n", bb->index);
114817 + for (si = gsi_start_phis(bb); !gsi_end_p(si); gsi_next(&si))
114818 + debug_gimple_stmt(gsi_stmt(si));
114819 + for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
114820 + debug_gimple_stmt(gsi_stmt(si));
114821 + fprintf(stderr, "\n");
114822 + }
114823 +
114824 + fprintf(stderr, "-------------------------------------------------------------------------\n");
114825 +
114826 + pop_cfun();
114827 + current_function_decl = NULL_TREE;
114828 + }
114829 +
114830 + fprintf(stderr, "###############################################################################\n");
114831 +
114832 + return 0;
114833 +}
114834 +
114835 +#if BUILDING_GCC_VERSION >= 4009
114836 +static const struct pass_data dump_pass_data = {
114837 +#else
114838 +static struct ipa_opt_pass_d dump_pass = {
114839 + .pass = {
114840 +#endif
114841 + .type = SIMPLE_IPA_PASS,
114842 + .name = "dump",
114843 +#if BUILDING_GCC_VERSION >= 4008
114844 + .optinfo_flags = OPTGROUP_NONE,
114845 +#endif
114846 +#if BUILDING_GCC_VERSION >= 4009
114847 + .has_gate = false,
114848 + .has_execute = true,
114849 +#else
114850 + .gate = NULL,
114851 + .execute = dump_functions,
114852 + .sub = NULL,
114853 + .next = NULL,
114854 + .static_pass_number = 0,
114855 +#endif
114856 + .tv_id = TV_NONE,
114857 + .properties_required = 0,
114858 + .properties_provided = 0,
114859 + .properties_destroyed = 0,
114860 + .todo_flags_start = 0,
114861 + .todo_flags_finish = 0,
114862 +#if BUILDING_GCC_VERSION < 4009
114863 + },
114864 + .generate_summary = NULL,
114865 + .write_summary = NULL,
114866 + .read_summary = NULL,
114867 +#if BUILDING_GCC_VERSION >= 4006
114868 + .write_optimization_summary = NULL,
114869 + .read_optimization_summary = NULL,
114870 +#endif
114871 + .stmt_fixup = NULL,
114872 + .function_transform_todo_flags_start = 0,
114873 + .function_transform = NULL,
114874 + .variable_transform = NULL,
114875 +#endif
114876 +};
114877 +
114878 +#if BUILDING_GCC_VERSION >= 4009
114879 +namespace {
114880 +class dump_pass : public ipa_opt_pass_d {
114881 +public:
114882 + dump_pass() : ipa_opt_pass_d(dump_pass_data, g, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL) {}
114883 + unsigned int execute() { return dump_functions(); }
114884 +};
114885 +}
114886 +#endif
114887 +
114888 +struct opt_pass *make_dump_pass(void)
114889 +{
114890 +#if BUILDING_GCC_VERSION >= 4009
114891 + return new dump_pass();
114892 +#else
114893 + return &dump_pass.pass;
114894 +#endif
114895 +}
114896 diff --git a/tools/gcc/size_overflow_plugin/size_overflow_hash.data b/tools/gcc/size_overflow_plugin/size_overflow_hash.data
114897 new file mode 100644
114898 index 0000000..386792a
114899 --- /dev/null
114900 +++ b/tools/gcc/size_overflow_plugin/size_overflow_hash.data
114901 @@ -0,0 +1,5808 @@
114902 +intel_fake_agp_alloc_by_type_1 intel_fake_agp_alloc_by_type 1 1 NULL
114903 +storvsc_connect_to_vsp_22 storvsc_connect_to_vsp 2 22 NULL
114904 +compat_sock_setsockopt_23 compat_sock_setsockopt 5 23 NULL
114905 +carl9170_alloc_27 carl9170_alloc 1 27 NULL
114906 +sel_read_policyvers_55 sel_read_policyvers 3 55 NULL nohasharray
114907 +padzero_55 padzero 1 55 &sel_read_policyvers_55
114908 +cfg80211_disconnected_57 cfg80211_disconnected 4 57 NULL
114909 +__skb_to_sgvec_72 __skb_to_sgvec 0 72 NULL
114910 +snd_korg1212_copy_to_92 snd_korg1212_copy_to 6 92 NULL
114911 +load_msg_95 load_msg 2 95 NULL
114912 +ipath_verbs_send_117 ipath_verbs_send 5-3 117 NULL
114913 +init_q_132 init_q 4 132 NULL
114914 +memstick_alloc_host_142 memstick_alloc_host 1 142 NULL
114915 +hva_to_gfn_memslot_149 hva_to_gfn_memslot 0-1 149 NULL
114916 +ping_v6_sendmsg_152 ping_v6_sendmsg 4 152 NULL
114917 +tracing_trace_options_write_153 tracing_trace_options_write 3 153 NULL nohasharray
114918 +ext4_ext_get_actual_len_153 ext4_ext_get_actual_len 0 153 &tracing_trace_options_write_153
114919 +pci_request_selected_regions_169 pci_request_selected_regions 0 169 NULL
114920 +xfs_buf_item_get_format_189 xfs_buf_item_get_format 2 189 NULL
114921 +iscsi_session_setup_196 iscsi_session_setup 4-5 196 NULL
114922 +ll_xattr_cache_seq_write_250 ll_xattr_cache_seq_write 3 250 NULL
114923 +br_port_info_size_268 br_port_info_size 0 268 NULL
114924 +read_file_war_stats_292 read_file_war_stats 3 292 NULL
114925 +SYSC_connect_304 SYSC_connect 3 304 NULL
114926 +syslog_print_307 syslog_print 2 307 NULL
114927 +dn_setsockopt_314 dn_setsockopt 5 314 NULL
114928 +mlx5_core_access_reg_361 mlx5_core_access_reg 3-5 361 NULL
114929 +aio_read_events_ring_410 aio_read_events_ring 3 410 NULL
114930 +lbs_rdmac_read_418 lbs_rdmac_read 3 418 NULL
114931 +snd_ca0106_ptr_read_467 snd_ca0106_ptr_read 0 467 NULL
114932 +cfs_trace_set_debug_mb_usrstr_486 cfs_trace_set_debug_mb_usrstr 2 486 NULL
114933 +nvme_trans_modesel_data_488 nvme_trans_modesel_data 4 488 NULL
114934 +iwl_dbgfs_protection_mode_write_502 iwl_dbgfs_protection_mode_write 3 502 NULL
114935 +rx_rx_defrag_end_read_505 rx_rx_defrag_end_read 3 505 NULL
114936 +ocfs2_validate_meta_ecc_bhs_527 ocfs2_validate_meta_ecc_bhs 0 527 NULL
114937 +zlib_deflate_workspacesize_537 zlib_deflate_workspacesize 0-1-2 537 NULL
114938 +iwl_dbgfs_wowlan_sram_read_540 iwl_dbgfs_wowlan_sram_read 3 540 NULL
114939 +sco_sock_setsockopt_552 sco_sock_setsockopt 5 552 NULL
114940 +lpfc_nlp_state_name_556 lpfc_nlp_state_name 2 556 NULL
114941 +snd_aw2_saa7146_get_hw_ptr_playback_558 snd_aw2_saa7146_get_hw_ptr_playback 0 558 NULL
114942 +start_isoc_chain_565 start_isoc_chain 2 565 NULL nohasharray
114943 +dev_hard_header_565 dev_hard_header 0 565 &start_isoc_chain_565
114944 +smk_write_load_self2_591 smk_write_load_self2 3 591 NULL
114945 +btrfs_stack_file_extent_offset_607 btrfs_stack_file_extent_offset 0 607 NULL
114946 +ni_gpct_device_construct_610 ni_gpct_device_construct 5 610 NULL
114947 +fuse_request_alloc_nofs_617 fuse_request_alloc_nofs 1 617 NULL
114948 +ptlrpc_lprocfs_nrs_seq_write_621 ptlrpc_lprocfs_nrs_seq_write 3 621 NULL
114949 +viafb_dfpl_proc_write_627 viafb_dfpl_proc_write 3 627 NULL
114950 +ceph_osdc_new_request_635 ceph_osdc_new_request 6 635 NULL
114951 +cfs_hash_bkt_size_643 cfs_hash_bkt_size 0 643 NULL
114952 +unlink_queued_645 unlink_queued 4 645 NULL
114953 +dtim_interval_read_654 dtim_interval_read 3 654 NULL
114954 +mem_rx_free_mem_blks_read_675 mem_rx_free_mem_blks_read 3 675 NULL
114955 +persistent_ram_vmap_709 persistent_ram_vmap 2-1 709 NULL
114956 +sctp_setsockopt_peer_addr_params_734 sctp_setsockopt_peer_addr_params 3 734 NULL
114957 +dvb_video_write_754 dvb_video_write 3 754 NULL
114958 +cfs_trace_allocate_string_buffer_781 cfs_trace_allocate_string_buffer 2 781 NULL
114959 +ath6kl_disconnect_timeout_write_794 ath6kl_disconnect_timeout_write 3 794 NULL
114960 +snd_pcm_drain_811 snd_pcm_drain 0 811 NULL
114961 +if_writecmd_815 if_writecmd 2 815 NULL
114962 +aac_change_queue_depth_825 aac_change_queue_depth 2 825 NULL
114963 +error_state_read_859 error_state_read 6 859 NULL
114964 +o2net_send_message_vec_879 o2net_send_message_vec 4 879 NULL nohasharray
114965 +iwl_dbgfs_fh_reg_read_879 iwl_dbgfs_fh_reg_read 3 879 &o2net_send_message_vec_879
114966 +snd_pcm_action_single_905 snd_pcm_action_single 0 905 NULL
114967 +carl9170_cmd_buf_950 carl9170_cmd_buf 3 950 NULL
114968 +__nodes_weight_956 __nodes_weight 0 956 NULL
114969 +bnx2x_fill_fw_str_968 bnx2x_fill_fw_str 3 968 NULL
114970 +mnt_want_write_975 mnt_want_write 0 975 NULL
114971 +usnic_ib_qp_grp_dump_hdr_989 usnic_ib_qp_grp_dump_hdr 2 989 NULL
114972 +memcmp_990 memcmp 0 990 NULL
114973 +smk_write_cipso2_1021 smk_write_cipso2 3 1021 NULL
114974 +gigaset_initdriver_1060 gigaset_initdriver 2 1060 NULL
114975 +mce_request_packet_1073 mce_request_packet 3 1073 NULL
114976 +agp_create_memory_1075 agp_create_memory 1 1075 NULL
114977 +_scsih_adjust_queue_depth_1083 _scsih_adjust_queue_depth 2 1083 NULL
114978 +llcp_sock_sendmsg_1092 llcp_sock_sendmsg 4 1092 NULL
114979 +nfs4_init_nonuniform_client_string_1097 nfs4_init_nonuniform_client_string 3 1097 NULL
114980 +cfg80211_report_obss_beacon_1133 cfg80211_report_obss_beacon 3 1133 NULL
114981 +i2400m_rx_ctl_1157 i2400m_rx_ctl 4 1157 NULL
114982 +ipc_alloc_1192 ipc_alloc 1 1192 NULL
114983 +ib_create_send_mad_1196 ib_create_send_mad 5 1196 NULL
114984 +pstore_ftrace_knob_write_1198 pstore_ftrace_knob_write 3 1198 NULL
114985 +i2400m_rx_ctl_ack_1199 i2400m_rx_ctl_ack 3 1199 NULL
114986 +dgrp_dpa_read_1204 dgrp_dpa_read 3 1204 NULL
114987 +i2cdev_read_1206 i2cdev_read 3 1206 NULL
114988 +lov_ost_pool_init_1215 lov_ost_pool_init 2 1215 NULL
114989 +fsync_buffers_list_1219 fsync_buffers_list 0 1219 NULL
114990 +kernfs_file_direct_read_1238 kernfs_file_direct_read 3 1238 NULL
114991 +acpi_battery_write_alarm_1240 acpi_battery_write_alarm 3 1240 NULL
114992 +drm_primary_helper_create_plane_1262 drm_primary_helper_create_plane 3 1262 NULL
114993 +ocfs2_extend_file_1266 ocfs2_extend_file 3 1266 NULL
114994 +qla4xxx_change_queue_depth_1268 qla4xxx_change_queue_depth 2 1268 NULL
114995 +ioctl_private_iw_point_1273 ioctl_private_iw_point 7 1273 NULL
114996 +SyS_flistxattr_1287 SyS_flistxattr 3 1287 NULL
114997 +tx_frag_in_process_called_read_1290 tx_frag_in_process_called_read 3 1290 NULL
114998 +posix_acl_xattr_set_1301 posix_acl_xattr_set 4 1301 NULL
114999 +ffs_1322 ffs 0 1322 NULL
115000 +qlcnic_pci_sriov_configure_1327 qlcnic_pci_sriov_configure 2 1327 NULL
115001 +btrfs_submit_compressed_write_1347 btrfs_submit_compressed_write 5 1347 NULL
115002 +snd_pcm_lib_write1_1358 snd_pcm_lib_write1 0-3 1358 NULL
115003 +ipx_sendmsg_1362 ipx_sendmsg 4 1362 NULL
115004 +fw_stats_raw_read_1369 fw_stats_raw_read 3 1369 NULL
115005 +ocfs2_prepare_inode_for_write_1372 ocfs2_prepare_inode_for_write 3 1372 NULL
115006 +sctp_setsockopt_initmsg_1383 sctp_setsockopt_initmsg 3 1383 NULL
115007 +do_msgsnd_1387 do_msgsnd 4 1387 NULL
115008 +SYSC_io_getevents_1392 SYSC_io_getevents 3 1392 NULL
115009 +cfs_trace_copyout_string_1416 cfs_trace_copyout_string 2 1416 NULL
115010 +init_rs_internal_1436 init_rs_internal 1 1436 NULL
115011 +stack_max_size_read_1445 stack_max_size_read 3 1445 NULL
115012 +tx_queue_len_read_1463 tx_queue_len_read 3 1463 NULL
115013 +xprt_alloc_1475 xprt_alloc 2 1475 NULL
115014 +SYSC_syslog_1477 SYSC_syslog 3 1477 NULL
115015 +sta_num_ps_buf_frames_read_1488 sta_num_ps_buf_frames_read 3 1488 NULL
115016 +fpregs_set_1497 fpregs_set 4 1497 NULL
115017 +tomoyo_round2_1518 tomoyo_round2 0 1518 NULL
115018 +alloc_perm_bits_1532 alloc_perm_bits 2 1532 NULL
115019 +ath6kl_init_get_fwcaps_1557 ath6kl_init_get_fwcaps 3 1557 NULL
115020 +ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime_1589 ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime 3 1589 NULL
115021 +ipath_ht_handle_hwerrors_1592 ipath_ht_handle_hwerrors 3 1592 NULL
115022 +packet_buffer_init_1607 packet_buffer_init 2 1607 NULL
115023 +btmrvl_hscmd_read_1614 btmrvl_hscmd_read 3 1614 NULL
115024 +v9fs_fid_xattr_get_1618 v9fs_fid_xattr_get 0 1618 NULL
115025 +ikconfig_read_current_1658 ikconfig_read_current 3 1658 NULL
115026 +mei_cl_recv_1665 mei_cl_recv 3 1665 NULL
115027 +rmap_add_1677 rmap_add 3 1677 NULL
115028 +configfs_read_file_1683 configfs_read_file 3 1683 NULL
115029 +iwl_dbgfs_d0i3_refs_read_1705 iwl_dbgfs_d0i3_refs_read 3 1705 NULL
115030 +pdu_write_u_1710 pdu_write_u 3 1710 NULL
115031 +coda_psdev_write_1711 coda_psdev_write 3 1711 NULL
115032 +btrfs_dir_data_len_1714 btrfs_dir_data_len 0 1714 NULL
115033 +internal_create_group_1733 internal_create_group 0 1733 NULL
115034 +dev_irnet_read_1741 dev_irnet_read 3 1741 NULL
115035 +usb_ep_align_maybe_1743 usb_ep_align_maybe 0-3 1743 NULL
115036 +tx_frag_called_read_1748 tx_frag_called_read 3 1748 NULL
115037 +cosa_write_1774 cosa_write 3 1774 NULL
115038 +fcoe_ctlr_device_add_1793 fcoe_ctlr_device_add 3 1793 NULL
115039 +__nodelist_scnprintf_1815 __nodelist_scnprintf 2-0 1815 NULL
115040 +sb_issue_zeroout_1884 sb_issue_zeroout 3 1884 NULL
115041 +rx_defrag_called_read_1897 rx_defrag_called_read 3 1897 NULL
115042 +nfs_parse_server_name_1899 nfs_parse_server_name 2 1899 NULL
115043 +SyS_add_key_1900 SyS_add_key 4 1900 NULL
115044 +uhid_char_read_1920 uhid_char_read 3 1920 NULL
115045 +tx_tx_retry_data_read_1926 tx_tx_retry_data_read 3 1926 NULL
115046 +bdev_erase_1933 bdev_erase 3 1933 NULL
115047 +ext3_fiemap_1936 ext3_fiemap 4 1936 NULL
115048 +cyttsp_probe_1940 cyttsp_probe 4 1940 NULL
115049 +ieee80211_if_fmt_dot11MeshConfirmTimeout_1945 ieee80211_if_fmt_dot11MeshConfirmTimeout 3 1945 NULL
115050 +__assign_irq_vector_1961 __assign_irq_vector 0 1961 NULL
115051 +ivtv_v4l2_read_1964 ivtv_v4l2_read 3 1964 NULL
115052 +sel_read_avc_hash_stats_1984 sel_read_avc_hash_stats 3 1984 NULL
115053 +gpio_power_write_1991 gpio_power_write 3 1991 NULL
115054 +__alloc_bootmem_node_1992 __alloc_bootmem_node 2 1992 NULL
115055 +rx_rx_defrag_read_2010 rx_rx_defrag_read 3 2010 NULL
115056 +ocfs2_global_qinit_alloc_2018 ocfs2_global_qinit_alloc 0 2018 NULL
115057 +write_flush_pipefs_2021 write_flush_pipefs 3 2021 NULL
115058 +BcmCopySection_2035 BcmCopySection 5 2035 NULL
115059 +ath6kl_fwlog_mask_read_2050 ath6kl_fwlog_mask_read 3 2050 NULL
115060 +ocfs2_expand_inline_dir_2063 ocfs2_expand_inline_dir 3 2063 NULL
115061 +__generic_copy_from_user_intel_2073 __generic_copy_from_user_intel 0-3 2073 NULL
115062 +diva_set_driver_dbg_mask_2077 diva_set_driver_dbg_mask 0 2077 NULL
115063 +iwl_dbgfs_current_sleep_command_read_2081 iwl_dbgfs_current_sleep_command_read 3 2081 NULL
115064 +idetape_chrdev_read_2097 idetape_chrdev_read 3 2097 NULL
115065 +__set_print_fmt_2106 __set_print_fmt 0 2106 NULL
115066 +iwl_dbgfs_log_event_read_2107 iwl_dbgfs_log_event_read 3 2107 NULL
115067 +ecryptfs_encrypt_and_encode_filename_2109 ecryptfs_encrypt_and_encode_filename 6 2109 NULL
115068 +btrfs_file_extent_inline_len_2116 btrfs_file_extent_inline_len 0 2116 NULL
115069 +enable_read_2117 enable_read 3 2117 NULL
115070 +pcf50633_write_block_2124 pcf50633_write_block 2-3 2124 NULL
115071 +check_load_and_stores_2143 check_load_and_stores 2 2143 NULL
115072 +iov_iter_count_2152 iov_iter_count 0 2152 NULL
115073 +__copy_to_user_ll_2157 __copy_to_user_ll 0-3 2157 NULL
115074 +_ore_get_io_state_2166 _ore_get_io_state 3-4-5 2166 NULL
115075 +bio_integrity_alloc_2194 bio_integrity_alloc 3 2194 NULL
115076 +picolcd_debug_reset_write_2195 picolcd_debug_reset_write 3 2195 NULL
115077 +u32_array_read_2219 u32_array_read 3 2219 NULL nohasharray
115078 +mei_dbgfs_read_meclients_2219 mei_dbgfs_read_meclients 3 2219 &u32_array_read_2219
115079 +ieee80211_if_read_dot11MeshHWMPRannInterval_2249 ieee80211_if_read_dot11MeshHWMPRannInterval 3 2249 NULL
115080 +netlbl_secattr_catmap_walk_2255 netlbl_secattr_catmap_walk 0-2 2255 NULL
115081 +sel_write_avc_cache_threshold_2256 sel_write_avc_cache_threshold 3 2256 NULL
115082 +do_update_counters_2259 do_update_counters 4 2259 NULL
115083 +ath6kl_wmi_bssinfo_event_rx_2275 ath6kl_wmi_bssinfo_event_rx 3 2275 NULL
115084 +debug_debug5_read_2291 debug_debug5_read 3 2291 NULL
115085 +sr_read_cmd_2299 sr_read_cmd 5 2299 NULL
115086 +kvm_clear_guest_page_2308 kvm_clear_guest_page 4 2308 NULL
115087 +intel_sdvo_set_value_2311 intel_sdvo_set_value 4 2311 NULL
115088 +picolcd_fb_write_2318 picolcd_fb_write 3 2318 NULL nohasharray
115089 +hfsplus_find_init_2318 hfsplus_find_init 0 2318 &picolcd_fb_write_2318
115090 +dice_hwdep_read_2326 dice_hwdep_read 3 2326 NULL
115091 +__erst_read_to_erange_2341 __erst_read_to_erange 0 2341 NULL
115092 +zr364xx_read_2354 zr364xx_read 3 2354 NULL
115093 +viafb_iga2_odev_proc_write_2363 viafb_iga2_odev_proc_write 3 2363 NULL
115094 +xfs_buf_map_from_irec_2368 xfs_buf_map_from_irec 5 2368 NULL nohasharray
115095 +rose_recvmsg_2368 rose_recvmsg 4 2368 &xfs_buf_map_from_irec_2368
115096 +il_dbgfs_sensitivity_read_2370 il_dbgfs_sensitivity_read 3 2370 NULL
115097 +rxpipe_rx_prep_beacon_drop_read_2403 rxpipe_rx_prep_beacon_drop_read 3 2403 NULL
115098 +isdn_v110_open_2418 isdn_v110_open 3 2418 NULL
115099 +raid1_size_2419 raid1_size 0-2 2419 NULL
115100 +arch_msi_check_device_2449 arch_msi_check_device 0 2449 NULL
115101 +b43legacy_debugfs_read_2473 b43legacy_debugfs_read 3 2473 NULL
115102 +wiphy_new_2482 wiphy_new 2 2482 NULL
115103 +bio_alloc_bioset_2484 bio_alloc_bioset 2 2484 NULL
115104 +squashfs_read_fragment_index_table_2506 squashfs_read_fragment_index_table 4 2506 NULL
115105 +v9fs_cached_file_read_2514 v9fs_cached_file_read 3 2514 NULL
115106 +ext4_get_inode_loc_2516 ext4_get_inode_loc 0 2516 NULL
115107 +batadv_tvlv_container_list_size_2524 batadv_tvlv_container_list_size 0 2524 NULL
115108 +smk_write_syslog_2529 smk_write_syslog 3 2529 NULL
115109 +__ceph_setxattr_2532 __ceph_setxattr 4 2532 NULL
115110 +gspca_dev_probe_2570 gspca_dev_probe 4 2570 NULL
115111 +pcm_sanity_check_2574 pcm_sanity_check 0 2574 NULL
115112 +mdc_max_rpcs_in_flight_seq_write_2594 mdc_max_rpcs_in_flight_seq_write 3 2594 NULL
115113 +slot_bytes_2609 slot_bytes 0 2609 NULL
115114 +smk_write_logging_2618 smk_write_logging 3 2618 NULL
115115 +switch_status_2629 switch_status 5 2629 NULL
115116 +tcp_xmit_size_goal_2661 tcp_xmit_size_goal 2 2661 NULL
115117 +osc_build_ppga_2670 osc_build_ppga 2 2670 NULL
115118 +ffs_ep0_read_2672 ffs_ep0_read 3 2672 NULL
115119 +oti6858_write_2692 oti6858_write 4 2692 NULL
115120 +nfc_llcp_send_ui_frame_2702 nfc_llcp_send_ui_frame 5 2702 NULL
115121 +memcpy_fromiovecend_2707 memcpy_fromiovecend 3-4 2707 NULL
115122 +lprocfs_stats_counter_size_2708 lprocfs_stats_counter_size 0 2708 NULL
115123 +xfs_readdir_2767 xfs_readdir 3 2767 NULL
115124 +fsl_edma_alloc_desc_2769 fsl_edma_alloc_desc 2 2769 NULL
115125 +mon_bin_ioctl_2771 mon_bin_ioctl 3 2771 NULL
115126 +set_msr_hyperv_pw_2785 set_msr_hyperv_pw 3 2785 NULL
115127 +device_add_attrs_2789 device_add_attrs 0 2789 NULL
115128 +iwl_dbgfs_clear_ucode_statistics_write_2804 iwl_dbgfs_clear_ucode_statistics_write 3 2804 NULL
115129 +sel_read_enforce_2828 sel_read_enforce 3 2828 NULL
115130 +vb2_dc_get_userptr_2829 vb2_dc_get_userptr 2-3 2829 NULL nohasharray
115131 +snd_pcm_reset_2829 snd_pcm_reset 0 2829 &vb2_dc_get_userptr_2829
115132 +wait_for_avail_2847 wait_for_avail 0 2847 NULL
115133 +sfq_alloc_2861 sfq_alloc 1 2861 NULL
115134 +irnet_ctrl_read_2863 irnet_ctrl_read 4 2863 NULL
115135 +move_addr_to_user_2868 move_addr_to_user 2 2868 NULL
115136 +nla_padlen_2883 nla_padlen 1 2883 NULL
115137 +cmm_write_2896 cmm_write 3 2896 NULL
115138 +osc_import_seq_write_2923 osc_import_seq_write 3 2923 NULL
115139 +xfs_trans_get_buf_map_2927 xfs_trans_get_buf_map 4 2927 NULL
115140 +nes_read_indexed_2946 nes_read_indexed 0 2946 NULL
115141 +tm6000_i2c_recv_regs16_2949 tm6000_i2c_recv_regs16 5 2949 NULL
115142 +i40e_dbg_prep_dump_buf_2951 i40e_dbg_prep_dump_buf 2 2951 NULL
115143 +set_fast_connectable_2952 set_fast_connectable 4 2952 NULL
115144 +free_area_init_core_2962 free_area_init_core 2-3 2962 NULL
115145 +bio_setup_sector_2970 bio_setup_sector 3 2970 NULL
115146 +do_strnlen_user_2976 do_strnlen_user 0-2 2976 NULL
115147 +p9_nr_pages_2992 p9_nr_pages 0-2 2992 NULL
115148 +lov_stripetype_seq_write_3013 lov_stripetype_seq_write 3 3013 NULL
115149 +do_dmabuf_dirty_sou_3017 do_dmabuf_dirty_sou 7 3017 NULL
115150 +depth_write_3021 depth_write 3 3021 NULL
115151 +snd_azf3328_codec_inl_3022 snd_azf3328_codec_inl 0 3022 NULL
115152 +nvme_split_and_submit_3027 nvme_split_and_submit 3 3027 NULL
115153 +kvm_unmap_hva_3028 kvm_unmap_hva 2 3028 NULL
115154 +xfrm_dst_alloc_copy_3034 xfrm_dst_alloc_copy 3 3034 NULL
115155 +lpfc_idiag_mbxacc_write_3038 lpfc_idiag_mbxacc_write 3 3038 NULL nohasharray
115156 +iwl_dbgfs_sleep_level_override_read_3038 iwl_dbgfs_sleep_level_override_read 3 3038 &lpfc_idiag_mbxacc_write_3038
115157 +nr_free_buffer_pages_3044 nr_free_buffer_pages 0 3044 NULL
115158 +il3945_ucode_rx_stats_read_3048 il3945_ucode_rx_stats_read 3 3048 NULL
115159 +qp_alloc_ppn_set_3068 qp_alloc_ppn_set 2-4 3068 NULL
115160 +__blk_end_bidi_request_3070 __blk_end_bidi_request 3-4 3070 NULL
115161 +dac960_user_command_proc_write_3071 dac960_user_command_proc_write 3 3071 NULL
115162 +read_file_antenna_diversity_3077 read_file_antenna_diversity 3 3077 NULL
115163 +ttusb2_msg_3100 ttusb2_msg 4 3100 NULL
115164 +rb_alloc_3102 rb_alloc 1 3102 NULL
115165 +simple_write_to_buffer_3122 simple_write_to_buffer 5-2 3122 NULL
115166 +print_time_3132 print_time 0 3132 NULL
115167 +fill_write_buffer_3142 fill_write_buffer 3 3142 NULL
115168 +CIFSSMBSetPosixACL_3154 CIFSSMBSetPosixACL 5 3154 NULL
115169 +uv_num_possible_blades_3177 uv_num_possible_blades 0 3177 NULL
115170 +uinput_ioctl_handler_3181 uinput_ioctl_handler 2 3181 NULL nohasharray
115171 +uvc_video_stats_dump_3181 uvc_video_stats_dump 3 3181 &uinput_ioctl_handler_3181
115172 +compat_do_ip6t_set_ctl_3184 compat_do_ip6t_set_ctl 4 3184 NULL
115173 +mempool_create_node_3191 mempool_create_node 1 3191 NULL
115174 +alloc_context_3194 alloc_context 1 3194 NULL
115175 +shmem_pread_slow_3198 shmem_pread_slow 3-2 3198 NULL
115176 +codec_reg_write_file_3204 codec_reg_write_file 3 3204 NULL
115177 +SyS_sendto_3219 SyS_sendto 6 3219 NULL
115178 +btrfs_prealloc_file_range_3227 btrfs_prealloc_file_range 3 3227 NULL
115179 +kimage_crash_alloc_3233 kimage_crash_alloc 3 3233 NULL
115180 +do_read_log_to_user_3236 do_read_log_to_user 4 3236 NULL
115181 +ext3_xattr_find_entry_3237 ext3_xattr_find_entry 0 3237 NULL
115182 +key_key_read_3241 key_key_read 3 3241 NULL
115183 +__ilog2_u64_3284 __ilog2_u64 0 3284 NULL
115184 +ieee80211_if_write_beacon_loss_3296 ieee80211_if_write_beacon_loss 3 3296 NULL
115185 +cgroup_name_3300 cgroup_name 3 3300 NULL
115186 +__set_extent_bit_3305 __set_extent_bit 0 3305 NULL
115187 +__iovec_copy_from_user_inatomic_3314 __iovec_copy_from_user_inatomic 4-3-0 3314 NULL
115188 +_iwl_dbgfs_d3_sram_write_3315 _iwl_dbgfs_d3_sram_write 3 3315 NULL
115189 +dbDiscardAG_3322 dbDiscardAG 3 3322 NULL
115190 +read_from_oldmem_3337 read_from_oldmem 2 3337 NULL
115191 +sysfs_create_group_3339 sysfs_create_group 0 3339 NULL
115192 +tty_port_register_device_attr_3341 tty_port_register_device_attr 3 3341 NULL
115193 +il_dbgfs_interrupt_read_3351 il_dbgfs_interrupt_read 3 3351 NULL
115194 +gsm_control_rls_3353 gsm_control_rls 3 3353 NULL
115195 +scnprintf_3360 scnprintf 0-2 3360 NULL
115196 +sr_read_3366 sr_read 3 3366 NULL
115197 +mtdchar_writeoob_3393 mtdchar_writeoob 4 3393 NULL
115198 +isdn_readbchan_3401 isdn_readbchan 0-5 3401 NULL
115199 +mei_io_cb_alloc_resp_buf_3414 mei_io_cb_alloc_resp_buf 2 3414 NULL
115200 +pci_add_cap_save_buffer_3426 pci_add_cap_save_buffer 3 3426 NULL
115201 +crystalhd_create_dio_pool_3427 crystalhd_create_dio_pool 2 3427 NULL
115202 +SyS_msgsnd_3436 SyS_msgsnd 3 3436 NULL
115203 +softsynth_write_3455 softsynth_write 3 3455 NULL
115204 +snd_pcm_lib_readv_transfer_3464 snd_pcm_lib_readv_transfer 5-4-2 3464 NULL
115205 +security_context_to_sid_default_3492 security_context_to_sid_default 2 3492 NULL
115206 +xfrm_migrate_msgsize_3496 xfrm_migrate_msgsize 1 3496 NULL
115207 +mem_tx_free_mem_blks_read_3521 mem_tx_free_mem_blks_read 3 3521 NULL
115208 +SyS_semtimedop_3532 SyS_semtimedop 3 3532 NULL
115209 +SyS_readv_3539 SyS_readv 3 3539 NULL
115210 +btrfs_dir_name_len_3549 btrfs_dir_name_len 0 3549 NULL
115211 +alloc_smp_resp_3566 alloc_smp_resp 1 3566 NULL
115212 +evtchn_read_3569 evtchn_read 3 3569 NULL
115213 +ll_track_ppid_seq_write_3582 ll_track_ppid_seq_write 3 3582 NULL
115214 +vc_resize_3585 vc_resize 3-2 3585 NULL
115215 +kvm_mmu_notifier_change_pte_3596 kvm_mmu_notifier_change_pte 3 3596 NULL
115216 +sctp_getsockopt_events_3607 sctp_getsockopt_events 2 3607 NULL
115217 +edac_mc_alloc_3611 edac_mc_alloc 4 3611 NULL
115218 +tx_tx_starts_read_3617 tx_tx_starts_read 3 3617 NULL
115219 +aligned_kmalloc_3628 aligned_kmalloc 1 3628 NULL
115220 +ath6kl_disconnect_timeout_read_3650 ath6kl_disconnect_timeout_read 3 3650 NULL
115221 +i915_compat_ioctl_3656 i915_compat_ioctl 2 3656 NULL
115222 +_iwl_dbgfs_tx_flush_write_3675 _iwl_dbgfs_tx_flush_write 3 3675 NULL
115223 +snd_m3_assp_read_3703 snd_m3_assp_read 0 3703 NULL
115224 +ci_ll_write_3740 ci_ll_write 4 3740 NULL
115225 +sctp_setsockopt_auth_key_3793 sctp_setsockopt_auth_key 3 3793 NULL
115226 +ncp_file_write_3813 ncp_file_write 3 3813 NULL
115227 +llc_ui_recvmsg_3826 llc_ui_recvmsg 4 3826 NULL
115228 +hfsplus_direct_IO_3835 hfsplus_direct_IO 4 3835 NULL
115229 +create_one_cdev_3852 create_one_cdev 2 3852 NULL
115230 +smk_read_onlycap_3855 smk_read_onlycap 3 3855 NULL
115231 +get_fd_set_3866 get_fd_set 1 3866 NULL
115232 +garp_attr_create_3883 garp_attr_create 3 3883 NULL
115233 +efivarfs_file_read_3893 efivarfs_file_read 3 3893 NULL
115234 +nvram_write_3894 nvram_write 3 3894 NULL
115235 +pipeline_pre_proc_swi_read_3898 pipeline_pre_proc_swi_read 3 3898 NULL
115236 +comedi_buf_read_n_available_3899 comedi_buf_read_n_available 0 3899 NULL
115237 +vcs_write_3910 vcs_write 3 3910 NULL
115238 +SyS_move_pages_3920 SyS_move_pages 2 3920 NULL
115239 +brcmf_debugfs_fws_stats_read_3947 brcmf_debugfs_fws_stats_read 3 3947 NULL
115240 +mite_bytes_written_to_memory_lb_3987 mite_bytes_written_to_memory_lb 0 3987 NULL
115241 +do_add_counters_3992 do_add_counters 3 3992 NULL
115242 +obd_alloc_memmd_4002 obd_alloc_memmd 0 4002 NULL
115243 +userspace_status_4004 userspace_status 4 4004 NULL
115244 +mei_write_4005 mei_write 3 4005 NULL nohasharray
115245 +xfs_check_block_4005 xfs_check_block 4 4005 &mei_write_4005
115246 +snd_hdsp_capture_copy_4011 snd_hdsp_capture_copy 5 4011 NULL
115247 +blk_end_request_4024 blk_end_request 3 4024 NULL
115248 +ext4_xattr_find_entry_4025 ext4_xattr_find_entry 0 4025 NULL
115249 +mtip_hw_read_registers_4037 mtip_hw_read_registers 3 4037 NULL
115250 +read_file_queues_4078 read_file_queues 3 4078 NULL
115251 +fbcon_do_set_font_4079 fbcon_do_set_font 2-3 4079 NULL
115252 +tm6000_read_4151 tm6000_read 3 4151 NULL
115253 +mpt_raid_phys_disk_get_num_paths_4155 mpt_raid_phys_disk_get_num_paths 0 4155 NULL
115254 +msg_bits_4158 msg_bits 0-3-4 4158 NULL
115255 +get_alua_req_4166 get_alua_req 3 4166 NULL
115256 +blk_dropped_read_4168 blk_dropped_read 3 4168 NULL
115257 +read_file_bool_4180 read_file_bool 3 4180 NULL
115258 +vring_new_virtqueue_4199 vring_new_virtqueue 2 4199 NULL
115259 +_osd_req_list_objects_4204 _osd_req_list_objects 6 4204 NULL
115260 +__snd_gf1_read_addr_4210 __snd_gf1_read_addr 0 4210 NULL
115261 +ath6kl_force_roam_write_4282 ath6kl_force_roam_write 3 4282 NULL
115262 +goldfish_audio_write_4284 goldfish_audio_write 3 4284 NULL
115263 +get_connectors_for_crtc_4291 get_connectors_for_crtc 0 4291 NULL
115264 +__usbnet_read_cmd_4299 __usbnet_read_cmd 7 4299 NULL
115265 +dvb_ringbuffer_pkt_read_user_4303 dvb_ringbuffer_pkt_read_user 2-3-5 4303 NULL
115266 +count_strings_4315 count_strings 0 4315 NULL
115267 +nouveau_fifo_create__4327 nouveau_fifo_create_ 5-6 4327 NULL
115268 +snd_rawmidi_kernel_read_4328 snd_rawmidi_kernel_read 3 4328 NULL
115269 +ima_eventdigest_init_common_4338 ima_eventdigest_init_common 2 4338 NULL
115270 +__copy_from_user_inatomic_4365 __copy_from_user_inatomic 3-0 4365 NULL
115271 +irda_sendmsg_4388 irda_sendmsg 4 4388 NULL
115272 +cxacru_cm_get_array_4412 cxacru_cm_get_array 4 4412 NULL nohasharray
115273 +access_process_vm_4412 access_process_vm 0 4412 &cxacru_cm_get_array_4412
115274 +libfc_vport_create_4415 libfc_vport_create 2 4415 NULL
115275 +rtw_android_get_rssi_4421 rtw_android_get_rssi 0 4421 NULL
115276 +do_pages_stat_4437 do_pages_stat 2 4437 NULL
115277 +at76_set_card_command_4471 at76_set_card_command 4 4471 NULL
115278 +snd_seq_expand_var_event_4481 snd_seq_expand_var_event 0-5 4481 NULL
115279 +vmbus_establish_gpadl_4495 vmbus_establish_gpadl 3 4495 NULL
115280 +set_link_security_4502 set_link_security 4 4502 NULL
115281 +ll_max_readahead_per_file_mb_seq_write_4531 ll_max_readahead_per_file_mb_seq_write 3 4531 NULL
115282 +tty_register_device_4544 tty_register_device 2 4544 NULL
115283 +fsl_edma_prep_slave_sg_4555 fsl_edma_prep_slave_sg 3 4555 NULL
115284 +btrfs_file_extent_inline_item_len_4575 btrfs_file_extent_inline_item_len 0 4575 NULL
115285 +xfs_buf_get_maps_4581 xfs_buf_get_maps 2 4581 NULL
115286 +bch_alloc_4593 bch_alloc 1 4593 NULL
115287 +ll_rw_extents_stats_seq_write_4633 ll_rw_extents_stats_seq_write 3 4633 NULL
115288 +iwl_dbgfs_tx_queue_read_4635 iwl_dbgfs_tx_queue_read 3 4635 NULL
115289 +skb_add_data_nocache_4682 skb_add_data_nocache 4 4682 NULL
115290 +cx18_read_pos_4683 cx18_read_pos 3 4683 NULL
115291 +short_retry_limit_read_4687 short_retry_limit_read 3 4687 NULL
115292 +kone_receive_4690 kone_receive 4 4690 NULL
115293 +hash_netportnet6_expire_4702 hash_netportnet6_expire 4 4702 NULL
115294 +cxgbi_alloc_big_mem_4707 cxgbi_alloc_big_mem 1 4707 NULL
115295 +show_header_4722 show_header 3 4722 NULL nohasharray
115296 +ati_create_gatt_pages_4722 ati_create_gatt_pages 1 4722 &show_header_4722
115297 +ll_rw_offset_stats_seq_write_4736 ll_rw_offset_stats_seq_write 3 4736 NULL nohasharray
115298 +bitmap_startwrite_4736 bitmap_startwrite 2 4736 &ll_rw_offset_stats_seq_write_4736
115299 +lu_buf_alloc_4753 lu_buf_alloc 2 4753 NULL
115300 +pwr_rcvd_bcns_cnt_read_4774 pwr_rcvd_bcns_cnt_read 3 4774 NULL
115301 +create_subvol_4791 create_subvol 4 4791 NULL
115302 +ncp__vol2io_4804 ncp__vol2io 5 4804 NULL
115303 +C_SYSC_setsockopt_4806 C_SYSC_setsockopt 5 4806 NULL
115304 +repair_io_failure_4815 repair_io_failure 4-3 4815 NULL
115305 +comedi_buf_write_free_4847 comedi_buf_write_free 2 4847 NULL
115306 +gigaset_if_receive_4861 gigaset_if_receive 3 4861 NULL
115307 +key_tx_spec_read_4862 key_tx_spec_read 3 4862 NULL
115308 +ocfs2_defrag_extent_4873 ocfs2_defrag_extent 2 4873 NULL
115309 +hid_register_field_4874 hid_register_field 2-3 4874 NULL
115310 +vga_arb_read_4886 vga_arb_read 3 4886 NULL
115311 +ieee80211_if_fmt_ave_beacon_4941 ieee80211_if_fmt_ave_beacon 3 4941 NULL
115312 +compat_rawv6_setsockopt_4967 compat_rawv6_setsockopt 5 4967 NULL
115313 +ath10k_read_chip_id_4969 ath10k_read_chip_id 3 4969 NULL
115314 +skb_network_header_len_4971 skb_network_header_len 0 4971 NULL
115315 +ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval_4976 ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval 3 4976 NULL
115316 +compat_SyS_ipc_5000 compat_SyS_ipc 3 5000 NULL
115317 +do_mincore_5018 do_mincore 0-2-1 5018 NULL
115318 +btrfs_punch_hole_5041 btrfs_punch_hole 2 5041 NULL
115319 +cfg80211_rx_mgmt_5056 cfg80211_rx_mgmt 5 5056 NULL
115320 +ocfs2_check_range_for_holes_5066 ocfs2_check_range_for_holes 2-3 5066 NULL
115321 +snd_mixart_BA1_read_5082 snd_mixart_BA1_read 5 5082 NULL
115322 +snd_emu10k1_ptr20_read_5087 snd_emu10k1_ptr20_read 0 5087 NULL
115323 +kfifo_copy_from_user_5091 kfifo_copy_from_user 3-4-0 5091 NULL nohasharray
115324 +get_random_bytes_5091 get_random_bytes 2 5091 &kfifo_copy_from_user_5091 nohasharray
115325 +blk_rq_sectors_5091 blk_rq_sectors 0 5091 &get_random_bytes_5091
115326 +sound_write_5102 sound_write 3 5102 NULL
115327 +i40e_dbg_netdev_ops_write_5117 i40e_dbg_netdev_ops_write 3 5117 NULL
115328 +qib_7220_handle_hwerrors_5142 qib_7220_handle_hwerrors 3 5142 NULL
115329 +__uwb_addr_print_5161 __uwb_addr_print 2 5161 NULL
115330 +iwl_dbgfs_status_read_5171 iwl_dbgfs_status_read 3 5171 NULL
115331 +acpi_pcc_get_sqty_5176 acpi_pcc_get_sqty 0 5176 NULL
115332 +trf7970a_read_cont_5179 trf7970a_read_cont 4 5179 NULL
115333 +ppp_cp_parse_cr_5214 ppp_cp_parse_cr 4 5214 NULL
115334 +dwc2_hcd_urb_alloc_5217 dwc2_hcd_urb_alloc 2 5217 NULL
115335 +ath6kl_debug_roam_tbl_event_5224 ath6kl_debug_roam_tbl_event 3 5224 NULL
115336 +r592_write_fifo_pio_5315 r592_write_fifo_pio 3 5315 NULL
115337 +sbc_get_write_same_sectors_5317 sbc_get_write_same_sectors 0 5317 NULL
115338 +pwr_elp_enter_read_5324 pwr_elp_enter_read 3 5324 NULL
115339 +uinput_ioctl_5342 uinput_ioctl 2 5342 NULL
115340 +cq_free_res_5355 cq_free_res 5 5355 NULL
115341 +ps_pspoll_utilization_read_5361 ps_pspoll_utilization_read 3 5361 NULL
115342 +cciss_allocate_sg_chain_blocks_5368 cciss_allocate_sg_chain_blocks 3-2 5368 NULL
115343 +xfs_efd_init_5463 xfs_efd_init 3 5463 NULL
115344 +ll_xattr_cache_refill_5468 ll_xattr_cache_refill 0 5468 NULL
115345 +kernfs_fop_write_5471 kernfs_fop_write 3 5471 NULL
115346 +xfs_efi_init_5476 xfs_efi_init 2 5476 NULL
115347 +pci_enable_msix_exact_5482 pci_enable_msix_exact 3-0 5482 NULL
115348 +cifs_security_flags_proc_write_5484 cifs_security_flags_proc_write 3 5484 NULL
115349 +tty_write_5494 tty_write 3 5494 NULL
115350 +tomoyo_update_domain_5498 tomoyo_update_domain 2 5498 NULL nohasharray
115351 +ieee80211_if_fmt_last_beacon_5498 ieee80211_if_fmt_last_beacon 3 5498 &tomoyo_update_domain_5498
115352 +__max_nr_grant_frames_5505 __max_nr_grant_frames 0 5505 NULL
115353 +ieee80211_if_fmt_auto_open_plinks_5534 ieee80211_if_fmt_auto_open_plinks 3 5534 NULL
115354 +get_entry_msg_len_5552 get_entry_msg_len 0 5552 NULL
115355 +le_readq_5557 le_readq 0 5557 NULL
115356 +inw_5558 inw 0 5558 NULL
115357 +bioset_create_5580 bioset_create 1 5580 NULL
115358 +oz_ep_alloc_5587 oz_ep_alloc 1 5587 NULL
115359 +__remove_suid_5618 __remove_suid 0 5618 NULL
115360 +SYSC_fsetxattr_5639 SYSC_fsetxattr 4 5639 NULL
115361 +ext4_xattr_get_5661 ext4_xattr_get 0 5661 NULL
115362 +posix_clock_register_5662 posix_clock_register 2 5662 NULL
115363 +get_arg_5694 get_arg 3 5694 NULL
115364 +subbuf_read_actor_5708 subbuf_read_actor 3 5708 NULL
115365 +vmw_kms_readback_5727 vmw_kms_readback 6 5727 NULL
115366 +rts51x_transfer_data_partial_5735 rts51x_transfer_data_partial 6 5735 NULL
115367 +sctp_setsockopt_autoclose_5775 sctp_setsockopt_autoclose 3 5775 NULL
115368 +__vxge_hw_blockpool_malloc_5786 __vxge_hw_blockpool_malloc 2 5786 NULL
115369 +nvme_trans_bdev_char_page_5797 nvme_trans_bdev_char_page 3 5797 NULL
115370 +skb_copy_datagram_iovec_5806 skb_copy_datagram_iovec 2-4 5806 NULL
115371 +nv50_disp_pioc_create__5812 nv50_disp_pioc_create_ 5 5812 NULL
115372 +ceph_x_encrypt_buflen_5829 ceph_x_encrypt_buflen 0-1 5829 NULL
115373 +ceph_msg_new_5846 ceph_msg_new 2 5846 NULL
115374 +setup_req_5848 setup_req 3 5848 NULL
115375 +ria_page_count_5849 ria_page_count 0 5849 NULL
115376 +rx_filter_max_arp_queue_dep_read_5851 rx_filter_max_arp_queue_dep_read 3 5851 NULL
115377 +uinput_compat_ioctl_5861 uinput_compat_ioctl 2 5861 NULL
115378 +lprocfs_fid_width_seq_write_5889 lprocfs_fid_width_seq_write 3 5889 NULL
115379 +port_show_regs_5904 port_show_regs 3 5904 NULL
115380 +rbd_segment_length_5907 rbd_segment_length 0-3-2 5907 NULL
115381 +uhci_debug_read_5911 uhci_debug_read 3 5911 NULL
115382 +lbs_highsnr_read_5931 lbs_highsnr_read 3 5931 NULL
115383 +ps_poll_ps_poll_timeouts_read_5934 ps_poll_ps_poll_timeouts_read 3 5934 NULL
115384 +edac_device_alloc_ctl_info_5941 edac_device_alloc_ctl_info 1 5941 NULL
115385 +ll_statahead_one_5962 ll_statahead_one 3 5962 NULL
115386 +__apu_get_register_5967 __apu_get_register 0 5967 NULL
115387 +ieee80211_if_fmt_rc_rateidx_mask_5ghz_5971 ieee80211_if_fmt_rc_rateidx_mask_5ghz 3 5971 NULL
115388 +SyS_semop_5980 SyS_semop 3 5980 NULL
115389 +alloc_msg_6072 alloc_msg 1 6072 NULL
115390 +sctp_setsockopt_connectx_6073 sctp_setsockopt_connectx 3 6073 NULL
115391 +rts51x_ms_rw_multi_sector_6076 rts51x_ms_rw_multi_sector 3-4 6076 NULL
115392 +__mnt_want_write_6091 __mnt_want_write 0 6091 NULL
115393 +ipmi_addr_length_6110 ipmi_addr_length 0 6110 NULL nohasharray
115394 +force_static_address_read_6110 force_static_address_read 3 6110 &ipmi_addr_length_6110
115395 +dfs_global_file_write_6112 dfs_global_file_write 3 6112 NULL
115396 +nouveau_parent_create__6131 nouveau_parent_create_ 7 6131 NULL
115397 +ieee80211_if_fmt_beacon_timeout_6153 ieee80211_if_fmt_beacon_timeout 3 6153 NULL
115398 +ivtv_copy_buf_to_user_6159 ivtv_copy_buf_to_user 4 6159 NULL
115399 +maybe_insert_hole_6167 maybe_insert_hole 3 6167 NULL
115400 +wl1251_cmd_template_set_6172 wl1251_cmd_template_set 4 6172 NULL
115401 +SyS_setgroups_6182 SyS_setgroups 1 6182 NULL
115402 +mxt_show_instance_6207 mxt_show_instance 2-0 6207 NULL
115403 +v4l2_ctrl_new_std_menu_6221 v4l2_ctrl_new_std_menu 4 6221 NULL
115404 +mqueue_read_file_6228 mqueue_read_file 3 6228 NULL
115405 +f_hidg_read_6238 f_hidg_read 3 6238 NULL
115406 +fbcon_prepare_logo_6246 fbcon_prepare_logo 5 6246 NULL
115407 +of_gpio_count_6270 of_gpio_count 0 6270 NULL
115408 +tx_tx_start_null_frame_read_6281 tx_tx_start_null_frame_read 3 6281 NULL
115409 +snd_hda_override_conn_list_6282 snd_hda_override_conn_list 3-0 6282 NULL nohasharray
115410 +xenbus_file_write_6282 xenbus_file_write 3 6282 &snd_hda_override_conn_list_6282
115411 +posix_acl_fix_xattr_to_user_6283 posix_acl_fix_xattr_to_user 2 6283 NULL
115412 +serial_port_in_6291 serial_port_in 0 6291 NULL
115413 +qlcnic_sriov_alloc_bc_msg_6309 qlcnic_sriov_alloc_bc_msg 2 6309 NULL
115414 +hfa384x_inw_6329 hfa384x_inw 0 6329 NULL nohasharray
115415 +SyS_mincore_6329 SyS_mincore 1-2 6329 &hfa384x_inw_6329
115416 +fuse_get_req_for_background_6337 fuse_get_req_for_background 2 6337 NULL
115417 +ucs2_strnlen_6342 ucs2_strnlen 0 6342 NULL
115418 +regcache_sync_block_raw_6350 regcache_sync_block_raw 5-4 6350 NULL
115419 +mei_dbgfs_read_devstate_6352 mei_dbgfs_read_devstate 3 6352 NULL
115420 +_proc_do_string_6376 _proc_do_string 2 6376 NULL
115421 +osd_req_read_sg_kern_6378 osd_req_read_sg_kern 5 6378 NULL
115422 +posix_acl_fix_xattr_userns_6420 posix_acl_fix_xattr_userns 4 6420 NULL
115423 +add_transaction_credits_6422 add_transaction_credits 2-3 6422 NULL
115424 +ipr_change_queue_depth_6431 ipr_change_queue_depth 2 6431 NULL
115425 +__alloc_bootmem_node_nopanic_6432 __alloc_bootmem_node_nopanic 2 6432 NULL
115426 +ieee80211_if_fmt_dot11MeshMaxRetries_6476 ieee80211_if_fmt_dot11MeshMaxRetries 3 6476 NULL
115427 +qp_memcpy_from_queue_6479 qp_memcpy_from_queue 5-4 6479 NULL
115428 +cipso_v4_map_lvl_hton_6490 cipso_v4_map_lvl_hton 0 6490 NULL
115429 +dbg_intr_buf_6501 dbg_intr_buf 2 6501 NULL
115430 +mei_read_6507 mei_read 3 6507 NULL
115431 +rndis_set_oid_6547 rndis_set_oid 4 6547 NULL
115432 +wdm_read_6549 wdm_read 3 6549 NULL
115433 +dm_stats_create_6551 dm_stats_create 4-2-3 6551 NULL
115434 +fb_alloc_cmap_6554 fb_alloc_cmap 2 6554 NULL
115435 +SyS_semtimedop_6563 SyS_semtimedop 3 6563 NULL
115436 +snd_pcm_hw_refine_old_user_6586 snd_pcm_hw_refine_old_user 0 6586 NULL
115437 +ecryptfs_filldir_6622 ecryptfs_filldir 3 6622 NULL
115438 +process_rcvd_data_6679 process_rcvd_data 3 6679 NULL
115439 +pvscsi_allocate_rings_6689 pvscsi_allocate_rings 0 6689 NULL
115440 +btrfs_lookup_csums_range_6696 btrfs_lookup_csums_range 2-3 6696 NULL
115441 +ps_pspoll_max_apturn_read_6699 ps_pspoll_max_apturn_read 3 6699 NULL
115442 +bnad_debugfs_write_regrd_6706 bnad_debugfs_write_regrd 3 6706 NULL
115443 +mpeg_read_6708 mpeg_read 3 6708 NULL
115444 +ibmpex_query_sensor_count_6709 ibmpex_query_sensor_count 0 6709 NULL
115445 +video_proc_write_6724 video_proc_write 3 6724 NULL
115446 +posix_acl_xattr_count_6725 posix_acl_xattr_count 0-1 6725 NULL
115447 +kobject_add_varg_6781 kobject_add_varg 0 6781 NULL
115448 +iwl_dbgfs_channels_read_6784 iwl_dbgfs_channels_read 3 6784 NULL
115449 +ieee80211_if_read_6785 ieee80211_if_read 3 6785 NULL
115450 +zone_spanned_pages_in_node_6787 zone_spanned_pages_in_node 0-3-4 6787 NULL
115451 +hdlcdrv_register_6792 hdlcdrv_register 2 6792 NULL
115452 +ll_xattr_cache_find_6798 ll_xattr_cache_find 0 6798 NULL
115453 +tx_tx_done_data_read_6799 tx_tx_done_data_read 3 6799 NULL
115454 +lbs_rdrf_write_6826 lbs_rdrf_write 3 6826 NULL
115455 +calc_pages_for_6838 calc_pages_for 0-2-1 6838 NULL
115456 +mon_bin_read_6841 mon_bin_read 3 6841 NULL
115457 +snd_cs4281_BA0_read_6847 snd_cs4281_BA0_read 5 6847 NULL
115458 +perf_output_sample_ustack_6868 perf_output_sample_ustack 2 6868 NULL
115459 +dio_complete_6879 dio_complete 0-3-2 6879 NULL
115460 +raw_seticmpfilter_6888 raw_seticmpfilter 3 6888 NULL nohasharray
115461 +ieee80211_if_fmt_path_refresh_time_6888 ieee80211_if_fmt_path_refresh_time 3 6888 &raw_seticmpfilter_6888
115462 +dlmfs_file_write_6892 dlmfs_file_write 3 6892 NULL
115463 +proc_sessionid_read_6911 proc_sessionid_read 3 6911 NULL nohasharray
115464 +spi_show_regs_6911 spi_show_regs 3 6911 &proc_sessionid_read_6911 nohasharray
115465 +acm_alloc_minor_6911 acm_alloc_minor 0 6911 &spi_show_regs_6911
115466 +__kfifo_dma_in_finish_r_6913 __kfifo_dma_in_finish_r 2-3 6913 NULL
115467 +cache_do_downcall_6926 cache_do_downcall 3 6926 NULL
115468 +ipath_verbs_send_dma_6929 ipath_verbs_send_dma 6 6929 NULL
115469 +qsfp_cks_6945 qsfp_cks 2-0 6945 NULL
115470 +tg3_nvram_write_block_unbuffered_6955 tg3_nvram_write_block_unbuffered 3 6955 NULL
115471 +pch_uart_hal_read_6961 pch_uart_hal_read 0 6961 NULL
115472 +i40e_dbg_dump_write_6973 i40e_dbg_dump_write 3 6973 NULL nohasharray
115473 +rsa_extract_mpi_6973 rsa_extract_mpi 5 6973 &i40e_dbg_dump_write_6973
115474 +request_key_async_6990 request_key_async 4 6990 NULL
115475 +tpl_write_6998 tpl_write 3 6998 NULL
115476 +r871x_set_wpa_ie_7000 r871x_set_wpa_ie 3 7000 NULL
115477 +cipso_v4_gentag_enum_7006 cipso_v4_gentag_enum 0 7006 NULL
115478 +tracing_cpumask_read_7010 tracing_cpumask_read 3 7010 NULL
115479 +ld_usb_write_7022 ld_usb_write 3 7022 NULL
115480 +wimax_msg_7030 wimax_msg 4 7030 NULL
115481 +ceph_kvmalloc_7033 ceph_kvmalloc 1 7033 NULL
115482 +ipath_get_base_info_7043 ipath_get_base_info 3 7043 NULL
115483 +snd_pcm_oss_bytes_7051 snd_pcm_oss_bytes 2 7051 NULL
115484 +nouveau_device_create__7063 nouveau_device_create_ 7 7063 NULL
115485 +hci_sock_recvmsg_7072 hci_sock_recvmsg 4 7072 NULL
115486 +event_enable_read_7074 event_enable_read 3 7074 NULL
115487 +tipc_send_packet_7091 tipc_send_packet 4 7091 NULL nohasharray
115488 +beacon_interval_read_7091 beacon_interval_read 3 7091 &tipc_send_packet_7091
115489 +pipeline_enc_rx_stat_fifo_int_read_7107 pipeline_enc_rx_stat_fifo_int_read 3 7107 NULL
115490 +osc_resend_count_seq_write_7120 osc_resend_count_seq_write 3 7120 NULL
115491 +qib_format_hwerrors_7133 qib_format_hwerrors 5 7133 NULL
115492 +kvm_mmu_notifier_test_young_7139 kvm_mmu_notifier_test_young 3 7139 NULL
115493 +qlcnic_enable_msix_7144 qlcnic_enable_msix 2 7144 NULL
115494 +__alloc_objio_seg_7203 __alloc_objio_seg 1 7203 NULL
115495 +rx_rate_rx_frames_per_rates_read_7282 rx_rate_rx_frames_per_rates_read 3 7282 NULL
115496 +security_inode_need_killpriv_7322 security_inode_need_killpriv 0 7322 NULL
115497 +pci_vpd_info_field_size_7324 pci_vpd_info_field_size 0 7324 NULL
115498 +mgmt_control_7349 mgmt_control 3 7349 NULL
115499 +at_est2timeout_7365 at_est2timeout 0-1 7365 NULL
115500 +ieee80211_if_read_dot11MeshHWMPactivePathTimeout_7368 ieee80211_if_read_dot11MeshHWMPactivePathTimeout 3 7368 NULL
115501 +ath10k_read_fw_stats_7387 ath10k_read_fw_stats 3 7387 NULL
115502 +hweight_long_7388 hweight_long 0 7388 NULL
115503 +sl_change_mtu_7396 sl_change_mtu 2 7396 NULL
115504 +_ore_add_stripe_unit_7399 _ore_add_stripe_unit 6-3 7399 NULL
115505 +audmux_read_file_7400 audmux_read_file 3 7400 NULL
115506 +readb_7401 readb 0 7401 NULL
115507 +tipc_recvmsg_7402 tipc_recvmsg 4 7402 NULL
115508 +drm_property_create_blob_7414 drm_property_create_blob 2 7414 NULL
115509 +__copy_to_user_nocheck_7443 __copy_to_user_nocheck 0-3 7443 NULL
115510 +ip_options_get_alloc_7448 ip_options_get_alloc 1 7448 NULL
115511 +SYSC_setgroups_7454 SYSC_setgroups 1 7454 NULL
115512 +rt2x00debug_read_queue_stats_7455 rt2x00debug_read_queue_stats 3 7455 NULL
115513 +l2tp_ip6_sendmsg_7461 l2tp_ip6_sendmsg 4 7461 NULL
115514 +garp_request_join_7471 garp_request_join 4 7471 NULL
115515 +snd_pcm_lib_read1_7491 snd_pcm_lib_read1 0-3 7491 NULL
115516 +ahash_instance_headroom_7509 ahash_instance_headroom 0 7509 NULL nohasharray
115517 +sdhci_alloc_host_7509 sdhci_alloc_host 2 7509 &ahash_instance_headroom_7509
115518 +array_zalloc_7519 array_zalloc 1-2 7519 NULL
115519 +sk_convert_filter_7541 sk_convert_filter 2 7541 NULL
115520 +ath10k_read_htt_stats_mask_7557 ath10k_read_htt_stats_mask 3 7557 NULL
115521 +smk_read_mapped_7562 smk_read_mapped 3 7562 NULL
115522 +netvsc_get_slots_7565 netvsc_get_slots 0 7565 NULL
115523 +cfs_cpt_num_estimate_7571 cfs_cpt_num_estimate 0 7571 NULL
115524 +groups_alloc_7614 groups_alloc 1 7614 NULL nohasharray
115525 +create_dir_7614 create_dir 0 7614 &groups_alloc_7614
115526 +_rtw_zmalloc_7636 _rtw_zmalloc 1 7636 NULL
115527 +fault_inject_write_7662 fault_inject_write 3 7662 NULL
115528 +acpi_ex_allocate_name_string_7685 acpi_ex_allocate_name_string 2-1 7685 NULL
115529 +acpi_ns_get_pathname_length_7699 acpi_ns_get_pathname_length 0 7699 NULL
115530 +dev_write_7708 dev_write 3 7708 NULL
115531 +pci_raw_set_power_state_7729 pci_raw_set_power_state 0 7729 NULL
115532 +vxge_device_register_7752 vxge_device_register 4 7752 NULL
115533 +ubi_io_read_vid_hdr_7766 ubi_io_read_vid_hdr 0 7766 NULL
115534 +iwl_dbgfs_bt_cmd_read_7770 iwl_dbgfs_bt_cmd_read 3 7770 NULL
115535 +alloc_candev_7776 alloc_candev 1-2 7776 NULL
115536 +dfs_global_file_read_7787 dfs_global_file_read 3 7787 NULL
115537 +bnx2_nvram_write_7790 bnx2_nvram_write 4-2 7790 NULL
115538 +lustre_packed_msg_size_7792 lustre_packed_msg_size 0 7792 NULL nohasharray
115539 +diva_os_copy_from_user_7792 diva_os_copy_from_user 4 7792 &lustre_packed_msg_size_7792
115540 +cfs_trace_dump_debug_buffer_usrstr_7861 cfs_trace_dump_debug_buffer_usrstr 2 7861 NULL
115541 +tipc_alloc_entry_7875 tipc_alloc_entry 2 7875 NULL
115542 +dvb_dmxdev_read_sec_7892 dvb_dmxdev_read_sec 4 7892 NULL
115543 +xfs_trans_get_efi_7898 xfs_trans_get_efi 2 7898 NULL
115544 +libfc_host_alloc_7917 libfc_host_alloc 2 7917 NULL
115545 +f_hidg_write_7932 f_hidg_write 3 7932 NULL
115546 +integrity_digsig_verify_7956 integrity_digsig_verify 3-0 7956 NULL
115547 +smk_write_load_self_7958 smk_write_load_self 3 7958 NULL
115548 +tt3650_ci_msg_locked_8013 tt3650_ci_msg_locked 4 8013 NULL
115549 +vcs_read_8017 vcs_read 3 8017 NULL
115550 +vhost_add_used_and_signal_n_8038 vhost_add_used_and_signal_n 4 8038 NULL
115551 +ms_read_multiple_pages_8052 ms_read_multiple_pages 5-4 8052 NULL
115552 +dgrp_mon_read_8065 dgrp_mon_read 3 8065 NULL
115553 +spi_write_then_read_8073 spi_write_then_read 5-3 8073 NULL
115554 +qla4xxx_post_ping_evt_work_8074 qla4xxx_post_ping_evt_work 4 8074 NULL
115555 +venus_lookup_8121 venus_lookup 4 8121 NULL
115556 +ieee80211_if_fmt_num_buffered_multicast_8127 ieee80211_if_fmt_num_buffered_multicast 3 8127 NULL
115557 +__sk_mem_schedule_8185 __sk_mem_schedule 2 8185 NULL
115558 +ieee80211_if_fmt_dot11MeshHoldingTimeout_8187 ieee80211_if_fmt_dot11MeshHoldingTimeout 3 8187 NULL
115559 +recent_mt_proc_write_8206 recent_mt_proc_write 3 8206 NULL
115560 +rt2x00debug_write_bbp_8212 rt2x00debug_write_bbp 3 8212 NULL
115561 +ad7879_spi_multi_read_8218 ad7879_spi_multi_read 3 8218 NULL
115562 +play_iframe_8219 play_iframe 3 8219 NULL
115563 +kvm_mmu_page_set_gfn_8225 kvm_mmu_page_set_gfn 2 8225 NULL
115564 +sctp_ssnmap_size_8228 sctp_ssnmap_size 0-1-2 8228 NULL
115565 +check_xattr_ref_inode_8244 check_xattr_ref_inode 0 8244 NULL
115566 +t3_init_l2t_8261 t3_init_l2t 1 8261 NULL
115567 +init_cdev_8274 init_cdev 1 8274 NULL
115568 +rproc_recovery_write_8281 rproc_recovery_write 3 8281 NULL
115569 +qib_decode_7220_err_8315 qib_decode_7220_err 3 8315 NULL
115570 +snd_pcm_update_state_8320 snd_pcm_update_state 0 8320 NULL
115571 +ipwireless_send_packet_8328 ipwireless_send_packet 4 8328 NULL
115572 +rtw_cfg80211_rx_action_8329 rtw_cfg80211_rx_action 3 8329 NULL
115573 +tracing_entries_read_8345 tracing_entries_read 3 8345 NULL
115574 +ieee80211_if_fmt_ht_opmode_8347 ieee80211_if_fmt_ht_opmode 3 8347 NULL
115575 +generic_write_sync_8358 generic_write_sync 0 8358 NULL
115576 +ping_getfrag_8360 ping_getfrag 4-3 8360 NULL
115577 +ath6kl_lrssi_roam_write_8362 ath6kl_lrssi_roam_write 3 8362 NULL
115578 +xdi_copy_from_user_8395 xdi_copy_from_user 4 8395 NULL
115579 +zd_rf_scnprint_id_8406 zd_rf_scnprint_id 0-3 8406 NULL
115580 +smk_write_change_rule_8411 smk_write_change_rule 3 8411 NULL nohasharray
115581 +uvc_v4l2_ioctl_8411 uvc_v4l2_ioctl 2 8411 &smk_write_change_rule_8411
115582 +roccat_common2_sysfs_read_8431 roccat_common2_sysfs_read 6 8431 NULL
115583 +afs_cell_lookup_8482 afs_cell_lookup 2 8482 NULL
115584 +fore200e_chunk_alloc_8501 fore200e_chunk_alloc 4-3 8501 NULL
115585 +batadv_tt_len_8502 batadv_tt_len 0-1 8502 NULL
115586 +dev_config_8506 dev_config 3 8506 NULL
115587 +ACL_to_cifs_posix_8509 ACL_to_cifs_posix 3 8509 NULL
115588 +opticon_process_data_packet_8524 opticon_process_data_packet 3 8524 NULL
115589 +user_on_off_8552 user_on_off 2 8552 NULL
115590 +profile_remove_8556 profile_remove 3 8556 NULL
115591 +cache_slow_downcall_8570 cache_slow_downcall 2 8570 NULL nohasharray
115592 +pci_msi_check_device_8570 pci_msi_check_device 0 8570 &cache_slow_downcall_8570
115593 +isr_dma0_done_read_8574 isr_dma0_done_read 3 8574 NULL
115594 +tower_write_8580 tower_write 3 8580 NULL
115595 +cfs_cpt_number_8618 cfs_cpt_number 0 8618 NULL
115596 +shash_setkey_unaligned_8620 shash_setkey_unaligned 3 8620 NULL
115597 +it821x_firmware_command_8628 it821x_firmware_command 3 8628 NULL
115598 +scsi_dma_map_8632 scsi_dma_map 0 8632 NULL
115599 +fuse_send_write_pages_8636 fuse_send_write_pages 0-5 8636 NULL
115600 +mlx5_vzalloc_8663 mlx5_vzalloc 1 8663 NULL
115601 +dio_bio_alloc_8677 dio_bio_alloc 5 8677 NULL
115602 +lbs_bcnmiss_read_8678 lbs_bcnmiss_read 3 8678 NULL
115603 +rproc_trace_read_8686 rproc_trace_read 3 8686 NULL
115604 +skb_frag_size_8695 skb_frag_size 0 8695 NULL
115605 +arcfb_write_8702 arcfb_write 3 8702 NULL
115606 +i_size_read_8703 i_size_read 0 8703 NULL nohasharray
115607 +init_header_8703 init_header 0 8703 &i_size_read_8703
115608 +ctrl_out_8712 ctrl_out 3-5 8712 NULL
115609 +tracing_max_lat_write_8728 tracing_max_lat_write 3 8728 NULL
115610 +jffs2_acl_count_8729 jffs2_acl_count 0-1 8729 NULL
115611 +__create_irqs_8733 __create_irqs 2 8733 NULL
115612 +tx_tx_exch_expiry_read_8749 tx_tx_exch_expiry_read 3 8749 NULL
115613 +compound_order_8750 compound_order 0 8750 NULL
115614 +yurex_write_8761 yurex_write 3 8761 NULL
115615 +joydev_compat_ioctl_8765 joydev_compat_ioctl 2 8765 NULL
115616 +kstrtoint_from_user_8778 kstrtoint_from_user 2 8778 NULL
115617 +paging32_prefetch_gpte_8783 paging32_prefetch_gpte 4 8783 NULL
115618 +ext4_try_to_write_inline_data_8785 ext4_try_to_write_inline_data 3-4 8785 NULL
115619 +__bitmap_weight_8796 __bitmap_weight 0 8796 NULL
115620 +metronomefb_write_8823 metronomefb_write 3 8823 NULL
115621 +SyS_llistxattr_8824 SyS_llistxattr 3 8824 NULL
115622 +extent_read_full_page_8826 extent_read_full_page 0 8826 NULL
115623 +ll_xattr_cache_get_8829 ll_xattr_cache_get 0 8829 NULL
115624 +get_queue_depth_8833 get_queue_depth 0 8833 NULL
115625 +dvb_ringbuffer_pkt_next_8834 dvb_ringbuffer_pkt_next 0-2 8834 NULL
115626 +usb_ep_queue_8839 usb_ep_queue 0 8839 NULL
115627 +iwl_rx_packet_len_8854 iwl_rx_packet_len 0 8854 NULL
115628 +debug_debug1_read_8856 debug_debug1_read 3 8856 NULL
115629 +wa_nep_queue_8858 wa_nep_queue 2 8858 NULL
115630 +radeon_drm_ioctl_8875 radeon_drm_ioctl 2 8875 NULL
115631 +compressed_bio_size_8887 compressed_bio_size 0-2 8887 NULL
115632 +ab3100_get_set_reg_8890 ab3100_get_set_reg 3 8890 NULL nohasharray
115633 +tracing_max_lat_read_8890 tracing_max_lat_read 3 8890 &ab3100_get_set_reg_8890
115634 +sdio_max_byte_size_8907 sdio_max_byte_size 0 8907 NULL
115635 +sysfs_merge_group_8917 sysfs_merge_group 0 8917 NULL
115636 +write_file_ani_8918 write_file_ani 3 8918 NULL
115637 +layout_commit_8926 layout_commit 3 8926 NULL
115638 +cp2112_hid_get_8933 cp2112_hid_get 4 8933 NULL
115639 +adjust_priv_size_8935 adjust_priv_size 0-1 8935 NULL
115640 +driver_stats_read_8944 driver_stats_read 3 8944 NULL
115641 +read_file_tgt_stats_8959 read_file_tgt_stats 3 8959 NULL
115642 +usb_allocate_stream_buffers_8964 usb_allocate_stream_buffers 3 8964 NULL
115643 +qib_qsfp_dump_8966 qib_qsfp_dump 0-3 8966 NULL
115644 +venus_mkdir_8967 venus_mkdir 4 8967 NULL
115645 +seq_open_net_8968 seq_open_net 4 8968 NULL nohasharray
115646 +vol_cdev_read_8968 vol_cdev_read 3 8968 &seq_open_net_8968
115647 +bio_integrity_get_tag_8974 bio_integrity_get_tag 3 8974 NULL
115648 +sony_register_touchpad_8981 sony_register_touchpad 2 8981 NULL
115649 +jbd2_journal_blocks_per_page_9004 jbd2_journal_blocks_per_page 0 9004 NULL
115650 +il_dbgfs_clear_ucode_stats_write_9016 il_dbgfs_clear_ucode_stats_write 3 9016 NULL
115651 +snd_emu10k1_ptr_read_9026 snd_emu10k1_ptr_read 0-2 9026 NULL
115652 +nla_put_9042 nla_put 3 9042 NULL
115653 +sta_tx_latency_stat_header_9050 sta_tx_latency_stat_header 0-3-4 9050 NULL
115654 +snd_emu10k1_synth_copy_from_user_9061 snd_emu10k1_synth_copy_from_user 3-5 9061 NULL
115655 +snd_gus_dram_peek_9062 snd_gus_dram_peek 4 9062 NULL
115656 +fib_info_hash_alloc_9075 fib_info_hash_alloc 1 9075 NULL
115657 +create_queues_9088 create_queues 2-3 9088 NULL
115658 +ftdi_prepare_write_buffer_9093 ftdi_prepare_write_buffer 3 9093 NULL
115659 +adxl34x_spi_read_block_9108 adxl34x_spi_read_block 3 9108 NULL
115660 +caif_stream_sendmsg_9110 caif_stream_sendmsg 4 9110 NULL nohasharray
115661 +gfn_to_rmap_9110 gfn_to_rmap 2-3 9110 &caif_stream_sendmsg_9110
115662 +udf_direct_IO_9111 udf_direct_IO 4 9111 NULL
115663 +pmcraid_change_queue_depth_9116 pmcraid_change_queue_depth 2 9116 NULL
115664 +vb2_dma_sg_alloc_9157 vb2_dma_sg_alloc 2 9157 NULL
115665 +dbg_command_buf_9165 dbg_command_buf 2 9165 NULL
115666 +isr_irqs_read_9181 isr_irqs_read 3 9181 NULL
115667 +count_leading_zeros_9183 count_leading_zeros 0 9183 NULL
115668 +altera_swap_ir_9194 altera_swap_ir 2 9194 NULL
115669 +snd_m3_get_pointer_9206 snd_m3_get_pointer 0 9206 NULL
115670 +iwl_dbgfs_frame_stats_read_9211 iwl_dbgfs_frame_stats_read 3 9211 NULL
115671 +virtqueue_add_9217 virtqueue_add 4-5 9217 NULL
115672 +tx_tx_prepared_descs_read_9221 tx_tx_prepared_descs_read 3 9221 NULL
115673 +sctp_getsockopt_delayed_ack_9232 sctp_getsockopt_delayed_ack 2 9232 NULL
115674 +hfsplus_bnode_read_u16_9262 hfsplus_bnode_read_u16 0 9262 NULL
115675 +hdpvr_read_9273 hdpvr_read 3 9273 NULL
115676 +flakey_status_9274 flakey_status 5 9274 NULL
115677 +iwl_dbgfs_stations_read_9309 iwl_dbgfs_stations_read 3 9309 NULL
115678 +ceph_sync_setxattr_9310 ceph_sync_setxattr 4 9310 NULL
115679 +ieee80211_if_fmt_txpower_9334 ieee80211_if_fmt_txpower 3 9334 NULL
115680 +nvme_trans_fmt_get_parm_header_9340 nvme_trans_fmt_get_parm_header 2 9340 NULL
115681 +ocfs2_orphan_for_truncate_9342 ocfs2_orphan_for_truncate 4 9342 NULL
115682 +ll_direct_rw_pages_9361 ll_direct_rw_pages 0 9361 NULL
115683 +sta_beacon_loss_count_read_9370 sta_beacon_loss_count_read 3 9370 NULL
115684 +virtqueue_add_outbuf_9395 virtqueue_add_outbuf 3 9395 NULL
115685 +read_9397 read 3 9397 NULL
115686 +hash_ipportip4_expire_9415 hash_ipportip4_expire 4 9415 NULL
115687 +btrfs_drop_extents_9423 btrfs_drop_extents 4 9423 NULL
115688 +bm_realloc_pages_9431 bm_realloc_pages 2 9431 NULL
115689 +ffs_ep0_write_9438 ffs_ep0_write 3 9438 NULL
115690 +ieee80211_if_fmt_fwded_unicast_9454 ieee80211_if_fmt_fwded_unicast 3 9454 NULL
115691 +get_registers_9470 get_registers 4 9470 NULL nohasharray
115692 +agp_generic_alloc_user_9470 agp_generic_alloc_user 1 9470 &get_registers_9470
115693 +crypt_status_9492 crypt_status 5 9492 NULL
115694 +lbs_threshold_write_9502 lbs_threshold_write 5 9502 NULL
115695 +lp_write_9511 lp_write 3 9511 NULL
115696 +mext_calc_swap_extents_9517 mext_calc_swap_extents 4 9517 NULL
115697 +scsi_tgt_kspace_exec_9522 scsi_tgt_kspace_exec 8 9522 NULL
115698 +ll_max_read_ahead_whole_mb_seq_write_9528 ll_max_read_ahead_whole_mb_seq_write 3 9528 NULL
115699 +read_file_dma_9530 read_file_dma 3 9530 NULL
115700 +iwl_dbgfs_bf_params_read_9542 iwl_dbgfs_bf_params_read 3 9542 NULL
115701 +il_dbgfs_missed_beacon_write_9546 il_dbgfs_missed_beacon_write 3 9546 NULL
115702 +compat_SyS_pwritev64_9548 compat_SyS_pwritev64 3 9548 NULL
115703 +fw_node_create_9559 fw_node_create 2 9559 NULL
115704 +kobj_map_9566 kobj_map 2-3 9566 NULL
115705 +f2fs_read_data_pages_9574 f2fs_read_data_pages 4 9574 NULL
115706 +snd_emu10k1_fx8010_read_9605 snd_emu10k1_fx8010_read 5-6 9605 NULL
115707 +lov_ost_pool_add_9626 lov_ost_pool_add 3 9626 NULL
115708 +saa7164_buffer_alloc_user_9627 saa7164_buffer_alloc_user 2 9627 NULL
115709 +ceph_copy_user_to_page_vector_9635 ceph_copy_user_to_page_vector 4-3 9635 NULL
115710 +acpi_ex_insert_into_field_9638 acpi_ex_insert_into_field 3 9638 NULL
115711 +ll_checksum_seq_write_9648 ll_checksum_seq_write 3 9648 NULL
115712 +ocfs2_xattr_get_rec_9652 ocfs2_xattr_get_rec 0 9652 NULL
115713 +queue_received_packet_9657 queue_received_packet 5 9657 NULL
115714 +tipc_port_mcast_xmit_9663 tipc_port_mcast_xmit 4 9663 NULL
115715 +snd_opl4_mem_proc_write_9670 snd_opl4_mem_proc_write 5 9670 NULL
115716 +dns_query_9676 dns_query 3 9676 NULL
115717 +qib_7322_handle_hwerrors_9678 qib_7322_handle_hwerrors 3 9678 NULL
115718 +__erst_read_from_storage_9690 __erst_read_from_storage 0 9690 NULL
115719 +vx_transfer_end_9701 vx_transfer_end 0 9701 NULL
115720 +fuse_iter_npages_9705 fuse_iter_npages 0 9705 NULL nohasharray
115721 +ieee80211_if_read_aid_9705 ieee80211_if_read_aid 3 9705 &fuse_iter_npages_9705
115722 +cfg80211_tx_mlme_mgmt_9715 cfg80211_tx_mlme_mgmt 3 9715 NULL
115723 +parse_uac2_sample_rate_range_9718 parse_uac2_sample_rate_range 0 9718 NULL
115724 +btrfs_stack_file_extent_num_bytes_9720 btrfs_stack_file_extent_num_bytes 0 9720 NULL
115725 +SYSC_ppoll_9721 SYSC_ppoll 2 9721 NULL
115726 +nla_get_u8_9736 nla_get_u8 0 9736 NULL
115727 +ieee80211_if_fmt_num_mcast_sta_9738 ieee80211_if_fmt_num_mcast_sta 3 9738 NULL
115728 +ddb_input_read_9743 ddb_input_read 3-0 9743 NULL
115729 +regmap_multi_reg_write_bypassed_9751 regmap_multi_reg_write_bypassed 3 9751 NULL nohasharray
115730 +sta_last_ack_signal_read_9751 sta_last_ack_signal_read 3 9751 &regmap_multi_reg_write_bypassed_9751
115731 +btrfs_super_root_9763 btrfs_super_root 0 9763 NULL
115732 +__blk_queue_init_tags_9778 __blk_queue_init_tags 2 9778 NULL
115733 +kvm_age_hva_9795 kvm_age_hva 2 9795 NULL
115734 +udpv6_recvmsg_9813 udpv6_recvmsg 4 9813 NULL nohasharray
115735 +ieee80211_if_read_state_9813 ieee80211_if_read_state 3 9813 &udpv6_recvmsg_9813
115736 +pmcraid_alloc_sglist_9864 pmcraid_alloc_sglist 1 9864 NULL
115737 +btrfs_free_reserved_extent_9867 btrfs_free_reserved_extent 2 9867 NULL
115738 +wil_read_file_ioblob_9878 wil_read_file_ioblob 3 9878 NULL
115739 +snd_midi_event_new_9893 snd_midi_event_new 1 9893 NULL nohasharray
115740 +bm_register_write_9893 bm_register_write 3 9893 &snd_midi_event_new_9893
115741 +snd_gf1_pcm_playback_copy_9895 snd_gf1_pcm_playback_copy 3-5 9895 NULL
115742 +nonpaging_page_fault_9908 nonpaging_page_fault 2 9908 NULL
115743 +iwl_dbgfs_prph_reg_read_9928 iwl_dbgfs_prph_reg_read 3 9928 NULL
115744 +root_nfs_parse_options_9937 root_nfs_parse_options 3 9937 NULL
115745 +pstore_ftrace_knob_read_9947 pstore_ftrace_knob_read 3 9947 NULL
115746 +read_file_misc_9948 read_file_misc 3 9948 NULL
115747 +csum_partial_copy_fromiovecend_9957 csum_partial_copy_fromiovecend 3-4 9957 NULL
115748 +SyS_gethostname_9964 SyS_gethostname 2 9964 NULL
115749 +get_free_serial_index_9969 get_free_serial_index 0 9969 NULL
115750 +btrfs_add_link_9973 btrfs_add_link 5 9973 NULL
115751 +SYSC_move_pages_9986 SYSC_move_pages 2 9986 NULL
115752 +aat2870_dump_reg_10019 aat2870_dump_reg 0 10019 NULL
115753 +ieee80211_set_probe_resp_10077 ieee80211_set_probe_resp 3 10077 NULL
115754 +get_elem_size_10110 get_elem_size 0-2 10110 NULL nohasharray
115755 +dynamic_ps_timeout_read_10110 dynamic_ps_timeout_read 3 10110 &get_elem_size_10110
115756 +gfs2_meta_read_10112 gfs2_meta_read 0 10112 NULL
115757 +SyS_migrate_pages_10134 SyS_migrate_pages 2 10134 NULL
115758 +aes_decrypt_packets_read_10155 aes_decrypt_packets_read 3 10155 NULL
115759 +rx_out_of_mem_read_10157 rx_out_of_mem_read 3 10157 NULL
115760 +hidg_alloc_ep_req_10159 hidg_alloc_ep_req 2 10159 NULL
115761 +asd_store_update_bios_10165 asd_store_update_bios 4 10165 NULL
115762 +kstrtol_from_user_10168 kstrtol_from_user 2 10168 NULL
115763 +proc_pid_attr_read_10173 proc_pid_attr_read 3 10173 NULL
115764 +jffs2_user_setxattr_10182 jffs2_user_setxattr 4 10182 NULL
115765 +cciss_proc_write_10259 cciss_proc_write 3 10259 NULL
115766 +__qlcnic_pci_sriov_enable_10281 __qlcnic_pci_sriov_enable 2 10281 NULL
115767 +snd_rme9652_capture_copy_10287 snd_rme9652_capture_copy 5 10287 NULL
115768 +ubi_leb_change_10289 ubi_leb_change 0 10289 NULL
115769 +read_emulate_10310 read_emulate 2-4 10310 NULL
115770 +read_file_spectral_count_10320 read_file_spectral_count 3 10320 NULL
115771 +compat_SyS_writev_10327 compat_SyS_writev 3 10327 NULL
115772 +tun_sendmsg_10337 tun_sendmsg 4 10337 NULL
115773 +ufx_alloc_urb_list_10349 ufx_alloc_urb_list 3 10349 NULL
115774 +dbAllocAny_10354 dbAllocAny 0 10354 NULL
115775 +ath6kl_listen_int_read_10355 ath6kl_listen_int_read 3 10355 NULL
115776 +ms_write_multiple_pages_10362 ms_write_multiple_pages 6-5 10362 NULL
115777 +sta_ht_capa_read_10366 sta_ht_capa_read 3 10366 NULL
115778 +ecryptfs_decode_and_decrypt_filename_10379 ecryptfs_decode_and_decrypt_filename 5 10379 NULL
115779 +led_classdev_register_10384 led_classdev_register 0 10384 NULL
115780 +do_compat_pselect_10398 do_compat_pselect 1 10398 NULL
115781 +fwtty_rx_10434 fwtty_rx 3 10434 NULL
115782 +event_phy_transmit_error_read_10471 event_phy_transmit_error_read 3 10471 NULL
115783 +hash_ipportip6_expire_10478 hash_ipportip6_expire 4 10478 NULL
115784 +nouveau_pwr_create__10483 nouveau_pwr_create_ 4 10483 NULL
115785 +ext4_itable_unused_count_10501 ext4_itable_unused_count 0 10501 NULL
115786 +qib_alloc_fast_reg_page_list_10507 qib_alloc_fast_reg_page_list 2 10507 NULL
115787 +sel_write_disable_10511 sel_write_disable 3 10511 NULL
115788 +osd_req_write_sg_kern_10514 osd_req_write_sg_kern 5 10514 NULL
115789 +rds_message_alloc_10517 rds_message_alloc 1 10517 NULL
115790 +qlcnic_pci_sriov_enable_10519 qlcnic_pci_sriov_enable 2 10519 NULL
115791 +snd_pcm_hw_params_user_10520 snd_pcm_hw_params_user 0 10520 NULL
115792 +kstrtouint_from_user_10536 kstrtouint_from_user 2 10536 NULL nohasharray
115793 +snd_pcm_lib_read_10536 snd_pcm_lib_read 0-3 10536 &kstrtouint_from_user_10536
115794 +ext4_write_begin_10576 ext4_write_begin 3-4 10576 NULL
115795 +scrub_remap_extent_10588 scrub_remap_extent 2 10588 NULL
115796 +otp_read_10594 otp_read 2-4-5 10594 NULL
115797 +supply_map_read_file_10608 supply_map_read_file 3 10608 NULL
115798 +ima_show_htable_violations_10619 ima_show_htable_violations 3 10619 NULL
115799 +fq_alloc_node_10633 fq_alloc_node 1 10633 NULL
115800 +nfs_idmap_lookup_id_10660 nfs_idmap_lookup_id 2 10660 NULL nohasharray
115801 +ubi_io_write_vid_hdr_10660 ubi_io_write_vid_hdr 0 10660 &nfs_idmap_lookup_id_10660
115802 +efx_max_tx_len_10662 efx_max_tx_len 0-2 10662 NULL
115803 +parport_write_10669 parport_write 0 10669 NULL
115804 +edge_write_10692 edge_write 4 10692 NULL
115805 +ubi_wl_get_peb_10699 ubi_wl_get_peb 0 10699 NULL
115806 +selinux_inode_setxattr_10708 selinux_inode_setxattr 4 10708 NULL nohasharray
115807 +inl_10708 inl 0 10708 &selinux_inode_setxattr_10708
115808 +shash_async_setkey_10720 shash_async_setkey 3 10720 NULL nohasharray
115809 +pvr2_ioread_read_10720 pvr2_ioread_read 3 10720 &shash_async_setkey_10720
115810 +spi_sync_10731 spi_sync 0 10731 NULL
115811 +sctp_getsockopt_maxseg_10737 sctp_getsockopt_maxseg 2 10737 NULL nohasharray
115812 +apu_get_register_10737 apu_get_register 0 10737 &sctp_getsockopt_maxseg_10737
115813 +SyS_io_getevents_10756 SyS_io_getevents 3 10756 NULL
115814 +vhost_add_used_n_10760 vhost_add_used_n 3 10760 NULL
115815 +rd_build_prot_space_10761 rd_build_prot_space 2-3 10761 NULL
115816 +kvm_read_guest_atomic_10765 kvm_read_guest_atomic 4 10765 NULL
115817 +__qp_memcpy_to_queue_10779 __qp_memcpy_to_queue 2-4 10779 NULL
115818 +diva_set_trace_filter_10820 diva_set_trace_filter 0-1 10820 NULL
115819 +lbs_sleepparams_read_10840 lbs_sleepparams_read 3 10840 NULL
115820 +ida_get_new_above_10853 ida_get_new_above 0 10853 NULL
115821 +fuse_conn_max_background_read_10855 fuse_conn_max_background_read 3 10855 NULL
115822 +snd_pcm_oss_write1_10872 snd_pcm_oss_write1 3 10872 NULL
115823 +wiidebug_drm_write_10879 wiidebug_drm_write 3 10879 NULL
115824 +get_scq_10897 get_scq 2 10897 NULL
115825 +tifm_alloc_adapter_10903 tifm_alloc_adapter 1 10903 NULL
115826 +lprocfs_wr_atomic_10912 lprocfs_wr_atomic 3 10912 NULL
115827 +__copy_from_user_10918 __copy_from_user 0-3 10918 NULL
115828 +kobject_add_10919 kobject_add 0 10919 NULL
115829 +ar9003_dump_modal_eeprom_10959 ar9003_dump_modal_eeprom 3-2-0 10959 NULL
115830 +ci_port_test_write_10962 ci_port_test_write 3 10962 NULL
115831 +bm_entry_read_10976 bm_entry_read 3 10976 NULL
115832 +sched_autogroup_write_10984 sched_autogroup_write 3 10984 NULL
115833 +xfrm_hash_alloc_10997 xfrm_hash_alloc 1 10997 NULL
115834 +rx_filter_accum_arp_pend_requests_read_11003 rx_filter_accum_arp_pend_requests_read 3 11003 NULL
115835 +SetLineNumber_11023 SetLineNumber 0 11023 NULL
115836 +pci_msi_vec_count_11046 pci_msi_vec_count 0 11046 NULL
115837 +tda10048_writeregbulk_11050 tda10048_writeregbulk 4 11050 NULL
115838 +qlcnic_83xx_calculate_msix_vector_11063 qlcnic_83xx_calculate_msix_vector 0 11063 NULL nohasharray
115839 +insert_inline_extent_backref_11063 insert_inline_extent_backref 8 11063 &qlcnic_83xx_calculate_msix_vector_11063
115840 +tcp_send_mss_11079 tcp_send_mss 0 11079 NULL
115841 +snd_pcm_delay_11081 snd_pcm_delay 0 11081 NULL
115842 +count_argc_11083 count_argc 0 11083 NULL
115843 +kvm_write_guest_cached_11106 kvm_write_guest_cached 4 11106 NULL
115844 +tw_change_queue_depth_11116 tw_change_queue_depth 2 11116 NULL
115845 +page_offset_11120 page_offset 0 11120 NULL
115846 +cea_db_payload_len_11124 cea_db_payload_len 0 11124 NULL nohasharray
115847 +tracing_buffers_read_11124 tracing_buffers_read 3 11124 &cea_db_payload_len_11124
115848 +alloc_alien_cache_11127 alloc_alien_cache 2 11127 NULL
115849 +snd_gf1_pcm_playback_silence_11172 snd_gf1_pcm_playback_silence 3-4 11172 NULL
115850 +il_dbgfs_rx_queue_read_11221 il_dbgfs_rx_queue_read 3 11221 NULL
115851 +comedi_alloc_spriv_11234 comedi_alloc_spriv 2 11234 NULL
115852 +of_irq_count_11253 of_irq_count 0 11253 NULL
115853 +hugetlbfs_read_11268 hugetlbfs_read 3 11268 NULL
115854 +ath6kl_power_params_write_11274 ath6kl_power_params_write 3 11274 NULL
115855 +__proc_daemon_file_11305 __proc_daemon_file 5 11305 NULL
115856 +ext4_xattr_check_names_11314 ext4_xattr_check_names 0 11314 NULL
115857 +bcache_dev_sectors_dirty_add_11315 bcache_dev_sectors_dirty_add 3-4 11315 NULL
115858 +sk_filter_size_11316 sk_filter_size 0 11316 NULL nohasharray
115859 +tcp_send_rcvq_11316 tcp_send_rcvq 3 11316 &sk_filter_size_11316
115860 +construct_key_11329 construct_key 3 11329 NULL nohasharray
115861 +__kfifo_out_peek_11329 __kfifo_out_peek 0-3 11329 &construct_key_11329
115862 +next_segment_11330 next_segment 0-2-1 11330 NULL
115863 +persistent_ram_buffer_map_11332 persistent_ram_buffer_map 1-2 11332 NULL
115864 +ext4_get_inline_size_11349 ext4_get_inline_size 0 11349 NULL
115865 +sel_write_create_11353 sel_write_create 3 11353 NULL nohasharray
115866 +nl80211_send_mgmt_11353 nl80211_send_mgmt 7 11353 &sel_write_create_11353
115867 +of_get_available_child_count_11361 of_get_available_child_count 0 11361 NULL
115868 +qib_get_base_info_11369 qib_get_base_info 3 11369 NULL
115869 +tcf_register_action_11381 tcf_register_action 2 11381 NULL nohasharray
115870 +nft_value_dump_11381 nft_value_dump 3 11381 &tcf_register_action_11381
115871 +isku_sysfs_read_keys_capslock_11392 isku_sysfs_read_keys_capslock 6 11392 NULL
115872 +dev_irnet_write_11398 dev_irnet_write 3 11398 NULL
115873 +lprocfs_wr_evict_client_11402 lprocfs_wr_evict_client 3 11402 NULL
115874 +___alloc_bootmem_11410 ___alloc_bootmem 1 11410 NULL
115875 +str_to_user_11411 str_to_user 2 11411 NULL
115876 +mem_fw_gen_free_mem_blks_read_11413 mem_fw_gen_free_mem_blks_read 3 11413 NULL
115877 +ath6kl_wmi_test_rx_11414 ath6kl_wmi_test_rx 3 11414 NULL
115878 +adis16480_show_firmware_revision_11417 adis16480_show_firmware_revision 3 11417 NULL
115879 +trace_options_read_11419 trace_options_read 3 11419 NULL
115880 +i40e_dbg_command_write_11421 i40e_dbg_command_write 3 11421 NULL
115881 +xd_read_multiple_pages_11422 xd_read_multiple_pages 5-4 11422 NULL
115882 +bttv_read_11432 bttv_read 3 11432 NULL
115883 +create_zero_mask_11453 create_zero_mask 0-1 11453 NULL
115884 +do_blockdev_direct_IO_11455 do_blockdev_direct_IO 0-6 11455 NULL
115885 +sca3000_read_first_n_hw_rb_11479 sca3000_read_first_n_hw_rb 2 11479 NULL nohasharray
115886 +pci_set_power_state_11479 pci_set_power_state 0 11479 &sca3000_read_first_n_hw_rb_11479
115887 +xfs_file_buffered_aio_write_11492 xfs_file_buffered_aio_write 4 11492 NULL
115888 +sd_do_mode_sense_11507 sd_do_mode_sense 5 11507 NULL
115889 +kmem_zalloc_11510 kmem_zalloc 1 11510 NULL
115890 +ll_direct_IO_26_seg_11518 ll_direct_IO_26_seg 0 11518 NULL
115891 +twl_direction_in_11527 twl_direction_in 2 11527 NULL
115892 +skb_cow_data_11565 skb_cow_data 0 11565 NULL
115893 +lpfc_idiag_ctlacc_write_11576 lpfc_idiag_ctlacc_write 3 11576 NULL
115894 +oprofilefs_ulong_to_user_11582 oprofilefs_ulong_to_user 3 11582 NULL
115895 +batadv_iv_ogm_orig_add_if_11586 batadv_iv_ogm_orig_add_if 2 11586 NULL
115896 +snd_pcm_action_11589 snd_pcm_action 0 11589 NULL
115897 +fw_device_op_ioctl_11595 fw_device_op_ioctl 2 11595 NULL
115898 +batadv_iv_ogm_orig_del_if_11604 batadv_iv_ogm_orig_del_if 2 11604 NULL
115899 +SYSC_mq_timedsend_11607 SYSC_mq_timedsend 3 11607 NULL
115900 +C_SYSC_migrate_pages_11618 C_SYSC_migrate_pages 2 11618 NULL
115901 +sisusb_send_bridge_packet_11649 sisusb_send_bridge_packet 2 11649 NULL
115902 +nla_total_size_11658 nla_total_size 1-0 11658 NULL
115903 +slab_ksize_11664 slab_ksize 0 11664 NULL
115904 +ide_queue_pc_tail_11673 ide_queue_pc_tail 5 11673 NULL
115905 +compat_SyS_msgsnd_11675 compat_SyS_msgsnd 3 11675 NULL
115906 +btrfs_alloc_delayed_item_11678 btrfs_alloc_delayed_item 1 11678 NULL
115907 +sctp_setsockopt_hmac_ident_11687 sctp_setsockopt_hmac_ident 3 11687 NULL
115908 +split_11691 split 2 11691 NULL
115909 +compat_SyS_keyctl_11695 compat_SyS_keyctl 4 11695 NULL nohasharray
115910 +snd_ctl_elem_user_tlv_11695 snd_ctl_elem_user_tlv 3 11695 &compat_SyS_keyctl_11695
115911 +blk_rq_cur_bytes_11723 blk_rq_cur_bytes 0 11723 NULL
115912 +dm_bio_prison_create_11749 dm_bio_prison_create 1 11749 NULL
115913 +iwl_dbgfs_qos_read_11753 iwl_dbgfs_qos_read 3 11753 NULL
115914 +ieee80211_get_num_supported_channels_11768 ieee80211_get_num_supported_channels 0 11768 NULL
115915 +tipc_sendmsg_11769 tipc_sendmsg 4 11769 NULL
115916 +ps_pspoll_timeouts_read_11776 ps_pspoll_timeouts_read 3 11776 NULL
115917 +btrfs_key_blockptr_11786 btrfs_key_blockptr 0 11786 NULL
115918 +pcpu_fc_alloc_11818 pcpu_fc_alloc 2 11818 NULL
115919 +zerocopy_sg_from_iovec_11828 zerocopy_sg_from_iovec 3 11828 NULL
115920 +sctp_setsockopt_maxseg_11829 sctp_setsockopt_maxseg 3 11829 NULL
115921 +rts51x_read_status_11830 rts51x_read_status 4 11830 NULL
115922 +unix_stream_connect_11844 unix_stream_connect 3 11844 NULL
115923 +pci_enable_msix_range_11852 pci_enable_msix_range 0-4 11852 NULL
115924 +ecryptfs_copy_filename_11868 ecryptfs_copy_filename 4 11868 NULL
115925 +ieee80211_rx_bss_info_11887 ieee80211_rx_bss_info 3 11887 NULL
115926 +mdc_rename_11899 mdc_rename 4-6 11899 NULL
115927 +xstateregs_get_11906 xstateregs_get 4 11906 NULL
115928 +ti_write_11916 ti_write 4 11916 NULL
115929 +fs_devrw_entry_11924 fs_devrw_entry 3 11924 NULL
115930 +atomic_sub_return_11939 atomic_sub_return 0-1 11939 NULL
115931 +r1_sync_page_io_11963 r1_sync_page_io 3 11963 NULL
115932 +read_and_add_raw_conns_11987 read_and_add_raw_conns 0 11987 NULL
115933 +ftdi_elan_total_command_size_12045 ftdi_elan_total_command_size 0 12045 NULL
115934 +ieee80211_if_read_user_power_level_12050 ieee80211_if_read_user_power_level 3 12050 NULL
115935 +il4965_ucode_tx_stats_read_12064 il4965_ucode_tx_stats_read 3 12064 NULL
115936 +ptc_proc_write_12076 ptc_proc_write 3 12076 NULL
115937 +batadv_tt_global_size_mod_12085 batadv_tt_global_size_mod 3 12085 NULL
115938 +rtw_malloc2d_12102 rtw_malloc2d 1-2-3 12102 NULL
115939 +alloc_bulk_urbs_generic_12127 alloc_bulk_urbs_generic 5 12127 NULL
115940 +set_powered_12129 set_powered 4 12129 NULL
115941 +ramoops_init_prz_12134 ramoops_init_prz 5 12134 NULL
115942 +xfs_handle_to_dentry_12135 xfs_handle_to_dentry 3 12135 NULL
115943 +rawv6_seticmpfilter_12137 rawv6_seticmpfilter 5 12137 NULL
115944 +rawsock_recvmsg_12144 rawsock_recvmsg 4 12144 NULL
115945 +get_idx_gc_leb_12148 get_idx_gc_leb 0 12148 NULL
115946 +btmrvl_sdio_host_to_card_12152 btmrvl_sdio_host_to_card 3 12152 NULL
115947 +vmbus_open_12154 vmbus_open 2-3 12154 NULL
115948 +fnic_reset_stats_write_12177 fnic_reset_stats_write 3 12177 NULL
115949 +LNetEQAlloc_12178 LNetEQAlloc 1 12178 NULL
115950 +ddp_make_gl_12179 ddp_make_gl 1 12179 NULL
115951 +compat_do_arpt_set_ctl_12184 compat_do_arpt_set_ctl 4 12184 NULL
115952 +ip_generic_getfrag_12187 ip_generic_getfrag 3-4 12187 NULL
115953 +snd_pcm_kernel_ioctl_12219 snd_pcm_kernel_ioctl 0 12219 NULL
115954 +fuse_get_req_12221 fuse_get_req 2 12221 NULL nohasharray
115955 +aat2870_reg_read_file_12221 aat2870_reg_read_file 3 12221 &fuse_get_req_12221
115956 +__alloc_bootmem_low_nopanic_12235 __alloc_bootmem_low_nopanic 1 12235 NULL
115957 +usnic_ib_qp_grp_dump_rows_12239 usnic_ib_qp_grp_dump_rows 3 12239 NULL
115958 +ib_uverbs_unmarshall_recv_12251 ib_uverbs_unmarshall_recv 5 12251 NULL
115959 +shash_compat_setkey_12267 shash_compat_setkey 3 12267 NULL
115960 +add_sctp_bind_addr_12269 add_sctp_bind_addr 3 12269 NULL
115961 +SYSC_vm86_12279 SYSC_vm86 2 12279 NULL
115962 +note_last_dentry_12285 note_last_dentry 3 12285 NULL
115963 +roundup_to_multiple_of_64_12288 roundup_to_multiple_of_64 0-1 12288 NULL nohasharray
115964 +il_dbgfs_nvm_read_12288 il_dbgfs_nvm_read 3 12288 &roundup_to_multiple_of_64_12288
115965 +bt_sock_recvmsg_12316 bt_sock_recvmsg 4 12316 NULL
115966 +usnic_transport_sock_to_str_12322 usnic_transport_sock_to_str 2-0 12322 NULL
115967 +pcbit_writecmd_12332 pcbit_writecmd 2 12332 NULL
115968 +mptctl_ioctl_12355 mptctl_ioctl 2 12355 NULL
115969 +__nf_ct_ext_add_length_12364 __nf_ct_ext_add_length 3 12364 NULL
115970 +xfs_iext_inline_to_direct_12384 xfs_iext_inline_to_direct 2 12384 NULL
115971 +write_file_dump_12391 write_file_dump 3 12391 NULL nohasharray
115972 +populate_dir_12391 populate_dir 0 12391 &write_file_dump_12391
115973 +hbucket_elem_add_12416 hbucket_elem_add 3 12416 NULL
115974 +ieee80211_if_read_num_mcast_sta_12419 ieee80211_if_read_num_mcast_sta 3 12419 NULL
115975 +cfs_array_alloc_12441 cfs_array_alloc 2 12441 NULL
115976 +skb_do_copy_data_nocache_12465 skb_do_copy_data_nocache 5 12465 NULL
115977 +x25_sendmsg_12487 x25_sendmsg 4 12487 NULL
115978 +fnic_trace_ctrl_read_12497 fnic_trace_ctrl_read 3 12497 NULL
115979 +qib_alloc_fast_reg_mr_12526 qib_alloc_fast_reg_mr 2 12526 NULL
115980 +write_inode_now_12565 write_inode_now 0 12565 NULL
115981 +hvc_alloc_12579 hvc_alloc 4 12579 NULL
115982 +pcpu_extend_area_map_12589 pcpu_extend_area_map 2 12589 NULL
115983 +_iwl_dbgfs_prph_reg_write_12597 _iwl_dbgfs_prph_reg_write 3 12597 NULL
115984 +tlbflush_write_file_12598 tlbflush_write_file 3 12598 NULL
115985 +vhci_put_user_12604 vhci_put_user 4 12604 NULL
115986 +sdhci_pltfm_init_12627 sdhci_pltfm_init 3 12627 NULL
115987 +pwr_rcvd_awake_bcns_cnt_read_12632 pwr_rcvd_awake_bcns_cnt_read 3 12632 NULL
115988 +pn_sendmsg_12640 pn_sendmsg 4 12640 NULL
115989 +dwc3_link_state_write_12641 dwc3_link_state_write 3 12641 NULL
115990 +nr_recvmsg_12649 nr_recvmsg 4 12649 NULL
115991 +rtw_android_get_link_speed_12655 rtw_android_get_link_speed 0 12655 NULL
115992 +ocfs2_read_block_12659 ocfs2_read_block 0 12659 NULL
115993 +sel_read_class_12669 sel_read_class 3 12669 NULL nohasharray
115994 +sparse_mem_maps_populate_node_12669 sparse_mem_maps_populate_node 4 12669 &sel_read_class_12669
115995 +ext4_writepage_trans_blocks_12674 ext4_writepage_trans_blocks 0 12674 NULL
115996 +iwl_dbgfs_calib_disabled_write_12707 iwl_dbgfs_calib_disabled_write 3 12707 NULL
115997 +ieee80211_if_read_num_buffered_multicast_12716 ieee80211_if_read_num_buffered_multicast 3 12716 NULL
115998 +ivtv_write_12721 ivtv_write 3 12721 NULL
115999 +key_rx_spec_read_12736 key_rx_spec_read 3 12736 NULL
116000 +__mei_cl_async_send_12737 __mei_cl_async_send 3 12737 NULL
116001 +ieee80211_if_read_dot11MeshMaxRetries_12756 ieee80211_if_read_dot11MeshMaxRetries 3 12756 NULL
116002 +listxattr_12769 listxattr 3 12769 NULL
116003 +sctp_ssnmap_init_12772 sctp_ssnmap_init 3-2 12772 NULL
116004 +scsi_adjust_queue_depth_12802 scsi_adjust_queue_depth 3 12802 NULL
116005 +xfs_inumbers_fmt_12817 xfs_inumbers_fmt 3 12817 NULL
116006 +SyS_add_key_12834 SyS_add_key 4 12834 NULL
116007 +TSS_authhmac_12839 TSS_authhmac 3 12839 NULL
116008 +spidev_sync_12842 spidev_sync 0 12842 NULL
116009 +spidev_ioctl_12846 spidev_ioctl 2 12846 NULL
116010 +ath9k_dump_4k_modal_eeprom_12883 ath9k_dump_4k_modal_eeprom 3-2 12883 NULL
116011 +get_leb_cnt_12892 get_leb_cnt 0-2 12892 NULL
116012 +get_virtual_node_size_12908 get_virtual_node_size 0 12908 NULL
116013 +rds_pages_in_vec_12922 rds_pages_in_vec 0 12922 NULL
116014 +do_inode_permission_12946 do_inode_permission 0 12946 NULL
116015 +bm_status_write_12964 bm_status_write 3 12964 NULL
116016 +raid56_parity_recover_12987 raid56_parity_recover 5 12987 NULL
116017 +TransmitTcb_12989 TransmitTcb 4 12989 NULL
116018 +sk_peek_offset_12991 sk_peek_offset 0 12991 NULL
116019 +__btrfs_direct_write_13007 __btrfs_direct_write 4-0 13007 NULL
116020 +bset_prev_bytes_13020 bset_prev_bytes 0 13020 NULL
116021 +subsystem_filter_write_13022 subsystem_filter_write 3 13022 NULL
116022 +generic_segment_checks_13041 generic_segment_checks 0 13041 NULL
116023 +ocfs2_write_begin_13045 ocfs2_write_begin 3-4 13045 NULL
116024 +__dn_setsockopt_13060 __dn_setsockopt 5 13060 NULL nohasharray
116025 +ptlrpc_lprocfs_threads_min_seq_write_13060 ptlrpc_lprocfs_threads_min_seq_write 3 13060 &__dn_setsockopt_13060
116026 +biovec_create_pool_13079 biovec_create_pool 2 13079 NULL
116027 +xattr_getsecurity_13090 xattr_getsecurity 0 13090 NULL
116028 +ttm_dma_pool_alloc_new_pages_13105 ttm_dma_pool_alloc_new_pages 3 13105 NULL
116029 +snd_rme96_playback_copy_13111 snd_rme96_playback_copy 5 13111 NULL
116030 +bfad_debugfs_read_13119 bfad_debugfs_read 3 13119 NULL
116031 +blk_update_request_13146 blk_update_request 3 13146 NULL
116032 +caif_stream_recvmsg_13173 caif_stream_recvmsg 4 13173 NULL
116033 +pwr_disable_ps_read_13176 pwr_disable_ps_read 3 13176 NULL
116034 +ucs2_strlen_13178 ucs2_strlen 0 13178 NULL
116035 +dgrp_net_ioctl_13183 dgrp_net_ioctl 2 13183 NULL
116036 +create_trace_uprobe_13184 create_trace_uprobe 1 13184 NULL
116037 +comedi_read_13199 comedi_read 3 13199 NULL
116038 +hash_ipport4_expire_13201 hash_ipport4_expire 4 13201 NULL
116039 +mmc_ext_csd_read_13205 mmc_ext_csd_read 3 13205 NULL
116040 +svm_msrpm_offset_13220 svm_msrpm_offset 0-1 13220 NULL
116041 +fnic_trace_ctrl_write_13229 fnic_trace_ctrl_write 3 13229 NULL
116042 +_iwl_dbgfs_disable_power_off_write_13243 _iwl_dbgfs_disable_power_off_write 3 13243 NULL
116043 +asix_read_cmd_13245 asix_read_cmd 5 13245 NULL
116044 +init_tid_tabs_13252 init_tid_tabs 2-3-4 13252 NULL
116045 +bio_integrity_trim_13259 bio_integrity_trim 3-2 13259 NULL
116046 +simple_attr_write_13260 simple_attr_write 3 13260 NULL
116047 +pmcraid_notify_aen_13274 pmcraid_notify_aen 3 13274 NULL
116048 +il4965_stats_flag_13281 il4965_stats_flag 0-3 13281 NULL
116049 +lpfc_idiag_mbxacc_get_setup_13282 lpfc_idiag_mbxacc_get_setup 0 13282 NULL
116050 +sd_major_13294 sd_major 0-1 13294 NULL
116051 +read_file_phy_err_13318 read_file_phy_err 3 13318 NULL
116052 +kvm_read_nested_guest_page_13337 kvm_read_nested_guest_page 5 13337 NULL
116053 +round_event_name_len_13348 round_event_name_len 0 13348 NULL
116054 +iso_sched_alloc_13377 iso_sched_alloc 1 13377 NULL nohasharray
116055 +wep_key_not_found_read_13377 wep_key_not_found_read 3 13377 &iso_sched_alloc_13377
116056 +ext4_meta_trans_blocks_13380 ext4_meta_trans_blocks 0-3-2 13380 NULL
116057 +lov_mds_md_size_13388 lov_mds_md_size 0-1 13388 NULL nohasharray
116058 +dis_bypass_write_13388 dis_bypass_write 3 13388 &lov_mds_md_size_13388
116059 +netxen_alloc_sds_rings_13417 netxen_alloc_sds_rings 2 13417 NULL
116060 +sctp_setsockopt_peer_primary_addr_13440 sctp_setsockopt_peer_primary_addr 3 13440 NULL
116061 +ath6kl_cfg80211_connect_event_13443 ath6kl_cfg80211_connect_event 7-8-9 13443 NULL
116062 +sb_init_dio_done_wq_13482 sb_init_dio_done_wq 0 13482 NULL
116063 +data_read_13494 data_read 3 13494 NULL
116064 +core_status_13515 core_status 4 13515 NULL
116065 +smk_write_mapped_13519 smk_write_mapped 3 13519 NULL
116066 +bm_init_13529 bm_init 2 13529 NULL
116067 +request_any_context_irq_13530 request_any_context_irq 0 13530 NULL
116068 +llcp_sock_recvmsg_13556 llcp_sock_recvmsg 4 13556 NULL
116069 +SyS_vm86_13557 SyS_vm86 2 13557 NULL
116070 +ieee80211_if_read_ap_power_level_13558 ieee80211_if_read_ap_power_level 3 13558 NULL
116071 +hash_net4_expire_13559 hash_net4_expire 4 13559 NULL
116072 +ubifs_get_idx_gc_leb_13566 ubifs_get_idx_gc_leb 0 13566 NULL
116073 +read_file_antenna_13574 read_file_antenna 3 13574 NULL
116074 +cache_write_13589 cache_write 3 13589 NULL
116075 +Rd_Indx_13602 Rd_Indx 3-2 13602 NULL
116076 +wm8994_bulk_write_13615 wm8994_bulk_write 2-3 13615 NULL
116077 +pmcraid_get_minor_13619 pmcraid_get_minor 0 13619 NULL
116078 +packet_snd_13634 packet_snd 3 13634 NULL
116079 +blk_msg_write_13655 blk_msg_write 3 13655 NULL
116080 +cache_downcall_13666 cache_downcall 3 13666 NULL
116081 +ext3_xattr_list_entries_13682 ext3_xattr_list_entries 0 13682 NULL
116082 +fw_iso_buffer_alloc_13704 fw_iso_buffer_alloc 2 13704 NULL
116083 +audit_unpack_string_13748 audit_unpack_string 3 13748 NULL
116084 +ieee802154_alloc_device_13767 ieee802154_alloc_device 1 13767 NULL
116085 +fb_sys_read_13778 fb_sys_read 3 13778 NULL
116086 +ath6kl_mgmt_powersave_ap_13791 ath6kl_mgmt_powersave_ap 6 13791 NULL
116087 +random_read_13815 random_read 3 13815 NULL
116088 +mutex_lock_interruptible_nested_13817 mutex_lock_interruptible_nested 0 13817 NULL
116089 +hsi_register_board_info_13820 hsi_register_board_info 2 13820 NULL
116090 +___mei_cl_send_13821 ___mei_cl_send 3 13821 NULL
116091 +enc_pools_insert_13849 enc_pools_insert 3 13849 NULL
116092 +evdev_ioctl_compat_13851 evdev_ioctl_compat 2 13851 NULL
116093 +compat_ip_setsockopt_13870 compat_ip_setsockopt 5 13870 NULL
116094 +qp_memcpy_to_queue_13886 qp_memcpy_to_queue 5-2 13886 NULL
116095 +snd_pcm_aio_read_13900 snd_pcm_aio_read 3 13900 NULL
116096 +cfg80211_inform_bss_width_13933 cfg80211_inform_bss_width 9 13933 NULL
116097 +ext3_xattr_block_get_13936 ext3_xattr_block_get 0 13936 NULL
116098 +ieee80211_if_read_dot11MeshForwarding_13940 ieee80211_if_read_dot11MeshForwarding 3 13940 NULL nohasharray
116099 +ocfs2_xa_value_truncate_13940 ocfs2_xa_value_truncate 2 13940 &ieee80211_if_read_dot11MeshForwarding_13940
116100 +iwl_dbgfs_protection_mode_read_13943 iwl_dbgfs_protection_mode_read 3 13943 NULL
116101 +ieee80211_if_read_min_discovery_timeout_13946 ieee80211_if_read_min_discovery_timeout 3 13946 NULL
116102 +lpfc_idiag_queacc_read_13950 lpfc_idiag_queacc_read 3 13950 NULL nohasharray
116103 +pagecache_write_end_13950 pagecache_write_end 0 13950 &lpfc_idiag_queacc_read_13950
116104 +osc_grant_shrink_interval_seq_write_13952 osc_grant_shrink_interval_seq_write 3 13952 NULL
116105 +snd_pcm_plug_slave_size_13967 snd_pcm_plug_slave_size 0-2 13967 NULL
116106 +qcam_read_13977 qcam_read 3 13977 NULL
116107 +dsp_read_13980 dsp_read 2 13980 NULL
116108 +dvb_demux_read_13981 dvb_demux_read 3 13981 NULL
116109 +sddr09_write_data_14014 sddr09_write_data 3 14014 NULL
116110 +btrfs_get_blocks_direct_14016 btrfs_get_blocks_direct 2 14016 NULL
116111 +dmi_format_ids_14018 dmi_format_ids 2 14018 NULL
116112 +iscsi_create_flashnode_conn_14022 iscsi_create_flashnode_conn 4 14022 NULL
116113 +pci_add_ext_cap_save_buffer_14032 pci_add_ext_cap_save_buffer 3 14032 NULL
116114 +dvb_usercopy_14036 dvb_usercopy 2 14036 NULL
116115 +read_def_modal_eeprom_14041 read_def_modal_eeprom 3 14041 NULL
116116 +ieee80211_if_fmt_aid_14055 ieee80211_if_fmt_aid 3 14055 NULL
116117 +ovs_nla_alloc_flow_actions_14056 ovs_nla_alloc_flow_actions 1 14056 NULL
116118 +sta_agg_status_read_14058 sta_agg_status_read 3 14058 NULL
116119 +lov_stripeoffset_seq_write_14078 lov_stripeoffset_seq_write 3 14078 NULL
116120 +do_proc_readlink_14096 do_proc_readlink 3 14096 NULL
116121 +ext4_journal_blocks_per_page_14127 ext4_journal_blocks_per_page 0 14127 NULL
116122 +isku_sysfs_read_light_14140 isku_sysfs_read_light 6 14140 NULL
116123 +em_canid_change_14150 em_canid_change 3 14150 NULL
116124 +gsm_dlci_data_14155 gsm_dlci_data 3 14155 NULL
116125 +midi_alloc_ep_req_14159 midi_alloc_ep_req 2 14159 NULL
116126 +print_input_mask_14168 print_input_mask 3-0 14168 NULL
116127 +ocfs2_xattr_value_truncate_14183 ocfs2_xattr_value_truncate 3 14183 NULL
116128 +datafab_read_data_14186 datafab_read_data 4 14186 NULL
116129 +hfsplus_brec_find_14200 hfsplus_brec_find 0 14200 NULL
116130 +alloc_async_14208 alloc_async 1 14208 NULL
116131 +ath6kl_regread_write_14220 ath6kl_regread_write 3 14220 NULL
116132 +ieee80211_if_write_uapsd_max_sp_len_14233 ieee80211_if_write_uapsd_max_sp_len 3 14233 NULL
116133 +dma_declare_coherent_memory_14244 dma_declare_coherent_memory 4 14244 NULL
116134 +btrfs_token_file_extent_ram_bytes_14247 btrfs_token_file_extent_ram_bytes 0 14247 NULL
116135 +ath6kl_connect_event_14267 ath6kl_connect_event 7-8-9 14267 NULL
116136 +rr_status_14293 rr_status 5 14293 NULL
116137 +read_default_ldt_14302 read_default_ldt 2 14302 NULL
116138 +oo_objects_14319 oo_objects 0 14319 NULL
116139 +ll_get_user_pages_14328 ll_get_user_pages 3-2-0 14328 NULL
116140 +p9_client_zc_rpc_14345 p9_client_zc_rpc 7 14345 NULL
116141 +alloc_tx_struct_14349 alloc_tx_struct 1 14349 NULL
116142 +hash_ipportnet4_expire_14354 hash_ipportnet4_expire 4 14354 NULL
116143 +snd_pcm_lib_readv_14363 snd_pcm_lib_readv 0-3 14363 NULL
116144 +lowpan_read_14369 lowpan_read 3 14369 NULL
116145 +ath6kl_regdump_read_14393 ath6kl_regdump_read 3 14393 NULL
116146 +smk_write_onlycap_14400 smk_write_onlycap 3 14400 NULL
116147 +mtd_concat_create_14416 mtd_concat_create 2 14416 NULL
116148 +get_kcore_size_14425 get_kcore_size 0 14425 NULL
116149 +_iwl_dbgfs_sram_write_14439 _iwl_dbgfs_sram_write 3 14439 NULL
116150 +block_size_14443 block_size 0 14443 NULL
116151 +lmv_user_md_size_14456 lmv_user_md_size 0-1 14456 NULL
116152 +snd_emu10k1_proc_spdif_status_14457 snd_emu10k1_proc_spdif_status 4-5 14457 NULL
116153 +ath10k_write_htt_stats_mask_14458 ath10k_write_htt_stats_mask 3 14458 NULL
116154 +lustre_msg_size_v2_14470 lustre_msg_size_v2 0 14470 NULL
116155 +dma_transfer_size_14473 dma_transfer_size 0 14473 NULL
116156 +udplite_getfrag_14479 udplite_getfrag 3-4 14479 NULL
116157 +ieee80211_if_read_dot11MeshGateAnnouncementProtocol_14486 ieee80211_if_read_dot11MeshGateAnnouncementProtocol 3 14486 NULL
116158 +split_state_14491 split_state 0 14491 NULL
116159 +ocfs2_debug_read_14507 ocfs2_debug_read 3 14507 NULL
116160 +dataflash_read_user_otp_14536 dataflash_read_user_otp 3-2 14536 NULL nohasharray
116161 +ep0_write_14536 ep0_write 3 14536 &dataflash_read_user_otp_14536
116162 +picolcd_debug_eeprom_read_14549 picolcd_debug_eeprom_read 3 14549 NULL
116163 +qp_host_alloc_queue_14566 qp_host_alloc_queue 1 14566 NULL
116164 +SyS_setdomainname_14569 SyS_setdomainname 2 14569 NULL
116165 +idmap_pipe_downcall_14591 idmap_pipe_downcall 3 14591 NULL
116166 +ceph_osdc_alloc_request_14597 ceph_osdc_alloc_request 3 14597 NULL
116167 +dbJoin_14644 dbJoin 0 14644 NULL
116168 +profile_replace_14652 profile_replace 3 14652 NULL
116169 +usnic_vnic_dump_14662 usnic_vnic_dump 3 14662 NULL
116170 +min_bytes_needed_14675 min_bytes_needed 0 14675 NULL
116171 +nvme_trans_log_info_exceptions_14677 nvme_trans_log_info_exceptions 3 14677 NULL
116172 +pipeline_enc_tx_stat_fifo_int_read_14680 pipeline_enc_tx_stat_fifo_int_read 3 14680 NULL
116173 +ieee80211_if_fmt_rc_rateidx_mask_2ghz_14683 ieee80211_if_fmt_rc_rateidx_mask_2ghz 3 14683 NULL
116174 +SyS_fsetxattr_14702 SyS_fsetxattr 4 14702 NULL
116175 +persistent_ram_ecc_string_14704 persistent_ram_ecc_string 0 14704 NULL
116176 +u_audio_playback_14709 u_audio_playback 3 14709 NULL
116177 +rtw_cbuf_alloc_14710 rtw_cbuf_alloc 1 14710 NULL
116178 +vfd_write_14717 vfd_write 3 14717 NULL
116179 +__blk_end_request_14729 __blk_end_request 3 14729 NULL
116180 +raid1_resize_14740 raid1_resize 2 14740 NULL
116181 +i915_error_state_buf_init_14742 i915_error_state_buf_init 2 14742 NULL
116182 +btrfs_inode_extref_name_len_14752 btrfs_inode_extref_name_len 0 14752 NULL
116183 +rx_rx_cmplt_read_14753 rx_rx_cmplt_read 3 14753 NULL
116184 +regmap_range_read_file_14775 regmap_range_read_file 3 14775 NULL
116185 +sta_dev_read_14782 sta_dev_read 3 14782 NULL
116186 +keys_proc_write_14792 keys_proc_write 3 14792 NULL
116187 +ext4_kvmalloc_14796 ext4_kvmalloc 1 14796 NULL
116188 +__kfifo_in_14797 __kfifo_in 3-0 14797 NULL
116189 +hpet_readl_14801 hpet_readl 0 14801 NULL nohasharray
116190 +snd_als300_gcr_read_14801 snd_als300_gcr_read 0 14801 &hpet_readl_14801
116191 +do_tune_cpucache_14828 do_tune_cpucache 2 14828 NULL
116192 +mrp_attr_create_14853 mrp_attr_create 3 14853 NULL
116193 +lcd_write_14857 lcd_write 3 14857 NULL
116194 +get_user_cpu_mask_14861 get_user_cpu_mask 2 14861 NULL
116195 +gmux_index_read8_14890 gmux_index_read8 0 14890 NULL
116196 +acpi_os_allocate_14892 acpi_os_allocate 1 14892 NULL
116197 +SYSC_readv_14901 SYSC_readv 3 14901 NULL
116198 +__arch_hweight64_14923 __arch_hweight64 0 14923 NULL nohasharray
116199 +qp_memcpy_to_queue_iov_14923 qp_memcpy_to_queue_iov 5-2 14923 &__arch_hweight64_14923
116200 +ocfs2_expand_nonsparse_inode_14936 ocfs2_expand_nonsparse_inode 3-4 14936 NULL
116201 +queue_cnt_14951 queue_cnt 0 14951 NULL
116202 +unix_dgram_recvmsg_14952 unix_dgram_recvmsg 4 14952 NULL
116203 +videobuf_read_stream_14956 videobuf_read_stream 3 14956 NULL
116204 +mce_flush_rx_buffer_14976 mce_flush_rx_buffer 2 14976 NULL
116205 +setkey_14987 setkey 3 14987 NULL nohasharray
116206 +gpio_twl4030_write_14987 gpio_twl4030_write 1 14987 &setkey_14987
116207 +blk_integrity_tuple_size_15027 blk_integrity_tuple_size 0 15027 NULL
116208 +read_file_node_aggr_15040 read_file_node_aggr 3 15040 NULL
116209 +cld_pipe_downcall_15058 cld_pipe_downcall 3 15058 NULL
116210 +ieee80211_if_read_uapsd_max_sp_len_15067 ieee80211_if_read_uapsd_max_sp_len 3 15067 NULL
116211 +nfs4_write_cached_acl_15070 nfs4_write_cached_acl 4 15070 NULL
116212 +ntfs_copy_from_user_15072 ntfs_copy_from_user 0-5-3 15072 NULL
116213 +pppoe_recvmsg_15073 pppoe_recvmsg 4 15073 NULL
116214 +smscore_load_firmware_family2_15086 smscore_load_firmware_family2 3 15086 NULL
116215 +btrfs_readpage_15094 btrfs_readpage 0 15094 NULL
116216 +compat_SyS_pwritev_15118 compat_SyS_pwritev 3 15118 NULL
116217 +hex_dump_to_buffer_15121 hex_dump_to_buffer 6 15121 NULL
116218 +start_port_15124 start_port 0 15124 NULL
116219 +ipwireless_ppp_mru_15153 ipwireless_ppp_mru 0 15153 NULL
116220 +self_check_not_bad_15175 self_check_not_bad 0 15175 NULL
116221 +SYSC_setdomainname_15180 SYSC_setdomainname 2 15180 NULL
116222 +iscsi_create_endpoint_15193 iscsi_create_endpoint 1 15193 NULL
116223 +mtt_alloc_res_15211 mtt_alloc_res 5 15211 NULL
116224 +bfad_debugfs_write_regrd_15218 bfad_debugfs_write_regrd 3 15218 NULL
116225 +iwl_dbgfs_sram_write_15239 iwl_dbgfs_sram_write 3 15239 NULL
116226 +il_dbgfs_rx_stats_read_15243 il_dbgfs_rx_stats_read 3 15243 NULL
116227 +simple_strtol_15273 simple_strtol 0 15273 NULL
116228 +fw_realloc_buffer_15280 fw_realloc_buffer 2 15280 NULL
116229 +kovaplus_sysfs_read_15337 kovaplus_sysfs_read 6 15337 NULL
116230 +ioread16_15342 ioread16 0 15342 NULL
116231 +ept_prefetch_gpte_15348 ept_prefetch_gpte 4 15348 NULL
116232 +acpi_ut_create_string_object_15360 acpi_ut_create_string_object 1 15360 NULL
116233 +ext4_direct_IO_15369 ext4_direct_IO 4 15369 NULL
116234 +graph_depth_read_15371 graph_depth_read 3 15371 NULL
116235 +fq_codel_zalloc_15378 fq_codel_zalloc 1 15378 NULL
116236 +alloc_fddidev_15382 alloc_fddidev 1 15382 NULL
116237 +pipeline_csum_to_rx_xfer_swi_read_15403 pipeline_csum_to_rx_xfer_swi_read 3 15403 NULL
116238 +get_modalias_15406 get_modalias 2 15406 NULL
116239 +blockdev_direct_IO_15408 blockdev_direct_IO 5 15408 NULL
116240 +__videobuf_copy_to_user_15423 __videobuf_copy_to_user 4-0 15423 NULL
116241 +rtw_cfg80211_rx_action_p2p_15432 rtw_cfg80211_rx_action_p2p 3 15432 NULL
116242 +tcp_mtu_to_mss_15438 tcp_mtu_to_mss 2-0 15438 NULL
116243 +hpsa_change_queue_depth_15449 hpsa_change_queue_depth 2 15449 NULL
116244 +insert_old_idx_znode_15500 insert_old_idx_znode 0 15500 NULL
116245 +zd_chip_is_zd1211b_15518 zd_chip_is_zd1211b 0 15518 NULL
116246 +ifx_spi_write_15531 ifx_spi_write 3 15531 NULL
116247 +p9_check_zc_errors_15534 p9_check_zc_errors 4 15534 NULL
116248 +xfrm_state_mtu_15548 xfrm_state_mtu 0-2 15548 NULL
116249 +snd_pcm_channel_info_15572 snd_pcm_channel_info 0 15572 NULL
116250 +persistent_status_15574 persistent_status 4 15574 NULL
116251 +bnx2fc_process_unsol_compl_15576 bnx2fc_process_unsol_compl 2 15576 NULL
116252 +vme_user_write_15587 vme_user_write 3 15587 NULL
116253 +compat_fillonedir_15620 compat_fillonedir 3 15620 NULL
116254 +proc_loginuid_read_15631 proc_loginuid_read 3 15631 NULL
116255 +tomoyo_scan_bprm_15642 tomoyo_scan_bprm 2-4 15642 NULL nohasharray
116256 +pipeline_hs_tx_stat_fifo_int_read_15642 pipeline_hs_tx_stat_fifo_int_read 3 15642 &tomoyo_scan_bprm_15642 nohasharray
116257 +sk_memory_allocated_add_15642 sk_memory_allocated_add 2 15642 &pipeline_hs_tx_stat_fifo_int_read_15642
116258 +joydev_handle_JSIOCSBTNMAP_15643 joydev_handle_JSIOCSBTNMAP 3 15643 NULL
116259 +fs_path_add_15648 fs_path_add 3 15648 NULL
116260 +__do_readpage_15652 __do_readpage 0 15652 NULL
116261 +xsd_read_15653 xsd_read 3 15653 NULL
116262 +unix_bind_15668 unix_bind 3 15668 NULL
116263 +dm_read_15674 dm_read 3 15674 NULL nohasharray
116264 +SyS_connect_15674 SyS_connect 3 15674 &dm_read_15674
116265 +uinput_str_to_user_15695 uinput_str_to_user 3 15695 NULL
116266 +__sk_migrate_realloc_15709 __sk_migrate_realloc 3 15709 NULL
116267 +tracing_snapshot_write_15719 tracing_snapshot_write 3 15719 NULL
116268 +HiSax_readstatus_15752 HiSax_readstatus 2 15752 NULL
116269 +smk_read_direct_15803 smk_read_direct 3 15803 NULL
116270 +gnttab_expand_15817 gnttab_expand 1 15817 NULL nohasharray
116271 +nameseq_list_15817 nameseq_list 3-0 15817 &gnttab_expand_15817
116272 +afs_proc_rootcell_write_15822 afs_proc_rootcell_write 3 15822 NULL
116273 +table_size_15851 table_size 0-1-2 15851 NULL
116274 +write_file_tx99_15856 write_file_tx99 3 15856 NULL
116275 +media_entity_init_15870 media_entity_init 2-4 15870 NULL nohasharray
116276 +ubi_io_write_15870 ubi_io_write 0 15870 &media_entity_init_15870
116277 +__mptctl_ioctl_15875 __mptctl_ioctl 2 15875 NULL
116278 +parse_audio_stream_data_15937 parse_audio_stream_data 3 15937 NULL
116279 +power_read_15939 power_read 3 15939 NULL
116280 +lpfc_idiag_drbacc_read_15948 lpfc_idiag_drbacc_read 3 15948 NULL
116281 +snd_pcm_lib_read_transfer_15952 snd_pcm_lib_read_transfer 5-2-4 15952 NULL
116282 +memblock_virt_alloc_try_nid_15954 memblock_virt_alloc_try_nid 1 15954 NULL
116283 +viafb_vt1636_proc_write_16018 viafb_vt1636_proc_write 3 16018 NULL
116284 +dccp_recvmsg_16056 dccp_recvmsg 4 16056 NULL
116285 +read_file_spectral_period_16057 read_file_spectral_period 3 16057 NULL
116286 +si5351_msynth_params_address_16062 si5351_msynth_params_address 0-1 16062 NULL
116287 +isr_tx_exch_complete_read_16103 isr_tx_exch_complete_read 3 16103 NULL
116288 +isr_hw_pm_mode_changes_read_16110 isr_hw_pm_mode_changes_read 3 16110 NULL nohasharray
116289 +dma_tx_requested_read_16110 dma_tx_requested_read 3 16110 &isr_hw_pm_mode_changes_read_16110
116290 +snd_dma_pointer_16126 snd_dma_pointer 0-2 16126 NULL
116291 +fsm_init_16134 fsm_init 2 16134 NULL
116292 +ext4_xattr_block_get_16148 ext4_xattr_block_get 0 16148 NULL
116293 +optimal_reclaimed_pages_16172 optimal_reclaimed_pages 0 16172 NULL
116294 +mapping_level_16188 mapping_level 2-0 16188 NULL
116295 +i40e_allocate_virt_mem_d_16191 i40e_allocate_virt_mem_d 3 16191 NULL
116296 +ath10k_htt_rx_ring_size_16201 ath10k_htt_rx_ring_size 0 16201 NULL
116297 +cipso_v4_map_cat_rng_hton_16203 cipso_v4_map_cat_rng_hton 0 16203 NULL
116298 +SyS_pselect6_16210 SyS_pselect6 1 16210 NULL
116299 +create_table_16213 create_table 2 16213 NULL
116300 +ath9k_hw_ar9287_dump_eeprom_16224 ath9k_hw_ar9287_dump_eeprom 5-4 16224 NULL
116301 +atomic_read_file_16227 atomic_read_file 3 16227 NULL
116302 +BcmGetSectionValStartOffset_16235 BcmGetSectionValStartOffset 0 16235 NULL
116303 +lov_prep_brw_set_16246 lov_prep_brw_set 3 16246 NULL
116304 +i40e_dbg_dump_read_16247 i40e_dbg_dump_read 3 16247 NULL
116305 +il_dbgfs_disable_ht40_write_16249 il_dbgfs_disable_ht40_write 3 16249 NULL
116306 +SyS_fgetxattr_16254 SyS_fgetxattr 4 16254 NULL
116307 +reiserfs_acl_count_16265 reiserfs_acl_count 0-1 16265 NULL
116308 +ocfs2_xattr_bucket_value_truncate_16279 ocfs2_xattr_bucket_value_truncate 4 16279 NULL
116309 +nand_bch_init_16280 nand_bch_init 3-2 16280 NULL nohasharray
116310 +drbd_setsockopt_16280 drbd_setsockopt 5 16280 &nand_bch_init_16280
116311 +account_16283 account 0-4-2 16283 NULL nohasharray
116312 +mirror_status_16283 mirror_status 5 16283 &account_16283
116313 +jumpshot_read_data_16287 jumpshot_read_data 4 16287 NULL
116314 +mo_xattr_get_16288 mo_xattr_get 0 16288 NULL
116315 +stk_allocate_buffers_16291 stk_allocate_buffers 2 16291 NULL
116316 +rbd_segment_offset_16293 rbd_segment_offset 0-2 16293 NULL
116317 +rsc_mgr_init_16299 rsc_mgr_init 3 16299 NULL
116318 +kvm_handle_hva_range_16312 kvm_handle_hva_range 3-2 16312 NULL
116319 +sysfs_create_groups_16360 sysfs_create_groups 0 16360 NULL
116320 +total_ps_buffered_read_16365 total_ps_buffered_read 3 16365 NULL
116321 +iscsi_tcp_conn_setup_16376 iscsi_tcp_conn_setup 2 16376 NULL
116322 +i8042_create_kbd_port_16379 i8042_create_kbd_port 0 16379 NULL
116323 +ieee80211_if_read_tsf_16420 ieee80211_if_read_tsf 3 16420 NULL
116324 +rxrpc_server_keyring_16431 rxrpc_server_keyring 3 16431 NULL
116325 +__bio_add_page_16435 __bio_add_page 0-4 16435 NULL
116326 +cmdline_store_16442 cmdline_store 4 16442 NULL
116327 +btrfs_truncate_inode_items_16452 btrfs_truncate_inode_items 4 16452 NULL
116328 +netlink_change_ngroups_16457 netlink_change_ngroups 2 16457 NULL
116329 +req_capsule_get_size_16467 req_capsule_get_size 0 16467 NULL
116330 +tracing_readme_read_16493 tracing_readme_read 3 16493 NULL
116331 +KEY_OFFSET_16504 KEY_OFFSET 0 16504 NULL
116332 +snd_interval_max_16529 snd_interval_max 0 16529 NULL
116333 +raid10_resize_16537 raid10_resize 2 16537 NULL
116334 +lpfc_debugfs_read_16566 lpfc_debugfs_read 3 16566 NULL
116335 +agp_allocate_memory_wrap_16576 agp_allocate_memory_wrap 1 16576 NULL
116336 +lustre_msg_hdr_size_v2_16589 lustre_msg_hdr_size_v2 0 16589 NULL
116337 +gmux_index_read32_16604 gmux_index_read32 0 16604 NULL
116338 +compat_SyS_migrate_pages_16618 compat_SyS_migrate_pages 2 16618 NULL
116339 +rtw_set_wpa_ie_16633 rtw_set_wpa_ie 3 16633 NULL
116340 +btrfs_get_token_32_16651 btrfs_get_token_32 0 16651 NULL
116341 +__wa_populate_dto_urb_16699 __wa_populate_dto_urb 3-4 16699 NULL
116342 +__proc_lnet_buffers_16717 __proc_lnet_buffers 5 16717 NULL
116343 +__copy_to_user_swizzled_16748 __copy_to_user_swizzled 3-4 16748 NULL
116344 +arcmsr_adjust_disk_queue_depth_16756 arcmsr_adjust_disk_queue_depth 2 16756 NULL
116345 +blk_rq_map_user_iov_16772 blk_rq_map_user_iov 5 16772 NULL
116346 +i2o_parm_issue_16790 i2o_parm_issue 0 16790 NULL
116347 +get_server_iovec_16804 get_server_iovec 2 16804 NULL
116348 +drm_malloc_ab_16831 drm_malloc_ab 1-2 16831 NULL
116349 +scsi_mode_sense_16835 scsi_mode_sense 5 16835 NULL
116350 +hfsplus_min_io_size_16859 hfsplus_min_io_size 0 16859 NULL
116351 +alloc_idx_lebs_16872 alloc_idx_lebs 2 16872 NULL
116352 +carl9170_debugfs_ampdu_state_read_16873 carl9170_debugfs_ampdu_state_read 3 16873 NULL
116353 +st_write_16874 st_write 3 16874 NULL
116354 +__kfifo_peek_n_16877 __kfifo_peek_n 0 16877 NULL
116355 +psb_unlocked_ioctl_16926 psb_unlocked_ioctl 2 16926 NULL nohasharray
116356 +snd_gf1_mem_proc_dump_16926 snd_gf1_mem_proc_dump 5 16926 &psb_unlocked_ioctl_16926
116357 +_sp2d_alloc_16944 _sp2d_alloc 1-2-3 16944 NULL
116358 +squashfs_read_table_16945 squashfs_read_table 3 16945 NULL
116359 +keyctl_instantiate_key_iov_16969 keyctl_instantiate_key_iov 3 16969 NULL
116360 +ceph_read_dir_17005 ceph_read_dir 3 17005 NULL
116361 +copy_counters_to_user_17027 copy_counters_to_user 5 17027 NULL
116362 +C_SYSC_keyctl_17041 C_SYSC_keyctl 4 17041 NULL
116363 +jffs2_trusted_setxattr_17048 jffs2_trusted_setxattr 4 17048 NULL
116364 +__arch_hweight32_17060 __arch_hweight32 0 17060 NULL
116365 +sddr55_read_data_17072 sddr55_read_data 4 17072 NULL
116366 +dvb_dvr_read_17073 dvb_dvr_read 3 17073 NULL
116367 +simple_transaction_read_17076 simple_transaction_read 3 17076 NULL
116368 +carl9170_debugfs_mem_usage_read_17084 carl9170_debugfs_mem_usage_read 3 17084 NULL
116369 +entry_length_17093 entry_length 0 17093 NULL
116370 +write_mem_17114 write_mem 3 17114 NULL
116371 +pvr2_hdw_state_report_17121 pvr2_hdw_state_report 3 17121 NULL
116372 +nouveau_instobj_create__17144 nouveau_instobj_create_ 4 17144 NULL
116373 +jumpshot_write_data_17151 jumpshot_write_data 4 17151 NULL
116374 +sep_read_17161 sep_read 3 17161 NULL
116375 +befs_nls2utf_17163 befs_nls2utf 3 17163 NULL
116376 +tx_tx_start_templates_read_17164 tx_tx_start_templates_read 3 17164 NULL
116377 +UniStrnlen_17169 UniStrnlen 0 17169 NULL
116378 +access_remote_vm_17189 access_remote_vm 0 17189 NULL nohasharray
116379 +iwl_dbgfs_txfifo_flush_write_17189 iwl_dbgfs_txfifo_flush_write 3 17189 &access_remote_vm_17189
116380 +iscsit_find_cmd_from_itt_or_dump_17194 iscsit_find_cmd_from_itt_or_dump 3 17194 NULL nohasharray
116381 +driver_state_read_17194 driver_state_read 3 17194 &iscsit_find_cmd_from_itt_or_dump_17194
116382 +sync_request_17208 sync_request 2 17208 NULL
116383 +dn_recvmsg_17213 dn_recvmsg 4 17213 NULL
116384 +lprocfs_read_frac_helper_17261 lprocfs_read_frac_helper 0 17261 NULL
116385 +error_error_frame_cts_nul_flid_read_17262 error_error_frame_cts_nul_flid_read 3 17262 NULL
116386 +alloc_ep_17269 alloc_ep 1 17269 NULL
116387 +pg_read_17276 pg_read 3 17276 NULL
116388 +raw_recvmsg_17277 raw_recvmsg 4 17277 NULL
116389 +hmac_sha256_17278 hmac_sha256 2 17278 NULL
116390 +neigh_hash_grow_17283 neigh_hash_grow 2 17283 NULL
116391 +minstrel_stats_read_17290 minstrel_stats_read 3 17290 NULL
116392 +ieee80211_if_fmt_dot11MeshForwarding_17301 ieee80211_if_fmt_dot11MeshForwarding 3 17301 NULL
116393 +mb_cache_create_17307 mb_cache_create 2 17307 NULL
116394 +gnttab_map_frames_v2_17314 gnttab_map_frames_v2 2 17314 NULL
116395 +ieee80211_if_read_dot11MeshHWMPperrMinInterval_17346 ieee80211_if_read_dot11MeshHWMPperrMinInterval 3 17346 NULL
116396 +ath6kl_wmi_send_mgmt_cmd_17347 ath6kl_wmi_send_mgmt_cmd 7 17347 NULL
116397 +mdc_import_seq_write_17409 mdc_import_seq_write 3 17409 NULL
116398 +lpfc_debugfs_dif_err_write_17424 lpfc_debugfs_dif_err_write 3 17424 NULL
116399 +sta_connected_time_read_17435 sta_connected_time_read 3 17435 NULL
116400 +libcfs_ipif_enumerate_17445 libcfs_ipif_enumerate 0 17445 NULL
116401 +nla_get_u32_17455 nla_get_u32 0 17455 NULL
116402 +__ref_totlen_17461 __ref_totlen 0 17461 NULL
116403 +probe_kernel_write_17481 probe_kernel_write 3 17481 NULL
116404 +TSS_rawhmac_17486 TSS_rawhmac 3 17486 NULL
116405 +lbs_highrssi_write_17515 lbs_highrssi_write 3 17515 NULL
116406 +qp_free_res_17541 qp_free_res 5 17541 NULL
116407 +__copy_to_user_17551 __copy_to_user 0-3 17551 NULL
116408 +copy_from_user_17559 copy_from_user 3-0 17559 NULL
116409 +snd_pcm_action_lock_irq_17569 snd_pcm_action_lock_irq 0 17569 NULL
116410 +hash_netport4_expire_17573 hash_netport4_expire 4 17573 NULL
116411 +acpi_ut_create_package_object_17594 acpi_ut_create_package_object 1 17594 NULL
116412 +neigh_hash_alloc_17595 neigh_hash_alloc 1 17595 NULL
116413 +osst_execute_17607 osst_execute 7-6 17607 NULL
116414 +ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout_17618 ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout 3 17618 NULL
116415 +dma_map_page_17628 dma_map_page 0 17628 NULL
116416 +twl4030_set_gpio_direction_17645 twl4030_set_gpio_direction 1 17645 NULL
116417 +SYSC_migrate_pages_17657 SYSC_migrate_pages 2 17657 NULL
116418 +packet_setsockopt_17662 packet_setsockopt 5 17662 NULL nohasharray
116419 +ubi_io_read_data_17662 ubi_io_read_data 0 17662 &packet_setsockopt_17662
116420 +pwr_enable_ps_read_17686 pwr_enable_ps_read 3 17686 NULL
116421 +filemap_fdatawait_17688 filemap_fdatawait 0 17688 NULL
116422 +venus_rename_17707 venus_rename 4-5 17707 NULL
116423 +exofs_read_lookup_dev_table_17733 exofs_read_lookup_dev_table 3 17733 NULL
116424 +sctpprobe_read_17741 sctpprobe_read 3 17741 NULL
116425 +ubifs_leb_change_17789 ubifs_leb_change 0 17789 NULL
116426 +shrink_slab_node_17794 shrink_slab_node 3 17794 NULL
116427 +lpuart_copy_rx_to_tty_17801 lpuart_copy_rx_to_tty 3 17801 NULL
116428 +gnet_stats_copy_app_17821 gnet_stats_copy_app 3 17821 NULL
116429 +cipso_v4_gentag_rbm_17836 cipso_v4_gentag_rbm 0 17836 NULL
116430 +em28xx_audio_ep_packet_size_17844 em28xx_audio_ep_packet_size 0 17844 NULL
116431 +dm_stats_message_17863 dm_stats_message 5 17863 NULL
116432 +sisusb_send_bulk_msg_17864 sisusb_send_bulk_msg 3 17864 NULL
116433 +alloc_sja1000dev_17868 alloc_sja1000dev 1 17868 NULL
116434 +virtio_cread32_17873 virtio_cread32 0 17873 NULL
116435 +ray_cs_essid_proc_write_17875 ray_cs_essid_proc_write 3 17875 NULL
116436 +orinoco_set_key_17878 orinoco_set_key 5-7 17878 NULL nohasharray
116437 +i40e_align_l2obj_base_17878 i40e_align_l2obj_base 0-1 17878 &orinoco_set_key_17878
116438 +init_per_cpu_17880 init_per_cpu 1 17880 NULL
116439 +ieee80211_if_fmt_dot11MeshMaxPeerLinks_17883 ieee80211_if_fmt_dot11MeshMaxPeerLinks 3 17883 NULL
116440 +ieee80211_if_fmt_dot11MeshHWMPRootMode_17890 ieee80211_if_fmt_dot11MeshHWMPRootMode 3 17890 NULL
116441 +dev_pm_opp_get_opp_count_17911 dev_pm_opp_get_opp_count 0 17911 NULL
116442 +xfs_buf_associate_memory_17915 xfs_buf_associate_memory 3 17915 NULL
116443 +tipc_port_iovec_rcv_17921 tipc_port_iovec_rcv 3 17921 NULL
116444 +scsi_bufflen_17933 scsi_bufflen 0 17933 NULL
116445 +__mutex_lock_check_stamp_17947 __mutex_lock_check_stamp 0 17947 NULL
116446 +beacon_interval_write_17952 beacon_interval_write 3 17952 NULL
116447 +calc_nr_buckets_17976 calc_nr_buckets 0 17976 NULL
116448 +ext4_ext_calc_credits_for_single_extent_17983 ext4_ext_calc_credits_for_single_extent 0-2 17983 NULL
116449 +smk_write_cipso_17989 smk_write_cipso 3 17989 NULL
116450 +gnttab_max_grant_frames_17993 gnttab_max_grant_frames 0 17993 NULL
116451 +pvr2_v4l2_read_18006 pvr2_v4l2_read 3 18006 NULL
116452 +cpufreq_add_dev_symlink_18028 cpufreq_add_dev_symlink 0 18028 NULL
116453 +o2hb_highest_node_18034 o2hb_highest_node 0 18034 NULL
116454 +cryptd_alloc_instance_18048 cryptd_alloc_instance 2-3 18048 NULL
116455 +__btrfs_drop_extents_18049 __btrfs_drop_extents 5 18049 NULL
116456 +ddebug_proc_write_18055 ddebug_proc_write 3 18055 NULL
116457 +lua_sysfs_read_18062 lua_sysfs_read 6 18062 NULL
116458 +fpregs_get_18066 fpregs_get 4 18066 NULL
116459 +kvm_read_guest_page_18074 kvm_read_guest_page 5 18074 NULL
116460 +SYSC_pselect6_18076 SYSC_pselect6 1 18076 NULL
116461 +SYSC_semtimedop_18091 SYSC_semtimedop 3 18091 NULL
116462 +mpi_alloc_18094 mpi_alloc 1 18094 NULL
116463 +hfs_direct_IO_18104 hfs_direct_IO 4 18104 NULL
116464 +dfs_file_read_18116 dfs_file_read 3 18116 NULL
116465 +svc_getnl_18120 svc_getnl 0 18120 NULL
116466 +paging32_gpte_to_gfn_lvl_18131 paging32_gpte_to_gfn_lvl 0-2-1 18131 NULL
116467 +selinux_inode_setsecurity_18148 selinux_inode_setsecurity 4 18148 NULL
116468 +is_idx_node_in_use_18165 is_idx_node_in_use 0 18165 NULL
116469 +pccard_store_cis_18176 pccard_store_cis 6 18176 NULL
116470 +snd_pcm_hw_refine_user_18204 snd_pcm_hw_refine_user 0 18204 NULL
116471 +orinoco_add_extscan_result_18207 orinoco_add_extscan_result 3 18207 NULL
116472 +gsm_control_message_18209 gsm_control_message 4 18209 NULL
116473 +do_ipv6_setsockopt_18215 do_ipv6_setsockopt 5 18215 NULL
116474 +gnttab_alloc_grant_references_18240 gnttab_alloc_grant_references 1 18240 NULL
116475 +alloc_trace_uprobe_18247 alloc_trace_uprobe 3 18247 NULL
116476 +rfcomm_sock_setsockopt_18254 rfcomm_sock_setsockopt 5 18254 NULL
116477 +qdisc_class_hash_alloc_18262 qdisc_class_hash_alloc 1 18262 NULL
116478 +gfs2_alloc_sort_buffer_18275 gfs2_alloc_sort_buffer 1 18275 NULL
116479 +alloc_ring_18278 alloc_ring 2-4 18278 NULL
116480 +find_dirty_idx_leb_18280 find_dirty_idx_leb 0 18280 NULL
116481 +bio_phys_segments_18281 bio_phys_segments 0 18281 NULL nohasharray
116482 +nouveau_subdev_create__18281 nouveau_subdev_create_ 7 18281 &bio_phys_segments_18281
116483 +ext4_readpages_18283 ext4_readpages 4 18283 NULL
116484 +mmc_send_bus_test_18285 mmc_send_bus_test 4 18285 NULL
116485 +um_idi_write_18293 um_idi_write 3 18293 NULL
116486 +nouveau_disp_create__18305 nouveau_disp_create_ 4-7 18305 NULL
116487 +vga_r_18310 vga_r 0 18310 NULL
116488 +class_add_profile_18315 class_add_profile 1-3-5 18315 NULL
116489 +csio_mem_read_18319 csio_mem_read 3 18319 NULL
116490 +alloc_and_copy_string_18321 alloc_and_copy_string 2 18321 NULL
116491 +ecryptfs_send_message_18322 ecryptfs_send_message 2 18322 NULL
116492 +bio_integrity_advance_18324 bio_integrity_advance 2 18324 NULL
116493 +copy_page_to_iter_18345 copy_page_to_iter 3-0 18345 NULL
116494 +lcd_proc_write_18351 lcd_proc_write 3 18351 NULL
116495 +pwr_power_save_off_read_18355 pwr_power_save_off_read 3 18355 NULL
116496 +SyS_process_vm_readv_18366 SyS_process_vm_readv 3-5 18366 NULL
116497 +ep_io_18367 ep_io 0 18367 NULL
116498 +qib_user_sdma_num_pages_18371 qib_user_sdma_num_pages 0 18371 NULL
116499 +__ceph_getxattr_18386 __ceph_getxattr 0 18386 NULL
116500 +ci_role_write_18388 ci_role_write 3 18388 NULL
116501 +adis16136_show_serial_18402 adis16136_show_serial 3 18402 NULL
116502 +rtl8169_rx_fill_18416 rtl8169_rx_fill 0 18416 NULL
116503 +memblock_virt_alloc_node_nopanic_18431 memblock_virt_alloc_node_nopanic 1 18431 NULL
116504 +iscsi_create_flashnode_sess_18433 iscsi_create_flashnode_sess 4 18433 NULL
116505 +snd_hda_get_connections_18437 snd_hda_get_connections 0 18437 NULL
116506 +fuse_perform_write_18457 fuse_perform_write 4 18457 NULL
116507 +regset_tls_set_18459 regset_tls_set 4 18459 NULL
116508 +pci_vpd_lrdt_size_18479 pci_vpd_lrdt_size 0 18479 NULL nohasharray
116509 +mite_bytes_in_transit_18479 mite_bytes_in_transit 0 18479 &pci_vpd_lrdt_size_18479
116510 +udpv6_setsockopt_18487 udpv6_setsockopt 5 18487 NULL
116511 +btrfs_fiemap_18501 btrfs_fiemap 3 18501 NULL
116512 +__copy_user_zeroing_intel_18510 __copy_user_zeroing_intel 0-3 18510 NULL
116513 +snd_vx_inb_18514 snd_vx_inb 0 18514 NULL
116514 +snd_gus_dram_poke_18525 snd_gus_dram_poke 4 18525 NULL
116515 +nouveau_fifo_channel_create__18530 nouveau_fifo_channel_create_ 9 18530 NULL
116516 +tipc_send2port_18531 tipc_send2port 4 18531 NULL
116517 +seq_copy_in_user_18543 seq_copy_in_user 3 18543 NULL
116518 +sas_change_queue_depth_18555 sas_change_queue_depth 2 18555 NULL
116519 +smk_write_rules_list_18565 smk_write_rules_list 3 18565 NULL
116520 +debug_output_18575 debug_output 3 18575 NULL
116521 +filemap_fdatawait_range_18600 filemap_fdatawait_range 0 18600 NULL nohasharray
116522 +slabinfo_write_18600 slabinfo_write 3 18600 &filemap_fdatawait_range_18600
116523 +iowarrior_write_18604 iowarrior_write 3 18604 NULL
116524 +from_buffer_18625 from_buffer 3 18625 NULL
116525 +snd_pcm_oss_write3_18657 snd_pcm_oss_write3 0-3 18657 NULL
116526 +ieee80211_if_fmt_rssi_threshold_18664 ieee80211_if_fmt_rssi_threshold 3 18664 NULL
116527 +xfs_iext_insert_18667 xfs_iext_insert 3 18667 NULL
116528 +fnic_stats_debugfs_read_18688 fnic_stats_debugfs_read 3 18688 NULL
116529 +echo_client_prep_commit_18693 echo_client_prep_commit 8 18693 NULL
116530 +iwl_dbgfs_rx_handlers_read_18708 iwl_dbgfs_rx_handlers_read 3 18708 NULL
116531 +ceph_alloc_page_vector_18710 ceph_alloc_page_vector 1 18710 NULL
116532 +blk_rq_bytes_18715 blk_rq_bytes 0 18715 NULL
116533 +nfs4_init_callback_netid_18717 nfs4_init_callback_netid 3 18717 NULL
116534 +snd_als4k_gcr_read_addr_18741 snd_als4k_gcr_read_addr 0 18741 NULL
116535 +o2hb_debug_create_18744 o2hb_debug_create 4 18744 NULL
116536 +__erst_read_to_erange_from_nvram_18748 __erst_read_to_erange_from_nvram 0 18748 NULL
116537 +wep_packets_read_18751 wep_packets_read 3 18751 NULL
116538 +read_file_dump_nfcal_18766 read_file_dump_nfcal 3 18766 NULL
116539 +SyS_lsetxattr_18776 SyS_lsetxattr 4 18776 NULL
116540 +alloc_fcdev_18780 alloc_fcdev 1 18780 NULL
116541 +dm_stats_print_18815 dm_stats_print 7 18815 NULL
116542 +sys_modify_ldt_18824 sys_modify_ldt 3 18824 NULL
116543 +mtf_test_write_18844 mtf_test_write 3 18844 NULL
116544 +sctp_setsockopt_events_18862 sctp_setsockopt_events 3 18862 NULL
116545 +ieee80211_if_read_element_ttl_18869 ieee80211_if_read_element_ttl 3 18869 NULL
116546 +xlog_find_verify_log_record_18870 xlog_find_verify_log_record 2 18870 NULL
116547 +ceph_setxattr_18913 ceph_setxattr 4 18913 NULL
116548 +ieee80211_rx_mgmt_disassoc_18927 ieee80211_rx_mgmt_disassoc 3 18927 NULL
116549 +snapshot_write_next_18937 snapshot_write_next 0 18937 NULL
116550 +__nla_reserve_18974 __nla_reserve 3 18974 NULL
116551 +__blockdev_direct_IO_18977 __blockdev_direct_IO 0-6 18977 NULL
116552 +find_dirtiest_idx_leb_19001 find_dirtiest_idx_leb 0 19001 NULL
116553 +layout_in_gaps_19006 layout_in_gaps 2 19006 NULL
116554 +huge_page_size_19008 huge_page_size 0 19008 NULL
116555 +hash_netport6_expire_19013 hash_netport6_expire 4 19013 NULL
116556 +sysfs_create_dir_ns_19033 sysfs_create_dir_ns 0 19033 NULL
116557 +revalidate_19043 revalidate 2 19043 NULL
116558 +afs_vnode_store_data_19048 afs_vnode_store_data 2-3-4-5 19048 NULL
116559 +osc_pinger_recov_seq_write_19056 osc_pinger_recov_seq_write 3 19056 NULL nohasharray
116560 +do_vm86_irq_handling_19056 do_vm86_irq_handling 2 19056 &osc_pinger_recov_seq_write_19056
116561 +create_gpadl_header_19064 create_gpadl_header 2 19064 NULL
116562 +ceph_create_snap_context_19082 ceph_create_snap_context 1 19082 NULL
116563 +sta_last_seq_ctrl_read_19106 sta_last_seq_ctrl_read 3 19106 NULL
116564 +cifs_readv_from_socket_19109 cifs_readv_from_socket 3 19109 NULL
116565 +skb_gro_offset_19123 skb_gro_offset 0 19123 NULL
116566 +snd_als4k_iobase_readl_19136 snd_als4k_iobase_readl 0 19136 NULL
116567 +alloc_irdadev_19140 alloc_irdadev 1 19140 NULL
116568 +sleep_auth_read_19159 sleep_auth_read 3 19159 NULL
116569 +smk_write_access2_19170 smk_write_access2 3 19170 NULL
116570 +iwl_dbgfs_reply_tx_error_read_19205 iwl_dbgfs_reply_tx_error_read 3 19205 NULL
116571 +__copy_to_user_inatomic_19214 __copy_to_user_inatomic 3-0 19214 NULL
116572 +dev_counters_read_19216 dev_counters_read 3 19216 NULL
116573 +wbcir_tx_19219 wbcir_tx 3 19219 NULL
116574 +snd_mask_max_19224 snd_mask_max 0 19224 NULL
116575 +snd_pcm_capture_rewind_19229 snd_pcm_capture_rewind 0-2 19229 NULL
116576 +bio_alloc_mddev_19238 bio_alloc_mddev 2 19238 NULL
116577 +ucma_query_19260 ucma_query 4 19260 NULL
116578 +il_dbgfs_rxon_filter_flags_read_19281 il_dbgfs_rxon_filter_flags_read 3 19281 NULL
116579 +batadv_tt_save_orig_buffer_19288 batadv_tt_save_orig_buffer 4 19288 NULL nohasharray
116580 +cfg80211_rx_unprot_mlme_mgmt_19288 cfg80211_rx_unprot_mlme_mgmt 3 19288 &batadv_tt_save_orig_buffer_19288
116581 +qc_capture_19298 qc_capture 3 19298 NULL
116582 +ocfs2_prepare_inode_for_refcount_19303 ocfs2_prepare_inode_for_refcount 3-4 19303 NULL
116583 +event_tx_stuck_read_19305 event_tx_stuck_read 3 19305 NULL
116584 +debug_read_19322 debug_read 3 19322 NULL
116585 +cfg80211_inform_bss_19332 cfg80211_inform_bss 8 19332 NULL nohasharray
116586 +lbs_host_sleep_write_19332 lbs_host_sleep_write 3 19332 &cfg80211_inform_bss_19332
116587 +closure_sub_19359 closure_sub 2 19359 NULL
116588 +firmware_data_write_19360 firmware_data_write 6-5 19360 NULL
116589 +read_zero_19366 read_zero 3 19366 NULL
116590 +interpret_user_input_19393 interpret_user_input 2 19393 NULL
116591 +sync_fill_pt_info_19397 sync_fill_pt_info 0 19397 NULL
116592 +pep_recvmsg_19402 pep_recvmsg 4 19402 NULL
116593 +hid_hw_raw_request_19408 hid_hw_raw_request 0 19408 NULL
116594 +dvbdmx_write_19423 dvbdmx_write 3 19423 NULL
116595 +SyS_sched_getaffinity_19444 SyS_sched_getaffinity 2 19444 NULL
116596 +xfrm_alg_auth_len_19454 xfrm_alg_auth_len 0 19454 NULL
116597 +gnet_stats_copy_19458 gnet_stats_copy 4 19458 NULL
116598 +gp2ap020a00f_get_thresh_reg_19468 gp2ap020a00f_get_thresh_reg 0 19468 NULL
116599 +sky2_read16_19475 sky2_read16 0 19475 NULL
116600 +kstrtoll_from_user_19500 kstrtoll_from_user 2 19500 NULL
116601 +ext4_add_new_descs_19509 ext4_add_new_descs 3 19509 NULL
116602 +batadv_tvlv_container_register_19520 batadv_tvlv_container_register 5 19520 NULL
116603 +cfc_write_array_to_buffer_19529 cfc_write_array_to_buffer 3 19529 NULL
116604 +nfc_llcp_build_tlv_19536 nfc_llcp_build_tlv 3 19536 NULL
116605 +gfn_to_index_19558 gfn_to_index 0-1-3-2 19558 NULL
116606 +ocfs2_control_message_19564 ocfs2_control_message 3 19564 NULL
116607 +nfsd_read_19568 nfsd_read 5 19568 NULL
116608 +ieee80211_key_alloc_19575 ieee80211_key_alloc 3 19575 NULL
116609 +mnt_want_write_file_19579 mnt_want_write_file 0 19579 NULL
116610 +bm_status_read_19583 bm_status_read 3 19583 NULL
116611 +load_xattr_datum_19594 load_xattr_datum 0 19594 NULL
116612 +__mei_cl_recv_19636 __mei_cl_recv 3 19636 NULL
116613 +LoadBitmap_19658 LoadBitmap 2 19658 NULL
116614 +memblock_virt_alloc_low_nopanic_19714 memblock_virt_alloc_low_nopanic 1 19714 NULL
116615 +ocfs2_control_get_this_node_19721 ocfs2_control_get_this_node 0 19721 NULL
116616 +read_reg_19723 read_reg 0 19723 NULL
116617 +wm8350_block_write_19727 wm8350_block_write 2-3 19727 NULL
116618 +memcpy_toiovecend_19736 memcpy_toiovecend 4-3 19736 NULL
116619 +snd_es1968_get_dma_ptr_19747 snd_es1968_get_dma_ptr 0 19747 NULL
116620 +p9_client_read_19750 p9_client_read 5-0 19750 NULL
116621 +pnpbios_proc_write_19758 pnpbios_proc_write 3 19758 NULL
116622 +ocfs2_readpages_19759 ocfs2_readpages 4 19759 NULL
116623 +jffs2_acl_from_medium_19762 jffs2_acl_from_medium 2 19762 NULL
116624 +irda_setsockopt_19824 irda_setsockopt 5 19824 NULL
116625 +vfs_getxattr_19832 vfs_getxattr 0 19832 NULL
116626 +crypt_alloc_buffer_19846 crypt_alloc_buffer 2 19846 NULL
116627 +cfg80211_mlme_register_mgmt_19852 cfg80211_mlme_register_mgmt 5 19852 NULL
116628 +__nla_put_19857 __nla_put 3 19857 NULL
116629 +mrp_request_join_19882 mrp_request_join 4 19882 NULL
116630 +aes_decrypt_interrupt_read_19910 aes_decrypt_interrupt_read 3 19910 NULL
116631 +ps_upsd_max_apturn_read_19918 ps_upsd_max_apturn_read 3 19918 NULL
116632 +mangle_name_19923 mangle_name 0 19923 NULL
116633 +cgroup_task_count_19930 cgroup_task_count 0 19930 NULL
116634 +guest_read_tsc_19931 guest_read_tsc 0 19931 NULL
116635 +iwl_dbgfs_rx_queue_read_19943 iwl_dbgfs_rx_queue_read 3 19943 NULL
116636 +cfg80211_rx_assoc_resp_19944 cfg80211_rx_assoc_resp 4 19944 NULL
116637 +ll_xattr_cache_list_19954 ll_xattr_cache_list 0 19954 NULL
116638 +get_jack_mode_name_19976 get_jack_mode_name 4 19976 NULL
116639 +attach_hdlc_protocol_19986 attach_hdlc_protocol 3 19986 NULL
116640 +rtw_set_wps_probe_resp_19989 rtw_set_wps_probe_resp 3 19989 NULL nohasharray
116641 +i40e_reserve_msix_vectors_19989 i40e_reserve_msix_vectors 2 19989 &rtw_set_wps_probe_resp_19989
116642 +diva_um_idi_read_20003 diva_um_idi_read 0 20003 NULL
116643 +lov_stripe_md_size_20009 lov_stripe_md_size 0-1 20009 NULL nohasharray
116644 +event_trigger_write_20009 event_trigger_write 3 20009 &lov_stripe_md_size_20009
116645 +tree_mod_log_eb_move_20011 tree_mod_log_eb_move 5 20011 NULL
116646 +SYSC_fgetxattr_20027 SYSC_fgetxattr 4 20027 NULL
116647 +split_scan_timeout_read_20029 split_scan_timeout_read 3 20029 NULL
116648 +iwl_mvm_power_mac_dbgfs_read_20067 iwl_mvm_power_mac_dbgfs_read 0-4 20067 NULL
116649 +target_message_20072 target_message 2 20072 NULL
116650 +rawv6_sendmsg_20080 rawv6_sendmsg 4 20080 NULL
116651 +fuse_conn_limit_read_20084 fuse_conn_limit_read 3 20084 NULL
116652 +aat2870_reg_write_file_20086 aat2870_reg_write_file 3 20086 NULL
116653 +team_options_register_20091 team_options_register 3 20091 NULL
116654 +qla2x00_adjust_sdev_qdepth_up_20097 qla2x00_adjust_sdev_qdepth_up 2 20097 NULL
116655 +root_nfs_copy_20111 root_nfs_copy 3 20111 NULL
116656 +hptiop_adjust_disk_queue_depth_20122 hptiop_adjust_disk_queue_depth 2 20122 NULL
116657 +self_check_vid_hdr_20131 self_check_vid_hdr 0 20131 NULL
116658 +tomoyo_commit_ok_20167 tomoyo_commit_ok 2 20167 NULL
116659 +read_flush_pipefs_20171 read_flush_pipefs 3 20171 NULL
116660 +wep_addr_key_count_read_20174 wep_addr_key_count_read 3 20174 NULL
116661 +crystalhd_map_dio_20181 crystalhd_map_dio 3 20181 NULL
116662 +pvr2_ctrl_value_to_sym_20229 pvr2_ctrl_value_to_sym 5 20229 NULL
116663 +rose_sendmsg_20249 rose_sendmsg 4 20249 NULL
116664 +tm6000_i2c_send_regs_20250 tm6000_i2c_send_regs 5 20250 NULL
116665 +btrfs_header_nritems_20296 btrfs_header_nritems 0 20296 NULL
116666 +r10_sync_page_io_20307 r10_sync_page_io 3 20307 NULL
116667 +dm_get_reserved_bio_based_ios_20315 dm_get_reserved_bio_based_ios 0 20315 NULL
116668 +tx_tx_burst_programmed_read_20320 tx_tx_burst_programmed_read 3 20320 NULL
116669 +vx_send_msg_nolock_20322 vx_send_msg_nolock 0 20322 NULL
116670 +snd_cs4281_BA1_read_20323 snd_cs4281_BA1_read 5 20323 NULL
116671 +gfs2_glock_nq_m_20347 gfs2_glock_nq_m 1 20347 NULL
116672 +handle_arr_calc_size_20355 handle_arr_calc_size 0-1 20355 NULL
116673 +snd_pcm_stop_20376 snd_pcm_stop 0 20376 NULL
116674 +smk_set_cipso_20379 smk_set_cipso 3 20379 NULL
116675 +snd_nm256_readl_20394 snd_nm256_readl 0 20394 NULL
116676 +SyS_get_mempolicy_20399 SyS_get_mempolicy 3 20399 NULL nohasharray
116677 +__kfifo_from_user_20399 __kfifo_from_user 3 20399 &SyS_get_mempolicy_20399
116678 +compat_ipv6_setsockopt_20468 compat_ipv6_setsockopt 5 20468 NULL
116679 +read_buf_20469 read_buf 2 20469 NULL
116680 +bio_trim_20472 bio_trim 2 20472 NULL
116681 +btrfs_get_32_20476 btrfs_get_32 0 20476 NULL
116682 +xfs_iext_realloc_direct_20521 xfs_iext_realloc_direct 2 20521 NULL
116683 +drbd_bm_resize_20522 drbd_bm_resize 2 20522 NULL
116684 +amd_create_gatt_pages_20537 amd_create_gatt_pages 1 20537 NULL
116685 +scsi_report_opcode_20551 scsi_report_opcode 3 20551 NULL
116686 +venus_create_20555 venus_create 4 20555 NULL
116687 +btrfs_super_log_root_20565 btrfs_super_log_root 0 20565 NULL
116688 +crypto_ahash_reqsize_20569 crypto_ahash_reqsize 0 20569 NULL
116689 +kvm_test_age_hva_20593 kvm_test_age_hva 2 20593 NULL
116690 +set_secure_conn_20596 set_secure_conn 4 20596 NULL
116691 +sync_timeline_create_20601 sync_timeline_create 2 20601 NULL
116692 +lirc_write_20604 lirc_write 3 20604 NULL
116693 +qib_qsfp_write_20614 qib_qsfp_write 0-2-4 20614 NULL
116694 +snd_pcm_oss_prepare_20641 snd_pcm_oss_prepare 0 20641 NULL
116695 +get_extent_skip_holes_20642 get_extent_skip_holes 2 20642 NULL
116696 +kfifo_copy_to_user_20646 kfifo_copy_to_user 3-4 20646 NULL
116697 +cpulist_scnprintf_20648 cpulist_scnprintf 2-0 20648 NULL
116698 +oz_add_farewell_20652 oz_add_farewell 5 20652 NULL
116699 +oz_cdev_read_20659 oz_cdev_read 3 20659 NULL
116700 +snd_hdsp_playback_copy_20676 snd_hdsp_playback_copy 5 20676 NULL nohasharray
116701 +btrfs_qgroup_reserve_20676 btrfs_qgroup_reserve 0 20676 &snd_hdsp_playback_copy_20676
116702 +dvb_dmxdev_buffer_read_20682 dvb_dmxdev_buffer_read 0-4 20682 NULL
116703 +cpumask_size_20683 cpumask_size 0 20683 NULL
116704 +btrfs_node_blockptr_20685 btrfs_node_blockptr 0 20685 NULL
116705 +read_file_tgt_int_stats_20697 read_file_tgt_int_stats 3 20697 NULL
116706 +__maestro_read_20700 __maestro_read 0 20700 NULL
116707 +cipso_v4_gentag_rng_20703 cipso_v4_gentag_rng 0 20703 NULL
116708 +pcpu_page_first_chunk_20712 pcpu_page_first_chunk 1 20712 NULL
116709 +ocfs2_read_xattr_bucket_20722 ocfs2_read_xattr_bucket 0 20722 NULL
116710 +security_context_to_sid_force_20724 security_context_to_sid_force 2 20724 NULL
116711 +fb_prepare_logo_20743 fb_prepare_logo 0 20743 NULL
116712 +vol_cdev_direct_write_20751 vol_cdev_direct_write 3 20751 NULL
116713 +ocfs2_align_bytes_to_clusters_20754 ocfs2_align_bytes_to_clusters 2 20754 NULL
116714 +brcmf_p2p_escan_20763 brcmf_p2p_escan 2 20763 NULL nohasharray
116715 +mnt_clone_write_20763 mnt_clone_write 0 20763 &brcmf_p2p_escan_20763
116716 +ubi_io_read_20767 ubi_io_read 0 20767 NULL
116717 +fb_alloc_cmap_gfp_20792 fb_alloc_cmap_gfp 2 20792 NULL
116718 +iwl_dbgfs_rxon_flags_read_20795 iwl_dbgfs_rxon_flags_read 3 20795 NULL
116719 +lowpan_write_20800 lowpan_write 3 20800 NULL
116720 +strndup_user_20819 strndup_user 2 20819 NULL
116721 +tipc_msg_build_20825 tipc_msg_build 3 20825 NULL
116722 +wl1271_format_buffer_20834 wl1271_format_buffer 2 20834 NULL
116723 +uvc_alloc_entity_20836 uvc_alloc_entity 4-3 20836 NULL
116724 +p9_tag_alloc_20845 p9_tag_alloc 3 20845 NULL
116725 +nvme_trans_supported_vpd_pages_20847 nvme_trans_supported_vpd_pages 4 20847 NULL
116726 +get_name_20855 get_name 4 20855 NULL
116727 +iwl_dbgfs_pm_params_read_20866 iwl_dbgfs_pm_params_read 3 20866 NULL
116728 +snd_pcm_capture_avail_20867 snd_pcm_capture_avail 0 20867 NULL
116729 +srq_free_res_20868 srq_free_res 5 20868 NULL
116730 +cfs_cpt_table_create_20884 cfs_cpt_table_create 1 20884 NULL
116731 +rb_simple_write_20890 rb_simple_write 3 20890 NULL
116732 +sisusb_send_packet_20891 sisusb_send_packet 2 20891 NULL
116733 +key_icverrors_read_20895 key_icverrors_read 3 20895 NULL
116734 +vfio_msi_enable_20906 vfio_msi_enable 2 20906 NULL
116735 +lbs_rdbbp_write_20918 lbs_rdbbp_write 3 20918 NULL
116736 +htable_bits_20933 htable_bits 0 20933 NULL
116737 +altera_set_ir_post_20948 altera_set_ir_post 2 20948 NULL
116738 +rx_rx_phy_hdr_read_20950 rx_rx_phy_hdr_read 3 20950 NULL
116739 +rsxx_cram_read_20957 rsxx_cram_read 3 20957 NULL
116740 +nfs_map_name_to_uid_20962 nfs_map_name_to_uid 3 20962 NULL
116741 +snd_rme9652_playback_copy_20970 snd_rme9652_playback_copy 5 20970 NULL
116742 +alg_setsockopt_20985 alg_setsockopt 5 20985 NULL
116743 +qib_verbs_send_20999 qib_verbs_send 5-3 20999 NULL
116744 +btrfs_dirty_pages_21019 btrfs_dirty_pages 0 21019 NULL
116745 +btrfs_inode_ref_name_len_21024 btrfs_inode_ref_name_len 0 21024 NULL
116746 +rx_defrag_tkip_called_read_21031 rx_defrag_tkip_called_read 3 21031 NULL
116747 +srp_change_queue_depth_21038 srp_change_queue_depth 2 21038 NULL
116748 +fsl_edma_prep_dma_cyclic_21042 fsl_edma_prep_dma_cyclic 4-3 21042 NULL
116749 +lbs_threshold_read_21046 lbs_threshold_read 5 21046 NULL
116750 +reiserfs_direct_IO_21051 reiserfs_direct_IO 4 21051 NULL
116751 +proc_fault_inject_write_21058 proc_fault_inject_write 3 21058 NULL
116752 +qdisc_get_default_21072 qdisc_get_default 2 21072 NULL
116753 +event_calibration_read_21083 event_calibration_read 3 21083 NULL
116754 +bl_add_page_to_bio_21094 bl_add_page_to_bio 2 21094 NULL nohasharray
116755 +multipath_status_21094 multipath_status 5 21094 &bl_add_page_to_bio_21094
116756 +rate_control_pid_events_read_21099 rate_control_pid_events_read 3 21099 NULL
116757 +ath6kl_send_go_probe_resp_21113 ath6kl_send_go_probe_resp 3 21113 NULL
116758 +_efx_mcdi_rpc_async_21119 _efx_mcdi_rpc_async 4-5 21119 NULL
116759 +i2400m_rx_trace_21127 i2400m_rx_trace 3 21127 NULL
116760 +mei_dbgfs_read_active_21172 mei_dbgfs_read_active 3 21172 NULL
116761 +cx18_v4l2_read_21196 cx18_v4l2_read 3 21196 NULL
116762 +__generic_file_aio_write_21201 __generic_file_aio_write 0 21201 NULL
116763 +ipc_rcu_alloc_21208 ipc_rcu_alloc 1 21208 NULL
116764 +scsi_execute_req_flags_21215 scsi_execute_req_flags 5 21215 NULL
116765 +get_numpages_21227 get_numpages 0-2-1 21227 NULL
116766 +input_ff_create_21240 input_ff_create 2 21240 NULL
116767 +cfg80211_notify_new_peer_candidate_21242 cfg80211_notify_new_peer_candidate 4 21242 NULL
116768 +fru_length_21257 fru_length 0 21257 NULL
116769 +rtw_set_wps_beacon_21262 rtw_set_wps_beacon 3 21262 NULL
116770 +drm_universal_plane_init_21296 drm_universal_plane_init 6 21296 NULL
116771 +do_msg_fill_21307 do_msg_fill 3 21307 NULL
116772 +add_res_range_21310 add_res_range 4 21310 NULL
116773 +get_zeroed_page_21322 get_zeroed_page 0 21322 NULL
116774 +ftrace_profile_read_21327 ftrace_profile_read 3 21327 NULL
116775 +read_file_bool_bmps_21344 read_file_bool_bmps 3 21344 NULL
116776 +gfs2_ea_get_copy_21353 gfs2_ea_get_copy 0 21353 NULL
116777 +alloc_orinocodev_21371 alloc_orinocodev 1 21371 NULL
116778 +SYSC_rt_sigpending_21379 SYSC_rt_sigpending 2 21379 NULL
116779 +video_ioctl2_21380 video_ioctl2 2 21380 NULL
116780 +insert_ptr_21386 insert_ptr 6 21386 NULL
116781 +diva_get_driver_dbg_mask_21399 diva_get_driver_dbg_mask 0 21399 NULL
116782 +__clone_and_map_simple_bio_21404 __clone_and_map_simple_bio 4 21404 NULL
116783 +snd_m3_inw_21406 snd_m3_inw 0 21406 NULL
116784 +usnic_ib_dump_vf_hdr_21423 usnic_ib_dump_vf_hdr 3 21423 NULL
116785 +snapshot_read_next_21426 snapshot_read_next 0 21426 NULL
116786 +tcp_bound_to_half_wnd_21429 tcp_bound_to_half_wnd 0-2 21429 NULL
116787 +tracing_saved_cmdlines_read_21434 tracing_saved_cmdlines_read 3 21434 NULL
116788 +aggr_size_tx_agg_vs_rate_read_21438 aggr_size_tx_agg_vs_rate_read 3 21438 NULL
116789 +__ertm_hdr_size_21450 __ertm_hdr_size 0 21450 NULL
116790 +mei_nfc_send_21477 mei_nfc_send 3 21477 NULL
116791 +read_file_xmit_21487 read_file_xmit 3 21487 NULL
116792 +mmc_alloc_sg_21504 mmc_alloc_sg 1 21504 NULL
116793 +btrfs_file_aio_write_21520 btrfs_file_aio_write 4 21520 NULL
116794 +il_dbgfs_stations_read_21532 il_dbgfs_stations_read 3 21532 NULL
116795 +cipso_v4_map_cat_enum_hton_21540 cipso_v4_map_cat_enum_hton 0 21540 NULL
116796 +rxrpc_send_data_21553 rxrpc_send_data 5 21553 NULL
116797 +rx_rx_beacon_early_term_read_21559 rx_rx_beacon_early_term_read 3 21559 NULL
116798 +xfs_buf_read_uncached_21585 xfs_buf_read_uncached 3 21585 NULL
116799 +snd_es18xx_mixer_read_21586 snd_es18xx_mixer_read 0 21586 NULL
116800 +ocfs2_acl_from_xattr_21604 ocfs2_acl_from_xattr 2 21604 NULL
116801 +filemap_get_page_21606 filemap_get_page 2 21606 NULL
116802 +__jfs_getxattr_21631 __jfs_getxattr 0 21631 NULL
116803 +atalk_sendmsg_21677 atalk_sendmsg 4 21677 NULL
116804 +ocfs2_xattr_get_nolock_21678 ocfs2_xattr_get_nolock 0 21678 NULL
116805 +regmap_register_patch_21681 regmap_register_patch 3 21681 NULL
116806 +rtllib_alloc_txb_21687 rtllib_alloc_txb 1 21687 NULL
116807 +evdev_ioctl_handler_21705 evdev_ioctl_handler 2 21705 NULL
116808 +update_time_21719 update_time 0 21719 NULL
116809 +unix_skb_len_21722 unix_skb_len 0 21722 NULL
116810 +lprocfs_wr_import_21728 lprocfs_wr_import 3 21728 NULL
116811 +mthca_alloc_init_21754 mthca_alloc_init 2 21754 NULL
116812 +usbat_flash_read_data_21762 usbat_flash_read_data 4 21762 NULL
116813 +gen_pool_add_21776 gen_pool_add 3 21776 NULL
116814 +xfs_da_grow_inode_int_21785 xfs_da_grow_inode_int 3 21785 NULL
116815 +dvb_generic_ioctl_21810 dvb_generic_ioctl 2 21810 NULL
116816 +_iwl_dbgfs_sta_drain_write_21837 _iwl_dbgfs_sta_drain_write 3 21837 NULL
116817 +oom_adj_read_21847 oom_adj_read 3 21847 NULL
116818 +lpfc_idiag_extacc_avail_get_21865 lpfc_idiag_extacc_avail_get 0-3 21865 NULL
116819 +brcms_debugfs_hardware_read_21867 brcms_debugfs_hardware_read 3 21867 NULL
116820 +msix_capability_init_21870 msix_capability_init 0 21870 NULL
116821 +sisusbcon_bmove_21873 sisusbcon_bmove 6-5-7 21873 NULL
116822 +ldlm_lock_create_21888 ldlm_lock_create 7 21888 NULL
116823 +dbAllocCtl_21911 dbAllocCtl 0 21911 NULL
116824 +qsfp_1_read_21915 qsfp_1_read 3 21915 NULL
116825 +twl_i2c_write_u16_21953 twl_i2c_write_u16 3 21953 NULL
116826 +__build_xattrs_21979 __build_xattrs 0 21979 NULL
116827 +SYSC_prctl_21980 SYSC_prctl 4 21980 NULL
116828 +compat_rw_copy_check_uvector_22001 compat_rw_copy_check_uvector 3-0 22001 NULL nohasharray
116829 +rxpipe_descr_host_int_trig_rx_data_read_22001 rxpipe_descr_host_int_trig_rx_data_read 3 22001 &compat_rw_copy_check_uvector_22001
116830 +regcache_sync_block_raw_flush_22021 regcache_sync_block_raw_flush 3-4 22021 NULL
116831 +btrfs_get_16_22023 btrfs_get_16 0 22023 NULL
116832 +_sp2d_min_pg_22032 _sp2d_min_pg 0 22032 NULL
116833 +zd_usb_read_fw_22049 zd_usb_read_fw 4 22049 NULL
116834 +ieee80211_if_fmt_dropped_frames_ttl_22054 ieee80211_if_fmt_dropped_frames_ttl 3 22054 NULL
116835 +btrfs_reloc_clone_csums_22077 btrfs_reloc_clone_csums 2-3 22077 NULL
116836 +mem_rw_22085 mem_rw 3 22085 NULL
116837 +kstrtos32_from_user_22087 kstrtos32_from_user 2 22087 NULL
116838 +snd_pcm_xrun_22088 snd_pcm_xrun 0 22088 NULL
116839 +rt2x00debug_read_crypto_stats_22109 rt2x00debug_read_crypto_stats 3 22109 NULL
116840 +snd_hda_codec_read_22130 snd_hda_codec_read 0 22130 NULL
116841 +SyS_sched_setaffinity_22148 SyS_sched_setaffinity 2 22148 NULL
116842 +do_tcp_sendpages_22155 do_tcp_sendpages 4 22155 NULL
116843 +pci_request_region_22164 pci_request_region 0 22164 NULL
116844 +__kfifo_alloc_22173 __kfifo_alloc 3 22173 NULL
116845 +rfcomm_sock_recvmsg_22227 rfcomm_sock_recvmsg 4 22227 NULL
116846 +mem_write_22232 mem_write 3 22232 NULL
116847 +p9_virtio_zc_request_22240 p9_virtio_zc_request 6-5 22240 NULL
116848 +prepare_to_wait_event_22247 prepare_to_wait_event 0 22247 NULL
116849 +compat_process_vm_rw_22254 compat_process_vm_rw 3-5 22254 NULL
116850 +ping_common_sendmsg_22261 ping_common_sendmsg 5 22261 NULL
116851 +add_res_tree_22263 add_res_tree 7 22263 NULL
116852 +queue_max_sectors_22280 queue_max_sectors 0 22280 NULL
116853 +pci_vpd_srdt_size_22300 pci_vpd_srdt_size 0 22300 NULL nohasharray
116854 +__tun_chr_ioctl_22300 __tun_chr_ioctl 4 22300 &pci_vpd_srdt_size_22300
116855 +mesh_table_alloc_22305 mesh_table_alloc 1 22305 NULL
116856 +lov_setstripe_22307 lov_setstripe 2 22307 NULL
116857 +udpv6_sendmsg_22316 udpv6_sendmsg 4 22316 NULL
116858 +atomic_read_22342 atomic_read 0 22342 NULL
116859 +ll_lazystatfs_seq_write_22353 ll_lazystatfs_seq_write 3 22353 NULL
116860 +snd_pcm_alsa_frames_22363 snd_pcm_alsa_frames 2 22363 NULL
116861 +evdev_ioctl_22371 evdev_ioctl 2 22371 NULL
116862 +alloc_large_system_hash_22391 alloc_large_system_hash 2 22391 NULL
116863 +zoran_write_22404 zoran_write 3 22404 NULL
116864 +queue_reply_22416 queue_reply 3 22416 NULL
116865 +__set_enter_print_fmt_22431 __set_enter_print_fmt 0 22431 NULL
116866 +queue_max_segments_22441 queue_max_segments 0 22441 NULL
116867 +handle_received_packet_22457 handle_received_packet 3 22457 NULL
116868 +ecryptfs_write_22488 ecryptfs_write 4-3 22488 NULL
116869 +qib_user_sdma_alloc_header_22490 qib_user_sdma_alloc_header 2 22490 NULL
116870 +cache_write_procfs_22491 cache_write_procfs 3 22491 NULL
116871 +trim_no_bitmap_22524 trim_no_bitmap 4-3 22524 NULL
116872 +ntb_setup_bwd_msix_22549 ntb_setup_bwd_msix 2-0 22549 NULL
116873 +ocfs2_read_extent_block_22550 ocfs2_read_extent_block 0 22550 NULL
116874 +agp_alloc_page_array_22554 agp_alloc_page_array 1 22554 NULL
116875 +dbFindCtl_22587 dbFindCtl 0 22587 NULL
116876 +snapshot_read_22601 snapshot_read 3 22601 NULL
116877 +sctp_setsockopt_connectx_old_22631 sctp_setsockopt_connectx_old 3 22631 NULL
116878 +ide_core_cp_entry_22636 ide_core_cp_entry 3 22636 NULL
116879 +wl1271_rx_filter_get_fields_size_22638 wl1271_rx_filter_get_fields_size 0 22638 NULL
116880 +pwr_wake_on_timer_exp_read_22640 pwr_wake_on_timer_exp_read 3 22640 NULL
116881 +iwl_dbgfs_calib_disabled_read_22649 iwl_dbgfs_calib_disabled_read 3 22649 NULL
116882 +ext4_ext_direct_IO_22679 ext4_ext_direct_IO 4 22679 NULL
116883 +fill_gap_22681 fill_gap 0 22681 NULL nohasharray
116884 +l2tp_ip_recvmsg_22681 l2tp_ip_recvmsg 4 22681 &fill_gap_22681
116885 +bch_dump_read_22685 bch_dump_read 3 22685 NULL
116886 +reg_umr_22686 reg_umr 5 22686 NULL
116887 +SYSC_vmsplice_22697 SYSC_vmsplice 3 22697 NULL
116888 +alloc_libipw_22708 alloc_libipw 1 22708 NULL
116889 +cx18_copy_buf_to_user_22735 cx18_copy_buf_to_user 4-0 22735 NULL
116890 +ceph_decode_32_22738 ceph_decode_32 0 22738 NULL nohasharray
116891 +__mei_cl_send_22738 __mei_cl_send 3 22738 &ceph_decode_32_22738
116892 +__writeback_single_inode_22739 __writeback_single_inode 0 22739 NULL
116893 +iio_debugfs_write_reg_22742 iio_debugfs_write_reg 3 22742 NULL
116894 +qlcnic_sriov_init_22762 qlcnic_sriov_init 2 22762 NULL
116895 +print_frame_22769 print_frame 0 22769 NULL
116896 +ftrace_arch_read_dyn_info_22773 ftrace_arch_read_dyn_info 0 22773 NULL
116897 +__break_lease_22777 __break_lease 0 22777 NULL
116898 +vnic_dev_get_res_count_22791 vnic_dev_get_res_count 0 22791 NULL
116899 +pla_ocp_write_22802 pla_ocp_write 4 22802 NULL
116900 +__generic_copy_to_user_intel_22806 __generic_copy_to_user_intel 0-3 22806 NULL
116901 +create_attr_set_22861 create_attr_set 1 22861 NULL
116902 +hash_ip6_expire_22867 hash_ip6_expire 4 22867 NULL
116903 +vmw_execbuf_process_22885 vmw_execbuf_process 5 22885 NULL
116904 +usblp_new_writeurb_22894 usblp_new_writeurb 2 22894 NULL
116905 +mdc800_device_read_22896 mdc800_device_read 3 22896 NULL
116906 +ion_handle_test_kernel_22900 ion_handle_test_kernel 4-3 22900 NULL nohasharray
116907 +policy_emit_config_values_22900 policy_emit_config_values 3 22900 &ion_handle_test_kernel_22900
116908 +__set_xattr_22923 __set_xattr 0 22923 NULL
116909 +xstateregs_set_22932 xstateregs_set 4 22932 NULL
116910 +pcpu_mem_zalloc_22948 pcpu_mem_zalloc 1 22948 NULL
116911 +alloc_sglist_22960 alloc_sglist 2-3 22960 NULL
116912 +caif_seqpkt_sendmsg_22961 caif_seqpkt_sendmsg 4 22961 NULL
116913 +vme_get_size_22964 vme_get_size 0 22964 NULL
116914 +tx_frag_key_not_found_read_22971 tx_frag_key_not_found_read 3 22971 NULL
116915 +cached_dev_cache_miss_22979 cached_dev_cache_miss 4 22979 NULL
116916 +usb_get_langid_22983 usb_get_langid 0 22983 NULL
116917 +remote_settings_file_write_22987 remote_settings_file_write 3 22987 NULL
116918 +viafb_dvp0_proc_write_23023 viafb_dvp0_proc_write 3 23023 NULL
116919 +cifs_local_to_utf16_bytes_23025 cifs_local_to_utf16_bytes 0 23025 NULL
116920 +st_status_23032 st_status 5 23032 NULL
116921 +nv50_disp_chan_create__23056 nv50_disp_chan_create_ 5 23056 NULL
116922 +comedi_buf_write_n_available_23057 comedi_buf_write_n_available 0 23057 NULL
116923 +security_inode_killpriv_23060 security_inode_killpriv 0 23060 NULL
116924 +reiserfs_add_entry_23062 reiserfs_add_entry 4 23062 NULL nohasharray
116925 +unix_seqpacket_recvmsg_23062 unix_seqpacket_recvmsg 4 23062 &reiserfs_add_entry_23062
116926 +mei_cl_send_23068 mei_cl_send 3 23068 NULL
116927 +raw_sendmsg_23078 raw_sendmsg 4 23078 NULL
116928 +get_user_hdr_len_23079 get_user_hdr_len 0 23079 NULL
116929 +isr_tx_procs_read_23084 isr_tx_procs_read 3 23084 NULL
116930 +rt2x00debug_write_eeprom_23091 rt2x00debug_write_eeprom 3 23091 NULL
116931 +ntfs_ucstonls_23097 ntfs_ucstonls 3-5 23097 NULL
116932 +pipe_iov_copy_from_user_23102 pipe_iov_copy_from_user 3 23102 NULL
116933 +dgram_recvmsg_23104 dgram_recvmsg 4 23104 NULL
116934 +mwl8k_cmd_set_beacon_23110 mwl8k_cmd_set_beacon 4 23110 NULL
116935 +bset_tree_bytes_23111 bset_tree_bytes 0 23111 NULL nohasharray
116936 +nl80211_send_rx_auth_23111 nl80211_send_rx_auth 4 23111 &bset_tree_bytes_23111
116937 +__clear_user_23118 __clear_user 0-2 23118 NULL
116938 +drm_mode_create_tv_properties_23122 drm_mode_create_tv_properties 2 23122 NULL
116939 +ata_scsi_change_queue_depth_23126 ata_scsi_change_queue_depth 2 23126 NULL
116940 +read_file_ani_23161 read_file_ani 3 23161 NULL
116941 +usblp_write_23178 usblp_write 3 23178 NULL
116942 +gss_pipe_downcall_23182 gss_pipe_downcall 3 23182 NULL
116943 +mpi_alloc_limb_space_23190 mpi_alloc_limb_space 1 23190 NULL
116944 +nft_hash_tbl_alloc_23224 nft_hash_tbl_alloc 1 23224 NULL
116945 +tty_buffer_request_room_23228 tty_buffer_request_room 2-0 23228 NULL
116946 +xlog_get_bp_23229 xlog_get_bp 2 23229 NULL
116947 +ft1000_read_dpram_mag_32_23232 ft1000_read_dpram_mag_32 0 23232 NULL
116948 +rxrpc_client_sendmsg_23236 rxrpc_client_sendmsg 5 23236 NULL
116949 +__gfn_to_rmap_23240 __gfn_to_rmap 1-2 23240 NULL
116950 +nv50_ram_create__23241 nv50_ram_create_ 4 23241 NULL
116951 +sctp_recvmsg_23265 sctp_recvmsg 4 23265 NULL
116952 +uwb_dev_addr_print_23282 uwb_dev_addr_print 2 23282 NULL
116953 +diva_get_trace_filter_23286 diva_get_trace_filter 0 23286 NULL
116954 +i2cdev_write_23310 i2cdev_write 3 23310 NULL
116955 +__aa_kvmalloc_23320 __aa_kvmalloc 1 23320 NULL
116956 +page_readlink_23346 page_readlink 3 23346 NULL
116957 +kmem_zalloc_large_23351 kmem_zalloc_large 1 23351 NULL
116958 +get_dst_timing_23358 get_dst_timing 0 23358 NULL nohasharray
116959 +write_inode_23358 write_inode 0 23358 &get_dst_timing_23358
116960 +fd_setup_write_same_buf_23369 fd_setup_write_same_buf 3 23369 NULL
116961 +iscsi_change_queue_depth_23416 iscsi_change_queue_depth 2 23416 NULL
116962 +vga_mm_r_23419 vga_mm_r 0 23419 NULL
116963 +ocfs2_zero_tail_23447 ocfs2_zero_tail 3 23447 NULL
116964 +hidraw_send_report_23449 hidraw_send_report 3 23449 NULL
116965 +__ata_change_queue_depth_23484 __ata_change_queue_depth 3 23484 NULL
116966 +linear_conf_23485 linear_conf 2 23485 NULL nohasharray
116967 +sync_mapping_buffers_23485 sync_mapping_buffers 0 23485 &linear_conf_23485
116968 +event_filter_read_23494 event_filter_read 3 23494 NULL
116969 +lustre_acl_xattr_merge2ext_23502 lustre_acl_xattr_merge2ext 2 23502 NULL
116970 +devm_iio_device_alloc_23511 devm_iio_device_alloc 2 23511 NULL
116971 +__proc_cpt_table_23516 __proc_cpt_table 5 23516 NULL
116972 +hash_ipmark6_expire_23518 hash_ipmark6_expire 4 23518 NULL
116973 +ima_show_measurements_count_23536 ima_show_measurements_count 3 23536 NULL
116974 +tcp_current_mss_23552 tcp_current_mss 0 23552 NULL
116975 +dbg_leb_change_23555 dbg_leb_change 0 23555 NULL
116976 +btrfs_super_bytenr_23561 btrfs_super_bytenr 0 23561 NULL
116977 +venus_symlink_23570 venus_symlink 6-4 23570 NULL
116978 +iwl_dbgfs_interrupt_read_23574 iwl_dbgfs_interrupt_read 3 23574 NULL
116979 +xfpregs_get_23586 xfpregs_get 4 23586 NULL
116980 +snd_interval_min_23590 snd_interval_min 0 23590 NULL
116981 +islpci_mgt_transaction_23610 islpci_mgt_transaction 5 23610 NULL
116982 +__i2400mu_send_barker_23652 __i2400mu_send_barker 3 23652 NULL
116983 +sInW_23663 sInW 0 23663 NULL
116984 +SyS_connect_23669 SyS_connect 3 23669 NULL
116985 +cx18_read_23699 cx18_read 3 23699 NULL
116986 +at_get_23708 at_get 0 23708 NULL
116987 +rx_rx_dropped_frame_read_23748 rx_rx_dropped_frame_read 3 23748 NULL
116988 +__kfifo_max_r_23768 __kfifo_max_r 0-2-1 23768 NULL
116989 +__build_packet_message_23778 __build_packet_message 4-10 23778 NULL
116990 +security_inode_getxattr_23781 security_inode_getxattr 0 23781 NULL
116991 +cfg80211_inform_bss_width_frame_23782 cfg80211_inform_bss_width_frame 5 23782 NULL
116992 +mpt_free_res_23793 mpt_free_res 5 23793 NULL
116993 +map_write_23795 map_write 3 23795 NULL
116994 +rx_path_reset_read_23801 rx_path_reset_read 3 23801 NULL
116995 +__earlyonly_bootmem_alloc_23824 __earlyonly_bootmem_alloc 2 23824 NULL
116996 +lustre_msg_buflen_23827 lustre_msg_buflen 0 23827 NULL
116997 +ceph_copy_page_vector_to_user_23829 ceph_copy_page_vector_to_user 0-3-4 23829 NULL
116998 +pgdat_end_pfn_23842 pgdat_end_pfn 0 23842 NULL
116999 +iwl_dbgfs_nvm_read_23845 iwl_dbgfs_nvm_read 3 23845 NULL
117000 +p54_init_common_23850 p54_init_common 1 23850 NULL
117001 +bin_to_hex_dup_23853 bin_to_hex_dup 2 23853 NULL
117002 +ocfs2_xattr_get_clusters_23857 ocfs2_xattr_get_clusters 0 23857 NULL
117003 +ieee80211_if_read_dot11MeshMaxPeerLinks_23878 ieee80211_if_read_dot11MeshMaxPeerLinks 3 23878 NULL
117004 +nouveau_clock_create__23881 nouveau_clock_create_ 5 23881 NULL nohasharray
117005 +writeback_single_inode_23881 writeback_single_inode 0 23881 &nouveau_clock_create__23881
117006 +tipc_snprintf_23893 tipc_snprintf 2-0 23893 NULL
117007 +add_new_gdb_meta_bg_23911 add_new_gdb_meta_bg 3 23911 NULL nohasharray
117008 +ieee80211_if_read_hw_queues_23911 ieee80211_if_read_hw_queues 3 23911 &add_new_gdb_meta_bg_23911
117009 +f2fs_getxattr_23917 f2fs_getxattr 0 23917 NULL
117010 +ipath_reg_phys_mr_23918 ipath_reg_phys_mr 3 23918 NULL nohasharray
117011 +mpihelp_mul_karatsuba_case_23918 mpihelp_mul_karatsuba_case 5-3 23918 &ipath_reg_phys_mr_23918
117012 +kvm_read_guest_23928 kvm_read_guest 4-2 23928 NULL
117013 +uvc_endpoint_max_bpi_23944 uvc_endpoint_max_bpi 0 23944 NULL
117014 +cifs_setxattr_23957 cifs_setxattr 4 23957 NULL
117015 +size_roundup_power2_23958 size_roundup_power2 0-1 23958 NULL
117016 +sddr55_write_data_23983 sddr55_write_data 4 23983 NULL
117017 +zd_usb_iowrite16v_async_23984 zd_usb_iowrite16v_async 3 23984 NULL
117018 +cxgb_alloc_mem_24007 cxgb_alloc_mem 1 24007 NULL
117019 +give_pages_24021 give_pages 3 24021 NULL
117020 +adis16400_show_serial_number_24037 adis16400_show_serial_number 3 24037 NULL
117021 +hmac_setkey_24043 hmac_setkey 3 24043 NULL
117022 +afs_cell_alloc_24052 afs_cell_alloc 2 24052 NULL
117023 +iwl_dbgfs_low_latency_read_24062 iwl_dbgfs_low_latency_read 3 24062 NULL
117024 +vb2_fop_read_24080 vb2_fop_read 3 24080 NULL
117025 +C_SYSC_process_vm_writev_24102 C_SYSC_process_vm_writev 3-5 24102 NULL
117026 +pipeline_post_proc_swi_read_24108 pipeline_post_proc_swi_read 3 24108 NULL
117027 +request_key_auth_read_24109 request_key_auth_read 3 24109 NULL
117028 +lov_brw_24122 lov_brw 4 24122 NULL
117029 +mpu401_read_24126 mpu401_read 3 24126 NULL
117030 +_picolcd_flash_write_24134 _picolcd_flash_write 4 24134 NULL
117031 +irnet_ctrl_write_24139 irnet_ctrl_write 3 24139 NULL
117032 +SyS_sethostname_24150 SyS_sethostname 2 24150 NULL
117033 +trim_bitmaps_24158 trim_bitmaps 3 24158 NULL
117034 +adu_read_24177 adu_read 3 24177 NULL
117035 +safe_prepare_write_buffer_24187 safe_prepare_write_buffer 3 24187 NULL
117036 +irq_remapping_setup_msi_irqs_24194 irq_remapping_setup_msi_irqs 2 24194 NULL
117037 +ieee80211_if_read_dot11MeshHWMPpreqMinInterval_24208 ieee80211_if_read_dot11MeshHWMPpreqMinInterval 3 24208 NULL
117038 +efx_vf_size_24213 efx_vf_size 0 24213 NULL
117039 +tcpprobe_sprint_24222 tcpprobe_sprint 0-2 24222 NULL
117040 +mei_amthif_read_24224 mei_amthif_read 4 24224 NULL nohasharray
117041 +pcpu_embed_first_chunk_24224 pcpu_embed_first_chunk 3-2-1 24224 &mei_amthif_read_24224
117042 +pci_num_vf_24235 pci_num_vf 0 24235 NULL
117043 +sel_read_bool_24236 sel_read_bool 3 24236 NULL
117044 +em28xx_alloc_urbs_24260 em28xx_alloc_urbs 4-6 24260 NULL
117045 +calculate_sizes_24273 calculate_sizes 2 24273 NULL
117046 +thin_status_24278 thin_status 5 24278 NULL
117047 +msg_size_24288 msg_size 0 24288 NULL
117048 +btmrvl_pscmd_read_24308 btmrvl_pscmd_read 3 24308 NULL
117049 +reserve_metadata_bytes_24313 reserve_metadata_bytes 0 24313 NULL
117050 +ath6kl_add_bss_if_needed_24317 ath6kl_add_bss_if_needed 6 24317 NULL
117051 +si476x_radio_read_acf_blob_24336 si476x_radio_read_acf_blob 3 24336 NULL
117052 +C_SYSC_pwritev_24345 C_SYSC_pwritev 3 24345 NULL
117053 +prepare_pages_24349 prepare_pages 0 24349 NULL
117054 +kzalloc_node_24352 kzalloc_node 1 24352 NULL
117055 +qla2x00_handle_queue_full_24365 qla2x00_handle_queue_full 2 24365 NULL
117056 +cfi_read_pri_24366 cfi_read_pri 3 24366 NULL
117057 +btrfs_item_size_nr_24367 btrfs_item_size_nr 0 24367 NULL
117058 +igetword_24373 igetword 0 24373 NULL nohasharray
117059 +break_deleg_24373 break_deleg 0 24373 &igetword_24373
117060 +max_io_len_24384 max_io_len 0-1 24384 NULL
117061 +mpt_alloc_res_24387 mpt_alloc_res 5 24387 NULL
117062 +osc_cur_grant_bytes_seq_write_24396 osc_cur_grant_bytes_seq_write 3 24396 NULL
117063 +getxattr_24398 getxattr 4 24398 NULL nohasharray
117064 +pvr2_v4l2_ioctl_24398 pvr2_v4l2_ioctl 2 24398 &getxattr_24398
117065 +populate_msi_sysfs_24399 populate_msi_sysfs 0 24399 NULL
117066 +blk_update_bidi_request_24415 blk_update_bidi_request 3-4 24415 NULL
117067 +nvme_trans_log_supp_pages_24418 nvme_trans_log_supp_pages 3 24418 NULL
117068 +b43_debugfs_read_24425 b43_debugfs_read 3 24425 NULL
117069 +xenbus_file_read_24427 xenbus_file_read 3 24427 NULL
117070 +ieee80211_rx_mgmt_beacon_24430 ieee80211_rx_mgmt_beacon 3 24430 NULL
117071 +copy_and_ioctl_24434 copy_and_ioctl 4 24434 NULL
117072 +ixgbe_alloc_q_vector_24439 ixgbe_alloc_q_vector 4-6 24439 NULL
117073 +rtw_set_wps_assoc_resp_24440 rtw_set_wps_assoc_resp 3 24440 NULL nohasharray
117074 +smk_user_access_24440 smk_user_access 3 24440 &rtw_set_wps_assoc_resp_24440
117075 +evdev_do_ioctl_24459 evdev_do_ioctl 2 24459 NULL
117076 +lbs_highsnr_write_24460 lbs_highsnr_write 3 24460 NULL
117077 +skb_copy_and_csum_datagram_iovec_24466 skb_copy_and_csum_datagram_iovec 2 24466 NULL
117078 +dut_mode_read_24489 dut_mode_read 3 24489 NULL
117079 +read_file_spec_scan_ctl_24491 read_file_spec_scan_ctl 3 24491 NULL
117080 +pd_video_read_24510 pd_video_read 3 24510 NULL
117081 +request_key_with_auxdata_24515 request_key_with_auxdata 4 24515 NULL
117082 +xfs_buf_get_map_24522 xfs_buf_get_map 3 24522 NULL
117083 +do_mpage_readpage_24536 do_mpage_readpage 3 24536 NULL
117084 +write_cache_pages_24562 write_cache_pages 0 24562 NULL
117085 +SyS_pselect6_24582 SyS_pselect6 1 24582 NULL
117086 +udf_compute_nr_groups_24594 udf_compute_nr_groups 0 24594 NULL
117087 +sensor_hub_get_physical_device_count_24605 sensor_hub_get_physical_device_count 0 24605 NULL nohasharray
117088 +lov_alloc_memmd_24605 lov_alloc_memmd 2 24605 &sensor_hub_get_physical_device_count_24605
117089 +SyS_poll_24620 SyS_poll 2 24620 NULL
117090 +context_alloc_24645 context_alloc 3 24645 NULL
117091 +blk_rq_err_bytes_24650 blk_rq_err_bytes 0 24650 NULL
117092 +btrfs_check_data_free_space_24692 btrfs_check_data_free_space 0 24692 NULL
117093 +datafab_write_data_24696 datafab_write_data 4 24696 NULL
117094 +intelfbhw_get_p1p2_24703 intelfbhw_get_p1p2 2 24703 NULL
117095 +simple_attr_read_24738 simple_attr_read 3 24738 NULL
117096 +qla2x00_change_queue_depth_24742 qla2x00_change_queue_depth 2 24742 NULL
117097 +get_dma_residue_24749 get_dma_residue 0 24749 NULL
117098 +kgdb_hex2mem_24755 kgdb_hex2mem 3 24755 NULL
117099 +ocfs2_read_blocks_24777 ocfs2_read_blocks 0 24777 NULL
117100 +datablob_hmac_verify_24786 datablob_hmac_verify 4 24786 NULL
117101 +cache_read_24790 cache_read 3 24790 NULL
117102 +user_regset_copyout_24796 user_regset_copyout 7 24796 NULL
117103 +kvm_read_guest_virt_helper_24804 kvm_read_guest_virt_helper 3-1 24804 NULL
117104 +ath6kl_fwlog_mask_write_24810 ath6kl_fwlog_mask_write 3 24810 NULL
117105 +snd_als4k_gcr_read_24840 snd_als4k_gcr_read 0 24840 NULL
117106 +snd_pcm_lib_buffer_bytes_24865 snd_pcm_lib_buffer_bytes 0 24865 NULL
117107 +pnp_alloc_24869 pnp_alloc 1 24869 NULL nohasharray
117108 +l2cap_create_basic_pdu_24869 l2cap_create_basic_pdu 3 24869 &pnp_alloc_24869
117109 +queues_read_24877 queues_read 3 24877 NULL
117110 +codec_list_read_file_24910 codec_list_read_file 3 24910 NULL
117111 +v4l2_ctrl_new_24927 v4l2_ctrl_new 7 24927 NULL nohasharray
117112 +__btrfs_free_extent_24927 __btrfs_free_extent 7 24927 &v4l2_ctrl_new_24927
117113 +ocfs2_fiemap_24949 ocfs2_fiemap 3-4 24949 NULL
117114 +packet_sendmsg_24954 packet_sendmsg 4 24954 NULL
117115 +security_inode_rename_24971 security_inode_rename 0 24971 NULL
117116 +twl_i2c_write_u8_24976 twl_i2c_write_u8 3 24976 NULL
117117 +llc_ui_sendmsg_24987 llc_ui_sendmsg 4 24987 NULL
117118 +key_conf_hw_key_idx_read_25003 key_conf_hw_key_idx_read 3 25003 NULL
117119 +il_dbgfs_channels_read_25005 il_dbgfs_channels_read 3 25005 NULL
117120 +ni_660x_num_counters_25031 ni_660x_num_counters 0 25031 NULL
117121 +nfs_dns_resolve_name_25036 nfs_dns_resolve_name 3 25036 NULL
117122 +btrfs_stack_key_blockptr_25058 btrfs_stack_key_blockptr 0 25058 NULL
117123 +gs_buf_alloc_25067 gs_buf_alloc 2 25067 NULL
117124 +ll_track_pid_seq_write_25068 ll_track_pid_seq_write 3 25068 NULL
117125 +SYSC_listxattr_25072 SYSC_listxattr 3 25072 NULL
117126 +ima_appraise_measurement_25093 ima_appraise_measurement 6 25093 NULL
117127 +snd_rawmidi_kernel_write_25106 snd_rawmidi_kernel_write 3 25106 NULL
117128 +ipath_init_qp_table_25167 ipath_init_qp_table 2 25167 NULL
117129 +_iwl_dbgfs_reduced_txp_write_25169 _iwl_dbgfs_reduced_txp_write 3 25169 NULL nohasharray
117130 +kvm_mmu_notifier_change_pte_25169 kvm_mmu_notifier_change_pte 3 25169 &_iwl_dbgfs_reduced_txp_write_25169
117131 +sctp_getsockopt_local_addrs_25178 sctp_getsockopt_local_addrs 2 25178 NULL
117132 +mon_stat_read_25238 mon_stat_read 3 25238 NULL
117133 +stripe_status_25259 stripe_status 5 25259 NULL
117134 +snd_pcm_start_25273 snd_pcm_start 0 25273 NULL
117135 +crypto_alloc_instance2_25277 crypto_alloc_instance2 3 25277 NULL
117136 +vfs_writev_25278 vfs_writev 3 25278 NULL
117137 +l2tp_session_create_25286 l2tp_session_create 1 25286 NULL
117138 +ath9k_debugfs_read_buf_25316 ath9k_debugfs_read_buf 3 25316 NULL
117139 +rng_buffer_size_25348 rng_buffer_size 0 25348 NULL
117140 +SYSC_kexec_load_25361 SYSC_kexec_load 2 25361 NULL
117141 +unix_mkname_25368 unix_mkname 0-2 25368 NULL
117142 +sel_read_mls_25369 sel_read_mls 3 25369 NULL
117143 +vsp1_entity_init_25407 vsp1_entity_init 3 25407 NULL
117144 +dai_list_read_file_25421 dai_list_read_file 3 25421 NULL
117145 +ipath_decode_err_25468 ipath_decode_err 3 25468 NULL
117146 +crypto_hash_digestsize_25469 crypto_hash_digestsize 0 25469 NULL
117147 +ivtv_buf_copy_from_user_25502 ivtv_buf_copy_from_user 4-0 25502 NULL
117148 +snd_pcm_plugin_build_25505 snd_pcm_plugin_build 5 25505 NULL
117149 +sb_permission_25523 sb_permission 0 25523 NULL
117150 +ext3_get_inode_loc_25542 ext3_get_inode_loc 0 25542 NULL
117151 +ieee80211_if_read_path_refresh_time_25545 ieee80211_if_read_path_refresh_time 3 25545 NULL
117152 +wimax_addr_scnprint_25548 wimax_addr_scnprint 2 25548 NULL
117153 +ht_print_chan_25556 ht_print_chan 0-3-4 25556 NULL
117154 +skb_tailroom_25567 skb_tailroom 0 25567 NULL
117155 +ping_recvmsg_25597 ping_recvmsg 4 25597 NULL
117156 +copy_user_generic_25611 copy_user_generic 0 25611 NULL
117157 +proc_coredump_filter_write_25625 proc_coredump_filter_write 3 25625 NULL
117158 +befs_utf2nls_25628 befs_utf2nls 3 25628 NULL nohasharray
117159 +__get_user_pages_25628 __get_user_pages 0 25628 &befs_utf2nls_25628
117160 +__direct_map_25647 __direct_map 5-6 25647 NULL
117161 +aircable_prepare_write_buffer_25669 aircable_prepare_write_buffer 3 25669 NULL
117162 +lpfc_idiag_cmd_get_25672 lpfc_idiag_cmd_get 2 25672 NULL
117163 +sta_inactive_ms_read_25690 sta_inactive_ms_read 3 25690 NULL
117164 +prom_early_alloc_25692 prom_early_alloc 1 25692 NULL
117165 +rx_filter_mc_filter_read_25712 rx_filter_mc_filter_read 3 25712 NULL
117166 +ibmasm_new_command_25714 ibmasm_new_command 2 25714 NULL
117167 +__alloc_bootmem_low_node_25726 __alloc_bootmem_low_node 2 25726 NULL nohasharray
117168 +sel_write_context_25726 sel_write_context 3 25726 &__alloc_bootmem_low_node_25726
117169 +cxgbi_device_portmap_create_25747 cxgbi_device_portmap_create 3 25747 NULL
117170 +event_rx_pool_read_25792 event_rx_pool_read 3 25792 NULL
117171 +sg_read_25799 sg_read 3 25799 NULL
117172 +system_enable_read_25815 system_enable_read 3 25815 NULL
117173 +realloc_buffer_25816 realloc_buffer 2 25816 NULL
117174 +pwr_missing_bcns_read_25824 pwr_missing_bcns_read 3 25824 NULL
117175 +parport_read_25855 parport_read 0 25855 NULL
117176 +xfs_dir2_sf_hdr_size_25858 xfs_dir2_sf_hdr_size 0 25858 NULL
117177 +key_attr_size_25865 key_attr_size 0 25865 NULL
117178 +ath6kl_regread_read_25884 ath6kl_regread_read 3 25884 NULL
117179 +run_delalloc_nocow_25896 run_delalloc_nocow 3-4 25896 NULL
117180 +sisusbcon_scroll_area_25899 sisusbcon_scroll_area 4-3 25899 NULL
117181 +lpfc_change_queue_depth_25905 lpfc_change_queue_depth 2 25905 NULL
117182 +nvme_trans_mode_page_create_25908 nvme_trans_mode_page_create 7-4 25908 NULL
117183 +do_jffs2_setxattr_25910 do_jffs2_setxattr 5 25910 NULL
117184 +rcname_read_25919 rcname_read 3 25919 NULL
117185 +snd_es1938_capture_copy_25930 snd_es1938_capture_copy 5 25930 NULL
117186 +key_flags_read_25931 key_flags_read 3 25931 NULL
117187 +copy_play_buf_25932 copy_play_buf 3 25932 NULL
117188 +flush_25957 flush 2 25957 NULL
117189 +_regmap_multi_reg_write_25967 _regmap_multi_reg_write 3 25967 NULL
117190 +udp_setsockopt_25985 udp_setsockopt 5 25985 NULL
117191 +lustre_msg_buflen_v2_25997 lustre_msg_buflen_v2 0 25997 NULL
117192 +SyS_process_vm_readv_26019 SyS_process_vm_readv 3-5 26019 NULL
117193 +mptscsih_change_queue_depth_26036 mptscsih_change_queue_depth 2 26036 NULL
117194 +selinux_inode_post_setxattr_26037 selinux_inode_post_setxattr 4 26037 NULL
117195 +keyctl_update_key_26061 keyctl_update_key 3 26061 NULL
117196 +pri_wm_latency_write_26063 pri_wm_latency_write 3 26063 NULL
117197 +rx_rx_wa_density_dropped_frame_read_26095 rx_rx_wa_density_dropped_frame_read 3 26095 NULL
117198 +i8042_pnp_id_to_string_26108 i8042_pnp_id_to_string 3 26108 NULL
117199 +read_sb_page_26119 read_sb_page 5 26119 NULL
117200 +ath9k_hw_name_26146 ath9k_hw_name 3 26146 NULL
117201 +copy_oldmem_page_26164 copy_oldmem_page 3 26164 NULL
117202 +gfs2_xattr_acl_get_26166 gfs2_xattr_acl_get 0 26166 NULL nohasharray
117203 +ath6kl_roam_table_read_26166 ath6kl_roam_table_read 3 26166 &gfs2_xattr_acl_get_26166
117204 +disk_devt_26180 disk_devt 0 26180 NULL
117205 +ieee80211_if_fmt_dot11MeshTTL_26198 ieee80211_if_fmt_dot11MeshTTL 3 26198 NULL
117206 +xfs_idata_realloc_26199 xfs_idata_realloc 2 26199 NULL
117207 +mce_write_26201 mce_write 3 26201 NULL
117208 +mwifiex_regrdwr_write_26225 mwifiex_regrdwr_write 3 26225 NULL
117209 +_scsih_change_queue_depth_26230 _scsih_change_queue_depth 2 26230 NULL
117210 +rxrpc_recvmsg_26233 rxrpc_recvmsg 4 26233 NULL
117211 +simple_setattr_26234 simple_setattr 0 26234 NULL
117212 +genwqe_ffdc_buff_size_26263 genwqe_ffdc_buff_size 0 26263 NULL
117213 +crypto_ctxsize_26278 crypto_ctxsize 0 26278 NULL
117214 +wacom_set_device_mode_26280 wacom_set_device_mode 3 26280 NULL
117215 +snd_pcm_plug_client_channels_buf_26309 snd_pcm_plug_client_channels_buf 0-3 26309 NULL
117216 +pwr_wake_on_host_read_26321 pwr_wake_on_host_read 3 26321 NULL
117217 +check_can_nocow_26336 check_can_nocow 2 26336 NULL
117218 +snd_vx_check_reg_bit_26344 snd_vx_check_reg_bit 0 26344 NULL
117219 +ocfs2_duplicate_clusters_by_page_26357 ocfs2_duplicate_clusters_by_page 6-3 26357 NULL
117220 +cifs_readdata_alloc_26360 cifs_readdata_alloc 1 26360 NULL
117221 +invalidate_inode_pages2_range_26403 invalidate_inode_pages2_range 0 26403 NULL
117222 +ntty_write_26404 ntty_write 3 26404 NULL
117223 +firmware_store_26408 firmware_store 4 26408 NULL
117224 +pagemap_read_26441 pagemap_read 3 26441 NULL
117225 +enc_pools_add_pages_26461 enc_pools_add_pages 1 26461 NULL nohasharray
117226 +tower_read_26461 tower_read 3 26461 &enc_pools_add_pages_26461
117227 +ib_alloc_device_26483 ib_alloc_device 1 26483 NULL
117228 +ulong_write_file_26485 ulong_write_file 3 26485 NULL
117229 +dvb_ca_en50221_io_ioctl_26490 dvb_ca_en50221_io_ioctl 2 26490 NULL
117230 +read_vmcore_26501 read_vmcore 3 26501 NULL
117231 +uhid_char_write_26502 uhid_char_write 3 26502 NULL
117232 +vfio_pci_set_msi_trigger_26507 vfio_pci_set_msi_trigger 4-3 26507 NULL
117233 +iwl_dbgfs_rf_reset_read_26512 iwl_dbgfs_rf_reset_read 3 26512 NULL
117234 +alloc_ep_req_26521 alloc_ep_req 3-2 26521 NULL
117235 +SyS_rt_sigpending_26538 SyS_rt_sigpending 2 26538 NULL
117236 +__vhost_add_used_n_26554 __vhost_add_used_n 3 26554 NULL
117237 +dio_new_bio_26562 dio_new_bio 0 26562 NULL
117238 +rts51x_read_mem_26577 rts51x_read_mem 4 26577 NULL
117239 +kernfs_name_locked_26617 kernfs_name_locked 3 26617 NULL
117240 +pwr_fix_tsf_ps_read_26627 pwr_fix_tsf_ps_read 3 26627 NULL
117241 +irq_alloc_generic_chip_26650 irq_alloc_generic_chip 2 26650 NULL nohasharray
117242 +inb_p_26650 inb_p 0 26650 &irq_alloc_generic_chip_26650
117243 +nouveau_volt_create__26654 nouveau_volt_create_ 4 26654 NULL
117244 +cipso_v4_map_cat_rbm_hton_26680 cipso_v4_map_cat_rbm_hton 0 26680 NULL
117245 +flowinfo_read_26683 flowinfo_read 3 26683 NULL
117246 +sysfs_add_file_26716 sysfs_add_file 0 26716 NULL
117247 +nouveau_namedb_create__26732 nouveau_namedb_create_ 7 26732 NULL
117248 +pipeline_tcp_rx_stat_fifo_int_read_26745 pipeline_tcp_rx_stat_fifo_int_read 3 26745 NULL
117249 +snd_hda_get_raw_connections_26762 snd_hda_get_raw_connections 0 26762 NULL
117250 +dma_map_single_attrs_26779 dma_map_single_attrs 0 26779 NULL
117251 +qlcnic_alloc_sds_rings_26795 qlcnic_alloc_sds_rings 2 26795 NULL
117252 +cipso_v4_genopt_26812 cipso_v4_genopt 0 26812 NULL
117253 +iwl_trans_read_mem32_26825 iwl_trans_read_mem32 0 26825 NULL
117254 +smk_write_load_26829 smk_write_load 3 26829 NULL
117255 +scnprint_id_26842 scnprint_id 3-0 26842 NULL
117256 +ecryptfs_miscdev_write_26847 ecryptfs_miscdev_write 3 26847 NULL
117257 +ss_alloc_ep_req_26848 ss_alloc_ep_req 2 26848 NULL
117258 +tipc_conn_sendmsg_26867 tipc_conn_sendmsg 5 26867 NULL
117259 +ath6kl_create_qos_write_26879 ath6kl_create_qos_write 3 26879 NULL
117260 +svc_print_xprts_26881 svc_print_xprts 0 26881 NULL
117261 +skb_zerocopy_headlen_26910 skb_zerocopy_headlen 0 26910 NULL
117262 +hhf_zalloc_26912 hhf_zalloc 1 26912 NULL
117263 +cfg80211_process_auth_26916 cfg80211_process_auth 3 26916 NULL
117264 +x25_asy_change_mtu_26928 x25_asy_change_mtu 2 26928 NULL
117265 +scsi_tgt_copy_sense_26933 scsi_tgt_copy_sense 3 26933 NULL
117266 +sctp_setsockopt_adaptation_layer_26935 sctp_setsockopt_adaptation_layer 3 26935 NULL nohasharray
117267 +pwr_ps_enter_read_26935 pwr_ps_enter_read 3 26935 &sctp_setsockopt_adaptation_layer_26935
117268 +hecubafb_write_26942 hecubafb_write 3 26942 NULL
117269 +extract_entropy_user_26952 extract_entropy_user 3 26952 NULL nohasharray
117270 +do_trimming_26952 do_trimming 3 26952 &extract_entropy_user_26952
117271 +do_direct_IO_26979 do_direct_IO 0 26979 NULL
117272 +__videobuf_alloc_vb_27062 __videobuf_alloc_vb 1 27062 NULL
117273 +ext4_convert_unwritten_extents_27064 ext4_convert_unwritten_extents 4-3-0 27064 NULL
117274 +snd_pcm_lib_period_bytes_27071 snd_pcm_lib_period_bytes 0 27071 NULL
117275 +paravirt_read_msr_27077 paravirt_read_msr 0 27077 NULL
117276 +alloc_fdmem_27083 alloc_fdmem 1 27083 NULL
117277 +btmrvl_hscmd_write_27089 btmrvl_hscmd_write 3 27089 NULL nohasharray
117278 +ath9k_hw_4k_dump_eeprom_27089 ath9k_hw_4k_dump_eeprom 5-4 27089 &btmrvl_hscmd_write_27089
117279 +__devcgroup_inode_permission_27108 __devcgroup_inode_permission 0 27108 NULL
117280 +get_kernel_page_27133 get_kernel_page 0 27133 NULL
117281 +drbd_get_capacity_27141 drbd_get_capacity 0 27141 NULL
117282 +pms_capture_27142 pms_capture 4 27142 NULL
117283 +btmrvl_hscfgcmd_write_27143 btmrvl_hscfgcmd_write 3 27143 NULL
117284 +snd_compr_calc_avail_27165 snd_compr_calc_avail 0 27165 NULL
117285 +ieee80211_if_read_rc_rateidx_mask_5ghz_27183 ieee80211_if_read_rc_rateidx_mask_5ghz 3 27183 NULL
117286 +write_kmem_27225 write_kmem 3 27225 NULL
117287 +dbAllocAG_27228 dbAllocAG 0 27228 NULL
117288 +rxrpc_request_key_27235 rxrpc_request_key 3 27235 NULL
117289 +ll_track_gid_seq_write_27267 ll_track_gid_seq_write 3 27267 NULL
117290 +comedi_alloc_devpriv_27272 comedi_alloc_devpriv 2 27272 NULL
117291 +copy_from_buf_27308 copy_from_buf 4-2 27308 NULL
117292 +virtqueue_add_inbuf_27312 virtqueue_add_inbuf 3 27312 NULL
117293 +snd_pcm_oss_write2_27332 snd_pcm_oss_write2 3-0 27332 NULL
117294 +afs_cell_create_27346 afs_cell_create 2 27346 NULL
117295 +iwl_dbgfs_csr_write_27363 iwl_dbgfs_csr_write 3 27363 NULL
117296 +pcbit_stat_27364 pcbit_stat 2 27364 NULL
117297 +seq_read_27411 seq_read 3 27411 NULL
117298 +ib_dma_map_sg_27413 ib_dma_map_sg 0 27413 NULL
117299 +ieee80211_if_read_smps_27416 ieee80211_if_read_smps 3 27416 NULL
117300 +cypress_write_27423 cypress_write 4 27423 NULL
117301 +sddr09_read_data_27447 sddr09_read_data 3 27447 NULL
117302 +v4l2_ctrl_new_std_menu_items_27487 v4l2_ctrl_new_std_menu_items 4 27487 NULL
117303 +hcd_buffer_alloc_27495 hcd_buffer_alloc 2 27495 NULL
117304 +ip_set_get_h32_27498 ip_set_get_h32 0 27498 NULL
117305 +btrfs_get_64_27499 btrfs_get_64 0 27499 NULL
117306 +garmin_read_process_27509 garmin_read_process 3 27509 NULL
117307 +oti_alloc_cookies_27510 oti_alloc_cookies 2 27510 NULL
117308 +ib_copy_to_udata_27525 ib_copy_to_udata 3 27525 NULL
117309 +snd_sonicvibes_getdmaa_27552 snd_sonicvibes_getdmaa 0 27552 NULL
117310 +SyS_fgetxattr_27571 SyS_fgetxattr 4 27571 NULL
117311 +sco_sock_recvmsg_27572 sco_sock_recvmsg 4 27572 NULL
117312 +libipw_alloc_txb_27579 libipw_alloc_txb 1 27579 NULL
117313 +C_SYSC_mbind_27636 C_SYSC_mbind 5 27636 NULL
117314 +ocfs2_xattr_ibody_get_27642 ocfs2_xattr_ibody_get 0 27642 NULL nohasharray
117315 +read_flush_procfs_27642 read_flush_procfs 3 27642 &ocfs2_xattr_ibody_get_27642 nohasharray
117316 +nl80211_send_connect_result_27642 nl80211_send_connect_result 5-7 27642 &read_flush_procfs_27642 nohasharray
117317 +ocfs2_direct_IO_27642 ocfs2_direct_IO 4 27642 &nl80211_send_connect_result_27642
117318 +add_new_gdb_27643 add_new_gdb 3 27643 NULL
117319 +btrfs_fallocate_27647 btrfs_fallocate 3-4 27647 NULL
117320 +qnx6_readpages_27657 qnx6_readpages 4 27657 NULL
117321 +cdrom_read_cdda_old_27664 cdrom_read_cdda_old 4 27664 NULL
117322 +ocfs2_extend_dir_27695 ocfs2_extend_dir 4 27695 NULL
117323 +fs_path_add_from_extent_buffer_27702 fs_path_add_from_extent_buffer 4 27702 NULL
117324 +evm_write_key_27715 evm_write_key 3 27715 NULL
117325 +ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol_27722 ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol 3 27722 NULL
117326 +xfs_dir2_block_sfsize_27727 xfs_dir2_block_sfsize 0 27727 NULL
117327 +SyS_setsockopt_27759 SyS_setsockopt 5 27759 NULL
117328 +transport_init_session_tags_27776 transport_init_session_tags 1-2 27776 NULL
117329 +__lov_setstripe_27782 __lov_setstripe 2 27782 NULL
117330 +twl4030_set_gpio_dataout_27792 twl4030_set_gpio_dataout 1 27792 NULL
117331 +SyS_readv_27804 SyS_readv 3 27804 NULL
117332 +mpihelp_mul_27805 mpihelp_mul 5-3 27805 NULL
117333 +hpt374_read_freq_27828 hpt374_read_freq 0 27828 NULL
117334 +init_header_complete_27833 init_header_complete 0 27833 NULL
117335 +read_profile_27859 read_profile 3 27859 NULL
117336 +sky2_pci_read16_27863 sky2_pci_read16 0 27863 NULL
117337 +ieee80211_if_read_dot11MeshHWMProotInterval_27873 ieee80211_if_read_dot11MeshHWMProotInterval 3 27873 NULL
117338 +unix_seqpacket_sendmsg_27893 unix_seqpacket_sendmsg 4 27893 NULL
117339 +i915_error_object_create_sized_27919 i915_error_object_create_sized 4 27919 NULL
117340 +check_mapped_name_27943 check_mapped_name 3 27943 NULL
117341 +tracing_clock_write_27961 tracing_clock_write 3 27961 NULL nohasharray
117342 +bio_next_split_27961 bio_next_split 2 27961 &tracing_clock_write_27961
117343 +security_path_chown_27966 security_path_chown 0 27966 NULL
117344 +tipc_media_addr_printf_27971 tipc_media_addr_printf 2 27971 NULL
117345 +mic_rx_pkts_read_27972 mic_rx_pkts_read 3 27972 NULL nohasharray
117346 +device_register_27972 device_register 0 27972 &mic_rx_pkts_read_27972
117347 +compat_SyS_set_mempolicy_27975 compat_SyS_set_mempolicy 3 27975 NULL
117348 +pci_enable_device_flags_27977 pci_enable_device_flags 0 27977 NULL
117349 +edt_ft5x06_debugfs_raw_data_read_28002 edt_ft5x06_debugfs_raw_data_read 3 28002 NULL
117350 +seq_get_buf_28006 seq_get_buf 0 28006 NULL
117351 +snd_rawmidi_write_28008 snd_rawmidi_write 3 28008 NULL
117352 +powercap_register_zone_28028 powercap_register_zone 6 28028 NULL
117353 +sctp_setsockopt_maxburst_28041 sctp_setsockopt_maxburst 3 28041 NULL
117354 +rts51x_xd_rw_28046 rts51x_xd_rw 3-4 28046 NULL
117355 +cx231xx_init_vbi_isoc_28053 cx231xx_init_vbi_isoc 3-2-4 28053 NULL
117356 +pool_status_28055 pool_status 5 28055 NULL
117357 +init_rs_non_canonical_28059 init_rs_non_canonical 1 28059 NULL
117358 +lpfc_idiag_mbxacc_read_28061 lpfc_idiag_mbxacc_read 3 28061 NULL
117359 +tx_frag_bad_mblk_num_read_28064 tx_frag_bad_mblk_num_read 3 28064 NULL
117360 +mmc_test_alloc_mem_28102 mmc_test_alloc_mem 3-2 28102 NULL
117361 +rx_defrag_need_defrag_read_28117 rx_defrag_need_defrag_read 3 28117 NULL
117362 +vgacon_adjust_height_28124 vgacon_adjust_height 2 28124 NULL
117363 +video_read_28148 video_read 3 28148 NULL
117364 +snd_midi_channel_alloc_set_28153 snd_midi_channel_alloc_set 1 28153 NULL
117365 +stats_dot11FCSErrorCount_read_28154 stats_dot11FCSErrorCount_read 3 28154 NULL
117366 +vread_28173 vread 0-3 28173 NULL
117367 +macvtap_get_user_28185 macvtap_get_user 4 28185 NULL
117368 +counter_free_res_28187 counter_free_res 5 28187 NULL
117369 +read_disk_sb_28188 read_disk_sb 2 28188 NULL
117370 +nouveau_mxm_create__28200 nouveau_mxm_create_ 4 28200 NULL
117371 +__qp_memcpy_from_queue_28220 __qp_memcpy_from_queue 3-4 28220 NULL
117372 +line6_alloc_sysex_buffer_28225 line6_alloc_sysex_buffer 4 28225 NULL
117373 +amd_nb_num_28228 amd_nb_num 0 28228 NULL
117374 +fuse_direct_IO_28275 fuse_direct_IO 4 28275 NULL
117375 +usemap_size_28281 usemap_size 0 28281 NULL
117376 +inline_xattr_size_28285 inline_xattr_size 0 28285 NULL
117377 +dma_map_sg_attrs_28289 dma_map_sg_attrs 0 28289 NULL
117378 +SyS_ppoll_28290 SyS_ppoll 2 28290 NULL
117379 +kstrtos16_from_user_28300 kstrtos16_from_user 2 28300 NULL
117380 +nouveau_compat_ioctl_28305 nouveau_compat_ioctl 2 28305 NULL
117381 +snd_pcm_oss_read_28317 snd_pcm_oss_read 3 28317 NULL
117382 +security_inode_link_28327 security_inode_link 0 28327 NULL
117383 +generic_write_checks_28329 generic_write_checks 0 28329 NULL
117384 +bm_entry_write_28338 bm_entry_write 3 28338 NULL
117385 +tcp_copy_to_iovec_28344 tcp_copy_to_iovec 3 28344 NULL
117386 +snapshot_write_28351 snapshot_write 3 28351 NULL
117387 +xfs_iomap_write_unwritten_28365 xfs_iomap_write_unwritten 3-2 28365 NULL
117388 +batadv_handle_tt_response_28370 batadv_handle_tt_response 4 28370 NULL
117389 +dlmfs_file_read_28385 dlmfs_file_read 3 28385 NULL
117390 +tx_frag_cache_miss_read_28394 tx_frag_cache_miss_read 3 28394 NULL
117391 +bypass_pwup_write_28416 bypass_pwup_write 3 28416 NULL
117392 +subdev_ioctl_28417 subdev_ioctl 2 28417 NULL
117393 +ksocknal_alloc_tx_28426 ksocknal_alloc_tx 2 28426 NULL
117394 +mpage_readpages_28436 mpage_readpages 3 28436 NULL
117395 +snd_emu10k1_efx_read_28452 snd_emu10k1_efx_read 2 28452 NULL
117396 +key_mic_failures_read_28457 key_mic_failures_read 3 28457 NULL
117397 +alloc_irq_cpu_rmap_28459 alloc_irq_cpu_rmap 1 28459 NULL
117398 +ps_poll_upsd_utilization_read_28519 ps_poll_upsd_utilization_read 3 28519 NULL
117399 +i2400m_tx_stats_read_28527 i2400m_tx_stats_read 3 28527 NULL
117400 +early_init_dt_alloc_memory_arch_28528 early_init_dt_alloc_memory_arch 1 28528 NULL
117401 +sel_read_policycap_28544 sel_read_policycap 3 28544 NULL
117402 +mptctl_getiocinfo_28545 mptctl_getiocinfo 2 28545 NULL nohasharray
117403 +aio_read_events_28545 aio_read_events 3 28545 &mptctl_getiocinfo_28545 nohasharray
117404 +run_delalloc_range_28545 run_delalloc_range 3-4 28545 &aio_read_events_28545
117405 +sysfs_create_bin_file_28551 sysfs_create_bin_file 0 28551 NULL
117406 +b43legacy_debugfs_write_28556 b43legacy_debugfs_write 3 28556 NULL
117407 +asymmetric_verify_28567 asymmetric_verify 3 28567 NULL
117408 +oxygen_read32_28582 oxygen_read32 0 28582 NULL
117409 +task_cgroup_path_28599 task_cgroup_path 3 28599 NULL
117410 +extract_entropy_28604 extract_entropy 5-3 28604 NULL
117411 +kfifo_unused_28612 kfifo_unused 0 28612 NULL
117412 +snd_nm256_capture_copy_28622 snd_nm256_capture_copy 3-5 28622 NULL
117413 +setup_usemap_28636 setup_usemap 3-4 28636 NULL
117414 +qib_handle_6120_hwerrors_28642 qib_handle_6120_hwerrors 3 28642 NULL
117415 +p9_fcall_alloc_28652 p9_fcall_alloc 1 28652 NULL
117416 +read_nic_io_byte_28654 read_nic_io_byte 0 28654 NULL
117417 +blk_queue_resize_tags_28670 blk_queue_resize_tags 2 28670 NULL
117418 +SyS_setgroups16_28686 SyS_setgroups16 1 28686 NULL
117419 +kvm_mmu_get_page_28692 kvm_mmu_get_page 2 28692 NULL
117420 +drm_plane_init_28731 drm_plane_init 6 28731 NULL
117421 +spi_execute_28736 spi_execute 5 28736 NULL
117422 +snd_pcm_aio_write_28738 snd_pcm_aio_write 3 28738 NULL
117423 +read_file_btcoex_28743 read_file_btcoex 3 28743 NULL
117424 +max_hw_blocks_28748 max_hw_blocks 0 28748 NULL
117425 +rpc_pipe_generic_upcall_28766 rpc_pipe_generic_upcall 4 28766 NULL
117426 +ath6kl_get_num_reg_28780 ath6kl_get_num_reg 0 28780 NULL
117427 +sel_write_member_28800 sel_write_member 3 28800 NULL
117428 +iwl_dbgfs_rxon_filter_flags_read_28832 iwl_dbgfs_rxon_filter_flags_read 3 28832 NULL
117429 +kernel_tree_alloc_28833 kernel_tree_alloc 1 28833 NULL
117430 +vp_request_msix_vectors_28849 vp_request_msix_vectors 2 28849 NULL
117431 +ipv6_renew_options_28867 ipv6_renew_options 5 28867 NULL
117432 +max_io_len_target_boundary_28879 max_io_len_target_boundary 0-1 28879 NULL
117433 +packet_sendmsg_spkt_28885 packet_sendmsg_spkt 4 28885 NULL
117434 +da9055_group_write_28904 da9055_group_write 2-3 28904 NULL
117435 +ps_upsd_timeouts_read_28924 ps_upsd_timeouts_read 3 28924 NULL
117436 +iwl_dbgfs_sleep_level_override_write_28925 iwl_dbgfs_sleep_level_override_write 3 28925 NULL
117437 +push_rx_28939 push_rx 3 28939 NULL
117438 +mxuport_prepare_write_buffer_28943 mxuport_prepare_write_buffer 3 28943 NULL
117439 +btrfs_trim_block_group_28963 btrfs_trim_block_group 3-4 28963 NULL
117440 +alloc_sched_domains_28972 alloc_sched_domains 1 28972 NULL
117441 +hash_net6_expire_28979 hash_net6_expire 4 28979 NULL
117442 +hci_sock_setsockopt_28993 hci_sock_setsockopt 5 28993 NULL
117443 +bin_uuid_28999 bin_uuid 3 28999 NULL
117444 +fd_execute_rw_29004 fd_execute_rw 3 29004 NULL
117445 +ieee80211_if_read_ht_opmode_29044 ieee80211_if_read_ht_opmode 3 29044 NULL
117446 +rxrpc_sendmsg_29049 rxrpc_sendmsg 4 29049 NULL
117447 +btrfs_root_bytenr_29058 btrfs_root_bytenr 0 29058 NULL
117448 +iso_packets_buffer_init_29061 iso_packets_buffer_init 3-4 29061 NULL
117449 +lpfc_idiag_extacc_drivr_get_29067 lpfc_idiag_extacc_drivr_get 0-3 29067 NULL
117450 +sctp_getsockopt_assoc_stats_29074 sctp_getsockopt_assoc_stats 2 29074 NULL
117451 +iwl_dbgfs_log_event_write_29088 iwl_dbgfs_log_event_write 3 29088 NULL
117452 +ccp_init_dm_workarea_29097 ccp_init_dm_workarea 3 29097 NULL
117453 +__compat_sys_preadv64_29103 __compat_sys_preadv64 3 29103 NULL
117454 +isdn_ppp_write_29109 isdn_ppp_write 4 29109 NULL
117455 +snprintf_29125 snprintf 0 29125 NULL
117456 +iov_shorten_29130 iov_shorten 0 29130 NULL
117457 +proc_scsi_write_29142 proc_scsi_write 3 29142 NULL
117458 +kvm_mmu_notifier_clear_flush_young_29154 kvm_mmu_notifier_clear_flush_young 3 29154 NULL
117459 +drm_property_create_enum_29201 drm_property_create_enum 5 29201 NULL
117460 +wusb_prf_256_29203 wusb_prf_256 7 29203 NULL
117461 +iwl_dbgfs_temperature_read_29224 iwl_dbgfs_temperature_read 3 29224 NULL
117462 +nvme_trans_copy_from_user_29227 nvme_trans_copy_from_user 3 29227 NULL
117463 +irq_domain_add_linear_29236 irq_domain_add_linear 2 29236 NULL
117464 +recover_peb_29238 recover_peb 0 29238 NULL
117465 +evdev_handle_get_val_29242 evdev_handle_get_val 5-6 29242 NULL
117466 +security_context_to_sid_core_29248 security_context_to_sid_core 2 29248 NULL
117467 +rbd_osd_req_create_29260 rbd_osd_req_create 3 29260 NULL
117468 +prism2_set_genericelement_29277 prism2_set_genericelement 3 29277 NULL
117469 +ext4_fiemap_29296 ext4_fiemap 4 29296 NULL
117470 +sn9c102_read_29305 sn9c102_read 3 29305 NULL
117471 +__fuse_get_req_29315 __fuse_get_req 2 29315 NULL
117472 +lprocfs_write_helper_29323 lprocfs_write_helper 2 29323 NULL
117473 +kvm_handle_hva_29326 kvm_handle_hva 2 29326 NULL
117474 +tun_put_user_29337 tun_put_user 5 29337 NULL
117475 +__alloc_ei_netdev_29338 __alloc_ei_netdev 1 29338 NULL
117476 +l2cap_sock_setsockopt_old_29346 l2cap_sock_setsockopt_old 4 29346 NULL
117477 +read_file_tx99_power_29405 read_file_tx99_power 3 29405 NULL
117478 +mempool_create_29437 mempool_create 1 29437 NULL
117479 +crypto_ahash_alignmask_29445 crypto_ahash_alignmask 0 29445 NULL
117480 +p9_client_prepare_req_29448 p9_client_prepare_req 3 29448 NULL
117481 +validate_scan_freqs_29462 validate_scan_freqs 0 29462 NULL
117482 +SyS_flistxattr_29474 SyS_flistxattr 3 29474 NULL
117483 +do_register_entry_29478 do_register_entry 4 29478 NULL
117484 +simple_strtoul_29480 simple_strtoul 0 29480 NULL
117485 +btmrvl_pscmd_write_29504 btmrvl_pscmd_write 3 29504 NULL
117486 +btrfs_file_extent_disk_bytenr_29505 btrfs_file_extent_disk_bytenr 0 29505 NULL
117487 +i2c_add_adapter_29507 i2c_add_adapter 0 29507 NULL
117488 +usnic_vnic_spec_dump_29508 usnic_vnic_spec_dump 2 29508 NULL
117489 +write_file_regidx_29517 write_file_regidx 3 29517 NULL
117490 +atk_debugfs_ggrp_read_29522 atk_debugfs_ggrp_read 3 29522 NULL
117491 +pci_enable_msix_29524 pci_enable_msix 0 29524 NULL
117492 +ftrace_write_29551 ftrace_write 3 29551 NULL
117493 +idetape_queue_rw_tail_29562 idetape_queue_rw_tail 3 29562 NULL
117494 +leaf_dealloc_29566 leaf_dealloc 3 29566 NULL
117495 +kvm_read_guest_virt_system_29569 kvm_read_guest_virt_system 4-2 29569 NULL
117496 +lbs_lowsnr_read_29571 lbs_lowsnr_read 3 29571 NULL
117497 +security_path_chmod_29578 security_path_chmod 0 29578 NULL
117498 +iwl_dbgfs_missed_beacon_write_29586 iwl_dbgfs_missed_beacon_write 3 29586 NULL
117499 +pvr2_hdw_report_unlocked_29589 pvr2_hdw_report_unlocked 4-0 29589 NULL
117500 +dio_set_defer_completion_29599 dio_set_defer_completion 0 29599 NULL
117501 +slots_per_page_29601 slots_per_page 0 29601 NULL
117502 +osc_cached_mb_seq_write_29610 osc_cached_mb_seq_write 3 29610 NULL
117503 +nla_get_u16_29624 nla_get_u16 0 29624 NULL
117504 +tx_frag_cache_hit_read_29639 tx_frag_cache_hit_read 3 29639 NULL
117505 +sctp_make_abort_user_29654 sctp_make_abort_user 3 29654 NULL nohasharray
117506 +spmi_controller_alloc_29654 spmi_controller_alloc 2 29654 &sctp_make_abort_user_29654
117507 +sisusb_write_mem_bulk_29678 sisusb_write_mem_bulk 4 29678 NULL
117508 +lustre_posix_acl_xattr_2ext_29693 lustre_posix_acl_xattr_2ext 2 29693 NULL
117509 +posix_acl_from_xattr_29708 posix_acl_from_xattr 3 29708 NULL
117510 +probes_write_29711 probes_write 3 29711 NULL
117511 +read_cis_cache_29735 read_cis_cache 4 29735 NULL
117512 +xfs_new_eof_29737 xfs_new_eof 2 29737 NULL
117513 +std_nic_write_29752 std_nic_write 3 29752 NULL
117514 +tg3_irq_count_29786 tg3_irq_count 0 29786 NULL
117515 +dbAlloc_29794 dbAlloc 0 29794 NULL
117516 +tcp_sendpage_29829 tcp_sendpage 4 29829 NULL
117517 +__probe_kernel_write_29842 __probe_kernel_write 3 29842 NULL
117518 +kvm_read_hva_atomic_29848 kvm_read_hva_atomic 3 29848 NULL
117519 +count_partial_29850 count_partial 0 29850 NULL
117520 +write_file_bool_bmps_29870 write_file_bool_bmps 3 29870 NULL
117521 +ipv6_setsockopt_29871 ipv6_setsockopt 5 29871 NULL
117522 +scsi_end_request_29876 scsi_end_request 3 29876 NULL
117523 +crypto_aead_alignmask_29885 crypto_aead_alignmask 0 29885 NULL
117524 +rtw_cfg80211_indicate_sta_assoc_29897 rtw_cfg80211_indicate_sta_assoc 3 29897 NULL
117525 +lov_ost_pool_extend_29914 lov_ost_pool_extend 2 29914 NULL
117526 +write_file_queue_29922 write_file_queue 3 29922 NULL
117527 +__btrfs_getxattr_29947 __btrfs_getxattr 0 29947 NULL nohasharray
117528 +ipv6_recv_error_29947 ipv6_recv_error 3 29947 &__btrfs_getxattr_29947
117529 +arch_setup_dmar_msi_29992 arch_setup_dmar_msi 0 29992 NULL
117530 +dev_mem_write_30028 dev_mem_write 3 30028 NULL
117531 +alloc_netdev_mqs_30030 alloc_netdev_mqs 1 30030 NULL
117532 +sysfs_add_file_mode_ns_30038 sysfs_add_file_mode_ns 0 30038 NULL
117533 +scsi_vpd_inquiry_30040 scsi_vpd_inquiry 0-4 30040 NULL
117534 +drp_wmove_30043 drp_wmove 4 30043 NULL
117535 +__pci_request_selected_regions_30058 __pci_request_selected_regions 0 30058 NULL
117536 +cxgbi_ddp_reserve_30091 cxgbi_ddp_reserve 4 30091 NULL
117537 +snd_midi_channel_init_set_30092 snd_midi_channel_init_set 1 30092 NULL
117538 +rx_filter_data_filter_read_30098 rx_filter_data_filter_read 3 30098 NULL
117539 +defragment_dma_buffer_30113 defragment_dma_buffer 0 30113 NULL
117540 +spi_async_locked_30117 spi_async_locked 0 30117 NULL
117541 +u_memcpya_30139 u_memcpya 3-2 30139 NULL
117542 +dbg_port_buf_30145 dbg_port_buf 2 30145 NULL
117543 +elfcorehdr_read_30159 elfcorehdr_read 2 30159 NULL
117544 +alloc_switch_ctx_30165 alloc_switch_ctx 2 30165 NULL
117545 +expand_inode_data_30169 expand_inode_data 3-2 30169 NULL
117546 +mempool_create_page_pool_30189 mempool_create_page_pool 1 30189 NULL
117547 +drm_property_create_bitmask_30195 drm_property_create_bitmask 5 30195 NULL
117548 +__genwqe_readq_30197 __genwqe_readq 0 30197 NULL
117549 +snd_pcm_playback_forward_30201 snd_pcm_playback_forward 0-2 30201 NULL
117550 +usblp_ioctl_30203 usblp_ioctl 2 30203 NULL
117551 +read_4k_modal_eeprom_30212 read_4k_modal_eeprom 3 30212 NULL
117552 +SyS_semop_30227 SyS_semop 3 30227 NULL
117553 +bitmap_file_set_bit_30228 bitmap_file_set_bit 2 30228 NULL
117554 +rawv6_recvmsg_30265 rawv6_recvmsg 4 30265 NULL
117555 +isr_pci_pm_read_30271 isr_pci_pm_read 3 30271 NULL nohasharray
117556 +try_break_deleg_30271 try_break_deleg 0 30271 &isr_pci_pm_read_30271
117557 +compat_readv_30273 compat_readv 3 30273 NULL
117558 +skcipher_sendmsg_30290 skcipher_sendmsg 4 30290 NULL
117559 +pipeline_sec_frag_swi_read_30294 pipeline_sec_frag_swi_read 3 30294 NULL
117560 +tcp_sendmsg_30296 tcp_sendmsg 4 30296 NULL
117561 +osc_contention_seconds_seq_write_30305 osc_contention_seconds_seq_write 3 30305 NULL
117562 +ext4_acl_from_disk_30320 ext4_acl_from_disk 2 30320 NULL
117563 +i8254_read_30330 i8254_read 0 30330 NULL
117564 +resource_from_user_30341 resource_from_user 3 30341 NULL
117565 +o2nm_this_node_30342 o2nm_this_node 0 30342 NULL
117566 +kstrtou32_from_user_30361 kstrtou32_from_user 2 30361 NULL
117567 +pagecache_write_begin_30364 pagecache_write_begin 0 30364 NULL
117568 +pvscsi_change_queue_depth_30365 pvscsi_change_queue_depth 2 30365 NULL
117569 +C_SYSC_readv_30369 C_SYSC_readv 3 30369 NULL
117570 +blkdev_issue_zeroout_30392 blkdev_issue_zeroout 3 30392 NULL
117571 +c4iw_init_resource_30393 c4iw_init_resource 2-3 30393 NULL
117572 +get_kernel_pages_30397 get_kernel_pages 0 30397 NULL
117573 +vb2_fop_write_30420 vb2_fop_write 3 30420 NULL
117574 +tx_tx_template_prepared_read_30424 tx_tx_template_prepared_read 3 30424 NULL
117575 +lstcon_session_info_30425 lstcon_session_info 6 30425 NULL
117576 +enable_write_30456 enable_write 3 30456 NULL
117577 +tx_tx_template_programmed_read_30461 tx_tx_template_programmed_read 3 30461 NULL
117578 +urandom_read_30462 urandom_read 3 30462 NULL
117579 +zoran_ioctl_30465 zoran_ioctl 2 30465 NULL
117580 +i2c_ctrl_read_30467 i2c_ctrl_read 0 30467 NULL
117581 +adu_write_30487 adu_write 3 30487 NULL
117582 +dtim_interval_write_30489 dtim_interval_write 3 30489 NULL
117583 +batadv_send_tt_request_30493 batadv_send_tt_request 5 30493 NULL
117584 +__send_duplicate_bios_30498 __send_duplicate_bios 4 30498 NULL
117585 +memblock_virt_alloc_node_30515 memblock_virt_alloc_node 1 30515 NULL
117586 +dwc3_testmode_write_30516 dwc3_testmode_write 3 30516 NULL
117587 +debug_debug2_read_30526 debug_debug2_read 3 30526 NULL
117588 +ixgbevf_acquire_msix_vectors_30559 ixgbevf_acquire_msix_vectors 2 30559 NULL
117589 +disk_expand_part_tbl_30561 disk_expand_part_tbl 2 30561 NULL
117590 +set_le_30581 set_le 4 30581 NULL
117591 +blk_init_tags_30592 blk_init_tags 1 30592 NULL
117592 +sgl_map_user_pages_30610 sgl_map_user_pages 2 30610 NULL
117593 +macvtap_sendmsg_30629 macvtap_sendmsg 4 30629 NULL
117594 +ieee80211_if_read_dot11MeshAwakeWindowDuration_30631 ieee80211_if_read_dot11MeshAwakeWindowDuration 3 30631 NULL
117595 +compat_raw_setsockopt_30634 compat_raw_setsockopt 5 30634 NULL
117596 +mlx5_ib_alloc_fast_reg_page_list_30638 mlx5_ib_alloc_fast_reg_page_list 2 30638 NULL
117597 +SyS_listxattr_30647 SyS_listxattr 3 30647 NULL
117598 +jffs2_flash_read_30667 jffs2_flash_read 0 30667 NULL
117599 +ni_ai_fifo_read_30681 ni_ai_fifo_read 3 30681 NULL
117600 +sst_hsw_get_dsp_position_30691 sst_hsw_get_dsp_position 0 30691 NULL
117601 +dccp_setsockopt_ccid_30701 dccp_setsockopt_ccid 4 30701 NULL
117602 +lbs_wrbbp_write_30712 lbs_wrbbp_write 3 30712 NULL
117603 +lbs_debugfs_read_30721 lbs_debugfs_read 3 30721 NULL
117604 +snd_nm256_playback_silence_30727 snd_nm256_playback_silence 3-4 30727 NULL
117605 +snapshot_status_30744 snapshot_status 5 30744 NULL
117606 +fuse_conn_limit_write_30777 fuse_conn_limit_write 3 30777 NULL
117607 +__bio_alloc_30787 __bio_alloc 3 30787 NULL
117608 +smk_read_doi_30813 smk_read_doi 3 30813 NULL
117609 +get_kobj_path_length_30831 get_kobj_path_length 0 30831 NULL
117610 +ath10k_write_fw_dbglog_30835 ath10k_write_fw_dbglog 3 30835 NULL
117611 +of_gpio_named_count_30841 of_gpio_named_count 0 30841 NULL
117612 +sctp_setsockopt_auth_chunk_30843 sctp_setsockopt_auth_chunk 3 30843 NULL
117613 +wd_autoreset_write_30862 wd_autoreset_write 3 30862 NULL
117614 +ieee80211_if_fmt_dropped_frames_no_route_30884 ieee80211_if_fmt_dropped_frames_no_route 3 30884 NULL
117615 +pn_recvmsg_30887 pn_recvmsg 4 30887 NULL
117616 +usnic_debugfs_buildinfo_read_30928 usnic_debugfs_buildinfo_read 3 30928 NULL
117617 +sctp_setsockopt_rtoinfo_30941 sctp_setsockopt_rtoinfo 3 30941 NULL
117618 +tty_insert_flip_string_flags_30969 tty_insert_flip_string_flags 4 30969 NULL
117619 +huge_page_mask_30981 huge_page_mask 0 30981 NULL
117620 +read_file_bt_ant_diversity_30983 read_file_bt_ant_diversity 3 30983 NULL
117621 +lbs_host_sleep_read_31013 lbs_host_sleep_read 3 31013 NULL
117622 +ima_eventsig_init_31022 ima_eventsig_init 5 31022 NULL
117623 +template_fmt_size_31033 template_fmt_size 0 31033 NULL
117624 +do_setup_msi_irqs_31043 do_setup_msi_irqs 2 31043 NULL
117625 +stride_pg_count_31053 stride_pg_count 0-3-2-1-4-5 31053 NULL
117626 +lbs_failcount_read_31063 lbs_failcount_read 3 31063 NULL
117627 +sctp_setsockopt_context_31091 sctp_setsockopt_context 3 31091 NULL
117628 +proc_gid_map_write_31093 proc_gid_map_write 3 31093 NULL
117629 +depth_read_31112 depth_read 3 31112 NULL
117630 +hash_ipportnet6_expire_31118 hash_ipportnet6_expire 4 31118 NULL
117631 +kimage_normal_alloc_31140 kimage_normal_alloc 3 31140 NULL
117632 +size_inside_page_31141 size_inside_page 0 31141 NULL
117633 +w9966_v4l_read_31148 w9966_v4l_read 3 31148 NULL
117634 +ch_do_scsi_31171 ch_do_scsi 4 31171 NULL
117635 +r592_read_fifo_pio_31198 r592_read_fifo_pio 3 31198 NULL
117636 +mtdchar_readoob_31200 mtdchar_readoob 4 31200 NULL
117637 +__btrfs_free_reserved_extent_31207 __btrfs_free_reserved_extent 2 31207 NULL
117638 +cpumask_weight_31215 cpumask_weight 0 31215 NULL
117639 +__read_reg_31216 __read_reg 0 31216 NULL
117640 +atm_get_addr_31221 atm_get_addr 3 31221 NULL
117641 +tcp_recvmsg_31238 tcp_recvmsg 4 31238 NULL
117642 +cyy_readb_31240 cyy_readb 0 31240 NULL
117643 +_create_sg_bios_31244 _create_sg_bios 4 31244 NULL
117644 +ieee80211_if_read_last_beacon_31257 ieee80211_if_read_last_beacon 3 31257 NULL
117645 +hash_netportnet4_expire_31290 hash_netportnet4_expire 4 31290 NULL
117646 +uvc_simplify_fraction_31303 uvc_simplify_fraction 3 31303 NULL
117647 +sisusbcon_scroll_31315 sisusbcon_scroll 5-2-3 31315 NULL
117648 +command_file_write_31318 command_file_write 3 31318 NULL
117649 +hwerr_crcbits_31334 hwerr_crcbits 4 31334 NULL
117650 +_regmap_raw_multi_reg_write_31336 _regmap_raw_multi_reg_write 3 31336 NULL
117651 +em28xx_init_usb_xfer_31337 em28xx_init_usb_xfer 4-6 31337 NULL
117652 +outlen_write_31358 outlen_write 3 31358 NULL
117653 +ieee80211_rx_mgmt_auth_31366 ieee80211_rx_mgmt_auth 3 31366 NULL
117654 +xprt_rdma_allocate_31372 xprt_rdma_allocate 2 31372 NULL
117655 +vb2_vmalloc_get_userptr_31374 vb2_vmalloc_get_userptr 3-2 31374 NULL
117656 +trace_parser_get_init_31379 trace_parser_get_init 2 31379 NULL
117657 +inb_31388 inb 0 31388 NULL
117658 +key_ifindex_read_31411 key_ifindex_read 3 31411 NULL
117659 +_sp2d_max_pg_31422 _sp2d_max_pg 0 31422 NULL
117660 +TSS_checkhmac1_31429 TSS_checkhmac1 5 31429 NULL
117661 +snd_aw2_saa7146_get_hw_ptr_capture_31431 snd_aw2_saa7146_get_hw_ptr_capture 0 31431 NULL
117662 +transport_alloc_session_tags_31449 transport_alloc_session_tags 2-3 31449 NULL
117663 +opera1_xilinx_rw_31453 opera1_xilinx_rw 5 31453 NULL
117664 +xfs_btree_get_numrecs_31477 xfs_btree_get_numrecs 0 31477 NULL
117665 +alg_setkey_31485 alg_setkey 3 31485 NULL
117666 +rds_message_map_pages_31487 rds_message_map_pages 2 31487 NULL
117667 +qsfp_2_read_31491 qsfp_2_read 3 31491 NULL
117668 +__alloc_bootmem_31498 __alloc_bootmem 1 31498 NULL
117669 +hidraw_write_31536 hidraw_write 3 31536 NULL
117670 +usbvision_read_31555 usbvision_read 3 31555 NULL
117671 +tx_frag_tkip_called_read_31575 tx_frag_tkip_called_read 3 31575 NULL
117672 +get_max_inline_xattr_value_size_31578 get_max_inline_xattr_value_size 0 31578 NULL
117673 +osst_write_31581 osst_write 3 31581 NULL
117674 +snd_compr_get_avail_31584 snd_compr_get_avail 0 31584 NULL
117675 +iwl_dbgfs_ucode_tx_stats_read_31611 iwl_dbgfs_ucode_tx_stats_read 3 31611 NULL
117676 +arvo_sysfs_read_31617 arvo_sysfs_read 6 31617 NULL nohasharray
117677 +memblock_virt_alloc_nopanic_31617 memblock_virt_alloc_nopanic 1 31617 &arvo_sysfs_read_31617
117678 +usnic_ib_dump_vf_31623 usnic_ib_dump_vf 3 31623 NULL
117679 +videobuf_read_one_31637 videobuf_read_one 3 31637 NULL
117680 +pod_alloc_sysex_buffer_31651 pod_alloc_sysex_buffer 3 31651 NULL
117681 +xfer_secondary_pool_31661 xfer_secondary_pool 2 31661 NULL
117682 +__lgread_31668 __lgread 4 31668 NULL
117683 +copy_from_user_nmi_31672 copy_from_user_nmi 3-0 31672 NULL
117684 +forced_ps_read_31685 forced_ps_read 3 31685 NULL
117685 +fst_recover_rx_error_31687 fst_recover_rx_error 3 31687 NULL
117686 +rs_pretty_print_rate_31727 rs_pretty_print_rate 0 31727 NULL
117687 +lu_buf_check_and_grow_31735 lu_buf_check_and_grow 2 31735 NULL nohasharray
117688 +utf16s_to_utf8s_31735 utf16s_to_utf8s 0 31735 &lu_buf_check_and_grow_31735
117689 +shmem_pwrite_slow_31741 shmem_pwrite_slow 3-2 31741 NULL
117690 +input_abs_get_max_31742 input_abs_get_max 0 31742 NULL nohasharray
117691 +NCR_700_change_queue_depth_31742 NCR_700_change_queue_depth 2 31742 &input_abs_get_max_31742
117692 +bcm_char_read_31750 bcm_char_read 3 31750 NULL
117693 +snd_seq_device_new_31753 snd_seq_device_new 4 31753 NULL
117694 +SyS_lsetxattr_31766 SyS_lsetxattr 4 31766 NULL
117695 +osync_buffers_list_31789 osync_buffers_list 0 31789 NULL
117696 +usblp_cache_device_id_string_31790 usblp_cache_device_id_string 0 31790 NULL
117697 +ecryptfs_send_message_locked_31801 ecryptfs_send_message_locked 2 31801 NULL
117698 +isr_rx_procs_read_31804 isr_rx_procs_read 3 31804 NULL
117699 +data_write_31805 data_write 3 31805 NULL
117700 +SyS_msgsnd_31814 SyS_msgsnd 3 31814 NULL
117701 +strnlen_user_31815 strnlen_user 0-2 31815 NULL
117702 +sta_last_signal_read_31818 sta_last_signal_read 3 31818 NULL
117703 +clone_bio_31854 clone_bio 4-3 31854 NULL
117704 +SyS_ppoll_31855 SyS_ppoll 2 31855 NULL
117705 +iwl_dbgfs_disable_ht40_write_31876 iwl_dbgfs_disable_ht40_write 3 31876 NULL
117706 +drm_mode_crtc_set_gamma_size_31881 drm_mode_crtc_set_gamma_size 2 31881 NULL
117707 +ddb_output_write_31902 ddb_output_write 3-0 31902 NULL
117708 +xattr_permission_31907 xattr_permission 0 31907 NULL
117709 +lu_buf_realloc_31915 lu_buf_realloc 2 31915 NULL
117710 +new_dir_31919 new_dir 3 31919 NULL
117711 +kmem_alloc_31920 kmem_alloc 1 31920 NULL
117712 +era_status_31934 era_status 5 31934 NULL
117713 +SYSC_sethostname_31940 SYSC_sethostname 2 31940 NULL
117714 +read_mem_31942 read_mem 3 31942 NULL nohasharray
117715 +iov_iter_copy_from_user_31942 iov_iter_copy_from_user 4-0 31942 &read_mem_31942
117716 +ext4_zero_range_31944 ext4_zero_range 3-2 31944 NULL
117717 +vb2_write_31948 vb2_write 3 31948 NULL
117718 +pvr2_ctrl_get_valname_31951 pvr2_ctrl_get_valname 4 31951 NULL
117719 +regcache_rbtree_sync_31964 regcache_rbtree_sync 2 31964 NULL
117720 +iwl_rx_packet_payload_len_31965 iwl_rx_packet_payload_len 0 31965 NULL
117721 +copy_from_user_toio_31966 copy_from_user_toio 3 31966 NULL
117722 +iblock_execute_rw_31982 iblock_execute_rw 3 31982 NULL nohasharray
117723 +vx_read_status_31982 vx_read_status 0 31982 &iblock_execute_rw_31982
117724 +find_next_zero_bit_31990 find_next_zero_bit 0 31990 NULL
117725 +lustre_acl_xattr_merge2posix_31992 lustre_acl_xattr_merge2posix 2 31992 NULL
117726 +sysfs_create_file_31996 sysfs_create_file 0 31996 NULL
117727 +calc_hmac_32010 calc_hmac 3 32010 NULL
117728 +aead_len_32021 aead_len 0 32021 NULL nohasharray
117729 +aer_init_32021 aer_init 0 32021 &aead_len_32021
117730 +stk_read_32038 stk_read 3 32038 NULL
117731 +SYSC_llistxattr_32061 SYSC_llistxattr 3 32061 NULL
117732 +proc_scsi_devinfo_write_32064 proc_scsi_devinfo_write 3 32064 NULL
117733 +cow_file_range_inline_32091 cow_file_range_inline 3 32091 NULL
117734 +bio_alloc_32095 bio_alloc 2 32095 NULL
117735 +ath6kl_fwlog_read_32101 ath6kl_fwlog_read 3 32101 NULL
117736 +disk_status_32120 disk_status 4 32120 NULL
117737 +kobject_add_internal_32133 kobject_add_internal 0 32133 NULL
117738 +venus_link_32165 venus_link 5 32165 NULL
117739 +do_writepages_32173 do_writepages 0 32173 NULL
117740 +del_ptr_32197 del_ptr 4 32197 NULL
117741 +wusb_ccm_mac_32199 wusb_ccm_mac 7 32199 NULL
117742 +riva_get_cmap_len_32218 riva_get_cmap_len 0 32218 NULL
117743 +caif_seqpkt_recvmsg_32241 caif_seqpkt_recvmsg 4 32241 NULL
117744 +lbs_lowrssi_read_32242 lbs_lowrssi_read 3 32242 NULL
117745 +ocfs2_xattr_find_entry_32260 ocfs2_xattr_find_entry 0 32260 NULL
117746 +kvm_set_spte_hva_32312 kvm_set_spte_hva 2 32312 NULL
117747 +cas_calc_tabort_32316 cas_calc_tabort 0 32316 NULL
117748 +SyS_select_32319 SyS_select 1 32319 NULL
117749 +nouveau_bar_create__32332 nouveau_bar_create_ 4 32332 NULL
117750 +nl80211_send_mlme_event_32337 nl80211_send_mlme_event 4 32337 NULL
117751 +t4_alloc_mem_32342 t4_alloc_mem 1 32342 NULL
117752 +dispatch_ioctl_32357 dispatch_ioctl 2 32357 NULL nohasharray
117753 +rx_streaming_always_write_32357 rx_streaming_always_write 3 32357 &dispatch_ioctl_32357
117754 +sel_read_initcon_32362 sel_read_initcon 3 32362 NULL
117755 +ll_setxattr_common_32398 ll_setxattr_common 4 32398 NULL
117756 +xfs_iext_add_indirect_multi_32400 xfs_iext_add_indirect_multi 3 32400 NULL
117757 +vmci_qp_alloc_32405 vmci_qp_alloc 5-3 32405 NULL
117758 +snd_pcm_sync_ptr_32461 snd_pcm_sync_ptr 0 32461 NULL
117759 +cache_status_32462 cache_status 5 32462 NULL
117760 +fill_readbuf_32464 fill_readbuf 3 32464 NULL
117761 +ide_driver_proc_write_32493 ide_driver_proc_write 3 32493 NULL
117762 +bypass_pwoff_write_32499 bypass_pwoff_write 3 32499 NULL
117763 +mdc_pinger_recov_seq_write_32510 mdc_pinger_recov_seq_write 3 32510 NULL
117764 +ctrl_std_val_to_sym_32516 ctrl_std_val_to_sym 5 32516 NULL
117765 +disconnect_32521 disconnect 4 32521 NULL
117766 +qsfp_read_32522 qsfp_read 0-2-4 32522 NULL
117767 +ilo_read_32531 ilo_read 3 32531 NULL
117768 +ieee80211_if_read_estab_plinks_32533 ieee80211_if_read_estab_plinks 3 32533 NULL
117769 +format_devstat_counter_32550 format_devstat_counter 3 32550 NULL
117770 +aes_encrypt_fail_read_32562 aes_encrypt_fail_read 3 32562 NULL
117771 +osc_iocontrol_32565 osc_iocontrol 3 32565 NULL
117772 +mem_swapout_entry_32586 mem_swapout_entry 3 32586 NULL
117773 +pipeline_tcp_tx_stat_fifo_int_read_32589 pipeline_tcp_tx_stat_fifo_int_read 3 32589 NULL
117774 +read_file_beacon_32595 read_file_beacon 3 32595 NULL
117775 +ieee80211_if_read_dropped_frames_congestion_32603 ieee80211_if_read_dropped_frames_congestion 3 32603 NULL
117776 +__pci_request_region_32618 __pci_request_region 0 32618 NULL
117777 +irda_recvmsg_dgram_32631 irda_recvmsg_dgram 4 32631 NULL
117778 +cfg80211_roamed_32632 cfg80211_roamed 5-7 32632 NULL
117779 +kvmalloc_32646 kvmalloc 1 32646 NULL
117780 +ib_sg_dma_len_32649 ib_sg_dma_len 0 32649 NULL
117781 +generic_readlink_32654 generic_readlink 3 32654 NULL
117782 +move_addr_to_kernel_32673 move_addr_to_kernel 2 32673 NULL
117783 +compat_SyS_preadv_32679 compat_SyS_preadv 3 32679 NULL
117784 +jfs_readpages_32702 jfs_readpages 4 32702 NULL
117785 +rt2x00debug_read_queue_dump_32712 rt2x00debug_read_queue_dump 3 32712 NULL
117786 +megasas_change_queue_depth_32747 megasas_change_queue_depth 2 32747 NULL
117787 +stats_read_ul_32751 stats_read_ul 3 32751 NULL
117788 +vmci_transport_dgram_dequeue_32775 vmci_transport_dgram_dequeue 4 32775 NULL
117789 +sctp_tsnmap_grow_32784 sctp_tsnmap_grow 2 32784 NULL
117790 +rproc_name_read_32805 rproc_name_read 3 32805 NULL
117791 +sta_tx_latency_stat_read_32862 sta_tx_latency_stat_read 3 32862 NULL
117792 +new_tape_buffer_32866 new_tape_buffer 2 32866 NULL
117793 +ath6kl_usb_submit_ctrl_in_32880 ath6kl_usb_submit_ctrl_in 6 32880 NULL nohasharray
117794 +cifs_writedata_alloc_32880 cifs_writedata_alloc 1 32880 &ath6kl_usb_submit_ctrl_in_32880
117795 +vp702x_usb_inout_cmd_32884 vp702x_usb_inout_cmd 4-6 32884 NULL
117796 +tipc_link_iovec_xmit_fast_32913 tipc_link_iovec_xmit_fast 3 32913 NULL nohasharray
117797 +il_dbgfs_tx_stats_read_32913 il_dbgfs_tx_stats_read 3 32913 &tipc_link_iovec_xmit_fast_32913
117798 +zlib_inflate_workspacesize_32927 zlib_inflate_workspacesize 0 32927 NULL
117799 +rmap_recycle_32938 rmap_recycle 3 32938 NULL
117800 +compat_filldir_32999 compat_filldir 3 32999 NULL
117801 +SyS_syslog_33007 SyS_syslog 3 33007 NULL
117802 +br_multicast_set_hash_max_33012 br_multicast_set_hash_max 2 33012 NULL
117803 +write_file_bt_ant_diversity_33019 write_file_bt_ant_diversity 3 33019 NULL
117804 +snd_pcm_prepare_33036 snd_pcm_prepare 0 33036 NULL
117805 +mic_virtio_copy_to_user_33048 mic_virtio_copy_to_user 3 33048 NULL
117806 +SYSC_lgetxattr_33049 SYSC_lgetxattr 4 33049 NULL
117807 +pipeline_dec_packet_in_fifo_full_read_33052 pipeline_dec_packet_in_fifo_full_read 3 33052 NULL
117808 +ebt_compat_match_offset_33053 ebt_compat_match_offset 0-2 33053 NULL
117809 +bitmap_resize_33054 bitmap_resize 2 33054 NULL
117810 +stats_dot11RTSSuccessCount_read_33065 stats_dot11RTSSuccessCount_read 3 33065 NULL
117811 +sel_read_checkreqprot_33068 sel_read_checkreqprot 3 33068 NULL
117812 +alloc_tio_33077 alloc_tio 3 33077 NULL
117813 +acl_permission_check_33083 acl_permission_check 0 33083 NULL
117814 +fb_sys_write_33130 fb_sys_write 3 33130 NULL
117815 +notify_change_33143 notify_change 0 33143 NULL
117816 +SyS_poll_33152 SyS_poll 2 33152 NULL
117817 +_pci_add_cap_save_buffer_33153 _pci_add_cap_save_buffer 4 33153 NULL
117818 +debug_debug6_read_33168 debug_debug6_read 3 33168 NULL
117819 +dataflash_read_fact_otp_33204 dataflash_read_fact_otp 3-2 33204 NULL
117820 +pp_read_33210 pp_read 3 33210 NULL
117821 +xfs_file_aio_write_33234 xfs_file_aio_write 4 33234 NULL
117822 +snd_pcm_plug_client_size_33267 snd_pcm_plug_client_size 0-2 33267 NULL
117823 +cachefiles_cook_key_33274 cachefiles_cook_key 2 33274 NULL
117824 +sync_pt_create_33282 sync_pt_create 2 33282 NULL
117825 +mcs7830_get_reg_33308 mcs7830_get_reg 3 33308 NULL
117826 +isku_sysfs_read_keys_easyzone_33318 isku_sysfs_read_keys_easyzone 6 33318 NULL
117827 +vx_send_irq_dsp_33329 vx_send_irq_dsp 0 33329 NULL
117828 +joydev_ioctl_33343 joydev_ioctl 2 33343 NULL
117829 +lov_stripesize_seq_write_33353 lov_stripesize_seq_write 3 33353 NULL
117830 +create_xattr_datum_33356 create_xattr_datum 5 33356 NULL nohasharray
117831 +irq_pkt_threshold_read_33356 irq_pkt_threshold_read 3 33356 &create_xattr_datum_33356
117832 +pvscsi_allocate_sg_33357 pvscsi_allocate_sg 0 33357 NULL
117833 +read_file_regidx_33370 read_file_regidx 3 33370 NULL
117834 +ieee80211_if_read_dropped_frames_no_route_33383 ieee80211_if_read_dropped_frames_no_route 3 33383 NULL
117835 +scsi_varlen_cdb_length_33385 scsi_varlen_cdb_length 0 33385 NULL
117836 +nvc0_ram_create__33391 nvc0_ram_create_ 5 33391 NULL
117837 +ocfs2_allocate_unwritten_extents_33394 ocfs2_allocate_unwritten_extents 2-3 33394 NULL
117838 +cfs_trace_copyin_string_33396 cfs_trace_copyin_string 4 33396 NULL
117839 +snd_pcm_capture_ioctl1_33408 snd_pcm_capture_ioctl1 0 33408 NULL
117840 +hash_netiface6_expire_33421 hash_netiface6_expire 4 33421 NULL
117841 +dis_tap_write_33426 dis_tap_write 3 33426 NULL
117842 +message_stats_list_33440 message_stats_list 5 33440 NULL
117843 +ovs_vport_alloc_33475 ovs_vport_alloc 1 33475 NULL
117844 +create_entry_33479 create_entry 2 33479 NULL
117845 +ip_setsockopt_33487 ip_setsockopt 5 33487 NULL
117846 +res_counter_read_33499 res_counter_read 4 33499 NULL
117847 +hash_netnet4_expire_33500 hash_netnet4_expire 4 33500 NULL
117848 +fb_read_33506 fb_read 3 33506 NULL
117849 +musb_test_mode_write_33518 musb_test_mode_write 3 33518 NULL
117850 +ahash_setkey_unaligned_33521 ahash_setkey_unaligned 3 33521 NULL
117851 +nes_alloc_fast_reg_page_list_33523 nes_alloc_fast_reg_page_list 2 33523 NULL
117852 +aggr_size_rx_size_read_33526 aggr_size_rx_size_read 3 33526 NULL
117853 +tomoyo_read_self_33539 tomoyo_read_self 3 33539 NULL nohasharray
117854 +osc_max_rpcs_in_flight_seq_write_33539 osc_max_rpcs_in_flight_seq_write 3 33539 &tomoyo_read_self_33539
117855 +count_subheaders_33591 count_subheaders 0 33591 NULL
117856 +scsi_execute_33596 scsi_execute 5 33596 NULL
117857 +comedi_buf_write_n_allocated_33604 comedi_buf_write_n_allocated 0 33604 NULL
117858 +xt_compat_target_offset_33608 xt_compat_target_offset 0 33608 NULL
117859 +usb_gstrings_attach_33615 usb_gstrings_attach 3 33615 NULL nohasharray
117860 +il_dbgfs_qos_read_33615 il_dbgfs_qos_read 3 33615 &usb_gstrings_attach_33615
117861 +stride_page_count_33641 stride_page_count 2 33641 NULL
117862 +irq_blk_threshold_read_33666 irq_blk_threshold_read 3 33666 NULL
117863 +inw_p_33668 inw_p 0 33668 NULL
117864 +arp_hdr_len_33671 arp_hdr_len 0 33671 NULL
117865 +i2c_hid_alloc_buffers_33673 i2c_hid_alloc_buffers 2 33673 NULL
117866 +submit_one_bio_33683 submit_one_bio 0 33683 NULL
117867 +nv50_disp_dmac_create__33696 nv50_disp_dmac_create_ 6 33696 NULL
117868 +netlink_sendmsg_33708 netlink_sendmsg 4 33708 NULL
117869 +tipc_link_stats_33716 tipc_link_stats 3 33716 NULL
117870 +pvr2_stream_buffer_count_33719 pvr2_stream_buffer_count 2 33719 NULL
117871 +write_file_spectral_count_33723 write_file_spectral_count 3 33723 NULL
117872 +read_file_node_recv_33729 read_file_node_recv 3 33729 NULL
117873 +rtw_cbuf_alloc23a_33740 rtw_cbuf_alloc23a 1 33740 NULL
117874 +vifs_state_read_33762 vifs_state_read 3 33762 NULL
117875 +hashtab_create_33769 hashtab_create 3 33769 NULL
117876 +i8042_create_aux_port_33777 i8042_create_aux_port 0 33777 NULL
117877 +if_sdio_read_rx_len_33800 if_sdio_read_rx_len 0 33800 NULL
117878 +filter_write_33819 filter_write 3 33819 NULL
117879 +sep_create_msgarea_context_33829 sep_create_msgarea_context 4 33829 NULL
117880 +scrub_setup_recheck_block_33831 scrub_setup_recheck_block 5-4 33831 NULL
117881 +ext4_journal_extend_33835 ext4_journal_extend 2 33835 NULL
117882 +snd_pcm_action_nonatomic_33844 snd_pcm_action_nonatomic 0 33844 NULL
117883 +oz_cdev_write_33852 oz_cdev_write 3 33852 NULL
117884 +get_user_pages_33908 get_user_pages 0 33908 NULL
117885 +sg_nents_33909 sg_nents 0 33909 NULL
117886 +ath6kl_roam_mode_write_33912 ath6kl_roam_mode_write 3 33912 NULL
117887 +queue_logical_block_size_33918 queue_logical_block_size 0 33918 NULL
117888 +sel_read_avc_cache_threshold_33942 sel_read_avc_cache_threshold 3 33942 NULL
117889 +lpfc_idiag_ctlacc_read_33943 lpfc_idiag_ctlacc_read 3 33943 NULL
117890 +read_file_tgt_rx_stats_33944 read_file_tgt_rx_stats 3 33944 NULL
117891 +__proc_dump_kernel_33954 __proc_dump_kernel 5 33954 NULL
117892 +btrfs_delalloc_reserve_metadata_33963 btrfs_delalloc_reserve_metadata 0 33963 NULL
117893 +vga_switcheroo_debugfs_write_33984 vga_switcheroo_debugfs_write 3 33984 NULL
117894 +lbs_lowrssi_write_34025 lbs_lowrssi_write 3 34025 NULL
117895 +ppp_write_34034 ppp_write 3 34034 NULL
117896 +tty_insert_flip_string_34042 tty_insert_flip_string 3-0 34042 NULL
117897 +calc_linear_pos_34067 calc_linear_pos 0-4 34067 NULL
117898 +memcg_update_all_caches_34068 memcg_update_all_caches 1 34068 NULL
117899 +pipeline_pipeline_fifo_full_read_34095 pipeline_pipeline_fifo_full_read 3 34095 NULL
117900 +__irq_domain_add_34101 __irq_domain_add 2 34101 NULL
117901 +proc_scsi_host_write_34107 proc_scsi_host_write 3 34107 NULL
117902 +islpci_mgt_transmit_34133 islpci_mgt_transmit 5 34133 NULL
117903 +ttm_dma_page_pool_free_34135 ttm_dma_page_pool_free 2-0 34135 NULL
117904 +ixgbe_dbg_netdev_ops_write_34141 ixgbe_dbg_netdev_ops_write 3 34141 NULL
117905 +shmem_pread_fast_34147 shmem_pread_fast 3 34147 NULL
117906 +skb_to_sgvec_34171 skb_to_sgvec 0 34171 NULL
117907 +rsi_debug_zone_write_34206 rsi_debug_zone_write 3 34206 NULL
117908 +ext4_da_write_begin_34215 ext4_da_write_begin 3-4 34215 NULL
117909 +bl_pipe_downcall_34264 bl_pipe_downcall 3 34264 NULL
117910 +device_private_init_34279 device_private_init 0 34279 NULL
117911 +ext4_get_groups_count_34324 ext4_get_groups_count 0 34324 NULL
117912 +pcpu_need_to_extend_34326 pcpu_need_to_extend 0 34326 NULL nohasharray
117913 +iov_iter_single_seg_count_34326 iov_iter_single_seg_count 0 34326 &pcpu_need_to_extend_34326
117914 +crypto_ablkcipher_ivsize_34363 crypto_ablkcipher_ivsize 0 34363 NULL nohasharray
117915 +sync_page_io_34363 sync_page_io 3 34363 &crypto_ablkcipher_ivsize_34363
117916 +rngapi_reset_34366 rngapi_reset 3 34366 NULL
117917 +_iwl_dbgfs_low_latency_write_34378 _iwl_dbgfs_low_latency_write 3 34378 NULL nohasharray
117918 +ea_read_34378 ea_read 0 34378 &_iwl_dbgfs_low_latency_write_34378
117919 +fuse_send_read_34379 fuse_send_read 4 34379 NULL
117920 +av7110_vbi_write_34384 av7110_vbi_write 3 34384 NULL
117921 +usbvision_v4l2_read_34386 usbvision_v4l2_read 3 34386 NULL
117922 +read_rbu_image_type_34387 read_rbu_image_type 6 34387 NULL
117923 +iwl_calib_set_34400 iwl_calib_set 3 34400 NULL nohasharray
117924 +ivtv_read_pos_34400 ivtv_read_pos 3 34400 &iwl_calib_set_34400
117925 +wd_exp_mode_write_34407 wd_exp_mode_write 3 34407 NULL
117926 +nl80211_send_disassoc_34424 nl80211_send_disassoc 4 34424 NULL
117927 +__extent_read_full_page_34437 __extent_read_full_page 0 34437 NULL
117928 +usbtest_alloc_urb_34446 usbtest_alloc_urb 3-5 34446 NULL
117929 +mwifiex_regrdwr_read_34472 mwifiex_regrdwr_read 3 34472 NULL
117930 +skcipher_sndbuf_34476 skcipher_sndbuf 0 34476 NULL
117931 +i2o_parm_field_get_34477 i2o_parm_field_get 5 34477 NULL
117932 +security_inode_permission_34488 security_inode_permission 0 34488 NULL
117933 +SyS_pwritev_34494 SyS_pwritev 3 34494 NULL
117934 +qp_alloc_res_34496 qp_alloc_res 5 34496 NULL
117935 +lu_buf_check_and_alloc_34505 lu_buf_check_and_alloc 2 34505 NULL
117936 +tracing_stats_read_34537 tracing_stats_read 3 34537 NULL nohasharray
117937 +ext4_fallocate_34537 ext4_fallocate 4-3 34537 &tracing_stats_read_34537
117938 +hugetlbfs_read_actor_34547 hugetlbfs_read_actor 2-5-4-0 34547 NULL
117939 +dbBackSplit_34561 dbBackSplit 0 34561 NULL
117940 +alloc_ieee80211_rsl_34564 alloc_ieee80211_rsl 1 34564 NULL nohasharray
117941 +self_check_peb_ec_hdr_34564 self_check_peb_ec_hdr 0 34564 &alloc_ieee80211_rsl_34564
117942 +lov_stripecount_seq_write_34582 lov_stripecount_seq_write 3 34582 NULL
117943 +init_send_hfcd_34586 init_send_hfcd 1 34586 NULL
117944 +inet6_ifla6_size_34591 inet6_ifla6_size 0 34591 NULL
117945 +ceph_msgpool_init_34599 ceph_msgpool_init 4 34599 NULL nohasharray
117946 +cw1200_queue_init_34599 cw1200_queue_init 4 34599 &ceph_msgpool_init_34599
117947 +bio_integrity_bytes_34602 bio_integrity_bytes 2 34602 NULL
117948 +__jffs2_ref_totlen_34609 __jffs2_ref_totlen 0 34609 NULL nohasharray
117949 +mtd_write_34609 mtd_write 0 34609 &__jffs2_ref_totlen_34609
117950 +__cfg80211_disconnected_34622 __cfg80211_disconnected 3 34622 NULL
117951 +cnic_alloc_dma_34641 cnic_alloc_dma 3 34641 NULL
117952 +kvm_set_spte_hva_34671 kvm_set_spte_hva 2 34671 NULL
117953 +sleep_auth_write_34676 sleep_auth_write 3 34676 NULL
117954 +isr_fiqs_read_34687 isr_fiqs_read 3 34687 NULL
117955 +batadv_tvlv_realloc_packet_buff_34688 batadv_tvlv_realloc_packet_buff 3-4 34688 NULL
117956 +port_print_34704 port_print 3 34704 NULL
117957 +ieee80211_if_read_num_sta_ps_34722 ieee80211_if_read_num_sta_ps 3 34722 NULL
117958 +platform_list_read_file_34734 platform_list_read_file 3 34734 NULL
117959 +reg_w_ixbuf_34736 reg_w_ixbuf 4 34736 NULL
117960 +lsm_alloc_plain_34755 lsm_alloc_plain 1 34755 NULL
117961 +bootmode_store_34762 bootmode_store 4 34762 NULL
117962 +device_add_34766 device_add 0 34766 NULL
117963 +qib_cdev_init_34778 qib_cdev_init 1 34778 NULL
117964 +SYSC_keyctl_34800 SYSC_keyctl 4 34800 NULL
117965 +can_nocow_extent_34801 can_nocow_extent 2 34801 NULL
117966 +drbd_get_max_capacity_34804 drbd_get_max_capacity 0 34804 NULL
117967 +ll_setxattr_34806 ll_setxattr 4 34806 NULL
117968 +file_page_index_34820 file_page_index 0-2 34820 NULL
117969 +bio_segments_34832 bio_segments 0 34832 NULL
117970 +b43_debugfs_write_34838 b43_debugfs_write 3 34838 NULL
117971 +nl_portid_hash_zalloc_34843 nl_portid_hash_zalloc 1 34843 NULL
117972 +acpi_system_write_wakeup_device_34853 acpi_system_write_wakeup_device 3 34853 NULL
117973 +usb_serial_generic_prepare_write_buffer_34857 usb_serial_generic_prepare_write_buffer 3 34857 NULL
117974 +ieee80211_if_read_txpower_34871 ieee80211_if_read_txpower 3 34871 NULL
117975 +msg_print_text_34889 msg_print_text 0 34889 NULL
117976 +ieee80211_if_write_34894 ieee80211_if_write 3 34894 NULL
117977 +si476x_radio_read_rsq_primary_blob_34916 si476x_radio_read_rsq_primary_blob 3 34916 NULL
117978 +__inode_permission_34925 __inode_permission 0 34925 NULL nohasharray
117979 +btrfs_super_chunk_root_34925 btrfs_super_chunk_root 0 34925 &__inode_permission_34925
117980 +ceph_aio_write_34930 ceph_aio_write 4 34930 NULL
117981 +sec_flags2str_34933 sec_flags2str 3 34933 NULL
117982 +snd_info_entry_read_34938 snd_info_entry_read 3 34938 NULL
117983 +do_add_page_to_bio_34974 do_add_page_to_bio 2-10 34974 NULL
117984 +schedule_erase_34996 schedule_erase 0 34996 NULL
117985 +rx_rx_hdr_overflow_read_35002 rx_rx_hdr_overflow_read 3 35002 NULL
117986 +l2cap_skbuff_fromiovec_35003 l2cap_skbuff_fromiovec 4-3 35003 NULL
117987 +rtw_cfg80211_rx_p2p_action_public_35010 rtw_cfg80211_rx_p2p_action_public 3 35010 NULL
117988 +sisusb_copy_memory_35016 sisusb_copy_memory 4 35016 NULL
117989 +coda_psdev_read_35029 coda_psdev_read 3 35029 NULL
117990 +pwr_connection_out_of_sync_read_35061 pwr_connection_out_of_sync_read 3 35061 NULL
117991 +__kfifo_uint_must_check_helper_35097 __kfifo_uint_must_check_helper 0-1 35097 NULL
117992 +capi_write_35104 capi_write 3 35104 NULL nohasharray
117993 +tx_tx_done_template_read_35104 tx_tx_done_template_read 3 35104 &capi_write_35104
117994 +ide_settings_proc_write_35110 ide_settings_proc_write 3 35110 NULL
117995 +message_stats_print_35158 message_stats_print 6 35158 NULL
117996 +iscsi_conn_setup_35159 iscsi_conn_setup 2 35159 NULL
117997 +ieee80211_if_read_bssid_35161 ieee80211_if_read_bssid 3 35161 NULL
117998 +compat_SyS_pselect6_35203 compat_SyS_pselect6 1 35203 NULL
117999 +unix_stream_recvmsg_35210 unix_stream_recvmsg 4 35210 NULL
118000 +security_key_getsecurity_35218 security_key_getsecurity 0 35218 NULL nohasharray
118001 +striped_read_35218 striped_read 0-2 35218 &security_key_getsecurity_35218
118002 +rx_rx_cmplt_task_read_35226 rx_rx_cmplt_task_read 3 35226 NULL
118003 +set_fd_set_35249 set_fd_set 1 35249 NULL
118004 +ioapic_setup_resources_35255 ioapic_setup_resources 1 35255 NULL
118005 +dis_disc_write_35265 dis_disc_write 3 35265 NULL
118006 +dma_show_regs_35266 dma_show_regs 3 35266 NULL
118007 +irda_recvmsg_stream_35280 irda_recvmsg_stream 4 35280 NULL
118008 +i2o_block_end_request_35282 i2o_block_end_request 3 35282 NULL
118009 +isr_rx_rdys_read_35283 isr_rx_rdys_read 3 35283 NULL
118010 +__btrfs_buffered_write_35311 __btrfs_buffered_write 3-0 35311 NULL nohasharray
118011 +brcmf_sdio_forensic_read_35311 brcmf_sdio_forensic_read 3 35311 &__btrfs_buffered_write_35311
118012 +tracing_read_pipe_35312 tracing_read_pipe 3 35312 NULL
118013 +sta_tx_latency_stat_write_35323 sta_tx_latency_stat_write 3 35323 NULL
118014 +ieee80211_if_fmt_ap_power_level_35347 ieee80211_if_fmt_ap_power_level 3 35347 NULL
118015 +nouveau_devinit_create__35348 nouveau_devinit_create_ 4 35348 NULL
118016 +ieee80211_rx_mgmt_deauth_35351 ieee80211_rx_mgmt_deauth 3 35351 NULL
118017 +compat_filldir64_35354 compat_filldir64 3 35354 NULL
118018 +read_kmem_35372 read_kmem 3 35372 NULL
118019 +SyS_getxattr_35408 SyS_getxattr 4 35408 NULL
118020 +rawv6_send_hdrinc_35425 rawv6_send_hdrinc 3 35425 NULL
118021 +iwl_dbgfs_drv_rx_stats_read_35430 iwl_dbgfs_drv_rx_stats_read 3 35430 NULL
118022 +buffer_to_user_35439 buffer_to_user 3 35439 NULL
118023 +efx_mcdi_rpc_async_quiet_35460 efx_mcdi_rpc_async_quiet 4-5 35460 NULL
118024 +macvtap_do_read_35475 macvtap_do_read 3 35475 NULL
118025 +fiemap_prepare_and_copy_exts_35494 fiemap_prepare_and_copy_exts 5 35494 NULL
118026 +btrfs_prealloc_file_range_trans_35500 btrfs_prealloc_file_range_trans 4 35500 NULL
118027 +async_setkey_35521 async_setkey 3 35521 NULL
118028 +__filemap_fdatawrite_range_35528 __filemap_fdatawrite_range 0 35528 NULL
118029 +iwl_dbgfs_bt_traffic_read_35534 iwl_dbgfs_bt_traffic_read 3 35534 NULL
118030 +pstore_mkfile_35536 pstore_mkfile 7 35536 NULL
118031 +rxpipe_tx_xfr_host_int_trig_rx_data_read_35538 rxpipe_tx_xfr_host_int_trig_rx_data_read 3 35538 NULL
118032 +ocfs2_write_zero_page_35539 ocfs2_write_zero_page 3 35539 NULL
118033 +ibnl_put_attr_35541 ibnl_put_attr 3 35541 NULL
118034 +ieee80211_if_write_smps_35550 ieee80211_if_write_smps 3 35550 NULL
118035 +ext4_blocks_for_truncate_35579 ext4_blocks_for_truncate 0 35579 NULL
118036 +ext2_acl_from_disk_35580 ext2_acl_from_disk 2 35580 NULL
118037 +spk_msg_set_35586 spk_msg_set 3 35586 NULL
118038 +kernel_readv_35617 kernel_readv 3 35617 NULL
118039 +reiserfs_readpages_35629 reiserfs_readpages 4 35629 NULL
118040 +pci_request_regions_35635 pci_request_regions 0 35635 NULL
118041 +ptlrpcd_steal_rqset_35637 ptlrpcd_steal_rqset 0 35637 NULL
118042 +spi_register_board_info_35651 spi_register_board_info 2 35651 NULL
118043 +rdmaltWithLock_35669 rdmaltWithLock 0 35669 NULL
118044 +SYSC_pwritev_35690 SYSC_pwritev 3 35690 NULL
118045 +rds_page_copy_user_35691 rds_page_copy_user 4 35691 NULL
118046 +md_super_write_35703 md_super_write 4 35703 NULL
118047 +iwl_dbgfs_disable_ht40_read_35761 iwl_dbgfs_disable_ht40_read 3 35761 NULL
118048 +udf_alloc_i_data_35786 udf_alloc_i_data 2 35786 NULL
118049 +pvr2_hdw_cpufw_get_35824 pvr2_hdw_cpufw_get 0-4-2 35824 NULL
118050 +tx_tx_cmplt_read_35854 tx_tx_cmplt_read 3 35854 NULL
118051 +vx_query_hbuffer_size_35859 vx_query_hbuffer_size 0 35859 NULL
118052 +mthca_buf_alloc_35861 mthca_buf_alloc 2 35861 NULL
118053 +fls64_35862 fls64 0 35862 NULL
118054 +kvm_dirty_bitmap_bytes_35886 kvm_dirty_bitmap_bytes 0 35886 NULL
118055 +ieee80211_if_fmt_dot11MeshRetryTimeout_35890 ieee80211_if_fmt_dot11MeshRetryTimeout 3 35890 NULL
118056 +uwb_rc_cmd_done_35892 uwb_rc_cmd_done 4 35892 NULL
118057 +kernel_setsockopt_35913 kernel_setsockopt 5 35913 NULL
118058 +rbio_nr_pages_35916 rbio_nr_pages 0-1-2 35916 NULL
118059 +sctp_tsnmap_mark_35929 sctp_tsnmap_mark 2 35929 NULL
118060 +rx_defrag_init_called_read_35935 rx_defrag_init_called_read 3 35935 NULL
118061 +put_cmsg_compat_35937 put_cmsg_compat 4 35937 NULL
118062 +ext_rts51x_sd_execute_write_data_35971 ext_rts51x_sd_execute_write_data 9 35971 NULL
118063 +generic_ocp_read_35974 generic_ocp_read 3 35974 NULL nohasharray
118064 +ceph_buffer_new_35974 ceph_buffer_new 1 35974 &generic_ocp_read_35974
118065 +acl_alloc_35979 acl_alloc 1 35979 NULL
118066 +device_add_class_symlinks_35985 device_add_class_symlinks 0 35985 NULL
118067 +kuc_alloc_35998 kuc_alloc 1 35998 NULL nohasharray
118068 +write_file_antenna_35998 write_file_antenna 3 35998 &kuc_alloc_35998
118069 +scsi_transfer_length_36011 scsi_transfer_length 0 36011 NULL
118070 +il3945_ucode_tx_stats_read_36016 il3945_ucode_tx_stats_read 3 36016 NULL
118071 +ubi_eba_write_leb_36029 ubi_eba_write_leb 0 36029 NULL
118072 +__videobuf_alloc_36031 __videobuf_alloc 1 36031 NULL
118073 +account_shadowed_36048 account_shadowed 2 36048 NULL
118074 +gpio_power_read_36059 gpio_power_read 3 36059 NULL
118075 +snd_pcm_playback_hw_avail_36061 snd_pcm_playback_hw_avail 0 36061 NULL
118076 +write_emulate_36065 write_emulate 2-4 36065 NULL
118077 +stack_max_size_write_36068 stack_max_size_write 3 36068 NULL
118078 +radeon_vm_num_pdes_36070 radeon_vm_num_pdes 0 36070 NULL
118079 +ieee80211_if_fmt_peer_36071 ieee80211_if_fmt_peer 3 36071 NULL
118080 +ieee80211_if_write_tsf_36077 ieee80211_if_write_tsf 3 36077 NULL
118081 +snd_pcm_plug_read_transfer_36080 snd_pcm_plug_read_transfer 0-3 36080 NULL
118082 +mtip_hw_read_device_status_36082 mtip_hw_read_device_status 3 36082 NULL
118083 +vga_arb_write_36112 vga_arb_write 3 36112 NULL
118084 +simple_xattr_alloc_36118 simple_xattr_alloc 2 36118 NULL
118085 +ext3_readpages_36144 ext3_readpages 4 36144 NULL
118086 +twl_set_36154 twl_set 2 36154 NULL
118087 +b1_alloc_card_36155 b1_alloc_card 1 36155 NULL
118088 +snd_korg1212_copy_from_36169 snd_korg1212_copy_from 6 36169 NULL
118089 +SyS_kexec_load_36176 SyS_kexec_load 2 36176 NULL
118090 +ramoops_init_przs_36199 ramoops_init_przs 4 36199 NULL
118091 +SYSC_sched_getaffinity_36208 SYSC_sched_getaffinity 2 36208 NULL
118092 +SYSC_process_vm_readv_36216 SYSC_process_vm_readv 3-5 36216 NULL
118093 +atomic_stats_read_36228 atomic_stats_read 3 36228 NULL
118094 +rtw_cfg80211_set_wpa_ie_36236 rtw_cfg80211_set_wpa_ie 3 36236 NULL
118095 +viafb_iga1_odev_proc_write_36241 viafb_iga1_odev_proc_write 3 36241 NULL
118096 +SYSC_getxattr_36242 SYSC_getxattr 4 36242 NULL
118097 +vmsplice_to_user_36245 vmsplice_to_user 3 36245 NULL nohasharray
118098 +rproc_recovery_read_36245 rproc_recovery_read 3 36245 &vmsplice_to_user_36245
118099 +cfs_hash_buckets_realloc_36276 cfs_hash_buckets_realloc 4 36276 NULL nohasharray
118100 +usb_buffer_alloc_36276 usb_buffer_alloc 2 36276 &cfs_hash_buckets_realloc_36276
118101 +codec_reg_read_file_36280 codec_reg_read_file 3 36280 NULL
118102 +crypto_shash_digestsize_36284 crypto_shash_digestsize 0 36284 NULL
118103 +lpfc_debugfs_dif_err_read_36303 lpfc_debugfs_dif_err_read 3 36303 NULL
118104 +cfg80211_rx_mlme_mgmt_36306 cfg80211_rx_mlme_mgmt 3 36306 NULL
118105 +ad7879_spi_xfer_36311 ad7879_spi_xfer 3 36311 NULL
118106 +__compat_sys_pwritev64_36328 __compat_sys_pwritev64 3 36328 NULL nohasharray
118107 +fat_compat_ioctl_filldir_36328 fat_compat_ioctl_filldir 3 36328 &__compat_sys_pwritev64_36328
118108 +lc_create_36332 lc_create 4 36332 NULL
118109 +jbd2_journal_init_revoke_table_36336 jbd2_journal_init_revoke_table 1 36336 NULL
118110 +isku_sysfs_read_key_mask_36343 isku_sysfs_read_key_mask 6 36343 NULL
118111 +ath6kl_regwrite_write_36351 ath6kl_regwrite_write 3 36351 NULL
118112 +v9fs_file_readn_36353 v9fs_file_readn 4 36353 NULL
118113 +to_sector_36361 to_sector 0-1 36361 NULL
118114 +tunables_read_36385 tunables_read 3 36385 NULL
118115 +afs_alloc_flat_call_36399 afs_alloc_flat_call 2-3 36399 NULL
118116 +sierra_write_36402 sierra_write 4 36402 NULL
118117 +SyS_sethostname_36417 SyS_sethostname 2 36417 NULL
118118 +sctp_tsnmap_init_36446 sctp_tsnmap_init 2 36446 NULL
118119 +alloc_etherdev_mqs_36450 alloc_etherdev_mqs 1 36450 NULL
118120 +SyS_process_vm_writev_36476 SyS_process_vm_writev 3-5 36476 NULL
118121 +lock_and_cleanup_extent_if_need_36480 lock_and_cleanup_extent_if_need 0 36480 NULL
118122 +b43_nphy_load_samples_36481 b43_nphy_load_samples 3 36481 NULL
118123 +tx_tx_checksum_result_read_36490 tx_tx_checksum_result_read 3 36490 NULL nohasharray
118124 +ip6_append_data_36490 ip6_append_data 4 36490 &tx_tx_checksum_result_read_36490
118125 +__hwahc_op_set_ptk_36510 __hwahc_op_set_ptk 5 36510 NULL
118126 +mcam_v4l_read_36513 mcam_v4l_read 3 36513 NULL
118127 +_iwl_dbgfs_fw_nmi_write_36515 _iwl_dbgfs_fw_nmi_write 3 36515 NULL
118128 +get_param_l_36518 get_param_l 0 36518 NULL
118129 +ieee80211_if_read_fwded_frames_36520 ieee80211_if_read_fwded_frames 3 36520 NULL
118130 +crypto_aead_authsize_36537 crypto_aead_authsize 0 36537 NULL
118131 +cpu_type_read_36540 cpu_type_read 3 36540 NULL
118132 +__kfifo_to_user_36555 __kfifo_to_user 3-0 36555 NULL
118133 +btrfs_get_token_64_36572 btrfs_get_token_64 0 36572 NULL
118134 +__erst_read_36579 __erst_read 0 36579 NULL
118135 +put_cmsg_36589 put_cmsg 4 36589 NULL
118136 +fat_ioctl_filldir_36621 fat_ioctl_filldir 3 36621 NULL
118137 +vxge_config_vpaths_36636 vxge_config_vpaths 0 36636 NULL
118138 +convert_extent_item_v0_36645 convert_extent_item_v0 4 36645 NULL
118139 +ced_ioctl_36647 ced_ioctl 2 36647 NULL
118140 +lpfc_idiag_extacc_alloc_get_36648 lpfc_idiag_extacc_alloc_get 0-3 36648 NULL
118141 +osd_req_list_collection_objects_36664 osd_req_list_collection_objects 5 36664 NULL
118142 +iscsi_host_alloc_36671 iscsi_host_alloc 2 36671 NULL
118143 +xillybus_read_36678 xillybus_read 3 36678 NULL
118144 +gsmtty_write_36702 gsmtty_write 3 36702 NULL
118145 +snd_rawmidi_kernel_read1_36740 snd_rawmidi_kernel_read1 4-0 36740 NULL
118146 +cxgbi_device_register_36746 cxgbi_device_register 1-2 36746 NULL
118147 +ps_poll_upsd_timeouts_read_36755 ps_poll_upsd_timeouts_read 3 36755 NULL
118148 +i40e_init_lan_hmc_36796 i40e_init_lan_hmc 5-4-3-2 36796 NULL
118149 +proc_fault_inject_read_36802 proc_fault_inject_read 3 36802 NULL
118150 +hiddev_ioctl_36816 hiddev_ioctl 2 36816 NULL
118151 +int_hardware_entry_36833 int_hardware_entry 3 36833 NULL
118152 +fc_change_queue_depth_36841 fc_change_queue_depth 2 36841 NULL
118153 +keyctl_describe_key_36853 keyctl_describe_key 3 36853 NULL
118154 +cm_write_36858 cm_write 3 36858 NULL
118155 +tipc_link_iovec_long_xmit_36871 tipc_link_iovec_long_xmit 3 36871 NULL nohasharray
118156 +tx_tx_data_programmed_read_36871 tx_tx_data_programmed_read 3 36871 &tipc_link_iovec_long_xmit_36871
118157 +svc_setsockopt_36876 svc_setsockopt 5 36876 NULL
118158 +raid56_parity_write_36877 raid56_parity_write 5 36877 NULL
118159 +__btrfs_map_block_36883 __btrfs_map_block 3 36883 NULL
118160 +ib_ucm_alloc_data_36885 ib_ucm_alloc_data 3 36885 NULL
118161 +selinux_inode_notifysecctx_36896 selinux_inode_notifysecctx 3 36896 NULL
118162 +OS_kmalloc_36909 OS_kmalloc 1 36909 NULL
118163 +il4965_rs_sta_dbgfs_scale_table_write_36979 il4965_rs_sta_dbgfs_scale_table_write 3 36979 NULL
118164 +drbd_new_dev_size_36998 drbd_new_dev_size 0-3 36998 NULL
118165 +auok190xfb_write_37001 auok190xfb_write 3 37001 NULL
118166 +setxattr_37006 setxattr 4 37006 NULL
118167 +command_file_read_37038 command_file_read 3 37038 NULL
118168 +figure_loop_size_37051 figure_loop_size 2-3 37051 NULL
118169 +qp_broker_create_37053 qp_broker_create 6-5 37053 NULL nohasharray
118170 +ieee80211_if_read_drop_unencrypted_37053 ieee80211_if_read_drop_unencrypted 3 37053 &qp_broker_create_37053
118171 +_iwl_dbgfs_bcast_filters_macs_write_37069 _iwl_dbgfs_bcast_filters_macs_write 3 37069 NULL
118172 +SYSC_setxattr_37078 SYSC_setxattr 4 37078 NULL
118173 +parse_command_37079 parse_command 2 37079 NULL
118174 +pipeline_cs_rx_packet_in_read_37089 pipeline_cs_rx_packet_in_read 3 37089 NULL
118175 +tun_get_user_37094 tun_get_user 5 37094 NULL
118176 +has_wrprotected_page_37123 has_wrprotected_page 2-3 37123 NULL
118177 +snd_hda_get_conn_list_37132 snd_hda_get_conn_list 0 37132 NULL
118178 +mtt_free_res_37144 mtt_free_res 5 37144 NULL
118179 +msg_word_37164 msg_word 0 37164 NULL
118180 +f2fs_direct_IO_37167 f2fs_direct_IO 4 37167 NULL
118181 +vcc_recvmsg_37198 vcc_recvmsg 4 37198 NULL
118182 +forced_ps_write_37209 forced_ps_write 3 37209 NULL
118183 +crypto_shash_descsize_37212 crypto_shash_descsize 0 37212 NULL nohasharray
118184 +ext4_ind_direct_IO_37212 ext4_ind_direct_IO 4-0 37212 &crypto_shash_descsize_37212
118185 +regmap_access_read_file_37223 regmap_access_read_file 3 37223 NULL
118186 +__do_replace_37227 __do_replace 5 37227 NULL
118187 +iwl_dbgfs_d3_sram_read_37237 iwl_dbgfs_d3_sram_read 3 37237 NULL
118188 +rx_filter_dup_filter_read_37238 rx_filter_dup_filter_read 3 37238 NULL
118189 +prot_queue_del_37258 prot_queue_del 0 37258 NULL
118190 +exofs_max_io_pages_37263 exofs_max_io_pages 0-2 37263 NULL
118191 +_iwl_dbgfs_fw_restart_write_37270 _iwl_dbgfs_fw_restart_write 3 37270 NULL
118192 +request_threaded_irq_37303 request_threaded_irq 0 37303 NULL
118193 +ieee80211_if_read_power_mode_37305 ieee80211_if_read_power_mode 3 37305 NULL
118194 +ext3_direct_IO_37308 ext3_direct_IO 4 37308 NULL
118195 +jffs2_write_dirent_37311 jffs2_write_dirent 5 37311 NULL
118196 +tipc_send_37315 tipc_send 3 37315 NULL
118197 +l2cap_create_connless_pdu_37327 l2cap_create_connless_pdu 3 37327 NULL nohasharray
118198 +bnx2x_vf_fill_fw_str_37327 bnx2x_vf_fill_fw_str 3 37327 &l2cap_create_connless_pdu_37327
118199 +scsi_mode_select_37330 scsi_mode_select 6 37330 NULL
118200 +rxrpc_server_sendmsg_37331 rxrpc_server_sendmsg 4 37331 NULL
118201 +security_inode_getsecurity_37354 security_inode_getsecurity 0 37354 NULL
118202 +hci_sock_sendmsg_37420 hci_sock_sendmsg 4 37420 NULL
118203 +acpi_os_allocate_zeroed_37422 acpi_os_allocate_zeroed 1 37422 NULL
118204 +tty_insert_flip_string_fixed_flag_37428 tty_insert_flip_string_fixed_flag 4-0 37428 NULL
118205 +iwl_print_last_event_logs_37433 iwl_print_last_event_logs 0-7-9 37433 NULL
118206 +fru_alloc_37442 fru_alloc 1 37442 NULL
118207 +tcp_established_options_37450 tcp_established_options 0 37450 NULL
118208 +brcmf_sdio_dump_console_37455 brcmf_sdio_dump_console 4 37455 NULL
118209 +get_est_timing_37484 get_est_timing 0 37484 NULL
118210 +kmem_realloc_37489 kmem_realloc 2 37489 NULL
118211 +bitmap_dirty_bits_37503 bitmap_dirty_bits 2 37503 NULL
118212 +osc_active_seq_write_37514 osc_active_seq_write 3 37514 NULL
118213 +bdev_writeseg_37519 bdev_writeseg 2-3 37519 NULL
118214 +xz_dec_test_write_37527 xz_dec_test_write 3 37527 NULL
118215 +fault_inject_read_37534 fault_inject_read 3 37534 NULL
118216 +hdr_size_37536 hdr_size 0 37536 NULL
118217 +extent_map_end_37550 extent_map_end 0 37550 NULL
118218 +sep_create_dcb_dmatables_context_37551 sep_create_dcb_dmatables_context 6 37551 NULL
118219 +fat_cont_expand_37552 fat_cont_expand 0 37552 NULL
118220 +xhci_alloc_streams_37586 xhci_alloc_streams 5 37586 NULL
118221 +qla2x00_debounce_register_37597 qla2x00_debounce_register 0 37597 NULL
118222 +kvm_read_guest_page_mmu_37611 kvm_read_guest_page_mmu 6 37611 NULL
118223 +SYSC_mbind_37622 SYSC_mbind 5 37622 NULL
118224 +SyS_mbind_37638 SyS_mbind 5 37638 NULL
118225 +may_delete_37656 may_delete 0 37656 NULL
118226 +bio_copy_user_iov_37660 bio_copy_user_iov 4 37660 NULL
118227 +vmw_framebuffer_dmabuf_dirty_37661 vmw_framebuffer_dmabuf_dirty 6 37661 NULL nohasharray
118228 +rfcomm_sock_sendmsg_37661 rfcomm_sock_sendmsg 4 37661 &vmw_framebuffer_dmabuf_dirty_37661
118229 +SYSC_get_mempolicy_37664 SYSC_get_mempolicy 3 37664 NULL
118230 +__wa_seg_calculate_isoc_frame_count_37672 __wa_seg_calculate_isoc_frame_count 0 37672 NULL
118231 +ieee80211_if_read_rc_rateidx_mcs_mask_2ghz_37675 ieee80211_if_read_rc_rateidx_mcs_mask_2ghz 3 37675 NULL
118232 +regmap_map_read_file_37685 regmap_map_read_file 3 37685 NULL
118233 +nametbl_header_37698 nametbl_header 2-0 37698 NULL
118234 +__le32_to_cpup_37702 __le32_to_cpup 0 37702 NULL
118235 +dynamic_ps_timeout_write_37713 dynamic_ps_timeout_write 3 37713 NULL
118236 +read_enabled_file_bool_37744 read_enabled_file_bool 3 37744 NULL
118237 +ocfs2_control_cfu_37750 ocfs2_control_cfu 2 37750 NULL
118238 +ipath_cdev_init_37752 ipath_cdev_init 1 37752 NULL
118239 +dccp_setsockopt_cscov_37766 dccp_setsockopt_cscov 2 37766 NULL
118240 +il4965_rs_sta_dbgfs_rate_scale_data_read_37792 il4965_rs_sta_dbgfs_rate_scale_data_read 3 37792 NULL
118241 +smk_read_logging_37804 smk_read_logging 3 37804 NULL
118242 +ocrdma_alloc_frmr_page_list_37815 ocrdma_alloc_frmr_page_list 2 37815 NULL
118243 +rx_decrypt_key_not_found_read_37820 rx_decrypt_key_not_found_read 3 37820 NULL
118244 +android_get_p2p_addr_37832 android_get_p2p_addr 0 37832 NULL
118245 +o2hb_debug_read_37851 o2hb_debug_read 3 37851 NULL
118246 +xfs_dir2_block_to_sf_37868 xfs_dir2_block_to_sf 3 37868 NULL
118247 +set_registers_37883 set_registers 4 37883 NULL
118248 +btrfs_stack_file_extent_disk_bytenr_37888 btrfs_stack_file_extent_disk_bytenr 0 37888 NULL
118249 +_rtw_malloc_37928 _rtw_malloc 1 37928 NULL nohasharray
118250 +pkt_alloc_packet_data_37928 pkt_alloc_packet_data 1 37928 &_rtw_malloc_37928
118251 +read_rbu_packet_size_37939 read_rbu_packet_size 6 37939 NULL
118252 +write_file_bool_37957 write_file_bool 3 37957 NULL
118253 +fifo_alloc_37961 fifo_alloc 1 37961 NULL
118254 +rds_rdma_extra_size_37990 rds_rdma_extra_size 0 37990 NULL
118255 +persistent_ram_old_size_37997 persistent_ram_old_size 0 37997 NULL
118256 +vfs_readv_38011 vfs_readv 3 38011 NULL
118257 +aggr_recv_addba_req_evt_38037 aggr_recv_addba_req_evt 4 38037 NULL
118258 +il_dbgfs_chain_noise_read_38044 il_dbgfs_chain_noise_read 3 38044 NULL nohasharray
118259 +klsi_105_prepare_write_buffer_38044 klsi_105_prepare_write_buffer 3 38044 &il_dbgfs_chain_noise_read_38044
118260 +SyS_llistxattr_38048 SyS_llistxattr 3 38048 NULL
118261 +sysfs_do_create_link_38051 sysfs_do_create_link 0 38051 NULL
118262 +_xfs_buf_alloc_38058 _xfs_buf_alloc 3 38058 NULL
118263 +nsm_create_handle_38060 nsm_create_handle 4 38060 NULL
118264 +alloc_ltalkdev_38071 alloc_ltalkdev 1 38071 NULL
118265 +wcn36xx_smd_rsp_process_38081 wcn36xx_smd_rsp_process 3 38081 NULL nohasharray
118266 +xfs_buf_readahead_map_38081 xfs_buf_readahead_map 3 38081 &wcn36xx_smd_rsp_process_38081
118267 +uwb_mac_addr_print_38085 uwb_mac_addr_print 2 38085 NULL
118268 +request_key_auth_new_38092 request_key_auth_new 3 38092 NULL
118269 +proc_self_readlink_38094 proc_self_readlink 3 38094 NULL
118270 +ep0_read_38095 ep0_read 3 38095 NULL
118271 +osc_checksum_seq_write_38096 osc_checksum_seq_write 3 38096 NULL nohasharray
118272 +sk_wmem_schedule_38096 sk_wmem_schedule 2 38096 &osc_checksum_seq_write_38096
118273 +o2hb_read_slots_38105 o2hb_read_slots 2 38105 NULL
118274 +snd_pcm_oss_write_38108 snd_pcm_oss_write 3 38108 NULL
118275 +vmw_kms_present_38130 vmw_kms_present 9 38130 NULL
118276 +__ntfs_copy_from_user_iovec_inatomic_38153 __ntfs_copy_from_user_iovec_inatomic 4-3-0 38153 NULL
118277 +btrfs_extent_same_38163 btrfs_extent_same 3-2 38163 NULL
118278 +kvm_clear_guest_38164 kvm_clear_guest 3-2 38164 NULL
118279 +cdev_add_38176 cdev_add 2-3 38176 NULL
118280 +rt2x00debug_write_rf_38195 rt2x00debug_write_rf 3 38195 NULL
118281 +get_ucode_user_38202 get_ucode_user 3 38202 NULL
118282 +osd_req_list_partition_collections_38223 osd_req_list_partition_collections 5 38223 NULL
118283 +ceph_decode_16_38239 ceph_decode_16 0 38239 NULL
118284 +_ipw_read_reg32_38245 _ipw_read_reg32 0 38245 NULL
118285 +snd_pcm_playback_rewind_38249 snd_pcm_playback_rewind 0-2 38249 NULL
118286 +mthca_alloc_icm_table_38268 mthca_alloc_icm_table 4-3 38268 NULL nohasharray
118287 +ieee80211_if_read_auto_open_plinks_38268 ieee80211_if_read_auto_open_plinks 3 38268 &mthca_alloc_icm_table_38268
118288 +xfs_bmbt_to_bmdr_38275 xfs_bmbt_to_bmdr 3 38275 NULL nohasharray
118289 +xfs_bmdr_to_bmbt_38275 xfs_bmdr_to_bmbt 5 38275 &xfs_bmbt_to_bmdr_38275
118290 +ftdi_process_packet_38281 ftdi_process_packet 4 38281 NULL
118291 +C_SYSC_pselect6_38296 C_SYSC_pselect6 1 38296 NULL
118292 +ucma_query_path_38305 ucma_query_path 3 38305 NULL
118293 +isr_rx_headers_read_38325 isr_rx_headers_read 3 38325 NULL
118294 +ida_simple_get_38326 ida_simple_get 0 38326 NULL
118295 +__snd_gf1_look8_38333 __snd_gf1_look8 0 38333 NULL
118296 +btrfs_file_extent_disk_num_bytes_38363 btrfs_file_extent_disk_num_bytes 0 38363 NULL
118297 +dn_sendmsg_38390 dn_sendmsg 4 38390 NULL
118298 +ieee80211_if_read_dtim_count_38419 ieee80211_if_read_dtim_count 3 38419 NULL
118299 +pmcraid_copy_sglist_38431 pmcraid_copy_sglist 3 38431 NULL
118300 +kvm_write_guest_38454 kvm_write_guest 4-2 38454 NULL
118301 +_iwl_dbgfs_scan_ant_rxchain_write_38479 _iwl_dbgfs_scan_ant_rxchain_write 3 38479 NULL
118302 +blk_end_bidi_request_38482 blk_end_bidi_request 3-4 38482 NULL
118303 +dev_names_read_38509 dev_names_read 3 38509 NULL
118304 +iscsi_create_iface_38510 iscsi_create_iface 5 38510 NULL
118305 +event_rx_mismatch_read_38518 event_rx_mismatch_read 3 38518 NULL
118306 +set_queue_count_38519 set_queue_count 0 38519 NULL
118307 +ubifs_idx_node_sz_38546 ubifs_idx_node_sz 0-2 38546 NULL
118308 +btrfs_discard_extent_38547 btrfs_discard_extent 2 38547 NULL
118309 +kuc_len_38557 kuc_len 0-1 38557 NULL
118310 +irda_sendmsg_dgram_38563 irda_sendmsg_dgram 4 38563 NULL
118311 +il4965_rs_sta_dbgfs_scale_table_read_38564 il4965_rs_sta_dbgfs_scale_table_read 3 38564 NULL
118312 +_ipw_read32_38565 _ipw_read32 0 38565 NULL
118313 +snd_nm256_playback_copy_38567 snd_nm256_playback_copy 3-5 38567 NULL
118314 +copy_ctl_value_to_user_38587 copy_ctl_value_to_user 4 38587 NULL
118315 +rd_allocate_sgl_table_38607 rd_allocate_sgl_table 3 38607 NULL
118316 +icn_writecmd_38629 icn_writecmd 2 38629 NULL
118317 +write_enabled_file_bool_38630 write_enabled_file_bool 3 38630 NULL
118318 +ext2_readpages_38640 ext2_readpages 4 38640 NULL
118319 +audit_init_entry_38644 audit_init_entry 1 38644 NULL
118320 +qp_broker_alloc_38646 qp_broker_alloc 6-5 38646 NULL
118321 +mmc_send_cxd_data_38655 mmc_send_cxd_data 5 38655 NULL
118322 +nouveau_instmem_create__38664 nouveau_instmem_create_ 4 38664 NULL
118323 +snd_es1371_wait_src_ready_38673 snd_es1371_wait_src_ready 0 38673 NULL
118324 +iscsit_dump_data_payload_38683 iscsit_dump_data_payload 2 38683 NULL
118325 +validate_vid_hdr_38699 validate_vid_hdr 0 38699 NULL
118326 +rbio_add_io_page_38700 rbio_add_io_page 6 38700 NULL
118327 +udf_readpages_38761 udf_readpages 4 38761 NULL
118328 +iwl_dbgfs_thermal_throttling_read_38779 iwl_dbgfs_thermal_throttling_read 3 38779 NULL
118329 +bcache_device_init_38781 bcache_device_init 3 38781 NULL
118330 +snd_gus_dram_write_38784 snd_gus_dram_write 4 38784 NULL
118331 +do_pci_enable_device_38802 do_pci_enable_device 0 38802 NULL
118332 +err_decode_38804 err_decode 2 38804 NULL
118333 +ipv6_renew_option_38813 ipv6_renew_option 3 38813 NULL
118334 +direct_entry_38836 direct_entry 3 38836 NULL
118335 +compat_udp_setsockopt_38840 compat_udp_setsockopt 5 38840 NULL
118336 +read_nic_io_word_38853 read_nic_io_word 0 38853 NULL
118337 +interfaces_38859 interfaces 2 38859 NULL
118338 +dbgfs_state_38894 dbgfs_state 3 38894 NULL
118339 +il_dbgfs_sram_write_38942 il_dbgfs_sram_write 3 38942 NULL
118340 +__ath6kl_wmi_send_mgmt_cmd_38971 __ath6kl_wmi_send_mgmt_cmd 7 38971 NULL
118341 +usb_maxpacket_38977 usb_maxpacket 0 38977 NULL nohasharray
118342 +C_SYSC_preadv64_38977 C_SYSC_preadv64 3 38977 &usb_maxpacket_38977
118343 +OSDSetBlock_38986 OSDSetBlock 2-4 38986 NULL
118344 +bio_clone_range_38997 bio_clone_range 2 38997 NULL
118345 +lpfc_idiag_extacc_write_38998 lpfc_idiag_extacc_write 3 38998 NULL
118346 +get_nodes_39012 get_nodes 3 39012 NULL
118347 +twl6030_interrupt_unmask_39013 twl6030_interrupt_unmask 2 39013 NULL
118348 +force_sc_support_read_39014 force_sc_support_read 3 39014 NULL
118349 +__blkdev_issue_zeroout_39020 __blkdev_issue_zeroout 3 39020 NULL
118350 +_zd_iowrite32v_async_locked_39034 _zd_iowrite32v_async_locked 3 39034 NULL
118351 +do_write_kmem_39051 do_write_kmem 0-1-3 39051 NULL
118352 +tomoyo_truncate_39105 tomoyo_truncate 0 39105 NULL
118353 +leb_write_lock_39111 leb_write_lock 0 39111 NULL
118354 +__kfifo_to_user_r_39123 __kfifo_to_user_r 5-3 39123 NULL
118355 +ea_foreach_39133 ea_foreach 0 39133 NULL
118356 +generic_permission_39150 generic_permission 0 39150 NULL
118357 +proc_coredump_filter_read_39153 proc_coredump_filter_read 3 39153 NULL
118358 +ath9k_hw_ar9003_dump_eeprom_39156 ath9k_hw_ar9003_dump_eeprom 5-4 39156 NULL
118359 +echo_client_kbrw_39170 echo_client_kbrw 6 39170 NULL
118360 +ext3_xattr_check_names_39174 ext3_xattr_check_names 0 39174 NULL
118361 +ubi_more_update_data_39189 ubi_more_update_data 4 39189 NULL
118362 +qcam_read_bytes_39205 qcam_read_bytes 0 39205 NULL
118363 +ivtv_v4l2_write_39226 ivtv_v4l2_write 3 39226 NULL
118364 +posix_acl_to_xattr_39237 posix_acl_to_xattr 0 39237 NULL
118365 +snd_pcm_capture_forward_39248 snd_pcm_capture_forward 0-2 39248 NULL
118366 +r128_compat_ioctl_39250 r128_compat_ioctl 2 39250 NULL nohasharray
118367 +pwr_cont_miss_bcns_spread_read_39250 pwr_cont_miss_bcns_spread_read 3 39250 &r128_compat_ioctl_39250
118368 +i915_error_state_read_39254 i915_error_state_read 3 39254 NULL
118369 +rx_filter_protection_filter_read_39282 rx_filter_protection_filter_read 3 39282 NULL
118370 +_iwl_dbgfs_pm_params_write_39325 _iwl_dbgfs_pm_params_write 3 39325 NULL
118371 +__cfg80211_connect_result_39326 __cfg80211_connect_result 4-6 39326 NULL
118372 +insert_reserved_file_extent_39327 insert_reserved_file_extent 3 39327 NULL
118373 +wimax_msg_alloc_39343 wimax_msg_alloc 4 39343 NULL
118374 +ide_complete_rq_39354 ide_complete_rq 3 39354 NULL
118375 +do_write_log_from_user_39362 do_write_log_from_user 3-0 39362 NULL
118376 +vortex_wtdma_getlinearpos_39371 vortex_wtdma_getlinearpos 0 39371 NULL
118377 +regmap_name_read_file_39379 regmap_name_read_file 3 39379 NULL
118378 +fnic_trace_debugfs_read_39380 fnic_trace_debugfs_read 3 39380 NULL
118379 +ps_poll_ps_poll_utilization_read_39383 ps_poll_ps_poll_utilization_read 3 39383 NULL
118380 +__send_to_port_39386 __send_to_port 3 39386 NULL
118381 +user_power_read_39414 user_power_read 3 39414 NULL
118382 +hash_ipmark4_expire_39419 hash_ipmark4_expire 4 39419 NULL
118383 +alloc_agpphysmem_i8xx_39427 alloc_agpphysmem_i8xx 1 39427 NULL
118384 +mic_desc_size_39464 mic_desc_size 0 39464 NULL
118385 +setkey_unaligned_39474 setkey_unaligned 3 39474 NULL
118386 +ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries_39499 ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries 3 39499 NULL
118387 +cl_req_alloc_39523 cl_req_alloc 4 39523 NULL
118388 +int_proc_write_39542 int_proc_write 3 39542 NULL
118389 +ext4_alloc_file_blocks_39551 ext4_alloc_file_blocks 3 39551 NULL
118390 +pp_write_39554 pp_write 3 39554 NULL
118391 +datablob_format_39571 datablob_format 2 39571 NULL nohasharray
118392 +ieee80211_if_read_fwded_mcast_39571 ieee80211_if_read_fwded_mcast 3 39571 &datablob_format_39571
118393 +memblock_virt_alloc_internal_39600 memblock_virt_alloc_internal 1 39600 NULL
118394 +ext_depth_39607 ext_depth 0 39607 NULL
118395 +batadv_tt_tvlv_generate_39615 batadv_tt_tvlv_generate 4 39615 NULL
118396 +nfs_idmap_get_key_39616 nfs_idmap_get_key 2 39616 NULL
118397 +sdio_readb_39618 sdio_readb 0 39618 NULL
118398 +prepare_uptodate_page_39622 prepare_uptodate_page 0 39622 NULL
118399 +set_dev_class_39645 set_dev_class 4 39645 NULL
118400 +snd_rme32_capture_copy_39653 snd_rme32_capture_copy 5 39653 NULL
118401 +tcp_try_rmem_schedule_39657 tcp_try_rmem_schedule 3 39657 NULL
118402 +kvm_read_guest_cached_39666 kvm_read_guest_cached 4 39666 NULL
118403 +v4l_stk_read_39672 v4l_stk_read 3 39672 NULL
118404 +hsc_msg_len_get_39673 hsc_msg_len_get 0 39673 NULL
118405 +do_surface_dirty_sou_39678 do_surface_dirty_sou 7 39678 NULL
118406 +sd_completed_bytes_39705 sd_completed_bytes 0 39705 NULL
118407 +ftrace_pid_write_39710 ftrace_pid_write 3 39710 NULL
118408 +adt7316_spi_multi_read_39765 adt7316_spi_multi_read 3 39765 NULL
118409 +security_inode_listsecurity_39812 security_inode_listsecurity 0 39812 NULL
118410 +snd_pcm_oss_writev3_39818 snd_pcm_oss_writev3 3 39818 NULL
118411 +get_priv_size_39828 get_priv_size 0-1 39828 NULL
118412 +pkt_add_39897 pkt_add 3 39897 NULL
118413 +read_file_modal_eeprom_39909 read_file_modal_eeprom 3 39909 NULL
118414 +gen_pool_add_virt_39913 gen_pool_add_virt 4 39913 NULL
118415 +dw210x_op_rw_39915 dw210x_op_rw 6 39915 NULL
118416 +__mnt_want_write_file_39917 __mnt_want_write_file 0 39917 NULL
118417 +aes_encrypt_interrupt_read_39919 aes_encrypt_interrupt_read 3 39919 NULL
118418 +exofs_read_kern_39921 exofs_read_kern 6 39921 NULL nohasharray
118419 +oom_score_adj_read_39921 oom_score_adj_read 3 39921 &exofs_read_kern_39921
118420 +__spi_async_39932 __spi_async 0 39932 NULL
118421 +__get_order_39935 __get_order 0 39935 NULL
118422 +error_error_frame_read_39947 error_error_frame_read 3 39947 NULL
118423 +tty_prepare_flip_string_39955 tty_prepare_flip_string 3-0 39955 NULL
118424 +lstcon_group_list_39958 lstcon_group_list 2 39958 NULL
118425 +bio_chain_clone_range_39967 bio_chain_clone_range 3 39967 NULL
118426 +dma_push_rx_39973 dma_push_rx 2 39973 NULL
118427 +broadsheetfb_write_39976 broadsheetfb_write 3 39976 NULL
118428 +mthca_array_init_39987 mthca_array_init 2 39987 NULL
118429 +fw_device_op_read_39990 fw_device_op_read 3 39990 NULL
118430 +server_name2svname_39998 server_name2svname 4 39998 NULL
118431 +xen_hvm_config_40018 xen_hvm_config 2 40018 NULL
118432 +ivtvfb_write_40023 ivtvfb_write 3 40023 NULL
118433 +disc_pwup_write_40027 disc_pwup_write 3 40027 NULL
118434 +ea_foreach_i_40028 ea_foreach_i 0 40028 NULL
118435 +datablob_hmac_append_40038 datablob_hmac_append 3 40038 NULL
118436 +l2cap_create_iframe_pdu_40055 l2cap_create_iframe_pdu 3 40055 NULL nohasharray
118437 +add_tty_40055 add_tty 1 40055 &l2cap_create_iframe_pdu_40055
118438 +atomic_xchg_40070 atomic_xchg 0 40070 NULL
118439 +snd_pcm_sw_params_user_40095 snd_pcm_sw_params_user 0 40095 NULL
118440 +sctp_setsockopt_delayed_ack_40129 sctp_setsockopt_delayed_ack 3 40129 NULL
118441 +dwc2_max_desc_num_40132 dwc2_max_desc_num 0 40132 NULL
118442 +rx_rx_frame_checksum_read_40140 rx_rx_frame_checksum_read 3 40140 NULL
118443 +ath10k_write_simulate_fw_crash_40143 ath10k_write_simulate_fw_crash 3 40143 NULL
118444 +iwch_alloc_fastreg_pbl_40153 iwch_alloc_fastreg_pbl 2 40153 NULL
118445 +pt_write_40159 pt_write 3 40159 NULL
118446 +scsi_sg_count_40182 scsi_sg_count 0 40182 NULL
118447 +ipr_alloc_ucode_buffer_40199 ipr_alloc_ucode_buffer 1 40199 NULL
118448 +allocate_probes_40204 allocate_probes 1 40204 NULL
118449 +au0828_v4l2_read_40220 au0828_v4l2_read 3 40220 NULL
118450 +compress_file_range_40225 compress_file_range 3-4 40225 NULL
118451 +ocrdma_dbgfs_ops_read_40232 ocrdma_dbgfs_ops_read 3 40232 NULL
118452 +osst_read_40237 osst_read 3 40237 NULL
118453 +lpage_info_slot_40243 lpage_info_slot 1-3 40243 NULL
118454 +ocfs2_zero_extend_get_range_40248 ocfs2_zero_extend_get_range 4 40248 NULL
118455 +of_get_child_count_40254 of_get_child_count 0 40254 NULL
118456 +rs_sta_dbgfs_scale_table_read_40262 rs_sta_dbgfs_scale_table_read 3 40262 NULL
118457 +ext2_fiemap_40271 ext2_fiemap 4 40271 NULL
118458 +usbnet_read_cmd_40275 usbnet_read_cmd 7 40275 NULL
118459 +rx_xfr_hint_trig_read_40283 rx_xfr_hint_trig_read 3 40283 NULL
118460 +SyS_bind_40303 SyS_bind 3 40303 NULL
118461 +ubi_io_write_data_40305 ubi_io_write_data 0 40305 NULL
118462 +ib_get_mad_data_offset_40336 ib_get_mad_data_offset 0 40336 NULL
118463 +mmio_read_40348 mmio_read 4 40348 NULL
118464 +event_rx_mem_empty_read_40363 event_rx_mem_empty_read 3 40363 NULL
118465 +ocfs2_check_range_for_refcount_40365 ocfs2_check_range_for_refcount 2-3 40365 NULL
118466 +get_chars_40373 get_chars 3 40373 NULL
118467 +fb_prepare_extra_logos_40429 fb_prepare_extra_logos 0-2 40429 NULL
118468 +tomoyo_update_policy_40458 tomoyo_update_policy 2 40458 NULL
118469 +zd_usb_scnprint_id_40459 zd_usb_scnprint_id 0-3 40459 NULL
118470 +gp2ap020a00f_write_event_threshold_40461 gp2ap020a00f_write_event_threshold 2 40461 NULL
118471 +SyS_writev_40467 SyS_writev 3 40467 NULL
118472 +SyS_select_40473 SyS_select 1 40473 NULL
118473 +afs_fs_store_data_40484 afs_fs_store_data 3-4-5-6 40484 NULL
118474 +batadv_hash_new_40491 batadv_hash_new 1 40491 NULL
118475 +devcgroup_inode_permission_40492 devcgroup_inode_permission 0 40492 NULL
118476 +__ethtool_get_sset_count_40511 __ethtool_get_sset_count 0 40511 NULL
118477 +TSS_checkhmac2_40520 TSS_checkhmac2 5-7 40520 NULL
118478 +ixgbe_dbg_reg_ops_read_40540 ixgbe_dbg_reg_ops_read 3 40540 NULL
118479 +ima_write_policy_40548 ima_write_policy 3 40548 NULL
118480 +esp_alloc_tmp_40558 esp_alloc_tmp 3-2 40558 NULL
118481 +get_priv_descr_and_size_40612 get_priv_descr_and_size 0 40612 NULL
118482 +i2c_register_adapter_40660 i2c_register_adapter 0 40660 NULL
118483 +twl4030_kpwrite_u8_40665 twl4030_kpwrite_u8 3 40665 NULL
118484 +__cfg80211_roamed_40668 __cfg80211_roamed 4-6 40668 NULL
118485 +pipeline_rx_complete_stat_fifo_int_read_40671 pipeline_rx_complete_stat_fifo_int_read 3 40671 NULL
118486 +fops_read_40672 fops_read 3 40672 NULL
118487 +idr_get_empty_slot_40674 idr_get_empty_slot 0 40674 NULL
118488 +alloc_rbio_40676 alloc_rbio 4 40676 NULL
118489 +videobuf_dma_init_user_locked_40678 videobuf_dma_init_user_locked 4-3 40678 NULL
118490 +pci_enable_resources_40680 pci_enable_resources 0 40680 NULL
118491 +nfc_hci_set_param_40697 nfc_hci_set_param 5 40697 NULL
118492 +__seq_open_private_40715 __seq_open_private 3 40715 NULL
118493 +set_extent_bit_40719 set_extent_bit 0 40719 NULL
118494 +of_pdt_build_one_prop_40735 of_pdt_build_one_prop 5 40735 NULL
118495 +fuse_readpages_40737 fuse_readpages 4 40737 NULL
118496 +xfs_iext_remove_direct_40744 xfs_iext_remove_direct 3 40744 NULL
118497 +security_inode_listxattr_40752 security_inode_listxattr 0 40752 NULL
118498 +card_send_command_40757 card_send_command 3 40757 NULL
118499 +ad1889_readl_40765 ad1889_readl 0 40765 NULL
118500 +pg_write_40766 pg_write 3 40766 NULL
118501 +kernfs_fop_read_40770 kernfs_fop_read 3 40770 NULL
118502 +show_list_40775 show_list 3-0 40775 NULL
118503 +kfifo_out_copy_r_40784 kfifo_out_copy_r 0-3 40784 NULL
118504 +bitmap_weight_40791 bitmap_weight 0 40791 NULL
118505 +pyra_sysfs_read_40795 pyra_sysfs_read 6 40795 NULL
118506 +rtw_add_beacon_40801 rtw_add_beacon 3-5 40801 NULL
118507 +add_action_40811 add_action 4 40811 NULL
118508 +nl80211_send_roamed_40825 nl80211_send_roamed 5-7 40825 NULL
118509 +nilfs_mdt_init_40849 nilfs_mdt_init 3 40849 NULL
118510 +v9fs_file_read_40858 v9fs_file_read 3 40858 NULL
118511 +read_file_queue_40895 read_file_queue 3 40895 NULL
118512 +waiters_read_40902 waiters_read 3 40902 NULL
118513 +isdn_add_channels_40905 isdn_add_channels 3 40905 NULL
118514 +gfs2_ea_find_40913 gfs2_ea_find 0 40913 NULL
118515 +vol_cdev_write_40915 vol_cdev_write 3 40915 NULL
118516 +snd_vx_create_40948 snd_vx_create 4 40948 NULL
118517 +rds_sendmsg_40976 rds_sendmsg 4 40976 NULL
118518 +insert_old_idx_40987 insert_old_idx 0 40987 NULL
118519 +il_dbgfs_fh_reg_read_40993 il_dbgfs_fh_reg_read 3 40993 NULL
118520 +iwl_dbgfs_scan_ant_rxchain_read_40999 iwl_dbgfs_scan_ant_rxchain_read 3 40999 NULL
118521 +mac80211_format_buffer_41010 mac80211_format_buffer 2 41010 NULL
118522 +mtd_block_isbad_41015 mtd_block_isbad 0 41015 NULL
118523 +__proc_dobitmasks_41029 __proc_dobitmasks 5 41029 NULL
118524 +_req_append_segment_41031 _req_append_segment 2 41031 NULL
118525 +mISDN_sock_sendmsg_41035 mISDN_sock_sendmsg 4 41035 NULL
118526 +ocfs2_xattr_index_block_find_41040 ocfs2_xattr_index_block_find 0 41040 NULL
118527 +lprocfs_write_frac_helper_41050 lprocfs_write_frac_helper 2 41050 NULL
118528 +vfs_listxattr_41062 vfs_listxattr 0 41062 NULL nohasharray
118529 +beacon_filtering_write_41062 beacon_filtering_write 3 41062 &vfs_listxattr_41062
118530 +sc_only_mode_read_41076 sc_only_mode_read 3 41076 NULL
118531 +cfg80211_inform_bss_frame_41078 cfg80211_inform_bss_frame 4 41078 NULL
118532 +nvme_map_user_pages_41093 nvme_map_user_pages 4-3 41093 NULL nohasharray
118533 +roccat_read_41093 roccat_read 3 41093 &nvme_map_user_pages_41093
118534 +dma_attach_41094 dma_attach 5-6 41094 NULL
118535 +provide_user_output_41105 provide_user_output 3 41105 NULL
118536 +f_audio_buffer_alloc_41110 f_audio_buffer_alloc 1 41110 NULL
118537 +ath10k_read_wmi_services_41112 ath10k_read_wmi_services 3 41112 NULL
118538 +v4l2_ctrl_new_int_menu_41151 v4l2_ctrl_new_int_menu 4 41151 NULL
118539 +tx_frag_mpdu_alloc_failed_read_41167 tx_frag_mpdu_alloc_failed_read 3 41167 NULL
118540 +dvb_ca_write_41171 dvb_ca_write 3 41171 NULL
118541 +netif_get_num_default_rss_queues_41187 netif_get_num_default_rss_queues 0 41187 NULL
118542 +request_irq_41192 request_irq 0 41192 NULL
118543 +dfs_file_write_41196 dfs_file_write 3 41196 NULL
118544 +nfs_page_array_len_41219 nfs_page_array_len 0-2-1 41219 NULL
118545 +cfg80211_process_disassoc_41231 cfg80211_process_disassoc 3 41231 NULL
118546 +hiddev_compat_ioctl_41255 hiddev_compat_ioctl 2 41255 NULL
118547 +erst_read_41260 erst_read 0 41260 NULL
118548 +alloc_context_41283 alloc_context 1 41283 NULL
118549 +of_count_phandle_with_args_41291 of_count_phandle_with_args 0 41291 NULL
118550 +o2hb_setup_one_bio_41341 o2hb_setup_one_bio 4 41341 NULL
118551 +twl_change_queue_depth_41342 twl_change_queue_depth 2 41342 NULL
118552 +rtw_android_set_block_41347 rtw_android_set_block 0 41347 NULL
118553 +ceph_do_getattr_41349 ceph_do_getattr 0 41349 NULL
118554 +cnic_init_id_tbl_41354 cnic_init_id_tbl 2 41354 NULL
118555 +kmp_init_41373 kmp_init 2 41373 NULL
118556 +isr_commands_read_41398 isr_commands_read 3 41398 NULL
118557 +rx_defrag_decrypt_failed_read_41411 rx_defrag_decrypt_failed_read 3 41411 NULL
118558 +xfs_iext_add_41422 xfs_iext_add 3 41422 NULL
118559 +isdn_ppp_fill_rq_41428 isdn_ppp_fill_rq 2 41428 NULL
118560 +lbs_rdrf_read_41431 lbs_rdrf_read 3 41431 NULL
118561 +iio_device_alloc_41440 iio_device_alloc 1 41440 NULL
118562 +ntfs_file_buffered_write_41442 ntfs_file_buffered_write 6-4 41442 NULL
118563 +pcpu_build_alloc_info_41443 pcpu_build_alloc_info 1-2-3 41443 NULL
118564 +se_io_cb_41461 se_io_cb 3 41461 NULL
118565 +layout_leb_in_gaps_41470 layout_leb_in_gaps 0 41470 NULL
118566 +snd_pcm_status_41472 snd_pcm_status 0 41472 NULL
118567 +rt2x00debug_write_rfcsr_41473 rt2x00debug_write_rfcsr 3 41473 NULL
118568 +bl_alloc_init_bio_41478 bl_alloc_init_bio 1 41478 NULL
118569 +kvm_unmap_hva_range_41484 kvm_unmap_hva_range 3-2 41484 NULL
118570 +wep_interrupt_read_41492 wep_interrupt_read 3 41492 NULL
118571 +hpfs_translate_name_41497 hpfs_translate_name 3 41497 NULL
118572 +xfrm_hash_new_size_41505 xfrm_hash_new_size 0-1 41505 NULL
118573 +SyS_preadv_41523 SyS_preadv 3 41523 NULL
118574 +dm_get_reserved_rq_based_ios_41529 dm_get_reserved_rq_based_ios 0 41529 NULL
118575 +tx_tx_frame_checksum_read_41553 tx_tx_frame_checksum_read 3 41553 NULL
118576 +ath6kl_endpoint_stats_read_41554 ath6kl_endpoint_stats_read 3 41554 NULL
118577 +nr_status_frames_41559 nr_status_frames 0-1 41559 NULL nohasharray
118578 +si476x_radio_fops_read_41559 si476x_radio_fops_read 3 41559 &nr_status_frames_41559
118579 +rng_dev_read_41581 rng_dev_read 3 41581 NULL
118580 +batadv_tvlv_container_ogm_append_41588 batadv_tvlv_container_ogm_append 4 41588 NULL
118581 +vga_io_r_41609 vga_io_r 0 41609 NULL
118582 +tcp_hdrlen_41610 tcp_hdrlen 0 41610 NULL
118583 +usb_endpoint_maxp_41613 usb_endpoint_maxp 0 41613 NULL nohasharray
118584 +lbs_bcnmiss_write_41613 lbs_bcnmiss_write 3 41613 &usb_endpoint_maxp_41613
118585 +a2mp_send_41615 a2mp_send 4 41615 NULL
118586 +lstcon_batch_list_41627 lstcon_batch_list 2 41627 NULL
118587 +mempool_create_kmalloc_pool_41650 mempool_create_kmalloc_pool 1 41650 NULL
118588 +rx_rx_pre_complt_read_41653 rx_rx_pre_complt_read 3 41653 NULL
118589 +get_std_timing_41654 get_std_timing 0 41654 NULL
118590 +ieee80211_if_fmt_bssid_41677 ieee80211_if_fmt_bssid 3 41677 NULL
118591 +fill_pcm_stream_name_41685 fill_pcm_stream_name 2 41685 NULL
118592 +lov_unpackmd_41701 lov_unpackmd 4 41701 NULL
118593 +fillonedir_41746 fillonedir 3 41746 NULL
118594 +iwl_dbgfs_bt_notif_read_41794 iwl_dbgfs_bt_notif_read 3 41794 NULL
118595 +hsi_alloc_controller_41802 hsi_alloc_controller 1 41802 NULL
118596 +rtw_android_get_macaddr_41812 rtw_android_get_macaddr 0 41812 NULL
118597 +sco_send_frame_41815 sco_send_frame 3 41815 NULL
118598 +ixgbe_dbg_netdev_ops_read_41839 ixgbe_dbg_netdev_ops_read 3 41839 NULL
118599 +do_ip_setsockopt_41852 do_ip_setsockopt 5 41852 NULL
118600 +keyctl_instantiate_key_41855 keyctl_instantiate_key 3 41855 NULL
118601 +pci_map_single_41869 pci_map_single 0 41869 NULL
118602 +v_APCI3120_InterruptDmaMoveBlock16bit_41914 v_APCI3120_InterruptDmaMoveBlock16bit 4 41914 NULL
118603 +get_fdb_entries_41916 get_fdb_entries 3 41916 NULL
118604 +ext4_da_write_inline_data_begin_41935 ext4_da_write_inline_data_begin 3-4 41935 NULL
118605 +sci_rxfill_41945 sci_rxfill 0 41945 NULL
118606 +read_gssp_41947 read_gssp 3 41947 NULL
118607 +ocfs2_xattr_bucket_get_name_value_41949 ocfs2_xattr_bucket_get_name_value 0 41949 NULL
118608 +portnames_read_41958 portnames_read 3 41958 NULL
118609 +ubi_self_check_all_ff_41959 ubi_self_check_all_ff 0 41959 NULL
118610 +dst_mtu_41969 dst_mtu 0 41969 NULL
118611 +cx24116_writeregN_41975 cx24116_writeregN 4 41975 NULL
118612 +ubi_io_is_bad_41983 ubi_io_is_bad 0 41983 NULL
118613 +pool_allocate_42012 pool_allocate 3 42012 NULL
118614 +spidev_sync_read_42014 spidev_sync_read 0 42014 NULL
118615 +rs_sta_dbgfs_scale_table_write_42017 rs_sta_dbgfs_scale_table_write 3 42017 NULL
118616 +acpi_ut_create_buffer_object_42030 acpi_ut_create_buffer_object 1 42030 NULL
118617 +__hwahc_op_set_gtk_42038 __hwahc_op_set_gtk 4 42038 NULL
118618 +alloc_trace_kprobe_42041 alloc_trace_kprobe 6 42041 NULL
118619 +irda_sendmsg_ultra_42047 irda_sendmsg_ultra 4 42047 NULL
118620 +jffs2_do_link_42048 jffs2_do_link 6 42048 NULL
118621 +ps_poll_upsd_max_ap_turn_read_42050 ps_poll_upsd_max_ap_turn_read 3 42050 NULL
118622 +InterfaceTransmitPacket_42058 InterfaceTransmitPacket 3 42058 NULL
118623 +scsi_execute_req_42088 scsi_execute_req 5 42088 NULL
118624 +sk_chk_filter_42095 sk_chk_filter 2 42095 NULL
118625 +submit_inquiry_42108 submit_inquiry 3 42108 NULL
118626 +dw_dma_cyclic_prep_42113 dw_dma_cyclic_prep 3-4 42113 NULL
118627 +blk_ioctl_zeroout_42160 blk_ioctl_zeroout 3 42160 NULL
118628 +mmc_align_data_size_42161 mmc_align_data_size 0-2 42161 NULL
118629 +read_file_base_eeprom_42168 read_file_base_eeprom 3 42168 NULL
118630 +oprofilefs_str_to_user_42182 oprofilefs_str_to_user 3 42182 NULL
118631 +write_file_beacon_42185 write_file_beacon 3 42185 NULL
118632 +get_znodes_to_commit_42201 get_znodes_to_commit 0 42201 NULL
118633 +pla_ocp_read_42235 pla_ocp_read 3 42235 NULL
118634 +rx_defrag_need_decrypt_read_42253 rx_defrag_need_decrypt_read 3 42253 NULL
118635 +find_last_bit_42260 find_last_bit 0 42260 NULL
118636 +__pcpu_size_to_slot_42271 __pcpu_size_to_slot 0 42271 NULL
118637 +__tty_buffer_request_room_42276 __tty_buffer_request_room 2-0 42276 NULL
118638 +snd_pcm_hw_param_value_max_42280 snd_pcm_hw_param_value_max 0 42280 NULL
118639 +__cpus_weight_42299 __cpus_weight 0 42299 NULL
118640 +sel_read_perm_42302 sel_read_perm 3 42302 NULL
118641 +sctp_setsockopt_del_key_42304 sctp_setsockopt_del_key 3 42304 NULL nohasharray
118642 +ulong_read_file_42304 ulong_read_file 3 42304 &sctp_setsockopt_del_key_42304
118643 +xfs_vm_readpages_42308 xfs_vm_readpages 4 42308 NULL
118644 +hysdn_conf_read_42324 hysdn_conf_read 3 42324 NULL
118645 +tcp_sync_mss_42330 tcp_sync_mss 2-0 42330 NULL
118646 +ide_raw_taskfile_42355 ide_raw_taskfile 4 42355 NULL
118647 +drbd_md_last_sector_42378 drbd_md_last_sector 0 42378 NULL
118648 +il_dbgfs_disable_ht40_read_42386 il_dbgfs_disable_ht40_read 3 42386 NULL
118649 +msnd_fifo_read_42406 msnd_fifo_read 0-3 42406 NULL
118650 +krng_get_random_42420 krng_get_random 3 42420 NULL
118651 +gsm_data_alloc_42437 gsm_data_alloc 3 42437 NULL
118652 +spr_wm_latency_write_42441 spr_wm_latency_write 3 42441 NULL
118653 +key_conf_keyidx_read_42443 key_conf_keyidx_read 3 42443 NULL
118654 +snd_pcm_action_group_42452 snd_pcm_action_group 0 42452 NULL
118655 +tcm_loop_change_queue_depth_42454 tcm_loop_change_queue_depth 2 42454 NULL
118656 +kuc_free_42455 kuc_free 2 42455 NULL
118657 +__simple_xattr_set_42474 __simple_xattr_set 4 42474 NULL
118658 +omfs_readpages_42490 omfs_readpages 4 42490 NULL
118659 +bypass_write_42498 bypass_write 3 42498 NULL
118660 +SyS_mincore_42511 SyS_mincore 2-1 42511 NULL
118661 +kvm_write_wall_clock_42520 kvm_write_wall_clock 2 42520 NULL
118662 +dio_bio_complete_42524 dio_bio_complete 0 42524 NULL
118663 +smk_write_netlbladdr_42525 smk_write_netlbladdr 3 42525 NULL
118664 +self_check_ec_hdr_42528 self_check_ec_hdr 0 42528 NULL
118665 +dbAllocNear_42546 dbAllocNear 0 42546 NULL
118666 +ath6kl_wmi_proc_events_vif_42549 ath6kl_wmi_proc_events_vif 5 42549 NULL
118667 +udp_recvmsg_42558 udp_recvmsg 4 42558 NULL
118668 +iwl_print_event_log_42566 iwl_print_event_log 7-5-0 42566 NULL
118669 +xfrm_new_hash_mask_42579 xfrm_new_hash_mask 0-1 42579 NULL
118670 +oom_score_adj_write_42594 oom_score_adj_write 3 42594 NULL
118671 +ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout_42635 ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout 3 42635 NULL
118672 +scsi_activate_tcq_42640 scsi_activate_tcq 2 42640 NULL
118673 +br_mdb_rehash_42643 br_mdb_rehash 2 42643 NULL
118674 +_regmap_raw_write_42652 _regmap_raw_write 4-2 42652 NULL
118675 +request_key_and_link_42693 request_key_and_link 4 42693 NULL
118676 +vb2_read_42703 vb2_read 3 42703 NULL
118677 +dvb_demux_ioctl_42733 dvb_demux_ioctl 2 42733 NULL
118678 +set_aoe_iflist_42737 set_aoe_iflist 2 42737 NULL
118679 +ax25_setsockopt_42740 ax25_setsockopt 5 42740 NULL
118680 +dpm_sysfs_add_42756 dpm_sysfs_add 0 42756 NULL
118681 +x25_recvmsg_42777 x25_recvmsg 4 42777 NULL
118682 +snd_midi_event_decode_42780 snd_midi_event_decode 0 42780 NULL
118683 +cryptd_hash_setkey_42781 cryptd_hash_setkey 3 42781 NULL nohasharray
118684 +isku_sysfs_read_info_42781 isku_sysfs_read_info 6 42781 &cryptd_hash_setkey_42781
118685 +elfcorehdr_read_notes_42786 elfcorehdr_read_notes 2 42786 NULL
118686 +koneplus_sysfs_read_42792 koneplus_sysfs_read 6 42792 NULL
118687 +ntfs_attr_extend_allocation_42796 ntfs_attr_extend_allocation 0 42796 NULL
118688 +fw_device_op_compat_ioctl_42804 fw_device_op_compat_ioctl 2 42804 NULL
118689 +drm_ioctl_42813 drm_ioctl 2 42813 NULL
118690 +iwl_dbgfs_ucode_bt_stats_read_42820 iwl_dbgfs_ucode_bt_stats_read 3 42820 NULL
118691 +set_arg_42824 set_arg 3 42824 NULL
118692 +si476x_radio_read_rsq_blob_42827 si476x_radio_read_rsq_blob 3 42827 NULL
118693 +ocfs2_clusters_for_bytes_42872 ocfs2_clusters_for_bytes 0-2 42872 NULL
118694 +nvme_trans_unit_serial_page_42879 nvme_trans_unit_serial_page 4 42879 NULL
118695 +xpc_kmalloc_cacheline_aligned_42895 xpc_kmalloc_cacheline_aligned 1 42895 NULL
118696 +hd_end_request_42904 hd_end_request 2 42904 NULL
118697 +sta_last_rx_rate_read_42909 sta_last_rx_rate_read 3 42909 NULL
118698 +sctp_getsockopt_maxburst_42941 sctp_getsockopt_maxburst 2 42941 NULL
118699 +vx_reset_chk_42946 vx_reset_chk 0 42946 NULL
118700 +blkdev_direct_IO_42962 blkdev_direct_IO 4 42962 NULL
118701 +ntb_setup_snb_msix_42971 ntb_setup_snb_msix 2-0 42971 NULL
118702 +compat_udpv6_setsockopt_42981 compat_udpv6_setsockopt 5 42981 NULL
118703 +nfs_idmap_get_desc_42990 nfs_idmap_get_desc 4-2 42990 NULL nohasharray
118704 +rtw_os_xmit_resource_alloc_42990 rtw_os_xmit_resource_alloc 3 42990 &nfs_idmap_get_desc_42990
118705 +isr_rx_mem_overflow_read_43025 isr_rx_mem_overflow_read 3 43025 NULL
118706 +wep_default_key_count_read_43035 wep_default_key_count_read 3 43035 NULL
118707 +nouveau_gpuobj_create__43072 nouveau_gpuobj_create_ 9 43072 NULL
118708 +nfs_map_group_to_gid_43082 nfs_map_group_to_gid 3 43082 NULL
118709 +_xfer_secondary_pool_43089 _xfer_secondary_pool 2 43089 NULL
118710 +sysfs_create_file_ns_43103 sysfs_create_file_ns 0 43103 NULL
118711 +ieee80211_if_fmt_drop_unencrypted_43107 ieee80211_if_fmt_drop_unencrypted 3 43107 NULL
118712 +calculate_node_totalpages_43118 calculate_node_totalpages 2-3 43118 NULL
118713 +e1000_request_msix_43134 e1000_request_msix 0 43134 NULL
118714 +read_file_dfs_43145 read_file_dfs 3 43145 NULL
118715 +cfs_cpt_table_alloc_43159 cfs_cpt_table_alloc 1 43159 NULL
118716 +usb_string_sub_43164 usb_string_sub 0 43164 NULL
118717 +il_dbgfs_power_save_status_read_43165 il_dbgfs_power_save_status_read 3 43165 NULL
118718 +ath6kl_set_assoc_req_ies_43185 ath6kl_set_assoc_req_ies 3 43185 NULL
118719 +ext4_xattr_ibody_get_43200 ext4_xattr_ibody_get 0 43200 NULL
118720 +uio_write_43202 uio_write 3 43202 NULL
118721 +iso_callback_43208 iso_callback 3 43208 NULL
118722 +ath10k_p2p_calc_noa_ie_len_43209 ath10k_p2p_calc_noa_ie_len 0 43209 NULL
118723 +f2fs_acl_from_disk_43210 f2fs_acl_from_disk 2 43210 NULL
118724 +atomic_long_add_return_43217 atomic_long_add_return 1-0 43217 NULL
118725 +batadv_tt_tvlv_unicast_handler_v1_43239 batadv_tt_tvlv_unicast_handler_v1 5 43239 NULL
118726 +vmemmap_alloc_block_43245 vmemmap_alloc_block 1 43245 NULL
118727 +ide_end_rq_43269 ide_end_rq 4 43269 NULL
118728 +nilfs_direct_IO_43271 nilfs_direct_IO 4 43271 NULL
118729 +evtchn_write_43278 evtchn_write 3 43278 NULL
118730 +filemap_write_and_wait_range_43279 filemap_write_and_wait_range 0 43279 NULL
118731 +mpage_alloc_43299 mpage_alloc 3 43299 NULL
118732 +mmu_set_spte_43327 mmu_set_spte 6-7 43327 NULL
118733 +__ext4_get_inode_loc_43332 __ext4_get_inode_loc 0 43332 NULL
118734 +xenfb_write_43412 xenfb_write 3 43412 NULL
118735 +__alloc_bootmem_low_43423 __alloc_bootmem_low 1 43423 NULL nohasharray
118736 +msi_capability_init_43423 msi_capability_init 0 43423 &__alloc_bootmem_low_43423
118737 +usb_alloc_urb_43436 usb_alloc_urb 1 43436 NULL
118738 +ath6kl_wmi_roam_tbl_event_rx_43440 ath6kl_wmi_roam_tbl_event_rx 3 43440 NULL
118739 +usb_string_43443 usb_string 0 43443 NULL nohasharray
118740 +usemap_size_43443 usemap_size 0-1-2 43443 &usb_string_43443
118741 +get_vm_area_size_43444 get_vm_area_size 0 43444 NULL
118742 +fs_path_prepare_for_add_43453 fs_path_prepare_for_add 2 43453 NULL
118743 +nvme_trans_device_id_page_43466 nvme_trans_device_id_page 4 43466 NULL
118744 +tx_tx_data_prepared_read_43497 tx_tx_data_prepared_read 3 43497 NULL
118745 +ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime_43505 ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime 3 43505 NULL
118746 +dvb_ca_en50221_io_write_43533 dvb_ca_en50221_io_write 3 43533 NULL
118747 +read_events_43534 read_events 3 43534 NULL
118748 +cachefiles_daemon_write_43535 cachefiles_daemon_write 3 43535 NULL
118749 +tx_frag_failed_read_43540 tx_frag_failed_read 3 43540 NULL
118750 +rpc_malloc_43573 rpc_malloc 2 43573 NULL
118751 +handle_frequent_errors_43599 handle_frequent_errors 4 43599 NULL
118752 +lpfc_idiag_drbacc_read_reg_43606 lpfc_idiag_drbacc_read_reg 0-3 43606 NULL
118753 +proc_read_43614 proc_read 3 43614 NULL
118754 +disable_dma_on_even_43618 disable_dma_on_even 0 43618 NULL
118755 +alloc_thread_groups_43625 alloc_thread_groups 2 43625 NULL
118756 +random_write_43656 random_write 3 43656 NULL
118757 +bio_integrity_tag_43658 bio_integrity_tag 3 43658 NULL
118758 +ext4_acl_count_43659 ext4_acl_count 0-1 43659 NULL
118759 +write_file_tx99_power_43670 write_file_tx99_power 3 43670 NULL
118760 +dmam_declare_coherent_memory_43679 dmam_declare_coherent_memory 4 43679 NULL
118761 +max77693_bulk_write_43698 max77693_bulk_write 2-3 43698 NULL
118762 +drbd_md_first_sector_43729 drbd_md_first_sector 0 43729 NULL
118763 +snd_rme32_playback_copy_43732 snd_rme32_playback_copy 5 43732 NULL
118764 +fuse_conn_congestion_threshold_write_43736 fuse_conn_congestion_threshold_write 3 43736 NULL
118765 +gigaset_initcs_43753 gigaset_initcs 2 43753 NULL
118766 +sctp_setsockopt_active_key_43755 sctp_setsockopt_active_key 3 43755 NULL
118767 +generic_file_direct_write_43770 generic_file_direct_write 0 43770 NULL
118768 +ocfs2_xattr_get_value_outside_43787 ocfs2_xattr_get_value_outside 0 43787 NULL nohasharray
118769 +byte_pos_43787 byte_pos 0 43787 &ocfs2_xattr_get_value_outside_43787
118770 +btrfs_copy_from_user_43806 btrfs_copy_from_user 3-1-0 43806 NULL
118771 +ieee80211_if_fmt_element_ttl_43825 ieee80211_if_fmt_element_ttl 3 43825 NULL
118772 +ieee80211_alloc_hw_43829 ieee80211_alloc_hw 1 43829 NULL
118773 +read_flush_43851 read_flush 3 43851 NULL
118774 +pm860x_bulk_write_43875 pm860x_bulk_write 2-3 43875 NULL
118775 +ec_dbgfs_cmd_write_43895 ec_dbgfs_cmd_write 3 43895 NULL
118776 +SendString_43928 SendString 3 43928 NULL
118777 +stats_dot11RTSFailureCount_read_43948 stats_dot11RTSFailureCount_read 3 43948 NULL
118778 +__get_required_blob_size_43980 __get_required_blob_size 0-3-2 43980 NULL
118779 +nla_reserve_43984 nla_reserve 3 43984 NULL
118780 +__clkdev_alloc_43990 __clkdev_alloc 1 43990 NULL
118781 +scsi_command_size_43992 scsi_command_size 0 43992 NULL nohasharray
118782 +bcm_recvmsg_43992 bcm_recvmsg 4 43992 &scsi_command_size_43992 nohasharray
118783 +kvm_read_guest_virt_43992 kvm_read_guest_virt 4-2 43992 &bcm_recvmsg_43992
118784 +ulist_add_43994 ulist_add 0 43994 NULL
118785 +emit_flags_44006 emit_flags 4-3 44006 NULL
118786 +write_flush_procfs_44011 write_flush_procfs 3 44011 NULL
118787 +fru_strlen_44046 fru_strlen 0 44046 NULL
118788 +ath9k_def_dump_modal_eeprom_44078 ath9k_def_dump_modal_eeprom 3-2-0 44078 NULL
118789 +SYSC_add_key_44079 SYSC_add_key 4 44079 NULL
118790 +pci_msix_vec_count_44093 pci_msix_vec_count 0 44093 NULL
118791 +xlog_recover_add_to_cont_trans_44102 xlog_recover_add_to_cont_trans 4 44102 NULL
118792 +skb_frag_dma_map_44112 skb_frag_dma_map 0 44112 NULL
118793 +tracing_set_trace_read_44122 tracing_set_trace_read 3 44122 NULL nohasharray
118794 +file_remove_suid_44122 file_remove_suid 0 44122 &tracing_set_trace_read_44122
118795 +SyS_process_vm_writev_44129 SyS_process_vm_writev 3-5 44129 NULL
118796 +ttm_get_pages_44142 ttm_get_pages 2 44142 NULL
118797 +scsi_get_resid_44147 scsi_get_resid 0 44147 NULL
118798 +ubifs_find_dirty_idx_leb_44169 ubifs_find_dirty_idx_leb 0 44169 NULL
118799 +ocfs2_xattr_bucket_find_44174 ocfs2_xattr_bucket_find 0 44174 NULL
118800 +SYSC_set_mempolicy_44176 SYSC_set_mempolicy 3 44176 NULL
118801 +handle_eviocgbit_44193 handle_eviocgbit 3 44193 NULL
118802 +srp_alloc_iu_44227 srp_alloc_iu 2 44227 NULL
118803 +scsi_track_queue_full_44239 scsi_track_queue_full 2 44239 NULL
118804 +sigma_action_write_regmap_44240 sigma_action_write_regmap 3 44240 NULL
118805 +device_create_file_44285 device_create_file 0 44285 NULL
118806 +ath6kl_keepalive_read_44303 ath6kl_keepalive_read 3 44303 NULL
118807 +bitmap_scnprintf_44318 bitmap_scnprintf 0-2 44318 NULL
118808 +dispatch_proc_write_44320 dispatch_proc_write 3 44320 NULL
118809 +ccp_init_data_44324 ccp_init_data 5 44324 NULL
118810 +rs_init_44327 rs_init 1 44327 NULL
118811 +blk_queue_init_tags_44355 blk_queue_init_tags 2 44355 NULL nohasharray
118812 +nfs_fscache_get_super_cookie_44355 nfs_fscache_get_super_cookie 3 44355 &blk_queue_init_tags_44355
118813 +rts_threshold_read_44384 rts_threshold_read 3 44384 NULL
118814 +mtip_hw_read_flags_44396 mtip_hw_read_flags 3 44396 NULL
118815 +aoedev_flush_44398 aoedev_flush 2 44398 NULL
118816 +strlcpy_44400 strlcpy 3 44400 NULL
118817 +drm_buffer_alloc_44405 drm_buffer_alloc 2 44405 NULL
118818 +osst_do_scsi_44410 osst_do_scsi 4 44410 NULL
118819 +ieee80211_if_read_rc_rateidx_mcs_mask_5ghz_44423 ieee80211_if_read_rc_rateidx_mcs_mask_5ghz 3 44423 NULL
118820 +write_file_debug_44476 write_file_debug 3 44476 NULL
118821 +btrfs_chunk_item_size_44478 btrfs_chunk_item_size 0-1 44478 NULL
118822 +sdio_align_size_44489 sdio_align_size 0-2 44489 NULL
118823 +bio_advance_44496 bio_advance 2 44496 NULL
118824 +ieee80211_if_read_dropped_frames_ttl_44500 ieee80211_if_read_dropped_frames_ttl 3 44500 NULL
118825 +ac_register_board_44504 ac_register_board 3 44504 NULL
118826 +security_getprocattr_44505 security_getprocattr 0 44505 NULL nohasharray
118827 +iwl_dbgfs_sram_read_44505 iwl_dbgfs_sram_read 3 44505 &security_getprocattr_44505
118828 +spidev_write_44510 spidev_write 3 44510 NULL
118829 +SyS_io_getevents_44519 SyS_io_getevents 3 44519 NULL
118830 +ieee80211_rx_mgmt_assoc_resp_44525 ieee80211_rx_mgmt_assoc_resp 3 44525 NULL
118831 +comm_write_44537 comm_write 3 44537 NULL
118832 +snd_pcm_drop_44542 snd_pcm_drop 0 44542 NULL
118833 +dgrp_config_proc_write_44571 dgrp_config_proc_write 3 44571 NULL
118834 +btrfs_set_extent_delalloc_44587 btrfs_set_extent_delalloc 0 44587 NULL
118835 +nouveau_perfmon_create__44602 nouveau_perfmon_create_ 4 44602 NULL
118836 +alloc_ctrl_packet_44667 alloc_ctrl_packet 1 44667 NULL
118837 +mpi_resize_44674 mpi_resize 2 44674 NULL
118838 +sysfs_create_link_44685 sysfs_create_link 0 44685 NULL
118839 +ts_read_44687 ts_read 3 44687 NULL
118840 +lov_emerg_alloc_44698 lov_emerg_alloc 1 44698 NULL
118841 +C_SYSC_select_44701 C_SYSC_select 1 44701 NULL
118842 +__generic_block_fiemap_44713 __generic_block_fiemap 4 44713 NULL nohasharray
118843 +xfer_to_user_44713 xfer_to_user 3 44713 &__generic_block_fiemap_44713
118844 +_zd_iowrite32v_locked_44725 _zd_iowrite32v_locked 3 44725 NULL
118845 +clusterip_proc_write_44729 clusterip_proc_write 3 44729 NULL
118846 +fib_count_nexthops_44730 fib_count_nexthops 0 44730 NULL
118847 +efx_wanted_parallelism_44732 efx_wanted_parallelism 0 44732 NULL
118848 +key_tx_rx_count_read_44742 key_tx_rx_count_read 3 44742 NULL
118849 +bch_bio_max_sectors_44755 bch_bio_max_sectors 0 44755 NULL
118850 +tnode_new_44757 tnode_new 3 44757 NULL nohasharray
118851 +pty_write_44757 pty_write 3 44757 &tnode_new_44757
118852 +__videobuf_copy_stream_44769 __videobuf_copy_stream 4-0 44769 NULL
118853 +handsfree_ramp_44777 handsfree_ramp 2 44777 NULL
118854 +irq_domain_add_legacy_44781 irq_domain_add_legacy 4-2 44781 NULL
118855 +sctp_setsockopt_44788 sctp_setsockopt 5 44788 NULL
118856 +rx_dropped_read_44799 rx_dropped_read 3 44799 NULL
118857 +qla4xxx_alloc_work_44813 qla4xxx_alloc_work 2 44813 NULL
118858 +force_static_address_write_44819 force_static_address_write 3 44819 NULL
118859 +mei_cl_read_start_44824 mei_cl_read_start 2 44824 NULL
118860 +rmap_write_protect_44833 rmap_write_protect 2 44833 NULL
118861 +sisusb_write_44834 sisusb_write 3 44834 NULL
118862 +kvm_read_hva_44847 kvm_read_hva 3 44847 NULL
118863 +qib_verbs_send_dma_44850 qib_verbs_send_dma 6 44850 NULL
118864 +copydesc_user_44855 copydesc_user 3 44855 NULL
118865 +set_advertising_44870 set_advertising 4 44870 NULL
118866 +init_rs_44873 init_rs 1 44873 NULL
118867 +skb_availroom_44883 skb_availroom 0 44883 NULL
118868 +do_tty_write_44896 do_tty_write 5 44896 NULL
118869 +regmap_spi_read_44921 regmap_spi_read 3-5 44921 NULL
118870 +tx_queue_status_read_44978 tx_queue_status_read 3 44978 NULL
118871 +bytepos_delta_45017 bytepos_delta 0 45017 NULL
118872 +ptrace_writedata_45021 ptrace_writedata 4 45021 NULL
118873 +dm_kvzalloc_45025 dm_kvzalloc 1 45025 NULL
118874 +sysfs_do_create_link_sd_45057 sysfs_do_create_link_sd 0 45057 NULL
118875 +sel_write_user_45060 sel_write_user 3 45060 NULL
118876 +snd_mixart_BA0_read_45069 snd_mixart_BA0_read 5 45069 NULL
118877 +snd_card_new_45104 snd_card_new 5 45104 NULL
118878 +kvm_mmu_page_get_gfn_45110 kvm_mmu_page_get_gfn 0-2 45110 NULL
118879 +pwr_missing_bcns_cnt_read_45113 pwr_missing_bcns_cnt_read 3 45113 NULL
118880 +usbdev_read_45114 usbdev_read 3 45114 NULL
118881 +send_to_tty_45141 send_to_tty 3 45141 NULL
118882 +cfs_trace_daemon_command_usrstr_45147 cfs_trace_daemon_command_usrstr 2 45147 NULL
118883 +gen_bitmask_string_45149 gen_bitmask_string 6 45149 NULL
118884 +device_write_45156 device_write 3 45156 NULL nohasharray
118885 +ocfs2_remove_inode_range_45156 ocfs2_remove_inode_range 3 45156 &device_write_45156
118886 +tomoyo_write_self_45161 tomoyo_write_self 3 45161 NULL
118887 +sta_agg_status_write_45164 sta_agg_status_write 3 45164 NULL
118888 +sctp_pack_cookie_45190 sctp_pack_cookie 6 45190 NULL nohasharray
118889 +snd_sb_csp_load_user_45190 snd_sb_csp_load_user 3 45190 &sctp_pack_cookie_45190
118890 +iso_alloc_urb_45206 iso_alloc_urb 4-5 45206 NULL
118891 +spi_alloc_master_45223 spi_alloc_master 2 45223 NULL
118892 +ieee80211_if_read_peer_45233 ieee80211_if_read_peer 3 45233 NULL
118893 +event_enable_write_45238 event_enable_write 3 45238 NULL
118894 +prism2_pda_proc_read_45246 prism2_pda_proc_read 3 45246 NULL
118895 +input_mt_init_slots_45279 input_mt_init_slots 2 45279 NULL
118896 +gfs2_fiemap_45282 gfs2_fiemap 4 45282 NULL
118897 +snd_pcm_oss_sync1_45298 snd_pcm_oss_sync1 2 45298 NULL
118898 +e1000_tx_map_45309 e1000_tx_map 5 45309 NULL
118899 +copy_vm86_regs_from_user_45340 copy_vm86_regs_from_user 3 45340 NULL
118900 +brcmf_sdio_died_dump_45359 brcmf_sdio_died_dump 3 45359 NULL
118901 +null_alloc_repbuf_45375 null_alloc_repbuf 3 45375 NULL
118902 +count_skb_frag_slots_45395 count_skb_frag_slots 0 45395 NULL
118903 +sock_recv_errqueue_45412 sock_recv_errqueue 3 45412 NULL
118904 +ieee80211_if_fmt_dot11MeshHWMProotInterval_45421 ieee80211_if_fmt_dot11MeshHWMProotInterval 3 45421 NULL
118905 +ll_iocontrol_register_45430 ll_iocontrol_register 2 45430 NULL
118906 +tty_buffer_alloc_45437 tty_buffer_alloc 2 45437 NULL
118907 +rds_ib_set_wr_signal_state_45463 rds_ib_set_wr_signal_state 0 45463 NULL
118908 +tracing_read_dyn_info_45468 tracing_read_dyn_info 3 45468 NULL
118909 +snd_pcm_hwsync_45479 snd_pcm_hwsync 0 45479 NULL
118910 +rds_message_copy_from_user_45510 rds_message_copy_from_user 3 45510 NULL
118911 +copy_macs_45534 copy_macs 4 45534 NULL
118912 +nla_attr_size_45545 nla_attr_size 0-1 45545 NULL
118913 +v9fs_direct_read_45546 v9fs_direct_read 3 45546 NULL
118914 +cx18_copy_mdl_to_user_45549 cx18_copy_mdl_to_user 4 45549 NULL
118915 +stats_dot11ACKFailureCount_read_45558 stats_dot11ACKFailureCount_read 3 45558 NULL
118916 +_regmap_bus_raw_write_45559 _regmap_bus_raw_write 2 45559 NULL
118917 +posix_acl_xattr_size_45561 posix_acl_xattr_size 0-1 45561 NULL
118918 +venus_rmdir_45564 venus_rmdir 4 45564 NULL
118919 +ath6kl_keepalive_write_45600 ath6kl_keepalive_write 3 45600 NULL
118920 +hidraw_get_report_45609 hidraw_get_report 3 45609 NULL
118921 +compat_mpctl_ioctl_45671 compat_mpctl_ioctl 2 45671 NULL
118922 +dgram_sendmsg_45679 dgram_sendmsg 4 45679 NULL
118923 +smk_write_ambient_45691 smk_write_ambient 3 45691 NULL
118924 +bscnl_emit_45699 bscnl_emit 2-5-0 45699 NULL nohasharray
118925 +unix_dgram_sendmsg_45699 unix_dgram_sendmsg 4 45699 &bscnl_emit_45699
118926 +sg_proc_write_adio_45704 sg_proc_write_adio 3 45704 NULL
118927 +snd_cs46xx_io_read_45734 snd_cs46xx_io_read 5 45734 NULL
118928 +rw_copy_check_uvector_45748 rw_copy_check_uvector 3-0 45748 NULL nohasharray
118929 +v4l2_ctrl_new_std_45748 v4l2_ctrl_new_std 5 45748 &rw_copy_check_uvector_45748
118930 +lkdtm_debugfs_read_45752 lkdtm_debugfs_read 3 45752 NULL
118931 +alloc_ts_config_45775 alloc_ts_config 1 45775 NULL
118932 +osc_checksum_type_seq_write_45785 osc_checksum_type_seq_write 3 45785 NULL
118933 +raw_setsockopt_45800 raw_setsockopt 5 45800 NULL
118934 +rds_tcp_inc_copy_to_user_45804 rds_tcp_inc_copy_to_user 3 45804 NULL
118935 +lbs_rdbbp_read_45805 lbs_rdbbp_read 3 45805 NULL
118936 +pcpu_alloc_alloc_info_45813 pcpu_alloc_alloc_info 1-2 45813 NULL
118937 +ll_max_readahead_mb_seq_write_45815 ll_max_readahead_mb_seq_write 3 45815 NULL
118938 +memcg_update_cache_size_45828 memcg_update_cache_size 2 45828 NULL
118939 +ipv6_recv_rxpmtu_45830 ipv6_recv_rxpmtu 3 45830 NULL
118940 +insert_state_45848 insert_state 0 45848 NULL
118941 +x509_process_extension_45854 x509_process_extension 5 45854 NULL
118942 +efx_tx_queue_insert_45859 efx_tx_queue_insert 2 45859 NULL
118943 +isdn_write_45863 isdn_write 3 45863 NULL
118944 +get_rdac_req_45882 get_rdac_req 3 45882 NULL
118945 +ocfs2_xattr_block_find_45891 ocfs2_xattr_block_find 0 45891 NULL
118946 +cfs_cpt_weight_45903 cfs_cpt_weight 0 45903 NULL
118947 +wm_adsp_region_to_reg_45915 wm_adsp_region_to_reg 0-2 45915 NULL
118948 +dbgfs_frame_45917 dbgfs_frame 3 45917 NULL
118949 +btree_keys_cachelines_45928 btree_keys_cachelines 0 45928 NULL
118950 +alloc_mr_45935 alloc_mr 1 45935 NULL
118951 +copy_to_45969 copy_to 3 45969 NULL
118952 +rb_simple_read_45972 rb_simple_read 3 45972 NULL
118953 +ioat2_dca_count_dca_slots_45984 ioat2_dca_count_dca_slots 0 45984 NULL
118954 +kobject_init_and_add_46003 kobject_init_and_add 0 46003 NULL
118955 +sierra_setup_urb_46029 sierra_setup_urb 5 46029 NULL
118956 +get_free_entries_46030 get_free_entries 1 46030 NULL nohasharray
118957 +fnic_reset_stats_read_46030 fnic_reset_stats_read 3 46030 &get_free_entries_46030
118958 +__access_remote_vm_46031 __access_remote_vm 0 46031 NULL
118959 +snd_emu10k1x_ptr_read_46049 snd_emu10k1x_ptr_read 0 46049 NULL
118960 +__ocfs2_move_extent_46060 __ocfs2_move_extent 3-4 46060 NULL nohasharray
118961 +dma_tx_errors_read_46060 dma_tx_errors_read 3 46060 &__ocfs2_move_extent_46060
118962 +sel_commit_bools_write_46077 sel_commit_bools_write 3 46077 NULL
118963 +memcg_update_array_size_46111 memcg_update_array_size 1 46111 NULL nohasharray
118964 +il3945_ucode_general_stats_read_46111 il3945_ucode_general_stats_read 3 46111 &memcg_update_array_size_46111
118965 +C_SYSC_writev_46113 C_SYSC_writev 3 46113 NULL
118966 +mlx4_ib_alloc_fast_reg_page_list_46119 mlx4_ib_alloc_fast_reg_page_list 2 46119 NULL
118967 +rtw_buf_update_46138 rtw_buf_update 4 46138 NULL
118968 +vb2_dma_sg_get_userptr_46146 vb2_dma_sg_get_userptr 3-2 46146 NULL
118969 +__netlink_change_ngroups_46156 __netlink_change_ngroups 2 46156 NULL
118970 +twl_direction_out_46182 twl_direction_out 2 46182 NULL
118971 +vxge_os_dma_malloc_46184 vxge_os_dma_malloc 2 46184 NULL
118972 +fq_resize_46195 fq_resize 2 46195 NULL
118973 +add_conn_list_46197 add_conn_list 3-0 46197 NULL
118974 +i2400m_op_msg_from_user_46213 i2400m_op_msg_from_user 4 46213 NULL
118975 +tm6000_i2c_recv_regs_46215 tm6000_i2c_recv_regs 5 46215 NULL
118976 +dsp_write_46218 dsp_write 2 46218 NULL
118977 +hash_netiface4_expire_46226 hash_netiface4_expire 4 46226 NULL
118978 +xen_setup_msi_irqs_46245 xen_setup_msi_irqs 2 46245 NULL
118979 +mpi_read_raw_data_46248 mpi_read_raw_data 2 46248 NULL
118980 +sg_proc_write_dressz_46316 sg_proc_write_dressz 3 46316 NULL
118981 +C_SYSC_ppoll_46319 C_SYSC_ppoll 2 46319 NULL
118982 +compat_SyS_readv_46328 compat_SyS_readv 3 46328 NULL nohasharray
118983 +__hwahc_dev_set_key_46328 __hwahc_dev_set_key 5 46328 &compat_SyS_readv_46328
118984 +iwl_dbgfs_chain_noise_read_46355 iwl_dbgfs_chain_noise_read 3 46355 NULL
118985 +smk_write_direct_46363 smk_write_direct 3 46363 NULL
118986 +fuse_file_aio_write_46399 fuse_file_aio_write 4 46399 NULL
118987 +crypto_ablkcipher_reqsize_46411 crypto_ablkcipher_reqsize 0 46411 NULL
118988 +ttm_page_pool_get_pages_46431 ttm_page_pool_get_pages 0-5 46431 NULL
118989 +cfs_power2_roundup_46433 cfs_power2_roundup 0-1 46433 NULL
118990 +cp210x_set_config_46447 cp210x_set_config 4 46447 NULL
118991 +il_dbgfs_clear_traffic_stats_write_46458 il_dbgfs_clear_traffic_stats_write 3 46458 NULL
118992 +filldir64_46469 filldir64 3 46469 NULL
118993 +fill_in_write_vector_46498 fill_in_write_vector 0 46498 NULL
118994 +pin_code_reply_46510 pin_code_reply 4 46510 NULL
118995 +mthca_alloc_cq_buf_46512 mthca_alloc_cq_buf 3 46512 NULL
118996 +nouveau_drm_ioctl_46514 nouveau_drm_ioctl 2 46514 NULL nohasharray
118997 +kmsg_read_46514 kmsg_read 3 46514 &nouveau_drm_ioctl_46514
118998 +nl80211_send_rx_assoc_46538 nl80211_send_rx_assoc 4 46538 NULL
118999 +dn_current_mss_46574 dn_current_mss 0 46574 NULL
119000 +serverworks_create_gatt_pages_46582 serverworks_create_gatt_pages 1 46582 NULL
119001 +snd_compr_write_data_46592 snd_compr_write_data 3 46592 NULL
119002 +il3945_stats_flag_46606 il3945_stats_flag 0-3 46606 NULL
119003 +vscnprintf_46617 vscnprintf 0-2 46617 NULL
119004 +__kfifo_out_r_46623 __kfifo_out_r 0-3 46623 NULL
119005 +request_key_async_with_auxdata_46624 request_key_async_with_auxdata 4 46624 NULL
119006 +pci_enable_device_46642 pci_enable_device 0 46642 NULL
119007 +vfs_getxattr_alloc_46649 vfs_getxattr_alloc 0 46649 NULL
119008 +e1000_tx_map_46672 e1000_tx_map 4 46672 NULL
119009 +l2cap_create_le_flowctl_pdu_46682 l2cap_create_le_flowctl_pdu 3 46682 NULL
119010 +alloc_data_packet_46698 alloc_data_packet 1 46698 NULL
119011 +__ilog2_u32_46706 __ilog2_u32 0 46706 NULL
119012 +erst_dbg_write_46715 erst_dbg_write 3 46715 NULL
119013 +wl1271_rx_filter_alloc_field_46721 wl1271_rx_filter_alloc_field 5 46721 NULL
119014 +irq_domain_add_simple_46734 irq_domain_add_simple 2 46734 NULL
119015 +read_file_tx99_46741 read_file_tx99 3 46741 NULL
119016 +hest_ghes_dev_register_46766 hest_ghes_dev_register 1 46766 NULL
119017 +int_hw_irq_en_46776 int_hw_irq_en 3 46776 NULL
119018 +_xfs_buf_get_pages_46811 _xfs_buf_get_pages 2 46811 NULL
119019 +xfs_iroot_realloc_46826 xfs_iroot_realloc 2 46826 NULL
119020 +shmem_pwrite_fast_46842 shmem_pwrite_fast 3 46842 NULL
119021 +spi_async_46857 spi_async 0 46857 NULL
119022 +vsnprintf_46863 vsnprintf 0 46863 NULL
119023 +nvme_alloc_queue_46865 nvme_alloc_queue 3 46865 NULL
119024 +qp_memcpy_from_queue_iov_46874 qp_memcpy_from_queue_iov 5-4 46874 NULL
119025 +lov_iocontrol_46876 lov_iocontrol 3 46876 NULL
119026 +ixgbe_dbg_reg_ops_write_46895 ixgbe_dbg_reg_ops_write 3 46895 NULL
119027 +sk_mem_pages_46896 sk_mem_pages 0-1 46896 NULL
119028 +ieee80211_if_fmt_power_mode_46906 ieee80211_if_fmt_power_mode 3 46906 NULL
119029 +wlcore_alloc_hw_46917 wlcore_alloc_hw 3-1 46917 NULL
119030 +fb_write_46924 fb_write 3 46924 NULL
119031 +__sctp_setsockopt_connectx_46949 __sctp_setsockopt_connectx 3 46949 NULL
119032 +qla4xxx_post_aen_work_46953 qla4xxx_post_aen_work 3 46953 NULL
119033 +SYSC_poll_46965 SYSC_poll 2 46965 NULL
119034 +crypto_tfm_alg_alignmask_46971 crypto_tfm_alg_alignmask 0 46971 NULL
119035 +mgmt_pending_add_46976 mgmt_pending_add 5 46976 NULL
119036 +strlcat_46985 strlcat 3 46985 NULL
119037 +bitmap_file_clear_bit_46990 bitmap_file_clear_bit 2 46990 NULL
119038 +sel_write_bool_46996 sel_write_bool 3 46996 NULL
119039 +blk_rq_map_kern_47004 blk_rq_map_kern 4 47004 NULL
119040 +cx231xx_init_bulk_47024 cx231xx_init_bulk 3-2-4 47024 NULL
119041 +fs_path_len_47060 fs_path_len 0 47060 NULL
119042 +event_trigger_regex_write_47067 event_trigger_regex_write 3 47067 NULL
119043 +ext4_xattr_list_entries_47070 ext4_xattr_list_entries 0 47070 NULL
119044 +pipeline_dec_packet_in_read_47076 pipeline_dec_packet_in_read 3 47076 NULL
119045 +scsi_deactivate_tcq_47086 scsi_deactivate_tcq 2 47086 NULL
119046 +iwl_dump_nic_event_log_47089 iwl_dump_nic_event_log 0 47089 NULL
119047 +ptlrpc_lprocfs_threads_max_seq_write_47104 ptlrpc_lprocfs_threads_max_seq_write 3 47104 NULL
119048 +mousedev_read_47123 mousedev_read 3 47123 NULL
119049 +upcall_msg_size_47141 upcall_msg_size 2 47141 NULL
119050 +acpi_ut_initialize_buffer_47143 acpi_ut_initialize_buffer 2 47143 NULL nohasharray
119051 +ses_recv_diag_47143 ses_recv_diag 4 47143 &acpi_ut_initialize_buffer_47143
119052 +mxms_headerlen_47161 mxms_headerlen 0 47161 NULL
119053 +rs_sta_dbgfs_rate_scale_data_read_47165 rs_sta_dbgfs_rate_scale_data_read 3 47165 NULL
119054 +rts51x_ms_rw_47171 rts51x_ms_rw 3-4 47171 NULL
119055 +options_write_47243 options_write 3 47243 NULL
119056 +portcntrs_1_read_47253 portcntrs_1_read 3 47253 NULL
119057 +ablkcipher_next_slow_47274 ablkcipher_next_slow 4-3 47274 NULL
119058 +gfs2_readpages_47285 gfs2_readpages 4 47285 NULL
119059 +vsnprintf_47291 vsnprintf 0 47291 NULL
119060 +SYSC_semop_47292 SYSC_semop 3 47292 NULL
119061 +tx_internal_desc_overflow_read_47300 tx_internal_desc_overflow_read 3 47300 NULL
119062 +nouveau_fb_create__47316 nouveau_fb_create_ 4 47316 NULL
119063 +ieee80211_if_read_dot11MeshHoldingTimeout_47356 ieee80211_if_read_dot11MeshHoldingTimeout 3 47356 NULL
119064 +avc_get_hash_stats_47359 avc_get_hash_stats 0 47359 NULL
119065 +kvm_arch_create_memslot_47364 kvm_arch_create_memslot 3 47364 NULL nohasharray
119066 +__output_copy_user_47364 __output_copy_user 3 47364 &kvm_arch_create_memslot_47364
119067 +__bio_map_kern_47379 __bio_map_kern 3 47379 NULL
119068 +nv_rd32_47390 nv_rd32 0 47390 NULL nohasharray
119069 +trace_options_core_read_47390 trace_options_core_read 3 47390 &nv_rd32_47390
119070 +nametbl_list_47391 nametbl_list 2 47391 NULL
119071 +dgrp_net_write_47392 dgrp_net_write 3 47392 NULL
119072 +pfkey_sendmsg_47394 pfkey_sendmsg 4 47394 NULL
119073 +lbs_wrmac_write_47400 lbs_wrmac_write 3 47400 NULL
119074 +sta_vht_capa_read_47409 sta_vht_capa_read 3 47409 NULL
119075 +crypto_ablkcipher_alignmask_47410 crypto_ablkcipher_alignmask 0 47410 NULL
119076 +lbs_wrrf_write_47418 lbs_wrrf_write 3 47418 NULL
119077 +C_SYSC_set_mempolicy_47466 C_SYSC_set_mempolicy 3 47466 NULL
119078 +nvme_trans_send_fw_cmd_47479 nvme_trans_send_fw_cmd 4 47479 NULL
119079 +newpart_47485 newpart 6-4 47485 NULL
119080 +mcp23s17_read_regs_47491 mcp23s17_read_regs 4 47491 NULL
119081 +core_sys_select_47494 core_sys_select 1 47494 NULL
119082 +as3722_block_write_47503 as3722_block_write 2-3 47503 NULL
119083 +alloc_arraycache_47505 alloc_arraycache 2 47505 NULL
119084 +unlink_simple_47506 unlink_simple 3 47506 NULL
119085 +pstore_decompress_47510 pstore_decompress 0 47510 NULL
119086 +__proc_lnet_portal_rotor_47529 __proc_lnet_portal_rotor 5 47529 NULL
119087 +snd_pcm_resume_47530 snd_pcm_resume 0 47530 NULL
119088 +process_vm_rw_47533 process_vm_rw 3-5 47533 NULL nohasharray
119089 +vscnprintf_47533 vscnprintf 0-2 47533 &process_vm_rw_47533
119090 +ieee80211_if_fmt_min_discovery_timeout_47539 ieee80211_if_fmt_min_discovery_timeout 3 47539 NULL
119091 +rtw_cfg80211_set_assoc_resp_wpsp2pie_47558 rtw_cfg80211_set_assoc_resp_wpsp2pie 3 47558 NULL
119092 +read_ldt_47570 read_ldt 2 47570 NULL
119093 +isku_sysfs_read_last_set_47572 isku_sysfs_read_last_set 6 47572 NULL
119094 +btrfs_stack_header_bytenr_47589 btrfs_stack_header_bytenr 0 47589 NULL
119095 +ext4_kvzalloc_47605 ext4_kvzalloc 1 47605 NULL
119096 +sctp_ssnmap_new_47608 sctp_ssnmap_new 2-1 47608 NULL
119097 +cache_read_pipefs_47615 cache_read_pipefs 3 47615 NULL
119098 +twl4030_clear_set_47624 twl4030_clear_set 4 47624 NULL
119099 +ccp_sha_setkey_47633 ccp_sha_setkey 3 47633 NULL
119100 +get_size_47644 get_size 1-2 47644 NULL
119101 +snd_pcm_info_47699 snd_pcm_info 0 47699 NULL
119102 +packet_recvmsg_47700 packet_recvmsg 4 47700 NULL nohasharray
119103 +ipath_format_hwmsg_47700 ipath_format_hwmsg 2 47700 &packet_recvmsg_47700
119104 +save_microcode_47717 save_microcode 3 47717 NULL
119105 +bits_to_user_47733 bits_to_user 2-3 47733 NULL
119106 +carl9170_debugfs_read_47738 carl9170_debugfs_read 3 47738 NULL
119107 +ir_prepare_write_buffer_47747 ir_prepare_write_buffer 3 47747 NULL
119108 +mvumi_alloc_mem_resource_47750 mvumi_alloc_mem_resource 3 47750 NULL
119109 +alloc_sched_domains_47756 alloc_sched_domains 1 47756 NULL
119110 +uwb_ie_dump_hex_47774 uwb_ie_dump_hex 4 47774 NULL
119111 +SyS_setgroups16_47780 SyS_setgroups16 1 47780 NULL
119112 +error_error_numll_frame_cts_start_read_47781 error_error_numll_frame_cts_start_read 3 47781 NULL
119113 +posix_acl_fix_xattr_from_user_47793 posix_acl_fix_xattr_from_user 2 47793 NULL
119114 +lov_packmd_47810 lov_packmd 0 47810 NULL
119115 +tree_mod_log_insert_move_47823 tree_mod_log_insert_move 5 47823 NULL
119116 +pinconf_dbg_config_write_47835 pinconf_dbg_config_write 3 47835 NULL
119117 +KEY_SIZE_47855 KEY_SIZE 0 47855 NULL
119118 +vhci_read_47878 vhci_read 3 47878 NULL
119119 +ubi_wl_put_peb_47886 ubi_wl_put_peb 0 47886 NULL
119120 +keyctl_instantiate_key_common_47889 keyctl_instantiate_key_common 4 47889 NULL
119121 +cfs_percpt_alloc_47918 cfs_percpt_alloc 2 47918 NULL
119122 +comedi_write_47926 comedi_write 3 47926 NULL
119123 +nvme_trans_get_blk_desc_len_47946 nvme_trans_get_blk_desc_len 0-2 47946 NULL
119124 +arch_setup_msi_irq_47959 arch_setup_msi_irq 0 47959 NULL
119125 +gether_get_ifname_47972 gether_get_ifname 3 47972 NULL
119126 +mempool_resize_47983 mempool_resize 2 47983 NULL nohasharray
119127 +iwl_dbgfs_ucode_tracing_read_47983 iwl_dbgfs_ucode_tracing_read 3 47983 &mempool_resize_47983
119128 +dbg_port_buf_47990 dbg_port_buf 2 47990 NULL
119129 +ib_umad_write_47993 ib_umad_write 3 47993 NULL
119130 +lustre_cfg_len_48002 lustre_cfg_len 0 48002 NULL
119131 +gdm_tty_recv_complete_48011 gdm_tty_recv_complete 2 48011 NULL
119132 +bio_integrity_set_tag_48035 bio_integrity_set_tag 3 48035 NULL
119133 +pppoe_sendmsg_48039 pppoe_sendmsg 4 48039 NULL
119134 +SYSC_writev_48040 SYSC_writev 3 48040 NULL
119135 +wpan_phy_alloc_48056 wpan_phy_alloc 1 48056 NULL
119136 +posix_acl_alloc_48063 posix_acl_alloc 1 48063 NULL
119137 +palmas_bulk_write_48068 palmas_bulk_write 2-3-5 48068 NULL
119138 +disc_write_48070 disc_write 3 48070 NULL
119139 +mmc_alloc_host_48097 mmc_alloc_host 1 48097 NULL
119140 +skb_copy_datagram_const_iovec_48102 skb_copy_datagram_const_iovec 4-2-5 48102 NULL
119141 +wm_latency_write_48125 wm_latency_write 3 48125 NULL
119142 +vmw_framebuffer_surface_dirty_48132 vmw_framebuffer_surface_dirty 6 48132 NULL
119143 +set_discoverable_48141 set_discoverable 4 48141 NULL
119144 +dn_fib_count_nhs_48145 dn_fib_count_nhs 0 48145 NULL
119145 +SyS_vmsplice_48150 SyS_vmsplice 3 48150 NULL
119146 +_add_to_r4w_48152 _add_to_r4w 4 48152 NULL
119147 +isr_dma1_done_read_48159 isr_dma1_done_read 3 48159 NULL
119148 +c4iw_id_table_alloc_48163 c4iw_id_table_alloc 3 48163 NULL
119149 +rbd_obj_method_sync_48170 rbd_obj_method_sync 8 48170 NULL
119150 +alloc_cc770dev_48186 alloc_cc770dev 1 48186 NULL
119151 +cfg80211_process_deauth_48200 cfg80211_process_deauth 3 48200 NULL
119152 +ext4_index_trans_blocks_48205 ext4_index_trans_blocks 0-2 48205 NULL
119153 +snd_seq_dump_var_event_48209 snd_seq_dump_var_event 0 48209 NULL
119154 +ll_direct_IO_26_48216 ll_direct_IO_26 4 48216 NULL
119155 +uv_blade_nr_possible_cpus_48226 uv_blade_nr_possible_cpus 0 48226 NULL
119156 +nilfs_readpages_48229 nilfs_readpages 4 48229 NULL
119157 +read_file_recv_48232 read_file_recv 3 48232 NULL
119158 +unaccount_shadowed_48233 unaccount_shadowed 2 48233 NULL
119159 +nouveau_i2c_port_create__48240 nouveau_i2c_port_create_ 7 48240 NULL
119160 +nfsctl_transaction_read_48250 nfsctl_transaction_read 3 48250 NULL
119161 +batadv_socket_read_48257 batadv_socket_read 3 48257 NULL
119162 +cache_write_pipefs_48270 cache_write_pipefs 3 48270 NULL
119163 +trace_options_write_48275 trace_options_write 3 48275 NULL
119164 +send_set_info_48288 send_set_info 7 48288 NULL
119165 +lpfc_idiag_extacc_read_48301 lpfc_idiag_extacc_read 3 48301 NULL
119166 +timblogiw_read_48305 timblogiw_read 3 48305 NULL
119167 +hash_setkey_48310 hash_setkey 3 48310 NULL
119168 +skb_add_data_48363 skb_add_data 3 48363 NULL
119169 +tx_frag_init_called_read_48377 tx_frag_init_called_read 3 48377 NULL
119170 +lbs_debugfs_write_48413 lbs_debugfs_write 3 48413 NULL
119171 +uhid_event_from_user_48417 uhid_event_from_user 2 48417 NULL
119172 +div64_u64_rem_48418 div64_u64_rem 0-1-2 48418 NULL
119173 +snd_power_wait_48422 snd_power_wait 0 48422 NULL
119174 +pwr_tx_without_ps_read_48423 pwr_tx_without_ps_read 3 48423 NULL
119175 +print_filtered_48442 print_filtered 2-0 48442 NULL
119176 +tun_recvmsg_48463 tun_recvmsg 4 48463 NULL
119177 +compat_SyS_preadv64_48469 compat_SyS_preadv64 3 48469 NULL
119178 +_iwl_dbgfs_bt_tx_prio_write_48473 _iwl_dbgfs_bt_tx_prio_write 3 48473 NULL
119179 +ipath_format_hwerrors_48487 ipath_format_hwerrors 5 48487 NULL
119180 +r8712_usbctrl_vendorreq_48489 r8712_usbctrl_vendorreq 6 48489 NULL
119181 +send_control_msg_48498 send_control_msg 6 48498 NULL
119182 +count_masked_bytes_48507 count_masked_bytes 0-1 48507 NULL
119183 +diva_os_copy_to_user_48508 diva_os_copy_to_user 4 48508 NULL
119184 +brcmf_sdio_trap_info_48510 brcmf_sdio_trap_info 4 48510 NULL
119185 +phantom_get_free_48514 phantom_get_free 0 48514 NULL
119186 +drbd_bm_capacity_48530 drbd_bm_capacity 0 48530 NULL
119187 +raid10_size_48571 raid10_size 0-2-3 48571 NULL
119188 +llog_data_len_48607 llog_data_len 1 48607 NULL
119189 +do_ip_vs_set_ctl_48641 do_ip_vs_set_ctl 4 48641 NULL
119190 +ll_rw_extents_stats_pp_seq_write_48651 ll_rw_extents_stats_pp_seq_write 3 48651 NULL
119191 +mtd_read_48655 mtd_read 0 48655 NULL
119192 +aes_encrypt_packets_read_48666 aes_encrypt_packets_read 3 48666 NULL
119193 +sm501_create_subdev_48668 sm501_create_subdev 3-4 48668 NULL
119194 +ubi_eba_unmap_leb_48671 ubi_eba_unmap_leb 0 48671 NULL
119195 +security_inode_setattr_48689 security_inode_setattr 0 48689 NULL
119196 +hysdn_log_write_48694 hysdn_log_write 3 48694 NULL
119197 +altera_drscan_48698 altera_drscan 2 48698 NULL
119198 +kvm_set_irq_routing_48704 kvm_set_irq_routing 3 48704 NULL
119199 +lpfc_idiag_drbacc_write_48712 lpfc_idiag_drbacc_write 3 48712 NULL
119200 +SyS_lgetxattr_48719 SyS_lgetxattr 4 48719 NULL
119201 +ath6kl_usb_bmi_read_48745 ath6kl_usb_bmi_read 3 48745 NULL
119202 +ath6kl_regwrite_read_48747 ath6kl_regwrite_read 3 48747 NULL
119203 +l2cap_segment_sdu_48772 l2cap_segment_sdu 4 48772 NULL
119204 +gfs2_direct_IO_48774 gfs2_direct_IO 4 48774 NULL
119205 +il3945_sta_dbgfs_stats_table_read_48802 il3945_sta_dbgfs_stats_table_read 3 48802 NULL
119206 +twa_change_queue_depth_48808 twa_change_queue_depth 2 48808 NULL
119207 +atomic_counters_read_48827 atomic_counters_read 3 48827 NULL
119208 +azx_get_position_48841 azx_get_position 0 48841 NULL
119209 +vc_do_resize_48842 vc_do_resize 3-4 48842 NULL
119210 +comedi_buf_write_alloc_48846 comedi_buf_write_alloc 0-2 48846 NULL
119211 +suspend_dtim_interval_write_48854 suspend_dtim_interval_write 3 48854 NULL
119212 +C_SYSC_pwritev64_48864 C_SYSC_pwritev64 3 48864 NULL nohasharray
119213 +viafb_dvp1_proc_write_48864 viafb_dvp1_proc_write 3 48864 &C_SYSC_pwritev64_48864
119214 +__ffs_ep0_read_events_48868 __ffs_ep0_read_events 3 48868 NULL
119215 +crypto_cipher_ctxsize_48890 crypto_cipher_ctxsize 0 48890 NULL
119216 +joydev_handle_JSIOCSAXMAP_48898 joydev_handle_JSIOCSAXMAP 3 48898 NULL
119217 +xdi_copy_to_user_48900 xdi_copy_to_user 4 48900 NULL
119218 +msg_hdr_sz_48908 msg_hdr_sz 0 48908 NULL
119219 +snd_pcm_update_hw_ptr_48925 snd_pcm_update_hw_ptr 0 48925 NULL
119220 +sep_crypto_dma_48937 sep_crypto_dma 0 48937 NULL
119221 +si5351_write_parameters_48940 si5351_write_parameters 2 48940 NULL
119222 +event_heart_beat_read_48961 event_heart_beat_read 3 48961 NULL
119223 +nand_ecc_test_run_48966 nand_ecc_test_run 1 48966 NULL
119224 +vmci_handle_arr_create_48971 vmci_handle_arr_create 1 48971 NULL
119225 +rds_rm_size_48996 rds_rm_size 0-2 48996 NULL
119226 +sel_write_enforce_48998 sel_write_enforce 3 48998 NULL
119227 +null_alloc_rs_49019 null_alloc_rs 2 49019 NULL
119228 +filemap_check_errors_49022 filemap_check_errors 0 49022 NULL
119229 +transient_status_49027 transient_status 4 49027 NULL
119230 +ll_xattr_cache_add_49032 ll_xattr_cache_add 4-0 49032 NULL
119231 +scsi_register_49094 scsi_register 2 49094 NULL
119232 +compat_do_readv_writev_49102 compat_do_readv_writev 4 49102 NULL
119233 +xfrm_replay_state_esn_len_49119 xfrm_replay_state_esn_len 0 49119 NULL
119234 +ll_max_cached_mb_seq_write_49122 ll_max_cached_mb_seq_write 3 49122 NULL
119235 +pt_read_49136 pt_read 3 49136 NULL nohasharray
119236 +netxen_setup_msi_interrupts_49136 netxen_setup_msi_interrupts 2 49136 &pt_read_49136
119237 +ipwireless_tty_received_49154 ipwireless_tty_received 3 49154 NULL
119238 +f2fs_acl_count_49155 f2fs_acl_count 0-1 49155 NULL
119239 +ipw_queue_tx_init_49161 ipw_queue_tx_init 3 49161 NULL
119240 +__jfs_setxattr_49175 __jfs_setxattr 5 49175 NULL
119241 +ath6kl_bgscan_int_write_49178 ath6kl_bgscan_int_write 3 49178 NULL
119242 +dvb_dvr_ioctl_49182 dvb_dvr_ioctl 2 49182 NULL
119243 +print_queue_49191 print_queue 0-4 49191 NULL
119244 +root_nfs_cat_49192 root_nfs_cat 3 49192 NULL
119245 +iwl_dbgfs_ucode_general_stats_read_49199 iwl_dbgfs_ucode_general_stats_read 3 49199 NULL
119246 +il4965_rs_sta_dbgfs_stats_table_read_49206 il4965_rs_sta_dbgfs_stats_table_read 3 49206 NULL
119247 +do_jffs2_getxattr_49210 do_jffs2_getxattr 0 49210 NULL
119248 +nouveau_therm_create__49228 nouveau_therm_create_ 4 49228 NULL
119249 +ieee80211_if_read_rssi_threshold_49260 ieee80211_if_read_rssi_threshold 3 49260 NULL
119250 +isku_sysfs_read_keys_media_49268 isku_sysfs_read_keys_media 6 49268 NULL
119251 +ptlrpc_check_set_49277 ptlrpc_check_set 0 49277 NULL
119252 +rx_filter_beacon_filter_read_49279 rx_filter_beacon_filter_read 3 49279 NULL
119253 +viafb_dfph_proc_write_49288 viafb_dfph_proc_write 3 49288 NULL
119254 +uio_read_49300 uio_read 3 49300 NULL
119255 +isku_sysfs_read_keys_macro_49312 isku_sysfs_read_keys_macro 6 49312 NULL
119256 +SYSC_mincore_49319 SYSC_mincore 2-1 49319 NULL
119257 +fwtty_port_handler_49327 fwtty_port_handler 9 49327 NULL
119258 +srpt_alloc_ioctx_ring_49330 srpt_alloc_ioctx_ring 2-4-3 49330 NULL
119259 +joydev_ioctl_common_49359 joydev_ioctl_common 2 49359 NULL
119260 +iscsi_alloc_session_49390 iscsi_alloc_session 3 49390 NULL
119261 +ext4_ext_index_trans_blocks_49396 ext4_ext_index_trans_blocks 0 49396 NULL
119262 +rx_streaming_always_read_49401 rx_streaming_always_read 3 49401 NULL
119263 +tnode_alloc_49407 tnode_alloc 1 49407 NULL
119264 +samples_to_bytes_49426 samples_to_bytes 0-2 49426 NULL
119265 +compat_do_msg_fill_49440 compat_do_msg_fill 3 49440 NULL
119266 +__hfsplus_getxattr_49460 __hfsplus_getxattr 0 49460 NULL
119267 +agp_3_5_isochronous_node_enable_49465 agp_3_5_isochronous_node_enable 3 49465 NULL
119268 +xfs_iformat_local_49472 xfs_iformat_local 4 49472 NULL
119269 +isr_decrypt_done_read_49490 isr_decrypt_done_read 3 49490 NULL
119270 +iwl_dbgfs_disable_power_off_read_49517 iwl_dbgfs_disable_power_off_read 3 49517 NULL
119271 +SyS_listxattr_49519 SyS_listxattr 3 49519 NULL
119272 +emulator_write_phys_49520 emulator_write_phys 2-4 49520 NULL
119273 +smk_write_access_49561 smk_write_access 3 49561 NULL
119274 +alloc_chunk_49575 alloc_chunk 1 49575 NULL
119275 +sctp_setsockopt_default_send_param_49578 sctp_setsockopt_default_send_param 3 49578 NULL
119276 +evm_inode_setattr_49594 evm_inode_setattr 0 49594 NULL
119277 +tap_write_49595 tap_write 3 49595 NULL
119278 +isr_wakeups_read_49607 isr_wakeups_read 3 49607 NULL
119279 +btrfs_mksubvol_49616 btrfs_mksubvol 3 49616 NULL
119280 +heap_init_49617 heap_init 2 49617 NULL
119281 +smk_write_doi_49621 smk_write_doi 3 49621 NULL
119282 +port_fops_read_49626 port_fops_read 3 49626 NULL
119283 +btrfsic_cmp_log_and_dev_bytenr_49628 btrfsic_cmp_log_and_dev_bytenr 2 49628 NULL
119284 +aa_simple_write_to_buffer_49683 aa_simple_write_to_buffer 3-4 49683 NULL
119285 +SyS_pwritev_49688 SyS_pwritev 3 49688 NULL
119286 +__setup_irq_49696 __setup_irq 0 49696 NULL
119287 +__copy_from_user_nocheck_49699 __copy_from_user_nocheck 0-3 49699 NULL
119288 +cx2341x_ctrl_new_menu_49700 cx2341x_ctrl_new_menu 3 49700 NULL
119289 +write_pool_49718 write_pool 3 49718 NULL
119290 +kvm_mmu_notifier_invalidate_page_49723 kvm_mmu_notifier_invalidate_page 3 49723 NULL
119291 +sep_create_dcb_dmatables_context_kernel_49728 sep_create_dcb_dmatables_context_kernel 6 49728 NULL
119292 +zd_usb_iowrite16v_49744 zd_usb_iowrite16v 3 49744 NULL
119293 +btrfs_chunk_num_stripes_49751 btrfs_chunk_num_stripes 0 49751 NULL
119294 +fuse_wr_pages_49753 fuse_wr_pages 0-2-1 49753 NULL
119295 +key_conf_keylen_read_49758 key_conf_keylen_read 3 49758 NULL
119296 +fuse_conn_waiting_read_49762 fuse_conn_waiting_read 3 49762 NULL
119297 +ceph_osdc_readpages_49789 ceph_osdc_readpages 0 49789 NULL
119298 +nfs4_acl_new_49806 nfs4_acl_new 1 49806 NULL
119299 +__of_parse_phandle_with_args_49807 __of_parse_phandle_with_args 0 49807 NULL
119300 +ntfs_copy_from_user_iovec_49829 ntfs_copy_from_user_iovec 6-3-0 49829 NULL
119301 +add_uuid_49831 add_uuid 4 49831 NULL
119302 +twl4030_write_49846 twl4030_write 2 49846 NULL
119303 +scsi_dispatch_cmd_entry_49848 scsi_dispatch_cmd_entry 3 49848 NULL
119304 +timeradd_entry_49850 timeradd_entry 3 49850 NULL
119305 +fiemap_count_to_size_49869 fiemap_count_to_size 0-1 49869 NULL
119306 +sctp_setsockopt_bindx_49870 sctp_setsockopt_bindx 3 49870 NULL
119307 +osc_brw_49896 osc_brw 4 49896 NULL
119308 +ieee80211_if_fmt_dtim_count_49987 ieee80211_if_fmt_dtim_count 3 49987 NULL
119309 +drm_buffer_copy_from_user_49990 drm_buffer_copy_from_user 3 49990 NULL
119310 +l2cap_chan_send_49995 l2cap_chan_send 3 49995 NULL
119311 +dn_mss_from_pmtu_50011 dn_mss_from_pmtu 0-2 50011 NULL
119312 +security_context_to_sid_50019 security_context_to_sid 2 50019 NULL
119313 +isdn_read_50021 isdn_read 3 50021 NULL
119314 +mdc_rename_pack_50023 mdc_rename_pack 4-6 50023 NULL
119315 +brcmf_debugfs_chipinfo_read_50033 brcmf_debugfs_chipinfo_read 3 50033 NULL
119316 +ioread8_50049 ioread8 0 50049 NULL
119317 +fuse_conn_max_background_write_50061 fuse_conn_max_background_write 3 50061 NULL
119318 +__kfifo_dma_in_prepare_50081 __kfifo_dma_in_prepare 4 50081 NULL
119319 +dev_set_alias_50084 dev_set_alias 3 50084 NULL
119320 +libcfs_ioctl_popdata_50087 libcfs_ioctl_popdata 3 50087 NULL
119321 +sock_setsockopt_50088 sock_setsockopt 5 50088 NULL
119322 +altera_swap_dr_50090 altera_swap_dr 2 50090 NULL
119323 +android_set_cntry_50100 android_set_cntry 0 50100 NULL
119324 +read_file_slot_50111 read_file_slot 3 50111 NULL
119325 +rx_streaming_interval_write_50120 rx_streaming_interval_write 3 50120 NULL
119326 +jfs_direct_IO_50125 jfs_direct_IO 4 50125 NULL
119327 +SYSC_preadv_50134 SYSC_preadv 3 50134 NULL
119328 +tx_frag_need_fragmentation_read_50153 tx_frag_need_fragmentation_read 3 50153 NULL
119329 +kmalloc_node_50163 kmalloc_node 1 50163 NULL
119330 +rx_filter_ibss_filter_read_50167 rx_filter_ibss_filter_read 3 50167 NULL
119331 +ahd_probe_stack_size_50168 ahd_probe_stack_size 0 50168 NULL
119332 +odev_update_50169 odev_update 2 50169 NULL
119333 +ubi_resize_volume_50172 ubi_resize_volume 2 50172 NULL nohasharray
119334 +ieee80211_if_fmt_dot11MeshHWMPRannInterval_50172 ieee80211_if_fmt_dot11MeshHWMPRannInterval 3 50172 &ubi_resize_volume_50172
119335 +cfg80211_roamed_bss_50198 cfg80211_roamed_bss 4-6 50198 NULL
119336 +cyttsp4_probe_50201 cyttsp4_probe 4 50201 NULL
119337 +rx_rx_timeout_wa_read_50204 rx_rx_timeout_wa_read 3 50204 NULL
119338 +l2cap_sock_setsockopt_50207 l2cap_sock_setsockopt 5 50207 NULL
119339 +mon_bin_compat_ioctl_50234 mon_bin_compat_ioctl 3 50234 NULL
119340 +sg_kmalloc_50240 sg_kmalloc 1 50240 NULL
119341 +rxrpc_setsockopt_50286 rxrpc_setsockopt 5 50286 NULL
119342 +soc_codec_reg_show_50302 soc_codec_reg_show 0-3 50302 NULL
119343 +SYSC_flistxattr_50307 SYSC_flistxattr 3 50307 NULL
119344 +SYSC_sched_setaffinity_50310 SYSC_sched_setaffinity 2 50310 NULL
119345 +soc_camera_read_50319 soc_camera_read 3 50319 NULL
119346 +do_launder_page_50329 do_launder_page 0 50329 NULL
119347 +nouveau_engine_create__50331 nouveau_engine_create_ 7 50331 NULL
119348 +lpfc_idiag_pcicfg_read_50334 lpfc_idiag_pcicfg_read 3 50334 NULL
119349 +snd_pcm_lib_writev_50337 snd_pcm_lib_writev 0-3 50337 NULL
119350 +tpm_read_50344 tpm_read 3 50344 NULL
119351 +isdn_ppp_read_50356 isdn_ppp_read 4 50356 NULL
119352 +iwl_dbgfs_echo_test_write_50362 iwl_dbgfs_echo_test_write 3 50362 NULL
119353 +xfrm_send_migrate_50365 xfrm_send_migrate 5 50365 NULL
119354 +roccat_common2_receive_50369 roccat_common2_receive 4 50369 NULL
119355 +sl_alloc_bufs_50380 sl_alloc_bufs 2 50380 NULL
119356 +l2tp_ip_sendmsg_50411 l2tp_ip_sendmsg 4 50411 NULL
119357 +iscsi_create_conn_50425 iscsi_create_conn 2 50425 NULL
119358 +validate_acl_mac_addrs_50429 validate_acl_mac_addrs 0 50429 NULL
119359 +btrfs_error_discard_extent_50444 btrfs_error_discard_extent 2 50444 NULL
119360 +pgctrl_write_50453 pgctrl_write 3 50453 NULL
119361 +device_create_sys_dev_entry_50458 device_create_sys_dev_entry 0 50458 NULL
119362 +cfs_size_round_50472 cfs_size_round 0-1 50472 NULL
119363 +cdrom_read_cdda_50478 cdrom_read_cdda 4 50478 NULL
119364 +mei_io_cb_alloc_req_buf_50493 mei_io_cb_alloc_req_buf 2 50493 NULL
119365 +pwr_rcvd_awake_beacons_read_50505 pwr_rcvd_awake_beacons_read 3 50505 NULL
119366 +ath6kl_set_ap_probe_resp_ies_50539 ath6kl_set_ap_probe_resp_ies 3 50539 NULL
119367 +usbat_flash_write_data_50553 usbat_flash_write_data 4 50553 NULL
119368 +self_check_peb_vid_hdr_50563 self_check_peb_vid_hdr 0 50563 NULL
119369 +fat_readpages_50582 fat_readpages 4 50582 NULL
119370 +iwl_dbgfs_missed_beacon_read_50584 iwl_dbgfs_missed_beacon_read 3 50584 NULL
119371 +xillybus_write_50605 xillybus_write 3 50605 NULL
119372 +rx_rx_checksum_result_read_50617 rx_rx_checksum_result_read 3 50617 NULL
119373 +sparse_early_usemaps_alloc_node_50623 sparse_early_usemaps_alloc_node 4 50623 NULL
119374 +simple_transaction_get_50633 simple_transaction_get 3 50633 NULL
119375 +ath6kl_tm_rx_event_50664 ath6kl_tm_rx_event 3 50664 NULL
119376 +bnad_debugfs_read_50665 bnad_debugfs_read 3 50665 NULL
119377 +prism2_read_fid_reg_50689 prism2_read_fid_reg 0 50689 NULL
119378 +xfs_growfs_get_hdr_buf_50697 xfs_growfs_get_hdr_buf 3 50697 NULL
119379 +dev_mem_read_50706 dev_mem_read 3 50706 NULL
119380 +blk_check_plugged_50736 blk_check_plugged 3 50736 NULL
119381 +__ext3_get_inode_loc_50744 __ext3_get_inode_loc 0 50744 NULL
119382 +ocfs2_xattr_block_get_50773 ocfs2_xattr_block_get 0 50773 NULL
119383 +tm6000_read_write_usb_50774 tm6000_read_write_usb 7 50774 NULL
119384 +bio_alloc_map_data_50782 bio_alloc_map_data 2 50782 NULL
119385 +ixgbe_acquire_msix_vectors_50789 ixgbe_acquire_msix_vectors 2 50789 NULL
119386 +tpm_write_50798 tpm_write 3 50798 NULL
119387 +tun_do_read_50800 tun_do_read 4 50800 NULL
119388 +write_flush_50803 write_flush 3 50803 NULL
119389 +dvb_play_50814 dvb_play 3 50814 NULL
119390 +btrfs_stack_file_extent_disk_num_bytes_50825 btrfs_stack_file_extent_disk_num_bytes 0 50825 NULL
119391 +dpcm_show_state_50827 dpcm_show_state 0 50827 NULL
119392 +SetArea_50835 SetArea 4 50835 NULL
119393 +videobuf_dma_init_user_50839 videobuf_dma_init_user 4-3 50839 NULL
119394 +self_check_write_50856 self_check_write 0 50856 NULL
119395 +carl9170_debugfs_write_50857 carl9170_debugfs_write 3 50857 NULL
119396 +SyS_lgetxattr_50889 SyS_lgetxattr 4 50889 NULL
119397 +netlbl_secattr_catmap_walk_rng_50894 netlbl_secattr_catmap_walk_rng 0-2 50894 NULL
119398 +__bdev_writeseg_50903 __bdev_writeseg 4 50903 NULL
119399 +xfs_iext_remove_50909 xfs_iext_remove 3 50909 NULL
119400 +blk_rq_cur_sectors_50910 blk_rq_cur_sectors 0 50910 NULL
119401 +hash_recvmsg_50924 hash_recvmsg 4 50924 NULL
119402 +chd_dec_fetch_cdata_50926 chd_dec_fetch_cdata 3 50926 NULL
119403 +show_device_status_50947 show_device_status 0 50947 NULL
119404 +irq_timeout_write_50950 irq_timeout_write 3 50950 NULL
119405 +virtio_cread16_50951 virtio_cread16 0 50951 NULL
119406 +sdio_uart_write_50954 sdio_uart_write 3 50954 NULL
119407 +SyS_setxattr_50957 SyS_setxattr 4 50957 NULL
119408 +of_modalias_node_50975 of_modalias_node 3 50975 NULL
119409 +iwl_statistics_flag_50981 iwl_statistics_flag 0-3 50981 NULL
119410 +timeout_write_50991 timeout_write 3 50991 NULL
119411 +proc_write_51003 proc_write 3 51003 NULL
119412 +jbd2_journal_extend_51012 jbd2_journal_extend 2 51012 NULL
119413 +lbs_dev_info_51023 lbs_dev_info 3 51023 NULL
119414 +fuse_conn_congestion_threshold_read_51028 fuse_conn_congestion_threshold_read 3 51028 NULL
119415 +BcmGetSectionValEndOffset_51039 BcmGetSectionValEndOffset 0 51039 NULL
119416 +dump_midi_51040 dump_midi 3 51040 NULL
119417 +usb_get_descriptor_51041 usb_get_descriptor 0 51041 NULL
119418 +srpt_alloc_ioctx_51042 srpt_alloc_ioctx 2-3 51042 NULL
119419 +do_arpt_set_ctl_51053 do_arpt_set_ctl 4 51053 NULL
119420 +wusb_prf_64_51065 wusb_prf_64 7 51065 NULL
119421 +jbd2_journal_init_revoke_51088 jbd2_journal_init_revoke 2 51088 NULL
119422 +__ocfs2_find_path_51096 __ocfs2_find_path 0 51096 NULL
119423 +ti_recv_51110 ti_recv 3 51110 NULL
119424 +alloc_rtllib_51136 alloc_rtllib 1 51136 NULL
119425 +simple_xattr_set_51140 simple_xattr_set 4 51140 NULL
119426 +xfs_trans_get_efd_51148 xfs_trans_get_efd 3 51148 NULL
119427 +snd_pcm_unlink_51210 snd_pcm_unlink 0 51210 NULL
119428 +iwl_dbgfs_bcast_filters_macs_read_51231 iwl_dbgfs_bcast_filters_macs_read 3 51231 NULL
119429 +nf_ct_ext_create_51232 nf_ct_ext_create 3 51232 NULL
119430 +snd_pcm_write_51235 snd_pcm_write 3 51235 NULL
119431 +drm_property_create_51239 drm_property_create 4 51239 NULL
119432 +st_read_51251 st_read 3 51251 NULL
119433 +compat_dccp_setsockopt_51263 compat_dccp_setsockopt 5 51263 NULL
119434 +target_alloc_sgl_51264 target_alloc_sgl 3 51264 NULL
119435 +dvb_audio_write_51275 dvb_audio_write 3 51275 NULL
119436 +ipwireless_network_packet_received_51277 ipwireless_network_packet_received 4 51277 NULL
119437 +pvr2_std_id_to_str_51288 pvr2_std_id_to_str 2 51288 NULL
119438 +bnad_debugfs_read_regrd_51308 bnad_debugfs_read_regrd 3 51308 NULL
119439 +init_map_ipmac_51317 init_map_ipmac 5 51317 NULL
119440 +alloc_hippi_dev_51320 alloc_hippi_dev 1 51320 NULL
119441 +ext2_xattr_get_51327 ext2_xattr_get 0 51327 NULL
119442 +alloc_smp_req_51337 alloc_smp_req 1 51337 NULL
119443 +ipw_get_event_log_len_51341 ipw_get_event_log_len 0 51341 NULL
119444 +ieee80211_if_fmt_estab_plinks_51370 ieee80211_if_fmt_estab_plinks 3 51370 NULL
119445 +radeon_kms_compat_ioctl_51371 radeon_kms_compat_ioctl 2 51371 NULL
119446 +blk_register_region_51424 blk_register_region 1-2 51424 NULL
119447 +mwifiex_rdeeprom_read_51429 mwifiex_rdeeprom_read 3 51429 NULL
119448 +hfsplus_brec_read_51436 hfsplus_brec_read 0 51436 NULL
119449 +ieee80211_if_read_dot11MeshHWMPRootMode_51441 ieee80211_if_read_dot11MeshHWMPRootMode 3 51441 NULL
119450 +print_devstats_dot11ACKFailureCount_51443 print_devstats_dot11ACKFailureCount 3 51443 NULL
119451 +vmxnet3_acquire_msix_vectors_51462 vmxnet3_acquire_msix_vectors 2 51462 NULL
119452 +____alloc_ei_netdev_51475 ____alloc_ei_netdev 1 51475 NULL
119453 +xfs_buf_get_uncached_51477 xfs_buf_get_uncached 2 51477 NULL
119454 +kvm_fetch_guest_virt_51493 kvm_fetch_guest_virt 4-2 51493 NULL
119455 +ieee80211_if_write_uapsd_queues_51526 ieee80211_if_write_uapsd_queues 3 51526 NULL
119456 +__alloc_eip_netdev_51549 __alloc_eip_netdev 1 51549 NULL
119457 +batadv_tt_prepare_tvlv_local_data_51568 batadv_tt_prepare_tvlv_local_data 0 51568 NULL
119458 +ixgb_get_eeprom_len_51586 ixgb_get_eeprom_len 0 51586 NULL
119459 +aac_convert_sgraw2_51598 aac_convert_sgraw2 4 51598 NULL
119460 +table_size_to_number_of_entries_51613 table_size_to_number_of_entries 0-1 51613 NULL
119461 +extent_fiemap_51621 extent_fiemap 3 51621 NULL
119462 +sctp_auth_create_key_51641 sctp_auth_create_key 1 51641 NULL
119463 +iscsi_create_session_51647 iscsi_create_session 3 51647 NULL
119464 +ps_upsd_utilization_read_51669 ps_upsd_utilization_read 3 51669 NULL
119465 +sctp_setsockopt_associnfo_51684 sctp_setsockopt_associnfo 3 51684 NULL
119466 +rtw_os_xmit_resource_alloc23a_51693 rtw_os_xmit_resource_alloc23a 3 51693 NULL
119467 +host_mapping_level_51696 host_mapping_level 0 51696 NULL
119468 +sel_write_access_51704 sel_write_access 3 51704 NULL
119469 +tty_cdev_add_51714 tty_cdev_add 2-4 51714 NULL
119470 +v9fs_alloc_rdir_buf_51716 v9fs_alloc_rdir_buf 2 51716 NULL
119471 +drm_compat_ioctl_51717 drm_compat_ioctl 2 51717 NULL
119472 +sg_read_oxfer_51724 sg_read_oxfer 3 51724 NULL
119473 +cm4040_read_51732 cm4040_read 3 51732 NULL
119474 +get_user_pages_fast_51751 get_user_pages_fast 0 51751 NULL
119475 +ifx_spi_insert_flip_string_51752 ifx_spi_insert_flip_string 3 51752 NULL
119476 +if_write_51756 if_write 3 51756 NULL
119477 +ssd1307fb_alloc_array_51788 ssd1307fb_alloc_array 1 51788 NULL
119478 +qib_alloc_devdata_51819 qib_alloc_devdata 2 51819 NULL
119479 +buffer_from_user_51826 buffer_from_user 3 51826 NULL
119480 +ioread32_51847 ioread32 0 51847 NULL nohasharray
119481 +read_file_tgt_tx_stats_51847 read_file_tgt_tx_stats 3 51847 &ioread32_51847
119482 +do_readv_writev_51849 do_readv_writev 4 51849 NULL
119483 +SYSC_sendto_51852 SYSC_sendto 6 51852 NULL
119484 +bm_page_io_async_51858 bm_page_io_async 2 51858 NULL
119485 +pointer_size_read_51863 pointer_size_read 3 51863 NULL
119486 +get_indirect_ea_51869 get_indirect_ea 4 51869 NULL
119487 +user_read_51881 user_read 3 51881 NULL
119488 +dbAdjCtl_51888 dbAdjCtl 0 51888 NULL
119489 +SyS_mq_timedsend_51896 SyS_mq_timedsend 3 51896 NULL
119490 +wmi_set_ie_51919 wmi_set_ie 3 51919 NULL
119491 +dbg_status_buf_51930 dbg_status_buf 2 51930 NULL
119492 +__tcp_mtu_to_mss_51938 __tcp_mtu_to_mss 0-2 51938 NULL
119493 +xfrm_alg_len_51940 xfrm_alg_len 0 51940 NULL
119494 +scsi_get_vpd_page_51951 scsi_get_vpd_page 4 51951 NULL
119495 +snd_mask_min_51969 snd_mask_min 0 51969 NULL
119496 +__blkdev_get_51972 __blkdev_get 0 51972 NULL
119497 +get_zone_51981 get_zone 0-1 51981 NULL
119498 +ath6kl_sdio_alloc_prep_scat_req_51986 ath6kl_sdio_alloc_prep_scat_req 2 51986 NULL
119499 +dwc3_mode_write_51997 dwc3_mode_write 3 51997 NULL
119500 +scsi_sysfs_add_host_52010 scsi_sysfs_add_host 0 52010 NULL
119501 +skb_copy_datagram_from_iovec_52014 skb_copy_datagram_from_iovec 4-2-5 52014 NULL
119502 +rdmalt_52022 rdmalt 0 52022 NULL
119503 +override_release_52032 override_release 2 52032 NULL
119504 +end_port_52042 end_port 0 52042 NULL
119505 +dma_rx_errors_read_52045 dma_rx_errors_read 3 52045 NULL
119506 +msnd_fifo_write_52052 msnd_fifo_write 0-3 52052 NULL
119507 +dvb_ringbuffer_avail_52057 dvb_ringbuffer_avail 0 52057 NULL
119508 +__fuse_request_alloc_52060 __fuse_request_alloc 1 52060 NULL
119509 +isofs_readpages_52067 isofs_readpages 4 52067 NULL
119510 +mxuport_process_read_urb_data_52072 mxuport_process_read_urb_data 3 52072 NULL
119511 +nsm_get_handle_52089 nsm_get_handle 4 52089 NULL
119512 +ulist_add_merge_52096 ulist_add_merge 0 52096 NULL
119513 +o2net_debug_read_52105 o2net_debug_read 3 52105 NULL
119514 +split_scan_timeout_write_52128 split_scan_timeout_write 3 52128 NULL
119515 +retry_count_read_52129 retry_count_read 3 52129 NULL
119516 +snd_pcm_channel_info_user_52135 snd_pcm_channel_info_user 0 52135 NULL
119517 +gdm_usb_hci_send_52138 gdm_usb_hci_send 3 52138 NULL
119518 +sub_alloc_52140 sub_alloc 0 52140 NULL
119519 +hysdn_conf_write_52145 hysdn_conf_write 3 52145 NULL
119520 +htable_size_52148 htable_size 0-1 52148 NULL
119521 +smk_write_load2_52155 smk_write_load2 3 52155 NULL
119522 +ieee80211_if_read_dot11MeshRetryTimeout_52168 ieee80211_if_read_dot11MeshRetryTimeout 3 52168 NULL
119523 +mga_compat_ioctl_52170 mga_compat_ioctl 2 52170 NULL
119524 +print_prefix_52176 print_prefix 0 52176 NULL
119525 +proc_pid_readlink_52186 proc_pid_readlink 3 52186 NULL
119526 +reiserfs_posix_acl_from_disk_52191 reiserfs_posix_acl_from_disk 2 52191 NULL
119527 +vmci_qp_broker_alloc_52216 vmci_qp_broker_alloc 6-5 52216 NULL
119528 +fuse_request_alloc_52243 fuse_request_alloc 1 52243 NULL
119529 +mdiobus_alloc_size_52259 mdiobus_alloc_size 1 52259 NULL
119530 +shrink_slab_52261 shrink_slab 2 52261 NULL
119531 +sisusbcon_do_font_op_52271 sisusbcon_do_font_op 9 52271 NULL
119532 +handle_supp_msgs_52284 handle_supp_msgs 4 52284 NULL
119533 +kobject_set_name_vargs_52309 kobject_set_name_vargs 0 52309 NULL
119534 +read_file_reset_52310 read_file_reset 3 52310 NULL
119535 +ssd1307fb_write_52315 ssd1307fb_write 3 52315 NULL
119536 +request_asymmetric_key_52317 request_asymmetric_key 2-4 52317 NULL
119537 +hwflags_read_52318 hwflags_read 3 52318 NULL
119538 +snd_pcm_hw_free_52327 snd_pcm_hw_free 0 52327 NULL
119539 +test_unaligned_bulk_52333 test_unaligned_bulk 3 52333 NULL
119540 +hur_len_52339 hur_len 0 52339 NULL
119541 +bytes_to_frames_52362 bytes_to_frames 0-2 52362 NULL nohasharray
119542 +cap_inode_killpriv_52362 cap_inode_killpriv 0 52362 &bytes_to_frames_52362
119543 +copy_entries_to_user_52367 copy_entries_to_user 1 52367 NULL
119544 +iwl_dump_fh_52371 iwl_dump_fh 0 52371 NULL
119545 +hfsplus_find_attr_52374 hfsplus_find_attr 0 52374 NULL
119546 +mq_emit_config_values_52378 mq_emit_config_values 3 52378 NULL
119547 +isdn_writebuf_stub_52383 isdn_writebuf_stub 4 52383 NULL
119548 +jfs_setxattr_52389 jfs_setxattr 4 52389 NULL
119549 +aer_inject_write_52399 aer_inject_write 3 52399 NULL
119550 +line6_midibuf_init_52425 line6_midibuf_init 2 52425 NULL
119551 +hso_serial_common_create_52428 hso_serial_common_create 4 52428 NULL
119552 +delay_status_52431 delay_status 5 52431 NULL
119553 +ath6kl_delete_qos_write_52435 ath6kl_delete_qos_write 3 52435 NULL
119554 +ieee80211_if_fmt_num_sta_ps_52438 ieee80211_if_fmt_num_sta_ps 3 52438 NULL
119555 +alauda_read_data_52452 alauda_read_data 3 52452 NULL
119556 +ieee80211_alloc_txb_52477 ieee80211_alloc_txb 1 52477 NULL
119557 +usb_tranzport_write_52479 usb_tranzport_write 3 52479 NULL
119558 +ocfs2_extend_no_holes_52483 ocfs2_extend_no_holes 3-4 52483 NULL
119559 +fd_do_rw_52495 fd_do_rw 3 52495 NULL
119560 +int_tasklet_entry_52500 int_tasklet_entry 3 52500 NULL
119561 +lmv_get_easize_52504 lmv_get_easize 0 52504 NULL
119562 +pm_qos_power_write_52513 pm_qos_power_write 3 52513 NULL
119563 +bt_sock_stream_recvmsg_52518 bt_sock_stream_recvmsg 4 52518 NULL
119564 +dup_variable_bug_52525 dup_variable_bug 3 52525 NULL
119565 +raw_recvmsg_52529 raw_recvmsg 4 52529 NULL
119566 +SyS_vmsplice_52540 SyS_vmsplice 3 52540 NULL
119567 +dccpprobe_read_52549 dccpprobe_read 3 52549 NULL
119568 +debug_level_proc_write_52572 debug_level_proc_write 3 52572 NULL
119569 +isku_sysfs_read_macro_52587 isku_sysfs_read_macro 6 52587 NULL
119570 +snd_pcm_sw_params_52594 snd_pcm_sw_params 0 52594 NULL
119571 +SyS_setsockopt_52610 SyS_setsockopt 5 52610 NULL
119572 +ll_sa_entry_alloc_52611 ll_sa_entry_alloc 4 52611 NULL
119573 +tps80031_writes_52638 tps80031_writes 3-4 52638 NULL
119574 +brcmf_sdio_assert_info_52653 brcmf_sdio_assert_info 4 52653 NULL
119575 +nvme_queue_extra_52661 nvme_queue_extra 0-1 52661 NULL
119576 +SYSC_gethostname_52677 SYSC_gethostname 2 52677 NULL
119577 +nvd0_disp_pioc_create__52693 nvd0_disp_pioc_create_ 5 52693 NULL
119578 +nouveau_client_create__52715 nouveau_client_create_ 5 52715 NULL
119579 +__dm_stat_bio_52722 __dm_stat_bio 3 52722 NULL
119580 +cx25840_ir_rx_read_52724 cx25840_ir_rx_read 3 52724 NULL
119581 +blkcipher_next_slow_52733 blkcipher_next_slow 3-4 52733 NULL
119582 +relay_alloc_page_array_52735 relay_alloc_page_array 1 52735 NULL
119583 +carl9170_debugfs_vif_dump_read_52755 carl9170_debugfs_vif_dump_read 3 52755 NULL
119584 +ieee80211_if_read_beacon_timeout_52756 ieee80211_if_read_beacon_timeout 3 52756 NULL
119585 +nvme_trans_ext_inq_page_52776 nvme_trans_ext_inq_page 3 52776 NULL
119586 +pwr_rcvd_beacons_read_52836 pwr_rcvd_beacons_read 3 52836 NULL
119587 +lb_alloc_ep_req_52837 lb_alloc_ep_req 2 52837 NULL
119588 +mon_bin_get_event_52863 mon_bin_get_event 4-6 52863 NULL
119589 +twl6030_gpadc_write_52867 twl6030_gpadc_write 1 52867 NULL
119590 +qib_decode_6120_err_52876 qib_decode_6120_err 3 52876 NULL
119591 +twlreg_write_52880 twlreg_write 3 52880 NULL
119592 +pvr2_ctrl_value_to_sym_internal_52881 pvr2_ctrl_value_to_sym_internal 5 52881 NULL
119593 +cache_read_procfs_52882 cache_read_procfs 3 52882 NULL
119594 +kvm_kvzalloc_52894 kvm_kvzalloc 1 52894 NULL
119595 +dio_bio_reap_52913 dio_bio_reap 0 52913 NULL
119596 +__kfifo_out_peek_r_52919 __kfifo_out_peek_r 3 52919 NULL
119597 +iblock_get_bio_52936 iblock_get_bio 3 52936 NULL
119598 +ieee80211_if_fmt_fwded_mcast_52961 ieee80211_if_fmt_fwded_mcast 3 52961 NULL
119599 +tx_tx_exch_read_52986 tx_tx_exch_read 3 52986 NULL
119600 +num_node_state_52989 num_node_state 0 52989 NULL
119601 +efivarfs_file_write_53000 efivarfs_file_write 3 53000 NULL
119602 +btrfs_free_and_pin_reserved_extent_53016 btrfs_free_and_pin_reserved_extent 2 53016 NULL
119603 +tx_tx_exch_pending_read_53018 tx_tx_exch_pending_read 3 53018 NULL
119604 +bio_cur_bytes_53037 bio_cur_bytes 0 53037 NULL
119605 +regcache_lzo_block_count_53056 regcache_lzo_block_count 0 53056 NULL
119606 +cfi_read_query_53066 cfi_read_query 0 53066 NULL
119607 +iwl_dbgfs_interrupt_write_53069 iwl_dbgfs_interrupt_write 3 53069 NULL
119608 +mwifiex_debug_read_53074 mwifiex_debug_read 3 53074 NULL
119609 +vmci_check_host_caps_53087 vmci_check_host_caps 0 53087 NULL
119610 +mic_virtio_copy_from_user_53107 mic_virtio_copy_from_user 3 53107 NULL
119611 +verity_status_53120 verity_status 5 53120 NULL
119612 +brcmf_usb_dl_cmd_53130 brcmf_usb_dl_cmd 4 53130 NULL
119613 +ps_poll_ps_poll_max_ap_turn_read_53140 ps_poll_ps_poll_max_ap_turn_read 3 53140 NULL nohasharray
119614 +inode_newsize_ok_53140 inode_newsize_ok 0 53140 &ps_poll_ps_poll_max_ap_turn_read_53140
119615 +ieee80211_bss_info_update_53170 ieee80211_bss_info_update 4 53170 NULL
119616 +btrfs_io_bio_alloc_53179 btrfs_io_bio_alloc 2 53179 NULL
119617 +clear_capture_buf_53192 clear_capture_buf 2 53192 NULL
119618 +tx_tx_start_data_read_53219 tx_tx_start_data_read 3 53219 NULL
119619 +ptlrpc_lprocfs_req_history_max_seq_write_53243 ptlrpc_lprocfs_req_history_max_seq_write 3 53243 NULL
119620 +xfs_trans_read_buf_map_53258 xfs_trans_read_buf_map 5 53258 NULL
119621 +wil_write_file_ssid_53266 wil_write_file_ssid 3 53266 NULL
119622 +btrfs_file_extent_num_bytes_53269 btrfs_file_extent_num_bytes 0 53269 NULL
119623 +ftrace_profile_write_53327 ftrace_profile_write 3 53327 NULL
119624 +find_nr_power_limit_53330 find_nr_power_limit 0 53330 NULL
119625 +gsm_control_reply_53333 gsm_control_reply 4 53333 NULL
119626 +btree_keys_bytes_53348 btree_keys_bytes 0 53348 NULL
119627 +sock_setbindtodevice_53369 sock_setbindtodevice 3 53369 NULL
119628 +get_random_bytes_arch_53370 get_random_bytes_arch 2 53370 NULL
119629 +isr_cmd_cmplt_read_53439 isr_cmd_cmplt_read 3 53439 NULL
119630 +mwifiex_info_read_53447 mwifiex_info_read 3 53447 NULL
119631 +apei_exec_run_optional_53452 apei_exec_run_optional 0 53452 NULL
119632 +paging64_prefetch_gpte_53468 paging64_prefetch_gpte 4 53468 NULL
119633 +ima_write_template_field_data_53475 ima_write_template_field_data 2 53475 NULL nohasharray
119634 +create_trace_kprobe_53475 create_trace_kprobe 1 53475 &ima_write_template_field_data_53475
119635 +iowarrior_read_53483 iowarrior_read 3 53483 NULL
119636 +osd_req_write_kern_53486 osd_req_write_kern 5 53486 NULL
119637 +do_verify_xattr_datum_53499 do_verify_xattr_datum 0 53499 NULL
119638 +snd_pcm_format_physical_width_53505 snd_pcm_format_physical_width 0 53505 NULL
119639 +dbAllocNext_53506 dbAllocNext 0 53506 NULL
119640 +force_sc_support_write_53512 force_sc_support_write 3 53512 NULL nohasharray
119641 +check_acl_53512 check_acl 0 53512 &force_sc_support_write_53512
119642 +nft_data_dump_53549 nft_data_dump 5 53549 NULL
119643 +SYSC_bind_53582 SYSC_bind 3 53582 NULL
119644 +cifs_utf16_bytes_53593 cifs_utf16_bytes 0 53593 NULL
119645 +proc_uid_map_write_53596 proc_uid_map_write 3 53596 NULL
119646 +pfkey_recvmsg_53604 pfkey_recvmsg 4 53604 NULL
119647 +___alloc_bootmem_nopanic_53626 ___alloc_bootmem_nopanic 1 53626 NULL
119648 +xd_write_multiple_pages_53633 xd_write_multiple_pages 6-5 53633 NULL
119649 +ccid_getsockopt_builtin_ccids_53634 ccid_getsockopt_builtin_ccids 2 53634 NULL
119650 +nr_sendmsg_53656 nr_sendmsg 4 53656 NULL
119651 +fuse_fill_write_pages_53682 fuse_fill_write_pages 4-0 53682 NULL
119652 +v4l2_event_subscribe_53687 v4l2_event_subscribe 3 53687 NULL
119653 +bdev_logical_block_size_53690 bdev_logical_block_size 0 53690 NULL nohasharray
119654 +igb_alloc_q_vector_53690 igb_alloc_q_vector 4-6 53690 &bdev_logical_block_size_53690
119655 +find_overflow_devnum_53711 find_overflow_devnum 0 53711 NULL
119656 +__proc_debug_mb_53732 __proc_debug_mb 5 53732 NULL
119657 +wdm_write_53735 wdm_write 3 53735 NULL
119658 +lpfc_idiag_queacc_read_qe_53755 lpfc_idiag_queacc_read_qe 0-2 53755 NULL nohasharray
119659 +amdtp_out_stream_get_max_payload_53755 amdtp_out_stream_get_max_payload 0 53755 &lpfc_idiag_queacc_read_qe_53755
119660 +wa_populate_buf_in_urb_53758 wa_populate_buf_in_urb 3-4 53758 NULL
119661 +ext2_acl_count_53773 ext2_acl_count 0-1 53773 NULL
119662 +__kfifo_dma_in_prepare_r_53792 __kfifo_dma_in_prepare_r 4-5 53792 NULL
119663 +qp_alloc_host_work_53798 qp_alloc_host_work 5-3 53798 NULL
119664 +regmap_raw_write_53803 regmap_raw_write 2-4 53803 NULL
119665 +lpfc_idiag_ctlacc_read_reg_53809 lpfc_idiag_ctlacc_read_reg 0-3 53809 NULL
119666 +nls_nullsize_53815 nls_nullsize 0 53815 NULL
119667 +setup_data_read_53822 setup_data_read 3 53822 NULL
119668 +pms_read_53873 pms_read 3 53873 NULL
119669 +ieee80211_if_fmt_dropped_frames_congestion_53883 ieee80211_if_fmt_dropped_frames_congestion 3 53883 NULL
119670 +SyS_setgroups_53900 SyS_setgroups 1 53900 NULL
119671 +batadv_tt_tvlv_ogm_handler_v1_53909 batadv_tt_tvlv_ogm_handler_v1 5 53909 NULL
119672 +azx_via_get_position_53916 azx_via_get_position 0 53916 NULL
119673 +usb_serial_generic_write_53927 usb_serial_generic_write 4 53927 NULL
119674 +idetape_chrdev_write_53976 idetape_chrdev_write 3 53976 NULL
119675 +__ocfs2_xattr_set_value_outside_53981 __ocfs2_xattr_set_value_outside 5 53981 NULL
119676 +ieee80211_if_fmt_dot11MeshHWMPperrMinInterval_53998 ieee80211_if_fmt_dot11MeshHWMPperrMinInterval 3 53998 NULL
119677 +hfsplus_attr_build_key_54013 hfsplus_attr_build_key 0 54013 NULL
119678 +snd_pcm_lib_write_transfer_54018 snd_pcm_lib_write_transfer 5-2-4 54018 NULL
119679 +mdc_kuc_write_54019 mdc_kuc_write 3 54019 NULL
119680 +ipxrtr_route_packet_54036 ipxrtr_route_packet 4 54036 NULL
119681 +batadv_tt_update_orig_54049 batadv_tt_update_orig 6-4 54049 NULL
119682 +pipeline_dec_packet_out_read_54052 pipeline_dec_packet_out_read 3 54052 NULL
119683 +nl80211_send_disconnected_54056 nl80211_send_disconnected 5 54056 NULL
119684 +rproc_state_read_54057 rproc_state_read 3 54057 NULL
119685 +_malloc_54077 _malloc 1 54077 NULL
119686 +lustre_posix_acl_xattr_filter_54103 lustre_posix_acl_xattr_filter 2 54103 NULL nohasharray
119687 +altera_set_ir_pre_54103 altera_set_ir_pre 2 54103 &lustre_posix_acl_xattr_filter_54103
119688 +__comedi_buf_write_alloc_54112 __comedi_buf_write_alloc 0-2 54112 NULL
119689 +strn_len_54122 strn_len 0 54122 NULL
119690 +isku_receive_54130 isku_receive 4 54130 NULL
119691 +isr_host_acknowledges_read_54136 isr_host_acknowledges_read 3 54136 NULL
119692 +irq_blk_threshold_write_54138 irq_blk_threshold_write 3 54138 NULL
119693 +memcpy_toiovec_54166 memcpy_toiovec 3 54166 NULL
119694 +nouveau_falcon_create__54169 nouveau_falcon_create_ 8 54169 NULL
119695 +p9_client_prepare_req_54175 p9_client_prepare_req 3 54175 NULL
119696 +do_sys_poll_54221 do_sys_poll 2 54221 NULL
119697 +__register_chrdev_54223 __register_chrdev 2-3 54223 NULL
119698 +pi_read_regr_54231 pi_read_regr 0 54231 NULL
119699 +mcp23s08_read_regs_54246 mcp23s08_read_regs 4 54246 NULL
119700 +reada_add_block_54247 reada_add_block 2 54247 NULL
119701 +xfs_dir2_sf_addname_hard_54254 xfs_dir2_sf_addname_hard 3 54254 NULL
119702 +ceph_msgpool_get_54258 ceph_msgpool_get 2 54258 NULL
119703 +audio_write_54261 audio_write 4 54261 NULL nohasharray
119704 +wusb_prf_54261 wusb_prf 7 54261 &audio_write_54261
119705 +mwifiex_getlog_read_54269 mwifiex_getlog_read 3 54269 NULL
119706 +kstrtou16_from_user_54274 kstrtou16_from_user 2 54274 NULL
119707 +altera_set_dr_post_54291 altera_set_dr_post 2 54291 NULL
119708 +dlm_alloc_pagevec_54296 dlm_alloc_pagevec 1 54296 NULL
119709 +reclaim_pages_54301 reclaim_pages 3 54301 NULL
119710 +sprintf_54306 sprintf 0 54306 NULL
119711 +bio_add_pc_page_54319 bio_add_pc_page 4 54319 NULL
119712 +br_fdb_fillbuf_54339 br_fdb_fillbuf 0 54339 NULL
119713 +__alloc_dev_table_54343 __alloc_dev_table 2 54343 NULL
119714 +__get_free_pages_54352 __get_free_pages 0 54352 NULL
119715 +readlink_copy_54366 readlink_copy 2 54366 NULL
119716 +read_file_credit_dist_stats_54367 read_file_credit_dist_stats 3 54367 NULL
119717 +do_dccp_setsockopt_54377 do_dccp_setsockopt 5 54377 NULL nohasharray
119718 +intel_sdvo_write_cmd_54377 intel_sdvo_write_cmd 4 54377 &do_dccp_setsockopt_54377
119719 +ah_alloc_tmp_54378 ah_alloc_tmp 3-2 54378 NULL
119720 +snd_pcm_oss_read2_54387 snd_pcm_oss_read2 0-3 54387 NULL
119721 +iwl_dbgfs_power_save_status_read_54392 iwl_dbgfs_power_save_status_read 3 54392 NULL
119722 +ll_ra_count_get_54410 ll_ra_count_get 3 54410 NULL
119723 +copy_gadget_strings_54417 copy_gadget_strings 2-3 54417 NULL
119724 +sparse_early_mem_maps_alloc_node_54485 sparse_early_mem_maps_alloc_node 4 54485 NULL
119725 +simple_strtoull_54493 simple_strtoull 0 54493 NULL
119726 +btrfs_ordered_sum_size_54509 btrfs_ordered_sum_size 0-2 54509 NULL
119727 +sst_byt_get_dsp_position_54513 sst_byt_get_dsp_position 0-3 54513 NULL
119728 +rfc4106_set_key_54519 rfc4106_set_key 3 54519 NULL
119729 +vmci_transport_dgram_enqueue_54525 vmci_transport_dgram_enqueue 4 54525 NULL
119730 +viacam_read_54526 viacam_read 3 54526 NULL
119731 +unix_dgram_connect_54535 unix_dgram_connect 3 54535 NULL
119732 +setsockopt_54539 setsockopt 5 54539 NULL
119733 +lbs_lowsnr_write_54549 lbs_lowsnr_write 3 54549 NULL
119734 +SYSC_setsockopt_54561 SYSC_setsockopt 5 54561 NULL
119735 +nfsd_vfs_write_54577 nfsd_vfs_write 6 54577 NULL
119736 +fw_iso_buffer_init_54582 fw_iso_buffer_init 3 54582 NULL
119737 +nvme_npages_54601 nvme_npages 0-1 54601 NULL
119738 +irq_pkt_threshold_write_54605 irq_pkt_threshold_write 3 54605 NULL
119739 +port_fops_write_54627 port_fops_write 3 54627 NULL
119740 +tipc_send_stream_54648 tipc_send_stream 4 54648 NULL
119741 +irq_timeout_read_54653 irq_timeout_read 3 54653 NULL
119742 +dns_resolver_read_54658 dns_resolver_read 3 54658 NULL
119743 +twl6030_interrupt_mask_54659 twl6030_interrupt_mask 2 54659 NULL
119744 +tdp_page_fault_54663 tdp_page_fault 2 54663 NULL
119745 +bus_add_device_54665 bus_add_device 0 54665 NULL
119746 +cw1200_queue_stats_init_54670 cw1200_queue_stats_init 2 54670 NULL
119747 +bio_kmalloc_54672 bio_kmalloc 2 54672 NULL
119748 +evm_read_key_54674 evm_read_key 3 54674 NULL
119749 +__btrfs_inc_extent_ref_54706 __btrfs_inc_extent_ref 7 54706 NULL
119750 +rfkill_fop_read_54711 rfkill_fop_read 3 54711 NULL
119751 +ocfs2_control_write_54737 ocfs2_control_write 3 54737 NULL
119752 +kzalloc_54740 kzalloc 1 54740 NULL
119753 +wep_iv_read_54744 wep_iv_read 3 54744 NULL
119754 +lpfc_idiag_pcicfg_write_54749 lpfc_idiag_pcicfg_write 3 54749 NULL
119755 +crystalhd_user_data_54754 crystalhd_user_data 3 54754 NULL
119756 +iio_event_chrdev_read_54757 iio_event_chrdev_read 3 54757 NULL
119757 +adis16480_show_firmware_date_54762 adis16480_show_firmware_date 3 54762 NULL
119758 +ldsem_atomic_update_54774 ldsem_atomic_update 1 54774 NULL
119759 +flexcop_device_kmalloc_54793 flexcop_device_kmalloc 1 54793 NULL
119760 +nfsd_write_54809 nfsd_write 6 54809 NULL
119761 +ar9287_dump_modal_eeprom_54814 ar9287_dump_modal_eeprom 3-2 54814 NULL
119762 +crypto_tfm_ctx_alignment_54815 crypto_tfm_ctx_alignment 0 54815 NULL nohasharray
119763 +kvzalloc_54815 kvzalloc 1 54815 &crypto_tfm_ctx_alignment_54815 nohasharray
119764 +aes_decrypt_fail_read_54815 aes_decrypt_fail_read 3 54815 &kvzalloc_54815
119765 +generic_perform_write_54832 generic_perform_write 3-0 54832 NULL
119766 +write_rio_54837 write_rio 3 54837 NULL
119767 +ext3_acl_from_disk_54839 ext3_acl_from_disk 2 54839 NULL nohasharray
119768 +nouveau_engctx_create__54839 nouveau_engctx_create_ 8 54839 &ext3_acl_from_disk_54839
119769 +ufx_ops_write_54848 ufx_ops_write 3 54848 NULL
119770 +printer_read_54851 printer_read 3 54851 NULL
119771 +assign_irq_vector_54852 assign_irq_vector 0 54852 NULL
119772 +broadsheet_spiflash_rewrite_sector_54864 broadsheet_spiflash_rewrite_sector 2 54864 NULL
119773 +prism_build_supp_rates_54865 prism_build_supp_rates 0 54865 NULL
119774 +iscsi_pool_init_54913 iscsi_pool_init 2-4 54913 NULL nohasharray
119775 +kobject_set_name_vargs_54913 kobject_set_name_vargs 0 54913 &iscsi_pool_init_54913
119776 +btrfs_stack_chunk_num_stripes_54923 btrfs_stack_chunk_num_stripes 0 54923 NULL
119777 +bio_add_page_54933 bio_add_page 0-3 54933 NULL
119778 +mxms_structlen_54939 mxms_structlen 0 54939 NULL
119779 +add_port_54941 add_port 2 54941 NULL
119780 +tipc_send2name_54946 tipc_send2name 5 54946 NULL
119781 +ath9k_dump_btcoex_54949 ath9k_dump_btcoex 0-3 54949 NULL
119782 +alauda_write_data_54967 alauda_write_data 3 54967 NULL
119783 +c4_add_card_54968 c4_add_card 3 54968 NULL
119784 +ext3_xattr_get_54989 ext3_xattr_get 0 54989 NULL
119785 +cx231xx_v4l2_read_55014 cx231xx_v4l2_read 3 55014 NULL
119786 +error_error_null_Frame_tx_start_read_55024 error_error_null_Frame_tx_start_read 3 55024 NULL
119787 +apei_exec_run_55075 apei_exec_run 0 55075 NULL
119788 +bitmap_storage_alloc_55077 bitmap_storage_alloc 2 55077 NULL
119789 +snd_pcm_capture_hw_avail_55086 snd_pcm_capture_hw_avail 0 55086 NULL
119790 +rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read_55106 rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read 3 55106 NULL
119791 +crypto_ahash_setkey_55134 crypto_ahash_setkey 3 55134 NULL
119792 +filldir_55137 filldir 3 55137 NULL
119793 +ocfs2_truncate_file_55148 ocfs2_truncate_file 3 55148 NULL
119794 +npages_to_npools_55149 npages_to_npools 0-1 55149 NULL
119795 +ieee80211_if_read_uapsd_queues_55150 ieee80211_if_read_uapsd_queues 3 55150 NULL
119796 +sel_write_relabel_55195 sel_write_relabel 3 55195 NULL
119797 +compat_SyS_ppoll_55196 compat_SyS_ppoll 2 55196 NULL
119798 +sched_feat_write_55202 sched_feat_write 3 55202 NULL
119799 +ht40allow_map_read_55209 ht40allow_map_read 3 55209 NULL
119800 +__kfifo_dma_out_prepare_r_55211 __kfifo_dma_out_prepare_r 4-5 55211 NULL
119801 +do_raw_setsockopt_55215 do_raw_setsockopt 5 55215 NULL
119802 +qxl_alloc_client_monitors_config_55216 qxl_alloc_client_monitors_config 2 55216 NULL
119803 +nouveau_mc_create__55217 nouveau_mc_create_ 4 55217 NULL
119804 +dbAllocDmap_55227 dbAllocDmap 0 55227 NULL
119805 +memcpy_fromiovec_55247 memcpy_fromiovec 3 55247 NULL
119806 +lbs_failcount_write_55276 lbs_failcount_write 3 55276 NULL
119807 +persistent_ram_new_55286 persistent_ram_new 1-2 55286 NULL
119808 +rx_streaming_interval_read_55291 rx_streaming_interval_read 3 55291 NULL
119809 +lov_get_stripecnt_55297 lov_get_stripecnt 0-3 55297 NULL
119810 +gsm_control_modem_55303 gsm_control_modem 3 55303 NULL
119811 +qp_alloc_guest_work_55305 qp_alloc_guest_work 5-3 55305 NULL nohasharray
119812 +compat_SyS_process_vm_readv_55305 compat_SyS_process_vm_readv 3-5 55305 &qp_alloc_guest_work_55305
119813 +compat_SyS_mbind_55329 compat_SyS_mbind 5 55329 NULL
119814 +vme_user_read_55338 vme_user_read 3 55338 NULL
119815 +__wa_xfer_setup_sizes_55342 __wa_xfer_setup_sizes 0 55342 NULL nohasharray
119816 +sctp_datamsg_from_user_55342 sctp_datamsg_from_user 4 55342 &__wa_xfer_setup_sizes_55342
119817 +cw1200_sdio_align_size_55391 cw1200_sdio_align_size 2 55391 NULL
119818 +iwl_dbgfs_plcp_delta_read_55407 iwl_dbgfs_plcp_delta_read 3 55407 NULL
119819 +nouveau_cli_create_55425 nouveau_cli_create 3 55425 NULL
119820 +si476x_radio_read_rds_blckcnt_blob_55427 si476x_radio_read_rds_blckcnt_blob 3 55427 NULL
119821 +__vxge_hw_channel_allocate_55462 __vxge_hw_channel_allocate 3 55462 NULL
119822 +cx23888_ir_rx_read_55473 cx23888_ir_rx_read 3 55473 NULL
119823 +snd_pcm_lib_write_55483 snd_pcm_lib_write 0-3 55483 NULL
119824 +i2o_pool_alloc_55485 i2o_pool_alloc 4 55485 NULL
119825 +batadv_tt_entries_55487 batadv_tt_entries 0-1 55487 NULL
119826 +ras_stride_increase_window_55501 ras_stride_increase_window 3 55501 NULL
119827 +tx_tx_done_int_template_read_55511 tx_tx_done_int_template_read 3 55511 NULL
119828 +ea_get_55522 ea_get 3-0 55522 NULL
119829 +buffer_size_55534 buffer_size 0 55534 NULL
119830 +set_msr_interception_55538 set_msr_interception 2 55538 NULL
119831 +tty_port_register_device_55543 tty_port_register_device 3 55543 NULL
119832 +hash_ipport6_expire_55549 hash_ipport6_expire 4 55549 NULL
119833 +dm_stats_list_55551 dm_stats_list 4 55551 NULL
119834 +compat_SyS_setsockopt_55581 compat_SyS_setsockopt 5 55581 NULL
119835 +add_partition_55588 add_partition 2 55588 NULL
119836 +kstrtou8_from_user_55599 kstrtou8_from_user 2 55599 NULL
119837 +SyS_keyctl_55602 SyS_keyctl 4 55602 NULL
119838 +macvtap_put_user_55609 macvtap_put_user 4 55609 NULL
119839 +selinux_setprocattr_55611 selinux_setprocattr 4 55611 NULL
119840 +edge_tty_recv_55622 edge_tty_recv 3 55622 NULL
119841 +reiserfs_xattr_get_55628 reiserfs_xattr_get 0 55628 NULL nohasharray
119842 +pktgen_if_write_55628 pktgen_if_write 3 55628 &reiserfs_xattr_get_55628
119843 +osc_obd_max_pages_per_rpc_seq_write_55636 osc_obd_max_pages_per_rpc_seq_write 3 55636 NULL
119844 +xfs_bmbt_maxrecs_55649 xfs_bmbt_maxrecs 0-2 55649 NULL
119845 +lpfc_idiag_queinfo_read_55662 lpfc_idiag_queinfo_read 3 55662 NULL
119846 +il_dbgfs_tx_queue_read_55668 il_dbgfs_tx_queue_read 3 55668 NULL
119847 +get_info_55681 get_info 3 55681 NULL
119848 +iwl_dbgfs_plcp_delta_write_55682 iwl_dbgfs_plcp_delta_write 3 55682 NULL
119849 +genl_allocate_reserve_groups_55705 genl_allocate_reserve_groups 1 55705 NULL
119850 +pm8001_store_update_fw_55716 pm8001_store_update_fw 4 55716 NULL
119851 +tap_pwup_write_55723 tap_pwup_write 3 55723 NULL
119852 +__iio_allocate_kfifo_55738 __iio_allocate_kfifo 2 55738 NULL
119853 +set_local_name_55757 set_local_name 4 55757 NULL
119854 +strlen_55778 strlen 0 55778 NULL nohasharray
119855 +is_idx_node_in_tnc_55778 is_idx_node_in_tnc 0 55778 &strlen_55778
119856 +set_spte_55783 set_spte 5-4 55783 NULL
119857 +req_bio_endio_55786 req_bio_endio 3 55786 NULL nohasharray
119858 +conf_read_55786 conf_read 3 55786 &req_bio_endio_55786
119859 +uwb_rc_neh_grok_event_55799 uwb_rc_neh_grok_event 3 55799 NULL
119860 +sb16_copy_from_user_55836 sb16_copy_from_user 10-6-7 55836 NULL
119861 +ip_hdrlen_55849 ip_hdrlen 0 55849 NULL
119862 +hcd_alloc_coherent_55862 hcd_alloc_coherent 5 55862 NULL
119863 +shmem_setxattr_55867 shmem_setxattr 4 55867 NULL
119864 +hsc_write_55875 hsc_write 3 55875 NULL
119865 +ramdisk_store_55885 ramdisk_store 4 55885 NULL
119866 +pm_qos_power_read_55891 pm_qos_power_read 3 55891 NULL
119867 +hash_ip4_expire_55911 hash_ip4_expire 4 55911 NULL
119868 +snd_pcm_hw_param_value_min_55917 snd_pcm_hw_param_value_min 0 55917 NULL
119869 +ext2_direct_IO_55932 ext2_direct_IO 4 55932 NULL
119870 +kvm_write_guest_virt_system_55944 kvm_write_guest_virt_system 4-2 55944 NULL
119871 +sel_read_policy_55947 sel_read_policy 3 55947 NULL
119872 +ceph_get_direct_page_vector_55956 ceph_get_direct_page_vector 2 55956 NULL
119873 +simple_read_from_buffer_55957 simple_read_from_buffer 2-5 55957 NULL
119874 +tx_tx_imm_resp_read_55964 tx_tx_imm_resp_read 3 55964 NULL
119875 +btrfs_clone_55977 btrfs_clone 5-3 55977 NULL
119876 +wa_xfer_create_subset_sg_55992 wa_xfer_create_subset_sg 3-2 55992 NULL
119877 +nvme_alloc_iod_56027 nvme_alloc_iod 1-2 56027 NULL
119878 +rtl8169_init_ring_56028 rtl8169_init_ring 0 56028 NULL
119879 +usb_ocp_write_56047 usb_ocp_write 4 56047 NULL
119880 +dccp_sendmsg_56058 dccp_sendmsg 4 56058 NULL
119881 +pscsi_get_bio_56103 pscsi_get_bio 1 56103 NULL
119882 +usb_alloc_stream_buffers_56123 usb_alloc_stream_buffers 3 56123 NULL
119883 +sel_read_handle_status_56139 sel_read_handle_status 3 56139 NULL
119884 +write_file_frameerrors_56145 write_file_frameerrors 3 56145 NULL
119885 +rawv6_setsockopt_56165 rawv6_setsockopt 5 56165 NULL
119886 +ath9k_dump_legacy_btcoex_56194 ath9k_dump_legacy_btcoex 3-0 56194 NULL
119887 +vring_add_indirect_56222 vring_add_indirect 4 56222 NULL
119888 +ocfs2_find_xe_in_bucket_56224 ocfs2_find_xe_in_bucket 0 56224 NULL
119889 +do_ipt_set_ctl_56238 do_ipt_set_ctl 4 56238 NULL
119890 +fd_copyin_56247 fd_copyin 3 56247 NULL
119891 +sk_rmem_schedule_56255 sk_rmem_schedule 3 56255 NULL
119892 +acpi_ex_get_serial_access_length_56275 acpi_ex_get_serial_access_length 0-2 56275 NULL
119893 +il4965_ucode_general_stats_read_56277 il4965_ucode_general_stats_read 3 56277 NULL
119894 +ieee80211_if_fmt_user_power_level_56283 ieee80211_if_fmt_user_power_level 3 56283 NULL
119895 +RESIZE_IF_NEEDED_56286 RESIZE_IF_NEEDED 2 56286 NULL
119896 +dvb_aplay_56296 dvb_aplay 3 56296 NULL
119897 +btmrvl_hscfgcmd_read_56303 btmrvl_hscfgcmd_read 3 56303 NULL
119898 +speakup_file_write_56310 speakup_file_write 3 56310 NULL
119899 +pipeline_pre_to_defrag_swi_read_56321 pipeline_pre_to_defrag_swi_read 3 56321 NULL
119900 +journal_init_revoke_table_56331 journal_init_revoke_table 1 56331 NULL
119901 +snd_rawmidi_read_56337 snd_rawmidi_read 3 56337 NULL
119902 +vxge_os_dma_malloc_async_56348 vxge_os_dma_malloc_async 3 56348 NULL
119903 +mite_device_bytes_transferred_56355 mite_device_bytes_transferred 0 56355 NULL
119904 +iov_iter_copy_from_user_atomic_56368 iov_iter_copy_from_user_atomic 4-0 56368 NULL
119905 +dev_read_56369 dev_read 3 56369 NULL
119906 +ath10k_read_simulate_fw_crash_56371 ath10k_read_simulate_fw_crash 3 56371 NULL
119907 +snd_pcm_common_ioctl1_56382 snd_pcm_common_ioctl1 0 56382 NULL
119908 +write_gssp_56404 write_gssp 3 56404 NULL
119909 +ocfs2_control_read_56405 ocfs2_control_read 3 56405 NULL
119910 +store_msg_56417 store_msg 3 56417 NULL
119911 +pppol2tp_sendmsg_56420 pppol2tp_sendmsg 4 56420 NULL
119912 +l2cap_segment_le_sdu_56426 l2cap_segment_le_sdu 4 56426 NULL
119913 +ec_dbgfs_cmd_read_56431 ec_dbgfs_cmd_read 3 56431 NULL
119914 +fl_create_56435 fl_create 5 56435 NULL
119915 +gnttab_map_56439 gnttab_map 2 56439 NULL
119916 +cx231xx_init_isoc_56453 cx231xx_init_isoc 3-2-4 56453 NULL
119917 +set_connectable_56458 set_connectable 4 56458 NULL
119918 +osd_req_list_partition_objects_56464 osd_req_list_partition_objects 5 56464 NULL
119919 +putused_user_56467 putused_user 3 56467 NULL
119920 +ocfs2_zero_extend_range_56468 ocfs2_zero_extend_range 3-2 56468 NULL
119921 +lbs_rdmac_write_56471 lbs_rdmac_write 3 56471 NULL
119922 +crypto_shash_alignmask_56486 crypto_shash_alignmask 0 56486 NULL
119923 +ieee80211_rx_mgmt_probe_beacon_56491 ieee80211_rx_mgmt_probe_beacon 3 56491 NULL
119924 +memblock_virt_alloc_56501 memblock_virt_alloc 1 56501 NULL
119925 +init_map_ip_56508 init_map_ip 5 56508 NULL
119926 +lustre_posix_acl_xattr_reduce_space_56512 lustre_posix_acl_xattr_reduce_space 3 56512 NULL
119927 +cfg80211_connect_result_56515 cfg80211_connect_result 4-6 56515 NULL
119928 +ip_options_get_56538 ip_options_get 4 56538 NULL
119929 +ll_wr_track_id_56544 ll_wr_track_id 2 56544 NULL
119930 +alloc_apertures_56561 alloc_apertures 1 56561 NULL
119931 +rs_sta_dbgfs_stats_table_read_56573 rs_sta_dbgfs_stats_table_read 3 56573 NULL
119932 +portcntrs_2_read_56586 portcntrs_2_read 3 56586 NULL
119933 +gro_pull_from_frag0_56593 gro_pull_from_frag0 2 56593 NULL
119934 +event_filter_write_56609 event_filter_write 3 56609 NULL
119935 +nvme_trans_log_temperature_56613 nvme_trans_log_temperature 3 56613 NULL
119936 +gather_array_56641 gather_array 3 56641 NULL
119937 +lookup_extent_backref_56644 lookup_extent_backref 9 56644 NULL
119938 +uvc_debugfs_stats_read_56651 uvc_debugfs_stats_read 3 56651 NULL
119939 +tg3_nvram_write_block_56666 tg3_nvram_write_block 3 56666 NULL
119940 +snd_gus_dram_read_56686 snd_gus_dram_read 4 56686 NULL
119941 +dvb_ringbuffer_read_user_56702 dvb_ringbuffer_read_user 3-0 56702 NULL
119942 +sta_flags_read_56710 sta_flags_read 3 56710 NULL
119943 +ipv6_getsockopt_sticky_56711 ipv6_getsockopt_sticky 5 56711 NULL
119944 +__wa_xfer_setup_segs_56725 __wa_xfer_setup_segs 2 56725 NULL
119945 +__copy_from_user_ll_56738 __copy_from_user_ll 0-3 56738 NULL
119946 +drm_agp_bind_pages_56748 drm_agp_bind_pages 3 56748 NULL
119947 +btrfsic_map_block_56751 btrfsic_map_block 2 56751 NULL
119948 +ttm_alloc_new_pages_56792 ttm_alloc_new_pages 5 56792 NULL
119949 +ion_ioctl_56806 ion_ioctl 2 56806 NULL
119950 +do_syslog_56807 do_syslog 3 56807 NULL
119951 +mtdchar_write_56831 mtdchar_write 3 56831 NULL
119952 +snd_rawmidi_kernel_write1_56847 snd_rawmidi_kernel_write1 4-0 56847 NULL
119953 +si476x_radio_read_agc_blob_56849 si476x_radio_read_agc_blob 3 56849 NULL
119954 +ext3_xattr_ibody_get_56880 ext3_xattr_ibody_get 0 56880 NULL
119955 +pvr2_debugifc_print_status_56890 pvr2_debugifc_print_status 3 56890 NULL
119956 +debug_debug3_read_56894 debug_debug3_read 3 56894 NULL
119957 +batadv_tt_update_changes_56895 batadv_tt_update_changes 3 56895 NULL nohasharray
119958 +le_auto_conn_write_56895 le_auto_conn_write 3 56895 &batadv_tt_update_changes_56895
119959 +hfsplus_find_cat_56899 hfsplus_find_cat 0 56899 NULL
119960 +strcspn_56913 strcspn 0 56913 NULL
119961 +__kfifo_out_56927 __kfifo_out 0-3 56927 NULL
119962 +journal_init_revoke_56933 journal_init_revoke 2 56933 NULL
119963 +nouveau_xtensa_create__56952 nouveau_xtensa_create_ 8 56952 NULL
119964 +diva_get_driver_info_56967 diva_get_driver_info 0 56967 NULL
119965 +sptlrpc_secflags2str_56995 sptlrpc_secflags2str 3 56995 NULL
119966 +vlsi_alloc_ring_57003 vlsi_alloc_ring 3-4 57003 NULL
119967 +btrfs_super_csum_size_57004 btrfs_super_csum_size 0 57004 NULL
119968 +aircable_process_packet_57027 aircable_process_packet 4 57027 NULL
119969 +ieee80211_if_fmt_state_57043 ieee80211_if_fmt_state 3 57043 NULL nohasharray
119970 +skb_network_offset_57043 skb_network_offset 0 57043 &ieee80211_if_fmt_state_57043
119971 +bytes_to_samples_57049 bytes_to_samples 0-2 57049 NULL
119972 +xfs_buf_read_map_57053 xfs_buf_read_map 3 57053 NULL
119973 +cx2341x_ctrl_new_std_57061 cx2341x_ctrl_new_std 4 57061 NULL
119974 +sca3000_read_data_57064 sca3000_read_data 4 57064 NULL
119975 +pcmcia_replace_cis_57066 pcmcia_replace_cis 3 57066 NULL
119976 +tracing_set_trace_write_57096 tracing_set_trace_write 3 57096 NULL
119977 +altera_get_note_57099 altera_get_note 6 57099 NULL
119978 +hpfs_readpages_57106 hpfs_readpages 4 57106 NULL
119979 +snd_pcm_hw_params_old_user_57108 snd_pcm_hw_params_old_user 0 57108 NULL
119980 +crypto_compress_ctxsize_57109 crypto_compress_ctxsize 0 57109 NULL
119981 +cipso_v4_gentag_loc_57119 cipso_v4_gentag_loc 0 57119 NULL
119982 +ima_show_htable_value_57136 ima_show_htable_value 2 57136 NULL nohasharray
119983 +rds_ib_sub_signaled_57136 rds_ib_sub_signaled 2 57136 &ima_show_htable_value_57136 nohasharray
119984 +nl80211_send_deauth_57136 nl80211_send_deauth 4 57136 &rds_ib_sub_signaled_57136
119985 +snd_sonicvibes_getdmac_57140 snd_sonicvibes_getdmac 0 57140 NULL
119986 +_iwl_dbgfs_bf_params_write_57141 _iwl_dbgfs_bf_params_write 3 57141 NULL
119987 +udl_prime_create_57159 udl_prime_create 2 57159 NULL
119988 +stk_prepare_sio_buffers_57168 stk_prepare_sio_buffers 2 57168 NULL
119989 +rx_hw_stuck_read_57179 rx_hw_stuck_read 3 57179 NULL
119990 +hash_netnet6_expire_57191 hash_netnet6_expire 4 57191 NULL
119991 +tt3650_ci_msg_57219 tt3650_ci_msg 4 57219 NULL
119992 +dma_fifo_alloc_57236 dma_fifo_alloc 2-3-5 57236 NULL
119993 +flush_space_57241 flush_space 0 57241 NULL
119994 +rsxx_cram_write_57244 rsxx_cram_write 3 57244 NULL
119995 +ieee80211_if_fmt_tsf_57249 ieee80211_if_fmt_tsf 3 57249 NULL
119996 +oprofilefs_ulong_from_user_57251 oprofilefs_ulong_from_user 3 57251 NULL
119997 +alloc_flex_gd_57259 alloc_flex_gd 1 57259 NULL
119998 +lbs_sleepparams_write_57283 lbs_sleepparams_write 3 57283 NULL
119999 +pstore_file_read_57288 pstore_file_read 3 57288 NULL
120000 +snd_pcm_read_57289 snd_pcm_read 3 57289 NULL
120001 +ftdi_elan_write_57309 ftdi_elan_write 3 57309 NULL
120002 +write_file_regval_57313 write_file_regval 3 57313 NULL
120003 +__mxt_write_reg_57326 __mxt_write_reg 3 57326 NULL
120004 +usblp_read_57342 usblp_read 3 57342 NULL
120005 +print_devstats_dot11RTSFailureCount_57347 print_devstats_dot11RTSFailureCount 3 57347 NULL
120006 +dio_send_cur_page_57348 dio_send_cur_page 0 57348 NULL
120007 +tipc_bclink_stats_57372 tipc_bclink_stats 2 57372 NULL
120008 +tty_register_device_attr_57381 tty_register_device_attr 2 57381 NULL
120009 +read_file_blob_57406 read_file_blob 3 57406 NULL
120010 +enclosure_register_57412 enclosure_register 3 57412 NULL
120011 +compat_keyctl_instantiate_key_iov_57431 compat_keyctl_instantiate_key_iov 3 57431 NULL
120012 +copy_to_user_fromio_57432 copy_to_user_fromio 3 57432 NULL
120013 +__roundup_pow_of_two_57461 __roundup_pow_of_two 0 57461 NULL
120014 +sisusb_clear_vram_57466 sisusb_clear_vram 2-3 57466 NULL
120015 +ieee80211_if_read_flags_57470 ieee80211_if_read_flags 3 57470 NULL
120016 +bnad_debugfs_write_regwr_57500 bnad_debugfs_write_regwr 3 57500 NULL
120017 +skb_headlen_57501 skb_headlen 0 57501 NULL
120018 +copy_in_user_57502 copy_in_user 3 57502 NULL
120019 +ckhdid_printf_57505 ckhdid_printf 2 57505 NULL
120020 +init_tag_map_57515 init_tag_map 3 57515 NULL
120021 +wil_read_file_ssid_57517 wil_read_file_ssid 3 57517 NULL nohasharray
120022 +il_dbgfs_force_reset_read_57517 il_dbgfs_force_reset_read 3 57517 &wil_read_file_ssid_57517
120023 +cmm_read_57520 cmm_read 3 57520 NULL
120024 +inode_permission_57531 inode_permission 0 57531 NULL
120025 +acpi_dev_get_resources_57534 acpi_dev_get_resources 0 57534 NULL
120026 +ptlrpc_lprocfs_hp_ratio_seq_write_57537 ptlrpc_lprocfs_hp_ratio_seq_write 3 57537 NULL
120027 +compat_SyS_process_vm_writev_57542 compat_SyS_process_vm_writev 3-5 57542 NULL
120028 +obd_unpackmd_57563 obd_unpackmd 0 57563 NULL
120029 +snd_pcm_playback_ioctl1_57569 snd_pcm_playback_ioctl1 0 57569 NULL
120030 +get_bridge_ifindices_57579 get_bridge_ifindices 0 57579 NULL
120031 +ldlm_cli_enqueue_local_57582 ldlm_cli_enqueue_local 11 57582 NULL
120032 +il_dbgfs_interrupt_write_57591 il_dbgfs_interrupt_write 3 57591 NULL
120033 +read_file_spectral_fft_period_57593 read_file_spectral_fft_period 3 57593 NULL
120034 +tx_tx_retry_template_read_57623 tx_tx_retry_template_read 3 57623 NULL
120035 +sisusbcon_putcs_57630 sisusbcon_putcs 3 57630 NULL
120036 +mem_read_57631 mem_read 3 57631 NULL
120037 +pci_enable_msi_block_57632 pci_enable_msi_block 0 57632 NULL
120038 +msi_compose_msg_57637 msi_compose_msg 0 57637 NULL
120039 +r3964_write_57662 r3964_write 4 57662 NULL
120040 +proc_ns_readlink_57664 proc_ns_readlink 3 57664 NULL
120041 +__lgwrite_57669 __lgwrite 4 57669 NULL
120042 +i2400m_rx_stats_read_57706 i2400m_rx_stats_read 3 57706 NULL
120043 +ieee80211_if_read_dot11MeshHWMPconfirmationInterval_57722 ieee80211_if_read_dot11MeshHWMPconfirmationInterval 3 57722 NULL
120044 +vm_find_vqs_57729 vm_find_vqs 0 57729 NULL
120045 +nouveau_gpio_create__57735 nouveau_gpio_create_ 4-5 57735 NULL
120046 +pppol2tp_recvmsg_57742 pppol2tp_recvmsg 4 57742 NULL
120047 +ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval_57762 ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval 3 57762 NULL
120048 +SYSC_process_vm_writev_57776 SYSC_process_vm_writev 3-5 57776 NULL
120049 +security_inode_unlink_57791 security_inode_unlink 0 57791 NULL
120050 +ld2_57794 ld2 0 57794 NULL
120051 +ivtv_read_57796 ivtv_read 3 57796 NULL
120052 +ion_test_ioctl_57799 ion_test_ioctl 2 57799 NULL
120053 +bfad_debugfs_read_regrd_57830 bfad_debugfs_read_regrd 3 57830 NULL
120054 +copy_to_user_57835 copy_to_user 0-3 57835 NULL
120055 +flash_read_57843 flash_read 3 57843 NULL
120056 +kiblnd_create_tx_pool_57846 kiblnd_create_tx_pool 2 57846 NULL
120057 +radeon_ttm_gtt_read_57879 radeon_ttm_gtt_read 3 57879 NULL
120058 +xt_alloc_table_info_57903 xt_alloc_table_info 1 57903 NULL
120059 +iio_read_first_n_kfifo_57910 iio_read_first_n_kfifo 2 57910 NULL
120060 +ll_xattr_find_get_lock_57912 ll_xattr_find_get_lock 0 57912 NULL
120061 +memcg_caches_array_size_57918 memcg_caches_array_size 0-1 57918 NULL
120062 +twl_i2c_write_57923 twl_i2c_write 3-4 57923 NULL
120063 +__snd_gf1_look16_57925 __snd_gf1_look16 0 57925 NULL
120064 +sel_read_handle_unknown_57933 sel_read_handle_unknown 3 57933 NULL
120065 +xfs_mru_cache_create_57943 xfs_mru_cache_create 3 57943 NULL
120066 +key_algorithm_read_57946 key_algorithm_read 3 57946 NULL
120067 +ip_set_alloc_57953 ip_set_alloc 1 57953 NULL nohasharray
120068 +ioat3_dca_count_dca_slots_57953 ioat3_dca_count_dca_slots 0 57953 &ip_set_alloc_57953
120069 +rx_reset_counter_read_58001 rx_reset_counter_read 3 58001 NULL
120070 +iwl_dbgfs_ucode_rx_stats_read_58023 iwl_dbgfs_ucode_rx_stats_read 3 58023 NULL
120071 +io_playback_transfer_58030 io_playback_transfer 4 58030 NULL
120072 +mce_async_out_58056 mce_async_out 3 58056 NULL
120073 +ocfs2_find_leaf_58065 ocfs2_find_leaf 0 58065 NULL
120074 +dt3155_alloc_coherent_58073 dt3155_alloc_coherent 2 58073 NULL
120075 +cm4040_write_58079 cm4040_write 3 58079 NULL
120076 +ipv6_flowlabel_opt_58135 ipv6_flowlabel_opt 3 58135 NULL nohasharray
120077 +slhc_init_58135 slhc_init 1-2 58135 &ipv6_flowlabel_opt_58135
120078 +garmin_write_bulk_58191 garmin_write_bulk 3 58191 NULL
120079 +ieee80211_if_fmt_flags_58205 ieee80211_if_fmt_flags 3 58205 NULL
120080 +i40evf_allocate_virt_mem_d_58210 i40evf_allocate_virt_mem_d 3 58210 NULL
120081 +btrfsic_create_link_to_next_block_58246 btrfsic_create_link_to_next_block 4 58246 NULL
120082 +read_file_debug_58256 read_file_debug 3 58256 NULL
120083 +osc_max_dirty_mb_seq_write_58263 osc_max_dirty_mb_seq_write 3 58263 NULL
120084 +cfg80211_mgmt_tx_status_58266 cfg80211_mgmt_tx_status 4 58266 NULL
120085 +profile_load_58267 profile_load 3 58267 NULL
120086 +kstrtos8_from_user_58268 kstrtos8_from_user 2 58268 NULL
120087 +acpi_ds_build_internal_package_obj_58271 acpi_ds_build_internal_package_obj 3 58271 NULL
120088 +iscsi_decode_text_input_58292 iscsi_decode_text_input 4 58292 NULL
120089 +ieee80211_if_read_dot11MeshTTL_58307 ieee80211_if_read_dot11MeshTTL 3 58307 NULL
120090 +tx_tx_start_int_templates_read_58324 tx_tx_start_int_templates_read 3 58324 NULL
120091 +ext4_ext_truncate_extend_restart_58331 ext4_ext_truncate_extend_restart 3 58331 NULL
120092 +__copy_from_user_swizzled_58337 __copy_from_user_swizzled 2-4 58337 NULL
120093 +brcmf_debugfs_sdio_counter_read_58369 brcmf_debugfs_sdio_counter_read 3 58369 NULL
120094 +il_dbgfs_status_read_58388 il_dbgfs_status_read 3 58388 NULL
120095 +_drbd_md_sync_page_io_58403 _drbd_md_sync_page_io 6 58403 NULL
120096 +idetape_pad_zeros_58406 idetape_pad_zeros 2 58406 NULL
120097 +i2400m_pld_size_58415 i2400m_pld_size 0 58415 NULL
120098 +capabilities_read_58457 capabilities_read 3 58457 NULL
120099 +usnic_vnic_get_resources_58462 usnic_vnic_get_resources 3 58462 NULL
120100 +compat_do_ipt_set_ctl_58466 compat_do_ipt_set_ctl 4 58466 NULL nohasharray
120101 +lpfc_idiag_baracc_read_58466 lpfc_idiag_baracc_read 3 58466 &compat_do_ipt_set_ctl_58466
120102 +nv_rd08_58472 nv_rd08 0 58472 NULL
120103 +acpi_tables_sysfs_init_58477 acpi_tables_sysfs_init 0 58477 NULL
120104 +snd_gf1_read_addr_58483 snd_gf1_read_addr 0 58483 NULL
120105 +snd_rme96_capture_copy_58484 snd_rme96_capture_copy 5 58484 NULL
120106 +btrfs_cont_expand_58498 btrfs_cont_expand 2-3-0 58498 NULL
120107 +tcf_hash_create_58507 tcf_hash_create 4 58507 NULL
120108 +rndis_add_response_58544 rndis_add_response 2 58544 NULL
120109 +wep_decrypt_fail_read_58567 wep_decrypt_fail_read 3 58567 NULL
120110 +scnprint_mac_oui_58578 scnprint_mac_oui 3-0 58578 NULL
120111 +cur_wm_latency_write_58581 cur_wm_latency_write 3 58581 NULL
120112 +get_rhf_errstring_58582 get_rhf_errstring 3 58582 NULL
120113 +ea_read_inline_58589 ea_read_inline 0 58589 NULL
120114 +isku_sysfs_read_keys_thumbster_58590 isku_sysfs_read_keys_thumbster 6 58590 NULL
120115 +xip_file_read_58592 xip_file_read 3 58592 NULL
120116 +ecryptfs_write_end_58594 ecryptfs_write_end 5-3 58594 NULL
120117 +radeon_bo_size_58606 radeon_bo_size 0 58606 NULL
120118 +skb_copy_to_page_nocache_58624 skb_copy_to_page_nocache 6 58624 NULL
120119 +filemap_fdatawrite_range_58630 filemap_fdatawrite_range 0 58630 NULL
120120 +tx_tx_start_fw_gen_read_58648 tx_tx_start_fw_gen_read 3 58648 NULL
120121 +iwl_dbgfs_rx_handlers_write_58655 iwl_dbgfs_rx_handlers_write 3 58655 NULL
120122 +find_zero_58685 find_zero 0-1 58685 NULL
120123 +uwb_bce_print_IEs_58686 uwb_bce_print_IEs 4 58686 NULL
120124 +tps6586x_writes_58689 tps6586x_writes 2-3 58689 NULL
120125 +scsi_setup_command_freelist_58703 scsi_setup_command_freelist 0 58703 NULL
120126 +vx_send_msg_58711 vx_send_msg 0 58711 NULL
120127 +csum_exist_in_range_58730 csum_exist_in_range 2-3 58730 NULL
120128 +frames_to_bytes_58741 frames_to_bytes 0-2 58741 NULL
120129 +ieee80211_if_write_tkip_mic_test_58748 ieee80211_if_write_tkip_mic_test 3 58748 NULL
120130 +agp_allocate_memory_58761 agp_allocate_memory 2 58761 NULL
120131 +regmap_calc_reg_len_58795 regmap_calc_reg_len 0 58795 NULL
120132 +raw_send_hdrinc_58803 raw_send_hdrinc 4 58803 NULL
120133 +isku_sysfs_read_58806 isku_sysfs_read 5 58806 NULL
120134 +ep_read_58813 ep_read 3 58813 NULL
120135 +command_write_58841 command_write 3 58841 NULL
120136 +ath6kl_wmi_send_action_cmd_58860 ath6kl_wmi_send_action_cmd 7 58860 NULL
120137 +gs_alloc_req_58883 gs_alloc_req 2 58883 NULL
120138 +esas2r_change_queue_depth_58886 esas2r_change_queue_depth 2 58886 NULL
120139 +lprocfs_wr_pinger_recov_58914 lprocfs_wr_pinger_recov 3 58914 NULL
120140 +print_devstats_dot11FCSErrorCount_58919 print_devstats_dot11FCSErrorCount 3 58919 NULL
120141 +pipeline_cs_rx_packet_out_read_58926 pipeline_cs_rx_packet_out_read 3 58926 NULL
120142 +wait_table_hash_nr_entries_58962 wait_table_hash_nr_entries 0 58962 NULL
120143 +ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout_58965 ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout 3 58965 NULL
120144 +crypto_aead_ivsize_58970 crypto_aead_ivsize 0 58970 NULL
120145 +init_list_set_59005 init_list_set 3 59005 NULL
120146 +ep_write_59008 ep_write 3 59008 NULL
120147 +lpfc_idiag_baracc_write_59014 lpfc_idiag_baracc_write 3 59014 NULL
120148 +SyS_preadv_59029 SyS_preadv 3 59029 NULL
120149 +init_pci_cap_msi_perm_59033 init_pci_cap_msi_perm 2 59033 NULL
120150 +selinux_transaction_write_59038 selinux_transaction_write 3 59038 NULL
120151 +crypto_aead_reqsize_59039 crypto_aead_reqsize 0 59039 NULL
120152 +regmap_bulk_write_59049 regmap_bulk_write 2-4 59049 NULL nohasharray
120153 +i8042_enable_kbd_port_59049 i8042_enable_kbd_port 0 59049 &regmap_bulk_write_59049
120154 +mmc_sd_num_wr_blocks_59112 mmc_sd_num_wr_blocks 0 59112 NULL
120155 +sta_tx_latency_stat_table_59122 sta_tx_latency_stat_table 0-4-5 59122 NULL nohasharray
120156 +scsi_io_completion_59122 scsi_io_completion 2 59122 &sta_tx_latency_stat_table_59122
120157 +nfc_llcp_send_i_frame_59130 nfc_llcp_send_i_frame 3 59130 NULL
120158 +framebuffer_alloc_59145 framebuffer_alloc 1 59145 NULL nohasharray
120159 +print_devstats_dot11RTSSuccessCount_59145 print_devstats_dot11RTSSuccessCount 3 59145 &framebuffer_alloc_59145
120160 +radeon_compat_ioctl_59150 radeon_compat_ioctl 2 59150 NULL
120161 +pvr2_hdw_report_clients_59152 pvr2_hdw_report_clients 3 59152 NULL
120162 +ksize_59176 ksize 0 59176 NULL
120163 +setup_window_59178 setup_window 4-2-5-7 59178 NULL
120164 +ocfs2_move_extent_59187 ocfs2_move_extent 2-5 59187 NULL
120165 +xfs_iext_realloc_indirect_59211 xfs_iext_realloc_indirect 2 59211 NULL
120166 +check_mapped_selector_name_59216 check_mapped_selector_name 5 59216 NULL
120167 +dt3155_read_59226 dt3155_read 3 59226 NULL
120168 +paging64_gpte_to_gfn_lvl_59229 paging64_gpte_to_gfn_lvl 0-2-1 59229 NULL
120169 +nla_len_59258 nla_len 0 59258 NULL
120170 +drbd_bm_write_page_59290 drbd_bm_write_page 2 59290 NULL
120171 +btrfs_insert_dir_item_59304 btrfs_insert_dir_item 4 59304 NULL
120172 +fd_copyout_59323 fd_copyout 3 59323 NULL
120173 +read_9287_modal_eeprom_59327 read_9287_modal_eeprom 3 59327 NULL
120174 +set_state_private_59336 set_state_private 0 59336 NULL
120175 +rx_defrag_in_process_called_read_59338 rx_defrag_in_process_called_read 3 59338 NULL
120176 +xfs_attrmulti_attr_set_59346 xfs_attrmulti_attr_set 4 59346 NULL
120177 +f2fs_fallocate_59377 f2fs_fallocate 4-3 59377 NULL
120178 +pvr2_debugifc_print_info_59380 pvr2_debugifc_print_info 3 59380 NULL
120179 +journal_init_dev_59384 journal_init_dev 5 59384 NULL
120180 +__net_get_random_once_59389 __net_get_random_once 2 59389 NULL
120181 +isku_sysfs_read_keys_function_59412 isku_sysfs_read_keys_function 6 59412 NULL
120182 +pci_ctrl_read_59424 pci_ctrl_read 0 59424 NULL
120183 +vxge_hw_ring_rxds_per_block_get_59425 vxge_hw_ring_rxds_per_block_get 0 59425 NULL
120184 +snd_pcm_tstamp_59431 snd_pcm_tstamp 0 59431 NULL
120185 +SyS_sched_setaffinity_59442 SyS_sched_setaffinity 2 59442 NULL
120186 +fs_path_ensure_buf_59445 fs_path_ensure_buf 2 59445 NULL
120187 +tipc_recv_stream_59456 tipc_recv_stream 4 59456 NULL
120188 +_iwl_dbgfs_bcast_filters_write_59491 _iwl_dbgfs_bcast_filters_write 3 59491 NULL
120189 +rtw_cfg80211_set_mgnt_wpsp2pie_59497 rtw_cfg80211_set_mgnt_wpsp2pie 3 59497 NULL
120190 +ib_copy_from_udata_59502 ib_copy_from_udata 3 59502 NULL
120191 +C_SYSC_get_mempolicy_59516 C_SYSC_get_mempolicy 3 59516 NULL
120192 +mic_vringh_copy_59523 mic_vringh_copy 4 59523 NULL
120193 +msix_setup_entries_59545 msix_setup_entries 0 59545 NULL nohasharray
120194 +idr_alloc_59545 idr_alloc 0 59545 &msix_setup_entries_59545
120195 +mpi_get_nbits_59551 mpi_get_nbits 0 59551 NULL
120196 +tunables_write_59563 tunables_write 3 59563 NULL
120197 +bio_split_59564 bio_split 2 59564 NULL
120198 +__copy_from_user_ll_nozero_59571 __copy_from_user_ll_nozero 0-3 59571 NULL
120199 +memdup_user_59590 memdup_user 2 59590 NULL
120200 +xrcdn_free_res_59616 xrcdn_free_res 5 59616 NULL nohasharray
120201 +mem_fwlog_free_mem_blks_read_59616 mem_fwlog_free_mem_blks_read 3 59616 &xrcdn_free_res_59616
120202 +ath6kl_endpoint_stats_write_59621 ath6kl_endpoint_stats_write 3 59621 NULL
120203 +mtrr_write_59622 mtrr_write 3 59622 NULL
120204 +find_first_zero_bit_59636 find_first_zero_bit 0 59636 NULL
120205 +SyS_setdomainname_59646 SyS_setdomainname 2 59646 NULL
120206 +file_update_time_59647 file_update_time 0 59647 NULL
120207 +hidraw_read_59650 hidraw_read 3 59650 NULL
120208 +v9fs_xattr_set_acl_59651 v9fs_xattr_set_acl 4 59651 NULL
120209 +__devcgroup_check_permission_59665 __devcgroup_check_permission 0 59665 NULL
120210 +iwl_dbgfs_mac_params_read_59666 iwl_dbgfs_mac_params_read 3 59666 NULL
120211 +alloc_dca_provider_59670 alloc_dca_provider 2 59670 NULL
120212 +mic_calc_failure_read_59700 mic_calc_failure_read 3 59700 NULL
120213 +ioperm_get_59701 ioperm_get 4-3 59701 NULL
120214 +snd_pcm_info_user_59711 snd_pcm_info_user 0 59711 NULL
120215 +prism2_info_scanresults_59729 prism2_info_scanresults 3 59729 NULL
120216 +ieee80211_if_read_fwded_unicast_59740 ieee80211_if_read_fwded_unicast 3 59740 NULL
120217 +fat_direct_IO_59741 fat_direct_IO 4 59741 NULL
120218 +qib_decode_7220_sdma_errs_59745 qib_decode_7220_sdma_errs 4 59745 NULL
120219 +strnlen_59746 strnlen 0 59746 NULL
120220 +ext3_acl_count_59754 ext3_acl_count 0-1 59754 NULL
120221 +long_retry_limit_read_59766 long_retry_limit_read 3 59766 NULL nohasharray
120222 +cap_inode_need_killpriv_59766 cap_inode_need_killpriv 0 59766 &long_retry_limit_read_59766
120223 +venus_remove_59781 venus_remove 4 59781 NULL
120224 +mei_nfc_recv_59784 mei_nfc_recv 3 59784 NULL
120225 +C_SYSC_preadv_59801 C_SYSC_preadv 3 59801 NULL
120226 +ipw_write_59807 ipw_write 3 59807 NULL
120227 +scsi_init_shared_tag_map_59812 scsi_init_shared_tag_map 2 59812 NULL
120228 +ieee80211_if_read_dot11MeshHWMPmaxPREQretries_59829 ieee80211_if_read_dot11MeshHWMPmaxPREQretries 3 59829 NULL
120229 +gspca_dev_probe2_59833 gspca_dev_probe2 4 59833 NULL
120230 +regmap_raw_write_async_59849 regmap_raw_write_async 2-4 59849 NULL
120231 +pvr2_ioread_set_sync_key_59882 pvr2_ioread_set_sync_key 3 59882 NULL
120232 +l2cap_sock_recvmsg_59886 l2cap_sock_recvmsg 4 59886 NULL
120233 +ffs_prepare_buffer_59892 ffs_prepare_buffer 2 59892 NULL
120234 +kvm_mmu_notifier_invalidate_range_start_59944 kvm_mmu_notifier_invalidate_range_start 3-4 59944 NULL
120235 +ath10k_read_dfs_stats_59949 ath10k_read_dfs_stats 3 59949 NULL
120236 +dapm_widget_power_read_file_59950 dapm_widget_power_read_file 3 59950 NULL nohasharray
120237 +il_dbgfs_rxon_flags_read_59950 il_dbgfs_rxon_flags_read 3 59950 &dapm_widget_power_read_file_59950
120238 +il_dbgfs_missed_beacon_read_59956 il_dbgfs_missed_beacon_read 3 59956 NULL
120239 +__arch_hweight16_59975 __arch_hweight16 0 59975 NULL
120240 +osd_req_read_kern_59990 osd_req_read_kern 5 59990 NULL
120241 +ghash_async_setkey_60001 ghash_async_setkey 3 60001 NULL
120242 +ieee80211_if_fmt_dot11MeshAwakeWindowDuration_60006 ieee80211_if_fmt_dot11MeshAwakeWindowDuration 3 60006 NULL
120243 +copy_items_60009 copy_items 7 60009 NULL
120244 +rawsock_sendmsg_60010 rawsock_sendmsg 4 60010 NULL
120245 +mthca_init_cq_60011 mthca_init_cq 2 60011 NULL
120246 +osd_req_list_dev_partitions_60027 osd_req_list_dev_partitions 4 60027 NULL
120247 +xlog_bread_offset_60030 xlog_bread_offset 3 60030 NULL
120248 +bio_integrity_hw_sectors_60039 bio_integrity_hw_sectors 0-2 60039 NULL
120249 +do_ip6t_set_ctl_60040 do_ip6t_set_ctl 4 60040 NULL
120250 +vcs_size_60050 vcs_size 0 60050 NULL
120251 +gru_alloc_gts_60056 gru_alloc_gts 3-2 60056 NULL
120252 +compat_writev_60063 compat_writev 3 60063 NULL
120253 +ath6kl_listen_int_write_60066 ath6kl_listen_int_write 3 60066 NULL
120254 +c4iw_num_stags_60073 c4iw_num_stags 0 60073 NULL
120255 +rxrpc_kernel_send_data_60083 rxrpc_kernel_send_data 3 60083 NULL
120256 +ieee80211_if_fmt_fwded_frames_60103 ieee80211_if_fmt_fwded_frames 3 60103 NULL
120257 +SYSC_msgsnd_60113 SYSC_msgsnd 3 60113 NULL
120258 +nfs_idmap_request_key_60124 nfs_idmap_request_key 2 60124 NULL
120259 +__mutex_lock_common_60134 __mutex_lock_common 0 60134 NULL
120260 +ld_usb_read_60156 ld_usb_read 3 60156 NULL
120261 +jmb38x_ms_count_slots_60164 jmb38x_ms_count_slots 0 60164 NULL
120262 +init_state_60165 init_state 2 60165 NULL
120263 +jffs2_alloc_full_dirent_60179 jffs2_alloc_full_dirent 1 60179 NULL nohasharray
120264 +sg_build_sgat_60179 sg_build_sgat 3 60179 &jffs2_alloc_full_dirent_60179
120265 +fuse_async_req_send_60183 fuse_async_req_send 0-3 60183 NULL
120266 +arch_setup_msi_irqs_60193 arch_setup_msi_irqs 0 60193 NULL nohasharray
120267 +rx_rx_tkip_replays_read_60193 rx_rx_tkip_replays_read 3 60193 &arch_setup_msi_irqs_60193
120268 +qib_reg_phys_mr_60202 qib_reg_phys_mr 3 60202 NULL
120269 +btrfs_get_token_16_60220 btrfs_get_token_16 0 60220 NULL
120270 +irq_alloc_domain_generic_chips_60264 irq_alloc_domain_generic_chips 2-3 60264 NULL
120271 +display_crc_ctl_write_60273 display_crc_ctl_write 3 60273 NULL
120272 +printer_write_60276 printer_write 3 60276 NULL
120273 +do_xip_mapping_read_60297 do_xip_mapping_read 5 60297 NULL
120274 +getDataLength_60301 getDataLength 0 60301 NULL
120275 +bch_subtract_dirty_60306 bch_subtract_dirty 3-4 60306 NULL
120276 +usb_alphatrack_write_60341 usb_alphatrack_write 3 60341 NULL
120277 +__kfifo_from_user_r_60345 __kfifo_from_user_r 5-3 60345 NULL
120278 +dccp_setsockopt_60367 dccp_setsockopt 5 60367 NULL
120279 +ubi_eba_atomic_leb_change_60379 ubi_eba_atomic_leb_change 0 60379 NULL
120280 +mthca_alloc_resize_buf_60394 mthca_alloc_resize_buf 3 60394 NULL
120281 +ocfs2_zero_extend_60396 ocfs2_zero_extend 3 60396 NULL
120282 +driver_names_read_60399 driver_names_read 3 60399 NULL
120283 +simple_alloc_urb_60420 simple_alloc_urb 3 60420 NULL
120284 +excessive_retries_read_60425 excessive_retries_read 3 60425 NULL
120285 +kmalloc_60432 kmalloc 1 60432 NULL nohasharray
120286 +tstats_write_60432 tstats_write 3 60432 &kmalloc_60432
120287 +snd_hda_get_num_raw_conns_60462 snd_hda_get_num_raw_conns 0 60462 NULL
120288 +crypto_shash_setkey_60483 crypto_shash_setkey 3 60483 NULL
120289 +lustre_msg_early_size_60496 lustre_msg_early_size 0 60496 NULL
120290 +compat_SyS_get_mempolicy_60527 compat_SyS_get_mempolicy 3 60527 NULL
120291 +v9fs_fid_readn_60544 v9fs_fid_readn 4 60544 NULL
120292 +nonpaging_map_60551 nonpaging_map 4 60551 NULL
120293 +osc_lockless_truncate_seq_write_60553 osc_lockless_truncate_seq_write 3 60553 NULL
120294 +tracing_entries_write_60563 tracing_entries_write 3 60563 NULL
120295 +memblock_virt_alloc_try_nid_nopanic_60604 memblock_virt_alloc_try_nid_nopanic 1 60604 NULL
120296 +inode_change_ok_60614 inode_change_ok 0 60614 NULL
120297 +skb_transport_offset_60619 skb_transport_offset 0 60619 NULL
120298 +wl1273_fm_fops_write_60621 wl1273_fm_fops_write 3 60621 NULL
120299 +acl_alloc_stack_init_60630 acl_alloc_stack_init 1 60630 NULL
120300 +__proc_lnet_stats_60647 __proc_lnet_stats 5 60647 NULL
120301 +if_sdio_host_to_card_60666 if_sdio_host_to_card 4 60666 NULL
120302 +ieee80211_if_read_dot11MeshConfirmTimeout_60670 ieee80211_if_read_dot11MeshConfirmTimeout 3 60670 NULL
120303 +vga_rcrt_60731 vga_rcrt 0 60731 NULL
120304 +snd_ice1712_ds_read_60754 snd_ice1712_ds_read 0 60754 NULL
120305 +raid_status_60755 raid_status 5 60755 NULL
120306 +sel_write_checkreqprot_60774 sel_write_checkreqprot 3 60774 NULL
120307 +opticon_write_60775 opticon_write 4 60775 NULL
120308 +acl_alloc_num_60778 acl_alloc_num 1-2 60778 NULL
120309 +snd_pcm_oss_readv3_60792 snd_pcm_oss_readv3 3 60792 NULL
120310 +pwr_tx_with_ps_read_60851 pwr_tx_with_ps_read 3 60851 NULL
120311 +__clone_and_map_data_bio_60861 __clone_and_map_data_bio 3-4 60861 NULL
120312 +alloc_buf_60864 alloc_buf 3-2 60864 NULL
120313 +generic_writepages_60871 generic_writepages 0 60871 NULL
120314 +ubifs_read_one_lp_60882 ubifs_read_one_lp 0 60882 NULL
120315 +ext4_update_inline_data_60888 ext4_update_inline_data 3 60888 NULL
120316 +iio_debugfs_read_reg_60908 iio_debugfs_read_reg 3 60908 NULL
120317 +libcfs_sock_ioctl_60915 libcfs_sock_ioctl 0 60915 NULL
120318 +mgt_set_varlen_60916 mgt_set_varlen 4 60916 NULL
120319 +submit_extent_page_60928 submit_extent_page 5 60928 NULL
120320 +pti_char_write_60960 pti_char_write 3 60960 NULL
120321 +mwifiex_alloc_sdio_mpa_buffers_60961 mwifiex_alloc_sdio_mpa_buffers 2-3 60961 NULL
120322 +__a2mp_build_60987 __a2mp_build 3 60987 NULL
120323 +hsc_msg_alloc_60990 hsc_msg_alloc 1 60990 NULL
120324 +ath6kl_lrssi_roam_read_61022 ath6kl_lrssi_roam_read 3 61022 NULL
120325 +graph_depth_write_61024 graph_depth_write 3 61024 NULL
120326 +sdhci_pltfm_register_61031 sdhci_pltfm_register 3 61031 NULL
120327 +lpfc_idiag_queacc_write_61043 lpfc_idiag_queacc_write 3 61043 NULL
120328 +symtab_init_61050 symtab_init 2 61050 NULL
120329 +fuse_send_write_61053 fuse_send_write 0-4 61053 NULL
120330 +snd_pcm_pause_61054 snd_pcm_pause 0 61054 NULL
120331 +bitmap_scnlistprintf_61062 bitmap_scnlistprintf 2-0 61062 NULL
120332 +ahash_align_buffer_size_61070 ahash_align_buffer_size 0-1-2 61070 NULL
120333 +snd_pcm_update_hw_ptr0_61084 snd_pcm_update_hw_ptr0 0 61084 NULL
120334 +get_derived_key_61100 get_derived_key 4 61100 NULL
120335 +i40e_calculate_l2fpm_size_61104 i40e_calculate_l2fpm_size 0-4-3-2-1 61104 NULL
120336 +alloc_chrdev_region_61112 alloc_chrdev_region 0 61112 NULL
120337 +__probe_kernel_read_61119 __probe_kernel_read 3 61119 NULL
120338 +vmemmap_alloc_block_buf_61126 vmemmap_alloc_block_buf 1 61126 NULL
120339 +afs_proc_cells_write_61139 afs_proc_cells_write 3 61139 NULL
120340 +pair_device_61175 pair_device 4 61175 NULL nohasharray
120341 +event_oom_late_read_61175 event_oom_late_read 3 61175 &pair_device_61175
120342 +dio_bio_add_page_61178 dio_bio_add_page 0 61178 NULL
120343 +SyS_prctl_61202 SyS_prctl 4 61202 NULL
120344 +arch_hibernation_header_save_61212 arch_hibernation_header_save 0 61212 NULL
120345 +smk_read_ambient_61220 smk_read_ambient 3 61220 NULL
120346 +v9fs_mmap_file_read_61262 v9fs_mmap_file_read 3 61262 NULL
120347 +btrfs_bio_alloc_61270 btrfs_bio_alloc 3 61270 NULL nohasharray
120348 +find_get_pages_tag_61270 find_get_pages_tag 0 61270 &btrfs_bio_alloc_61270 nohasharray
120349 +ifalias_store_61270 ifalias_store 4 61270 &find_get_pages_tag_61270
120350 +vortex_adbdma_getlinearpos_61283 vortex_adbdma_getlinearpos 0 61283 NULL nohasharray
120351 +hfsplus_getxattr_finder_info_61283 hfsplus_getxattr_finder_info 0 61283 &vortex_adbdma_getlinearpos_61283
120352 +nvme_trans_copy_to_user_61288 nvme_trans_copy_to_user 3 61288 NULL
120353 +xfer_from_user_61307 xfer_from_user 3 61307 NULL
120354 +xfrm_user_sec_ctx_size_61320 xfrm_user_sec_ctx_size 0 61320 NULL
120355 +C_SYSC_msgsnd_61330 C_SYSC_msgsnd 3 61330 NULL
120356 +write_file_spectral_short_repeat_61335 write_file_spectral_short_repeat 3 61335 NULL
120357 +st5481_setup_isocpipes_61340 st5481_setup_isocpipes 6-4 61340 NULL
120358 +rx_rx_wa_ba_not_expected_read_61341 rx_rx_wa_ba_not_expected_read 3 61341 NULL
120359 +__dm_get_reserved_ios_61342 __dm_get_reserved_ios 0-3-2 61342 NULL
120360 +debug_debug4_read_61367 debug_debug4_read 3 61367 NULL
120361 +system_enable_write_61396 system_enable_write 3 61396 NULL
120362 +unix_stream_sendmsg_61455 unix_stream_sendmsg 4 61455 NULL
120363 +snd_pcm_lib_writev_transfer_61483 snd_pcm_lib_writev_transfer 5-4-2 61483 NULL
120364 +btrfs_item_size_61485 btrfs_item_size 0 61485 NULL
120365 +erst_errno_61526 erst_errno 0 61526 NULL
120366 +compat_SyS_select_61542 compat_SyS_select 1 61542 NULL
120367 +trace_options_core_write_61551 trace_options_core_write 3 61551 NULL
120368 +dvb_net_ioctl_61559 dvb_net_ioctl 2 61559 NULL
120369 +fan_proc_write_61569 fan_proc_write 3 61569 NULL
120370 +ieee80211_if_read_rc_rateidx_mask_2ghz_61570 ieee80211_if_read_rc_rateidx_mask_2ghz 3 61570 NULL
120371 +ldlm_pool_rw_atomic_seq_write_61572 ldlm_pool_rw_atomic_seq_write 3 61572 NULL
120372 +seq_open_private_61589 seq_open_private 3 61589 NULL
120373 +ept_gpte_to_gfn_lvl_61591 ept_gpte_to_gfn_lvl 0-2-1 61591 NULL
120374 +netlink_recvmsg_61600 netlink_recvmsg 4 61600 NULL
120375 +nfs4_init_uniform_client_string_61601 nfs4_init_uniform_client_string 3 61601 NULL
120376 +configfs_write_file_61621 configfs_write_file 3 61621 NULL
120377 +ieee80211_if_fmt_hw_queues_61629 ieee80211_if_fmt_hw_queues 3 61629 NULL
120378 +i2o_parm_table_get_61635 i2o_parm_table_get 6 61635 NULL
120379 +snd_pcm_oss_read3_61643 snd_pcm_oss_read3 0-3 61643 NULL nohasharray
120380 +tcf_hashinfo_init_61643 tcf_hashinfo_init 2 61643 &snd_pcm_oss_read3_61643
120381 +resize_stripes_61650 resize_stripes 2 61650 NULL
120382 +ttm_page_pool_free_61661 ttm_page_pool_free 2-0 61661 NULL
120383 +insert_one_name_61668 insert_one_name 7 61668 NULL
120384 +snd_pcm_playback_avail_61671 snd_pcm_playback_avail 0 61671 NULL
120385 +qib_format_hwmsg_61679 qib_format_hwmsg 2 61679 NULL
120386 +lock_loop_61681 lock_loop 1 61681 NULL
120387 +__do_tune_cpucache_61684 __do_tune_cpucache 2 61684 NULL
120388 +filter_read_61692 filter_read 3 61692 NULL
120389 +iov_length_61716 iov_length 0 61716 NULL
120390 +fragmentation_threshold_read_61718 fragmentation_threshold_read 3 61718 NULL
120391 +null_alloc_reqbuf_61719 null_alloc_reqbuf 3 61719 NULL
120392 +read_file_interrupt_61742 read_file_interrupt 3 61742 NULL nohasharray
120393 +read_file_regval_61742 read_file_regval 3 61742 &read_file_interrupt_61742
120394 +SyS_sendto_61763 SyS_sendto 6 61763 NULL
120395 +mls_compute_context_len_61812 mls_compute_context_len 0 61812 NULL
120396 +bfad_debugfs_write_regwr_61841 bfad_debugfs_write_regwr 3 61841 NULL
120397 +regcache_sync_block_61846 regcache_sync_block 5-4 61846 NULL
120398 +ath9k_hw_def_dump_eeprom_61853 ath9k_hw_def_dump_eeprom 5-4 61853 NULL
120399 +evdev_compute_buffer_size_61863 evdev_compute_buffer_size 0 61863 NULL
120400 +SYSC_lsetxattr_61869 SYSC_lsetxattr 4 61869 NULL
120401 +get_fw_name_61874 get_fw_name 3 61874 NULL
120402 +btrfs_ioctl_clone_61886 btrfs_ioctl_clone 3-4-5 61886 NULL
120403 +lprocfs_write_frac_u64_helper_61897 lprocfs_write_frac_u64_helper 2 61897 NULL
120404 +lov_mds_md_stripecnt_61899 lov_mds_md_stripecnt 0-1 61899 NULL
120405 +clear_refs_write_61904 clear_refs_write 3 61904 NULL
120406 +kernfs_name_61910 kernfs_name 3 61910 NULL
120407 +rx_filter_arp_filter_read_61914 rx_filter_arp_filter_read 3 61914 NULL
120408 +au0828_init_isoc_61917 au0828_init_isoc 3-2-4 61917 NULL
120409 +sctp_sendmsg_61919 sctp_sendmsg 4 61919 NULL
120410 +SyS_kexec_load_61946 SyS_kexec_load 2 61946 NULL
120411 +il4965_ucode_rx_stats_read_61948 il4965_ucode_rx_stats_read 3 61948 NULL
120412 +squashfs_read_id_index_table_61961 squashfs_read_id_index_table 4 61961 NULL
120413 +fix_read_error_61965 fix_read_error 4 61965 NULL
120414 +cow_file_range_61979 cow_file_range 3 61979 NULL
120415 +set_extent_delalloc_61982 set_extent_delalloc 0 61982 NULL
120416 +dequeue_event_62000 dequeue_event 3 62000 NULL
120417 +xt_compat_match_offset_62011 xt_compat_match_offset 0 62011 NULL
120418 +SyS_setxattr_62019 SyS_setxattr 4 62019 NULL
120419 +jffs2_do_unlink_62020 jffs2_do_unlink 4 62020 NULL
120420 +SYSC_select_62024 SYSC_select 1 62024 NULL
120421 +pmcraid_build_passthrough_ioadls_62034 pmcraid_build_passthrough_ioadls 2 62034 NULL
120422 +sctp_user_addto_chunk_62047 sctp_user_addto_chunk 2-3 62047 NULL
120423 +do_pselect_62061 do_pselect 1 62061 NULL
120424 +pcpu_alloc_bootmem_62074 pcpu_alloc_bootmem 2 62074 NULL
120425 +fat_setattr_62084 fat_setattr 0 62084 NULL
120426 +jffs2_security_setxattr_62107 jffs2_security_setxattr 4 62107 NULL
120427 +btrfs_direct_IO_62114 btrfs_direct_IO 4 62114 NULL
120428 +ip_recv_error_62117 ip_recv_error 3 62117 NULL
120429 +generic_block_fiemap_62122 generic_block_fiemap 4 62122 NULL
120430 +llc_ui_header_len_62131 llc_ui_header_len 0 62131 NULL
120431 +qib_diag_write_62133 qib_diag_write 3 62133 NULL nohasharray
120432 +kobject_add_varg_62133 kobject_add_varg 0 62133 &qib_diag_write_62133
120433 +ql_status_62135 ql_status 5 62135 NULL nohasharray
120434 +device_add_attrs_62135 device_add_attrs 0 62135 &ql_status_62135
120435 +video_usercopy_62151 video_usercopy 2 62151 NULL
120436 +SyS_getxattr_62166 SyS_getxattr 4 62166 NULL
120437 +prism54_wpa_bss_ie_get_62173 prism54_wpa_bss_ie_get 0 62173 NULL
120438 +write_file_dfs_62180 write_file_dfs 3 62180 NULL
120439 +alloc_upcall_62186 alloc_upcall 2 62186 NULL
120440 +sock_kmalloc_62205 sock_kmalloc 2 62205 NULL
120441 +smk_read_syslog_62227 smk_read_syslog 3 62227 NULL
120442 +SYSC_setgroups16_62232 SYSC_setgroups16 1 62232 NULL
120443 +nfsd_read_file_62241 nfsd_read_file 6 62241 NULL
120444 +ion_handle_test_dma_62262 ion_handle_test_dma 4-5 62262 NULL
120445 +il_dbgfs_sram_read_62296 il_dbgfs_sram_read 3 62296 NULL
120446 +sparse_early_usemaps_alloc_pgdat_section_62304 sparse_early_usemaps_alloc_pgdat_section 2 62304 NULL
120447 +subsystem_filter_read_62310 subsystem_filter_read 3 62310 NULL
120448 +Wb35Reg_BurstWrite_62327 Wb35Reg_BurstWrite 4 62327 NULL
120449 +subseq_list_62332 subseq_list 3-0 62332 NULL
120450 +ll_statahead_max_seq_write_62333 ll_statahead_max_seq_write 3 62333 NULL
120451 +flash_write_62354 flash_write 3 62354 NULL
120452 +xfpregs_set_62363 xfpregs_set 4 62363 NULL
120453 +rx_rx_timeout_read_62389 rx_rx_timeout_read 3 62389 NULL
120454 +altera_irscan_62396 altera_irscan 2 62396 NULL
120455 +set_ssp_62411 set_ssp 4 62411 NULL
120456 +udf_expand_file_adinicb_62470 udf_expand_file_adinicb 0 62470 NULL
120457 +ext_rts51x_sd_execute_read_data_62501 ext_rts51x_sd_execute_read_data 9 62501 NULL
120458 +pep_sendmsg_62524 pep_sendmsg 4 62524 NULL
120459 +test_iso_queue_62534 test_iso_queue 5 62534 NULL
120460 +debugfs_read_62535 debugfs_read 3 62535 NULL
120461 +sco_sock_sendmsg_62542 sco_sock_sendmsg 4 62542 NULL
120462 +qib_refresh_qsfp_cache_62547 qib_refresh_qsfp_cache 0 62547 NULL
120463 +xfrm_user_policy_62573 xfrm_user_policy 4 62573 NULL
120464 +get_subdir_62581 get_subdir 3 62581 NULL
120465 +nfsd_vfs_read_62605 nfsd_vfs_read 6 62605 NULL
120466 +dut_mode_write_62630 dut_mode_write 3 62630 NULL
120467 +vfs_fsync_range_62635 vfs_fsync_range 0 62635 NULL
120468 +lpfc_sli4_queue_alloc_62646 lpfc_sli4_queue_alloc 3 62646 NULL
120469 +printer_req_alloc_62687 printer_req_alloc 2 62687 NULL
120470 +bioset_integrity_create_62708 bioset_integrity_create 2 62708 NULL
120471 +gfs2_log_write_62717 gfs2_log_write 3 62717 NULL
120472 +rdm_62719 rdm 0 62719 NULL
120473 +obd_ioctl_popdata_62741 obd_ioctl_popdata 3 62741 NULL
120474 +key_replays_read_62746 key_replays_read 3 62746 NULL
120475 +lov_verify_lmm_62747 lov_verify_lmm 2 62747 NULL
120476 +mwifiex_rdeeprom_write_62754 mwifiex_rdeeprom_write 3 62754 NULL
120477 +ax25_sendmsg_62770 ax25_sendmsg 4 62770 NULL
120478 +C_SYSC_ipc_62776 C_SYSC_ipc 3 62776 NULL
120479 +SyS_sched_getaffinity_62786 SyS_sched_getaffinity 2 62786 NULL
120480 +dm_stats_account_io_62787 dm_stats_account_io 3 62787 NULL
120481 +tracing_total_entries_read_62817 tracing_total_entries_read 3 62817 NULL
120482 +__rounddown_pow_of_two_62836 __rounddown_pow_of_two 0 62836 NULL
120483 +bio_get_nr_vecs_62838 bio_get_nr_vecs 0 62838 NULL
120484 +xlog_recover_add_to_trans_62839 xlog_recover_add_to_trans 4 62839 NULL
120485 +rx_fcs_err_read_62844 rx_fcs_err_read 3 62844 NULL
120486 +read_nic_io_dword_62859 read_nic_io_dword 0 62859 NULL
120487 +l2tp_ip6_recvmsg_62874 l2tp_ip6_recvmsg 4 62874 NULL
120488 +aoechr_write_62883 aoechr_write 3 62883 NULL
120489 +if_spi_host_to_card_62890 if_spi_host_to_card 4 62890 NULL
120490 +mempool_create_slab_pool_62907 mempool_create_slab_pool 1 62907 NULL
120491 +getdqbuf_62908 getdqbuf 1 62908 NULL
120492 +ll_statahead_agl_seq_write_62928 ll_statahead_agl_seq_write 3 62928 NULL
120493 +agp_create_user_memory_62955 agp_create_user_memory 1 62955 NULL
120494 +kstrtoull_from_user_63026 kstrtoull_from_user 2 63026 NULL
120495 +__vb2_perform_fileio_63033 __vb2_perform_fileio 3 63033 NULL
120496 +pipeline_defrag_to_csum_swi_read_63037 pipeline_defrag_to_csum_swi_read 3 63037 NULL
120497 +scsi_host_alloc_63041 scsi_host_alloc 2 63041 NULL
120498 +unlink1_63059 unlink1 3 63059 NULL
120499 +xen_set_nslabs_63066 xen_set_nslabs 0 63066 NULL
120500 +iwl_dbgfs_fw_rx_stats_read_63070 iwl_dbgfs_fw_rx_stats_read 3 63070 NULL
120501 +sep_prepare_input_output_dma_table_in_dcb_63087 sep_prepare_input_output_dma_table_in_dcb 4-5 63087 NULL
120502 +iwl_dbgfs_sensitivity_read_63116 iwl_dbgfs_sensitivity_read 3 63116 NULL
120503 +ext4_chunk_trans_blocks_63123 ext4_chunk_trans_blocks 0-2 63123 NULL
120504 +snd_pcm_status_user_63140 snd_pcm_status_user 0 63140 NULL
120505 +ubifs_change_one_lp_63157 ubifs_change_one_lp 0 63157 NULL
120506 +smk_write_revoke_subj_63173 smk_write_revoke_subj 3 63173 NULL
120507 +SyS_syslog_63178 SyS_syslog 3 63178 NULL
120508 +vme_master_read_63221 vme_master_read 0 63221 NULL
120509 +SyS_gethostname_63227 SyS_gethostname 2 63227 NULL
120510 +ptp_read_63251 ptp_read 4 63251 NULL
120511 +xfs_dir2_leaf_getdents_63262 xfs_dir2_leaf_getdents 3 63262 NULL
120512 +iwl_dbgfs_fw_error_dump_read_63263 iwl_dbgfs_fw_error_dump_read 3 63263 NULL
120513 +raid5_resize_63306 raid5_resize 2 63306 NULL
120514 +ath10k_read_fw_dbglog_63323 ath10k_read_fw_dbglog 3 63323 NULL
120515 +proc_info_read_63344 proc_info_read 3 63344 NULL
120516 +ps_upsd_max_sptime_read_63362 ps_upsd_max_sptime_read 3 63362 NULL
120517 +idmouse_read_63374 idmouse_read 3 63374 NULL
120518 +usbnet_read_cmd_nopm_63388 usbnet_read_cmd_nopm 7 63388 NULL nohasharray
120519 +edac_pci_alloc_ctl_info_63388 edac_pci_alloc_ctl_info 1 63388 &usbnet_read_cmd_nopm_63388
120520 +rxpipe_missed_beacon_host_int_trig_rx_data_read_63405 rxpipe_missed_beacon_host_int_trig_rx_data_read 3 63405 NULL
120521 +nouveau_event_create_63411 nouveau_event_create 1 63411 NULL
120522 +l2cap_sock_sendmsg_63427 l2cap_sock_sendmsg 4 63427 NULL
120523 +nfsd_symlink_63442 nfsd_symlink 6 63442 NULL
120524 +si5351_bulk_write_63468 si5351_bulk_write 2-3 63468 NULL
120525 +snd_info_entry_write_63474 snd_info_entry_write 3 63474 NULL
120526 +reada_find_extent_63486 reada_find_extent 2 63486 NULL
120527 +read_kcore_63488 read_kcore 3 63488 NULL
120528 +iwl_dbgfs_bcast_filters_read_63489 iwl_dbgfs_bcast_filters_read 3 63489 NULL
120529 +snd_pcm_plug_write_transfer_63503 snd_pcm_plug_write_transfer 0-3 63503 NULL
120530 +efx_mcdi_rpc_async_63529 efx_mcdi_rpc_async 4-5 63529 NULL
120531 +ubi_more_leb_change_data_63534 ubi_more_leb_change_data 4 63534 NULL nohasharray
120532 +generic_cont_expand_simple_63534 generic_cont_expand_simple 0 63534 &ubi_more_leb_change_data_63534
120533 +write_file_spectral_period_63536 write_file_spectral_period 3 63536 NULL
120534 +if_sdio_read_scratch_63540 if_sdio_read_scratch 0 63540 NULL
120535 +append_to_buffer_63550 append_to_buffer 3 63550 NULL
120536 +kvm_write_guest_page_63555 kvm_write_guest_page 5 63555 NULL
120537 +rproc_alloc_63577 rproc_alloc 5 63577 NULL
120538 +write_debug_level_63613 write_debug_level 3 63613 NULL
120539 +__spi_validate_63618 __spi_validate 0 63618 NULL
120540 +symbol_build_supp_rates_63634 symbol_build_supp_rates 0 63634 NULL
120541 +hid_report_len_63637 hid_report_len 0 63637 NULL
120542 +proc_loginuid_write_63648 proc_loginuid_write 3 63648 NULL
120543 +ValidateDSDParamsChecksum_63654 ValidateDSDParamsChecksum 3 63654 NULL
120544 +ldlm_cli_enqueue_63657 ldlm_cli_enqueue 8 63657 NULL
120545 +hidraw_ioctl_63658 hidraw_ioctl 2 63658 NULL
120546 +vbi_read_63673 vbi_read 3 63673 NULL
120547 +write_file_spectral_fft_period_63696 write_file_spectral_fft_period 3 63696 NULL
120548 +nouveau_object_create__63715 nouveau_object_create_ 5 63715 NULL
120549 +btrfs_insert_delayed_dir_index_63720 btrfs_insert_delayed_dir_index 4 63720 NULL
120550 +selinux_secctx_to_secid_63744 selinux_secctx_to_secid 2 63744 NULL
120551 +snd_pcm_oss_read1_63771 snd_pcm_oss_read1 3 63771 NULL
120552 +snd_pcm_link_63772 snd_pcm_link 0 63772 NULL
120553 +snd_opl4_mem_proc_read_63774 snd_opl4_mem_proc_read 5 63774 NULL
120554 +spidev_compat_ioctl_63778 spidev_compat_ioctl 2 63778 NULL
120555 +mwifiex_11n_create_rx_reorder_tbl_63806 mwifiex_11n_create_rx_reorder_tbl 4 63806 NULL
120556 +copy_nodes_to_user_63807 copy_nodes_to_user 2 63807 NULL
120557 +C_SYSC_process_vm_readv_63811 C_SYSC_process_vm_readv 3-5 63811 NULL
120558 +regmap_multi_reg_write_63826 regmap_multi_reg_write 3 63826 NULL
120559 +sel_write_load_63830 sel_write_load 3 63830 NULL
120560 +proc_pid_attr_write_63845 proc_pid_attr_write 3 63845 NULL
120561 +xhci_alloc_stream_info_63902 xhci_alloc_stream_info 3 63902 NULL
120562 +uvc_alloc_urb_buffers_63922 uvc_alloc_urb_buffers 0-2-3 63922 NULL
120563 +snd_compr_write_63923 snd_compr_write 3 63923 NULL
120564 +afs_send_simple_reply_63940 afs_send_simple_reply 3 63940 NULL
120565 +__team_options_register_63941 __team_options_register 3 63941 NULL
120566 +macvtap_recvmsg_63949 macvtap_recvmsg 4 63949 NULL
120567 +set_bredr_63975 set_bredr 4 63975 NULL
120568 +construct_key_and_link_63985 construct_key_and_link 3 63985 NULL
120569 +rs_extent_to_bm_page_63996 rs_extent_to_bm_page 0-1 63996 NULL
120570 +read_file_frameerrors_64001 read_file_frameerrors 3 64001 NULL
120571 +SyS_rt_sigpending_64018 SyS_rt_sigpending 2 64018 NULL
120572 +dbAllocDmapLev_64030 dbAllocDmapLev 0 64030 NULL
120573 +SyS_fsetxattr_64039 SyS_fsetxattr 4 64039 NULL
120574 +get_u8_64076 get_u8 0 64076 NULL
120575 +xilly_malloc_64077 xilly_malloc 2 64077 NULL
120576 +sl_realloc_bufs_64086 sl_realloc_bufs 2 64086 NULL
120577 +vmci_handle_arr_get_size_64088 vmci_handle_arr_get_size 0 64088 NULL
120578 +lbs_highrssi_read_64089 lbs_highrssi_read 3 64089 NULL
120579 +SyS_set_mempolicy_64096 SyS_set_mempolicy 3 64096 NULL
120580 +to_bytes_64103 to_bytes 0-1 64103 NULL
120581 +SyS_mq_timedsend_64107 SyS_mq_timedsend 3 64107 NULL
120582 +rdma_addr_size_64116 rdma_addr_size 0 64116 NULL
120583 +do_load_xattr_datum_64118 do_load_xattr_datum 0 64118 NULL
120584 +bypass_wd_write_64120 bypass_wd_write 3 64120 NULL
120585 +ext4_prepare_inline_data_64124 ext4_prepare_inline_data 3 64124 NULL
120586 +init_bch_64130 init_bch 1-2 64130 NULL
120587 +ablkcipher_copy_iv_64140 ablkcipher_copy_iv 3 64140 NULL
120588 +dlfb_ops_write_64150 dlfb_ops_write 3 64150 NULL
120589 +bnx2x_vf_mcast_64166 bnx2x_vf_mcast 4 64166 NULL
120590 +cpumask_scnprintf_64170 cpumask_scnprintf 0-2 64170 NULL
120591 +kernfs_iop_setxattr_64220 kernfs_iop_setxattr 4 64220 NULL
120592 +xfs_vm_direct_IO_64223 xfs_vm_direct_IO 4 64223 NULL
120593 +read_pulse_64227 read_pulse 0-3 64227 NULL
120594 +ea_len_64229 ea_len 0 64229 NULL
120595 +io_capture_transfer_64276 io_capture_transfer 4 64276 NULL
120596 +btrfs_file_extent_offset_64278 btrfs_file_extent_offset 0 64278 NULL
120597 +sta_current_tx_rate_read_64286 sta_current_tx_rate_read 3 64286 NULL
120598 +xfs_dir_cilookup_result_64288 xfs_dir_cilookup_result 3 64288 NULL nohasharray
120599 +event_id_read_64288 event_id_read 3 64288 &xfs_dir_cilookup_result_64288
120600 +ocfs2_block_check_validate_bhs_64302 ocfs2_block_check_validate_bhs 0 64302 NULL
120601 +snd_hda_get_sub_nodes_64304 snd_hda_get_sub_nodes 0 64304 NULL
120602 +error_error_bar_retry_read_64305 error_error_bar_retry_read 3 64305 NULL
120603 +sisusbcon_clear_64329 sisusbcon_clear 4-3-5 64329 NULL
120604 +ts_write_64336 ts_write 3 64336 NULL
120605 +usbtmc_write_64340 usbtmc_write 3 64340 NULL
120606 +qlcnic_82xx_calculate_msix_vector_64354 qlcnic_82xx_calculate_msix_vector 0 64354 NULL
120607 +user_regset_copyin_64360 user_regset_copyin 7 64360 NULL
120608 +wlc_phy_loadsampletable_nphy_64367 wlc_phy_loadsampletable_nphy 3 64367 NULL
120609 +reg_create_64372 reg_create 5 64372 NULL nohasharray
120610 +bnx2_enable_msix_64372 bnx2_enable_msix 2 64372 &reg_create_64372
120611 +ilo_write_64378 ilo_write 3 64378 NULL
120612 +btrfs_map_block_64379 btrfs_map_block 3 64379 NULL
120613 +vmcs_readl_64381 vmcs_readl 0 64381 NULL
120614 +nilfs_alloc_seg_bio_64383 nilfs_alloc_seg_bio 3 64383 NULL
120615 +ir_lirc_transmit_ir_64403 ir_lirc_transmit_ir 3 64403 NULL
120616 +pidlist_allocate_64404 pidlist_allocate 1 64404 NULL
120617 +rx_hdr_overflow_read_64407 rx_hdr_overflow_read 3 64407 NULL
120618 +keyctl_get_security_64418 keyctl_get_security 3 64418 NULL
120619 +oom_adj_write_64428 oom_adj_write 3 64428 NULL
120620 +read_file_spectral_short_repeat_64431 read_file_spectral_short_repeat 3 64431 NULL
120621 +ax25_recvmsg_64441 ax25_recvmsg 4 64441 NULL
120622 +__i2c_add_numbered_adapter_64445 __i2c_add_numbered_adapter 0 64445 NULL
120623 +single_open_size_64483 single_open_size 4 64483 NULL
120624 +p54_parse_rssical_64493 p54_parse_rssical 3 64493 NULL
120625 +msg_data_sz_64503 msg_data_sz 0 64503 NULL
120626 +remove_uuid_64505 remove_uuid 4 64505 NULL
120627 +opera1_usb_i2c_msgxfer_64521 opera1_usb_i2c_msgxfer 4 64521 NULL
120628 +iwl_dbgfs_ucode_tracing_write_64524 iwl_dbgfs_ucode_tracing_write 3 64524 NULL
120629 +ses_send_diag_64527 ses_send_diag 4 64527 NULL
120630 +prctl_set_mm_64538 prctl_set_mm 3 64538 NULL
120631 +SyS_bind_64544 SyS_bind 3 64544 NULL
120632 +rbd_obj_read_sync_64554 rbd_obj_read_sync 3-4 64554 NULL
120633 +__btrfs_prealloc_file_range_64557 __btrfs_prealloc_file_range 3 64557 NULL
120634 +ll_max_rw_chunk_seq_write_64561 ll_max_rw_chunk_seq_write 3 64561 NULL nohasharray
120635 +__spi_sync_64561 __spi_sync 0 64561 &ll_max_rw_chunk_seq_write_64561
120636 +__apei_exec_run_64563 __apei_exec_run 0 64563 NULL
120637 +kstrtoul_from_user_64569 kstrtoul_from_user 2 64569 NULL
120638 +do_erase_64574 do_erase 4 64574 NULL
120639 +fanotify_write_64623 fanotify_write 3 64623 NULL
120640 +_iwl_dbgfs_d0i3_refs_write_64642 _iwl_dbgfs_d0i3_refs_write 3 64642 NULL
120641 +regmap_read_debugfs_64658 regmap_read_debugfs 5 64658 NULL
120642 +tlbflush_read_file_64661 tlbflush_read_file 3 64661 NULL nohasharray
120643 +ocfs2_read_xattr_block_64661 ocfs2_read_xattr_block 0 64661 &tlbflush_read_file_64661
120644 +efx_tsoh_get_buffer_64664 efx_tsoh_get_buffer 3 64664 NULL
120645 +rx_rx_out_of_mpdu_nodes_read_64668 rx_rx_out_of_mpdu_nodes_read 3 64668 NULL
120646 +nr_free_zone_pages_64680 nr_free_zone_pages 0 64680 NULL
120647 +snd_pcm_oss_capture_position_fixup_64713 snd_pcm_oss_capture_position_fixup 0 64713 NULL
120648 +dapm_bias_read_file_64715 dapm_bias_read_file 3 64715 NULL
120649 +atomic_add_return_64720 atomic_add_return 0-1 64720 NULL
120650 +i2400m_msg_to_dev_64722 i2400m_msg_to_dev 3 64722 NULL
120651 +squashfs_read_inode_lookup_table_64739 squashfs_read_inode_lookup_table 4 64739 NULL
120652 +bio_map_kern_64751 bio_map_kern 3 64751 NULL
120653 +rt2x00debug_write_csr_64753 rt2x00debug_write_csr 3 64753 NULL
120654 +message_for_md_64777 message_for_md 5 64777 NULL
120655 +isr_low_rssi_read_64789 isr_low_rssi_read 3 64789 NULL
120656 +regmap_reg_ranges_read_file_64798 regmap_reg_ranges_read_file 3 64798 NULL
120657 +nfsctl_transaction_write_64800 nfsctl_transaction_write 3 64800 NULL
120658 +rfkill_fop_write_64808 rfkill_fop_write 3 64808 NULL
120659 +proc_projid_map_write_64810 proc_projid_map_write 3 64810 NULL
120660 +megaraid_change_queue_depth_64815 megaraid_change_queue_depth 2 64815 NULL
120661 +ecryptfs_send_miscdev_64816 ecryptfs_send_miscdev 2 64816 NULL
120662 +do_kimage_alloc_64827 do_kimage_alloc 3 64827 NULL
120663 +altera_set_dr_pre_64862 altera_set_dr_pre 2 64862 NULL
120664 +pci_vc_do_save_buffer_64876 pci_vc_do_save_buffer 0 64876 NULL
120665 +lprocfs_write_u64_helper_64880 lprocfs_write_u64_helper 2 64880 NULL
120666 +ieee80211_if_read_ave_beacon_64924 ieee80211_if_read_ave_beacon 3 64924 NULL
120667 +ip_options_get_from_user_64958 ip_options_get_from_user 4 64958 NULL nohasharray
120668 +tipc_port_iovec_reject_64958 tipc_port_iovec_reject 4 64958 &ip_options_get_from_user_64958
120669 +traceprobe_probes_write_64969 traceprobe_probes_write 3 64969 NULL
120670 +suspend_dtim_interval_read_64971 suspend_dtim_interval_read 3 64971 NULL
120671 +crypto_ahash_digestsize_65014 crypto_ahash_digestsize 0 65014 NULL
120672 +insert_dent_65034 insert_dent 7 65034 NULL
120673 +snd_hda_get_pin_label_65035 snd_hda_get_pin_label 5 65035 NULL
120674 +ext4_ind_trans_blocks_65053 ext4_ind_trans_blocks 0-2 65053 NULL
120675 +pcibios_enable_device_65059 pcibios_enable_device 0 65059 NULL
120676 +make_idx_node_65068 make_idx_node 0 65068 NULL
120677 +__alloc_bootmem_node_high_65076 __alloc_bootmem_node_high 2 65076 NULL
120678 +batadv_socket_write_65083 batadv_socket_write 3 65083 NULL
120679 +ocfs2_truncate_cluster_pages_65086 ocfs2_truncate_cluster_pages 2 65086 NULL
120680 +ath9k_dump_mci_btcoex_65090 ath9k_dump_mci_btcoex 3-0 65090 NULL
120681 +scsi_add_host_with_dma_65093 scsi_add_host_with_dma 0 65093 NULL
120682 +generic_ocp_write_65107 generic_ocp_write 4 65107 NULL
120683 +rx_rx_done_read_65217 rx_rx_done_read 3 65217 NULL
120684 +print_endpoint_stat_65232 print_endpoint_stat 0-3-4 65232 NULL
120685 +whci_n_caps_65247 whci_n_caps 0 65247 NULL
120686 +kmalloc_parameter_65279 kmalloc_parameter 1 65279 NULL
120687 +compat_core_sys_select_65285 compat_core_sys_select 1 65285 NULL
120688 +mpi_set_buffer_65294 mpi_set_buffer 3 65294 NULL
120689 +redirected_tty_write_65297 redirected_tty_write 3 65297 NULL
120690 +get_var_len_65304 get_var_len 0 65304 NULL
120691 +unpack_array_65318 unpack_array 0 65318 NULL
120692 +pci_vpd_find_tag_65325 pci_vpd_find_tag 0-2 65325 NULL
120693 +dccp_setsockopt_service_65336 dccp_setsockopt_service 4 65336 NULL
120694 +dma_rx_requested_read_65354 dma_rx_requested_read 3 65354 NULL
120695 +alloc_cpu_rmap_65363 alloc_cpu_rmap 1 65363 NULL
120696 +SyS_writev_65372 SyS_writev 3 65372 NULL
120697 +__alloc_bootmem_nopanic_65397 __alloc_bootmem_nopanic 1 65397 NULL
120698 +trace_seq_to_user_65398 trace_seq_to_user 3 65398 NULL
120699 +__read_vmcore_65402 __read_vmcore 2 65402 NULL
120700 +ocfs2_write_begin_nolock_65410 ocfs2_write_begin_nolock 3-4 65410 NULL
120701 +device_add_groups_65423 device_add_groups 0 65423 NULL
120702 +xpc_kzalloc_cacheline_aligned_65433 xpc_kzalloc_cacheline_aligned 1 65433 NULL
120703 +usb_alloc_coherent_65444 usb_alloc_coherent 2 65444 NULL
120704 +il_dbgfs_wd_timeout_write_65464 il_dbgfs_wd_timeout_write 3 65464 NULL
120705 +clear_user_65470 clear_user 2 65470 NULL
120706 +dpcm_state_read_file_65489 dpcm_state_read_file 3 65489 NULL
120707 +lookup_inline_extent_backref_65493 lookup_inline_extent_backref 9 65493 NULL
120708 +nvme_trans_standard_inquiry_page_65526 nvme_trans_standard_inquiry_page 4 65526 NULL
120709 +tree_mod_log_eb_copy_65535 tree_mod_log_eb_copy 6 65535 NULL
120710 diff --git a/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data b/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data
120711 new file mode 100644
120712 index 0000000..560cd7b
120713 --- /dev/null
120714 +++ b/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data
120715 @@ -0,0 +1,92 @@
120716 +spa_set_aux_vdevs_746 spa_set_aux_vdevs 3 746 NULL
120717 +zfs_lookup_2144 zfs_lookup 0 2144 NULL
120718 +mappedread_2627 mappedread 2 2627 NULL
120719 +vdev_disk_dio_alloc_2957 vdev_disk_dio_alloc 1 2957 NULL
120720 +nv_alloc_pushpage_spl_4286 nv_alloc_pushpage_spl 2 4286 NULL
120721 +zpl_xattr_get_4574 zpl_xattr_get 0 4574 NULL
120722 +sa_replace_all_by_template_5699 sa_replace_all_by_template 3 5699 NULL
120723 +dmu_write_6048 dmu_write 4-3 6048 NULL
120724 +dmu_buf_hold_array_6095 dmu_buf_hold_array 4-3 6095 NULL
120725 +update_pages_6225 update_pages 2-3 6225 NULL
120726 +bio_nr_pages_7117 bio_nr_pages 0-2 7117 NULL
120727 +dmu_buf_hold_array_by_bonus_8562 dmu_buf_hold_array_by_bonus 3-2 8562 NULL
120728 +zpios_dmu_write_8858 zpios_dmu_write 4-5 8858 NULL
120729 +ddi_copyout_9401 ddi_copyout 3 9401 NULL
120730 +avl_numnodes_12384 avl_numnodes 0 12384 NULL
120731 +dmu_write_uio_dnode_12473 dmu_write_uio_dnode 3 12473 NULL
120732 +dmu_xuio_init_12866 dmu_xuio_init 2 12866 NULL
120733 +zpl_read_common_14389 zpl_read_common 0 14389 NULL
120734 +dmu_snapshot_realname_14632 dmu_snapshot_realname 4 14632 NULL
120735 +kmem_alloc_debug_14852 kmem_alloc_debug 1 14852 NULL
120736 +kmalloc_node_nofail_15151 kmalloc_node_nofail 1 15151 NULL
120737 +dmu_write_uio_16351 dmu_write_uio 4 16351 NULL
120738 +zfs_log_write_16524 zfs_log_write 6-5 16524 NULL
120739 +sa_build_layouts_16910 sa_build_layouts 3 16910 NULL
120740 +dsl_dir_namelen_17053 dsl_dir_namelen 0 17053 NULL
120741 +kcopy_copy_to_user_17336 kcopy_copy_to_user 5 17336 NULL
120742 +sa_add_layout_entry_17507 sa_add_layout_entry 3 17507 NULL
120743 +sa_attr_table_setup_18029 sa_attr_table_setup 3 18029 NULL
120744 +uiocopy_18680 uiocopy 2 18680 NULL
120745 +dmu_buf_hold_array_by_dnode_19125 dmu_buf_hold_array_by_dnode 2-3 19125 NULL
120746 +zpl_acl_from_xattr_21141 zpl_acl_from_xattr 2 21141 NULL
120747 +dsl_pool_tx_assign_init_22518 dsl_pool_tx_assign_init 2 22518 NULL
120748 +nvlist_lookup_byte_array_22527 nvlist_lookup_byte_array 0 22527 NULL
120749 +sa_replace_all_by_template_locked_22533 sa_replace_all_by_template_locked 3 22533 NULL
120750 +tsd_hash_table_init_22559 tsd_hash_table_init 1 22559 NULL
120751 +spa_vdev_remove_aux_23966 spa_vdev_remove_aux 4 23966 NULL
120752 +zpl_xattr_acl_set_access_24129 zpl_xattr_acl_set_access 4 24129 NULL
120753 +dmu_assign_arcbuf_24622 dmu_assign_arcbuf 2 24622 NULL
120754 +zap_lookup_norm_25166 zap_lookup_norm 9 25166 NULL
120755 +dmu_prealloc_25456 dmu_prealloc 4-3 25456 NULL
120756 +kmalloc_nofail_26347 kmalloc_nofail 1 26347 NULL
120757 +zfsctl_snapshot_zpath_27578 zfsctl_snapshot_zpath 2 27578 NULL
120758 +zpios_dmu_read_30015 zpios_dmu_read 4-5 30015 NULL
120759 +splat_write_30943 splat_write 3 30943 NULL
120760 +zpl_xattr_get_sa_31183 zpl_xattr_get_sa 0 31183 NULL
120761 +dmu_read_uio_31467 dmu_read_uio 4 31467 NULL
120762 +zfs_replay_fuids_31479 zfs_replay_fuids 4 31479 NULL
120763 +spa_history_log_to_phys_31632 spa_history_log_to_phys 0-1 31632 NULL
120764 +__zpl_xattr_get_32601 __zpl_xattr_get 0 32601 NULL
120765 +proc_copyout_string_34049 proc_copyout_string 2 34049 NULL
120766 +nv_alloc_sleep_spl_34544 nv_alloc_sleep_spl 2 34544 NULL
120767 +nv_alloc_nosleep_spl_34761 nv_alloc_nosleep_spl 2 34761 NULL
120768 +zap_leaf_array_match_36922 zap_leaf_array_match 4 36922 NULL
120769 +copyinstr_36980 copyinstr 3 36980 NULL
120770 +zpl_xattr_acl_set_default_37864 zpl_xattr_acl_set_default 4 37864 NULL
120771 +splat_read_38116 splat_read 3 38116 NULL
120772 +sa_setup_38756 sa_setup 4 38756 NULL
120773 +vdev_disk_physio_39898 vdev_disk_physio 3 39898 NULL
120774 +arc_buf_size_39982 arc_buf_size 0 39982 NULL
120775 +kzalloc_nofail_40719 kzalloc_nofail 1 40719 NULL
120776 +fuidstr_to_sid_40777 fuidstr_to_sid 4 40777 NULL
120777 +vdev_raidz_matrix_reconstruct_40852 vdev_raidz_matrix_reconstruct 2-3 40852 NULL
120778 +sa_find_layout_40892 sa_find_layout 4 40892 NULL
120779 +zpl_xattr_get_dir_41918 zpl_xattr_get_dir 0 41918 NULL
120780 +zfs_sa_get_xattr_42600 zfs_sa_get_xattr 0 42600 NULL
120781 +zpl_xattr_acl_set_42808 zpl_xattr_acl_set 4 42808 NULL
120782 +xdr_dec_array_43091 xdr_dec_array 5 43091 NULL
120783 +dsl_dataset_namelen_43136 dsl_dataset_namelen 0 43136 NULL
120784 +kcopy_write_43683 kcopy_write 3 43683 NULL
120785 +uiomove_44355 uiomove 2 44355 NULL
120786 +dmu_read_44418 dmu_read 4-3 44418 NULL
120787 +ddi_copyin_44846 ddi_copyin 3 44846 NULL
120788 +kcopy_do_get_45061 kcopy_do_get 5 45061 NULL
120789 +copyin_45945 copyin 3 45945 NULL
120790 +zil_itx_create_46555 zil_itx_create 2 46555 NULL
120791 +dmu_write_uio_dbuf_48064 dmu_write_uio_dbuf 3 48064 NULL
120792 +blk_rq_pos_48233 blk_rq_pos 0 48233 NULL
120793 +spa_history_write_49650 spa_history_write 3 49650 NULL
120794 +kcopy_copy_pages_to_user_49823 kcopy_copy_pages_to_user 3-4 49823 NULL
120795 +zfs_log_write_50162 zfs_log_write 6-5 50162 NULL
120796 +i_fm_alloc_51038 i_fm_alloc 2 51038 NULL
120797 +copyout_51409 copyout 3 51409 NULL
120798 +zvol_log_write_54898 zvol_log_write 4-3 54898 NULL
120799 +zfs_acl_node_alloc_55641 zfs_acl_node_alloc 1 55641 NULL
120800 +get_nvlist_56685 get_nvlist 2 56685 NULL
120801 +zprop_get_numprops_56820 zprop_get_numprops 0 56820 NULL
120802 +splat_taskq_test4_common_59829 splat_taskq_test4_common 5 59829 NULL
120803 +zfs_replay_domain_cnt_61399 zfs_replay_domain_cnt 0 61399 NULL
120804 +zpios_write_61823 zpios_write 3 61823 NULL
120805 +proc_copyin_string_62019 proc_copyin_string 4 62019 NULL
120806 +random_get_pseudo_bytes_64611 random_get_pseudo_bytes 2 64611 NULL
120807 +zpios_read_64734 zpios_read 3 64734 NULL
120808 diff --git a/tools/gcc/size_overflow_plugin/size_overflow_plugin.c b/tools/gcc/size_overflow_plugin/size_overflow_plugin.c
120809 new file mode 100644
120810 index 0000000..a15328d
120811 --- /dev/null
120812 +++ b/tools/gcc/size_overflow_plugin/size_overflow_plugin.c
120813 @@ -0,0 +1,259 @@
120814 +/*
120815 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
120816 + * Licensed under the GPL v2, or (at your option) v3
120817 + *
120818 + * Homepage:
120819 + * http://www.grsecurity.net/~ephox/overflow_plugin/
120820 + *
120821 + * Documentation:
120822 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
120823 + *
120824 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
120825 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
120826 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
120827 + *
120828 + * Usage:
120829 + * $ make
120830 + * $ make run
120831 + */
120832 +
120833 +#include "gcc-common.h"
120834 +#include "size_overflow.h"
120835 +
120836 +int plugin_is_GPL_compatible;
120837 +
120838 +tree report_size_overflow_decl;
120839 +
120840 +tree size_overflow_type_HI;
120841 +tree size_overflow_type_SI;
120842 +tree size_overflow_type_DI;
120843 +tree size_overflow_type_TI;
120844 +
120845 +static struct plugin_info size_overflow_plugin_info = {
120846 + .version = "20140713",
120847 + .help = "no-size-overflow\tturn off size overflow checking\n",
120848 +};
120849 +
120850 +static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
120851 +{
120852 + unsigned int arg_count;
120853 + enum tree_code code = TREE_CODE(*node);
120854 +
120855 + switch (code) {
120856 + case FUNCTION_DECL:
120857 + arg_count = type_num_arguments(TREE_TYPE(*node));
120858 + break;
120859 + case FUNCTION_TYPE:
120860 + case METHOD_TYPE:
120861 + arg_count = type_num_arguments(*node);
120862 + break;
120863 + default:
120864 + *no_add_attrs = true;
120865 + error("%s: %qE attribute only applies to functions", __func__, name);
120866 + return NULL_TREE;
120867 + }
120868 +
120869 + for (; args; args = TREE_CHAIN(args)) {
120870 + tree position = TREE_VALUE(args);
120871 + if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
120872 + error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
120873 + *no_add_attrs = true;
120874 + }
120875 + }
120876 + return NULL_TREE;
120877 +}
120878 +
120879 +static tree handle_intentional_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
120880 +{
120881 + unsigned int arg_count;
120882 + enum tree_code code = TREE_CODE(*node);
120883 +
120884 + switch (code) {
120885 + case FUNCTION_DECL:
120886 + arg_count = type_num_arguments(TREE_TYPE(*node));
120887 + break;
120888 + case FUNCTION_TYPE:
120889 + case METHOD_TYPE:
120890 + arg_count = type_num_arguments(*node);
120891 + break;
120892 + case FIELD_DECL:
120893 + return NULL_TREE;
120894 + default:
120895 + *no_add_attrs = true;
120896 + error("%qE attribute only applies to functions", name);
120897 + return NULL_TREE;
120898 + }
120899 +
120900 + if (TREE_INT_CST_HIGH(TREE_VALUE(args)) != 0)
120901 + return NULL_TREE;
120902 +
120903 + for (; args; args = TREE_CHAIN(args)) {
120904 + tree position = TREE_VALUE(args);
120905 + if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
120906 + error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
120907 + *no_add_attrs = true;
120908 + }
120909 + }
120910 + return NULL_TREE;
120911 +}
120912 +
120913 +static struct attribute_spec size_overflow_attr = {
120914 + .name = "size_overflow",
120915 + .min_length = 1,
120916 + .max_length = -1,
120917 + .decl_required = true,
120918 + .type_required = false,
120919 + .function_type_required = false,
120920 + .handler = handle_size_overflow_attribute,
120921 +#if BUILDING_GCC_VERSION >= 4007
120922 + .affects_type_identity = false
120923 +#endif
120924 +};
120925 +
120926 +static struct attribute_spec intentional_overflow_attr = {
120927 + .name = "intentional_overflow",
120928 + .min_length = 1,
120929 + .max_length = -1,
120930 + .decl_required = true,
120931 + .type_required = false,
120932 + .function_type_required = false,
120933 + .handler = handle_intentional_overflow_attribute,
120934 +#if BUILDING_GCC_VERSION >= 4007
120935 + .affects_type_identity = false
120936 +#endif
120937 +};
120938 +
120939 +static void register_attributes(void __unused *event_data, void __unused *data)
120940 +{
120941 + register_attribute(&size_overflow_attr);
120942 + register_attribute(&intentional_overflow_attr);
120943 +}
120944 +
120945 +static tree create_typedef(tree type, const char* ident)
120946 +{
120947 + tree new_type, decl;
120948 +
120949 + new_type = build_variant_type_copy(type);
120950 + decl = build_decl(BUILTINS_LOCATION, TYPE_DECL, get_identifier(ident), new_type);
120951 + DECL_ORIGINAL_TYPE(decl) = type;
120952 + TYPE_NAME(new_type) = decl;
120953 + return new_type;
120954 +}
120955 +
120956 +// Create the noreturn report_size_overflow() function decl.
120957 +static void size_overflow_start_unit(void __unused *gcc_data, void __unused *user_data)
120958 +{
120959 + tree const_char_ptr_type_node;
120960 + tree fntype;
120961 +
120962 + const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0));
120963 +
120964 + size_overflow_type_HI = create_typedef(intHI_type_node, "size_overflow_type_HI");
120965 + size_overflow_type_SI = create_typedef(intSI_type_node, "size_overflow_type_SI");
120966 + size_overflow_type_DI = create_typedef(intDI_type_node, "size_overflow_type_DI");
120967 + size_overflow_type_TI = create_typedef(intTI_type_node, "size_overflow_type_TI");
120968 +
120969 + // void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func, const char *ssa_var)
120970 + fntype = build_function_type_list(void_type_node,
120971 + const_char_ptr_type_node,
120972 + unsigned_type_node,
120973 + const_char_ptr_type_node,
120974 + const_char_ptr_type_node,
120975 + NULL_TREE);
120976 + report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype);
120977 +
120978 + DECL_ASSEMBLER_NAME(report_size_overflow_decl);
120979 + TREE_PUBLIC(report_size_overflow_decl) = 1;
120980 + DECL_EXTERNAL(report_size_overflow_decl) = 1;
120981 + DECL_ARTIFICIAL(report_size_overflow_decl) = 1;
120982 + TREE_THIS_VOLATILE(report_size_overflow_decl) = 1;
120983 +}
120984 +
120985 +
120986 +extern struct gimple_opt_pass pass_dce;
120987 +
120988 +static struct opt_pass *make_dce_pass(void)
120989 +{
120990 +#if BUILDING_GCC_VERSION >= 4009
120991 + return make_pass_dce(g);
120992 +#else
120993 + return &pass_dce.pass;
120994 +#endif
120995 +}
120996 +
120997 +
120998 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
120999 +{
121000 + int i;
121001 + const char * const plugin_name = plugin_info->base_name;
121002 + const int argc = plugin_info->argc;
121003 + const struct plugin_argument * const argv = plugin_info->argv;
121004 + bool enable = true;
121005 + struct register_pass_info insert_size_overflow_asm_pass_info;
121006 + struct register_pass_info __unused dump_before_pass_info;
121007 + struct register_pass_info __unused dump_after_pass_info;
121008 + struct register_pass_info insert_size_overflow_check_info;
121009 + struct register_pass_info dce_pass_info;
121010 + static const struct ggc_root_tab gt_ggc_r_gt_size_overflow[] = {
121011 + {
121012 + .base = &report_size_overflow_decl,
121013 + .nelt = 1,
121014 + .stride = sizeof(report_size_overflow_decl),
121015 + .cb = &gt_ggc_mx_tree_node,
121016 + .pchw = &gt_pch_nx_tree_node
121017 + },
121018 + LAST_GGC_ROOT_TAB
121019 + };
121020 +
121021 + insert_size_overflow_asm_pass_info.pass = make_insert_size_overflow_asm_pass();
121022 + insert_size_overflow_asm_pass_info.reference_pass_name = "ssa";
121023 + insert_size_overflow_asm_pass_info.ref_pass_instance_number = 1;
121024 + insert_size_overflow_asm_pass_info.pos_op = PASS_POS_INSERT_AFTER;
121025 +
121026 + dump_before_pass_info.pass = make_dump_pass();
121027 + dump_before_pass_info.reference_pass_name = "increase_alignment";
121028 + dump_before_pass_info.ref_pass_instance_number = 1;
121029 + dump_before_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
121030 +
121031 + insert_size_overflow_check_info.pass = make_insert_size_overflow_check();
121032 + insert_size_overflow_check_info.reference_pass_name = "increase_alignment";
121033 + insert_size_overflow_check_info.ref_pass_instance_number = 1;
121034 + insert_size_overflow_check_info.pos_op = PASS_POS_INSERT_BEFORE;
121035 +
121036 + dump_after_pass_info.pass = make_dump_pass();
121037 + dump_after_pass_info.reference_pass_name = "increase_alignment";
121038 + dump_after_pass_info.ref_pass_instance_number = 1;
121039 + dump_after_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
121040 +
121041 + dce_pass_info.pass = make_dce_pass();
121042 + dce_pass_info.reference_pass_name = "vrp";
121043 + dce_pass_info.ref_pass_instance_number = 1;
121044 + dce_pass_info.pos_op = PASS_POS_INSERT_AFTER;
121045 +
121046 + if (!plugin_default_version_check(version, &gcc_version)) {
121047 + error(G_("incompatible gcc/plugin versions"));
121048 + return 1;
121049 + }
121050 +
121051 + for (i = 0; i < argc; ++i) {
121052 + if (!strcmp(argv[i].key, "no-size-overflow")) {
121053 + enable = false;
121054 + continue;
121055 + }
121056 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
121057 + }
121058 +
121059 + register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info);
121060 + if (enable) {
121061 + register_callback(plugin_name, PLUGIN_START_UNIT, &size_overflow_start_unit, NULL);
121062 + register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_size_overflow);
121063 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &insert_size_overflow_asm_pass_info);
121064 +// register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dump_before_pass_info);
121065 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &insert_size_overflow_check_info);
121066 +// register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dump_after_pass_info);
121067 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dce_pass_info);
121068 + }
121069 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
121070 +
121071 + return 0;
121072 +}
121073 diff --git a/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c b/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c
121074 new file mode 100644
121075 index 0000000..0888f6c
121076 --- /dev/null
121077 +++ b/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c
121078 @@ -0,0 +1,364 @@
121079 +/*
121080 + * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
121081 + * Licensed under the GPL v2, or (at your option) v3
121082 + *
121083 + * Homepage:
121084 + * http://www.grsecurity.net/~ephox/overflow_plugin/
121085 + *
121086 + * Documentation:
121087 + * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
121088 + *
121089 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
121090 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
121091 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
121092 + *
121093 + * Usage:
121094 + * $ make
121095 + * $ make run
121096 + */
121097 +
121098 +#include "gcc-common.h"
121099 +#include "size_overflow.h"
121100 +
121101 +#include "size_overflow_hash.h"
121102 +#include "size_overflow_hash_aux.h"
121103 +
121104 +#define CODES_LIMIT 32
121105 +
121106 +static unsigned char get_tree_code(const_tree type)
121107 +{
121108 + switch (TREE_CODE(type)) {
121109 + case ARRAY_TYPE:
121110 + return 0;
121111 + case BOOLEAN_TYPE:
121112 + return 1;
121113 + case ENUMERAL_TYPE:
121114 + return 2;
121115 + case FUNCTION_TYPE:
121116 + return 3;
121117 + case INTEGER_TYPE:
121118 + return 4;
121119 + case POINTER_TYPE:
121120 + return 5;
121121 + case RECORD_TYPE:
121122 + return 6;
121123 + case UNION_TYPE:
121124 + return 7;
121125 + case VOID_TYPE:
121126 + return 8;
121127 + case REAL_TYPE:
121128 + return 9;
121129 + case VECTOR_TYPE:
121130 + return 10;
121131 + case REFERENCE_TYPE:
121132 + return 11;
121133 + case OFFSET_TYPE:
121134 + return 12;
121135 + case COMPLEX_TYPE:
121136 + return 13;
121137 + default:
121138 + debug_tree((tree)type);
121139 + gcc_unreachable();
121140 + }
121141 +}
121142 +
121143 +struct function_hash {
121144 + size_t tree_codes_len;
121145 + unsigned char tree_codes[CODES_LIMIT];
121146 + const_tree fndecl;
121147 + unsigned int hash;
121148 +};
121149 +
121150 +// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html
121151 +static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed)
121152 +{
121153 +#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); }
121154 +#define cwmixa( in ) { cwfold( in, m, k, h ); }
121155 +#define cwmixb( in ) { cwfold( in, n, h, k ); }
121156 +
121157 + unsigned int m = 0x57559429;
121158 + unsigned int n = 0x5052acdb;
121159 + const unsigned int *key4 = (const unsigned int *)key;
121160 + unsigned int h = len;
121161 + unsigned int k = len + seed + n;
121162 + unsigned long long p;
121163 +
121164 + while (len >= 8) {
121165 + cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2;
121166 + len -= 8;
121167 + }
121168 + if (len >= 4) {
121169 + cwmixb(key4[0]) key4 += 1;
121170 + len -= 4;
121171 + }
121172 + if (len)
121173 + cwmixa(key4[0] & ((1 << (len * 8)) - 1 ));
121174 + cwmixb(h ^ (k + n));
121175 + return k ^ h;
121176 +
121177 +#undef cwfold
121178 +#undef cwmixa
121179 +#undef cwmixb
121180 +}
121181 +
121182 +static void set_hash(const char *fn_name, struct function_hash *fn_hash_data)
121183 +{
121184 + unsigned int fn, codes, seed = 0;
121185 +
121186 + fn = CrapWow(fn_name, strlen(fn_name), seed) & 0xffff;
121187 + codes = CrapWow((const char*)fn_hash_data->tree_codes, fn_hash_data->tree_codes_len, seed) & 0xffff;
121188 +
121189 + fn_hash_data->hash = fn ^ codes;
121190 +}
121191 +
121192 +static void set_node_codes(const_tree type, struct function_hash *fn_hash_data)
121193 +{
121194 + gcc_assert(type != NULL_TREE);
121195 + gcc_assert(TREE_CODE_CLASS(TREE_CODE(type)) == tcc_type);
121196 +
121197 + while (type && fn_hash_data->tree_codes_len < CODES_LIMIT) {
121198 + fn_hash_data->tree_codes[fn_hash_data->tree_codes_len] = get_tree_code(type);
121199 + fn_hash_data->tree_codes_len++;
121200 + type = TREE_TYPE(type);
121201 + }
121202 +}
121203 +
121204 +static void set_result_codes(const_tree node, struct function_hash *fn_hash_data)
121205 +{
121206 + const_tree result;
121207 +
121208 + gcc_assert(node != NULL_TREE);
121209 +
121210 + if (DECL_P(node)) {
121211 + result = DECL_RESULT(node);
121212 + if (result != NULL_TREE)
121213 + return set_node_codes(TREE_TYPE(result), fn_hash_data);
121214 + return set_result_codes(TREE_TYPE(node), fn_hash_data);
121215 + }
121216 +
121217 + gcc_assert(TYPE_P(node));
121218 +
121219 + if (TREE_CODE(node) == FUNCTION_TYPE)
121220 + return set_result_codes(TREE_TYPE(node), fn_hash_data);
121221 +
121222 + return set_node_codes(node, fn_hash_data);
121223 +}
121224 +
121225 +static void set_function_codes(struct function_hash *fn_hash_data)
121226 +{
121227 + const_tree arg, type = TREE_TYPE(fn_hash_data->fndecl);
121228 + enum tree_code code = TREE_CODE(type);
121229 +
121230 + gcc_assert(code == FUNCTION_TYPE || code == METHOD_TYPE);
121231 +
121232 + set_result_codes(fn_hash_data->fndecl, fn_hash_data);
121233 +
121234 + for (arg = TYPE_ARG_TYPES(type); arg != NULL_TREE && fn_hash_data->tree_codes_len < CODES_LIMIT; arg = TREE_CHAIN(arg))
121235 + set_node_codes(TREE_VALUE(arg), fn_hash_data);
121236 +}
121237 +
121238 +static const struct size_overflow_hash *get_proper_hash_chain(const struct size_overflow_hash *entry, const char *func_name)
121239 +{
121240 + while (entry) {
121241 + if (!strcmp(entry->name, func_name))
121242 + return entry;
121243 + entry = entry->next;
121244 + }
121245 + return NULL;
121246 +}
121247 +
121248 +const struct size_overflow_hash *get_function_hash(const_tree fndecl)
121249 +{
121250 + const struct size_overflow_hash *entry;
121251 + struct function_hash fn_hash_data;
121252 + const char *func_name;
121253 +
121254 + // skip builtins __builtin_constant_p
121255 + if (DECL_BUILT_IN(fndecl))
121256 + return NULL;
121257 +
121258 + fn_hash_data.fndecl = fndecl;
121259 + fn_hash_data.tree_codes_len = 0;
121260 +
121261 + set_function_codes(&fn_hash_data);
121262 + gcc_assert(fn_hash_data.tree_codes_len != 0);
121263 +
121264 + func_name = DECL_NAME_POINTER(fn_hash_data.fndecl);
121265 + set_hash(func_name, &fn_hash_data);
121266 +
121267 + entry = size_overflow_hash[fn_hash_data.hash];
121268 + entry = get_proper_hash_chain(entry, func_name);
121269 + if (entry)
121270 + return entry;
121271 + entry = size_overflow_hash_aux[fn_hash_data.hash];
121272 + return get_proper_hash_chain(entry, func_name);
121273 +}
121274 +
121275 +static void print_missing_msg(const_tree func, unsigned int argnum)
121276 +{
121277 + location_t loc;
121278 + const char *curfunc;
121279 + struct function_hash fn_hash_data;
121280 +
121281 + fn_hash_data.fndecl = DECL_ORIGIN(func);
121282 + fn_hash_data.tree_codes_len = 0;
121283 +
121284 + loc = DECL_SOURCE_LOCATION(fn_hash_data.fndecl);
121285 + curfunc = DECL_NAME_POINTER(fn_hash_data.fndecl);
121286 +
121287 + set_function_codes(&fn_hash_data);
121288 + set_hash(curfunc, &fn_hash_data);
121289 +
121290 + inform(loc, "Function %s is missing from the size_overflow hash table +%s+%u+%u+", curfunc, curfunc, argnum, fn_hash_data.hash);
121291 +}
121292 +
121293 +unsigned int find_arg_number_tree(const_tree arg, const_tree func)
121294 +{
121295 + tree var;
121296 + unsigned int argnum = 1;
121297 +
121298 + if (TREE_CODE(arg) == SSA_NAME)
121299 + arg = SSA_NAME_VAR(arg);
121300 +
121301 + for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var), argnum++) {
121302 + if (!operand_equal_p(arg, var, 0) && strcmp(DECL_NAME_POINTER(var), DECL_NAME_POINTER(arg)))
121303 + continue;
121304 + if (!skip_types(var))
121305 + return argnum;
121306 + }
121307 +
121308 + return CANNOT_FIND_ARG;
121309 +}
121310 +
121311 +static const char *get_asm_string(const_gimple stmt)
121312 +{
121313 + if (!stmt)
121314 + return NULL;
121315 + if (gimple_code(stmt) != GIMPLE_ASM)
121316 + return NULL;
121317 +
121318 + return gimple_asm_string(stmt);
121319 +}
121320 +
121321 +bool is_size_overflow_intentional_asm_turn_off(const_gimple stmt)
121322 +{
121323 + const char *str;
121324 +
121325 + str = get_asm_string(stmt);
121326 + if (!str)
121327 + return false;
121328 + return !strncmp(str, TURN_OFF_ASM_STR, sizeof(TURN_OFF_ASM_STR) - 1);
121329 +}
121330 +
121331 +bool is_size_overflow_intentional_asm_yes(const_gimple stmt)
121332 +{
121333 + const char *str;
121334 +
121335 + str = get_asm_string(stmt);
121336 + if (!str)
121337 + return false;
121338 + return !strncmp(str, YES_ASM_STR, sizeof(YES_ASM_STR) - 1);
121339 +}
121340 +
121341 +bool is_size_overflow_asm(const_gimple stmt)
121342 +{
121343 + const char *str;
121344 +
121345 + str = get_asm_string(stmt);
121346 + if (!str)
121347 + return false;
121348 + return !strncmp(str, OK_ASM_STR, sizeof(OK_ASM_STR) - 1);
121349 +}
121350 +
121351 +bool is_a_return_check(const_tree node)
121352 +{
121353 + if (TREE_CODE(node) == FUNCTION_DECL)
121354 + return true;
121355 +
121356 + gcc_assert(TREE_CODE(node) == PARM_DECL);
121357 + return false;
121358 +}
121359 +
121360 +// Get the argnum of a function decl, if node is a return then the argnum is 0
121361 +unsigned int get_function_num(const_tree node, const_tree orig_fndecl)
121362 +{
121363 + if (is_a_return_check(node))
121364 + return 0;
121365 + else
121366 + return find_arg_number_tree(node, orig_fndecl);
121367 +}
121368 +
121369 +unsigned int get_correct_arg_count(unsigned int argnum, const_tree fndecl)
121370 +{
121371 + const struct size_overflow_hash *hash;
121372 + unsigned int new_argnum;
121373 + tree arg;
121374 + const_tree origarg;
121375 +
121376 + if (argnum == 0)
121377 + return argnum;
121378 +
121379 + hash = get_function_hash(fndecl);
121380 + if (hash && hash->param & (1U << argnum))
121381 + return argnum;
121382 +
121383 + if (DECL_EXTERNAL(fndecl))
121384 + return argnum;
121385 +
121386 + origarg = DECL_ARGUMENTS(DECL_ORIGIN(fndecl));
121387 + argnum--;
121388 + while (origarg && argnum) {
121389 + origarg = TREE_CHAIN(origarg);
121390 + argnum--;
121391 + }
121392 + gcc_assert(argnum == 0);
121393 + gcc_assert(origarg != NULL_TREE);
121394 +
121395 + for (arg = DECL_ARGUMENTS(fndecl), new_argnum = 1; arg; arg = TREE_CHAIN(arg), new_argnum++)
121396 + if (operand_equal_p(origarg, arg, 0) || !strcmp(DECL_NAME_POINTER(origarg), DECL_NAME_POINTER(arg)))
121397 + return new_argnum;
121398 +
121399 + return CANNOT_FIND_ARG;
121400 +}
121401 +
121402 +static bool is_in_hash_table(const_tree fndecl, unsigned int num)
121403 +{
121404 + const struct size_overflow_hash *hash;
121405 +
121406 + hash = get_function_hash(fndecl);
121407 + if (hash && (hash->param & (1U << num)))
121408 + return true;
121409 + return false;
121410 +}
121411 +
121412 +/* Check if the function has a size_overflow attribute or it is in the size_overflow hash table.
121413 + * If the function is missing everywhere then print the missing message into stderr.
121414 + */
121415 +bool is_missing_function(const_tree orig_fndecl, unsigned int num)
121416 +{
121417 + switch (DECL_FUNCTION_CODE(orig_fndecl)) {
121418 +#if BUILDING_GCC_VERSION >= 4008
121419 + case BUILT_IN_BSWAP16:
121420 +#endif
121421 + case BUILT_IN_BSWAP32:
121422 + case BUILT_IN_BSWAP64:
121423 + case BUILT_IN_EXPECT:
121424 + case BUILT_IN_MEMCMP:
121425 + return false;
121426 + default:
121427 + break;
121428 + }
121429 +
121430 + // skip test.c
121431 + if (strcmp(DECL_NAME_POINTER(current_function_decl), "coolmalloc")) {
121432 + if (lookup_attribute("size_overflow", DECL_ATTRIBUTES(orig_fndecl)))
121433 + warning(0, "unnecessary size_overflow attribute on: %s\n", DECL_NAME_POINTER(orig_fndecl));
121434 + }
121435 +
121436 + if (is_in_hash_table(orig_fndecl, num))
121437 + return false;
121438 +
121439 + print_missing_msg(orig_fndecl, num);
121440 + return true;
121441 +}
121442 +
121443 diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c
121444 new file mode 100644
121445 index 0000000..dd94983
121446 --- /dev/null
121447 +++ b/tools/gcc/stackleak_plugin.c
121448 @@ -0,0 +1,376 @@
121449 +/*
121450 + * Copyright 2011-2014 by the PaX Team <pageexec@freemail.hu>
121451 + * Licensed under the GPL v2
121452 + *
121453 + * Note: the choice of the license means that the compilation process is
121454 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
121455 + * but for the kernel it doesn't matter since it doesn't link against
121456 + * any of the gcc libraries
121457 + *
121458 + * gcc plugin to help implement various PaX features
121459 + *
121460 + * - track lowest stack pointer
121461 + *
121462 + * TODO:
121463 + * - initialize all local variables
121464 + *
121465 + * BUGS:
121466 + * - none known
121467 + */
121468 +
121469 +#include "gcc-common.h"
121470 +
121471 +int plugin_is_GPL_compatible;
121472 +
121473 +static int track_frame_size = -1;
121474 +static const char track_function[] = "pax_track_stack";
121475 +static const char check_function[] = "pax_check_alloca";
121476 +static tree track_function_decl, check_function_decl;
121477 +static bool init_locals;
121478 +
121479 +static struct plugin_info stackleak_plugin_info = {
121480 + .version = "201402131920",
121481 + .help = "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n"
121482 +// "initialize-locals\t\tforcibly initialize all stack frames\n"
121483 +};
121484 +
121485 +static void stackleak_check_alloca(gimple_stmt_iterator *gsi)
121486 +{
121487 + gimple check_alloca;
121488 + tree alloca_size;
121489 +
121490 + // insert call to void pax_check_alloca(unsigned long size)
121491 + alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0);
121492 + check_alloca = gimple_build_call(check_function_decl, 1, alloca_size);
121493 + gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT);
121494 +}
121495 +
121496 +static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi)
121497 +{
121498 + gimple track_stack;
121499 +
121500 + // insert call to void pax_track_stack(void)
121501 + track_stack = gimple_build_call(track_function_decl, 0);
121502 + gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING);
121503 +}
121504 +
121505 +static bool is_alloca(gimple stmt)
121506 +{
121507 + if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA))
121508 + return true;
121509 +
121510 +#if BUILDING_GCC_VERSION >= 4007
121511 + if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN))
121512 + return true;
121513 +#endif
121514 +
121515 + return false;
121516 +}
121517 +
121518 +static unsigned int execute_stackleak_tree_instrument(void)
121519 +{
121520 + basic_block bb, entry_bb;
121521 + bool prologue_instrumented = false, is_leaf = true;
121522 +
121523 + entry_bb = ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb;
121524 +
121525 + // 1. loop through BBs and GIMPLE statements
121526 + FOR_EACH_BB_FN(bb, cfun) {
121527 + gimple_stmt_iterator gsi;
121528 +
121529 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
121530 + gimple stmt;
121531 +
121532 + stmt = gsi_stmt(gsi);
121533 +
121534 + if (is_gimple_call(stmt))
121535 + is_leaf = false;
121536 +
121537 + // gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450>
121538 + if (!is_alloca(stmt))
121539 + continue;
121540 +
121541 + // 2. insert stack overflow check before each __builtin_alloca call
121542 + stackleak_check_alloca(&gsi);
121543 +
121544 + // 3. insert track call after each __builtin_alloca call
121545 + stackleak_add_instrumentation(&gsi);
121546 + if (bb == entry_bb)
121547 + prologue_instrumented = true;
121548 + }
121549 + }
121550 +
121551 + // special cases for some bad linux code: taking the address of static inline functions will materialize them
121552 + // but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI
121553 + // will break other assumptions regarding the expected (but not otherwise enforced) register clobbering ABI.
121554 + // case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here.
121555 + if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl))
121556 + return 0;
121557 + if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10))
121558 + return 0;
121559 +
121560 + // 4. insert track call at the beginning
121561 + if (!prologue_instrumented) {
121562 + gimple_stmt_iterator gsi;
121563 +
121564 + bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
121565 + if (dom_info_available_p(CDI_DOMINATORS))
121566 + set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
121567 + gsi = gsi_start_bb(bb);
121568 + stackleak_add_instrumentation(&gsi);
121569 + }
121570 +
121571 + return 0;
121572 +}
121573 +
121574 +static unsigned int execute_stackleak_final(void)
121575 +{
121576 + rtx insn, next;
121577 +
121578 + if (cfun->calls_alloca)
121579 + return 0;
121580 +
121581 + // keep calls only if function frame is big enough
121582 + if (get_frame_size() >= track_frame_size)
121583 + return 0;
121584 +
121585 + // 1. find pax_track_stack calls
121586 + for (insn = get_insns(); insn; insn = next) {
121587 + // rtl match: (call_insn 8 7 9 3 (call (mem (symbol_ref ("pax_track_stack") [flags 0x41] <function_decl 0xb7470e80 pax_track_stack>) [0 S1 A8]) (4)) -1 (nil) (nil))
121588 + rtx body;
121589 +
121590 + next = NEXT_INSN(insn);
121591 + if (!CALL_P(insn))
121592 + continue;
121593 + body = PATTERN(insn);
121594 + if (GET_CODE(body) != CALL)
121595 + continue;
121596 + body = XEXP(body, 0);
121597 + if (GET_CODE(body) != MEM)
121598 + continue;
121599 + body = XEXP(body, 0);
121600 + if (GET_CODE(body) != SYMBOL_REF)
121601 + continue;
121602 +// if (strcmp(XSTR(body, 0), track_function))
121603 + if (SYMBOL_REF_DECL(body) != track_function_decl)
121604 + continue;
121605 +// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
121606 + // 2. delete call
121607 + delete_insn_and_edges(insn);
121608 +#if BUILDING_GCC_VERSION >= 4007
121609 + if (GET_CODE(next) == NOTE && NOTE_KIND(next) == NOTE_INSN_CALL_ARG_LOCATION) {
121610 + insn = next;
121611 + next = NEXT_INSN(insn);
121612 + delete_insn_and_edges(insn);
121613 + }
121614 +#endif
121615 + }
121616 +
121617 +// print_simple_rtl(stderr, get_insns());
121618 +// print_rtl(stderr, get_insns());
121619 +// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
121620 +
121621 + return 0;
121622 +}
121623 +
121624 +static bool gate_stackleak_track_stack(void)
121625 +{
121626 + return track_frame_size >= 0;
121627 +}
121628 +
121629 +static void stackleak_start_unit(void *gcc_data, void *user_data)
121630 +{
121631 + tree fntype;
121632 +
121633 + // void pax_track_stack(void)
121634 + fntype = build_function_type_list(void_type_node, NULL_TREE);
121635 + track_function_decl = build_fn_decl(track_function, fntype);
121636 + DECL_ASSEMBLER_NAME(track_function_decl); // for LTO
121637 + TREE_PUBLIC(track_function_decl) = 1;
121638 + DECL_EXTERNAL(track_function_decl) = 1;
121639 + DECL_ARTIFICIAL(track_function_decl) = 1;
121640 +
121641 + // void pax_check_alloca(unsigned long)
121642 + fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE);
121643 + check_function_decl = build_fn_decl(check_function, fntype);
121644 + DECL_ASSEMBLER_NAME(check_function_decl); // for LTO
121645 + TREE_PUBLIC(check_function_decl) = 1;
121646 + DECL_EXTERNAL(check_function_decl) = 1;
121647 + DECL_ARTIFICIAL(check_function_decl) = 1;
121648 +}
121649 +
121650 +#if BUILDING_GCC_VERSION >= 4009
121651 +static const struct pass_data stackleak_tree_instrument_pass_data = {
121652 +#else
121653 +static struct gimple_opt_pass stackleak_tree_instrument_pass = {
121654 + .pass = {
121655 +#endif
121656 + .type = GIMPLE_PASS,
121657 + .name = "stackleak_tree_instrument",
121658 +#if BUILDING_GCC_VERSION >= 4008
121659 + .optinfo_flags = OPTGROUP_NONE,
121660 +#endif
121661 +#if BUILDING_GCC_VERSION >= 4009
121662 + .has_gate = true,
121663 + .has_execute = true,
121664 +#else
121665 + .gate = gate_stackleak_track_stack,
121666 + .execute = execute_stackleak_tree_instrument,
121667 + .sub = NULL,
121668 + .next = NULL,
121669 + .static_pass_number = 0,
121670 +#endif
121671 + .tv_id = TV_NONE,
121672 + .properties_required = PROP_gimple_leh | PROP_cfg,
121673 + .properties_provided = 0,
121674 + .properties_destroyed = 0,
121675 + .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
121676 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa | TODO_rebuild_cgraph_edges
121677 +#if BUILDING_GCC_VERSION < 4009
121678 + }
121679 +#endif
121680 +};
121681 +
121682 +#if BUILDING_GCC_VERSION >= 4009
121683 +static const struct pass_data stackleak_final_rtl_opt_pass_data = {
121684 +#else
121685 +static struct rtl_opt_pass stackleak_final_rtl_opt_pass = {
121686 + .pass = {
121687 +#endif
121688 + .type = RTL_PASS,
121689 + .name = "stackleak_final",
121690 +#if BUILDING_GCC_VERSION >= 4008
121691 + .optinfo_flags = OPTGROUP_NONE,
121692 +#endif
121693 +#if BUILDING_GCC_VERSION >= 4009
121694 + .has_gate = true,
121695 + .has_execute = true,
121696 +#else
121697 + .gate = gate_stackleak_track_stack,
121698 + .execute = execute_stackleak_final,
121699 + .sub = NULL,
121700 + .next = NULL,
121701 + .static_pass_number = 0,
121702 +#endif
121703 + .tv_id = TV_NONE,
121704 + .properties_required = 0,
121705 + .properties_provided = 0,
121706 + .properties_destroyed = 0,
121707 + .todo_flags_start = 0,
121708 + .todo_flags_finish = TODO_dump_func
121709 +#if BUILDING_GCC_VERSION < 4009
121710 + }
121711 +#endif
121712 +};
121713 +
121714 +#if BUILDING_GCC_VERSION >= 4009
121715 +namespace {
121716 +class stackleak_tree_instrument_pass : public gimple_opt_pass {
121717 +public:
121718 + stackleak_tree_instrument_pass() : gimple_opt_pass(stackleak_tree_instrument_pass_data, g) {}
121719 + bool gate() { return gate_stackleak_track_stack(); }
121720 + unsigned int execute() { return execute_stackleak_tree_instrument(); }
121721 +};
121722 +
121723 +class stackleak_final_rtl_opt_pass : public rtl_opt_pass {
121724 +public:
121725 + stackleak_final_rtl_opt_pass() : rtl_opt_pass(stackleak_final_rtl_opt_pass_data, g) {}
121726 + bool gate() { return gate_stackleak_track_stack(); }
121727 + unsigned int execute() { return execute_stackleak_final(); }
121728 +};
121729 +}
121730 +
121731 +static opt_pass *make_stackleak_tree_instrument_pass(void)
121732 +{
121733 + return new stackleak_tree_instrument_pass();
121734 +}
121735 +
121736 +static opt_pass *make_stackleak_final_rtl_opt_pass(void)
121737 +{
121738 + return new stackleak_final_rtl_opt_pass();
121739 +}
121740 +#else
121741 +static struct opt_pass *make_stackleak_tree_instrument_pass(void)
121742 +{
121743 + return &stackleak_tree_instrument_pass.pass;
121744 +}
121745 +
121746 +static struct opt_pass *make_stackleak_final_rtl_opt_pass(void)
121747 +{
121748 + return &stackleak_final_rtl_opt_pass.pass;
121749 +}
121750 +#endif
121751 +
121752 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
121753 +{
121754 + const char * const plugin_name = plugin_info->base_name;
121755 + const int argc = plugin_info->argc;
121756 + const struct plugin_argument * const argv = plugin_info->argv;
121757 + int i;
121758 + struct register_pass_info stackleak_tree_instrument_pass_info;
121759 + struct register_pass_info stackleak_final_pass_info;
121760 + static const struct ggc_root_tab gt_ggc_r_gt_stackleak[] = {
121761 + {
121762 + .base = &track_function_decl,
121763 + .nelt = 1,
121764 + .stride = sizeof(track_function_decl),
121765 + .cb = &gt_ggc_mx_tree_node,
121766 + .pchw = &gt_pch_nx_tree_node
121767 + },
121768 + {
121769 + .base = &check_function_decl,
121770 + .nelt = 1,
121771 + .stride = sizeof(check_function_decl),
121772 + .cb = &gt_ggc_mx_tree_node,
121773 + .pchw = &gt_pch_nx_tree_node
121774 + },
121775 + LAST_GGC_ROOT_TAB
121776 + };
121777 +
121778 + stackleak_tree_instrument_pass_info.pass = make_stackleak_tree_instrument_pass();
121779 +// stackleak_tree_instrument_pass_info.reference_pass_name = "tree_profile";
121780 + stackleak_tree_instrument_pass_info.reference_pass_name = "optimized";
121781 + stackleak_tree_instrument_pass_info.ref_pass_instance_number = 1;
121782 + stackleak_tree_instrument_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
121783 +
121784 + stackleak_final_pass_info.pass = make_stackleak_final_rtl_opt_pass();
121785 + stackleak_final_pass_info.reference_pass_name = "final";
121786 + stackleak_final_pass_info.ref_pass_instance_number = 1;
121787 + stackleak_final_pass_info.pos_op = PASS_POS_INSERT_BEFORE;
121788 +
121789 + if (!plugin_default_version_check(version, &gcc_version)) {
121790 + error(G_("incompatible gcc/plugin versions"));
121791 + return 1;
121792 + }
121793 +
121794 + register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info);
121795 +
121796 + for (i = 0; i < argc; ++i) {
121797 + if (!strcmp(argv[i].key, "track-lowest-sp")) {
121798 + if (!argv[i].value) {
121799 + error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
121800 + continue;
121801 + }
121802 + track_frame_size = atoi(argv[i].value);
121803 + if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0)
121804 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
121805 + continue;
121806 + }
121807 + if (!strcmp(argv[i].key, "initialize-locals")) {
121808 + if (argv[i].value) {
121809 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
121810 + continue;
121811 + }
121812 + init_locals = true;
121813 + continue;
121814 + }
121815 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
121816 + }
121817 +
121818 + register_callback(plugin_name, PLUGIN_START_UNIT, &stackleak_start_unit, NULL);
121819 + register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_stackleak);
121820 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info);
121821 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info);
121822 +
121823 + return 0;
121824 +}
121825 diff --git a/tools/gcc/structleak_plugin.c b/tools/gcc/structleak_plugin.c
121826 new file mode 100644
121827 index 0000000..4ee2231
121828 --- /dev/null
121829 +++ b/tools/gcc/structleak_plugin.c
121830 @@ -0,0 +1,274 @@
121831 +/*
121832 + * Copyright 2013-2014 by PaX Team <pageexec@freemail.hu>
121833 + * Licensed under the GPL v2
121834 + *
121835 + * Note: the choice of the license means that the compilation process is
121836 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
121837 + * but for the kernel it doesn't matter since it doesn't link against
121838 + * any of the gcc libraries
121839 + *
121840 + * gcc plugin to forcibly initialize certain local variables that could
121841 + * otherwise leak kernel stack to userland if they aren't properly initialized
121842 + * by later code
121843 + *
121844 + * Homepage: http://pax.grsecurity.net/
121845 + *
121846 + * Usage:
121847 + * $ # for 4.5/4.6/C based 4.7
121848 + * $ gcc -I`gcc -print-file-name=plugin`/include -I`gcc -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
121849 + * $ # for C++ based 4.7/4.8+
121850 + * $ g++ -I`g++ -print-file-name=plugin`/include -I`g++ -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
121851 + * $ gcc -fplugin=./structleak_plugin.so test.c -O2
121852 + *
121853 + * TODO: eliminate redundant initializers
121854 + * increase type coverage
121855 + */
121856 +
121857 +#include "gcc-common.h"
121858 +
121859 +// unused C type flag in all versions 4.5-4.9
121860 +#define TYPE_USERSPACE(TYPE) TYPE_LANG_FLAG_3(TYPE)
121861 +
121862 +int plugin_is_GPL_compatible;
121863 +
121864 +static struct plugin_info structleak_plugin_info = {
121865 + .version = "201401260140",
121866 + .help = "disable\tdo not activate plugin\n",
121867 +};
121868 +
121869 +static tree handle_user_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
121870 +{
121871 + *no_add_attrs = true;
121872 +
121873 + // check for types? for now accept everything linux has to offer
121874 + if (TREE_CODE(*node) != FIELD_DECL)
121875 + return NULL_TREE;
121876 +
121877 + *no_add_attrs = false;
121878 + return NULL_TREE;
121879 +}
121880 +
121881 +static struct attribute_spec user_attr = {
121882 + .name = "user",
121883 + .min_length = 0,
121884 + .max_length = 0,
121885 + .decl_required = false,
121886 + .type_required = false,
121887 + .function_type_required = false,
121888 + .handler = handle_user_attribute,
121889 +#if BUILDING_GCC_VERSION >= 4007
121890 + .affects_type_identity = true
121891 +#endif
121892 +};
121893 +
121894 +static void register_attributes(void *event_data, void *data)
121895 +{
121896 + register_attribute(&user_attr);
121897 +// register_attribute(&force_attr);
121898 +}
121899 +
121900 +static tree get_field_type(tree field)
121901 +{
121902 + return strip_array_types(TREE_TYPE(field));
121903 +}
121904 +
121905 +static bool is_userspace_type(tree type)
121906 +{
121907 + tree field;
121908 +
121909 + for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
121910 + tree fieldtype = get_field_type(field);
121911 + enum tree_code code = TREE_CODE(fieldtype);
121912 +
121913 + if (code == RECORD_TYPE || code == UNION_TYPE)
121914 + if (is_userspace_type(fieldtype))
121915 + return true;
121916 +
121917 + if (lookup_attribute("user", DECL_ATTRIBUTES(field)))
121918 + return true;
121919 + }
121920 + return false;
121921 +}
121922 +
121923 +static void finish_type(void *event_data, void *data)
121924 +{
121925 + tree type = (tree)event_data;
121926 +
121927 + if (TYPE_USERSPACE(type))
121928 + return;
121929 +
121930 + if (is_userspace_type(type))
121931 + TYPE_USERSPACE(type) = 1;
121932 +}
121933 +
121934 +static void initialize(tree var)
121935 +{
121936 + basic_block bb;
121937 + gimple_stmt_iterator gsi;
121938 + tree initializer;
121939 + gimple init_stmt;
121940 +
121941 + // this is the original entry bb before the forced split
121942 + // TODO: check further BBs in case more splits occured before us
121943 + bb = ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb->next_bb;
121944 +
121945 + // first check if the variable is already initialized, warn otherwise
121946 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
121947 + gimple stmt = gsi_stmt(gsi);
121948 + tree rhs1;
121949 +
121950 + // we're looking for an assignment of a single rhs...
121951 + if (!gimple_assign_single_p(stmt))
121952 + continue;
121953 + rhs1 = gimple_assign_rhs1(stmt);
121954 +#if BUILDING_GCC_VERSION >= 4007
121955 + // ... of a non-clobbering expression...
121956 + if (TREE_CLOBBER_P(rhs1))
121957 + continue;
121958 +#endif
121959 + // ... to our variable...
121960 + if (gimple_get_lhs(stmt) != var)
121961 + continue;
121962 + // if it's an initializer then we're good
121963 + if (TREE_CODE(rhs1) == CONSTRUCTOR)
121964 + return;
121965 + }
121966 +
121967 + // these aren't the 0days you're looking for
121968 +// inform(DECL_SOURCE_LOCATION(var), "userspace variable will be forcibly initialized");
121969 +
121970 + // build the initializer expression
121971 + initializer = build_constructor(TREE_TYPE(var), NULL);
121972 +
121973 + // build the initializer stmt
121974 + init_stmt = gimple_build_assign(var, initializer);
121975 + gsi = gsi_start_bb(ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb);
121976 + gsi_insert_before(&gsi, init_stmt, GSI_NEW_STMT);
121977 + update_stmt(init_stmt);
121978 +}
121979 +
121980 +static unsigned int handle_function(void)
121981 +{
121982 + basic_block bb;
121983 + unsigned int ret = 0;
121984 + tree var;
121985 + unsigned int i;
121986 +
121987 + // split the first bb where we can put the forced initializers
121988 + bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
121989 + if (dom_info_available_p(CDI_DOMINATORS))
121990 + set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
121991 +
121992 + // enumarate all local variables and forcibly initialize our targets
121993 + FOR_EACH_LOCAL_DECL(cfun, i, var) {
121994 + tree type = TREE_TYPE(var);
121995 +
121996 + gcc_assert(DECL_P(var));
121997 + if (!auto_var_in_fn_p(var, current_function_decl))
121998 + continue;
121999 +
122000 + // only care about structure types
122001 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
122002 + continue;
122003 +
122004 + // if the type is of interest, examine the variable
122005 + if (TYPE_USERSPACE(type))
122006 + initialize(var);
122007 + }
122008 +
122009 + return ret;
122010 +}
122011 +
122012 +#if BUILDING_GCC_VERSION >= 4009
122013 +static const struct pass_data structleak_pass_data = {
122014 +#else
122015 +static struct gimple_opt_pass structleak_pass = {
122016 + .pass = {
122017 +#endif
122018 + .type = GIMPLE_PASS,
122019 + .name = "structleak",
122020 +#if BUILDING_GCC_VERSION >= 4008
122021 + .optinfo_flags = OPTGROUP_NONE,
122022 +#endif
122023 +#if BUILDING_GCC_VERSION >= 4009
122024 + .has_gate = false,
122025 + .has_execute = true,
122026 +#else
122027 + .gate = NULL,
122028 + .execute = handle_function,
122029 + .sub = NULL,
122030 + .next = NULL,
122031 + .static_pass_number = 0,
122032 +#endif
122033 + .tv_id = TV_NONE,
122034 + .properties_required = PROP_cfg,
122035 + .properties_provided = 0,
122036 + .properties_destroyed = 0,
122037 + .todo_flags_start = 0,
122038 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa | TODO_ggc_collect | TODO_verify_flow
122039 +#if BUILDING_GCC_VERSION < 4009
122040 + }
122041 +#endif
122042 +};
122043 +
122044 +#if BUILDING_GCC_VERSION >= 4009
122045 +namespace {
122046 +class structleak_pass : public gimple_opt_pass {
122047 +public:
122048 + structleak_pass() : gimple_opt_pass(structleak_pass_data, g) {}
122049 + unsigned int execute() { return handle_function(); }
122050 +};
122051 +}
122052 +
122053 +static opt_pass *make_structleak_pass(void)
122054 +{
122055 + return new structleak_pass();
122056 +}
122057 +#else
122058 +static struct opt_pass *make_structleak_pass(void)
122059 +{
122060 + return &structleak_pass.pass;
122061 +}
122062 +#endif
122063 +
122064 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
122065 +{
122066 + int i;
122067 + const char * const plugin_name = plugin_info->base_name;
122068 + const int argc = plugin_info->argc;
122069 + const struct plugin_argument * const argv = plugin_info->argv;
122070 + bool enable = true;
122071 + struct register_pass_info structleak_pass_info;
122072 +
122073 + structleak_pass_info.pass = make_structleak_pass();
122074 + structleak_pass_info.reference_pass_name = "ssa";
122075 + structleak_pass_info.ref_pass_instance_number = 1;
122076 + structleak_pass_info.pos_op = PASS_POS_INSERT_AFTER;
122077 +
122078 + if (!plugin_default_version_check(version, &gcc_version)) {
122079 + error(G_("incompatible gcc/plugin versions"));
122080 + return 1;
122081 + }
122082 +
122083 + if (strcmp(lang_hooks.name, "GNU C")) {
122084 + inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
122085 + enable = false;
122086 + }
122087 +
122088 + for (i = 0; i < argc; ++i) {
122089 + if (!strcmp(argv[i].key, "disable")) {
122090 + enable = false;
122091 + continue;
122092 + }
122093 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
122094 + }
122095 +
122096 + register_callback(plugin_name, PLUGIN_INFO, NULL, &structleak_plugin_info);
122097 + if (enable) {
122098 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &structleak_pass_info);
122099 + register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
122100 + }
122101 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
122102 +
122103 + return 0;
122104 +}
122105 diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
122106 index fbc6665..5e9ce79 100644
122107 --- a/tools/include/linux/compiler.h
122108 +++ b/tools/include/linux/compiler.h
122109 @@ -35,4 +35,12 @@
122110 # define unlikely(x) __builtin_expect(!!(x), 0)
122111 #endif
122112
122113 +#ifndef __size_overflow
122114 +# define __size_overflow(...)
122115 +#endif
122116 +
122117 +#ifndef __intentional_overflow
122118 +# define __intentional_overflow(...)
122119 +#endif
122120 +
122121 #endif /* _TOOLS_LINUX_COMPILER_H */
122122 diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
122123 index ce00f7e..0aca5e4 100644
122124 --- a/tools/lib/api/Makefile
122125 +++ b/tools/lib/api/Makefile
122126 @@ -16,7 +16,7 @@ LIB_OBJS += $(OUTPUT)fs/fs.o
122127
122128 LIBFILE = libapikfs.a
122129
122130 -CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
122131 +CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
122132 EXTLIBS = -lelf -lpthread -lrt -lm
122133 ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
122134 ALL_LDFLAGS = $(LDFLAGS)
122135 diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h
122136 index 6789d788..4afd019e 100644
122137 --- a/tools/perf/util/include/asm/alternative-asm.h
122138 +++ b/tools/perf/util/include/asm/alternative-asm.h
122139 @@ -5,4 +5,7 @@
122140
122141 #define altinstruction_entry #
122142
122143 + .macro pax_force_retaddr rip=0, reload=0
122144 + .endm
122145 +
122146 #endif
122147 diff --git a/tools/virtio/linux/uaccess.h b/tools/virtio/linux/uaccess.h
122148 index 0a578fe..b81f62d 100644
122149 --- a/tools/virtio/linux/uaccess.h
122150 +++ b/tools/virtio/linux/uaccess.h
122151 @@ -13,7 +13,7 @@ static inline void __chk_user_ptr(const volatile void *p, size_t size)
122152 ({ \
122153 typeof(ptr) __pu_ptr = (ptr); \
122154 __chk_user_ptr(__pu_ptr, sizeof(*__pu_ptr)); \
122155 - ACCESS_ONCE(*(__pu_ptr)) = x; \
122156 + ACCESS_ONCE_RW(*(__pu_ptr)) = x; \
122157 0; \
122158 })
122159
122160 diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
122161 index 56baae8..2c889c2 100644
122162 --- a/virt/kvm/kvm_main.c
122163 +++ b/virt/kvm/kvm_main.c
122164 @@ -76,12 +76,17 @@ LIST_HEAD(vm_list);
122165
122166 static cpumask_var_t cpus_hardware_enabled;
122167 static int kvm_usage_count = 0;
122168 -static atomic_t hardware_enable_failed;
122169 +static atomic_unchecked_t hardware_enable_failed;
122170
122171 struct kmem_cache *kvm_vcpu_cache;
122172 EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
122173
122174 -static __read_mostly struct preempt_ops kvm_preempt_ops;
122175 +static void kvm_sched_in(struct preempt_notifier *pn, int cpu);
122176 +static void kvm_sched_out(struct preempt_notifier *pn, struct task_struct *next);
122177 +static struct preempt_ops kvm_preempt_ops = {
122178 + .sched_in = kvm_sched_in,
122179 + .sched_out = kvm_sched_out,
122180 +};
122181
122182 struct dentry *kvm_debugfs_dir;
122183
122184 @@ -755,7 +760,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
122185 /* We can read the guest memory with __xxx_user() later on. */
122186 if ((mem->slot < KVM_USER_MEM_SLOTS) &&
122187 ((mem->userspace_addr & (PAGE_SIZE - 1)) ||
122188 - !access_ok(VERIFY_WRITE,
122189 + !access_ok_noprefault(VERIFY_WRITE,
122190 (void __user *)(unsigned long)mem->userspace_addr,
122191 mem->memory_size)))
122192 goto out;
122193 @@ -1612,9 +1617,17 @@ EXPORT_SYMBOL_GPL(kvm_read_guest_cached);
122194
122195 int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
122196 {
122197 - const void *zero_page = (const void *) __va(page_to_phys(ZERO_PAGE(0)));
122198 + int r;
122199 + unsigned long addr;
122200
122201 - return kvm_write_guest_page(kvm, gfn, zero_page, offset, len);
122202 + addr = gfn_to_hva(kvm, gfn);
122203 + if (kvm_is_error_hva(addr))
122204 + return -EFAULT;
122205 + r = __clear_user((void __user *)addr + offset, len);
122206 + if (r)
122207 + return -EFAULT;
122208 + mark_page_dirty(kvm, gfn);
122209 + return 0;
122210 }
122211 EXPORT_SYMBOL_GPL(kvm_clear_guest_page);
122212
122213 @@ -1864,7 +1877,7 @@ static int kvm_vcpu_release(struct inode *inode, struct file *filp)
122214 return 0;
122215 }
122216
122217 -static struct file_operations kvm_vcpu_fops = {
122218 +static file_operations_no_const kvm_vcpu_fops __read_only = {
122219 .release = kvm_vcpu_release,
122220 .unlocked_ioctl = kvm_vcpu_ioctl,
122221 #ifdef CONFIG_COMPAT
122222 @@ -2534,7 +2547,7 @@ out:
122223 }
122224 #endif
122225
122226 -static struct file_operations kvm_vm_fops = {
122227 +static file_operations_no_const kvm_vm_fops __read_only = {
122228 .release = kvm_vm_release,
122229 .unlocked_ioctl = kvm_vm_ioctl,
122230 #ifdef CONFIG_COMPAT
122231 @@ -2634,7 +2647,7 @@ out:
122232 return r;
122233 }
122234
122235 -static struct file_operations kvm_chardev_ops = {
122236 +static file_operations_no_const kvm_chardev_ops __read_only = {
122237 .unlocked_ioctl = kvm_dev_ioctl,
122238 .compat_ioctl = kvm_dev_ioctl,
122239 .llseek = noop_llseek,
122240 @@ -2660,7 +2673,7 @@ static void hardware_enable_nolock(void *junk)
122241
122242 if (r) {
122243 cpumask_clear_cpu(cpu, cpus_hardware_enabled);
122244 - atomic_inc(&hardware_enable_failed);
122245 + atomic_inc_unchecked(&hardware_enable_failed);
122246 printk(KERN_INFO "kvm: enabling virtualization on "
122247 "CPU%d failed\n", cpu);
122248 }
122249 @@ -2716,10 +2729,10 @@ static int hardware_enable_all(void)
122250
122251 kvm_usage_count++;
122252 if (kvm_usage_count == 1) {
122253 - atomic_set(&hardware_enable_failed, 0);
122254 + atomic_set_unchecked(&hardware_enable_failed, 0);
122255 on_each_cpu(hardware_enable_nolock, NULL, 1);
122256
122257 - if (atomic_read(&hardware_enable_failed)) {
122258 + if (atomic_read_unchecked(&hardware_enable_failed)) {
122259 hardware_disable_all_nolock();
122260 r = -EBUSY;
122261 }
122262 @@ -3123,7 +3136,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
122263 kvm_arch_vcpu_put(vcpu);
122264 }
122265
122266 -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
122267 +int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
122268 struct module *module)
122269 {
122270 int r;
122271 @@ -3170,7 +3183,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
122272 if (!vcpu_align)
122273 vcpu_align = __alignof__(struct kvm_vcpu);
122274 kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align,
122275 - 0, NULL);
122276 + SLAB_USERCOPY, NULL);
122277 if (!kvm_vcpu_cache) {
122278 r = -ENOMEM;
122279 goto out_free_3;
122280 @@ -3180,9 +3193,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
122281 if (r)
122282 goto out_free;
122283
122284 + pax_open_kernel();
122285 kvm_chardev_ops.owner = module;
122286 kvm_vm_fops.owner = module;
122287 kvm_vcpu_fops.owner = module;
122288 + pax_close_kernel();
122289
122290 r = misc_register(&kvm_dev);
122291 if (r) {
122292 @@ -3192,9 +3207,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
122293
122294 register_syscore_ops(&kvm_syscore_ops);
122295
122296 - kvm_preempt_ops.sched_in = kvm_sched_in;
122297 - kvm_preempt_ops.sched_out = kvm_sched_out;
122298 -
122299 r = kvm_init_debug();
122300 if (r) {
122301 printk(KERN_ERR "kvm: create debugfs files failed\n");
Unofficial grsecurity patch archive (https://github.com/slashbeast/grsecurity-scrape)